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Home My WebLink AboutDERR-2024-011524 195 North 1950 West Mailing Address: P.O. Box 144840 Salt Lake City, UT 84114-4840 Telephone (801) 536-4100 ) 359-8853 (801) 536-4284 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF ENVIRONMENTAL RESPONSE AND REMEDIATION Brent H. Everett Director ERRC-158-24 October 21, 2024 Athena Jones US EPA Region 8 Mail Code 8EPR-SR 1595 Wynkoop Street Denver, Colorado 80202-1129 Dear Ms. Jones: Please find enclosed the Portland Cement Site Operable Unit Three Annual Groundwater Monitoring and Sampling Report for sampling completed during April 2024. If you have any questions concerning this report, please contact me at 385-395-7943. Sincerely, Kelsey Robinson Environmental Scientist Division of Environmental Response and Remediation KR/lg Enclosure(s): OU3 Groundwater Monitoring and Sampling Report ecc: Paul Crosbie, Salt Lake County Health Department (letter only) ANNUAL GROUNDWATER AND SURFACE WATER MONITORING AND SAMPLING REPORT Portland Cement OU3 Site Salt Lake City, Utah September 2024 TABLE OF CONTENTS 1.0 INTRODUCTION 1 2.0 PURPOSE AND OBJECTIVES 1 3.0 PROJECT MANAGEMENT 1 4.0 SITE DESCRIPTION AND HISTORY 1 5.0 FIELD ACTIVITIES 3 5.1 Sample Collection and Analysis 3 5.2 Equipment Decontamination 4 5.3 Quality Control Samples 4 5.4 Deviations from Standard Sampling Activities 4 6.0 SUMMARY RESULTS 4 6.1 Groundwater Level Monitoring Results 4 6.2 Field Parameters 5 6.3 Shallow Aquifer Analytical Results 5 6.3.1 COC Concentrations in the Shallow Aquifer 6 6.3.2 Metal Concentrations in ACL Compliance Wells 6 6.4 Surface Water Analytical Results 6 6.5 Intermediate Aquifer Analytical Results 7 7.0 CONTAMINANT TRENDS OVER TIME 7 7.1 Shallow Aquifer Contaminant Trends 8 7.2 Intermediate Aquifer Contaminant Trends 9 8.0 CONCLUSION 9 9.0 REFERENCES 10 LIST OF FIGURES, TABLES, AND APPENDICES FIGURES: Figure 1: Site Location Figure 2: Groundwater Elevations in the Shallow and Intermediate Aquifers Figure 3: Total Metal Concentrations Detected in the Shallow Aquifer Figure 4: Metal Concentrations Detected in the ACL Wells and City Drain Figure 5: Total Metal Concentrations Detected in the Intermediate Aquifer TABLES: Table 1: Field Duplicate Results Table 2: Groundwater Elevations Table 3: Summary of Final Water Quality Field Parameters Table 4: Shallow Aquifer Total Metal Concentrations Table 5: Comparison of ACL Monitoring Well Results to ACL Table 6: Surface Water Metal Concentrations Table 7: Intermediate Aquifer Total Metal Concentrations APPENDICES: Appendix A: Water Quality Field Parameters Appendix B: Analytical Results Appendix C: Water Level Measurement Form Appendix D: Data Trends for Monitoring Wells Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 1 1.0 INTRODUCTION This report was prepared by the Utah Department of Environmental Quality, Division of Environmental Response and Remediation (UDEQ/DERR) to summarize groundwater monitoring and sampling at the Portland Cement OU3 Site (Site) for April 2024. The goal of this sampling is to determine the effectiveness of the selected remedy established in the Record of Decision (ROD) for Operable Unit Three (OU3). OU3 addressed contaminated groundwater in the shallow aquifer. The scope of this investigation included recording water level measurements and collecting groundwater and surface water samples for dissolved and total metal analysis. Activities associated with the April 2024 annual monitoring and sampling event took place on April 22, 23, 24, 25, 29, and 30, 2024, and May 1, 2024. 2.0 PURPOSE AND OBJECTIVES The purpose of groundwater and surface water monitoring is to provide information as to the concentrations and distribution of contaminants at the Site. As specified in the Portland Cement OU3 ROD, long-term monitoring will continue until cleanup goals are attained. The scope of the long-term monitoring program includes groundwater/surface water sampling and analytical data interpretation. The objectives of long-term monitoring are: ● To determine if contaminants are migrating off-site; ● To determine if contaminants are migrating to the intermediate aquifer; ● To determine the effectiveness of the selected remedy in reducing contaminants to their respective cleanup goals; and ● To determine if contaminant concentrations in the city drain exceed performance standards. These objectives are achieved by collecting, analyzing, and evaluating samples from monitoring wells and the city drain. Analytical results are compared to cleanup goals and previous analytical data. 3.0 PROJECT MANAGEMENT Field activities associated with the April 2024 groundwater monitoring and sampling event were conducted by Kelsey Robinson, the UDEQ/DERR Project Manager, with assistance from Tony Howes, the former UDEQ/DERR Project Manager. Groundwater and surface water samples were shipped to the Southwest Research Institute in San Antonio, Texas as specified by the EPA Contract Laboratory Program (CLP). Samples were also submitted under chain of custody to Chemtech- Ford Laboratories in Sandy, Utah for pH and total dissolved solids (TDS). 4.0 SITE DESCRIPTION AND HISTORY The Site is located in Salt Lake City, Utah on the west side of Redwood Road (1700 West) at 1000 South, within a triangular area defined by Indiana Avenue, Redwood Road, and the Jordan River overflow canal (surplus canal). The approximately 70-acre site consists of three separate but adjacent properties known as the West Site, Site 2, and Site 3 (Figure 1). Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 2 The disposal of cement kiln dust (CKD) and chromium-bearing bricks on the Site contaminated soils and groundwater with metals that leached from the waste materials. The CKD and contaminated surface soils were excavated and removed from the Site during the remedial action completed in 1997. The Site was backfilled with clean soil and regraded. Significant concentrations of contaminants remain in the shallow groundwater aquifer that lies beneath the Site. The groundwater aquifers of interest at the Site are the shallow aquifer and the intermediate aquifer. Both are located above the Salt Lake Valley Principal Aquifer which supplies a majority of the drinking water to the Salt Lake Valley. The shallow aquifer is unconfined, while the intermediate aquifer is confined between two locally continuous clay layers. The upper clay layer separates the shallow and intermediate aquifers and is approximately 10 feet thick. The shallow aquifer is comprised of silt and fine-grained sand from the water table down to the upper clay layer at approximately 25 to 30 feet bgs. The intermediate aquifer is comprised of poorly sorted, silty, fine-grained sand to well-sorted medium-grained sand and is typically 5 to 12 feet thick, at depths of 40 to 55 feet bgs. Flow between the two aquifers has historically been upward from the intermediate aquifer to the shallow aquifer. Groundwater flow in the shallow (contaminated) aquifer is complex due to interaction with local surface water and utility pathways. Primary areas of recharge are the unlined surplus canal along the southern boundary of the Site and underflow along the eastern site boundary. Shallow groundwater discharges to the city drain, an unlined stormwater ditch that bisects the Site and flows east to west. The Site is also bisected from north to south by a sanitary sewer. The sewer line bedding material acts as a conduit removing groundwater from the Site and routing it into the city drain. Together, these two features ensure that shallow groundwater beneath the Site is discharged into the city drain. The city drain, surplus canal, sanitary sewer, and a stormwater ditch on the west end of the Site serve as groundwater “boundaries” for the contaminated shallow aquifer. The effect of these groundwater “boundaries,” and the upward vertical gradient from the intermediate aquifer, is that groundwater contamination is contained largely within the Site borders and the shallow aquifer. The water in the shallow aquifer has been impacted over the entire Site, with the highest degree of contamination occurring in locations formerly overlain by CKD wastes. The OU3 ROD established monitored natural attenuation (MNA) as the selected remedy to address the contaminated shallow aquifer. A network of groundwater monitoring wells (Figure 1) was constructed at the Site to monitor concentrations of contaminants in the shallow and intermediate aquifers to ensure the effectiveness of the MNA remedy. At the time the ROD was established, no elevated concentrations of monitored contaminants had been detected in groundwater outside the Site boundaries or in the intermediate aquifer. The Contaminants of Concern (COCs) for groundwater identified in the ROD are arsenic, cadmium, chromium, lead, manganese, molybdenum, and pH. Cleanup goals developed for the shallow aquifer are based on federal maximum contaminant levels (MCLs) and local background water quality for arsenic. Since the shallow aquifer discharges into the sanitary sewer and the city drain and eventually discharges into the Farmington Bay Waterfowl Management Area of the Great Salt Lake, alternate concentration limits (ACLs) were established for the groundwater wells located along the city drain and the sanitary sewer line to protect surface water. These ACLs were calculated by determining what concentrations of individual constituents in groundwater would cause an exceedance of 125% of the Class IIID water standards for aquatic wildlife within the city drain at a designated point of compliance. The ACLs are applied only for the protection of the water in the city drain and are only Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 3 enforced at the shallow aquifer wells along the city drain and sanitary sewer (i.e., PWEA, P2FA, P3CC, P3DA, and P3FA). These five wells are analyzed for both total and dissolved: aluminum, copper, iron, mercury, nickel, selenium, and zinc in addition to the groundwater COCs. Historically, these wells were also analyzed for total and dissolved chromium-6. However, during the April 2024 monitoring and sampling event, chromium-6 was not analyzed following discussions and approval from EPA. An Optimization Review Report was completed for the Site in February of 2024 (HGL and ICF, 2024). Following the completion and review of recommendations for the Site with EPA, future monitoring and sampling events will be conducted on a biannual basis (every two years) at the Site. The next monitoring and sampling event is scheduled for April 2026. 5.0 FIELD ACTIVITIES Samples were collected from nine shallow aquifer monitoring wells (PWEA, PWBA, P2FA, P2HA, P3BB, P3FA, P3GB, P3DA, and P3CC), five intermediate aquifer monitoring wells (PWS, P2M, P3O, P2EA, and P3EA), and one surface water location (CDPOC). Depth to groundwater was measured at two additional shallow aquifer monitoring wells (P2CA and P2GA). Due to recent construction activities, shallow aquifer monitoring well (P2BA) could not be sampled and groundwater could not be measured. The ground surface elevation in the vicinity of well P2BA was raised due to the construction. However, well P2BA was not extended/raised following the completion of construction activities and could not be sampled. Following sampling activities, the PVC casing was extended to the top of the new well elevation (surface-mounted lid) by June 6, 2024. 5.1 Sample Collection and Analysis Sampling activities were conducted according to procedures outlined in Section 4 of the Operations and Maintenance (O&M) Monitoring Plan, Sampling and Analysis Plan (SAP) (URS, 1999). The depth to groundwater from the top of the well casing was measured with an electronic water level meter and recorded prior to well purging and sample collection. Monitoring wells were purged until water quality field parameters were within +/-10% for at least two subsequent readings (Appendix A). Groundwater and surface water samples were collected in certified clean containers. Samples were collected with a low-flow peristaltic pump and disposable polyethylene tubing. All samples were analyzed for total metals, TDS, and pH. Samples collected from wells P2FA, P3FA, PWEA, P3CC, and P3DA and from the city drain (CDPOC) were also analyzed for dissolved metals. Dissolved metal samples were filtered in the field with a new, disposable 0.45-micron filter at each sampling location. Samples obtained for total and dissolved metal analysis were preserved in the field with nitric acid and placed on ice in an insulated cooler. Weather conditions obtained from the National Weather Service website (http://forecast.weather.gov/MapClick.php?lat=38.4494&lon=-112.2302#.WDXS-H04JfV) and recorded at the time of collecting the surface water sample (CDPOC) were partly cloudy and 61° Fahrenheit. Analytical reports from Chemtech-Ford Laboratories and the EPA contract laboratory for the April 2024 annual groundwater monitoring and sampling event are provided in Appendix B. Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 4 5.2 Equipment Decontamination The water level meter was rinsed with de-ionized water between each monitoring well. Disposable polyethylene tubing was used at each monitoring well and surface water sample locations; therefore, tubing decontamination was not required. 5.3 Quality Control Samples A groundwater field duplicate sample (PWAA) was collected in conjunction with sample PWEA. The Relative Percent Differences (RPD) between groundwater sample PWEA and its duplicate (PWAA) are summarized in Table 1. The dissolved copper concentrations did not meet the quality assurance RPD criterion of less than or equal to 20 percent, but they were assigned a “J” qualifier as called for in the Portland Cement Site Quality Assurance Project Plan (URS, 1999). The remaining total and dissolved metal concentrations, TDS, and pH for groundwater met the RPD criterion of less than or equal to 20 percent (Table 1). The RPD was not calculated for analytes with concentrations below the method detection limits. A surface water field duplicate sample (P3AA) was collected in conjunction with sample CDPOC. The RPD between surface water sample CDPOC and its duplicate (P3AA) are also summarized in Table 1. All of the total and dissolved metal concentrations, TDS, and pH for surface water met the RPD criterion of less than or equal to 20 percent, except for copper (Table 1). Copper was assigned a “J” qualifier as called for in the Portland Cement Site Quality Assurance Project Plan (URS, 1999). The RPD was not calculated for analytes with concentrations below the method detection limits. 5.4 Deviations from Standard Sampling Activities No samples or groundwater level measurements were collected from wells B6S, B7S, B6I, PWDA, PWT, PWKA, PWU, P2DA, or P2BA because of damage or removal of the monitoring wells (Figure 1). Due to recent construction activities, shallow aquifer monitoring well (P2BA) could not be sampled and groundwater could not be measured. Following sampling activities, this monitoring well was extended by June 6, 2024. Additionally, during the April 2024 monitoring and sampling event, chromium-6 was not analyzed following discussions and approval from EPA. Based on historically low detections of chromium-6, this analyte is not planned to be analyzed during future monitoring events. 6.0 SUMMARY OF RESULTS 6.1 Groundwater Level Monitoring Results Depths to groundwater for the shallow and intermediate aquifers were recorded on a water level measurement form (Appendix C) and are summarized in Table 2. Groundwater elevations calculated for the shallow aquifer ranged from 4,218.07 feet above mean sea level (amsl) at P2HA to 4,223.75 feet amsl at P3FA. Groundwater elevations calculated for the intermediate aquifer ranged from 4,221.77 feet amsl at P2M to 4,225.06 feet amsl at P3EA (Table 2). Based on groundwater elevations for wells P2CA, P2GA, P2HA, and P2FA, the horizontal groundwater flow direction in the shallow aquifer south of the city drain appears to flow away from the city drain, which is inconsistent with past trends (Figure 2). The well casing for P2CA, P2GA, Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 5 P2HA, and P2FA was modified to accommodate development and the established top-of-casing elevations are likely no longer valid; therefore, the horizontal groundwater flow direction in the shallow aquifer south of the city drain is likely inaccurate. The horizontal groundwater flow direction in the shallow aquifer north of the city drain is toward the city drain and is consistent with past trends. It should also be noted that the well casing for intermediate aquifer well P2M was modified to accommodate for development. Therefore, the established top-of-casing elevation is likely no longer valid at this location. Groundwater elevations calculated for paired monitoring wells found elevations were higher for the intermediate aquifer monitoring wells as compared to elevations for the shallow aquifer monitoring wells (Figure 2). Based on this information, the vertical groundwater flow direction is upwards from the intermediate to the shallow aquifer and is consistent with past trends. 6.2 Field Parameters A summary of the final field parameters recorded for the April 2024 monitoring and sampling event is provided in Table 3. Groundwater temperatures recorded for this monitoring event ranged from 11.92 degrees Celsius (°C) at PWEA to 18.66°C at P3EA. Specific conductivity ranged from 0.58 millisiemens per centimeter (mS/cm) at P3EA to 23.0 mS/cm at P2HA. The pH values recorded for this monitoring event ranged from 7.66 standard units at PWS to 9.74 standard units at PWBA. Turbidity values ranged from zero nephelometric turbidity unit (NTU) at P2M, P3GB, P3FA, and PWEA to 170 NTU at P3EA. Dissolved oxygen levels ranged from 0.07 milligrams per liter (mg/L) at surface water sample location CDPOC to 34.6 mg/L at P3O. Oxidation/reduction potential (ORP) values ranged from -342 millivolts (mV) at P3GB to 254 mV at surface water sample location CDPOC. Dissolved oxygen levels were recorded at each well sampled during the April 2024 monitoring and sampling event. However, the membrane within the water quality parameter device is damaged and cannot accurately record dissolved oxygen. The readings collected and recorded for dissolved oxygen on the water quality field parameters sheets within Appendix A and those listed in Table 7 should be considered inaccurate. 6.3 Shallow Aquifer Analytical Results The cleanup goals for the COCs in the shallow aquifer were derived from MCLs and local background water quality. For arsenic, the local background concentration exceeded the MCL, so the attainment of local background concentrations of 64 micrograms per liter (µg/L) was set as the cleanup goal. For the other contaminants, the attainment of concentrations below the MCLs was set as the cleanup goal. The cleanup goals for the shallow aquifer specified in the ROD are for concentrations of total metals in groundwater. ACLs are applied for the protection of the city drain where the groundwater discharges to the city drain and are only enforced at the shallow wells near the city drain and the sanitary sewer. Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 6 6.3.1 COC Concentrations in the Shallow Aquifer Groundwater samples collected from the nine shallow aquifer monitoring wells in April 2024 were analyzed for total metals and compared to the groundwater cleanup goals (Table 4). Monitoring well locations and detected concentrations are shown in Figure 3. TDS results measured in the shallow aquifer ranged from 1,710 mg/L at P3DA to 21,100 mg/L at P2HA. There are no cleanup goals for TDS. pH values in the shallow aquifer were above the cleanup goal of less than 8 standard units in all nine shallow aquifer monitoring wells. Values for pH ranged from 8.4 at P3BB to 10.0 at PWEA. The total arsenic cleanup goal of 64 µg/L was exceeded in shallow monitoring wells PWEA, PWBA, P2FA, P2HA, P3FA, P3DA, and P3CC. Total arsenic concentrations detected in the shallow aquifer monitoring wells ranged from 11 µg/L in monitoring well P3GB to 1,000 µg/L in P3CC. Cadmium concentrations in monitoring wells PWEA, PWBA, P2HA, P3BB, P3FA, P3GB, P3DA, and P3CC were all below the cleanup goal of 6.2 µg/L. Shallow monitoring well P2FA, was the only monitoring well with a total cadmium concentration detected above the cleanup goal at 16 J µg/L. The total chromium concentrations in shallow aquifer monitoring wells were below the cleanup goal of 100 µg/L. The total lead concentrations in shallow aquifer monitoring wells were below the cleanup goal of 15 µg/L. The total manganese concentrations in shallow aquifer monitoring wells were below the cleanup goal of 440 µg/L. The total molybdenum cleanup goal of 182 µg/L was exceeded in shallow aquifer monitoring wells PWEA, PWBA, P2FA, P2HA, P3FA, P3GB, P3DA, and P3CC. Total molybdenum concentrations detected in the shallow aquifer monitoring wells ranged from 170 J+ in well P3BB to 65,000 J µg/L in P2FA. 6.3.2 Metal Concentrations in ACL Compliance Wells ACLs apply to dissolved metal concentrations and were established for the groundwater wells located along the city drain and the sanitary sewer line to protect surface water. Five ACL point of compliance wells were analyzed for dissolved metals and compared to the ACLs (Table 5). ACL point of compliance locations and detected concentrations are shown in Figure 4. Dissolved metal concentrations in the ACL point of compliance wells were all below the established ACLs. 6.4 Surface Water Analytical Results A surface water sample (CDPOC) was collected from the point of compliance (i.e. confluence of the city drain and the north-south trending stormwater ditch west of I-215; Figure 4) and analyzed for total and dissolved metals. The performance standards documented in the ROD for surface water at the Site require that dissolved metals not exceed 125% of Class IIID water quality standards. Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 7 Metal concentrations in sample CDPOC were less than their established surface water performance standards, except for arsenic (Table 6). The established surface water performance standard for arsenic is 187.5 µg/L. The total concentration for arsenic was 240 µg/L and the dissolved concentration for arsenic was 230 µg/L. Additionally, the laboratory detection limits for cadmium, mercury, and selenium were greater than their established surface water performance standards, and the results may have exceeded the performance standards. These constituents are believed not to be a concern since concentrations in the shallow aquifer were either below laboratory detection limits or groundwater ACLs. In addition to metals analysis, surface water TDS and pH were also measured. TDS and pH levels were 2,360 mg/l and 8.10 standard units, respectively. There is no surface water performance standard for TDS. The pH value was below the surface water performance standard range of 8.13- 11.25. 6.5 Intermediate Aquifer Analytical Results Groundwater samples collected from five intermediate aquifer monitoring wells were analyzed for total metals and compared to the groundwater cleanup goals. Total metal concentrations detected in these five monitoring wells are summarized in Table 7. Monitoring well locations and detected concentrations are shown in Figure 5. The pH value in monitoring wells P2M, P3O, and P3EA exceeded the cleanup goal of 8 standard units. The pH values in well P2M, P3O, and P3EA were 8.1, 8.1, and 8.2 standard units, respectively. Total metal concentrations in the intermediate aquifer were less than the established cleanup goals in monitoring wells PWS, P3O, P2EA, and P3EA. Arsenic, lead, and manganese concentrations in monitoring well P2M exceeded established cleanup goals. The concentrations in well P2M were 85 µg/L, 45 J µg/L, and 820 J µg/L, respectively. Groundwater elevations have consistently demonstrated an upward flow from the intermediate to the shallow aquifer. Therefore, the pH exceedance at wells P2M, P3O, and P3EA in the intermediate aquifer is likely not the result of downward flow from the contaminated shallow aquifer. If groundwater from the shallow aquifer in the vicinity of wells P2M, P3O, and P3EA is migrating to the intermediate aquifer, the transport mechanism is unclear. 7.0 CONTAMINANT TRENDS OVER TIME COC concentration trends for wells screened in the shallow and intermediate aquifers were evaluated with the Mann-Kendall non-parametric statistical test for trend. The evaluation of contaminant trends was completed with a free spreadsheet-based software tool obtained from GSI (GSI, 2012). The results of the GSI statistical trend evaluation are provided in Appendix D. Analytical data for groundwater samples collected from June 2015 to April 2024 were used to perform the statistical test for trends. Analytical data reported as non-detect were assigned a common value less than the smallest measured value in the data set as suggested in the EPA guidance document Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities Unified Guidance (EPA, 2009). A confidence factor of 95% was used for the trend evaluation. Strong increasing or decreasing trends are indicated as having a confidence factor greater than 95% and trends indicated as either “probably decreasing” or “probably increasing” have a confidence factor Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 8 between 90% and 95%. Confidence factors less than 90% were either indicated as “no trend” or “stable”. 7.1 Shallow Aquifer Contaminant Trends The following COC contaminant trends were observed in the shallow aquifer: pH levels have remained fairly constant throughout all sampling events. pH has been consistently above the cleanup goal of 8 standard units in all of the shallow wells. The Mann-Kendall statistical trend analysis found that pH was increasing in wells P2FA and PWEA, probably increasing in well P3BB, decreasing in well P2BA, probably decreasing in well P3GB, stable in wells PWBA, P2HA, and P3FA, and no trends were observed in wells P3CC and P3DA. Arsenic concentrations have consistently remained above the 64 μg/L cleanup goal in wells PWEA, PWBA, P2HA, P3CC, and P3FA. The highest arsenic concentrations are generally found at the northern portion of the site in well P3FA and P3CC with decreased concentrations to the south. The Mann-Kendall statistical trend analysis found that arsenic concentrations were increasing in wells PWEA, PWBA, and P3CC, decreasing in wells P2BA and P2HA, probably decreasing in well P3GB, stable in wells P3BB and P3FA, and no trends were observed in wells P2FA and P3DA. Cadmium concentrations have consistently been below the cleanup goal of 6.2 μg/L in the majority of wells throughout the Site. The Mann-Kendall statistical trend analysis found cadmium concentrations were increasing in well PWEA, probably increasing in well PWBA, decreasing in wells P3FA and P3GB, probably decreasing in well P2BA, stable in well P3DA, and no trend in wells P2FA, P2HA, P3BB, and P3CC. Chromium concentrations have been consistently below the cleanup goal of 100 μg/L in all of the wells throughout the Site. The Mann-Kendall statistical trend analysis found that chromium concentrations were probably increasing in well P2HA, decreasing in wells P2BA and P3FA, stable in well PWBA, and no trend in wells PWEA, P2FA, P3BB, P3CC, P3DA, and P3GB. Lead concentrations have sometimes been above the cleanup goal of 15 μg/L in well P3FA and below the cleanup goal in the remainder of the wells throughout the Site. The Mann-Kendall statistical trend analysis found that lead concentrations were increasing in well P2HA, decreasing in well P3FA, and no trend in wells PWEA, PWBA, P2BA, P2FA, P3BB, P3CC, P3DA, and P3GB. Manganese has sometimes been above the cleanup goal of 440 μg/L in well P3FA. Manganese concentrations have been consistently below the cleanup goal in the remaining wells. The Mann- Kendall statistical trend analysis found manganese concentrations were increasing in wells PWEA and P2HA, probably increasing in well P3BB, decreasing in well P3FA, and no trend in wells PWBA, P2BA, P2FA, P3CC, P3DA, and P3GB. Molybdenum concentrations have consistently remained above the cleanup goal of 182 μg/L in wells PWEA, PWBA, P2BA, P2FA, P2HA, P3CC, P3FA, and P3GB. The Mann-Kendall statistical trend analysis found increasing molybdenum concentrations in wells PWEA and P3CC, probably decreasing in wells P2BA and P3GB, stable in wells P2HA and P3FA, and no trend in wells PWBA, P2FA, P3BB, and P3DA. Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 9 7.2 Intermediate Aquifer Contaminant Trends The following COC contaminant trends were observed in the intermediate aquifer: The pH values have remained fairly constant in the intermediate aquifer since June 2015 and pH levels have remained either below or slightly above the cleanup goal of 8 standard units. The Mann-Kendall statistical trend analysis found that pH was increasing in well P3EA, probably decreasing in well P2M, stable in wells PWS and P3O, and no trend in well P2EA. Arsenic concentrations in wells PWS, P2M, P3EA, P3O, and P2EA have consistently been below the cleanup goal of 64 μg/L since June 2015, except that in the most recent sampling event (April 2024) well P2M exceeded the cleanup goal at 85 μg/L. The Mann-Kendall statistical trend analysis found arsenic levels in the intermediate monitoring wells were increasing in well PWS, stable in wells P2M and P3O, and no trend in wells P3EA and P2EA. Cadmium concentrations have not been detected at levels greater than the cleanup goal of 6.2 μg/L in any of the intermediate wells since June 2015. The Mann-Kendall statistical trend analysis found cadmium levels in the intermediate monitoring wells showed no trend in all of the wells. Chromium concentrations have not been detected at levels greater than the cleanup goal of 100 μg/L in any of the intermediate wells since June 2015. The Mann-Kendall statistical trend analysis found chromium concentrations in the intermediate monitoring wells were stable in well PWS, and no trend in wells P2M, P3EA, P3O, and P2EA. Lead concentrations in the intermediate monitoring wells have been less than the cleanup goal of 15 μg/L since June 2015, except that in the most recent sampling event (April 2024) well P2M exceeded the cleanup goal at 45 μg/L. Additionally, the cleanup goal has been exceeded in well P3EA three times since June 2015. The Man-Kendall statistical trend analysis found lead concentrations in the intermediate monitoring wells were increasing in well P3EA and no trend in wells PWS, P2M, P3O, and P2EA. Manganese concentrations in the intermediate monitoring wells have been less than the cleanup goal of 440 μg/L since June 2015, except that in the most recent sampling event (April 2024) well P2M exceeded the cleanup goal at 820 μg/L. The Mann-Kendall statistical trend analysis found manganese concentrations in the intermediate monitoring wells were probably increasing in well PWS and no trend in wells P2M, P3EA, P3O, and P2EA. Molybdenum concentrations in the intermediate monitoring wells have been less than the cleanup goal of 182 μg/L since June 2015, except in well P3O which historically exceeded the cleanup goal. The Mann-Kendall statistical trend analysis found molybdenum concentrations in the intermediate monitoring wells were decreasing in well P3O, stable in wells PWS and P2M, and no trend in wells P3EA and P2EA. 8.0 CONCLUSION Based on the monitoring and sampling data for April 2024, the following conclusions can be made: ● Groundwater flow directions are consistent with past trends and contaminants do not appear to be migrating off-site or to the intermediate aquifer. The pH value in monitoring wells P2M, P3O, and P3EA exceeded the cleanup goal of 8 standard units. Additionally, arsenic, lead, and manganese concentrations in monitoring well P2M exceeded established Annual Monitoring and Sampling Report April 2024 Portland Cement Site OU3 Page 10 cleanup goals. If groundwater from the shallow aquifer in the vicinity of wells P2M, P3O, and P3EA is migrating to the intermediate aquifer, the transport mechanism is unclear. ● Based on inconsistent groundwater flow direction trends, it is recommended that the top of casing elevation for all monitoring wells at the Site be resurveyed, given the amount of development that has occurred. ● Dissolved metal concentrations in the ACL point of compliance wells were all below the established ACLs. ● With the exception of arsenic, dissolved metal concentrations in the city drain did not exceed performance standards. Additionally, pH was slightly below the performance standard. The laboratory detection limits for mercury and selenium were greater than their established surface water performance standards, and therefore it is unknown if they have exceeded the performance standards. ● Statistical analysis of COC concentration trends in the intermediate aquifer found arsenic, manganese, and lead concentrations were increasing at levels above the cleanup goal in some wells (PWS and P3EA) and molybdenum concentrations were decreasing. It should also be noted that during the April 2024 sampling event arsenic, lead, and manganese exceeded the cleanup goals in well P2M. ● With the exception of wells PWEA, PWBA, P3CC, and P2HA, statistical analysis of COC concentration trends in the shallow aquifer found arsenic, cadmium, chromium, lead, manganese, and molybdenum concentrations are decreasing or have no trend. The statistical analysis found arsenic was increasing at wells PWEA, PWBA, and P3CC; cadmium concentrations were increasing in well PWEA; chromium concentrations were probably increasing in well P2HA; lead concentrations were increasing in well P2HA; manganese concentrations were increasing in wells PWEA and P2HA; and increasing molybdenum concentrations in wells PWEA and P3CC. DERR will continue to monitor the site to identify contaminant trends and assess the progress and validity of the monitored natural attenuation remedy. The next sampling event will be completed in April 2026. 9.0 REFERENCES GSI Environmental Inc. (GSI), 2012, GSI Mann-Kendall Toolkit for Constituent Trend Analysis Version 1, http://www.gsi-net.com/en/software/free-software/gsi-mann-kendall- toolkit.html. HydroGeoLogic, Inc. (HGL) and ICF Incorporated, LLC (ICF), 2024, Optimization Review Report Remedial Process Optimization Study Portland Cement (Kiln Dust 2 & 3) Superfund Site Salt Lake County, Utah EPA Region 8. URS Greiner Woodward Clyde (URS), 1999, Final Operations and Maintenance and Monitoring Plan Sampling and Analysis Plan Quality Assurance Project Plan for the Portland Cement OU3 Site, Salt Lake City, Utah. United States Environmental Protection Agency (EPA), 2009, Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities Unified Guidance, U.S. Environmental Protection Agency, EPA/530/R-09-007. FIGURES @A@A @A@A @A @A @A @A @A @A @A @A @A @A @A@A @A @A @A @A @A @A @A @A @A S u r p l u s C a n a l §¨¦215 Indiana Avenue Be n d i n g R i v e r R o a d 1040 South West Site Site 2 Site 3 B6I PWT PWU P2M P3O PWS P3EA P2EA B6S B7S P2DA P3DA P3CC PWDA PWKA P3BB P3GB P2HA P2GA P2CA P3FA P2FA P2BA PWBA PWEA Salt Lake County, Maxar, Microsoft EXPLANATION Portland Cement Site OU3 April 2024 @A Site Location Figure 1Shallow Monitoring Well #*City Drain Point Of Compliance @A Intermediate Monitoring Wells City Drain Sewer Site Boundary 0 220 440 660 880110 Feet ® Scale:1:4,055 @A @A @A @A @A @A @A @A@A @A @A @A@A @A @A @A @A @A @A @A @A @A @A @A @A S u r p l u s C a n a l §¨¦215 Re d w o o d R o a d Indiana Avenue Be n d i n g R i v e r R o a d 1040 South PWS 4222.91 4220.48 P2CA 4220.28 PWBA 4219.34 PWEA P2M 4221.77 P2BA NC 4219.04 P2GA 4218.07 P2HA P2FA 4221.94 P3CC 4218.63 P3BB 4220.43 P3EA 4225.06 4223.75 P3FA 4221.94 P3GB 4224.18 P3O 4221.70 P3DA P2EA 4224.35 0 Salt Lake County, Maxar, Microsoft EXPLANATION Portland Cement Site OU3 April 2024 @A 0 260 520 780 1,040130 Feet ®Shallow Monitoring Well @A Intermediate Monitoring Wells City Drain Sewer Site Boundary Groundwater Elevations in the Shallow and Intermediate Aquifers Figure 2 Scale:1:4,500Shallow Aquifer Historical Gradient @A @A @A @A @A @A @A @A@A @A @A @A@A @A @A @A @A #* S u r p l u s C a n a l §¨¦215 Re d w o o d R o a d Indiana Avenue Be n d i n g R i v e r R o a d 1040 South West Site Site 2 Site 3 CDPOC Salt Lake County, Maxar, Microsoft 1:5,122Scale: ® 0 280 560 840 1,120140 Feet Shallow Monitoring Well #*City Drain Point Of Compliance @A Intermediate Monitoring Wells City Drain Sewer Site Boundary Total Metal Concentrations Detected in the Shallow Aquifer Figure 3@A April 2024 Portland Cement Site OU3 EXPLANATION Clean Up Goals ug/l pH <8.0 Arsenic 64.00 Cadmium 6.20 Chromium 100 Lead 15.00 Manganese 440.00 Molybdenum 182.00 PWEA pH 10 Arsenic (ug/l)470 Cadmium (ug/l)1.7 J Manganese (ug/l)11 J Molybdenum (ug/l)6900 PWBA pH 9.6 Arsenic (ug/l)98 Cadmium (ug/l)0.41 Manganese (ug/l)11 J Molybdenum (ug/l)1500 P2BA NS P2FA pH 9.3 Arsenic (ug/l)250 Cadmium (ug/l)16 J Chromium (ug/l)11 J+ Manganese (ug/l)27 J Molybdenum (ug/l)65000 P2HA pH 9.3 Arsenic (ug/l)200 Cadmium (ug/l)5.8 J Chromium (ug/l)3.6 J+ Manganese (ug/l)33 J Molybdenum (ug/l)22000 P3BB pH 8.4 Arsenic (ug/l)48 Manganese (ug/l)120 J Molybdenum (ug/l)170 J+ P3FA pH 9.3 Arsenic (ug/l)280 Cadmium (ug/l)0.56 Chromium (ug/l)4.4 J+ Lead (ug/l)4 J Manganese (ug/l)70 J Molybdenum (ug/l)1400 P3GB pH 8.7 Arsenic (ug/l)11 Chromium (ug/l)2.1 J+ Manganese (ug/l)21 J Molybdenum (ug/l)320 P3DA pH 8.9 Arsenic (ug/l)110 Chromium (ug/l)3.6 J+ Manganese (ug/l)31 J Molybdenum (ug/l)650 P3CC pH 9.9 Arsenic (ug/l)1000 Cadmium (ug/l)4.1 J Chromium (ug/l)5.2 J- Manganese (ug/l)32 J Molybdenum (ug/l)26000 #* S u r p l u s C a n a l §¨¦215 Re d w o o d R o a d Indiana Avenue Be n d i n g R i v e r R o a d 1040 South West Site Site 2 Site 3 CDPOC Salt Lake County, Maxar, Microsoft 1:5,122Scale: ® 0 280 560 840 1,120140 Feet #*City Drain Point Of Compliance City Drain Sewer Site Boundary Dissolved Metal Concentrations Detected in the ACL Wells and City Drain Figure 4@A April 2024 Portland Cement Site OU3 EXPLANATION City Drain Discharge Well# Surface Water Performance Standards Analyte ug/l pH 8.13 - 11.25 Aluminum 180.75 Arsenic 187.50 Cadmium 0.3125 Chromium 92.50 Chromium VI 13.75 Copper 11.25 Iron 1,250 Lead 3.13 Mercury 0.01 Nickel 65.00 Selenium 5.75 Silver 2.0 Zinc 150.00 Alternate Concentration Limits Analyte ug/l Aluminum 4,502.33 Arsenic 9,832.68 Cadmium 139.08 Chromium 26,339.81 Chromium VI 569 Copper 1,564.5 Iron 25,875.48 Lead 666.71 Mercury 0.62 Nickel 20,667.94 Selenium 258.75 Silver 6.21 Zinc 13,914.05 PWEA Arsenic (ug/l)460 Cadmium (ug/l)1.6 J Chromium (ug/l)2 J- Copper (ug/l)6.1 J- Nickel (ug/l)13 Selenium (ug/l)9.8 J- P2FA Arsenic (ug/l)170 Cadmium (ug/l)14 J Chromium (ug/l)8.1 J- Copper (ug/l)12 J- Nickel (ug/l)10 Selenium (ug/l)22 J- P3FA Aluminum (ug/l)320 Arsenic (ug/l)260 Cadmium (ug/l)0.46 Copper (ug/l)6.5 J- Iron (ug/l)670 Lead (ug/l)1.9 J Nickel (ug/l)3.4 Selenium (ug/l)7.9 J+ Zinc (ug/l)6.6 P3CC Arsenic (ug/l)1000 Cadmium (ug/l)6 J Chromium (ug/l)6 J- Nickel (ug/l)5.8 Selenium (ug/l)15 J P3DA Arsenic (ug/l)110 Copper (ug/l)4.3 J- Nickel (ug/l)1.5 J Selenium (ug/l)7.3 J+ P2HA pH 8.1 Arsenic (ug/l)230 Chromium (ug/l)3.7 J- Copper (ug/l)3.6 Manganese (ug/l)68 Molybdenum (ug/l)340 Nickel (ug/l)7.8 Zinc (ug/l)6.9 CDPOC @A @A @A @A @A @A @A @A #* S u r p l u s C a n a l §¨¦215 Re d w o o d R o a d Indiana Avenue Be n d i n g R i v e r R o a d 1040 South West Site Site 2 Site 3 CDPOC Salt Lake County, Maxar, Microsoft 1:5,122Scale: ® 0 280 560 840 1,120140 Feet Shallow Monitoring Well #*City Drain Point Of Compliance @A Intermediate Monitoring Wells City Drain Sewer Site Boundary Total Metal Concentrations Detected in the Intermediate Aquifer Figure 5@A April 2024 Portland Cement Site OU3 EXPLANATION PWS pH 7.7 Arsenic (ug/l)37 Manganese (ug/l)40 J P2M pH 8.1 Arsenic (ug/l)85 Cadmium (ug/l)2 Chromium (ug/l)24 J+ Lead (ug/l)45 J Manganese (ug/l)820 J P30 pH 8.1 Arsenic (ug/l)32 Chromium (ug/l)2 J+ Manganese (ug/l)34 J Molybdenum (ug/l)20 J+ P2FA Arsenic (ug/l)170 Cadmium (ug/l)14 J Chromium (ug/l)8.1 J- Copper (ug/l)12 J- P3EA pH 8.2 Arsenic (ug/l)32 Cadmium (ug/l)1.1 Chromium (ug/l)6 J+ Lead (ug/l)12 J Manganese (ug/l)120 J Clean Up Goals ug/l pH <8 Arsenic 64.00 Cadmium 6.20 Chromium 100.00 Lead 15.00 Manganese 440.00 Molybdenum 182.00 P2EA TABLES Table 1: Field Duplicate Results Well ID PWEA PWAA-FD CDPOC P3AA-FD Sample Date 4/23/2024 4/23/2024 4/22/2024 4/22/2024 TDS mg/l @ 180C 7920 8040 1.50 2360 2320 1.71 pH standard units 10.00 10.00 0.00 8.1 8.1 0.00 Chromium VI NA NA NC NA NA NC Total Metals μg/l Aluminum 40 U 40 U NC 34 41 18.67 Arsenic 470.0 460.0 2.15 240 250 4.081632653 Cadmium 1.7 1.4 19.35 0.4 U 0.4 U NC Chromium 4 UJ 4 UJ NC 2.3 2.3 0 Copper 7.3 7.8 6.62 7.7 J 20 U NC Iron 400 U 400 U NC 110.0 130.00 16.66666667 Lead 2 UJ 2 UJ NC 2 UJ 2 UJ NC Manganese 11 11 0.00 70 71 1.418439716 Mercury NA NA NC 0.2 U 0.2 U NC Molybdenum 6900.0 6900.0 0.00 370.0 370.0 0.00 Nickel 12 12 0.00 7.6 7.5 1.32 Selenium 50 U 50 U NC 50 U 50 U NC Silver 1 UJ 1 UJ NC 1 U 1 U NC Zinc 3 J 10 U NC 13 13 0.00 Dissolved Metals μg/l Aluminum 20 U 20 U NC 20 U 20 U NC Arsenic 460 450 2.20 230 240 4.26 Cadmium 1.6 1.8 11.76 0.4 U 0.4 U NC Chromium 2 2.1 4.88 3.7 J- 4 UJ NC Copper 6.1 8.3 30.56 3.6 4.9 30.59 Iron 200 U 200 U NC 200 U 200 U NC Lead 2 U 2 U NC 2 U 2 U NC Manganese 9.3 11 16.75 68 69 1.46 Mercury 0.2 U 0.2 U NC 0.2 U 0.2 U NC Molybdenum 7100.0 6900.0 2.86 340.0 340.0 0.00 Nickel 13 13 0.00 7.8 7.7 1.29 Selenium 9.8 9.4 4.17 5 U 11 J+ NC Silver 2 UJ 2 UJ NC 2 U 2 U NC Zinc 10 U 3.9 J NC 6.9 7.2 NC NC Not Calculated NA Not Analyzed mg/l Milligrams per liter µg/l Microgram per liter UJ - Undetected; the associated quanƟtaƟon or reporƟng limit is considered to be an esƟmatedvalue. FD Field Duplicate U - Undetected J - Estimated positive result J- - Estimated positive result; may have a potential negative bias J+ - Estimated positive result; may have a potential positive bias Table 1: Field Duplicate Results Relative Percent Difference Relative Percent Difference Table 2: Groundwater Elevations Well ID Northing* Easting* Top of Casing Elevation (ft. amsl) Screen Interval (ft btoc) Depth to Water (ft btoc) Groundwater Elevation April 2024 (ft amsl) PWEA 880166.13 1876367.68 4224.01 9.01 - 19.01 4.67 4219.34 PWBA 879561.32 1876767.30 4226.17 13.57 - 23.57 5.89 4220.28 P2BA 878487.82 1877861.06 4226.65 10.65 - 20.65 NM NC P2FA 879835.28 1877326.05 4227.75 12.75 - 22.75 5.81 4221.94 P2CA 878475.35 1877299.83 4226.31 13.81 - 23.81 5.83 4220.48 P2GA 879046.76 1877716.67 4226.38 10.28 - 25.28 7.34 4219.04 P2HA 879156.93 1877388.40 4225.48 11.18 - 26.18 7.41 4218.07 P3FA 880821.03 1877274.47 4227.99 12.59 - 22.59 4.24 4223.75 P3GB 880630.22 1877703.28 4228.76 15.26 - 25.26 6.82 4221.94 P3CC 880037.8 1877335.8 4226.62 12.42 - 22.42 7.99 4218.63 P3DA 880444.8 1877307.5 4227.16 12.96 - 22.96 5.46 4221.70 P3BB 880012.76 1877910.67 4227.19 16.19 - 26.19 6.76 4220.43 PWS 879561.56 1876752.94 4226.78 36.88 - 46.88 3.87 4222.91 P2M 878506.32 1877811.83 4227.04 34.44 - 44.44 5.27 4221.77 P2EA 878905.6 1877290.20 4227.78 36.48 - 46.48 3.43 4224.35 P3EA 880374.8 1877306.90 4227.23 36.63 - 46.63 2.17 4225.06 P3O 880643.12 1877767.30 4228.73 38.73 - 48.73 4.55 4224.18 Note: Well P2BA was inaccessible due to recent construction activity * UTM Coordinates ft - feet amsl - above mean sea level NM Not Measured NC Not Calculated Table 2: Groundwater Elevations Shallow Wells Intermediate Wells Table 7: Summary of Final Water Quality Field Parameters Location Date Recorded Final Final Specific Final pH Final Turbidity Final Dissolved Final Oxidation Shallow Wells PWEA 4/23/2024 11.92 9.34 9.51 0.0 0.64 -296 PWBA 4/22/2024 16.55 6.73 9.74 0.5 malfunction -333 P2BA NS/NR NS/NR NS/NR NS/NR NS/NR NS/NR NS/NR P2FA 5/1/2024 13.90 12.60 9.03 4.9 2.79 -322 P2HA 4/25/2024 18.30 23.00 8.95 7.9 1.62 -307 P3DA 5/1/2024 15.01 2.49 8.79 45.0 3.38 -256 P3FA 4/29/2024 14.88 4.58 9.22 0.0 2.3 -200 P3GB 4/24/2024 15.7 2.94 8.42 0 14.28 -342 P3CC 5/1/2024 17.63 14.30 9.36 2.1 2.5 -340 P3BB 4/29/2024 16.32 8.40 7.95 12.6 5.49 -316 Intermediate Wells PWS 4/23/2024 15.22 0.57 7.66 5.5 6.09 -205 P2M 4/29/2024 15.76 0.62 7.83 0 3.64 -163 P3O 4/24/2024 14.74 0.79 7.93 1.5 34.6 -290 P2EA 4/25/2024 16.28 0.59 7.77 9.3 2.57 -216 P3EA 4/30/2024 18.66 0.58 7.84 170 1.22 -205 Surface Water CDPOC 4/22/2024 15.35 2.88 7.64 4.3 0.07 254 Note: Final Dissolved Oxygen readings were recorded, however, the membrane of the water quality parameter device is damaged and these readings should not be considered accurate. °C Degrees Celsius mS/cm Millisiemens per centimeter NTU Nephelometric Turbidity Unit NS/NR Not Sampled/Not Recorded Monitoring Well P2BA was inaccessible due to recent construction activity Table 3: Summary of Final Water Quality Field Parameters Table 3: Shallow Aquifer Total Metals Concentrations Well ID PWEA PWBA P2BA P2FA P2HA P3BB P3FA P3GB P3DA P3CC Sample Date 4/23/2024 4/22/2024 NA 5/1/2024 4/25/2024 4/29/2024 4/30/2024 4/24/2024 5/1/2024 5/1/2024 TDS mg/l @ 180C **7920 5,490 NA 11300 21100 6900 2630 1860 1710 14000 pH (Standard Units)<8.00 10.00 9.60 NA 9.3 9.3 8.4 9.3 8.7 8.9 9.9 Arsenic 64.0 470 98 NA 250 200 48 280 11 110 1000 Cadmium 6.20 1.7 J 0.41 NA 16 J 5.8 J 0.4 UJ 0.56 0.4 U 0.4 U 4.1 J Chromium 100.0 4 UJ 4 UJ NA 11 J+3.6 J+4 UJ 4.4 J+2.1 J+3.6 J+5.2 J- Chromium VI **NA NA NA NA NA NA NA NA NA NA Lead 15.0 2 UJ 2 UJ NA 2 UJ 2 UJ 2 UJ 4 J 2 UJ 2 UJ 2 UJ Manganese 440.0 11 J 11 J NA 27 J 33 J 120 J 70 J 21 J 31 J 32 J Molybdenum 182.0 6900 1500 NA 65000 22000 170 J+1400 320 650 26000 NA Not analyzed mg/l Milligrams per liter µg/l Micrograms per liter < Measurement is below detection limit red values exceed cleanup goals J - Estimated positive result UJ - Undetected; the associated quanƟtaƟon or reporƟng limit is considered to be an esƟmatedvalue. U - Undetected J+ - Estimated positive result; may have a potential positive bias J- - Estimated positive result; may have a potential negative bias Table 4: Shallow Aquifer Total Metal Concentrations Cleanup Goals μg/l Table 4: Comparison of ACL Monitoring Well Results to ACL Table 5: Comparison of ACL Monitoring Well Results to ACL Well ID P2FA P3FA PWEA P3CC P3DA Sample Date 5/1/2024 4/30/2024 4/23/2024 5/1/2024 5/1/2024 Dissolved Dissolved Dissolved Dissolved Dissolved Aluminum 4502.33 40 UJ 320 20 U 40 U 20 U Arsenic 9832.68 170 260 460 1000 110 Cadmium 139.08 14 J 0.46 1.6 J 6 J 0.4 U Chromium 26339.81 8.1 J-4 UJ 2 J-6 J-4 UJ Chromium VI 569.26 NA NA NA NA NA Copper 1564.50 12 J-6.5 J-6.1 J-20 UJ 4.3 J- Iron 25875.48 400 U 670 200 U 400 U 200 U Lead 666.71 2 U 1.9 J 2 U 2 UJ 2 U Mercury 0.62 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U Nickel 20667.94 10 3.4 13 5.8 1.5 J Selenium 258.75 22 J-7.9 J+9.8 J-15 J 7.3 J+ Silver 6.21 2 UJ 2 U 2 UJ 1 UJ 2 U Zinc 13914.05 10 U 6.6 10 U 10 U 5 U NA Not analyzed µg/l Micrograms per liter < Measurement is below detection limit red values exceed alternate concentration limits J - Estimated positive result U - Undetected J- - Estimated positive result; may have a potential negative bias UJ - Undetected; the associated quanƟtaƟon or reporƟng limit is considered to be an esƟmatedvalue. ACL Value (μg/L) Table 5: Surface Water Metal Concentrations Location ID CDPOC CDPOC Sample Date 4/22/2024 4/22/2024 Total Dissolved TDS mg/l @ 180C **2360 NA pH 8.13 - 11.25 8.1 NA Aluminum 180.75 34 20 U Arsenic 187.5 240 230 Cadmium 0.3125 0.4 U 0.4 U Chromium 92.5 2.3 J+3.7 J- Chromium VI 13.75 NA NA Copper 11.25 7.7 J 3.6 J- Iron 1250 110 J 200 U Lead 3.13 2 UJ 2 U Mercury 0.01 0.2 U 0.2 U Nickel 65 7.6 7.8 Selenium 5.75 50 U 5 U Silver 2 1 U 2 U Zinc 150 13 6.9 mg/l Milligrams per liter µg/l Micrograms per liter < Measurement is below detection limit ** No value established NA Not applicable J - Estimated positive result U - Undetected J+ - Estimated positive result; may have a potential positive bias UJ - Undetected; the associated quanƟtaƟon or reporƟng limit is considered to be an esƟmatedvalue. Table 6: Surface Water Metal Concentrations Performance Standards μg/l Table 6: Intermediate Aquifer Total Metal Concentrations Table 7: Intermediate Aquifer Total Metal Concentrations Well ID PWS P2M P3O P2EA P3EA Sample Date 4/23/2024 4/29/2024 4/24/2024 4/25/2024 4/30/2024 TDS mg/l @ 180C **380 516 544 420 452 pH (Standard Units)<8.00 7.7 8.1 8.1 7.8 8.2 Arsenic 64 37 85 32 36 32 Cadmium 6.2 0.4 U 2 0.4 U 0.4 U 1.1 Chromium 100 2 U 24 J+2 J+2.5 J+6 J+ Lead 15 2 UJ 45 J 2 UJ 2 UJ 12 J Manganese 440 40 J 820 J 34 J 55 J 120 J Molybdenum 182 10 U 10 U 20 J+10 U 10 U mg/l Milligrams per liter µg/l Micrograms per liter < Measurement is below detection limit red values exceed clean-up goal ** No value established J - Estimated positive result UJ - Undetected; the associated quanƟtaƟon or reporƟng limit is considered to be an esƟmatedvalue. U - Undetected J+ - Estimated positive result; may have a potential positive bias Cleanup Goals μg/l Appendix A: Water Quality Field Parameters Water Quality Field Parameters Location: 3D POC Weatherconditions: 6 l' tr Pa--l-y, Cla)y -- Time pH uonqusuvrty (mS/cm)Temperature ("F) a"C)Do (mg/l)ORP l urururty (Nru) LL'.3,6 7.6q 2.00 t5. ?.q o,o7 ?su rl.3 ease I of-\- Water Quality Field Parameters Proiect: Portland Cement Location: PVV34 Weather Conditions: InXo (- 5 Afl,ttts ' 8.1 *tllpt s @. l+'; tq $,1 talbr,6 tqu htd bo:r'dtu'r,h$m q tr:l\ rr" \ A!on9\e\t!N\- W*q\'09 q(J0f - ty\q\ftysJ5rNh e, lt it r r1n trgF $tqd,/t\t02F eage \ ot \ s$\h/k o il,tr r $\rXHr rtpu4o u uo\,h Time pH ugnuuctlvlty (mS/cm)Temperature ('F) ("C)Do (mg/l)ORP r urDrufly (Nru) tlfrlrffi, Ln: ln 1.;U ,9,l+. at l{ of - lvr,21,1 lr''- >'t 1,gr {4 l.+. D-q. f,1 -18?.,8.3 lo :9o l,Gl <9 t4- 7L t, o8 - lo$lrg lo ,4o 1.te;'B l4.r-S 5. o9 -lpl 4.L to jSD t.6g 58 I +.-le G.+d -1q-t 2,1 ll: oo t.<*l l4-az - -zDG /.o I : l0 -).<",. s1 i 4-RA 4. z4 -lq1 L,1 tl "?,1.<4 <<r iC. a4 (-z-9.- Iqg 4.2 ll: ao l, bb r-l t(. l<1,b{-ztt4 4.1,,1n 1.CC <1 t< ?:L (-6q -?n{6.9 I :51' Water Quality Field Parameters Project: Portland Cement Location: PW S o"t r1l4-'Y weatherconditions, fncf f ..uftg ft".rZf+ ro..54 gfttw ^7qdl'w s"-p$d el4:W h,qb Wllrv"s tth lW 0o- wrr(r $^A(^^di*% o t(b1 n" u*Oim1. eage \ ot I Water Quality Field Parameters ^\ Proiect: Poftand Cement Location: eU{€A oarc: 4lnh4 weatherGonditions, 40 to4" wrub arqntlg: - ,"".1ew - bSXalr scwtpU4 Temperature ("F) ('C) oflBM dqltrus +D ?uW u5lL* \ *1t ',qrr , N\tw odor Water Qualig Field Parameters 5641'sus I B. S 7 3 otlog\'\ bo P'*5e ott Iu\rl,rili\ SJ, o\r'-BE Y 1|?\ $-- \ t)^^1. 0 a\^^0 Ah, \-'Lo6.J) ilVff\f\$ Uf,nn.louqeonn nhr\n Temperature ("F) ("C) G'.L> ttow\v, Water Quality Field Parameters Proiect: Portland Cement Location: o^t"rffi weather Gonditions: - 5 q^{[/t/6 e trn,i1 satrr.tgto/' @ lt'1b EWs g' 't( Sa"ttcr'r* t., P'te h - o [u" {o crnourfrr\} tr,t eage \ or \ 6v\i.^r Sirn.l{{ r s\tpl4 yrlnw oW Water Quality Field Parameters -Total t pU., Project: Portland Cement Location: PZft A/ Oatet +tzS I z.o2A WeatherGonditions' 5,1, U1OW|, , [0,%B gdi,trt\s 4- f1"?& 5 q allru-s e'[l'11 t ,6.attuitl tn{*t t,,ttr\fW $ I z:o+ Temperature ('F) ('C) otz,s',r,lr1\ v\^td.roht u\l b.\ .tn,0 p ru\h'r oobv, ofrY r'o\ur ^Proiect: Portland Cement Water Quality Field Parameters Location: Y LVA Sqalnt to qd.lln^s idt rl gnun p\d C \s'$ RaseI ofl. t&t\ , Nhcot \r Vd,rrvurt'' u,,Illd "f ^^hrl,) oate: *lz; lZ+ Weatherconditions, t *,u l,qw f-A;^-' - Time pH uonoucuvtty (mS/cm)Temperature ("F) ('C)DO (mg/l)ORP r uroKt]Iy (Nru) l4|'Lt'l '1 -4 . l",)-\€ ,'l t-L.11 - lar b,o tu"'a)'l "$o ,lo?-rs ,q I 1. too -1D ?-"Jo..\ I a:4n l9z nLl ts. rz 3.lr -zn 25.1 l?fr I A1-.Gt lS r^1 a.ja -ztB nfi*z l{ -t'tr -l $n ,(lo l9- qz+44a - -L?A tt, 3ltt ln l.?'n .k0 IC.SI q.d6 - 7-7/O I s,6 Q: )lr -1,1fl ^ lnfl l<.14 l,oA -zl-1 t4a l/s','hi r .{r .(o 0 ls, rq t^ - o^[-L L)l7.L l4'.40 1-4t . h0 lt,bb G. $0 -LLL L2,L t4".q -7.r1 I . (^O l9.qdo 1-lt^4)-2 q4 ls'. m tAn g \\ "q?\.')/+-1.1L t.) lq ro l.*rq .so Ito.f)1 5.r o -1),A \.r t5'. N l;1q "fl rL.\\o laq -7lB B3 t5.?fr 1.'11(-.CQ th. rA t,91 - 2lh q,3 lr'40 l$'2! Xa,ttarrs '1" $ry su [[rr -trtd{ t oissotw{ Water Quality Fietd Param"t"rrlDS t?h\ Project: Portland Cement r-ocatton: t ttA oate:71't4lT\ WeatherGonditions, M -huttuuq-hailrr@ " ,,lh,'- W4{cf-nsq d*& e oq" 1+ 2 ,€ qdlht P"{rt 5.{^^\dLd ar, *lZolU 0, \+:su e'\. \p Rq grit"oYrs htd E t)t'n fwu b\i\Y4tt- "\'hT rlnf t hl,& Su\(,tr oc[or, 3nU AV:r,srd.innaf \,'t\N{^ &^^^fu/ *t $\'fN\ $rtL*) tP\oV Page I of Temperature ('F) ("C) _frta) water Quality Fietd Parameters @nV1, Project: Portland Cement o^t",1lt\lttu tocation: YlW Weather Gonditions: k lo 5'rdlln^rura 1\'4\ '%dl'?/t€3 G,M to ul*,I rdilt f ur \,\ g V'hrp Whidrl^d ease 1 ot t 6u\(..,Y O111T, fa,rr{f W- 6W$l** <l'unyv6a* Temperature ("F) ('C) Proiect: Portland Cement fdo{ .69tp\'\ Water Quality Field Parameters Location: YT lV\ -t t,CID (il:\d{ Stlrr., 5{,li\^o^Jt llVeatherconditions: td1, tnl4y dnnt{d, ease \ or l. 0 t+-zs u.{^/t t' roofhn. t( wr"t\ r fll {t o( r'(Lttrnq/t crllJJ,fi/n eols'is l.S yalltr,,r Sqqutl e lE'qr +r\pt f^Y " l9,qt 5all'ovts Ml*t rto{i,,3 e HSl h\,rrrK? Mtbtq h") $owt ilr sra,irrnut" {Vttr.6 u > rrr.in,rts t0brr6 {-,rttS Wrt^ ru\ s\-? odAr, \iylrt ,*ta Temperature ('F) ('C) on5\vvu{d^ w"ik ,ab'r( Water Quality Field Parameters Proiect: Portland Cement o"t", 1\rq |.?4 weatherGonditions: F\rnrt cqu\Ae, CI+ Q 15 'ts oA4 gNd( zo\ gvc .loufr'n"-Lor I W{tt av',l .,t a$ hrr,h bltqr^ f\Sut4 qldl- trhilt v{I [5\(qvc Time pH rrtJl luUU[lVll,y (mS/cm)Temperature ('F) ('C)Do (mg/l)ORP l ur ulurty (Nru) Water Quality Field Parameters lb,hu Wnn Project: Portland Cement Weather Conditions: .3#f, lo trta{ ?s ^lwPage I ot I+?fd.l f*f W\M/vt: [r, .11 [dllor/rr (r Wt tu g^{rht ,*,nt &nn it'sftb \Mrl 5\\{W ,'\ftt',. tilrrvl d\IN( l7'r,dllfut "l+,1 . J**tttd Q 1z;ee ep'0d h rvnnnrs S^ttU. SI.hJ.^ N1, \'rilkf 0,b0\t0 \^,q[ Tohf r orsstN[c'( 1b6rs\ Water Quality Field Parameters Proiect: Portlarld Cement Location: o",", ffi weather Gonditions: SX,llne s^0tfu4 @ rz'IS Page _ of- Time pH uun(Iuguvtty (mS/cm)Temperature ('F) ("C)Do (mg/l)ORP r urorqfiy (Nru) . (I0 \.1t-).1<tj .)o 9.\3 -Ll-l 5t .9 l{:lh I .4rr )^ .)1 la.+q e.t1 -TL It0 ll'- 1A S .4-r L.+q lz.;{4. s,q - ?al \ xr"lt.n Q€t 1-,46 lz.-rg ZtB -Lls tM- Ir:4rr Qt.uo >,41 14.t7 v-83 - ZZ+1 hq,t0 q^ .uB z ,*s tGrrr 1ts -2K lr2.l l'u.n b.11 2,\1 l1'ea ?,?S - LU1 I t".4 l'?-" t h g.-t 1 L.Fq Is.o I 3.b8 -?-€C 4{o +"kt gW r,o\unnr,: t.$i $iltl{1rw :lvuur 6.r1$ry ol0r \-rtd $^rrrtrPtt'orn tf,Vf Iatu\' tisntn,.J water Quatity Fietd Parameters @ Project: Portland Cement Location: 91f,4 rnditions: 5qtUdj/ul Ou ol: bo , L.{ 1dil,tA4 t s adill,lt ttt^f rru,qrrl d lo:09 htut $,/1, $tnA . -7.1* Xaruus .trnbidih flr"{}x garruhnroS k t1^^r^ q ona 3 be{"r$ ffi',% easeI otl. Date: Qltl* WeatherGonditions: Time pH uonsucuvtly (mS/cm)Temperature ('F) ('C)Do (mg/l)ORP r ururutty (Nru) t9 i40 1.rg I,'Q \z,qq 4.{g -?-0b q.1 0t'. sb 1.zS -1.{,t"t'1. 1.t 7,bb zAC 1.L 0q10 Q,trU [0.*l'l.lq 1-, A)-7lz q.8 0{: to Q.rz It.u la. 1*>. ,i',-a?,4.2- 01"1.0 Q.l:-lL,7-ll.'l t f,*<- 7L>\.(,- 0li ?o U.on lo-,4 t q.1C ).qq - i?n 3.r 0t:q0 Q.o4 l:-,{la.b1 1. rL -3lt 4.to 0{rs0 9.ot \z.b tn.9a L.b1 -Z)?l,q [o'.so S.oc \e-. G It.{.rr z,'11 -Tt;?-41 ehq s tl{4/ ,[01n tpt"r 0w Tot'al oisrotd water Quatity Fietd Parameters -Ia6tSH Project: Portland Cement Location: D.t"'W weather conditions: lx r. odllrt^, b.tq'as S wetd Q \Atso Page _ of %/d^{- Eut(r oloY b*rW ${\}'uu't {ttot W voft/l& " V'o1 gdtdry -rDFo. 4.?\ t[t' Appendix B: Analytical Results The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24D1691 Project: Portland Cement 4/25/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/22/24 15:01 @ 10.9 °C 4/25/2024 Portland Cement Sample ID: CDPOC Lab ID: 24D1691-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/22/24 11:36 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/23/24 10:594/23/24 9:470.1 SM 4500 H-B8.1pH mg/L 4/23/244/23/2420SM 2540 C2360Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1691 www.ChemtechFord.com Page 2 of 6Page 2 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/22/24 15:01 @ 10.9 °C 4/25/2024 Portland Cement Sample ID: P3AA Lab ID: 24D1691-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/22/24 13:00 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/23/24 11:014/23/24 9:470.1 SM 4500 H-B8.1pH mg/L 4/23/244/23/2420SM 2540 C2320Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1691 www.ChemtechFord.com Page 3 of 6Page 3 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/22/24 15:01 @ 10.9 °C 4/25/2024 Portland Cement Sample ID: PWBA Lab ID: 24D1691-03Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/22/24 14:24 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/23/24 11:024/23/24 9:470.1 SM 4500 H-B9.6pH mg/L 4/23/244/23/2420SM 2540 C5490Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1691 www.ChemtechFord.com Page 4 of 6Page 4 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/22/24 15:01 @ 10.9 °C 4/25/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24D1691 www.ChemtechFord.com Page 5 of 6Page 5 of 6 Page 6 of 6 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24D1834 Project: Portland Cement 5/2/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/23/24 15:03 @ 10.4 °C 5/2/2024 Portland Cement Sample ID: PWS Lab ID: 24D1834-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/23/24 11:47 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/24/24 11:174/24/24 9:260.1 SM 4500 H-B7.7pH mg/L 4/24/244/24/2420SM 2540 C380Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1834 www.ChemtechFord.com Page 2 of 6Page 2 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/23/24 15:03 @ 10.4 °C 5/2/2024 Portland Cement Sample ID: PWEA Lab ID: 24D1834-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/23/24 14:10 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/24/24 11:194/24/24 9:260.1 SM 4500 H-B10.0pH mg/L 4/24/244/24/24100SM 2540 C7920Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1834 www.ChemtechFord.com Page 3 of 6Page 3 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/23/24 15:03 @ 10.4 °C 5/2/2024 Portland Cement Sample ID: PWAA Lab ID: 24D1834-03Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/23/24 14:30 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/24/24 11:204/24/24 9:260.1 SM 4500 H-B10.0pH mg/L 4/24/244/24/24100SM 2540 C8040Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1834 www.ChemtechFord.com Page 4 of 6Page 4 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/23/24 15:03 @ 10.4 °C 5/2/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24D1834 www.ChemtechFord.com Page 5 of 6Page 5 of 6 Page 6 of 6 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24D1961 Project: Portland Cement 5/3/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/24/24 16:20 @ 4.7 °C 5/3/2024 Portland Cement Sample ID: P30 Lab ID: 24D1961-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/24/24 13:30 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/25/24 15:214/25/24 15:010.1 SM 4500 H-B8.1pH mg/L 4/25/244/25/2420SM 2540 C544Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1961 www.ChemtechFord.com Page 2 of 5Page 2 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/24/24 16:20 @ 4.7 °C 5/3/2024 Portland Cement Sample ID: P3GB Lab ID: 24D1961-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/24/24 11:46 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/25/24 15:194/25/24 15:010.1 SM 4500 H-B8.7pH mg/L 4/26/244/26/2420SM 2540 C1860Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D1961 www.ChemtechFord.com Page 3 of 5Page 3 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/24/24 16:20 @ 4.7 °C 5/3/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24D1961 www.ChemtechFord.com Page 4 of 5Page 4 of 5 Page 5 of 5 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24D2089 Project: Portland Cement 5/3/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/25/24 16:57 @ 10.0 °C 5/3/2024 Portland Cement Sample ID: P2HA Lab ID: 24D2089-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/25/24 12:05 Preparation Date/Time Sampled By: Client Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/26/24 13:254/26/24 12:510.1 SM 4500 H-B9.3pH mg/L 4/26/244/26/24500SM 2540 C21100Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D2089 www.ChemtechFord.com Page 2 of 5Page 2 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/25/24 16:57 @ 10.0 °C 5/3/2024 Portland Cement Sample ID: P2EA Lab ID: 24D2089-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/25/24 15:40 Preparation Date/Time Sampled By: Client Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/26/24 13:264/26/24 12:510.1 SM 4500 H-B7.8pH mg/L 4/26/244/26/2420SM 2540 C420Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D2089 www.ChemtechFord.com Page 3 of 5Page 3 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 2440000021 4/25/24 16:57 @ 10.0 °C 5/3/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24D2089 www.ChemtechFord.com Page 4 of 5Page 4 of 5 Page 5 of 5 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24D2225 Project: Portland Cement 5/3/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 4/29/24 16:48 @ 10.9 °C 5/3/2024 Portland Cement Sample ID: P3BB Lab ID: 24D2225-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/29/24 12:53 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/30/24 10:464/30/24 9:240.1 SM 4500 H-B8.4pH mg/L 5/1/245/1/2420SM 2540 C6900Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D2225 www.ChemtechFord.com Page 2 of 5Page 2 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 4/29/24 16:48 @ 10.9 °C 5/3/2024 Portland Cement Sample ID: P2M Lab ID: 24D2225-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/29/24 15:35 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH4/30/24 10:484/30/24 9:240.1 SM 4500 H-B8.1pH mg/L 5/1/245/1/2420SM 2540 C516Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D2225 www.ChemtechFord.com Page 3 of 5Page 3 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 4/29/24 16:48 @ 10.9 °C 5/3/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24D2225 www.ChemtechFord.com Page 4 of 5Page 4 of 5 Page 5 of 5 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24D2358 Project: Portland Cement 5/3/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 4/30/24 16:01 @ 13.6 °C 5/3/2024 Portland Cement Sample ID: P3EA Lab ID: 24D2358-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/30/24 13:55 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH5/1/24 10:305/1/24 9:380.1 SM 4500 H-B8.2pH mg/L 5/1/245/1/2420SM 2540 C452Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D2358 www.ChemtechFord.com Page 2 of 5Page 2 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 4/30/24 16:01 @ 13.6 °C 5/3/2024 Portland Cement Sample ID: P3FA Lab ID: 24D2358-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 4/30/24 14:56 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH5/1/24 10:315/1/24 9:380.1 SM 4500 H-B9.3pH mg/L 5/1/245/1/2420SM 2540 C2630Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24D2358 www.ChemtechFord.com Page 3 of 5Page 3 of 5 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 4/30/24 16:01 @ 13.6 °C 5/3/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24D2358 www.ChemtechFord.com Page 4 of 5Page 4 of 5 Page 5 of 5 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Utah Department of Environmental Quality Attn: Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 Work Order: 24E0113 Project: Portland Cement 5/6/2024 Approved By: Andrew Royer, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 5/1/24 15:41 @ 6.1 °C 5/6/2024 Portland Cement Sample ID: P2FA Lab ID: 24E0113-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 5/1/24 10:05 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH5/2/24 14:165/2/24 12:420.1 SM 4500 H-B9.3pH mg/L 5/2/245/2/24500SM 2540 C11300Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24E0113 www.ChemtechFord.com Page 2 of 6Page 2 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 5/1/24 15:41 @ 6.1 °C 5/6/2024 Portland Cement Sample ID: P3DA Lab ID: 24E0113-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 5/1/24 12:15 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH5/2/24 14:175/2/24 12:420.1 SM 4500 H-B8.9pH mg/L 5/2/245/2/2450SM 2540 C1710Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24E0113 www.ChemtechFord.com Page 3 of 6Page 3 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 5/1/24 15:41 @ 6.1 °C 5/6/2024 Portland Cement Sample ID: P3CC Lab ID: 24E0113-03Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 5/1/24 14:50 Preparation Date/Time Sampled By: Kelsey Robinson Minimum Reporting Limit MethodResult Inorganic pH Units SPH5/2/24 14:185/2/24 12:420.1 SM 4500 H-B9.9pH mg/L 5/2/245/2/24500SM 2540 C14000Total Dissolved Solids (TDS) Project Name: Portland Cement CtF WO#: 24E0113 www.ChemtechFord.com Page 4 of 6Page 4 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Utah Department of Environmental Quality Kelsey Robinson 195 North 1950 West Salt Lake City, UT 84116 PO#: Receipt: Date Reported: Project Name: 240000021 5/1/24 15:41 @ 6.1 °C 5/6/2024 Portland Cement Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions SPH = Sample submitted past method specified holding time. Project Name: Portland Cement CtF WO#: 24E0113 www.ChemtechFord.com Page 5 of 6Page 5 of 6 Page 6 of 6 Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 1 Thu, 6 Jun 2024 16:52:00 Sample Number: LCS247 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Spike 38 ug/L 38 1.0 YES S3VE Antimony Spike 3.9 ug/L 3.9 1.0 YES S3VE Arsenic Spike 2.2 ug/L 2.2 1.0 YES S3VE Barium Spike 19 ug/L 19 1.0 YES S3VE Beryllium Spike 2.0 ug/L 2.0 1.0 YES S3VE Calcium Spike 1000 ug/L 1000 1.0 YES S3VE Cobalt Spike 2.0 ug/L 2.0 1.0 YES S3VE Copper Spike 3.7 ug/L 3.7 1.0 YES S3VE Iron Spike 410 ug/L 410 1.0 YES S3VE Lead Spike 2.2 ug/L 2.2 1.0 YES S3VE Magnesium Spike 1000 ug/L 1000 1.0 YES S3VE Manganese Spike 2.1 ug/L 2.1 1.0 YES S3VE Potassium Spike 1000 ug/L 1000 1.0 YES S3VE Selenium Spike 9.0 ug/L 9.0 1.0 YES S3VE Silver Spike 2.1 J+ug/L 2.1 1.0 YES S3VE Sodium Spike 930 J-ug/L 930 1.0 YES S3VE Thallium Spike 2.0 ug/L 2.0 1.0 YES S3VE Vanadium Spike 10 ug/L 10 1.0 YES S3VE Zinc Spike 10 ug/L 10 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 2 Thu, 6 Jun 2024 16:52:00 Sample Number: LCS249 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Cadmium Spike 0.43 ug/L 0.43 1.0 YES S3VE Molybdenum Spike 19 ug/L 19 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 3 Thu, 6 Jun 2024 16:52:00 Sample Number: LCS250 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Spike 42 ug/L 42 1.0 YES S3VE Antimony Spike 3.8 ug/L 3.8 1.0 YES S3VE Arsenic Spike 2.1 ug/L 2.1 1.0 YES S3VE Barium Spike 19 ug/L 19 1.0 YES S3VE Beryllium Spike 2.0 ug/L 2.0 1.0 YES S3VE Calcium Spike 990 ug/L 990 1.0 YES S3VE Cobalt Spike 2.0 ug/L 2.0 1.0 YES S3VE Copper Spike 4.0 ug/L 4.0 1.0 YES S3VE Iron Spike 410 ug/L 410 1.0 YES S3VE Lead Spike 2.1 ug/L 2.1 1.0 YES S3VE Magnesium Spike 1000 ug/L 1000 1.0 YES S3VE Manganese Spike 2.1 ug/L 2.1 1.0 YES S3VE Nickel Spike 2.1 ug/L 2.1 1.0 YES S3VE Potassium Spike 1000 ug/L 1000 1.0 YES S3VE Selenium Spike 9.7 ug/L 9.7 1.0 YES S3VE Silver Spike 2.0 J+ug/L 2.0 1.0 YES S3VE Sodium Spike 1000 ug/L 1000 1.0 YES S3VE Thallium Spike 2.0 ug/L 2.0 1.0 YES S3VE Vanadium Spike 9.9 ug/L 9.9 1.0 YES S3VE Zinc Spike 11 ug/L 11 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 4 Thu, 6 Jun 2024 16:52:00 Sample Number: LCS251 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Cadmium Spike 0.43 ug/L 0.43 1.0 YES S3VE Molybdenum Spike 20 ug/L 20 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 5 Thu, 6 Jun 2024 16:52:00 Sample Number: LCS252 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2.0 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Chromium Spike 3.8 J-ug/L 3.8 1.0 YES S3VE Nickel Spike 2.0 ug/L 2.0 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 6 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AH4 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: CDPOC-D pH: 2 Sample Date: 04/22/2024 Sample Time: 11:36:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 7 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AH4 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: CDPOC-D pH: 2 Sample Date: 04/22/2024 Sample Time: 11:36:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 230 ug/L 230 1.0 YES S3VE Barium Target 82 ug/L 82 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 120000 ug/L 120000 D 100.0 YES S3VE Chromium Target 3.7 J-ug/L 3.7 DJ 2.0 YES S3VE Cobalt Target 0.65 J ug/L 0.65 J 1.0 YES S3VE Copper Target 3.6 J-ug/L 3.6 *DJ 2.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 88000 ug/L 88000 D 100.0 YES S3VE Manganese Target 68 ug/L 68 1.0 YES S3VE Nickel Target 7.8 ug/L 7.8 D 2.0 YES S3VE Potassium Target 72000 ug/L 72000 D 10.0 YES S3VE Selenium Target 5.0 U ug/L 4.7 J 1.0 YES S3VE Silver Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Sodium Target 610000 J-ug/L 610000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 10 ug/L 10 1.0 YES S3VE Zinc Target 6.9 ug/L 6.9 1.0 YES S3VE Molybdenum Target 340 ug/L 340 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 8 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AH7 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: PWEA-D pH: 2 Sample Date: 04/23/2024 Sample Time: 14:10:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 9 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AH7 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: PWEA-D pH: 2 Sample Date: 04/23/2024 Sample Time: 14:10:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 460 ug/L 460 D 10.0 YES S3VE Barium Target 51 ug/L 51 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 1.6 J ug/L 1.6 D 2.0 YES S3VE Calcium Target 2000 ug/L 2000 1.0 YES S3VE Chromium Target 2.0 J-ug/L 2.0 DJ 2.0 YES S3VE Cobalt Target 0.51 J ug/L 0.51 J 1.0 YES S3VE Copper Target 6.1 J-ug/L 6.1 *D 2.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 1500 ug/L 1500 1.0 YES S3VE Manganese Target 9.3 ug/L 9.3 1.0 YES S3VE Nickel Target 13 ug/L 13 D 2.0 YES S3VE Potassium Target 1100000 ug/L 1100000 D 1000.0 YES S3VE Selenium Target 9.8 J-ug/L 9.8 DJ 2.0 YES S3VE Silver Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Sodium Target 2300000 J-ug/L 2300000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 14 ug/L 14 D 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 7100 ug/L 7100 D 100.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 10 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AH9 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: PWAA-D pH: 2 Sample Date: 04/23/2024 Sample Time: 16:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 11 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AH9 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: PWAA-D pH: 2 Sample Date: 04/23/2024 Sample Time: 16:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 450 ug/L 450 D 10.0 YES S3VE Barium Target 52 ug/L 52 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 1.8 J ug/L 1.8 D 2.0 YES S3VE Calcium Target 2000 ug/L 2000 1.0 YES S3VE Chromium Target 2.1 J-ug/L 2.1 DJ 2.0 YES S3VE Cobalt Target 0.54 J ug/L 0.54 J 1.0 YES S3VE Copper Target 8.3 J-ug/L 8.3 *D 2.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 1400 ug/L 1400 1.0 YES S3VE Manganese Target 11 ug/L 11 1.0 YES S3VE Nickel Target 13 ug/L 13 D 2.0 YES S3VE Potassium Target 1100000 ug/L 1100000 D 1000.0 YES S3VE Selenium Target 9.4 J-ug/L 9.4 DJ 2.0 YES S3VE Silver Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Sodium Target 2200000 J-ug/L 2200000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 14 ug/L 14 D 2.0 YES S3VE Zinc Target 3.9 J ug/L 3.9 DJ 2.0 YES S3VE Molybdenum Target 6900 ug/L 6900 D 100.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 12 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AJ6 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: P2FA-D pH: 2 Sample Date: 05/01/2024 Sample Time: 10:05:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 13 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AJ6 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P2FA-D pH: 2 Sample Date: 05/01/2024 Sample Time: 10:05:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 40 UJ ug/L 40 DU 2.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 170 ug/L 170 D 2.0 YES S3VE Barium Target 55 ug/L 55 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 14 J ug/L 14 D 2.0 YES S3VE Calcium Target 4300 J-ug/L 4300 D 2.0 YES S3VE Chromium Target 8.1 J-ug/L 8.1 D 2.0 YES S3VE Cobalt Target 1.4 J ug/L 1.4 DJ 2.0 YES S3VE Copper Target 12 J-ug/L 12 *D 2.0 YES S3VE Iron Target 400 U ug/L 400 DU 2.0 YES S3VE Lead Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 18000 ug/L 18000 D 10.0 YES S3VE Manganese Target 24 ug/L 24 D 2.0 YES S3VE Nickel Target 10 ug/L 10 D 2.0 YES S3VE Potassium Target 820000 ug/L 820000 D 1000.0 YES S3VE Selenium Target 22 J-ug/L 22 D 2.0 YES S3VE Silver Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Sodium Target 3800000 J-ug/L 3800000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 43 ug/L 43 D 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 62000 ug/L 62000 D 1000.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 14 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AJ8 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: P3CC-D pH: 2 Sample Date: 05/01/2024 Sample Time: 14:50:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 15 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AJ8 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3CC-D pH: 2 Sample Date: 05/01/2024 Sample Time: 14:50:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 40 U ug/L 40 DU 2.0 YES S3VE Antimony Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 1000 ug/L 1000 D 10.0 YES S3VE Barium Target 330 ug/L 330 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 6.0 J ug/L 6.0 D 2.0 YES S3VE Calcium Target 12000 ug/L 12000 D 10.0 YES S3VE Chromium Target 6.0 J-ug/L 6.0 D 2.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 UJ ug/L 20 *DU 10.0 YES S3VE Iron Target 400 U ug/L 400 DU 2.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 21000 ug/L 21000 D 10.0 YES S3VE Manganese Target 31 ug/L 31 D 2.0 YES S3VE Nickel Target 5.8 ug/L 5.8 D 2.0 YES S3VE Potassium Target 1800000 ug/L 1800000 D 1000.0 YES S3VE Selenium Target 15 J ug/L 15 DJ 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 4500000 ug/L 4500000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 32 ug/L 32 D 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 30000 ug/L 30000 D 1000.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 16 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK1 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: P3DA-D pH: 2 Sample Date: 05/01/2024 Sample Time: 12:15:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 17 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK1 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3DA-D pH: 2 Sample Date: 05/01/2024 Sample Time: 12:15:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 110 ug/L 110 1.0 YES S3VE Barium Target 140 ug/L 140 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 9600 ug/L 9600 D 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Cobalt Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Copper Target 4.3 J-ug/L 4.3 *D 2.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 11000 ug/L 11000 D 10.0 YES S3VE Manganese Target 17 ug/L 17 1.0 YES S3VE Nickel Target 1.5 J ug/L 1.5 DJ 2.0 YES S3VE Potassium Target 110000 ug/L 110000 D 100.0 YES S3VE Selenium Target 7.3 J+ug/L 7.3 1.0 YES S3VE Silver Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Sodium Target 580000 J-ug/L 580000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 3.9 J ug/L 3.9 J 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 640 ug/L 640 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 18 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: P3FA-D pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 19 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3FA-D pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 320 ug/L 320 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 260 ug/L 260 D 10.0 YES S3VE Barium Target 100 ug/L 100 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.46 ug/L 0.46 D 2.0 YES S3VE Calcium Target 14000 ug/L 14000 D 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Cobalt Target 0.40 J ug/L 0.40 J 1.0 YES S3VE Copper Target 6.5 J-ug/L 6.5 *D 2.0 YES S3VE Iron Target 670 ug/L 670 1.0 YES S3VE Lead Target 1.9 J ug/L 1.9 DJ 2.0 YES S3VE Magnesium Target 13000 ug/L 13000 D 10.0 YES S3VE Manganese Target 53 ug/L 53 1.0 YES S3VE Nickel Target 3.4 ug/L 3.4 D 2.0 YES S3VE Potassium Target 600000 ug/L 600000 D 100.0 YES S3VE Selenium Target 7.9 J+ug/L 7.9 1.0 YES S3VE Silver Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Sodium Target 550000 J-ug/L 550000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 19 ug/L 19 1.0 YES S3VE Zinc Target 6.6 ug/L 6.6 1.0 YES S3VE Molybdenum Target 1300 ug/L 1300 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 20 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6A Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Copper Spike 14 ug/L 14 *D 2.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 21 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6D Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 22 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6D Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 320 ug/L 320 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 260 ug/L 260 D 10.0 YES S3VE Barium Target 99 ug/L 99 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.42 ug/L 0.42 D 2.0 YES S3VE Calcium Target 14000 ug/L 14000 D 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Cobalt Target 0.39 J ug/L 0.39 J 1.0 YES S3VE Copper Target 5.4 ug/L 5.4 *D 2.0 YES S3VE Iron Target 660 ug/L 660 1.0 YES S3VE Lead Target 1.9 J ug/L 1.9 DJ 2.0 YES S3VE Magnesium Target 13000 ug/L 13000 D 10.0 YES S3VE Manganese Target 53 ug/L 53 1.0 YES S3VE Nickel Target 3.5 ug/L 3.5 D 2.0 YES S3VE Potassium Target 590000 ug/L 590000 D 100.0 YES S3VE Selenium Target 9.1 J+ug/L 9.1 1.0 YES S3VE Silver Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Sodium Target 540000 J-ug/L 540000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 19 ug/L 19 1.0 YES S3VE Zinc Target 6.8 ug/L 6.8 1.0 YES S3VE Molybdenum Target 1300 ug/L 1300 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 23 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6L Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 320 ug/L 320 5.0 YES S3VE Antimony Target 100 U ug/L 100 U 50.0 YES S3VE Arsenic Target 280 ug/L 280 50.0 YES S3VE Barium Target 98 ug/L 98 5.0 YES S3VE Beryllium Target 10 U ug/L 10 U 10.0 YES S3VE Cadmium Target 2.0 U ug/L 2.0 U 10.0 YES S3VE Calcium Target 11000 J ug/L 11000 J 50.0 YES S3VE Chromium Target 20 UJ ug/L 20 U 10.0 YES S3VE Cobalt Target 5.0 U ug/L 5.0 U 5.0 YES S3VE Copper Target 12 J ug/L 12 *J 10.0 YES S3VE Iron Target 650 J ug/L 650 J 5.0 YES S3VE Lead Target 10 U ug/L 10 U 10.0 YES S3VE Magnesium Target 15000 J ug/L 15000 J 50.0 YES S3VE Manganese Target 60 ug/L 60 5.0 YES S3VE Nickel Target 4.3 J ug/L 4.3 J 10.0 YES S3VE Potassium Target 640000 ug/L 640000 500.0 YES S3VE Selenium Target 42 J+ug/L 42 5.0 YES S3VE Silver Target 10 U ug/L 10 U 10.0 YES S3VE Sodium Target 520000 J-ug/L 520000 500.0 YES S3VE Thallium Target 10 U ug/L 10 U 10.0 YES S3VE Vanadium Target 18 J ug/L 18 J 5.0 YES S3VE Zinc Target 25 U ug/L 25 U 5.0 YES S3VE Molybdenum Target 1200 ug/L 1200 50.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 24 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6S Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Spike 0.80 ug/L 0.80 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 25 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK6S Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Antimony Spike 91 ug/L 91 D 10.0 YES S3VE Arsenic Spike 310 ug/L 310 D 10.0 YES S3VE Barium Spike 1900 ug/L 1900 D 10.0 YES S3VE Beryllium Spike 44 ug/L 44 D 2.0 YES S3VE Cadmium Spike 47 ug/L 47 D 2.0 YES S3VE Chromium Spike 210 J-ug/L 210 D 2.0 YES S3VE Cobalt Spike 460 ug/L 460 D 10.0 YES S3VE Copper Spike 180 ug/L 180 *D 2.0 YES S3VE Lead Spike 17 ug/L 17 D 2.0 YES S3VE Manganese Spike 520 ug/L 520 D 10.0 YES S3VE Nickel Spike 500 ug/L 500 D 10.0 YES S3VE Selenium Spike 86 ug/L 86 D 10.0 YES S3VE Silver Spike 44 J+ug/L 44 D 2.0 YES S3VE Thallium Spike 44 ug/L 44 D 2.0 YES S3VE Vanadium Spike 530 ug/L 530 D 10.0 YES S3VE Zinc Spike 490 ug/L 490 D 10.0 YES S3VE Molybdenum Spike 1400 ug/L 1400 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 26 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK8 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: P3AA-D pH: 2 Sample Date: 04/22/2024 Sample Time: 13:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 27 Thu, 6 Jun 2024 16:52:00 Sample Number: MH0AK8 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3AA-D pH: 2 Sample Date: 04/22/2024 Sample Time: 13:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 20 U ug/L 20 DU 10.0 YES S3VE Arsenic Target 240 ug/L 240 1.0 YES S3VE Barium Target 80 ug/L 80 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 120000 ug/L 120000 D 100.0 YES S3VE Chromium Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Cobalt Target 0.65 J ug/L 0.65 J 1.0 YES S3VE Copper Target 4.9 J-ug/L 4.9 *D 2.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Magnesium Target 89000 ug/L 89000 D 100.0 YES S3VE Manganese Target 69 ug/L 69 1.0 YES S3VE Nickel Target 7.7 ug/L 7.7 D 2.0 YES S3VE Potassium Target 70000 ug/L 70000 D 10.0 YES S3VE Selenium Target 11 J+ug/L 11 1.0 YES S3VE Silver Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Sodium Target 610000 J-ug/L 610000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 10 ug/L 10 1.0 YES S3VE Zinc Target 7.2 ug/L 7.2 1.0 YES S3VE Molybdenum Target 340 ug/L 340 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 28 Thu, 6 Jun 2024 16:52:00 Sample Number: PBW285 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 29 Thu, 6 Jun 2024 16:52:00 Sample Number: PBW291 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Arsenic Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Barium Target 10 U ug/L 10 U 1.0 YES S3VE Beryllium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Cadmium Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Calcium Target 500 U ug/L 500 U 1.0 YES S3VE Cobalt Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Copper Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Magnesium Target 500 U ug/L 500 U 1.0 YES S3VE Manganese Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Potassium Target 500 U ug/L 500 U 1.0 YES S3VE Selenium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target -160 J-ug/L -160 J 1.0 YES S3VE Thallium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 10 U ug/L 10 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 30 Thu, 6 Jun 2024 16:52:00 Sample Number: PBW292 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Arsenic Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Barium Target 10 U ug/L 10 U 1.0 YES S3VE Beryllium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Cadmium Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Calcium Target 500 U ug/L 500 U 1.0 YES S3VE Cobalt Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Copper Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Magnesium Target 500 U ug/L 500 U 1.0 YES S3VE Manganese Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Nickel Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Potassium Target 500 U ug/L 500 U 1.0 YES S3VE Selenium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 500 U ug/L 500 U 1.0 YES S3VE Thallium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 10 U ug/L 10 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 31 Thu, 6 Jun 2024 16:52:00 Sample Number: PBW293 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 32 Thu, 6 Jun 2024 16:52:00 Sample Number: PBW295 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2.0 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Chromium Target 2.0 UJ ug/L 2.0 U 1.0 YES S3VE Nickel Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH4 Lab Name: Southwest Research Institute Page 33 Thu, 6 Jun 2024 16:52:00 Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 1 Thu, 6 Jun 2024 13:22:21 Sample Number: LCS246 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Spike 41 ug/L 41 1.0 YES S3VE Antimony Spike 3.8 ug/L 3.8 1.0 YES S3VE Arsenic Spike 2.1 ug/L 2.1 1.0 YES S3VE Barium Spike 19 ug/L 19 1.0 YES S3VE Beryllium Spike 2.0 ug/L 2.0 1.0 YES S3VE Calcium Spike 990 ug/L 990 1.0 YES S3VE Chromium Spike 5.1 ug/L 5.1 1.0 YES S3VE Cobalt Spike 2.0 ug/L 2.0 1.0 YES S3VE Copper Spike 3.8 ug/L 3.8 1.0 YES S3VE Iron Spike 400 ug/L 400 1.0 YES S3VE Lead Spike 1.9 ug/L 1.9 1.0 YES S3VE Magnesium Spike 1000 ug/L 1000 1.0 YES S3VE Manganese Spike 2.1 ug/L 2.1 1.0 YES S3VE Nickel Spike 2.0 ug/L 2.0 1.0 YES S3VE Potassium Spike 1000 ug/L 1000 1.0 YES S3VE Selenium Spike 9.4 ug/L 9.4 1.0 YES S3VE Silver Spike 1.9 J+ug/L 1.9 1.0 YES S3VE Sodium Spike 990 ug/L 990 1.0 YES S3VE Thallium Spike 1.9 ug/L 1.9 1.0 YES S3VE Vanadium Spike 9.8 ug/L 9.8 1.0 YES S3VE Zinc Spike 10 ug/L 10 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 2 Thu, 6 Jun 2024 13:22:21 Sample Number: LCS248 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Cadmium Spike 0.42 ug/L 0.42 1.0 YES S3VE Molybdenum Spike 20 ug/L 20 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 3 Thu, 6 Jun 2024 13:22:21 Sample Number: LCS250 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Spike 42 ug/L 42 1.0 YES S3VE Antimony Spike 3.8 ug/L 3.8 1.0 YES S3VE Arsenic Spike 2.1 ug/L 2.1 1.0 YES S3VE Barium Spike 19 ug/L 19 1.0 YES S3VE Beryllium Spike 2.0 ug/L 2.0 1.0 YES S3VE Calcium Spike 990 ug/L 990 1.0 YES S3VE Cobalt Spike 2.0 ug/L 2.0 1.0 YES S3VE Copper Spike 4.0 ug/L 4.0 1.0 YES S3VE Iron Spike 410 ug/L 410 1.0 YES S3VE Lead Spike 2.1 ug/L 2.1 1.0 YES S3VE Magnesium Spike 1000 ug/L 1000 1.0 YES S3VE Manganese Spike 2.1 ug/L 2.1 1.0 YES S3VE Nickel Spike 2.1 ug/L 2.1 1.0 YES S3VE Potassium Spike 1000 ug/L 1000 1.0 YES S3VE Selenium Spike 9.7 ug/L 9.7 1.0 YES S3VE Silver Spike 2.0 J+ug/L 2.0 1.0 YES S3VE Sodium Spike 1000 ug/L 1000 1.0 YES S3VE Thallium Spike 2.0 ug/L 2.0 1.0 YES S3VE Vanadium Spike 9.9 ug/L 9.9 1.0 YES S3VE Zinc Spike 11 ug/L 11 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 4 Thu, 6 Jun 2024 13:22:21 Sample Number: LCS251 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Cadmium Spike 0.43 ug/L 0.43 1.0 YES S3VE Molybdenum Spike 20 ug/L 20 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 5 Thu, 6 Jun 2024 13:22:21 Sample Number: LCS252 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2.0 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Chromium Spike 3.8 J-ug/L 3.8 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 6 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AH5 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: CDPOC pH: 2 Sample Date: 04/22/2024 Sample Time: 11:36:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 7 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AH5 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: CDPOC pH: 2 Sample Date: 04/22/2024 Sample Time: 11:36:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 34 ug/L 34 1.0 YES S3VE Antimony Target 2.5 J ug/L 2.5 DJ 2.0 YES S3VE Arsenic Target 240 ug/L 240 1.0 YES S3VE Barium Target 97 ug/L 97 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 110000 ug/L 110000 D 100.0 YES S3VE Chromium Target 2.3 J+ug/L 2.3 1.0 YES S3VE Cobalt Target 0.71 J ug/L 0.71 DJ 2.0 YES S3VE Copper Target 7.7 J ug/L 7.7 DJ 10.0 YES S3VE Iron Target 110 J ug/L 110 *J 1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 83000 ug/L 83000 D 100.0 YES S3VE Manganese Target 70 J ug/L 70 *1.0 YES S3VE Nickel Target 7.6 ug/L 7.6 D 2.0 YES S3VE Potassium Target 73000 ug/L 73000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 580000 ug/L 580000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 11 ug/L 11 1.0 YES S3VE Zinc Target 13 ug/L 13 1.0 YES S3VE Molybdenum Target 370 ug/L 370 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 8 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AH5D Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 2 Sample Date: 04/22/2024 Sample Time: 11:36:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 9 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AH5S Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 2 Sample Date: 04/22/2024 Sample Time: 11:36:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Spike 0.87 ug/L 0.87 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 10 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AH6 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: PWEA pH: 2 Sample Date: 04/23/2024 Sample Time: 14:10:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 40 U ug/L 40 DU 2.0 YES S3VE Antimony Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 470 ug/L 470 D 10.0 YES S3VE Barium Target 47 ug/L 47 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 1.7 J ug/L 1.7 D 2.0 YES S3VE Calcium Target 1700 J ug/L 1700 DJ 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 2.1 DJ 2.0 YES S3VE Cobalt Target 0.55 J ug/L 0.55 DJ 2.0 YES S3VE Copper Target 7.3 J ug/L 7.3 DJ 10.0 YES S3VE Iron Target 400 U ug/L 400 *DU 2.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 1300 J ug/L 1300 DJ 10.0 YES S3VE Manganese Target 11 J ug/L 11 *D 2.0 YES S3VE Nickel Target 12 ug/L 12 D 2.0 YES S3VE Potassium Target 1200000 ug/L 1200000 D 1000.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 2300000 ug/L 2300000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 15 ug/L 15 D 2.0 YES S3VE Zinc Target 3.0 J ug/L 3.0 DJ 2.0 YES S3VE Molybdenum Target 6900 ug/L 6900 D 100.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 11 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AH8 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: PWAA pH: 2 Sample Date: 04/23/2024 Sample Time: 16:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 40 U ug/L 40 DU 2.0 YES S3VE Antimony Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 460 ug/L 460 D 10.0 YES S3VE Barium Target 48 ug/L 48 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 1.4 J ug/L 1.4 D 2.0 YES S3VE Calcium Target 1600 J ug/L 1600 DJ 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 2.1 DJ 2.0 YES S3VE Cobalt Target 0.53 J ug/L 0.53 DJ 2.0 YES S3VE Copper Target 7.8 J ug/L 7.8 DJ 10.0 YES S3VE Iron Target 400 U ug/L 400 *DU 2.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 1300 J ug/L 1300 DJ 10.0 YES S3VE Manganese Target 11 J ug/L 11 *D 2.0 YES S3VE Nickel Target 12 ug/L 12 D 2.0 YES S3VE Potassium Target 1200000 ug/L 1200000 D 1000.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 2500000 ug/L 2500000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 16 ug/L 16 D 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 6900 ug/L 6900 D 100.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 12 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ0 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: PWBA pH: 2 Sample Date: 04/22/2024 Sample Time: 14:24:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 98 ug/L 98 D 2.0 YES S3VE Barium Target 21 ug/L 21 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.41 ug/L 0.41 D 2.0 YES S3VE Calcium Target 1500 J ug/L 1500 DJ 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 3.0 DJ 2.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 200 U ug/L 200 *U 1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 580 ug/L 580 1.0 YES S3VE Manganese Target 11 J ug/L 11 *1.0 YES S3VE Nickel Target 4.7 ug/L 4.7 D 2.0 YES S3VE Potassium Target 760000 ug/L 760000 D 100.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 1700000 ug/L 1700000 D 1000.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 29 ug/L 29 D 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 1500 ug/L 1500 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 13 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ1 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: PWS pH: 2 Sample Date: 04/22/2024 Sample Time: 11:47:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 48 ug/L 48 1.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 37 ug/L 37 1.0 YES S3VE Barium Target 150 ug/L 150 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 18000 ug/L 18000 D 10.0 YES S3VE Chromium Target 2.0 U ug/L 1.6 J 1.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 520 J ug/L 520 *1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 17000 ug/L 17000 D 10.0 YES S3VE Manganese Target 40 J ug/L 40 *1.0 YES S3VE Nickel Target 0.86 J ug/L 0.86 DJ 2.0 YES S3VE Potassium Target 24000 ug/L 24000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 82000 ug/L 82000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 10 U ug/L 2.7 J 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 14 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ3 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P2M pH: 2 Sample Date: 04/29/2024 Sample Time: 15:35:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 8100 ug/L 8100 D 10.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 85 ug/L 85 1.0 YES S3VE Barium Target 860 ug/L 860 1.0 YES S3VE Beryllium Target 1.1 J ug/L 1.1 DJ 2.0 YES S3VE Cadmium Target 2.0 ug/L 2.0 D 2.0 YES S3VE Calcium Target 530000 ug/L 530000 D 100.0 YES S3VE Chromium Target 24 J+ug/L 24 1.0 YES S3VE Cobalt Target 15 ug/L 15 D 2.0 YES S3VE Copper Target 38 ug/L 38 D 10.0 YES S3VE Iron Target 17000 J ug/L 17000 *D 10.0 YES S3VE Lead Target 45 J ug/L 45 *D 2.0 YES S3VE Magnesium Target 110000 ug/L 110000 D 100.0 YES S3VE Manganese Target 820 J ug/L 820 *D 10.0 YES S3VE Nickel Target 43 ug/L 43 D 2.0 YES S3VE Potassium Target 29000 ug/L 29000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 80000 ug/L 80000 D 100.0 YES S3VE Thallium Target 0.58 J ug/L 0.58 DJ 2.0 YES S3VE Vanadium Target 33 ug/L 33 1.0 YES S3VE Zinc Target 150 ug/L 150 1.0 YES S3VE Molybdenum Target 10 U ug/L 2.7 J 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 15 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ4 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P2HA pH: 2 Sample Date: 04/25/2024 Sample Time: 12:05:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 77 J ug/L 77 1.0 YES S3VE Antimony Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 200 ug/L 200 1.0 YES S3VE Barium Target 250 J ug/L 250 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 5.8 J ug/L 5.8 D 2.0 YES S3VE Calcium Target 11000 ug/L 11000 D 10.0 YES S3VE Chromium Target 3.6 J+ug/L 3.6 1.0 YES S3VE Cobalt Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Copper Target 15 J ug/L 15 DJ 10.0 YES S3VE Iron Target 49 J ug/L 49 *J 1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 38000 ug/L 38000 D 10.0 YES S3VE Manganese Target 33 J ug/L 33 *1.0 YES S3VE Nickel Target 6.1 J ug/L 6.1 D 2.0 YES S3VE Potassium Target 2400000 ug/L 2400000 D 1000.0 YES S3VE Selenium Target 34 J ug/L 34 DJ 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 6100000 ug/L 6100000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 8.9 ug/L 8.9 1.0 YES S3VE Zinc Target 6.6 ug/L 6.6 1.0 YES S3VE Molybdenum Target 22000 ug/L 22000 D 100.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 16 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ5 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P2FA pH: 2 Sample Date: 05/01/2024 Sample Time: 10:05:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 40 U ug/L 40 DU 2.0 YES S3VE Antimony Target 2.0 J ug/L 2.0 DJ 2.0 YES S3VE Arsenic Target 250 ug/L 250 D 2.0 YES S3VE Barium Target 51 ug/L 51 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 16 J ug/L 16 D 2.0 YES S3VE Calcium Target 3500 J ug/L 3500 DJ 10.0 YES S3VE Chromium Target 11 J+ug/L 11 D 2.0 YES S3VE Cobalt Target 1.6 J ug/L 1.6 DJ 2.0 YES S3VE Copper Target 11 J ug/L 11 DJ 10.0 YES S3VE Iron Target 400 U ug/L 400 *DU 2.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 15000 ug/L 15000 D 10.0 YES S3VE Manganese Target 27 J ug/L 27 *D 2.0 YES S3VE Nickel Target 11 ug/L 11 D 2.0 YES S3VE Potassium Target 930000 ug/L 930000 D 1000.0 YES S3VE Selenium Target 20 J ug/L 20 DJ 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 3800000 ug/L 3800000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 65 ug/L 65 D 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 65000 ug/L 65000 D 1000.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 17 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ7 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3CC pH: 2 Sample Date: 05/01/2024 Sample Time: 14:50:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 35 J ug/L 35 DJ 2.0 YES S3VE Antimony Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 1000 ug/L 1000 D 10.0 YES S3VE Barium Target 330 ug/L 330 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 4.1 J ug/L 4.1 D 2.0 YES S3VE Calcium Target 12000 ug/L 12000 D 10.0 YES S3VE Chromium Target 5.2 J-ug/L 5.2 D 2.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 400 U ug/L 400 *DU 2.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 22000 ug/L 22000 D 10.0 YES S3VE Manganese Target 32 J ug/L 32 *D 2.0 YES S3VE Nickel Target 5.1 ug/L 5.1 D 2.0 YES S3VE Potassium Target 1600000 ug/L 1600000 D 1000.0 YES S3VE Selenium Target 13 J ug/L 13 DJ 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 4100000 ug/L 4100000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 32 ug/L 32 1.0 YES S3VE Zinc Target 2.4 J ug/L 2.4 J 1.0 YES S3VE Molybdenum Target 26000 ug/L 26000 D 1000.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 18 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AJ9 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3BB pH: 2 Sample Date: 04/29/2024 Sample Time: 12:53:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 88 ug/L 88 D 2.0 YES S3VE Antimony Target 4.0 UJ ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 48 ug/L 48 D 2.0 YES S3VE Barium Target 610 ug/L 610 D 2.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 UJ ug/L 0.40 DU 2.0 YES S3VE Calcium Target 29000 ug/L 29000 D 10.0 YES S3VE Chromium Target 4.0 UJ ug/L 2.4 DJ 2.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 8.5 J ug/L 8.5 DJ 10.0 YES S3VE Iron Target 240 J ug/L 240 *DJ 2.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 67000 ug/L 67000 D 10.0 YES S3VE Manganese Target 120 J ug/L 120 *D 2.0 YES S3VE Nickel Target 2.8 ug/L 2.8 D 2.0 YES S3VE Potassium Target 67000 ug/L 67000 D 10.0 YES S3VE Selenium Target 14 J ug/L 14 DJ 10.0 YES S3VE Silver Target 1.0 UJ ug/L 1.0 U 1.0 YES S3VE Sodium Target 2700000 ug/L 2700000 D 1000.0 YES S3VE Thallium Target 2.0 UJ ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 9.1 J ug/L 9.1 DJ 2.0 YES S3VE Zinc Target 10 U ug/L 10 DU 2.0 YES S3VE Molybdenum Target 170 J+ug/L 170 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 19 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK0 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3DA pH: 2 Sample Date: 05/01/2024 Sample Time: 12:15:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 290 ug/L 290 D 10.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 110 ug/L 110 1.0 YES S3VE Barium Target 180 ug/L 180 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 13000 ug/L 13000 D 10.0 YES S3VE Chromium Target 3.6 J+ug/L 3.6 1.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 400 J ug/L 400 *1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 11000 ug/L 11000 D 10.0 YES S3VE Manganese Target 31 J ug/L 31 *1.0 YES S3VE Nickel Target 2.3 ug/L 2.3 D 2.0 YES S3VE Potassium Target 110000 ug/L 110000 D 100.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 570000 ug/L 570000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 6.0 ug/L 6.0 1.0 YES S3VE Zinc Target 3.3 J ug/L 3.3 J 1.0 YES S3VE Molybdenum Target 650 ug/L 650 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 20 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK2 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3EA pH: 2 Sample Date: 04/30/2024 Sample Time: 13:55:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 2600 ug/L 2600 D 10.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 32 ug/L 32 1.0 YES S3VE Barium Target 88 ug/L 88 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 1.1 ug/L 1.1 D 2.0 YES S3VE Calcium Target 36000 ug/L 36000 D 10.0 YES S3VE Chromium Target 6.0 J+ug/L 6.0 1.0 YES S3VE Cobalt Target 1.4 J ug/L 1.4 DJ 2.0 YES S3VE Copper Target 11 J ug/L 11 DJ 10.0 YES S3VE Iron Target 3100 J ug/L 3100 *1.0 YES S3VE Lead Target 12 J ug/L 12 *D 2.0 YES S3VE Magnesium Target 19000 ug/L 19000 D 10.0 YES S3VE Manganese Target 120 J ug/L 120 *1.0 YES S3VE Nickel Target 4.1 ug/L 4.1 D 2.0 YES S3VE Potassium Target 27000 ug/L 27000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 85000 ug/L 85000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 5.5 ug/L 5.5 1.0 YES S3VE Zinc Target 30 ug/L 30 1.0 YES S3VE Molybdenum Target 10 U ug/L 2.7 J 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 21 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK3 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3GB pH: 2 Sample Date: 04/24/2024 Sample Time: 11:46:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 21 ug/L 21 1.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 11 ug/L 11 1.0 YES S3VE Barium Target 76 ug/L 76 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 9700 ug/L 9700 D 10.0 YES S3VE Chromium Target 2.1 J+ug/L 2.1 1.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 62 J ug/L 62 *J 1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 14000 ug/L 14000 D 10.0 YES S3VE Manganese Target 21 J ug/L 21 *1.0 YES S3VE Nickel Target 1.3 J ug/L 1.3 DJ 2.0 YES S3VE Potassium Target 120000 ug/L 120000 D 100.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 670000 ug/L 670000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 2.2 J ug/L 2.2 J 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 320 ug/L 320 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 22 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK4 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3O pH: 2 Sample Date: 04/24/2024 Sample Time: 13:30:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 44 ug/L 44 1.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 32 ug/L 32 1.0 YES S3VE Barium Target 130 ug/L 130 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 15000 ug/L 15000 D 10.0 YES S3VE Chromium Target 2.0 J+ug/L 2.0 1.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 130 J ug/L 130 *J 1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 17000 ug/L 17000 D 10.0 YES S3VE Manganese Target 34 J ug/L 34 *1.0 YES S3VE Nickel Target 0.88 J ug/L 0.88 DJ 2.0 YES S3VE Potassium Target 70000 ug/L 70000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 130000 ug/L 130000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 1.9 J ug/L 1.9 J 1.0 YES S3VE Molybdenum Target 20 J+ug/L 20 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 23 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK5 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3FA pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 1900 ug/L 1900 D 10.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 280 ug/L 280 D 10.0 YES S3VE Barium Target 130 ug/L 130 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.56 ug/L 0.56 D 2.0 YES S3VE Calcium Target 14000 ug/L 14000 D 10.0 YES S3VE Chromium Target 4.4 J+ug/L 4.4 1.0 YES S3VE Cobalt Target 1.2 J ug/L 1.2 DJ 2.0 YES S3VE Copper Target 11 J ug/L 11 DJ 10.0 YES S3VE Iron Target 2300 J ug/L 2300 *1.0 YES S3VE Lead Target 4.0 J ug/L 4.0 *D 2.0 YES S3VE Magnesium Target 13000 ug/L 13000 D 10.0 YES S3VE Manganese Target 70 J ug/L 70 *1.0 YES S3VE Nickel Target 5.1 ug/L 5.1 D 2.0 YES S3VE Potassium Target 620000 ug/L 620000 D 100.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 550000 ug/L 550000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 24 ug/L 24 1.0 YES S3VE Zinc Target 13 ug/L 13 1.0 YES S3VE Molybdenum Target 1400 ug/L 1400 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 24 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK5A Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Lead Spike 13 ug/L 13 *D 2.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 25 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK5D Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 1800 ug/L 1800 D 10.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 270 ug/L 270 D 10.0 YES S3VE Barium Target 120 ug/L 120 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.55 ug/L 0.55 D 2.0 YES S3VE Calcium Target 14000 ug/L 14000 D 10.0 YES S3VE Chromium Target 4.2 J+ug/L 4.2 1.0 YES S3VE Cobalt Target 1.2 J ug/L 1.2 DJ 2.0 YES S3VE Copper Target 11 J ug/L 11 DJ 10.0 YES S3VE Iron Target 2200 ug/L 2200 1.0 YES S3VE Lead Target 4.0 ug/L 4.0 *D 2.0 YES S3VE Magnesium Target 13000 ug/L 13000 D 10.0 YES S3VE Manganese Target 69 ug/L 69 1.0 YES S3VE Nickel Target 5.1 ug/L 5.1 D 2.0 YES S3VE Potassium Target 610000 ug/L 610000 D 100.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 540000 ug/L 540000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 23 ug/L 23 1.0 YES S3VE Zinc Target 12 ug/L 12 1.0 YES S3VE Molybdenum Target 1300 ug/L 1300 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 26 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK5L Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 1900 ug/L 1900 50.0 YES S3VE Antimony Target 20 U ug/L 20 U 10.0 YES S3VE Arsenic Target 270 ug/L 270 50.0 YES S3VE Barium Target 120 ug/L 120 5.0 YES S3VE Beryllium Target 10 U ug/L 10 U 10.0 YES S3VE Cadmium Target 2.0 U ug/L 2.0 U 10.0 YES S3VE Calcium Target 13000 J ug/L 13000 J 50.0 YES S3VE Chromium Target 10 U ug/L 9.2 J 5.0 YES S3VE Cobalt Target 10 U ug/L 10 U 10.0 YES S3VE Copper Target 100 U ug/L 100 U 50.0 YES S3VE Iron Target 2900 ug/L 2900 *5.0 YES S3VE Lead Target 4.3 J ug/L 4.3 J 10.0 YES S3VE Magnesium Target 12000 J ug/L 12000 J 50.0 YES S3VE Manganese Target 91 ug/L 91 *5.0 YES S3VE Nickel Target 7.5 J ug/L 7.5 J 10.0 YES S3VE Potassium Target 620000 ug/L 620000 500.0 YES S3VE Selenium Target 250 U ug/L 250 U 50.0 YES S3VE Silver Target 5.0 U ug/L 5.0 U 5.0 YES S3VE Sodium Target 550000 ug/L 550000 500.0 YES S3VE Thallium Target 10 U ug/L 10 U 10.0 YES S3VE Vanadium Target 22 J ug/L 22 J 5.0 YES S3VE Zinc Target 15 J ug/L 15 J 5.0 YES S3VE Molybdenum Target 1300 ug/L 1300 50.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 27 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK5S Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2 Sample Date: 04/30/2024 Sample Time: 14:56:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Antimony Spike 93 ug/L 93 D 2.0 YES S3VE Arsenic Spike 320 ug/L 320 D 10.0 YES S3VE Barium Spike 2300 ug/L 2300 D 10.0 YES S3VE Beryllium Spike 42 ug/L 42 D 2.0 YES S3VE Cadmium Spike 44 ug/L 44 D 2.0 YES S3VE Chromium Spike 220 J+ug/L 220 1.0 YES S3VE Cobalt Spike 430 ug/L 430 D 2.0 YES S3VE Copper Spike 240 ug/L 240 D 10.0 YES S3VE Lead Spike 19 ug/L 19 *D 2.0 YES S3VE Manganese Spike 540 ug/L 540 D 10.0 YES S3VE Nickel Spike 390 ug/L 390 D 2.0 YES S3VE Selenium Spike 95 ug/L 95 D 10.0 YES S3VE Silver Spike 40 J+ug/L 40 1.0 YES S3VE Thallium Spike 47 ug/L 47 D 2.0 YES S3VE Vanadium Spike 550 ug/L 550 D 10.0 YES S3VE Zinc Spike 520 ug/L 520 D 10.0 YES S3VE Molybdenum Spike 1500 ug/L 1500 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 28 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK7 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: P3AA pH: 2 Sample Date: 04/22/2024 Sample Time: 13:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 29 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK7 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P3AA pH: 2 Sample Date: 04/22/2024 Sample Time: 13:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 41 ug/L 41 1.0 YES S3VE Antimony Target 2.5 J ug/L 2.5 DJ 2.0 YES S3VE Arsenic Target 250 ug/L 250 1.0 YES S3VE Barium Target 93 ug/L 93 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 110000 ug/L 110000 D 100.0 YES S3VE Chromium Target 2.3 J+ug/L 2.3 1.0 YES S3VE Cobalt Target 0.76 J ug/L 0.76 DJ 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 130 J ug/L 130 *J 1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 80000 ug/L 80000 D 10.0 YES S3VE Manganese Target 71 J ug/L 71 *1.0 YES S3VE Nickel Target 7.5 ug/L 7.5 D 2.0 YES S3VE Potassium Target 71000 ug/L 71000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 610000 ug/L 610000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 11 ug/L 11 1.0 YES S3VE Zinc Target 13 ug/L 13 1.0 YES S3VE Molybdenum Target 370 ug/L 370 D 10.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 30 Thu, 6 Jun 2024 13:22:21 Sample Number: MH0AK9 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: P2EA pH: 2 Sample Date: 04/25/2024 Sample Time: 12:00:00 % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 95 ug/L 95 1.0 YES S3VE Antimony Target 4.0 U ug/L 4.0 DU 2.0 YES S3VE Arsenic Target 36 ug/L 36 1.0 YES S3VE Barium Target 160 ug/L 160 1.0 YES S3VE Beryllium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Cadmium Target 0.40 U ug/L 0.40 DU 2.0 YES S3VE Calcium Target 22000 ug/L 22000 D 10.0 YES S3VE Chromium Target 2.5 J+ug/L 2.5 1.0 YES S3VE Cobalt Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Copper Target 20 U ug/L 20 DU 10.0 YES S3VE Iron Target 380 J ug/L 380 *1.0 YES S3VE Lead Target 2.0 UJ ug/L 2.0 *DU 2.0 YES S3VE Magnesium Target 18000 ug/L 18000 D 10.0 YES S3VE Manganese Target 55 J ug/L 55 *1.0 YES S3VE Nickel Target 0.83 J ug/L 0.83 DJ 2.0 YES S3VE Potassium Target 24000 ug/L 24000 D 10.0 YES S3VE Selenium Target 50 U ug/L 50 DU 10.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 82000 ug/L 82000 D 100.0 YES S3VE Thallium Target 2.0 U ug/L 2.0 DU 2.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 1.9 J ug/L 1.9 J 1.0 YES S3VE Molybdenum Target 10 U ug/L 1.0 J 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 31 Thu, 6 Jun 2024 13:22:21 Sample Number: PBW286 Method: Mercury by Cold Vapor Matrix: Water MA Number: Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Mercury Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 32 Thu, 6 Jun 2024 13:22:21 Sample Number: PBW290 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Arsenic Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Barium Target 10 U ug/L 10 U 1.0 YES S3VE Beryllium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Cadmium Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Calcium Target 500 U ug/L 500 U 1.0 YES S3VE Chromium Target 1.3 J ug/L 1.3 J 1.0 YES S3VE Cobalt Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Copper Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Magnesium Target 500 U ug/L 500 U 1.0 YES S3VE Manganese Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Nickel Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Potassium Target 500 U ug/L 500 U 1.0 YES S3VE Selenium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 500 U ug/L 500 U 1.0 YES S3VE Thallium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 10 U ug/L 10 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 33 Thu, 6 Jun 2024 13:22:21 Sample Number: PBW292 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 6 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Aluminum Target 20 U ug/L 20 U 1.0 YES S3VE Antimony Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Arsenic Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Barium Target 10 U ug/L 10 U 1.0 YES S3VE Beryllium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Cadmium Target 0.20 U ug/L 0.20 U 1.0 YES S3VE Calcium Target 500 U ug/L 500 U 1.0 YES S3VE Cobalt Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Copper Target 2.0 U ug/L 2.0 U 1.0 YES S3VE Iron Target 200 U ug/L 200 U 1.0 YES S3VE Lead Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Magnesium Target 500 U ug/L 500 U 1.0 YES S3VE Manganese Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Nickel Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Potassium Target 500 U ug/L 500 U 1.0 YES S3VE Selenium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Silver Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Sodium Target 500 U ug/L 500 U 1.0 YES S3VE Thallium Target 1.0 U ug/L 1.0 U 1.0 YES S3VE Vanadium Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Zinc Target 5.0 U ug/L 5.0 U 1.0 YES S3VE Molybdenum Target 10 U ug/L 10 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 34 Thu, 6 Jun 2024 13:22:21 Sample Number: PBW295 Method: Metals by ICP-MS Matrix: Water MA Number: 3068.1 Sample Location: pH: 2.0 Sample Date: Sample Time: % Moisture: % Solids: Analyte Name Analyte Type Validation Result Validation Flag Units Lab Result Lab Flag Dilution Factor Reportable Validation Level Chromium Target 2.0 UJ ug/L 2.0 U 1.0 YES S3VE Sample Summary Report Project Name: PORTLAND CEMENT (KILN DUST 2 & 3) Project GroupID: 51420/68HERH20D0016/MH0AH5 Lab Name: Southwest Research Institute Page 35 Thu, 6 Jun 2024 13:22:21 Appendix C: Water Level Measurements WATER LEVEL IUEASUREMENTS SITE NAIUIE: Portland Cement ,,? t, t"f of trt{ Date ltme WellNumber Depth to Water TotalDepth \I v {^l llurlv'+ln) bL PWEA { .uJ zl ,\L +l1n 14 t2: \o PWBA 5.r1 2-1 . tL 4l rn) tA lz', \?PWS ).81 *5, trt, 1f 4llAl*r4'.05 P2CA 1,b3 27.e4 +1.+'),+[t; t.y P2BA UN Ywah,rrt,l Jc z',rmlp ovtpr^l.l /+1,k tA 14.qo P2M Dh. L1 Hfrvl/fr{fr 7ui 4 A 1A tb" v1 PZEA +,43 10 . tn4 4l 7o 1A 15:2n P2GA 1,h+1A.91 1 L5 >+0q 1 5q P2HA I,+l tA.vz 4 lr4 14 l4: 4A P2FA '.%t 2l "vL *l--+'lzq 14"@ P3CC 1 ,11 22, 02- 4 7A A [o '\E P3BB \a. 1t-79.9q +t-b ?A l2;q0 P3DA q.4b |c,.77 1 hol14 flW\Alf/boot'lu P3EA a-lr ln qr 7lz+lz4 lo'cp P3GB b.$z z-{"ti 4l 24 -?,4 lo: 02 P30 4,99 42A1 q lzq '?r+c0: hb P3FA 4.14 It,g,t) ,^ - b Appendix D: Data Trends for Monitoring Wells Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:Standard Units Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 9.69 9.69 8.51 8.59 9.98 8.00 2 Nov-15 9.62 9.77 8.71 8.67 9.20 8.00 3 Jun-16 9.83 9.92 8.60 8.78 10.20 8.00 4 Nov-16 9.94 9.88 8.70 8.95 9.54 8.00 5 May-17 9.66 9.70 8.39 9.22 9.80 8.00 6 Jun-18 9.70 9.61 8.33 8.75 9.30 8.00 7 Jun-19 9.62 9.66 8.29 8.97 9.36 8.00 8 Jun-21 9.89 9.72 8.32 9.22 9.38 8.00 9 Jun-22 10.20 10.00 8.30 0 9.30 8.00 10 Jun-23 10.00 9.60 0 9.20 9.40 8.00 11 Apr-24 10 9.6 0 9.3 9.3 8.00 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.02 0.01 0.49 0.33 0.03 0.00 Mann-Kendall Statistic (S):25 -16 -42 26 -16 0 Confidence Factor:97.0%87.5%>99.9%97.5%87.5%45.1% Concentration Trend:Increasing Stable Decreasing Increasing Stable Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com PH WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION (Standard Units) 22-Aug-24 Portland Cement pH West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( S t a n d a r d Un i t s ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:Standard Units Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 8.19 9.44 8.54 9.98 9.17 8.00 2 Nov-15 8.28 9.63 8.57 8.82 8.91 8.00 3 Jun-16 8.30 9.85 8.59 10.10 9.21 8.00 4 Nov-16 0 10.10 9.84 9.10 8.85 8.00 5 May-17 0 9.98 9.78 10.10 8.48 8.00 6 Jun-18 8.14 0 8.72 10.00 8.40 8.00 7 Jun-19 8.48 0 0 9.77 8.63 8.00 8 Jun-21 8.99 9.99 8.51 9.99 8.63 8.00 9 Jun-22 8.40 10.00 9.30 9.90 8.30 8.00 10 Jun-23 8.30 10.00 9.20 9.20 8.80 8.00 11 Apr-24 8.4 9.9 8.9 9.3 8.7 8.00 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.50 0.49 0.34 0.05 0.03 0.00 Mann-Kendall Statistic (S):20 15 7 -8 -22 0 Confidence Factor:92.9%85.9%67.6%70.3%94.9%45.1% Concentration Trend:Prob. Increasing No Trend No Trend Stable Prob. Decreasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com PH SITE 3 (SHALLOW) CONCENTRATION (Standard Units) 22-Aug-24 Portland Cement pH Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 7 7.5 8 8.5 9 9.5 10 10.5 11 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( S t a n d a r d Un i t s ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units: ug/L Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 0.13 0.13 0.13 0.13 0.13 15 2 Nov-15 0.56 0.13 0.13 0.13 0.13 15 3 Jun-16 0.13 0.695 0.13 0.13 0.13 15 4 Nov-16 0.13 0.13 0.13 0.13 0.13 15 5 May-17 0.13 0.13 14 0.13 0.13 15 6 Jun-18 0.13 0.13 0.13 0.13 0.13 15 7 Jun-19 0.13 0.13 0.13 0.13 0.13 15 8 Jun-21 0.13 0.13 0.13 0.13 0.13 15 9 Jun-22 0.35 0.13 0.48 0 0.51 15 10 Jun-23 0.24 0.13 0 0.13 2.6 15 11 Apr-24 0.42 0.42 0 0.42 0.42 15 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.67 0.88 2.99 0.69 1.77 0.00 Mann-Kendall Statistic (S):14 3 -11 3 23 0 Confidence Factor:84.0%56.0%77.7%56.0%95.7%45.1% Concentration Trend:No Trend No Trend No Trend No Trend Increasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com LEAD WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION ( ug/L) 22-Aug-24 Portland Cement Lead West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 0.1 1 10 100 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 0.13 0.13 0.13 92.7 0.13 15 2 Nov-15 2.22 0.13 46.5 760 1.29 15 3 Jun-16 0.13 0.13 0.13 188 1.53 15 4 Nov-16 0 0.13 0.13 224 0.13 15 5 May-17 0 0.13 0.13 0.13 0.13 15 6 Jun-18 0.13 0 0.13 165 0.13 15 7 Jun-19 0.13 0 0 106 0.13 15 8 Jun-21 0.13 0.13 3 25 0.13 15 9 Jun-22 0.13 0.47 0.76 14 1 15 10 Jun-23 0.13 0.13 3 3.8 0.13 15 11 Apr-24 0.42 0.42 0.42 4 0.42 15 12 13 14 15 16 17 18 19 20 Coefficient of Variation:1.98 0.91 2.80 1.53 1.15 0.00 Mann-Kendall Statistic (S):7 9 8 -29 -2 0 Confidence Factor:67.6%72.9%70.3%98.7%53.0%45.1% Concentration Trend:No Trend No Trend No Trend Decreasing No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com LEAD SITE 3 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Lead Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 0.1 1 10 100 1000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units: ug/L Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 5950 1410 249 23600 17900 182 2 Nov-15 3720 1400 337 2120 9630 182 3 Jun-16 4950 2310 195 28100 32800 182 4 Nov-16 6050 1470 517 7470 8530 182 5 May-17 3150 1600 325 81200 14400 182 6 Jun-18 2830 4850 109 6770 21500 182 7 Jun-19 6170 2140 150 16800 20800 182 8 Jun-21 9600 1600 300 31000 8900 182 9 Jun-22 8000 2200 320 0 5100 182 10 Jun-23 8700 1500 0 60000 15000 182 11 Apr-24 6900 1500 0 65000 22000 182 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.37 0.50 0.69 0.95 0.50 0.00 Mann-Kendall Statistic (S):23 9 -22 13 -1 0 Confidence Factor:95.7%72.9%94.9%82.1%50.0%45.1% Concentration Trend:Increasing No Trend Prob. Decreasing No Trend Stable Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MOLYBDENUM WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION ( ug/L) 22-Aug-24 Portland Cement Molybdenum West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 1 10 100 1000 10000 100000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 101 4990 13 6850 10600 182 2 Nov-15 20.8 6420 9.12 312 4920 182 3 Jun-16 14.8 18400 39.9 5510 6690 182 4 Nov-16 0 25500 17400 416 265 182 5 May-17 0 24400 5400 7470 202 182 6 Jun-18 4.56 0 131 5150 886 182 7 Jun-19 4.56 0 0 2790 95.4 182 8 Jun-21 420 31000 1300 3200 1800 182 9 Jun-22 130 31000 1700 2600 610 182 10 Jun-23 38 31000 810 600 290 182 11 Apr-24 170 26000 650 1400 320 182 12 13 14 15 16 17 18 19 20 Coefficient of Variation:1.54 0.70 2.08 0.79 1.44 0.00 Mann-Kendall Statistic (S):13 23 9 -15 -21 0 Confidence Factor:82.1%95.7%72.9%85.9%94.0%45.1% Concentration Trend:No Trend Increasing No Trend Stable Prob. Decreasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MOLYBDENUM SITE 3 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Molybdenum Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 1 10 100 1000 10000 100000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units: ug/L Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 5.96 1.1 14.6 7.14 1.1 440 2 Nov-15 1.1 1.1 1.1 1.1 1.1 440 3 Jun-16 6.19 25.1 10.4 1.1 11.1 440 4 Nov-16 1.1 1.1 1.1 1.1 1.1 440 5 May-17 1.1 1.1 1.1 1.1 1.1 440 6 Jun-18 1.1 51.3 15.7 1.1 1.1 440 7 Jun-19 1.1 1.1 33.7 12 1.1 440 8 Jun-21 9 7.6 34 36 20 440 9 Jun-22 9.2 7.8 24 0 24 440 10 Jun-23 8.4 6.8 0 27 57 440 11 Apr-24 11 11 0 27 33 440 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.80 1.46 1.08 1.27 1.33 0.00 Mann-Kendall Statistic (S):23 17 -1 14 30 0 Confidence Factor:95.7%89.1%50.0%84.0%99.0%45.1% Concentration Trend:Increasing No Trend No Trend No Trend Increasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MANGANESE WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION ( ug/L) 22-Aug-24 Portland Cement Manganese West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 1 10 100 1000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 50.2 2.23 18.4 2650 7.04 440 2 Nov-15 70.1 1.1 1180 10600 38.1 440 3 Jun-16 39.8 1.1 19.1 3960 34 440 4 Nov-16 0 1.1 17.2 3620 25 440 5 May-17 0 1.1 1.1 20.6 1.1 440 6 Jun-18 39.1 0 28.7 3640 182 440 7 Jun-19 40.8 0 0 2070 12.3 440 8 Jun-21 130 29 48 320 16 440 9 Jun-22 160 29 23 89 13 440 10 Jun-23 110 23 39 58 17 440 11 Apr-24 120 32 31 70 21 440 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.78 1.28 2.73 1.28 1.52 0.00 Mann-Kendall Statistic (S):20 15 7 -31 -1 0 Confidence Factor:92.9%85.9%67.6%99.2%50.0%45.1% Concentration Trend:Prob. Increasing No Trend No Trend Decreasing No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MANGANESE SITE 3 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Manganese Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 1 10 100 1000 10000 100000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units: ug/L Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 1 1 1 14.1 1 100 2 Nov-15 1 5.1 1 10.6 5.2 100 3 Jun-16 1 5.48 1 17.4 1 100 4 Nov-16 1 1 1 1 1 100 5 May-17 1 1 1 160 1 100 6 Jun-18 1 1 1 1 1 100 7 Jun-19 1 1 1 1 1 100 8 Jun-21 2.2 3.8 0.53 5.6 1.7 100 9 Jun-22 2.3 3.5 0.6 0 2.2 100 10 Jun-23 1.3 2 0 7.9 4.5 100 11 Apr-24 1 1 0 11 3.6 100 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.40 0.76 0.55 2.23 0.75 0.00 Mann-Kendall Statistic (S):17 -4 -31 -10 20 0 Confidence Factor:89.1%59.0%99.2%75.3%92.9%45.1% Concentration Trend:No Trend Stable Decreasing No Trend Prob. Increasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com CHROMIUM WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION ( ug/L) 22-Aug-24 Portland Cement Chromium West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 0.1 1 10 100 1000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 1 1 1 82.5 1 100 2 Nov-15 1 5.38 505 197 1 100 3 Jun-16 1 1 5.25 97.2 1 100 4 Nov-16 0 1 1 83.7 1 100 5 May-17 0 1 1 1 1 100 6 Jun-18 1 0 11.2 106 1 100 7 Jun-19 1 0 0 41.4 1 100 8 Jun-21 1.9 4.3 6.7 16 0.85 100 9 Jun-22 1.5 4 1.2 4.7 1.1 100 10 Jun-23 1.1 3.5 6.2 1.7 0.55 100 11 Apr-24 1 5.2 3.6 4.4 2.1 100 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.58 0.87 3.07 1.08 0.36 0.00 Mann-Kendall Statistic (S):15 8 0 -29 2 0 Confidence Factor:85.9%70.3%45.1%98.7%53.0%45.1% Concentration Trend:No Trend No Trend No Trend Decreasing No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com CHROMIUM SITE 3 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Chromium Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 0.1 1 10 100 1000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units: ug/L Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 0.30 0.30 0.30 0.30 0.30 6.2 2 Nov-15 0.30 0.30 0.30 0.30 0.30 6.2 3 Jun-16 0.30 0.30 0.30 3.18 4.47 6.2 4 Nov-16 0.30 0.30 0.30 0.30 0.30 6.2 5 May-17 0.30 0.30 0.30 0.30 0.30 6.2 6 Jun-18 0.30 0.30 0.30 0.30 0.30 6.2 7 Jun-19 0.30 0.30 0.30 0.30 0.30 6.2 8 Jun-21 2.7 0.37 0.30 7.4 4.5 6.2 9 Jun-22 2.1 0.56 0.30 0 1.4 6.2 10 Jun-23 0.52 0.3 0 0.69 0.30 6.2 11 Apr-24 1.7 0.41 0 16 5.8 6.2 12 13 14 15 16 17 18 19 20 Coefficient of Variation:1.07 0.24 0.49 1.87 1.29 0.00 Mann-Kendall Statistic (S):24 21 -18 12 16 0 Confidence Factor:96.4%94.0%90.5%79.9%87.5%45.1% Concentration Trend:Increasing Prob. Increasing Prob. Decreasing No Trend No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com CADMIUM WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION ( ug/L) 22-Aug-24 Portland Cement Cadmium West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 0.1 1 10 100 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 0.10 0.30 0.30 4.81 1.35 6.2 2 Nov-15 0.10 1.12 0.95 12.40 1.42 6.2 3 Jun-16 0.10 0.651 0.30 5.03 0.61 6.2 4 Nov-16 0 9.74 0.30 4.48 0.30 6.2 5 May-17 0 0.30 0.30 0.30 0.30 6.2 6 Jun-18 0.10 0 0.30 4.31 0.30 6.2 7 Jun-19 0.10 0 0 3.42 0.30 6.2 8 Jun-21 0.10 7.8 0.37 1.00 0.42 6.2 9 Jun-22 0.10 7.5 0.49 0.73 0.18 6.2 10 Jun-23 0.10 0.48 0.10 0.10 0.10 6.2 11 Apr-24 0.18 4.1 0.18 0.56 0.18 6.2 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.56 1.28 0.75 1.06 0.93 0.00 Mann-Kendall Statistic (S):14 3 -11 -39 -36 0 Confidence Factor:84.0%56.0%77.7%99.9%99.8%45.1% Concentration Trend:No Trend No Trend Stable Decreasing Decreasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com CADMIUM SITE 3 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Cadmium Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 0.1 1 10 100 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWEA PWBA P2BA P2FA P2HA Cleanup Sampling Sampling Event Date 1 Jun-15 133 40 24.5 49.8 645 64 2 Nov-15 89.7 42.4 34.8 45.2 193 64 3 Jun-16 111 71.8 14.8 72 1020 64 4 Nov-16 151 41.4 37.7 86.7 253 64 5 May-17 83 74.5 7.5 287 461 64 6 Jun-18 86.9 168 29 57.7 274 64 7 Jun-19 161 70.1 7.5 70.6 252 64 8 Jun-21 430 73 7.3 35 250 64 9 Jun-22 360 110 8 0 190 64 10 Jun-23 600 91 0 110 230 64 11 Apr-24 470 98 0 250 200 64 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.76 0.46 0.88 0.93 0.72 0.00 Mann-Kendall Statistic (S):31 31 -33 7 -29 0 Confidence Factor:99.2%99.2%99.5%67.6%98.7%45.1% Concentration Trend:Increasing Increasing Decreasing No Trend Decreasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com ARSENIC WEST SITE AND SITE 2 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Arsenic West Site and Site 2 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 1 10 100 1000 10000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWEA PWBA P2BA P2FA P2HA Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:P3BB P3CC P3DA P3FA P3GB Cleanup Sampling Sampling Event Date 1 Jun-15 53.9 198 58.4 1010 95.2 64 2 Nov-15 62.3 180 81.8 406 33.6 64 3 Jun-16 52.9 352 57.9 796 64.9 64 4 Nov-16 0 532 362 209 11.8 64 5 May-17 0 790 562 868 7.5 64 6 Jun-18 56.7 0 70.7 916 7.5 64 7 Jun-19 48.2 0 0 572 5.15 64 8 Jun-21 44 1000 110 780 13 64 9 Jun-22 61 1000 190 710 20 64 10 Jun-23 45 1100 190 220 12 64 11 Apr-24 48 1000 110 280 11 64 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.51 0.77 1.01 0.48 1.13 0.00 Mann-Kendall Statistic (S):-8 27 11 -17 -20 0 Confidence Factor:70.3%98.0%77.7%89.1%92.9%45.1% Concentration Trend:Stable Increasing No Trend Stable Prob. Decreasing Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com ARSENIC SITE 3 (SHALLOW) CONCENTRATION (ug/L) 22-Aug-24 Portland Cement Arsenic Site 3 (Shallow) GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 1 10 100 1000 10000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date P3BB P3CC P3DA P3FA P3GB Cleanup Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:Standard Units Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 7.77 8.02 7.96 8.2 8.02 8 2 Nov-15 8.04 8.02 7.98 8.22 8.02 8 3 Jun-16 7.77 7.89 7.99 8.58 0 8 4 Nov-16 8.02 7.97 8.04 8.38 0 8 5 May-17 7.61 7.8 7.93 8.16 0 8 6 Jun-18 7.74 7.80 8.31 0 0 8 7 Jun-19 7.94 7.87 0 8.44 0 8 8 Jun-21 8.13 7.91 8.48 8.17 0 8 9 Jun-22 7.8 0 10.7 7.4 10 8 10 Jun-23 7.8 0 8.8 8.2 0 8 11 Apr-24 7.7 8.1 8.2 8.1 7.8 8 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.02 0.49 0.35 0.33 1.40 0.00 Mann-Kendall Statistic (S):-5 -18 25 -16 -3 0 Confidence Factor:61.9%90.5%97.0%87.5%56.0%45.1% Concentration Trend:Stable Prob. Decreasing Increasing Stable No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com PH INTERMEDIATE WELLS CONCENTRATION (Standard Units) 22-Aug-24 Portland Cement pH Intermediate Wells GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Kelsey Robinson 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( S t a n d a r d Un i t s ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 0.25 0.25 0.25 0.25 0.5 15 2 Nov-15 0.25 0.25 0.25 0.25 0.5 15 3 Jun-16 0.25 11.8 0.25 0.25 0 15 4 Nov-16 0.25 0.25 0.25 9.63 0 15 5 May-17 0.25 0.25 0.25 0.25 0 15 6 Jun-18 0.25 0.25 34.7 0 0 15 7 Jun-19 0.25 0.25 0 14.5 0 15 8 Jun-21 0.25 0.25 36 0.25 0 15 9 Jun-22 0.25 0 0.42 0.64 5.7 15 10 Jun-23 2.3 0 64 0.25 0 15 11 Apr-24 0.42 45 12 0.42 0.42 15 12 13 14 15 16 17 18 19 20 Coefficient of Variation:1.36 2.56 1.61 2.02 2.61 0.00 Mann-Kendall Statistic (S):17 -9 23 8 -3 0 Confidence Factor:89.1%72.9%95.7%70.3%56.0%45.1% Concentration Trend:No Trend No Trend Increasing No Trend No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. LEAD INTERMEDIATE WELL CONCENTRATION (ug/L) GSI Environmental Inc., www.gsi-net.com GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis 22-Aug-24 Portland Cement Lead Intermediate Well Kelsey Robinson 0.1 1 10 100 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 5 5 5 442 5 182 2 Nov-15 5 5 5 333 2.5 182 3 Jun-16 5 5 5.36 755 0 182 4 Nov-16 5 5 5 366 0 182 5 May-17 5 5 5 173 0 182 6 Jun-18 5 5 153 0 0 182 7 Jun-19 5 9.76 0 80.6 0 182 8 Jun-21 5 5 53 54 0 182 9 Jun-22 0.76 0 14 61 86 182 10 Jun-23 5 0 5 19 0 182 11 Apr-24 0.14 0.14 0.14 20 0.14 182 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.44 0.72 2.01 1.14 3.02 0.00 Mann-Kendall Statistic (S):-17 -17 -3 -35 -4 0 Confidence Factor:89.1%89.1%56.0%99.7%59.0%45.1% Concentration Trend:Stable Stable No Trend Decreasing No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. MOLYBDENUM INTERMEDIATE WELLS CONCENTRATION (ug/L) GSI Environmental Inc., www.gsi-net.com GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis 22-Aug-24 Portland Cement Molybdenum Intermediate Wells Kelsey Robinson 0.1 1 10 100 1000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 30.7 36.2 68.2 23.8 36.2 440 2 Nov-15 39.9 42.8 66.3 28.7 42.8 440 3 Jun-16 29.3 137 65.2 18.8 0 440 4 Nov-16 23.7 41.8 65.8 118 0 440 5 May-17 30 42.4 90.3 40.5 0 440 6 Jun-18 25.5 40.1 179 0 0 440 7 Jun-19 45.2 0.25 0 102 0 440 8 Jun-21 33 42 160 44 0 440 9 Jun-22 44 0 1.1 38 39 440 10 Jun-23 62 0 430 35 0 440 11 Apr-24 40 820 120 34 55 440 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.30 2.18 1.05 0.80 1.42 0.00 Mann-Kendall Statistic (S):21 -12 11 3 2 0 Confidence Factor:94.0%79.9%77.7%56.0%53.0%45.1% Concentration Trend:Prob. Increasing No Trend No Trend No Trend No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. MANGANESE INTERMEDIATE WELLS CONCENTRATION (ug/L) GSI Environmental Inc., www.gsi-net.com GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis 22-Aug-24 Portland Cement Manganese Intermediate Wells Kelsey Robinson 0.1 1 10 100 1000 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 1 1 1 1 5 100 2 Nov-15 1 1 1 1 5 100 3 Jun-16 1 9.92 1 1 0 100 4 Nov-16 1 1 1 9.83 0 100 5 May-17 1 1 1 1 0 100 6 Jun-18 1 1 8.3 0 0 100 7 Jun-19 1 1 0 26.7 0 100 8 Jun-21 0.53 0.43 12 1.8 0 100 9 Jun-22 0.36 0 0.52 1.1 0.99 100 10 Jun-23 0.94 0 19 0.48 0 100 11 Apr-24 1 24 6 2 2.5 100 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.25 1.99 1.33 1.90 1.64 0.00 Mann-Kendall Statistic (S):-17 -15 13 7 -5 0 Confidence Factor:89.1%85.9%82.1%67.6%61.9%45.1% Concentration Trend:Stable No Trend No Trend No Trend No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. CHROMIUM INTERMEDIATE WELLS CONCENTRATION (ug/L) GSI Environmental Inc., www.gsi-net.com GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis 22-Aug-24 Portland Cement Chromium Intermediate Wells Kelsey Robinson 0.1 1 10 100 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 0.1 0.1 0.1 0.1 0.5 6.2 2 Nov-15 0.1 0.1 0.1 0.1 0.5 6.2 3 Jun-16 0.1 1.94 0.1 0.1 0 6.2 4 Nov-16 0.1 0.1 0.1 0.1 0 6.2 5 May-17 0.1 0.1 0.1 0.1 0 6.2 6 Jun-18 0.1 0.1 0.1 0 0 6.2 7 Jun-19 0.1 0.1 0 0.1 0 6.2 8 Jun-21 0.1 0.34 3.6 0.2 0 6.2 9 Jun-22 0.1 0 0.1 0.1 0.15 6.2 10 Jun-23 2.4 0 3.9 0.1 0 6.2 11 Apr-24 0.18 2 1.1 0.18 0.18 6.2 12 13 14 15 16 17 18 19 20 Coefficient of Variation:2.19 1.71 1.74 0.47 1.64 0.00 Mann-Kendall Statistic (S):17 -3 16 11 -5 0 Confidence Factor:89.1%56.0%87.5%77.7%61.9%45.1% Concentration Trend:No Trend No Trend No Trend No Trend No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. CADMIUM INTERMEDIATE WELLS CONCENTRATION (ug/L) GSI Environmental Inc., www.gsi-net.com GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis 22-Aug-24 Portland Cement Cadmium Intermediate Wells Kelsey Robinson 0.1 1 10 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:PWS P2M P3EA P3O P2EA Cleanup Goal Sampling Sampling Event Date 1 Jun-15 32.6 29.9 30.1 41 29.9 64 2 Nov-15 31.2 29.3 28.1 30.8 29.3 64 3 Jun-16 29.5 33.2 29.4 66.6 0 64 4 Nov-16 32 24.1 29.4 39.8 0 64 5 May-17 30.4 10.6 33.5 32.7 0 64 6 Jun-18 29.4 25.6 45 0 0 64 7 Jun-19 35.5 24.8 0 30.8 0 64 8 Jun-21 35 28 50 29 0 64 9 Jun-22 38 0 11 49 46 64 10 Jun-23 38 0 38 31 0 64 11 Apr-24 37 85 32 32 36 64 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.10 0.86 0.47 0.46 1.43 0.00 Mann-Kendall Statistic (S):24 -14 10 -10 0 0 Confidence Factor:96.4%84.0%75.3%75.3%45.1%45.1% Concentration Trend:Increasing Stable No Trend Stable No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water , 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. ARSENIC INTERMEDIATE WELLS CONCENTRATION (ug/L) GSI Environmental Inc., www.gsi-net.com GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis 22-Aug-24 Portland Cement Arsenic Intermediate Wells Kelsey Robinson 1 10 100 12/14 05/16 09/17 02/19 06/20 10/21 03/23 07/24 12/25 Co n c e n t r a t i o n ( u g / L ) Sampling Date PWS P2M P3EA P3O P2EA Cleanup Goal