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HomeMy WebLinkAboutDDW-2024-006526 COTTONWOOD MUTUAL WATER COMPANY 400,000 Gallon Upper Tank TECHNICAL SPECIFICATIONS March 2024 Prepared For: Cottonwood Mutual Water Company Prepared By: BT Engineering 3-12-24 CMWC – 400,000 Gallon Upper Tank Table of Contents TABLE OF CONTENTS 400,000 Gallon Upper Tank Reference No. of Number Title Pages TECHNICAL SPECIFICATIONS 01 11 00 Summary of Work ........................................................................................................ 1 01 14 13 Site Access .............................................................................................................. 2 01 33 00 Submittal Procedures .................................................................................................... 4 01 35 00 Safety and Site Guidelines............................................................................................ 5 01 45 00 Quality Control and Materials Testing ......................................................................... 4 01 45 10 Testing Agency Services .............................................................................................. 3 01 50 00 Temporary Controls ...................................................................................................... 4 01 50 30 Protection of Existing Facilities ................................................................................... 5 01 52 00 Construction Facilities .................................................................................................. 3 01 71 13 Mobilization .................................................................................................................. 2 01 71 23 Construction Surveying ................................................................................................ 2 03 10 00 Concrete Formwork ...................................................................................................... 7 03 20 00 Concrete Reinforcement ............................................................................................... 5 03 25 30 Concrete Joints and Waterstops ................................................................................... 3 03 30 00 Cast-In-Place Concrete ............................................................................................... 22 05 05 10 Hot-Dip Galvanizing .................................................................................................... 1 05 50 00 Miscellaneous Metalwork ............................................................................................ 2 07 16 16 Xypex Admixture ......................................................................................................... 6 08 31 00 Access Hatches ............................................................................................................. 3 31 05 19 Geosynthetics ................................................................................................................ 5 31 05 21 PVC Liner ..................................................................................................................... 5 31 11 00 Clearing, Grubbing and Stripping ................................................................................ 2 31 22 00 Site Grading .................................................................................................................. 2 31 23 23 Excavation and Backfill for Structures ........................................................................ 4 31 41 00 Shoring .......................................................................................................................... 1 32 11 23 Road Base – Untreated Base Course ............................................................................ 3 32 90 00 Landscaping .................................................................................................................. 2 33 05 02 Trenching ...................................................................................................................... 6 33 10 00 Piping Materials and Components ............................................................................... 4 33 12 16 Water Valves and Accessories ..................................................................................... 4 33 16 16 Reinforced Concrete Water Storage Reservoir ............................................................ 6 APPENDIX A – Geostrata Geotechnical Report END OF TABLE OF CONTENTS CMWC – 400,000 Gallon Upper Tank 01 10 00-1 SECTION 01 10 00 SUMMARY OF WORK PART 1 GENERAL GENERAL The work to be performed under this project shall consist of furnishing all labor, materials, and equipment necessary or required to complete the work in all respects as shown on the plans Drawings and as herein specified. WORK COVERED BY CONTRACT DOCUMENTS Construction of a new 400,000 gallon reinforced concrete tank along with all appurtenances and piping shown within the plans. CONTRACTOR USE OF PREMISES CONTRACTOR's use of the project site shall be limited to its construction operations, including on-site storage of materials, on-site fabrication facilities. PROJECT SECURITY CONTRACTOR shall make all necessary provisions to protect the project and CONTRACTOR's facilities from fire, theft, and vandalism, and the public from unnecessary exposure to injury. CHANGES IN THE WORK It is mutually understood that it is inherent in the nature of public works construction that some changes in the plans and specifications may be necessary during the course of construction to adjust them to unforeseen field conditions, and that it is of the essence of the Contract to recognize a normal and expected margin of change. ENGINEER shall have the right to make such changes, from time to time, in the plans, in the character if the work, and in the scope of the project as may be necessary or desirable to ensure the completion of the work in the most satisfactory manner without invalidating the Contract. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 14 13-1 SECTION 01 14 13 SITE ACCESS PART 1 HIGHWAY LIMITATIONS A. The Contractor shall make its own investigation of the condition of available public and private roads and of clearances, restrictions, bridge load limits, and other limitations affecting transportation and ingress and egress to the site of the work. It shall be the Contractor's responsibility to construct, maintain and restore, at his own expense, any haul roads or staging areas required for his construction operations. PART 2 TEMPORARY ACCESS A. General. Wherever necessary or required for the convenience of the public or individual residents at street or highway crossings, private driveways, or elsewhere, the Contractor shall provide suitable temporary bridges over unfilled excavations, except in such cases as the Contractor shall secure the written consent of the individuals or authorities concerned to omit such temporary bridges, which written consent shall be delivered to the Engineer prior to excavation. All such bridges shall be maintained in service until access is provided across the backfilled excavation. Temporary bridges for street and highway crossing shall conform to the requirements of the authority having jurisdiction in each case, and the Contractor shall adopt designs furnished by said authority for such bridges, or shall submit designs to said authority having jurisdiction in each case, and the Contractor shall adopt designs furnished by said authority for such bridges, or shall submit designs to said authority for approval, as may be required. B. Street Use. Nothing herein shall be construed to entitled the Contractor to the exclusive use of any public street, alley, way, or parking area during the performance of the work hereunder, and he shall so conduct his operations as not to interfere unnecessarily with the authorized work of utility companies or other agencies in such streets, alleys, ways, or parking areas. No street shall be closed to the public without first obtaining permission of the Engineer and proper governmental authority. Where excavation is being performed in primary streets or highways, one lane in each direction shall be kept open to traffic at all times unless otherwise provided or shown. Toe boards shall be provided to retain excavated material if required by the Engineer or the agency having jurisdiction over the street or highway. Fire hydrants on or adjacent to the work shall be kept accessible to fire-fighting equipment at all times. Temporary provisions shall be made by the Contractor to assure the use of sidewalks and the proper functioning of all gutters, sewer inlets, and other drainage facilities. CMWC – 400,000 Gallon Upper Tank 01 14 13-2 D. Street Closure. If closure of any street is required during construction, a formal application for a street closure shall be made to the authority having jurisdiction at least 30 days prior to the required street closure in order to determine necessary signing and detour requirements. E. Construction Through Private Property. The Owner will provide easement agreements with private property owners along the construction routes. The Contractor shall confine all his operation to the area within the easement limits. In general, the easement area is intended to provide reasonable access and working area for efficient operation by the Contractor. If the Contractor desires to have additional easement width and/or additional access routes, the Contractor shall negotiate with and compensate the private property owners for such use at the Contractor's expense. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 33 00- 1 SECTION 01 33 00 SUBMITTAL PROCEDURES GENERAL 1.1 SUBMITTAL PROCEDURES A. Sequentially number transmittal forms. Mark revised submittals with original number and sequential alphabetic suffix. B. Identify Project, Contractor, subcontractor and supplier; pertinent drawing and detail number, and specification section number, appropriate to submittal. C. Apply Contractor's stamp, signed or initialed certifying that review, approval, verification of products required, field dimensions, adjacent construction Work, and coordination of information is in accordance with requirements of the Work and Contract Documents. D. Schedule submittals to expedite Project, and deliver to Engineer at business address. Coordinate submission of related items. E. Submittals shall be submitted sufficiently in advance to allow the ENGINEER not less than ten regular working days for examining the drawings. These drawings shall be accurate, distinct, and complete and shall contain all required information, including satisfactory identification of items and unit assemblies in relation to the contract drawings and/or specifications. F. Identify variations from Contract Documents and product or system limitations which may be detrimental to successful performance of completed Work. G. When revised for resubmission, identify changes made since previous submission. H. Distribute copies of reviewed submittals as appropriate. Instruct parties to promptly report inability to comply with requirements. I. Submittals not requested will not be recognized or processed. J. The ENGINEER's review of CONTRACTOR submittals shall not relieve CONTRACTOR of the entire responsibility for the corrections of details and dimensions. CONTRACTOR shall assume all responsibility and risk for any misfits due to any errors in CONTRACTOR submittals. CONTRACTOR shall be responsible for dimensions and the design of adequate connections and details. CMWC – 400,000 Gallon Upper Tank 01 33 00- 2 1.2 CONSTRUCTION PROGRESS SCHEDULES A. Submit initial schedules within 15 days after date of Owner-Contractor Agreement. After review, resubmit required revised data within ten days. B. Submit revised Progress Schedules with each Application for Payment. C. Distribute copies of reviewed schedules to Project site file, subcontractors, suppliers, and other concerned parties. D. Instruct recipients to promptly report, in writing, problems anticipated by projections indicated in schedules. E. Submit computer generated horizontal bar chart with separate line for each major portion of Work or operation, identifying first work day of each week. F. Show complete sequence of construction by activity, identifying Work of separate stages and other logically grouped activities. Indicate early and late start, early and late finish, float dates, and duration. G. Indicate estimated percentage of completion for each item of Work at each submission. H. Submit separate schedule of submittal dates for shop drawings, product data, and samples. 1.3 PRODUCT DATA A. Product Data: Submit to Engineer for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents. B. Mark each copy to identify applicable products, models, options, and other data. Supplement manufacturers' standard data to provide information specific to this Project. 1.4 SHOP DRAWINGS A. Shop Drawings: Submit to Engineer for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents. B. Fabrication of an item may be commenced only after the ENGINEER has reviewed the pertinent submittals and returned copies to CONTRACTOR marked either "Approved", or "Approved - Except as Noted". Corrections indicated on submittals shall be considered as changes necessary to meet the requirements of the Contract Documents and shall not be taken as the basis of claims for extra work. CMWC – 400,000 Gallon Upper Tank 01 33 00- 3 C. When required by individual specification sections, provide shop drawings signed and sealed by professional engineer responsible for designing components shown on shop drawings. 1. Include signed and sealed calculations to support design. 2. Submit drawings and calculations in form suitable for submission to and approval by authorities having jurisdiction. 3. Make revisions and provide additional information when required by authorities having jurisdiction. D. After review, produce copies and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents described in Section 01 78 50 - Project Closeout. 1.5 SAMPLES A. Whenever indicated in the specifications or requested by the ENGINEER, CONTRACTOR shall submit at least 1 sample of each item or material to the ENGINEER for acceptance at no additional cost to OWNER. B. Samples, as required herein, shall be submitted for acceptance prior to ordering such material for delivery to the jobsite, and shall be submitted in an orderly sequence so that dependent materials or equipment can be assembled and reviewed without causing delay in the Work. C. Unless otherwise specified, all colors and textures of specified items will be selected by the ENGINEER from the manufacturer's standard colors and standard materials, products, or equipment lines. 1.6 CERTIFICATES A. When specified in individual specification sections, submit certification by manufacturer, installation/application subcontractor, or Contractor to Engineer, in quantities specified for Product Data. B. Indicate material or product conforms to or exceeds specified requirements. Submit supporting reference data, affidavits, and certifications as appropriate. C. Certificates may be recent or previous test results on material or Product, but must be acceptable to Engineer. CMWC – 400,000 Gallon Upper Tank 01 33 00- 4 1.7 MANUFACTURER'S INSTRUCTIONS A. When specified in individual specification sections, submit printed instructions for delivery, storage, assembly, installation, start-up, adjusting, and finishing, to Engineer for delivery to Owner in quantities specified for Product Data. B. Indicate special procedures, perimeter conditions requiring special attention, and special environmental criteria required for application or installation. 1.8 MANUFACTURER'S FIELD REPORTS A. When required in individual sections, have manufacturer or Supplier provide qualified representative to observe field conditions, conditions of surfaces and installation, quality of workmanship, start-up of equipment, test, adjust, and balance of equipment as applicable and to make written report of observations and recommendations to ENGINEER. PRODUCTS - Not Used EXECUTION - Not Used END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 35 00-1 SECTION 01 35 00 SAFETY AND SITE GUIDELINES PART 1 GENERAL 1.1 CONSTRUCTION AREA PLAN A. Construction activities are to be limited to within limits of disturbance as per plans or elements with the exception of access drives and utility improvements. 1.2 OSHA COMPLIANCE A. All applicable Occupational Safety and Health Act (OSHA) regulations and guidelines are to be observed at all times. 1.3 ACCESS TO CONSTRUCTION AREA A. Access during construction or other improvements is to be approved by the OWNER/CITY in accordance with the following requirements: 1. All Construction Vehicles are to be identified with the Contractor’s name. 2. Material and equipment deliveries are to be consolidated to the extent feasible. 1.4 CONSTRUCTION PARKING AREAS A. All vehicle and parking areas are to be managed in accordance with the following requirements: 1. Construction crews are not to park on, or otherwise use, the natural area, streets, and neighboring properties. All vehicles are to be parked in approved parking areas. 2. During busy construction periods involving multiple trades when all Construction Vehicles cannot be accommodated on the site, the OWNER may grant permission for overflow vehicles to temporarily park in designated areas. 3. Vehicles parked on the road may not impede access to normal traffic and emergency vehicles, including fire trucks. Where parking on the shoulder occurs, all damage to the shoulder and landscape is to be repaired by the CONTRACTOR continually and not left for the end of construction. Vehicles may not be parked outside of the Construction Area. 4. No vehicle repair is allowed on the site except in case of emergency or within a fully-enclosed garage. Normal maintenance of CONTRACTOR equipment is allowed. 1.5 DELIVERY AND STORAGE OF MATERIALS & EQUIPMENT A. CONTRACTOR is responsible for ensuring all SUBCONTRACTORS and SUPPLIERS obey all posted speed limits and traffic regulations. The following, additional Guidelines apply to all material delivery and storage: CMWC – 400,000 Gallon Upper Tank 01 35 00-2 1. All building materials, equipment and machinery are to be delivered to and remain within the limits of disturbance. This requirement includes all building materials, earth-moving equipment, trailers, generators, mixers, cranes and any other equipment or machinery that will remain on the Construction Site overnight. 2. Delivery vehicles may not drive across neighboring properties to access a construction site. 3. Delivery route maps and site supervisor contact information sheets are to be provided to all delivery personnel. 4. Delivery personnel are to use adequate winter tires and/or chains during inclement winter weather. 1.6 SITE VISITATIONS A. Due to the inherent danger associated with Construction Activities, visitors to any Construction Site are limited to those persons (such as construction workers, tradesmen, County or City agents, security staff and OWNER staff) with official business relating to the construction. Construction personnel are not to invite or bring family members or friends, especially children, to the job site. 1.7 FIRE AND SAFETY PRECAUTIONS A. The following fire and safety precautions are to be adhered to at all Construction Sites: 1. On-site fires are not allowed. 2. All fires are to be reported even if it is thought to be contained or extinguished. 3. One or more persons are to be appointed as the individual(s) responsible for reporting emergencies and/or phoning 911. 4. Access for emergency vehicles is to be maintained at all times. 5. Access to fire hydrants, emergency water tanks and emergency turnouts are not to be blocked at any time. 6. Smoking materials are to be discarded in approved containers. 7. A minimum of one shovel and two 20-pound ABC-Rated Dry Chemical Fire Extinguishers are to be mounted in plain view. 8. All equipment, including small tools, must utilize a working spark arrestor. PART 2 EQUIPMENT 2.1 CONSTRUCTION TRAILERS AND/OR TEMPORARY STRUCTURES A. Upon approval, a temporary construction trailer or portable field office may be located on the project site within limits of disturbance, CMWC – 400,000 Gallon Upper Tank 01 35 00-3 2.2 SANITARY FACILITIES A. CONTRACTOR is responsible for providing adequate sanitary facilities for construction workers. Portable toilets are to be located within the limits of disturbance and are not to be located within 50 feet of drainages and/or other sensitive resources. 2.3 DEBRIS AND WASTE REMOVAL A. The following debris and waste removal procedures are to be adhered to at all Construction Sites: 1. Dumping, burying and/or burning trash is not permitted anywhere within the Project Site. No trash of any kind is to be placed in utility trenches. 2. Heavy and large debris, such as broken stone and wood scraps, are to be removed from the site immediately upon completion of each work trade. 3. Concrete washout, from both trucks and mixers, is to be contained within the limits of disturbance and concealed by structure or covered with backfill. Concrete washout in road rights-of-way, setbacks or on neighboring properties is strictly prohibited. 4. Dirt, mud and/or other debris are to be promptly removed from public or private roads, open spaces, and driveways. Trucks and other equipment are to be washed clean of dirt and other debris prior to leaving the site. 2.4 HAZARDOUS WASTE A. In order to monitor hazardous material use and/or respond quickly to spills, the CONTRACTOR is to comply with the following criteria: 1. The CONTRACTOR is to provide a contact person and telephone number for a company experienced in emergency response for vacuuming and containing spills for oil or other petroleum products. 2. In the event of a spill, the CONTRACTOR is to immediately attempt to stop the flow of contaminants. 3. Absorbent sheets are to be used for spill prevention and clean up. Several boxes are to be located at fuel trucks, storage areas and in maintenance vehicles. Inventories are to be maintained as necessary. 4. The responsible on-site CONTRACTOR is to commit all necessary manpower, equipment and materials to the containment and rapid clean-up of spills. 5. After any reportable spill (one or more gallons) is contained; the CONTRACTOR is to notify the appropriate local, state and federal agencies as well as the OWNER. 6. The CONTRACTOR is to maintain a list of product names and a Materials Safety Data Sheet (MSDS) for all hazardous material products used or located on-site. In the event of a leak, spill or release, the CONTRACTOR is to provide the MSDS to emergency personnel. CMWC – 400,000 Gallon Upper Tank 01 35 00-4 7. Equipment is to be fueled in designated staging areas only. Equipment that cannot be readily moved to designated staging areas is to be fueled a minimum of 100 feet from known drainage courses. 8. Fuel storage tanks must have adequately constructed catch basins. 9. Prior to storing a hazardous material, the CONTRACTOR is to ensure that: - The material is stored in an approved container - The container is tightly sealed - The container has the proper warning label - The container is inspected for leaks 10. Inspect equipment and vehicles for damaged hoses, leaks and hazards prior to the start and end of each shift. Do not run equipment that is leaking hazardous products. 11. Intentional or unreported spillage or dumping of fuels, hydraulics, solvents and other hazardous materials will be cause for eviction. 2.5 TREE/SHRUB AND HABITAT PROTECTION A. The following Guidelines apply to the protection of trees, shrubs and other vegetation during construction operations: 1. Trees/shrubs are not to be removed without prior approval from the OWNER. 2. Before construction starts, exclusionary fencing is to be installed around the perimeter of all trees/shrubs not approved for removal. 3. Fencing material is to be highly visible and sturdy. 4. Construction equipment or activity is not permitted within the fenced area (exclusionary zone) without written authorization from the OWNER. 5. Adequate drainage is to be provided to prevent ponding of water around the base of trees/shrubs. 6. Soil compaction is to be avoided around all trees/shrubs. 7. Mesh netting is to be used to protect trees/shrubs from dust and paint drift. 2.6 AIR QUALITY CONTROL A. Air quality control procedures are to be in accordance with the following requirements: 1. Construction equipment exhaust emissions are not to exceed local code requirements for air pollution limitations. 2. Open burning of removed vegetation is not permitted. 2.7 DAMAGE, REPAIR AND RESTORATION A. Damage and scarring to other property, including streets, neighboring properties, existing buildings, roads, driveways and/or other Improvements will not be permitted. If any such damage occurs, it is to be repaired and/or restored promptly at the expense of the person causing the damage or the CONTRACTOR whose personnel or subcontractor caused the damage. CMWC – 400,000 Gallon Upper Tank 01 35 00-5 1. Upon completion of construction, each OWNER and CONTRACTOR is to clean his Construction Site and any neighboring sites that have been impacted and repair all property, which has been damaged. 2. The CONTRACTOR is financially responsible for site restoration/revegetation and refuse removal necessitated on any and all adjacent properties as a result of trespass or negligence by their employees or sub-contracted agents. PART 3 EXECUTION 3.1 ALCOHOL AND CONTROLLED SUBSTANCES A. The consumption of alcohol or use of any controlled substance by construction personnel anywhere within the project is prohibited. 3.2 NO PETS A. No pets may be brought to the project site by construction personnel. 3.3 NOISE CONTROL A. The CONTRACTOR is to make every effort to keep noise to a minimum. Radios and other audio equipment may not be audible beyond the confines of the Construction Site. Violations of this provision will precipitate a total prohibition of any radios and/or other audio equipment. 3.4 SPEED LIMIT A. All vehicles are to adhere to posted speed limits. Fines will be issued for those exceeding the speed limit as posted or as required by road and weather conditions. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 45 00 - 1 SECTION 01 45 00 QUALITY CONTROL AND MATERIALS TESTING PART 1 GENERAL 1.1 MATERIALS A. All materials incorporated in the project shall be new and shall fully comply with the specifications. Unless otherwise clearly provided in the specifications, all workmanship, equipment, materials, and articles incorporated in the work covered by the contract are to be of the best available grade of their respective kinds. Whenever, in the specifications, any material, article, device, product, fixture, form, type of construction, or process indicated or specified by patent or proprietary name, by name of manufacturer, or by catalog number, such specifications shall be deemed to be used for the purpose of establishing a standard of quality and facilitating the description of the material or process desired and shall be deemed to be followed by the words "or approved equal" and CONTRACTOR may in such case, upon receiving the ENGINEER's approval, purchase and use any item, type, or process which shall be substantially equal in every respect to that indicated or specified. B. Materials and equipment may be used in the Work based upon receipt of a Supplier’s certificate of compliance. Certificate must be in possession of CONTRACTOR and reviewed by ENGINEER prior to use. C. Quality Assurance Testing by the OWNER and/or ENGINEER shall not relieve CONTRACTOR of responsibility to furnish materials and work in full compliance with Contract Documents. 1.2 MANUFACTURER’S INSTRUCTIONS A. Should instructions conflict with Contract Documents, request clarification before proceeding. B. When required in individual sections, submit manufacturer’s instructions in the quantity required for product data, delivery, handling, storage, assembly, installation, start-up, adjusting, balancing, and finishing, as appropriate. 1.3 WORKMANSHIP A. Maintain performance control and supervision over Subcontractors, Suppliers, manufacturer’s, products, services, workmanship, and site conditions, to produce work in accordance with Contract Documents. B. Comply with industry standards except when more restrictive tolerances or specified requirements indicate more rigid standards or more precise workmanship. CMWC – 400,000 Gallon Upper Tank 01 45 00 - 2 C. Provide suitable qualified personnel to produce specified quality. D. Ensure finishes match approved samples. 1.4 TOLERANCES A. Monitor fabrication and installation tolerance control of products to produce acceptable Work. Do not permit tolerances to accumulate. B. Comply with manufacturers' tolerances. When manufacturers' tolerances conflict with Contract Documents, request clarification from Engineer before proceeding. C. Adjust products to appropriate dimensions; position before securing products in place. 1.5 TESTING AND INSPECTION SERVICES A. Testing agency and testing for quality control and material testing shall be furnished by Contractor as part of the project. Results of testing shall be reported to Owner and ENGINEER on site. Reports of the testing shall be transmitted directly to the Owner and Cottonwood Mutual Water Company. B. Materials to be supplied under this contract will be tested and/or inspected either at their place of origin or at the site of the work by the testing agency. CONTRACTOR shall give ENGINEER written notification well in advance of actual readiness of materials to be tested and/or inspected at point of origin so ENGINEER may witness testing by the testing agency. Satisfactory tests and inspections at the point of origin shall not be construed as a final acceptance of the material nor shall it preclude retesting or re-inspection at the site of the work. C. CONTRACTOR shall furnish such samples of materials as are requested by the ENGINEER, without charge. No material shall be used until reports from the testing agency have been reviewed and accepted by the ENGINEER. 1.6 UNSATISFACTORY CONDITIONS A. Examine areas and conditions under which materials and products are to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in a manner acceptable to installer. 1.7 QUALITY CONTROL TESTING A. ENGINEER’s failure to detect any defective Work or materials does not prevent later rejection when such defect is discovered nor does it obligate ENGINEER for acceptance. CMWC – 400,000 Gallon Upper Tank 01 45 00 - 3 B. CONTRACTOR shall provide 24-hours minimum notice to ENGINEER for all testing required by these specifications so that ENGINEER may coordinate or be present during testing. 1.8 TESTING ACCEPTANCE AND FREQUENCY A. Minimum Quality Control Testing Frequency: As defined in Table 01 45 00-1, the CONTRACTOR shall be responsible to ensure that all testing is performed at the frequencies shown. CONTRACTOR shall uncover any work at no cost to OWNER to allow the testing agency to perform required testing at the frequency shown. B. Acceptance of Defective Work: As defined in Article 13.8 of the General Conditions. PART 2 PRODUCTS - Not Used PART 3 EXECUTION 3.1 EXAMINATION A. Verify existing site conditions and substrate surfaces are acceptable for subsequent Work. Beginning new Work means acceptance of existing conditions. B. Verify existing substrate is capable of structural support or attachment of new Work being applied or attached. C. Examine and verify specific conditions described in individual specification sections. D. Verify utility services are available, of correct characteristics, and in correct locations. 3.2 PREPARATION A. Clean substrate surfaces prior to applying next material or substance. B. Seal cracks or openings of substrate prior to applying next material or substance. C. Apply manufacturer required or recommended substrate primer, sealer, or conditioner prior to applying new material or substance in contact or bond. CMWC – 400,000 Gallon Upper Tank 01 45 00 - 4 TABLE 01 45 00-1: QUALITY CONTROL TESTING FREQUENCY SYSTEM or MATERIAL TESTS MINIMUM REQUIRED FREQUENCY SUBGRADE AND BACKFILL MATERIALS Section 31 23 23 Backfill Field Density 1 test for each 1.5 feet of backfill thickness. Laboratory 1 test for each material type which includes proctor, classification and gradation. PORTLAND CEMENT CONCRETE Cast-in-Place Concrete Slump 1 test every day of placement or 1 test for every 50 cubic yards and more frequently if batching appears inconsistent. Conduct with strength tests. Entrained air 1 test with slump test. Ambient and concrete tem- peratures 1 test with slump test. Water cement ratio. to be verified and provided with batch tickets. Compressive strength 1 set of 4 cylinders every 50 c.y. or part thereof per day. NOTES: 1 Additional tests shall be conducted when variations occur due to the contractor's operations, weather conditions, site conditions, etc. 2 Classification, moisture content, Atterberg limits and specific gravity tests shall be conducted for each compaction test if applicable. 3 Tests can substitute for same tests required under "Aggregates" (from bins or source), although gradations will be required when blending aggregates. 4 Aggregate moisture tests are to be conducted in conjunction with concrete strength tests for water/cement calculations. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 45 10 - 1 SECTION 01 45 10 TESTING AGENCY SERVICES PART 1 GENERAL 1.1 SECTION INCLUDES A. Owner shall be responsible for providing Construction Quality Control Testing of all soils, concrete, etc. as required by the various sections of these specifications. B. This section includes the following: 1. Use of independent testing agency. 2. Control testing report submittal requirements. 3. Responsibilities of testing agency. 1.2 REFERENCES A. ASTM D 3740: Standard Recommended Practice for Evaluation of Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction. B. ASTM D 4561: Standard Practice for Quality Control Systems for and Inspection and Testing Agency for Bituminous Paving Materials. C. ASTM E 329: Standard Recommended Practice for Inspection and Testing Agencies for Concrete, Steel, and Bituminous Materials as Used in Construction. 1.3 DEFINITIONS A. Independent Testing Agency: A testing agency NOT owned by CONTRACTOR, and an agency that does not have any preferential affiliation or association with CONTRACTOR, or any of CONTRACTOR’s Subcontractors and Suppliers other than entering into a contract with CONTRACTOR to perform the duties defined in these specifications. B. Professional Engineer: An engineer who complies with Utah licensing law and is acceptable to the authority having jurisdiction. 1.4 QUALITY ASSURANCE A. CONTRACTOR shall employ and pay for, all material testing services as described in Paragraph 1.1 A, through an independent testing agency which complies with ASTM D 3740, ASTM D 4561, and ASTM E 329 to test materials for contract compliance. B. Concrete C. Technician: Approved by ENGINEER or ACI certified. CMWC – 400,000 Gallon Upper Tank 01 45 10 - 2 1.5 CONTRACTOR SUBMITTALS A. Prior to start of Work, submit testing agency’s name, address, telephone number and the following: 1. Person charged with engineering managerial responsibility. 2. Professional engineer on staff to review services. 3. Level of certification of technicians. 1.6 TESTING AGENCY SUBMITTALS A. Field Test Report: Submit report no later than the end of the current day. B. Laboratory Test Report: Submit original report within 48 hours after test results are determined. C. Final Summary Report: Submit prior to final payment. D. On all reports include: 1. Project title, number and date of the report. 2. Date, time and location of test 3. Name and address of material Supplier. 4. Identification of product being tested and type of test performed. 5. Identify whether test is initial test or retest. 6. Results of testing and interpretation of results. 7. Name of technician who performed the testing. 1.7 RESPONSIBILITIES OF TESTING AGENCY A. Calibrate testing equipment at least annually with devices of an accuracy traceable to either National Bureau of Standards or acceptable values of natural physical constraints. B. Provide sufficient personnel at site and cooperate with CONTRACTOR, ENGINEER and OWNER’s Representative in performance of testing service. C. Secure samples using procedures specified in the applicable testing code. D. Perform testing of products in accordance with applicable sections of the Contract Documents. E. Immediately report any compliance or noncompliance of materials and mixes to CONTRACTOR, ENGINEER and OWNER’s Representative. CMWC – 400,000 Gallon Upper Tank 01 45 10 - 3 F. When an out-of-tolerance condition exists, perform additional inspections and testing until the specified tolerance is attained, and identify retesting on test reports. G. Re-testing or re-inspection required because of non-conformance to specified requirements shall be performed by same independent firm on instructions by Engineer. Payment for re-testing or re-inspection will be paid for by Contractor. 1.8 LIMITS ON TESTING AGENCY AUTHORITY A. Agency may not release, revoke, alter, or enlarge on requirements of Contract Documents. B. Agency may not suspend Work. C. Agency may not assume duties of Contractor. D. Agency has no authority to accept Work for OWNER. PART 2 PRODUCTS - Not Used PART 3 EXECUTION - Not Used END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 50 00-1 SECTION 01 50 00 TEMPORARY CONTROLS 1.01 SITE MAINTENANCE The Contractor shall keep the work site clean and free from rubbish and debris. Materials and equipment shall be removed from the site when they are no longer necessary. Upon completion of the work and before final acceptance, the work site shall be cleared of equipment, unused materials, and rubbish to present a clean and neat appearance. 2.01 DISPOSAL OF WASTE MATERIAL When burning is not prohibited or restricted by law, pile all combustible material within the designated or approved cleared area and dispose of by burning. Remove material from the site which is not combustible or not practicable to burn. Accomplish burning and disposal in accordance with all Federal, State and local laws relating to fire prevention, air pollution control, and other restrictions in regard to burning materials. When burning is prohibited, dispose of waste materials in accordance with the governing agency safety and health requirements. If perishable material is burned, it shall be burned under the constant care of competent watchmen at such times and in such a manner that anything designated to remain on the property, or other adjacent property will not be jeopardized. Burning shall be done in accordance with applicable laws and ordinances. 3.01 "NO BURNING" PERIODS During periods when burning operations are prohibited by local, State or Federal authorities, haul combustible material and debris from the site. If approved, pile where it will not interfere with the work, and burn when prohibition against burning is removed. 4.01 AIR POLLUTION CONTROL The Contractor shall not discharge smoke, dust, and other contaminants into the atmosphere that violate the regulations of any legally constituted authority. He shall also abate dust nuisance by cleaning, sweeping, and sprinkling with water, or other means as necessary. The use of water, in amounts which result in mud on public streets, is not acceptable as a substitute for sweeping or other methods. 5.01 NOISE CONTROL The Contractor shall conform to all local, state and federal noise control ordinances CMWC – 400,000 Gallon Upper Tank 01 50 00-2 6.01 DUST ABATEMENT The Contractor shall furnish all labor, equipment, and means required and shall carry out effective measures wherever, whenever and as often as necessary to prevent his operation from producing dust in amounts damaging to property, cultivated vegetation, or domestic animals, or causing a nuisance to persons living in or occupying buildings in the vicinity. The Contractor shall conform to all local, state and federal dust abatement ordinances. The Contractor shall be responsible for any damage resulting from any dust originating from his operations. The dust abatement measures shall be continued until the Contractor is relieved of further responsibility by the Engineer. No separate payment will be allowed for dust abatement measures and all costs thereof shall be included in the Contractor's bid price. 7.01 RUBBISH CONTROL During the progress of the work, the Contractor shall keep the site of the work and other areas used by him in a neat and clean condition, and free from any accumulation of rubbish. The Contractor shall dispose of all rubbish and waste materials of any nature occurring at the work site, and shall establish regular intervals of collection and disposal of such materials and waste. He shall also keep his haul roads free from dirt, rubbish, and unnecessary obstructions resulting from his operations. Equipment and material storage shall be confined to areas approved by the Engineer. Disposal of all rubbish and surplus materials shall be off the site of construction, at the Contractor's expense, all in accordance with local codes and ordinances governing locations and methods of disposal, and in conformance with all applicable safety laws, and to the particular requirements of Subpart H, Section 1926.252 of the OSHA Safety and Health Standards for Construction. 8.01 SANITATION A. Toilet Facilities. Fixed or portable chemical toilets shall be provided wherever needed for the use of employees. Toilets at construction job sites shall conform to the requirements of Subpart D, Section 1926.51 of the OSHA Standards for Construction. B. Sanitary and Other Organic Wastes. The Contractor shall establish a regular daily collection of all sanitary and organic wastes. All wastes and refuse from sanitary facilities provided by the Contractor or organic material wastes form any other source related to the Contractor's operations shall be disposed of away from the site in a manner satisfactory to the Engineer and in accordance with all laws and regulations pertaining thereto. Disposal of all such wastes shall be at the Contractor's expense. CMWC – 400,000 Gallon Upper Tank 01 50 00-3 9.01 CHEMICALS All chemicals used during project construction or furnished for project operation, whether defoliant, soil sterilant, herbicide, pesticide, disinfectant, reactant or of other classification, shall show approval of either the U.S. Environmental Protection Agency or the U.S. Department of Agriculture. Use of all such chemicals and disposal of residues shall be strict accordance with the printed instructions of the manufacturer. 10.01 EROSION CONTROL Plan and execute construction and earthwork by methods to control surface drainage from cuts and fills, and from borrow and waste disposal areas to prevent erosion and sedimentation. Periodically inspect earthwork to detect any evidence of the start of erosion, apply corrective measures as required to control erosion. Furnish material and construct temporary erosion control including berms, dikes, sediment basins, slope drains, check dams, sediment barriers, fiber mats, mulches, etc. The Engineer may direct the Contractor to install additional erosion controls if, in the opinion of the Engineer, the risk of potential erosion is not adequately addressed. Coordinate temporary control measures with permanent erosion control requirements. A. Do not start grading work until installation of all temporary erosion control measures is complete. B. Complete installation of all erosion control in a timely manner. C. Do not pollute streams, canals, lakes, and other water courses. Use the erosion control measures indicated. D. Follow the more restrictive requirements when conflicts occur between erosion control specifications and federal, state, or local agencies laws, rules, or regulations. 11.01 FAILURE TO EXECUTE Failure to execute any of the temporary controls shall be sufficient cause for the Owner to stop forward progression of the work and hold progress payments until acceptable limits and standards are met. 12.01 FIRE SUPPRESSION PLAN The Contractor shall be required to maintain adequate equipment, manpower and water sources available to extinguish any fires which may be started, directly or indirectly, through activities of the Contractor. CMWC – 400,000 Gallon Upper Tank 01 50 00-4 13.01 SMOKING Due to a substantial risk of wildfires, smoking shall be restricted to occur only inside of enclosed equipment or other designated area. During times of higher fire danger, the local authority may place additional restrictions on smoking in the area. 14.01 COSTS All costs in connection with the work specified herein will be considered to be incidental to the project. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 50 30-1 SECTION 01 50 30 PROTECTION OF EXISTING FACILITIES PART 1 GENERAL DESCRIPTION Any existing facilities, disturbed which are located in or adjacent to the line of work such as curbs, gutters, drive approaches, sidewalks, driveways, fences, underground pipes, conduits, or utilities, shall be cleaned up and restored in kind by CONTRACTOR and in accordance with the specifications contained herein governing the various types of services involved. CONTRACTOR shall not perform work that would affect any oil, gas, sewer, or water pipeline; any telephone, fiber optic, television cable, or electric transmission line; any fence; or any structure, until authorization has been obtained from OWNER of the improvement. Provide OWNER of the improvement due notice of the beginning of the work, and remove, shore, support, or otherwise protect such improvement or replace the same. RESTORATION OF FENCES Where it is necessary to remove any fence to facilitate CONTRACTOR's operation, CONTRACTOR shall obtain prior agreement with OWNER for removal of the fence, and shall be responsible for any damage due to negligence of CONTRACTOR. As soon as practical, the fence shall be restored substantially to the same or improved condition as it was prior to the commencement of the work. Where livestock is present CONTRACTOR shall provide temporary fencing to keep livestock away from the construction area. UNDERGROUND SERVICE ALERT Prior to any excavation in the vicinity of any existing underground facilities, including all water, sewer, storm drain, gas, petroleum products, or other pipelines; all buried electric power, communications, or television cables; all traffic signal and street lighting facilities; and all roadway and state highway rights-of-way, CONTRACTOR shall notify the regional notification center (Blue Stakes of Utah) at 1-800-662-4111 or 811 or submit an on-line request at www.bluestakes.org at least 2 days, but no more than 7 days, prior to such excavation. INTERFERING STRUCTURES AND UTILITIES CONTRACTOR shall exercise all possible caution to prevent damage to existing structures and utilities, whether above ground or underground. Prior to submittal of Shop Drawings, and prior to commencing any excavations for new pipelines or structures, conduct investigations, including exploratory excavations and borings, to determine the location and type of underground utilities and services connections that could result in damage to such utilities. It shall be the responsibility of CONTRACTOR to locate and CMWC – 400,000 Gallon Upper Tank 01 50 30-2 expose all existing underground and overhead structures and utilities in such a manner as to prevent damage to same. CONTRACTOR shall notify all utility offices concerned at least 48 hours in advance of construction operations in which a utility agency's facilities may be involved. This shall include, but not be limited to, irrigation water, culinary water, telephone, television cables, fiber optic communication, gas, and electric. CONTRACTOR shall be responsible for any and all changes to, reconnections to public utility facilities encountered or interrupted during prosecution of the work, and all costs relating hereto shall be at CONTRACTOR's expense. CONTRACTOR shall contract with and pay Public Utility Agencies for work required in connection with all utility interferences and handle all necessary notifications, scheduling, coordination, and details. The cost of public utility interferences shall be included in CONTRACTOR's lump sum or unit price bid covering the major contract facility to which interference or changes are attributable. All exploratory excavations shall be performed as soon as practicable after Notice to Proceed and, in any event, a sufficient time in advance of the construction to avoid possible delays to CONTRACTOR’s progress. Prepare a report identifying each utility by its size, elevation, station and material of construction. Immediately notify ENGINEER and the utility in writing as to any utility discovered in a different position than as marked in the field or shown on the Drawings, or any utility which is not marked in the field or not shown on the Drawings. The number of exploratory excavations required shall be that number which is sufficient to determine the alignment and grade of the utility. Conform to local agency requirements for backfill and pavement repair subsequent to performing exploratory excavations. Any damages to private property, either inside or outside the limits of the easements provided by OWNER, shall be the responsibility of CONTRACTOR. Any roads, structures, or utilities damaged by the work shall be repaired or replaced in a condition equal to or better than the condition prior to the damage. Such repair or replacement shall be accomplished at CONTRACTOR's expense without additional compensation from OWNER. CONTRACTOR shall remove and replace small miscellaneous structures such as fences and culverts which are damaged by the construction activity at his own expense without additional compensation from OWNER. CONTRACTOR shall replace these structures in a condition as good as or better than their original condition. At points where CONTRACTOR's operations are adjacent to or across properties of railway, telephone, irrigation canal, power, gas, water, or adjacent to other property (damage to which might result in considerable expense, loss, and inconvenience), no work shall be started until all arrangements necessary for the protection thereof have been made. The locations of the major existing culinary water lines, gas pipes, underground electric, cable television, and telephone lines that are shown on the plans were taken from city maps, and maps supplied by the utility owner. No excavations were made to verify the CMWC – 400,000 Gallon Upper Tank 01 50 30-3 locations shown for underground utilities, unless specifically stated on the Drawings. It should be expected that some location discrepancies will occur. Neither OWNER nor its officers or agents shall be responsible for damages to CONTRACTOR as a result of the locations of the utilities being other than those shown on the plans or for the existence of utilities not shown on the plans. CONTRACTOR shall be solely and directly responsible to OWNERs and operators of such properties for any damage, injury, expense, loss or inconvenience, delay, suits, actions, or claims of any character brought because of an injury or damage which may result from the carrying out of the work to be done under the contract. All utilities including all water, sewer, storm drain, gas, petroleum products, or other pipelines; all buried electric power, communications, or television cables; all traffic signal and street lighting facilities encountered along the line of the work shall remain continuously in service during all operations under the Contract, unless other arrangements satisfactory to ENGINEER are made with OWNER of said utility. In the event of interruption to either domestic or irrigation water, or to other utility services as a result of accidental breakage, or as a result of being exposed or unsupported, CONTRACTOR shall promptly notify the proper authority. CONTRACTOR shall cooperate with the authority in restoration of service as soon as possible, and shall not allow interruption of any water or utility service outside working hours unless prior approval is received. In case it shall be necessary to move the property of any public utility or franchise holder, such utility company or franchise holder will, upon request of CONTRACTOR, be notified by OWNER to move such property within a specified reasonable time. When utility lines that are to be moved are encountered within the area of operations, CONTRACTOR shall notify ENGINEER a sufficient time in advance for the necessary measures to be taken to prevent interruption of service. Where the proper completion of the WORK requires the temporary or permanent removal and/or relocation of an existing Utility or other improvement which is indicated, CONTRACTOR shall remove and, without unnecessary delay, temporarily replace or relocate such Utility or improvement in a manner satisfactory to ENGINEER and OWNER of the facility. In all cases of such temporary removal or relocation, restoration to the former location shall be accomplished by CONTRACTOR in a manner that will restore or replace the Utility or improvement as nearly as possible to its former locations and to as good or better condition than found prior to removal. RIGHTS-OF-WAY CONTRACTOR shall be required to confine construction operations within the dedicated rights-of-way for public thorough fares, or within areas for which construction easements have been obtained, unless they have made special arrangements with the affected property owners in advance. CONTRACTOR shall be required to protect stored materials, cultivated trees and crops, and other items adjacent to the proposed construction site. CMWC – 400,000 Gallon Upper Tank 01 50 30-4 The construction easement widths and access to private properties are as shown on the Drawings and as described in the easement documents; however CONTRACTOR is to minimize impacts to surface improvements within the right-of-way and restore all disturbances. Property owners affected by the construction shall be notified by CONTRACTOR at least 48 hours in advance of the time the construction begins. During all construction operations, CONTRACTOR shall construct and maintain such facilities as may be required to provide access by all property owners to their property. No person shall be cut off from access to his property for a period exceeding 8 hours unless CONTRACTOR has made special arrangements with the affected persons. CONTRACTOR shall, daily or more frequently if necessary, grade all disturbed areas to be smooth for motor vehicle traffic. PROTECTION OF SURVEY, STREET OR ROADWAY MARKERS CONTRACTOR shall not destroy, remove, or otherwise disturb any existing survey markers or other existing street or roadway markers without proper authorization. No pavement breaking or excavation shall be started until all survey or other permanent marker points that will be disturbed by the construction operations have been properly referenced. Survey markers or points disturbed by CONTRACTOR shall be accurately restored after street or roadway resurfacing has been completed. TREES OR SHRUBS WITHIN PROJECT LIMITS Except where trees or shrubs are indicated to be removed, CONTRACTOR shall exercise all necessary precautions so as not to damage or destroy any trees or shrubs, including those lying within street rights-of-way and project limits, and shall not trim or remove any trees unless such trees have been approved for trimming or removal by the jurisdictional agency or OWNER. Existing trees and shrubs which are damaged during construction shall be trimmed or replaced by CONTRACTOR or a certified tree company under permit from the jurisdictional agency and/or OWNER. RESTORATION OF PAVEMENT Pavement work shall meet the specifications for installation as noted in the Project Drawings or APWA’s Standard Specifications and Details. All paved areas damaged during construction shall be replaced with similar materials of equal thickness to match the existing adjacent undisturbed areas, except where specific resurfacing requirements have been called for in the Contract or in the requirements of the agency issuing the permit. The pavement restoration requirement to match existing sections shall apply to all components of existing sections, including sub-base, base, and pavement. Pavements which are subject to partial removal shall be neatly sawcut in straight lines. Wherever required by the local agency having jurisdiction, CONTRACTOR shall place temporary surfacing promptly after backfilling and shall maintain such surfacing for the CMWC – 400,000 Gallon Upper Tank 01 50 30-5 period of time fixed by said authorities before proceeding with the final restoration of improvements. LANDSCAPING All landscaping on private property that is damaged or destroyed during performance of the work shall be repaired or replaced back to the original condition or better to the satisfaction of the land owner and OWNER. OTHER SURFACE IMPROVEMENTS All other surface improvements not explicitly mentioned herein that are damaged or destroyed during performance of the work shall be repaired or replaced back to original condition or better. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 52 00-1 SECTION 01 52 00 CONSTRUCTION FACILITIES 1.01 GENERAL The Contractor shall set up construction facilities in a neat and orderly manner. The Contractor shall be responsible for providing the site to establish the temporary construction facilities, where not specifically provided for in the Contract. 2.01 SECURITY The Contractor shall at all times provide such permanent and temporary fencing as may be necessary to restrict unauthorized entry to the site. Contractor shall abide by the Owner's security requirements. 3.01 CONTRACTOR'S EQUIPMENT A. General. It shall be the Contractor's responsibility to provide equipment that is adequate for the performance of the work under this Contract within the time specified. All equipment shall be kept in satisfactory operating condition, shall be capable of safely and efficiently performing the required work, and shall be subject to inspection and approval by the Engineer at any time within the duration of the Contract. All work hereunder shall conform to the applicable requirements of the OSHA Standards for Construction. B. Separate Contracts. Whenever portions of the work hereunder are let under separate contracts, all of the provisions of this Section shall apply to each such prime contractor, including the requirements for separate field offices and communications facilities. C. Construction Lighting. All work conducted at night or under conditions of deficient daylight shall be suitably lighted to ensure proper work and to afford adequate facilities for inspection and safe working conditions. 4.01 UTILITIES A. Water Supply. All drinking water on the site during construction shall be furnished by the Contractor. B. Water Connections. The Contractor shall not make connection to, or draw water from, any fire hydrant or pipeline without first obtaining permission of the authority having jurisdiction over the use of said fire hydrant or pipeline and from the agency owning the affected water system. For each such connection made, the Contractor shall first attach to the fire hydrant or pipeline a valve and a meter, if required by said authority, of a size and type acceptable to said authority and agency. CMWC – 400,000 Gallon Upper Tank 01 52 00-2 C. Removal of Water Connections. Before final acceptance of the work on the project, all temporary connections and piping installed by the Contractor shall be entirely removed, and all affected improvements shall be restored to their original condition, or better, to the satisfaction of the Engineer and to the agency owning the affected utility. D. Power. The Contractor shall provide, at his own expense, all necessary power required for his operations under the Contract, and shall provide and maintain all temporary power lines required to perform the work in a safe and satisfactory manner. Temporary electric power installation shall meet the construction safety requirements of OSHA, State and other governing agencies. E. Approval of Electrical Connections. All temporary connections for electricity shall be subject to approval of the Engineer and the power company representative, and shall be removed in like manner at the Contractor's expense prior to final acceptance of the work. F. Communication. Contractor shall provide his own telephone or communication system at the site as required to complete the project. 5.01 SAFETY A. General. Appropriate first aid facilities and supplies shall be kept and maintained by the Contractor at the site of the work. All persons within the construction area shall be required to wear protective helmets, protective eye wear as required, and steel toed safety shoes. In addition, all employees of the Contractor and his subcontractors shall be provided with, and required to use, personal protective and life saving equipment as set forth in Subpart E of the OSHA Safety and Health Standards for Construction (29 CFR 1926). B. Public Safety. During the performance of the work the Contractor shall erect and maintain temporary fences, bridges, railings, and barriers and shall take all other necessary precautions and place proper guards for the prevention of accidents and he shall erect and maintain suitable and sufficient lights and other signals. 6.01 PROJECT SIGN No project sign is required. 7.01 SANITARY FACILITIES The Contractor shall provide and maintain sanitary facilities (toilet and wash-up facilities) for his employees and his subcontractors' employees that will comply with the regulations of the local and State Departments of Health and as directed by the Engineer. CMWC – 400,000 Gallon Upper Tank 01 52 00-3 8.01 STORAGE OF MATERIALS Materials shall be so stored as to insure the preservation of their quality and fitness for the work. When considered necessary by the Engineer, they shall be placed on wooden platforms or other hard, clean surfaces, and not on the ground. Delicate instruments and materials subject to vandalism shall be placed under locked cover and, if necessary, provided with temperature control as recommended by the manufacturer. Stored materials shall be located so as to facilitate prompt inspection. Private property shall not be used for storage purposes without the written permission of the Owner or lessee. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 71 13-1 SECTION 01 71 13 MOBILIZATION PART 1 GENERAL A. This specification covers the following: 1. Organization and mobilization of Contractor's forces and equipment; and 2. Transporting various tools, materials, and equipment to the site. PART 2 DESCRIPTION A. Mobilization shall include mobilization of all construction equipment, materials, supplies, appurtenances, and the like, manned and ready for commencing and prosecuting the work; and the subsequent demobilization and removal from the site of said equipment, appurtenances and the like upon completion of the work. B. Mobilization shall also include assembly and delivery, to the project site, of equipment, materials, and supplies necessary for the prosecution of work but which are not intended to be incorporated in the work; the clearing of and preparation of the Contractor's work area; the complete assembly, in working order, of equipment necessary to perform the required work; personnel services preparatory to commencing actual work; and all other preparatory work required to permit commencement of the actual work on the construction items for which payment is provided for under the contract. C. This shall include CONTRACTOR's preliminary arrangement for starting and stopping construction operations, work schedules, and transportation of equipment and personnel to and from the project. D. The cost of all clean-up work as specified and not covered under other items shall be included in the Bid. Values shall be included in the Bid Schedule, lump-sum price, for "Mobilization". E. The cost of water, power, etc. required by CONTRACTOR in performing the work specified in the contract shall be included in the Bid. Values shall be included in the Bid Schedule, lump-sum price, for "Mobilization". F. The cost of the performance bond, payment bond, and any required permits, insurance and/or other miscellaneous cost associated with this project shall be included with the Bid. Values shall be included in the Bid Schedule, lump-sum price, for "Mobilization”. CMWC – 400,000 Gallon Upper Tank 01 71 13-2 G. PRE-CONSTRUCTION VIDEO RECORDS 1. The Contractor is required to produce a preconstruction video tape recording of areas where work is to be performed. The video tape record shall be of professional quality and the coverage shall be such, as to allow accurate determination of location, size and conditions, etc. of existing features and improvements within the rights-of-way. The Contractor shall provide the Owner with a copy of the rights-of-way video tape before construction begins. END OF SECTION CMWC – 400,000 Gallon Upper Tank 01 71 23 - 1 SECTION 01 71 23 CONSTRUCTION SURVEYING PART 1 GENERAL 1.1 SECTION INCLUDES A. Construction surveying requirements. 1.2 SUBMITTALS A. Before contract closeout submit: 1. Documentation to verify accuracy of survey work. 2. When required by Laws and Regulations, submit a certificate signed by a licensed professional certifying that elevations and locations of improvements conform with the Contract Documents. 3. All survey data, survey information showing dimensions, location angles and elevations of construction on contract Record Documents. 1.3 SURVEY REFERENCE POINTS A. Known basic horizontal and vertical control points for the Project are indicated. B. Locate and protect survey control points before starting site work, and preserve all permanent reference points during construction. C. Notify ENGINEER in writing within 24 hours of any survey work changes or clarifications required for Project. Secure written authorization before making any changes or relocations. D. Report in writing when any reference point is lost or destroyed, or requires relocation because of necessary changes in grades or locations. E. Replace construction stakes damaged or destroyed by CONTRACTOR at no additional cost to OWNER. 1.4 OWNER SUPPLIED SURVEYING A. OWNER will provide a one-time location and layout by instrumentation and similar appropriate means to include but not limited to the following: 1. Vertical Benchmark datum 2. Location of center of tank CMWC – 400,000 Gallon Upper Tank 01 71 23 - 2 B. Any CONTRACTOR requested staking in addition to the initial one-time staking provided by OWNER’s surveyor will be considered as re-staking. CONTRACTOR shall pay all re-staking costs to the surveyor, at no additional cost to OWNER. 1.5 CONTRACTOR SUPPLIED SURVEYING A. CONTRACTOR shall provide all additional surveying and construction layout as required for completion of the Work. PART 2 PRODUCTS - Not Used PART 3 EXECUTION - Not Used 3.1 PROJECT SURVEY REQUIREMENTS A. Any work performed by CONTRACTOR without OWNER-provided survey information shall be performed at CONTRACTOR’s own risk END OF SECTION CMWC – 400,000 Gallon Upper Tank 03 10 00-1 SECTION 03 10 00 CONCRETE FORMWORK PART 1 - GENERAL 1.01 DESCRIPTION A. Work Included - Provide formwork in accordance with the provisions of this Section for all cast-in-place concrete shown on the Drawings or required by other Sections of these Specifications. 1.02 QUALITY ASSURANCE A. Design of formwork - Is the Contractor's responsibility. B. Standards - Comply with all pertinent provisions of the ACI 347. C. Qualifications of workmen: Provide at least one person who shall be present at all times during execution of this portion of the work and who shall be thoroughly familiar with the type of materials being installed, the referenced standards, and the requirements of this work, and who shall direct all work performed under this Section. 1.03 SUBMITTALS A. Manufacturers' data - Within 30 calendar days after award of the Contract, submit manufacturers' data and installation instructions for proprietary materials, including form coatings, ties and accessories, and manufactured form systems if used. PART 2 - PRODUCTS 2.01 FORM MATERIALS A. Forms 1. Construct formwork for exposed (painted or unpainted) concrete surfaces with smooth faced undamaged plywood or other panel type materials acceptable to the Engineer, to provide continuous, straight, smooth as-cast surfaces. Furnish in largest practicable sizes to minimize number of joints for "non-architectural" concrete finish. 2. Construct formwork for concrete concealed from view or covered with cement plaster with rough sawn boards of sound grade, as approved by the Engineer, to provide a mechanical bond for subsequent application of plaster. CMWC – 400,000 Gallon Upper Tank 03 10 00-2 3. Provide for material with sufficient thickness to withstand pressure of newly placed concrete without excessive and objectionable bow or deflection. 4. Concrete Column Forms: Sonoco products company regular "Sonotube" fiber forms or equal. Provide in one piece per column. B. Form Ties 1. Provide factory-fabricated, adjustable-length, removable or snapoff metal form ties, designed to prevent form deflection and to prevent spalling concrete surfaces upon removal. 2. Provide ties so that portion remaining within concrete after removal of exterior parts is at least 3.8 cm (1.5") from the outer concrete surface. Provide form ties which will not leave a hole larger than 2.5 cm (1") diameter in the concrete surface. C. Form Coatings - Provide commercial formulation form-coating compounds that will not bond with, stain, nor adversely affect concrete surfaces requiring bond or adhesion, nor impede the wetting of surfaces to be cured with water or curing compounds. 2.02 DESIGN OF FORMWORK A. General 1. Design, erect, support, brace, and maintain formwork so that it will safely support vertical and lateral loads that might be applied, until such loads can be supported by the concrete structure. 2. Carry vertical and lateral loads to ground by formwork system and in-place construction that has attained adequate strength for the purpose. 3. Construct formwork so that concrete members and structures are of correct size, shape, alignment, elevation, and position. 4. Design forms and falsework to include assumed values of live load, dead load, weight of moving equipment operated on formwork, concrete mix, height of concrete drop, vibrator frequency, ambient temperature, foundation pressures, stresses, lateral stability, and other factors pertinent to safety of structure during construction. 5. Provide shore and struts with positive means of adjustment capable of taking up formwork settlement during concrete placing operations, using wedges or jacks or a combination thereof. CMWC – 400,000 Gallon Upper Tank 03 10 00-3 6. Provide trussed supports when adequate foundations for shores and struts cannot be secured. 7. Support form facing materials by structural members spaced sufficiently close to prevent objectionable deflection. 8. Fit forms placed in successive units for continuous surfaces to accurate alignment, free from irregularities, and within allowable tolerances. 9. Provide camber in formwork as required for anticipated deflections due to weight and pressures of fresh concrete and construction loads. 10. Provide formwork sufficiently tight to prevent leakage of cement paste during concrete placement. Solidly butt joints and provide backup material at joints as required to prevent leakage and fins. B. Earth Forms Side forms of footings may be omitted and concrete placed directly against excavation only when requested by the Contractor and accepted by the Engineer. When omission of forms is accepted, provide additional concrete 2.5 cm (1") on each side of the minimum design profiles and dimensions shown. PART 3 - EXECUTION 3.01 SURFACE CONDITIONS Examine the substrate and conditions under which work of this Section is to be performed, and correct unsatisfactory conditions which would prevent proper and timely completion of the work. Do not proceed until unsatisfactory conditions have been corrected. 3.02 FORM CONSTRUCTION A. General 1. Construct forms complying with ACI 347, to the exact sizes, shapes, lines, and dimensions shown, and as required to obtain accurate alignment, location, grades, level, and plumb work in finish structures. 2. Provide for openings, offsets, sinkages, keyways, recesses, moldings, reglets, chamfers, blocking, screeds, bullheads, anchorages, inserts, and other features required. Use selected materials to obtain required finishes. 3. Forms for openings, and construction which accommodates installation by other trades whose materials and products must be fabricated before the CMWC – 400,000 Gallon Upper Tank 03 10 00-4 opportunity exists to verify the measurements of adjacent construction which affects such installations, shall be accurately sized and located as dimensioned on the Drawings. In the event that deviation from the Drawing dimensions results in problems in the field, the Contractor shall be responsible for resolution of the conditions as approved by the Engineer, without additional expense to the Owner. B. Fabrication 1. Fabricate forms for easy removal without hammering or prying against concrete surfaces. Provide crush plates or wrecking plates where stripping may damage cast concrete surfaces. Provide top forms for inclined surfaces where the slope is too steep to place concrete with bottom forms only. Kerf wood inserts for forming keyways- reglets, recesses, and the like, to prevent swelling and assure ease of removal. 2. Provide temporary openings where interior area of formwork is inaccessible for cleanout, for inspection before concrete placement, and for placement of concrete. Brace temporary closures and set tightly to temporary openings on forms in as inconspicuous locations as possible, consistent with design requirements. Form intersecting planes to provide true, clean cut corners. C. Falsework 1. Erect falsework and support, brace and maintain it to safely support vertical, lateral, and asymmetrical loads applied until such loads can be supported by in-place construction. Construct falsework so that adjustments can be made for take-up and settlement. 2. Provide wedges, jacks, or camber strips to facilitate vertical adjustments. Carefully inspect falsework and formwork during and after concrete placement operations to determine abnormal deflection or signs of failure; make necessary adjustments to produce Work of required dimensions. D. Forms for Exposed Concrete 1. Drill forms to suite ties used and to prevent leakage of concrete mortar around tie holes. Do not splinter forms by driving ties through improperly prepared holes. 2. Provide sharp, clean corners at intersecting planes, without visible edges or offsets. Back joints with extra studs or girts to maintain true, square intersections. CMWC – 400,000 Gallon Upper Tank 03 10 00-5 3. Use extra studs, walers, and bracing to prevent objectionable bowing of forms between studs and to avoid bowed appearance in concrete. Do not use narrow strips of form material which will produce bow. 4. Assemble forms so they may be readily removed without damage to exposed concrete surfaces. E. Corner Treatment - Unless shown otherwise, form chamfers with 2 cm x 2 cm (3/4" x 3/4") strips, accurately formed and surfaced to produce uniformly straight lines and tight edge joints on exposed concrete. Extend terminal edges to required limit and miter chamfer strips at changes in direction. F. Control Joints - Locate as indicated G. Provision for Other Trades - Provide openings in concrete formwork to accommodate work of other trades. Verify size and location of openings, recesses and chases with the trade requiring such items. Accurately place and securely support items to be built into forms. H. Cleaning and Tightening - Thoroughly clean forms and adjacent surfaces to receive concrete. Remove chips, wood, sawdust, dirt, and other debris just before concrete is placed. Retighten forms immediately after concrete placement as required to eliminate mortar leaks. 3.03 FORMS COATINGS Coat form contact surfaces with form-coating compound before reinforcement is placed. Do not allow excess form coating material to accumulate in the forms or to come into contact with surfaces which will be bonded to fresh concrete. Apply in compliance with manufacturer's instructions. 3.04 INSTALLATION OF EMBEDDED ITEMS A. General - Set and build into the work anchorage devices and other embedded items required for other work that is attached to, or supported by, cast-in-place concrete. Use setting drawings, diagrams, instructions and directions provided by suppliers of the items to be attached thereto. B. Edge Forms and Screens Strips for Slabs - Set edge forms or bulkheads and intermediate screed strips for slabs to obtain required elevations and contours in the finished slab surface. Provide and secure units to support types of screens required. CMWC – 400,000 Gallon Upper Tank 03 10 00-6 3.05 SHORES AND SUPPORTS Comply with ACI 347 for shoring and reshoring in multistory construction, and as herein specified. Submit a shore removal and reshoring schedule and drawings for the Engineer's review before proceeding with this work. Do not proceed until schedule and drawings have been reviewed. 3.06 REMOVAL OF FORMS A. Formwork not supporting concrete, such as sides of beams, walls, columns, and similar parts of the work, may be removed after cumulatively curing at not less than 100C (500F) for 24 hours after placing concrete, provided concrete is sufficiently hard to not be damaged by form removal operation, and provided that curing and protection operations are maintained. B. Formwork supporting weight of concrete, such as beams soffits, joists slabs and other structural elements should be removed according to the following table unless the concrete attains a minimum strength specified by the Engineer. Structural live load less than structural dead load Structural live load more than structural dead load Arch centers 14 days 7 days Joist, beam, or girder soffits Under 10 ft. clear span between structural supports 10 to 20 ft. clear span between structural supports Over 20 ft. clear span between structural supports 7 days 14 days 21 days 4 days 7 days 14 days Slabs Under 10 ft. clear span between structural supports 10 to 20 ft. clear span between structural supports Over 20 ft. clear span between structural supports 4 days 7 days 10 days 3 days 4 days 7 days C. Form Facing Material - may be removed four days after placement, only if shores and other vertical supports have been arranged to permit removal of form facing material without loosening or disturbing shores and supports. CMWC – 400,000 Gallon Upper Tank 03 10 00-7 3.07 RE-USE OF FORMS Clean and repair surfaces of forms to be re-used in the work. Split, frayed, delaminated or otherwise damaged form facing material will not be acceptable. Apply new form coating compound material to concrete contact surfaces as specified for new formwork. When forms are reused for successive concrete placement, thoroughly clean surfaces, remove fins and laitance, and tighten forms to close all joints. Align and secure joints to avoid offsets. END OF SECTION 03 10 00 CMWC – 400,000 Gallon Upper Tank 03 20 00-1 SECTION 03 20 00 CONCRETE REINFORCEMENT PART 1 - GENERAL 1.01 SCOPE This specification section covers the requirements for furnishing, detailing, fabricating, and placing reinforcing steel for cast-in-place concrete construction. 1.02 SUBMITTALS A. Fully detailed shop drawings, including bending schedules and bending diagrams, shall be submitted to the Engineer for review. Shop drawings shall show fabricating and placing details and size and location of all reinforcing steel. Shop drawings shall be prepared in accordance with the applicable requirements and guidelines of ACI 315. B. Shop drawings shall be of such detail and completeness that all fabrication and placement at the site can be accomplished. Shop drawings shall include number of pieces, sizes, and markings of reinforcing steel, laps and splices, supporting devices and accessories, and any other information required for fabrication and placement. C. Contract Drawings for anchor bolt schedules and locations, anchors, hangers, inserts, conduits, sleeves, and any other items to be cast in concrete shall be checked for possible interference with reinforcing steel. Required clearances shall be indicated on shop drawings. D. Refer to Section 01 33 00 for submittal requirements. 1.03 CERTIFICATION Certified copies of mill tests on each heat or melt of steel stating the grade and physical and chemical properties of the reinforcing steel, and conformance with ASTM Specifications, shall be available to the Engineer at the time of inspection or sampling. 1.04 PRODUCT HANDLING A. Each bundle of steel reinforcement shall be tagged at the mill with a mill tag showing the name of the mill, melt or heat number, and type or grade of steel. B. Steel reinforcement shall be delivered to the jobsite, stored, and covered in a manner which will ensure that no damage shall occur to it from moisture, dirt, grease, or any other cause which might impair bond with concrete. CMWC – 400,000 Gallon Upper Tank 03 20 00-2 C. Steel reinforcement shall be stored off the ground and shall be kept in a clean condition. Bars shall not be bent or straightened in a manner that will injure the material. Bars for the various contract items shall be stockpiled separately and shall not be used interchangeably. D. A sufficient supply of approved steel reinforcement shall be stored at the site at all times to ensure that there will be no delay of the work. E. Identification of steel reinforcement shall be maintained after bundles are broken. PART 2 - PRODUCTS 2.01 MATERIALS A. Reinforcing Bars: Reinforcing bars shall be new, deformed steel bars and shall conform to the requirements of ASTM A615, Grade 60. Only Grade 60 reinforcing bars will be permitted on the jobsite. B. Welded Wire Fabric: Welded wire fabric shall be new, rectangular mesh, welded, deformed steel wire fabric conforming to ASTM A185. Gauge or diameter of wire and center-to-center spacings of wire shall be as shown on the Drawings. C. Accessories: Reinforcement accessories, consisting of spacers, chairs, ties, and similar items required for spacing, assembling, and supporting reinforcement in place, shall conform with the applicable requirements of the reference standards hereinbefore specified. 1. For footings or other concrete on grade, use supports with sand or precast concrete bases or plates or horizontal runners where wetted base materials will not support chair legs. 2. For exposed-to-view concrete surfaces, where legs of supports are in contact with forms, provide supports with legs which are hot-dip galvanized, plastic protected, or stainless steel protected. D. Tie Wire: Tie wire for reinforcement shall be No. 16 gauge or heavier, black, mild or commercial grade steel wire. PART 3 - EXECUTION 3.01 CUTTING, BENDING AND SPLICING A. General: Fabrication of steel shall be in accordance with the Drawings and reviewed shop drawings. Where specific details are not indicated, comply with the applicable requirements of the reference standards hereinbefore specified. CMWC – 400,000 Gallon Upper Tank 03 20 00-3 B. Cutting and Bending: Cutting and bending shall be performed at a central location, equipped and suitable for the purpose. Bars shall be accurately cut and bent as indicated on the Drawings. Bars shall be bent cold. Heating of bars for bending or straightening will not be permitted. Bars shall not be bent or straightened in any manner which will injure the material. All bars shall be labeled in accordance with bending diagrams and schedules, and like pieces secured in bundles if appropriate. C. Splicing: Splicing shall be lap splices conforming to ACI 318 unless otherwise shown on the Drawings. When splice information is missing, utilize Class "B" type per AC1 318-95. Reinforcing bars shall not be welded. D. Supplemental drawings will show locations of required splices and areas where splicing will not be permitted. The Contractor will be permitted to splice reinforcing steel at other locations for his convenience subject to the approval of the Engineer. 3.02 PLACING A. All reinforcing steel shall be placed accurately in the positions shown on the Drawings and held firmly during the placing and setting of concrete. When placed in the work, reinforcing shall be free from dirt, grease, paint or other foreign substances. The coating of epoxy-coated steel shall be unbroken with all damaged areas repaired as specified in ASTM D3963. Uncoated steel shall be free from loose mill scale, and heavy flaky rust that can be removed by firm rubbing with burlap or equivalent treatment. After being placed, the reinforcing shall be maintained clean until completely embedded in the concrete. Care shall be exercised to prevent any disturbance of the reinforcing in concrete that has already been placed. B. Welded wire fabric shipped in rolls shall be straightened into flat sheets before being placed. C. The CRSI-WCRSI "Recommended Practice for Placing Reinforcing Bars" shall be used as a guide for placing, supporting, and tying the reinforcing steel. D. Reinforcing shall be supported in position by means of concrete, metal or plastic chairs, metal hangers, metal spacers, or other satisfactory metal supports. Concrete blocks used for support purposes shall have a strength level and quality comparable to the concrete in which they are used. The use of broken stone, metal pipe, and wooden blocks will not be permitted. Concrete blocks shall be used for supporting reinforcing on subgrade. Stainless steel, concrete, plastic coated or plastic supports, as approved, shall be used for supporting reinforcing against surfaces which will be exposed to view in the finished structure. The use of nails driven into the forms to support the reinforcing steel will not be permitted. Reinforcing shall be placed so that there will be a clear distance of at least one inch between the reinforcing and any anchor bolts or other embedded metalwork. CMWC – 400,000 Gallon Upper Tank 03 20 00-4 E. Unless otherwise specified, measurements made in placing reinforcing bars shall be to the centerline of the bars, except that cover shall be measured to the outside surface of the bar. No reinforcing steel shall be covered with concrete until it has been checked by the Engineer and his permission given to proceed with the concreting. The Engineer shall be given sufficient notice for inspection of the reinforcement. F. All laps, hooks, and bends in reinforcing bars shall conform to the requirements of ACI 315 and ACI 318 unless otherwise shown on the Drawings. Bars in lapped splices shall be in contact and tied in such manner as to maintain at least the specified minimum clearances to adjacent bars and the specified minimum covers. Lap splices of closely spaced bars shall be staggered when possible and where required by or permitted by the Engineer. G. Welded wire fabric shall be lapped sufficiently to maintain uniform strength and shall be securely fastened at the ends and edges. The laps shall conform to the requirements of CRSI Publication, "Placing Reinforcing Bars." H. The minimum concrete clear cover over reinforcing steel shall be 3 inches where the concrete is against soil. In all other cases, the minimum concrete coverage for steel reinforcement shall be as specified in ACI 318, Section 7.7, unless otherwise shown on the Drawings. I. Tolerances for Placing Reinforcing Steel: 1. Variation of protective covering: Clear Cover Maximum Variation 6 inch 2 inch 4 inch 3/8 inch 3 inch 3/8 inch 2 inch 1/4 inch 1-1/2 inch 1/4 inch 1 inch 1/8 inch 3/4 inch 1/8 inch 2. Variation from indicated spacing: One bar diameter or 1-inch maximum. 3.03 CLEANING Reinforcement at time of depositing concrete shall be free of all coatings which might impair bond with concrete, such as form oil, curing compound, mud or heavy deposits of rust. CMWC – 400,000 Gallon Upper Tank 03 20 00-5 3.04 NOTIFICATION AND INSPECTION Contractor shall notify the Engineer at least 7 days ahead of each concrete placement, and no concrete shall be placed until all reinforcing steel has been inspected by the Engineer after installation by the Contractor. 3.05 CORRECTION DURING CONCRETE PLACEMENT Capable steel workers shall be kept on the work at all times during the placing of concrete, and they shall properly reset any reinforcement displaced by runways, workers, or other causes. Reinforcement shall not be bent after being partially embedded in hardened concrete. 3.06 DEFECTIVE WORK A. The following reinforcing steel work will be considered defective and may be ordered by the Engineer to be removed and replaced by the Contractor at no additional cost to the Owner: 1. Bars with kinks or bends not indicated on Drawings; 2. Bars injured due to bending or straightening; 3. Bars heated for bending or straightening; 4. Bars with broken epoxy coating; 5. Reinforcement not placed in accordance with the Drawings or Specifications; 6. Bars that have been welded. END OF SECTION 03 20 00 CMWC – 400,000 Gallon Upper Tank 03 25 30-1 SECTION 03 25 30 CONCRETE JOINTS AND WATERSTOPS PART 1 - GENERAL 1.01 SCOPE A. This Specification Section covers the furnishing and installing of concrete waterstops, and other concrete jointing material. B. The Contractor shall construct expansion, contraction and construction joints in the concrete work as shown on the Drawings or as directed by the Engineer. The Engineer may require that a waterstop be placed in any or all types of joints. 1.02 DEFINITIONS A. Expansion joint is defined as a joint filled with resilient material to permit concrete dimensional change without damage to the concrete. B. Contraction joint is defined as a concrete surface on or against which new concrete is to be placed to provide for volumetric shrinkage of monolithic units or movement between monolithic units but not bonded. The surface of the concrete first placed at a contraction joint shall be coated with sealing compound before the concrete on the other side of the joint is placed. C. Construction joint is defined as a concrete surface that has reached its final setting and on or against which new concrete is placed. Construction joints not indicated on the Drawings shall be so made and located as to least impair the strength of the structure. The Contractor shall show on his submittal drawings the proposed locations of all construction joints for the Engineer's review. l.03 SUBMITTALS A. The Contractor shall provide a manufacturer's certificate warranting compliance of each material with this specification. The certificate shall identify the material, quantity, batch number, and date of manufacture. B. Unless otherwise directed, the Contractor shall submit to the Engineer samples of materials to be used. 1.04 QUALITY ASSURANCE A. It is required that all waterstop field joints and mastic installation shall be subject to continuous, rigid observation and no such work shall be scheduled or started without prior arrangements with the Engineer for observation. CMWC – 400,000 Gallon Upper Tank 03 25 30-2 B. All field joints in PVC waterstop shall be subject to rigid inspection for misalignment, bubbles, inadequate bond, porosity, cracks, offsets and other defects which would reduce the potential resistance of the material to water pressure at any point. All defective joints shall be removed from the site and disposed of by the Contractor. PART 2 - PRODUCTS 2.01 GENERAL All materials placed in contact with each other shall be checked for mutual compatibility. 2.02 WATERSTOPS A. Waterstops shall be of an approved type, supplied by an approved manufacturer and shall be plastic made of virgin polyvinylchloride (PVC) compound, shall be ribbed, uniform in dimensions, dense, homogeneous, free from porosity, and as detailed on the Drawings. No reclaimed PVC shall be used in the compound. Manufacturer shall be Greenstreak, Durajoint or approved equal. B. The finished waterstop material shall meet the following minimum requirements: C. Factory made waterstop joints shall have a tensile strength across the joint equal to at least 600 psi. Field splices and joints shall be made in accordance with the waterstop manufacturer's instructions using a thermostatically-controlled heating iron. 2.03 JOINT SEALANT A. Joints shall be sealed using Sikaflex-2c NS, or approved equal, and shall meet the requirements of ASTM C-920, Type M, Grade NS, Class 25 and FS-TT-S- 00227E, Type II, Class A. Color shall match color of concrete reservoir. B. All joints receiving a joint sealant shall be primed using Sikaflex Primers 429/202, or approved equal. Tensile strength 2,000 psi min. (ASTM D-638) Ultimate elongation 350% min. (ASTM D-638) Shore hardness 75 ± 5 (ASTM D-2240) Specific gravity 1.38 max (ASTM D-792) Stiffness in flexure 700 psi min. (ASTM D-747) Cold brittleness No Failure at -35°F (ASTM D-746) Water absorption: 48 hours 0.15% max (ASTM D-570) Tear Resistance 290 lb./in. min. (ASTM D-624) CMWC – 400,000 Gallon Upper Tank 03 25 30-3 PART 3 - EXECUTION 3.01 EXPANSION, CONTRACTION, AND CONSTRUCTION JOINTS A. General: Joint locations and details not shown on the Drawings shall be in accordance with a plan or schedule submitted to and accepted by the Engineer. In no case shall any fixed metal, embedded in concrete, be continuous through an expansion or contraction joint. B. Construction Joint Treatment: As a lift is completed, the surface shall be protected immediately from any condition that will damage the concrete. C. Cleaning: Horizontal and vertical construction joints and other construction joints indicated to be bonded shall be prepared for receiving the next lift by cleaning with either wet sandblasting or high-pressure water jet shall be equal to that obtained with wet sandblasting. D. Vertical Construction and Contraction Joints: Bond is expected in vertical construction joints, and they shall be cleaned. Bond is not expected in vertical contraction joints, and they shall be coated with a bond breaker compound. Curing compound on the joint may serve this purpose. 3.02 INSTALLING WATERSTOP A. Waterstop shall be embedded in the concrete with equal portions on both sides of the joint unless shown otherwise on the Drawings, and the concrete carefully placed and vibrated to ensure a complete filling and bond between the concrete and waterstop. B. Waterstop material shall be laid in the longest practicable length, with joints spliced to form a continuous watertight seal, and shall be supported and protected from becoming damaged. Damaged waterstop shall be replaced at the Contractor's own expense. C. PVC waterstop shall be stored so as to permit free circulation of air around the material and to protect it from direct rays of the sun. D. In the event any PVC waterstop is installed in the concrete on one side of a joint and will remain unembedded for more than 2 days, suitable precautions shall be taken to shade and protect the exposed material from the direct rays of the sun until the entire waterstop is embedded in concrete. END OF SECTION 03 25 30 CMWC – 400,000 Gallon Upper Tank 03 30 00-1 SECTION 03 30 00 CAST-IN-PLACE CONCRETE PART 1 - GENERAL 1.01 DESCRIPTION A. Work included - Provide all cast-in-place concrete, in place, as indicated on the Drawings, specified herein, and needed for a complete and proper installation. 1.02 QUALITY ASSURANCE A. Standards 1. Perform cast-in-place concrete work in accordance with ACI 3l8, latest edition. 2. Comply with other standards specified in this Section. 3. In case of conflict between the referenced standards, the more stringent requirements shall govern. B. Qualifications of Installers 1. Throughout the progress of installation of the work of this Section, provided at least one person who shall be thoroughly familiar with the specified requirements, completely trained and experienced in the necessary skills, and who shall be present at the site and shall direct all work performed under this Section. 2. In actual installation of the work of this Section, use adequate numbers of skilled workmen to ensure installation in strict accordance with the approved design. 3. In acceptance of rejection of work performed under this Section, the Engineer will make no allowance for lack of skill on the part of workmen. C. Quality Control 1. Inspection and testing of concrete shall be performed by a testing firm selected by the Owner. All testing shall be paid for by the Owner. 2. Do not begin concrete production until all mixes have been reviewed by the Engineer. CMWC – 400,000 Gallon Upper Tank 03 30 00-2 3. Testing. The determination of compressive strength in psi will be made by testing 6-inch diameter by 12-inch cylinders, made and cured in accordance with specifications for "Making and Curing Concrete Compression and Flexural Strength Test Specimens in the Field (ASTM C31) and the "Test for Compressive Strength of Cylindrical Concrete Specimens" (ASTM C39). Tests and analyses of the aggregates and of the resulting concrete will be made by the Engineer at frequent intervals from the Trial Batch specified in Section 1.02 C 4a. The mixes used shall be changed whenever, in the opinion of the Engineer, such change is necessary or desirable to secure the required workability, density, impermeability, surface finish and strength, and the Contractor shall be entitled to no additional compensation because of such changes. The cost of all laboratory tests on cement, aggregates, and concrete will be borne by the Contractor, and the Contractor shall provide test cylinders and assist the Engineer in obtaining specimens for testing. Determine strength per ASTM C 39. Test 1 cylinder at 7 days, 2 cylinders at 28 days and 1 cylinder at 56 days if the average of the 28 day cylinders is not at the specified strength. 1.03 SUBMITTALS A. General - Comply with provisions of Part 2. B. Product data - within 30 calendar days after award of Contract submit: 1. Complete materials list of items proposed to be furnished and installed under this Section; 2. Sufficient data to demonstrate compliance with the specified requirements; 3. Complete description of proposed curing methods; 4. Proposed concrete mix design submittal to include the following information: a. Sieve analysis and source identification of fine and coarse aggregates. Include sand equivalency. b. Source test results for aggregate organic impurities. c. Source test results for deleterious aggregate per ASTM standards. d. Proportioning of all materials. e. Type of cement with mill certificate for cement. f. Slump. g. Air Content. h. Brand, type, ASTM designation, and quantity of each admixture proposed for use. CMWC – 400,000 Gallon Upper Tank 03 30 00-3 i. 28-day cylinder compressive test results of trial mixes per ACI 350 and as indicated herein. j. Shrinkage test results. k. Standard deviation value for concrete production facility. C. Shop Drawings - Accompanying the above submittal, submit complete Shop Drawings including, but not necessarily limited to: (1) Location of all proposed construction joints, keying, and water stops; (2) Location of all openings, depressions, construction and control joints, trenches, sleeves, inserts, and other items affecting reinforcement and placing of concrete. 1.04 PRODUCT HANDLING A. Protection - Use all means necessary to protect the materials of this Section before, during, and after installation and to protect the work and materials of all other trades. B. Replacement - In the event of damage, immediately make all repairs and replacements necessary to the approval of the Engineer and at no additional cost to the Owner. PART 2 - PRODUCTS 2.01 CONCRETE A. Concrete shall be designed in accordance with ACI Standard Recommended Practice for Design of Concrete mixes latest edition to produce the strength for each type of concrete with the slumps and maximum sizes of coarse aggregates specified. Compressive strength, maximum water content, and maximum slump shall conform to the following: Concrete unless otherwise specified: Table 1 – Concrete Mix Design Parameter Concrete Properties ASTM Specification 56-day compressive strength1 (f’c), psi 5,000 C 873 Shrinkage2 (%) 0.040 C 157 Set Time (hours) 6 ± 1 C 403 Air entrainment (%) 5 ± 1.5 C 173 Temperature, deg F ≤ 90 C 1094 Slump at max w/(c+p), in 5 to 7 max CMWC – 400,000 Gallon Upper Tank 03 30 00-4 Class F Fly Ash3 (%) 20 min to 25 max A 618 w/(c+p) ratio 0.36 – 0.41 Cement content, per cubic yard Type I-II as needed Max Size Aggregate, in 1 ½ C33 Foot Notes to Table 1 1. The 28-day compressive strength of the concrete shall be at least 90% of the 56-day compressive strength or ≥ 4,500 psi. Acceptance of the mix will be based on the 56-day compressive strength. 2. For slabs larger than 10,000 square feet in area, a shrinkage-reducing admixture (SRA) shall be added. A submittal of type and amount must be made to the ENGINEER for approval. Water amount shall also be reduced based on the amount of SRA added. 3. Fly ash substitution for cement shall be based on specific gravity and weight of materials. 4. Initial approval of the concrete mix for permeability will be based on the Master Builders Rapid Chloride Permeability and Chloride Ion Content Estimator Program or other similar program/method that shows an estimated permeability for the concrete mix. Final approval will be based on certified results according to ASTM C 1202-97. B. Concrete designated as "lean concrete": 1. Compressive strength at 28 days = 2,000 lbs/sq inch. 2. Minimum Cement Content = 4 sacks/cu yd. 2.02 CEMENT A. General 1. All Portland Cement shall conform to the requirements of ASTM C150, except that 28 day cube strength shall be a minimum of 387 kg per sq. cm (5500 psi). 2. Cement to be used in construction at or below grade shall comply with the requirements of Type II. 3. Cement for above grade construction shall be Type II or Type V. 4. Do not use cement having a temperature greater than 60 degrees C (140 degrees F). B. Sequence of Use - Use only one brand of cement for the entire work and use in the same sequence as received at the site. CMWC – 400,000 Gallon Upper Tank 03 30 00-5 C. Mill Tests - Furnish mill tests for all cement. The 28 day cube strength results may be submitted in a separate report but shall be related to the specific batch tested. 2.03 AGGREGATE A. General - All fine aggregates shall conform to requirements of ASTM C 33, except as modified below: U.S. Size Zone 2 Zone 3 Zone 4 3/8 inch 100 100 100 No. 4 100 100 100 No. 8 98-100 90-100 98-100 No. 16 55-90 75-100 90-100 No. 30 35-59 69-79 80-100 No. 50 8-30 12-40 15-50 No. 100 0-10 0-10 0-15 B. Coarse Aggregates 1. Coarse aggregate shall be crushed stone complying with ASTM C33. 2. If the Contractor demonstrates to the Engineer by tests that a finer gradation can be used with the proposed fine aggregate to produce an equal or better quality concrete, the use of the finer gradation will be approved by the Engineer when complete substantiating data is submitted and approved. 3. Quality Comparisons will be made on compressive strength, flexural strengths, workability, and drying shrinkage. C. Aggregate Sources - Provide aggregates from one source of supply only. D. Aggregate sizes 1. Maximum aggregate size shall be not larger than one-fifth of the narrowest dimension between sides of forms, one-third of the depth of slabs, nor three-fourths of the minimum clear spacing between individual reinforcing bars or bundles of bars. 2. Stockpile the aggregate in a manner to protect from contamination. 2.04 WATER Water used as an ingredient in concrete shall be clean, potable, and free from injurious amounts of foreign matter. CMWC – 400,000 Gallon Upper Tank 03 30 00-6 2.05 CONCRETE ADMIXTURES A. Air Entraining Agent. An air-entraining agent meeting the requirements of "Specifications for Air Entraining Admixtures for Concrete" (ASTM C260) shall be used. Sufficient air-entraining agent shall be used to provide a total air content of 2 to 4 percent; provided that, when the mean daily temperature in the vicinity of the worksite falls below 40oF for more than one day, the total air content provided shall be 4 to 8 percent. The Owner reserves the right, at any time, to sample and test the air-entraining agent received on the job by the Contractor. In no event shall any of said agent be used for work under the contract without approval by the Engineer. The air-entraining agent shall be added to the batch in a portion of the mixing water. The solution shall be batched by means of a mechanical batcher capable of accurate measurement. B. Water-Reducing Agent. At the Contractor's option, or at the request of the Engineer, but in either case at the expense of the Contractor, an admixture may be added to the concrete to control the set, effect water reduction and increase workability. Such admixtures may be either a hydroxylated carboxylic acid type or a hydroxylated polymer type, but shall contain no calcium chloride. The required quantities of cement shall be used in the mix regardless of whether or not any admixture is used. The quantity of admixture used and the method of mixing shall be in accordance with the manufacturer's instructions. Where the air temperature at the time of placement is expected to be consistently over 80`F, such admixture shall be Super Concrete Emulsion's "Plastiment," Master Builder's "Pozzolith 300R," or equal. Where the air temperature at the time of placementis expected to be consistently under 40`F, such admixture shall be Super Concrete Emulsion's "Plastocrete A," or equal. C. Calcium Chloride. The use of calcium chloride in concrete will not be permitted. 2.06 CURING MATERIALS A. Burlap mats weighing approximately 305 grams per square feet (9 oz. per square yard) for moist curing shall conform to AASHTO M182. B. Liquid curing compound shall be Hunt Process 225-TU as manufactured by Hunt Process Company, Santa Fe Springs, California or equal. It shall contain a fugitive dye so that areas of application will be readily distinguishable for a 30-day period in the sunlight. C. Asphalt emulsion damp-proofing agent shall be Laykold Waterproofing as manufactured by Chevron Asphalt Company, Oakland, California or equal. CMWC – 400,000 Gallon Upper Tank 03 30 00-7 2.07 OTHER MATERIALS A. Waterstops shall be extruded from an elastomeric polyvinylchloride compound and shall be as manufactured by Water Seals, Inc., Chicago, Illinois or equal. No reclaimed or scrap material shall be used. (1) Flat-strip waterstops shall have a minimum thickness of 3/16 of an inch and shall be as shown in the drawings. (2) Center-bulb waterstops shall be as shown on the drawings. (3) Fittings shall be used at intersections of all ribbed waterstops. B. Vapor barriers shall be polyethylene sheets having a minimum thickness of 0.2 mm. C. Construction joint sealant shall be polyurethane polymer designed for bonding to concrete which is continuously submerged in water. No material will be acceptable which has an unsatisfactory history as to bond or durability when used in the joints of hydraulic structures. Surface to be sealed shall be primed with primer supplied by the same manufacturers supplying the sealant. No sealant will be permitted to be used without a primer. D. Concrete floor hardener shall be Conrad Sovig Company, "K-Natural," or equal. E. Metallic aggregate, heavy-duty finish, shall be packaged ground and graded cubicle-iron particles with dispersing agents formulated to blend with portland cement for monolithic surface treatment. Use iron aggregate free from nonferrous metals, oil, grease, rust, and other impurities. F. Nonshrink grout shall be a ready-to-use metallic aggregate product requiring only the addition of water at the job site, and shall have the following attributes: (1) Be capable of producing a flowable grouting material having no drying shrinkage or settlement at any age; (2) The compressive strength of grout (50 mm or 2" cubes) shall be not less than 350 kg per sq. cm (5,000 psi) at age seven days, and 527 kg per sq. cm (7,500 psi) at age 28 days. (3) Store, mix, and place the nonshrink grout in strict accordance with manufacturer's recommendations as approved by the Engineer. 2.08 BATCHING, MIXING, AND DELIVERY EQUIPMENT Use transit-mixed concrete from approved batching and mixing plant. Batch, mix, and transport concrete to site in accordance with provisions of ASTM C 94. CMWC – 400,000 Gallon Upper Tank 03 30 00-8 2.09 PUMPING OF CONCRETE A. General. Pumping of concrete will be permitted only with the Engineer's approval. If in the Engineer's opinion, the pumped concrete does not produce satisfactory end results, the Contractor shall discontinue the pumping operation and proceed with the placing of concrete using conventional methods. B. Pumping Equipment. (1) The pumping equipment must have two cylinders and be designed to operate with one cylinder only in case the other one is not functioning. In lieu of this requirement, the Contractor may have a standby pump on the site during pumping. (2) The minimum diameter of the hose (conduit) shall be 4 inches. (3) Pumping equipment and hoses (conduits) that, in the opinion of the Engineer, are not functioning properly, shall be replaced. (4) Aluminum conduits for conveying the concrete will not be permitted. C. Proportioning. Concrete shall conform to specifications subsections 2.01 through 2.05. D. Field Control. Concrete samples for slump (ASTM C143) and test cylinders (ASTM C31 and C39) will be taken at the placement (discharge) end of the line. PART 3 - EXECUTION 3.01 INSPECTION Examine the areas and conditions under which work of this Section will be performed. Correct conditions detrimental to the proper and timely completion of the work. Do not proceed until unsatisfactory conditions have been corrected. 3.02 CONCRETE PLACEMENT A. General - Place concrete in compliance with practices and recommendations of ACI 304, and as herein specified. Concrete which upon or before placing is found not to conform to the requirements specified herein shall be rejected and immediately removed from the work. Concrete which is not placed in accordance with these specifications, or which is of inferior quality, as determined by the Engineer, shall be removed and replaced by and at the expense of the Contractor. No concrete shall be placed except in the presence of duly authorized representative of the Engineer. CMWC – 400,000 Gallon Upper Tank 03 30 00-9 B. Procedures 1. Deposit concrete continuously or in layers of such thickness that no concrete will be placed on concrete which has hardened sufficiently to cause the formation of seams or planes of weakness within the section. 2. If a section cannot be placed continuously, provide construction joints as herein specified. 3. Perform concrete placing at such a rate that concrete which is being integrated with fresh concrete is still plastic. 4. Deposit concrete as nearly as practicable in its final location to avoid segregation due to rehandling and flowing. 5. Do not subject concrete to any procedure which will cause segregation. 6. Screen concrete which is to receive other construction to the proper level to avoid excessive skimming and grouting. 7. Do not use concrete which becomes nonplastic and unworkable, or does not meet the required quality control limits, or which has been contaminated by foreign materials. 8. Remove rejected concrete from the site and dispose of it in a location approved by the Engineer for that purpose. C. Order of Placing Concrete. (a) The order of placing concrete in all parts of the work shall be subject to the approval of the Engineer. In order to minimize the effects of shrinkage, the concrete shall be placed in units as bounded by construction joints shown on the drawings. The placing of units shall be done by placing alternate units in a manner such that each unit placed shall have cured at least 7 days before the contiguous unit or units are placed, except that the corner sections of vertical walls shall not be placed until all the adjacent wall panels have cured at least 14 days. D. Concrete Conveying 1. Handle concrete from the point of delivery and transfer to the concrete conveying equipment, and to the locations of final deposit, as rapidly as practicable and by methods which will prevent segregation and loss of concrete mix materials. CMWC – 400,000 Gallon Upper Tank 03 30 00-10 2. Provide runways for wheeled concrete conveying equipment from the concrete delivery point to the locations of final deposit. 3. Keep interior surfaces of conveying equipment. Free from hardened concrete, debris, water, and other deleterious materials. 4. Pumps may be used only if they can pump the mix designed. Do not add fine aggregate or water to the mix to satisfy needs of a pumping device. 5. Use chutes or tremies for placing concrete where a drop of more than 2 m (72") is required. 6. Where free drop through tremies exceeds 6 m (18'-0"), use flow checking devices. E. Placing Concrete in Forms 1. Deposit concrete in forms in horizontal layers not deeper than 60 cm (24"), and avoid inclined construction joints. 2. Where placement consists of several layers, place each layer while preceding layer is still plastic and to avoid cold joints. 3. Remove temporary spreaders in forms when concrete placing has reached the elevation of such spreaders. 4. Do not place concrete in supporting elements until the concrete previously placed in columns and walls is no longer plastic. F. Placing Concrete Slabs 1. Deposit and consolidate concrete slabs in a continuous operation, within the limits of construction joints, until the placing of a panel or section is completed. 2. Consolidate concrete during placement by use of the specified equipment, thoroughly working concrete around the reinforcement and into corners. 3. Consolidate concrete placed in beams and girders of supported slabs, and against bulkheads of slabs on grade, as specified for formed concrete structures. 4. Consolidate concrete in remainder of slabs by vibrating bridge screeds, roller pipe screeds, or other methods acceptable to the Engineer. CMWC – 400,000 Gallon Upper Tank 03 30 00-11 5. Limit the time of vibrating consolidation to prevent bringing an excess of fine aggregate to the surface. 6. Bring slab surfaces to the correct level with a straightedge, and then strike off. 7. Use bullfloats or darbies to smooth the surface, leaving it free from bumps and hollows. 8. Do not sprinkle water on the plastic surface; do not disturb the slab surfaces prior to start of finishing operations. 9. Concrete placed in sloping slabs shall proceed uniformly from the bottom of the slab to the top, for the full width of the pour. As the work progresses, the concrete shall be vibrated and carefully worked around the slab reinforcement, and the surface of the pour screeded in an up-slope direction. G. Hot Weather Placing - Comply with ACI 305. 1. When hot weather conditions exist which would seriously impair the quality and strength of concrete, place the concrete as follows: (1) Maintain concrete temperature at time of placement below 32 degrees C (90` F). Use chilled mixing water or chopped ice to control concrete temperature, provided the water equivalent of the ice is calculated to the total amount of water. (2) Cover reinforcing steel with water-soaked burlap if the steel becomes too hot. Steel temperature shall not exceed the ambient air temperature immediately prior to placement of concrete. (3) Wet forms thoroughly prior to placement of concrete. (4) Use set-control admixtures in the mix. H. Cold Weather Placing. Comply with ACI 306. 1. Earth foundations shall be free from frost or ice when concrete is placed upon or against them. 2. Design mix, mixing procedures, placing, finishing and curing of concrete when the concrete temperature is lower than 55 degrees F or when the temperature of the air is lower than 40 degrees F shall be deemed "cold weather" concrete work and shall require additional and special procedures for such work. CMWC – 400,000 Gallon Upper Tank 03 30 00-12 3. Concrete aggregates shall be warmed, water shall be warmed, and all equipment shall be kept as near concrete temperature as possible. Water-cement ratio shall be carefully adjusted to prevent excessive cooling or possible freezing. An excessively low temperature conditions, all areas to receive concrete shall be protected with enclosures and the temperature maintained above the allowed minimum with space heaters or similar equipment. 4. After concrete is placed and compacted the finishing shall be done as quickly as possible and the concrete retained at a temperature of not less than 50 degrees F for at least 72 hours, after which time the temperature may be reduced at the rate of not more than one degree F per hour for the first 24 hours. Calcium chloride, other salts, or foreign materials shall not be used in concrete to prevent freezing. 5. During curing, freezing of concrete shall be prevented. Any concrete frozen before completely cured shall be removed and replaced by the Contractor at no additional cost to the Owner. 6. Where artificial heat is employed, special care shall be taken to prevent the concrete from drying. 3.03 CONSOLIDATION A. General 1. Consolidate all concrete in accordance with provisions of ACI 309. 2. Consolidate each layer of concrete immediately after placing, by use of internal concrete vibrators supplemented by hand-spading, rodding, or tamping. 3. Do not use vibrators to transport concrete inside the forms. 4. During all phases of operation, maintain a frequency of not less than 10,000 vibrations per minute per internal vibrator. 5. Do not vibrate forms or reinforcement. B. Equipment 1. Provide adequate number of units and power source at all times. Maintain spare units on hand to ensure adequacy. 2. If, in the opinion of the Engineer, the equipment being used is not adequate to accomplish proper consolidation, the Engineer may order delay in further placement of concrete until such equipment is available for use at the location of placement of concrete. CMWC – 400,000 Gallon Upper Tank 03 30 00-13 C. Procedures 1. Limit duration of vibration to time necessary to produce satisfactory consolidation without causing segregation of aggregates. 2. Insert the vibrator so as to penetrate the lift immediately below the one being placed, and manipulate to blend the two lifts. 3. Do not insert the vibrator into lower courses which have begun to set. 4. Use the vibrator to melt down the concrete as it is being placed, and use the vibrator to consolidate the mass of concrete. 5. In the case of wall construction, assign at least one vibrator and vibrator-operator to melting down the mix; and assign at least one other vibrator and vibrator-operator to consolidating the mass of concrete. 6. Spacing between insertions of the vibrator which is used to consolidate shall not exceed twice the radius of action as shown in table 5.1.4 of ACI 309. 7. Under no circumstances shall the points of insertion during the consolidation phase be more than 45 cm (18") apart. D. Maintenance of Vibrators - Initiate a maintenance program for the vibrators to assure that they are operating at peak efficiency at all times, and to facilitate effective consolidation of the concrete. 3.04 JOINTS A. Construction Joints. 1. General. (a) Construction joints shall be provided where shown on the drawings. If construction joints necessary for the progress of the work are not shown on the drawings, show them in complete detail on the Shop Drawings required under paragraph 1.03 C. (b) Provide keyways 1 1/2 inch deep in all construction joints in walls, slabs, and between footings and walls. (c) Place construction joints perpendicular to the main reinforcement. Continue all reinforcement across construction joints. (d) Except where otherwise shown or specified, at all joints where waterstops are required, the joint face of the first pour shall be CMWC – 400,000 Gallon Upper Tank 03 30 00-14 coated with liquid curing compound (paragraph 2.06 B). The surfaces of the groove for the sealant shall not be coated. 2. Construction Joint Sealant. (a) Where shown, construction joints in floor slabs shall be provided with tapered grooves which shall be filled with a construction joint sealant. The material used for forming the tapered grooves shall be left in the grooves until just before the grooves are cleaned and filled with joint sealant. After removing the forms from the grooves, all laitance and fins shall be removed, and the grooves shall be sandblasted. The grooves shall be allowed to become thoroughly dry, after which they shall be blown out; immediately thereafter, they shall be primed and filled with the construction joint sealant. The primer and sealant shall be placed strictly in accordance with the recommendations of the manufacturer, taking special care to properly mix the sealant prior to application. All sealant shall cure at least 7 days before the structure is filled with water. (b) All sealant shall be installed by a competent waterproofing subcontractor who has a successful record of performance in similar installations. Before work is commenced, the crew doing the work shall be instructed as to the proper method of application by a representative of the sealant manufacturer. The Contractor shall provide a 5-year written guarantee of the entire sealant installation against defects in materials and workmanship, together with a statement that he agrees to repair or replace, to the satisfaction of the Owner, at not cost to the Owner, any such defective areas which become evident within said 5-year guarantee period. 3. Waterstops. Care shall be used in placing concrete around waterstops. The concrete shall be carefully worked by rodding and vibrating to make sure that all air and rock pockets have been eliminated. Where flat-strip type waterstops are used, the concrete shall be worked under the waterstops by hand, making sure that all air and rock pockets have been eliminated. B. Isolation Joints in Slabs on Grade. Provide isolation joints in slabs on grade at point of contact between slabs on grade and vertical surfaces where indicated. Caulk in accordance with the provisions of Section 03 25 30. C. Control Joints in Slabs on Grade. Provide control joints in slabs on grade to form panels or patterns as shown. Use one of the following alternates: (1) Cast a formed sheet metal key in the slab. CMWC – 400,000 Gallon Upper Tank 03 30 00-15 (2) Insert a pre-molded hardboard or fiberboard strip into the fresh concrete until the top surface of the strip is flush with the slab surface. After the concrete has cured for at least seven days, remove inserts and clean loose debris from the joint. Caulk in accordance with the provisions of Section 03 25 30. Discontinue reinforcement at control joints except where noted otherwise on the drawings. 3.05 CONCRETE FINISHING A. Finish of Formed Surfaces 1. Rough Form Finish (1) Provide as-cast rough form finish to formed concrete surfaces that are to be concealed in the finish work or by any other construction. (2) Standard rough form finish shall be the concrete surface having the texture imparted by the form facing material used, with tie holes and defective areas repaired and patched, and all fins and other projections exceeding 6 mm (1/4") in height rubbed down or chipped off. 2. Smooth Form Finish (1) Provide as-cast smooth form finish for formed concrete surfaces that are to be exposed to view, or that are to be covered with a coating material other than cement plaster applied directly to the concrete. (2) Produce smooth form finish by selecting form material to impart a smooth, hard, uniform texture and arranging them orderly and symmetrically with a minimum of seams. (3) Repair and patch defective areas with all fins and other projections completely removed and smoothed. 3. Related Unformed Surfaces - At tops of walls, horizontal offsets, and similar unformed surfaces occurring adjacent to formed surfaces, strike off smooth and finish with a smooth troweled finish. B. Monolithic Slab Finishes 1. Scratch Finish (1) Apply scratch finish to monolithic slab surfaces that are to receive concrete floor topping or mortar setting beds for terrazzo tile and other bonded applied cementitious-finish flooring material. CMWC – 400,000 Gallon Upper Tank 03 30 00-16 (2) After placing slabs, plane the surface to a tolerance not exceeding 6 mm (1/4") in 60 cm (24") when tested with a straightedge. (3) Slope uniformly to drains where required. (4) After leveling, roughen the surface before its final set by using a stiff broom, a brush, or a rake. 2. Float Finish (1) Apply float finish to monolithic slab surfaces that are to receive trowel finish and other finishes as specified, and to slab surfaces which are to be covered with insulation, and as otherwise shown on the Drawings or in the schedules. (2) After placing concrete slabs, do not work the surface further until ready for floating. (3) Begin floating when the surface water has disappeared and when the concrete has stiffened sufficiently to permit operation of a power driven float, or both. (4) Consolidate the surface with power-driven floats, or by hand-floating if area is small or inaccessible to power units. (5) Check and level the surface plane to a tolerance not exceeding 6 mm (1/4") in 3 m (10'-0") when tested with a 3 m (10'-0") straightedge placed on the surface at not less than two different angles. (6) Cut down high spots and fill low spots. (7) Uniformly slope to drains where required. (8) Immediately after leveling, refloat the surfaces to a smooth, uniform, granular texture. 3. Trowel Finish (1) Apply trowel finish to monolithic slab surfaces that are to be exposed to view, unless otherwise shown, and to slab surfaces that are to be covered with resilient flooring, carpeting, paint, or other thin-film finish coating system. (2) After floating, begin the first trowel finish operation using a power-driven trowel. Begin final troweling when the surface produces a ringing sound as the trowel is moved over the surface. CMWC – 400,000 Gallon Upper Tank 03 30 00-17 (3) Consolidate the concrete surface by the final hand troweling operation, free from trowel marks, uniform in texture and appearance, and with a surface plane to tolerance not exceeding 3 mm (1/8") in 3 m (10'-0") when tested with a 3 m (10'-0") straightedge. (4) Grind smooth those surface defects which would telegraph through applied floor covering system. 4. Nonslip Broom Finish (1) Apply nonslip broom finish to exterior concrete platforms, steps, and ramps, and elsewhere as shown on the Drawings or in the schedules. (2) Immediately after trowel finishing, slightly roughen the concrete surface by brooming in the direction perpendicular to the main traffic route. Use a fiber bristle broom. (3) Coordinate the required finish with the Engineer prior to application. 5. Chemical Hardener Finish (1) Apply chemical hardener finish to all exposed dry interior concrete floors. (2) Apply liquid chemical hardener after complete curing and drying of the concrete surface. (3) Dilute the liquid hardener with water and apply three coats: a. First Coat: 1/3 strength b. Second Coat: 1/2 strength c. Third Coat: 2/3 strength (4) Evenly apply all coats allow 24 hours drying time between coats. 6. Heavy-Duty Wear-Resistant Finish. (1) Provide heavy-duty wear-resistant finish to slab surfaces maintenance area of the Control Building. (2) Premix Portland Cement and required dispersing agents, and deliver to the site in moisture-resistant sealed bags. CMWC – 400,000 Gallon Upper Tank 03 30 00-18 (3) Apply the premixed material at the manufacturer's recommended rate, providing not less than 7.35 kg of material per sq. m (1.4 lbs. per sq. ft.). (4) Immediately following the first floating operation, uniformly distribute over the concrete surface approximately 1/2 of the specified weight of the blended dry shake materials, and embed with power floating. (5) After the first dry shake application has been embedded, uniformly distribute the remaining portion of blended dry shake material at right angles to the first application, and embed by power floating. (6) Comply with manufacturer's application instructions. (7) After completion of broadcasting and floating, apply a trowel finish as specified herein. 3.06 CURING AND DAMPPROOFING A. General. All concrete shall be cured for not less than 14 days after placing, in accordance with the methods specified herein for the different parts of the work, and described in detail in the following subsections. Surface to be Cured or Dampproofed Method Unstripped wooden forms 1 Construction joints between footings and walls, and between floor slab and columns 2 Encasement concrete and thrust blocks 3 All concrete surfaces not specifically provided for elsewhere in this subsection 4 Floor slabs in hydraulic structures and exterior surfaces of exposed roof slabs 5 Exterior buried surfaces of walls 6 (1) Method 1. Wooden forms shall be wetted immediately after concrete has been poured and shall be kept wet with water until removed. If forms are removed with 14 days of placing the concrete, curing shall be continued in accordance with the applicable method. (2) Method 2. The surface shall be covered with burlap mats which shall be kept wet with water for the duration of the curing period, until the concrete CMWC – 400,000 Gallon Upper Tank 03 30 00-19 in the walls has been placed. No curing compound shall be applied to surfaces cured under Method 2. (3) Method 3. The surface shall be covered with moist earth not less than 4 hours, nor more than 24 hours, after the concrete is placed. (4) Method 4. (a) The surface shall be sprayed with a liquid curing compound which will not affect the bond of paint to the concrete surface. It shall be applied in accordance with the manufacturer's instructions at a maximum coverage rate of 200 square feet per gallon in such a manner as to cover the surface with a uniform film which will seal thoroughly. (b) Where the curing compound method is used, care shall be exercised to avoid damage to the seal during the curing period. Should the seal be damaged or broken before the expiration of the curing period, the break shall be repaired immediately by the application of additional curing compound over the damaged portion. (c) Wherever curing compound may have been applied by mistake to surfaces against which concrete subsequently is to be placed and to which it is to adhere, said compound shall be entirely removed by wet sandblasting just prior to the placing of new concrete. (d) Where curing compound is specified, it shall be applied within 2 hours after completion of the finish on unformed surfaces, and within 2 hours after removal of forms on formed surfaces. Repairs required to be made to formed surfaces shall be made within the said 2-hour period; provided however, that any such repairs which cannot be made within the said 2-hour period shall be delayed until after the curing compound has been applied. When repairs are to be made to an area on which curing compound has been applied, the area involved shall first be wet-sandblasted to remove the curing compound, following which repairs shall be made as provided under subsection 3.08. 5. Method 5. Immediately after the concrete has been troweled, it shall be given a coat of curing compound in accordance with subsection (e), herein. Not less than 1 hour nor more than 4 hours after the coat of curing compound has been applied, the surface shall be wetted with water delivered through a fog nozzle, and concrete-curing blankets shall be placed on the slabs. The curing blankets shall consist of one of the following two types: CMWC – 400,000 Gallon Upper Tank 03 30 00-20 (a) Sheets of heavy, waterproof sisalkraft paper laid with the edges butted together and with the joints between strips sealed with 2-inch wide strips of sealing tape or with the edges lapped not less than 3 inches and fastened together with a waterproof cement to form a continuous watertight joint. (b) Sheets of clear polyethylene having a thickness of not less than 6 mils laid with edges butted together and with the joints between sheets sealed with 1-inch wide strips of acetate tape. The curing blankets shall be left in place during the 14-day curing period and shall not be removed until after concrete for adjacent work has been placed. Should the curing blankets become torn or otherwise ineffective, the Contractor shall replace damaged sections. During the first 7 days of the curing period, no traffic of any nature and no depositing, temporary or otherwise, of any materials shall be permitted on the curing blankets. During the remainder of the curing period, foot traffic and temporary depositing of materials that impose light pressure will be permitted only on top of plywood sheets 5/8-inch minimum thickness, laid over the curing blanket. 6. Method 6. (a) The surface shall be sprayed with a dampproofing agent consisting of an asphalt emulsion immediately after the wall forms have been removed. The asphalt emulsion shall be approved by the Engineer. Application shall be in two coats. The first coat shall be diluted to 2 strength by the addition of water and shall be sprayed on so as to provide a maximum coverage rate of 100 square feet per gallon of dilute solution. The second coat shall consist of an application of the specified material, undiluted, and shall be sprayed on so as to provide a maximum coverage rate of 100 square feet per gallon. 3.08 REMEDIAL WORK A. General. Reinforce or replace deficient work as directed by the Engineer and at no additional cost to the Owner. B. Care and Repair of Concrete. The Contractor shall protect all concrete against injury or damage from excessive heat, lack of moisture, overstress, or any other cause until final acceptance by the Owner. Particular care shall be taken to prevent the drying of concrete and to avoid roughening or otherwise damaging the surface. Any concrete found to be damaged, or which may have been originally defective, or which becomes defective at any time prior to the final acceptance of the completed work, or which departs from the established line or grade, or which, for any other reason, does not conform to the specifications, shall be CMWC – 400,000 Gallon Upper Tank 03 30 00-21 satisfactorily repaired or removed and replaced with acceptable concrete at the Contractor's expense. C. Treatment of Surface Defects. 1. As soon as forms are removed, all exposed surfaces shall be carefully examined and any irregularities shall be immediately rubbed or ground in a satisfactory manner in order to secure a smooth, uniform, and continuous surface. Plastering or coating of surfaces to be smoothed will not be permitted. No repairs shall be made until after inspection by the Engineer, and then only in strict accordance with his directions. Concrete containing voids, holes, honeycombing, or similar depression defects, shall be completely removed and replaced; provided that where required or approved by the Engineer, defects shall be repaired with gunite or with cement mortar placed by an approved compressed air mortar gun. In no case will extensive patching of honeycombed concrete be permitted. All repairs and replacements herein specified shall be promptly executed by the Contractor at his own expense. 2. Defective surfaces to be repaired as specified in subsection (a) hereof shall be cut back from trueline a minimum depth of 2-inch over the entire area. Feathered edges shall be avoided. Where chipping or cutting tools are not required in order to deepen the area properly, the surface shall be prepared for bonding by the removal of all laitance or soft material, and not less than 1/32-inch depth of the surface film from all hard portions, by means of an efficient sandblast. After cutting and sandblasting, the surface shall be wetted sufficiently in advance of shooting with gunite or with cement mortar so that while the repair material is being applied, the surfaces under repair will remain moist, but not so wet as to overcome the suction upon which a good bond depends. The material used for repair purposes shall consist of a mixture of 1 sack of cement to 3 cubic feet of sand. For exposed walls, the cement shall contain such a proportion of Atlas white portland cement as is required to make the color of the patch match the color of the surrounding concrete. 3. Holes left by tie-rod cones shall be reamed with suitable toothed reamers so as to leave the surfaces of the holes clean and rough. These holes then shall be repaired in an approved manner with dry-packed mortar. Holes left by form tying devices having a rectangular cross-section, and other imperfections having a depth greater than their least surface dimension, shall not be reamed but shall be repaired in an approved manner with dry-packed mortar. 4. All repairs shall be built up and shaped in such a manner that the completed work will conform to the requirements of Section 03 30 00, subsection 3.05, using approved methods which will not disturb the bond, CMWC – 400,000 Gallon Upper Tank 03 30 00-22 cause sagging, or horizontal fractures. Surfaces of said repairs shall receive the same kind and amount of curing treatment as required for the concrete in the repaired section. 5. Prior to filling any structure with water, any cracks that may have developed shall be "vee'd" as shown on the drawings and filled with sealant conforming to the requirements of subsections 2.07 C and 3.04 A of this section. 3.09 TOLERANCES A. General. The Contractor shall set and maintain concrete forms so as to ensure that the completed work is within the tolerances specified herein. "Tolerance" is defined as the permissible variation from lines, grades, or dimensions shown on the drawings. Where tolerances are not stated in the specifications, permissible deviations will be according to ACI 347. B. Special Tolerances. Item Tolerance 1. Variation of the constructed In 10 feet: 1/4 inch linear outline from the In 20 feet or more: 2 inch established position in plan 2. Variation from the level or from In 10 feet: 1/4 inch the grades shown on the drawings In 20 feet or more: 2 inch 3. Variation from the plumb In 10 feet: 1/4 inch In 20 feet or more: 2 inch 4. Variation in the thickness of Minus 1/4 inch slabs and walls Plus 2 inch 5. Variation in the locations and + 1/4 inch sizes of slab and wall openings END OF SECTION 03 30 00 CMWC – 400,000 Gallon Upper Tank 05 05 10-1 SECTION 05 05 10 HOT-DIP GALVANIZING PART 1 - GENERAL 1.01 DESCRIPTION This section provides specifications for steel pieces requiring a hot-dip galvanized coating. Unless otherwise indicated, all steel items weighing 100 pounds or less, and larger items as specified or shown on the drawings, including ladders, shall be hot-dip galvanized. 1.02 QUALITY CONTROL Hot-dip zinc coating shall conform to the following ASTM specifications: A120 Specification for Black and Hot-Dipped Zinc Coated Welded and Seamless Steel Pipe for Ordinary Uses. A123 Specifications for Zinc Coatings on Structural Steel Shapes, Plates, and Bars and Their Products. A153 Specifications for Zinc Coating on Iron and Steel Hardware. A384 Safeguarding Against Warpage and Distortion During Hot-Dip Galvanizing of Steel Assemblies. A385 Providing High Quality Zinc Coatings on Assembled Products. A386 Zinc Coating on Assembled Steel Products. PART 2 - PRODUCTS (not used) PART 3 - EXECUTION 3.01 FIELD REPAIR Damaged surfaces of galvanized metals shall be cleaned and touched up with zinc dust-zinc oxide coating. Field repair of galvanized surfaces shall be accomplished with Z.R.C., as manufactured by Z.R.C. Chemical Products Co., Galvicon, as manufactured by Galvicon Co., or approved equal. END OF SECTION 05 05 10 CMWC – 400,000 Gallon Upper Tank 05 50 00-1 SECTION 05 50 00 MISCELLANEOUS METALWORK PART 1 GENERAL 1.01 DESCRIPTION This section provides specifications for steel accessories, including seat angles, supports and brackets, and other miscellaneous metalwork. 1.02 QUALITY ASSURANCE Shop and field welding shall conform to the requirements of the AISC specifications. The use of salvaged, reprocessed or scrap materials will not be permitted. PART 2 - PRODUCTS 2.01 MATERIALS Nonstructural steel bars, angles, clips, and similar items - ASTM A36 or ASTM A283 Iron castings - ASTM A48 Structural steel tubing - ASTM A500, Grade B Steel bolts (except flanges and anchor bolts) - ASTM A307, Grade A Stainless steel - ASTM A320 Type 316 Welded stainless steel - ASTM A320 Type 316L 2.02 FABRICATION A. General. Holes shall be punched 1/16 inch larger than the nominal size of the bolts, unless otherwise indicated. Whenever needed, because of the thickness of the metal, holes shall be subpunched and reamed or shall be drilled. No drifting of bolts nor enlargement of holes will be allowed to correct misalignment. All cutting, drilling, punching, threading and tapping required for miscellaneous metal or adjacent work shall be performed prior to hot-dip galvanizing. Field work shall not be permitted on galvanized items. CMWC – 400,000 Gallon Upper Tank 05 50 00-2 B. Seat Angles, Supports and Brackets. Seat angles over slide gate guides shall be welded to the guides. Seat angles for grating, supports for floor plates, clips for precast panels and brackets for piping shall be steel, of sizes shown and shall be hot-dip galvanized after fabrication unless otherwise noted. C. Miscellaneous Steel Metalwork. All custom fabricated steel metalwork other than structural steel shall be considered miscellaneous steel metalwork. Miscellaneous steel metalwork including embedded and nonembedded steel metalwork, brackets, hangers and inserts shall be as indicated on the drawings. All miscellaneous steel metalwork shall be hot-dip galvanized after fabrication. PART 3 - EXECUTION 3.01 INSTALLATION A. General. Field work shall not be permitted on galvanized items. Drilling of bolts or enlargement of holes to correct misalignment will not be allowed. Dissimilar metals shall be protected from galvanic corrosion by means of pressure tapes, coatings or isolators as approved. Metalwork to be embedded in concrete shall be placed accurately and held in correct position while the concrete is placed or, if shown or accepted, recesses or blockouts shall be formed in the concrete. The surfaces of metalwork in contact with or embedded in concrete shall be thoroughly cleaned of all rust, dirt, grease, loose scale, grout, mortar and other foreign matter. If accepted, recesses may be neatly cored in the concrete after it has attained its design strength and the metalwork grouted in place. B. Seat Angles, Supports and Guides. Seat angles for grating and supports for floor plates shall be set so that they are flush with the floor and also maintain the grating and floor plates flush with the floor. 3.02 CLEANING After installation, damaged surfaces of shop primed metals shall be cleaned and touched up with the same material used for the shop coat. Damaged surfaces of galvanized metals shall be cleaned and touched up with zinc dust-zinc oxide coating. END OF SECTION 05 50 00 CMWC – 400,000 Gallon Upper Tank 07 16 16-1 SECTION 07 16 16 XYPEX ADMIXTURE PART 1 GENERAL 1.1 SUMMARY A. Section Includes: Furnishing of all labor, materials, services and equipment necessary for the supply and installation of crystalline waterproofing additive to concrete structures as indicated on the drawings and as specified herein. The admixture shall specifically be added to water-retaining concrete structures. The Xypex C-500 crystalline waterproofing material shall be added to concrete during the mixing cycle. B. Related Sections: 1. Section 03 30 00 - Cast-In-Place Concrete 1.2 REFERENCES A. Applicable Standards: The following standards are referenced herein. 1. American Society for Testing and Materials (ASTM) 2. Army Corps of Engineers (CRD) 3. American Concrete Institute (ACI) 4. NSF International (NSF) 1.3 SYSTEM DESCRIPTION A. Crystalline Waterproofing Additive: Concrete waterproofing system shall be of the crystalline type that chemically controls and permanently fixes a non-soluble crystalline structure throughout the capillary voids of the concrete. The system shall cause the concrete to become sealed against the penetration of liquids from any direction, and shall protect the concrete from deterioration due to harsh environmental conditions. 1.4 SYSTEM PERFORMANCE REQUIREMENTS A. Testing Requirements: Crystalline waterproofing system shall be tested in accordance with the following standards and conditions, and the testing results shall meet or exceed the performance requirements as specified herein. B. Compressive Strength: Independent testing shall be performed according to ASTM C39 "Compressive Strength of Cylindrical Concrete Specimens". Concrete samples containing the crystalline waterproofing additive shall be tested against untreated control sample. At 28 days, the treated samples shall exhibit a minimum of 10% increase in compressive strength over the control sample. CMWC – 400,000 Gallon Upper Tank 07 16 16-2 1.5 SUBMITTALS A. Product Data: Submit product data, including manufacturer's specifications, installation instructions, and general recommendations for waterproofing applications. Also include manufacturer's certification or other data substantiating that products comply with requirements of Contract Documents. B. Test Reports: Submit, for acceptance, complete test reports from approved independent testing laboratories certifying that waterproofing system conforms to performance characteristics and testing requirements specified herein. C. Manufacturer's Certification: Provide certificate signed by manufacturer or manufacturer's representative certifying that the materials to be installed comply in all respects with the requirements of this specification. 1.6 QUALITY ASSURANCE A. Manufacturer Qualifications: Manufacturer to be ISO 9001 registered, and to have no less than 10 years experience in manufacturing the crystalline waterproofing additive for the required work. Manufacturer must be capable of providing field service representation during construction phase. Manufacturers that cannot provide the performance test data specified herein will not be considered for the project. B. Applicator: Installer of crystalline waterproofing additive shall be approved by the manufacturer or manufacturer's representative in writing. C. Pre-Installation Conference: Prior to installation of waterproofing, conduct meeting with ENGINEER, OWNER's representative, applicator (concrete supplier), concrete placer and waterproofing manufacturer's representative to verify and review the following: 1. Project requirements for waterproofing as set out in Contract Document. 2. Manufacturer's product data including application instructions. D. Technical Consultation: The waterproofing manufacturer's representative shall provide technical consultation on waterproofing application. 1.7 DELIVERY, STORAGE AND HANDLING A. Ordering: Comply with manufacturer's ordering instructions and lead time requirements to avoid construction delays. B. Delivery: Deliver packaged waterproofing materials to project site in original undamaged containers, with manufacturer's labels and seals intact. C. Storage: Store waterproofing materials in dry, enclosed location, at temperature and humidity conditions recommended by manufacturer. CMWC – 400,000 Gallon Upper Tank 07 16 16-3 1.8 WARRANTY A. Manufacturer's Warranty: Manufacturer shall provide standard product warranty executed by authorized company official. Term of warranty shall be 15 years from Date of Substantial Completion. B. Labor warranty: If a factory authorized applicator is providing the material and admixing the material at the batch plant, then a labor warranty can be provided for the same period. PART 2 PRODUCTS 2.1 MATERIALS A. Acceptable Manufacturer: Xypex Chemical Corporation 13731 Mayfield Place, Richmond, B.C., Canada V6V 2G9 Tel: 800 961. 4477 or 604 273. 5265 Fax: 604.270.0451 E-mail: info@xypex.com Website: www.xypex.com B. Proprietary Products: Xypex crystalline waterproofing materials as follows: 1. Xypex Admix C-500 Note: Supplemental specifications are available for Xypex Admix C-1000 NF (no fines grade) and Xypex Admix C-2000 NF (no fines grade). C. Substitutions: No substitutions permitted. D. Source Quality: Obtain proprietary crystalline waterproofing products from a single manufacturer. 2.2 DOSAGE A. General: Xypex Admix must be added to concrete mix at time of batching. B. Dosage Rate: Under normal conditions, the C-500 crystalline waterproofing powder shall be added to the concrete mix at a rate of 2% - 3% by weight of portland cement content.. For enhanced chemical protection or meeting specific project requirements, or where the concrete mix design contains higher than 20% fly ash content or includes a Portland cement/slag cement blend, consult with manufacturer or its authorized representative to determine appropriate dosage rates. PART 3 EXECUTION 3.1 INSTALLATION CMWC – 400,000 Gallon Upper Tank 07 16 16-4 A. MANUFACTURER'S INSTRUCTIONS 1. Compliance: Comply with manufacturer's product data regarding installation, including technical bulletins, product catalogue, installation instructions and product packaging labels. 3.2 PROJECT CONDITIONS A. Reinforcement: All reinforcement shall be rib deformed bar in accordance with applicable standards. Exposed concrete decks (joint free) shall contain sufficient reinforcement to minimize thermal movement and control cracking. B. Setting Time and Strength: Some retardation of set may occur when using Xypex Admix. The amount of retardation will depend upon the concrete mix design, the dosage rate of the Admix, temperature of concrete and climatic conditions. Concrete containing Xypex Admix may develop higher ultimate strengths than plain concrete. Conduct trial mixes under project conditions to determine setting time and strength of the concrete. Consult with manufacturer or manufacturer's representative regarding concrete mix design, project conditions and proper dosage rate. C. Weather Conditions: For mixing, transporting and placing concrete under conditions of high temperature or low temperature, follow concrete practices as referred to in ACI 305R- 77 (Hot Weather Concreting) and ACI 306R-78 (Cold Weather Concreting). For flatwork being placed in either hot, dry or windy conditions use of monomolecular film (evaporation retardant) is recommended to control loss of bleed water. 3.3 APPLICATION A. General: Xypex Admix shall be added to the concrete mix at time of batching. Thorough blending of the Xypex Admix throughout the concrete mix is essential for correct performance of the product and, therefore, care should be taken to ensure that a homogeneous mixture is obtained. B. Concrete Batching & Mixing: Procedures for mixing will vary according to type of batch plant operation and equipment. C. Ready Mix Plant - Dry Batching Operation: Add Xypex Admix powder to drum of ready- mix truck, then add 60% - 70% of required water along with 300 - 500 lb. (136 - 227 kg) of aggregate. Mix the materials for 2 - 3 minutes to ensure that the Admix is distributed evenly throughout the mix water. Add balance of materials to the ready-mix truck and mix in accordance with standard batch practices. D. Ready Mix Plant - Central Mix Operation: Mix Xypex Admix with water to form a very thin slurry (e.g. 15 - 20 lb. or 6.75 - 9 kg of powder mixed with 3 gal. or 13.6 l of water). Pour the required amount of material in drum of ready-mix truck. The aggregate, cement and water should be batched and mixed in the plant in accordance with standard practices CMWC – 400,000 Gallon Upper Tank 07 16 16-5 (taking into account the quantity of water that has already been placed in the ready-mix truck). Pour the concrete into the truck and mix for at least 5 minutes to ensure even distribution of the Xypex Admix throughout the concrete. E. Precast Batch Plant - Pan Type Mixer: Add Xypex Admix to the rock and sand, then mix thoroughly for 2 - 3 minutes before adding the cement and water. The total concrete mass should be blended using standard practices. 3.4 CURING A. General: Concrete containing Xypex Admix shall be moist cured in accordance with ACI Reference 308, "Standard Practice for Curing Concrete". B. Curing Compounds: Curing compounds may be used in the event that project requirements or conditions prevent moist curing. Curing compounds shall comply with ASTM C-309. 3.5 PROTECTION A. Protection: Protect installed product and finished surfaces from damage during construction. 3.6 FIELD QUALITY CONTROL A. Examination for Defects: Do not conceal Xypex treated concrete before it has been observed by ENGINEER, waterproofing manufacturer's representative and other designated entities. Concrete shall be examined for structural defects such as faulty construction joints, cold joints and cracks. Such defects to be repaired in accordance with manufacturer's repair procedures. B. Flood Testing for Suspended Slabs: 1. Perform flood test on completed waterproofing installation before placement of other construction. 2. Plug or dam drains and fill area with water to a depth of two inches (50 mm) or to within 0.5 inch (12.5 mm) of top of waterproofing treatment. 3. Let water stand for 24 hours. 4. If leaks are discovered, make repairs and repeat test until no leaks are observed. 3.7 INTERACTION WITH OTHER MATERIALS A. Backfilling: Normal backfilling procedures may be used after concrete has been cured for at least seven days. If backfill takes place within seven days after concrete placement, then backfill material shall be moist so as not to draw moisture from the concrete. In no event shall backfilling take place before concrete has gained sufficient strength to withstand the applied load. B. Grout, Cement Parge Coat, Plaster or Stucco: Because concrete containing Xypex Admix CMWC – 400,000 Gallon Upper Tank 07 16 16-6 forms a relatively smooth surface and the resulting crystalline formation fills the concrete pores thereby reducing suction characteristics of the concrete, it may be necessary to use a suitable bonding agent for proper bonding of cementitious systems. C. Responsibility to Ensure Compatibility: Xypex Admix products are compatible with most admixtures used in the production of quality concrete. However, Xypex Chemical Corporation makes no representations or warranties regarding such compatibility of Xypex Admix products with other additives or admixtures, nor regarding compatibility of the Xypex treated concrete with coatings, plasters, stuccos, tiles or other surface-applied materials. It shall be the responsibility of the concrete contractor to take whatever measures are necessary, including testing, to ensure compatibility of the Xypex Admix with other additives or admixtures being used in the concrete mix, and it shall be the responsibility of the installer of the surface-applied material that is to be applied over the Xypex treated concrete to take whatever measures are necessary, including testing, to ensure acceptance by or adhesion to the Xypex treated concrete. END OF SECTION 07 16 16 CMWC – 400,000 Gallon Upper Tank 08 31 00-1 SECTION 08 31 00 ACCESS HATCHES PART 1 GENERAL SUMMARY This section covers all the work necessary to furnish and install all hatches and appurtenances, complete and in place. REFERENCES Work covered by this Specification shall meet or exceed the provisions of the latest editions of the following Codes and Standards in effect at the time of award of the Contract. The publications are referred to in the text by basic designation only. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM A 123 Standard Specification for Zinc (Hot Dip Galvanized) Coatings on Iron and Steel Products ASTM A 229 Standard Specification for Steel Wire, Quenched and Tempered for Mechanical Springs ASTM A 36 Standard Specification for Carbon Structural Steel ASTM A 653 Standard Specification for Steel Sheet, Zinc Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot Dip Process DESIGN REQUIREMENTS Shoe-box type hatches for water reservoirs shall be designed to handle a live load of 300 psf. CMWC – 400,000 Gallon Upper Tank 08 31 00-2 SUBMITTALS Provide submittals in accordance with Section 01 33 00 – Submittal Procedures. Submit manufacturer’s catalog data and preprinted installation instructions for the hatches. Submit a schedule showing the location of each hatch. Shop drawings shall include details and method of anchorage, details of construction, method of assembling sections, location and installation of hardware, shape and thickness of materials, details of joining and connections. DELIVERY AND STORAGE Hatches shall be delivered to the job site wrapped in a protective covering with the brands and names clearly marked thereon. WARRANTY Manufacturer shall provide to OWNER written guarantee against defects in material or workmanship for a period of five (5) years. Manufacturer must be able to have a representative on site within 48 hours to address any complaint or issues. PART 2 PRODUCTS HATCHES Hatches shall be as noted on the drawings and meet the requirements specified herein. All hardware shall be stainless steel throughout. Each hatch shall be provided with a permanent label showing the manufacturer's name and address and the model number. Hatches shall have stainless steel hold open arm with positive locking. The hold open arm shall be coated red. Hatches shall be Type 316 stainless steel, unless noted otherwise, in corrosive conditions or environments and steel or aluminum as noted in all other areas. Aluminum frames to be cast in concrete shall be mill finished with a bituminous coating applied to the exterior of the frame. Steel hatches and access doors shall be hot-dip galvanized per ASTM A 123 or ASTM A 653. All hardware shall be stainless steel throughout. Hatch hardware, including the hinges, shall be fabricated from Type 316 stainless steel. Hatches shall be provided with an automatic hold-open arm with release handle. Hatches shall be provided with a stainless steel lift assist device. Hatches shall be designed to be watertight and equipped with an EPDM gasket. CMWC – 400,000 Gallon Upper Tank 08 31 00-3 Unless otherwise indicated on the Drawings, a fall protection system shall be provided on all hatches. Fall protection systems shall be grating panels that conform to OSHA 29 CFR 1910.23 requirements. The fall protection grating shall be epoxy coated with an OSHA type safety orange color. Safety nets or safety grates fabricated from fiberglass or fiberglass blend are not acceptable. Hatches for water reservoirs shall have the interior and exterior handles eliminated and shall have a concealed padlock hasp. The hasp shall be protected from tampering on at least three (3) sides. Hatches for drinking water reservoirs shall be Utah State Division of Drinking Water compliant and have a close-fitting shoebox type cover which extends down around the frame at least two inches with a gasket between the cover and the frame. The three non- hinged sides of the hatch shall be provided with adjustable cam levers to tighten the cover against the gasket to ensure the hatch is water tight. Hinge fasteners must be completely concealed to inhibit tampering. Manufacturer’s shall be East Jordan, or approved equal. PART 3 EXECUTION INSTALLATION Hatches shall be installed in accordance with the approved detailed shop drawings and manufacturer's instructions. Anchors and inserts for guides, brackets, hardware, and other accessories shall be accurately located. Upon completion, hatches shall be weather tight and shall be free from warp, twist, or distortion. Hatches shall be lubricated, properly adjusted, and demonstrated to operate freely. All surfaces that come in contact with the concrete shall have a protective coating. Unless otherwise indicated on the drawings, a 1/2 inch PVC Schedule 80 drain pipe shall be provided from all roof or vault hatches extended to drain to the ground surface to a location that will not promote surface ponding of the drain water. END OF SECTION 08 31 00 CMWC – 400,000 Gallon Upper Tank 31 05 19-1 SECTION 31 05 19 GEOSYNTHETICS PART 1 GENERAL SUMMARY This section covers the manufacturing and installation of geosynthetics. REFERENCES The latest edition of the following publications form a part of this specification to the extent referenced. The publications are referred to in the text to by basic designation only. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) B16.1/ASTM D 751 Standard Test Methods for Coated Fabrics ASTM D 1777 Standard Test Method for Thickness of Textile Materials ASTM D 3786 Standard Test Method for Bursting Strength of Textile Fabrics - Diaphragm Bursting Strength Tester Method ASTM D 4533 Standard Test Method for Trapezoid Tearing Strength of Geotextiles ASTM D 4632 Standard Test Method for Grab Breaking Load and Elongation of Geotextiles ASTM D 4751 Standard Test Method for Determining Apparent Opening Size of a Geotextile ASTM D 4833 Standard Test Method for Index Puncture Resistance of Geomembranes and Related Products ASTM D 5034 Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test) ASTM D 5035 Standard Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method) ASTM D 5261 Standard Test Method for Measuring Mass per Unit Area of Geotextiles SUBMITTALS Provide submittals in accordance with Section 01 30 00 – Submittal Procedures. Quality Control Certificates shall be provided at a minimum frequency of one (1) per every hundred thousand (100,000) square feet of geosynthetics produced consecutively, and which is supplied to the project. These certificates shall be supplied only for the individual rolls of geosynthetics sampled and tested by the Manufacturer or his representative. An individual Quality Control Certificate shall be provided for each roll of geosynthetics provided to the project, which was not produced consecutively within the hundred thousand (100,000) square foot lot. Quality Control Certificates shall be CMWC – 400,000 Gallon Upper Tank 31 05 19-2 submitted two (2) weeks prior to installation of geosynthetics and shall state that the geosynthetics meets the requirements of these specifications for: Mass per Unit Area Grab Tensile Strength Mullen Burst Strength Equivalent Opening Size Geosynthetics shall not be accepted and/or incorporated into the project without the approved quality control documentation. Certification stating that all geosynthetics is furnished by one manufacturer shall be submitted two (2) weeks prior to installation. DELIVERY, STORAGE AND HANDLING Storage and handling of the geosynthetics shall be the responsibility of CONTRACTOR. During shipment, handling and storage, the geosynthetics shall be protected from ultraviolet light exposure, precipitation, or other inundation, mud, dirt, dust, puncture, cutting or any other damage or deleterious conditions. To that effect, geosynthetics rolls shall be shipped and stored in relatively opaque and watertight wrappings. An opaque tarp shall be placed over all rolls where the outer wraps are removed or damaged and where the geotextile is exposed. CONTRACTOR shall be responsible for the replacement of damaged or unacceptable materials at no cost to OWNER. Storage of Materials: A storage area shall be provided on site by OWNER. The storage of geosynthetic materials shall be the responsibility of CONTRACTOR until the completed installation is accepted by ENGINEER. Damaged Geosynthetics: Damaged geosynthetic materials shall be repaired, if possible, in accordance with these specifications, or shall be replaced at no additional cost to OWNER. PART 2 PRODUCTS GEOSYNTHETICS (FILTER FABRIC) The geosynthetics shall be 10-ounce (or heavier) non-woven filter fabric. Geosynthetics shall be provided in rolls. Each roll of geosynthetics shall be externally labeled or tagged to provide product identification sufficient for field determination as well as inventory and quality control purposes. Each roll shall be labeled with the name of manufacturer, roll number, physical dimensions (length and width) and the material type. Any roll of geosynthetics from which the labeling has been removed or has become illegible, shall not be used, but shall be removed from the site and replaced at the expense of CONTRACTOR. CMWC – 400,000 Gallon Upper Tank 31 05 19-3 The geosynthetics shall be sampled, tested, and certified by the manufacturer for the following properties: MATERIAL PROPERTIES FOR NON-WOVEN GEOTEXTILE FILTER FABRIC Property Specification ASTM Test Method Mass per Unit Area (min) 10.0 oz./S.Y. D-5261 Grab Tensile Strength (min) 250 lbs. D-4632 Elongation at Break 50 % D-4632 Tear Strength (min) 100 lbs D-4533 Apparent Opening Size (maximum U.S. Sieve size) 100 mesh D-4751 Filter Fabric shall be Mirafi 1100N by TenCate, 250NW by U.S. Fabrics, or approved equal. BIODEGRADABLE EROSION CONTROL BLANKET Biodegradable erosion control blanket shall be Curlex I as manufactured by American Excelsior Company, or approved equal. Staples shall be a minimum 4 in biodegradable E-Staple®, as provided by American Excelsior Company, or 6 in wire for cohesive soils and 6 in biodegradable E-Staple®, as provided by American Excelsior Company, or 8 in wire for non-cohesive soils. All staples shall have a Ushaped top. PART 3 EXECUTION DEPLOYMENT – FILTER FABRIC Prior to deployment, CONTRACTOR shall inspect each roll of geosynthetics to verify that the roll has a valid Quality Control Certificate and that has been previously approved by ENGINEER. Adjacent rolls shall be joined by overlapping the edges a minimum of twelve (12) inches. The overlap shall be glued, sewn or otherwise fastened or secured at intervals no greater than two feet along a line through the midpoint of the overlap. Additional fasteners shall be installed as necessary to prevent slippage of the geosynthetics regardless of location. CMWC – 400,000 Gallon Upper Tank 31 05 19-4 CONTRACTOR shall visually inspect the geosynthetics during deployment for holes, tears or improperly formed geosynthetics. Defective areas shall be repaired or removed and replaced by CONTRACTOR at no additional cost to OWNER. Smoking shall not be permitted on the geosynthetics. CONTRACTOR shall be responsible to provide adequate loading (e.g., sand bags or similar items that will not damage the underlying geosynthetic) to prevent movement of the geosynthetics. Any damage to the geosynthetics shall be repaired at CONTRACTOR’s expense. The geosynthetics shall not be exposed to the sun and elements for more than 72 hours unless the filter fabric has ultraviolet inhibitors. Fabric with ultraviolet inhibitors shall not be exposed for a period in excess of the manufacturer’s recommendations, in which case manufacturer shall provide prior to product delivery. Any damage to the geosynthetics during installation or any fabric that has been exposed to the sun or elements for longer than the 72 hours, or as specified by the manufacturer, shall be replaced by CONTRACTOR at no additional cost to OWNER. CONTRACTOR shall be responsible to observe placement of geosynthetics. CONTRACTOR shall provide a daily inventory of all geosynthetics deployed to ENGINEER. REPAIRS – FILTER FABRIC Any holes, tears or defective areas in the geosynthetics shall be repaired by patching with same type of geosynthetics. The patch shall extend a minimum of twelve (12) inches in all directions beyond the area to be repaired. The patch shall be secured in place by gluing, sewing, or securing the fabric as per these specifications. GENERAL – EROSION CONTROL BLANKET Contractor shall coordinate with the blanket supplier for a qualified representative to be present at the job site at the start of installation to provide technical assistance as needed. Contractor shall remain solely responsible for the quality of installation. Before placing erosion control blanket, the Contractor shall certify that the subgrade has been properly compacted, graded smooth, has no depressions, voids, soft or uncompacted areas, is free from obstructions such as tree roots, protruding stones or other foreign matter, and is seeded and fertilized according to project specifications. The Contractor shall not proceed until all unsatisfactory conditions have been remedied. By beginning construction, the Contractor signifies that the preceding work is in conformance with this specification. Contractor shall fine grade the subgrade by hand dressing where necessary to remove local deviations. No vehicular traffic shall be permitted directly on the erosion control blanket. CMWC – 400,000 Gallon Upper Tank 31 05 19-5 INSTALLATION – EROSION CONTROL BLANKET Erosion control blanket shall be installed as directed by the owner’s representative in accordance with manufacturer's Installation Guidelines, Staple Pattern Guides, and CAD details. The extent of erosion control blanket shall be as shown on the project drawings. Erosion control blanket shall be orientated in vertical strips and anchored with staples, as identified in the Staple Pattern Guide. Adjacent strips shall be abutted or overlapped to allow for installation of a common row of staples that anchor through the nettings of both blankets. Horizontal joints between erosion control blankets shall be sufficiently overlapped with the uphill end on top for a common row of staples so that the staples anchor through the nettings of both blankets. Where exposed to overland sheet flow, a trench shall be located at the uphill termination. Erosion control blanket shall be stapled to the bottom of the trench. The trench shall be backfilled and compacted. Where feasible, the uphill end of the blanket shall be extended three feet over the crest of the slope. END OF SECTION 31 05 19 CMWC – 400,000 Gallon Upper Tank 31 05 21-1 SECTION 31 05 21 POLYVINYL CHLORIDE (PVC) LINER PART 1 GENERAL SUMMARY This section covers the manufacturing and installation of Polyvinyl Chloride Plastic (PVC) liners. REFERENCES The latest edition of the following publications form a part of this specification to the extent referenced. The publications are referred to in the text to by basic designation only. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 751 Standard Test Method for Coated Plastics ASTM D 792 Standard Test Method for Specific Gravity and Density of Plastics by Displacement ASTM D 882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting ASTM D1004 Test Method for Initial Tear Resistance of Plastic Film and Sheeting ASTM D1203 Standard Test Method for Volatile Loss from Plastics using Activated Carbon Methods. ASTM D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature ASTM D883 Standard Terminology Relating to Plastics ASTM D1239 Standard Test Method for Resistance of Plastic Films to Extraction of Chemicals ASTM D1709 Standard Test Method for Impact Resistance of Plastic Film ASTM D2124 Standard Test Method for Analysis of Components in PVC Compounds ASTM D5199 Standard Test Method for Measuring the Nominal Thickness of Liners ASTM G160 Standard Practice for Evaluating Microbial Susceptibility SUBMITTALS Provide submittals in accordance with Section 01 30 00 – Submittal Procedures. FABRICATION, STORAGE AND HANDLING Storage and handling of the geosynthetics shall be the responsibility of CONTRACTOR. CMWC – 400,000 Gallon Upper Tank 31 05 21-2 The finished product shall be supplied as prefabricated panels designed for the project to minimize field seaming. Panel sizes may be as large as 25,000 square feet; however, dimensions will vary for each individual project. A general guideline is prefabricated panels will not exceed 5,000 pounds due to lifting capabilities. Storage of Materials: A storage area shall be provided on site by OWNER. The storage of geosynthetic materials shall be the responsibility of CONTRACTOR until the completed installation is accepted by ENGINEER. The liner material shall be uniform in color, thickness and surface texture. All roll goods will be visually inspected for pinholes, blisters and manufacturing defects. The FML shall comprise material manufactured of new, top quality products designed and manufactured specifically for the purpose of an impermeable liquid containment as applied to the specific project application. All factory seams will be fully bonded as required to achieve values as specified. Factory seam widths will be a maximum of 1” wide with a tolerance to .5” wide. If a faulty seam is detected, the area will be repaired by a patch that will extend beyond the defect a minimum of 2 inches in all directions. All finished panels will be given prominent, indelible identifying markings for field deployment. At setup, the operator will fabricate a test seam to verify seam strength requirements. These samples will be tested in-house per ASTM procedures for peel and sheer. For PVC, production will not begin until the test values meet or exceed project / ASTM D7408. During production, a test seam will be constructed at the beginning of each panel and or during a shift change. All factory seams to be visually inspected at 3 points during the fabrication process. Upon completion of fabrication; all pertinent documentation such as production / testing logs and manufacturer material testing certifications will be available to the Owner. PART 2 PRODUCTS PVC Liner The PVC liner shall be sampled, tested, and certified by the manufacturer for the following properties: CMWC – 400,000 Gallon Upper Tank 31 05 21-3 PART 3 EXECUTION LINER INSTALLATION PROCEDURES The fabricated liner panels are double accordion folded and banded on a wooden pallet. Prior to shipping, the panels are covered with a plastic water repellent stretch wrap. Upon arrival at the project, the product is to be unloaded with a forklift type piece of equipment with a 5,000 pound minimum capacity. The fabricated panels are to be stored in a centrally located area close to the job-site for field deployment. The pallets are not to be stacked as they are unloaded. In the event of long-term storage on-site, it may be necessary to cover the product with an opaque, water- proof material such as visqueon to protect from exposure. Liner panels will be installed per the approved shop drawing submitted to the Owner. The construction manager will determine the panel lay-out sequence to facilitate and expedite the installation process. Over-all field coordination is the key so our scope of work will not conflict or interfere with other operations and schedules. CMWC – 400,000 Gallon Upper Tank 31 05 21-4 Prior to the seaming operation, the construction manager will review seaming materials and procedures. Safety equipment will be distributed and discussed. Sample seams will be constructed to verify seam quality. All surfaces that receive geosynthetics must be complete prior to liner placement. The construction manager will maintain a daily log that outlines field conditions, production, etc. Copies of this log will be available to the Owner and General contractor upon completion of the project. Once the panels are placed, seaming will begin. A general rule of thumb is, only lay out the number of panels that can be seamed together on the same day. However, it must be noted that adverse weather conditions may not allow this on a given day. Panel installation will be performed only under reasonably calm conditions with ambient temperatures in excess of 40 degrees F. Liner installation is possible in colder climates with the aid of heaters, however production is considerably slower. Liner installation should not be attempted during precipitation. The liner installation will not commence until the substrate has been inspected and approved by an LCS representative. The G\C and Owner will be notified immediately in the event of a sub-standard condition that may exist. As a general guideline; the installed geomembrane liner is a direct reflection of the sub grade it is placed upon. Surfaces to be lined shall be well compacted, smooth and free of all sharp, angular rocks, vegetation and stubble. It shall be the responsibility of the general contractor to re-prep and maintain the sub grade in the event of rain. Anchor trenching must be complete prior to liner placement. Sample seams will be made on a daily basis or if on-site conditions change drastically to establish a proper film bond tear. The seaming crews will overlap the material ±6” and construct a minimum (2” wide fully bonded seam if machine welded) without wrinkles or voids. If wrinkles occur (fish-mouths), they will be cut and patched accordingly. The patch will extend beyond the problem area a minimum of 4” in all directions. The field seams will be tested by the air-lance method per ASTM Method D4437. This test consists of directing a flow of pressurized air, regulated at 40 - 50 psi through a 3\16 inch orifice at the field seam interface. The air lance wand shall be held 4” away and perpendicular to the edge of the seam. Where visual or audible signs occur, which indicate unbonded areas, the area will be repaired by our technicians. At the conclusion of the project, the superintendent will conduct a final walk through with all parties involved. A certification will be issued stating that all work performed is in accordance with project specifications and in compliance with all industry standards and guidelines. CMWC – 400,000 Gallon Upper Tank 31 05 21-5 REPAIRS Any holes, tears or defective areas in the liner shall be repaired manufacturer recommendations. END OF SECTION 31 05 21 CMWC – 400,000 Gallon Upper Tank 31 11 00-1 SECTION 31 11 00 CLEARING, GRUBBING, AND STRIPPING PART 1 GENERAL 1.1 SUMMARY A. This work shall consist of removing and disposing of all trees; shrubs; brush; stumps; windfalls; roots; and other vegetation, including dead and decayed matter; and debris that exist within the designated construction limits, borrow areas, and soil stockpile areas and which are not specifically designated to remain. 1.2 DEFINITIONS A. Clearing: Clearing operations shall consist of cutting, removing and disposing of trees, shrubs, bushes, windfalls and other vegetation within the construction limits, borrow areas and soil stockpile areas. All brush shall be cut off within six inches of the ground surface. B. Grubbing: Grubbing operations shall consist of removing and disposing of stumps, roots, debris deleterious materials, and other remains (such as organic and metallic materials) which if left in place would interfere with proper performance or completion of the contemplated work, would impair its subsequent use or form obstructions therein. Organic material from clearing or grubbing operations shall not be incorporated in fill or backfill. C. Stripping: Stripping operations shall consist of removing all soil material containing sod, grass, or other vegetation and topsoil to a minimum depth of six (6) inches from all areas that will receive fill or over all trenches in field or yard areas. PART 2 PRODUCTS (not applicable) PART 3 EXECUTION 3.1 CLEARING A. All trees, stumps, shrubs, bushes, windfalls and other vegetation (except such trees and vegetation as may be indicated or directed by ENGINEER to be left standing) shall be cut off to within six inches of the ground surface and shall be removed from the construction limits. Trees and vegetation to be left standing shall be protected from damage incident to clearing, grubbing, and construction operations by such means as the circumstances require. CMWC – 400,000 Gallon Upper Tank 31 11 00-2 3.2 GRUBBING A. All stumps, roots, debris, deleterious and other organic or metallic materials not suitable for foundations shall be removed completely from the construction limits, borrow areas and soil stockpile areas. Unless otherwise permitted by ENGINEER, stumps shall be removed completely. If any stumps are permitted to remain, they shall be cut off not more than six inches above the ground. 3.3 STRIPPING A. Soil material containing sod, grass, or other vegetation and topsoil shall be removed to a minimum depth of six (6) inches from all areas to receive fill from the area within lines 5 feet outside all foundation walls, over all trenches, and from beneath pavement and curb and gutter areas. The stripped material shall be deposited in such locations as are acceptable to ENGINEER. Topsoil shall be placed over designated areas to be landscaped, and over all trench areas (outside of paved areas). B. All areas to be sodded shall have a minimum thickness of 3 inches (or thicker if required elsewhere in these documents or on the drawings) of topsoil. 3.4 DISPOSAL A. No open burning of combustible materials will be allowed. B. All trees, timber, stumps, roots, debris, shrubs, bushes, and other vegetation removed during the clearing and grubbing operations shall be removed from the project site and disposed of by CONTRACTOR subject to specific regulations imposed by laws and ordinances and in a manner that will not create a public nuisance nor result in unsightly conditions. CONTRACTOR shall assume full responsibility for acceptable disposition of the material as well as for any damages resulting from his disposal operations. END OF SECTION CMWC – 400,000 Gallon Upper Tank 31 22 00-1 SECTION 31 22 00 SITE GRADING PART 1 GENERAL SUMMARY This work consists of site grading and related activities REFERENCES The latest edition of the following publications form a part of these specifications to the extent referenced. The publications are referred to in the text by basic designation only. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 1557 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3) ASTM D 2487 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System) PART 2 PRODUCTS FILL MATERIAL Material shall be free from frozen lumps, roots, trash, lumber or organic material. Suitability of material in accordance with these criteria will be as determined by ENGINEER. Fill or backfill materials associated with structures shall be in accordance with the Section 31 23 23 – Excavation and Backfill for Structures. PART 3 EXECUTION GENERAL Grading shall produce uniform grades or slopes between spot elevations or contours shown. Areas of construction activity shall be left in condition of uniform grade, blending into pre-existing contours and concealing, as much as possible, evidence of construction activity by back dragging or raking to conceal tire marks. Paving or landscaping shall not be performed until the subgrade is acceptable to OWNER. Unless otherwise directed by OWNER, all excess excavated materials shall be removed from the site and disposed of by CONTRACTOR. CONTRACTOR shall restore stockpile area to pre-existing condition. CMWC – 400,000 Gallon Upper Tank 31 22 00-2 SITE PREPARATION Prior to placement of grading fill, unsuitable fill, organics, topsoil, debris and other deleterious material shall be removed. Care shall be taken not to disturb the natural soil to remain in the proposed building, exterior flatwork and pavement areas. The fill to remain below roadways, parking areas, or concrete flatwork areas shall be compacted and proof rolled to identify soft areas prior to placing grading fill or construction of structures. Soft areas shall be removed and replaced with properly compacted non-expansive granular soil meeting the requirements of 2.1.B of this Section.. Fill shall include the placement of materials to raise the existing grade to the established elevations indicated and the construction of driving surfaces. Fill material shall be placed in no more than 8-inch loose lifts for heavy equipment, and 6-inch loose lifts for hand operated equipment. Fill material shall be placed and compacted at a moisture content within 2% of optimum moisture content. All fill material shall be placed and compacted to 90% minimum Modified Proctor Density as determined by ASTM D1557. Where the moisture content is not suitable and/or sufficient compaction has not been obtained, the fill shall be reconditioned to an approved moisture content and re- compacted to the minimum required compaction, unless recommended otherwise by the Soils Testing Agency, prior to placing any additional fill material. Unless otherwise specified, CONTRACTOR shall be responsible for arranging for the placing and compacting of approved fill material in accordance with these Specifications. If the Soils Testing Agency should determine that CONTRACTOR is failing to meet the minimum requirements, CONTRACTOR shall stop operations and make adjustments as necessary to produce a satisfactorily compacted fill at no additional cost to OWNER. On-site stripped topsoil shall be placed after fill has been verified. Topsoil shall be placed over all disturbed areas or as directed by the OWNER. GRADING The final grade of all completed areas shall be between plus and minus one-tenth (± 0.1) of a foot from the grade designated on the drawings. END OF SECTION CMWC – 400,000 Gallon Upper Tank 31 23 23-1 SECTION 31 23 23 EXCAVATION AND BACKFILL FOR STRUCTURES PART 1 GENERAL 1.1 DESCRIPTION A. This section covers excavating, backfilling, and compacting of disturbed areas for structures as directed by ENGINEER. 1.2 GEOTECHNICAL REPORT A. Refer to the geotechnical report by GeoStrata for additional requirements. 1.3 REFERENCES A. The latest edition of the following publications form a part of this specifications to the extent referred. The publication are referred to in the text by basic designation only. B. AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO) 1. T 88 Particle Size Analysis of Soils 2. T 180 Moisture-Density Relations of Soils Using a 10-lb. (4.54 kg) Rammer and an 18-in (457 mm) Drop 3. T 191 Density of Soil In-Place by the Sand-Cone Method 4. T 205 Density of Soil In-Place by the Rubber-Balloon Method 5. T 238 Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) 6. T 239 Moisture Content of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) C. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) 1. D 422 Particle-Size Analysis of Soils 2. D 698 Test Method of Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 5.5 lb. (2.5-kg) Rammer and 12-in. (305-mm) Drop 3. D 1556 Density of Soil in Place by the Sand-Cone method 4. D 1557 Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10-lb (4.54-kg) Rammer and 18-in. (457-mm) Drop 5. D 2487 Classification of Soils for Engineering Purposes 6. D 2922 Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) 7. D 3017 Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth) CMWC – 400,000 Gallon Upper Tank 31 23 23-2 D. The latest Edition of the Utah Department of Transportation Standard Specification for Road and Bridge Construction. E. The latest Edition of the American Public Works Association (APWA) and Associated General Contractors of America Standard Plans and Standard Specifications. 1.4 SUBMITTALS A. The following shall be submitted in accordance with Section 01 33 00 Submittal Procedures: 1. Submit gradations and proctors for structural fill materials and backfill materials. PART 2 PRODUCTS 2.1 STRUCTURAL FILL A. See Geotechnical report from Geostrata dated May 10, 2022 for requirements. PART 3 EXECUTION 3.1 EXCAVATION A. Excavation shall be performed to the lines and grades indicated. Excavated material not required or not satisfactory for backfill shall be removed from the site. B. Excavations shall be braced and supported as needed to prevent the ground adjacent to the excavation from sliding or settling. Slides shall be promptly removed and corrected by the Contractor. 3.2 PREPARATION A. See Geotechnical report from Geostrata dated May 10, 2022 for requirements. 3.3 BACKFILL A. Backfill material shall not be placed against concrete structures that have not been properly cured. No backfill material shall be placed until concrete until the compressible strength is 85 percent of the specified strength. B. Backfill material shall be placed in no more than 6-inch loose lifts for compaction by hand operated machine compactors, and 8 inches loose lifts for other than hand operated machines. CMWC – 400,000 Gallon Upper Tank 31 23 23-3 C. Backfill material shall be placed and compacted to at least 90 percent of maximum dry density at a moisture content within 2 percent of optimum moisture content in accordance with ASTM D-1557. D. Where the moisture content is not suitable and/or sufficient compaction has not been obtained, the fill shall be reconditioned to an approved moisture content and re-compacted to the minimum required compaction prior to placing any additional fill material. E. The CONTRACTOR shall be responsible for arranging for the placing and compacting of approved fill material in accordance with these Specifications. If it is determined that the CONTRACTOR is failing to meet the minimum requirements, the CONTRACTOR shall stop operations and make adjustments as necessary to produce a satisfactorily compacted fill at no additional cost to the OWNER. F. Sufficient personnel, equipment, sumps or other means should be provided to maintain the site in an acceptable dry condition for the duration of this contract. G. Excavations shall be so braced and supported as needed to prevent the ground, adjacent to the excavation, from sliding or settling. Localized slides or settlements shall be promptly removed and corrected by CONTRACTOR. 3.4 FINISHED GRADE A. The finished subgrade and grade of the fill shall not vary more than 0.05 feet from the established grades and cross-sections shown on the Drawings. 3.5 COMPACTION TESTS A. Compaction Quality Control Testing shall be the provided and paid for in accordance with Section 01 45 00. B. It shall be the responsibility of the CONTRACTOR to accomplish the specified compaction for backfill, structural fill, Untreated Base Course and other earthwork. It shall be the responsibility of the CONTRACTOR to control his operations by performing any additional tests necessary to verify and confirm that CONTRACTOR has complied, and is complying at all times, with the requirements of these Specifications concerning compaction, control, and testing. 1. Testing of Backfill Materials a) Characteristics of backfill materials shall be determined in accordance with the requirements of Section 01 45 00. CMWC – 400,000 Gallon Upper Tank 31 23 23-4 b) The CONTRACTOR shall demonstrate the adequacy of compaction equipment and procedures before exceeding any of the following amounts of earthwork quantities: (i) One (1) test per 1.5 feet of backfill thickness placed per structure. c) Until the specified degree of compaction on the previously specified amounts of earthwork is achieved, no additional earthwork of the same kind shall be performed. d) After satisfactory conclusion of the initial compaction demonstration and at any time during construction, earthwork which does not comply with the specified degree of compaction shall not exceed the previously specified quantities. e) Quality Control tests may be made by the ENGINEER to verify that compaction is meeting the requirements previously specified at no cost to the CONTRACTOR. If the ENGINEER requires retesting of backfill, CONTRACTOR shall remove the overburden above the level at which the ENGINEER wishes to test and shall backfill and recompact the excavation after the test is complete at no additional cost to OWNER. f) If compaction fails to meet the specified requirements, the CONTRACTOR shall remove and replace the backfill at proper density or shall bring the density up to specified level by other means acceptable to the ENGINEER. Subsequent tests required to confirm and verify that the reconstructed backfill has been brought up to specified density shall be paid in accordance with Section 01 45 00. The confirmation tests shall be performed in a manner acceptable to the ENGINEER. Frequency of confirmation tests for remedial work shall be double that amount specified for initial confirmation tests. 2. Field Density Tests a) Tests shall be performed in sufficient numbers to meet the requirements of Section 01 45 00 and to ensure that the specified density is being obtained. C. Field density tests shall be made in accordance with ASTM D-1557 and ASTM D-2922. - END OF SECTION - CMWC – 400,000 Gallon Upper Tank 31 41 00 - 1 SECTION 31 41 00 SHORING PART 1 - GENERAL 1.01 DESCRIPTION Properly support all excavations to protect life, property and the work. 1.02 STANDARDS Occupational Safety and Health Administration (OSHA) regulations, Federal Register Vol. 37, No. 243, Sub-part P., Sec. 1926.652. PART 2 - MATERIALS Contractor to be responsible for shoring or bracing system used. Materials used shall have adequate strength to support excavations. PART 3 - EXECUTION 3.01 INSTALLATION A. Provide and install, wherever required for protection of life and/or property, temporary or permanent sheeting, shoring and bracing as required to support the sides of a trench or a temporary nonconforming vertical slope to prevent any dangerous movement, subsidence inflicting damage, or delay. Comply with all safety requirements. B. Provide and install transverse bulkheads, solid sheeted or interlocking sheeting, driven deep enough below grade to prevent the inflow of material from outside of trench if required to preserve a suitable grading for the pipe of structural excavation. C. Remove all timber and sheeting from excavations or trenching before backfilling or cut sheeting off 2-feet below final grade if allowed by Engineer. D. Shoring and or bracing shall be used where excavations may damage existing improvements. Where the depth of the excavation or the conditions encountered during construction may cause harm or damage to existing facilities such as fences, buildings, landscaping, etc., the Contractor shall take whatever action is necessary to prevent damage to the existing improvements. Where existing improvements are damaged or affected as a result of the Contractor’s work, the Contractor shall replace or repair such damage at no additional cost to the Owner. END OF SECTION CMWC – 400,000 Gallon Upper Tank 32 11 23-1 SECTION 32 11 23 ROAD BASE - UNTREATED BASE COURSE PART 1 GENERAL 1.1 DESCRIPTION A. This work consists of the placement of Sub-Base and Untreated Base Course material as indicated on the Drawings. 1.2 REFERENCES A. The latest edition of the following publication forms a part of this specification to the extent referenced. The publication is referred to in the text by basic designation only. AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO) AASHTO T 88- Particle Size Analysis of Soils AASHTO T 180- Moisture-Density Relations of Soils Using a 10-lb. (4.54 kg) Rammer and an 18-in (457 mm) Drop AASHTO T 191- Density of Soil In-Place by the Sand-Cone Method AASHTO T 205- Density of Soil In-Place by the Rubber-Balloon Method AASHTO T 238- Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) AASHTO T 239- Moisture Content of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 422- Particle-Size Analysis of Soils ASTM D 698- Test Method of Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 5.5 lb. (2.5-kg) Rammer and 12-in. (305-mm) Drop ASTM D 1556- Density of Soil in Place by the Sand-Cone method ASTM D 1557- Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10-lb (4.54-kg) Rammer and 18-in. (457-mm) Drop ASTM D 2487- Classification of Soils for Engineering Purposes ASTM D 2922- Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) ASTM D 3017- Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth) B. The latest edition of the Utah Department of Transportation Standard Specification for Road and Bridge Construction (UDOT). CMWC – 400,000 Gallon Upper Tank 32 11 23-2 1.3 SUBMITTALS A. Untreated Base Course (UDOT Grade 1 ½). PART 2 PRODUCTS 2.1 MATERIALS A. Untreated Base Course Materials shall meet the APWA Specifications for Grade 1 or Grade 1 ½ as shown in Table 1. TABLE 1 SIEVE SIZE GRADE 1 ½ GRADATION (PERCENT PASSING) 1 1/2 inch 1 inch 3/4 inch 1/2 inch 3/8 inch No. 4 No. 16 No. 200 100 90-100 70 - 85 65-80 55 - 75 40 - 65 25 - 40 7 - 11 PART 3 EXECUTION 3.1 SUBGRADE PREPARATION A. Prior to placement of untreated base course materials, the foundation area to receive untreated base course materials shall be scarified to a minimum depth of 8-inches and recompacted to 95% minimum laboratory density as determined by ASTM D-1557. 3.2 UNTREATED BASE COURSE MATERIAL PLACEMENT A. No Untreated Base Course material shall be placed on sub-grade materials until the sub-grade has been checked and accepted by ENGINEER. B. Road base material placed on driving surfaces shall be compacted to a minimum density of 96% in accordance with ASTM D-1557 to provide a uniform graded smooth surface. CMWC – 400,000 Gallon Upper Tank 32 11 23-3 C. Untreated Base Course material shall be placed to a minimum thickness as shown on the drawings. 3.3 FIELD QUALITY CONTROL A. CONTRACTOR shall be responsible for directing proper placement of all road base materials. CONTRACTOR shall be responsible for the stability of the road base materials during placement and shall replace any portions which have become displaced due to careless or negligent work on the part of CONTRACTOR, or to damage resulting from natural causes, such as storms. B. Whenever the work areas to receive Sub-Base and/or Untreated Base Course material are covered with snow, the snow must be removed prior to placing the road base and/or Untreated Base Course, and deposited outside the immediate construction areas at CONTRACTOR's expense. - END OF SECTION - CMWC – 400,000 Gallon Upper Tank 32 90 00- 1 SECTION 32 90 00 LANDSCAPING PART 1 GENERAL 1.1 SUMMARY A. Section includes requirements for seeding. 1.2 SUBMITTALS A. Seed Mix. 1.3 DELIVERY, STORAGE AND HANDLING A. Schedule deliveries to coincide with topsoil operations and laying. Keep storage at job site to minimum without causing delays. 1.4 WARRANTY A. Provide a full warranty for shrubs, trees, and ground covers to survive transplanting and remain in healthy condition for one complete grown season from date of substantial completion. PART 2 PRODUCTS 2.1 MATERIALS A. SEED MIX: The seed mix shall favor native species and must be certified to contain no invasive or noxious weed species. Seed mix shall be approved by Engineer prior to use. PART 3 EXECUTION 3.1 PREPARATION A. Protection: 1. Take care and preparation to avoid conditions which will create hazards or damage existing plant materials to be retained; post signs or barriers as required. 2. Provide adequate means for protection from damage through excessive erosion, flooding, heavy rains, etc. Repair or replace damaged areas. 3. Keep site well drained and landscape excavations dry. CMWC – 400,000 Gallon Upper Tank 32 90 00- 2 B. Site Preparation: 1. Conduct final grading according to plans and specifications. Ensure that all surface drainage is positive and directed to swales and/or collection areas prescribed on grading plan and that no water is allowed to stand in landscaped areas. 2. Provide a smooth, gradual transition at base and crown of slopes or berms to prevent scalping or uneven mowing of turf and to ensure adequate site drainage. 3. Loosen area 4 inches deep, dampen thoroughly, and cultivate to properly break up clods and lumps. 4. After cultivation, rake area to remove clods, rocks, weeds, roots, and debris. Perform grading and shaping refinements to bring surface to true uniform planes free from irregularities and to provide drainage and proper slope to catch basins and swales. 5. After preparation of areas and with top soil in semi-dry condition, roll planting areas in two directions at approximately right angles with water ballast roller weighing 100 to 300 lbs. according to soil type. 3.2 INSTALLATION A. Seed: 1. The seed mix shall be applied at a rate of 37 pounds per acre by the preferred drilled or hydroseed method. Broadcast method approved on slopes steeper than 3:1. Do not let seed installation be subject to damage by climatic conditions. B. Temporary Erosion Control Blanket: 1. Install erosion control blanket on all seeded slopes in excess of 3H:1V. 3.3 CLEANING AND PROTECTION A. Immediately clean up any soil or debris spilled onto pavement and dispose of all deleterious materials. - END OF SECTION - CMWC – 400,000 Gallon Upper Tank 33 05 20-1 SECTION 33 05 20 TRENCHING PART 1 GENERAL 1.1 SUMMARY A. Section Includes 1. Excavating trenches for utilities and utility structures. 2. Backfill and compaction for utility trenches. 1.2 REFERENCE STANDARDS A. American Association of State Highway and Transportation Officials (AASHTO): 1. AASHTO M145 - Standard Specification for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes. 2. AASHTO T99 - Standard Method of Test for Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and a 305-mm (12-in.) Drop. 3. AASHTO T180 - Standard Specification for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop. B. Occupational Safety and Health Administration (OSHA). 1.3 DEFINITIONS A. Bedding: The zone in the utility trench excavation which supports, surrounds, and extends to 12 inches above the top of the pipe barrel. Specifically, 6 inches below the bottom, 12 inches above the top of the pipe, and 9 inches laterally beyond both sides of the pipe. B. Backfill: Material placed after utilities and bedding. C. Coarse Grained Soil: Soils with more than 50 percent retained on No. 200 sieve. D. Fine Grained Soil: Soils with 50 percent or more passing No. 200 sieve. E. Soil Classification: ASTM D2487 and AASHTO M145. F. Trench Excavation Classification: Will be based on soil type and equipment required. 1. Trench Excavation: Excavation of unclassified soils. Use minimum of 330 trackhoe with ripper shank or equal equipment. Contractor may elect to use larger equipment, but electing to use larger equipment will not change classification of excavation. 2. Rock Trench Excavation: Excavation of solid rock which requires using excavator with rock hammer or use of explosives, and cannot be removed with minimum equipment required for unclassified soils noted above. CMWC – 400,000 Gallon Upper Tank 33 05 20-2 G. Utility: Any buried pipe, duct, conduit, cable and appurtenance. 1.4 SUBMITTALS A. Test Results: Submit proctor and density quality control test results within 24 hours after testing is completed. PART 2 PRODUCTS 2.1 MATERIALS A. Water main lines shall be bedded using native or import material conforming to the following gradation specifications: Screen Percent Passing (If DIP or Concrete Pipe) 1” 100 (If PVC or HDPE Pipe) 3/4” 100 No. 4 85-95 No. 30 20-30 No. 200 5-15 B. Select Trench Backfill: Select backfill material shall be granular, readily compactable and shall be free from alkali, salt, and petroleum products, roots, sod, limbs, and other vegetative matter, slag, cinders, ashes and rubbish, or other material that in the opinion of the ENGINEER may be objectionable. Conforming to the following gradation specifications: Screen Percent Passing 6 inch 100 No. 10 50 max. No. 40 30 max. No. 200 15 max. Material from excavation may be used if it will meet all requirements of select backfill, including compaction requirements as specified for type of surface improvement above trench. PART 3 EXECUTION 3.1 EXAMINATION A. Verify field measurements and existing utilities being crossed prior to Work. B. Verify Work associated with lower elevation utilities is complete before placing CMWC – 400,000 Gallon Upper Tank 33 05 20-3 higher elevation utilities. 3.2 PREPARATION A. Call Blue Stakes not less than two working days before performing Work. Request underground utilities to be located and marked within and surrounding construction areas. B. Identify required location and elevation of new utility lines and buried structures. C. Notify Engineer immediately after utility conflicts are identified. D. Erect and maintain temporary barriers, safety devices and similar measures for protection of public and existing improvements to remain. E. Install appropriate erosion and sediment control measures prior to starting trenching. F. Clear vegetation, debris, and rubbish from utility alignment. Dispose of material off site. G. When trench is in sodded areas, carefully remove sod and stockpile for placement after backfill is placed. H. When trench is in cultivated areas, remove 12 inches of topsoil and stockpile for placement as final layer of backfill. 3.3 EXCAVATION A. Excavate soil required for installation of utility lines and appurtenances. B. Cut trenches sufficiently wide to enable installation of pipe and appurtenances, and allow inspection. Cut slope of trench walls to meet Utah State Industrial Commission and OSHA requirements, and soil conditions. Provide shoring where needed. Take necessary precautions to protect employees in or around excavations. C. Remove water from trench. Maintain trenches free from water. Dewatering of trench will be considered incidental to trenching and shall be included in bid price. D. Hand trim excavation for bell and spigot pipe joints and to required elevation for buried structures. Remove materials that interfere with Work. E. Remove lumped soil, boulders, and rock. F. Correct areas over excavated and re-compact. CMWC – 400,000 Gallon Upper Tank 33 05 20-4 G. Stockpile excavated material alongside of trench or in other areas to minimize damage to improvements. H. No more than 500 linear feet of open trench permitted. At end of each work day, bring backfill operation concurrent with excavation operation. I. For pipe, minimum width of trench shall not be less than outside diameter of pipe plus 9 inches on each side of pipe. J. Excavate trenches to depth indicated on Drawings. Provide uniform and continuous bearing and support for bedding material and utilities. K. Cut out soft areas of subgrade not capable of compaction in place. Backfill with suitable material, and compact to density equal to or greater than requirements for subsequent backfill material. 3.4 ROCK EXCAVATION A. Not anticipated 3.5 LINES AND GRADES A. Lay pipes to lines and grades indicated on Drawings. B. Use laser-beam instrument with qualified operator to establish lines and grades. C. Engineer may make changes in lines, grades, and depths of utilities when changes are required for Project conditions. 3.6 SHEETING AND SHORING A. Sheet, shore, and brace excavations to prevent danger to persons, structures and adjacent properties and to prevent caving, erosion, and loss of surrounding subsoil. Meet OSHA requirements. B. Support trenches more than 5 feet deep excavated through unstable, loose, or soft material. Provide sheeting, shoring, bracing, or other protection to maintain stability of excavation. C. Design sheeting and shoring to be removed at completion of trenching work. D. Repair damage caused by failure of sheeting, shoring, or bracing and for settlement of filled excavations or adjacent soil. E. Repair damage to new and existing work from settlement, water or earth pressure or other causes resulting from inadequate sheeting, shoring, or bracing. CMWC – 400,000 Gallon Upper Tank 33 05 20-5 3.7 BACKFILL A. After utilities, appurtenances, and bedding have been installed; backfill trenches. Do not backfill over porous, wet, frozen, or spongy subgrade surfaces. B. Employ placement method that does not disturb or damage utilities and other improvements. C. Backfill in layers not exceeding 12 inches non-compacted depth. Reduce layer thickness if tests show unsatisfactory density. Use hand-operated compaction equipment in areas inaccessible to self-propelled compaction equipment. When using hand-operated compaction equipment, backfill in layers not exceeding 6 inches no-compacted depth. D. Mix rocks with finer material to minimize voids. Do not place rocks exceeding 2 inches within 12 inches of pavement subgrade and within 2 feet of structures. E. When trench is in cultivated areas, place stockpiled topsoil in final layer of backfill. Remove rocks exceeding 1.5 inches from topsoil. F. Maintain optimum moisture content of backfill materials to attain required compaction density. G. Compact backfill to density indicated in Compaction Schedule at end of this Section. H. Grade surplus material to blend in with existing contours or remove surplus materials from site if necessary. Do not leave rocks originating from trench and exceeding 2 inches on finish grade. I. Slope surface grade away from buried structures. J. Restore damaged surface improvements including, but not limited to: fences, ditches, culverts, signs, delineators, curbs, sidewalks, structures, landscaping, and other miscellaneous items. Restore improvements to equal or better condition as existed prior to construction. 3.8 TOLERANCES A. Top Surface of General Backfill: Plus or minus 0.1 foot from required elevations. B. Top Surface of Backfill under Paved Areas: Plus or minus 0.04 foot from required subgrade elevation. C. Moisture Content: Plus or minus 2 percent of optimum. Test in accordance with ASTM D6938. CMWC – 400,000 Gallon Upper Tank 33 05 20-6 3.9 FIELD QUALITY CONTROL TESTING A. Maximum Laboratory Density: Determined in accordance with AASHTO T180, Method D for A-1 soils and AASHTO T99, Method D for other soils Test for each type of soil encountered on site. B. Establish roller patterns necessary to achieve density indicated in Compaction Schedule at end of this Section. C. Density Tests: Perform in accordance with ASTM D6938. 1. Frequency: Take minimum of one density test per lift for each 200 linear feet of trench. 2. Acceptance: Average density equals or exceeds density indicated in Compaction Schedule at end of this Section. Reject single density tests greater than 4 percent below specified density. 3. If tests indicate Work is not acceptable, re-compact and retest. If necessary, remove and replace Work. 3.10 PROTECTION OF FINISHED WORK A. Protect utilities and improvements indicated to remain from damage. B. Protect bench marks and survey control point from damage or displacement. C. Protect finished Work from damage. D. Reshape and re-compact trenches subjected to vehicular traffic during construction. 3.11 COMPACTION SCHEDULE A. Non-Traveled Areas: Compact backfill to minimum 90 percent of maximum laboratory density. Includes trenches in landscape areas and unimproved areas. B. Traveled Areas and Structures: Compact backfill to minimum 95 percent of maximum laboratory density. Includes trenches below access roadway, structures, sidewalks, roads, parking lots, driveways and access roadway. END OF SECTION CMWC – 400,000 Gallon Upper Tank 33 10 00-1 SECTION 33 10 00 PIPING MATERIALS AND COMPONENTS PART 1 - GENERAL 1.01 SCOPE This section covers the work necessary for furnishing and installing the piping. PART 2 - PRODUCTS 2.01 DUCTILE IRON PIPE A. Ductile iron pipe shall conform to the requirements of the AWWA C151 and AWWA C150. Pipeline thickness rating shall be minimum Class 53 for pipe as required by the City. The pipe shall be provided with rubber gaskets, specials, and fittings as required. Nominal pipe laying lengths shall be 20-feet. B. Ductile Iron Fittings. Ductile iron fittings shall conform to the "American National Standard for Gray Iron and Ductile Iron Fittings for Water and Other Liquids" (ANSI/AWWA C110). C. Ductile Iron Pipe Joints. Ductile iron pipe shall be furnished with mechanical joints, flanged joints, flexible couplings as required and shall conform to the "American National Standard for Rubber-Gasket Joints for Cast Iron and Ductile Iron Pressure Pipe and Fittings" (ANSI A21.11 AWWA C111) and the "American National Standard for Flanged Cast Iron and Ductile Iron Pipe with Threaded Flanges" (ANSI A21.15 AWWA C115). D. Restrained joints shall conform to the requirements of AWWA C151. Joint restraints for pipe-to-pipe connections shall be Megalug Series 1700 by EBAA Iron for push-on joints or Megalug Series 1100 by EBAA Iron for mechanical joints, or approved equal. Joint restraints for fittings and bends shall be Megalug Series 1100 by EBAA Iron, or approved equal. E. Cement Mortar Lining. Ductile iron pipe and fittings shall be lined with cement mortar in accordance with the requirements of the "American National Standard for Cement Mortar Lining for Cast Iron and Ductile Iron Pipe and fittings for Water" (ANSI A21.4 AWWA C104) except that lining thickness shall be not less than 3/16 of an inch for pipe smaller than 24-in diameter and 1/4 of an inch for pipe 24-in diameter and larger. 2.02 HDPE PIPE A. High-density polyethylene pipe shall be as manufactured by ISCO Industries (or approved equal) and shall have a minimum pressure rating as noted on the plans. CMWC – 400,000 Gallon Upper Tank 33 10 00-2 The HDPE pipe shall have designation of PE 4710 (IPS size), made from resin with a minimum cell classification of PE 445574C or higher in accordance with ASTM F-714 and shall be NSF approved. B. The manufacturer shall comply with AWWA Standard C901 or C906 by certifying to the design engineer and marking the pipe with the appropriate AWWA standard in the printline. A. Fittings shall be pressure rated to match the system piping to which they are joined. At the point of fusion, the outside diameter and minimum wall thickness of the fitting shall meet the outside diameter and minimum wall thickness specifications of AWWA C901 or AWWA C906 for the same size of pipe 2.03 STEEL PIPE A. All steel pipe for water conveyance shall conform to AWWA C200 and ASTM A53 – Grade B standard schedule and shall be epoxy lined and coated meeting AWWA C210 standards. 2.04 GASKETS AND BOLTS A. Except as otherwise provided, gaskets for flanged joints shall be 1/8-inch thick rubber fabric. B. All buried fittings using steel bolts shall be coated with no-oxide wax and wrapped with polyethylene or as otherwise approved by ENGINEER. 2.05 SAFETY TAPE A. Safety tape shall be a minimum of 2-inch wide by 5.0 mil overall thickness, with no less than a 0.35-gauge solid aluminum foil core. It shall be colored per American Public Works Association (APWA) National Color Code and shall be clearly labeled with the words “CAUTION WATER LINE BELOW” or similar wording approved by ENGINEER. Safety tape shall be MagnaTec by Empire Level, or approved equal. 2.06 TRACER WIRE A. All piping (including service lines) shall be installed with #14 gauge direct bury blue tracer wire for pipeline location purposes by means of an electronic line tracer. 1. The wires must be installed along the entire length of the pipe on the top of the pipe and be held in place with poly tape at all pipe joints and at 5 foot intervals. 2. Sections of wire shall be spliced together using approved splice caps and waterproof seals. Twisting the wires together is not acceptable. CMWC – 400,000 Gallon Upper Tank 33 10 00-3 PART 3 - EXECUTION 3.01 PIPE PREPARATION AND HANDLING A. Each pipe and fitting shall be carefully inspected before the exposed pipe or fitting is installed or the buried pipe of fitting is lowered into the trench. The interior and exterior protective coating shall be inspected, and all damaged areas patched in the field with material similar to the original. Clean ends of pipe thoroughly. Remove foreign matter and dirt from inside of pipe and keep clean during and after laying. B. Use proper implements, tools, and facilities for the safe and proper protection of the pipe. Carefully handle pipe in such a manner as to avoid any physical damage to the pipe. Do not drop or dump pipe into trenches under any circumstances. 3.02 CUTTING PIPE A. General. Cut pipe for inserting valves, fittings, closure pieces, and as otherwise required, in a neat and workmanlike manner without damaging the pipe of lining and so as to leave a smooth end at right angles to the axis of the pipe. B. Steel Pipe. As far as practicable, all steel pipe shall be furnished in the proper length in accordance with the reviewed shop drawings. If cutting of the steel pipe is required in the field, cut with wheel type pipe cutter. Do not cut with flame or hacksaw. C. Dressing Cut Ends. Dress cut ends of pipe in accordance with the type of joint to be made. Dress cut ends of mechanical joint pipe to remove sharp edges or projections which may damage the rubber gasket. Dress cut ends of push-on joint pipe by beveling, as recommended by the pipe manufacturer. Dress cut ends of welded steel pipe for field welding by beveling in accordance with AWWA C20. Dress cut ends of pipe for flexible couplings or flanged coupling adapters as recommended by the coupling or adapter manufacturer. 3.03 LAYING BURIED PIPE A. All buried pipe shall be prepared as hereinbefore specified and shall be laid on the prepared base and bedded to insure uniform bearing. No pipe shall be laid in water or when, in the opinion of the Engineer, trench conditions are unsuitable. Joints shall be made as herein specified for the respective types. Take all precautions necessary to prevent uplift and floating of the pipe prior to backfilling. Where the pipe is connected to concrete structures, the connection shall be made as shown. If the connection is not shown, make connection such that a standard pipe joint is located no more than 18 inches from the structure. CMWC – 400,000 Gallon Upper Tank 33 10 00-4 3.05 THRUST BLOCKING C. Thrust blocks shall be installed at points where the pipe changes direction such as: at all tees, elbows, wyes, caps, valves, hydrants, reducers, etc. D. Thrust blocks shall be constructed so that the bearing surface is in direct line with the major force created by the pipe or fitting. E. Thrust blocks shall bear against solid undisturbed earth at the side and bottom of the trench excavation and shall be shaped so as not to obstruct access to the joints or the pipe or fitting. F. Thrust blocks shall be sized and constructed per APWA Standards or the drawings, whichever is greater. 3.06 PRELIMINARY CLEANING AND FLUSHING A. CONTRACTOR shall flush the pipeline as the work progresses by a means in accordance with good practice to ensure that sand, rocks, or other foreign material do not remain in any of the pipeline. If possible, the flushing shall be made with an open pipe end. B. CONTRACTOR shall provide to ENGINEER a proposed schedule and method of flushing for review before the flushing starts. 3.07 HYDROSTATIC TESTING A. See Cottonwood Mutual Water Company Standards. 3.08 TRACER WIRE TESTING B. Upon completion of the pipe installation, CONTRACTOR shall demonstrate that the wire is continuous and unbroken through the entire run of the pipe. 1. Demonstration shall include full signal conductivity (including splices) when energizing for the entire run in the presence of OWNER OR ENGINEER. 2. If the wire is broken, CONTRACTOR shall repair or replace it. Pipeline installation will not be accepted until the wire passes a continuity test. END OF SECTION 33 10 00 CMWC – 400,000 Gallon Upper Tank 33 12 16-1 SECTION 33 12 16 WATER VALVES AND ACCESSORIES PART 1 - GENERAL 1.01 SCOPE A. This section covers the work necessary for furnishing and installing gates, valves, and miscellaneous equipment. 1.02 REFERENCES A. The latest edition of the following publications form a part of these specifications to the extent referenced. The publications are referred to in the text to by basic designation only. B. AMERICAN WATER WORKS ASSOCIATION (AWWA) 1. C-500 Metal-Seated Gate Valves for Water Supply Services 2. C-504 Standard for Rubber-Seated Butterfly Valves 3. C-509 Resilient-Seated Gate Valves for Water Supply Service 4. C-512 Air-Release, Air/Vacuum, and Combination Air Valves for Waterworks Service 5. C-515 Standard for Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Services 1.03 SUBMITTALS A. Submit catalog cut sheets on all mechanical appurtenances including: fittings, valves, or other items shown on the Drawings referencing each item by mark number. Information shall indicate manufacture specification compliance and dimensional data. PART 2 - PRODUCTS 2.01 GATE VALVES A. Gate valves shall conform to the "Standard for Resilient-Seated Gate Valves for Ordinary Water Works Service" (AWWA C-500 and C-509). Valves shall be of the resilient-seat type with non-rising stem, opening to the left, and provided with a 2-inch square operating nut for buried valves or handwheel for valves located in structures. Buried valves shall be of flange or mechanical joint design to match pipe joint system. CMWC – 400,000 Gallon Upper Tank 33 12 16-2 B. Valves, valve-operating units, stem extensions and other accessories shall be installed by CONTRACTOR where shown, or where required in the opinion of ENGINEER, to provide for convenience in operation. Where buried valves are indicated, CONTRACTOR shall furnish and install valve boxes to 3-inches above grade in unimproved areas, at grade with concrete collar in asphalted driving areas or 6” below finished grade in gravel/dirt driving areas. All valves and gates shall be new and of current manufacture. C. The valve shall have an FDA, EPA, AWWA C550 and ASTM D1763 approved two-part thermosetting epoxy protective coating (10 mil minimum inside and out) system that is non-toxic and imparts no taste to water. D. The flanges of valves may be raised or plain faced. Flanges of valves shall be faced and drilled to 125-lb American Standard template. E. All valves shall be furnished with pressure classes equal to or better than the pressure class of the pipe with which the valves are to be used. Unless otherwise specified, each valve body shall be tested under a test pressure equal to twice its design water-working pressure. F. Valves shall be Mueller Resilient Seat, no approved equal. 2.02 DUAL DISC CHECK VALVE A. The check valve shall be dual disc, wafer style with torsion spring induced closure. Valves 2” through 36” diameter shall be suitable for pressures up to 250 psi water service. B. The valve shall be designed, manufactured, and tested in accordance with AWWA C 518. C. Joints: Provide the type of joint as specified on the Contract Drawings. Unless noted otherwise, provide wafer style valves for installation between ANSI B16.1 Class 125 flanges. D. Materials: The valve body shall be constructed of carbon steel per ASTM A 216, Grade WCB. The disc shall be constructed of ASTM B 584, Alloy C83600 cast bronze, or ASTM B 148, Alloy C95200 cast aluminum bronze, or ASTM A 351 Grade CF8M Stainless Steel. The pivot pins, stop pins, and torsion spring shall be Type 316 Stainless Steel for sizes up to 16-inch diameter and ASTM A 313 Type 17-7 PH on 18-inch diameter and larger. The seal shall be EPDM, Buna-N per ASTM D 2000-BG. E. Valve interior and exterior shall be coated with fusion bonded epoxy in accordance with AWWA C 550. F. Dual-disc check valves shall be Series #8800 by Val-Matic, or approved equal CMWC – 400,000 Gallon Upper Tank 33 12 16-3 2.03 BUTTERFLY VALVES A. Butterfly valves shall be AWWA C504 Standard Class 150B, and have a Flange by Flange, Flange by Mechanical Joint, Mechanical Joint, or wafer body style, as indicated on the drawings, rated for 200 psi working pressure. The valves shall have a heavy-duty ductile iron body with flanges fully faced and drilled per ANSI B16.1 Class 150B, cast or ductile iron disc, stainless steel shaft, and resilient replacement seat. Maximum flow velocity shall be less than 16 fps for cold water service. The valve shall have a hand wheel operator, 2-inch Standard AWWA nut operator, or traveling nut actuators rated at 450 ft. lbs. torque, and integral disc position indicators, or connected to an electric motor operator as noted on the drawings. B. The valve shall have a fusion bonded epoxy protective coating (10 mil minimum inside and out) system that is non-toxic and imparts no taste to water. The epoxy shall be applied in accordance with AWWA C550 and be ANSI/NSF 61 certified for potable water pipes. C. The valve shall be manufactured by Val-matic or approved equal. 2.04 ELECTRIC MOTOR OPERATORS A. The butterfly valve in the drain line manhole shall include an Electric Motor Operator. The Contractor shall be responsible for assuring that valve stem diameter, threading, key and keyway adaptation, and other dimensional information is as required to make the valve actuator and valve function as an integrated package. B. The operator shall mount directly to the butterfly valve. The motor operator shall include the motor, gearing, limit and torque switches, selector switch, push button station, position indicator, control voltage transformer, integral reversing controller, indicator lights, handwheel, lubricants, heating elements, wiring, and terminals. Each operator shall be constructed as a self-contained unit with a ductile iron weatherproof housing and shall be integrally assembled on the applicable valve by the valve manufacturer. Position and limit switches, position transmitters, controls, indicating lights, devices, and selector switches shall be coordinated with the input/output requirements of the control system as indicated on the drawings. The motor operators shall have a 24 VDC electrical rating to be powered by the solar panel provided by others. C. The operators for butterfly valves shall be designed to stroke from full open to full close or from full close to full open in not less than 90 seconds. Operating time for all valves of a give size shall be equal. D. The Electric Motor Operator shall provide adequate seating, unseating and dynamic torque to properly operate the butterfly valves. The Electric Motor Operator shall be Rotork Model IQT 500 actuator or approved equal. CMWC – 400,000 Gallon Upper Tank 33 12 16-4 PART 3 - EXECUTION 3.01 GENERAL A. Before installation, carefully clean valves of all foreign material, adjust stuffing boxes, and inspect valves in open and closed positions. Install valves in accordance with the applicable portions of these Specifications. B. Unless otherwise indicated, install valves with the stem vertical. Mount horizontal valves in such a manner that adequate clearance is provided for operation. Installation practices shall conform to manufacturer's recommendations. C. Prior to installing flanged valves, the flange faces shall be thoroughly cleaned. After cleaning, insert the gasket and tighten the nuts progressively and uniformly. If flanges leak under pressure, loosen the nuts, reseat or replace the gasket, re- tighten the nuts, and retest the joint. Joints must be watertight at test pressures before acceptance. 3.02 TESTING A. Valves will be tested at the same time that the adjacent pipeline is tested. Joints shall show no visible leakage under test. Repair joints that show signs of leakage prior to final acceptance. If there are any special parts of control systems or operators that might be damaged by the pipeline test, they shall be properly protected. The Contractor will be held responsible for any damage caused by the testing. END OF SECTION CMWC – 400,000 Gallon Upper Tank 33 16 16 -1 SECTION 33 16 16 REINFORCED CONCRETE WATER STORAGE RESERVOIR PART 1 GENERAL DESCRIPTION This Section covers construction of an underground water storage reservoir. REFERENCES Work covered by this Specification shall meet or exceed the provisions of the latest editions of the following Codes and Standards in effect at the time of award of the Contract: AMERICAN CONCRETE INSTITUTE (ACI) ACI 318 Building Code Requirements for Reinforced Concrete ACI 350 Code Requirements for Environmental Engineering Concrete Structures ACI Manual of Concrete Practice AMERICAN WATER WORKS ASSOCIATION (AWWA) AWWA C652 Standard for Disinfection of Water-Storage Facilities NATIONAL SANITATION FOUNDATION NSF 61 Drinking Water System Components - Health Effects. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 1557 Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10-lb (4.54-kg) Rammer and 18-in. (457-mm) Drop SUBMITTALS All submittals shall be in accordance with Section 01 33 00 - Submittal Procedures. Submit a proposed plan for disinfecting the drinking water reservoir. The plan shall include a method of disposing of any high concentrations of chlorine solution. DESIGN CRITERIA Governing Code: ACI 350-06 Importance Factor: 1.5 Ss = 0.767 g; S1 = 0.269 g Ground Snow Load = 70 psf CMWC – 400,000 Gallon Upper Tank 33 16 16 -2 PART 2 PRODUCTS CONCRETE All concrete work shall be in accordance with Section 03 30 00 Cast-in-Place Concrete. NSF STANDARD 61 CERTIFICATION All interior surfaces or coating within drinking water reservoir shall consist of products which are certified by laboratories approved by ANSI and which comply with ANSI/NSF Standard 61. This applies to any pipes and fittings, protective materials (e.g. paints, coatings, concrete admixtures, concrete release agents, concrete sealers, etc.), joining and sealing materials (e.g. adhesives, caulks, gaskets, primers, sealants, etc.) which are located so as to come into contact with drinking water. JOINT SEALANT Joint Sealant shall be NSF 61 SIKAFLEX – 2C NS EZ or approved equal. PART 3 EXECUTION PREPARATION OF SURFACES Subgrade upon which concrete is placed shall be firm and free from water, frost, ice, mud, and deleterious materials. The structural fill under footings and slabs shall be compacted to 95% minimum density and within 2% optimum moisture as determined by ASTM D- 1557. Disturbed soils forming the base to the structural fill shall be removed and replaced with structural fill material compacted to 95% minimum density and within 2% optimum moisture as determined by ASTM D-1557. Reference the Geotechnical Report for additional requirements. Rock Subgrade: When concrete is to be deposited on rock, the rock shall be fully uncovered, cleaned, and its surface shall be removed to a depth sufficient to expose sound rock. Bedrock shall be roughly leveled-off or cut to approximately horizontal and vertical slopes. Piping, conduits and other similar items shall be in place and clean of any deleterious substance. SAMPLING AND TESTING Testing shall be at Contractor’s expense with Contractor responsible for coordination with testing agency. CONSTRUCTION JOINTS Construction joints shall be located as indicated or approved. Unless otherwise indicated concrete placing shall be continuous. CMWC – 400,000 Gallon Upper Tank 33 16 16 -3 FINISHING CONCRETE Concrete finishing shall conform to Section 03 30 00 Cast-in-Place Concrete as follows: FINISH SCHEDULE Item Location Reservoir 1 Footing/Floor Slab Trowel Finish 2 Walls Rough Form Finish 3 Columns Smooth Form Finish 4 Roof Slab Trowel Finish 5 Hatch Curb Walls Rough Form Finish CURING AND PROTECTION Concrete curing shall conform to Section 03 30 00 Cast-in-Place Concrete as follows: CONCRETE RESERVOIR 1 Floor Slab Water or membrane cure 2 Walls Leave forms in place a minimum of 24 hours then apply a membrane curing compound 3 Columns Leave forms in place a minimum of 24 hours then apply a membrane curing compound 4 Roof Slab Apply membrane curing compound to roof deck surface. Leave forms in place a minimum of 10 days or until concrete has reached at least 80 percent of the required compressive strength 5 Other Concrete Membrane Curing MISCELLANEOUS SITE WORK 1 Concrete Work Apply membrane curing compound RESERVOIR DISINFECTION AND TESTING WATER CONTRACTOR shall make arrangement with the Cottonwood Mutual Water Company for the use of water to disinfect and test the reservoir. CONTRACTOR shall be responsible for cost of water to fill the reservoir. Any water discharged from the site must meet Owner’s standards for discharge. CLEANING RESERVOIR After construction is completed, the interior of the tank shall be completely hosed out and cleaned of all dirt and loose material. CMWC – 400,000 Gallon Upper Tank 33 16 16 -4 RESERVOIR DISINFECTING CONTRACTOR shall disinfect the drinking water reservoir in accordance with the latest revision of AWWA C652 "DISINFECTION OF WATER-STORAGE FACILITIES". Only AWWA approved methods, i.e. chlorination of the full storage, or spraying or painting of surfaces, will be allowed. After the chlorination procedure is completed, and before the storage facility is placed in service, water from the full facility shall be sampled and tested by Contractor for coliform organisms and Volatile Organic Compounds (VOC) in accordance with the latest edition of "Standard Method for the Examination of Water and Wastewater". Test for Odor. The water in the full facility will also be tested to assure that no offensive odor exists due to chlorine reactions or excess chlorine residual. Results of Testing. If the test for coliform organism is negative, then the storage facility may be placed in service after Owner obtains an Operating Permit from the Utah Division of Drinking Water. If the test shows the presence of coliform bacteria, then the situation shall be evaluated by a qualified Engineer. In any event, repeat samples shall be taken until two consecutive samples are negative, or the storage facility shall again be subjected to disinfection at no additional cost to OWNER. RESERVOIR TESTING Testing - On completion of the tank and prior to any specified backfill placement at the footing or wall, the following test shall be applied to determine water-tightness: Fill the tank with potable water to the maximum level and let it stand for at least 24 hours. Measure the drop in liquid level over the next 72 hours to determine the liquid volume loss for comparison with the allowable leakage. Evaporative losses shall be measured and deducted from the measured loss to determine the net liquid loss (leakage). The net liquid loss for a period of 24 hours shall not exceed 0.05 of 1 percent of the tank capacity being tested. If the leakage exceeds the maximum allowable, the leakage test shall be extended to a total of five days. If at the end of five days the average daily leakage does not exceed the maximum allowable, the test shall be considered satisfactory. If the net liquid loss exceeds the maximum allowable, leakage shall be considered excessive and the tank shall be repaired, re-disinfected, and re-tested until leakage falls within the appropriate limit. Damp spots on the exterior wall surface or measurable leakage of water at the wall base shall not be permitted. Damp spots are defined as spots where moisture can be picked up on a dry hand. The source of water movement through the wall shall be located and permanently sealed in an acceptable manner. Leakage through the floor or the wall- base joint or footing shall likewise be corrected. The tank shall not be backfilled until and unless ENGINEER has accepted the tests. CMWC – 400,000 Gallon Upper Tank 33 16 16 -5 REPAIRS CONTRACTOR shall make all necessary repairs if the tank fails the leakage test or is otherwise defective. The method of repair shall be subject to acceptance by OWNER. General Concrete Repair. The most common repair method for small areas of honeycombed concrete (rock pockets) and other defective concrete is removal and replacement with non-shrink aggregate grout (which may include pea gravel aggregate) bonded to the concrete with an epoxy bonding agent. The minimum strength of the material used in the repair shall equal or exceed that specified for the concrete. Defective tie-hole patches shall be removed and the holes repacked or epoxy injected. Wall Repair. Damp or wet spots resulting from leakage through the wall shall be repaired with a high-pressure epoxy injection grouting system or other method acceptable to OWNER. When epoxy grouting is to be performed, a low-viscosity, two-component, water- insensitive, nontoxic epoxy-resin system with an inline metering and mixing system shall be used. The pumps shall be capable of producing a minimum injection pressure of 100 psi. Injection pressure shall be limited to 300 psi to ensure complete penetration of the defect without damaging the structure. Epoxy shall reach a minimum compressive strength of 6,000 psi in 24 hours according to the requirements of ASTM D695. An applicator with successful past experience in water-retaining structures shall be present on the job at all times while repairs are being made. Work shall be guaranteed against failure of the epoxy bond in the repair areas for a minimum period of one year. Any exposed defect receiving epoxy repair shall first be cleaned of dirt, laitance, and other material that might prevent proper bonding. A suitable temporary seal shall then be applied to the surface of the defect to prevent the escape of the epoxy. Entry ports shall be spaced along the seal at intervals not greater than the thickness of the cracked element. The epoxy shall be injected into the crack at the lowest port first, with sufficient pressure to advance the epoxy to an adjacent port, using a small nozzle held tightly against the port. The operation shall continue until epoxy material begins to extrude from the adjacent port. The original port shall be sealed and the injection shall be repeated in one continuous operation until the crack has been injected with epoxy for its entire length. All ports, including adjacent locations where epoxy seepage occurs, shall be sealed as necessary to prevent drops and runouts. On completion of the injection of the crack, the grout shall be allowed to cure for a sufficient time to allow the removal of the temporary seal without any draining or running out of the adhesive epoxy material from the crack. The surface of the crack shall then be finished flush with the adjacent surfaces and shall show no indentations or evidence of port filling. CMWC – 400,000 Gallon Upper Tank 33 16 16 -6 Floor and piping repair. The total loss shall not exceed the criteria stated in subsection 3.9. If the loss of water exceeds the criteria, the tank floor shall be inspected for point sources of leakage with the tank full or empty. Water loss through defective areas of the floor shall be located. Defective floor concrete shall be repaired according to subsection 3.10.B. Floor joints and cracks shall be repaired by epoxy injection grouting as specified in subsection 3.10.C, by routing and applying a capillary waterproofing system, or by other means acceptable to OWNER. BACKFILL Backfill operation shall be done after concrete in the structure has reached its design strength, has passed all leak detection tests, and approval is given by ENGINEER. Backfill on top of the reservoir deck, if required, shall not cause excessive loads greater than the design loads. Material shall not be stacked more than 24" in any pile and shall be evenly distributed in layers not to exceed 12" in depth. The backfill on the roof shall be placed with lightweight construction equipment only: 6,000 lbs. or less in gross weight. SOIL COVER The soil cover, if required, shall be compacted to not less than 85% maximum density as determined by ASTM D-1557. END OF SECTION 33 16 16 14425 South Center Point Way Bluffdale, Utah 84065 Phone (801) 501-0583 | info@geostrata-llc.com Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah GeoStrata Job No. 1712-001 May 10, 2022 Prepared for: MCCWDG LLC Co: Ray Nettleton of Roof Top Developers LLC 704 East 600 South Kaysville, UU 84037 801-688-5443 Ray@Rooftopdeveopers.com 14425 S. Center Point Way, Utah 84065 T: (801) 501-0583 ~ info@geostrata-llc.com Prepared for: MCCWDG LLC Co: Ray Nettleton of Roof Top Developers LLC 704 East 600 South Kaysville, UU 84037 801-688-5443 Ray@Rooftopdevelopers.com Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah GeoStrata Job No. 1712-001 Prepared by: _______________________ Sofia Agopian, P.G. Timothy J. Thompson, P.G. Project Geologist Principal Geologist ______________________ ______________________ Caleb Allred, P.E. Justin Scott Seal, P.E., G.I.T. Project Engineer Associate Principal Engineer GeoStrata 14425 South Center Point Way Bluffdale, UT 84065 (801) 501-0583 May 10, 2022 5/10/202 2 5/10/2022 Copyright © 2022 GeoStrata i 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY ...................................................................................1 2.0 INTRODUCTION..................................................................................................3 2.1 PURPOSE AND SCOPE OF WORK .................................................................3 2.2 PROJECT DESCRIPTION ..................................................................................3 3.0 METHODS OF STUDY ........................................................................................5 3.1 OFFICE INVESTIGATION ................................................................................5 3.2 FIELD INVESTIGATION ..................................................................................5 3.3 LABORATORY INVESTIGATION ..................................................................6 3.4 ENGINEERING ANALYSIS ..............................................................................6 4.0 GEOLOGIC CONDITIONS ................................................................................8 4.1 REGIONAL GEOLOGIC SETTING ..................................................................8 4.2 REPORTED SITE GEOLOGY ...........................................................................9 4.3 SITE SPECIFIC GEOMORPHOLOGY .............................................................9 4.4 SEISMICITY AND FAULTING ........................................................................9 5.0 GENERALIZED SITE CONDITIONS .............................................................11 5.1 SURFACE CONDITIONS ................................................................................11 5.2 SUBSURFACE CONDITIONS ........................................................................11 5.2.1 Soil Observations ...........................................................................................11 5.3 GROUNDWATER CONDITIONS ...................................................................12 5.3.1 Site Observations .......................................................................................12 5.3.2 Literature Review .......................................................................................12 5.4 INTERPRETATION OF SUBSURFACE CONDITIONS ...............................12 5.5 STRENGTH OF EARTH MATERIALS ..........................................................13 6.0 GEOLOGIC HAZARDS .....................................................................................15 6.1 LANDSLIDE, SLUMP, CREEP .......................................................................15 6.2 GLOBAL STABILITY OF NATURAL SLOPES ............................................15 6.3 NEAR SURFACE STABILITY OF NATURAL SLOPES ..............................17 7.0 GEOLOGIC HAZARDS SUMMARY AND CONCLUSIONS ......................18 8.0 CLOSURE ............................................................................................................19 8.1 LIMITATIONS ..................................................................................................19 9.0 REFERENCES CITED .......................................................................................20 Copyright © 2022 GeoStrata ii 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank APPENDICES Appendix A Plate A-1 – Site Vicinity Map Plate A-2 – Topographic Map Plate A-3 – Hillshade Map Plate A-4 – Slope Map Plate A-5 – Exploration Location Map Plate A-6 – Site Vicinity Geologic Map Plate A-7 – Site Vicinity 30’ X 60’ Geologic Map Plate A-8 – Hydrologic Data Plate A-9 – Cross Section A-A’ Appendix B Plate B-1 – Geotechnical Logs Plate B-2 – Soil Symbols and Description Key Appendix C Plate C-1 – Atterberg’s Limits Test Results Plate C-2 to C-4 – Unconfined Compression Test Results Plate C-5 to C-6 – Direct Shear Test Results Appendix D Plate D-1 – Cross Section A-A’ Static Conditions Plate D-2 – Cross Section A-A’ Pseudo Static Conditions Copyright © 2022 GeoStrata 1 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 1.0 EXECUTIVE SUMMARY The purpose of our geologic hazards and geotechnical investigation is to assess the proposed location of the MCCWDG 600,000-gallon water tank in Mountain Green, Utah for potential geologic hazards that may impact the cost and feasibility of the proposed construction. Our geologic hazards assessment for the subject property has been completed in order to meet the requirements described in Title 8 Chapter 5 Article I of the Morgan County Code. As part of this assessment, we have identified and described geologic hazards observed within or immediately adjacent to the subject site and have provided our professional opinion as to whether these geologic hazards can be mitigated or avoided where we deem the hazards to be impracticable to mitigate. The work performed for this report was performed in accordance with our proposal, dated February 3, 2022 and our scoping letter submitted to and accepted by Morgan County, dated February 14, 2022. The proposed location of the MCCWDG water tank is located in a small drainage basin above and south of Cottonwood Creek in Mountain Green, Utah. Based on our understanding, the proposed MCCWDG water tank will be buried and will be designed to have the storage capacity of approximately 600,000-gallons. Construction plans were not available at the time this report was prepared. Based on our conversations with the Client, we understand that the proposed location for the water tank is to be located on a relatively flat area adjacent to the existing drainage. The landslide, slump and creep hazards that would potentially impact the site were assessed as part of this study. Landslide deposits (Qms, Qmso) are mapped upslope and to the north and south of the proposed water tank site. Colluvium (Qc) is identified as underlying the location of the proposed water tank and based on Title 8 Chapter 5 Article I of the Morgan County Code, a slope stability assessment for the proposed water tank should be performed as part of this geologic hazards investigation which will be discussed in Section 6.2 Global Stability of Natural Slopes and Section 6.3 Near Surface Stability of Natural Slopes of this report. It is the opinion of GeoStrata that the landslide, slump, and creep hazard at the site is considered low and should not preclude the proposed development at the subject site as long as the recommendations presented in this report are followed. Copyright © 2022 GeoStrata 2 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank GeoStrata performed a site specific slope stability analysis. Based on the results of our slope stability analysis described above, the site meets the industry standard of care recommended factors of safety of 1.5 and 1.0 for static and pseudo-static conditions, respectively. Since final design plans were not available to GeoStrata at the time this report was prepared, GeoStrata should be contacted to review all proposed cut and fill and all other site grading plans for the proposed development of the site. GeoStrata may need to complete additional slope stability analyses depending on the planned grading and site improvements. GeoStrata can provide the developer with recommendations to maintain proper slope stability and factor of safety at the owners request if deemed necessary. NOTICE: The scope of services provided within this report are limited to the assessment of the subsurface conditions for the proposed development. This executive summary is not intended to replace the report of which it is part and should not be used separately from the report. The executive summary is provided solely for purposes of overview. The executive summary omits a number of details, any one of which could be crucial to the proper application of this report. Copyright © 2022 GeoStrata 3 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 2.0 INTRODUCTION 2.1 PURPOSE AND SCOPE OF WORK The purpose of our geologic hazards and geotechnical investigation is to assess the proposed location of the MCCWDG 600,000-gallon water tank in Mountain Green, Utah for potential geologic hazards that may impact the cost and feasibility of the proposed construction. Our geologic hazards assessment for the subject property has been completed in order to meet the requirements described in Title 8 Chapter 5 Article I of the Morgan County Code. As part of this assessment, we have identified and described geologic hazards observed within or immediately adjacent to the subject site and have provided our professional opinion as to whether these geologic hazards can be mitigated or avoided where we deem the hazards to be impracticable to mitigate. The work performed for this report was performed in accordance with our proposal, dated February 3, 2022 and our scoping letter submitted to and accepted by Morgan County, dated February 14, 2022. Our scope of services included the following: • Review of available references and maps of the area. • Stereographic aerial photograph interpretation of aerial photographs covering the site area. • Review of Digital Elevation Models obtained from the State of Utah UGRC. • Geologic reconnaissance and field review of geologic mapping of the site by an engineering geologist to observe and document pertinent surface features indicative of geologic hazards. • Subsurface investigation and sample collection for laboratory testing. • Logs of exploratory borehole. • Evaluation of our observations and laboratory testing in preparation of this written report with conclusions and recommendations regarding summary of laboratory testing, discussion of site-specific soil and groundwater conditions and slope stability assessment. The recommendations contained in this report are subject to the limitations presented in the Limitations section of this report. 2.2 PROJECT DESCRIPTION The proposed location of the MCCWDG water tank is located in a small drainage basin above and south of Cottonwood Creek in Mountain Green, Utah (see Plate A-1 Site Vicinity Map, Plate Copyright © 2022 GeoStrata 4 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank A-2 Topographic Map). Based on our understanding, the proposed MCCWDG water tank will be buried and will be designed to have the storage capacity of approximately 600,000-gallons. Construction plans were not available at the time this report was prepared. Based on our conversations with the Client, we understand that the proposed location for the water tank is to be located on a relatively flat area adjacent to the existing drainage. It should be noted that in addition to this geologic hazards investigation GeoStrata is concurrently completing a geotechnical investigation for the subject property. Results for that investigation will be summarized in a separate geotechnical engineering report. However, pertinent information obtained from that investigation, such as soil strength and seismic parameters will be utilized in this report to assess the slope stability hazard within the subject lot. Copyright © 2022 GeoStrata 5 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 3.0 METHODS OF STUDY 3.1 OFFICE INVESTIGATION To prepare for the investigation, GeoStrata reviewed pertinent literature and maps listed in the references section of this report, which provided background information on the local geologic history of the area and the locations of suspected or known geologic hazards (Elliot and Harty, 2010; USG, 2016; Black and others, 2003; King and others, 2008; Coogan and King 2016). A stereographic aerial photograph interpretation was performed for the subject site using two sets of stereo aerial photographs obtained from the UGS as shown in Table 1. Source Photo Number Date Scale UGS BPK_3-43 July 20, 1938 1:20,000 UGS BPK_3-44 July 20, 1938 1:20,000 Table 1: Aerial Stereosets. GeoStrata also conducted a review of 2020 0.5-meter lidar provided by the State of Utah UGRC to assess the subject site for visible lineations or other geologic hazards related geomorphology. The digital elevation models were used to create hillshade and slope imagery that could be reviewed for assessment of geomorphic features related to geologic hazards (Plate A-3 Hillshade Map, Plate A-4 Slope Map). 3.2 FIELD INVESTIGATION An engineering geologist investigated the geologic conditions within the general site area. A field geologic reconnaissance was conducted to observe existing geologic conditions and to assess existing geomorphology for surficial evidence of geologic hazards. We used our field observations to assess the observations made during our office research and to observe any evidence of geologic hazards that were not evident in our office research, but which could be observed in the field. In addition, subsurface soil conditions were explored by advancing one borehole to a depth of approximately 41½ feet below the existing site grade. The borehole location was chosen to provide a representative cross section of the subsurface soil conditions in the anticipated vicinity of the proposed water tank as well as to provide additional insight into the nature of the near- surface geology of the site. The approximate location of the borehole is shown on the Copyright © 2022 GeoStrata 6 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Exploration Location Map, Plate A-5 in Appendix A. Geotechnical log of the borehole were completed as part of this study and can be found on Plate B-1 within Appendix B of this report. A track mounted drill rig was used to drill the borehole. Both disturbed and undisturbed soil samples were obtained from each of the exploration locations and transported to our laboratory for testing to evaluate engineering properties of the various earth materials observed. The soils were classified according to the Unified Soil Classification System (USCS) by the Geotechnical Engineer. Classifications for the individual soil units are shown on the attached Borehole Logs. Keys to Soil Symbols and Terminology is presented on Plate B-2. 3.3 LABORATORY INVESTIGATION As part of our geotechnical investigation, GeoStrata has completed geotechnical laboratory testing on selected soil samples obtained during our field investigation. The laboratory testing program was designed to evaluate the engineering characteristics of onsite earth materials. Laboratory tests conducted during this investigation include: - Grain Size Distribution Analysis (ASTM D422) - Atterberg Limits Test (ASTM D4318) - Direct Shear Test (ASTM D3080) - Unconfined Compression Test (ASTM D2166) While the majority of this information will be contained within our geotechnical report and pertains largely to the design of the proposed structure, laboratory testing results pertinent to this geologic hazard investigation will be utilized. Laboratory testing results utilized in this investigation can be found attached to this report in Appendix C. 3.4 ENGINEERING ANALYSIS Engineering analyses were performed using soil data obtained from the laboratory test results and empirical correlations from material density, depositional characteristics, and classification. Appropriate factors of safety were applied to the results consistent with industry standards and the accepted standard of care. The global stability of the slope stability profile was modeled using the SLIDE computer application and the Bishop’s Simplified Method of analysis. Calculations for stability were developed by searching for the minimum factor of safety for a circular-type failure. Homogenous earth materials and arcuate failure surfaces were assumed. Topographic information for the Copyright © 2022 GeoStrata 7 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank profiles was obtained using the 0.5-meter lidar provided by the State of Utah URGC. Slope stability modeling results for this investigation can be found attached to this report in Appendix D. Copyright © 2022 GeoStrata 8 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 4.0 GEOLOGIC CONDITIONS 4.1 REGIONAL GEOLOGIC SETTING The site is located in a small drainage basin located on the north facing slopes of Cottonwood Creek Canyon and in the northeastern margin of Morgan Valley at an elevation of approximately 5,500 feet above sea level. The bedrock unit underlying the hillsides along the eastern margins of Morgan Valley is mapped as Tertiary Norwood Formation (Tn), Unnamed Tertiary Conglomerate (Tcg), Younger Unnamed Tertiary Conglomerate (Tcy), and Tertiary Fanglomerate of Huntsville (Thv). The bedrock unit underlying the hillsides along the western margins of Morgan Valley is mapped as Tertiary Norwood Formation (Tn) (Coogan and others, 2015; Coogan and King, 2016) (Coogan and others,2015; Coogan and King, 2016). The Norwood Formation (Tn) is described as light gray to light brown altered tuff (claystone), altered tuffaceous siltstone and sandstone, and conglomerate (Coogan and others, 2015). The Unnamed Tertiary Conglomerate (Tcg) is described as rounded, pebble to boulder sized quartzite clast conglomerate with less than 10% and greater than 50% gray, tan or reddish matrix and interbedded with pebble bearing mudstone to sandstone and some claystone (Coogan and others, 2015). The Younger Unnamed Tertiary Conglomerate (Tcy) is described as rounded pebble to boulder sized quartzite clast conglomerate with gray, tan, or reddish matrix (Coogan and others, 2015). The Tertiary Fanglomerate of Huntsville (Thv) is described as poorly to moderately consolidated, pebble to boulder gravel in a brown to reddish brown silt and sand matrix (Coogan and others, 2015). The upper Pleistocene to Holocene geologic units of Morgan Valley generally consists of lacustrine deposits (Qlf, Qls, Ql) related to the Lake Bonneville Cycle, alluvial deposits related to stream and floodplain deposits (Qal) and alluvial fan deposition (Qaf), and colluvial deposits (Qc, Qcg) related to slope wash and soil creep. At the end of the Pleistocene, Lake Bonneville receded, and streams began to incise the large deltas that had formed at the mouth of major canyons. The eroded material was deposited in shallow lakes and marshes in the basin and at the base of the nearby canyons in a series of recessional deltas and alluvial fan deposits that extend onto the valley floor. Once the lake had fully receded, post-Bonneville stream alluvium and floodplain sediments (Qal) related to the Weber River, East Canyon Creek and Deep Creek were deposited on the valley floor. These stream alluvium and floodplain sediments have a reported maximum thickness of up to 50 feet (Coogan and others, 2015). Copyright © 2022 GeoStrata 9 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 4.2 REPORTED SITE GEOLOGY The surficial deposits within the area of the proposed water tank are mapped as Holocene and Pleistocene colluvium deposits (Qc) and landslide and colluvial deposits (Qmc) as shown on Plate A-6 Site Vicinity Geologic Map and Plate A-7 Site Vicinity 30x60 Geologic Map. Oligocene and Miocene Tertiary conglomerate (Tcg, Tcy) bedrock is mapped uphill from the proposed location of the water tank and likely underlies the colluvium deposits (Qc) and landslide and colluvial deposits (Qmc) described above. The Tertiary Conglomerate bedrock (Tcg, Tcy) is described as rounded, pebble to boulder sized quartzite clast conglomerate with less than 10% and greater than 50% gray, tan or reddish matrix and interbedded with pebble bearing mudstone to sandstone and some claystone (Coogan and others, 2016). Both Coogan and King (2006) and Coogan and King (2016) identify a Pleistocene landslide deposit (Qmso) north and upslope from the location of the proposed water tank. A Holocene landslide deposit (Qms) is also identified by Coogan and King (2006) south and upslope from the location of the proposed water tank. 4.3 SITE SPECIFIC GEOMORPHOLOGY GeoStrata reviewed 1938 aerial stereosets and hillshade and slope imagery derived from 2020 0.5-meter lidar provided by the State of Utah URGC to assess the subject site for visible lineations or other geologic hazards related geomorphology. Several perennial streams were observed during our review of hillshade and slope imagery (Plate A-4 Hillshade Map, Plate A-5 Slope Map). 4.4 SEISMICITY AND FAULTING Morgan Valley is a Cenozoic age structural basin bounded to the east by west dipping normal faulting related to the Morgan fault zone. The Morgan fault zone extends approximately 17 km, trends generally north-south, and is comprised of a southern section, central section, and northern section. The southern and northern sections show evidence of late Quaternary movement, whereas the central section shows evidence of Holocene movement. Quaternary age fault scarps between approximately 30 to 45 feet high have been identified in the eastern portion of Morgan Valley west of the mountain front and north of Stoddard (Coogan and others, 2015). Spectral responses for the Risk-Targeted Maximum Considered Earthquake (MCER) are shown in the table below. These values generally correspond to a one percent probability of structure collapse in 50 years for a “firm rock” site. To account for site effects, site coefficients which Copyright © 2022 GeoStrata 10 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank vary with the magnitude of spectral acceleration are used. Based on our field exploration and the mapped geologic conditions of the surficial deposits within the subject site, it is our opinion that this location is best described as a Site Class D (Default). The spectral accelerations are calculated based on the site’s approximate latitude and longitude of 41.145° and -111.742° respectively and the Seismic Design Maps web-based application at https://seismicmaps.org/. Description Value Site Class D (default) Ss - MCER ground motion (period – 0.2s) 0.767 S1 - MCER ground motion (period – 1.0s) 0.269 Fa - Site amplification factor at 1.0s 1.200 Fv - Site amplification factor at 1.0s 2.062 PGA - MCEG peak ground acceleration 0.337 PGAM – Site modified peak ground acceleration 0.404 Table 2. Seismic Data It should be noted that our investigation did not include a site-specific ground motion hazard analysis and a Site Class D (Default) has been used to determine the seismic parameters presented above based on known geologic conditions at the site and according to the Section 20.1 of ASCE 7. The seismic parameters presented herein may be used for design of the proposed structures provided that structural design allows for the ground motion hazard analysis exception in ASCE 7-16 Segment 11.4.8. The seismic data provide above should be used by the project geotechnical and structural engineers for proper site and structural design. GeoStrata recommends that a licensed structural engineer provide proper structural designs for proposed residential structures which account for and mitigate this hazard. It is the opinion of GeoStrata that earthquake ground shaking hazard should not preclude development of the proposed addition. Copyright © 2022 GeoStrata 11 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 5.0 GENERALIZED SITE CONDITIONS 5.1 SURFACE CONDITIONS The project site is located on the north facing slopes of Cottonwood Creek Canyon and in the northeastern margin of Morgan Valley at an elevation of approximately 5,500 feet above sea level (see Plate A-1; Plate A-2). The location of the proposed water tank is located on the relatively flat portions of the drainage basin and is in a native state that consists predominantly of native grasses. The active drainage that will source water for the proposed water tank is located adjacent to and north of the proposed water tank site. Steep hillsides surround the located of the proposed water tank, however, it is not anticipated that cuts will extend into these areas. The parcels surrounding the proposed water tank are undeveloped hillsides owned and maintained by Morgan County. 5.2 SUBSURFACE CONDITIONS As previously discussed, subsurface soil conditions were explored at the subject property by advancing one borehole at the approximate center of the proposed water tank at the subject site (Plate A-5 Exploration Location Map). The Boreholes B-1 was drilled to a depth of approximately 41½ feet below the existing site grade. A borehole log was prepared and has been included as Plate B-1. Geotechnical and geological descriptions of the subsurface conditions encountered during our investigation are discussed below. 5.2.1 Soil Observations Based on our field observations and geologic literature review, the subject site is overlain by approximately ½ feet of a near surface topsoil composed of Lean CLAY with gravel (CL). The near-surface deposits within the subject property are mapped by both Coogan and King (2006) and Coogan and King (2016) as consisting of Holocene and Pleistocene colluvium deposits (Qc) and landslide and colluvial deposits (Qmc). These deposits were observed in Borehole B-1 advanced as part of this investigation, and it is anticipated that this unit is underlying the proposed water tank site of the subject property. An in-depth discussion concerning the soils encountered in our excavations is provided below. Holocene and Pleistocene Colluvium Deposits (Qc): As discussed previously, colluvial deposits were observed in Borehole B-1 where they extended to the full depth of the exploration. Where Copyright © 2022 GeoStrata 12 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank observed, these deposits consisted of clay with minor to trace amounts of rounded fine to coarse sand. More specifically, these soils consisted of stiff to hard, brown to red brown Lean CLAY with sand (CL), Lean CLAY (CL), and Fat CLAY (CH). The stratification lines shown on the enclosed log represents the approximate boundary between soil types (Plate B-1). The actual in-situ transition may be gradual. Due to the nature and depositional characteristics of the native soils, care should be taken in interpolating subsurface conditions between and beyond the exploration locations. 5.3 GROUNDWATER CONDITIONS 5.3.1 Site Observations Groundwater was not encountered during the advancement of the borehole. The moisture content in the soils observed in the boreholes were moist to very moist. Laboratory tests indicate that the moisture content of the samples collected in the borehole ranged from 19.1 to 20.1 percent from 5 to 35 feet and the sample obtained from 40 feet had a moisture content of 45.5 percent. 5.3.2 Literature Review Based on our review of a report prepared by the Utah Geologic Survey titled “Hydrogeology of Morgan Valley, Morgan County, Utah” prepared by Wallace and others (2011), the main aquifer within Morgan Valley is located in the valley fill deposits. Over 100 wells were drilled throughout Morgan Valley and primarily within the overlying valley fill deposits as part of the study. Based on our review of the State of Utah Division of Water Rights well log database, two wells are located within the vicinity of the subject site (Plate A-9 Hydrologic Data). The National Hydrology Dataset identifies several springs upslope and east of the subject site. Based on our review of the State of Utah Division of Water Rights well log database, Wallace and others (2011) and the National Hydrology Dataset, it is anticipated that the depth to groundwater within the subject site is at an elevation of approximately 5,119 feet above sea level, however, seasonal perched groundwater is likely to occur at the site. 5.4 INTERPRETATION OF SUBSURFACE CONDITIONS Based on our review of published geologic maps, aerial stereosets, hillshades derived from 2020 0.5-meter lidar, subsurface investigation and field observations, GeoStrata has compiled a geologic cross section of Cross Section A-A’ (Plate A-9) that was used as part of our site- Copyright © 2022 GeoStrata 13 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank specific slope stability assessment, as discussed in Sections 6.2 Global Stability of Natural Slopes and 6.3 Stability of Natural Slopes. As previously discussed, the subsurface conditions encountered at the proposed location of the water tank consisted of colluvium deposits (Qc) as mapped by Coogan and King (2005) and Coogan and King (2016). These deposits were observed to extend the entire depth of our subsurface investigation, approximately 40 feet. No bedrock was encountered during our subsurface investigation; however, it is our opinion that the colluvium deposits (Qc) overlie the Younger unnamed Tertiary Conglomerate (Tcy) at depth. We derived the thicknesses and orientations of these deposits as indicated on Plate A-9 Cross-Section A-A’ from our field observations, with consideration given to the thickness and orientation of each deposit as reported by Coogan and King (2005) and Coogan and King (2016). 5.5 STRENGTH OF EARTH MATERIALS Two direct shear tests were completed on a remolded sample of the native soil, colluvium (Qc), encountered in the borehole. As such, our direct shear testing was completed on specimens that had been remolded to anticipated in-situ moisture and density conditions. The results of our remolded direct shear testing completed on samples obtained from borehole B-1 indicated that the colluvium (Qc) had strength parameters consisting of an internal angle of friction (phi) of between 21 to 32 degrees and a cohesion between 475 and 4030 psf. A table summarizing the results of our testing may be found below; Test Type Location Material Friction Angle (phi) (degrees) Cohesion (psf) Peak Strength B-1 @ 7.5 feet Lean CLAY (CL)/ Colluvium (Qc) 32 475 Peak Strength B-1 @ 40 feet Fat CLAY (CH)/ Colluvium (Qc) 21 4030 As previously stated, no bedrock was encountered during our subsurface investigation. However, it is our opinion that based on our review of published geologic maps the colluvium (Qc) overlies Tertiary Conglomerate (Tcg, Tcy) at some depth below the subject site. As such, the assigned strength values for the Younger unnamed Tertiary conglomerate bedrock (Tcy) unit were based on result of the testing completed because it is a conservative approach to the soil strength values of the known strength values of conglomerate bedrock obtained from published literature (Wyllie and Mah, 2005). Furthermore, the alluvium and colluvium (Qac) unit was also not encountered Copyright © 2022 GeoStrata 14 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank during our subsurface investigation. Since the alluvium and colluvium (Qac) has similar characteristics to the colluvium (Qc) that was encountered during our subsurface investigation, the strength values of the colluvium (Qc) unit were applied to the alluvium and colluvium (Qac) unit. The cohesion values assigned to the alluvium and colluvium (Qac) and colluvium (Qc) units were reduced from the results of the direct shear testing in our slope stability analysis since these units are undifferentiated from mass-movement deposits. Based on the results of our laboratory testing as well as on our professional experience, GeoStrata has elected to assign the following soil strength parameters to the referenced geologic soil units: Soil Unit Unit Weight (pcf) Friction Angle (phi) (degrees) Cohesion (psf) Colluvium (Qc) 120 21 100 Alluvium and Colluvium (Qac) 120 21 100 Younger Unnamed Tertiary Conglomerate (Tcy) 120 21 100 Copyright © 2022 GeoStrata 15 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 6.0 GEOLOGIC HAZARDS Geologic hazards are defined as naturally occurring geologic conditions or processes that could present a danger to human life and property. These hazards must be considered before development of the site. There are several hazards that if present at the site should be considered in the design of habitable structures and other critical infrastructure. Based on Title 8 Chapter 5 Article I of the Morgan County Code and our preliminary geologic assessment of the site, the geologic hazards considered for this site are slope stability and landslide. This hazard will be discussed in more detail in the preceding paragraphs. 6.1 LANDSLIDE, SLUMP, CREEP There are several types of landslides that should be considered when evaluating geologic hazards at a site with moderately to steeply sloping terrain. These include shallow debris slides, deep- seated earth or rock slumps and earth flows. Landslides, slumps, creep and other mass movements can develop on moderate to steep slopes where the slope has been altered or disturbed. Movement can occur at the top of a slope that has been loaded by fill placement, at the base of a slope that has been undercut, or where local groundwater rises resulting in increased pore pressures within the slope. Slopes that exhibit prior failures and large landslide deposits are particularly susceptible to instability and reactivation. Based on our field observations, review of hillshades derived from 2020 0.5 meter lidar, published geologic maps, and aerial stereosets, landslide deposits (Qms, Qmso) are mapped upslope and to the north and south of the proposed water tank site. Colluvium (Qc) is identified as underlying the location of the proposed water tank and based on Title 8 Chapter 5 Article I of the Morgan County Code, a slope stability assessment for the proposed water tank should be performed as part of this geologic hazards investigation which will be discussed in Section 6.2 Global Stability of Natural Slopes and Section 6.3 Near Surface Stability of Natural Slopes of this report. It is the opinion of GeoStrata that the landslide, slump, and creep hazard at the site is considered low and should not preclude the proposed development at the subject site as long as the recommendations presented in this report are followed. 6.2 GLOBAL STABILITY OF NATURAL SLOPES The topography of the site consists of a maximum 4H:1V (horizontal to vertical) grade for 300 feet uphill and downhill from the proposed water tank location. The global stability of the slope stability profile was modeled using the SLIDE computer application and the Bishop’s Simplified Copyright © 2022 GeoStrata 16 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Method of analysis. Calculations for stability were developed by searching for the minimum factor of safety for a circular-type failure. Homogenous earth materials and arcuate failure surfaces were assumed. Topographic information for the profiles was obtained using 2020 0.5- meter lidar provided by the State of Utah UGRC. Slope stability analysis was performed for both the static and pseudo-static (seismic) conditions. The pseudo-static assessment was completed utilizing the peak ground acceleration (PGA) associated with a 2 percent chance of exceedance in 50 years (2PE50). Based on seismic design parameters for the site (IBC, 2018), a 2PE50 PGA value of 0.337g was utilized in our analysis (see Section 4.4). Strength parameters for the soils located at the subject property were obtained utilizing the results of a direct shear testing, and assumed values based on our fieldwork completed as part of this investigation and published literature as discussed in Section 5.6 of this report. Groundwater was not encountered in any of the explorations advanced as part of this investigation. Furthermore, based on our review of hydrologic data within the area of the subject site, the depth to groundwater within the subject site is approximately 5,119 feet below sea level and approximately 390 feet below the ground surface at the subject site. Review of the in-situ moisture conditions as measured during our laboratory testing did not indicate the presence of any perched groundwater units (moisture content with a maximum of 45.0 percent). During our field investigation, GeoStrata did not observe vegetation indicative of perched groundwater or water saturated soils. However, GeoStrata has modeled a perched groundwater table approximately 5 feet deep perched on the Younger unnamed Tertiary conglomerate bedrock as a conservative condition in the slope stability analysis. The results of our slope stability investigation are as follows: Cross Section A-A’ Factor of Safety Profile Failure Type Static Pseudo Static A Circular 1.760 1.341 Based on the results of our global slope stability analysis described above, the global stability meets the industry standard of care recommended factors of safety of 1.5 and 1.0 for static and Copyright © 2022 GeoStrata 17 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank pseudo-static conditions, respectively. Results of our slope stability modeling may be found on Plates D-1 and D-2 attached to the end of this report. 6.3 NEAR SURFACE STABILITY OF NATURAL SLOPES The near-surface slope stability analysis was completed on the native slope due to the slope between 4H:1V and 10H:1V. Based on our observations made during our field investigation, the soils contained within this slope were identified as consisting of colluvium (Qc), and as such our analysis utilized the following parameters; Cohesion, c (psf) Saturated Unit Weight, γsat (pcf) Height (thickness) of slope, H (feet) Slope angle, β (degrees) Effective Unit Weight, γ' (pcf) Internal Angle of Friction φ (degrees) 100 120 4 14 57.6 21 Our analysis utilized an infinite-slope procedure outlined by Das (1988). Based on the results of our infinite slope modeling, the site has a factor of safety for near-surface slope stability of 1.6. Based on this result, the potential for the slope below the proposed residence to be impacted by near-surface slope stability is considered to be low. GeoStrata may need to complete additional slope stability analyses depending on the planned grading and site improvements. GeoStrata can provide the developer with recommendations to maintain proper slope stability and factor of safety at the owner’s request if deemed necessary. Copyright © 2022 GeoStrata 18 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 7.0 GEOLOGIC HAZARDS SUMMARY AND CONCLUSIONS The landslide, slump and creep hazard within the subject site was assessed as part of this study. Based on the results of our slope stability analysis described above, the site meets the industry standard of care recommended factors of safety of 1.5 and 1.0 for static and pseudo-static conditions, respectively. Since final design plans were not available to GeoStrata at the time this report was prepared, GeoStrata should be contacted to review all proposed cut and fill and all other site grading plans for the proposed development of the site. GeoStrata may need to complete additional slope stability analyses depending on the planned grading and site improvements. GeoStrata can provide the developer with recommendations to maintain proper slope stability and factor of safety at the owners request if deemed necessary. It is the opinion of GeoStrata that the landslide, slump and creep hazard should not preclude the proposed development at the subject site as long as the recommendations stated above are implemented. Copyright © 2022 GeoStrata 19 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 8.0 CLOSURE 8.1 LIMITATIONS The conclusions and recommendations contained in this report, which include professional opinions and judgments, are based on the information available to us at the time of our evaluation, the results of our field observations and our understanding of the proposed site development. If any conditions are encountered at this site that are different from those described in this report, our firm should be immediately notified so that we may make any necessary revisions to recommendations contained in this report. In addition, if the scope of the proposed development changes from that described in this report, our firm should also be notified. All services were completed in accordance with the current standard of care and generally accepted standard of practice at the time and in the place our services were completed. No other warranty, expressed or implied, is made. Development of property in the immediate vicinity of geologic hazards involves a certain level of inherent risk. It is impossible to predict where geologic hazards will occur. New geologic hazards may develop and existing geologic hazards may expand beyond their current limits. All services were performed for the exclusive use and benefit of the above addressee. No other person is entitled to rely on GeoStrata’s services or use the information contained in this letter without the express written consent of GeoStrata. We are not responsible for the technical interpretations by others of the information described or documented in this report. The use of information contained in this report for bidding purposes should be done at the Contractor's option and risk. Copyright © 2022 GeoStrata 20 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank 9.0 REFERENCES CITED Black, B.D., Hecker, S., Hylland, M.D., Christenson, G.E., and McDonald G.N., 2003, Quaternary Fault and Fold Database and Map of Utah: Utah geological Survey Map 193DM. Bowman, S.D., Lund, W.R., 2016, Guidelines for Investigating Geologic Hazards and Preparing Engineering-Geology Reports, with a Suggested Approach to Geologic-Hazard Ordinances in Utah: Utah Geological Survey, Circular 122, p. 195. Coogan, J.C., King, J.K., 2016, Interim Geologic Map of the Ogden 30’ X 60’ Quadrangle, Box, Elder, Cache, Davis, Morgan, Rich, and Summit Counties, Utah: Utah Geological Survey Map OFR 653DM, scale: 1:100,000. Coogan, J.C., King, J.K., 2005, Interim Geologic Map of the Durst Mountain Quadrangle, Morgan and Weber Counties, Utah: Utah Geological Survey Map Open File Report 498, scale: 1:24,000. Elliot, A.H., Harty, K.M., 2010, Landslide Maps of Utah, Ogden 30’ X 60’ Quadrangle: Utah Geological Survey Map 246DM. Hintze, L.F. 1993, Geologic History of Utah, Brigham Young University Studies, Special Publication 7, p 202. Hintze, L.F., 1980, Geologic Map of Utah: Utah Geological and Mineral Survey Map-A-1, scale 1:500,000. Hoek, E., Corkum, B., 2002, Hoek-Brown Failure Criterion, 2002 Edition, Proc. Rock Characterization Symp. Int. Soc., Rock Mech: Hoek, E., Carter, T.F., Diederichs, M.S., 2013, Quantification of the Geological Strength Index Chart, American Rock Mechanics Association, Professional Paper ARMA 13-672. Legette, R.M., Taylor, G.H., 1937, Water-Supply Paper 796-D, Geology and Ground-Water Resources of Ogden Valley, Utah: Department of Interior, p 130. Scott, W.E., McCoy, W.D., Shorba, R.R., and Rubin, Meyer, 1983, Reinterpretation of the exposed record of the last two cycles of Lake Bonneville, western United States: Quaternary Research, v.20, p 261-285. Smith, R.B., and Arabasz, W.J., 1991, Seismicity of the Intermountain Seismic Belt, in Slemmons, D.B., Engdahl, E.R., Zoback, M.D., and Blackwell, D.D., editors, Neotectonics of North America: Geological Society of America, Decade of North American Geology Map v. 1, p. 185-228. Copyright © 2022 GeoStrata 21 1712-001 - Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Stokes, W.L., 1986, Geology of Utah: Utah Museum of Natural History and Utah Geological and Mineral Survey Occasional Paper Number 6, p 280. U.S. Geological Survey and Utah Geological Survey, 2016, Quaternary fault and fold database for the United States, accessed December 2019, from USGS website: http//earthquake.usgs.gov/hazards/qfaults/. Wallace, J., Lowe, M., Sabbah, W., Thomas, K., 2011, Hydrology of Morgan Valley, Morgan County, Utah, Utah Geological Survey. Wyllie, D.C., Mah, C.W, 2005, Rock Slope Engineering, Civil and Mining, 4th Edition. Appendix A 1:24,000 0 1,300 2,600 3,900 5,200650 Feet Copyright, 2022± PlateA-1 Basemap: 2018 1 meter NAIP aerial imagery and hillshades derived from DEMs provided by the State of Utah AGRC. Site Vicinity Map Legend Proposed Location of Water Tank §¨¦84 Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 1:24,000 0 1,300 2,600 3,900 5,200650 Feet Copyright, 2022± PlateA-2 Topographic Map Legend Proposed Location of Water Tank Basemap: Snow Basin Quadrangle adn Durst Mountain Quadrangle, Utah, 7.5-Minute Series (Topogrpahic), USGS, 1992. Hillshades derived from DEMs provided by the State of Utah AGRC. Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 1:6,000 0 325 650 975 1,300162.5 Feet Copyright, 2022± PlateA-4 Legend Proposed Location of Water Tank Drainage Basemap: Hillshades derived from 2020 0.5m lidar provided by the State of Utah AGRC. Hillshade Map Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 1:6,000 0 325 650 975 1,300162.5 Feet Copyright, 2022± PlateA-4 Legend Proposed Location of Water Tank Basemap: Slope derived from 2020 0.5m lidar provided by the State of Utah AGRC. Slope Map Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 @A A A' B-1 5700' 5490' 1:6,000 0 325 650 975 1,300162.5 Feet Copyright, 2022± PlateA-5 Legend Proposed Location of Water Tank @A Approximate Boring Location Cross Section A-A' 10ft Contour 2ft Contour Basemap: Slope and hillshades derived from 2020 0.5m lidar provided by the State of Utah AGRC. Proposed Exploration Location Map Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 1:24,000 0 1,300 2,600 3,900 5,200650 Feet Copyright, 2022± PlateA-6 Basemap: Interim Geologic Map of the Snow Basin and Part of the Huntsville Quadrangle, Davis, Morgan, and Weber Counties, Utah, King and others, 2008. Interim Geologic Map of the Durst Mountain Quadrangle, Morgan and Weber Counties, Utah, Coogan and King, 2006. Site Vicinity Geologic Map 1:12,000 0 650 1,300 1,950 2,600325 Feet Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 Legend Proposed Location of Water Tank Qc - Colluvium (Holocene and Pleistocene) Qac - Alluvium and colluvium (Holocene and Pleistocene) Tcg, Tcy - Tertiary conglomerate rocks (Oligocene?) y where younger congloerates are observed (Miocene?) 0 1,300 2,600 3,900 5,200650 Feet Copyright, 2022± PlateA-7 1:24,000Basemap: Interim Geologic Map of the Snow Basin and Part of the Huntsville Quadrangle, Davis, Morgan, and Weber Counties, Utah, King and others, 2008. Interim Geologic Map of the Durst Mountain Quadrangle, Morgan and Weber Counties, Utah, Coogan and King, 2016. Site Vicinity 30x60 Geologic Map Qmso Qac 1:12,000 0 650 1,300 1,950 2,600325 Feet Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 Legend Proposed Location of Water Tank Qmc - Landslide and colluvial (Holocene and Pleistocene) Qmso - Older landslide deposit (Pleistocene) Qac - Alluvim and colluvium (Holocene and Pleistocene) Tcg, Tcy - Tertiary conglomerate rocks (Oligocene?) y where younger congloerates are observed (Miocene?) A A A AA A A A AAAA A A A AA AA AAAAAA A A Groundwater Elevation: 5,119' NO Groundwater Encountered Depth of Borehole: 5,107' 1:48,000 0 2,600 5,200 7,800 10,4001,300 Feet Copyright, 2022± PlateA-8 Basemap: 2018 1 meter NAIP aerial imagery and hillshades derived from DEMs provided by the State of Utah AGRC. Hydrology Map Legend Proposed Location of Water TankASpring (National Hydrology Dataset) A Well (Utah Division of Water Rights) §¨¦84 Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 Plate A-9 Geologic Hazards and Geotechnical Investigation MCCWDG Water Tank Mountain Green, UT Project Number: 1712-001 Copyright GeoStrata , 2022 A’ A Tcy Qc Qac Appendix B 21 16 30 55 82.9 91.4 89.8 86.5 38 31 47 79 TOPSOIL - Lean CLAY with gravel, moist, brown to red-brown, rounded cobbles and gravels Lean CLAY with sand - stiff to hard, moist, brown, plastic fines Lean CLAY - stiff, moist, red-brown, plastic fines Fat CLAY - medium stiff, moist, gray, plastic fines Bottom of Boring @ 41.5 Feet CL CL CH 19.2 20.7 20.0 20.1 45.5 100.7 103.8 103.2 100.1 86.0 100.7 103.8 103.2 100.1 86.0 15 36 14 9 10 10 14 15 11 7 25 53 19 11 12 12 15 14 10 6 19.2 20.7 20.0 20.1 45.5 102030405060708090SA M P L E S DEPTH MATERIAL DESCRIPTION Liquid Limit N Moisture Content Pl a s t i c i t y I n d e x Project Number 1712-001 102030405060708090 3/23/22 3/23/22 3/23/22 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Plate Copyright (c) 2022, GeoStrata GeoStrata Rep: Rig Type: Boring Type: - ESTIMATED Li q u i d L i m i t UN I F I E D S O I L CL A S S I F I C A T I O N N - OBSERVED UNCORRECTED BLOW COUNT SAMPLE TYPE GR A P H I C A L L O G 0 5 10 15 20 25 30 35 40 B - 1 Moisture Content and Atterberg Limits Mo i s t u r e C o n t e n t % Sheet 1 of 1 Plastic Limit N* Pe r c e n t m i n u s 2 0 0 ME T E R S STARTED: COMPLETED: BACKFILLED: WATER LEVEL - MEASURED - 2" O.D./1.38" I.D. SPLIT SPOON SAMPLER - 3" O.D./2.48" I.D. SAMPLER - 3" O.D. THIN-WALLED SHELBY SAMPLER - GRAB SAMPLE - Modified California Sampler N* - CORRECTED N1(60) EQUIVALENT SPT BLOW COUNT LOCATION LATITUDE LONGITUDE ELEVATION -111.7421 deg 5,510.0 ft Notes: Near Center of the Proposed Water Tank SPT BLOW COUNTFE E T BORING NO: B-1DA T E Dr y D e n s i t y ( p c f ) WA T E R L E V E L NOTES: Roof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah C. Allred Direct Push HSA 41.1449 deg 20 2 0 L O G O F B O R I N G - P L A T E ( B ) B O R E H O L E L O G . G P J G E O S T R A T A . G D T 5 / 4 / 2 2 Very Loose 0 to 4 Loose 5 to 10 Med. Dense 11 to 30 Dense 31 to 50 Very Dense >51 Very Soft 0 to 1 Soft 2 to 4 Med. Stiff 5 to 8 Stiff 9 to 15 Very Stiff 16 to 30 Hard 31 to 60 Very Hard >61 Organic Description Percentage Trace less than 5 Organic Some 5 to 12 With more than 12 Rock Core Relative Density SPT N (blows/ft) Exploration Log Key Estimated Groundwater Elevation Sample Symbols Measured Groundwater Elevation Ground Water Symbol Gravel with Fines Modified California Sampler FI N E - G R A I N E D S O I L S 50 % o r m o r e p a s s e s N o . 2 0 0 S i e v e Unified Soil Classification Per ASTM D 2488 Primary Divisions Highly Organic Soils Clean Sand Sand with Dual Classifications Sand with Fines Inorganic Inorganic SI L T Y & C L A Y le s s t h a n 5 0 % SI L T Y & CL A Y LL 5 0 % o r m o r e Group Symbol Copyright GeoStrata, 2022 Modifiers Consiste ncy SPT N (blows/ft) Auger Cuttings California Sampler Bag or Block Sample No Recovery Split Spoon Shelby Tube Dames and More Sampler GR A V E L Mo r e t h a n h a l f o f t h e c o a r s e f r a c t i o n i s l a r g e r th a n t h e # 4 s i e v e SA N D Mo r e t h a n h a l f o f t h e c o a r s e f r a c t i o n i s s m a l l e r th a n t h e # 4 s i e v e CO A R S E - G R A I N E D S O I L S mo r e t h a n 5 0 % r e t a i n e d o n t h e N o . 2 0 0 S i e v e Clean Gravel Gravel with Duel Classifications Group Name Soil Symbols and Description Key Plate B-2 Roff Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 Appendix C 0 10 20 30 40 50 60 0 20 40 60 80 100 ATTERBERG LIMITS' RESULTS - ASTM D 4318 LIQUID LIMIT (%) PL A S T I C I T Y I N D E X ( % ) B-1 B-1 B-1 B-1 LL (%) PL (%) PI (%) Fines (%)Classification 21 16 30 55 17 15 17 24 38 31 47 79 CL-ML CH Sample Location 7.5 20.0 35.0 40.0 Lean CLAY with sand Lean CLAY Lean CLAY Fat CLAY Depth (ft) CL ML MH 82.9 91.4 89.8 86.5 PlateRoof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 C - 1 C_ A T T E R B E R G B O R E H O L E L O G . G P J G E O S T R A T A . G D T 5 / 4 / 2 2 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 0 2 4 6 8 10 12 104 21 Max. Shear Stress (psf) B-1 *SHEAR STRESS is equal to one half of the DEVIATOR STRESS UNCONFINED COMPRESSION TEST Depth (ft) 7.5 AXIAL STRAIN (%) Sample Location Classification MC (%)(pcf) Lean CLAY with sand PlateRoof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 6467.5 C - 2 DE V I A T O R S T R E S S ( p s f ) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 0 2 4 6 8 10 103 21 Max. Shear Stress (psf) B-1 *SHEAR STRESS is equal to one half of the DEVIATOR STRESS UNCONFINED COMPRESSION TEST Depth (ft) 20.0 AXIAL STRAIN (%) Sample Location Classification MC (%)(pcf) Lean CLAY PlateRoof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 6247.5 C - 3 DE V I A T O R S T R E S S ( p s f ) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 0 2 4 6 8 10 73 48 Max. Shear Stress (psf) B-1 *SHEAR STRESS is equal to one half of the DEVIATOR STRESS UNCONFINED COMPRESSION TEST Depth (ft) 40.0 AXIAL STRAIN (%) Sample Location Classification MC (%)(pcf) Fat CLAY PlateRoof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 5838 C - 4 DE V I A T O R S T R E S S ( p s f ) Sample Location: 1 ( )2 ( )3 ( ) 1.107 1.082 1.075 2.5 2.5 2.5 99.0 99.4 102.7 100.7 101.0 104.4 24.2 23.8 25.3 26.6 27.7 27.8 95.9 94.9 109.7 109.7 115.4 125.9 2.0 1.0 0.5 2.0 1.65 1.33 0.63 1.6 PROJECT: B-1 at 7½ feet 0.00333 IN/MIN Percent Passing No. 200 sieve Friction Angle, φ Percent Gravel 32 17.1 - Percent Sand Plasticity Index, % Test No. (Symbol) Sample Type Dry Density Before, pcf Shear Stress, ksf Saturation, % After Normal Load, ksf Saturation, % Before DIRECT SHEAR TEST 21 Remolded 475Cohesion, psf Initial Height, in. Diameter, in. Liquid Limit, % Type of Test:Consolidated Drained/Saturated Dry Density After, pcf Moisture % After 38 Moisture % Before Strain Rate Sample Properties Plate C-51212-001PROJECT NO.: 82.9 MCCWDG Water Tank CLClassification 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 SH E A R S T R E S S ( k s f ) NORMAL STRESS (ksf) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 0.1 0.2 0.3 0.4 0.5 SH E A R S T R E S S ( k s f ) HORIZONTAL DISPLACEMENT (inches) Apparent Cohesion = 475 psf Internal Friction Angle, ø = 32° Copyright GeoStrata , 2022 Sample Location: 1 ( )2 ( )3 ( ) 1.182 1.213 1.2 2.5 2.5 2.5 89.8 89.3 91.4 91.2 90.7 92.9 4.7 4.9 2.3 39.0 36.3 26.0 14.7 15.3 7.4 127.1 116.8 88.5 4.0 2.0 1.0 4.0 5.54 4.93 4.33 5.5 PROJECT: B-1 at 40 feet 0.00333 IN/MIN Percent Passing No. 200 sieve Friction Angle, φ Percent Gravel 21 13.5 - Percent Sand Plasticity Index, % Test No. (Symbol) Sample Type Dry Density Before, pcf Shear Stress, ksf Saturation, % After Normal Load, ksf Saturation, % Before DIRECT SHEAR TEST 55 Remolded 4030Cohesion, psf Initial Height, in. Diameter, in. Liquid Limit, % Type of Test:Consolidated Drained/Saturated Dry Density After, pcf Moisture % After 79 Moisture % Before Strain Rate Sample Properties Plate C-61212-001PROJECT NO.: 86.5 MCCWDG Water Tank CHClassification 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 SH E A R S T R E S S ( k s f ) NORMAL STRESS (ksf) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 0.1 0.2 0.3 0.4 0.5 SH E A R S T R E S S ( k s f ) HORIZONTAL DISPLACEMENT (inches) Apparent Cohesion = 4030 psf Internal Friction Angle, ø = 21° Copyright GeoStrata , 2022 Appendix D 1.7601.760 W W 2500.00 lbs/ft2 1.7601.760 Material Name Color Unit Weight (lbs/ 3)Strength Type Cohesion (psf) Phi (deg) Younger unnamed Ter ary Conglomerate (Tcy)120 Mohr-Coulomb 100 21 Colluvium (Qc)120 Mohr-Coulomb 100 21 Alluvium and Colluvium (Qac)120 Mohr-Coulomb 100 21 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 64 0 0 62 0 0 60 0 0 58 0 0 56 0 0 54 0 0 52 0 0 50 0 0 0 200 400 600 800 1000 1200 Plate D-1 Roof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 Global Slope Stability Copyright, 2022 1.3411.341 W W 2500.00 lbs/ft2 1.3411.341 Material Name Color Unit Weight (lbs/ 3)Strength Type Cohesion (psf) Phi (deg) Younger unnamed Ter ary Conglomerate (Tcy)120 Mohr-Coulomb 100 21 Colluvium (Qc)120 Mohr-Coulomb 100 21 Alluvium and Colluvium (Qac)120 Mohr-Coulomb 100 21 0.1685 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 64 0 0 62 0 0 60 0 0 58 0 0 56 0 0 54 0 0 52 0 0 50 0 0 0 200 400 600 800 1000 1200 Plate D-2 Roof Top Developers, LLC MCCWDG Water Tank Mountain Green, Utah Project Number: 1712-001 Global Slope Stability Copyright, 2022