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HomeMy WebLinkAboutDSHW-2025-001367Close Window Print This Page MD - 0188 Miscellaneous Document Number MD - 0188 Owner Brian Speer Application Status Program Manager Review Program Solid Waste SLVSWMF is submitting a semi-annual groundwater monitoring report it has completed for the adjacent (closed) Division of Natural Resources (DNR) landfill. This report is for monitoring completed in Fall 2024. Created By Amit Nair, 2/25/2025, 3:55 PM Last Modified By Amit Nair, 2/25/2025, 3:57 PM Files SLC25R177345-fall 2024 DNR Landfill GW Report Last Modified 2/25/2025, 3:56 PM Created By Amit Nair Activity History Email: Miscellaneous Document Submission Received Name Task Due Date 2/25/2025 Assigned To Amit Nair Last Modified Date/Time 2/25/2025, 3:57 PM Comments To: anair@kleinfelder.com CC: BCC: Attachment: --none-- Subject: Miscellaneous Document Submission Received Body: Dear Amit Nair, The purpose of this email is to inform you that the Division of Waste Management and Radiation Control received your miscellaneous document submission (MD - 0188) on 2/25/2025. Your application will be assigned to technical staff for review. If you have any questions, please contact the Solid Waste Program Manager, Brian Speer, by calling 801-536-0200. Email: Miscellaneous Document Submission Received Name Task Due Date 2/25/2025 Assigned To Amit Nair Last Modified Date/Time 2/25/2025, 3:57 PM Comments To: bspeer@utah.gov CC: BCC: Attachment: --none-- Subject: Miscellaneous Document Submission Received Comments 3/10/25, 9:01 AM MD - 0188 ~ Salesforce - Unlimited Edition https://utahdeqorg.my.salesforce.com/a0meq000001KxjJAAS/p 1/2 Body: Dear Brian Speer, The purpose of this email is to notify you that Amit Nair has submitted a miscellaneous document for review. The document number is MD - 0188. Please review the document and assign it to the appropriate staff member. Copyright © 2000-2025 salesforce.com, inc. All rights reserved. 3/10/25, 9:01 AM MD - 0188 ~ Salesforce - Unlimited Edition https://utahdeqorg.my.salesforce.com/a0meq000001KxjJAAS/p 2/2 25000032.001A/SLC25R177345 Page i of iii January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com FALL 2024 SEMIANNUAL GROUNDWATER MONITORING REPORT DEPARTMENT OF NATURAL RESOURCES LANDFILL 1982-1993 LANDFILL AREA SALT LAKE COUNTY, UTAH KLEINFELDER PROJECT NO. 25000032.001A January 27, 2025 Copyright 2025 Kleinfelder All Rights Reserved ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC PROJECT FOR WHICH THIS REPORT WAS PREPARED. 25000032.001A/SLC25R177345 Page ii of iii January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com A Report Prepared For: Salt Lake Valley Solid Waste Management Facility 6030 South California Avenue Salt Lake City, UT 84104 FALL 2024 SEMIANNUAL GROUNDWATER MONITORING REPORT DEPARTMENT OF NATURAL RESOURCES LANDFILL 1982-1993 LANDFILL AREA SALT LAKE COUNTY, UTAH Prepared by: Daniel Salas Staff Professional Reviewed By: Dylan Pike, P.G. Utah Project Manager Mike Gronseth P.E., P.G., PMP Principal Professional KLEINFELDER 849 West Levoy Drive, Suite 200 Salt Lake City, Utah 84123 Phone: 801.261.3336 January 27, 2025 Kleinfelder Project No. : 25000032.001A 25000032.001A/SLC25R177345 Page iii of iii January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com TABLE OF CONTENTS ___________________________________________________________________________________ Section Page 1 INTRODUCTION ..................................................................................................................... 1 2 GROUNDWATER ASSESSMENT ............................................................................................... 2 2.1 GROUNDWATER LEVEL MEASUREMENTS, ELEVATIONS, AND GRADIENT ......................... 2 2.2 GROUNDWATER SAMPLING AND ANALYSIS ....................................................................... 2 2.3 GROUNDWATER ANALYTICAL RESULTS .............................................................................. 3 2.3.1 Metals .................................................................................................................... 3 2.3.2 Inorganic Parameters ............................................................................................. 4 2.3.3 Organic Parameters ............................................................................................... 4 2.3.4 Quality Control ....................................................................................................... 4 3 CONCLUSIONS ....................................................................................................................... 8 4 LIMITATIONS ......................................................................................................................... 9 5 REFERENCES ........................................................................................................................ 10 TABLES 1 Groundwater Elevation Data, Fall 2024 2 Groundwater Sample ID Summary, Fall 2024 3 Laboratory Analysis for Groundwater Monitoring 4 Summary of SWGQPS Exceedances, Fall 2024 5 Summary of Laboratory Analytical Results, November 2019 through November 2024 6 Summary of Quality Control Results, Fall 2024 FIGURES 1 Monitoring Well Location Map 2 Fall 2024 Groundwater Elevations and Potentiometric Surface Map APPENDICES A Field Data Sheets B Laboratory Analytical Reports 25000032.001A/SLC25R177345 Page 1 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com 1 INTRODUCTION ___________________________________________________________________________________ This report summarizes the Fall 2024 groundwater monitoring and sampling activities conducted at the 1982-1993 Landfill Area, also referred to as the Department of Natural Resources (DNR) Landfill, at the Salt Lake Valley Solid Waste Management Facility (SLVSWMF). Monitoring activities were conducted in general accordance with the Salt Lake County Health Department (SLCHD), Health Regulation Number 1 and Utah Administrative Code (UAC) Regulation 315-308. The DNR Landfill Area is located at 5600 West California Avenue (1300 South Street), Salt Lake City, Salt Lake County, Utah. Groundwater monitoring has been conducted by Kleinfelder or other consultants at the DNR Landfill since 1993. Prior to 1993, groundwater monitoring at the Site was conducted by the SLCHD. Since 1993, groundwater monitoring at the DNR Landfill has been conducted semiannually and summarized in semiannual reports submitted to the Division of Waste Management and Radiation Control (DWMRC) and the SLCHD. The Fall 2024 groundwater monitoring and sampling activities were conducted from October 23 through November 1, 2024. Monitoring activities included measuring the depth to groundwater, as well as collecting and analyzing groundwater samples from 10 monitoring wells (B, O, R, SSS, T, U, V, XX, Y, and Z). 25000032.001A/SLC25R177345 Page 2 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com 2 GROUNDWATER ASSESSMENT ___________________________________________________________________________________ 2.1 GROUNDWATER LEVEL MEASUREMENTS, ELEVATIONS, AND GRADIENT Depth to water measurements were recorded in each of the 10 groundwater monitoring wells on October 23, 2024. The depth to water ranged from 2.37 feet below top-of-casing (TOC) at groundwater monitoring well V to 12.66 feet below TOC at groundwater monitoring well A. Depth to water data is presented in Table 1 and on the groundwater gauging sheet completed for groundwater monitoring wells in Appendix A. Groundwater monitoring well locations are shown on Figure 1. Groundwater elevations, in feet above mean sea level (amsl) were calculated by subtracting the measured depth to groundwater from the surveyed groundwater monitoring well TOC elevations. Calculated groundwater elevations ranged from 4,221.34 feet amsl in groundwater monitoring well SSS to 4230.79 feet amsl in groundwater monitoring well O. Based on the potentiometric surface contours (Figure 2), the dominant direction of groundwater flow at the Site is to the northwest with a gradient of approximately 0.0016 ft/ft. Based on these groundwater elevations, groundwater monitoring wells B, V, U, A and Z are hydraulically up-gradient of the western portion of the DNR Landfill and groundwater monitoring wells O and P are hydraulically up-gradient of the eastern portion of the DNR Landfill. Groundwater monitoring wells R and SSS are hydraulically down-gradient of the western portion of the DNR Landfill. Groundwater monitoring wells A, Y, and Z are hydraulically down-gradient of the eastern portion of the DNR Landfill. Groundwater monitoring well T is cross-gradient to the western portion of the DNR Landfill. Groundwater monitoring well XX is cross-gradient to the eastern portion of the DNR Landfill. A potentiometric surface map with groundwater flow directions is shown on Figure 2. 2.2 GROUNDWATER SAMPLING AND ANALYSIS Groundwater samples were collected from ten (10) groundwater monitoring wells on October 29 through November 1, 2024. The groundwater monitoring wells were sampled using low-flow sampling techniques in general accordance with the United States Environmental Protection Agency (EPA) guidelines (EPA, 1996) where possible. At well Y, which has a poor recharge, samples were collected by bailing the well dry and allowing the water column to recharge to at least 80 percent of the static water level prior to sample collection. Field parameters monitored prior to sample collection are included on 25000032.001A/SLC25R177345 Page 3 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com the Field Data Sheets in Appendix A. The sample identification numbers, sample times, and dates of collection are presented in Table 2. The groundwater samples were submitted to Pace Analytical National Center for Testing and Innovation (Pace) in Mt. Juliet, Tennessee, for analysis of the compounds listed in Table 3, as required by UAC 315-308 and the Salt Lake County Health Department Health Regulation #1. The laboratory analytical reports are included in Appendix B. 2.3 GROUNDWATER ANALYTICAL RESULTS Pace analyzed groundwater samples for dissolved concentrations of metals, inorganic parameters, and organic parameters. No constituents, except for antimony, arsenic, and nickel, were reported above their respective Solid Waste Groundwater Quality Protection Standard (SWGQPS) by Pace for the Fall 2024 monitoring period. A summary of the antimony, arsenic, and nickel concentrations for the Fall 2024 monitoring period are included in Table 4. The analytical results for the groundwater samples collected during the Fall 2024 monitoring period are summarized in Table 5, along with analytical data for groundwater samples collected at the DNR Landfill since Fall 2019, for comparison purposes. Historical groundwater analytical results for monitoring events prior to Fall 2019 are included in prior groundwater monitoring reports and are available upon request. 2.3.1 Metals The laboratory reported several metal constituents with concentrations above their respective laboratory reporting detection limits (RDLs) in the groundwater samples collected and submitted for laboratory analysis. Antimony, arsenic, and nickel were the only metals reported at concentrations above their established SWGQPS. Concentrations of antimony exceeded the revised SWGQPS action level of 0.006 milligrams per liter (mg/L) in the sample collected from well O at a concentration of 0.00653 mg/L. Well O is located hydraulically upgradient of the eastern filled area, suggesting an off-Site source of contamination. Concentrations of arsenic exceeded the revised SWGQPS action level of 0.02 milligrams per liter (mg/L) in the samples collected from wells B, O, R, U, V, XX, Y and Z. Arsenic concentrations exceeding the regulatory action level ranged from 0.0203 mg/L in the sample from groundwater monitoring well Z to 0.461 mg/L in the sample from groundwater monitoring well O. The highest concentration of arsenic was reported in a hydraulically upgradient well, O, suggesting an off-Site source of contamination. 25000032.001A/SLC25R177345 Page 4 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com Nickel exceeded the SWGQPS action level of 0.1 mg/L in the sample collected from downgradient well SSS at a concentration of 0.117 mg/L. Antimony, arsenic and nickel concentrations reported by Pace in the groundwater samples submitted for the laboratory analysis during the Fall 2024 monitoring event are summarized in Table 4. No other analytes were reported by the laboratory at concentrations above their respective SWGQPS. As presented in Table 5, the laboratory reported concentrations of antimony, arsenic, barium, cadmium, calcium, chromium, cobalt, copper, iron, magnesium, manganese, nickel, potassium, selenium, silver, sodium, vanadium, and zinc above the laboratory Method Detection Limit (MDL) in the samples collected from one or more groundwater monitoring wells. The remaining metals were not reported at concentrations above the MDL. In general, metals concentrations during the Fall 2024 monitoring event are generally consistent with historical trends. 2.3.2 Inorganic Parameters Laboratory analytical results indicate the concentrations of inorganic parameters reported in groundwater samples collected during the Fall 2024 monitoring event are generally consistent with historical concentrations. 2.3.3 Organic Parameters No volatile organic compounds (VOCs) were reported by Pace at concentrations above the RDL in the groundwater samples submitted for laboratory analysis. 2.3.4 Quality Control Kleinfelder submitted for laboratory analysis one field duplicate sample (DUP-2), collected from groundwater monitoring well Y, to assess data quality. The EPA quality assurance guidelines establish that the range of quality in precision (the relative percent difference or RPD) between two measurements should not exceed 20% for aqueous samples (EPA, 2002). The RPD between samples Y and DUP-2 for cadmium was calculated to be 23.53%, exceeding the EPA quality assurance guideline. There were no other analytes with RPDs exceeding 20% between samples Y and DUP-2, therefore the data is considered valid and usable. A summary of the quality control results is presented in Table 6. 25000032.001A/SLC25R177345 Page 5 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com The laboratory provided internal quality control data consisting of method blanks, surrogate compound recoveries, laboratory control samples (LCS), and laboratory-prepared matrix spike/matrix spike duplicates (MS/MSD) along with their data packets. The laboratory analyzed the quality control samples for metals, non-metal constituents, and VOCs. The following presents a summary of the Quality Control (QC) evaluation for various samples: B Qualifiers, indicating that the analyte was found in the associated method blank and the reported sample concentration might be biased high were reported for total phenol in sample V, and TOC in sample XX. J Qualifiers, indicating an estimated value, were reported for the following samples and analytes: - B: antimony, cadmium, cobalt, potassium, vanadium, and zinc; - O: antimony, cadmium, cobalt, potassium, and silver; - R: antimony, cobalt nickel, potassium, and zinc; - SSS: total phenol, chromium, iron, selenium, vanadium, zinc, and 1,1-dichloroethane; - T: total phenol, antimony, cobalt, iron, potassium, selenium, and vanadium; - U: TOC; - V: ammonia nitrogen, total phenol, copper, and TOC; - XX: antimony, iron, potassium, and zinc; - Y: antimony, cadmium, nickel, and 1,1-dichloroethane; - Z: antimony; - DUP-2: total phenol, antimony, cadmium, nickel, and 1,1-dichloroethane. J3 Qualifiers, indicating the associated batch QC was outside the established quality control range for precision, were reported for the following samples and analytes: - B: chloromethane; - O: chloromethane; - R: Chloromethane; 25000032.001A/SLC25R177345 Page 7 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com No analytes were reported in the trip blanks submitted for analysis, indicating that cross contamination of VOCs during sample storage and transportation was not likely. Additionally, the laboratory reported data qualifiers for various quality control samples not derived from the Fall 2024 sample group. The above data qualifiers may bias some results low, high, or approximate, however the data is considered valid and usable. Data qualifiers can be viewed in Appendix B in the laboratory reports and in Table 5. 25000032.001A/SLC25R177345 Page 8 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com 3 CONCLUSIONS ___________________________________________________________________________________ The Fall 2024 DNR Landfill groundwater monitoring event was conducted between October 23 and November 1, 2024. Depth to water measurements were recorded in each of the 10 groundwater monitoring wells on October 23, 2024. The depth to water ranged from 2.37 feet below TOC at groundwater monitoring well V to 12.66 feet below TOC at groundwater monitoring well A. The calculated groundwater elevations ranged from 4,221.34 feet amsl in groundwater monitoring well SSS to 4230.79 feet amsl in groundwater monitoring well O. Based on the potentiometric surface contours (Figure 2) the dominant direction of groundwater flow at the Site is to the northwest with a gradient of approximately 0.0016 ft/ft. Groundwater monitoring well locations are shown on Figure 1. Laboratory analytical results of the collected groundwater samples indicated that concentrations of antimony, arsenic and nickel exceeded their respective SWGQPS values. Reported analyte concentrations from this sampling event are generally consistent with historical results. A statistical analysis comparing the Fall 2024 groundwater analytical results to historical data was not performed as part of this monitoring event. Based on the limited SWGQPS exceedances (arsenic consistently, antimony and nickel intermittently), the flat groundwater gradient, and the predominant flow direction towards other waste disposal facilities, the Site does not appear to pose a significant threat to human health or the environment. The next groundwater monitoring event at the DNR landfill is scheduled to be completed in Spring 2025. 25000032.001A/SLC25R177345 Page 9 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com 4 LIMITATIONS ___________________________________________________________________________________ This project was conducted, in general accordance with the accepted standard of care established in Utah at the time the work was performed. It should be recognized that the definition and evaluation of hydrogeologic conditions is a difficult and inexact science. Judgments leading to conclusions and recommendations are generally made with an incomplete knowledge of the subsurface and/or historic conditions applicable to the site. More detailed, focused, and/or extensive studies including additional subsurface assessments would reduce the inherent uncertainties associated with evaluation of environmental conditions. Kleinfelder performed the semiannual monitoring assessment of groundwater at the DNR Landfill as described in SLC23R151837), dated April 6, 2023 (Kleinfelder, 2023). Data may be developed during future assessments that would lead to modifications of the decisions and plans contained herein. Kleinfelder reserves the right to modify the report should additional data become available that would indicate such modifications are needed to accurately reflect the conditions found. This report may be only used by the client and only for the purposes stated within a reasonable time from its issuance, but in no event later than one year from the date of the report. Land or facility use, on and off-site conditions, regulations, or other factors may change over time, and additional work may be required with the passage of time. Any party other than the SLVSWMF who wishes to use this report shall notify Kleinfelder. Based on the intended use of the report, Kleinfelder may require that additional work be performed and that an updated report be issued. Any unauthorized use of this document will release Kleinfelder from any liability. The client agrees to defend, indemnify, and hold harmless Kleinfelder from any claim or liability associated with such unauthorized use or non-compliance. 25000032.001A/SLC25R177345 Page 10 of 10 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com 5 REFERENCES ___________________________________________________________________________________ EPA, 2002. EPA Guidance on Preparing a Quality Assurance Project Plan, QA/G-5, EPA/240/R-02/009, December 2002. EPA, 2017. Low Stress (low flow) Purging and Sampling Procedure for the Collection of Groundwater Samples from Monitoring Wells, Environmental Protection Agency, September 2017. Kleinfelder, 2023. Groundwater Monitoring Plan, Document No SLC23R151837, dated April 6, 2023. A 4,235.38 12.66 4,222.72 B 4,234.57 10.73 4,223.84 O 4,238.47 7.68 4,230.79 P 4,235.69 8.24 4,227.45 R 4,233.85 11.58 4,222.27 SSS 4,230.17 8.83 4,221.34 T 4,225.96 2.93 4,223.03 U 4,229.74 5.78 4,223.96 V 4,226.52 2.37 4,224.15 XX 4,234.43 8.96 4,225.47 Y 4,235.10 11.88 4,223.22 Z 4,234.63 11.73 4,222.90 Notes TOC = top of casing ft = feet amsl = above mean sea level (vertical datum: NAVD88) * Table 1 Department of Natural Resources Landfill Groundwater Elevation Data Well ID Fall 2024 Depth-to- Groundwater (ft below TOC) Groundwater Elevation (ft amsl) TOC Elevation (ft amsl)* Salt Lake Valley Solid Waste Management Facility = elevations use NAD83/NAVD88 horizontal and vertical datums in Utah State Plane, Central Zone, US Survey Feet 25000032.001A/SLC25R177345 © 2025 Kleinfelder Table 1 Page 1 of 1 January 27, 2025 B B 10/31/2024 08:22:00 O O 10/31/2024 10:36:00 R R 10/31/2024 12:10:00 SSS SSS 11/01/2024 07:53:00 T T 11/01/2024 09:40:00 U U 11/01/2024 11:11:00 V V 10/30/2024 11:47:00 XX XX 10/29/2024 10:48:00 Y Y 10/30/2024 08:00:00 Y DUP-2 10/30/2024 07:00:00 Z Z 10/30/2024 10:00:00 Fall 2024 DUP-2 = Duplicate sample collected from groundwater monitoring well Y Table 2 Groundwater Sample ID Summary Salt Lake Valley Solid Waste Management Facility Department of Natural Resources Landfill Time Sample Collected Well ID Field Sample ID Date Sample Collected 25000032.001A/SLC25R177345 © 2025 Kleinfelder Table 2 Page 1 of 1 January 27, 2025 Alkalinity as CaCO3 Bicarbonate as CaCO3 Carbonate as CaCO3 Sulfate Chloride Calcium Potassium Sodium Magnesium Antimony (Dissolved) Arsenic (Dissolved) Barium (Dissolved) Beryllium (Dissolved) Cadmium (Dissolved) Chromium (Dissolved) Cobalt (Dissolved) Copper (Dissolved) Iron (Dissolved) Lead (Dissolved) Manganese (Dissolved) Mercury (Dissolved) Nickel (Dissolved) Selenium (Dissolved) Silver (Dissolved) Thallium (Dissolved) Vanadium (Dissolved) Zinc (Dissolved) Total Organic Carbon (TOC) Ammonia as N Nitrate as N Nitrite as N Phenols Sulfate Total Dissolved Solids (TDS) Chemical Oxygen Demand (COD) (Active Landfill Only) Turbidity Active Landfill: Volatile Organics (EPA 8260 and EPA 504 for EDB & DBCP) Wildlife Landfill: Volatile Organics (EPA 8260) Other Organics Table 3 Laboratory Analytes for Groundwater Monitoring Salt Lake Valley Solid Waste Management Facility General Minerals Dissolved Metals Department of Natural Resources Landfill re-82 Landfill: Volatile Organics (EPA 8260) Table 3 Page 1 of 1 January 27, 2025 Antimony Arsenic Nickel Sample ID Date Result (mg/L)Result (mg/L)Result (mg/L) R 10/31/2024 0.000425 0.0358 0.000751 J SSS 11/01/2024 < 0.0200 0.0179 0.117 T 11/01/2024 0.00408 J 0.00752 0.006 U 11/01/2024 < 0.00400 0.0850 < 0.00200 V 10/30/2024 < 0.00400 0.207 < 0.00200 XX 10/29/2024 0.000585 J 0.0491 < 0.00200 Y 10/30/2024 0.00261 J 0.0403 0.00391 J Z 10/30/2024 0.000439 J 0.0203 < 0.00200 B 10/31/2024 0.00239 J 0.161 0.00304 O 10/31/2024 0.00653 0.461 0.00227 0.006 mg/L 0.020 mg/L 0.1 mg/L Notes: mg/L = milligrams per liter Bold = Analytical result exceeds SWGQPS *= In 2009, the Division of Waste Management and Radiation Control approved a revised Regulatory Action Level, raising the SWGQPS for arsenic from 0.010 mg/L to 0.020 mg/L. Analyte Solid Waste Groundwater Quality Protection Standard (SWGQPS) * Table 4 Summary of SWGQPS Exceedances Salt Lake Valley Solid Waste Management Facility Department of Natural Resources Landfill Fall 2024 25000032.001A/SLC25R177345 © 2025 Kleinfelder Table 4 Page 1 of 1 January 27, 2025 11 / 1 1 / 1 9 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 < 0 . 0 0 2 0 0 0 . 0 0 2 3 5 06 / 0 9 / 2 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 11 / 1 9 / 2 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 1 0 3 U 06 / 0 7 / 2 1 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 11 / 0 2 / 2 1 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 1 0 3 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 0 . 0 0 2 0 3 B J < 0 . 0 1 0 3 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 06 / 1 3 / 2 2 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 0 . 0 0 1 7 J 10 / 1 2 / 2 2 < 0 . 0 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 4 0 0 06 / 1 0 / 2 3 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 2 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 10 / 1 0 / 2 3 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 05 / 2 9 / 2 4 < 0 . 0 0 4 0 0 < 0 . 0 2 0 0 < 0 . 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 0 4 0 0 < 0 . 0 2 0 0 < 0 . 0 2 0 0 < 0 . 0 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1 9 1 1 5 0 1 2 8 0 9 2 8 0 1 7 1 0 < 1 . 0 0 5 8 5 1 7 3 0 3 5 3 0 1 3 7 0 9 2 9 0 06 / 0 9 / 2 0 1 2 3 0 1 4 2 0 1 0 8 0 0 1 8 9 0 5 5 3 5 9 4 1 9 2 0 3 9 7 0 1 7 0 0 9 2 2 0 11 / 1 9 / 2 0 1 2 8 0 1 4 1 0 1 0 4 0 0 1 9 7 0 5 2 2 5 9 1 2 0 3 0 4 4 1 0 2 0 1 0 9 4 4 0 06 / 0 7 / 2 1 1 2 8 0 1 3 8 0 1 2 0 0 0 1 9 3 0 5 3 3 5 7 0 1 9 1 0 4 0 7 0 2 5 9 0 1 0 4 0 0 11 / 0 2 / 2 1 1 0 6 0 1 0 2 0 1 1 2 0 0 2 0 2 0 5 3 4 5 8 5 1 9 1 0 4 4 3 0 2 3 1 0 9 0 9 0 06 / 1 3 / 2 2 1 2 8 0 1 3 8 0 1 2 5 0 0 1 8 8 0 5 4 6 5 9 4 V 2 0 0 0 4 2 4 0 2 0 7 0 V 9 8 4 0 10 / 1 2 / 2 2 1 2 5 0 1 3 1 0 V 1 1 4 0 0 1 9 5 0 5 5 5 5 6 0 2 0 2 0 4 7 5 0 2 3 7 0 1 0 4 0 0 06 / 1 0 / 2 3 1 2 8 0 1 4 7 0 1 1 2 0 0 1 9 8 0 7 9 5 6 3 5 2 0 9 0 3 2 5 0 5 1 6 0 1 0 4 0 0 10 / 1 0 / 2 3 1 2 7 0 1 3 8 0 1 2 6 0 0 1 9 1 0 7 1 3 1 9 7 2 1 7 0 3 2 7 0 2 6 9 0 1 0 3 0 0 05 / 2 9 / 2 4 1 3 8 0 1 4 2 0 1 1 4 0 0 2 3 3 0 6 6 6 7 3 . 1 2 2 2 0 3 0 9 0 3 1 8 0 V 1 1 2 0 0 10 / 2 4 / 2 4 1 2 0 0 1 3 9 0 1 1 0 0 0 2 1 9 0 6 1 7 5 8 4 2 1 0 0 4 4 0 0 3 0 0 0 9 3 1 0 11 / 1 1 / 1 9 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 0. 3 1 9 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 0. 9 5 7 06 / 0 9 / 2 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 0. 3 6 5 0. 6 1 3 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 1. 4 5 11 / 1 9 / 2 0 0. 1 3 0 < 0 . 1 0 0 < 1 0 . 0 < 5 . 0 0 < 0 . 1 0 0 0. 3 0 3 < 5 . 0 0 < 5 . 0 0 < 0 . 1 0 0 < 5 0 . 0 06 / 0 7 / 2 1 < 0 . 1 0 0 < 0 . 1 0 0 < 1 0 . 0 < 1 . 0 0 0. 1 6 7 0. 2 9 9 < 1 . 0 0 < 5 . 0 0 < 0 . 1 0 0 < 1 0 . 0 J5 11 / 0 2 / 2 1 < 1 . 0 0 < 0 . 1 0 0 < 1 0 . 0 < 1 . 0 0 < 0 . 1 0 0 0. 2 8 2 < 0 . 1 0 0 < 5 . 0 0 < 1 . 0 0 < 1 . 0 0 06 / 1 3 / 2 2 0. 0 6 7 5 J < 0 . 1 0 0 < 1 0 . 0 0. 3 2 6 B 0. 1 9 2 0. 2 6 4 < 0 . 1 0 0 < 0 . 5 0 0 < 0 . 1 0 0 2. 0 3 10 / 1 2 / 2 2 < 1 . 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 2. 5 4 B 06 / 1 0 / 2 3 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 1. 1 3 0. 1 9 8 B < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 10 / 1 0 / 2 3 0. 1 2 2 0. 1 0 7 B < 1 . 0 0 < 1 . 0 0 < 0 . 1 0 0 0. 5 6 1. 2 5 < 1 . 0 0 < 1 . 0 0 1. 8 05 / 2 9 / 2 4 0. 2 5 Q 0. 5 7 3 Q 1. 6 2 1. 1 4 0. 2 3 2 Q 0. 1 0 2 0. 7 9 7 J < 1 . 0 0 Q 1. 2 9 J6 2. 7 9 10 / 2 4 / 2 4 < 1 . 0 0 < 0 . 1 0 0 0 < 1 . 0 0 0 < 1 . 0 0 < 0 . 1 0 0 0 0. 1 9 8 < 1 . 0 0 J6 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 Ca r b o n a t e (a s C a C O 3 ) SW G Q P S = N E Bi c a r b o n a t e (a s C a C O 3 ) SW G Q P S = N E Ch l o r i d e SW G Q P S = N E Ni t r a t e SW G Q P S = N E 2 5 0 0 0 0 3 2 . 0 0 1 A / S L C 2 5 R 1 7 7 3 4 5 © 2 0 2 5 K l e i n f e l d e r Ta b l e 5 Pa g e 7 o f 9 Ja n u a r y 2 7 , 2 0 2 5 O B DI S S O L V E D M E T A L S ( m g / L ) Y V AN A L Y T E U T Z X X R S S S ST A R T D A T E O F SA M P L I N G E V E N T TA B L E 5 Su m m a r y O f L a b o r a t o r y A n a l y t i c a l R e s u l t s No v e m b e r 2 0 1 9 t h r o u g h N o v e m b e r 2 0 2 4 Sa l t L a k e V a l l e y S o l i d W a s t e M a n a g e m e n t F a c i l i t y De p a r t m e n t o f N a t u r a l R e s o u r c e s L a n d f i l l 11 / 1 1 / 1 9 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 06 / 0 9 / 2 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 11 / 1 9 / 2 0 < 0 . 1 0 0 < 0 . 1 0 0 < 1 0 . 0 < 5 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 5 . 0 0 < 5 . 0 0 < 0 . 1 0 0 < 5 0 . 0 06 / 0 7 / 2 1 < 0 . 1 0 0 < 0 . 1 0 0 < 1 0 . 0 < 1 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 5 . 0 0 < 0 . 1 0 0 < 1 0 . 0 J5 11 / 0 2 / 2 1 < 1 . 0 0 < 0 . 1 0 0 < 1 0 . 0 < 1 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 5 . 0 0 < 1 . 0 0 < 1 . 0 0 06 / 1 3 / 2 2 < 0 . 1 0 0 < 0 . 1 0 0 < 1 0 . 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 5 0 0 < 0 . 1 0 0 < 1 . 0 0 10 / 1 2 / 2 2 < 1 . 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 06 / 1 0 / 2 3 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 10 / 1 0 / 2 3 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 0 . 1 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 05 / 2 9 / 2 4 < 0 . 1 0 0 Q 0. 1 3 5 Q 5. 7 1 1. 3 0. 1 6 7 Q 1. 2 1 1. 4 3 2. 2 7 Q 2. 1 1 J6 3. 9 4 10 / 2 4 / 2 4 < 1 . 0 0 < 0 . 1 0 0 0 < 1 . 0 0 0 < 1 . 0 0 < 0 . 1 0 0 0 < 0 . 1 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 < 1 . 0 0 11 / 1 1 / 1 9 < 0 . 0 4 0 0 0. 0 5 2 0 B P 1 < 0 . 0 4 0 0 < 0 . 0 4 0 0 J6 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 06 / 0 9 / 2 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 0. 0 9 5 2 < 0 . 0 4 0 0 J6 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 11 / 1 9 / 2 0 0. 0 4 1 8 < 0 . 0 4 0 0 J5 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 0. 0 3 4 0 0. 0 2 1 5 06 / 0 7 / 2 1 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 11 / 0 2 / 2 1 < 0 . 0 4 0 0 J6 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 06 / 1 3 / 2 2 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 0. 0 1 3 0 J 0. 0 2 1 0 J < 0 . 0 4 0 0 J5 < 0 . 0 4 0 0 10 / 1 2 / 2 2 < 0 . 0 4 0 0 < 0 . 0 4 0 0 J6 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 06 / 1 0 / 2 3 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 10 / 1 0 / 2 3 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 05 / 2 9 / 2 4 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 10 / 2 4 / 2 4 < 0 . 0 4 0 0 0. 0 1 4 7 J 0. 0 0 9 9 J < 0 . 0 4 0 0 P1 < 0 . 0 4 0 0 0. 0 1 0 7 B J < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 < 0 . 0 4 0 0 11 / 1 1 / 1 9 31 8 94 . 8 25 7 0 61 9 10 3 14 7 62 3 11 9 0 47 9 49 1 0 06 / 0 9 / 2 0 33 2 98 . 4 31 7 0 68 0 11 2 12 8 69 5 14 1 0 48 8 49 8 0 11 / 1 9 / 2 0 40 4 93 31 6 0 65 8 11 6 13 4 68 6 15 1 0 66 9 54 0 0 06 / 0 7 / 2 1 34 6 79 . 6 37 5 0 70 6 11 5 12 7 70 4 13 9 0 76 8 52 5 0 V 11 / 0 2 / 2 1 33 5 53 . 4 34 8 0 71 6 11 3 13 5 73 5 16 1 0 83 0 44 6 0 06 / 1 3 / 2 2 33 9 77 . 1 41 2 0 72 1 11 3 14 7 78 1 16 0 0 55 9 V 51 7 0 10 / 1 2 / 2 2 33 9 73 . 6 36 9 0 69 5 12 7 14 5 77 0 18 4 0 73 2 54 6 0 06 / 1 0 / 2 3 34 5 94 36 1 0 69 5 12 8 17 0 78 9 11 0 0 23 8 0 54 1 0 10 / 1 0 / 2 3 32 6 90 37 6 0 64 1 12 1 15 3 73 3 11 6 0 92 4 53 0 0 05 / 2 9 / 2 4 37 4 99 . 1 37 1 0 78 8 12 4 23 . 2 87 6 10 0 0 11 6 0 V 59 6 0 10 / 2 4 / 2 4 33 4 93 . 2 35 6 0 82 3 11 8 14 8 85 8 V 16 1 0 76 4 49 7 0 11 / 1 1 / 1 9 21 5 0 J3 40 5 0 16 6 0 0 37 9 0 10 1 0 J3 12 0 0 37 1 0 78 8 0 34 3 0 21 7 0 0 06 / 0 9 / 2 0 29 9 0 34 9 0 20 0 0 0 37 4 0 12 1 0 12 2 0 39 9 0 69 0 0 31 7 0 17 6 0 0 11 / 1 9 / 2 0 27 6 0 44 6 0 20 3 0 0 41 7 0 12 1 0 13 5 0 43 6 0 86 0 0 44 9 0 25 0 0 0 06 / 0 7 / 2 1 27 5 0 41 6 0 23 8 0 0 41 9 0 11 8 0 12 5 0 44 0 0 80 6 0 35 7 0 21 4 0 0 11 / 0 2 / 2 1 28 6 0 41 3 0 21 6 0 0 41 2 0 12 5 0 13 2 0 43 5 0 94 4 0 60 0 0 22 0 0 0 06 / 1 3 / 2 2 21 4 0 30 9 0 24 6 0 0 46 3 0 Q 11 8 0 J3 11 0 0 44 2 0 96 6 0 43 2 0 J3 21 2 0 0 10 / 1 2 / 2 2 27 8 0 37 7 0 22 4 0 0 41 9 0 13 4 0 12 1 0 47 0 0 89 6 0 53 0 0 35 2 0 0 06 / 1 0 / 2 3 29 1 0 52 1 0 25 0 0 0 37 6 0 16 4 0 13 1 0 38 7 0 86 8 0 18 0 0 0 27 6 0 0 10 / 1 0 / 2 3 26 8 0 26 3 0 Q 25 2 0 0 33 1 0 14 2 0 11 9 0 27 6 0 95 4 0 66 0 0 22 9 0 0 05 / 2 9 / 2 4 19 7 0 36 8 0 22 9 0 0 46 3 0 13 6 0 14 9 0 51 9 0 80 6 0 51 2 0 24 2 0 0 10 / 2 4 / 2 4 30 1 0 43 2 0 T8 23 5 0 0 47 6 0 13 2 0 13 3 0 52 3 0 86 8 0 67 6 0 25 4 0 0 Ni t r i t e SW G Q P S = N E Ph e n o l i c s SW G Q P S = N E Su l f a t e SW G Q P S = N E To t a l D i s s o l v e d So l i d s ( T D S ) SW G Q P S = N E 2 5 0 0 0 0 3 2 . 0 0 1 A / S L C 2 5 R 1 7 7 3 4 5 © 2 0 2 5 K l e i n f e l d e r Ta b l e 5 Pa g e 8 o f 9 Ja n u a r y 2 7 , 2 0 2 5 O B DI S S O L V E D M E T A L S ( m g / L ) Y V AN A L Y T E U T Z X X R S S S ST A R T D A T E O F SA M P L I N G E V E N T TA B L E 5 Su m m a r y O f L a b o r a t o r y A n a l y t i c a l R e s u l t s No v e m b e r 2 0 1 9 t h r o u g h N o v e m b e r 2 0 2 4 Sa l t L a k e V a l l e y S o l i d W a s t e M a n a g e m e n t F a c i l i t y De p a r t m e n t o f N a t u r a l R e s o u r c e s L a n d f i l l 11 / 1 1 / 1 9 1. 4 0 B 37 . 4 13 . 4 1. 8 1 B < 1 . 0 0 < 1 . 0 0 2. 3 5 4. 7 3 6. 0 7 25 . 0 06 / 0 9 / 2 0 1. 1 1 B 44 . 9 11 . 5 1. 7 2 < 1 . 0 0 < 1 . 0 0 1. 9 9 3. 3 5 4. 7 1 26 . 2 11 / 1 9 / 2 0 < 1 . 0 0 47 . 6 14 . 0 1. 8 7 < 1 . 0 0 < 1 . 0 0 2. 0 4 3. 0 9 5. 9 9 25 . 7 06 / 0 7 / 2 1 1. 2 1 B 44 . 9 13 . 2 1. 9 8 B < 1 . 0 0 < 1 . 0 0 2. 3 7 B 3. 4 8 4. 1 6 27 . 1 11 / 0 2 / 2 1 < 1 . 0 0 59 . 7 23 . 1 2. 1 9 B 0. 3 2 4 J 0. 4 2 6 B J 2. 4 3 B 3. 7 0 B 4. 8 2 15 . 8 06 / 1 3 / 2 2 1. 1 7 B 40 . 5 14 . 8 2. 3 3 0. 5 8 3 B J 0. 5 6 7 B J 2. 4 4 3. 4 7 B 3. 6 9 B 23 . 8 10 / 1 2 / 2 2 1. 1 9 B 44 . 5 15 . 7 2. 2 1 B < 1 . 0 0 < 1 . 0 0 4. 4 B 3. 8 3 B 5. 8 2 23 . 8 06 / 1 0 / 2 3 1. 4 1 B 41 . 2 15 . 1 2. 8 1 B < 1 . 0 0 < 1 . 0 0 2. 7 2 B 11 . 6 21 . 6 26 . 2 10 / 1 0 / 2 3 1. 3 0 48 . 7 17 . 1 2. 3 < 1 . 0 0 < 1 . 0 0 2. 6 3 7. 7 1 9. 7 4 25 . 8 05 / 2 9 / 2 4 2. 3 6 B 41 . 7 16 . 3 2. 4 1. 2 5 B 0. 6 3 5 J 2. 7 6. 6 1 15 . 1 22 . 2 10 / 2 4 / 2 4 1. 1 3 46 . 4 18 . 6 2. 0 7 0. 6 0 8 J 0. 2 2 2 J 2. 7 4 B 5. 2 8 8. 4 8 23 . 9 11 / 1 1 / 1 9 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 06 / 0 9 / 2 0 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 11 / 1 9 / 2 0 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 06 / 0 7 / 2 1 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 11 / 0 2 / 2 1 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 06 / 1 3 / 2 2 a l l N D 1 , 1 - D C E a l l N D a l l N D a l l N D a l l N D a l l N D 1 , 1 D C E a l l N D a l l N D 10 / 1 2 / 2 2 a l l N D 2 , 2 - D C P a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 06 / 1 0 / 2 3 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 10 / 1 0 / 2 3 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 05 / 2 9 / 2 4 a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D a l l N D 10 / 2 4 / 2 4 al l N D al l N D al l N D al l N D al l N D al l N D al l N D al l N D al l N D al l N D No t e s : SW G Q P S = S o l i d W a s t e G r o u n d w a t e r Q u a l i t y P r o t e c t i o n S t a n d a r d E s t a b l i s h e d i n U t a h A d m i n i s t r a t i v e C o d e R 3 1 5 - 3 0 8 - 4 . * = I n 2 0 0 9 t h e D W M R C a p p r o v e d a r e v i s e d R e g u l a t o r y A c t i o n L e v e l , r a i s i n g t h e S W G Q P S f o r a r s e n i c f r o m 0 . 0 1 0 m g / L t o 0 . 0 2 0 m g / L . NE Bo l d = I n d i c a t e s a S W G Q P S e x c e e d a n c e . V a l u e s r e p o r t e d a b o v e t h e e s t a b l i s h e d S W G Q P S w i l l b e b o l d e d , e x c l u d i n g t h e R D L ( r e p o r t i n g d e t e c t i o n l i m i t ) NM = N o t m e a s u r e d ND = n o t d e t e c t e d al l N D = I n d i c a t e s a l l c o n c e n t r a t i o n s r e p o r t e d a r e b e l o w t h e R D L < = I n d i c a t e s t h e c o n c e n t r a t i o n i s l e s s t h a n t h e R D L + = A n a l y z e d f o r t o t a l m e t a l c o n t e n t '1 , 1 D C E = D i - c h l o r o e t h a n e '2 , 2 D C P = D i - c h l o r o p r o p e n e Qu a l i f i e r s @ = H i g h R P D d u e t o s u s p e c t e d s a m p l e n o n - h o m o g e n e i t y o r m a t r i x i n t e r f e r e n c e B = T h e s a m e a n a l y t e i s f o u n d i n t h e a s s o c i a t e d b l a n k J3 = T h e a s s o c i a t e d b a t c h Q C w a s o u t s i d e t h e e s t a b l i s h e d q u a l i t y c o n t r o l r a n g e f o r p r e c i s i o n J4 ' = T h e a s s o c i a t e d b a t c h Q C w a s o u t s i d e t h e e s t a b l i s h e d q u a l i t y c o n t r o l r a n g e f o r a c c u r a c y . J5 ' = T h e s a m p l e m a t r i x i n t e r f e r e d w i t h t h e a b i l i t y t o m a k e a n y a c c u r a t e d e t e r m i n a t i o n ; s p i k e v a l u e i s h i g h J6 = T h e s a m p l e m a t r i x i n t e r f e r e d w i t h t h e a b i l i t y t o m a k e a n y a c c u r a t e d e t e r m i n a t i o n ; s p i k e v a l u e i s l o w O1 = The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. P1 = R P D v a l u e n o t a p p l i c a b l e f o r s a m p l e c o n c e n t r a t i o n s l e s s t h a n 5 t i m e s t h e r e p o r t i n g l i m i t . Q = S a m p l e w a s p r e p a r e d a n d / o r a n a l y z e d p a s t h o l d i n g t i m e a s d e f i n e d i n t h e m e t h o d . C o n c e n t r a t i o n s s h o u l d b e c o n s i d e r e d m i n i m u m v a l u e s . T8 = S a m p l e ( s ) r e c e i v e d p a s t / t o o c l o s e t o h o l d i n g t i m e e x p i r a t i o n U = B e l o w D e t e c t a b l e L i m i t s : I n d i c a t e s t h a t t h e a n a l y t e w a s n o t d e t e c t e d . V = T h e s a m p l e c o n c e n t r a t i o n i s t o o h i g h t o e v a l u a t e a c c u r a t e s p i k e r e c o v e r i e s = N o t E s t a b l i s h e d Or g a n i c P a r a m e t e r s To t a l O r g a n i c C a r b o n (T O C ) SW G Q P S = N E Vo l a t i l e O r g a n i c Co m p o u n d s ( V O C s ) SW G Q P S = V A R I E S 2 5 0 0 0 0 3 2 . 0 0 1 A / S L C 2 5 R 1 7 7 3 4 5 © 2 0 2 5 K l e i n f e l d e r Ta b l e 5 Pa g e 9 o f 9 Ja n u a r y 2 7 , 2 0 2 5 Relative Percent Difference Y DUP-2 (RPD) Antimony 0.00261 0.0024 8.38 Arsenic 0.0403 0.0393 2.51 Barium 0.104 0.103 0.97 Beryllium < 0.0100 < 0.0100 NA Cadmium 0.00342 0.0027 23.53 Calcium 211 207 1.91 Chromium < 0.0100 < 0.0100 NA Cobalt < 0.0100 < 0.0100 NA Copper < 0.0250 < 0.0250 NA Iron < 0.500 < 0.500 NA Lead < 0.0100 < 0.0100 NA Magnesium 204 200 1.98 Manganese 0.808 0.8490 4.9 Mercury < 0.000200 < 0.000200 NA Nickel 0.00391 0.0033 16.92 Potassium 137 135 1.47 Selenium < 0.0100 < 0.0100 NA Silver < 0.0100 < 0.0100 NA Sodium 3070 3070 0.00 Thallium < 0.0100 < 0.0100 NA Vanadium < 0.0250 < 0.0250 NA Zinc < 0.125 < 0.125 NA Alkalinity 725 737 1.64 Ammonia 0.689 0.685 0.58 Bicarbonate 725 737 1.64 Carbonate < 20.0 < 20.0 NA Chloride 4400 4260 3.2 Nitrate < 1.00 < 1.00 NA Nitrite < 1.00 < 1.00 NA Phenolics < 0.0400 0.0263 NA Sulfate 1610 1600 0.62 TDS 8680 8860 2.05 TOC 1.52 1.77 15.2 VOCs All <RDL All <RDL NA Notes RDL = Reporting Detection Limit NA <= Indicates the concentration is less than the RDL Bold = RPD exceeds the EPA guideline of 20% TDS = total dissolved solids TOC = total organic carbon VOCs = volatile organic compounds DNR Duplicate Well YANALYTE = RPD not calculated for this parameter because one or both samples were less than the RDL Table 6 Salt Lake Valley Solid Waste Management Facility Summary of Quality Control Results Department of Natural Resources Landfill Fall 2024 DISSOLVED METALS (mg/L) INORGANIC PARAMETERS (mg/L) ORGANIC PARAMETERS (mg/L) 25000032.001A/SLC25R177345 © 2025 Kleinfelder Table 6 Page 1 of 1 January 27, 2025 0 1 2 SCALE IN MILES£Aerial: ESRI World Street Map. The information included on this graphic representation has been compiled from a variety of sources and is subject to change without notice. Kleinfelder makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a land survey product nor is it designed or intended as a construction design document. The use or misuse of the information contained on this graphic representation is at the sole risk of the party using or misusing the information. SITE VICINITY MAP SALT LAKE VALLEY SOLID WASTE MANAGEMENT FACILITY ACTIVE LANDFILL SALT LAKE COUNTY, UTAH PROJECT NO. FILE NAME: FIGURE 1 DRAWN: CHECKED BY: DRAWN BY: 20180434 SEP 2017 DP KFH Fig1_Active_Spring17.mxd Salt Lake Valley Solid Waste Management Facility 24000052PROJECT NO DRAWN DRAWN BY CHECKED BY 25000032 SEP 2017 KFH DP 25000032.001A/SLC25R177345 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com APPENDIX A FIELD DATA SHEETS ___________________________________________________________________________________ Pe r s o n n e l : D . S a l a s P r o j e c t M a n a g e r : D y l a n P i k e Pr o j e c t N o . : P r o j e c t N a m e : S L V S W M F G r o u n d w a t e r Si t e C o n d i t i o n s : C l e a r S k i e s , C a l m W i n d , 7 2 ° F We l l Ti m e Pr o d u c t St a t i c T o t a l I. D . (2 4 h o u r ) in W e l l ? W a t e r L e v e l D e p t h C a p L o c k Co m m e n t s Ye s \ N o ( f t . \ t o c ) ( f t . \ t o c ) A 11 4 9 No 12 . 6 6 1 8 . 5 8 Y e s N o B 10 5 0 No 10 . 7 3 1 6 . 4 4 Y e s Y e s R o o t s i n W e l l O 13 0 2 No 7. 6 8 1 9 . 6 1 Y e s Y e s P 11 5 7 No 8. 2 4 1 9 . 1 5 Y e s N o R 11 3 7 No 11 . 5 8 2 3 . 1 8 Y e s Y e s SS S 11 2 5 No 8. 8 3 2 0 . 2 1 Y e s Y e s T 11 1 9 No 2. 9 3 1 7 . 2 2 Y e s Y e s U 11 0 7 No 5. 7 8 2 4 . 8 8 Y e s Y e s V 11 0 0 No 2. 3 7 2 6 . 6 2 Y e s Y e s XX 10 2 5 No 8. 9 6 2 7 . 5 5 Y e s Y e s Y 10 4 0 No 11 . 8 8 2 0 . 3 7 Y e s Y e s Z 10 3 3 No 11 . 7 3 2 5 . 8 8 Y e s Y e s f t . \ t o c = f e e t b e l o w t o p o f c a s i n g Ye s o r N o DN R Gr o u n d w a t e r G a u g i n g S h e e t Da t e : 1 0 - 2 3 - 2 0 2 4 2 5 0 0 0 0 3 2 / 0 1 Se c u r i t y u: \ d p i k e \ f o r m s \ c o m b i n e d w a t e r l e v e l w o r k s h e e t ( s l v s w m f ) . x l s 25000032.001A/SLC25R177345 January 27, 2025 © 2025 Kleinfelder www.kleinfelder.com APPENDIX B LABORATORY ANALYTICAL REPORTS ___________________________________________________________________________________