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Home My WebLink AboutDSHW-2025-000566Close Window Print This Page ADoc-111655 Application Document Name ADoc-111655 Owner Cory Condie Application A-157031 Internal Comments Document Name 1) Facility Map or Maps 2) Facility Legal Description 3) Plan of Operation 4) Waste Description 5) Ground Water Report 6) Closure Design 7) Cost Estimates 8) Financial Assurance 9) or Additional documents as necessary External Comments Status Submitted Link to gdrive file File not present Application Recordtype Document Type Gdrive file id Application Report Account Sevier County Created By Cory Condie, 1/27/2025, 11:22 AM Last Modified By Cory Condie, 1/27/2025, 11:31 AM Files Sevier County Sage Flat Landfill Permit Modification Package Last Modified 1/27/2025, 11:22 AM Created By Cory Condie Copyright © 2000-2025 salesforce.com, inc. All rights reserved. 1/30/25, 3:00 PM ADoc-111655 ~ Salesforce - Unlimited Edition https://utahdeqorg.my.salesforce.com/a03eq00000LfRugAAF/p 1/1 MEMORANDUM DATE: January 21, 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 Site Overview 5. Landfill Construction Drawings and Specifications 6. NWI Map of the Landfill 7. State Historic Preservation Society Letter 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 and creation of new dead animal cells. The attached application includes an updated plan of operations with a high liquid waste management plan, a site map, construction drawings, and construction details. Included in this memorandum is updated information on the landfill’s location standards. January 21, 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 high liquid waste. Businesses in Sevier County currently have no close disposal options for these high liquid wastes. 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 high liquid waste: • Grease trap waste and related byproducts • Car wash sump waste • Blood waste The Plan of Operations for the landfill has been updated with a High Liquid Waste 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 Needs The landfill will need to construct a concrete mixing pad for the high liquid waste site. Details for the pad are included with the construction drawings. The pad is designed to accept the entire estimated monthly liquid waste at once without overtopping. However, the entire anticipated monthly waste will likely never come in a single load. The cost to build the pad is estimated to be $30,000. No other items or costs are predicted for the acceptance of high liquid wastes. 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. 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 the animal waste pits and the high liquid waste site. • Updated the Waste Handling Procedures section: o Added PCBs and high liquid wastes to the wastes excluded section. January 21, 2025 Page 3 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, compost site, and high liquid waste area. • Updated the recycling program section to show the landfill collects metal that is taken away by a contractor. • Added a high liquid waste 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 inspection and maintenance schedule to include compost site needs. • Updated the landfills equipment list. • Updated the Procedures for Controlling Disease Vectors section to include the high liquid waste and the compost site. • Added a composting class to the training schedule. • Updated record keeping section to include the compost record form, 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. 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, January 21, 2025 Page 4 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 1. Table 1. 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 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. January 21, 2025 Page 5 Figure 1. Compost Site Drainage Ditch Sizing Results Figure 2. Animal Pit Site Drainage Ditch Sizing Results January 21, 2025 Page 6 Figure 3. Ephemeral Stream Drainage Ditch Sizing Results SEVIER COUNTY SAGE FLAT LANDFILL PLAN OF OPERATIONS January 21, 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 ................................................................................................... 2 3.1. Litter Control ............................................................................................................................... 4 3.2. Recycling Programs ..................................................................................................................... 4 4. High Liquid Waste Management Plan ..................................................................................... 4 4.1. Use of Alternative Daily Cover .................................................................................................... 5 5. Alternative Waste Handling or Disposal Plan .......................................................................... 5 6. Landfill Inspections and Monitoring Schedule ......................................................................... 6 7. Leachate Monitoring .............................................................................................................. 6 8. Landfill Equipment ................................................................................................................. 7 9. Procedures for Controlling Disease Vectors ............................................................................. 7 9.1. Class I and IV Landfill Sites .......................................................................................................... 7 9.2. High Liquid Waste Site ................................................................................................................ 7 9.3. Compost Site ............................................................................................................................... 7 10. Training & Safety Plan for Site Operation ................................................................................ 8 11. Contingency Plans .................................................................................................................. 9 11.1. Fire or Explosion ......................................................................................................................... 9 11.2. Explosive Gas Release ................................................................................................................. 9 11.3. Failure of the Containment System .......................................................................................... 10 11.4. Groundwater ............................................................................................................................ 10 12. Record Keeping .................................................................................................................... 10 13. Reporting ............................................................................................................................ 11 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 6-1. 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 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 Sevier County Sage Flat 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 the 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 dead animal pits will be excavated up to thirty feet below the ground surface and have 1:1 side slopes. 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 site will consist of a concrete mixing pad and alternative cover storage area. The mixing pad will be filled with loose soil before high liquid waste 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 will be stockpiled for later use as an alternative daily cover of the Class I cells. Records will be kept for all waste accepted, the paint filter test results, and the day the cover was used. 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. Jones & DeMille Engineering Page 3 Project #: 2411-046 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 wastes as defined in R315-261-3 o PCBs as defined in R315-301-2(53) o Toxic waste o Chemical wastes o White goods containing chlorofluorocarbons o High liquid wastes 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 composting site or the dead animal pits. Compostable materials will be directed to the green waste or compost area depending on the waste type. Finally, any approved high liquid waste 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. 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 4 Project #: 2411-046 3.1. LITTER CONTROL Clay is mixed with the 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 high liquid waste 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. The compost site will include two separate areas: a green waste area and an active composting area. The green waste site is surrounded by a large dirt berm that limits wind in the site and prevents litter from leaving. Any litter blown from the site will be collected by the perimeter fence. The composting area should have minimal litter present as the majority will be removed in the green waste area. Any litter in the compost windrows will be controlled by adding water to the windrows and mixing the windrows. The inmate work crew will be used to gather all visible litter from the perimeter fence, the green waste berms, and the compost windrows. 3.2. RECYCLING PROGRAMS The landfill separates and collects metal waste near the main entrance. A contractor comes monthly to haul the metal waste to a recycling center. The metal collection and recycling is operated following all requirements outlined in R315-312. 4. HIGH LIQUID WASTE MANAGEMENT PLAN No high liquid wastes 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 high liquid waste types and associated disposal costs will be placed at the landfill entrance. The landfill will require high liquid waste generators to certify waste is free of hazardous materials or PCBs as outlined in R315-262. All car wash wastes will be required to undergo TCLP testing prior to being accepted. High liquid wastes loads appearing to be solid will be tested with the EPA Paint Filter Test. 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 wastes as defined in R315-261-3 • PCBs as defined in R315-301-2(53) • toxic waste Jones & DeMille Engineering Page 5 Project #: 2411-046 • chemical wastes All liquid solidification will be performed on the site’s concrete mixing pad. The pad is designed to capture all liquid and allow no leachate or seepage. 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. 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. Pre-solidified blood is currently accepted by the landfill. If the landfill determines they need compostable materials, non-solidified blood may be accepted. The blood will be solidified on the mixing pad by immediately mixing with sawdust and woodchips. After passing the paint filter test the solidified blood will be sent to the compost site for composting. If the landfill does not have sufficient material to solidify blood or does not need compostable material, liquid blood will not be accepted. 4.1. USE OF ALTERNATIVE DAILY COVER The facility will be using a mixture of high liquid waste and soil as an alternative daily cover. All high liquid wastes will be immediately mixed with soils in an open environment. These steps will eliminate risks to operator health and safety by eliminating the buildup of any potential gases. The liquid and soil mixture will be used as daily cover Monday through Friday. As required by the landfill permit the high liquid waste will never be used as cover on Saturdays as the landfill is closed on Sundays. The alternative cover will never be applied to any areas of the landfill where subsequent waste or intermediate cover is not expected. If the alternative cover results in increased disease vectors, odors, blowing litter, or scavenging activity, it will be covered with 6-inches traditional cover. 5. 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. If the composting operation cannot accept waste, other areas of the landfill can accept the waste. Animal products can be sent to the dead animal site and green waste can be accepted and burned. Jones & DeMille Engineering Page 6 Project #: 2411-046 6. LANDFILL INSPECTIONS AND MONITORING SCHEDULE The schedule for inspections and monitoring of landfill facilities to ensure proper operation and maintenance is provided in Table 6-1. Table 6-1. 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 Composting pad Monthly and after clearing a compost windrow 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 7. 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. 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 Jones & DeMille Engineering Page 7 Project #: 2411-046 determine the quantity of slurry injected into the transfer pipe. The standpipe will also be filled with the slurry mixture. 8. LANDFILL EQUIPMENT The Sevier County Sage Flat 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. 9. PROCEDURES FOR CONTROLLING DISEASE VECTORS 9.1. CLASS I AND IV LANDFILL SITES Exclusion of specific types of solid wastes will be necessary to control disease vectors and the subsequent spread of disease. Special wastes such as infectious waste and liquid wastes, 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. 9.2. HIGH LIQUID WASTE SITE The high liquid waste 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 vector. The mixed waste 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. 9.3. COMPOST SITE Disease vectors in the compost will be controlled through temperature and the green waste cover of the animal products. No animal products will be left uncovered beyond the day they are accepted. The Jones & DeMille Engineering Page 8 Project #: 2411-046 windrows will be left unturned for up to 6 months after initial cover to allow full decomposition of animal products in a protected environment. Surface water controls will be used to reduce ponding issues and further reduce disease vectors. 10. TRAINING & SAFETY PLAN FOR SITE OPERATION Each employee who works with solid waste at the Sevier County 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 Review: Annual If the landfill decides to begin operating the composting site in-house, compost training will be added to the training schedule. The Managing Composting Program offered by SWANA will be a required training Jones & DeMille Engineering Page 9 Project #: 2411-046 for the landfill manager and selected operators. The course is available online and will be reviewed every 5 years. Training records will be kept in the main landfill building for at least five years. 11. 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. 11.1. 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 the 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. 11.2. 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 Jones & DeMille Engineering Page 10 Project #: 2411-046 quarterly monitoring of landfill gas using a methane detection meter capable of measuring methane at 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. 11.3. FAILURE OF THE CONTAINMENT SYSTEM Based on the trench mound design being constructed, there are no containment systems proposed at the site. 11.4. 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. 12. 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. Compost monitoring records containing windrow number, initiation date, estimated completion date, waste type and weight, and daily temperatures. 3. Paint filter testing results. 4. Car wash waste TCLP testing results. 5. Alternative daily cover use records. 6. Training records for landfill personnel. 7. Leachate and gas monitoring inspection records. 8. Operations Inspection Reports. 9. Copies of the Class I and IV Permits. 10. Landfill Operations Plan. 11. Vehicle Maintenance Records. 12. Operating Permit and Permit Application. 13. Financial Assurance Documentation. See Appendix A for examples of forms to be used for record keeping. Jones & DeMille Engineering Page 11 Project #: 2411-046 13. 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. 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 yards 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 Sevier County Landfill Animal Products for Compost or Animal Pits Name: Phone #: Address: Date Gross Tare Weight Compost or Pit Time Weigher Price Drivers Signature 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 Compost Windrow Monitoring Windrow Number: Composition Wood Chips: Green Waste: Date Completed: Animal Carcasses: Butcher Residuals: Other: Temperature and Location Taken Day Time North End Middle South End Other Initial 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 January 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 grease trap waste and compost as alternative daily cover materials. The grease trap 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. Compost will be monitored to ensure proper temperatures are reached during the composting process to ensure the material is safe to human health and 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. The exemption is also being requested to handle large amounts of compost potentially generated by the landfill. Using compost as an alternative cover material will allow the landfill to dispose of excess compost in the timeframes found in R315-312-2(3)(a). 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 January 21, 2025 Page 2 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. Sincerely, JONES & DeMILLE ENGINEERING, INC. Micklane Farmer Project Manager Micklane.f@jonesanddemille.com Justin Telfer Project Engineer Justin.t@jonesanddemille.com © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO PROPOSED COMPOST SITE PROPOSED ANIMAL PITS Existing Animal Pit Existing Class IV Pit Existing Class I Pit Future Class I Pit Existing Metals Recycling Collection Area Main Building Scale Maintenance Building Existing Waste Tire Collection Area PROPOSED HIGH LIQUID WASTE MIXING PAD Existing Green Waste Existing Closed Asbestos Pit 1/ 1 4 / 2 0 2 5 SITE LA N D F I L L P E R M I T T I N G SI T E M A P 24 1 1 - 0 4 6 1/ 2 1 / 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 . CIV 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. © 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-01 to SITE-07 SITE DT-01 to DT-09 DETAILS SUBMITTAL:REVIEW - NOT FOR CONSTRUCTION TITLE SEVIER COUNTY, SEVIER, UTAH 2023 SEVIER COUNTY LANDFILL PERMITTING 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 CONCRETE EDGE 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 1/2 3 / 2 0 2 5 LEGEND LA N D F I L L P E R M I T T I N G LE G E N D 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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 SITE-01 SITE-02 SITE-03 SITE-04 SITE-05 SITE-06 SITE-07 1/2 3 / 2 0 2 5 INDEX LA N D F I L L P E R M I T T I N G IN D E X 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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 PIT (CLOSED) CLASS I PIT (ACTIVE) CLASS I PIT (ACTIVE) CLASS I PIT (FUTURE) CLASS I PIT (FUTURE) CLASS I PIT (FUTURE) CLASS I PIT (FUTURE) 1/2 3 / 2 0 2 5 SITE-01 LA N D F I L L P E R M I T T I N G CL A S S I P I T S S I T E P L A N 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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 © 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 AREA 40.00' 40 . 0 0 ' HIGH LIQUID WASTE MIXING PAD WASTE TIRE COLLECTION AREA CLOSED CONCRETE PIT 1/2 3 / 2 0 2 5 SITE-02 LA N D F I L L P E R M I T T I N G 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 1/2 3 / 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 GI S - 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 © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO CLASS IV PIT CLASS IV PIT 1/2 3 / 2 0 2 5 SITE-03 LA N D F I L L P E R M I T T I N G CL A S S I V P I T S S I T E P L A N 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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 © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO CLOSED ASBESTOS PIT GREEN WASTE ANIMAL PIT 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 ANIMAL PITS PROPOSED GRAVEL ROAD PROPOSED GRAVEL ROAD Existing Gravel Road 1/2 3 / 2 0 2 5 SITE-04 LA N D F I L L P E R M I T T I N G 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 1/2 3 / 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 GI S - 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. © 2024 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO 12+0 0 13+0 0 14+0 0 14+7 4 PC: 11+31.54 PT: 1 1 + 9 8 . 0 6 EP: 1 4 + 7 4 . 2 5 © 2025 Microsoft Corporation © 2024 Maxar ©CNES (2024) Distribution Airbus DS © 2024 TMAP MOBILITY Earthstar Geographics SIO PROPOSED GRAVEL ROADWAY RETENTION BASIN Existing Gravel Roadway EXISTING DRAINAGE DITCH PROPOSED DRAINAGE DITCH COMPOST PILE 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 ' 50 0 . 0 0 ' 490 . 0 0 ' 48 0 . 0 0 ' 47 0 . 0 0 ' 42 0 . 0 0 ' 30 0 . 0 0 ' 24.00 ' PROPOSED DRAINAGE DITCH 1/2 3 / 2 0 2 5 SITE-05 LA N D F I L L P E R M I T T I N G CO M P O S T S I T E P L A N 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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 MAIN BUILDING MAINTENANCE BUILDING MAINTENANCE BUILDING MAIN GATE SCALE METALS RECYCLING COLLECTION AREA 40.00' 40 . 0 0 ' HIGH LIQUID WASTE MIXING PAD WASTE TIRE COLLECTION AREA 1/2 3 / 2 0 2 5 SITE-06 LA N D F I L L P E R M I T T I N G 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 1/2 3 / 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 GI S - 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 50' WIDE AT BASE. ALL PITS ARE MAXIMUM 50' DEEP. TOP OF PIT. ALL PITS ARE MAXIMUM 150' 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 ' S I 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 6 4 0 . 0 0 ' 5 2 0 . 0 0 ' 4 1 0 . 0 0 ' 310.00' 50.00' 50.00 ' 50.00 ' 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 1/2 3 / 2 0 2 5 SITE-07 LA N D F I L L P E R M I T T I N G AN I M A L P I T S I T E P L A N 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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 1/2 3 / 2 0 2 5 DT-01 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1V:1 H ANIMAL PIT CROSS SECTION VARIES WIDTH VARIES (50' MAX) VAR I E S WIDTH VARIES (50' MAX)WIDTH VARIES (50' MAX) DE P T H V A R I E S ( 5 0 ' M A X ) 1V:1H 1/2 3 / 2 0 2 5 DT-02 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1/2 3 / 2 0 2 5 DT-03 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1/2 3 / 2 0 2 5 DT-04 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1/2 3 / 2 0 2 5 DT-05 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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% 1/2 3 / 2 0 2 5 DT-06 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1/2 3 / 2 0 2 5 DT-07 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1/2 3 / 2 0 2 5 DT-08 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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. 1/2 3 / 2 0 2 5 DT-09 LA N D F I L L P E R M I T T I N G DE T A I L S 24 1 1 - 0 4 6 1/2 3 / 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 GI S - 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