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Home My WebLink AboutDSHW-2025-001296 MEMORANDUM DATE: March 5, 2025 TO: Utah DEQ Waste Management and Radiation Control FROM: Micklane Farmer and Justin Telfer PROJECT: Sevier County Sage Flat Landfill Permit Modification PROJECT NO: 2411-046 RE: Application for Permit Modification Documents Included with this Permit Modification Submission 1. Permit Modification Memorandum 2. Updated Landfill Plan of Operations 3. Exemption Request Letter 4. Landfill Maps, Drawings, and Details 5. NWI Map of the Landfill 6. State Historic Preservation Society Letter 7. Construction QC/QA Included in This Memorandum 1. Introduction 2. Permit Modifications 3. Regulation Exemption Request 4. Location Standards 5. Run-on and Run-off Control Introduction The Sevier County Sage Flat Landfill is requesting a permit modification to allow the acceptance of high liquid waste (HLW) and creation of new dead animal cells. The attached application includes an updated plan of operations with a HLW management plan, a site map, construction drawings, and construction details. Included in this memorandum is updated information on the landfill’s location standards. March 5, 2025 Page 2 Permit Modifications High Liquid Waste Modification Sevier County is requesting that the Sage Flat Landfill’s permit be modified to allow for the acceptance of HLW. Businesses in Sevier County currently have no close disposal options for these HLW. Modifying the landfill permit to allow these wastes will reduce costs to local businesses and reduce health issues due to improperly disposed waste. It is being requested that the permit be modified to include acceptance of the following types of HLW: • Grease trap waste and related byproducts • Car wash sump waste • Blood waste It is estimated that the landfill will receive 4,000 gallons of liquid waste per week with a load Monday through Friday. The landfill already accepts pre-solidified blood and plans to continue requiring solidification by the generator. The amount of liquid blood accepted is likely to be near zero because of this. The Plan of Operations for the landfill has been updated with a HLW Management Plan and operating procedures for the acceptance of this waste. The updated Plan of Operations along with construction drawings and details are included in this submission. High Liquid Waste Site Design The landfill will need to construct a concrete mixing pad for the HLW site. Details for the pad are included with the construction drawings. The pad is designed to accept the entire estimated weekly liquid waste at once without overtopping. However, the entire anticipated weekly waste will never come in a single load. The concrete pad will be impermeable and be designed to maintain integrity under operation of heavy equipment. To maintain the impermeable nature of the pad, the concrete mixture will include a crack sealant such as Xypex. This will prevent unwanted seepage in the event of concrete cracking. Therefore, this containment system has a permeability less than 1x10-7 cm/s. High Liquid Waste Site Costs The cost to build the pad is estimated to be $35,000. The landfill expects to receive 4,000 gallons of HLW per week. Operational costs for the HLW site were estimated based on five liquid loads of 800 gallons per week requiring 2 hours per load. The estimated operational costs are shown in Table 1. Table 1. High Liquid Waste Operational Costs Loads per Week 5 Time per Load (hr) 2 Employee Cost ($/hr) 35 Equipment Cost ($/hr) 55 Weekly Cost $180 Yearly Cost $9,360 March 5, 2025 Page 3 Additional Dead Animal Cells The landfill’s current permit allows for the acceptance of dead animal products. However, the cells are at capacity and more space is needed. A large slaughterhouse in Richfield has increased the amount of animal products that are being sent to the landfill, necessitating the new cells. If the landfill cannot open more dead animal cells the slaughterhouse will be required to transport the waste long distances and put a financial strain on the operation of the plant. A separate application is being sent to the state for the landfill to better handle the animal waste products through a composting operation. New dead animal cells will allow the landfill to handle the slaughterhouse waste in the interim of the compost site approval. A site overview as well as construction drawings and details for the new dead animal cells are included with this submission. The landfill has space for 7 new dead animal cells southwest of the existing green waste site. The new cells will be a maximum of 30 feet deep, 30 feet wide at the bottom, and have 1:1 side slopes. Changes Made to Plan of Operations The landfill’s existing Plan of Operations is 20 years old and does not reflect slight changes that have been made over time. The following changes were made to the document to better describe current landfill operations: • Updated the Operational Procedures section: o Include procedures for animal waste pits and the HLW site. • Updated the Waste Handling Procedures section: o Added PCBs and HLW to the wastes excluded section. o Added a section stating that pre-solidified blood is being accepted. o Updated the description of where gate operators direct waste loads. o Updated the site’s operating hours. • Added litter control procedures for the animal pits and HLW area. • Updated the recycling program section to show the landfill collects metal, batteries, and tires that are taken away by a contractor. • Added a HLW section with a subsection on the use of alternative daily cover. • Updated the alternative waste handling section to show what will happen to the compost material and grease trap waste if those sites are unusable for any reason. • Updated the landfills equipment list. • Updated the Procedures for Controlling Disease Vectors section to include the HLW. • Updated record keeping section to include the paint filter testing form, TCLP test result form, and daily cover use form. Regulation Exemption Request As part of this permit modification request the landfill is asking for exemptions to R315-303-4(4)(c) and R315-312-2(3)(a). A letter documenting this request is included with this submission. March 5, 2025 Page 4 Location Standards While not required for existing facilities, location standard documentation for the proposed permit modification is included to aid in the permit approval process. Wetlands and Watercourses According to the National Wetlands Inventory (NWI) there are 2 ephemeral streams that cross the landfill. When the landfill was built the northern watercourse was conveyed through the site. The southern watercourse was left to drain naturally into the landfills drainage system. As part of the landfills compost site application a drainage ditch sized for the 25-year storm event will be constructed to better direct this watercourse. The ditch will be constructed according to details found in the landfill’s current operating permit and included in this submission. An NWI map of the landfill showing the two drainages is included with this submission. Surrounding Structures The Sevier County Sage Flat Landfill is located in a remote valley with no surrounding structures of any kind. The site map included with this submission shows that there are no permanent residences, schools, hospitals, institutions, office buildings, restaurants, churches, or structures of any kind within 500 feet of the landfill. Historic Preservation A notice of concurrence from the state historic preservation officer showing no historic properties will be affected by the proposed changes is attached to this memorandum. Run-on and Run-off Control A hydrologic evaluation was completed for three areas as part of this application. Run-on analysis was performed for the ephemeral stream that crosses the landfill near the compost site and run-off analysis was performed for the compost and animal pit sites. The hydrology was completed following guidelines in the Natural Resources Conservation Services (NRCS) Urban Hydrology of Small Watersheds (also known as TR-55) and Chapter 15 of the NRCS National Engineering Handbook. Watersheds were delineated using the latest LiDAR from the Utah Geospatial Resource Center. Soil data was taken from SSURGO database found through the NRCS Web Soil Survey. Finally, landcover data was taken from the National Landcover Database. The compost site landcover was assumed to be a low permeability compacted clay liner while the animal pit site and ephemeral stream watersheds used natural land cover types. Hydrologic calculations were performed using the U.S. Army Corps (USACE) Hydrologic Engineering Centers Hydrologic Modeling System (HEC-HMS). The inputs and results of the hydrologic model are shown in Table 2. Table 2. Hydrologic Model Parameters and Results Watershed Compost Site Animal Pit Site Ephemeral Stream Drainage Area (acres) 8.5 10.7 3,846 Curve Number 91 63 70.8 Lag Time (min) 12 16 30 March 5, 2025 Page 5 Peak Flow (cfs) 1 1 69 Run-on/off Volume (ac-ft) 0.79 0.80 77.3 Ditches were modeled using the landfills existing details in the Federal Highway Administrations Hydraulic Toolbox. All constructed ditches will have 1 foot of freeboard above the estimated peak flow depths. The Hydraulic Toolbox calculations are shown in Figure 1, Figure 2, and Figure 3 for the Compost Site, Animal Pits, and Ephemeral Stream respectively. Finally, a retention basin was sized to handle the entire volume of run-off from the animal pit site. Figure 1. Compost Site Drainage Ditch Sizing Results March 5, 2025 Page 6 Figure 2. Animal Pit Site Drainage Ditch Sizing Results Figure 3. Ephemeral Stream Drainage Ditch Sizing Results SEVIER COUNTY SAGE FLAT CLASS I LANDFILL PLAN OF OPERATIONS March 5, 2025 Project #: 2411-046 Sevier County Jones & DeMille Engineering Project #: 2411-046 Sage Flat Landfill Plan of Operations Page i TABLE OF CONTENTS 1. Introduction .......................................................................................................................... 1 2. Operational Procedures ......................................................................................................... 1 2.1. Class I Site ................................................................................................................................... 1 2.2. Class IV Site ................................................................................................................................. 2 2.3. Dead Animal Site ......................................................................................................................... 2 2.4. High Liquid Waste Site ................................................................................................................ 2 3. Waste Handling Procedures ................................................................................................... 3 3.1. Litter Control ............................................................................................................................... 4 3.2. Recycling Programs ..................................................................................................................... 4 4. High Liquid Waste Management Plan ..................................................................................... 4 5. Use of Alternative Daily Cover ................................................................................................ 5 6. Alternative Waste Handling or Disposal Plan .......................................................................... 6 7. Landfill Inspections and Monitoring Schedule ......................................................................... 6 8. Leachate Monitoring .............................................................................................................. 6 9. Landfill Equipment ................................................................................................................. 7 10. Procedures for Controlling Disease Vectors ............................................................................. 7 10.1. Class I and IV Landfill Sites .......................................................................................................... 7 10.2. High Liquid Waste Site ................................................................................................................ 8 11. Training & Safety Plan for Site Operation ................................................................................ 8 12. Contingency Plans .................................................................................................................. 9 12.1. Fire or Explosion ......................................................................................................................... 9 12.2. Explosive Gas Release ................................................................................................................. 9 12.3. Failure of the Containment System .......................................................................................... 10 12.4. Groundwater ............................................................................................................................ 10 13. Record Keeping .................................................................................................................... 10 14. Reporting ............................................................................................................................ 10 Appendix A. Record Keeping Form Examples .................................................................................. A-1 Sevier County Jones & DeMille Engineering Project #: 2411-046 Sage Flat Landfill Plan of Operations Page ii TABLES Table 4-1. High Liquid Waste Operational Costs .......................................................................................... 4 Table 7-1. Inspection and Monitoring Schedule ........................................................................................... 6 Jones & DeMille Engineering Page 1 Project #: 2411-046 1. INTRODUCTION The purpose of this Plan of Operation is to provide a written description of the daily operation of the Sevier County Sage Flat Class I Landfill (the Landfill). A landfill is a dynamic system which undergoes regular development. Changes may occur in types and quantities of disposed materials, demographics of the service area, administrative and regulatory requirements. Landfill operations need to adapt to these changes while conserving landfill space, protecting human health, and protecting the environment. The intent of the Plan of Operation is to provide an accurate description of the daily operations and procedures of the Landfill. 2. OPERATIONAL PROCEDURES 2.1. CLASS I SITE The cells at the Class I site will be constructed in an orderly sequence from north to south. Each cell will be constructed in a phased approach. The phases will include: (1) marking the boundary of the area to be excavated; (2) stripping and stockpiling the topsoil layer for future final cover; (3) excavating a trench for disposal; (4)waste placement; (5) placing an intermediate cover over the waste; (6) placing a compacted embankment along the outside perimeter of the cell (7) placement of waste over the intermediate cover; and (8) placing a final cover of clay, native soil, topsoil, and vegetation over the entire disposal cell. The topsoil cover will be stripped to a minimum depth of 4 inches and stockpiled along the southern edge of the cell. Vegetation and debris will be removed from the topsoil. The material excavated from the trench will be stockpiled along the north edge of the vertical side slope to create a barrier to restrict access along the north edge of the trench. The soil berms will create a barrier to restrict access along the top of the side slopes. The working face of the trench (west end) and the equipment access (east end) will be constructed to a maximum slope of 3 horizontal to 1 vertical. Waste will be unloaded at the top of the working face, spread over the working face, and compacted. The native clay will be mixed with solid waste throughout daily placement. The unloading of waste will be restricted to one area of the working face to limit vehicular traffic and to limit the amount of waste exposed. The bottom of the trench will be lined with a minimum of 2 feet of compacted clay with a permeability no greater than 10-7 cm/sec. This clay material will be obtained from materials excavated on-site. The compacted clay layer at the bottom of the trench will be constructed in advance of the solid waste disposal. An intermediate cover will be placed over the solid waste once it has been placed to the level of the existing ground. The intermediate cover will consist of a minimum thickness of 18-inches of native soils previously stockpiled from trench excavation. The intermediate cover will be compacted to facilitate trafficability over the waste in the cells. Within the unloading area, a 6-inch layer of gravel will be placed Jones & DeMille Engineering Page 2 Project #: 2411-046 over the intermediate cover at the top of the working face to improve trafficability during inclement weather conditions. This gravel material is a temporary measure to improve access to the working face. A compacted embankment will be constructed around the outside edges of the cell. This will allow for additional waste to be placed above the existing ground surface. After the compacted embankment is in place, the waste will be placed over the intermediate cover. The final cover will consist of 18-inches of compacted clay with in-place permeability of no greater than 10-7 cm/sec. The compacted clay layer will be covered with 20 inches of material consisting of 14 inches of native soil and a 6-inch-thick topsoil layer will be placed over the top. The topsoil will be from the topsoil material previously stripped and stockpiled. The final cover will have a 3% cross slope and will be reseeded. 2.2. CLASS IV SITE The Class IV pits will be excavated up to ninety feet below the ground surface with 1:1 side slopes. Final cover material will be stockpiled during excavation of the pits. The final closure for the Class IV site will consist of 2 feet of cover, including 6-inches of topsoil, and followed by reseeding. 2.3. DEAD ANIMAL SITE The landfill has three completed dead animal pits with room for seven more to be excavated southwest of the green waste site. The pits will be up to thirty feet deep with 1:1 side slopes. The pits will be covered daily at the end of normal operating hours with a minimum of 6-inches of native soil. Material for the final cover will be stockpiled during excavation of the pits. The final closure for the animal pits will consist of 2 feet of cover, including 6-inches of topsoil, and followed by reseeding. All excavations will leave 10-feet of separation between neighboring pits. 2.4. HIGH LIQUID WASTE SITE The high liquid waste (HLW) site will consist of a concrete mixing pad, staging area, and alternative cover storage area. The mixing pad will be filled with loose soil before HLW will be sprayed or dumped onto the soil. A loader will then mix the liquid and soil. If insufficient soil is present to solidify the liquid, the loader will add sufficient native soil. The material will be tested and must pass the EPA Paint Filter Test before it will be removed from the mixing pad. The soil mixture will be stockpiled for later use as an alternative daily cover of the Class I cells. The stockpile area will be to the northwest of the mixing pad directly across the gravel roadway. Records will be kept for 7 years for all waste accepted, the paint filter test results, and the day the cover was used. All HLW will be dumped on the concrete mixing pad by the generator. To reduce generator wait time the landfill will require incoming loads call ahead for an appointment. In the event the concrete pad is currently full or in use the generator will be staged in the gravel lot next to the pad or asked to return at a later time. In the event that the landfill is unable to take liquid waste due to staffing or equipment issues all HLW loads will be rejected and the rejected loads noted on the daily operating record. Jones & DeMille Engineering Page 3 Project #: 2411-046 3. WASTE HANDLING PROCEDURES A member of the County Commission will always be designated as the Director of Solid Waste Services and have supervisory responsibility over the landfill. Daily operation of the landfill is under the direction of the landfill manager. When the landfill manager is absent, a senior operator will be designated to oversee the landfill. At the beginning of each working day, the Landfill Manager is responsible for informing his operators where to direct the various types of waste for disposal. The operator will direct each customer to the proper location for disposal of the waste. An operator or the landfill manager will be present whenever the landfill is open. The landfill has a scale for weighing waste loads that are brought to the landfill. The scale is located near the main entrance to the landfill next to the maintenance building. Each waste load is weighed prior to disposal. The landfill specifically excludes the following types of waste: o Hazardous waste as defined in R315-261-3 o PCBs as defined in R315-301-2(53) o Toxic waste o Chemical waste o White goods containing chlorofluorocarbons o High liquid waste not listed on the landfill permit The person at the gate and the person at the working face are each responsible for identification and prohibition of excluded waste materials. All employees will be trained in methods and techniques for spotting liquid waste, drums, waste in sealed containers, red-bag waste, and waste which exhibits unusual odors or markings. All such waste will be refused access to the landfill; if such waste is discovered on the working face, it will be segregated from the other waste pending alternative disposal. At least one percent of incoming loads are to be inspected. Loads will be selected at random by the operator at the gate. The vehicle will be stopped, and the operator will conduct as thorough an inspection as possible, looking specifically for prohibited waste materials. A “Waste Inspection Report” form (see Appendix A) will be completed and filed on every inspection conducted. The daily operating log also notes waste inspection conducted (see Appendix A). The Landfill Manager will have the ultimate authority and responsibility to decide whether to accept or reject waste material. Construction and demolition debris will be directed to the Class IV Landfill for disposal. Dead animal products will be directed to either the Counties on-site composting facility or the dead animal pits. Finally, any approved HLW will be directed to the liquid waste mixing pad. The landfill is open Monday through Saturday and is closed on Sundays and Holidays. The landfill will be open according to the following schedule. Jones & DeMille Engineering Page 4 Project #: 2411-046 3.1. LITTER CONTROL Clay is mixed with waste during daily placement to help reduce the amount of litter scattered by the wind. The Class I and IV landfill sites are also partially enclosed by a chain link fence. The fence helps stop litter from being blown away from the landfill site. At least once every two weeks, a work crew of inmates from the Sevier County Jail come to the landfill site and collect any scattered litter at the landfill. These measures help to control and collect litter. Litter generation at the animal pits and HLW areas will be minimal due to the types of waste present. However, similar litter prevention to the Class I and IV sites will be used at these sites. 3.2. RECYCLING PROGRAMS The landfill currently accepts metal, batteries, and tires for recycling. A contractor comes monthly to haul the metal and battery waste to a recycling center. Waste tires are collected by a contractor on an as needed basis or every 6 months. The collection and recycling of metal, batteries, and tires are managed in compliance with Solid Waste Permitting and Management Rules. 4. HIGH LIQUID WASTE MANAGEMENT PLAN It is estimated that the landfill will receive 4,000 gallons per week of HLW with one load per day Monday through Friday. Operational costs for the HLW site are shown below in Table 4-1. Table 4-1. High Liquid Waste Operational Costs Loads per Week 5 Time per Load (hr) 2 Employee Cost ($/hr) 35 Equipment Cost ($/hr) 55 Weekly Cost $180 Yearly Cost $9,360 No HLW other than the following types will be accepted by the landfill: • Grease trap waste and related byproducts • Car wash sump waste • Blood waste Signage outlining acceptable HLW types and associated disposal costs will be placed at the landfill entrance on existing signage and added to the county website. The county website will include detailed information on HLW acceptance including the types of material accepted, the types of material not accepted, forms to certify the waste is non-hazardous, and any applicable testing requirements. The Landfill Operating Hours 8:00 a.m. – 5:00 p.m. Monday – Friday 8:00 a.m. – 1:00 p.m. Saturday Jones & DeMille Engineering Page 5 Project #: 2411-046 landfill will require HLW generators to certify waste is free of hazardous materials or PCBs as outlined in R315-262. HLW will be subject to TCLP testing based on the testing schedule on the County Website. HLW loads will be subject to the EPA Paint Filter Test at the landfill’s discretion. If the material passes the test, it will be diverted to the Class I landfill face for disposal. Records of the paint filter and TCLP testing will be maintained and stored in the main landfill building. The following types of waste will not be accepted: • hazardous waste as defined in R315-261-3 • PCBs as defined in R315-301-2(53) • toxic waste • chemical wastes All liquid solidification will be performed on the site’s concrete mixing pad. The pad is designed to be impermeable to capture all liquid and allow no leachate or seepage. The solidification of Grease trap waste and car wash sump waste will be accomplished by mixing the waste with native soils. The mixing pad will be filled with native soil and the liquids dumped onto the soil. After mixing, the soil mixture will be evaluated with the EPA paint filter test before being removed from the pad. Any liquid seepage or leachate will be collected by the pad and solidified with future waste loads. The solidified waste will be removed from the mixing pad and stockpiled for use as an alternative daily cover. To reduce possible wait times, HLW generators will be required to call ahead with incoming loads. The landfill will communicate this need through the county website but will prepare to the best of their ability to accept unexpected HLW loads. In the event that the liquid waste pad is already in use or temporarily unavailable when a HLW load arrives the load will be staged in the gravel lot next to the pad until the pad is available. Pre-solidified blood is currently accepted by the landfill for disposal in the Class I cells. If the Counties on-site compost facility determines they need compostable materials, non-solidified blood and grease trap waste may be sent for composting. The blood or grease will be solidified on the mixing pad by immediately mixing with sawdust and woodchips. After passing the paint filter test the solidified material will be sent to the compost site for composting. If the compost site does not have sufficient material to solidify waste or does not need compostable material, liquid blood will not be accepted, and grease will be solidified as an alternative cover. 5. USE OF ALTERNATIVE DAILY COVER The facility will be using alternative daily cover consisting of a mixture of native soil and acceptable HLW. The alternative cover could include grease trap waste and related byproducts or car wash sump waste. Before being accepted the HLW will be certified by the generator as non-hazardous and TCLP testing will be conducted on selected waste loads as detailed on the county website. This will eliminate risks to operator health and safety as well as preventing threats to the environment. The solidified HLW will be used for daily cover Monday through Friday. As required by the landfill permit 6-inches of native soil cover will be used on Saturdays as the landfill is closed on Sundays. The solidified HLW will be used as alternative daily cover on Class I cells and will never be applied where subsequent waste or intermediate cover is not expected. If the alternative cover results in increased disease vectors, Jones & DeMille Engineering Page 6 Project #: 2411-046 odors, blowing litter, or scavenging activity, it will be covered with 6-inches native soil cover. Cover and alternative daily cover will be documented on daily operating records. 6. ALTERNATIVE WASTE HANDLING OR DISPOSAL PLAN The landfill has multiple pieces of equipment capable of performing each landfill task. If a unit of equipment is inoperable due to maintenance or repair, other equipment will be utilized to complete that task. The landfill site encompasses approximately 460 acres, providing sufficient space to designate an alternate area for temporary waste disposal in an emergency. If on-site roads become impassible, the Landfill Manager may temporarily close the site or restrict access to specific areas. During such closures, the Director of Solid Waste Services may place a bulk container at the landfill entrance for temporary use by residents until access is restored. 7. LANDFILL INSPECTIONS AND MONITORING SCHEDULE The schedule for inspections and monitoring of landfill facilities to ensure proper operation and maintenance is provided in Table 7-1. Table 7-1. Inspection and Monitoring Schedule Inspection/Monitoring Activity Frequency Windrow temperature Daily Access road conditions and maintenance As needed during operation Fence inspection and maintenance Monthly Post closure final cover inspection Monthly Run-on containment systems Monthly or following significant storm events Run-off containment system Monthly or following significant storm events Landfill equipment maintenance Per manufacturer recommendations and as needed Leachate sampling Semiannually Collection leachate monitoring Monthly – 1st year, semiannually thereafter Gas monitoring Quarterly High liquid waste collection area Monthly 8. LEACHATE MONITORING Leachate collection pipes will be installed in Class I cells to monitor any leachate generation. The collection pipes will be monitored monthly for the first year of cell operation and semiannually thereafter. Inspection and maintenance procedures for the leachate collection pipes will include a semiannual visual inspection. The visual inspection will include checking the leachate collection monitoring cover for cracks, shifting, or other damage. Damaged pipes will be repaired as necessary and practical. Jones & DeMille Engineering Page 7 Project #: 2411-046 Details of the inspection and maintenance activities will be recorded in a field notebook and copies will be kept on file at the main landfill building. This inspection/maintenance procedure will be conducted semiannually. After several years, if there is little or no leachate generated, the State may consider discontinuing leachate monitoring. Leachate collection closure will be performed only when one of the following criteria are met: 1) Post closure monitoring has been completed, or 2) The leachate collection system is damaged beyond repair, or 3) The leachate collection system is permanently abandoned. Leachate collection closure will be accomplished by pressure grouting, using sand, cement, and a bentonite slurry mixture to a maximum pressure of 125 psi. Grouting will be performed from the cleanout port back into the transfer pipe. The volume of slurry mixture pumped will be measured to determine the quantity of slurry injected into the transfer pipe. The standpipe will also be filled with the slurry mixture. 9. LANDFILL EQUIPMENT The Landfill operation owns and maintains the following pieces of heavy equipment: o John Deere 624k Loader o Caterpillar 938M Loader o Caterpillar 973 Track Loader o Caterpillar 826K Compactor o Caterpillar D8T Dozer o 2 Peterbilt Dump Trucks o GMC Service Truck o Ford F-250 Pickup o Kenworth T-300 Water Truck o Sheepsfoot Compactor Complete service is performed every 125 hours of operation. Lubrication only every 10-15 hours of operation. Service is performed according to the manufacturer’s recommendations. 10. PROCEDURES FOR CONTROLLING DISEASE VECTORS 10.1. CLASS I AND IV LANDFILL SITES Exclusion of specific types of solid waste will be necessary to control disease vectors and the subsequent spread of disease. Special wastes such as infectious waste and liquid waste, which may directly carry disease or lead to the propagation of disease vectors, will be excluded from the Class I site. Clay will be mixed with the waste at both sites to help control disease vectors. Dead animals will be received at the Class IV landfill; however, they will be buried at a separate location at the site and will be covered with a minimum of six inches of backfill material daily or upon disposal. Jones & DeMille Engineering Page 8 Project #: 2411-046 10.2. HIGH LIQUID WASTE SITE The HLW site will allow only waste deemed safe in the landfill permit. Careful monitoring of waste and exclusion of unacceptable waste will reduce disease vectors. The liquids will be dumped onto loose soil over a concrete mixing pad and immediately mixed to control disease vectors. The solidified liquid alternative cover will be used as soon as possible as an alternative daily cover to further control disease vectors. These procedures will prevent any liquid pooling at the site. 11. TRAINING & SAFETY PLAN FOR SITE OPERATION Each employee who works with solid waste at the landfill facility will be trained and have a working knowledge of basic maintenance and operational techniques necessary to operate and maintain the landfill facility in a manner which does not endanger human health and safety or environmental quality. Training will be accomplished through on-the-job training (OJT) and classroom training sessions. Training sessions will be sponsored by the Solid Waste Association of North America (SWANA). All operators and managers will complete at a minimum the following courses of instruction: “Landfill Operator Training,” and “Waste Screening at Municipal Solid Waste Landfills.” The training program will be directed by the facility manager, or a designated professional trainer. Initial on the job training will be completed within three months of employment followed by completion of SWANA courses within one year. TRAINING SCHEDULE A. Introductory Training (half hour minimum): Synopsis of solid waste regulations, record keeping, and transporter requirements. Requirement: All Personnel Method: OJT Review: Annual B. Policies and Procedures (half hour minimum): Security, inspections, and emergency response. Requirement: All Personnel Method: OJT, lecture/video course Review: Annual C. Safety (one hour minimum): Personal protection, hazardous waste recognition, hazardous material handling, emergency response, and first aid. Requirement: All Personnel Method: Lecture/video course Jones & DeMille Engineering Page 9 Project #: 2411-046 Review: Annual 12. CONTINGENCY PLANS The Contingency Plans are designed to minimize hazards to human health or the environment from any unplanned sudden or non-sudden discharge to air, soil, surface, or groundwater. The provisions of this plan shall be carried out immediately when there is an emergency or release which could threaten human health or the environment. Emergency evacuation of the site will not be necessary given the nature of the waste materials stored and processed at the site. The probability of fire, explosion, or toxic vapor generation from an emergency incident is remote. 12.1. FIRE OR EXPLOSION A landfill fire or explosion would be particularly hazardous in the presence of discarded household chemicals, paints, fuels, etc.; however, wastage load monitoring is expected to effectively eliminate this potential. A fire may be started by spontaneous combustion in refuse containers but is usually the result of vandalism or disposal of hot coals and ashes. Mixing clay with waste will help prevent fires from spreading throughout the landfill. The primary method of fire control will involve excluding or isolating hot or burning loads. If a fire occurs during operating hours, the burning material will be separated from other waste and covered with soil using onsite earthmoving equipment. This action will be supported, when necessary, by the availability of additional equipment owned and operated by the county road department. Small fires may be extinguished with the fire extinguishers provided in site vehicles or by using the water truck. Upon notification of an onsite fire or explosion which is not controllable with onsite fire protection equipment, a long blast on a vehicle horn will be sounded, nonessential equipment will be shut down, and all site personnel will assemble outside the landfill entrance. The Sigurd Fire Department will be alerted, and all personnel will move to a safe distance from the area involved until the fire is extinguished. Secondary fire control will be supported by the Richfield City Fire Department and other fire departments in Sevier County as needed. The telephone number and location of the nearest fire station will be displayed in a conspicuous place in the site office. The landfill employees will participate in a fire drill conducted semi-annually. Fires which occur during times when the landfill is closed are more difficult to control due to the time available for the fire to spread. If a fire is reported after hours, the Landfill Manager may utilize site equipment to segregate the burning portion and bury the fire with soil. Otherwise, the local fire department will be alerted to extinguish the fire. 12.2. EXPLOSIVE GAS RELEASE Due to the size, remote location, and arid nature of the site, significant amounts of explosive landfill gas are neither expected to be generated nor to migrate offsite. The landfill manager is responsible for quarterly monitoring of landfill gas using a methane detection meter capable of measuring methane at Jones & DeMille Engineering Page 10 Project #: 2411-046 levels below the Lower Explosive Limit (LEL). Gas monitoring will be conducted to test for methane at the LEL at the facility boundary and at twenty five percent of the LEL in the facility structures. If explosive gases are detected above the LEL during monitoring, or at any other time, the emergency audible alarm and evacuation procedures will be implemented. 12.3. FAILURE OF THE CONTAINMENT SYSTEM Based on the trench mound design being constructed, there are no containment systems proposed at the site. 12.4. GROUNDWATER The proposed vadose zone moisture monitoring will monitor the performance of the final cover and natural clay liner and provide early warning of any potential leachate migration toward the groundwater. If free liquids are detected in the leachate collection system, the leachate will be analyzed to determine the chemical composition. If the leachate exhibits constituents with concentrations above groundwater maximum concentration limits, a program will be developed to install monitoring wells and monitor groundwater quality. If groundwater exceeds maximum concentration limits, a corrective action plan will be developed and submitted to the Utah Division of Solid and Hazardous Waste. 13. RECORD KEEPING The following records will be kept on site at the landfill. 1. A daily operating record containing the weights or volumes of waste, the number of vehicles entering the landfill, and the types of waste received. 2. Paint filter testing results. 3. High liquid waste TCLP testing results. 4. Alternative daily cover use records. 5. Training records for landfill personnel. 6. Leachate and gas monitoring inspection records. 7. Operations Inspection Reports. 8. Copies of the Class I and IV Permits. 9. Landfill Operations Plan. 10. Vehicle Maintenance Records. 11. Operating Permit and Permit Application. 12. Financial Assurance Documentation. See Appendix A for examples of forms to be used for record keeping. 14. REPORTING An annual report will be submitted to the executive secretary by March 1 of each year for the most recent calendar year of facility operation. The report will contain at a minimum: o Name and address of facility. Jones & DeMille Engineering Page 11 Project #: 2411-046 o Calendar year covered by report. o Quantity of waste in tons or volume in cubic yards, by waste type. o Estimated in place density in pounds per cubic yard by waste type. o Annual update on financial assurance mechanism identifying any adjustments which may be necessary. o Leachate & gas monitoring results. o Training completed by personnel. Jones & DeMille Engineering Page A-1 Project #: 2411-046 APPENDIX A. RECORD KEEPING FORM EXAMPLES HOUSEHOLD CONTAMINATED PRODUCT LOG SHEET DATE NAME TIME crrY/TowN TYPE OF PRODUCT QUANTIryGALLONS SIGNATURE EMPLOYEE INITIAL . SEVIER COUNTY LANDFILL. CLASS 1 DATE PRICE$crw TRUCK #GROSS TARE TONS TIME WEIGHER o . LOAD DESCRIPTION . TYPE OF TRUCK DRIVER SIGNATURE . SEVIER COUNTY LANDFILL. CLASS 4 DATE PRrCE$CITY GROSS TARE TONS TIME WEIGHER TYPE OF TRUCK TRUCK #DRIVER SIGNATURE Daily Cover Usage Date Estimated Cover Quantity Alternative or Soil Cover Used Cell Covered Employee Initial EPA Paint Filter Test Results Paint filter testing will be conducted in accordance with EPA method 9095B Date Quantity Generator Solidified onsite or offsite Pass/Fail Disposal Location (if not rejected) Employee Initial TCLP Testing Results TCLP Testing Required for all car wash sump waste and selected liquid wastes. Date Generator Waste Type Quantity TCLP Test Result Employee Initial Sevier County Landfill Compostable Materials Name: Phone #: Address: Date Gross Tare Pounds Tons Waste Type Time Weigher Price Drivers Signature Sevier County Landfill Animal Products for Animal Pits (Composted Animal Products Use Compost Form) Name: Phone #: Address: Date Gross Tare Pounds Tons Time Weigher Price Drivers Signature February 21, 2025 Division of Waste Management and Radiation Control PO Box 144880 Salt Lake City, Utah 84114-4880 RE: Sevier County Sage Flat Landfill Permit Exemptions Dear Douglas J. Hansen, Director: The Sevier County Sage Flat Landfill is writing to request exemptions to allow for longer storage of compost and the use of alternative daily cover. The requested exemptions will benefit Sevier County by allowing the landfill to better handle several waste streams in need of disposal. R315-303-4(4)(c) Exemption The landfill is requesting an exemption to allow the use of solidified high liquid wastes as alternative daily cover materials. The high liquid waste generators will be required to declare the waste as non-hazardous before acceptance at the landfill. This will prevent risks to human health or the environment. An updated Plan of Operations is included in this submission describing the use of alternative cover following all requirements listed in R315-303-4(4)(c). This exemption is being requested to allow the landfill to better accept high liquid waste. Using the liquid waste as an alternative daily cover will allow the landfill to dispose of the waste without using valuable cell volume. R315-312-2(3)(a) Exemption The landfill is requesting an exemption to allow a 2-year timeframe on the 50% recycling rule. This exemption will be needed for successful composting of animal mortalities by the landfill. Large animal carcasses can take up to 1 year of composting before being considered completed compost. Without this exemption the landfill will not be able to accept large animal mortalities as the compost timeframe will not allow 50% recycling of the material in 1 years’ time. Further the landfill will require large volumes of green waste for the compost process. Allowing the landfill to stockpile this material will allow more compostable waste acceptance. This exemption is only needed for the compost and green waste areas of the landfill. Other areas of the landfill can continue to follow R315-312-2(3)(a). Thank you for your consideration of these exemptions. If you have any questions, please contact: February 21, 2025 Page 2 Cory Condie Landfill Manager Corycondie@hotmail.com Justin Telfer Project Engineer Justin.t@jonesanddemille.com © 2024 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO h: \ j d \ p r o j \ 2 4 1 1 - 0 4 6 \ d w g \ d e t a i l s _ 2 4 1 1 - 0 4 6 2411-046 VICINITY MAP SHEET NO.PROJECT NO. APPROVAL RECOMMENDED FOR APPROVAL: DATE APPROVED: DATE Jones & DeMille Engineering, Inc. 1.800.748.5275 www.jonesanddemille.com GIS - ENVIRONMENTAL - MATERIALS TESTING CIVIL & STRUCTURAL ENGINEERING - SURVEYING - shaping the quality of life - INDEX TO SHEETS SHEET NO.SHEET TITLE TITLE TITLE LEGEND LEGEND INDEX INDEX SITE-00 to SITE-06 SITE DT-01 to DT-09 DETAILS SUBMITTAL:REVIEW - NOT FOR CONSTRUCTION TITLESEVIER COUNTY, SEVIER, UTAH 2023 SEVIER COUNTY LANDFILL PERMIT SEVIER COUNTY SAN JUAN KANEWASHINGTON IRON GARFIELD WAYNEPIUTEBEAVER MILLARD SEVIER EMERY GRAND SANPETE CARBON JUAB UTAH WASATCH DUCHESNE UINTAH DAGGETTSUMMIT SALT LAKE TOOELE DAVIS MORGAN WEBER RICH CACHE BOX ELDER IDAHO WYOMING CO L O R A D O NE V A D A ARIZONA PROJECT LOCATION I-70 SR-24 SEVIER COUNTY LEGEND EDGE OF ASPHALT EDGE OF CONCRETEEDGE OF GRAVEL SURFACING EDGE OF DIRT SURFACING EDGE OF ASPHALT SURFACING TOP BACK OF CURB LIP OF CURB TOP OF SIDEWALK TOP OF CONCRETE TOP OF GRATE EDGE OF ASPHALT FLOW LINE OF GUTTER FLOW LINE OF CULVERT SIDEWALK FINISHED GROUND TOP OF ASPHALT EXISTING GRAVEL SURFACING PROPOSED GRAVEL SURFACING STREET SIGN TBC LOC TSW TOC TOG EOA FLG FLC SW FG TOA SANITARY SEWER LINE CULINARY WATER LINE BURIED POWER LINE FENCE LINE (BARBED OR STOCKTIGHT) DRAINAGE CULVERT FLOW LINE OF DITCH BURIED TELEPHONE LINE NATURAL GAS LINE BURIED CABLE TV LINE CULINARY WATER VALVE SANITARY SEWER MANHOLE TREE CONCRETE SURFACING DELINEATOR POST PROPERTY LINE IRRIGATION LINE EXISTING RIGHT OF WAY LINE SANITARY SEWER MANHOLE CULINARY WATER VALVE DRAINAGE CULVERT CULINARY WATER LINE SANITARY SEWER LINE SECTION LINE PROPOSED RIGHT-OF-WAY LINE SUBDIVISION BOUNDARY LINE LOT LINES QUARTER SECTION LINE (P.U.E.) PUBLIC UTILITY EASEMENT DEED LINE FIRE HYDRANT FIRE HYDRANT STRUCTURE DELINEATOR POST STREET SIGN TOP OF CUT LIMITS TOE OF FILL LIMITS CULINARY WATER METER WATER METER POWER POLE & GUY WIRE STORM DRAIN SANITARY SEWER SERVICE POWER POLE EXISTING FEATURES PROPOSED FEATURESMISC. FEATURES (SIDEWALK, CURB, GUTTER, ETC.) FENCE LINE (CHAIN LINK) TELEPHONE PEDESTAL OVERHEAD CABLE TV LINE OVERHEAD POWER LINE OVERHEAD TELEPHONE LINE BURIED POWER LINE OVERHEAD POWER LINE BURIED TELEPHONE LINE OVERHEAD TELEPHONE LINE BURIED CABLE TV LINE OVERHEAD CABLE TV LINE NATURAL GAS LINE IRRIGATION LINE STORM DRAIN FENCE LINE (BARBED OR STOCKTIGHT) FENCE LINE (CHAIN LINK) FIBER OPTIC LINE FIBER OPTIC LINE MAILBOX MAILBOX ABBREVIATIONS POWER POLE COMMUNICATION MANHOLE RIGHT-OF-WAY SEWER MANHOLE LEFT RIGHT EPP CMH R/W SMH L / LT R / RT TEMPORARY T.C.E. PUBLIC UTILITY EASEMENTP.U.E. CONSTRUCTION EASEMENT STATIONSTA EXISTING CITY BLOCK LINESBLOCK LINE EXISTING N/A LINE 2/ 2 0 / 2 0 2 5 LEGEND LA N D F I L L P E R M I T LE G E N D 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y NO N E WATER MANHOLE LIGHT POLE LIGHT POLE RE V I E W - N O T F O R CO N S T R U C T I O N GAS METER GAS METER SMH M EPP G.W . T CABLE TV PEDESTAL SMH SCO M EPP SCO SANITARY SEWER CLEAN OUT M WMH M IRRIGATION MANHOLEIMH IM IRRIGATION METER SDM STORM DRAIN MANHOLE © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO 65 5 . 0 0 ' 715. 0 0 ' 580. 0 0 ' 165.00' 315.00' 460.00' 610.00' SITE-01 SITE-02 SITE-03 SITE-04 SITE-05 SITE-00 SITE-06 2/ 2 0 / 2 0 2 5 INDEX LA N D F I L L P E R M I T IN D E X 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 6 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO PROPOSED COMPOST SITE (SEE SITE-04 FOR MORE DETAIL) PROPOSED ANIMAL PITS (SEE SITE-06 FOR MORE DETAIL) ANIMAL PIT #1 (ACTIVE) CLASS I PITS (ACTIVE) FUTURE CLASS I PITS (FUTURE) METAL RECYCLING COLLECTION AREA (ACTIVE) MAIN BUILDING SCALE MAINTENANCE BUILDING WASTE TIRE COLLECTION AREA (ACTIVE) PROPOSED HIGH LIQUID WASTE MIXING PAD GREEN WASTE COLLECTION AND STORAGE AREA (ACTIVE) ASBESTOS PIT (CLOSED) CLASS IV PITS (ACTIVE) PROPOSED HIGH LIQUID WASTE STAGING AREA PROPOSED ALTERNATIVE DAILY COVER STOCKPILE ANIMAL PIT #3 (CLOSED) 2/ 2 0 / 2 0 2 5 SITE-00 LA N D F I L L P E R M I T SI T E M A P 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 6 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO CLASS I CELL 1 (CLOSED) CLASS I CELL 2 (ACTIVE) CLASS I CELL 3 (ACTIVE) CLASS I CELL 4 (FUTURE) CLASS I CELL 5 (FUTURE) CLASS I CELL 6 (FUTURE) CLASS I CELL 7 (FUTURE) ANIMAL PIT CELL 3 (CLOSED) 2/ 2 0 / 2 0 2 5 SITE-01 LA N D F I L L P E R M I T CL A S S I P I T S S I T E P L A N 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 2 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO MAIN BUILDING MAINTENANCE BUILDING MAINTENANCE BUILDING MAIN GATE SCALE METALS RECYCLING COLLECTION (ACTIVE) 40.00' 4 0 . 0 0 ' CONCRETE PIT (CLOSED) HIGH LIQUID WASTE MIXING PADHIGH LIQUID WASTE STAGING AREA WASTE TIRE COLLECTION (ACTIVE)ALTERNATIVE DAILY COVER STOCKPILE 2/ 2 0 / 2 0 2 5 SITE-02 LA N D F I L L P E R M I T MA I N E N T R A N C E S I T E P L A N 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 2 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO CLASS IV PIT (ACTIVE) CLASS IV PIT (ACTIVE) 2/ 2 0 / 2 0 2 5 SITE-03 LA N D F I L L P E R M I T CL A S S I V P I T S S I T E P L A N 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 2 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO ASBESTOS PIT (CLOSED) ANIMAL PIT #1 (ACTIVE) PROPOSED COMPOST SITE 33 0 . 0 0 ' 25 0 . 0 0 ' 17 0 . 0 0 ' 85 . 0 0 ' 69 . 0 0 ' 18.00' 12.00' 30 . 0 0 ' 40 0 . 0 0 ' 500 . 0 0 ' 490 . 0 0 ' 480 . 0 0 ' 470 . 0 0 ' 420 . 0 0 ' 300 . 0 0 ' 24.00' PROPOSED GRAVEL ROAD PROPOSED GRAVEL ROAD Existing Gravel Road 655.00 ' 715.00 ' 580.00' 16 5 . 0 0 ' 31 5 . 0 0 ' 46 0 . 0 0 ' 61 0 . 0 0 ' ANIMA L P I T # 4 ANIMA L P I T # 5 ANIMA L P I T # 6 AN I M A L P I T # 7 AN I M A L P I T # 8 AN I M A L P I T # 9 AN I M A L P I T # 1 0 PROPOSED ANIMAL PITS GREEN WASTE COLLECTION AND STORAGE (ACTIVE) BU T C H E R W I N D R O W # 1 BU T C H E R W I N D R O W # 2 BU T C H E R W I N D R O W # 3 BU T C H E R W I N D R O W # 4 BU T C H E R W I N D R O W # 5 BU T C H E R W I N D R O W # 6 BU T C H E R W I N D R O W # 7 BU T C H E R W I N D R O W # 8 BU T C H E R W I N D R O W # 9 BU T C H E R W I N D R O W # 1 0 AN I M A L C A R C A S S # 1 AN I M A L C A R C A S S # 2 AN I M A L C A R C A S S # 3 SM A L L C O M P O S T A B L E # 1 SM A L L C O M P O S T A B L E # 2 BU T C H E R W I N D R O W # 1 1 BUT C H E R W I N D R O W # 1 2 BU T C H E R W I N D R O W # 1 3 BU T C H E R W I N D R O W # 1 4 BU T C H E R W I N D R O W # 1 5 BUT C H E R W I N D R O W # 1 6 2/ 2 0 / 2 0 2 5 SITE-04 LA N D F I L L P E R M I T CO M P O S T A N D A N I M A L P I T S S I T E P L A N 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 2 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. MAIN BUILDING MAINTENANCE BUILDING MAINTENANCE BUILDING MAIN GATE SCALE METALS RECYCLING COLLECTION (ACTIVE)40.00' 4 0 . 0 0 ' HIGH LIQUID WASTE MIXING PADHIGH LIQUID WASTE STAGING AREA WASTE TIRE COLLECTION (ACTIVE) ALTERNATIVE DAILY COVER STOCKPILE 2/ 2 0 / 2 0 2 5 SITE-05 LA N D F I L L P E R M I T MA I N B U I L D I N G S S I T E P L A N 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 1 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG.IT'S FREE AND IT'S THE LAW. © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO PROPOSED GRAVEL ROAD ACCESS FENCE LINE BOTTOM OF PIT. ALL PITS ARE MAXIMUM 30' WIDE AT BASE. ALL PITS ARE MAXIMUM 30' DEEP. TOP OF PIT. ALL PITS ARE MAXIMUM 90' WIDE AT TOP. SLOPES ON PIT EDGES ARE 1V:1H. EXISTING ROADWAY TO BE ABANDONED S T O R A G E C A P A C I T Y = 1 . 0 A C R E - F T D E P T H = 3 . 0 ' SI D E S L O P E S = 3 : 1 PV I 1 2 + 9 4 . 2 3 El e v 5 7 3 0 . 6 3 V DITCH TO DRAIN INTO RETENTION POND 1 8 2 . 0 0 ' 2 0 0 . 0 0 ' 76.00' 58.00' DRAINAGE BERM MI N . 50 ' OF F S E T FR O M FE N C E LI N E EXISTING ROADWAY TO REMAIN IN PLACE ANIMAL PIT GRAVEL ACCESS 6 5 5 . 0 0 ' 7 1 5 . 0 0 ' 5 8 0 . 0 0 ' 165.00' 315.00' 460.00' 610.00' A N I M A L P I T # 4 A N I M A L P I T # 5 A N I M A L P I T # 6 ANIMAL PIT #7 ANIMAL PIT #8 ANIMAL PIT #9 ANIMAL PIT #10 30.00' 30.00' 30.00 ' 30.00 ' 30.00 ' 30.00' 30.00 ' 30.00 ' 30.00' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' 30 . 0 0 ' N 6 3 ° 0 2 ' 0 7 " E N 6 3 ° 0 2 ' 0 7 " E N 6 3 ° 0 2 ' 0 7 " E N 90°00'00" E N 90°00'00" E N 90°00'00" E N 90°00'00" E ALL GRAVEL ROADS BETWEEN ANIMAL PITS ARE 10' WIDE. ALL GRAVEL ROADS BETWEEN ANIMAL PITS ARE 10' WIDE. 38.822783,-111.911385 38.822566,-111.911244 38.823659,-111.909188 38.823442,-111.909047 38.823357, -111.909185 38.823140, -111.909044 38.822554,-111.911198 38.822338,-111.911057 38.823049,-111.909198 38.822832,-111.909057 38.822338, -111.910980 38.822121, -111.910839 38.822249,-111.910458 38.822249, -111.910148 38.821803,-111.910458 38.821803,-111.910148 38.822384,-111.910113 38.822384, -111.909803 38.822519,-111.909769 38.822519,-111.909458 38.822654,-111.909424 38.822654,-111.909113 38.821532, -111.910113 38.821532,-111.909803 38.821276, -111.909769 38.821276,-111.909458 38.821005, -111.909424 38.821005,-111.909113 2/ 2 0 / 2 0 2 5 SITE-06 LA N D F I L L P E R M I T AN I M A L P I T S I T E P L A N 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E S I G N _ 2 4 1 1 - 0 4 6 _ A n i m a l P i t s . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 1 0 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. GREEN WASTE BED NITROGEN SOURCE GREEN WASTE NITROGEN SOURCE GREEN WASTE 1. 5 0 ' 2. 0 0 ' 2. 0 0 ' 1. 5 0 ' 2. 0 0 ' 12.00' 8.00' 4.00' COMPOST PILE CROSS SECTION 9.00'2.00'9.00'2.00' 2%2% 1 1 NOTES: 1.DRAIN ROADWAY TOWARD RETENTION BASIN. COMPOST PILE ROAD TYPICAL SECTION 12.00'2.00'12.00'2.00' 2%2% 1 1 NOTES: 1.DRAIN ROADWAY TOWARD RETENTION BASIN. ROAD TYPICAL SECTION 6" UNTREATED BASE COURSE 6" UNTREATED BASE COURSE 2/ 2 0 / 2 0 2 5 DT-01 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 5 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-02 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 3 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-03 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 5 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-04 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 5 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-05 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 6 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 6% 6% 6% 6% 10 . 0 0 ' 10.00' 40.00' A A 6% 0% 1.00'1.00' #5 REBAR; 16" SPACING O.C. 10.00'15.00'15.00' 1. 0 0 ' 0. 5 0 ' 0. 5 0 ' HIGH LIQUID WASTE CONCRETE PAD CROSS SECTION A NOTES: 1.VERTICAL SCALE IS 10:1 ON CROSS SECTION A. 1 40 . 0 0 ' 0. 9 0 ' 6% 2/ 2 0 / 2 0 2 5 DT-06 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 1 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-07 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 1 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-08 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 1 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. 2/ 2 0 / 2 0 2 5 DT-09 LA N D F I L L P E R M I T DE T A I L S 24 1 1 - 0 4 6 2/ 2 0 / 2 0 2 5 H:\ J D \ P r o j \ 2 4 1 1 - 0 4 6 \ d w g \ D E T A I L S _ 2 4 1 1 - 0 4 6 . d w g RE V I S I O N S NO . DA T E RE M A R K S SC A L E : UP D A T E D : NU M B E R : PR O J E C T COUNTY SHEET NO. DW G N A M E : PL O T T E D : 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F E D C B A GIS - E N V I R O N M E N T A L - M A T E R I A L S T E S T I N G 1.8 0 0 . 7 4 8 . 5 2 7 5 w w w . j o n e s a n d d e m i l l e . c o m Jo n e s & D e M i l l e E n g i n e e r i n g , I n c . CI V I L & S T R U C T U R A L E N G I N E E R I N G - S U R V E Y I N G SU B M I T T A L : SEVIER SE V I E R C O U N T Y 1" = 1 0 ' RE V I E W - N O T F O R CO N S T R U C T I O N Blue Stakes of Bluestakes.org 1-800-662-4111CALL BEFORE YOU DIG. IT'S FREE AND IT'S THE LAW. Sevier County Sage Flat Landfill U.S. Fish and Wildlife Service, National Standards and Support Team,wetlands_team@fws.gov Wetlands Estuarine and Marine Deepwater Estuarine and Marine Wetland Freshwater Emergent Wetland Freshwater Forested/Shrub Wetland Freshwater Pond Lake Other Riverine December 18, 2024 0 0.5 10.25 mi 0 0.8 1.60.4 km 1:30,093 This page was produced by the NWI mapperNational Wetlands Inventory (NWI) This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site. December 20, 2024 RE: Sevier County Landfill Permitting; Case No. 24-3141 Sevier County is applying to include a composting facility at their existing landfill that will require a new permit with the Utah Department of Environmental Quality. The current permit will also be modified to authorize a high-liquid waste facility (e.g., grease trap waste) and construction of the animal pits. The proposed composting facility and high-liquid waste are within previously disturbed areas of the landfill. The area for the animal pits has not been obviously disturbed, but we believe the area would have been culturally surveyed and cleared recently for BLM’s authorization of the landfill expansion. Due to the project activities occurring wholly within the authorized landfill, I recommend a finding of No Historic Properties Affected. Please contact me with any questions about this request; (435) 893-5203 or jenna.j@jonesanddemille.com. Sincerely, Jenna Jorgensen Environmental Coordinator JONES & DeMILLE ENGINEERING, INC. 3760 South Highland Drive, Salt Lake City, Utah 84106 • history.utah.gov Christopher Merritt State Historic Preservation Officer Utah State Historic Preservation Office Spencer J. Cox Governor Deidre M. Henderson Lieutenant Governor Donna Law Interim Executive Director December 24, 2024 Jenna Jorgensen Environmental Coordinator Jones and DeMille RE: Sevier County Landfill - Permit Modification and Composting Permit For future correspondence, please reference Case No. 24-3141 Dear Ms Jorgensen, The Utah State Historic Preservation Office received your request for our comment on the above-referenced undertaking on December 20, 2024. We concur with your determination of effect for this undertaking. Utah Code 9-8-404(1)(a) denotes that your agency is responsible for all final decisions regarding cultural resources for this undertaking. Our comments here are provided as specified in U.C.A. 9-8-404(3)(a)(i). If you have questions, please contact me at (801) 535-2502 or by email at rmcgrath@utah.gov. Sincerely, Ryan McGrath Compliance Archaeologist Sevier County Sage Flat Class I Landfill 31 23 16 Excavation Operations Permit () Page 1 of 3 SECTION 31 23 16 EXCAVATION PART 1 GENERAL 1.1 SUMMARY A. Section Includes: 1. Excavating materials for landfill trenches. 2. Constructing embankments for landfill trenches. B. Related Requirements: 1. Section 31 23 23 – Liners and Cover. 1.2 REFERENCE STANDARDS A. American Association of State Highway and Transportation Officials (AASHTO): 1. AASHTO T99 - Moisture-Density relations of Soils Using a 5.5 lb (2.5 kg) Rammer and a 12-in. (305 mm) Drop. B. ASTM International (ASTM): 1. ASTM D2922 - Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth). 1.3 DEFINITIONS A. Clearing: Removal and disposal of logs, limbs, sticks, vegetation, rubbish, debris, and other material on ground surface. B. Grubbing: Removal and disposal of roots, buried logs, debris, and other underground material. 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. Topsoil: Top 6 inches of existing onsite soil. 1.4 QUALITY ASSURANCE A. Obtain materials from same source throughout. PART 2 PRODUCTS – Not used. Sevier County Sage Flat Class I Landfill 31 23 16 Excavation Operations Permit () Page 2 of 3 PART 3 EXECUTION 3.1 PREPARATION A. Identify required lines, grades, and elevations. B. Clear and grub all vegetation and debris within staked area. C. Dispose of vegetation, debris and other unsuitable material off site. 3.2 TOPSOIL EXCAVATION A. Excavate existing on-site soils to depth of 6-inches to remove topsoil from areas to be further excavated. Stockpile topsoil on site at designated area. 3.3 SOIL EXCAVATION A. Excavate subsoil to grades and lines as staked and indicated on Drawings. Stockpile subsoil on site at designated area. B. Excavate trench side slopes at maximum 1:1 horizontal to vertical. If unstable conditions exist, flatten trench side slopes as required to meet OSHA requirements. C. Remove and dispose of unsuitable excavated materials off site. D. Remove lumped soil, boulders, and rock from site. E. Trim excavation to required elevation. Remove loose materials. 3.4 EMBANKMENT A. Use suitable excavated materials to build embankments. Do not use frozen materials, organic materials, rubbish, debris, or other objectionable materials. B. If embankment height is 6 feet or less and underlying ground consists of loose material, scarify and compact top 8 inches of ground to at least 90 percent of maximum laboratory density. C. Do not place embankment over porous, wet, frozen, or spongy surfaces. D. Uniformly spread embankment materials in layers not exceeding 12 inches non-compacted depth. If tests indicate unsatisfactory density, reduce layer thickness. E. Compact each layer to at least 95 percent of maximum laboratory density. F. Maintain optimum moisture content of embankment materials. Sevier County Sage Flat Class I Landfill 31 23 16 Excavation Operations Permit () Page 3 of 3 3.5 FINISHING A. Finish excavation area to reasonably smooth and uniform surface. 3.6 TOLERANCES A. Moisture Content: Plus 3 percent or minus 1 percent of optimum. B. Finish Subgrade Surface: Plus or minus 0.1 feet of required elevation. 3.7 QUALITY CONTROL TESTING A. Perform density tests in accordance with ASTM D2922. Determine maximum laboratory density in accordance with AASHTO T99, Method D. 1. Frequency of Tests: Take minimum of 2 random density tests for each 1,500 square yards of embankment. 2. Acceptance: Average density is 95 percent or greater lot. Reject tests less than 92 percent. 3. If tests indicate Work is not acceptable, re-compact and retest. 3.8 PROTECTION A. Protect bench marks, survey control points, and existing features remaining from displacement and damage. B. Maintain adequate drainage and keep excavated areas free of standing water. C. Repair or replace items damaged by earthwork operations. D. Maintain subgrade until next layer is placed. END OF SECTION Sevier County Sage Flat Class I Landfill 31 23 23 Fill Operations Permit () Page 1 of 5 SECTION 31 23 23 Liners and Cover PART 1 GENERAL 1.1 SUMMARY A. Section Includes: 1. Clay bottom liner for landfill cells. 2. Intermediate cover placed over compacted waste. 3. Final cover placed over compacted waste. 4. Finish grading. B. Related Requirements: 1. Section 31 23 16 – Excavation. 2. Section 32 92 19 – Revegetation. 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 Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop. B. ASTM International (ASTM): 1. ASTM D2487 - Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System). 2. ASTM D6938 - Standard Test Methods for In-Place Density and Wa- ter Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth). 1.3 DEFINITIONS A. Coarse Grained Soil: Soils with more than 50 percent retained on No. 200 sieve. B. Fill: Soil placed on site to indicated finish grade. C. Fine Grained Soil: Soils with 50 percent or more passing No. 200 sieve. D. Soil Classification: In accordance with ASTM D2487 and AASHTO M145. Sevier County Sage Flat Class I Landfill 31 23 23 Fill Operations Permit () Page 2 of 5 E. Topsoil: Top 6 inches of existing onsite soil. 1.4 QUALITY ASSURANCE A. Obtain materials from same source throughout. 1.5 ENVIRONMENTAL REQUIREMENTS A. Remove snow prior to work on bottom liner. B. Remove frozen materials and replace with non-frozen materials. PART 2 PRODUCTS 2.1 MATERIALS A. Topsoil: Top 6 inches of existing onsite soil. B. Native Soil: Soil excavated from trenches. C. Fill and Backfill: Use existing onsite excavated soil free from rubbish, debris, organic material, frozen material, or other objectionable materials. D. Bottom Liner: Clay material conforming to the following: 1. At least 35 percent material passing 200 sieve. 2. Plasticity index between 10 and 30 percent. 3. No more than 10 percent gravel particles between 1 and 2 inches in diameter. 4. Reasonable free of organic material. E. Intermediate and Final Liner: Natural clay excavated form trenches or obtained from borrow site. PART 3 EXECUTION 3.1 EXAMINATION A. Verify survey bench mark and intended elevations for Work are as indicated on Drawings. 3.2 PREPARATION A. Bottom Liner: 1. Establish elevation grid at bottom of trench. B. Intermediate Cover: 1. Identify location for intermediate cover. Sevier County Sage Flat Class I Landfill 31 23 23 Fill Operations Permit () Page 3 of 5 C. Final Cover: 1. Verify waste is ready for final cover. 2. Prior to placing final cover, place minimum of 6 inches of daily cover, consisting of native soil, over waste. Daily cover shall be graded and compacted to provide uniform, suitable surface on which to place clay liner. 3.3 CONSTRUCTION – BOTTOM LINER A. Excavate 24 inches of subsoil from bottom of trench. Stockpile material on site. B. Construct bottom liner in lifts not exceeding 8 inches compacted thickness. Construct bottom liner to total compacted thickness of 24 inches. C. Compact each lift to 95 percent of maximum laboratory density. Maintain optimum moisture content of material. D. Construct liner of homogeneous material free of lenses, pockets, streaks, voids, laminations or other imperfections. Provide satisfactory bonding between each lift. E. Slope bottom liner at 2 percent towards leachate collection system. 3.4 CONSTRUCTION – INTERMEDIATE COVER A. Place intermediate cover material in lifts not exceeding 9 inches compacted depth. Place cover to total depth of 18 inches. B. Compact each layer to at least 90 percent of maximum laboratory density. C. Maintain optimum moisture content of materials. D. Place gravel material in unloading area as necessary to provide suitable access for traffic. 3.5 CONSTRUCTION – FINAL COVER A. Place clay liner in lifts not exceeding 8 inches. Compact each lift to at least 95 percent of maximum laboratory density. Maintain optimum moisture con- tent of clay material. Construct clay liner to total compacted thickness of 18 inches. B. Place native soil over clay liner in two equal lifts. Compact each lift to 95 percent of maximum laboratory density. Maintain optimum moisture of na- tive soil. Construct native soil to total compacted thickness of 14 inches. Sevier County Sage Flat Class I Landfill 31 23 23 Fill Operations Permit () Page 4 of 5 C. Place topsoil over native soil to 6 inches compacted thickness. Compact to 85 percent of maximum laboratory density. Maintain optimum moisture con- tent of topsoil. D. Grade finish cross slope of cell to slope at 3 percent grade toward edges. 3.6 FILL A. If fill height is 6 feet or less and underlying ground consists of loose material, scarify and compact top 8 inches of underlying ground to at least 90 percent of maximum laboratory density prior to placing fill materials. B. Do not place rocks exceeding 4 inches within 12 inches of pavement subgrade. C. Slope grade as indicated on Drawings. 3.7 FINISH GRADING A. Bottom Liner: 1. Finish bottom liner to reasonably smooth and uniform surface. 2. Check final elevations at same locations after placement of liner to verify thickness. B. Intermediate Cover: 1. Finish intermediate cover and gravel to reasonably smooth and uni- form surface. C. Final Cover: 1. Finish final grade to reasonable smooth and uniform surface. 3.8 TOLERANCES A. Moisture Content: Plus 3 percent or minus 1 percent of optimum. B. Finish Surface: Plus or minus 0.1 feet of required elevation. 3.9 QUALITY CONTROL TESTING A. Perform density tests in accordance with ASTM D6938. Determine maximum laboratory density in accordance with AASHTO T99, Method D. 1. Frequency of Tests: Take minimum of 1 random density test for each 500 cubic yards of material. 2. Acceptance: a. Average density is 95 percent or greater for clay liner and na- tive soil in bottom liner and final cover. b. Average density is 90 percent or greater for intermediate cover. Sevier County Sage Flat Class I Landfill 31 23 23 Fill Operations Permit () Page 5 of 5 c. Average density is 85 percent or greater for topsoil. d. Reject single tests 4 percent or more below specified density. 3. If tests indicate Work is not acceptable, re-compact and retest. B. Permeability: Determine using sealed single ring infiltrometer apparatus. 1. Frequency: Take one test for each 1,000 cubic yards. Run duplicate test at same time for each third test. 2. Acceptance: Not exceed 1x10-7 cm/sec. 3. If tests indicate Work is not acceptable, re-compact and retest. 3.10 PROTECTION A. Maintain bottom liner and intermediate cover until placement of waste. B. Maintain final cover clay liner until native soil is placed. C. Keep surface of bottom liner moist to prevent desiccation until placement of waste. D. If desiccation cracks appear in bottom liner, repair with powdered bentonite prior to waste placement. E. Keep surface of final cover clay liner moist to prevent desiccation until placement of native soil. END OF SECTION Sevier County Sage Flat Class I Landfill 32 92 19 Seeding Operations Permit () Page 1 of 2 SECTION 32 92 19 REVEGETATION PART 1 GENERAL 1.1 SUMMARY A. Section Includes: 1. Seed mix. 2. Preparation of areas to be seeded. 3. Application of seed mix. 4. Protection of seeded area. B. Related Requirements: 1. Section 31 23 23 – Liners and Cover. 1.2 DELIVERY, STORAGE, AND HANDLING A. Deliver seed mix in sealed containers. B. Protect seed containers from moisture and damage during storage. 1.3 FIELD CONDITIONS A. Apply seed mix after construction work is finished. When possible, apply after October 1 and before April 1. B. Do not apply seed mix during excessively windy periods, excessively dry periods, or when ground is excessively wet. PART 2 PRODUCTS 2.1 MATERIALS A. Seed Mixture: Contain typical native species found in surrounding areas. Do not use wet, moldy, or otherwise damaged seed B. Water: Clean, fresh and free of substances of matter which could inhibit vigorous growth of seeds PART 3 EXECUTION 3.1 PREPARATION A. Verify topsoil is in place and has been final graded. B. Loosen top surface soil, 0.5 inch minimum depth. Sevier County Sage Flat Class I Landfill 32 92 19 Seeding Operations Permit () Page 2 of 2 C. Moisten topsoil, but don’t over water to create muddy soil. 3.2 APPLICATION A. Apply seed mix on final cover and other disturbed areas. Apply seed evenly at 50 pounds per acre. B. Apply seed mix using one of the following methods: 1. Hydraulic Method: Mix seed mix with water to produce a slurry and apply by hydro spraying. 2. Drill Method: Apply seed mix by seed drilling equipment to ¼ to ½ inch depth. 3. Broadcast Method: Apply seed mix at double rate specified. Cover by use of harrow, chain, or rake. C. Do not apply seed mix during windy periods, during excessively dry periods, or when ground is excessively wet or frozen. 3.3 PROTECTION A. Protect seeded area from disturbance until final acceptance of Work. B. Where necessary to protect from traffic, mark perimeter of seeded area with stakes and string or ribbon. C. Repair any damage to seeded areas caused by traffic or construction operations, and reseed as necessary. END OF SECTION Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 1 of 12 SECTION 03 30 00 CAST-IN-PLACE CONCRETE PART 1 GENERAL 1.1 SUMMARY A. Section Includes Cast-in-Place Concrete for Items as Follows: 1. Footings. 2. Supported slabs and slabs on grade. 3. Control, expansion, and contraction joint devices. 4. Concrete curing. B. Related Requirements: 1. Section 03 10 00 – Concrete Forming and Accessories. 2. Section 03 20 00 – Concrete Reinforcing. 1.2 PRICE REDUCTION A. Price Reduction for Compressive Strength: 1. If compressive strength test of concrete does not meet requirement of Table 3 of this Section, Engineer may allow price reduction pending review of affected structural element. If allowed, Engineer will calculate price reduction using Table 1 of this Section. 2. Price reduction will be dollar reduction per cubic yard from Table 1 of this Section multiplied by cubic yards of concrete place for compressive strength test represented. 3. If test results for compressive strength are more than 400-pounds per square inch below specified compressive strength in Table 3 of this Section, Engineer will reject concrete and require removal. (Remainder of page intentionally left blank.) Table 1. Price Reduction for Compressive Strength Compressive Strength Below Specified Strength (psi) Reduction per Cubic Yard 1-100 $10.00 101-200 $25.00 201-300 $50.00 301-400 $100.00 Greater than 400 Reject 1.3 REFERENCE STANDARDS Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 2 of 12 A. American Concrete Institute (ACI): 1. ACI 301 – Specifications for Structural Concrete. 2. ACI 305.1 – Specification for Hot Weather Concreting. 3. ACI 306.1 – Standard Specification for Cold Weather Concreting. 4. ACI 308.1 – Specification for Curing Concrete. 5. ACI 309R – Guide for Consolidation of Concrete. 6. ACI 318 – Building Code Requirements for Structural Concrete. B. ASTM International (ASTM): 1. ASTM C31 - Standard Practice for Making and Curing Concrete Test Specimens in the Field. 2. ASTM C33 - Standard Specification for Concrete Aggregates. 3. ASTM C39 - Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens. 4. ASTM C42 - Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete. 5. ASTM C94 - Standard Specification for Ready-Mixed Concrete. 6. ASTM C143 - Standard Test Method for Slump of Hydraulic-Cement Concrete. 7. ASTM C150 - Standard Specification for Portland Cement. 8. ASTM C172 - Standard Practice for Sampling Freshly Mixed Concrete. 9. ASTM C231 - Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method. 10. ASTM C260 - Standard Specification for Air-Entraining Admixtures for Concrete. 11. ASTM C309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete. 12. ASTM C494 - Standard Specification for Chemical Admixtures for Concrete. 13. ASTM C618 - Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete. 14. ASTM C685 - Standard Specification for Concrete Made by Volumetric Batching and Continuous Mixing. 15. ASTM C1017 - Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete. 16. ASTM C1064 - Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete. 17. ASTM C1107 - Standard Specification for Packaged Dry, Hydraulic- Cement Grout (Nonshrink). 18. ASTM C1116 - Standard Specification for Fiber-Reinforced Concrete. 19. ASTM C1602 - Standard Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete. 20. ASTM D1751 - Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types). Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 3 of 12 1.4 COORDINATION A. Coordinate placement of joint devices with erection of concrete formwork and placement of form accessories. 1.5 SUBMITTALS A. Product Data: Submit data on joint devices, attachment accessories, admixtures, fibrous reinforcing, bonding agent, non-shrink grout, curing compound, and accessories. B. Design Data: 1. Submit concrete mix design for each concrete class used. 2. Submit prior test results for each concrete mix design. 3. Submit separate mix designs if admixtures are required for following: a. Hot and cold weather concrete Work. b. Air entrained concrete Work. 4. Identify mix ingredients and proportions, including admixtures. 5. Identify chloride content of admixtures and whether chlorides were added during manufacturing. C. Batch Ticket: Submit to Engineer’s onsite representative with each truck load delivered. Include information as follows: 1. Name of batch plant. 2. Name of Contractor and Project. 3. Mix design number or designation. 4. Class of concrete mix and type of cement. 5. Time and date of batching. 6. Cubic yards of concrete. 7. Weights of cement and each size of aggregate. 8. Amount of water added at plant and any additional water added. 9. Amount of each admixture. 1.6 CLOSEOUT SUBMITTALS A. Project Record Documents: Record actual locations of embedded utilities and components concealed from view in finished construction. B. Warranty: Submit before or with final application for payment. 1.7 QUALITY ASSURANCE A. Perform Work according to ACI 318, unless indicated otherwise. B. Acquire cement and aggregate from one source for Work. 1.8 AMBIENT CONDITIONS Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 4 of 12 A. Hot Weather Concreting: Comply with ACI 305.1, except as modified herein. 1. From mixing to placement, maintain concrete temperature not to exceed 90 degrees Fahrenheit. 2. When ambient air temperature exceeds 90-degrees Fahrenheit, moist cure concrete for minimum of 5-days following placement. 3. Cool surfaces that will come in contact with concrete to below 95 degrees Fahrenheit. B. Cold Weather Concreting: Comply with ACI 306.1, except as modified herein. 1. When ambient air temperature is above 45-degrees Fahrenheit, maintain concrete temperature at minimum equal to air temperature, but not greater than 90-degrees Fahrenheit. 2. When ambient air temperature is below 45-degrees Fahrenheit, maintain concrete temperature at or above but not more than 10- degrees Fahrenheit above minimum temperatures shown in Table 2 of this Section. 3. Do not place concrete without using blankets and heaters, or other accepted protective measures when ambient air temperature is less than 20-degrees Fahrenheit. 4. Adequately vent combustion-type heaters that produce carbon monoxide. Position heaters and ducts so hot air does not cause areas of concrete surface to overheat or over-dry. Maintain most conditions to avoid excessive loss of moisture from external heat. 5. Do not place concrete against adjacent concrete, foundations, formwork, reinforcing, or other items that are frozen or have surface temperature less than 40-degrees Fahrenheit. Table 2. Concrete Temperature (Degrees Fahrenheit) for Cold-Weather Construction Condition Sections less than 12 inches Sections 12 to 36 inches Sections 36 to 72 inches Sections over 72 inches Minimum temperature fresh concrete as mixed in weather indicated Above 30 ˚F 0 ˚F to 30 ˚F Below 0 ˚F 60 65 70 55 60 65 50 55 60 45 50 55 Minimum temperature fresh concrete as placed and maintained (protection period) 55 50 45 40 Maximum allowable gradual drop in temperature in first 24 hours after end of protection 50 40 30 20 Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 5 of 12 C. Measure concrete temperature with surface thermometer insulated from surrounding air. D. Protection Period: 1. Maintain concrete temperature after placement at minimum temperatures shown in Table 2 of this Section for minimum six days. 2. For high-early strength concrete, maintain concrete temperature after installation at minimum temperatures shown in Table 2 of this Section for minimum three days. 1.9 WARRANTY A. Provide written guarantee to promptly remove and/or repair defective concrete for two-year period after date of substantial completion. PART 2 PRODUCTS 2.1 MATERIALS A. Concrete: 1. Cement: a. Portland cement complying with ASTM C150. b. Use Type II - Moderate Sulfate Resistant or Type II-V blend for Class A through C concrete. c. Use Type V - High Sulfate Resistant for Class S2 and S3 concrete. Meet or exceed sulfate Exposure Class S2 Severe in accordance with Tables 4.2.1 and 4.3.1 of ACI 318. 2. Coarse Aggregate: a. Comply with ASTM C33. b. Maximum Size: According to ACI 318. 1) Not larger than 1/5 narrowest dimension between sides of form. 2) Not larger than 1/3 depth of slab. 3) Not larger than ¾ minimum clear distance between reinforcing bar or between reinforcing bars and forms, whichever is smallest. 3. Fine Aggregate: Comply with ASTM C33. 4. Water: a. Comply with ASTM C1602. b. Potable. B. Admixtures: 1. Do not use calcium chloride or admixtures that contain calcium chloride. 2. Air Entrainment: Comply with ASTM C260. Use pre-measured admixtures for air entrainment added on site. 3. Chemical: Submit with mix design for review prior to use. Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 6 of 12 a. Comply with ASTM C494. b. Type A - Water Reducing. Slump requirements on Table 3 of this Section may be changed to 5-inches maximum for all classes of concrete. c. Type D - Water Reducing and Retarding. Slump requirements on Table 3 of this Section may be changed to 5-inches maximum for all classes of concrete. d. Type F - Water Reducing, High Range. Slump requirements on Table 3 of this Section may be changed to 9-inches maximum for all classes of concrete. e. Set retarding admixtures may be used when haul time will be exceeded. Establish effective life of concrete mix by trial batch. 4. Fly Ash: Comply with ASTM C618, Class F, and not exceed 3- percent loss on ignition and do not exceed 15-percent CaO content. May be used to replace cement. Limit content of fly ash to 30-percent of required cement content by weight. Submit with mix design for review prior to use. 5. Plasticizing: Comply with ASTM C1017 and submit with mix design for review prior to use. C. Cementitious Crystalline Waterproofing: Blend of Portland cement, fine treated silica sand and active proprietary chemicals. Acceptable manufacturers: 1. Xypex Chemical Corporation 2. Or equal. 2.2 CONCRETE MIX A. Determine mix design with required portions of cement, aggregate, admixtures, and water. Verify mix design with trial batch. B. Provide concrete complying with Table 3 of this Section. (Remainder of page intentionally left blank.) Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 7 of 12 Table 3. Concrete Class and Requirements Class Coarse Aggre- gate Size (inches) Maximum Water/ Cement Mini- mum Ce- ment Con- tent (Sacks/ C. Y.) Slump (inche s) Air Con- tent (Per- cent) Mix Design Compres- sive Strength (PSI) 28 Day Minimum Compres- sive Strength (PSI) Max Ratio (lb. /lb.) S3 or S3(AE) 1" to No. 4 0.45 7.0 1-3.5 5.0-7.5 6520 5000 S2 or S2(AE) 1" to No. 4 0.45 6.5 1-3.5 5.0-7.5 5870 4500 AA(AE) 2" to No. 4 0.44 6.0 1-3.5 5.0-7.5 5210 4000 1 1/2" to No.4 0.44 6.0 1-3.5 5.0-7.5 5210 4000 1" to No. 4 0.44 6.5 1-3.5 5.0-7.5 5210 4000 3/4" to No. 4 0.44 6.5 1-3.5 5.0-7.5 5210 4000 A or A(AE) 1 1/2" to No. 4 0.45 5.0 1-3.5 4.5-7.5 3910 3000 1" to No. 4 0.45 5.0 1-3.5 4.5-7.5 3910 3000 3/4" to No. 4 0.45 5.25 1-3.5 4.5-7.5 3910 3000 B or B(AE) 0.62 4.0 2-5 3.0-6.0 3260 2500 C or C(AE) 0.71 4.0 2-5 3.0-6.0 2610 2000 (AE) = Air-Entrainment Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 8 of 12 C. Ready-Mixed Concrete: Mix and deliver concrete according to ASTM C94. For remote locations where ready mixed concrete is not readily available, mix and deliver concrete according to ASTM C685. D. Site-Mixed Concrete: Request and obtain acceptance from Engineer prior to using site-mixed concrete. Mix concrete according to ACI 318. 2.3 ACCESSORIES A. Joint Devices and Filler: 1. Joint Filler: a. Description: Asphalt-impregnated fiberboard or felt. b. Comply with ASTM D1751. c. Thickness: ½-inch. d. Sealant: Where indicated on Drawings. 2. Construction Joint Devices: As indicated on Drawings or as accepted by Engineer. 3. Expansion and Contraction Joint Devices: As indicated on Drawings or as accepted by Engineer. B. Curing Materials: 1. Membrane Curing Compound Type A: ASTM C309, Type 1, Class A. 2. Absorptive Mats: Burlap-polyethylene, minimum 9-ounces per square yard bonded to prevent separation during handling and placing. 3. Polyethylene Film: 4-mil thick, white opaque color. PART 3 EXECUTION 3.1 EXAMINATION A. Verify requirements for concrete cover over reinforcement. B. Verify that anchors, seats, plates, reinforcement, and other items to be cast into concrete are accurately placed, positioned securely, and will not interfere with placing concrete. 3.2 PREPARATION A. If concrete subgrade is dry, dampen with water prior to placing concrete. Keep subgrade firm and free from excess water. B. Remove debris and ice from formwork, reinforcement, and concrete substrates. C. Remove water from areas receiving concrete before concrete is placed. Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 9 of 12 3.3 INSTALLATION A. Placing Concrete: 1. Place concrete according to ACI 318. 2. Notify Engineer minimum 48-hours prior to commencement of operations. 3. Ensure that reinforcement, inserts, embedded parts, formed expansion and contraction joints, and other materials are not disturbed during concrete placement. 4. Where indicated on Drawings, install vapor barrier under interior slabs on grade. 5. Joint Filler: a. Separate slabs on grade from vertical surfaces with 1/2-inch- thick joint filler or 30-pound felt. b. Place joint filler in slab pattern placement sequence; set top to required elevations; secure to resist movement by wet concrete. c. Extend joint filler from bottom of slab to within ½-inch of finished slab surface, unless indicated otherwise on Drawings. d. Apply sealant in joints where indicated on Drawings. 6. Joint Devices: a. Install joint devices where indicated on Drawings. b. Install in accordance with manufacturer’s instructions. c. Coordination: Install construction joint devices in coordination with floor slab pattern placement sequence; set top to required elevations; secure to resist movement by wet concrete. d. Install joint device anchors, maintaining correct position to allow joint cover to be flush with floor finish. e. Install joint covers in longest practical length when adjacent construction activity is complete. f. Apply sealants in joint devices where indicated on Drawings. 7. Convey concrete from mixer to place of final position by methods that will prevent segregation of mix or loss of materials. Use tremie or other accepted method. Do not allow concrete to free fall more than 5 feet, or less if segregation of mix occurs. 8. After concrete has been conveyed from mixer, do not add water. Adding water to place concrete will be cause for rejection. 9. Place concrete in continuous operation for each panel or section as determined by predetermined joints. 10. Consolidate concrete during placement using hand tools, mechanical vibrators, vibrating screeds, and finishing machines in accordance with ACI 309R. Consolidation techniques will be reviewed and accepted with Concrete Placement Plan. a. Do not use vibrator to move concrete horizontally. Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 10 of 12 b. Do not vibrate high slump (greater than 6-inches) concrete, unless accepted by Engineer. c. Do not over vibrate concrete. d. Provide sufficient vibrators to consolidate concrete within 15- minutes after placement of concrete in forms. e. Provide at least two vibrators for each concrete placement greater than 25-cubic yards. f. Do not attach vibrators to or against forms or reinforcing steel. g. Do not allow vibrators to penetrate concrete layers that have taken initial set. 11. Maintain records of concrete placement, including date, location, quantity, air temperature, and test samples taken. 12. Place concrete continuously between predetermined expansion, control, and construction joints. 13. Do not interrupt successive placement and do not permit cold joints to occur. 14. Saw-Cut Joints: a. Saw-cut joints within 12-hours after placing. b. Use 3/16-inch-thick blade. c. Cut 1/4 depth of slab thickness. B. Concrete Finishing: 1. Finish concrete as indicated in schedule. 2. Finish concrete floor surfaces according to ACI 318. 3. Provide non-slip broom finish to exterior concrete platforms and slabs. Slightly roughen concrete surface by grooming with fiber- bristle broom. 4. Do not use steel trowels or fresno to finish exterior concrete. 5. Do not use jitter bugs for concrete consolidation. C. Curing and Protection: 1. Immediately after placement, protect concrete from premature drying, excessively hot, or cold temperatures, and mechanical injury. 2. Maintain concrete with minimal moisture loss at relatively constant temperature for period as necessary for hydration of cement and hardening of concrete. 3. Cure horizontal concrete surfaces according to ACI 308.1 using one of following methods: a. Ponding: Maintain 100-percent coverage of water over slab continuously for seven days. b. Spraying: Spray water over slab and maintain wet for seven days. c. Absorptive Matt: Cover slab with saturated mat lapping ends and sides. Maintain saturated condition for seven days. d. Membrane Curing Compound: Apply curing compound in two coats with second coat applied at right angles to first. Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 11 of 12 e. Polyethylene Film: Spread over slab, lap edges and sides, seal with pressure sensitive tape and cover with plywood as necessary to secure film. Maintain in place for seven days. 4. Cure vertical surfaces according to ACI 308.1 using one of following methods: a. Spraying: Spray water over surface and maintain wet for seven days. b. Membrane Curing Compound: Apply curing compound in two coats with second coat applied at right angles to first. 5. Provide additional protection as necessary to prevent freezing during cold weather. 6. Use curing method which is compatible with finish coat of concrete surface. 3.4 FIELD ACCEPTANCE TESTING A. Testing: Will be performed by Owner's testing laboratory according to ACI 318 and referenced standards. B. Provide unrestricted access to Work and cooperate with appointed testing personnel. C. Concrete Inspections: 1. Continuous Placement Inspection: Inspect for proper installation procedures. 2. Periodic Curing Inspection: Inspect for specified curing temperature and procedures. D. Field Testing: Comply with ASTM C172. Sample and test concrete at least once for every 50-cubic yards or less of each class of concrete placed each day. 1. Slump Test: Comply with ASTM C143. 2. Air Content Test: Comply with ASTM C231. 3. Perform initial air and slump test on first truck of each day prior to placing concrete in forms. a. If initial air and slump test are acceptable, proceed with placement of concrete. b. If initial air and slump tests are not acceptable, reject concrete and remove from site or make required corrections to make concrete acceptable. 4. Perform final air and slump tests on middle portion of batch in accordance with ASTM C172. 5. Temperature Test: Comply with ASTM C1064. 6. Compressive Strength Test: Comply with ASTM C31 and C39. a. Cast four cylinders. b. Test one cylinder at 7-days. Sevier County 03 30 00 Cast-in-Place Concrete Liquid Waste Pad Construct (2501-087) Page 12 of 12 c. Test three cylinders at 28-days. Compressive strength will be average of three cylinders. 7. Tests shall comply with the requirements of Table 3 of this Section for each class. 3.5 NON-CONFORMING WORK A. Optional Core Compressive Strength Testing: If compressive strength test fails, compressive strength testing by core samples may be requested. Submit detailed request to Engineer. 1. Sampling and Testing Procedures: Comply with ASTM C42. 2. Drill three cores for each failed strength test from failed concrete. 3. If compressive strength test of cores does not meet requirements of Table 3 of this Section, Engineer may reject concrete and require removal or allow concrete to remain with price reduction. Price reduction or replacement will be at discretion of Owner and Engineer. B. Patching: 1. Allow Engineer to observe concrete surfaces immediately upon removal of forms. 2. Honeycombing or Embedded Debris in Concrete: a. Not acceptable. b. Notify Engineer upon discovery. 3. Patch imperfections as indicated by Engineer. C. Defective Concrete: 1. Description: Concrete not conforming to required lines, details, dimensions, tolerances, or specified requirements. 2. Repair or replacement of defective concrete will be indicated by Engineer. 3. Do not patch, fill, touch up, repair, or replace exposed concrete, except as indicated by Engineer for each individual area. 3.6 ATTACHMENTS A. Concrete Schedule: See Table 4 of this Section. (Remainder of page intentionally left blank.) Table 4. Concrete Schedule Element Class Finish Other Notes Exterior Floor Slabs AA(AE) Light Broom Finish Footings AA(AE) Form Finish END OF SECTION