Document yBaDkvMyR2YO19zmr0xgk01E

Report Prepared by: Report Reviewed by: Report Approved by: NPDES/ NJPDES Compliance Sampling Inspection Report Pennsville Sewerage Authority WWTP 183 Delaware Drive Pennsville, NJ 08070 NJPDES Permit: NJ0021598 Inspection Dates: July 25-26, 2023 MOLLY Digitally signed by MOLLY HILLENBRAND HILLENBRAND Date: 2023.09.05 13:17:37 -04'00' ________________________________ Molly Hillenbrand, Life Scientist Digitally signed by THUAN THUAN TRAN TRAN Date: 2023.09.05 13:33:27 -04'00' ________________________________ Thuan Tran, Physical Scientist PHILIP COCUZZA Digitally signed by PHILIP COCUZZA Date: 2023.09.05 15:08:47 -04'00' ________________________________ Phil Cocuzza, Chief Monitoring Operations Section Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 1.0 OBJECTIVE On July 25-26, 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) Compliance Sampling Inspection (CSI) at the Pennsville Sewerage Authority Wastewater Treatment Plant (WWTP) in Pennsville New Jersey, 08070. The objective of the CSI was to gather information necessary to determine compliance with the requirements and limitations of their NPDES/ NJPDES permit No. NJ0021598. The facility is currently operating under an expired NJPDES Permit while awaiting permit renewal. 2.0 KEY PARTICIPANTS Listed below are key inspection participants and contact information, grouped by organization. U.S. Environmental Protection Agency Molly Hillenbrand, Lead Inspector Hillenbrand.molly@epa.gov, 732-321-4452 Thuan Tran, Physical Scientist New Jersey Department of Environmental Protection Shanya Pressley, Environmental Scientist 3 Cell: 609-439-9405; Office: 856-614-3655 Shanya.Pressley@dep.nj.gov Environmental & Technical Services Thomas Grant, Project Manager/ Superintendent Cell: 856- 689-1473; Office:609-861-7000 tgant@etsengineersconsulting.com Pennsville Sewerage Authority WWTP Mark Kuhns, Assistant Superintendent Cell: 609-743-6401; Office: 856-678-7570 pvsewer@comcast.net Page 2 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 3.0 FACILITY DESCRIPTION 3.1 General Information Pennsville Sewage Authority Wastewater Treatment Plant (PSA WWTP) is located at 183 Delaware Drive, Pennsville New Jersey, 08070. Constructed in 1959, PSA WWTP consisted of preliminary treatment, a primary clarifier, and disinfection. In the 1980's the facility was upgraded to include two primary clarifiers, six rotating biological contactors, two secondary clarifiers, and a chlorine contact tank. Two trickling filters were added as an upgrade in the 1990's. The latest upgrade to the facility was performed in 2010 with the addition of a third primary clarifier. PSA WWTP has a design treatment capacity of 1.875 million gallons per day (MGD). The sewer connections receive wastewater from residential, commercial, and industrial sources, with a service area spanning from Pennsville Township, Deepwater, and a few residential connections in Carneys Point, adjacent to the northern boundary of Pennsville (Attachment Figure 1). The plant employs a Project Manager/Superintendent, an Assistant Superintendent, and 5 operators. The facility is categorized as Standard Industrial Classification (SIC) 4952 - Sewerage Systems and the North American Industry and Classification System (NAICS) 221320 - Sewage Treatment Facilities. 3.2 Process Information Wastewater enters the headworks through two influent lines. Preliminary treatment is provided through the aerated grit chamber which allows grits to settle out followed by a manual bar screen to remove rags and large matters. Following preliminary treatment, wastewater is distributed into three rectangular primary clarifiers. From the primary clarifiers, the effluent continues to one (1) of two towering trickling filters (TF). Continuing from the TF, the effluent is distributed between two trains of three rotating biological contactors (RBC's). The effluent from the RBC's is conveyed to three rectangular secondary clarifiers. The effluent flows over a rectangular weir where sodium hypochlorite is added before flowing to the chlorine contact tank. Retention time is provided in the chlorine contact tank before the treated effluent flows over the rectangular weir. An ultra-sonic flow sensor monitors the treated effluent discharge. The effluent exiting the pipe freefalls into an effluent receiving basin and is discharged to the Delaware River via Outfall 001A. Sludge from the primary and secondary clarifiers is pumped to the gravity sludge thickener. Supernatant from the gravity sludge thickener is directed to the aerated grit chamber. The thickened sludge is pumped to one of two holding tanks with one tank being used for emergency storage. From the holding tanks the sludge is either transported to the Delaware County Regional Water Quality Control Authority (DELCORA) for incineration, or the Page 3 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 sludge are treated by the hauler and are land applied at Ash Lane Farms. Scum from the primary and secondary clarifiers is collected in a scum pit. The collected scum is transported to the landfill for disposal. Grits from the grit chamber as well as the solids from the manual bar screen are collected disposed of at the local landfill. A flow schematic diagram is denoted in Attachment Figure 2. 3.3 Facility Self-Monitoring Information Permit compliance samples are collected by plant personnel. Plant personnel analyze dissolved oxygen (DO), temperature, pH, and total residual chlorine (TRC) on site. Sample analysis for five-day biological oxygen demand (BOD5), total suspended solids (TSS), total dissolved solids (TDS), ammonia (NH3), nitrate (NO3-), total phosphorous, oil and grease (O&G), and fecal coliforms are contracted to Vineland Environmental Laboratories, located at 782 South Brewster Road, Vineland, New Jersey 08361. Vineland Environmental Laboratories provides sample containers and personnel pick up samples for laboratory analyses. 4.0 EPA SAMPLING/INSPECTION ACTIVITIES 4.1 Sampling Activities An ISCO automatic composite sampler was setup at the effluent (Outfall 001A) monitoring location (Photo 1). The automatic composite sampler was packed with ice to ensure sample preservation and programed to collect 96 sample aliquots during the 24-hour sampling period. The 24-hour composite sample was collected and analyzed for BOD5, TSS, TDS, Total Phosphorous, and Nitrate. On-site grab samples were collected at the free-fall into the effluent receiving basin and analyzed for pH, DO, Temperature and TRC (Photo 2). In addition, an ISCO automatic composite sampler was setup at the influent monitoring location (Photo 3). The automatic composite sampler was packed with ice to ensure sample preservation and programed to collect 96 sample aliquots during the 24-hour sampling period. The 24-hour composite sample was collected and analyzed for BOD5 and TSS. 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. A chain of custody form recorded sampling and handling activity (Attachment Figure 3). Flow data was obtained directly from PSA WWTP instrumentation which was last calibrated on April 3, 2023. Page 4 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 The facility representative declined the EPA offer for split samples. 4.2 Inspection Activities A NPDES CSI was conducted at the Pennsville Sewerage Authority Wastewater Treatment Plant in Pennsville, New Jersey, 08070. The inspectors met with Tom Grant, the Project Manager/Superintendent, Environmental & Technical Services (contractor); Mark Kuhns, Assistant Superintendent with Pennsville Sewerage Authority; and Shanya Pressley, New Jersey Department of Environmental Protection (NJDEP) Southern Bureau of Water and Compliance and Enforcement. Inspector credentials were presented, and contact information was exchanged. Inspectors explained to the facility's representatives that the inspection was to determine if the facility is in compliance with their NJPDES permit, NJ0021598. A physical inspection occurred, assisted by facility staff, to observe and evaluate the wastewater treatment process, sampling and flow monitoring equipment, effluent and influent monitoring locations, and sampling procedures. Observations and concerns were communicated to facility staff throughout the inspection and reiterated during the closing conference. Inspection findings observed through the facilities physical inspection are listed in Section 6.2. 4.3 Deviations and/or Environmental Conditions At the time of the inspection only one of the two trickling filters was in operation. Thunderstorms and heavy rains were also observed during the afternoon of July 25, 2023. Due to safety concerns, the trickling filter operations were observed via a facility camera. 5.0 ANALYTICAL RESULTS Pennsville Sewerage Authority WWTP July 25-26, 2023 Parameter Flow BOD5 BOD5 *** BOD5 % removal *** BOD5 loading *** TSS TSS *** TSS % Removal *** TSS Loading *** Location Eff. Inf. Eff. --- Eff. Inf Eff. --- Eff. Units MGD mg/L mg/L % kg/day mg/L mg/L % kg/day Permit Limit 1.875 Monitor 30 (Monthly Average) 40 (Weekly Average) 87.5 (Monthly Average Minimum) 185 (Monthly Average) 319 (Weekly Average) Monitor 30 (Monthly Average) 45 (Weekly Average) 85 (Monthly Average Minimum) 213 (Monthly Average) Page 5 of 14 EPA Result 1.561 139 4.57 96.7 27.0 134 11.0 92.0 65.1 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 Parameter Nitrogen (Ammonia) Total (as N) *** Nitrogen, Nitrate Total (as N) Solids, Total Dissolved (TDS) Phosphorous, Total as P Oil and Grease Coliform, Fecal General pH Temperature Chlorine Produced Oxidants Dissolved Oxygen (DO) Location Units Eff mg/L Eff mg/L Eff. mg/L Eff. mg/L Eff. mg/L Eff. #/100 ml Eff. SU Eff. C Eff. mg/L Eff. mg/L Permit Limit 319 (Weekly Average) 35 (Monthly Average) Report Report Report 10-15 200 (Monthly Geometric Average) 400 (Weekly Geometric) 6.0-9.0 Report 2.0 (Daily maximum) Report U- The analyte was not detected at or above the Reporting Limit. *** Permit limit is an average; EPA result is for a single sample. EPA Result 6.65 8.55 468 2.76 U 34.0 (Geometric Mean) 7.54 25.5 0.6 1st run: 4.9 2nd run: 5.1 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 sampling, an inspection of the facility operations was conducted as discussed in Section 4.2 above. During this inspection the following observations were noted which may contravene the requirements of the permit or the applicable regulations: 6.2.1 The trickling filter was observed to have vegetative growth around the rotary distributor's central column, expanding to the media. The vegetative growth can potentially lead to ponding on the media. According to 40 CFR 122.41(e): Proper Operation and Maintenance, "The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation is necessary to achieve Page 6 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 compliance with the conditions of the permit.". In addition, N.J.A.C 7:14A-6.12(a) for Operation, Maintenance, and Emergency Conditions, it states "A permittee shall, at all times, maintain in good working order and operate the treatment works and facilities which are installed or used by the permittee to achieve compliance with the terms and conditions of the discharge permit.". 6.2.2 Bubbles and sludge bulking were observed rising to the surface of the chlorine contact chamber. Furthermore, the sludge was observed to overflow the rectangular weir into the discharge pipe. According to 40 CFR 122.41(e): Proper Operation and Maintenance, "The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation is necessary to achieve compliance with the conditions of the permit.". In addition, N.J.A.C 7:14A-6.12(a) for Operation, Maintenance, and Emergency Conditions, it states "A permittee shall, at all times, maintain in good working order and operate the treatment works and facilities which are installed or used by the permittee to achieve compliance with the terms and conditions of the discharge permit.". 6.2.3 The effluent composite sampling silastic tubing was observed to have a buildup of algae (Attachment Photo 1). During the purging process the algae built up in the silastic tubing can become dislodged, potentially biasing the sample result. According to 40 CFR 122.41(e): Proper Operation and Maintenance, "The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also include adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation is necessary to achieve compliance with the conditions of the permit.". In addition, N.J.A.C 7:14A-6.12(a) for Operation, Maintenance, and Emergency Conditions, it states "A permittee shall, at all times, maintain in good working order and operate the treatment works and facilities which are installed or used by the permittee to achieve compliance with the terms and conditions of the discharge permit.". Page 7 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 7.0 Photographs Page 8 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 Photograph 1: EPA automatic composite sampler was setup at the effluent monitoring location Page 9 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 Photograph 2: Grab samples were collected from the free-fall into the effluent receiving basin. Photograph 3: EPA automatic composite sampler was setup at the influent monitoring location. Page 10 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 Photograph 4: Vegetative growth was observed on the trickling filter via the facility cameras. Page 11 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 Photograph 5: Bubbles and sludge bulking was observed in the chlorine contact chamber. Page 12 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 Photograph 6: Algae was observed in the silastic tubing of the composite effluent sampler. Page 13 of 14 Pennsville Sewerage Authority WWTP, Pennsville NJ, 08070 NPDES/ NJPDES Permit No. NJ0021598 Inspection Dates: July 25-26, 2023 8.0 ATTACHMENTS Page 14 of 14 Attachment 1: The service area for Pensville Sewerage Authority WWTP is highlighted in yellow Attachment 2: Pennsville Sewerage Authority Wastewater Treatment Plant's Flow Process Diagram, outlining PSA WWTP's treatment processes Attachment 3: Samples were submitted to the USEPA Laboratory in Edison, New Jersey for analysis on July 25, 2023. Note: Oil and Greese Sample was collected as a Grab sample not a Grab Composite- Molly Hillenbrand Attachment 4: USEPA Analytical Data Package was received on Thursday, August 3, 2023 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory 2890 Woodbridge Avenue Edison , New Jersey 08837 732-906-6886 Phone 732-906-6165 Fax August 03, 2023 Philip Cocuzza Monitoring & Assessment Branch LSASD/MAB Edison, NJ 08837 RE: Pennsville Sewage Authority - 2307008 Enclosed are the results of analyses for samples received by the laboratory on 07/26/2023. 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 2307008 and contact the laboratory. Sincerely, John R. Bourbon Chief, LSASD/LB Project Narrative: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 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. 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: 8/3/2023 Page 1 of 10 Reporting Limit(s): UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 The Laboratory was able to achieve the appropriate limit for each analyte requested. Field ID Outfall 001-Composite Outfall 001-Grab Composite Outfall 001-Grab#1 Outfall 001-Grab#2 Outfall 001-Grab#3 Outfall 001-Grab#4 Outfall 001-Grab#5 Influent SUMMARY REPORT FOR SAMPLES Laboratory ID 2307008-01 2307008-02 2307008-03 2307008-04 2307008-05 2307008-06 2307008-07 2307008-08 Matrix Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Date Sampled 07/26/2023 10:39 07/26/2023 10:57 07/26/2023 10:33 07/26/2023 10:51 07/26/2023 11:10 07/26/2023 11:26 07/26/2023 11:47 07/26/2023 10:15 Date Received 07/26/2023 14:50 07/26/2023 14:50 07/26/2023 14:50 07/26/2023 14:50 07/26/2023 14:50 07/26/2023 14:50 07/26/2023 14:50 07/26/2023 14:50 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: 8/3/2023 Page 2 of 10 Analysis Ammonia [As N] Biochemical Oxygen Demand Coliform, Fecal Nitrate [As N] Oil & Grease Phosphorus Residue, Filterable Residue, Non-Filterable UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 SUMMARY REPORT FOR METHODS Method EPA 350.1 SOP C-80 Rev 2.8 SM 5210B SOP C-21 Rev 2.8 SM9221B,E / SOP B-8 Rev 2.8 EPA 353.2 SOP C-79 Rev 3.7 EPA 1664A SOP C-126 Rev 1.7 EPA 365.1 SOP C-68 Rev 2.8 SM 2540C SOP C-37 Rev 2.8 SM 2540D SOP C-33 Rev 3.8 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: 8/3/2023 Page 3 of 10 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 Analyte Field ID: Outfall 001-Composite Sanitary Ammonia [As N] Biochemical Oxygen Demand Nitrate [As N] Phosphorus Total Dissolved Solids Total Suspended Solids Field ID: Outfall 001-Grab Composite GC Oil & Grease Field ID: Outfall 001-Grab#1 Microbiology, MPN Coliform, Fecal Field ID: Outfall 001-Grab#2 Microbiology, MPN Coliform, Fecal Field ID: Outfall 001-Grab#3 Microbiology, MPN Coliform, Fecal Field ID: Outfall 001-Grab#4 Microbiology, MPN Coliform, Fecal Result Qualifier Reporting Limit Units Batch Sample ID: 2307008-01 Date and Time of Analysis* 5.65 0.100 mg/L B308006 4.57 2.00 mg/L B307092 08/01/2023 09:32 8.55 0.500 mg/L B307103 07/27/2023 10:28 2.76 0.500 mg/L B308004 468 10.0 mg/L B307107 11.0 10.0 mg/L B307106 Sample ID: 2307008-02 --- U J 5.88 mg/L B307105 Sample ID: 2307008-03 12 1.8 MPN/100 B307102 07/27/2023 13:45 mL Sample ID: 2307008-04 45 1.8 MPN/100 B307102 07/27/2023 13:55 mL Sample ID: 2307008-05 17 1.8 MPN/100 B307102 07/27/2023 14:00 mL Sample ID: 2307008-06 110 1.8 MPN/100 B307102 07/27/2023 14:40 mL 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: 8/3/2023 Page 4 of 10 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 Analyte Field ID: Outfall 001-Grab#5 Microbiology, MPN Coliform, Fecal Field ID: Influent Sanitary Biochemical Oxygen Demand Total Suspended Solids Result Qualifier Reporting Limit Units Batch Sample ID: 2307008-07 Date and Time of Analysis* 45 1.8 MPN/100 B307102 07/27/2023 15:00 mL Sample ID: 2307008-08 139 2.00 mg/L B307092 08/01/2023 09:32 134 10.0 mg/L B307106 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: 8/3/2023 Page 5 of 10 Analyte Batch B307105 Blank (B307105-BLK1) Oil & Grease LCS (B307105-BS1) Oil & Grease LCS Dup (B307105-BSD1) Oil & Grease Matrix Spike (B307105-MS1) Oil & Grease Matrix Spike (B307105-MS2) Oil & Grease UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 GC - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 5.00 mg/L 34.7 5.00 mg/L 40.00 86.8 78-114 24.1 5.00 mg/L 40.00 60.2 78-114 36.1 20 Source: 2307010-01 37.8 5.10 mg/L 40.82 ND 92.6 78-114 Source: 2307008-02 41.9 5.95 mg/L 47.62 ND 88.0 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: 8/3/2023 Page 6 of 10 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 Sanitary - Quality Control Analyte Batch B307092 Blank (B307092-BLK1) Biochemical Oxygen Demand LCS (B307092-BS1) Biochemical Oxygen Demand LCS (B307092-BS2) Biochemical Oxygen Demand LCS (B307092-BS3) Biochemical Oxygen Demand Duplicate (B307092-DUP1) Biochemical Oxygen Demand Matrix Spike (B307092-MS1) Biochemical Oxygen Demand Matrix Spike Dup (B307092-MSD1) Biochemical Oxygen Demand Batch B307103 Blank (B307103-BLK1) Nitrate [As N] Blank (B307103-BLK2) Nitrate [As N] Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 2.00 mg/L 161 mg/L 198.0 81.3 84.6-115.4 213 mg/L 198.0 108 84.6-115.4 217 mg/L 198.0 110 84.6-115.4 Source: 2307008-08 160 2.00 mg/L 139 13.8 25 Source: 2307008-08 489 2.00 mg/L 396.0 139 88.3 75-125 Source: 2307008-08 495 2.00 mg/L 396.0 139 89.9 75-125 1.33 200 --- U 0.0500 mg/L --- U 0.0500 mg/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: 8/3/2023 Page 7 of 10 Analyte Batch B307103 LCS (B307103-BS1) Nitrate [As N] LCS Dup (B307103-BSD1) Nitrate [As N] Matrix Spike (B307103-MS1) Nitrate [As N] Matrix Spike (B307103-MS2) Nitrate [As N] Batch B307106 Blank (B307106-BLK1) Residue, Non-Filterable LCS (B307106-BS1) Residue, Non-Filterable LCS Dup (B307106-BSD1) Residue, Non-Filterable Duplicate (B307106-DUP1) Residue, Non-Filterable Batch B307107 Blank (B307107-BLK1) Residue, Filterable UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 15.3 0.500 mg/L 16.50 93 90-110 15.9 0.500 mg/L 16.50 96 90-110 4 20 Source: 2307008-01 9.02 0.500 mg/L 0.2000 8.55 235 90-110 Source: 2307044-04 4.34 0.500 mg/L 0.2000 4.05 145 90-110 --- U 10.0 mg/L 55.0 10.0 mg/L 56.20 97.9 85-115 53.0 10.0 mg/L 56.20 94.3 85-115 3.70 20 Source: 2307008-01 12.0 10.0 mg/L 11.0 8.70 20 --- U 10.0 mg/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: 8/3/2023 Page 8 of 10 Analyte Batch B307107 Blank (B307107-BLK2) Residue, Filterable LCS (B307107-BS1) Residue, Filterable LCS Dup (B307107-BSD1) Residue, Filterable Duplicate (B307107-DUP1) Residue, Filterable Batch B308004 Blank (B308004-BLK1) Phosphorus Blank (B308004-BLK2) Phosphorus LCS (B308004-BS1) Phosphorus LCS Dup (B308004-BSD1) Phosphorus Matrix Spike (B308004-MS1) Phosphorus UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 10.0 mg/L 495 10.0 mg/L 480.0 103 85-115 501 10.0 mg/L 480.0 104 85-115 1.20 20 Source: 2307008-01 454 10.0 mg/L 468 3.04 20 --- U 0.0500 mg/L --- U 0.0500 mg/L 8.42 0.250 mg/L 8.450 100 90-110 8.51 0.250 mg/L 8.450 101 90-110 1 20 Source: 2307008-01 3.39 0.500 mg/L 1.000 2.76 63 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: 8/3/2023 Page 9 of 10 Analyte Batch B308004 Matrix Spike (B308004-MS2) Phosphorus Batch B308006 Blank (B308006-BLK1) Ammonia [As N] Blank (B308006-BLK2) Ammonia [As N] LCS (B308006-BS1) Ammonia [As N] LCS Dup (B308006-BSD1) Ammonia [As N] Matrix Spike (B308006-MS1) Ammonia [As N] Matrix Spike (B308006-MS2) Ammonia [As N] UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Pennsville Sewage Authority - 2307008 Project Number: 2307008 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit Source: 2307044-05 2.61 0.500 mg/L 1.000 1.83 78 90-110 --- U 0.100 mg/L --- U 0.100 mg/L 7.99 0.100 mg/L 8.340 96 90-110 8.09 0.100 mg/L 8.340 97 90-110 1 20 Source: 2307008-01 11.1 1.00 mg/L 5.000 5.65 109 90-110 Source: 2307044-04 9.68 0.100 mg/L 5.000 5.49 84 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: 8/3/2023 Page 10 of 10