Document v1R46m2V5yqEX1djZ9q1yYoqb

Report Prepared by: Report Approved by: NPDES Pretreatment Compliance Sampling Inspection Report Thorlabs Finishing 280 Spring Street Newton, New Jersey 07860 NPDES Permit: NJ 030 2821 40 CFR Part 433.17 Inspection Dates: August 15-16, 2023 THUAN TRAN Digitally signed by THUAN TRAN _________________Da_te_: 2_0_23_.1_0.1_1_13_:5_8:_31_-_04_'00_' Thuan Tran, Physical Scientist Digitally signed by PHILIP PHILIP COCUZZA COCUZZA _________________D_ate_: _20_23_.1_0._11_1_5:0_8_:03_-_04_'0_0' Phil Cocuzza, Chief Monitoring Operations Section Thorlabs Finishing, Newton, NJ 07860 NPDES Permit: NJ0302821 1.0 OBJECTIVE Inspection Dates: August 15-16, 2023 On August 15-16, 2023, at the request of the New Jersey Department of Environmental Protection (NJDEP), the United States Environmental Protection Agency (USEPA) conducted a National Pollutant Discharge Elimination System (NPDES) Pretreatment Compliance Sampling Inspection (CSI) at Thorlabs Finishing in Newton, New Jersey (NJ). The objective of the Pretreatment CSI was to gather information necessary to determine if the pretreated discharge effluent from Thorlabs Finishing is in compliance with the requirements and limitations set forth in their NPDES Permit; NJ0302821, as well as, the Federal Metal Finishing Category for Pretreatment Standards for New Sources (PSNS) under 40 CFR Part 433.17 and the Federal General Pretreatment Standards for Existing and New Sources of Pollution under 40 CFR Part 403. The NPDES Permit was issued on February 27, 2020 and will expire on February 28, 2025. 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 Robert Morrell, Geologist Thorlabs Finishing Scott Shadis, Metal Finishing Manger 973-440-7400 (mobile), email: sshadis@thorlabs.com Kyle Cook, Operator on Record Markus McConnon, Anodizing Line Lead Operator 3.0 FACILITY DESCRIPTION 3.1 General Information Thorlabs Finishing is located at 280 Spring Street in Newton, NJ. The facility specializes in anodizing and dyeing aluminum alloy parts for laser and fiber optic systems in the photonic industry. The facility operates two, 10-hour shifts; 6:00AM to 4:30PM and 3:45PM to 2:15AM and employs nineteen (19) workers. Thorlabs Finishing is categorized under Standard Industrial Classification (SIC) 3471- Electroplating, Plating. Polishing, Anodizing & Coloring and the North American Industry Classification System (NAICS) 332813 - Electroplating, Plating, Polishing, Anodizing & Coloring. 3.2 Process Information City water is used for sanitary purposes and in the manufacturing operation. Sanitary wastewater is drained into the Town of Newton Sewer Collection System. In the manufacturing operation, city water is treated by passing through an Ion Exchange System. The De-Ionized (DI) water is used in the DI water rinse baths during the Anodizing Finishing process. Page 2 of 7 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit: NJ0302821 Inspection Dates: August 15-16, 2023 Raw aluminum is stamped and punched to produce bare parts of various shapes and sizes at the machine shop. Some of the bare parts are tumbled at the machine shop while others are tumbled at the facility to deburr and polish the surface. At the facility, the received bare parts are sorted, racked onto a cart, and then placed onto a flight bar. The flight bar moves the cart into a loading station. In the loading station, the overhead hoist lifts the flight bar moving the cart into the storage queue. While on stand-by, the operator computer programs the flight bar with the proper procedures to run the required component process. Once the program has been initiated, the automation system runs the operations for that specific rack. The operation process starts by dipping the bare parts in an Acid Soak Cleaner Bath to remove oil, grease, and dirt. After cleaning, the bare parts are rinsed with city water to remove any drag-out. Once rinsed, the bare parts are placed into an Alkaline Etch Bath to remove bare metal from the surface. The bare parts are rinsed through 2 heated counter-flow city water rinses to remove any caustic drag-out. If necessary, the bare parts can be manually rinsed in the "Blind Hole" rinse station. After rinsing, the bare parts are dipped into a Deoxidizer Bath to desmut the surface. The bare parts are rinsed through a series of 2 counter-flow city water rinses. At this point, the bare parts are either dipped into a Type III Anodizing Bath (lower temperature and higher amperage) or Type II Anodizing Bath (higher temperature lower amperage). After the bare parts have been anodized, they are rinsed through a series of 2 counter-flow DI water rinses. If necessary, they can be manually rinsed in a second "Blind Hole" rinse station with DI water. Depending on the computer program, the parts are either "Clear Anodized" or "Black Anodized." If "Clear Anodized," the parts will proceed to the Nickel Acetate Seal Bath. If "Black Anodized," the parts continue to the Nitric Acid Activator Bath to prepare the surface for dyeing followed by a single counter-flow DI water rinse bath to remove any drag-out. After rinsing, the parts are dipped into the Black Organic Immersion Dye Bath. Then, they are rinsed in a series of 2 counter-flow DI water rinse baths. After rinsing, the parts continue to the Nickel Acetate Seal Bath. The parts are spray rinsed as they are removed from the Nickel Acetate Seal Bath and continued to the Drag-Out DI water rinse bath. The overflow from the Drag-Out DI water rinse bath is treated by a Mobile Ion Exchange Unit to remove any nickel residual. After the Drag-Out DI water rinse bath, the parts get another counterflow DI water rinse, then finally a hot DI water rinse bath followed by air dry as the rack moves to the storage queue. From the storage queue, the parts are removed from the rack, inspected, and packed for transport. Process wastewater generated during the manufacturing operation is collected and pretreated by the On-Site Pretreatment System. From the Anodizing Pretreatment line, the overflow from the city water rinse baths after the Acid Soak Cleaner and the Deoxidizer Baths is collected and pumped to the Master Lift Station. From the Anodizing Finishing line, the overflow from the DI water rinse baths after either Type III or Type II Anodizing Baths, the Nitric Acid Activator Bath, the Black Organic Immersion Dye Bath, and the Nickel Acetate Seal Bath is pumped to the DI Lift Station as well as the overflow from the final hot DI water rinse bath. From the DI Lift Station, the Page 3 of 7 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit: NJ0302821 Inspection Dates: August 15-16, 2023 process wastewater is pumped to the Master Lift Station. Air flow from the treatment baths is directed to the air scrubber. Sprayed water from the air scrubber flows to the Master Lift Station. As the Master Lift Station fills up, a level sensor is triggered to pump the process wastewater into 1 of 2 pH Neutralization Tanks. A pH probe in the pH Neutralization Tank monitors and communicates with the dosimeters for chemical treatment (acid or caustic) while the agitator homogenizes the wastewater to the desired pH range. As the level raises in the pH Neutralization Tank, the high-level sensor triggers the pump to discharge the pretreated wastewater through a PVC pipe. A fixed in-line pH probe provides continuous pH monitoring, followed by an in-line electromagnetic flow measuring device before the effluent discharges into the sewer collection system. 3.3 Facility Self-Monitoring Information Thorlabs Finishing contracts with Enviro-Science of Delaware Inc. (ESI) to perform permit compliance sampling event such as setting up the 24-hour composite sampler, taking appropriate grab samples and perform on-site analysis for pH (Hydrogen Ion). Alpha Analytical Inc. is contracted by ESI to provide sample containers and analyzes the samples. Samples are analyzed for Metals (Cadmium, Chromium, Copper, Lead, Nickel, Silver & Zinc), Sulfates, Phosphorus, Cyanides and Total Toxic Organics (TTO). TTO consists of Volatile Organic Compounds (VOCs), Semi-Volatile Organic Compounds (SVOCs), Pesticides and Polychlorinated Biphenyls (PCBs). 4.0 EPA SAMPLING/INSPECTION ACTIVITIES 4.1 Sampling Activities An ISCO automatic composite sampler was programmed to take 96 sample aliquots during the 24-hour sampling event from the pretreated discharge monitoring location. A 24-hour composite sample was collected and analyzed for Metals (Cd, Cr, Cu, Ni, Ag & Zn), Total Phosphorus, and Total Sulfates (SO4). Grab-composite samples were collected for SemiVolatile Organic Compounds (SVOCs), Pesticides, and Polychlorinated Biphenyls (PCBs). Grab samples were collected for Volatile Organic Compounds (VOCs), Total Petroleum Hydrocarbons (TPH), and Cyanide. The four (4) sets of VOCs grab samples were collected and laboratory composited. In addition, 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. Page 4 of 7 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit: NJ0302821 Inspection Dates: August 15-16, 2023 Flow monitoring data were provided by the facility representative based on their monthly average. Split samples were collected and given to the facility representative. 4.2 Inspection Activities An NPDES Pretreatment CSI at Thorlabs Finishing was conducted on August 15-16, 2023. The inspectors met with Scott Shadis; Metal Finishing Manager, Kyle Cook; Operator on Record and Markus McConnon; Anodizing Line Lead Operator. Inspector's credentials were presented, and business cards were provided during the opening conference. The facility representatives were explained that the purpose of the inspection with supporting on-site activities was to determine if the facility is in compliance with their NPDES Permit, the Federal Metal Finishing Regulation in 40 CFR Part 433 as well as the Federal General Pretreatment Standards in 40 CFR Part 403. The on-site supporting activities consist of collecting samples at the monitoring location, observing and evaluating the monitoring location, observing and evaluating the on-site pretreatment system, observing and evaluating the flow monitoring equipment, observing and evaluating the facility sampling equipment, review and evaluate the facility testing procedures, and interviewing the facility's representatives. During the closing conference, the facility representatives were briefed on the inspection activities. On-site sample results and concerns observed during the inspection were communicated to the facility representatives. 4.3 Deviations and/or Environmental Conditions EPA performed 24-hour composite sampling based on time interval. During the interview, it was revealed that the facility performs 24-hour composite sampling based on flow and that the discharge is not continuous, but intermittent throughout the 24-hour discharge period. According to the description in the "Comments" section of Part III in the NPDES Permit, it states, "Composite samples shall be obtained over a period of 24-hours using either flowproportional or time-composite sampling techniques." Furthermore, the sampling tap was the only access point to collecting compliance samples. Based on professional judgement, grab and grab-composite samples from the monitoring location had to be coordinated between the automatic composite sampler programming, the discharge flow duration and time of collection. To collect the grab and grab-composite samples, the sample tubing had to be disconnected from the sampling tap. Two (2) 1-liter amber glass bottles were used to collect the pretreated effluent at a reduced flow. After one bottle was filled, a second bottle was switched to continue collecting the water sample. The water sample was distributed between the glass sample containers. Once the sample containers are filled to the required volume, the sample tubing was reconnected to the sampling tap and the flow returned to normal to resume composite sampling. This sampling procedure was repeated 3 more times. Page 5 of 7 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit: NJ0302821 5.0 ANALYTICAL RESULTS Inspection Dates: August 15-16, 2023 Thorlabs Finishing - Pretreated Discharge to Newton (T) WWTP Inspection Dates: August 15-16, 2023 Parameters Units Permit Limitations EPA Results Flow GPD Monitor 7,008 pH SU 5.5 - 9.0 7.77 Petroleum Hydrocarbon MG/L 100 - 150 U Phosphorus, T MG/L Monitor 0.349 Sulfate (SO4), T MG/L Monitor 192 Cyanide, T MG/L 0.65 - 1.20 U Metals: Cadmium, T MG/L 0.07 - 0.11 U Chromium, T MG/L 1.71 - 2.77 0.0554 Copper, T MG/L 2.07 - 3.38 0.0473 Lead, T MG/L 0.43 - 0.69 U Nickel, T MG/L 2.38 - 3.98 0.036 Silver, T MG/L 0.24 - 0.43 U Zinc, T MG/L 1.48 - 2.61 0.132 TTO: MG/L 2.13 0.01 VOAs ---- 0.0095 (chloroform) --- NVOAs ---- ND------------- --- Pesticides ---- ND------------ --- PCBs ---- ND------------ --- Temperature C Monitor 23 Total Residual Chlorine MG/L Per Sample Collection Zero Notes: U- The analyte was not detected at or above the Reporting Limit. pH- >/= 5.0 SU [40 CFR Part 403.5(b)(2)] Temperature: </= 40C (104F) at the POTW intake [40 CFR Part 403.5(b)(5)] Petroleum Hydrocarbon: Total Petroleum Hydrocarbon (TPH) shall not be in amount to cause interference or pass through. [40 CFR Part 403.5(b)(6)] TTO: Shall mean Total Toxic Organics, which is the summation of all quantifiable values greater than 0.01 mg/L for the following toxic organics: [40 CFR Part 433.11(e)] 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 operation was conducted as discussed in Section 4.2 above. During the inspection, the following observations were noted which may contravene the requirements of the permit or the applicable regulations: 6.2.1 The in-line electromagnetic flow measuring device could not be determined when it was last calibrated. According to Part IV(E)(1)(b) of the Significant Indirect Page 6 of 7 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit: NJ0302821 Inspection Dates: August 15-16, 2023 User under Facility Requirements - Treatment Works of the NPDES Permit (page 7 of 10), it states, "The permittee shall operate and maintain treatment works and facilities which are installed or used by the permittee to achieve compliance with the terms and conditions of the permit as specified in the Operation & Maintenance Manual." 6.2.2 The sample tubing was observed to be dirty and/or with algal growth. The dirty and/or algal growth attached to the inner wall of the sample tubing could become dislodged during the purging cycle and bias the analytical results. The sample tubing should be cleaned or replaced. According to Part IV(A)(2(a) of the Significant Indirect User under Monitoring - Sampling Methods of the NPDES Permit (page 5 of 10), it states, "Samples and measurements taken for the purpose of monitoring shall be representative of the monitored activity." 7.0 ATTACHMENTS Attachment #1. Aluminum parts are racked in the "Open Area" in preparation for anodizing. Attachment #2. Base material is treated through Type II or Type III Anodizing line. Attachment #3. Process waste streams (in red) are conveyed to the master lift station. Attachment #4. Overall flow diagram illustrates the anodizing and wastewater processes at Thorlabs Finishing. Attachment #5. Samples were submitted to the USEPA-R2 Laboratory on August 16, 2023. Attachment #6. The USEPA Analytical Data Package was received on September 06, 2023. 8.0 PHOTOGRAPHS Photo #1. Compliance samples were collected from the sampling tap. Photo #2. No calibration information was observed on the flow meter/recorder. Photo #3. The facility's sample tubing was observed to be dirty and/or with algal growth. Photo #4. Process waste streams from the rinse baths are directed to the master lift station. Photo #5. Chemical treatment is provided in the pH Neutralization Tank 1. Page 7 of 7 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit No.: NJ0302821 Inspection Dates: August 15-16, 2023 7.0 Attachments Attachment #1. Aluminum parts are racked and hold in the "Open Area" before moving into the storage queue to start the anodizing process. STA. 101 - DRY SHUTTLE LEG B TO LEG A STA. 102 - DOCK FOR ROLLING WIP CARTS TO LOAD/UNLOAD WORK STA. 103 - STORAGE QUEUE STA. 104 - STORAGE QUEUE STA. 105 - STORAGE QUEUE STA. 106 - STORAGE QUEUE STA. 107 - STORAGE QUEUE STA. 108 - STORAGE QUEUE STA. 109 - STORAGE QUEUE STA. 110 - STORAGE QUEUE STA. 111 - STORAGE QUEUE STA. 112 - STORAGE QUEUE STA. 113 - STORAGE QUEUE STA. 114 - DOCK FOR ROLLING WIP CARTS TO LOAD/UNLOAD WORK STA. 115- ALKALINE SOAK CLEAN STA. 116 - CF IMMERSION RINSE STA. 117- ALKALINE ETCH STA. 118 - CF IMMERSION RINSE STA. 119 - CF IMMERSION RINSE STA. 120 - TROLLEY #2 FOR RINSING BLIND &/OR ROTATING PARTS HOLES STA. 121 - DEOXIDIZER STA. 122 - CF IMMERSION RINSE STA. 123 - CF IMMERSION RINSE w/ FBW STA. 124 - TYPE III ANODIZING STA. 125 - TROLLEY #3 - WET SHUTTLE LEG A TO LEG B STA. 217 - DRY SHUTTLE - LEG B TO LEG A STA. 216 - HOT FINAL DI RINSE STA. 215 - CF IMMERSION RINSE STA. 214- DRAG-OUT FOR MOBILE IX NICKEL RECOVERY STA. 213 NICKEL ACETATE SEAL STA. 212 - CF IMMERSION RINSE STA. 211- CF IMMERSION RINSE STA. 210- IMMERSION BLACK DYE STA. 209- IMMERSION RED DYE STA. 208 - CF IMMERSION RINSE STA. 207- NITRIC ACTIVATOR STA. 206- TROLLEY #4 FOR RINSING BLIND &/OR ROTATING PARTS HOLES STA. 205 - CF IMMERSION RINSE STA. 204 - CF IMMERSION RINSE STA. 203 - TYPE II ANODIZING STA. 202 - TYPE II ANODIZING STA. 201 - TROLLEY #3 - WET SHUTTLE LEG B TO LEG A 1 6/8/17 PREPARED FOR OEM MANUAL J.COOMBES 06/07/20 TABLOID NOT TO SCALE 11 A7047 PROJECT: TYPE II & TYPE III ANODIZING LINE Thorlabs Newton, New Jersey baker technology associates, INC. 1507 TH 7 STREET, NO. 446 SANTA MONICA, CALIFORNIA 90401 PH - (310) 458-1752 SYSTEM CONCEPT LAYOUT JC-A4047-1 Attachment #2. Base material is treated through either Type II (higher temperature lower amperage) or Type III (lower temperature and higher amperage) Anodizing line. STA. 101 - DRY SHUTTLE LEG B TO LEG A STA. 102 - DOCK FOR ROLLING WIP CARTS TO LOAD/UNLOAD WORK STA. 103 - STORAGE QUEUE STA. 104 - STORAGE QUEUE STA. 105 - STORAGE QUEUE STA. 106 - STORAGE QUEUE STA. 107 - STORAGE QUEUE STA. 108 - STORAGE QUEUE STA. 109 - STORAGE QUEUE STA. 110 - STORAGE QUEUE STA. 111 - STORAGE QUEUE STA. 112 - STORAGE QUEUE STA. 113 - STORAGE QUEUE STA. 114 - DOCK FOR ROLLING WIP CARTS TO LOAD/UNLOAD WORK STA. 115- ALKALINE SOAK CLEAN STA. 116 - CF IMMERSION RINSE STA. 117- ALKALINE ETCH STA. 118 - CF IMMERSION RINSE STA. 119 - CF IMMERSION RINSE STA. 120 - TROLLEY #2 FOR RINSING BLIND &/OR ROTATING PARTS HOLES STA. 121 - DEOXIDIZER STA. 122 - CF IMMERSION RINSE STA. 123 - CF IMMERSION RINSE w/ FBW STA. 124 - TYPE III ANODIZING STA. 125 - TROLLEY #3 - WET SHUTTLE LEG A TO LEG B STA. 217 - DRY SHUTTLE - LEG B TO LEG A STA. 216 - HOT FINAL DI RINSE STA. 215 - CF IMMERSION RINSE STA. 214- DRAG-OUT FOR MOBILE IX NICKEL RECOVERY STA. 213 NICKEL ACETATE SEAL STA. 212 - CF IMMERSION RINSE STA. 211- CF IMMERSION RINSE STA. 210- IMMERSION BLACK DYE STA. 209- IMMERSION RED DYE STA. 208 - CF IMMERSION RINSE STA. 207- NITRIC ACTIVATOR STA. 206- TROLLEY #4 FOR RINSING BLIND &/OR ROTATING PARTS HOLES STA. 205 - CF IMMERSION RINSE STA. 204 - CF IMMERSION RINSE STA. 203 - TYPE II ANODIZING STA. 202 - TYPE II ANODIZING STA. 201 - TROLLEY #3 - WET SHUTTLE LEG B TO LEG A 1 6/8/17 PREPARED FOR OEM MANUAL J.COOMBES 06/07/20 TABLOID NOT TO SCALE 11 A7047 Thorlabs Newton, New Jersey PROJECT: TYPE II & TYPE III ANODIZING LINE SYSTEM CONCEPT LAYOUT JC-A4047-1 baker technology associates, INC. 1507 7TH STREET, NO. 446 SANTA MONICA, CALIFORNIA 90401 PH - (310) 458-1752 Attachment #3. The waste streams (in red) from the manufacturing operation are collected and pumped to the master lift station. Attachment #4. Overall flow diagram illustrates the anodizing and wastewater processes at Thorlabs Finishing. Attachment #5. Samples were submitted to the USEPA Region 2 Laboratory on Wednesday, August 16, 2023. Attachment #6. The USEPA Analytical Data Package was received on Wednesday, September 06, 2023. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory 2890 Woodbridge Avenue Edison , New Jersey 08837 732-906-6886 Phone 732-906-6165 Fax September 05, 2023 Thuan Tran Monitoring & Assessment Branch LSASD/MAB Edison, NJ 08837 RE: Thorlabs Finishing - 2308016 Enclosed are the results of analyses for samples received by the laboratory on 08/16/2023. 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 2308016 and contact the laboratory. Sincerely, John R. Bourbon Chief, LSASD/LB Project Narrative: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 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. All SVOA results are non-detect. "J"and "L"qualification due to internal quality control outliers. 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: 9/5/2023 Page 1 of 38 Reporting Limit(s): UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 The Laboratory was able to achieve the standard laboratory reporting limits, where applicable, for each analyte requested except for the following analyte(s): NVOA GCMS The reporting level of 2.00 ug/L was raised to 5 ug/L for the following analyte(s): Phenol for the following samples: 2308016-02 The reporting level of 5.00 ug/L was raised to 30 ug/L for the following analyte(s): 4,6-Dinitro-2-Methylphenol, Pentachlorophenol for the following samples: 2308016-02 The reporting level of 5.00 ug/L was raised to 50 ug/L for the following analyte(s): 2,4-Dinitrophenol for the following samples: 2308016-02 SUMMARY REPORT FOR SAMPLES Field ID Laboratory ID Pretreated Discharge - Comp 2308016-01 Pretreated Discharge - G-C 2308016-02 TRIP BLANK 2308016-03 Pretreated Discharge - Grab#1to Grab#4 2308016-08 Pretreated Discharge - Grab 2308016-09 Matrix Aqueous Aqueous Aqueous Aqueous Aqueous Date Sampled 08/16/2023 10:55 08/16/2023 10:30 08/15/2023 07:32 08/16/2023 00:00 08/16/2023 10:30 Date Received 08/16/2023 14:24 08/16/2023 14:24 08/16/2023 14:24 08/16/2023 14:24 08/16/2023 14:24 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: 9/5/2023 Page 2 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analysis 608.3 Pesticides/PCBs-NPDES 624.1 VOA EPA-NPDES 625.1 SVOA NPDES Cyanide, Total Metals ICP TAL NPDES/DW Petroleum Hydrocarbons, Tot. Phosphorus Sulfate SUMMARY REPORT FOR METHODS Method EPA 608.3 SOP C-91 Rev 4.4 EPA 624.1 SOP C-89 Rev 3.7 EPA 625.1 SOP C-90 Rev 3.9 EPA 335.4 SOP C-28 Rev 2.8 EPA 200.7 SOP C-109 Rev 3.7 EPA 1664A SOP C-126 Rev 1.7 EPA 365.1 SOP C-68 Rev 2.8 EPA 300.0 SOP C-94 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: 9/5/2023 Page 3 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analyte Field ID: Pretreated Discharge - Comp Metals ICP Cadmium Chromium Copper Lead Nickel Silver Zinc Sanitary Phosphorus Sulfate Field ID: Pretreated Discharge - G-C NVOA GCMS Acenaphthene Acenaphthylene Anthracene Benzo(A)Anthracene Benzo(A)Pyrene Benzo(B)Fluoranthene Benzo(G,H,I)Perylene Benzo(K)Fluoranthene Chrysene Dibenzo(A,H)Anthracene Fluoranthene Fluorene Indeno(1,2,3-Cd)Pyrene Naphthalene Phenanthrene 1,2,4-Trichlorobenzene 2,4,6-Trichlorophenol Result Qualifier Reporting Limit Units Batch Sample ID: 2308016-01 Date and Time of Analysis* --55.4 47.3 --36.0 --132 0.349 192 U 3.00 ug/L B308070 5.00 ug/L B308070 10.0 ug/L B308070 U 8.00 ug/L B308070 20.0 ug/L B308070 U 5.00 ug/L B308070 20.0 ug/L B308070 0.0500 10.0 mg/L mg/L B308107 B308074 Sample ID: 2308016-02 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 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: 9/5/2023 Page 4 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analyte Field ID: Pretreated Discharge - G-C NVOA GCMS 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrophenol 2-Chloronaphthalene 2-Chlorophenol 2-Nitrophenol 3,3'- Dichlorobenzidine 4,6-Dinitro-2-Methylphenol 4-Bromophenyl-Phenylether 4-Chloro-3-Methylphenol 4-Chlorophenyl-Phenylether 4-Nitrophenol Bis(-2-Chloroethoxy)Methane Bis(2-Chloroethyl)Ether Bis(2-Chloroisopropyl)Ether Bis(2-Ethylhexyl)Phthalate Butylbenzylphthalate Azobenzene Diethylphthalate Dimethyl Phthalate Di-N-Butyl Phthalate Di-N-Octyl Phthalate Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone Result Qualifier Reporting Limit Units Batch Sample ID: 2308016-02 Date and Time of Analysis* --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 54.9 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 33.0 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 2.20 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 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: 9/5/2023 Page 5 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analyte Field ID: Pretreated Discharge - G-C NVOA GCMS Nitrobenzene N-Nitrosodimethylamine N-Nitroso-Di-N-Propylamine N-Nitrosodiphenylamine Pentachlorophenol Phenol Pyrene Pest/PCBs GC alpha-BHC gamma-BHC (Lindane) beta-BHC delta-BHC Heptachlor Aldrin Heptachlor epoxide Endosulfan I 4,4'-DDE Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Endosulfan sulfate Toxaphene Chlordane Aroclor 1016 Aroclor 1221 Aroclor 1232 Result Qualifier Reporting Limit Units Batch Sample ID: 2308016-02 Date and Time of Analysis* --- U J 5.49 ug/L B308073 --- U L 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 33.0 ug/L B308073 --- U J 5.49 ug/L B308073 --- U J 5.49 ug/L B308073 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.003 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.006 ug/L B308068 --- U 0.208 ug/L B308068 --- U 0.069 ug/L B308068 --- U J 0.035 ug/L B308068 --- U 0.069 ug/L B308068 --- U 0.035 ug/L B308068 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: 9/5/2023 Page 6 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analyte Result Qualifier Reporting Limit Units Batch Date and Time of Analysis* Field ID: Pretreated Discharge - G-C Pest/PCBs GC Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 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 Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene Sample ID: 2308016-02 --- U 0.035 ug/L B308068 --- U 0.035 ug/L B308068 --- U 0.035 ug/L B308068 --- U J 0.035 ug/L B308068 Sample ID: 2308016-03 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 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: 9/5/2023 Page 7 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analyte Result Qualifier Reporting Limit Units Batch Date and Time of Analysis* Field ID: TRIP BLANK VOA GCMS Dibromochloromethane Chlorobenzene Ethylbenzene Bromoform 1,1,2,2-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene Field ID: Pretreated Discharge - Grab#1to Grab#4 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 Bromodichloromethane cis-1,3-Dichloropropene Sample ID: 2308016-03 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 Sample ID: 2308016-08 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 9.53 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 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: 9/5/2023 Page 8 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Analyte Field ID: Pretreated Discharge - Grab#1to Grab#4 VOA GCMS 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: Pretreated Discharge - Grab GC Petroleum Hydrocarbons, Tot. Sanitary Cyanide, Total Result Qualifier Reporting Limit Units Batch Sample ID: 2308016-08 Date and Time of Analysis* --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 --- U 5.00 ug/L B308079 Sample ID: 2308016-09 --- U 6.58 mg/L B309003 --- U 10.0 ug/L B308090 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: 9/5/2023 Page 9 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 VOA GCMS - Quality Control Analyte Batch B308079 Blank (B308079-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 102 ug/L 100.0 101 ug/L 100.0 105 ug/L 100.0 102 60-140 101 60-140 105 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: 9/5/2023 Page 10 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 VOA GCMS - Quality Control Analyte Batch B308079 LCS (B308079-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 53.3 ug/L 50.00 107 19-205 49.0 ug/L 50.00 98.0 5-195 48.8 ug/L 50.00 97.6 15-185 54.2 ug/L 50.00 108 40-160 56.7 ug/L 50.00 113 50-150 59.1 ug/L 50.00 118 50-150 58.3 ug/L 50.00 117 60-140 67.8 ug/L 50.00 136 60-140 61.6 ug/L 50.00 123 70-130 59.0 ug/L 50.00 118 70-130 58.6 ug/L 50.00 117 70-135 60.2 ug/L 50.00 120 70-130 59.4 ug/L 50.00 119 70-130 59.4 ug/L 50.00 119 70-130 60.3 ug/L 50.00 121 65-135 59.6 ug/L 50.00 119 65-135 60.0 ug/L 50.00 120 35-165 60.0 ug/L 50.00 120 65-135 59.6 ug/L 50.00 119 25-175 60.4 ug/L 50.00 121 70-130 64.2 ug/L 50.00 128 50-150 59.3 ug/L 50.00 119 70-130 59.3 ug/L 50.00 119 70-130 60.4 ug/L 50.00 121 70-135 58.8 ug/L 50.00 118 65-135 63.1 ug/L 50.00 126 60-140 61.0 ug/L 50.00 122 70-130 62.2 ug/L 50.00 124 60-140 58.9 ug/L 50.00 118 70-130 59.0 ug/L 50.00 118 65-135 58.9 ug/L 50.00 118 65-135 101 ug/L 100.0 101 60-140 104 ug/L 100.0 104 60-140 109 ug/L 100.0 109 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: 9/5/2023 Page 11 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 VOA GCMS - Quality Control Analyte Batch B308079 LCS Dup (B308079-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 49.4 ug/L 50.00 98.9 19-205 7.53 20 45.0 ug/L 50.00 90.0 5-195 8.47 20 46.6 ug/L 50.00 93.2 15-185 4.53 20 50.8 ug/L 50.00 102 40-160 6.42 20 51.9 ug/L 50.00 104 50-150 8.84 20 55.1 ug/L 50.00 110 50-150 7.13 20 55.5 ug/L 50.00 111 60-140 4.92 20 63.8 ug/L 50.00 128 60-140 5.97 20 58.2 ug/L 50.00 116 70-130 5.74 20 54.6 ug/L 50.00 109 70-130 7.80 20 55.3 ug/L 50.00 111 70-135 5.95 20 56.4 ug/L 50.00 113 70-130 6.57 20 55.2 ug/L 50.00 110 70-130 7.17 20 56.5 ug/L 50.00 113 70-130 5.00 20 55.9 ug/L 50.00 112 65-135 7.59 20 56.0 ug/L 50.00 112 65-135 6.16 20 56.0 ug/L 50.00 112 35-165 6.97 20 55.6 ug/L 50.00 111 65-135 7.60 20 56.4 ug/L 50.00 113 25-175 5.55 20 56.1 ug/L 50.00 112 70-130 7.45 20 60.3 ug/L 50.00 121 50-150 6.25 20 55.7 ug/L 50.00 111 70-130 6.35 20 54.4 ug/L 50.00 109 70-130 8.49 20 56.8 ug/L 50.00 114 70-135 6.12 20 55.4 ug/L 50.00 111 65-135 6.04 20 58.2 ug/L 50.00 116 60-140 8.18 20 57.8 ug/L 50.00 116 70-130 5.49 20 58.9 ug/L 50.00 118 60-140 5.43 20 55.4 ug/L 50.00 111 70-130 6.14 20 55.6 ug/L 50.00 111 65-135 5.83 20 55.3 ug/L 50.00 111 65-135 6.38 20 100 ug/L 100.0 100 60-140 103 ug/L 100.0 103 60-140 108 ug/L 100.0 108 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: 9/5/2023 Page 12 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 VOA GCMS - Quality Control Analyte Batch B308079 Matrix Spike (B308079-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: 2308016-08 41.5 ug/L 40.8 ug/L 43.7 ug/L 44.7 ug/L 47.1 ug/L 46.3 ug/L 47.3 ug/L 49.3 ug/L 45.7 ug/L 48.1 ug/L 56.5 ug/L 47.4 ug/L 47.2 ug/L 46.2 ug/L 46.2 ug/L 45.6 ug/L 47.1 ug/L 47.4 ug/L 46.7 ug/L 46.6 ug/L 47.0 ug/L 46.8 ug/L 46.0 ug/L 46.2 ug/L 46.8 ug/L 48.2 ug/L 47.0 ug/L 49.2 ug/L 47.9 ug/L 49.1 ug/L 48.5 ug/L 100 ug/L 103 ug/L 106 ug/L 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 9.53 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 50.00 0.00 100.0 100.0 100.0 83.0 19-273 81.7 49-251 87.5 21-242 89.4 14-230 94.3 17-181 92.6 52-234 94.7 69-221 98.6 40-160 91.4 54-156 96.2 59-155 94.0 51-138 94.8 52-162 94.4 70-140 92.4 49-155 92.3 37-151 91.3 70-157 94.1 74-210 94.9 35-155 93.4 80-227 93.2 47-150 94.0 17-183 93.5 52-150 92.0 64-148 92.4 53-149 93.7 37-160 96.3 37-162 93.9 45-169 98.3 46-157 95.7 59-156 98.2 18-190 97.1 18-190 100 60-140 103 60-140 106 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: 9/5/2023 Page 13 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 VOA GCMS - Quality Control Analyte Batch B308079 Matrix Spike Dup (B308079-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: 2308016-08 42.4 ug/L 40.8 ug/L 44.4 ug/L 44.7 ug/L 47.1 ug/L 46.5 ug/L 48.2 ug/L 53.1 ug/L 47.3 ug/L 49.2 ug/L 58.0 ug/L 48.9 ug/L 48.4 ug/L 48.1 ug/L 48.2 ug/L 47.8 ug/L 48.7 ug/L 50.2 ug/L 49.8 ug/L 48.6 ug/L 50.2 ug/L 50.2 ug/L 48.2 ug/L 50.2 ug/L 48.5 ug/L 50.5 ug/L 50.8 ug/L 53.8 ug/L 51.0 ug/L 50.9 ug/L 51.0 ug/L 99.6 ug/L 102 ug/L 108 ug/L 50.00 0.00 84.8 19-273 2.17 28 50.00 0.00 81.6 49-251 0.0490 28 50.00 0.00 88.8 21-242 1.52 28 50.00 0.00 89.4 14-230 0.0224 28 50.00 0.00 94.3 17-181 0.00 28 50.00 0.00 93.0 52-234 0.474 28 50.00 0.00 96.4 69-221 1.82 28 50.00 0.00 106 40-160 7.52 28 50.00 0.00 94.6 54-156 3.44 28 50.00 0.00 98.4 59-155 2.26 28 50.00 9.53 97.0 51-138 3.16 28 50.00 0.00 97.8 52-162 3.09 28 50.00 0.00 96.7 70-140 2.41 28 50.00 0.00 96.3 49-155 4.14 28 50.00 0.00 96.3 37-151 4.22 28 50.00 0.00 95.6 70-157 4.69 28 50.00 0.00 97.4 74-210 3.47 28 50.00 0.00 100 35-155 5.71 28 50.00 0.00 99.6 80-227 6.44 28 50.00 0.00 97.1 47-150 4.16 28 50.00 0.00 100 17-183 6.62 28 50.00 0.00 100 52-150 7.14 28 50.00 0.00 96.4 64-148 4.71 28 50.00 0.00 100 53-149 8.30 28 50.00 0.00 97.0 37-160 3.50 28 50.00 0.00 101 37-162 4.69 28 50.00 0.00 102 45-169 7.88 28 50.00 0.00 108 46-157 8.94 28 50.00 0.00 102 59-156 6.41 28 50.00 0.00 102 18-190 3.54 28 50.00 0.00 102 18-190 4.86 28 100.0 100.0 100.0 99.6 60-140 102 60-140 108 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: 9/5/2023 Page 14 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B308073 Blank (B308073-BLK1) Acenaphthene Acenaphthylene Anthracene Benzo(A)Anthracene Benzo(A)Pyrene Benzo(B)Fluoranthene Benzo(G,H,I)Perylene Benzo(K)Fluoranthene Chrysene Dibenzo(A,H)Anthracene Fluoranthene Fluorene Indeno(1,2,3-Cd)Pyrene Naphthalene Phenanthrene 1,2,4-Trichlorobenzene 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrophenol 2-Chloronaphthalene 2-Chlorophenol 2-Nitrophenol 3,3'- Dichlorobenzidine 4,6-Dinitro-2-Methylphenol 4-Bromophenyl-Phenylether 4-Chloro-3-Methylphenol 4-Chlorophenyl-Phenylether 4-Nitrophenol Bis(-2-Chloroethoxy)Methane Bis(2-Chloroethyl)Ether Bis(2-Chloroisopropyl)Ether Bis(2-Ethylhexyl)Phthalate --- 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: 9/5/2023 RPD Limit Page 15 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Batch B308073 Blank (B308073-BLK1) Butylbenzylphthalate Azobenzene Diethylphthalate Dimethyl Phthalate Di-N-Butyl Phthalate Di-N-Octyl Phthalate Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone Nitrobenzene N-Nitrosodimethylamine N-Nitroso-Di-N-Propylamine N-Nitrosodiphenylamine Pentachlorophenol Phenol Pyrene Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 LCS (B308073-BS1) Acenaphthene Acenaphthylene Anthracene Benzo(A)Anthracene Benzo(A)Pyrene Benzo(B)Fluoranthene Benzo(G,H,I)Perylene Benzo(K)Fluoranthene 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 17.4 ug/L 50.00 8.13 ug/L 50.00 16.9 ug/L 50.00 16.2 ug/L 50.00 17.9 ug/L 50.00 18.9 ug/L 50.00 24.0 ug/L 50.00 41.6 5.00 ug/L 50.00 37.6 5.00 ug/L 50.00 36.1 5.00 ug/L 50.00 39.0 5.00 ug/L 50.00 38.2 5.00 ug/L 50.00 41.9 5.00 ug/L 50.00 44.5 5.00 ug/L 50.00 39.8 5.00 ug/L 50.00 34.9 60-140 16.3 60-140 33.9 60-140 32.5 60-140 35.8 60-140 37.7 60-140 47.9 60-140 83.1 47-145 75.2 33-145 72.2 27-133 77.9 33-143 76.4 17-163 83.8 24-159 89.0 35-219 79.7 11-162 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: 9/5/2023 Page 16 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B308073 LCS (B308073-BS1) Chrysene Dibenzo(A,H)Anthracene Fluoranthene Fluorene Indeno(1,2,3-Cd)Pyrene Naphthalene Phenanthrene 1,2,4-Trichlorobenzene 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrophenol 2-Chloronaphthalene 2-Chlorophenol 2-Nitrophenol 3,3'- Dichlorobenzidine 4,6-Dinitro-2-Methylphenol 4-Bromophenyl-Phenylether 4-Chloro-3-Methylphenol 4-Chlorophenyl-Phenylether 4-Nitrophenol Bis(-2-Chloroethoxy)Methane Bis(2-Chloroethyl)Ether Bis(2-Chloroisopropyl)Ether Bis(2-Ethylhexyl)Phthalate Butylbenzylphthalate Azobenzene Diethylphthalate Dimethyl Phthalate Di-N-Butyl Phthalate Di-N-Octyl Phthalate Hexachlorobenzene Hexachlorobutadiene 39.8 5.00 ug/L 50.00 41.8 5.00 ug/L 50.00 37.5 5.00 ug/L 50.00 33.5 5.00 ug/L 50.00 43.0 5.00 ug/L 50.00 29.7 5.00 ug/L 50.00 36.3 5.00 ug/L 50.00 27.1 5.00 ug/L 50.00 42.5 5.00 ug/L 50.00 34.7 5.00 ug/L 50.00 31.6 5.00 ug/L 50.00 37.4 5.00 ug/L 50.00 45.1 5.00 ug/L 50.00 37.6 5.00 ug/L 50.00 37.9 5.00 ug/L 50.00 26.0 5.00 ug/L 50.00 36.4 5.00 ug/L 50.00 45.4 5.00 ug/L 50.00 40.0 5.00 ug/L 50.00 36.1 5.00 ug/L 50.00 39.3 5.00 ug/L 50.00 34.2 5.00 ug/L 50.00 22.7 5.00 ug/L 50.00 31.9 5.00 ug/L 50.00 24.8 5.00 ug/L 50.00 21.8 5.00 ug/L 50.00 48.6 5.00 ug/L 50.00 39.6 5.00 ug/L 50.00 33.7 5.00 ug/L 50.00 31.6 5.00 ug/L 50.00 30.0 5.00 ug/L 50.00 38.6 5.00 ug/L 50.00 48.1 5.00 ug/L 50.00 37.0 5.00 ug/L 50.00 28.2 5.00 ug/L 50.00 79.7 17-168 83.7 33-227 75.1 26-137 67.1 59-121 86.0 39-171 59.4 21-133 72.7 54-120 54.2 44-142 85.0 37-144 69.5 39-135 63.3 32-120 74.9 39-139 90.2 50-158 75.3 21-191 75.8 60-120 52.0 23-134 72.8 29-182 90.9 38-262 80.0 17-181 72.3 53-127 78.5 22-147 68.4 25-158 45.4 9-132 63.9 33-184 49.5 12-158 43.7 36-166 97.1 8-158 79.3 38-152 67.5 60-115 63.3 31-114 60.1 28-120 77.2 1-120 96.2 4-146 73.9 35-152 56.3 24-120 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: 9/5/2023 RPD Limit Page 17 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Batch B308073 LCS (B308073-BS1) Hexachlorocyclopentadiene Hexachloroethane Isophorone Nitrobenzene N-Nitrosodimethylamine N-Nitroso-Di-N-Propylamine N-Nitrosodiphenylamine Pentachlorophenol Phenol Pyrene Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 LCS Dup (B308073-BSD1) Acenaphthene Acenaphthylene Anthracene Benzo(A)Anthracene Benzo(A)Pyrene Benzo(B)Fluoranthene Benzo(G,H,I)Perylene Benzo(K)Fluoranthene Chrysene Dibenzo(A,H)Anthracene Fluoranthene Fluorene Indeno(1,2,3-Cd)Pyrene Naphthalene Phenanthrene 1,2,4-Trichlorobenzene Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 37.2 5.00 ug/L 50.00 25.2 5.00 ug/L 50.00 36.4 5.00 ug/L 50.00 31.5 5.00 ug/L 50.00 15.3 5.00 ug/L 50.00 29.9 5.00 ug/L 50.00 39.1 5.00 ug/L 50.00 30.4 5.00 ug/L 50.00 11.5 5.00 ug/L 50.00 37.4 5.00 ug/L 50.00 20.2 ug/L 50.00 9.69 ug/L 50.00 26.1 ug/L 50.00 25.3 ug/L 50.00 36.9 ug/L 50.00 29.4 ug/L 50.00 35.0 ug/L 50.00 26.9 5.00 ug/L 50.00 24.4 5.00 ug/L 50.00 33.2 5.00 ug/L 50.00 31.0 5.00 ug/L 50.00 33.5 5.00 ug/L 50.00 35.5 5.00 ug/L 50.00 42.0 5.00 ug/L 50.00 33.9 5.00 ug/L 50.00 32.0 5.00 ug/L 50.00 39.2 5.00 ug/L 50.00 33.0 5.00 ug/L 50.00 31.7 5.00 ug/L 50.00 40.7 5.00 ug/L 50.00 19.8 5.00 ug/L 50.00 33.7 5.00 ug/L 50.00 17.6 5.00 ug/L 50.00 74.3 15-76 50.4 40-120 72.8 21-196 63.0 35-180 30.6 17-127 59.8 43-230 78.1 79-139 60.9 14-176 22.9 5-120 74.9 52-120 40.4 60-140 19.4 60-140 52.2 60-140 50.6 60-140 73.9 60-140 58.7 60-140 70.0 60-140 53.8 47-145 42.7 30 48.9 33-145 42.4 30 66.3 27-133 8.40 30 62.0 33-143 22.8 30 67.1 17-163 13.0 30 70.9 24-159 16.7 30 84.0 35-219 5.78 30 67.9 11-162 16.0 30 63.9 17-168 21.9 30 78.4 33-227 6.52 30 65.9 26-137 12.9 30 63.3 59-121 5.74 30 81.3 39-171 5.62 30 39.5 21-133 40.3 30 67.3 54-120 7.66 30 35.2 44-142 42.6 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: 9/5/2023 Page 18 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Level Source Result %REC %REC Limits Batch B308073 LCS Dup (B308073-BSD1) 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrophenol 2-Chloronaphthalene 2-Chlorophenol 2-Nitrophenol 3,3'- Dichlorobenzidine 4,6-Dinitro-2-Methylphenol 4-Bromophenyl-Phenylether 4-Chloro-3-Methylphenol 4-Chlorophenyl-Phenylether 4-Nitrophenol Bis(-2-Chloroethoxy)Methane Bis(2-Chloroethyl)Ether Bis(2-Chloroisopropyl)Ether Bis(2-Ethylhexyl)Phthalate Butylbenzylphthalate Azobenzene Diethylphthalate Dimethyl Phthalate Di-N-Butyl Phthalate Di-N-Octyl Phthalate Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone Nitrobenzene N-Nitrosodimethylamine N-Nitroso-Di-N-Propylamine N-Nitrosodiphenylamine Pentachlorophenol 29.9 5.00 ug/L 50.00 25.0 5.00 ug/L 50.00 23.4 5.00 ug/L 50.00 37.1 5.00 ug/L 50.00 33.1 5.00 ug/L 50.00 22.6 5.00 ug/L 50.00 23.6 5.00 ug/L 50.00 23.0 5.00 ug/L 50.00 26.8 5.00 ug/L 50.00 39.5 5.00 ug/L 50.00 37.0 5.00 ug/L 50.00 34.2 5.00 ug/L 50.00 29.2 5.00 ug/L 50.00 32.1 5.00 ug/L 50.00 14.9 5.00 ug/L 50.00 22.5 5.00 ug/L 50.00 22.1 5.00 ug/L 50.00 18.5 5.00 ug/L 50.00 36.1 5.00 ug/L 50.00 27.7 5.00 ug/L 50.00 32.2 5.00 ug/L 50.00 25.4 5.00 ug/L 50.00 11.4 5.00 ug/L 50.00 33.2 5.00 ug/L 50.00 35.6 5.00 ug/L 50.00 34.2 5.00 ug/L 50.00 16.5 5.00 ug/L 50.00 18.7 5.00 ug/L 50.00 16.4 5.00 ug/L 50.00 26.3 5.00 ug/L 50.00 23.2 5.00 ug/L 50.00 14.7 5.00 ug/L 50.00 22.2 5.00 ug/L 50.00 37.8 5.00 ug/L 50.00 27.2 5.00 ug/L 50.00 59.8 37-144 50.0 39-135 46.7 32-120 74.3 39-139 66.2 50-158 45.1 21-191 47.1 60-120 45.9 23-134 53.6 29-182 78.9 38-262 74.0 17-181 68.3 53-127 58.3 22-147 64.1 25-158 29.8 9-132 44.9 33-184 44.2 12-158 37.1 36-166 72.2 8-158 55.3 38-152 64.4 60-115 50.8 31-114 22.9 28-120 66.4 1-120 71.3 4-146 68.4 35-152 33.0 24-120 37.4 15-76 32.8 40-120 52.5 21-196 46.4 35-180 29.3 17-127 44.4 43-230 75.6 79-139 54.5 14-176 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: 9/5/2023 RPD 34.8 32.7 30.2 0.858 30.7 50.1 46.7 12.4 30.3 14.1 7.87 5.63 29.5 6.49 41.4 34.9 11.3 16.4 29.4 35.6 4.61 21.8 89.7 15.1 29.8 7.67 52.1 66.1 42.3 32.4 30.2 4.14 29.5 3.33 11.1 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 19 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Batch B308073 LCS Dup (B308073-BSD1) Phenol Pyrene Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Surrogate: Chrysene-D12 Matrix Spike (B308073-MS1) Acenaphthene Acenaphthylene Anthracene Benzo(A)Anthracene Benzo(A)Pyrene Benzo(B)Fluoranthene Benzo(G,H,I)Perylene Benzo(K)Fluoranthene Chrysene Dibenzo(A,H)Anthracene Fluoranthene Fluorene Indeno(1,2,3-Cd)Pyrene Naphthalene Phenanthrene 1,2,4-Trichlorobenzene 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrophenol 2-Chloronaphthalene 2-Chlorophenol Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 10.1 5.00 ug/L 50.00 31.8 5.00 ug/L 50.00 18.9 ug/L 50.00 8.79 ug/L 50.00 18.3 ug/L 50.00 17.8 ug/L 50.00 25.8 ug/L 50.00 27.5 ug/L 50.00 28.8 ug/L 50.00 20.2 5-120 12.6 30 63.5 52-120 16.4 30 37.7 60-140 17.6 60-140 36.6 60-140 35.6 60-140 51.5 60-140 55.0 60-140 57.6 60-140 Source: 2308016-02 31.5 5.43 ug/L 30.9 5.43 ug/L 32.0 5.43 ug/L 32.1 5.43 ug/L 34.6 5.43 ug/L 34.0 5.43 ug/L 39.2 5.43 ug/L 32.4 5.43 ug/L 33.5 5.43 ug/L 37.2 5.43 ug/L 32.6 5.43 ug/L 30.5 5.43 ug/L 37.2 5.43 ug/L 23.9 5.43 ug/L 31.9 5.43 ug/L 22.3 5.43 ug/L 36.8 5.43 ug/L 38.7 5.43 ug/L 27.5 5.43 ug/L 33.7 5.43 ug/L 35.3 5.43 ug/L 44.6 5.43 ug/L 29.2 5.43 ug/L 27.4 5.43 ug/L 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 58.0 47-145 56.9 33-145 58.8 27-133 59.0 33-143 63.6 17-163 62.6 24-159 72.1 35-219 59.6 11-162 61.7 17-168 68.5 33-227 60.1 26-137 56.1 59-121 68.4 39-171 43.9 21-133 58.7 54-120 41.0 44-142 67.7 37-144 71.2 39-135 50.6 32-120 62.0 39-139 64.9 50-158 82.0 21-191 53.8 60-120 50.4 23-134 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: 9/5/2023 Page 20 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B308073 Matrix Spike (B308073-MS1) 2-Nitrophenol 3,3'- Dichlorobenzidine 4,6-Dinitro-2-Methylphenol 4-Bromophenyl-Phenylether 4-Chloro-3-Methylphenol 4-Chlorophenyl-Phenylether 4-Nitrophenol Bis(-2-Chloroethoxy)Methane Bis(2-Chloroethyl)Ether Bis(2-Chloroisopropyl)Ether Bis(2-Ethylhexyl)Phthalate Butylbenzylphthalate Azobenzene Diethylphthalate Dimethyl Phthalate Di-N-Butyl Phthalate Di-N-Octyl Phthalate Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone Nitrobenzene N-Nitrosodimethylamine N-Nitroso-Di-N-Propylamine N-Nitrosodiphenylamine Pentachlorophenol Phenol Pyrene Surrogate: 2-Fluoroaniline Surrogate: Phenol-D6 Surrogate: Naphthalene-D8 Surrogate: 1-Fluoronaphthalene Surrogate: 2,4-Dibromophenol Surrogate: Anthracene-D10 Source: 2308016-02 34.0 5.43 ug/L 29.4 5.43 ug/L 40.5 5.43 ug/L 31.8 5.43 ug/L 35.2 5.43 ug/L 30.5 5.43 ug/L 20.8 5.43 ug/L 25.4 5.43 ug/L 22.0 5.43 ug/L 21.2 5.43 ug/L 41.3 5.43 ug/L 34.6 5.43 ug/L 30.7 5.43 ug/L 28.5 5.43 ug/L 24.4 5.43 ug/L 34.2 5.43 ug/L 41.7 5.43 ug/L 31.7 5.43 ug/L 24.1 5.43 ug/L 23.5 5.43 ug/L 21.2 5.43 ug/L 26.3 5.43 ug/L 25.6 5.43 ug/L 15.6 5.43 ug/L 24.3 5.43 ug/L 30.9 5.43 ug/L 33.2 5.43 ug/L 13.6 5.43 ug/L 32.4 5.43 ug/L 18.2 ug/L 11.8 ug/L 20.7 ug/L 20.4 ug/L 31.8 ug/L 26.7 ug/L 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 ND 54.35 54.35 54.35 54.35 54.35 54.35 62.6 29-182 54.2 38-262 74.5 17-181 58.6 53-127 64.7 22-147 56.1 25-158 38.3 9-132 46.8 33-184 40.6 12-158 39.0 36-166 76.0 8-158 63.6 38-152 56.5 61-106 52.4 31-114 44.8 28-120 62.9 1-120 76.7 4-146 58.3 35-152 44.3 24-120 43.2 15-76 39.0 40-120 48.4 21-196 47.1 35-180 28.7 17-127 44.7 43-230 56.9 79-139 61.1 14-176 25.0 5-120 59.6 52-120 33.4 60-140 21.8 60-140 38.1 60-140 37.5 60-140 58.6 60-140 49.1 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: 9/5/2023 RPD Limit Page 21 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Batch B308073 Matrix Spike (B308073-MS1) Surrogate: Chrysene-D12 Matrix Spike Dup (B308073-MSD1) Acenaphthene Acenaphthylene Anthracene Benzo(A)Anthracene Benzo(A)Pyrene Benzo(B)Fluoranthene Benzo(G,H,I)Perylene Benzo(K)Fluoranthene Chrysene Dibenzo(A,H)Anthracene Fluoranthene Fluorene Indeno(1,2,3-Cd)Pyrene Naphthalene Phenanthrene 1,2,4-Trichlorobenzene 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrophenol 2-Chloronaphthalene 2-Chlorophenol 2-Nitrophenol 3,3'- Dichlorobenzidine 4,6-Dinitro-2-Methylphenol 4-Bromophenyl-Phenylether 4-Chloro-3-Methylphenol 4-Chlorophenyl-Phenylether 4-Nitrophenol Bis(-2-Chloroethoxy)Methane Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Source: 2308016-02 31.1 ug/L Source: 2308016-02 37.5 5.75 ug/L 37.4 5.75 ug/L 46.7 5.75 ug/L 39.3 5.75 ug/L 46.6 5.75 ug/L 43.9 5.75 ug/L 58.2 5.75 ug/L 42.7 5.75 ug/L 41.1 5.75 ug/L 54.8 5.75 ug/L 43.1 5.75 ug/L 46.8 5.75 ug/L 54.3 5.75 ug/L 29.3 5.75 ug/L 46.7 5.75 ug/L 27.6 5.75 ug/L 43.8 5.75 ug/L 47.7 5.75 ug/L 36.6 5.75 ug/L 53.3 5.75 ug/L 42.9 5.75 ug/L 49.6 5.75 ug/L 35.1 5.75 ug/L 33.1 5.75 ug/L 40.7 5.75 ug/L 37.4 5.75 ug/L 56.7 5.75 ug/L 49.0 5.75 ug/L 42.9 5.75 ug/L 47.1 5.75 ug/L 23.9 5.75 ug/L 32.4 5.75 ug/L 54.35 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.47 ND 57.2 60-140 65.3 47-145 17.4 65.1 33-145 18.9 81.2 27-133 37.4 68.4 33-143 20.3 81.1 17-163 29.6 76.3 24-159 25.3 101 35-219 39.1 74.3 11-162 27.4 71.4 17-168 20.2 95.3 33-227 38.1 75.0 26-137 27.6 81.5 59-121 42.2 94.5 39-171 37.5 51.0 21-133 20.5 81.2 54-120 37.6 47.9 44-142 21.1 76.1 37-144 17.4 83.0 39-135 20.9 63.7 32-120 28.4 92.7 39-139 45.0 74.6 50-158 19.4 86.4 21-191 10.7 61.1 60-120 18.4 57.5 23-134 18.8 70.9 29-182 17.9 65.0 38-262 23.7 98.7 17-181 33.4 85.2 53-127 42.4 74.7 22-147 19.8 81.9 25-158 42.7 41.6 9-132 13.8 56.5 33-184 24.2 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: 9/5/2023 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 Page 22 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 NVOA GCMS - Quality Control Analyte Batch B308073 Matrix Spike Dup (B308073-MSD1) Bis(2-Chloroethyl)Ether Bis(2-Chloroisopropyl)Ether Bis(2-Ethylhexyl)Phthalate Butylbenzylphthalate Azobenzene Diethylphthalate Dimethyl Phthalate Di-N-Butyl Phthalate Di-N-Octyl Phthalate Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone Nitrobenzene N-Nitrosodimethylamine N-Nitroso-Di-N-Propylamine N-Nitrosodiphenylamine Pentachlorophenol Phenol Pyrene 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: 2308016-02 28.7 5.75 ug/L 57.47 ND 49.9 12-158 26.2 24 27.2 5.75 ug/L 57.47 ND 47.4 36-166 24.9 24 49.3 5.75 ug/L 57.47 ND 85.8 8-158 17.6 24 39.7 5.75 ug/L 57.47 ND 69.2 38-152 13.9 24 46.4 5.75 ug/L 57.47 ND 80.7 61-106 40.6 24 42.6 5.75 ug/L 57.47 ND 74.2 31-114 39.7 24 25.3 5.75 ug/L 57.47 ND 44.0 28-120 3.74 24 48.1 5.75 ug/L 57.47 ND 83.7 1-120 33.8 24 50.2 5.75 ug/L 57.47 ND 87.4 4-146 18.6 24 48.8 5.75 ug/L 57.47 ND 84.9 35-152 42.5 24 29.3 5.75 ug/L 57.47 ND 51.1 24-120 19.8 24 29.7 5.75 ug/L 57.47 ND 51.7 15-76 23.6 24 26.2 5.75 ug/L 57.47 ND 45.6 40-120 21.3 24 33.3 5.75 ug/L 57.47 ND 57.9 21-196 23.4 24 32.1 5.75 ug/L 57.47 ND 55.8 35-180 22.6 24 19.1 5.75 ug/L 57.47 ND 33.2 17-127 20.1 24 31.1 5.75 ug/L 57.47 ND 54.2 43-230 24.7 24 48.2 5.75 ug/L 57.47 ND 83.8 79-139 43.6 24 45.1 5.75 ug/L 57.47 ND 78.6 14-176 30.5 24 17.9 5.75 ug/L 57.47 ND 31.2 5-120 27.5 24 41.8 5.75 ug/L 57.47 ND 72.7 52-120 25.3 24 22.2 ug/L 57.47 38.6 60-140 15.3 ug/L 57.47 26.6 60-140 25.9 ug/L 57.47 45.1 60-140 25.3 ug/L 57.47 44.1 60-140 37.6 ug/L 57.47 65.3 60-140 37.9 ug/L 57.47 65.9 60-140 35.6 ug/L 57.47 62.0 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: 9/5/2023 Page 23 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Batch B308068 Blank (B308068-BLK1) alpha-BHC alpha-BHC [2C] gamma-BHC (Lindane) gamma-BHC (Lindane) [2C] beta-BHC beta-BHC [2C] delta-BHC delta-BHC [2C] Heptachlor Heptachlor [2C] Aldrin Aldrin [2C] Heptachlor epoxide Heptachlor epoxide [2C] Endosulfan I Endosulfan I [2C] 4,4'-DDE 4,4'-DDE [2C] Dieldrin Dieldrin [2C] Endrin Endrin [2C] 4,4'-DDD 4,4'-DDD [2C] Endosulfan II Endosulfan II [2C] 4,4'-DDT 4,4'-DDT [2C] Endrin aldehyde Endrin aldehyde [2C] Endosulfan sulfate Endosulfan sulfate [2C] Toxaphene Toxaphene [2C] Chlordane --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.002 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.005 ug/L --- U 0.188 ug/L --- U 0.188 ug/L --- U 0.062 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: 9/5/2023 RPD Limit Page 24 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Batch B308068 Blank (B308068-BLK1) Chlordane [2C] Aroclor 1016 Aroclor 1016 [2C] Aroclor 1221 Aroclor 1221 [2C] Aroclor 1232 Aroclor 1232 [2C] Aroclor 1242 Aroclor 1242 [2C] Aroclor 1248 Aroclor 1248 [2C] Aroclor 1254 Aroclor 1254 [2C] Aroclor 1260 Aroclor 1260 [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Surrogate: DCB [2C] LCS (B308068-BS1) alpha-BHC alpha-BHC [2C] gamma-BHC (Lindane) gamma-BHC (Lindane) [2C] beta-BHC beta-BHC [2C] delta-BHC delta-BHC [2C] Heptachlor Heptachlor [2C] Aldrin Aldrin [2C] Heptachlor epoxide Heptachlor epoxide [2C] Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD --- U --- U --- U --- U --- U --- U --- U --- U --- U --- U --- U --- U --- U --- U --- U 0.0451 0.0548 0.0538 0.0464 0.02 0.02 0.01 0.02 0.01 0.01 0.02 0.02 0.01 0.02 0.02 0.02 0.01 0.02 0.062 ug/L 0.031 ug/L 0.031 ug/L 0.062 ug/L 0.062 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L ug/L ug/L ug/L ug/L 0.06000 0.06000 0.06000 0.06000 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 75.2 29-93 91.4 29-93 89.6 24-98 77.3 24-98 75.3 37-140 81.0 37-140 73.8 32-140 81.2 32-140 62.0 17-147 70.3 17-147 76.4 19-140 82.7 19-140 74.2 34-140 76.1 34-140 75.0 42-140 82.0 42-140 73.7 37-142 82.0 37-142 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: 9/5/2023 RPD Limit Page 25 of 38 Analyte Batch B308068 LCS (B308068-BS1) Endosulfan I Endosulfan I [2C] 4,4'-DDE 4,4'-DDE [2C] Dieldrin Dieldrin [2C] Endrin Endrin [2C] 4,4'-DDD 4,4'-DDD [2C] Endosulfan II Endosulfan II [2C] 4,4'-DDT 4,4'-DDT [2C] Endrin aldehyde Endrin aldehyde [2C] Endosulfan sulfate Endosulfan sulfate [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Surrogate: DCB [2C] LCS (B308068-BS2) Aroclor 1016 Aroclor 1016 [2C] Aroclor 1260 Aroclor 1260 [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Surrogate: DCB [2C] UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 0.01 0.01 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.03 0.03 0.03 0.04 0.03 0.0411 0.0481 0.0449 0.0377 0.22 0.22 0.22 0.22 0.0458 0.0522 0.0506 0.0431 0.002 ug/L 0.002 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L ug/L ug/L ug/L ug/L 0.02000 0.02000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.06000 0.06000 0.06000 0.06000 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L ug/L ug/L ug/L ug/L 0.2500 0.2500 0.2500 0.2500 0.06000 0.06000 0.06000 0.06000 64.6 45-153 65.8 45-153 83.8 30-145 86.8 30-145 83.4 36-146 83.3 36-146 85.2 30-147 87.1 30-147 84.1 31-141 82.5 31-141 67.5 50-202 66.9 50-202 92.1 25-160 85.9 25-160 78.4 10-154 83.0 10-154 93.0 26-144 81.9 26-144 68.5 29-93 80.1 29-93 74.8 24-98 62.8 24-98 89.4 50-140 86.6 50-140 87.4 8-140 87.2 8-140 76.3 29-93 86.9 29-93 84.3 24-98 71.9 24-98 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: 9/5/2023 Page 26 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Batch B308068 LCS Dup (B308068-BSD1) alpha-BHC alpha-BHC [2C] gamma-BHC (Lindane) gamma-BHC (Lindane) [2C] beta-BHC beta-BHC [2C] delta-BHC delta-BHC [2C] Heptachlor Heptachlor [2C] Aldrin Aldrin [2C] Heptachlor epoxide Heptachlor epoxide [2C] Endosulfan I Endosulfan I [2C] 4,4'-DDE 4,4'-DDE [2C] Dieldrin Dieldrin [2C] Endrin Endrin [2C] 4,4'-DDD 4,4'-DDD [2C] Endosulfan II Endosulfan II [2C] 4,4'-DDT 4,4'-DDT [2C] Endrin aldehyde Endrin aldehyde [2C] Endosulfan sulfate Endosulfan sulfate [2C] Surrogate: TCMX Surrogate: TCMX [2C] Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 0.01 0.02 0.01 0.02 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.0409 0.0454 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.002 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L 0.005 ug/L ug/L ug/L 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.02000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.04000 0.06000 0.06000 71.9 37-140 4.50 36 76.4 37-140 5.77 36 70.4 32-140 4.72 39 76.9 32-140 5.45 39 61.3 17-147 1.23 44 68.7 17-147 2.30 44 74.2 19-140 2.98 52 78.1 19-140 5.82 52 72.0 34-140 3.05 43 71.8 34-140 5.77 43 72.3 42-140 3.73 35 77.4 42-140 5.81 35 67.1 37-142 9.37 26 74.7 37-142 9.28 26 60.6 45-153 6.41 28 61.5 45-153 6.80 28 80.1 30-145 4.57 35 80.6 30-145 7.31 35 77.4 36-146 7.39 49 76.8 36-146 8.04 49 78.8 30-147 7.81 48 80.8 30-147 7.46 48 77.7 31-141 8.00 39 76.9 31-141 6.94 39 62.4 50-202 7.85 53 62.4 50-202 6.94 53 86.8 25-160 5.99 42 81.2 25-160 5.60 42 73.5 10-154 6.35 30 80.1 10-154 3.61 30 86.8 26-144 6.92 38 76.2 26-144 7.18 38 68.1 29-93 75.7 29-93 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: 9/5/2023 Page 27 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Batch B308068 LCS Dup (B308068-BSD1) Surrogate: DCB Surrogate: DCB [2C] LCS Dup (B308068-BSD2) Aroclor 1016 Aroclor 1016 [2C] Aroclor 1260 Aroclor 1260 [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Surrogate: DCB [2C] Matrix Spike (B308068-MS1) alpha-BHC alpha-BHC [2C] gamma-BHC (Lindane) gamma-BHC (Lindane) [2C] beta-BHC beta-BHC [2C] delta-BHC delta-BHC [2C] Heptachlor Heptachlor [2C] Aldrin Aldrin [2C] Heptachlor epoxide Heptachlor epoxide [2C] Endosulfan I Endosulfan I [2C] 4,4'-DDE 4,4'-DDE [2C] Dieldrin Dieldrin [2C] Endrin Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 0.0492 0.0415 ug/L 0.06000 ug/L 0.06000 81.9 24-98 69.2 24-98 0.20 0.24 0.20 0.20 0.0401 0.0468 0.0493 0.0422 0.031 ug/L 0.031 ug/L 0.031 ug/L 0.031 ug/L ug/L ug/L ug/L ug/L 0.2500 0.2500 0.2500 0.2500 0.06000 0.06000 0.06000 0.06000 81.2 50-140 9.58 36 96.4 50-140 10.7 36 80.5 8-140 8.16 38 81.6 8-140 6.68 38 66.9 29-93 78.1 29-93 82.2 24-98 70.4 24-98 Source: 2308016-02 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.02 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.02 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.02 0.003 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.03 0.006 ug/L 0.03 0.006 ug/L 0.03 0.006 ug/L 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.02273 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 62.1 37-140 62.7 37-140 60.5 32-140 64.1 32-140 52.9 17-147 68.7 17-147 51.2 19-140 64.5 19-140 67.8 34-140 58.7 34-140 51.8 42-140 53.8 42-140 55.9 37-142 61.1 37-142 55.5 45-153 66.2 45-153 37.3 30-145 41.5 30-145 57.4 36-146 60.7 36-146 57.0 30-147 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: 9/5/2023 Page 28 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Batch B308068 Matrix Spike (B308068-MS1) Endrin [2C] 4,4'-DDD 4,4'-DDD [2C] Endosulfan II Endosulfan II [2C] 4,4'-DDT 4,4'-DDT [2C] Endrin aldehyde Endrin aldehyde [2C] Endosulfan sulfate Endosulfan sulfate [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Surrogate: DCB [2C] Matrix Spike (B308068-MS2) Aroclor 1016 Aroclor 1016 [2C] Aroclor 1260 Aroclor 1260 [2C] Surrogate: TCMX Surrogate: TCMX [2C] Matrix Spike Dup (B308068-MSD1) alpha-BHC alpha-BHC [2C] gamma-BHC (Lindane) gamma-BHC (Lindane) [2C] beta-BHC beta-BHC [2C] delta-BHC delta-BHC [2C] Heptachlor Heptachlor [2C] Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2308016-02 0.03 0.006 ug/L 0.03 0.006 ug/L 0.03 0.006 ug/L 0.02 0.006 ug/L 0.03 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.03 0.006 ug/L 0.02 0.006 ug/L 0.03 0.006 ug/L 0.0361 ug/L 0.0478 ug/L 0.00975 ug/L 0.00909 ug/L 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.04545 ND 0.06818 0.06818 0.06818 0.06818 68.7 30-147 61.0 31-141 66.0 31-141 51.3 50-202 59.3 50-202 51.7 25-160 53.7 25-160 53.3 10-154 59.5 10-154 54.0 26-144 58.7 26-144 52.9 29-93 70.1 29-93 14.3 24-98 13.3 24-98 Source: 2308016-02 0.13 0.036 ug/L 0.13 0.036 ug/L 0.21 0.036 ug/L 0.29 0.036 ug/L 0.00771 ug/L 0.00669 ug/L 0.2841 ND 0.2841 ND 0.2841 ND 0.2841 ND 0.06818 0.06818 44.4 50-140 46.3 50-140 72.7 8-140 102 8-140 11.3 29-93 9.82 29-93 Source: 2308016-02 0.01 0.003 ug/L 0.02247 ND 60.0 37-140 3.47 36 0.01 0.003 ug/L 0.02247 ND 66.2 37-140 5.38 36 0.01 0.003 ug/L 0.02247 ND 56.3 32-140 7.04 39 0.02 0.003 ug/L 0.02247 ND 67.6 32-140 5.30 39 0.01 0.003 ug/L 0.02247 ND 57.8 17-147 8.79 44 0.01 0.003 ug/L 0.02247 ND 61.9 17-147 10.4 44 0.02 0.003 ug/L 0.02247 ND 69.8 19-140 30.8 52 0.01 0.003 ug/L 0.02247 ND 59.8 19-140 7.55 52 0.01 0.003 ug/L 0.02247 ND 63.2 34-140 7.04 43 0.01 0.003 ug/L 0.02247 ND 62.0 34-140 5.34 43 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: 9/5/2023 Page 29 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Batch B308068 Matrix Spike Dup (B308068-MSD1) Aldrin Aldrin [2C] Heptachlor epoxide Heptachlor epoxide [2C] Endosulfan I Endosulfan I [2C] 4,4'-DDE 4,4'-DDE [2C] Dieldrin Dieldrin [2C] Endrin Endrin [2C] 4,4'-DDD 4,4'-DDD [2C] Endosulfan II Endosulfan II [2C] 4,4'-DDT 4,4'-DDT [2C] Endrin aldehyde Endrin aldehyde [2C] Endosulfan sulfate Endosulfan sulfate [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Surrogate: DCB [2C] Matrix Spike Dup (B308068-MSD2) Aroclor 1016 Aroclor 1016 [2C] Aroclor 1260 Aroclor 1260 [2C] Surrogate: TCMX Surrogate: TCMX [2C] Surrogate: DCB Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD Source: 2308016-02 0.02 0.003 ug/L 0.02 0.003 ug/L 0.01 0.003 ug/L 0.01 0.003 ug/L 0.02 0.003 ug/L 0.02 0.003 ug/L 0.01 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.03 0.006 ug/L 0.03 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.02 0.006 ug/L 0.0327 ug/L 0.0413 ug/L 0.00777 ug/L 0.00607 ug/L Source: 2308016-02 0.21 0.036 ug/L 0.34 0.036 ug/L 0.09 0.036 ug/L 0.13 0.036 ug/L 0.0476 ug/L 0.0631 ug/L 0.0153 ug/L 0.02247 ND 0.02247 ND 0.02247 ND 0.02247 ND 0.02247 ND 0.02247 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.04494 ND 0.06742 0.06742 0.06742 0.06742 0.2841 ND 0.2841 ND 0.2841 ND 0.2841 ND 0.06818 0.06818 0.06818 73.6 42-140 34.8 80.4 42-140 39.7 52.6 37-142 6.07 56.4 37-142 8.02 69.2 45-153 22.0 68.4 45-153 3.26 32.9 30-145 12.5 38.6 30-145 7.27 54.7 36-146 4.93 53.8 36-146 12.2 63.2 30-147 10.3 56.3 30-147 19.8 50.3 31-141 19.2 53.9 31-141 20.2 54.6 50-202 6.23 45.8 50-202 25.7 51.2 25-160 0.966 34.1 25-160 44.6 43.7 10-154 19.8 46.5 10-154 24.6 46.9 26-144 14.1 34.2 26-144 52.7 48.5 29-93 61.3 29-93 11.5 24-98 9.00 24-98 74.9 50-140 51.0 119 50-140 88.2 33.2 8-140 74.6 44.5 8-140 78.8 69.8 29-93 92.6 29-93 22.5 24-98 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: 9/5/2023 RPD Limit 35 35 26 26 28 28 35 35 49 49 48 48 39 39 53 53 42 42 30 30 38 38 36 36 38 38 Page 30 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Pest/PCBs GC - Quality Control Analyte Batch B308068 Matrix Spike Dup (B308068-MSD2) Surrogate: DCB [2C] Batch S308034 Performance Mix (S308034-PEM1) 4,4'-DDE 4,4'-DDE [2C] Endrin Endrin [2C] 4,4'-DDD 4,4'-DDD [2C] 4,4'-DDT 4,4'-DDT [2C] Endrin aldehyde Endrin aldehyde [2C] Endrin ketone Endrin ketone [2C] Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2308016-02 0.00663 ug/L 0.06818 9.72 24-98 0.91 ug/L 0-200 1.84 ug/L 0-200 103 ug/L 100.0 103 0-200 111 ug/L 100.0 111 0-200 1.35 ug/L 0-200 1.37 ug/L 0-200 110 ug/L 100.0 110 0-200 105 ug/L 100.0 105 0-200 2.18 ug/L 0-200 1.22 ug/L 0-200 2.23 ug/L 0-200 1.84 ug/L 0-200 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: 9/5/2023 Page 31 of 38 Analyte Batch B309003 Blank (B309003-BLK1) Petroleum Hydrocarbons, Tot. LCS (B309003-BS1) Petroleum Hydrocarbons, Tot. LCS Dup (B309003-BSD1) Petroleum Hydrocarbons, Tot. Matrix Spike (B309003-MS1) Petroleum Hydrocarbons, Tot. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 GC - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 5.00 mg/L 35.5 5.00 mg/L 40.00 89 64-132 35.5 5.00 mg/L 40.00 89 64-132 0 20 Source: 2308016-09 59.0 6.41 mg/L 51.28 1.84 111 64-132 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: 9/5/2023 Page 32 of 38 Analyte Batch B308070 Blank (B308070-BLK1) Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Potassium Selenium Silver Sodium Strontium Thallium Tin Titanium Vanadium Zinc UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Metals ICP - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 100 ug/L --- U 20.0 ug/L --- U 8.00 ug/L --- U 100 ug/L --- U 3.00 ug/L --- U 10.0 ug/L --- U 3.00 ug/L --- U 500 ug/L --- U 5.00 ug/L --- U 20.0 ug/L --- U 10.0 ug/L --- U 50.0 ug/L --- U 8.00 ug/L --- U 500 ug/L --- U 5.00 ug/L --- U 10.0 ug/L --- U 20.0 ug/L --- U 500 ug/L --- U 20.0 ug/L --- U 5.00 ug/L --- U 1000 ug/L --- U 10.0 ug/L --- U 20.0 ug/L --- U 10.0 ug/L --- U 10.0 ug/L --- U 20.0 ug/L --- U 20.0 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: 9/5/2023 Page 33 of 38 Analyte Batch B308070 LCS (B308070-BS1) Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Potassium Selenium Silver Sodium Strontium Thallium Tin Titanium Vanadium Zinc UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Metals ICP - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 4830 193 195 197 193 192 194 4670 195 198 191 4870 196 4740 194 193 196 4870 197 195 4680 198 199 194 193 195 200 100 ug/L 20.0 ug/L 8.00 ug/L 100 ug/L 3.00 ug/L 10.0 ug/L 3.00 ug/L 500 ug/L 5.00 ug/L 20.0 ug/L 10.0 ug/L 50.0 ug/L 8.00 ug/L 500 ug/L 5.00 ug/L 10.0 ug/L 20.0 ug/L 500 ug/L 20.0 ug/L 5.00 ug/L 1000 ug/L 10.0 ug/L 20.0 ug/L 10.0 ug/L 10.0 ug/L 20.0 ug/L 20.0 ug/L 5000 200.0 200.0 200.0 200.0 200.0 200.0 5000 200.0 200.0 200.0 5000 200.0 5000 200.0 200.0 200.0 5000 200.0 200.0 5000 200.0 200.0 200.0 200.0 200.0 200.0 96.5 85-115 96.3 85-115 97.3 85-115 98.5 85-115 96.3 85-115 95.8 85-115 96.8 85-115 93.4 85-115 97.4 85-115 99.2 85-115 95.4 85-115 97.4 85-115 98.0 85-115 94.8 85-115 97.2 85-115 96.5 85-115 97.9 85-115 97.4 85-115 98.3 85-115 97.3 85-115 93.6 85-115 98.8 85-115 99.6 85-115 96.8 85-115 96.7 85-115 97.3 85-115 99.8 85-115 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: 9/5/2023 Page 34 of 38 Analyte Batch B308070 LCS Dup (B308070-BSD1) Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Potassium Selenium Silver Sodium Strontium Thallium Tin Titanium Vanadium Zinc UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Metals ICP - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 4810 193 194 197 192 191 194 4650 194 198 191 4860 196 4720 194 192 195 4850 195 194 4670 198 204 194 193 194 198 100 ug/L 20.0 ug/L 8.00 ug/L 100 ug/L 3.00 ug/L 10.0 ug/L 3.00 ug/L 500 ug/L 5.00 ug/L 20.0 ug/L 10.0 ug/L 50.0 ug/L 8.00 ug/L 500 ug/L 5.00 ug/L 10.0 ug/L 20.0 ug/L 500 ug/L 20.0 ug/L 5.00 ug/L 1000 ug/L 10.0 ug/L 20.0 ug/L 10.0 ug/L 10.0 ug/L 20.0 ug/L 20.0 ug/L 5000 200.0 200.0 200.0 200.0 200.0 200.0 5000 200.0 200.0 200.0 5000 200.0 5000 200.0 200.0 200.0 5000 200.0 200.0 5000 200.0 200.0 200.0 200.0 200.0 200.0 96.1 85-115 0.405 20 96.7 85-115 0.342 20 97.2 85-115 0.0771 20 98.6 85-115 0.0710 20 96.2 85-115 0.0520 20 95.7 85-115 0.0679 20 96.8 85-115 0.0620 20 93.1 85-115 0.340 20 97.2 85-115 0.206 20 99.1 85-115 0.111 20 95.4 85-115 0.0891 20 97.1 85-115 0.265 20 98.1 85-115 0.107 20 94.4 85-115 0.431 20 97.0 85-115 0.165 20 96.2 85-115 0.301 20 97.7 85-115 0.220 20 96.9 85-115 0.461 20 97.6 85-115 0.751 20 97.2 85-115 0.0823 20 93.4 85-115 0.182 20 98.9 85-115 0.0556 20 102 85-115 2.53 20 96.9 85-115 0.114 20 96.7 85-115 0.0724 20 97.1 85-115 0.221 20 99.1 85-115 0.779 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: 9/5/2023 Page 35 of 38 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Metals ICP - Quality Control Analyte Batch B308070 Matrix Spike (B308070-MS1) Cadmium Chromium Copper Lead Nickel Silver Zinc Matrix Spike Dup (B308070-MSD1) Cadmium Chromium Copper Lead Nickel Silver Zinc Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2308016-01 192 3.00 ug/L 249 5.00 ug/L 247 10.0 ug/L 193 8.00 ug/L 230 20.0 ug/L 195 5.00 ug/L 332 20.0 ug/L Source: 2308016-01 191 15.0 ug/L 244 25.0 ug/L 236 50.0 ug/L 193 40.0 ug/L 229 100 ug/L 190 25.0 ug/L 328 100 ug/L 200.0 ND 200.0 55.4 200.0 47.3 200.0 ND 200.0 36.0 200.0 ND 200.0 132 96.0 80-120 97.0 80-120 99.9 80-120 96.4 80-120 97.1 80-120 97.5 80-120 100 80-120 200.0 ND 95.5 80-120 0.585 10 200.0 55.4 94.4 80-120 2.16 10 200.0 47.3 94.3 80-120 4.65 10 200.0 ND 96.4 80-120 0.0208 10 200.0 36.0 96.5 80-120 0.501 10 200.0 ND 95.0 80-120 2.67 10 200.0 132 97.9 80-120 1.28 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: 9/5/2023 Page 36 of 38 Analyte Batch B308074 Blank (B308074-BLK1) Sulfate Blank (B308074-BLK2) Sulfate LCS (B308074-BS1) Sulfate LCS Dup (B308074-BSD1) Sulfate Matrix Spike (B308074-MS1) Sulfate Batch B308090 Blank (B308090-BLK1) Cyanide, Total LCS (B308090-BS1) Cyanide, Total LCS Dup (B308090-BSD1) Cyanide, Total Matrix Spike (B308090-MS1) Cyanide, Total UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 1.00 mg/L --- U 1.00 mg/L 13.1 1.00 mg/L 12.50 105 90-110 13.0 1.00 mg/L 12.50 104 90-110 0.8 20 Source: 2308016-01 229 10.0 mg/L 40.00 192 92 90-110 --- U 10.0 ug/L 735 10.0 ug/L 726.0 101 90-110 696 10.0 ug/L 726.0 96 90-110 5 20 Source: 2308016-09 496 10.0 ug/L 500.0 ND 99 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: 9/5/2023 Page 37 of 38 Analyte Batch B308107 Blank (B308107-BLK1) Phosphorus Blank (B308107-BLK2) Phosphorus LCS (B308107-BS1) Phosphorus LCS Dup (B308107-BSD1) Phosphorus Matrix Spike (B308107-MS1) Phosphorus Matrix Spike (B308107-MS2) Phosphorus UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Thorlabs Finishing - 2308016 Project Number: 2308016 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 0.0500 mg/L --- U 0.0500 mg/L 8.95 0.250 mg/L 8.450 106 90-110 8.95 0.250 mg/L 8.450 106 90-110 0 20 Source: 2308016-01 1.30 0.0500 mg/L 1.000 0.349 95 90-110 Source: 2308021-01 1.60 0.0500 mg/L 1.000 0.638 96 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: 9/5/2023 Page 38 of 38 Thorlabs Finishing, Newton, NJ 07860 NPDES Permit No.: NJ0302821 Inspection Dates: August 15-16, 2023 8.0 Photographs Thorlabs Finishing, Newton, NJ 07860 NPDES Permit No.: NJ0302821 Inspection Dates: August 15-16, 2023 Photo #1. Compliance samples were collected from the sampling tap. Photo #2. No calibration stick was observed on the flow meter/recorder. Thorlabs Finishing, Newton, NJ 07860 NPDES Permit No.: NJ0302821 Inspection Dates: August 15-16, 2023 Photo #3. The facility's sample tubing was dirty and/or contain algal growth. Photo #4. Process waste streams from the rinse baths are pumped to the master lift station. Thorlabs Finishing, Newton, NJ 07860 NPDES Permit No.: NJ0302821 Inspection Dates: August 15-16, 2023 Photo #5. Only one (1) of 2 pH Neutralization Tanks is used to treat process wastewater.