Document 3QxbB5gEKVVnz2vx0LbRY2qen

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 02/04-05/2025 Drinking Water SDWA Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Camino Real Regional Utility Authority Camino Real Regional Utility Authority 4950 McNutt Rd Sunland Park, NM 88063 P.O. Box 429 Sunland Park, NM 88063 Dona Ana 575-589-1075 / 575-332-1940 Jose Carlos Crosby Executive Director, Board of Directors juancarloscrosby@donaanacounty.org System Classification PWS ID No.: Media Identifier Number: NAICS: SIC: Public Water Supply (PWS) NM3502507 NA 221310 4941 Personnel participating in inspection: Chelo Hall EPA Region 6 David Esparza EPA Region 6 Juan Carlos Crosby CRRUA Eric Lopez CRRUA Udell Vigil CRRUA Filiberto Aguirre CRRUA David Name CRRUA Tim Willy NMED Rocio Galvan NMED Inspector Inspector Executive Director Contracted Water Operator Water Operator Water Operator Procurement Compliance Officer Compliance Officer EPA Lead Inspector Signature/Date Hall, Chelo Chelo Hall Digitally signed by Hall, Chelo Date: 2025.04.29 12:58:57 -05'00' 04.29.2025 Date Supervisor Signature/Date RUBEN ALAYON-GONZALEZ Date: 2025.04.29 13:16:27 -05'00' Digitally signed by RUBEN ALAYON-GONZALEZ Ruben Alayon-Gonzalez Date 6ENFORM-019-R8.2 (02/12/2020) 1 Section I - INTRODUCTION Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 PURPOSE OF THE INSPECTION On February 4-5, 2025, the U.S. EPA Region 6 inspectors, Chelo Hall and David Esparza (hereafter the EPA Inspectors), conducted an announced Safe Drinking Water Act (SDWA) compliance inspection of the Camino Real Regional Utility Authority (CRRUA) Water System, Public Water Supply (PWS) ID No. NM3502507. The inspection began at approximately 8:30 am on February 4, 2025. The EPA Inspectors met with Mr. Juan Carlos Crosby, CRRUA Water Board Director, Mr. Eric Lopez, Bridel Facility Operations (contract operator), Mr. David Espinoza, CRRUA Financial Procurement, and three water system operators at the Opening Conference. Mr. Tim Willy and Ms. Rocio Garcia of the New Mexico Environment Department (NMED) attended. I, Chelo Hall, lead inspector, presented credentials to Mr. Crosby and informed him that this was an EPA inspection to determine the facility's compliance with the SDWA regulations, specifically, the Arsenic Rule, 40 CFR 141.62(b)(16) and 40 CFR 141.62(c)- the maximum contaminant level (MCL) of 0.010 mg/L, and best available treatment technology to ensure compliance, respectively. Also, EPA inspectors evaluated compliance with Section 1433 of the SDWA, "America's Water Infrastructure Act," (AWIA): Risk and Resilience and Emergency Response Plan, which includes Cyber Security. EPA inspectors made observations at the following PWS systems components: Four Arsenic Treatment Facilities (ATF) o Border Park ATF o Industrial Park ATF o Santa Teresa Park ATF o Sunland Park ATF Groundwater Wells (8 Active, 2 Inactive) Finished Water Storage Tanks (8 Total) Backwash Water Storage Tanks (3 Total) Absorption Ponds (4 Total) Drying Beds (3 Total) Ferric iron oxide (2 Vault Tank, 1 Tote) Caustic Media Cylinders (3 Total) Booster Pumps Stations (3 Total) Distribution System (4 Total) Operations and Maintenance System Records (Laboratory analysis reports, construction expenses, chemical expenses, etc) SYSTEM DESCRIPTION The System is a ground water system that provides service to 7,318 connections and an estimated population of 19,466 individuals, according to the New Mexico Safe Drinking Water Watch database. The System is a community water system as defined by 40 C.F.R., Part 141, Subpart A. The System consists of four arsenic treatment plants, listed above, that serves drinking water to the Dona Ana 2 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 County residents and parts of the City of Sunland Park, NM. In 2023, after ongoing noncompliance of the national arsenic MCL and challenges with the operations of the System, CRRUA retained Bridel Facility Operations, Eric Lopez, Level 4 certified water operator, to operate the treatment facilities and to provide training to the three current water operators. Currently, the Santa Teresa ATF, the Sunland Park ATF, and the Industrial Park ATF, pump raw water and disinfect at the entry point using gas-chlorine. Ferric chloride is injected to bind the arsenic in preparation of the filtration process. After the filtration process, caustic soda (sodium hydroxide) is used to raise the pH of drinking water to its origin of taste. The filtered backwash is piped (pumped) to storage tanks and released into absorption ponds/drying beds, and the finished water is boosted into storage tanks for distribution. (Please see Appendix 8 Arsenic Flow Chart Diagrams: Industrial Region, Santa Teresa Community, and Sunland Park.) The Border Entry ATF uses proprietary cartridge filters to remove arsenic instead of chemicals. This ATF maintains the lowest arsenic levels in comparison to the other three ATFs and serves a smaller population as well. Therefore, cartridges are more cost efficient than the chemicals used by the other CRRUA ATFs. (Please see Appendix 8 Arsenic Flow Chart Diagrams, Border Region Arsenic Treatment Facility.) The PWS is operated 5-days a week between 8 am to 5 pm, plus overtime as necessary. On the weekends, the hour of operations is between 8 am to 12 pm, plus overtime as necessary. The operators perform "ON Vitals" - the essential perimeters and indicators that ensure safe and potable water within compliance limits. The System recently implemented new Standard Operating Procedures (SOP) as required by NMED in the 2023 sanitary survey to test for the concentrations of arsenic prior to and after treatment. Section II - OBSERVATIONS EPA inspectors observed the following and/or the following information was provided or stated by CRRUA staff Border Entry Arsenic Treatment Facility (ATF), Appendix 1 Photo Log 1. There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. (Photos 3,4, and 5) 2. The air relief valve (ARV) had a small leak. (Photo 6) 3. The check valve at the ATF had a small leak. (Photo 7) 4. The concrete block that supported the check valve had corrosion due to leaks, causing the support system to deteriorate and weaken. (Photo 8) 5. The booster pump was inoperable, and it was stated there was no budget to repair major infrastructure. (Photo 9) 6. The backup power generator was inoperable, and it was stated there was no budget for major repairs. (Photo 10) 3 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 7. The seal at the foundation of the finished water storage tank (WST) had deteriorated and exposed to potential rust from water leakages and to surface contaminants from the surrounding soil. (Photo 11) 8. According to CRRUA, the finished WST was recently inspected by Tank Industry Consultants (TIC). The TIC report identified maintenance concerns to the interior of the tank. (Photo 12) 9. The finished WST had an unidentified label on the certified sample port. (Photo 13) 10. The perimeter security fence at the backwash drying bed had dirt erosion, creating an opening for vermin attraction. (Photo 14) 11. The finished WST had signs of paint flaking off, requiring preventative maintenance. (Photo 15) 12. The warning sign on the door to the gas-chlorine room was faded by the sun used to alert employees of the chemical dangers. (Photo 16) 13. The drainpipe at the finished WST was deteriorated, causing water leakages to divert to the foundation of the tank, potentially causing undermining of the tank. (Photo 17) 14. The pressure tank at the ATF had signs of paint flaking off, requiring preventative maintenance. (Photo 18) 15. A leak was identified above the backwash discharge pipeline. (Photo 19) 16. The ARV at the ATF was inoperable. (Photo 20) 17. A Lockout-Tag Out identification procedure was lacking at the inactivated Well 2B. (Photo 21) (On 4/8/2025, CRRUA documented that a Lockout-Tag Out procedure was posted. See Appendix 7.) 18. The media tank valve was observed leaking, and it was stated that no monies were in the budget to purchase a new valve. (Photo 22) (On 2/19/2025, CRRUA documented that the valve was temporary replaced to stop the leaking until a permanent one is purchased. See Appendix 7.) 19. The Human Machine Interface (HMI) alarm showed a high-pressure differential at the ATF. (Photo 23,24) (On 4/8/2025, CRRUA documented that the HMI alarm was recalibrated to clear the pressure differential. See Appendix 7.) Santa Teresa Community Arsenic Treatment Facility (ATF), Appendix 2 Photo Log 20. There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. (Photo 2) 21. The chlorine injection pump was leaking. (Photo 3) 22. There was dried-up sulfuric acid remaining on the exterior of the static mixer after repair. (Photo 4) 23. There were non-industrial straps affixed to the main ATF piping. (Photo 5) 24. The caustic injector on the finished pipeline had a leak. (Photo 6) 25. The backflow support stands were erroded indicative of previous leaks. (Photo 7) 26. The ATF Process Flow Chart had lacking information about the sequence of flow processes to remove arsenic. (Photo 8) 27. Previous sulfuric acid overfills/leaks corroded the exterior wall to the ATF. (Photo 9) 28. Previous ferric chloride corroded the exterior wall to the wall to the ATF. (Photo 10) 29. Emergency eyewash continued to run after it was turned on. (Photo 11) 30. Caustic soda was spilled on the outside wall to the ATF. (Photo 12) 31. The mesh screen on the drainpipe was in disrepair and subject to backflow contaminants. (Photo 13) 32. The splash pad to the finished WST had eroded allowing potential undermining of the foundation. (Photo 14) 4 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 33. Vagrant vegetation growing around the drying bed of the ATF. (Photo 15) 34. The emergency eyewash outside the ATF by the filter media tanks was in-operable. (Photo 16) 35. The sand-separator was mounted on a non-industry stanchion, i.e. a 2x4 board. (Photo 17) 36. The chemical spill kit was lacking tools and devices designed to contain and seal leaks. (Photo 18) Sunland Park Arsenic Treatment Facility (ATF), Appendix 3 Photo Log 37. The perimeter security fencing was in disrepair and exhibited extensive erosion in multiple locations. (Photo 2,3) 38. There was visible vagrant vegetation growth around the drying beds, a potential avenue for vermin attraction. (Photo 4) 39. There was a pile of previously removed arsenic treatment media staged on land surface. (Photo 5) 40. The drainage pipeline to the ATF indicated potential blockage, causing spillage onto the land surface. (Photo 6) 41. The ATF Process Flow Chart had lacking information about the sequence of flow processes to remove arsenic. (Photo 7) 42. An onsite arsenic sample was tested for the concentration before and after treatment. The sample result was 4 ppb after treatment, under the national maximum contaminant level. (Photo 8) 43. Pump #1 at the ATF was in-operable on the day of the inspection. (Photo 9) 44. The emergency eyewash outside the ATF was lacking neccessary appurtenances. (Photo 10) 45. There was visible evidence of previous ferric chloride overfills or spillage inside the shed. (Photo 11) 46. There was visible evidence of previous sulfuric acid overfills or spillage inside the shed. (Photo 12) 47. There was visible evidence of previous caustic soda overfills or spillage inside the shed. (Photo 13) 48. Remnants of an old security light outside the ATF were not cleared from the premise, creating a safety risk and an attraction for vermin. (Photo 14) Industrial Park Arsenic Treatment Facility (ATF), Appendix 4 Photo Log 49. The caustic soda line had a small leak. (Photo 2) 50. The finished WST "target" gauge did not have numbers to measure the interior of the WST water levels. (Photo 3) 51. The emergency eyewash was inoperable and lacking necessary appurtenances. (Photo 4) 52. The safety warning signs on the gas-chlorine door were worn out and damaged by the sun. (Photo 5) 53. Wellhead #5 had damages caused during the repairs of the well. (Photo 6) 54. The chemical spill kit was lacking tools and devices designed to contain and seal leaks. (Photo 7) 55. The backflow preventer, located inside the ATF building, gushed water after the emergency eyewash outside the ATF building, was turned on. (Photo 8) 56. There was visible evidence of previous caustic soda overfills or spillage inside the shed. (Photo 9) 57. There was visible evidence of previous sulfuric acid overfills or spillage inside the shed. (Photo 10) 5 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 58. The Industrial Park ATF HMI screen did provide secure passcodes to access to the panel. (Photo 11) 59. The ATF Process Flow Chart lacked information about the sequence of flow processes to remove arsenic. (Photo 12) Operations and Maintenance Activities 60. CRRUA hired Bridel Facility Operations in 2023 to operate and oversee the ATFs. 61. CRRUA hired a "House Cleaning/Janitorial Company" to mop and clean floors and maintain a clean facility. 62. The SOPs were revised inclusive of written instructions outlining the steps for performing the specific tasks associated with the ATF's treatment processes and operations. 63. A Preventive and Maintenance (PM) Plan was implemented to maintain and service the equipment, machinery, prevent breakdowns, reduce-downtime, and extend their operational lifespan. 64. CRRUA has an operations and maintenance budget for the ATFs, but not for the capital infrastructure repairs. 65. The System had a partial line flushing program for portions of the City of Sunland Park through the fire department, but not for the County of Dona Ana, but does not have a valve exercising program for either entity. Section III - AREAS OF CONCERN EPA inspectors observed the following areas of concern (AC): Border Booster Arsenic Treatment Facility, Appendix 1 Photo Log AC-1. AC-2. AC-3. AC-4. AC-5. AC-6. AC-7. AC-8. AC-9. AC-10. There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. (Photos 3,4,5) The ARV at the ATF pipeline had a leak. (Photo 6) The check valve at the ATF pipeline had a leak. (Photo 7) The concrete block that supports the check valve had corrosion due to leaks, causing the support system to deteriorate and weaken. (Photo 8) The booster pump was inoperable, hindering the ability to supply water on demand. There is no budget to repair major infrastructure. (Photo 9) The backup power generator was inoperable, causing no power during power outages. There is no budget to repair major infrastructure. (Photo 10) The protective seal to the foundation of the finished WST had deteriorated and exposed to potential rust from water leakages and to surface water contaminants from the surrounding soil. (Photo 11) The finished WST had signs of paint flaking off, potentially requiring preventative maintenance in the interior and exterior of the tank. According to CRRUA, the WST was recently inspected by Tank Industry Consultants (TIC). The report indicted maintenance concerns to the interior of the tank. (Photo 12,15) The warning sign on the door to the gas-chlorine room was faded by the sun. (Photo 16) The drainpipe at the finished WST was deteriorated, causing water leakages to divert to the foundation of the tank and to cause dirt erosion to the premise of the tank. (Photo 17) 6 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 AC-11. AC-12. AC-13. AC-14. AC-15. AC-16. The pressure tank showed signs of preventive maintenance, potentially requiring preventative maintenance in the interior and exterior of the tank. (Photo 18) A leak was observed above the backwash discharge pipeline, but not easily observed in the photo. (Photo 19) The ARV at the ATF was in-operable. (Photo 20) A Lockout-Tag Out procedure was lacking at the inactivated Well 2B. (Photo 21) (On 4/8/2025, CRRUA documented that a Lockout-Tag Out procedure was posted. See Appendix 7.) The valve to the media tank had a leak. (Photo 22) (On 2/19/2025, CRRUA documented that the valve was temporary replaced to stop the leaking until a permanent one is purchased. See Appendix 7.) There was not money in the budget to purchase a new valve. The HMI alarm showed a high-pressure differential at the ATF. (Photo 23,24) (On 4/8/2025, CRRUA documented that the HMI alarm was recalibrated to clear the pressure differential. See Appendix 7.) Santa Teresa Community Arsenic Treatment Facility (ATF), Appendix 2 Photo Log AC-17. AC-18. AC-19. AC-20. AC-21. AC-22. AC-23. AC-24. AC-25. AC-26. AC-27. AC-28. AC-29. AC-30. AC-31. There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. (Photo 2) The chlorine injection inline pump was leaking on the day of the inspection. (Photo 3) There were non-industrial straps affixed to the main ATF piping. (Photo 5) The caustic injector on the finished pipeline was leaking. (Photo 6) The backflow support stands were erroded. (Photo 7) The ATF Process Flow Chart had lacking information about the sequence of flow processes. (Photo 8) Previous sulfuric acid overfills/spills was corroding the exterior wall to the ATF. (Photo 9) The emergency eyewash continued run after it was turned on. (Photo 11) Caustic soda was seen on the outside wall to the ATF. (Photo 12) The mesh screen on the drainpipe was in disrepair. (Photo 13) The splash pad to the finished water storage tank had gaps/openings that allowed overflow to erode the base of the tank. (Photo 14) Vagrant vegetation was growing around the drying bed of the ATF. (Photo 15) The emergency eyewash outside the ATF wall, by the filter media tanks, was in-operable. (Photo 16) The sand-separator was mounted on a non-industry stanchion, i.e. a 2x4 board. (Photo 17) The chemical spill kit was lacking tools and devices designed to contain and seal leaks. (Photo 18) Sunland Park Arsenic Treatment Facility (ATF), Appendix 3 Photo Log AC-32. AC-33. AC-34. AC-35. The perimeter security fencing was in disrepair and exhibited extensive erosion in multiple locations. (Photo 2,3) There was visible vagrant vegetative growth around the drying beds, a potential avenue for vermin attraction. (Photo 4) There was previously removed arsenic treatment media staged on land surface. (Photo 5) The drainage pipeline to the ATF indicated potential blockage, causing spillage onto the land surface. (Photo 6) 7 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 AC-36. AC-37. AC-38. AC-39. AC-40. AC-41. AC-42. AC-43. AC-44. AC-45. AC-46. The ATF Process Flow Chart had lacking information about the sequence of flow processes.. (Photo 7) Pump #1 at the ATF was in-operable. (Photo 9) The emergency eyewash outside the ATF was lacking necessary appurtenances. (Photo 10) There was visible evidence of previous ferric chloride overfills or spillage inside the shed. (Photo 11) There was visible evidence of previous sulfuric acid overfills or spillage inside the shed. (Photo 12) There was visible evidence of previous caustic soda overfills or spillage inside the shed. (Photo 13) Remnants of an old security light outside the ATF were not cleared from the premise, creating a safety risk and an attraction for vermin. (Photo 14) The pH reagents/buffers had lacking labels such as the identity of the contents, opening dates, date of receipt and expiration dates. (Photo 12) The seal to the foundation of the recycled WST exhibited deterioration and exposed to potential rust from water leakages and to surface contaminants from the surrounding soil. (Photo 13) Replaced and/or outdated electrical panels and/or debris creating a potenial avenue for vermin attraction, or a slip, trip and fall hazard was observed. (Photo 14) The static mixer inside the main water piping operated on an inconsistent basis effecting the proper mixing of gases and media. (Photo 16) Industrial Park Arsenic Treatment Facility (ATF), Appendix 4 Photo Log AC-47. AC-48. AC-49. AC-50. AC-51. AC-52. AC-53. AC-54. AC-55. AC-56. AC-57. AC-58. AC-59. Wellhead #5 received damages during the repairs of the well. (Photo 1) The electrical switch to the ventilation fan and heater inside the gas chlorine room was inoperable. (Photo 2) The self contained breathing appuratus (SCBA) equipment was out of date. (Photo 3) The perimeter security lighting at the ATF was functioning at inappropriate times. (Photo 4) The finished WST "target" gauge did not have numbers to measure interior WST water levels. (Photo 5) The mesh screen on the ARV to the filter tank was in disrepair. (Photo 6) The Human Machine Interface (HMI) screen does not provide secure passwords to access the panel. (Photo 7) The tie-down straps securing the cylindrical gas chlorine tanks exhibited signs of aging. (Photo 8) The seal to the foundation of the finished water storage tank has deteriorated and exposed to potential rust from water leakages and to surface contaminants from the surrounding soil potentially causing leaks and even contamination of the surrounding soil. (Photo 9) The electrical outlet box adjacent to the caustic media tank was exposed and unprotected. (Photo 10) The visible safety warning signage on the gas chlorine door were worn out and damaged. (Photo 11) The gas-chlorine room is used as a storage room for janitorial equipment. (Photo 12) Appropriate level fire extinguishers were lacking. (Photo 13) Operations and Maintenance Activities AC-60. The PWS had a flushing line program for the Sunland Park ATF, but does not have one for the Border Park ATF, the Santa Teresa Park ATF, and the Border Park ATF. 8 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 AC-61. AC-62. AC-63. AC-64. The CRRUA Director pointed out that approximately 65% of the isolation valves had been identified in the distribution system, but they did not have a valve exercising program. CRRUA hired a contractor to identify all the valves remaining at the ATFs. The PWS had a Preventive and Maintenance Plan (PMP) but was deficient for the wells and for the backup generators. While CRRUA has a budget to maintain the ATFs, the budget does not include monies for equipment failures or other system components. EPA Inspectors conducted a closing conference at the CRRUA's Sunland Park ATF at approximately 1:15 pm on February 05, 2025, for the inspection. During the closing conference, some of the areas of concern noted during the inspection were discussed. Section IV - FOLLOW UP The following information was received by EPA after February 04, 2025, after exiting the System, Appendix 6: (Note: Not every document is included in this report due to sensitive information.) CRRUA submitted arsenic laboratory results from October 2023 thru March 2025. CRRUA provided updates to repairs to observations made during the inspection. CRRUA developed a Flush Line Program for the Booster Station. CRRUA addressed an emergency spill on site caused by another company. Total coliform samples were collected to ensure that the water supply was safe to drink before bringing back online. CRRUA Water System Updates were submitted. CRRUA and EPA Correspondences were received. Standard Operating Procedures for Arsenic Standard Operating Procedure for Industrial Arsenic Process Water pH Probe Calibration Standard Operating Procedure for Sunland Park Arsenic Auto Backwash of System Standard Operating Procedure for Santa Teresa Community ARSENIC Raw Water pH Probe Calibration Arsenic Facility Work Order on Chemical Refills or Equipment Failures Section V - LIST OF APPENDICES Appendix 1 - Photo Log - 24 Photos Border Booster Arsenic Treatment Facility 02/04/2025 Appendix 2 - Photo Log - 18 Photos Santa Teresa Community Treatment Facility 02/04/2025 Appendix 3 - Photo Log - 14 Photos Sunland Park Treatment Facility 02/05/2025 Appendix 4 - Photo Log - 12 Industrial Park Treatment Facility 02/05/2025 Appendix 5 - Bridel Facility Operations, Level 4 Water Operator Certification Appendix 6 - Follow-up: CRRUA's Document Submittal Post EPA Inspection 9 Camino Real Regional Utility Authority PWS ID No: NM3502507 Inspection Date 02/04-05/2025 Appendix 7 - Opening and closing conference sheets Appendix 8 - CRRUAs Arsenic Plant Process Flow Diagrams 10 Camino Real Regional Water Authority PWS ID No.: NM3502507 Date of Inspection 02/4-5/2025 Appendix 1 Border Entry Arsenic Treatment Facility Photograph Log UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 1 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Border Entry Arsenic Treatment Facility Date Taken: 2/4/2025 11:24 am (IMG_0108.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 2 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Border Entry Water Treatment Facility Date Taken: 2/4/2025 11:26 am (IMG_0109.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 3 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. Date Taken: 2/4/2025 11:29 am (IMG_0110.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 4 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. Date Taken: 2/4/2025 11:29 am (IMG_0112.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 5 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. Date Taken: 2/4/2025 11:30 am (IMG_0114.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 6 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The ARV had a small leak. Date Taken: 2/4/2025 11:38 am (IMG_0116.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 7 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The check valve at the ATF had a small leak. Date Taken: 2/4/2025 11:40 am (IMG_0117.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 8 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The concrete block that supports the check valve had corrosion due to leaks, causing the support system to deteriorate and weaken. Date Taken: 2/4/2025 11:50 am (IMG_0119.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 9 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The booster pump was in-operable, hindering the ability to supply water on demand. There is no budget to repair major infrastructure. Date Taken: 2/4/2025 11:50 am (IMG_0120.JPG) Photographed by David Esparza ` UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 10 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The backup power generator was broken and inoperable, and no budget set aside to repair. Date Taken: 2/4/2025 11:55 am (IMG_0122.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 11 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The seal to the foundation of the finished water storage tank had deteriorated, creating gaps around the tank. Date Taken: 2/4/2025 11:57 am (IMG_0123.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 12 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM According to CRRUA, the finished water storage tank was recently inspected by Tank Industry Consultants (TIC). The TIC report identified a list of maintenance concerns found in the interior of the tank. Date Taken: 2/4/2025 11:58 am (IMG_0124.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 13 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The finished water storage had an unidentifiable label on the certified sample port. On 2/19/2025, CRRUA reported that this was not a sampling port and a brass cap will be installed to avoid confusion. Date Taken: 2/4/2025 12:00 pm (IMG_0125.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 14 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The perimeter security fence at the backwash drying bed had dirt erosion, creating an opening for vermin attraction. Date Taken: 2/4/2025 12:02 pm (IMG_0126.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 15 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The finished treated water storage tank had signs of paint flaking off the tank and requiring preventive maintenance. Date Taken: 2/4/2025 12:03 pm (IMG_0127.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 16 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The warning sign on the door to the gas-chlorine room was faded by the sun used to alert employees of the chemical dangers. Date Taken: 2/4/2025 12:04 pm (IMG_0128.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 17 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The drainpipe to the finished WST was deteriorated. causing water leakages to divert to the foundation of the tank and to cause dirt erosion to the premise of the tank. Date Taken: 2/4/2025 12:06 pm (IMG_0129.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 18 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The pressure tank showed signs of preventive maintenance. Date Taken: 2/4/2025 12:07 pm (IMG_0130.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 19 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM A leak was identified located above the backwash discharge pipeline above not seen in this picture. Date Taken: 2/4/2025 12:11 pm (IMG_0134.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 20 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The air relief valve at the ATF was in-operable. Date Taken: 2/4/2025 12:12 pm (IMG_0135.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 21 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM A Lockout-Tag Out identification warning sign was missing at the inactivated Well 2B. (On 4/8/2025, CRRUA documented that a Lockout-Tag Out sign was posted. See Appendix 7.) Date Taken: 2/4/2025 12:13 pm (IMG_0136.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 22 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The media tank valve was observed leaking. (On 2/19/2025, CRRUA documented that the valve was temporary replaced to stop the leaking until a permanent one is purchased. See Appendix 7.) There was not money in the budget to purchase a new valve. Date Taken: 2/4/2025 12:20 pm (IMG_0137.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 23 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The Human Machine Interface (HMI) alarm showed a high differential pressure at the ATF. (On 4/8/2025, CRRUA documented that the HMI alarm was recalibrated to clear the pressure differential. See Appendix 7.) Date Taken: 2/4/2025 12:23 pm (IMG_0139.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 24 Location: Border Entry Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The HMI alarm showed a high differential pressure at the ATF. (On 4/8/2025, CRRUA documented that the HMI alarm was recalibrated to clear the pressure differential. See Appendix 7.) Date Taken: 2/4/2025 12:24 pm (IMG_0140.JPG) Photographed by David Esparza Camino Real Regional Water Authority PWS ID. No. NM3502507 Inspection Date 02/4-5/2025 Appendix 2 Santa Teresa Community Arsenic Treatment Facility Photograph Log UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 1 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Santa Teresa Community Arsenic Treatment Facility Entry Date Taken: 2/4/2025 2:09 pm (IMG_0141.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 2 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was vagrant vegetation growth in and around the site, creating a potential for vermin attraction. Date Taken: 2/4/2025 2:11 pm (IMG_0142.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 3 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The chlorine injection inline pump had a small leak depicted at the day of the inspection. Date Taken: 2/4/2025 2:24 pm (IMG_0144.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 4 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was sulfuric acid left over after repairs to the leak. Date Taken: 2/4/2025 2:25 pm (IMG_0145.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 5 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There were non-industrial strap bands securing the ATF pipelines. Date Taken: 2/4/2025 2:26 pm (IMG_0146.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 6 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The caustic injector on the finished pipeline had a leak. Date Taken: 2/4/2025 2:30 pm (IMG_0148.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 7 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The backflow support stands were erroded caused by leaks. Date Taken: 2/4/2025 2:33 pm (IMG_0151.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 8 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The ATF Process Flow Chart had missing information about the sequence of flow processes to remove arsenic. Date Taken: 2/4/2025 2:43 pm (IMG_0162.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 9 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Caustic media was corroding the exterior wall of the ATF due to a spill. Date Taken: 2/4/2025 2:50 pm (IMG_0163.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 10 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Ferric chloride corroded the exterior wall of the ATF due to a spill. Date Taken: 2/4/2025 2:50 pm (IMG_0164.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 11 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The emergency eyewash continued to run after it was turned off. Date Taken: 2/4/2025 2:50 pm (IMG_0165.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 12 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Caustic media was seen outside. Date Taken: 2/4/2025 2:51 pm (IMG_0166.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 13 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The mesh screen on the drainpipe was in disrepair and subject to backflow contaminants. Date Taken: 2/4/2025 2:53 pm (IMG_0172.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 14 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The splash pad to the finished WST had gaps/openings eroded by water leakages allowing the foundation of the tank susceptible to rust and surface water contamination. Date Taken: 2/4/2025 2:55 pm (IMG_0177JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 15 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Vagrant vegetation growing around the drying bed of the ATF. Date Taken: 2/4/2025 3:02 pm (IMG_0180.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 16 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The emergency eyewash was in-operable. Date Taken: 2/4/2025 3:07 pm (IMG_0183.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 17 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The sand-separator was mounted on a 2x4 board and an unreliable piece of equipment to hold the separator. (Note: Photo was cropped.) Date Taken: 2/4/2025 3:23 pm (IMG_0188.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 18 Location: Santa Teresa Community Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The chemical spill kit was missing tools and devices designed to contain and seal leaks. Date Taken: 2/4/2025 3:24 pm (IMG_0189.JPG) Photographed by David Esparza Camino Real Regional Water Authority PWS ID No.: NM3402507 Inspection Date 02/4-5/2025 , Appendix 3 Sunland Park Arsenic Treatment Facility Photograph Log NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 1 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Sunland Park Arsenic Treatment Facility Entry Date Taken: 2/5/2025 10:01 am (IMG_0194.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 2 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The perimeter security fencing was in disrepair and exhibited extensive erosion in multiple locations. (Note: This photo was cropped.) Date Taken: 2/5/2025 10:11 am (IMG_0196.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 3 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The perimeter security fence was falling apart and had large erosion gaps below fencing. Date Taken: 2/5/2025 10:11 am (IMG_0197.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 4 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was visible vagrant vegetative growth around the Drying Beds, a potential avenue for vermin attraction. Date Taken: 2/5/2025 10:12 am (IMG_0198.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 5 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was a pile of removed treated media. Date Taken: 2/5/2025 10:13 am (IMG_0199.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 6 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The drainage pipeline to the ATF indicates there is a problem, causing spillage to the surface of the ground. Date Taken: 2/5/2025 10:14 am (IMG_0200.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 7 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The ATF Process Flow Chart had missing information about the sequence of flow processes to remove arsenic. Date Taken: 2/5/2025 10:33 am (IMG_0202.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 8 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM A demonstration of an arsenic sample being tested for the concentration before and after treatment. This sample read a result of 4 ppb after treatment - below the compliance maximum contaminant level of 10 ppb. Date Taken: 2/5/2025 10:40 am (IMG_0203.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 9 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Pump #1 was in-operable at the time of the inspection. Date Taken: 2/5/2025 10:49 am (IMG_0204.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 10 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The emergency eyewash station was inoperable and was missing appurtenances. Date Taken: 2/5/2025 11:00 am (IMG_0205.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 11 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was visible evidence of previous ferric chloride overfills or spillage inside the shed. Date Taken: 2/5/2025 11:02 am (IMG_0206.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 12 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was sulfuric acid spilled on the wall, behind the front pipes. Date Taken: 2/5/2025 11:03 am (IMG_0208.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 13 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was visible evidence of previous caustic soda overfills and spillage inside the shed. Date Taken: 2/5/2025 11:03 am (IMG_0209.JPG) Photographed by David Esparza NITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 14 Location: Sunland Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Remnants of an old light outside the ATF were not cleared from the premise, creating a safety risk and an attraction for vermin. Date Taken: 2/5/2025 11:08 am (IMG_0210.JPG) Photographed by David Esparza Camino Real Regional Water Authority PWS ID No.: NM3502507 Inspection Date 02/4-5/22025 Appendix 4 Industrial Park Arsenic Treatment Facility Photograph Log UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 1 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Industrial Park Arsenic Treatment Facility Date Taken: 02/5/2025 11:34 am (IMG_0211.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 2 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The threated collar to the caustic soda line had a small leak. Date Taken: 02/5/2025 11:36 am (IMG_0212.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 3 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The finished WST "target" gauge did not have numbers to measure the interior WST water levels. Date Taken: 02/5/2025 12:15 pm (IMG_0227.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 4 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The emergency eyewash was inoperable and lacking necessary appurtenances. Date Taken: 02/5/2025 12:11 pm (IMG_0255.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 5 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The safety warning signs on the gas-chlorine door were worn out and damaged by the sun. Date Taken: 02/5/2025 12:08 pm (IMG_0224.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 6 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM ATF Wellhead #5 was renovated but the insulation was left incomplete. Date Taken: 02/5/2025 12:07 pm (IMG_0223.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 7 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The chemical spill kit was missing tools and devices designed to contain and seal leaks. Date Taken: 02/5/2025 12:05 am (IMG_0222.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 8 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The backflow preventer, located inside the ATF building, gushed water after the emergency eyewash, located outside the ATF building, was turned on from the outside. Date Taken: 02/5/2025 12:00 pm (IMG_0221.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 9 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was visible evidence of previous caustic soda overfills or spillage inside the shed. Date Taken: 02/5/2025 11:57 am (IMG_0220.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 10 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM There was visible evidence of previous sulfuric acid overfills or spillage inside the shed. Date Taken: 02/5/2025 11:56 am (IMG_0219.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 11 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM Industrial Park ATF Human Machine Interface (HMI) panel does not have passcodes to secure access. Date Taken: 02/5/2025 11:39 am (IMG_0218.JPG) Photographed by David Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 12 Location: Industrial Park Arsenic Treatment Facility City: Sunland Park County: Dona Ana State: NM The ATF Process Flow Diagram had missing information to the sequence of the flow process to remove arsenic. Date Taken: 02/5/2025 11:38 am (IMG_0215.JPG) Photographed by David Esparza Camino Real Regional Utility Authority (NM3502507) Inspection Date 02/03-04/2025 Appendix 5 Bridel Facility Operations - Eric R. Lopez Level 4 Certified Water Operator Camino Real Regional Utility Authority (NM3502507) Inspection Date 02/03-04/2025 Camino Real Regional Utility Authority PWS ID. #NM3502507 Inspection Date 02/4-5/2025 Appendix 6 Follow-up: CRRUA's Documents Submittal Post EPA Inspection Sunland Park ATF Industrial Arsenic Industrial Arsenic Santa Teresa Community ATF Date 12/1/2024 9:06 12/2/2024 6:40 12/3/2024 9:04 12/4/2024 9:10 12/5/2024 14:00 12/7/2024 9:45 12/7/2024 10:25 12/8/2024 10:02 12/9/2024 6:35 12/10/2024 10:40 12/11/2024 10:50 12/12/2024 11:00 12/13/2024 9:53 12/14/2024 9:40 12/15/2024 9:30 12/16/2024 8:40 12/17/2024 9:20 12/18/2024 1:25 12/19/2024 11:10 12/20/2024 10:17 12/21/2024 9:40 12/22/2024 9:25 12/23/2024 9:00 12/24/2024 10:09 12/25/2024 10:20 12/26/2024 9:30 12/29/2024 9:00 12/30/2024 9:40 12/31/2024 8:00 Arsenic Field Test Results: Finish n/a <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a n/a <4 n/a <4 n/a n/a <4 n/a Date 1/1/2025 10:02 1/2/2025 8:50 1/3/2025 8:30 1/4/2025 6:34 1/5/2025 9:56 1/6/2025 9:10 1/7/2025 8:40 1/8/2025 10:04 1/9/2025 8:50 1/10/2025 9:48 1/11/2025 10:50 1/12/2025 11:30 1/13/2025 8:50 1/14/2025 8:50 1/15/2025 8:36 1/15/2025 8:36 1/16/2025 8:40 1/17/2025 8:30 1/18/2025 7:15 1/19/2025 7:40 1/20/2025 11:10 1/21/2025 10:00 1/22/2025 11:02 1/23/2025 1:15 1/24/2025 8:30 1/25/2025 11:15 1/26/2025 9:40 1/27/2025 8:40 1/28/2025 8:40 1/29/2025 7:20 Arsenic Field Test Results: Finish <4 n/a <4 <4 n/a <4 n/a <4 n/a <4 n/a n/a <4 n/a <4 <4 n/a n/a n/a n/a n/a n/a <4 n/a <4 n/a n/a <4 n/a 8 Date 1/1/2025 7:20 1/2/2025 9:42 1/3/2025 10:44 1/4/2025 7:08 1/5/2025 7:30 1/6/2025 8:00 1/7/2025 11:20 1/8/2025 7:55 1/8/2025 7:55 1/9/2025 8:40 1/10/2025 9:00 1/11/2025 9:00 1/12/2025 9:40 1/13/2025 7:48 1/14/2025 10:34 1/15/2025 7:45 1/16/2025 9:31 1/17/2025 10:00 1/18/2025 10:50 1/19/2025 11:20 1/20/2025 10:12 1/21/2025 9:48 1/22/2025 9:10 1/23/2025 10:15 1/25/2025 8:45 1/26/2025 9:00 1/27/2025 8:00 1/28/2025 11:05 1/29/2025 7:45 1/29/2025 7:45 1/30/2025 10:00 1/31/2025 10:15 Arsenic Field Test Results: Finish <4 n/a <4 n/a n/a <4 n/a <4 <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a n/a n/a n/a <4 n/a n/a n/a <4 10 <4 <4 n/a <4 Date 1/1/2025 9:10 1/2/2025 9:06 1/3/2025 9:04 1/4/2025 8:42 1/5/2025 8:25 1/6/2025 6:30 1/7/2025 11:30 1/8/2025 7:00 1/9/2025 10:57 1/10/2025 0:33 1/11/2025 9:48 1/12/2025 10:20 1/13/2025 6:45 1/14/2025 1/15/2025 6:45 1/16/2025 10:38 1/17/2025 8:57 1/18/2025 10:15 1/19/2025 10:45 1/20/2025 8:45 1/21/2025 2:10 1/22/2025 1:30 1/23/2025 8:49 1/24/2025 8:58 1/25/2025 8:10 1/26/2025 8:05 1/27/2025 6:40 1/28/2025 9:10 1/29/2025 6:30 1/30/2025 8:41 1/31/2025 9:35 Arsenic Field Test Results: Finish <4 n/a <4 n/a n/a <4 <4 <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a n/a n/a <4 <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 Sunland Park ATF Industrial Arsenic Industrial Arsenic Santa Teresa Community ATF Date 12/1/2024 9:06 12/2/2024 6:40 12/3/2024 9:04 12/4/2024 9:10 12/5/2024 14:00 12/7/2024 9:45 12/7/2024 10:25 12/8/2024 10:02 12/9/2024 6:35 12/10/2024 10:40 12/11/2024 10:50 12/12/2024 11:00 12/13/2024 9:53 12/14/2024 9:40 12/15/2024 9:30 12/16/2024 8:40 12/17/2024 9:20 12/18/2024 1:25 12/19/2024 11:10 12/20/2024 10:17 12/21/2024 9:40 12/22/2024 9:25 12/23/2024 9:00 12/24/2024 10:09 12/25/2024 10:20 12/26/2024 9:30 12/29/2024 9:00 12/30/2024 9:40 12/31/2024 8:00 Arsenic Field Test Results: Finish n/a <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a n/a <4 n/a <4 n/a n/a <4 n/a Date 1/1/2025 10:02 1/2/2025 8:50 1/3/2025 8:30 1/4/2025 6:34 1/5/2025 9:56 1/6/2025 9:10 1/7/2025 8:40 1/8/2025 10:04 1/9/2025 8:50 1/10/2025 9:48 1/11/2025 10:50 1/12/2025 11:30 1/13/2025 8:50 1/14/2025 8:50 1/15/2025 8:36 1/15/2025 8:36 1/16/2025 8:40 1/17/2025 8:30 1/18/2025 7:15 1/19/2025 7:40 1/20/2025 11:10 1/21/2025 10:00 1/22/2025 11:02 1/23/2025 1:15 1/24/2025 8:30 1/25/2025 11:15 1/26/2025 9:40 1/27/2025 8:40 1/28/2025 8:40 1/29/2025 7:20 Arsenic Field Test Results: Finish <4 n/a <4 <4 n/a <4 n/a <4 n/a <4 n/a n/a <4 n/a <4 <4 n/a n/a n/a n/a n/a n/a <4 n/a <4 n/a n/a <4 n/a 8 Date 1/1/2025 7:20 1/2/2025 9:42 1/3/2025 10:44 1/4/2025 7:08 1/5/2025 7:30 1/6/2025 8:00 1/7/2025 11:20 1/8/2025 7:55 1/8/2025 7:55 1/9/2025 8:40 1/10/2025 9:00 1/11/2025 9:00 1/12/2025 9:40 1/13/2025 7:48 1/14/2025 10:34 1/15/2025 7:45 1/16/2025 9:31 1/17/2025 10:00 1/18/2025 10:50 1/19/2025 11:20 1/20/2025 10:12 1/21/2025 9:48 1/22/2025 9:10 1/23/2025 10:15 1/25/2025 8:45 1/26/2025 9:00 1/27/2025 8:00 1/28/2025 11:05 1/29/2025 7:45 1/29/2025 7:45 1/30/2025 10:00 1/31/2025 10:15 Arsenic Field Test Results: Finish <4 n/a <4 n/a n/a <4 n/a <4 <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a n/a n/a n/a <4 n/a n/a n/a <4 10 <4 <4 n/a <4 Date 1/1/2025 9:10 1/2/2025 9:06 1/3/2025 9:04 1/4/2025 8:42 1/5/2025 8:25 1/6/2025 6:30 1/7/2025 11:30 1/8/2025 7:00 1/9/2025 10:57 1/10/2025 0:33 1/11/2025 9:48 1/12/2025 10:20 1/13/2025 6:45 1/14/2025 1/15/2025 6:45 1/16/2025 10:38 1/17/2025 8:57 1/18/2025 10:15 1/19/2025 10:45 1/20/2025 8:45 1/21/2025 2:10 1/22/2025 1:30 1/23/2025 8:49 1/24/2025 8:58 1/25/2025 8:10 1/26/2025 8:05 1/27/2025 6:40 1/28/2025 9:10 1/29/2025 6:30 1/30/2025 8:41 1/31/2025 9:35 Arsenic Field Test Results: Finish <4 n/a <4 n/a n/a <4 <4 <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 n/a n/a n/a <4 <4 n/a <4 n/a n/a <4 n/a <4 n/a <4 Camino Real Regional Water System (CRRUA) 025-07 Arsenic Values in ug/L 2024-2025 Period Arsenic MCL = 10 ug/L Santa Teresa Community Industrial Sunland Park Arsenic Park Arsenic Border Arsenic Treatment Treatment Storage Sample Date Treatment Plant Plant 1/9/2024 17 Plant 11 (STBC) 36 12 4/3/2024 5 6 7 3 7/30/2024 9 5 4 3 10/22/2024 6 5 6 6 1/28/2025 6.5 5.7 7.1 4  #$%&"'(#)*("( ! #$%&$$ "'( " ,*- .$%& ,* "% ! #$3%$$ "'( " ,*- .$3% ,* "% ! #$43&$& "'( " ,*- .$43& ,* "%  2 , +   +  0 " / &, 2 , +   +  0 " / &, 2 , +   + - 0 " / &, 1  !" 2 3 " )* ) +, ! " 4 1 . 5 6 1 .    ! " " )* ) +, 7 1 . 8 9 1 .    ! " 10 " )* ) +, 11 1 . 1.   ! -#$&5$, "'( " ,*- .$%& ,* "% -  0 " . +  -2 " )* ) .6 "! " - .$&5 / &, " " /&/&  /0 ,*8 /&0&  7. ! #$&5%, "'( " ,*- .$%& ,* "% 2 , +   +0 0 " / &, ! " " )* ) .6 "! " - .$&5 1 . 1. 1 ! #33$ "'( " ,*- .$3% ,* "%  +0 0 " 2 , +   +/ 0 " / &, "2 " )* ) .6 "! " - .$&5 1 . 1.  - / ! #33$ "'( " ,*- .$3% ,* "%  +0 0 " 2 , +   + 0 " / &, "2 " )* ) .6 "! " - .$&5 1 . 1. 0 - /  ! #33 "'( " ,*- .$3% ,* "%  + 0 " 2 , +   +/ 0 " / &, ) "  * " )* ) .6 "! " - .$&5 1 . 1. - - / 2'"33 Page 9 of 15 3/7/2025 From: To: Cc: Subject: Date: Juan Carlos Crosby tim.willy Hall, Chelo; Torrez, Martin, ENV; romero, antonio, ENV; Jaime Ramirez; Filiberto Aguirre Fw: 158 Aspen Thursday, March 13, 2025 1:28:56 PM Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. Hi Mr. Tim, Picture of bac-t Chain of Custody for sample taken near main line break. We will also be forwarding compliant form for site visit of discolor water where we sent operator for standard protocol check of water. Thank you, Jc Get Outlook for iOS From: Jaime Ramirez <jaimer@donaanacounty.org> Sent: Thursday, March 13, 2025 11:27:56 AM To: Juan Carlos Crosby <juancarlosc@donaanacounty.org> Cc: Eric Lopez <bfacilityops@comcast.net>; Filiberto Aguirre <filibertoa@donaanacounty.org> Subject: 158 Aspen Sample taken at 158 Aspen for line break at riverside. Sent from my Verizon, Samsung Galaxy smartphone Get Outlook for Android Standard Opera+ng Procedure of Arsenic Daily Form Importance of comple.on of Daily Form: Iden.fy what the current pH is of the Raw and Finish Water What pumps are running and for what chemical How effec.ve is the chemical and what are the feed rates for each chemical Inventory of Chemicals What is the system needing 1. Enter Date and Time of Inspec5on 2. Enter pH for Raw and Finish Water (pH range should be between 7 and 8) a. Check when the last .me was the pH probes removed and two-point calibra.on completed (if they were calibrated more than a month ago issue WORK ORDER. b. If pH reading is flashing issue WORK ORDER. c. If pH seems very high or low as noted on table 1.1 issue WORK ORDER. 3. Check all chemical pumps and plumbing and enter data requested on Form. a. If there are any leaks on the plumbing issue WORK ORDER. b. GPH/LPH are an extremely important part of the log to determine daily usage and project when chemical must be ordered. 4. Arsenic Field Test a. Cri.cal in following the instruc.on of Arsenic Test Kit and comple.ng field test on (Monday, Wednesday and Friday) on Finish Water. i. If Arsenic test shows levels above 10 ppb or lower than 5 ppb a Cer4fied Operator must be contacted immediately to adjust chemical in accordance with the systems need. ii. First Monday of every month an Arsenic Test should be completed on Raw Water. 5. Chlorine Field Test (Raw Cl2 residual range .6 to 1.0 ppm) (Finish Water Cl2 residual range .4 to .8 ppm) a. Chlorine Residual must be taken on daily of the Raw and Finish Water. i. If chlorine residual is below .4 ppm a cer.fied operator must be contacted immediately to adjust chemical in accordance with the systems need. 6. Backwash a. If backwash differen.al pressure is at 8 psi or above a backwash needs to be completed. i. A cer.fied operator must be contacted immediately to schedule the backwash immediately. 7. Work Order SubmiRed a. If any issues are apparent when comple.ng your daily form, you should issue WORK ORDER i. Be specific on what equipment it is for ii. Chemical needs to be ordered based on storage equaling 50 % or less in inventory 8. Comments a. This is for the operator to note what work orders were issued, was there a backwash completed. b. Any changes to chemical feed rate due to high or low arsenic/chlorine results 9. Signature a. Signature of whoever is comple.ng the rounds of this facility must complete form and ensure form is completed as explained in Standard Opera.ng Procedure. Measure Reference Table 1.1 SEE ARSENIC DAILY INSTRUCTIONS FOR ALL DUTIES REQURIED Item Type Minimum Values Maximum Values pH -Raw & Finished 7 8 Arsenic - Finish Chlorine (Cl) - Raw Chlorine (Cl) - Finish Backwash Pressure 5 ppb 0.6 ppm 0.4 ppm 8 PSI 10 ppb 1.0 ppm 0.8 ppm OR < 8 PSI Ac5on to Take Issue Work Order if: a. Last Calibra.on < 1 month b. pH reading flashing c. pH reading too high or low d. if calibra.on is out of range Issue Work Order if: a. < 5 ppb b. > 10 ppb Contacted Cer.fied Operator if: a. Cl Out of Range Value Contacted Cer.fied NM Level IV Operator if: a. Cl Out of Range Value Contact Cer.fied Operator if: a. At 8 PSI or < 8 PSI NOTE: Units of Measure Defini4on a. PPM - Parts Per Million b. PPB = Parts Per Billion c. PSI = Pounds Per Square Inch From: To: Subject: Date: Attachments: Juan Carlos Crosby Hall, Chelo FW: Booster Station Testing Thursday, March 13, 2025 4:09:46 PM CRRUA Booster Station Maintenance Program.xlsx Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. Chelo, Forgot to mention as part of the 2023 sanitary survey Booster Station Testing is done every quarter to prevent the potential of stagnant water at the booster station. Thx jc From: Filiberto Aguirre <filibertoa@donaanacounty.org> Sent: Thursday, March 13, 2025 2:41 PM To: Juan Carlos Crosby <juancarlosc@donaanacounty.org>; Willy, Tim, ENV <Tim.Willy@env.nm.gov> Cc: Torrez, Martin, ENV <martin.torrez@env.nm.gov>; Eric Lopez <BFacilityOps@comcast.net> Subject: Re: Booster Station Testing Tim Attached is our second round, 1st quarter, of quarterly booster testing based on the Maintenance Program submitted to NMED for sanitary survey, would you please review and let me know if you have any suggestions. Filiberto Aguirre Jr Utilities Operations Manager 575-997-1838 filibertoa@donaanacounty.org From: Juan Carlos Crosby <juancarlosc@donaanacounty.org> Sent: Tuesday, August 27, 2024 9:23 AM To: Willy, Tim, ENV <Tim.Willy@env.nm.gov> Cc: Filiberto Aguirre <filibertoa@donaanacounty.org>; Torrez, Martin, ENV <martin.torrez@env.nm.gov>; Eric Lopez <BFacilityOps@comcast.net> Subject: FW: Booster Station Testing Hi Tim, Attached is our first round of quarterly booster testing based on the Maintenance Program submitted to NMED for sanitary survey , would you please review and let me know if you have any suggestions. Thx jc From: Filiberto Aguirre <filibertoa@donaanacounty.org> Sent: Tuesday, August 27, 2024 8:15 AM To: Juan Carlos Crosby <juancarlosc@donaanacounty.org> Subject: Re: Booster Station Testing Here you go JC. The Booster station logs. Filiberto Aguirre Jr Utilities Operations Manager 575-997-1838 filibertoa@donaanacounty.org From: Juan Carlos Crosby <juancarlosc@donaanacounty.org> Sent: Monday, August 26, 2024 9:08 PM To: Filiberto Aguirre <filibertoa@donaanacounty.org> Subject: Booster Station Testing Hi Fili, Could you plz send me excel file on booster station testing tomorrow . Will be sending over to nmed for compliance. Thx jc From: To: Subject: Date: Attachments: Juan Carlos Crosby Hall, Chelo FW: CRRUA 2024 Review Tuesday, February 11, 2025 5:11:27 PM CRRUA_2024YearInReview.pdf Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. Hello Ms. Hall, Please see attached. Thank you, jc From: Juan Carlos Crosby Sent: Tuesday, February 11, 2025 3:18 PM To: Javier Perea <Javier.perea@sunlandpark-nm.gov>; Mario Juarez-Infante <Mario.juarezInfante@sunlandpark-nm.gov>; caescarcega89@gmail.com; hector.rangel@sunlandpark-nm.gov; mark@zianet.com; Shannon Reynolds <sreynolds@donaanacounty.org> Cc: Udell Vigil <udellv@donaanacounty.org>; Adn Trujillo <adan@trujillolegalservices.com>; Susan Kery <susan@uttonkery.com>; Filiberto Aguirre <filibertoa@donaanacounty.org>; David Espinoza <davide@donaanacounty.org> Subject: CRRUA 2024 Review Dear Board Members, I have completed my first full year as executive director and am presenting to you the CRRUA 2024 in Review. It is a report to you, our customers and the public that highlights the most significant developments of the past year. Please feel free to share it and it will be posted to the website and Facebook page Thank you for your support. I look forward to 2025 and the positive achievements that lie ahead. Sincerely, JC From: To: Subject: Date: Juan Carlos Crosby Hall, Chelo Fw: Media Reports re Yellow Water Friday, March 7, 2025 6:36:44 PM Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. Hello Chelo, Would like to keep you posted on event that took place last weekend of February of discolor water complaints and actions CRRUA took . If there are any questions please feel free to give me a call. Thank you JC Get Outlook for iOS From: Udell Vigil <udellv@donaanacounty.org> Sent: Friday, March 7, 2025 5:27 PM To: Hull, Cynthia <Cynthia.Hull@mail.house.gov>; Juan Carlos Crosby <juancarlosc@donaanacounty.org> Cc: Hartshorn, Emily <Emily.Hartshorn1@mail.house.gov> Subject: Re: Media Reports re Yellow Water Hello, Ms. Hull. I am sending you the following response on JC's behalf. Thanks and have an enjoyable weekend. Sincerely, Udell _________________________________________________________________________________________________________________________________________________________________________ Hello Ms. Hull. Per your March 5, 2025 request for information regarding yellow water in the CRRUA service area. Timeline of Discolored Water Events on Feb. 21 & Feb. 23, 2025 1. Two areas were impacted: Feb. 21: Santa Teresa Country Club and Crawford Road. (Result of fire department response to structure fire on Crawford Road.) I. Notice was posted on CRRUA website and Facebook page. Feb. 23: Southern section of Sunland Park from Meadow Vista Boulevard to Futurity Drive. (Result of backup water well activation.) II. The italicized information below describing the circumstances that caused the discolored water was provided to the news departments of the following El Paso TV stations: KTDO 48 (Telemundo) KFOX14/CBS4 ABC 7 NBC 9 Discolored Water Event on 2/23/25 Resolved The discolored water event that occurred on February 23, 2025, has been cleared. During ongoing well repairs, CRRUA operational staff activated a backup well. This process disturbed naturally occurring sediment deposits in the water lines, causing temporary discoloration. CRRUA operational staff promptly responded to the areas where discoloration reports were received. By the time staff arrived, the water had already cleared. CRRUA remains committed to providing safe and reliable water service. If customers experience any water quality concerns, they are encouraged to contact CRRUA customer service for assistance. 3. CRRUA received eleven (11) calls from customers for discolored water from Feb. 22-28, 2025. Call logs provided to NMED. 4. CRRUA operational staff responded by conducting site visits to impacted areas. Visits to compliant areas where water had cleared. Chlorine (Cl) Residuals were taken by CRRUA operational staff. Test results showed levels within compliant range to ensure proper disinfection. 5. NMED Compliance Officers conducted site visit on Feb. 28, 2025 to compliant areas for sampling. Bacterial Test (Bac-T) samples were collected and sent to an independent lab. Results came back negative. Bac-T testing is a standard method for determining water safety. pH samples were taken at three different sites using certified instruments. Tests results were in American Water Works Association (AWWA) compliance range. pH is a measure of how acidic/basic water is. Chlorine residuals were tested by CRRUA operators during customer site visits with NMED staff. Chlorine residuals were within the acceptable range to ensure proper disinfection. Water samples were taken from three Arsenic Treatment Facilities (ATF) on Feb. 27, 2025 and tested for arsenic. Test results for the Sunland Park ATF were 2.4 parts per billion (ppb,) Santa Teresa Industrial were 6.7 ppb and Santa Teresa Community were 6.2 ppb. All three were below the Environmental Protection Agency (EPA) Maximum Contaminiate Level (MCL) of 10 ppb. The water was never unsafe for consumption. Please let me know if I can provide you additional information. Thank you, JC Crosby From: Hull, Cynthia <Cynthia.Hull@mail.house.gov> Sent: Wednesday, March 5, 2025 5:04 PM To: Juan Carlos Crosby <juancarlosc@donaanacounty.org> Cc: Udell Vigil <udellv@donaanacounty.org>; Hartshorn, Emily <Emily.Hartshorn1@mail.house.gov> Subject: Media Reports re Yellow Water Good afternoon JC, I hope you're doing well and wanted to take a moment to reach out regarding media reports relating to yellow water in CRRUA's service area. Can you please confirm the accuracy of these reports and our office would also appreciate a brief update on the issue and steps that have been take to resolve the concern and communicate any updates with the public. In your most recent report you mentioned that you initiated tracking of calls for discolored water. Would you be able to provide an update on the number of calls regarding discolored water and the steps that were taken to confirm and address the concerns? Please outline actions CRRUA took to communicate updates regarding recent allegations of discolored water with the public and local/state entities (NMED) I appreciate your response JC and welcome you to reach out to me if you have any questions. Cynthia Hull M.A.| District Director | She/Her/Hers Office of the Honorable Gabe Vasquez (NM-2) 115 W. Griggs Ave. Las Cruces, NM 88001 202.875.0880 | WEB | SOCIALS CRRUA Fire Booster Station Exercise Flush Program Industrial Booster *Airport Booster POE Booster QTR 1 (DATE) OTR 2 (DATE) QTR 3 (DATE) 7/9/2024 7/9/2024 7/9/2024 QTR 4 (DATE) Exercise Time: (MIN 5 MINUTES) 5 minutes 5 minutes 5 minutes Fire Hydrant # Monarc Kitty Hawk Ave. Casa Grandes Operator Name AD,FA,EC AD,FA AD, FA, EC Industrial Booster *Airport Booster POE Booster QTR 1 (DATE) OTR 2 (DATE) QTR 3 (DATE) QTR 4 (DATE) 10/3/2024 10/3/2024 10/2/2024 Exercise Time: (MIN 5 MINUTES) 1107-1112/5 MINUTES 1442-1457/5 MINUTES 1356-1401/5 MINUTES Fire Hydrant # Monarc Kitty Hawk Ave. Casa Grandes Operator Name AD,FA AD,FA AD, FA Industrial Booster *Airport Booster POE Booster QTR 1 (DATE) OTR 2 (DATE) QTR 3 (DATE) QTR 4 (DATE) Exercise Time: (MIN 5 MINUTES) Fire Hydrant # Monarc Kitty Hawk Ave. Casa Grandes Operator Name NOTE: *Manual BOOSTER / SHUT OFF REQUIRED NOTES Kicks on @55PSI, #1 OOS #1 OOS NOTES KICKS ON AT 55 PSI Kicks on AT 55PSI, #1 OOS KICKS ON AT 46 PSI, #1 OOS NOTES Industrial Booster *Airport Booster POE Booster CRRUA Fire Booster Station Exercise QTR 1 (DATE) OTR 2 (DATE) 3/3/2025 3/3/2025 3/3/2025 QTR 3 (DATE) e Flush Program QTR 4 (DATE) Exercise Time: (MIN 5 MINFire Hydrant # Operator N 1510-1515 Monarc AD Kitty Hawk AD Ki Ave. Casa Grandes AD NOTES Kicks on at 69PSI icks on @55PSI, #1 OOS Kicks on 46PSI Standard Operating Procedure for INDUSTRIAL ARSENIC Process Water pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what Hach sc 200 is showing 1. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 2. Go to Menu on Hach sc200 a. Click on Menu on bottom left side of display i. Hit enter on Sensor Setup ii. Hit enter on Calibrate iii. Hit enter on 2 Point Auto b. Calibration of Process pH use pH of 4 and 7 reagents i. Use reagent 4 for Bu@er 1 and press enter when pH has stabilized at a pH of 4 or it has stabilized at a pH close to 4 1. After the initial calibration the probe must be rinsed with deionized water. ii. Use reagent 7 for Bu@er 2 and press enter when pH has stabilized at a pH of 7 or it has stabilized at a pH close to 7 3. Once the calibration has completed the Hach system will complete a slope calibration to assure that the pH is within the proper range. 4. Return the Hach sc200 to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 6.8 to 7.2 due to sulfuric Acid being added to system. Created by Bridel Standard Operating Procedure for INDUSTRIAL ARSENIC Finish Water pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what Hach sc 200 is showing 5. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 6. Go to Menu on Hach sc200 a. Click on Menu on bottom left side of display i. Hit enter on Sensor Setup ii. Hit enter on Calibrate iii. Hit enter on 2 Point Auto b. Calibration of Finish water pH use pH reagents of 7 and 10 i. Use reagent 7 for Bu@er 1 and press enter when pH has stabilized at a pH of 7 or it has stabilized at a pH close to 7 1. After the initial calibration the probe must be rinsed with deionized water. ii. Use reagent 10 for Bu@er 2 and press enter when pH has stabilized at a pH of 10 or it has stabilized at a pH close to 10 7. Once the calibration has completed the Hach system will complete a slope calibration to assure that the pH is within the proper range. 8. Return the Hach sc200 to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 7.5 to 8.2 due to caustic soda being added to system. Created by Bridel Camino Real Regional Utility Authority PO Box 429 /4700 McNutt Rd Sunland Park, NM 88063 Telephone: 575-589-1075 Fax: 915-589-1185 3/5/2025 Ms. Avery Young c/o NMED Ground Water Bureau avery.young@env.nm.gov Cc: Mr. Hector M. Rangel - Public Works Director hector.rangel@sunlandpark-nm.gov ; Chelo Hall - EPA Region 6 hall.chelo@epa.gov ; Javier Perea - CRRUA Chairman Javier.perea@sunlandpark-nm.gov; Mario Jaurez-Infante - City Manager Mario.juarez-Infante@sunlandpark-nm.gov Subject: Site Visit Regarding Potential Overspill of Stampede Meat Incorporate (SMI) Ponding Holding Area Dear Ms. Young This letter serves to document CRRUA's response to a call received on 3/4/2025 at 5:30 PM regarding a potential overspill of the SMI ponding holding area. Upon arrival, CRRUA personnel met with SMI General Manager John Villa and SMI plant employee Jesse Youngblood to discuss the situation. The CRRUA team included operational staff members Filiberto Aguirre, Raul Rangel, and the CRRUA Director. During discussions, CRRUA was informed that fresh water had been released from SMI's holding tank (64,000 k.gal) into the SMI ponding/retention area on 3/4/2025. It was stated that the water from the holding tank entered the ponding area via a storm drain located on SMI property. SMI has indicated that the ponding area is within its property boundaries. Upon observation, CRRUA noted that the ponding area is unlined. CRRUA operator Raul Rangel expressed concerns regarding potential contamination risks. Specifically, he noted that stormwater collected into the retention area could contain oil and other contaminants due to vehicular traffic and parking at the stormwater entry point. CRRUA believes that SMI should enroll in EPA's stormwater runoff requirements for industrial facilities under the National Pollutant Discharge Elimination System (NPDES) Multi-Sector General Permit (MSGP) CRRUA acknowledges that it does not have jurisdiction over stormwater management within the City of Sunland Park. Therefore, CRRUA will notify the City of Sunland Park Public Works Department regarding this matter. Additionally, CRRUA will notify the New Mexico Environment Department (NMED) Ground Water Bureau to ensure appropriate regulatory oversight and assessment. Pictures are attached below. Please feel free to contact our office should you require any further clarification. Page 1 of 3 Sincerely, Juan Crosby Executive Director Camino Real Regional Utility Authority (CRRUA) 575-589-1075 juancarlosc@donaanacounty.org Pictures 1.1 Approximate location of spill in red SMI (5700 McNutt Rd, Santa Teres a, NM 88008) Page 2 of 3 1.2 Pictures of SMI Discharge to Ponding Area 03/05/2025 - Time Approx 5:30pm 1.3 Pictures of SMI Discharge to Ponding Area 03/05/2025 - Time Approx 5:30pm Page 3 of 3 Created by BRIDEL Standard Operating Procedure for SUNLAND PARK ARSENIC Process Water pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what GLI Model 53 is showing 1. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 2. Go to Menu on GLI Model 53 a. Click on Menu on bottom left side of display i. Hit enter on Calibrate ii. Hit enter on Sensor iii. Hit enter on 2 Point Bu=er b. Calibration of Process pH use pH of 4 and 7 reagents i. Use reagent 4 for Bu=er 1 and press once pH has stabilized the meter will ask you to put probe into the second solution (reagent). 1. After the initial calibration the probe must be rinsed with deionized water. ii. Use reagent 7 for Bu=er 2 and press once pH has stabilized the meter will ask you to put probe into the second solution (reagent). iii. Display will state that 2-point bu=er confirm CAL ok. Press enter to confirm. iv. 2 Point Bu=er Confirm Active press enter. 3. Once the calibration has completed the GLI Model 53 system will complete a slope calibration to assure that the pH is within the proper range. 4. Return the GLI Model 53to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 6.8 to 7.2 due to sulfuric Acid being added to system. Created by BRIDEL Standard Operating Procedure for SUNLAND PARK ARSENIC Finish Water pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what GLI Model 53 is show 1. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 2. Go to Menu on GLI Model 53 Click on Menu on bottom left side of display i. Hit enter on Calibrate ii. Hit enter on Sensor iii. Hit enter on 2 Point Bu=er c. Calibration of Process pH use pH of 7 and 10 reagent iv. Use reagent 7 for Bu=er 1 and press once pH has stabilized the meter will ask you to put probe into the second solution (reagent). 1. After the initial calibration the probe must be rinsed with deionized water. v. Use reagent 10 for Bu=er 2 and press once pH has stabilized the meter will ask you to put probe into the second solution (reagent). vi. Display will state that 2-point bu=er confirm CAL ok. Press enter to confirm. vii. 2 Point Bu=er Confirm Active press enter. 3. Once the calibration has completed the GLI Model 53 system will complete a slope calibration to assure that the pH is within the proper range. 4. Return the GLI Model 53to the home screen and install the probe back into operations; d. Monitor pH meter and pH should return to a pH of 7.5 to 8.2 due to caustic being added to system. Standard Operating Procedure for Santa Teresa Community ARSENIC Raw Water pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what Rosemont 1056 is showing 1. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 2. Go to Menu on Rosemont 1056 a. Click on Menu on top right side of display i. Press enter on Calibrate ii. Press enter on Sensor 1 iii. Press enter on pH iv. Press enter on Bu=er Cal v. Press enter on Auto vi. Press enter on Start Auto Cal b. Calibration of Raw water pH use pH reagents of 7 and 10 i. Use reagent 7 for Bu=er 1 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 7.09 on screen and press enter ii. Use reagent 10 for Bu=er 2 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 10.01 on screen and press enter 3. Once the calibration has completed the Rosemont 1056 system will complete a slope calibration to assure that the pH is within the proper range. 4. Return the Rosemont 1056 to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 7.5 to 8.2 based on normal well water pH Created by Bridel Standard Operating Procedure for Santa Teresa Community ARSENIC Post Acid pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what Rosemont 1056 is showing 5. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 6. Go to Menu on Rosemont 1056 a. Click on Menu on top right side of display i. Press enter on Calibrate ii. Press enter on Sensor 1 iii. Press enter on pH iv. Press enter on Bu=er Cal v. Press enter on Auto vi. Press enter on Start Auto Cal b. Calibration of Post Acid pH use pH reagents of 4 and 7 i. Use reagent 4 for Bu=er 1 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 4.01on screen and press enter ii. Use reagent 7 for Bu=er 2 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 7.09 on screen and press enter 7. Once the calibration has completed the Rosemont 1056 system will complete a slope calibration to assure that the pH is within the proper range. 8. Return the Rosemont 1056 to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 6.8 to 7.2 due to sulfuric acid being added to system. Created by Bridel Standard Operating Procedure for Santa Teresa Community ARSENIC Post Filtration pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what Rosemont 1056 is showing 1. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 2. Go to Menu on Rosemont 1056 a. Click on Menu on top right side of display i. Press enter on Calibrate ii. Press enter on Sensor 1 iii. Press enter on pH iv. Press enter on Bu=er Cal v. Press enter on Auto vi. Press enter on Start Auto Cal b. Calibration of Post Filtration water pH use pH reagents of 7 and 10 i. Use reagent 7 for Bu=er 1 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 7.009 on screen and press enter ii. Use reagent 10 for Bu=er 2 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 10.01 on screen and press enter 3. Once the calibration has completed the Rosemont 1056 system will complete a slope calibration to assure that the pH is within the proper range. 4. Return the Rosemont 1056 to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 6.8 to 7.5 due to ferric chloride and sulfuric acid being in treated water. Created by Bridel Standard Operating Procedure for Santa Teresa Community ARSENIC Finish Water pH Probe Calibration When to complete pH probe Calibration: Monthly as required to ensure that Probes are responding to reagents When unusual pH is noticed based on chemical feed or pH taken with portable meters that does not match what Rosemont 1056 is showing 1. Remove pH probe from system and close isolation valve. a. Inspect glass sensor for solids build up or cracks on the glass. b. Rinse probe well with deionized water. 2. Go to Menu on Rosemont 1056 a. Click on Menu on top right side of display i. Press enter on Calibrate ii. Press enter on Sensor 1 iii. Press enter on pH iv. Press enter on Bu=er Cal v. Press enter on Auto vi. Press enter on Start Auto Cal b. Calibration of Finish water pH use pH reagents of 7 and 10 i. Use reagent 7 for Bu=er 1 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 7.09 on screen and press enter ii. Use reagent 10 for Bu=er 2 and controller will ask you to select a pH Bu=er range on what was used to calibrate 1. You should select the pH of 10.01 on screen and press enter 3. Once the calibration has completed the Rosemont 1056 system will complete a slope calibration to assure that the pH is within the proper range. 4. Return the Rosemont 1056 to the home screen and install the probe back into operations; a. Monitor pH meter and pH should return to a pH of 7.5 to 8.2 due to caustic being added to system. Created by Bridel Arsenic Log and Industrial Arsenic System Training Quiz Name: Date: 1. What are the different chemicals used in Arsenic Removal at this facility? (can be more than one correct answer) a. Ferric Chloride b. Nitric Acid c. Sulfuric Acid d. Caustic Soda e. Citric Acid The chemicals used is Ferric Chloride, Sulfuric Acid and Caustic Soda. 2. What is the current enforceable Maximum Contaminate Level (MCL) for arsenic by the EPA? a. 100 ppb (parts per billion) b. 50 ppb c. 20 ppb d. 10 ppb The MCL is 10 ppb. 3. What mode should the chemical feed pumps operate at when system is in operation? a. Hand b. Auto c. Either mode is okay The pumps should be on auto only to be able to adjust when flow increase or decreases through the system and automatically shuts pumps off when no flow is going through the system. 4. If a chemical feed pump is showing some chemical leaks at the pump what steps would you take? a. Turn pump off b. Isolate the chemical feed pump and disconnect from electrical outlet c. Keep the pump running and call Lead Operator d. Allow of the above Turn pump off and isolated chemical feed pumps and disconnect power to pump and submit a work order. 5. Why is it important to enter the feed rate of the pump on your daily form/log? (can be more than one correct answer) a. It is required on the form/log b. Monitor inventory c. Enter information into spreadsheet required by NMED Drinking Water Bureau d. All the above All of the above based on importance on all items listed. 6. When should a chlorine residual be taken of the Raw and Finish Water? (can be more than one correct answer) a. When adjustments are made to the chlorine b. Monday, Wednesday, and Friday c. Everyday d. All the above Anytime there is any adjustment to the chlorine feed as well as of everyday based on Safe Drinking Water requirements. 7. A backwash of the system is needed when the differential pressure reaches 8 psi. a. True b. False True, these systems need back up due to this being the limit set for the system to operate as designed. 8. A pH of 8.9 on the finish water is good. a. True b. False False, the highest pH of a water system must be < 8.5 as per Safe Drinking Water requirements. 9. What New Mexico NMED Certification Level is required to adjust chemicals and change valves at Arsenic System? (can be more than one correct answer) a. WW Level 2 b. W Level 3 if you have someone else witness the adjustment c. W Level 4 based on the population served d. None of the Above (c) Water Level 4 based on this system serving over the 20,000 population. 10. Work Orders are for what reason? (can be more than one correct answer) a. To explain how you broke the valve on the sample port for the finish water b. To let your supervisor and management that chemical is needed c. To let supervisor know equipment is not working d. To let supervisor know how your co-worker broke the pH probe (b, c) It is important that the supervisor knows chemical is needed as well as it being important that supervisors need equipment repair/replacement. Bonus Question: 1. Where are most likely to consume arsenic? a. From your well water b. From municipal water supply c. From your spouse d. At Red Lobster Restaurant (d) Organic arsenic, which is the minimally carcinogenic form of arsenic is found most in shellfish. Arsenic Facility Work Order On Chemical Refills or Equipment Failures Date: 4/17/24 Time: 8:36 pm Work Order Completed By: Eric Lopez Arsenic Facility: Industrial Sunland Park X ST Community Border Entry Chemical Needed: Ferric Chloride Sulfuric Acid X Caustic Soda Amount of Chemical Needed (gallons or totes): pH Probe needing Calibration or Replacement Raw Post Acid Post Treatment Post Caustic Finish Water Comments: Chemical Feed Pump Needing Repair Ferric Pump Sulfuric Acid Caustic Soda Comments (note which pump and possible problem): Equipment Needing Repair Equipment Name: Sulfuric chemical line Equipment Serial # Comments (Description of problem requiring a work order on equipment): Need 350 gallons of Sulfuric Acid delivered to SP ATF Is Lockout\Tagout Needed. Who Completed Lockout\Tagout: Yes No X Supervisor Signature for Completion: Eric R. Lopez Work Order Assigned to: Marcos Paoli Date: 4/17/24 Date: 4/17/24 Created by Bridel Facility Ops 1 2 3 4 5 ANALYTICAL REPORT 6 7 8 9 PREPARED FOR 10 11 Attn: Eric Lopez Camino Real Regional Utility Authority Water and Wastewater Department PO BOX 429 Sunland Park, New Mexico 88063 Generated 1/6/2025 1:43:33 PM JOB DESCRIPTION TCLP Sludges from North Plant, Sunland Park Plant, West Mesa JOB NUMBER 885-16547-1 Eurofins Albuquerque 4901 Hawkins NE Albuquerque NM 87109 See page two for job notes and contact information. Page 1 of 25 1 Eurofins Albuquerque 2 Job Notes 3 4 methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the 5 approval of the laboratory. All questions should be directed to the Eurofins Environment Testing South Central, LLC Project Manager. 6 7 Authorization 8 9 1/6/2025 1:43:33 PM Generated 10 Authorized for release by Michelle Garcia, Project Manager michelle.garcia@et.eurofinsus.com (505)345-3975 11 Page 2 of 25 1/6/2025 Client: Camino Real Regional Utility Authority Laboratory Job ID: 885-16547-1 1 Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, SDG: West Mesa Table of Contents 2 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 9 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 10 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 11 Page 3 of 25 Eurofins Albuquerque 1/6/2025 Definitions/Glossary Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Qualifiers GC/MS Semi VOA Qualifier Qualifier Description *- LCS and/or LCSD is outside acceptance limits, low biased. I Value is EMPC (estimated maximum possible concentration). GC Semi VOA Qualifier J Qualifier Description Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. LCMS Qualifier *+ Qualifier Description LCS and/or LCSD is outside acceptance limits, high biased. Glossary Abbreviation %R CFL CFU CNF DER Dil Fac DL DL, RA, RE, IN DLC EDL LOD LOQ MCL MDA MDC MDL ML MPN MQL NC ND NEG POS PQL PRES QC RER RL RPD TEF TEQ TNTC These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis Percent Recovery Contains Free Liquid Colony Forming Unit Contains No Free Liquid Duplicate Error Ratio (normalized absolute difference) Dilution Factor Detection Limit (DoD/DOE) Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision Level Concentration (Radiochemistry) Estimated Detection Limit (Dioxin) Limit of Detection (DoD/DOE) Limit of Quantitation (DoD/DOE) EPA recommended "Maximum Contaminant Level" Minimum Detectable Activity (Radiochemistry) Minimum Detectable Concentration (Radiochemistry) Method Detection Limit Minimum Level (Dioxin) Most Probable Number Method Quantitation Limit Not Calculated Not Detected at the reporting limit (or MDL or EDL if shown) Negative / Absent Positive / Present Practical Quantitation Limit Presumptive Quality Control Relative Error Ratio (Radiochemistry) Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) Too Numerous To Count 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 4 5 6 7 8 9 10 11 Page 4 of 25 Eurofins Albuquerque 1/6/2025 Client: Camino Real Regional Utility Authority Case Narrative Project: TCLP Sludges from North Plant, Sunland Park Plant, 1 Job ID: 885-16547-1 2 Job ID: 885-16547-1 Job Narrative 885-16547-1 Eurofins Albuquerque 3 4 Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary 5 Page unless otherwise noted under the individual analysis. Data qualifiers and/or narrative comments are included to explain any exceptions, if applicable. 6 situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD may be performed, unless otherwise Matrix QC may not be reported if insufficient sample is provided or site-specific QC samples were not submitted. In these 7 specified in the method. Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative. 8 Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits. 9 Receipt 10 The sample was received on 12/4/2024 11:50 AM. Unless otherwise noted below, the sample arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 2.4C. 11 Receipt Exceptions Sample time on COC does not match bottle. Contacted client who instructed lab to go with COC time. Sunland Park ATF Drying Bed (885-16547-1) GC/MS VOA No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. GC/MS Semi VOA Method 8270E_QQQ - TCLP: The continuing calibration verification (CCV) associated with batch 860-205099 recovered above the upper control limit for Hexachloroethane and p-Terphenyl-d14 (Surr). The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The associated sample is impacted: (CCVIS 860-205099/2). Method 8270E_QQQ - TCLP: The continuing calibration verification (CCV) associated with batch 860-205765 recovered above the upper control limit for Nitrobenzene-d5 (Surr) and Benzo[a]anthracene. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The associated sample is impacted: (CCVIS 860-205765/2). Method 8270E_QQQ - TCLP: The continuing calibration verification (CCV) associated with batch 860-206732 recovered above the upper control limit for 2,4-Dinitrotoluene, Nitrobenzene and Nitrobenzene-d5 (Surr). The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The associated sample is impacted: (CCVIS 860-206732/2). Method 8270E_QQQ - TCLP: The laboratory control sample and/or the laboratory control sample duplicate (LCS/LCSD) for preparation batch 860-204626 and analytical batch 860-205765 recovered outside control limits for the following analyte: Pyridine. Pyridine has been identified as a poor performing analyte when analyzed using this method; therefore, re-extraction/re-analysis was not performed. These results have been reported and qualified. No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. PCBs Method 8082A: The RPD of the laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) for preparation batch 885-17767 and analytical batch 885-18608 recovered outside control limits for the following analytes: PCB-1016 and PCB-1260. No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Pesticides No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Herbicides Method 8321B_Herb - TCLP: The laboratory control sample (LCS) for analytical batch 860-205030 recovered outside control limits Page 5 of 25 Eurofins Albuquerque 1/6/2025 Client: Camino Real Regional Utility Authority Case Narrative Project: TCLP Sludges from North Plant, Sunland Park Plant, 1 Job ID: 885-16547-1 2 Job ID: 885-16547-1 (Continued) Eurofins Albuquerque 3 for the following analytes: Silvex (2,4,5-TP). These analytes were biased high in the LCS and were not detected in the associated samples; therefore, the data have been reported. 4 upper control limit for 2,4-Dichlorophenylacetic acid (Surr). The associated sample is impacted: (CCV 860-205030/29). Method 8321B_Herb - TCLP: The continuing calibration verification (CCV) associated with batch 860-205030 recovered above the 5 No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. 6 Metals No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. 7 General Chemistry 8 No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. 9 10 11 Page 6 of 25 Eurofins Albuquerque 1/6/2025 Client Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Client Sample ID: Sunland Park ATF Drying Bed Date Collected: 12/03/24 08:00 Date Received: 12/04/24 11:50 Method: SW846 8260C - Volatile Organic Compounds by GC/MS - TCLP Analyte Result Qualifier RL Benzene ND 0.050 Carbon tetrachloride ND 0.25 Chlorobenzene ND 0.050 Chloroform ND 0.050 1,2-Dichloroethane ND 0.050 1,1-Dichloroethene ND 0.050 2-Butanone ND 2.5 Tetrachloroethene ND 0.050 Trichloroethene ND 0.25 Vinyl chloride ND 0.10 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Surrogate 1,2-Dichloroethane-d4 (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr) %Recovery 104 93 103 97 Qualifier Limits 63 - 144 74 - 124 75 - 131 80 - 120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) - TCLP Analyte Result Qualifier RL Unit 1,4-Dichlorobenzene ND 11 ug/L 2,4,5-Trichlorophenol ND 11 ug/L 2,4,6-Trichlorophenol ND 11 ug/L 2,4-Dinitrotoluene ND 11 ug/L 2-Methylphenol ND 11 ug/L 3 & 4 Methylphenol ND 11 ug/L Hexachlorobenzene ND 11 ug/L Hexachlorobutadiene ND 11 ug/L Hexachloroethane ND 11 ug/L Nitrobenzene ND 11 ug/L Pentachlorophenol ND 23 ug/L Pyridine ND *- 57 ug/L Surrogate 2,4,6-Tribromophenol (Surr) 2-Fluorophenol (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Phenol-d5 (Surr) p-Terphenyl-d14 (Surr) %Recovery 83 70 76 114 43 76 Qualifier I Limits 35 - 130 19 - 120 43 - 130 37 - 133 8 - 124 47 - 130 Method: SW846 8081B - Organochlorine Pesticides (GC) - TCLP Analyte Result Qualifier RL Chlorodane ND 0.0010 Endrin ND 0.000050 Heptachlor ND 0.000050 Heptachlor epoxide ND 0.000050 gamma-BHC (Lindane) ND 0.000050 Methoxychlor ND 0.000050 Toxaphene ND 0.0010 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Page 7 of 25 1 Job ID: 885-16547-1 SDG: West Mesa 2 Lab Sample ID: 885-16547-1 3 Matrix: Solid 4 D Prepared Prepared Analyzed 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 Analyzed 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 12/11/24 15:42 5 Dil Fac 50 6 50 50 7 50 50 8 50 50 50 9 50 50 10 Dil Fac 50 50 50 50 11 D Prepared 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 Analyzed 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 Prepared 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 Analyzed 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 12/20/24 14:55 Dil Fac 20 20 20 20 20 20 20 20 20 20 20 20 Dil Fac 20 20 20 20 20 20 D Prepared 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 Analyzed 12/12/24 15:53 12/12/24 15:53 12/12/24 15:53 12/12/24 15:53 12/12/24 15:53 12/12/24 15:53 12/12/24 15:53 Dil Fac 1 1 1 1 1 1 1 Eurofins Albuquerque 1/6/2025 Client Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Client Sample ID: Sunland Park ATF Drying Bed Date Collected: 12/03/24 08:00 Date Received: 12/04/24 11:50 Surrogate DCB Decachlorobiphenyl (Surr) Tetrachloro-m-xylene %Recovery 63 83 Qualifier Limits 28 - 94 52 - 134 Method: SW846 8082A - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analyte Result Qualifier RL Unit PCB-1016 ND 0.14 mg/Kg PCB-1221 ND 0.14 mg/Kg PCB-1232 ND 0.14 mg/Kg PCB-1242 ND 0.14 mg/Kg PCB-1248 ND 0.14 mg/Kg PCB-1254 ND 0.14 mg/Kg PCB-1260 ND 0.14 mg/Kg Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr) %Recovery 42 56 Qualifier Limits 25 - 137 37 - 123 Method: SW846 8321B - Herbicides (LC/MS) - TCLP Analyte Result Qualifier RL Unit Silvex (2,4,5-TP) ND *+ 13 ug/L 2,4-D ND 13 ug/L Surrogate DCAA %Recovery Qualifier 117 Method: SW846 6010B - Metals (ICP) - TCLP Analyte Result Arsenic ND Barium 0.19 Cadmium ND Chromium ND Lead ND Selenium ND Silver ND Qualifier Limits 50 - 150 RL 0.050 0.050 0.025 0.050 0.050 0.15 0.10 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Method: SW846 7470A - Mercury (CVAA) - TCLP Analyte Result Qualifier Mercury ND RL 0.00020 Unit mg/L General Chemistry Analyte pH (SW846 9040C) Free Liquid (SW846 9095B) Percent Moisture (ASTM D2216-10) Percent Solids (ASTM D2216-10) Result 7.7 Negative 1.3 Qualifier 99 RL 0.1 0.010 0.010 Unit SU NONE % % 1 Job ID: 885-16547-1 SDG: West Mesa 2 Lab Sample ID: 885-16547-1 3 Matrix: Solid 4 Prepared Analyzed Dil Fac 5 12/12/24 11:49 12/12/24 11:49 12/12/24 15:53 12/12/24 15:53 1 16 D Prepared 12/13/24 16:18 12/13/24 16:18 12/13/24 16:18 12/13/24 16:18 12/13/24 16:18 12/13/24 16:18 12/13/24 16:18 Analyzed 12/31/24 09:53 12/31/24 09:53 12/31/24 09:53 12/31/24 09:53 12/31/24 09:53 12/31/24 09:53 12/31/24 09:53 Prepared 12/13/24 16:18 12/13/24 16:18 Analyzed 12/31/24 09:53 12/31/24 09:53 7 Dil Fac 18 1 19 1 1 10 1 1 11 Dil Fac 1 1 D Prepared Prepared Analyzed 12/12/24 13:17 12/12/24 13:17 Analyzed 12/12/24 13:17 Dil Fac 1 1 Dil Fac 1 D Prepared 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 Analyzed 12/11/24 16:38 12/11/24 16:38 12/11/24 16:38 12/11/24 16:38 12/11/24 16:38 12/11/24 16:38 12/11/24 16:38 Dil Fac 1 1 1 1 1 1 1 D Prepared 12/12/24 05:17 Analyzed 12/12/24 20:44 Dil Fac 1 D Prepared Analyzed 12/20/24 15:00 01/06/25 11:45 12/18/24 11:04 12/18/24 11:04 Dil Fac 1 1 1 1 Page 8 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8260C - Volatile Organic Compounds by GC/MS Lab Sample ID: MB 860-204643/10 Matrix: Solid Analysis Batch: 204643 Analyte Benzene Carbon tetrachloride Chlorobenzene Chloroform 1,2-Dichloroethane 1,1-Dichloroethene 2-Butanone Tetrachloroethene Trichloroethene Vinyl chloride Surrogate 1,2-Dichloroethane-d4 (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr) MB Result ND ND ND ND ND ND ND ND ND ND MB Qualifier MB %Recovery 100 95 100 97 MB Qualifier RL 0.0010 0.0050 0.0010 0.0010 0.0010 0.0010 0.050 0.0010 0.0050 0.0020 Limits 63 - 144 74 - 124 75 - 131 80 - 120 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Method Blank 4 Prep Type: Total/NA 5 D Prepared Analyzed 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 Dil Fac 6 1 17 1 18 1 11 9 11 10 1 11 Prepared Analyzed 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 12/11/24 10:06 Dil Fac 1 1 1 1 Lab Sample ID: LCS 860-204643/3 Matrix: Solid Analysis Batch: 204643 Analyte Benzene Carbon tetrachloride Chlorobenzene Chloroform 1,2-Dichloroethane 1,1-Dichloroethene 2-Butanone Tetrachloroethene Trichloroethene Vinyl chloride Surrogate 1,2-Dichloroethane-d4 (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr) LCS %Recovery 99 102 100 103 LCS Qualifier Spike Added 0.0500 0.0500 0.0500 0.0500 0.0500 0.0500 0.250 0.0500 0.0500 0.0500 Limits 63 - 144 74 - 124 75 - 131 80 - 120 LCS Result 0.0514 0.0515 0.0533 0.0523 0.0517 0.0509 0.268 0.0558 0.0541 0.0550 LCS Qualifier Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Client Sample ID: Lab Control Sample Prep Type: Total/NA D %Rec 103 103 107 105 103 102 107 112 108 110 %Rec Limits 75 - 125 70 - 125 82 - 135 70 - 121 72 - 130 50 - 150 60 - 140 71 - 125 75 - 135 60 - 140 Lab Sample ID: LCSD 860-204643/4 Matrix: Solid Analysis Batch: 204643 Analyte Benzene Carbon tetrachloride Chlorobenzene Spike Added 0.0500 0.0500 0.0500 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA LCSD Result 0.0532 0.0555 0.0537 LCSD Qualifier Unit mg/L mg/L mg/L D %Rec 106 111 107 %Rec Limits 75 - 125 70 - 125 82 - 135 RPD 3 8 1 RPD Limit 25 25 25 Eurofins Albuquerque Page 9 of 25 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8260C - Volatile Organic Compounds by GC/MS (Continued) Lab Sample ID: LCSD 860-204643/4 Matrix: Solid Analysis Batch: 204643 Analyte Chloroform 1,2-Dichloroethane 1,1-Dichloroethene 2-Butanone Tetrachloroethene Trichloroethene Vinyl chloride Spike Added 0.0500 0.0500 0.0500 0.250 0.0500 0.0500 0.0500 LCSD Result 0.0542 0.0527 0.0543 0.291 0.0589 0.0566 0.0549 LCSD Qualifier Surrogate 1,2-Dichloroethane-d4 (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr) LCSD %Recovery 99 102 99 102 LCSD Qualifier Limits 63 - 144 74 - 124 75 - 131 80 - 120 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Lab Control Sample Dup 4 Prep Type: Total/NA %Rec 5 RPD Unit mg/L D %Rec 108 Limits 70 - 121 RPD Limit 6 4 25 mg/L mg/L 105 72 - 130 109 50 - 150 2 25 6 25 7 mg/L mg/L 116 60 - 140 118 71 - 125 8 25 5 25 8 mg/L mg/L 113 75 - 135 110 60 - 140 5 25 0 25 9 10 11 Lab Sample ID: LB 860-204581/1-A Matrix: Solid Analysis Batch: 204643 Analyte Benzene Carbon tetrachloride Chlorobenzene Chloroform 1,2-Dichloroethane 1,1-Dichloroethene 2-Butanone Tetrachloroethene Trichloroethene Vinyl chloride LB Result ND ND ND ND ND ND ND ND ND ND LB Qualifier RL 0.0050 0.025 0.0050 0.0050 0.0050 0.0050 0.25 0.0050 0.025 0.010 Surrogate 1,2-Dichloroethane-d4 (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr) LB %Recovery 101 95 100 99 LB Qualifier Limits 63 - 144 74 - 124 75 - 131 80 - 120 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Client Sample ID: Method Blank Prep Type: TCLP D Prepared Analyzed 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 Dil Fac 5 5 5 5 5 5 5 5 5 5 Prepared Analyzed 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 12/11/24 09:45 Dil Fac 5 5 5 5 Lab Sample ID: MB 860-204626/1-A Matrix: Solid Analysis Batch: 205765 MB MB Analyte Result Qualifier RL 1,4-Dichlorobenzene ND 0.57 2,4,5-Trichlorophenol ND 0.57 2,4,6-Trichlorophenol ND 0.57 2,4-Dinitrotoluene ND 0.57 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 204626 Unit D Prepared Analyzed Dil Fac ug/L 12/11/24 05:04 12/16/24 14:24 1 ug/L 12/11/24 05:04 12/16/24 14:24 1 ug/L 12/11/24 05:04 12/16/24 14:24 1 ug/L 12/11/24 05:04 12/16/24 14:24 1 Page 10 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) (Continued) Lab Sample ID: MB 860-204626/1-A Matrix: Solid Analysis Batch: 205765 MB MB Analyte Result Qualifier RL Unit 2-Methylphenol ND 0.57 ug/L 3 & 4 Methylphenol ND 0.57 ug/L Hexachlorobenzene ND 0.57 ug/L Hexachlorobutadiene ND 0.57 ug/L Hexachloroethane ND 0.57 ug/L Nitrobenzene ND 0.57 ug/L Pentachlorophenol ND 1.1 ug/L Pyridine ND 2.9 ug/L Surrogate 2,4,6-Tribromophenol (Surr) 2-Fluorophenol (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Phenol-d5 (Surr) p-Terphenyl-d14 (Surr) MB %Recovery 89 58 95 105 35 74 MB Qualifier Limits 35 - 130 19 - 120 43 - 130 37 - 133 8 - 124 47 - 130 Lab Sample ID: LCS 860-204626/2-A Matrix: Solid Analysis Batch: 205765 Analyte 1,4-Dichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dinitrotoluene 2-Methylphenol 3 & 4 Methylphenol Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Nitrobenzene Pentachlorophenol Pyridine Spike Added 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 LCS LCS Result Qualifier Unit 4.41 ug/L 6.78 ug/L 7.03 ug/L 6.61 ug/L 4.79 ug/L 4.68 ug/L 6.53 ug/L 3.57 ug/L 3.82 ug/L 6.49 ug/L 5.97 ug/L ND *- ug/L Surrogate 2,4,6-Tribromophenol (Surr) 2-Fluorophenol (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Phenol-d5 (Surr) p-Terphenyl-d14 (Surr) LCS %Recovery 110 58 102 121 36 84 LCS Qualifier Limits 35 - 130 19 - 120 43 - 130 37 - 133 8 - 124 47 - 130 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Method Blank 4 Prep Type: Total/NA Prep Batch: 204626 5 D Prepared 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 Analyzed 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 Prepared 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 12/11/24 05:04 Analyzed 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 12/16/24 14:24 Dil Fac 6 1 11 7 1 18 1 19 1 10 Dil Fac 1 1 1 1 1 1 11 Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 204626 %Rec D %Rec Limits 77 28 - 130 119 35 - 130 123 52 - 129 116 48 - 127 84 14 - 176 82 22 - 130 114 8 - 142 62 10 - 130 67 10 - 130 114 54 - 130 105 38 - 152 0 1 - 126 Page 11 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) (Continued) Job ID: 885-16547-1 SDG: West Mesa Lab Sample ID: LCSD 860-204626/3-A Matrix: Solid Analysis Batch: 205765 Analyte 1,4-Dichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dinitrotoluene 2-Methylphenol 3 & 4 Methylphenol Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Nitrobenzene Pentachlorophenol Pyridine Surrogate 2,4,6-Tribromophenol (Surr) 2-Fluorophenol (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Phenol-d5 (Surr) p-Terphenyl-d14 (Surr) LCSD %Recovery 108 56 93 116 34 77 LCSD Qualifier Spike Added 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 5.71 Limits 35 - 130 19 - 120 43 - 130 37 - 133 8 - 124 47 - 130 LCSD Result 4.13 6.47 6.65 6.40 4.54 4.47 5.81 3.45 3.48 6.24 5.40 ND LCSD Qualifier *- Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 204626 %Rec RPD Unit D %Rec Limits RPD Limit ug/L 72 28 - 130 7 30 ug/L 113 35 - 130 5 30 ug/L 116 52 - 129 6 30 ug/L 112 48 - 127 3 30 ug/L 79 14 - 176 5 30 ug/L 78 22 - 130 5 30 ug/L 102 8 - 142 12 30 ug/L 60 10 - 130 3 30 ug/L 61 10 - 130 9 30 ug/L 109 54 - 130 4 30 ug/L 94 38 - 152 10 30 ug/L 0 1 - 126 NC 30 1 2 3 4 5 6 7 8 9 10 11 Lab Sample ID: LB 860-204398/1-B Matrix: Solid Analysis Batch: 205099 LB LB Analyte Result Qualifier RL 1,4-Dichlorobenzene ND 0.57 2,4,5-Trichlorophenol ND 0.57 2,4,6-Trichlorophenol ND 0.57 2,4-Dinitrotoluene ND 0.57 2-Methylphenol ND 0.57 3 & 4 Methylphenol ND 0.57 Hexachlorobenzene ND 0.57 Hexachlorobutadiene ND 0.57 Hexachloroethane ND 0.57 Nitrobenzene ND 0.57 Pentachlorophenol ND 1.1 Pyridine ND 2.9 Client Sample ID: Method Blank Prep Type: TCLP Prep Batch: 204656 Unit D Prepared Analyzed Dil Fac ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 ug/L 12/11/24 08:27 12/12/24 23:12 1 Surrogate 2,4,6-Tribromophenol (Surr) 2-Fluorophenol (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Phenol-d5 (Surr) p-Terphenyl-d14 (Surr) LB %Recovery 96 61 87 104 39 104 LB Qualifier Limits 35 - 130 19 - 120 43 - 130 37 - 133 8 - 124 47 - 130 Prepared 12/11/24 08:27 12/11/24 08:27 12/11/24 08:27 12/11/24 08:27 12/11/24 08:27 12/11/24 08:27 Analyzed 12/12/24 23:12 12/12/24 23:12 12/12/24 23:12 12/12/24 23:12 12/12/24 23:12 12/12/24 23:12 Dil Fac 1 1 1 1 1 1 Page 12 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8081B - Organochlorine Pesticides (GC) Lab Sample ID: MB 860-205046/1-A Matrix: Solid Analysis Batch: 204997 Analyte Chlorodane Endrin Heptachlor Heptachlor epoxide gamma-BHC (Lindane) Methoxychlor Toxaphene MB Result ND ND ND ND ND ND ND MB Qualifier RL 0.0010 0.000050 0.000050 0.000050 0.000050 0.000050 0.0010 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Surrogate DCB Decachlorobiphenyl (Surr) Tetrachloro-m-xylene MB %Recovery 86 94 MB Qualifier Limits 28 - 94 52 - 134 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Method Blank 4 Prep Type: Total/NA Prep Batch: 205046 5 D Prepared 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 Analyzed 12/12/24 14:35 12/12/24 14:35 12/12/24 14:35 12/12/24 14:35 12/12/24 14:35 12/12/24 14:35 12/12/24 14:35 Prepared 12/12/24 11:49 12/12/24 11:49 Analyzed 12/12/24 14:35 12/12/24 14:35 Dil Fac 6 1 17 1 18 1 11 9 10 Dil Fac 1 11 1 Lab Sample ID: LCS 860-205046/2-A Matrix: Solid Analysis Batch: 204997 Analyte Endrin Heptachlor Heptachlor epoxide gamma-BHC (Lindane) Methoxychlor Surrogate DCB Decachlorobiphenyl (Surr) Tetrachloro-m-xylene LCS %Recovery 89 93 LCS Qualifier Spike Added 0.00125 0.00125 0.00125 0.00125 0.00125 Limits 28 - 94 52 - 134 LCS Result 0.00125 0.000959 0.00111 0.00112 0.000998 LCS Qualifier Unit mg/L mg/L mg/L mg/L mg/L Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 205046 %Rec D %Rec Limits 100 55 - 102 77 55 - 106 89 56 - 109 90 59 - 107 80 53 - 102 Lab Sample ID: LCSD 860-205046/3-A Matrix: Solid Analysis Batch: 204997 Analyte Endrin Heptachlor Heptachlor epoxide gamma-BHC (Lindane) Methoxychlor Surrogate DCB Decachlorobiphenyl (Surr) Tetrachloro-m-xylene LCSD %Recovery 91 95 LCSD Qualifier Spike Added 0.00125 0.00125 0.00125 0.00125 0.00125 Limits 28 - 94 52 - 134 LCSD Result 0.00128 0.000972 0.00113 0.00115 0.00100 LCSD Qualifier Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 205046 %Rec RPD Unit D %Rec Limits RPD Limit mg/L 102 55 - 102 2 25 mg/L 78 55 - 106 1 25 mg/L 91 56 - 109 2 25 mg/L 92 59 - 107 3 25 mg/L 80 53 - 102 1 25 Page 13 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8081B - Organochlorine Pesticides (GC) (Continued) Lab Sample ID: LB 860-204398/1-F Matrix: Solid Analysis Batch: 204997 Analyte Chlorodane Endrin Heptachlor Heptachlor epoxide gamma-BHC (Lindane) Methoxychlor Toxaphene LB Result ND ND ND ND ND ND ND LB Qualifier RL 0.0010 0.000050 0.000050 0.000050 0.000050 0.000050 0.0010 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Surrogate DCB Decachlorobiphenyl (Surr) Tetrachloro-m-xylene LB %Recovery 46 91 LB Qualifier Limits 28 - 94 52 - 134 Method: 8082A - Polychlorinated Biphenyls (PCBs) by Gas Chromatography 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Method Blank 4 Prep Type: TCLP Prep Batch: 205046 5 D Prepared 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 12/12/24 11:49 Analyzed 12/12/24 15:31 12/12/24 15:31 12/12/24 15:31 12/12/24 15:31 12/12/24 15:31 12/12/24 15:31 12/12/24 15:31 Prepared 12/12/24 11:49 12/12/24 11:49 Analyzed 12/12/24 15:31 12/12/24 15:31 Dil Fac 6 1 17 1 18 1 11 9 10 Dil Fac 1 11 1 Lab Sample ID: MB 885-17767/1-A Matrix: Solid Analysis Batch: 18608 Analyte PCB-1016 PCB-1221 PCB-1232 PCB-1242 PCB-1248 PCB-1254 PCB-1260 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr) MB Result ND ND ND ND ND ND ND MB Qualifier MB %Recovery 46 58 MB Qualifier RL 0.15 0.15 0.15 0.15 0.15 0.15 0.15 Limits 25 - 137 37 - 123 Unit mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 17767 D Prepared 12/13/24 15:51 12/13/24 15:51 12/13/24 15:51 12/13/24 15:51 12/13/24 15:51 12/13/24 15:51 12/13/24 15:51 Analyzed 12/30/24 20:59 12/30/24 20:59 12/30/24 20:59 12/30/24 20:59 12/30/24 20:59 12/30/24 20:59 12/30/24 20:59 Dil Fac 1 1 1 1 1 1 1 Prepared 12/13/24 15:51 12/13/24 15:51 Analyzed 12/30/24 20:59 12/30/24 20:59 Dil Fac 1 1 Lab Sample ID: LCS 885-17767/2-A Matrix: Solid Analysis Batch: 18608 Analyte PCB-1016 PCB-1260 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr) LCS %Recovery 45 58 LCS Qualifier Spike Added 0.125 0.125 Limits 25 - 137 37 - 123 LCS Result 0.0787 0.0785 LCS Qualifier J J Unit mg/Kg mg/Kg Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 17767 %Rec D %Rec Limits 63 35 - 130 63 44 - 130 Page 14 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8082A - Polychlorinated Biphenyls (PCBs) by Gas Chromatography (Continued) Job ID: 885-16547-1 SDG: West Mesa Lab Sample ID: LCSD 885-17767/3-A Matrix: Solid Analysis Batch: 18608 Analyte PCB-1016 PCB-1260 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr) LCSD %Recovery 49 56 LCSD Qualifier Method: 8321B - Herbicides (LC/MS) Spike Added 0.125 0.125 Limits 25 - 137 37 - 123 LCSD Result 0.0747 0.0820 LCSD Qualifier J J Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 17767 %Rec RPD Unit D %Rec Limits RPD Limit mg/Kg 60 35 - 130 5 20 mg/Kg 66 44 - 130 4 20 Lab Sample ID: MB 860-205030/10 Matrix: Solid Analysis Batch: 205030 MB MB Analyte Result Qualifier RL Silvex (2,4,5-TP) ND 5.0 2,4-D ND 5.0 Client Sample ID: Method Blank Prep Type: Total/NA Unit D Prepared Analyzed Dil Fac ug/L 12/12/24 12:15 1 ug/L 12/12/24 12:15 1 1 2 3 4 5 6 7 8 9 10 11 Surrogate DCAA MB %Recovery 99 MB Qualifier Limits 50 - 150 Prepared Analyzed 12/12/24 12:15 Dil Fac 1 Lab Sample ID: LCS 860-205030/5 Matrix: Solid Analysis Batch: 205030 Analyte Silvex (2,4,5-TP) 2,4-D Surrogate DCAA LCS %Recovery 94 LCS Qualifier Spike Added 40.2 40.7 Limits 50 - 150 LCS LCS Result Qualifier Unit 63.8 *+ ug/L 45.3 ug/L Client Sample ID: Lab Control Sample Prep Type: Total/NA D %Rec 159 111 %Rec Limits 50 - 150 50 - 150 Lab Sample ID: LCSD 860-205030/6 Matrix: Solid Analysis Batch: 205030 Analyte Silvex (2,4,5-TP) 2,4-D Surrogate DCAA LCSD %Recovery 101 LCSD Qualifier Spike Added 40.2 40.7 Limits 50 - 150 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA LCSD LCSD Result Qualifier Unit 59.8 ug/L 46.9 ug/L D %Rec 149 115 %Rec Limits 50 - 150 50 - 150 RPD 6 3 RPD Limit 30 30 Page 15 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 8321B - Herbicides (LC/MS) (Continued) Lab Sample ID: LB 860-204398/1-A Matrix: Solid Analysis Batch: 205030 LB LB Analyte Result Qualifier RL Unit Silvex (2,4,5-TP) ND 13 ug/L 2,4-D ND 13 ug/L Surrogate DCAA Method: 6010B - Metals (ICP) LB %Recovery 97 LB Qualifier Limits 50 - 150 Lab Sample ID: MB 860-204667/1-A Matrix: Solid Analysis Batch: 204804 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver MB Result ND ND ND ND ND ND ND MB Qualifier RL 0.010 0.010 0.0050 0.010 0.010 0.030 0.020 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Method Blank 4 Prep Type: TCLP 5 D Prepared 6 Analyzed 12/12/24 12:33 Dil Fac 1 12/12/24 12:33 17 Prepared Analyzed Dil Fac 8 12/12/24 12:33 1 9 Client Sample ID: Method Blank 10 Prep Batch: 204667 Prep Type: Total/NA 11 D Prepared 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 Analyzed 12/11/24 15:49 12/11/24 15:49 12/11/24 15:49 12/11/24 15:49 12/11/24 15:49 12/11/24 15:49 12/11/24 15:49 Dil Fac 1 1 1 1 1 1 1 Lab Sample ID: LCS 860-204667/2-A Matrix: Solid Analysis Batch: 204804 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Spike Added 1.00 1.00 1.00 1.00 1.00 1.00 0.500 LCS Result 0.988 1.01 0.948 0.950 0.969 1.08 0.483 LCS Qualifier Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 204667 %Rec D %Rec Limits 99 80 - 120 101 80 - 120 95 80 - 120 95 80 - 120 97 80 - 120 108 80 - 120 97 80 - 120 Lab Sample ID: LCSD 860-204667/3-A Matrix: Solid Analysis Batch: 204804 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Spike Added 1.00 1.00 1.00 1.00 1.00 1.00 0.500 LCSD Result 0.986 1.01 0.948 0.951 0.972 1.05 0.483 LCSD Qualifier Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 204667 %Rec RPD Unit D %Rec Limits RPD Limit mg/L 99 80 - 120 0 20 mg/L 101 80 - 120 0 20 mg/L 95 80 - 120 0 20 mg/L 95 80 - 120 0 20 mg/L 97 80 - 120 0 20 mg/L 105 80 - 120 3 20 mg/L 97 80 - 120 0 20 Page 16 of 25 Eurofins Albuquerque 1/6/2025 QC Sample Results Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Method: 6010B - Metals (ICP) (Continued) Lab Sample ID: LB 860-204398/1-C Matrix: Solid Analysis Batch: 204804 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Method: 7470A - Mercury (CVAA) LB Result ND ND ND ND ND ND ND LB Qualifier RL 0.050 0.050 0.025 0.050 0.050 0.15 0.10 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Lab Sample ID: MB 860-204905/1-A Matrix: Solid Analysis Batch: 205034 MB MB Analyte Result Qualifier RL Unit Mercury ND 0.00020 mg/L 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 Client Sample ID: Method Blank 4 Prep Type: TCLP Prep Batch: 204667 5 D Prepared 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 12/11/24 08:30 Analyzed 12/11/24 15:54 12/11/24 15:54 12/11/24 15:54 12/11/24 15:54 12/11/24 15:54 12/11/24 15:54 12/11/24 15:54 Dil Fac 6 1 17 1 18 1 11 9 10 Client Sample ID: Method Blank 11 Prep Type: Total/NA Prep Batch: 204905 D Prepared 12/12/24 05:17 Analyzed 12/12/24 20:22 Dil Fac 1 Lab Sample ID: LCS 860-204905/2-A Matrix: Solid Analysis Batch: 205034 Analyte Mercury Spike Added 0.00200 LCS Result 0.00193 LCS Qualifier Unit mg/L Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 204905 %Rec D %Rec Limits 96 80 - 120 Lab Sample ID: LCSD 860-204905/3-A Matrix: Solid Analysis Batch: 205034 Analyte Mercury Spike Added 0.00200 LCSD Result 0.00198 LCSD Qualifier Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 204905 %Rec RPD Unit D %Rec Limits RPD Limit mg/L 99 80 - 120 3 20 Lab Sample ID: LB 860-204398/1-E Matrix: Solid Analysis Batch: 205034 Analyte Mercury LB Result ND LB Qualifier Method: D2216-10 - Percent Moisture RL 0.00020 Unit mg/L Client Sample ID: Method Blank Prep Type: TCLP Prep Batch: 204905 D Prepared 12/12/24 05:17 Analyzed 12/12/24 20:27 Dil Fac 1 Lab Sample ID: 885-16547-1 DU Matrix: Solid Analysis Batch: 18024 Analyte Percent Moisture Percent Solids Sample Result 1.3 99 Sample Qualifier Client Sample ID: Sunland Park ATF Drying Bed Prep Type: Total/NA DU DU Result Qualifier Unit D 1.4 % 99 % RPD 5 0.07 RPD Limit 20 20 Page 17 of 25 Eurofins Albuquerque 1/6/2025 QC Association Summary Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, GC/MS VOA Leach Batch: 204581 Lab Sample ID 885-16547-1 LB 860-204581/1-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Prep Type TCLP TCLP Analysis Batch: 204643 Lab Sample ID 885-16547-1 LB 860-204581/1-A MB 860-204643/10 LCS 860-204643/3 LCSD 860-204643/4 Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA GC/MS Semi VOA Leach Batch: 204398 Lab Sample ID 885-16547-1 LB 860-204398/1-B Client Sample ID Sunland Park ATF Drying Bed Method Blank Prep Type TCLP TCLP Prep Batch: 204626 Lab Sample ID 885-16547-1 MB 860-204626/1-A LCS 860-204626/2-A LCSD 860-204626/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP Total/NA Total/NA Total/NA Prep Batch: 204656 Lab Sample ID LB 860-204398/1-B Client Sample ID Method Blank Prep Type TCLP Analysis Batch: 205099 Lab Sample ID LB 860-204398/1-B Client Sample ID Method Blank Prep Type TCLP Analysis Batch: 205765 Lab Sample ID MB 860-204626/1-A LCS 860-204626/2-A LCSD 860-204626/3-A Client Sample ID Method Blank Lab Control Sample Lab Control Sample Dup Prep Type Total/NA Total/NA Total/NA Analysis Batch: 206732 Lab Sample ID 885-16547-1 Client Sample ID Sunland Park ATF Drying Bed Prep Type TCLP GC Semi VOA Prep Batch: 17767 Lab Sample ID 885-16547-1 MB 885-17767/1-A LCS 885-17767/2-A LCSD 885-17767/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Lab Control Sample Lab Control Sample Dup Prep Type Total/NA Total/NA Total/NA Total/NA Matrix Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Matrix Solid Solid Solid Solid Matrix Solid Matrix Solid Matrix Solid Solid Solid Matrix Solid Matrix Solid Solid Solid Solid Page 18 of 25 Method 1311 1311 Method 8260C 8260C 8260C 8260C 8260C Method 1311 1311 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 4 Prep Batch 5 6 Prep Batch 7 204581 204581 8 9 10 Prep Batch 11 Method 3511 3511 3511 3511 Prep Batch 204398 Method 3511 Prep Batch 204398 Method 8270E Prep Batch 204656 Method 8270E 8270E 8270E Prep Batch 204626 204626 204626 Method 8270E Prep Batch 204626 Method 3540C 3540C 3540C 3540C Prep Batch Eurofins Albuquerque 1/6/2025 QC Association Summary Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, GC Semi VOA Analysis Batch: 18608 Lab Sample ID 885-16547-1 MB 885-17767/1-A LCS 885-17767/2-A LCSD 885-17767/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Lab Control Sample Lab Control Sample Dup Prep Type Total/NA Total/NA Total/NA Total/NA Leach Batch: 204398 Lab Sample ID 885-16547-1 LB 860-204398/1-F Client Sample ID Sunland Park ATF Drying Bed Method Blank Prep Type TCLP TCLP Analysis Batch: 204997 Lab Sample ID 885-16547-1 LB 860-204398/1-F MB 860-205046/1-A LCS 860-205046/2-A LCSD 860-205046/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA Prep Batch: 205046 Lab Sample ID 885-16547-1 LB 860-204398/1-F MB 860-205046/1-A LCS 860-205046/2-A LCSD 860-205046/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA LCMS Leach Batch: 204398 Lab Sample ID 885-16547-1 LB 860-204398/1-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Prep Type TCLP TCLP Analysis Batch: 205030 Lab Sample ID 885-16547-1 LB 860-204398/1-A MB 860-205030/10 LCS 860-205030/5 LCSD 860-205030/6 Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA Metals Leach Batch: 204398 Lab Sample ID 885-16547-1 LB 860-204398/1-C LB 860-204398/1-E Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Prep Type TCLP TCLP TCLP Matrix Solid Solid Solid Solid Matrix Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Solid Page 19 of 25 Method 8082A 8082A 8082A 8082A Method 1311 1311 Method 8081B 8081B 8081B 8081B 8081B Job ID: 885-16547-1 SDG: West Mesa Prep Batch 17767 17767 17767 17767 Prep Batch Prep Batch 205046 205046 205046 205046 205046 1 2 3 4 5 6 7 8 9 10 11 Method 3511 3511 3511 3511 3511 Prep Batch 204398 204398 Method 1311 1311 Method 8321B 8321B 8321B 8321B 8321B Prep Batch Prep Batch 204398 204398 Method 1311 1311 1311 Prep Batch Eurofins Albuquerque 1/6/2025 QC Association Summary Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Metals Prep Batch: 204667 Lab Sample ID 885-16547-1 LB 860-204398/1-C MB 860-204667/1-A LCS 860-204667/2-A LCSD 860-204667/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA Analysis Batch: 204804 Lab Sample ID 885-16547-1 LB 860-204398/1-C MB 860-204667/1-A LCS 860-204667/2-A LCSD 860-204667/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA Prep Batch: 204905 Lab Sample ID 885-16547-1 LB 860-204398/1-E MB 860-204905/1-A LCS 860-204905/2-A LCSD 860-204905/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA Analysis Batch: 205034 Lab Sample ID 885-16547-1 LB 860-204398/1-E MB 860-204905/1-A LCS 860-204905/2-A LCSD 860-204905/3-A Client Sample ID Sunland Park ATF Drying Bed Method Blank Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP Total/NA Total/NA Total/NA General Chemistry Analysis Batch: 18024 Lab Sample ID 885-16547-1 885-16547-1 DU Client Sample ID Sunland Park ATF Drying Bed Sunland Park ATF Drying Bed Prep Type Total/NA Total/NA Analysis Batch: 18222 Lab Sample ID 885-16547-1 Client Sample ID Sunland Park ATF Drying Bed Prep Type Total/NA Analysis Batch: 18844 Lab Sample ID 885-16547-1 Client Sample ID Sunland Park ATF Drying Bed Prep Type Total/NA Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Matrix Solid Solid Matrix Solid Matrix Solid Method 3010A 3010A 3010A 3010A 3010A Method 6010B 6010B 6010B 6010B 6010B 1 Job ID: 885-16547-1 SDG: West Mesa 2 3 4 5 Prep Batch 204398 204398 6 7 Prep Batch 204667 204667 204667 204667 204667 8 9 10 11 Method 7470A 7470A 7470A 7470A 7470A Prep Batch 204398 204398 Method 7470A 7470A 7470A 7470A 7470A Prep Batch 204905 204905 204905 204905 204905 Method D2216-10 D2216-10 Method 9040C Method 9095B Prep Batch Prep Batch Prep Batch Page 20 of 25 Eurofins Albuquerque 1/6/2025 Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Lab Chronicle Client Sample ID: Sunland Park ATF Drying Bed Date Collected: 12/03/24 08:00 Date Received: 12/04/24 11:50 Prep Type TCLP TCLP Batch Type Leach Analysis Batch Method 1311 8260C Dilution Batch Run Factor Number Analyst 204581 JCM 50 204643 NA TCLP TCLP TCLP Leach Prep Analysis 1311 3511 8270E 204398 EMC 204626 DR 20 206732 EM TCLP TCLP TCLP Leach Prep Analysis 1311 3511 8081B 204398 EMC 205046 DR 1 204997 KM Total/NA Total/NA Prep Analysis 3540C 8082A 17767 DH 1 18608 ED TCLP TCLP Leach Analysis 1311 8321B 204398 EMC 1 205030 JBS TCLP TCLP TCLP Leach Prep Analysis 1311 3010A 6010B 204398 EMC 204667 MD 1 204804 JDM TCLP TCLP TCLP Leach Prep Analysis 1311 7470A 7470A 204398 EMC 204905 AGR 1 205034 JDM Total/NA Analysis 9040C 1 18222 MA Total/NA Analysis 9095B 1 18844 MA Total/NA Analysis D2216-10 1 18024 DL This procedure uses a method stipulated length of time for the process. Both start and end times are displayed. Laboratory References: EET ALB = Eurofins Albuquerque, 4901 Hawkins NE, Albuquerque, NM 87109, TEL (505)345-3975 EET HOU = Eurofins Houston, 4145 Greenbriar Dr, Stafford, TX 77477, TEL (281)240-4200 Job ID: 885-16547-1 SDG: West Mesa Lab Sample ID: 885-16547-1 Matrix: Solid Lab EET HOU EET HOU EET HOU EET HOU EET HOU EET HOU EET HOU EET HOU EET ALB EET ALB EET HOU EET HOU EET HOU EET HOU EET HOU EET HOU EET HOU EET HOU EET ALB EET ALB EET ALB Prepared or Analyzed 12/10/24 17:00 - 12/11/24 09:00 12/11/24 15:42 12/10/24 12:00 - 12/11/24 04:00 12/11/24 05:04 12/20/24 14:55 12/10/24 12:00 - 12/11/24 04:00 12/12/24 11:49 12/12/24 15:53 12/13/24 16:18 12/31/24 09:53 12/10/24 12:00 - 12/11/24 04:00 12/12/24 13:17 12/10/24 12:00 - 12/11/24 04:00 12/11/24 08:30 12/11/24 16:38 12/10/24 12:00 - 12/11/24 04:00 12/12/24 05:17 12/12/24 20:44 12/20/24 15:00 01/06/25 11:45 12/18/24 11:04 1 2 3 4 5 6 7 8 9 10 11 Page 21 of 25 Eurofins Albuquerque 1/6/2025 Accreditation/Certification Summary Client: Camino Real Regional Utility Authority Project/Site: TCLP Sludges from North Plant, Sunland Park Plant, Laboratory: Eurofins Albuquerque Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority New Mexico Program State Identification Number NM9425, NM0901 Expiration Date 02-26-25 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification . Analysis Method 8082A Prep Method 3540C Matrix Solid Analyte PCB-1016 8082A 3540C Solid PCB-1221 8082A 3540C Solid PCB-1232 8082A 3540C Solid PCB-1242 8082A 3540C Solid PCB-1248 8082A 3540C Solid PCB-1254 8082A 3540C Solid PCB-1260 9040C Solid pH 9095B Solid Free Liquid D2216-10 Solid Percent Moisture D2216-10 Solid Percent Solids Oregon NELAP NM100001 02-25-25 Job ID: 885-16547-1 SDG: West Mesa 1 2 3 4 5 6 7 8 9 10 11 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification . Analysis Method 9040C Prep Method Matrix Solid Analyte pH 9095B Solid Free Liquid D2216-10 Solid Percent Moisture D2216-10 Solid Percent Solids Laboratory: Eurofins Houston All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Arkansas DEQ Florida Louisiana (All) Oklahoma Texas Texas USDA Program State NELAP NELAP NELAP NELAP TCEQ Water Supply US Federal Programs Identification Number 88-00759 E871002 03054 1306 T104704215 T104704215 525-23-79-79507 Expiration Date 08-04-25 06-30-25 12-20-25 12-31-24 06-30-25 12-28-25 03-20-26 Page 22 of 25 Eurofins Albuquerque 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 Page 23 of 25 1/6/2025 Login Sample Receipt Checklist Client: Camino Real Regional Utility Authority Login Number: 16547 List Number: 1 Creator: McQuiston, Steven Question The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <6mm (1/4"). Answer True True True True True True True True True True True True True True True True True N/A True True Comment 1 2 Job Number: 885-16547-1 3 SDG Number: West Mesa List Source: Eurofins Albuquerque 4 5 6 7 8 9 10 11 Eurofins Albuquerque Page 24 of 25 1/6/2025 Login Sample Receipt Checklist Client: Camino Real Regional Utility Authority Login Number: 16547 List Number: 2 Creator: Baker, Jeremiah Question The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <6mm (1/4"). Answer True True True True True True True True True True True True True True True True True True True True Comment 1 2 Job Number: 885-16547-1 3 SDG Number: West Mesa List Source: Eurofins Houston 4 List Creation: 12/10/24 12:17 PM 5 6 7 8 9 10 11 Eurofins Albuquerque Page 25 of 25 1/6/2025 Camino Real Regional Water Authority PWS ID No.: NM3502507 Date of Inspection 02/04-05/2025 Appendix 7 Opening and Closing Conference Sheets ED )q PRO1 United States Environmental Protection Agency Region 6 - Water Enforcement Branch 1201 Elm Street, Suite 500 Dallas, Texas 75270 TIME: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ SUBJECT: Compliance Evaluation Inspection (CEI): Facility Name NPDES PERMIT NO: Cfi.L A OPENING MEETING NAME TITLE PHONE NO. EMAIL cA\(A eI.JO?-d ,'?t1 , 7vt. E i. d OC/O Ci(va r ; ,ii/ 4LJL C _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 9t- 'ha - _ _ _ _ _ _ _ _ _ _ 1r-'7-711f O?'5. 11A#A* 6'Z. &\.k _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7S -' - I $'$' --' 52 & O2 Ocr fj$1L0 (o1P; po/r.Qt.iA io -r -o- (,S7 /62-c33 c;tie cW&Co4 c(4c, pi3,4 ebo'J _ _ _ _ _ _ _ _ _ _ _ _ _ _ 'I 7;,-i. k/// ev. Ii.' .Jci' 1', C. *.D S7li United States Environmental Protection Agency Region 6 - Water Enforcement Branch 1201 Elm Street, Suite 500 Dallas, Texas 75270 PRO TIME: /c3() DATE: _ _ _ _ _ _ _ _ _ _ _ _ _ SUBJECT: Cornplh?nce Evaluation Inspection (CEI): Facility Name NPDES PERMIT NO: CLOSING MEETING 2L/ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ NAME TITLE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ PHONE NO. EMAIL ;'i -c- ,2.7i, _ _ _ _ _ _ _ _ _ _ _ 75 -N -8L,s _ _ _ _ _ _ _ _ _ _ _ _ _ -/ <c/3. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -3 l -/q ( _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 97I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ r afr Camino Real Regional Water Authority (NM3502507) Date of Inspection 02/4-5/2025 Appendix 8 CRRUA Arsenic Plant Process Flow Diagrams Camino Real Regional Water Authority (NM3502507) Date of Inspection 02/4-5/2025 Camino Real Regional Water Authority (NM3502507) Date of Inspection 02/4-5/2025 Camino Real Regional Water Authority (NM3502507) Date of Inspection 02/4-5/2025 Camino Real Regional Water Authority (NM3502507) Date of Inspection 02/4-5/2025