Document gKz0xbYJL9meGewZ5zrZdYva

Report Prepared by: Report Approved by: NPDES Pretreatment Compliance Sampling Inspection Report Alta Metal Finishing, Inc. 126 Oakley Ave. White Plains, New York 10601 40 CFR Part 403 Wastewater Discharge Permit # 4399 Inspection Dates: 8/02/24 & 9/18/24 THUAN Digitally signed by THUAN TRAN _T_R_A_N________D1_4a:_t5e6:_:2002_2-4_0.51_'10.0_0'4_____________ Thuan Tran, Physical Scientist PHILIP Digitally signed by PHILIP COCUZZA _C_O_C__U_Z_Z_A____D1_3a:t_0e9:_:2209_2-4_0.51_'10.00_'6_____________ Phil Cocuzza, Supervisor Monitoring Operations Section Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 1.0 OBJECTIVE Inspection Dates: 8/02/24 & 9/18/24 On August 02 and September 18, 2024, at the request of the New York State Department of Environmental Conservation (NYSDEC), the United States Environmental Protection Agency (USEPA) conducted a Pretreatment Compliance Sampling Inspection (CSI) at Alta Metal Finishing, Inc. The objective of the Pretreatment CSI was to gather information necessary to determine if the facility is in compliance with the conditions, requirements and limitations of the Federal General Pretreatment Regulations for Existing and New Sources of Pollution in 40 CFR Part 403, Alta Metal Finishing, Inc. Wastewater Discharge Permit # 4399 and other related Federal regulations. Alta Metal Finishing, Inc. Wastewater Discharge Permit # 4399 was issued by the Westchester County Department of Environmental Facilities. The permit became effective on January 01, 2023, and will expire on December 31, 2024. 2.0 KEY PARTICIPANTS Listed below are key inspection participants and contact information, grouped by organization. U.S. Environmental Protection Agency Thuan Tran, Lead Inspector 732-321-4455, email: tran.thuan@epa.gov Molly Hillenbrand, Environmental Scientist Alta Metal Finishing, Inc. Andres Enriquez, Owner/Operator 914-906-6775, email: altametalfinishing@gmail.com Ken Strati, Previous Owner Westchester County Department of Environmental Facilities Monika Wieleba, Industrial Pretreatment Program (IPP) Coordinator 914-813-5720 (x-5715), email: mews@westchestercountyny.gov 3.0 FACILITY DESCRIPTION 3.1 General Information: Alta Metal Finishing, Inc. was founded in White Plains, New York (NY) in 1980 by Kenneth Strati. The small operating company is now owned and operated by Andres Enriquez. Alta Metal Finishing, Inc. performs vibratory deburring and barrel tumbling, soften edges and mechanically brighten & polish bare metal parts (ex. steel & aluminum). Metals that can be tumble are stainless steel, aluminium, titanium, brass, copper, and bronze. Tumbling media are steel, ceramic, plastic, and organic (corncob & walnut). Alta Metal Finishing, Inc. is located at 126 Oakley Ave., White Plains, NY. The facility employs approximately 3 people, operating 8-hour day from Monday to Friday Page 2 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Inspection Dates: 8/02/24 & 9/18/24 between the hours of 8:00AM to 4:30PM. Alta Metal Finishing, Inc. is categorized based on the Standard Industrial Classification (SIC) 3569 - General Industrial Machinery & Equipment, Not Elsewhere, and the North American Industry Classification System (NAICS) 333998 - All Other Miscellaneous General Purpose Machinery Manufacturing. 3.2 Process Information Alta Metal Finishing, Inc. uses municipal water for sanitary and operation process. Municipal water is not treated prior to use in the vibratory deburring and barrel tumbling operations. Received base metal parts are added into the tumbler with a tumbling media. Water, cleaning detergents, and rust preventive chemicals are added. As the tumbler vibrates, the surface of the base metal parts is cleaned of residual oil and dirt. The tumbling media rubs and vibrates against the base metal parts to smooth out rough edges. The rust inhibitor coats the base metal surface to prevent corrosion. After a pre-determined time, the base metal parts are removed from the tumbler through a screen and are collected in a plastic container. The finished products are packaged and delivered to the customers. The spent cleaning solution is drained from the tumbler onto the floor leading to the floor drain. In the floor drain, the process waste stream is conveyed to the collection pit. As the collection pit fills up, the level sensor pump is triggered and delivers the process wastewater to the receiving tank. From the receiving tank, the wastewater is pumped onto a cloth paper filter to remove solids. The filtrate from the cloth paper filter flows into the plastic junction container. In the plastic junction container are a submersible pump that delivers the wastewater to the 3,000-gallon storage holding tank and a hose that feeds the Ringwood Portable Band Filter Wastewater Treatment System. The wastewater in the 3,000-gallon storage holding tank is recirculated to the cloth paper filter, then to the plastic junction container. The hose delivers the wastewater to fill the influent receiving chamber of the Ringwood Portable Band Filter Wastewater Treatment System. The on-site portable wastewater treatment system operates on a batch capacity of 100 gallons per treatment cycle within 15-30 minutes. Once the influent receiving chamber reaches capacity, the wastewater is pumped into the reactor chamber that is equipped with an agitator. Once the agitator is turned on, a polymer; RM-10, is manually added to initiate the flocculation and coagulation processes for about two (2) minutes in binding particulates into larger masses. After reaction time, the agitator is turned off allowing for phase separation. The decant and solids from the reactor chamber discharge through a controlled grey PVC pipe onto the cloth paper filter. The filtrate accumulates in the effluent holding chamber. The pretreated effluent flows to the holding chamber outlet and discharges to the POTW sewer collection system. Page 3 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Inspection Dates: 8/02/24 & 9/18/24 Accumulated solids collected by the cloth paper filter of the on-site portable wastewater treatment system are rolled into the dumpster. The solids are disposed of as regular trash. Residual wastewater in the dumpster is directed into the floor drain for treatment. 3.3 Facility Self-Monitoring Information Alta Metal Finishing, Inc. conducted one compliance self-monitoring sampling event in December 2023 for the 2023 calendar year. No self-monitoring sampling event has been performed in 2024. During the sampling event, not all the parameters were collected in accordance with the Westchester County Department of Environmental Facilities Wastewater Discharge Permit # 4399. The parameters collected are Metals (As, Ba, Cd, Cr, Cu, Pb, Hg, Ni, Se, Ag & Zn), Hexavalent Chromium, Total Cyanide, Total Phenols, pH, O&G, SVOCs, and VOCs. Sample containers with preservatives were provided by York Analytical Laboratories located at 50 Gedney Street, Nyack, New York. Samples of the pretreated effluent was collected by Andres Enriquez. The samples were analyzed by York Analytical Laboratories. 4.0 EPA SAMPLING/INSPECTION ACTIVITIES 4.1 Sampling Activities Three batches of process wastewater were treated by the on-site portable wastewater treatment system throughout the day. Pretreated effluent was collected from each batch filling a third of the sample containers through manual grab-composite. Grab-composite samples were collected and analyzed for Metals (As, Ba, Cd, Cr, Cu, Pb, Hg, Ni, Se, Ag & Zn), Hexavalent Chromium, Total Phenols, and Non-Volatile Organic Analytes (NVOAs). Grab samples were collected for Oil & Grease (O&G), Total Cyanide and Volatile Organic Analytes (VOAs). Three (3) sets of grab samples for VOAs were collected at various time intervals. The VOA grab samples were laboratory composited. Furthermore, on-site grab samples were collected and analyzed for pH, Temperature, and Total Residual Chlorine (TRC). All sample containers, preservation techniques and holding times were in accordance with USEPA requirements specified in 40 CFR Part 136. Signed and dated custody seals were placed across the lids and along the sides of the sample containers. The custody sealed sample containers were placed inside plastic sample bags and sealed. All samples were transported on ice to the USEPA Laboratory in Edison, New Jersey for analysis. Split samples were collected and given to the facility representative. Page 4 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 4.2 Inspection Activities Inspection Dates: 8/02/24 & 9/18/24 A Pretreatment Compliance Sampling Inspection (CSI) at Alta Metal Finishing, Inc. was conducted on August 02 and September 18, 2024. The inspectors met with Andres Enriquez; Owner/Operator and Ken Strati; Previous Owner. Inspector's credential was presented, and business card was provided during the opening conference. The facility representatives were explained that the inspection purpose with supporting on-site activities was to determine if Alta Metal Finishing, Inc. is in compliance with the Federal limitations, requirements and conditions set forth in 40 CFR Part 403, Wastewater Discharge Permit # 4399, and other related Federal regulations. Supporting on-site activities consist of collecting samples of the pretreated effluent at the monitoring location, observe and evaluate the monitoring location, observe and evaluate the wastewater treatment flow process, review and evaluate the on-site sampling procedures, review and evaluate the chain-of-custody, review and evaluate the analytical data, and interview the facility's representatives. The facility's representatives were briefed on the inspection activities throughout the inspection and during the closing conference. On-site sample results and concerns discovered during the inspection were communicated to the facility's representatives so that they understand their responsibilities to comply with the conditions, requirements and limitations set forth in the Federal regulations and their industrial user permit. 4.3 Deviations and/or Environmental Conditions On August 02, 2024 visit, one of the 8 tumblers was observed to be in operation. The process wastewater generated eventually was directed into the 3,000-gallon storage holding tank. The onsite portable wastewater treatment system was not connected to the treatment flow process. It was explained that the facility was rearranging and waiting on a back-order of polymer. A new sampling date was scheduled for Wednesday, September 18, 2024, once the polymer was received and the portable wastewater treatment system was connected to the treatment flow process. During the visit, the tumblers were not operating. Approximately 600 gallons of process wastewater was stored in the 3,000-gallon storage holding tank since the August 02 visit. The facility's representative explained that compliance self-monitoring samples are collected from the reactor chamber grey PVC pipe. Due to accessibility to the pretreated effluent after the cloth paper filter, a professional judgement was made to collect compliance samples from the grey PVC pipe. Page 5 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 5.0 ANALYTICAL RESULTS Inspection Dates: 8/02/24 & 9/18/24 Table 1 - Alta Metal Finishing, Inc. Wastewater Discharge Permit Inspection Dates: August 02, 2024 & September 18, 2024 POLLUTANTS UNITS LOCAL EFFLUENT LIMITATION EPA RESULT (Daily Average) pH S.U. 5.5 - 9.5 7.48 Arsenic mg/l 0.2 U Barium mg/l 2.0 U Cadmium mg/l 0.7 U Chromium mg/l 3.0 0.018 Hexa Chromium mg/l 2.0 U Copper mg/l 2.8 0.031 Cyanide, Total mg/l 0.8 U L Lead mg/l 0.4 U Mercury mg/l 0.2 U Nickel mg/l 2.8 0.54 O&G mg/l 100 U Phenols mg/l 4.0 0.097 Selenium mg/l 0.2 U Silver mg/l 0.8 U Zinc mg/l 1.9 1.51 TTO* mg/l 2.1 0.042 U J VOAs --- ---- 0.006 U NVOAs --- ---- 0.036 J Temperature C </= 40 (104F) - 40 CFRP403.5(b)(5) 23 TRC mg/l For Sample Collection & Preservation Zero Notes:* U: The analyte was not detected at or above the Reporting Limit. J: The identification of the analyte is acceptable; the reported value is an estimate. L: The identification of the analyte is acceptable; the reported value may be biased low. TTO*: The sum of the concentration of the specific toxic organic compounds regulated by the specific categorical, or Westchester County, Pretreatment Regulations, which is found in the discharge at specific quantifiable concentration. 6.0 FINDINGS 6.1 Sampling Result Findings The EPA analytical results obtained during this inspection are within the acceptable limits. 6.2 Inspection Findings In addition to the analytical data, an inspection of the facility operations was conducted as discussed in Section 4.2 above. During the inspection, the following observations were Page 6 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Inspection Dates: 8/02/24 & 9/18/24 noted which may contravene the requirements of the applicable Federal regulations and the Wastewater Discharge Permit: 6.2.1 Compliance samples are collected from the reactor chamber grey PVC discharge pipe (See Section 8.0 Photographs: Photo #8). Samples collected from this monitoring location are not representative of the pretreated discharge effluent due to further treatment downstream. According to PART II - DEFINITIONS in the Wastewater Discharge Permit, it states, "Self-Monitoring - Sampling and analyses performed at the Industry by the Industry itself in accordance with 40 CFR Part 403." In 40 CFR Part 403.12(b)(5)(ii) for Measurement of Pollutants, it states, "In addition, the User shall submit the results of sampling and analysis identifying the nature and concentration (or mass, where required by the Standard or Control Authority) of regulated pollutants in the Discharge from each regulated process. Both daily maximum and average concentration (or mass, where required) shall be reported. The sample shall be representative of daily operations." Furthermore, 40 CFR Part 403.12(b)(5)(iv) for Measurement of Pollutants, it states, "Samples should be taken immediately downstream from pretreatment facilities if such exist or immediately downstream from the regulated process if no pretreatment exists." 6.2.2 Compliance samples collected by the facility are not chilled. According to 40 CFR Part 403.12(b)(5)(v) for Measurement of Pollutants, it states, "Sampling and analysis shall be performed in accordance with the techniques prescribed in 40 CFR part 136 and amendments thereto." Under the "Preservation" column in TABLE II - REQUIRED CONTAINERS, PRESERVATION TECHNIQUES, AND HOLDING TIMES in 40 CFR Part 136, pollutants in the Alta Metal Finishing, Inc. discharge permit are to be cool to six degrees Celsius or less (</=6C) except for metals. Furthermore footnote #2 of TABLE II, it states, "Except where noted in this Table II and the method for the parameter, preserve each grab sample within 15 minutes of collection. For a composite sample collected with an automated sample (e.g., using a 24-hour composite sample; see 40 CFR 122.21(g)(7)(i) or 40 CFR part 403, appendix E), refrigerate the sample at 6 C during collection unless specified otherwise in this Table II or in the method(s). For a composite sample to be split into separate aliquots for preservation and/or analysis, maintain the sample at 6 C, unless specified otherwise in this Table II or in the method(s), until collection, splitting, and preservation is completed." 6.2.3 One of two compliance self-monitoring sampling events was conducted by the facility for 2023. According to PART IV - MONITORING REQUIREMENTS Compliance & Self-Monitoring of the discharge permit, it states, " The permittee is required to self-monitor at least twice a year in accordance with 40 CFR Part 403. The samples must be analyzed using test procedures prescribed in 40 CFR Part 136 or otherwise approved by EPA or specified in this permit. The self-monitoring results shall be submitted to the Department within thirty (30) days of receipt." More specifically 40 CFR Part 403.12(e)(1) - Periodic Reports On Continued Compliance Page 7 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Inspection Dates: 8/02/24 & 9/18/24 states, "Any Industrial User subject to a categorical Pretreatment Standard (except a Non-Significant Categorical User as defined in 403.3(v)(2)), after the compliance date of such Pretreatment Standard, or, in the case of a New Source, after commencement of the discharge into the POTW, shall submit to the Control Authority during the months of June and December, unless required more frequently in the Pretreatment Standard or by the Control Authority or the Approval Authority, a report indicating the nature and concentration of pollutants in the effluent which are limited by such categorical Pretreatment Standards." 6.2.4 The information on the "Field Chain-of-Custody Record" and the "Technical Report" from YORK Analytical Laboratory Inc. indicates the pH (Hydrogen Ion) sample was collected on 12/19/24. The sample was received by the laboratory on 12/20/23. The sample was analyzed on 12/22/23. According to 40 CFR Part 136 TABLE II - REQUIRED CONTAINERS, PRESERVATION TECHNIQUES, AND HOLDING TIMES, pH sample must be "analyze within 15 minutes." Page 8 of 9 Alta Metal Finishing, Inc., White Plains, NY 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Inspection Dates: 8/02/24 & 9/18/24 7.0 ATTACHMENTS Attachment #1. Process waste streams from the tumblers are directed to the floor drain. Attachment #2. USEPA Chain of Custody for Samples was submitted to the USEPA Lab. Attachment #3. USEPA Analytical Data Package was received on October 04, 2024. Attachment #4. Alta Metal Finishing, Inc. Discharge Permit # 4399 expires on 12/31/2024. Attachment #5. Alta Metal Finishing, Inc. Self-Monitoring Data submitted to the County IPP. 8.0 PHOTOGRAPHS Photo #1. Municipal water is used in the tumbler to clean and polish bare metal parts. Photo #2. Process waste streams are directed to the floor drain then to the collection pit. Photo #3. Wastewater in the collection pit is pumped to the receiving tank below the window fan. Photo #4. From the receiving tank, the wastewater is pumped onto the cloth paper filter. The filtrate continues to the plastic junction container. Photo #5. Wastewater in the plastic junction container is pumped to either the storage holding tank (See Photo #3 - Center) or the on-site portable treatment system. Photo #6. Wastewater is pumped into the influent receiving chamber. Photo #7. Polymer is added to the wastewater in the reactor chamber with the agitator provides mixing. Photo #8. Effluent from the reactor chamber discharges onto the cloth paper filter. Photo #9. Pretreated effluent in the effluent holding chamber discharges to the POTW. Page 9 of 9 Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 7.0 Attachments Attachment #1. Process waste streams from the tumblers are directed into the floor drain. Attachment #2. Samples were submitted to the USEPA Laboratory on September 18, 2024. Attachment #3. Analytical data were received on October 4, 2024. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory 2890 Woodbridge Avenue Edison , New Jersey 08837 732-906-6886 Phone 732-906-6165 Fax October 04, 2024 Thuan Tran Monitoring & Assessment Branch LSASD/MAB Edison, NJ 08837 RE: Alta Metal Finishing, Inc. - 2409024 Enclosed are the results of analyses for samples received by the laboratory on 09/18/2024. The signature below reflects the laboratory's approval of the reported results. If you have any questions concerning this report, please refer to Project Number 2409024 and contact the laboratory. Sincerely, John R. Bourbon Chief, LSASD/LB Project Narrative: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 The National Environmental Laboratory Accreditation Conference Institute (TNI) is a voluntary environmental laboratory accreditation association of State and Federal agencies. TNI established and promoted a National Environmental Laboratory Accreditation Program (NELAP) that provides a uniform set of standards for the generation of environmental data that are of known and defensible quality. The EPA Region 2 Laboratory is NELAP accredited. The Laboratory tests that are accredited have met all the requirements established under the TNI Standards. Condition Comments None Comment(s): The "Sample Analysis Date and Time" is included in the results section for any analyte with a prescribed holding time of 72 hours or less. SVOA: NPDES requirements were not met in S410003-ICV1. Multiple calibrations were run in an effort to meet NPDES criteria. No qualifications were necessay for sample 2409024-01 due to the ICV not meeting the acceptance limits. There were several compounds outside %RPD QC limtis in LCS/LCSD and MS/MSD. Based on these results, a "J" qualifier was applied accordingly to sample 2409009-01. Data Qualifier(s): U- The analyte was not detected at or above the Reporting Limit. J- The identification of the analyte is acceptable; the reported value is an estimate. K- The identification of the analyte is acceptable; the reported value may be biased high. L- The identification of the analyte is acceptable; the reported value may be biased low. NJ- There is presumptive evidence that the analyte is present; the analyte is reported as a tentative identification. The reported value is an estimate. U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 1 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Reporting Limit(s): The Laboratory was able to achieve the appropriate limit for each analyte requested. Field ID Pretreated Effluent: Grab-Comp Pretreated Effluent: Grab TRIP BLANK Lab Composite: 1st+2nd+3rd Set SUMMARY REPORT FOR SAMPLES Laboratory ID 2409024-01 2409024-02 2409024-03 2409024-07 Matrix Aqueous Aqueous Aqueous Aqueous Date Sampled 09/18/2024 13:30 09/18/2024 13:30 09/17/2024 15:27 09/18/2024 00:01 Date Received 09/18/2024 16:20 09/18/2024 16:20 09/18/2024 16:20 09/18/2024 16:20 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 2 of 32 Analysis 624.1 VOA EPA-NPDES Chromium, Hexavalent Cyanide, Total E-625.1-SVOA EPA ERA Mercury Metals ICP TAL NPDES/DW Oil & Grease Phenolics, Total UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 SUMMARY REPORT FOR METHODS Method EPA 624.1 SOP C-89 Rev 3.7 HACH 8023 SOP C-96 Rev 2.8 EPA 335.4 SOP C-28 Rev 2.8 EPA 625.1 SOP C-90 Rev 3.9 EPA 245.1 SOP C-110 Rev 2.8 EPA 200.7 SOP C-109 Rev 3.7 EPA 1664A SOP C-126 Rev 1.7 EPA 420.4 SOP C-29 Rev 2.8 Certification NELAP NELAP NELAP NELAP NELAP NELAP NELAP NELAP Matrix Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 3 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Analyte Field ID: Pretreated Effluent: Grab-Comp NVOA GCMS 1,4-Dioxane N-Nitrosodimethylamine Benzaldehyde Phenol Bis(2-Chloroethyl)Ether 2-Chlorophenol 2-Methylphenol Bis(2-Chloroisopropyl)Ether Acetophenone 4-Methylphenol N-Nitroso-Di-N-Propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Bis(-2-Chloroethoxy)Methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Hexachlorobutadiene Naphthalene 4-Chloroaniline Caprolactam 4-Chloro-3-Methylphenol 2-Methylnaphthalene 1,2,4,5-Tetrachlorobenzene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol Result Qualifier Reporting Limit Units Batch Sample ID: 2409024-01 Date and Time of Analysis* 2.29 J 2.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 33.5 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 4 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Analyte Field ID: Pretreated Effluent: Grab-Comp NVOA GCMS Biphenyl 2-Chloronaphthalene 2-Nitroaniline Dimethyl Phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2,3,4,6-Tetrachlorophenol Fluorene Diethylphthalate 4-Chlorophenyl-Phenylether 4-Nitroaniline 4,6-Dinitro-2-Methylphenol N-Nitrosodiphenylamine 4-Bromophenyl-Phenylether Hexachlorobenzene Atrazine Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butyl Phthalate Fluoranthene Pyrene Result Qualifier Reporting Limit Units Batch Sample ID: 2409024-01 Date and Time of Analysis* --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 5 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Analyte Field ID: Pretreated Effluent: Grab-Comp NVOA GCMS Butylbenzylphthalate 3,3'- Dichlorobenzidine Benzo(A)Anthracene Chrysene Bis(2-Ethylhexyl)Phthalate Di-N-Octyl Phthalate Benzo(B)Fluoranthene Benzo(K)Fluoranthene Benzo(A)Pyrene Indeno(1,2,3-Cd)Pyrene Dibenzo(A,H)Anthracene Benzo(G,H,I)Perylene Metals ICP Arsenic Barium Cadmium Chromium Copper Lead Nickel Selenium Silver Zinc Result Qualifier Reporting Limit Units Batch Sample ID: 2409024-01 Date and Time of Analysis* --- U 5.00 ug/L B409077 --- U J 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 5.00 ug/L B409077 --- U 8.00 ug/L B409068 --- U 100 ug/L B409068 --- U 3.00 ug/L B409068 18.3 5.00 ug/L B409068 31.4 10.0 ug/L B409068 --- U 8.00 ug/L B409068 537 20.0 ug/L B409068 --- U 20.0 ug/L B409068 --- U 5.00 ug/L B409068 1510 20.0 ug/L B409068 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 6 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Analyte Field ID: Pretreated Effluent: Grab-Comp Mercury CVAA Mercury Sanitary Result Qualifier Reporting Limit Units Batch Sample ID: 2409024-01 Date and Time of Analysis* --- U 0.050 ug/L B409078 Chromium, Hexavalent Phenolics, Total Field ID: Pretreated Effluent: Grab GC Oil & Grease Sanitary Cyanide, Total Field ID: TRIP BLANK VOA GCMS Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane --- U 10.0 ug/L B409067 09/18/2024 16:32 96.5 20.0 ug/L B409076 Sample ID: 2409024-02 --- U 5.95 mg/L B409072 --- U L 20.0 ug/L B409083 Sample ID: 2409024-03 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 7 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Analyte Result Qualifier Reporting Limit Units Batch Date and Time of Analysis* Field ID: TRIP BLANK VOA GCMS Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Field ID: Lab Composite: 1st+2nd+3rd Set VOA GCMS Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Sample ID: 2409024-03 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 Sample ID: 2409024-07 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 6.26 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 8 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Analyte Field ID: Lab Composite: 1st+2nd+3rd Set VOA GCMS 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Result Qualifier Reporting Limit Units Batch Sample ID: 2409024-07 Date and Time of Analysis* --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 --- U 5.00 ug/L B409073 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 9 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 VOA GCMS - Quality Control Analyte Batch B409073 Blank (B409073-BLK1) Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Surrogate: 1,4-Difluorobenzene Surrogate: 2-Bromo-1-Chloropropane Surrogate: 1,4-Dichlorobutane Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L 101 ug/L 100.0 97.4 ug/L 100.0 94.0 ug/L 100.0 101 60-140 97.4 60-140 94.0 60-140 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 10 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 VOA GCMS - Quality Control Analyte Batch B409073 LCS (B409073-BS1) Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Surrogate: 1,4-Difluorobenzene Surrogate: 2-Bromo-1-Chloropropane Surrogate: 1,4-Dichlorobutane Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 63.7 5.00 ug/L 50.00 64.2 5.00 ug/L 50.00 66.3 5.00 ug/L 50.00 56.5 5.00 ug/L 50.00 65.6 5.00 ug/L 50.00 42.9 5.00 ug/L 50.00 43.8 5.00 ug/L 50.00 46.6 5.00 ug/L 50.00 46.6 5.00 ug/L 50.00 49.5 5.00 ug/L 50.00 53.7 5.00 ug/L 50.00 54.9 5.00 ug/L 50.00 57.9 5.00 ug/L 50.00 50.4 5.00 ug/L 50.00 47.8 5.00 ug/L 50.00 49.6 5.00 ug/L 50.00 49.8 5.00 ug/L 50.00 52.2 5.00 ug/L 50.00 52.8 5.00 ug/L 50.00 51.2 5.00 ug/L 50.00 55.7 5.00 ug/L 50.00 51.0 5.00 ug/L 50.00 50.8 5.00 ug/L 50.00 55.0 5.00 ug/L 50.00 51.3 5.00 ug/L 50.00 51.9 5.00 ug/L 50.00 53.6 5.00 ug/L 50.00 51.5 5.00 ug/L 50.00 52.6 5.00 ug/L 50.00 52.1 5.00 ug/L 50.00 53.0 5.00 ug/L 50.00 101 ug/L 100.0 101 ug/L 100.0 92.6 ug/L 100.0 127 19-205 128 5-195 133 15-185 113 40-160 131 50-150 85.8 50-150 87.6 60-140 93.1 60-140 93.1 70-130 99.1 70-130 107 70-135 110 70-130 116 70-130 101 70-130 95.7 65-135 99.2 65-135 99.6 35-165 104 65-135 106 25-175 102 70-130 111 50-150 102 70-130 102 70-130 110 70-135 103 65-135 104 60-140 107 70-130 103 60-140 105 70-130 104 65-135 106 65-135 101 60-140 101 60-140 92.6 60-140 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 11 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 VOA GCMS - Quality Control Analyte Batch B409073 LCS Dup (B409073-BSD1) Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Surrogate: 1,4-Difluorobenzene Surrogate: 2-Bromo-1-Chloropropane Surrogate: 1,4-Dichlorobutane Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 57.5 5.00 ug/L 50.00 58.1 5.00 ug/L 50.00 61.0 5.00 ug/L 50.00 49.1 5.00 ug/L 50.00 59.6 5.00 ug/L 50.00 39.1 5.00 ug/L 50.00 40.4 5.00 ug/L 50.00 44.2 5.00 ug/L 50.00 42.4 5.00 ug/L 50.00 45.3 5.00 ug/L 50.00 49.4 5.00 ug/L 50.00 50.2 5.00 ug/L 50.00 52.7 5.00 ug/L 50.00 47.2 5.00 ug/L 50.00 44.7 5.00 ug/L 50.00 45.6 5.00 ug/L 50.00 46.3 5.00 ug/L 50.00 49.2 5.00 ug/L 50.00 49.8 5.00 ug/L 50.00 48.1 5.00 ug/L 50.00 52.8 5.00 ug/L 50.00 49.0 5.00 ug/L 50.00 47.3 5.00 ug/L 50.00 52.0 5.00 ug/L 50.00 47.6 5.00 ug/L 50.00 48.4 5.00 ug/L 50.00 51.1 5.00 ug/L 50.00 48.7 5.00 ug/L 50.00 49.6 5.00 ug/L 50.00 48.8 5.00 ug/L 50.00 50.4 5.00 ug/L 50.00 101 ug/L 100.0 101 ug/L 100.0 91.6 ug/L 100.0 115 19-205 10.3 20 116 5-195 9.91 20 122 15-185 8.28 20 98.2 40-160 14.1 20 119 50-150 9.60 20 78.2 50-150 9.19 20 80.8 60-140 8.05 20 88.4 60-140 5.22 20 84.8 70-130 9.37 20 90.7 70-130 8.85 20 98.9 70-135 8.20 20 100 70-130 8.97 20 105 70-130 9.37 20 94.3 70-130 6.54 20 89.5 65-135 6.70 20 91.2 65-135 8.32 20 92.6 35-165 7.26 20 98.5 65-135 5.91 20 99.5 25-175 5.93 20 96.2 70-130 6.34 20 106 50-150 5.31 20 98.1 70-130 3.90 20 94.6 70-130 7.06 20 104 70-135 5.59 20 95.3 65-135 7.38 20 96.7 60-140 7.08 20 102 70-130 4.93 20 97.4 60-140 5.69 20 99.2 70-130 5.76 20 97.6 65-135 6.52 20 101 65-135 5.13 20 101 60-140 101 60-140 91.6 60-140 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 12 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 VOA GCMS - Quality Control Analyte Batch B409073 Matrix Spike (B409073-MS1) Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Surrogate: 1,4-Difluorobenzene Surrogate: 2-Bromo-1-Chloropropane Surrogate: 1,4-Dichlorobutane Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2409024-07 50.2 5.00 ug/L 57.0 5.00 ug/L 56.0 5.00 ug/L 49.5 5.00 ug/L 55.1 5.00 ug/L 52.5 5.00 ug/L 47.5 5.00 ug/L 46.0 5.00 ug/L 52.4 5.00 ug/L 49.0 5.00 ug/L 57.8 5.00 ug/L 54.6 5.00 ug/L 57.8 5.00 ug/L 48.7 5.00 ug/L 49.7 5.00 ug/L 50.9 5.00 ug/L 47.0 5.00 ug/L 51.5 5.00 ug/L 51.3 5.00 ug/L 51.1 5.00 ug/L 52.1 5.00 ug/L 47.4 5.00 ug/L 51.4 5.00 ug/L 50.3 5.00 ug/L 48.8 5.00 ug/L 49.9 5.00 ug/L 53.4 5.00 ug/L 46.7 5.00 ug/L 50.5 5.00 ug/L 50.5 5.00 ug/L 50.1 5.00 ug/L 102 ug/L 103 ug/L 91.2 ug/L 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 6.26 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 50.00 ND 100.0 100.0 100.0 100 19-273 114 49-251 112 21-242 98.9 14-230 110 17-181 105 52-234 94.9 69-221 92.0 40-160 105 54-156 97.9 59-155 103 51-138 109 52-162 116 70-140 97.4 49-155 99.5 37-151 102 70-157 94.1 74-210 103 35-155 103 80-227 102 47-150 104 17-183 94.9 52-150 103 64-148 101 53-149 97.7 37-160 99.7 37-162 107 45-169 93.4 46-157 101 59-156 101 18-190 100 18-190 102 60-140 103 60-140 91.2 60-140 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 13 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 VOA GCMS - Quality Control Analyte Batch B409073 Matrix Spike Dup (B409073-MSD1) Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride Acrylonitrile trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Benzene Trichloroethene 1,2-Dichloropropane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Surrogate: 1,4-Difluorobenzene Surrogate: 2-Bromo-1-Chloropropane Surrogate: 1,4-Dichlorobutane Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2409024-07 50.8 5.00 ug/L 50.00 ND 102 19-273 1.23 28 58.6 5.00 ug/L 50.00 ND 117 49-251 2.61 28 59.2 5.00 ug/L 50.00 ND 118 21-242 5.59 28 51.1 5.00 ug/L 50.00 ND 102 14-230 3.28 28 56.9 5.00 ug/L 50.00 ND 114 17-181 3.27 28 54.9 5.00 ug/L 50.00 ND 110 52-234 4.47 28 47.4 5.00 ug/L 50.00 ND 94.8 69-221 0.148 28 45.9 5.00 ug/L 50.00 ND 91.9 40-160 0.131 28 54.4 5.00 ug/L 50.00 ND 109 54-156 3.74 28 50.4 5.00 ug/L 50.00 ND 101 59-155 2.88 28 59.5 5.00 ug/L 50.00 6.26 107 51-138 3.32 28 56.6 5.00 ug/L 50.00 ND 113 52-162 3.63 28 60.6 5.00 ug/L 50.00 ND 121 70-140 4.66 28 50.5 5.00 ug/L 50.00 ND 101 49-155 3.71 28 50.2 5.00 ug/L 50.00 ND 100 37-151 0.940 28 52.0 5.00 ug/L 50.00 ND 104 70-157 2.16 28 48.3 5.00 ug/L 50.00 ND 96.6 74-210 2.71 28 52.6 5.00 ug/L 50.00 ND 105 35-155 2.11 28 51.8 5.00 ug/L 50.00 ND 104 80-227 1.01 28 52.2 5.00 ug/L 50.00 ND 104 47-150 2.03 28 53.1 5.00 ug/L 50.00 ND 106 17-183 1.92 28 48.6 5.00 ug/L 50.00 ND 97.3 52-150 2.48 28 53.3 5.00 ug/L 50.00 ND 107 64-148 3.63 28 52.2 5.00 ug/L 50.00 ND 104 53-149 3.84 28 50.2 5.00 ug/L 50.00 ND 100 37-160 2.73 28 50.9 5.00 ug/L 50.00 ND 102 37-162 2.01 28 55.2 5.00 ug/L 50.00 ND 110 45-169 3.43 28 48.1 5.00 ug/L 50.00 ND 96.3 46-157 3.02 28 51.7 5.00 ug/L 50.00 ND 103 59-156 2.35 28 51.9 5.00 ug/L 50.00 ND 104 18-190 2.70 28 51.5 5.00 ug/L 50.00 ND 103 18-190 2.77 28 101 ug/L 100.0 101 60-140 102 ug/L 100.0 102 60-140 91.4 ug/L 100.0 91.4 60-140 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 14 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B409077 Blank (B409077-BLK1) 1,4-Dioxane N-Nitrosodimethylamine Benzaldehyde Phenol Bis(2-Chloroethyl)Ether 2-Chlorophenol 2-Methylphenol Bis(2-Chloroisopropyl)Ether Acetophenone 4-Methylphenol N-Nitroso-Di-N-Propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Bis(-2-Chloroethoxy)Methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Hexachlorobutadiene Naphthalene 4-Chloroaniline Caprolactam 4-Chloro-3-Methylphenol 2-Methylnaphthalene 1,2,4,5-Tetrachlorobenzene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol Biphenyl 2-Chloronaphthalene 2-Nitroaniline Dimethyl Phthalate Acenaphthylene 2,6-Dinitrotoluene --- U 2.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD Limit Page 15 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B409077 Blank (B409077-BLK1) 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2,3,4,6-Tetrachlorophenol Fluorene Diethylphthalate 4-Chlorophenyl-Phenylether 4-Nitroaniline 4,6-Dinitro-2-Methylphenol N-Nitrosodiphenylamine 4-Bromophenyl-Phenylether Hexachlorobenzene Atrazine Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butyl Phthalate Fluoranthene Pyrene Butylbenzylphthalate 3,3'- Dichlorobenzidine Benzo(A)Anthracene Chrysene Bis(2-Ethylhexyl)Phthalate Di-N-Octyl Phthalate Benzo(B)Fluoranthene Benzo(K)Fluoranthene Benzo(A)Pyrene Indeno(1,2,3-Cd)Pyrene Dibenzo(A,H)Anthracene Benzo(G,H,I)Perylene --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L --- U 5.00 ug/L U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD Limit Page 16 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Batch B409077 Blank (B409077-BLK1) Surrogate: 1,4-Dioxane-D8 Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 LCS (B409077-BS1) 1,4-Dioxane N-Nitrosodimethylamine Benzaldehyde Phenol Bis(2-Chloroethyl)Ether 2-Chlorophenol 2-Methylphenol Bis(2-Chloroisopropyl)Ether Acetophenone 4-Methylphenol N-Nitroso-Di-N-Propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Bis(-2-Chloroethoxy)Methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Hexachlorobutadiene Naphthalene 4-Chloroaniline Caprolactam 4-Chloro-3-Methylphenol 2-Methylnaphthalene Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 14.2 ug/L 50.00 23.9 ug/L 50.00 12.6 ug/L 50.00 29.0 ug/L 50.00 28.6 ug/L 50.00 30.5 ug/L 50.00 48.8 ug/L 50.00 49.6 ug/L 50.00 16.8 2.00 ug/L 50.00 19.2 5.00 ug/L 50.00 36.0 5.00 ug/L 50.00 13.0 5.00 ug/L 50.00 29.8 5.00 ug/L 50.00 27.6 5.00 ug/L 50.00 26.8 5.00 ug/L 50.00 29.4 5.00 ug/L 50.00 27.4 5.00 ug/L 50.00 21.0 5.00 ug/L 50.00 27.8 5.00 ug/L 50.00 22.6 5.00 ug/L 50.00 30.7 5.00 ug/L 50.00 29.4 5.00 ug/L 50.00 28.7 5.00 ug/L 50.00 25.4 5.00 ug/L 50.00 29.8 5.00 ug/L 50.00 28.9 5.00 ug/L 50.00 24.7 5.00 ug/L 50.00 23.9 5.00 ug/L 50.00 27.6 5.00 ug/L 50.00 10.7 5.00 ug/L 50.00 6.16 5.00 ug/L 50.00 30.0 5.00 ug/L 50.00 27.1 5.00 ug/L 50.00 28.4 20-120 47.8 30-120 25.2 20-120 58.0 30-120 57.1 30-120 60.9 20-120 97.7 30-120 99.2 30-120 33.5 7-106 38.4 17-127 71.9 8-154 26.0 5-112 59.6 12-158 55.2 23-134 53.7 40-112 58.7 36-166 54.9 43-121 42.1 34-116 55.6 43-230 45.2 40-120 61.4 35-180 58.7 21-196 57.5 29-182 50.7 32-120 59.5 33-184 57.8 39-135 49.4 44-142 47.8 24-120 55.3 21-133 21.4 26-172 12.3 0-143 59.9 22-147 54.2 41-126 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 17 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B409077 LCS (B409077-BS1) 1,2,4,5-Tetrachlorobenzene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol Biphenyl 2-Chloronaphthalene 2-Nitroaniline Dimethyl Phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2,3,4,6-Tetrachlorophenol Fluorene Diethylphthalate 4-Chlorophenyl-Phenylether 4-Nitroaniline 4,6-Dinitro-2-Methylphenol N-Nitrosodiphenylamine 4-Bromophenyl-Phenylether Hexachlorobenzene Atrazine Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butyl Phthalate Fluoranthene Pyrene Butylbenzylphthalate 3,3'- Dichlorobenzidine 29.6 5.00 ug/L 50.00 14.2 5.00 ug/L 50.00 29.8 5.00 ug/L 50.00 29.9 5.00 ug/L 50.00 29.9 5.00 ug/L 50.00 30.1 5.00 ug/L 50.00 31.5 5.00 ug/L 50.00 20.9 5.00 ug/L 50.00 25.1 5.00 ug/L 50.00 35.0 5.00 ug/L 50.00 12.1 5.00 ug/L 50.00 31.2 5.00 ug/L 50.00 12.9 5.00 ug/L 50.00 14.2 5.00 ug/L 50.00 34.3 5.00 ug/L 50.00 38.7 5.00 ug/L 50.00 36.6 5.00 ug/L 50.00 36.8 5.00 ug/L 50.00 32.1 5.00 ug/L 50.00 34.7 5.00 ug/L 50.00 22.6 5.00 ug/L 50.00 24.8 5.00 ug/L 50.00 9.36 5.00 ug/L 50.00 35.8 5.00 ug/L 50.00 38.6 5.00 ug/L 50.00 34.3 5.00 ug/L 50.00 28.3 5.00 ug/L 50.00 39.6 5.00 ug/L 50.00 37.7 5.00 ug/L 50.00 28.4 5.00 ug/L 50.00 40.6 5.00 ug/L 50.00 39.7 5.00 ug/L 50.00 41.0 5.00 ug/L 50.00 36.8 5.00 ug/L 50.00 11.6 5.00 ug/L 50.00 59.3 36-124 28.4 15-76 59.5 37-144 59.8 40-129 59.9 41-122 60.2 60-120 63.0 35-136 41.7 38-120 50.2 33-145 70.0 50-158 24.1 31-141 62.4 47-145 25.8 21-191 28.4 9-132 68.5 40-131 77.4 39-139 73.3 38-136 73.7 59-121 64.3 31-114 69.4 25-158 45.1 39-123 49.7 17-181 18.7 79-139 71.6 53-127 77.3 35-152 68.5 23-152 56.5 14-176 79.2 54-120 75.3 27-133 56.8 38-131 81.3 1-120 79.3 26-137 82.0 52-120 73.7 38-152 23.2 38-262 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD Limit Page 18 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Batch B409077 LCS (B409077-BS1) Benzo(A)Anthracene Chrysene Bis(2-Ethylhexyl)Phthalate Di-N-Octyl Phthalate Benzo(B)Fluoranthene Benzo(K)Fluoranthene Benzo(A)Pyrene Indeno(1,2,3-Cd)Pyrene Dibenzo(A,H)Anthracene Benzo(G,H,I)Perylene Surrogate: 1,4-Dioxane-D8 Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 LCS Dup (B409077-BSD1) 1,4-Dioxane N-Nitrosodimethylamine Benzaldehyde Phenol Bis(2-Chloroethyl)Ether 2-Chlorophenol 2-Methylphenol Bis(2-Chloroisopropyl)Ether Acetophenone 4-Methylphenol N-Nitroso-Di-N-Propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 36.1 5.00 ug/L 50.00 37.4 5.00 ug/L 50.00 38.9 5.00 ug/L 50.00 36.8 5.00 ug/L 50.00 39.8 5.00 ug/L 50.00 39.2 5.00 ug/L 50.00 32.4 5.00 ug/L 50.00 46.4 5.00 ug/L 50.00 53.6 5.00 ug/L 50.00 41.8 5.00 ug/L 50.00 15.7 ug/L 50.00 14.7 ug/L 50.00 12.5 ug/L 50.00 30.5 ug/L 50.00 29.8 ug/L 50.00 31.6 ug/L 50.00 35.0 ug/L 50.00 36.2 ug/L 50.00 22.6 2.00 ug/L 50.00 27.3 5.00 ug/L 50.00 10.2 5.00 ug/L 50.00 18.8 5.00 ug/L 50.00 41.0 5.00 ug/L 50.00 39.2 5.00 ug/L 50.00 36.8 5.00 ug/L 50.00 39.6 5.00 ug/L 50.00 38.0 5.00 ug/L 50.00 30.2 5.00 ug/L 50.00 39.6 5.00 ug/L 50.00 33.5 5.00 ug/L 50.00 42.9 5.00 ug/L 50.00 41.6 5.00 ug/L 50.00 43.0 5.00 ug/L 50.00 72.1 33-143 74.7 17-168 77.9 8-158 73.6 4-146 79.6 24-159 78.4 11-162 64.9 17-163 92.7 39-171 107 33-227 83.6 35-219 31.4 20-120 29.3 30-120 25.1 20-120 60.9 30-120 59.6 30-120 63.1 20-120 70.0 30-120 72.4 30-120 45.2 7-106 29.7 30 54.6 17-127 34.9 30 20.5 8-154 111 30 37.7 5-112 36.5 30 81.9 12-158 31.5 30 78.4 23-134 34.8 30 73.5 40-112 31.2 30 79.3 36-166 29.8 30 75.9 43-121 32.2 30 60.4 34-116 35.7 30 79.3 43-230 35.1 30 66.9 40-120 38.7 30 85.8 35-180 33.2 30 83.1 21-196 34.4 30 86.0 29-182 39.8 30 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 19 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B409077 LCS Dup (B409077-BSD1) 2,4-Dimethylphenol Bis(-2-Chloroethoxy)Methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Hexachlorobutadiene Naphthalene 4-Chloroaniline Caprolactam 4-Chloro-3-Methylphenol 2-Methylnaphthalene 1,2,4,5-Tetrachlorobenzene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol Biphenyl 2-Chloronaphthalene 2-Nitroaniline Dimethyl Phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2,3,4,6-Tetrachlorophenol Fluorene Diethylphthalate 4-Chlorophenyl-Phenylether 4-Nitroaniline 4,6-Dinitro-2-Methylphenol N-Nitrosodiphenylamine 4-Bromophenyl-Phenylether Hexachlorobenzene 23.8 5.00 ug/L 50.00 41.2 5.00 ug/L 50.00 40.4 5.00 ug/L 50.00 34.8 5.00 ug/L 50.00 34.2 5.00 ug/L 50.00 39.1 5.00 ug/L 50.00 28.0 5.00 ug/L 50.00 11.1 5.00 ug/L 50.00 41.3 5.00 ug/L 50.00 36.6 5.00 ug/L 50.00 39.1 5.00 ug/L 50.00 21.6 5.00 ug/L 50.00 41.5 5.00 ug/L 50.00 41.4 5.00 ug/L 50.00 39.4 5.00 ug/L 50.00 39.9 5.00 ug/L 50.00 45.4 5.00 ug/L 50.00 27.8 5.00 ug/L 50.00 35.0 5.00 ug/L 50.00 45.9 5.00 ug/L 50.00 45.1 5.00 ug/L 50.00 40.9 5.00 ug/L 50.00 23.2 5.00 ug/L 50.00 20.6 5.00 ug/L 50.00 43.8 5.00 ug/L 50.00 51.7 5.00 ug/L 50.00 52.7 5.00 ug/L 50.00 49.0 5.00 ug/L 50.00 42.8 5.00 ug/L 50.00 47.0 5.00 ug/L 50.00 57.1 5.00 ug/L 50.00 42.6 5.00 ug/L 50.00 55.1 5.00 ug/L 50.00 46.9 5.00 ug/L 50.00 48.5 5.00 ug/L 50.00 47.6 32-120 6.39 82.5 33-184 32.3 80.9 39-135 33.4 69.6 44-142 33.8 68.4 24-120 35.5 78.2 21-133 34.4 56.0 26-172 89.4 22.2 0-143 57.2 82.6 22-147 31.8 73.3 41-126 30.0 78.1 36-124 27.4 43.1 15-76 41.2 83.1 37-144 33.0 82.9 40-129 32.3 78.8 41-122 27.4 79.7 60-120 28.0 90.7 35-136 36.1 55.6 38-120 28.5 70.1 33-145 33.1 91.7 50-158 26.9 90.2 31-141 116 81.7 47-145 26.8 46.4 21-191 57.2 41.1 9-132 36.8 87.7 40-131 24.5 103 39-139 28.7 105 38-136 35.9 98.0 59-121 28.3 85.6 31-114 28.5 94.0 25-158 30.1 114 39-123 86.7 85.2 17-181 52.7 110 79-139 142 93.7 53-127 26.7 97.0 35-152 22.7 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD Limit 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 Page 20 of 32 Analyte Batch B409077 LCS Dup (B409077-BSD1) Atrazine Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butyl Phthalate Fluoranthene Pyrene Butylbenzylphthalate 3,3'- Dichlorobenzidine Benzo(A)Anthracene Chrysene Bis(2-Ethylhexyl)Phthalate Di-N-Octyl Phthalate Benzo(B)Fluoranthene Benzo(K)Fluoranthene Benzo(A)Pyrene Indeno(1,2,3-Cd)Pyrene Dibenzo(A,H)Anthracene Benzo(G,H,I)Perylene Surrogate: 1,4-Dioxane-D8 Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 46.1 5.00 ug/L 50.00 40.9 5.00 ug/L 50.00 50.2 5.00 ug/L 50.00 48.3 5.00 ug/L 50.00 47.8 5.00 ug/L 50.00 51.6 5.00 ug/L 50.00 49.4 5.00 ug/L 50.00 51.1 5.00 ug/L 50.00 47.2 5.00 ug/L 50.00 47.1 5.00 ug/L 50.00 44.9 5.00 ug/L 50.00 46.0 5.00 ug/L 50.00 51.4 5.00 ug/L 50.00 48.6 5.00 ug/L 50.00 50.1 5.00 ug/L 50.00 49.3 5.00 ug/L 50.00 43.1 5.00 ug/L 50.00 57.7 5.00 ug/L 50.00 66.9 5.00 ug/L 50.00 51.5 5.00 ug/L 50.00 21.2 ug/L 50.00 36.2 ug/L 50.00 17.8 ug/L 50.00 40.8 ug/L 50.00 40.6 ug/L 50.00 41.7 ug/L 50.00 45.0 ug/L 50.00 43.8 ug/L 50.00 92.2 23-152 29.4 30 81.7 14-176 36.4 30 100 54-120 23.7 30 96.6 27-133 24.8 30 95.6 38-131 50.9 30 103 1-120 23.8 30 98.7 26-137 21.8 30 102 52-120 21.9 30 94.4 38-152 24.7 30 94.1 38-262 121 30 89.8 33-143 21.9 30 92.0 17-168 20.8 30 103 8-158 27.5 30 97.1 4-146 27.5 30 100 24-159 22.9 30 98.5 11-162 22.8 30 86.1 17-163 28.2 30 115 39-171 21.8 30 134 33-227 22.0 30 103 35-219 20.7 30 42.5 20-120 72.5 30-120 35.7 20-120 81.5 30-120 81.1 30-120 83.4 20-120 90.0 30-120 87.6 30-120 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 21 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B409077 Matrix Spike (B409077-MS1) 1,4-Dioxane N-Nitrosodimethylamine Benzaldehyde Phenol Bis(2-Chloroethyl)Ether 2-Chlorophenol 2-Methylphenol Bis(2-Chloroisopropyl)Ether Acetophenone 4-Methylphenol N-Nitroso-Di-N-Propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Bis(-2-Chloroethoxy)Methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Hexachlorobutadiene Naphthalene 4-Chloroaniline Caprolactam 4-Chloro-3-Methylphenol 2-Methylnaphthalene 1,2,4,5-Tetrachlorobenzene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol Biphenyl 2-Chloronaphthalene 2-Nitroaniline Dimethyl Phthalate Acenaphthylene 2,6-Dinitrotoluene Source: 2409024-01 25.2 1.95 ug/L 27.7 4.88 ug/L 19.5 4.88 ug/L 21.8 4.88 ug/L 40.2 4.88 ug/L 41.0 4.88 ug/L 39.0 4.88 ug/L 38.9 4.88 ug/L 39.4 4.88 ug/L 39.2 4.88 ug/L 42.4 4.88 ug/L 33.4 4.88 ug/L 43.4 4.88 ug/L 41.6 4.88 ug/L 46.1 4.88 ug/L 77.4 4.88 ug/L 40.6 4.88 ug/L 43.0 4.88 ug/L 36.7 4.88 ug/L 34.7 4.88 ug/L 38.6 4.88 ug/L 12.9 4.88 ug/L 19.2 4.88 ug/L 42.5 4.88 ug/L 40.1 4.88 ug/L 39.6 4.88 ug/L 39.3 4.88 ug/L 44.3 4.88 ug/L 43.3 4.88 ug/L 40.5 4.88 ug/L 39.8 4.88 ug/L 48.3 4.88 ug/L 32.2 4.88 ug/L 42.0 4.88 ug/L 45.9 4.88 ug/L 48.78 2.29 48.78 ND 48.78 ND 48.78 2.50 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 33.5 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 3.92 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 47.0 7-106 56.8 17-127 39.9 8-154 39.6 5-112 82.4 12-158 84.1 23-134 80.0 40-112 79.8 36-166 80.7 43-121 80.4 34-116 87.0 43-230 68.5 40-120 88.9 35-180 85.2 21-196 94.5 29-182 90.0 32-120 83.2 33-184 88.2 39-135 75.2 44-142 71.2 24-120 79.2 21-133 26.4 26-172 31.3 0-143 87.2 22-147 82.1 41-126 81.1 36-124 80.6 15-76 90.7 37-144 88.8 40-129 83.0 41-122 81.5 60-120 98.9 35-136 66.1 38-120 86.2 33-145 94.1 50-158 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD Limit Page 22 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B409077 Matrix Spike (B409077-MS1) 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2,3,4,6-Tetrachlorophenol Fluorene Diethylphthalate 4-Chlorophenyl-Phenylether 4-Nitroaniline 4,6-Dinitro-2-Methylphenol N-Nitrosodiphenylamine 4-Bromophenyl-Phenylether Hexachlorobenzene Atrazine Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butyl Phthalate Fluoranthene Pyrene Butylbenzylphthalate 3,3'- Dichlorobenzidine Benzo(A)Anthracene Chrysene Bis(2-Ethylhexyl)Phthalate Di-N-Octyl Phthalate Benzo(B)Fluoranthene Benzo(K)Fluoranthene Benzo(A)Pyrene Indeno(1,2,3-Cd)Pyrene Dibenzo(A,H)Anthracene Benzo(G,H,I)Perylene Source: 2409024-01 34.5 4.88 ug/L 40.8 4.88 ug/L 61.1 4.88 ug/L 23.7 4.88 ug/L 39.7 4.88 ug/L 47.2 4.88 ug/L 52.3 4.88 ug/L 43.1 4.88 ug/L 41.0 4.88 ug/L 41.8 4.88 ug/L 48.3 4.88 ug/L 54.6 4.88 ug/L 44.5 4.88 ug/L 42.4 4.88 ug/L 41.2 4.88 ug/L 43.6 4.88 ug/L 55.9 4.88 ug/L 43.8 4.88 ug/L 42.3 4.88 ug/L 46.3 4.88 ug/L 50.0 4.88 ug/L 47.3 4.88 ug/L 47.4 4.88 ug/L 58.4 4.88 ug/L 4.45 4.88 ug/L 38.0 4.88 ug/L 39.2 4.88 ug/L 58.7 4.88 ug/L 61.6 4.88 ug/L 46.8 4.88 ug/L 42.6 4.88 ug/L 45.7 4.88 ug/L 51.9 4.88 ug/L 50.2 4.88 ug/L 50.2 4.88 ug/L 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 48.78 ND 70.8 31-141 83.6 47-145 125 21-191 48.5 9-132 81.4 40-131 96.7 39-139 107 38-136 88.4 59-121 84.1 31-114 85.7 25-158 99.0 39-123 112 17-181 91.2 79-139 87.0 53-127 84.6 35-152 89.3 23-152 115 14-176 89.9 54-120 86.7 27-133 95.0 38-131 103 1-120 97.0 26-137 97.2 52-120 120 38-152 9.12 38-262 78.0 33-143 80.4 17-168 120 8-158 126 4-146 95.9 24-159 87.4 11-162 93.6 17-163 106 39-171 103 33-227 103 35-219 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD Limit Page 23 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Batch B409077 Matrix Spike (B409077-MS1) Surrogate: 1,4-Dioxane-D8 Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 Matrix Spike Dup (B409077-MSD1) 1,4-Dioxane N-Nitrosodimethylamine Benzaldehyde Phenol Bis(2-Chloroethyl)Ether 2-Chlorophenol 2-Methylphenol Bis(2-Chloroisopropyl)Ether Acetophenone 4-Methylphenol N-Nitroso-Di-N-Propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Bis(-2-Chloroethoxy)Methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Hexachlorobutadiene Naphthalene 4-Chloroaniline Caprolactam 4-Chloro-3-Methylphenol 2-Methylnaphthalene Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2409024-01 21.3 ug/L 30.5 ug/L 18.0 ug/L 40.0 ug/L 39.7 ug/L 42.5 ug/L 38.6 ug/L 30.9 ug/L 48.78 48.78 48.78 48.78 48.78 48.78 48.78 48.78 43.6 20-120 62.6 30-120 36.9 20-120 82.1 30-120 81.4 30-120 87.2 20-120 79.2 30-120 63.4 30-120 Source: 2409024-01 13.2 1.98 ug/L 49.50 2.29 22.0 7-106 62.7 24 15.5 4.95 ug/L 49.50 ND 31.4 17-127 56.3 24 12.6 4.95 ug/L 49.50 ND 25.5 8-154 42.7 24 16.5 4.95 ug/L 49.50 2.50 28.3 5-112 27.8 24 24.0 4.95 ug/L 49.50 ND 48.5 12-158 50.4 24 28.3 4.95 ug/L 49.50 ND 57.1 23-134 36.8 24 30.4 4.95 ug/L 49.50 ND 61.4 40-112 24.9 24 23.4 4.95 ug/L 49.50 ND 47.3 36-166 49.8 24 26.2 4.95 ug/L 49.50 ND 52.9 43-121 40.3 24 32.0 4.95 ug/L 49.50 ND 64.6 34-116 20.3 24 29.3 4.95 ug/L 49.50 ND 59.1 43-230 36.7 24 14.0 4.95 ug/L 49.50 ND 28.3 40-120 82.0 24 27.9 4.95 ug/L 49.50 ND 56.4 35-180 43.4 24 30.3 4.95 ug/L 49.50 ND 61.3 21-196 31.2 24 32.8 4.95 ug/L 49.50 ND 66.3 29-182 33.7 24 64.6 4.95 ug/L 49.50 33.5 62.8 32-120 18.0 24 28.7 4.95 ug/L 49.50 ND 58.0 33-184 34.3 24 36.1 4.95 ug/L 49.50 ND 73.0 39-135 17.4 24 20.5 4.95 ug/L 49.50 ND 41.4 44-142 56.6 24 17.7 4.95 ug/L 49.50 ND 35.8 24-120 64.7 24 23.8 4.95 ug/L 49.50 ND 48.1 21-133 47.4 24 11.7 4.95 ug/L 49.50 ND 23.6 26-172 9.64 24 18.0 4.95 ug/L 49.50 3.92 28.5 0-143 6.23 24 40.0 4.95 ug/L 49.50 ND 80.7 22-147 6.22 24 27.7 4.95 ug/L 49.50 ND 56.0 41-126 36.4 24 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 24 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Level Source Result %REC %REC Limits Batch B409077 Matrix Spike Dup (B409077-MSD1) 1,2,4,5-Tetrachlorobenzene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol Biphenyl 2-Chloronaphthalene 2-Nitroaniline Dimethyl Phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2,3,4,6-Tetrachlorophenol Fluorene Diethylphthalate 4-Chlorophenyl-Phenylether 4-Nitroaniline 4,6-Dinitro-2-Methylphenol N-Nitrosodiphenylamine 4-Bromophenyl-Phenylether Hexachlorobenzene Atrazine Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butyl Phthalate Fluoranthene Pyrene Butylbenzylphthalate 3,3'- Dichlorobenzidine Source: 2409024-01 27.9 4.95 ug/L 23.4 4.95 ug/L 40.8 4.95 ug/L 41.1 4.95 ug/L 31.6 4.95 ug/L 30.3 4.95 ug/L 45.3 4.95 ug/L 28.7 4.95 ug/L 35.2 4.95 ug/L 42.6 4.95 ug/L 32.4 4.95 ug/L 34.2 4.95 ug/L 55.7 4.95 ug/L 23.6 4.95 ug/L 34.5 4.95 ug/L 46.6 4.95 ug/L 52.2 4.95 ug/L 40.7 4.95 ug/L 39.5 4.95 ug/L 39.4 4.95 ug/L 48.0 4.95 ug/L 53.2 4.95 ug/L 43.5 4.95 ug/L 41.4 4.95 ug/L 40.5 4.95 ug/L 42.7 4.95 ug/L 55.3 4.95 ug/L 43.4 4.95 ug/L 42.1 4.95 ug/L 45.8 4.95 ug/L 49.7 4.95 ug/L 47.0 4.95 ug/L 47.1 4.95 ug/L 57.4 4.95 ug/L 4.38 4.95 ug/L 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 49.50 ND 56.3 36-124 47.3 15-76 82.5 37-144 83.0 40-129 63.8 41-122 61.2 60-120 91.5 35-136 57.9 38-120 71.1 33-145 86.1 50-158 65.4 31-141 69.0 47-145 113 21-191 47.6 9-132 69.6 40-131 94.1 39-139 105 38-136 82.2 59-121 79.8 31-114 79.6 25-158 97.0 39-123 107 17-181 87.8 79-139 83.7 53-127 81.8 35-152 86.3 23-152 112 14-176 87.6 54-120 85.0 27-133 92.5 38-131 100 1-120 95.0 26-137 95.2 52-120 116 38-152 8.84 38-262 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 RPD 34.6 50.8 8.04 5.21 24.7 26.9 6.32 11.7 17.7 7.36 6.45 17.6 9.13 0.397 14.2 1.34 0.181 5.77 3.80 5.89 0.607 2.65 2.32 2.37 1.89 1.94 1.04 1.10 0.576 1.15 0.734 0.588 0.626 1.82 1.64 RPD Limit 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 Page 25 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 NVOA GCMS - Quality Control Analyte Batch B409077 Matrix Spike Dup (B409077-MSD1) Benzo(A)Anthracene Chrysene Bis(2-Ethylhexyl)Phthalate Di-N-Octyl Phthalate Benzo(B)Fluoranthene Benzo(K)Fluoranthene Benzo(A)Pyrene Indeno(1,2,3-Cd)Pyrene Dibenzo(A,H)Anthracene Benzo(G,H,I)Perylene Surrogate: 1,4-Dioxane-D8 Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2409024-01 37.8 4.95 ug/L 49.50 ND 76.3 33-143 0.756 24 38.8 4.95 ug/L 49.50 ND 78.3 17-168 1.22 24 57.7 4.95 ug/L 49.50 ND 117 8-158 1.62 24 60.9 4.95 ug/L 49.50 ND 123 4-146 1.11 24 45.6 4.95 ug/L 49.50 ND 92.0 24-159 2.61 24 42.0 4.95 ug/L 49.50 ND 84.9 11-162 1.40 24 45.3 4.95 ug/L 49.50 ND 91.5 17-163 0.816 24 50.8 4.95 ug/L 49.50 ND 103 39-171 2.03 24 49.3 4.95 ug/L 49.50 ND 99.5 33-227 1.88 24 48.7 4.95 ug/L 49.50 ND 98.4 35-219 2.98 24 10.8 ug/L 49.50 21.9 20-120 20.1 ug/L 49.50 40.6 30-120 13.7 ug/L 49.50 27.6 20-120 26.1 ug/L 49.50 52.7 30-120 25.3 ug/L 49.50 51.1 30-120 39.5 ug/L 49.50 79.8 20-120 38.4 ug/L 49.50 77.6 30-120 29.9 ug/L 49.50 60.3 30-120 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 26 of 32 Analyte Batch B409072 Blank (B409072-BLK1) Oil & Grease LCS (B409072-BS1) Oil & Grease LCS Dup (B409072-BSD1) Oil & Grease Matrix Spike (B409072-MS1) Oil & Grease UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 GC - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 5.00 mg/L 35.9 5.00 mg/L 40.00 89.8 78-114 37.0 5.00 mg/L 40.00 92.5 78-114 3.02 20 Source: 2409024-02 44.0 5.81 mg/L 46.51 3.60 86.9 78-114 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 27 of 32 Analyte Batch B409068 Blank (B409068-BLK1) Arsenic Barium Cadmium Chromium Copper Lead Nickel Selenium Silver Zinc LCS (B409068-BS1) Arsenic Barium Cadmium Chromium Copper Lead Nickel Selenium Silver Zinc LCS Dup (B409068-BSD1) Arsenic Barium Cadmium Chromium Copper Lead Nickel Selenium Silver Zinc UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Metals ICP - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 8.00 ug/L --- U 100 ug/L --- U 3.00 ug/L --- U 5.00 ug/L --- U 10.0 ug/L --- U 8.00 ug/L --- U 20.0 ug/L --- U 20.0 ug/L --- U 5.00 ug/L --- U 20.0 ug/L 200 8.00 ug/L 200.0 199 100 ug/L 200.0 199 3.00 ug/L 200.0 202 5.00 ug/L 200.0 197 10.0 ug/L 200.0 202 8.00 ug/L 200.0 201 20.0 ug/L 200.0 201 20.0 ug/L 200.0 201 5.00 ug/L 200.0 206 20.0 ug/L 200.0 203 8.00 ug/L 200.0 204 100 ug/L 200.0 204 3.00 ug/L 200.0 207 5.00 ug/L 200.0 201 10.0 ug/L 200.0 206 8.00 ug/L 200.0 206 20.0 ug/L 200.0 207 20.0 ug/L 200.0 206 5.00 ug/L 200.0 211 20.0 ug/L 200.0 100 85-115 99.6 85-115 99.5 85-115 101 85-115 98.3 85-115 101 85-115 101 85-115 100 85-115 101 85-115 103 85-115 101 85-115 1.44 20 102 85-115 2.51 20 102 85-115 2.43 20 103 85-115 2.28 20 100 85-115 2.14 20 103 85-115 1.76 20 103 85-115 2.49 20 104 85-115 3.15 20 103 85-115 2.16 20 105 85-115 2.11 20 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 28 of 32 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Metals ICP - Quality Control Analyte Batch B409068 Matrix Spike (B409068-MS1) Arsenic Barium Cadmium Chromium Copper Lead Nickel Selenium Silver Zinc Matrix Spike Dup (B409068-MSD1) Arsenic Barium Cadmium Chromium Copper Lead Nickel Selenium Silver Zinc Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2409024-01 210 8.00 ug/L 211 100 ug/L 206 3.00 ug/L 225 5.00 ug/L 247 10.0 ug/L 207 8.00 ug/L 752 20.0 ug/L 208 20.0 ug/L 207 5.00 ug/L 1740 20.0 ug/L 200.0 ND 200.0 6.63 200.0 2.67 200.0 18.3 200.0 31.4 200.0 ND 200.0 537 200.0 ND 200.0 ND 200.0 1510 105 80-120 102 80-120 102 80-120 103 80-120 108 80-120 104 80-120 107 80-120 104 80-120 104 80-120 112 80-120 Source: 2409024-01 202 40.0 ug/L 200.0 ND 101 80-120 3.78 10 201 500 ug/L 200.0 ND 101 80-120 4.90 10 203 15.0 ug/L 200.0 2.67 100 80-120 1.43 10 219 25.0 ug/L 200.0 18.3 100 80-120 2.66 10 231 50.0 ug/L 200.0 31.4 99.8 80-120 6.61 10 204 40.0 ug/L 200.0 ND 102 80-120 1.88 10 736 100 ug/L 200.0 537 99.3 80-120 2.19 10 200 100 ug/L 200.0 ND 100 80-120 3.76 10 200 25.0 ug/L 200.0 ND 99.8 80-120 3.93 10 1710 100 ug/L 200.0 1510 96.8 80-120 1.74 10 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 29 of 32 Analyte Batch B409078 Blank (B409078-BLK1) Mercury LCS (B409078-BS1) Mercury LCS Dup (B409078-BSD1) Mercury Matrix Spike (B409078-MS1) Mercury UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Mercury CVAA - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 0.050 ug/L 0.913 0.050 ug/L 1.000 91.3 85-115 0.905 0.050 ug/L 1.000 90.5 85-115 0.880 20 Source: 2409024-01 0.931 0.050 ug/L 1.000 ND 93.1 80-120 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 30 of 32 Analyte Batch B409067 Blank (B409067-BLK1) Chromium, Hexavalent Blank (B409067-BLK2) Chromium, Hexavalent LCS (B409067-BS1) Chromium, Hexavalent LCS Dup (B409067-BSD1) Chromium, Hexavalent Matrix Spike (B409067-MS1) Chromium, Hexavalent Batch B409076 Blank (B409076-BLK1) Phenolics, Total LCS (B409076-BS1) Phenolics, Total LCS Dup (B409076-BSD1) Phenolics, Total Matrix Spike (B409076-MS1) Phenolics, Total UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 10.0 ug/L --- U 10.0 ug/L 536 10.0 ug/L 498.0 108 85-115 541 10.0 ug/L 498.0 109 85-115 0.9 20 Source: 2409024-01 188 10.0 ug/L 200.0 ND 94 80-120 --- U 20.0 ug/L 1770 200 ug/L 1670 106 90-110 1790 200 ug/L 1670 107 90-110 1 20 Source: 2409003-02 224 20.0 ug/L 200.0 22.3 101 90-110 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 31 of 32 Analyte Batch B409076 Matrix Spike (B409076-MS2) Phenolics, Total Matrix Spike (B409076-MS3) Phenolics, Total Batch B409083 Blank (B409083-BLK1) Cyanide, Total LCS (B409083-BS1) Cyanide, Total LCS Dup (B409083-BSD1) Cyanide, Total Matrix Spike (B409083-MS1) Cyanide, Total UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Alta Metal Finishing, Inc. - 2409024 Project Number: 2409024 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2409009-01 213 20.0 ug/L Source: 2409024-01 279 40.0 ug/L 200.0 ND 200.0 96.5 106 90-110 91 90-110 --- U 20.0 ug/L 624 100 ug/L 673.0 93 90-110 612 100 ug/L 673.0 91 90-110 2 20 Source: 2409024-02 169 20.0 ug/L 200.0 ND 85 90-110 U.S.E.P.A Region 2 Laboratory NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 10/4/2024 Page 32 of 32 Attachment #4. Alta Metal Finishing, Inc. Industrial User Permit expires on 12/31/2024. Attachment #5. Alta Metal Finishing, Inc. submitted December 2023 Self-Monitoring Data. Technical Report prepared for: Alta Metal Finishing 126 Oakley Ave White Plains NY, 10601 Attention: Andre Enriquez Report Date: 12/29/2023 Client Project ID: Wastewater Discharge Permit York Project (SDG) No.: 23L1390 CT Cert. No. PH-0723 New Jersey Cert. No. CT005 and NY037 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 New York Cert. Nos. 10854 and 12058 PA Cert. No. 68-04440 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorklab.com Page 1 of 21 [TOC_1] Introduction and Sample Cross Reference [ Report Date: 12/29/2023 Client Project ID: Wastewater Discharge Permit York Project (SDG) No.: 23L1390 Alta Metal Finishing 126 Oakley Ave White Plains NY, 10601 Attention: Andre Enriquez Purpose and Results This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received in our laboratory on December 20, 2023 and listed below. The project was identified as your project: Wastewater Discharge Permit. The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables. All samples were received in proper condition meeting the customary acceptance requirements for environmental samples except those indicated under the Sample and Analysis Qualifiers section of this report. All analyses met the method and laboratory standard operating procedure requirements except as indicated by any data flags, the meaning of which are explained in the Sample and Data Qualifiers Relating to This Work Order section of this report and case narrative if applicable. The results of the analyses, which are all reported on dry weight basis (soils) unless otherwise noted, are detailed in the following pages. Please contact Client Services at 203.325.1371 with any questions regarding this report. York Sample ID 23L1390-01 23L1390-02 Client Sample ID Wastewater Discharge Trip Blank Matrix Waste Water Water Date Collected 12/19/2023 12/19/2023 Date Received 12/20/2023 12/20/2023 Page 2 of 21 General Notes for York Project (SDG) No.: 23L1390 OC_2]General Notes Relating to this Report[TOC] 1. The RLs and MDLs (Reporting Limit and Method Detection Limit respectively) reported are adjusted for any dilution necessary due to the levels of target and/or non-target analytes and matrix interference. The RL(REPORTING LIMIT) is based upon the lowest standard utilized for the calibration where applicable. 2. Samples are retained for a period of thirty days after submittal of report, unless other arrangements are made. 3. York's liability for the above data is limited to the dollar value paid to York for the referenced project. 4. This report shall not be reproduced without the written approval of York Analytical Laboratories , Inc. 5. All analyses conducted met method or Laboratory SOP requirements. See the Sample and Data Qualifiers Section for further information. 6. It is noted that no analyses reported herein were subcontracted to another laboratory, unless noted in the report. 7. This report reflects results that relate only to the samples submitted on the attached chain-of-custody form(s) received by York. 8. Analyses conducted at York Analytical Laboratories, Inc. Stratford, CT are indicated by NY Cert. No. 10854; those conducted at York Analytical Laboratories, Inc., Richmond Hill, NY are indicated by NY Cert. No. 12058. Approved By: Cassie L. Mosher Laboratory Manager Date: 12/29/2023 Page 3 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water [TOC_1]Sample Results[TOC] [TOC_2]Wastewater Discharge[TOC] York Sample ID: 23L1390-01 Collection Date/Time December 19, 2023 12:10 pm Date Received 12/20/2023 [TOC_3]Volatile Organic Compounds by GC/MS[TOC] Volatile Organics, 624 List Sample Prepared by Method: EPA 5030B CAS No. Parameter 71-55-6 1,1,1-Trichloroethane Result ND Flag Units ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND IS-LO ug/L 79-00-5 1,1,2-Trichloroethane ND IS-LO ug/L 75-34-3 1,1-Dichloroethane ND ug/L 75-35-4 1,1-Dichloroethylene ND ug/L 95-50-1 1,2-Dichlorobenzene ND IS-LO ug/L 107-06-2 1,2-Dichloroethane ND ug/L 78-87-5 1,2-Dichloropropane ND IS-LO ug/L 541-73-1 1,3-Dichlorobenzene ND IS-LO ug/L 106-46-7 1,4-Dichlorobenzene ND IS-LO ug/L 110-75-8 2-Chloroethylvinyl ether 107-02-8 Acrolein ND IS-LO, ug/L QL-02 ND ug/L 107-13-1 Acrylonitrile ND ug/L 71-43-2 Benzene ND ug/L 75-27-4 Bromodichloromethane ND IS-LO ug/L 75-25-2 Bromoform ND IS-LO ug/L 74-83-9 Bromomethane ND ug/L 56-23-5 Carbon tetrachloride ND ug/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 20 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 10 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaba.cgoem 4 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Volatile Organics, 624 List Sample Prepared by Method: EPA 5030B CAS No. Parameter 108-90-7 Chlorobenzene Result ND Flag Units IS-LO ug/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 75-00-3 Chloroethane ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 67-66-3 Chloroform ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 74-87-3 Chloromethane ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 156-59-2 cis-1,2-Dichloroethylene ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 10061-01-5 cis-1,3-Dichloropropylene ND IS-LO ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 124-48-1 Dibromochloromethane ND IS-LO ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 100-41-4 Ethyl Benzene ND IS-LO ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1634-04-4 * Methyl tert-butyl ether (MTBE) ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: 75-09-2 Methylene chloride ND ug/L 10 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 127-18-4 Tetrachloroethylene 108-88-3 Toluene ND IS-LO, ug/L QL-02 ND IS-LO ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 156-60-5 trans-1,2-Dichloroethylene ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 10061-02-6 trans-1,3-Dichloropropylene ND IS-LO ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 79-01-6 Trichloroethylene ND IS-LO ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 75-69-4 Trichlorofluoromethane ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 75-01-4 Vinyl Chloride ND ug/L 5.0 1 EPA 624.1 12/28/2023 09:00 12/28/2023 13:29 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 17060-07-0 2037-26-5 Surrogate Recoveries Surrogate: SURR: 1,2-Dichloroethane-d4 Surrogate: SURR: Toluene-d8 Result 95.1 % 128 % IS-LO, S-08 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 Acceptance Range 78-126 84-117 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaba.cgoem 5 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Volatile Organics, 624 List Sample Prepared by Method: EPA 5030B CAS No. Parameter Result Flag Units 460-00-4 Surrogate: SURR: 149 % IS-LO, p-Bromofluorobenzene S-08 [TOC_3]Semivolatile Organic Compounds by GC/MS[TOC] Semi-Volatiles, EPA 625 - Dioxin Screen Sample Prepared by Method: EPA 3510C CAS No. Parameter 1746-01-6 * 2,3,7,8-tetrachlorodibenzo-p-dioxin Result ND Flag Units ug/L Log-in Notes: HT-01, VOA-AirSample Notes: 71-130 Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOD/MDL LOQ 12.9 12.9 Dilution Reference Method 1 EPA 625 Certifications: Date/Time Prepared 12/24/2023 07:17 Date/Time Analyzed Analyst 12/26/2023 19:51 KH Semi-Volatiles, EPA 625 List Sample Prepared by Method: EPA 3510C CAS No. Parameter 120-82-1 1,2,4-Trichlorobenzene 95-50-1 * 1,2-Dichlorobenzene 541-73-1 * 1,3-Dichlorobenzene 106-46-7 * 1,4-Dichlorobenzene 95-95-4 2,4,5-Trichlorophenol 88-06-2 2,4,6-Trichlorophenol 120-83-2 2,4-Dichlorophenol 105-67-9 2,4-Dimethylphenol 51-28-5 2,4-Dinitrophenol 121-14-2 2,4-Dinitrotoluene 606-20-2 2,6-Dinitrotoluene 91-58-7 2-Chloronaphthalene 95-57-8 2-Chlorophenol 120 RESEARCH DRIVE www.YORKLAB.com Result ND Flag Units ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L STRATFORD, CT 06615 (203) 325-1371 Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 Certifications: 12/24/2023 07:17 12/26/2023 19:51 KH 6.45 1 EPA 625 Certifications: 12/24/2023 07:17 12/26/2023 19:51 KH 6.45 1 EPA 625 Certifications: 12/24/2023 07:17 12/26/2023 19:51 KH 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaba.cgoem 6 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Semi-Volatiles, EPA 625 List Sample Prepared by Method: EPA 3510C CAS No. Parameter 91-57-6 * 2-Methylnaphthalene 88-75-5 2-Nitrophenol 91-94-1 3,3-Dichlorobenzidine 534-52-1 4,6-Dinitro-2-methylphenol 101-55-3 4-Bromophenyl phenyl ether 59-50-7 4-Chloro-3-methylphenol 7005-72-3 4-Chlorophenyl phenyl ether 100-02-7 4-Nitrophenol 83-32-9 Acenaphthene 208-96-8 Acenaphthylene 62-53-3 Aniline 120-12-7 Anthracene 92-87-5 Benzidine 56-55-3 Benzo(a)anthracene 50-32-8 Benzo(a)pyrene 205-99-2 Benzo(b)fluoranthene 191-24-2 Benzo(g,h,i)perylene 207-08-9 Benzo(k)fluoranthene 100-51-6 * Benzyl alcohol 120 RESEARCH DRIVE www.YORKLAB.com Result ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Flag Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method 6.45 1 EPA 625 Certifications: Date/Time Prepared 12/24/2023 07:17 Date/Time Analyzed Analyst 12/26/2023 19:51 KH 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 25.8 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 Certifications: 12/24/2023 07:17 12/26/2023 19:51 KH STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaba.cgoem 7 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Semi-Volatiles, EPA 625 List Sample Prepared by Method: EPA 3510C CAS No. Parameter 85-68-7 Benzyl butyl phthalate 111-91-1 Bis(2-chloroethoxy)methane 111-44-4 Bis(2-chloroethyl)ether 108-60-1 117-81-7 Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate 218-01-9 Chrysene 53-70-3 Dibenzo(a,h)anthracene 84-66-2 Diethyl phthalate 131-11-3 Dimethyl phthalate 84-74-2 117-84-0 Di-n-butyl phthalate Di-n-octyl phthalate 206-44-0 Fluoranthene 86-73-7 Fluorene 118-74-1 Hexachlorobenzene 87-68-3 Hexachlorobutadiene 77-47-4 Hexachlorocyclopentadiene 67-72-1 Hexachloroethane 193-39-5 Indeno(1,2,3-cd)pyrene 78-59-1 Isophorone Result ND ND ND ND 89.8 ND ND ND ND ND 11.0 ND ND ND ND ND ND ND ND Flag Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 32.3 5 EPA 625 12/24/2023 07:17 12/27/2023 14:10 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaba.cgoem 8 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Semi-Volatiles, EPA 625 List Sample Prepared by Method: EPA 3510C CAS No. 91-20-3 Naphthalene Parameter Result ND Flag Units ug/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 98-95-3 Nitrobenzene ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 62-75-9 N-Nitrosodimethylamine ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 621-64-7 N-nitroso-di-n-propylamine ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 86-30-6 N-Nitrosodiphenylamine ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 87-86-5 Pentachlorophenol ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 85-01-8 Phenanthrene ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 108-95-2 Phenol ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 129-00-0 Pyrene ND ug/L 6.45 1 EPA 625 12/24/2023 07:17 12/26/2023 19:51 KH Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 Surrogate Recoveries Result 367-12-4 Surrogate: SURR: 2-Fluorophenol 35.8 % 13127-88-3 Surrogate: SURR: Phenol-d6 26.7 % 4165-60-0 Surrogate: SURR: Nitrobenzene-d5 57.1 % 321-60-8 Surrogate: SURR: 2-Fluorobiphenyl 70.0 % 118-79-6 1718-51-0 Surrogate: SURR: 2,4,6-Tribromophenol Surrogate: SURR: Terphenyl-d14 83.4 % 65.8 % [TOC_3]Organochlorine Pesticides by GC/ECD[TOC] Pesticides, EPA 608 list Sample Prepared by Method: EPA SW846-3510C Low Level CAS No. 72-54-8 4,4'-DDD Parameter Result ND Acceptance Range 19.7-63.1 10.1-41.7 50.2-113 39.9-105 39.3-151 30.7-106 Flag Units ug/L Log-in Notes: HT-01, VOA-AirSample Notes: EXT-EM Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 72-55-9 4,4'-DDE ND ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 50-29-3 4,4'-DDT ND ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 309-00-2 Aldrin ND ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaba.cgoem 9 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Pesticides, EPA 608 list Sample Prepared by Method: EPA SW846-3510C Low Level CAS No. 319-84-6 alpha-BHC Parameter Result ND 319-85-7 beta-BHC ND 57-74-9 Chlordane, total ND 319-86-8 delta-BHC ND 60-57-1 Dieldrin ND 959-98-8 Endosulfan I ND 33213-65-9 Endosulfan II ND 1031-07-8 Endosulfan sulfate ND 72-20-8 Endrin ND 7421-93-4 Endrin aldehyde ND 53494-70-5 * Endrin ketone ND 58-89-9 gamma-BHC (Lindane) ND 76-44-8 Heptachlor ND 1024-57-3 Heptachlor epoxide ND 72-43-5 Methoxychlor ND 8001-35-2 Toxaphene ND 877-09-8 Surrogate Recoveries Surrogate: Tetrachloro-m-xylene Result 11.8 % 2051-24-3 Surrogate: Decachlorobiphenyl 8.20 % [TOC_3]Polychlorinated Biphenyls by GC/ECD[TOC] Log-in Notes: HT-01, VOA-AirSample Notes: EXT-EM Flag Units ug/L Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0200 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00200 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0100 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0100 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.00400 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.100 1 EPA 608.3 12/24/2023 09:00 12/26/2023 15:14 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 S-08, S-09 S-08, S-09 Acceptance Range 30-120 30-120 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom10 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 [TOC_3]Polychlorinated Biphenyls by GC/ECD[TOC] PCB (Polychlorinated Biphenyls) Sample Prepared by Method: EPA SW846-3510C Low Level CAS No. 12674-11-2 Aroclor 1016 Parameter Result ND 11104-28-2 Aroclor 1221 ND 11141-16-5 Aroclor 1232 ND 53469-21-9 Aroclor 1242 ND 12672-29-6 Aroclor 1248 ND 11097-69-1 Aroclor 1254 ND 11096-82-5 Aroclor 1260 ND 1336-36-3 * Total PCBs ND 877-09-8 Surrogate Recoveries Surrogate: Tetrachloro-m-xylene 2051-24-3 Surrogate: Decachlorobiphenyl [TOC_3]Metals by ICP[TOC] Barium by EPA 200.7 Sample Prepared by Method: EPA 200.7 CAS No. 7440-39-3 Barium Parameter [TOC_3]Metals by ICP/MS[TOC] Metals, Priority Pollutant-Low Level Sample Prepared by Method: EPA 3015A CAS No. 7440-36-0 Antimony Parameter 7440-38-2 Arsenic 7440-41-7 Beryllium Result 14.0 % 11.5 % Result ND Result 2.75 1.29 ND Log-in Notes: HT-01, VOA-AirSample Notes: EXT-EM Flag Units ug/L Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 ug/L 0.0500 1 EPA 608 12/24/2023 09:00 12/26/2023 22:32 BCJ Certifications: PADEP-68-04440 S-08, S-09 S-08, S-09 Acceptance Range 30-120 30-120 Flag Units mg/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.0278 1 EPA 200.7 12/26/2023 07:58 12/27/2023 17:09 CEG Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 Flag Units ug/L ug/L ug/L Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 0.333 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom11 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Metals, Priority Pollutant-Low Level Sample Prepared by Method: EPA 3015A CAS No. 7440-43-9 Cadmium Parameter 7440-47-3 Chromium 7440-50-8 Copper 7439-92-1 Lead 7440-02-0 Nickel 7782-49-2 Selenium Result 90.2 118 14500 10.6 120 ND Flag Units ug/L ug/L ug/L ug/L ug/L ug/L 7440-22-4 Silver 7440-28-0 Thallium 8.65 ug/L ND ug/L 7440-66-6 Zinc 10100 ug/L [TOC_3]Mercury by EPA 7000/200 Series Methods[TOC] Mercury by 7470/7471 Sample Prepared by Method: EPA SW846-7470A CAS No. 7439-97-6 Mercury Parameter Result 0.0003 Flag Units mg/L [TOC_3]Wet Chemistry Parameters[TOC] Cyanide Amenable to Chlorination Sample Prepared by Method: Analysis Preparation CAS No. Parameter 57-12-5 * Cyanide, amenable to chlorination Result ND Flag Units mg/L Cyanide, Total Sample Prepared by Method: Analysis Preparation CAS No. 57-12-5 Cyanide, total Parameter Result ND Flag Units mg/L Hexavalent Chromium 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.556 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 22.2 20 EPA 6020B 12/26/2023 08:30 12/28/2023 11:15 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 1.11 1 EPA 6020B 12/26/2023 08:30 12/27/2023 16:27 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 22.2 20 EPA 6020B 12/26/2023 08:30 12/28/2023 11:15 cw Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.0002 1 EPA 7470 12/28/2023 08:22 12/28/2023 08:22 PFA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method 0.0100 1 SM 4500 CN G Certifications: Date/Time Prepared 12/19/2023 21:39 Date/Time Analyzed Analyst 12/20/2023 18:05 SL Log-in Notes: HT-01, VOA-AirSample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.0100 1 SM 4500 CN C-2016 / E-201612/19/2023 21:34 12/20/2023 18:02 SL Certifications: NELAC-NY10854,CTDOH-PH-0723,NJDEP-CT005,PADEP-68-04440 Log-in Notes: HT-01, VOA-AirSample Notes: 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom12 of 21 Client Sample ID: Wastewater Discharge Sample Information York Project (SDG) No. 23L1390 Client Project ID Wastewater Discharge Permit Matrix Waste Water York Sample ID: Collection Date/Time December 19, 2023 12:10 pm 23L1390-01 Date Received 12/20/2023 Sample Prepared by Method: Analysis Preparation CAS No. Parameter 18540-29-9 Chromium, Hexavalent Result ND Flag Units mg/L Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.0100 1 SM 3500-Cr B 12/20/2023 11:22 12/20/2023 11:35 AD Certifications: NELAC-NY10854,NJDEP-CT005,CTDOH-PH-0723,PADEP-68-04440 Oil & Grease Sample Prepared by Method: Analysis Preparation CAS No. OILGREASE Oil & Grease Parameter pH Sample Prepared by Method: Analysis Preparation CAS No. * pH Parameter Phenols, total Sample Prepared by Method: Analysis Preparation CAS No. 64743-03-9 Phenols, total Parameter Result 33.8 Result 6.90 Result 0.240 Log-in Notes: HT-01, VOA-AirSample Notes: Flag Units mg/L Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.505 1 EPA 1664A 12/26/2023 14:16 12/27/2023 16:46 ZTS Certifications: NELAC-NY10854,CTDOH-PH-0723,NJDEP-CT005,PADEP-68-04440 Log-in Notes: HT-01, VOA-AirSample Notes: Flag Units HT-pH pH units Reported to LOQ Dilution Reference Method Date/Time Prepared 0.500 1 SM 4500 HB 12/22/2023 12:22 Certifications: CTDOH-PH-0723 Date/Time Analyzed Analyst 12/22/2023 17:47 SMK Log-in Notes: HT-01, VOA-AirSample Notes: Flag Units mg/L Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 0.0500 1 EPA 420.1/2 12/27/2023 14:46 12/27/2023 17:34 SMK Certifications: NELAC-NY10854,CTDOH-PH-0723,NJDEP-CT005,PADEP-68-04440 Client Sample ID: Trip Blank York Project (SDG) No. 23L1390 Sample Information Client Project ID Wastewater Discharge Permit Matrix Water [TOC_2]Trip Blank[TOC] York Sample ID: 23L1390-02 Collection Date/Time December 19, 2023 10:00 am Date Received 12/20/2023 [TOC_3]Volatile Organic Compounds by GC/MS[TOC] Volatile Organics, 624 List Sample Prepared by Method: EPA 5030B CAS No. Parameter 71-55-6 1,1,1-Trichloroethane Result ND Flag Units ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND ug/L 79-00-5 1,1,2-Trichloroethane ND ug/L 75-34-3 1,1-Dichloroethane ND ug/L Log-in Notes: Sample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom13 of 21 Client Sample ID: Trip Blank York Project (SDG) No. 23L1390 Volatile Organics, 624 List Sample Prepared by Method: EPA 5030B CAS No. Parameter 75-35-4 1,1-Dichloroethylene 95-50-1 1,2-Dichlorobenzene 107-06-2 1,2-Dichloroethane 78-87-5 1,2-Dichloropropane 541-73-1 1,3-Dichlorobenzene 106-46-7 1,4-Dichlorobenzene 110-75-8 2-Chloroethylvinyl ether 107-02-8 Acrolein 107-13-1 Acrylonitrile 71-43-2 Benzene 75-27-4 Bromodichloromethane 75-25-2 Bromoform 74-83-9 Bromomethane 56-23-5 Carbon tetrachloride 108-90-7 Chlorobenzene 75-00-3 Chloroethane 67-66-3 Chloroform 74-87-3 Chloromethane 156-59-2 cis-1,2-Dichloroethylene 120 RESEARCH DRIVE www.YORKLAB.com Sample Information Client Project ID Wastewater Discharge Permit Matrix Water York Sample ID: Collection Date/Time December 19, 2023 10:00 am 23L1390-02 Date Received 12/20/2023 Result ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Flag Units ug/L ug/L ug/L ug/L ug/L ug/L QL-02 ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Log-in Notes: Sample Notes: Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 20 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 10 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005 STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom14 of 21 Client Sample ID: Trip Blank York Project (SDG) No. 23L1390 Sample Information Client Project ID Wastewater Discharge Permit Matrix Water York Sample ID: Collection Date/Time December 19, 2023 10:00 am 23L1390-02 Date Received 12/20/2023 Volatile Organics, 624 List Sample Prepared by Method: EPA 5030B CAS No. Parameter 10061-01-5 cis-1,3-Dichloropropylene 124-48-1 Dibromochloromethane 100-41-4 Ethyl Benzene 1634-04-4 * Methyl tert-butyl ether (MTBE) 75-09-2 Methylene chloride 127-18-4 Tetrachloroethylene 108-88-3 Toluene 156-60-5 trans-1,2-Dichloroethylene 10061-02-6 trans-1,3-Dichloropropylene 79-01-6 Trichloroethylene 75-69-4 Trichlorofluoromethane 75-01-4 Vinyl Chloride 17060-07-0 2037-26-5 460-00-4 Surrogate Recoveries Surrogate: SURR: 1,2-Dichloroethane-d4 Surrogate: SURR: Toluene-d8 Surrogate: SURR: p-Bromofluorobenzene Result ND ND ND ND ND ND ND ND ND ND ND ND Result 95.4 % 99.3 % 102 % Log-in Notes: Sample Notes: Flag Units ug/L ug/L ug/L ug/L ug/L QL-02 ug/L ug/L ug/L QL-02 ug/L ug/L ug/L ug/L Reported to LOQ Dilution Reference Method Date/Time Prepared Date/Time Analyzed Analyst 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 Certifications: 12/27/2023 12:30 12/27/2023 23:08 SMA 10 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 5.0 1 EPA 624.1 12/27/2023 12:30 12/27/2023 23:08 SMA Certifications: CTDOH-PH-0723,NELAC-NY10854,NJDEP-CT005,PADEP-68-04440 Acceptance Range 78-126 84-117 71-130 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom15 of 21 Lab ID 23L1390-01 23L1390-02 Volatile Analysis Sample Containers Client Sample ID Wastewater Discharge Trip Blank Volatile Sample Container 40mL Clear Vial (pre-pres.) HCl; Cool to 4 C 40mL Clear Vial (pre-pres.) HCl; Cool to 4 C 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom16 of 21 Sample and Data Qualifiers Relating to This Work Order [TOC_1]Notes and Specific Data Flags[ VOA-Air Air bubbles were present in vial upon receipt by lab. S-09 The surrogate recovery for this sample is outside of established control limits due to a sample matrix effect confirmed by re-extraction and re-analysis of the sample. S-08 The recovery of this surrogate was outside of QC limits. QM-07 QL-02 IS-LO HT-pH The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. This LCS analyte is outside Laboratory Recovery limits due the analyte behavior using the referenced method. The reference method has certain limitations with respect to analytes of this nature. The internal std associated with this target compound did not meet acceptance criteria (area <50% CCV) at the stated dilution due to matrix effects. Sample was rerun to confirm matrix effects. HOLDING TIME EXCEEDED. Samples for pH must be measured in the field or within 15 minutes of sample collection. HT-01 This result was reported from an analysis conducted outside of the EPA recommended holding time. EXT-EM The sample exhibited emulsion formation during the extraction process. This may affect surrogate recoveries. Definitions and Other Explanations * Analyte is not certified or the state of the samples origination does not offer certification for the Analyte . ND NOT DETECTED - the analyte is not detected at the Reported to level (LOQ/RL or LOD/MDL) RL REPORTING LIMIT - the minimum reportable value based upon the lowest point in the analyte calibration curve. LOQ LOD LIMIT OF QUANTITATION - the minimum concentration of a target analyte that can be reported within a specified degree of confidence . This is the lowest point in an analyte calibration curve that has been subjected to all steps of the processing/analysis and verified to meet defined criteria. This is based upon current NELAC/TNI Standards and applies to all analyses. LIMIT OF DETECTION - a verified estimate of the minimum concentration of a substance in a given matrix that an analytical process can reliably detect. This is based upon NELAC 2009 Standards and applies to all analyses conducted under the auspices of EPA SW-846. MDL METHOD DETECTION LIMIT - a statistically derived estimate of the minimum amount of a substance an analytical system can reliably detect with a 99% confidence that the concentration of the substance is greater than zero. This is based upon 40 CFR Part 136 Appendix B and applies only to EPA 600 and 200 series methods. Reported to This indicates that the data for a particular analysis is reported to either the LOD/MDL, or the LOQ/RL. In cases where the "Reported to" is located above the LOD/MDL, any value between this and the LOQ represents an estimated value which is "J" flagged accordingly. This applies to volatile and semi-volatile target compounds only. NR Not reported RPD Relative Percent Difference Wet The data has been reported on an as-received (wet weight) basis Low Bias High Bias Low Bias flag indicates that the recovery of the flagged analyte is below the laboratory or regulatory lower control limit. The data user should take note that this analyte may be biased low but should evaluate multiple lines of evidence including the LCS and site-specific MS/MSD data to draw bias conclusions. In cases where no site-specific MS/MSD was requested, only the LCS data can be used to evaluate such bias. High Bias flag indicates that the recovery of the flagged analyte is above the laboratory or regulatory upper control limit. The data user should take note that this analyte may be biased high but should evaluate multiple lines of evidence including the LCS and site-specific MS/MSD data to draw bias conclusions. In cases where no site-specific MS/MSD was requested, only the LCS data can be used to evaluate such bias. Non-Dir. Non-dir. flag (Non-Directional Bias ) indicates that the Relative Percent Difference (RPD) (a measure of precision) among the MS and MSD data is outside the laboratory or regulatory control limit. This alerts the data user where the MS and MSD are from site-specific samples that the RPD is high due to either non-homogeneous distribution of target analyte between the MS/MSD or indicates poor reproducibility for other reasons. 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom17 of 21 If EPA SW-846 method 8270 is included herein it is noted that the target compound N-nitrosodiphenylamine (NDPA) decomposes in the gas chromatographic inlet and cannot be separated from diphenylamine (DPA). These results could actually represent 100% DPA, 100% NDPA or some combination of the two. For this reason, York reports the combined result for n-nitrosodiphenylamine and diphenylamine for either of these compounds as a combined concentration as Diphenylamine. If Total PCBs are detected and the target aroclors reported are "Not detected", the Total PCB value is reported due to the presence of either or both Aroclors 1262 and 1268 which are non-target aroclors for some regulatory lists. 2-chloroethylvinyl ether readily breaks down under acidic conditions. Samples that are acid preserved, including standards will exhibit breakdown. The data user should take note. Certification for pH is no longer offered by NYDOH ELAP. Semi-Volatile and Volatile analyses are reported down to the LOD/MDL, with values between the LOD/MDL and the LOQ being "J" flagged as estimated results. For analyses by EPA SW-846-8270D, the Limit of Quantitation (LOQ) reported for benzidine is based upon the lowest standard used for calibration and is not a verified LOQ due to this compound's propensity for oxidative losses during extraction/concentration procedures and non-reproducible chromatographic performance. 120 RESEARCH DRIVE www.YORKLAB.com STRATFORD, CT 06615 (203) 325-1371 132-02 89th AVENUE FAX (203) 357-0166 RICHMOND HILL, NY 11418 ClientServices@yorkPlaabg.ceom18 of 21 Page 19 of 21 Page 20 of 21 Page 21 of 21 Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 8.0 Photographs Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Photo #1. Municipal water is used in the tumbler to clean and polish bare metal parts. Photo #2. Process waste streams are directed into the floor drain then to the collection pit. Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Photo #3. Wastewater in the collection pit is pumped to the receiving tank. Photo #4. Solids are removed and the filtrate flows into the plastic junction container. Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Photo #5. Wastewater is pumped into on-site portable treatment system. Photo #6. Wastewater is pumped into the influent receiving chamber. Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Photo #7. Polymer is added into the reactor chamber while the agitator provides mixing. Photo #8. Effluent from the reactor chamber discharges onto the cloth paper filter. Alta Metal Finishing, Inc. Inspection Dates: 8/02/24 & 9/18/24 40 CFR Part 403 & Wastewater Discharge Permit # 4399 Photo #9. The pretreated effluent discharges to the POTW via the white PVC pipe.