Document 659Z3Y86gZYe1EzG0kOXdDoBE

Report Prepared by: Report Approved by: NPDES Compliance Sampling Inspection Report The Village of Woodridge WWTP 36 Greenfield Road Woodridge, New York 12789 NPDES Permit: NY 0272817 Inspection Dates: March 14-15, 2023 THUAN TRAN Digitally signed by THUAN TRAN _________________D_ate_: _20_23_.0_5._09_0_9:0_4_:01_-_04_'0_0' Thuan Tran, Physical Scientist Cocuzza, Phil Digitally signed by Cocuzza, Phil _________________D_ate_: _20_23_.0_5._09_0_9:3_1_:47_-_04_'0_0' Phil Cocuzza, Chief Monitoring Operations Section Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 1.0 OBJECTIVE Insp. Dates: March 14-15, 2023 On March 14 -15, 2023, the United States Environmental Protection Agency (USEPA) conducted a National Pollutant Discharge Elimination System (NPDES) Compliance Sampling Inspection (CSI) at the Village of Woodridge Wastewater Treatment Plant (WWTP). The objective of the NPDES CSI was to gather information necessary to determine if the facility is in compliance with the requirements and limitations of their NPDES Permit; NY0272817. The facility is operating under the expired NPDES Permit while awaiting the Permit Renewal Application process. 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 Molly Hillenbrand, Environmental Scientist Village of Woodridge Wastewater Treatment Plant Travis Steimle, Director of Operations 845-888-5755, email: travis.steimle@h2oinnovation.com Stephen Valastro, Project Manager Benjamin Barx, Operator in Training John Parisi, Project Manager 3.0 FACILITY DESCRIPTION 3.1 General Information The Village of Woodridge Wastewater Treatment Plant (WWTP) is located on 36 Greenfield Road, Woodridge, New York (NY) and has a designed treatment capacity of 0.8 million gallons per day (MGD) of wastewater. The current WWTP consists of preliminary, secondary, and tertiary treatment, post equalization, disinfection, post aeration, sludge digestion, and dewatering. Before the 2009 upgrade, the facility used to be a pump station with the original lagoon wastewater treatment plant located on River Road. In 2021, the Village of Woodridge contracted with H2O Innovative to operate and maintain the wastewater treatment plant. The facility receives sanitary wastewater from the Village of Woodridge and part of the Town of Fallsburg as well as pretreated process wastewater from Newburg Egg Processing. The Village of Woodridge WWTP is categorized under Standard Industrial Classification (SIC) 4952 - Sewerage Systems and the North American Industry Classification System (NAICS) 221320 - Sewage Treatment Facilities. Page 2 of 8 Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 3.2 Process Information Insp. Dates: March 14-15, 2023 Wastewater flows through the village sewer collection system and converges at the plant through one influent line. The facility also receives some inflow and infiltration (I/I) during wet weather. As wastewater flows to the plant, it is intercepted by the coarse mechanical bar screen that removes rags and large matters. With the rags and large matters removed, the waste stream continues to the vortex grit system which allows heavy solids to drop out. From the grit system, the wastewater continues along the influent channel where sodium hydroxide for pH control and sodium aluminate for phosphorus removal are added. Mixing is provided in-line as the wastewater and added chemicals flow to the fine mechanical screen. As the waste stream passes the fine mechanical screen, the flow is monitored by a Parshall Flume with an ultrasonic flow sensor. Once the flow has been recorded, the wastewater continues to the pre-aeration chamber before it is directed into one (1) of 2 Sequencing Batch Reactor (SBR) basins. The SBRs operating stages are anoxic phase, aeration phase, settling phase, and decanting phase. Decant from the SBRs free-falls into the post-equalization chamber then continues to the cloth disc filtration systems. The filtrate continues to the ultraviolet (UV) disinfection systems which operate seasonally. The effluent is distributed between two (2) post-aeration basins. The overflow from the post-aeration basins combines in the effluent receiving chamber before discharging to Silver Lake via Outfall 001. Grits removed from the grit removal system and solids from the fine mechanical screen are hauled out by a sludge hauler. Rags and large matters removed from the coarse mechanical bar screen are disposed of as regular trash. Filtrate from the coarse mechanical bar screen, fine mechanical screen and the grit removal chamber returns to the plant for treatment. Settling solids from the SBRs process are removed as Waste Activated Sludge (WAS). WAS is pumped to the aerobic sludge digestion tank to begin the digestion process. As the digested sludge is pumped to the sludge centrifuge, a polymer is injected in-line to increase solid content. The biosolids is collected in a dump truck and disposed of by Lang EnviroVentures. Filtrate from the sludge centrifuge and backwash from the cloth disc filtration systems are directed to the pre-aeration chamber ahead of the Sequencing Batch Reactor basins. 3.3 Facility Self-Monitoring Information Permit compliance samples are performed and collected by the plant personnel. Samples such as pH, temperature, Dissolved Oxygen (DO) and settleable solids (SS) are analyzed onsite. Alkalinity, phosphorus, and ammonia are also analyzed on-site but for process control. Samples for BOD5, TSS, phosphorus, ammonia, and fecal coliforms are contracted to Sullivan County Laboratories, which is located on 86 Queen Mountain Road, Ferndale, NY 12734. Sample containers are prepared by the contract laboratory and are picked up by a plant personnel. Composite sample is distributed by the plant personnel into the provided sample containers, then chilled in the designated sample refrigerator. The samples are transported to the laboratory in a sample cooler with the chain of custody. Page 3 of 8 Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 4.0 EPA SAMPLING/INSPECTION ACTIVITIES 4.1 Sampling Activities An ISCO automatic composite sampler was programmed to take 24 sample aliquots during the 6-hour sampling event from the effluent monitoring location. The 6-hour composite sample was collected and analyzed for 5-Day Biochemical Oxygen Demand (BOD5), Total Suspended Solids (TSS), Ammonia (NH3), and Phosphorus. On-site grab samples were collected and analyzed for pH, Temperature, Settleable Solids (SS), Dissolved Oxygen (DO), and Total Residual Chlorine (TRC). In addition, an ISCO automatic composite sampler was programmed to take 24 sample aliquots during the 6-hour sampling event from the influent monitoring location. The 6-hour composite sample was collected and analyzed for BOD5 and TSS. Furthermore, at the request of the program office, an ISCO automatic composite sampler was programmed to take a 24-hour composite sample at the treatment plant influent monitoring location for parameters on the Newburg Egg Processing Industrial User (IU) Permit (Permit No.: 001) for potential pass-through interference. The 24-hour composite sample was collected and analyzed for BOD5, TSS, TKN and Phosphrous. Oil & Grease (O&G) was not collected as a composite sample as stated in the IU Permit. With the concentration limit for O&G based on a composite sample and due to its' nature, multiple grab samples were collected at various time intervals during the 24-hour sampling event. The analytical results were averaged as described in EPA Method 1664 Section 8.3. Also, an on-site sample was collected and analyzed for hydrogen ion (pH). 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. Flow monitoring data was provided by the Village of Woodridge WWTP instrumentation which was calibrated on October 20, 2022. Split samples were collected and given to the facility representative. 4.2 Inspection Activities An NPDES CSI at the Village of Woodridge WWTP was conducted on March 14-15, 2023. Inspector's credential was presented, and business card was provided during the opening conference. It was explained that the purpose of the inspection with supporting on-site activities was to determine if the facility is in compliance. Page 4 of 8 Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 The supporting on-site activities consist of collecting samples at the influent and effluent monitoring locations, observing and evaluating the monitoring locations, observing and evaluating the facility's sampling protocol, observing and evaluating the wastewater treatment process, observing and evaluating the treated effluent and discharged outfall, review and evaluate the analytical procedures by the facility, and interviewing the facility's representatives. The facility representatives were unavailable the second day of the inspection. A courier for H2O Innovative was present to provide access to the influent monitoring location and to receive the split samples. Any concerns discovered from the inspection activities were communicated to the facility representatives at the end of the first day, so they understand their responsibilities to comply with the NPDES Permit as well as state and federal regulations. 4.3 Deviations and/or Environmental Conditions ISCO automatic composite samplers were assembled and programmed to collect 6-hour composite samples from the influent and effluent monitoring locations during the manned operating hours. Due to a programmatic error for both ISCO automatic composite samplers, the samplers did not collect any sample aliquots. As a result, the automatic composite samplers were reprogrammed to start collecting sample aliquots. 5.0 ANALYTICAL RESULTS Village of Woodridge WWTP - Outfall 001 Inspection Dates: March 14-15, 2023 Parameters Units NPDES Permit Limitations EPA Results Flow* MGD 0.80 0.53 BOD5 mg/L 5.0 (daily maximum) 6.64 % BOD5 Removal % >/= 85 96 BOD5 Mass Loading* lbs./day 33 (daily maximum) 29.4 TSS mg/L 10 (daily maximum) U % TSS Removal* % >/= 85 91 TSS Mass Loading* lbs./day 67 (daily maximum) 44.2 Settleable Solids ml/L 0.1 Trace pH SU 6.5 - 8.5 6.54 Ammonia mg/L 2.2 U L Phosphorus mg/L 0.5 0.08 Dissolved Oxygen mg/L 7.0 (Minimum) 1st Run: 10 2nd Run: 10 Temperature F 70 (Type I) 44.6 (7C) Notes: U- The analyte was not detected at or above the Reporting Limit. L- The identification of the analyte is acceptable; the reported value may be biased low. Flow*- The total flow provided by the facility is b/t 3PM on 3/14 to 7AM on 3/15 of 0.53 MGD. Mass Loading for BOD5 & TSS*: calculation is not representative of continuous discharge. TSS Percent Removal*: The Reporting Limit of 10 mg/L is used in the calculation. Page 5 of 8 Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 Newburg Egg Processing Industrial User Permit Sampling Dates: March 14-15, 2023 Parameters Units IU Permit Limitations BOD5 mg/L 380 (daily maximum) TSS mg/L 210 (daily maximum) TKN mg/L 45 (daily maximum) UOD* mg/L 775 (daily maximum) pH SU 6.0 - 9.0 Phosphorus mg/L Monitor Oil & Grease* mg/L 50 (daily maximum) Notes: UOD* = (1.5 x BOD5) + (4.5 x TKN) Oil & Grease*: The result is an average. EPA Results 170 109 10.2 301 7.2 0.895 6.2 6.0 FINDINGS 6.1 Sampling Result Findings The EPA analytical results obtained during this inspection show the following parameter(s) as being outside of the acceptable limits: 6.1.1 According to the NPDES Permit, the daily maximum effluent limitation for the 5-day Biochemical Oxygen Demand (BOD5) is 5.0 milligrams per liter (mg/L). The analytical result for BOD5 was determined to be 6.64 mg/L. 6.2 Inspection Findings In addition to the analytical data, an inspection of the facility operations was conducted as discussed in Section 4.2 above. During the inspection, the following observations were noted which may contravene the requirements of the permit or the applicable regulations: 6.2.1 According to the NPDES Permit, mass loading calculation for 5-day Biochemical Oxygen Demand (BOD5) and Total Suspended Solids (TSS) is based on pounds per day (lbs./d). Also, the NYSDEC DMR Manual for Completing the Discharge Monitoring Report for State Pollution Discharge Elimination System (SPDES) - 2002, daily discharge is defined as, "the discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling. For pollutants with limitations expressed in units of mass loading, the `daily discharge' is calculated as the total mass loading of the pollutant discharged over the day." BOD5 and TSS are not collected during a calendar day or any 24-hour period. As a result, mass loading calculation for these parameters is not indicative of the treatment plant that receives, treats and discharges continuously for 24 hours. 6.2.2 For the Settleable Solids (SS) test procedure, the Imhoff cone is filled to the 1Liter mark. The sample is allowed to settle for one (1) hour before reading the result. According to Section 3- Procedure for Settleable Solids (SM-2540 F) in Standard Methods for the Determination of Water and Wastewater; 22nd Edition-2011, it states, Page 6 of 8 Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 "Fill an Imhoff cone to the 1-L mark with a well-mixed sample. Settle for 45 min, gently agitate sample near the sides of the cone with a rod or by spinning, settle 15 min longer, and record volume of settleable solids in the cone as milliliters per liter." 6.2.3 The portable HACH HQ 40d Multi meter is used to determine pH, Temperature & Dissolved Oxygen (DO) for permit compliance. Expired pH buffer solutions are used to calibrate the meter. The observed expiration date for pH buffer 10 solution was February 2023. The observed expiration date for pH buffer 7 solution was December 2022. The observed expiration date for pH buffer 4 solution was February 2023. According to 40 CFR Part 122.41 (e) Proper Operation and Maintenance under Subpart C - Permit Condition, it states, "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. In addition, 40 CFR Part 136.7 Quality Assurance and Quality Control states, "The permittee/laboratory shall use suitable QA/QC procedures when conducting compliance analyses with any Part 136 chemical method or any alternative method specified by the permitting authority." Furthermore, Title 6 of NYCRR Part 750-2.5(5) states, "For instrumentation that is not used by certified laboratory, but which is used to measure discharges to the environment as specified in the SPDES permit, the permittee shall periodically calibrate and perform maintenance procedures to ensure accuracy of the measurements. Verification of maintenance shall be logged into the record book(s) of the facility." 6.2.4 The pH calibration for the portable meter starts 1st with the 7-buffer, followed by the 4-buffer, and then 3rd with the 10-buffer. According to Section 4 - Procedure for pH Value (SM 4500-H+ B. Electrometric Method) in Standard Methods for the Determination of Water and Wastewater; 22nd Edition-2011, it states, "...place in initial buffer solution, and set the isopotential point (4500-H+ .B.2a). Select a second buffer within 2 pH units of the sample pH and bring sample and buffer to same temperature, which may be the room temperature, a fixed temperature such as 25C, or the temperature of a fresh sample. Remove electrodes from the first buffer, rinse thoroughly with distilled water, blot dry, and immerse in second buffer........... Remove electrodes from second buffer, rinse thoroughly with distilled water and dry electrodes as indicated above. Immerse in a third buffer below pH 10, approximately 3 pH units different from the second; the reading should be within 0.1 unit for the pH of the third buffer." 6.2.5 The meter/temperature probe was observed not having a correction factor sticker/tag. The meter should be calibrated against a certified NIST (National Institute for Standards and Technology) thermometer. A correction factor tag/sticker with the necessary information should accompany the meter to ensure accurate temperature readings are recorded. According to 40 CFR Part 122.41 (e) Proper Operation and Maintenance under Subpart C - Permit Condition, it states, "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 permitted to Page 7 of 8 Woodridge (V) WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. In addition, 40 CFR Part 136.7 Quality Assurance and Quality Control states, "The permittee/laboratory shall use suitable QA/QC procedures when conducting compliance analyses with any Part 136 chemical method or any alternative method specified by the permitting authority." Furthermore, Title 6 of NYCRR Part 750-2.5(5) states, "For instrumentation that is not used by certified laboratory, but which is used to measure discharges to the environment as specified in the SPDES permit, the permittee shall periodically calibrate and perform maintenance procedures to ensure accuracy of the measurements. Verification of maintenance shall be logged into the record book(s) of the facility." 7.0 ATTACHMENTS Attachment #1. USEPA Chain of Custody for Samples was submitted to the USEPA Lab. Attachment #2. USEPA Analytical Data Package was received on 04/04/2023. 8.0 PHOTOGRAPHS Photo #1. An automatic composite sampler was set-up at the effluent monitoring location. Photo #2. Automatic composite samplers were set-up at the influent monitoring location. Page 8 of 8 Woodridge WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 7.0 Attachments Attachment #1. USEPA Chain of Custody for Samples was submitted to the USEPA Laboratory on Wednesday, 3/15/2023. Attachment #2. USEPA Analytical Data Package was received on Tuesday, 4/04/2023. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory 2890 Woodbridge Avenue Edison , New Jersey 08837 732-906-6886 Phone 732-906-6165 Fax April 04, 2023 Philip Cocuzza Monitoring & Assessment Branch LSASD/MAB Edison, NJ 08837 RE: Village of Woodridge WWTP - 2303014 Enclosed are the results of analyses for samples received by the laboratory on 03/15/2023. 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 2303014 and contact the laboratory. Sincerely, John R. Bourbon Chief, LSASD/LB Project Narrative: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 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: 4/4/2023 Page 1 of 8 Reporting Limit(s): UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 The Laboratory was able to achieve the appropriate limit for each analyte requested. SUMMARY REPORT FOR SAMPLES Field ID Laboratory ID Outfall 001-6Hr Comp. 2303014-01 Influent-6Hr Comp. 2303014-02 Influent (Newburg Egg IU)-24Hr Comp. 2303014-08 Influent (Newburg Egg IU) Grab#1 2303014-09 Influent (Newburg Egg IU) Grab#2 2303014-10 Influent (Newburg Egg IU) Grab#3 2303014-11 Matrix Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Date Sampled 03/14/2023 21:00 03/14/2023 21:00 03/15/2023 09:20 03/14/2023 11:24 03/14/2023 15:00 03/15/2023 09:00 Date Received 03/15/2023 12:00 03/15/2023 12:00 03/15/2023 12:00 03/15/2023 12:00 03/15/2023 12:00 03/15/2023 12:00 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: 4/4/2023 Page 2 of 8 Analysis Ammonia [As N] Biochemical Oxygen Demand Nitrogen, Total Kjeldahl Oil & Grease Phosphorus Residue, Non-Filterable UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 SUMMARY REPORT FOR METHODS Method EPA 350.1 SOP C-80 Rev 2.8 SM 5210B SOP C-21 Rev 2.8 EPA 351.2 SOP C-40 Rev2.8 EPA 1664A SOP C-126 Rev 1.7 EPA 365.1 SOP C-68 Rev 2.8 SM 2540D SOP C-33 Rev 3.8 Certification NELAP NELAP NELAP NELAP NELAP NELAP Matrix 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: 4/4/2023 Page 3 of 8 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 Analyte Field ID: Outfall 001-6Hr Comp. Sanitary Ammonia [As N] Biochemical Oxygen Demand Phosphorus Total Suspended Solids Field ID: Influent-6Hr Comp. Sanitary Biochemical Oxygen Demand Total Suspended Solids Field ID: Influent (Newburg Egg IU)-24Hr Comp. Sanitary Biochemical Oxygen Demand Nitrogen, Total Kjeldahl Phosphorus Total Suspended Solids Field ID: Influent (Newburg Egg IU) Grab#1 GC - Sanitary Oil & Grease Field ID: Influent (Newburg Egg IU) Grab#2 GC - Sanitary Oil & Grease Field ID: Influent (Newburg Egg IU) Grab#3 GC - Sanitary Oil & Grease Result Qualifier Reporting Limit Units Batch Sample ID: 2303014-01 Date and Time of Analysis* --- U L 0.100 mg/L B303062 6.64 2.00 mg/L B303045 03/20/2023 10:39 0.0806 0.0500 mg/L B303055 --- U 10.0 mg/L B303054 Sample ID: 2303014-02 215 2.00 mg/L B303045 03/20/2023 10:39 54.7 10.0 mg/L B303054 Sample ID: 2303014-08 170 10.2 0.895 109 --- 18.6 --- 2.00 0.500 0.0500 10.0 mg/L mg/L mg/L mg/L B303045 B303067 B303055 B303054 03/20/2023 10:39 Sample ID: 2303014-09 U 6.30 mg/L B303080 Sample ID: 2303014-10 6.00 mg/L B303080 Sample ID: 2303014-11 U 6.30 mg/L B303080 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: 4/4/2023 Page 4 of 8 Analyte Batch B303080 Blank (B303080-BLK1) Oil & Grease LCS (B303080-BS1) Oil & Grease LCS Dup (B303080-BSD1) Oil & Grease Matrix Spike (B303080-MS1) Oil & Grease Matrix Spike (B303080-MS2) Oil & Grease UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 GC - Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 5.00 mg/L 35.8 5.00 mg/L 40.00 90 78-114 37.5 5.00 mg/L 40.00 94 78-114 5 20 Source: 2303018-01 48.1 5.00 mg/L 40.00 1.80 116 78-114 Source: 2303014-09 49.2 5.00 mg/L 40.00 5.00 110 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: 4/4/2023 Page 5 of 8 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 Sanitary - Quality Control Analyte Batch B303045 Blank (B303045-BLK1) Biochemical Oxygen Demand LCS (B303045-BS1) Biochemical Oxygen Demand LCS (B303045-BS2) Biochemical Oxygen Demand LCS (B303045-BS3) Biochemical Oxygen Demand Duplicate (B303045-DUP1) Biochemical Oxygen Demand Matrix Spike (B303045-MS1) Biochemical Oxygen Demand Matrix Spike Dup (B303045-MSD1) Biochemical Oxygen Demand Batch B303054 Blank (B303054-BLK1) Residue, Non-Filterable LCS (B303054-BS1) Residue, Non-Filterable Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit --- U 2.00 mg/L 186 mg/L 198.0 94.2 84.6-115.4 176 mg/L 198.0 88.6 84.6-115.4 170 mg/L 198.0 86.1 84.6-115.4 Source: 2303014-02 184 2.00 mg/L 215 15.6 25 Source: 2303014-02 686 2.00 mg/L 396.0 215 119 75-125 Source: 2303014-02 662 2.00 mg/L 396.0 215 113 75-125 3.41 200 --- U 10.0 mg/L 54.0 10.0 mg/L 55.10 98.0 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: 4/4/2023 Page 6 of 8 Analyte Batch B303054 LCS Dup (B303054-BSD1) Residue, Non-Filterable Duplicate (B303054-DUP1) Residue, Non-Filterable Batch B303055 LCS (B303055-BS1) Phosphorus LCS Dup (B303055-BSD1) Phosphorus Matrix Spike (B303055-MS1) Phosphorus Matrix Spike (B303055-MS2) Phosphorus Batch B303062 Blank (B303062-BLK1) Ammonia [As N] Blank (B303062-BLK2) Ammonia [As N] UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 55.0 10.0 mg/L 55.10 99.8 85-115 1.83 20 Source: 2303018-04 18.0 10.0 mg/L 17.0 5.71 20 8.50 0.250 mg/L 8.450 101 90-110 8.57 0.250 mg/L 8.450 101 90-110 0.8 20 Source: 2303014-01 1.13 0.0500 mg/L 1.000 0.0806 105 90-110 Source: 2303018-04 1.50 0.0500 mg/L 1.000 0.521 98 90-110 --- U 0.100 mg/L --- U 0.100 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: 4/4/2023 Page 7 of 8 Analyte Batch B303062 LCS (B303062-BS1) Ammonia [As N] LCS Dup (B303062-BSD1) Ammonia [As N] Matrix Spike (B303062-MS1) Ammonia [As N] Batch B303067 Blank (B303067-BLK1) Nitrogen, Total Kjeldahl Blank (B303067-BLK2) Nitrogen, Total Kjeldahl LCS (B303067-BS1) Nitrogen, Total Kjeldahl LCS Dup (B303067-BSD1) Nitrogen, Total Kjeldahl Matrix Spike (B303067-MS1) Nitrogen, Total Kjeldahl Matrix Spike (B303067-MS2) Nitrogen, Total Kjeldahl UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory Final Report Project: Village of Woodridge WWTP - 2303014 Project Number: 2303014 Sanitary - Quality Control Result Reporting Limit Units Spike Source %REC Level Result %REC Limits RPD RPD Limit 8.07 1.00 mg/L 8.340 97 90-110 8.05 1.00 mg/L 8.340 97 90-110 0.2 20 Source: 2303014-01 4.34 0.100 mg/L 5.000 ND 87 90-110 --- U 0.100 mg/L --- U 0.100 mg/L 13.7 0.200 mg/L 12.40 110 90-110 13.4 0.200 mg/L 12.40 108 90-110 2 20 Source: 2303014-08 14.7 0.500 mg/L 4.000 10.2 112 90-110 Source: 2303018-04 33.6 1.00 mg/L 4.000 28.8 120 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: 4/4/2023 Page 8 of 8 Woodridge WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 8.0 Photographs Woodridge WWTP, Woodridge, NY 12789 NPDES Permit: NY0272817 Insp. Dates: March 14-15, 2023 Photo #1. 6-Hour & 24-Hour composite samples were collected from the influent sample point. Photo #2. 6-Hour composite sample was collected from the effluent monitoring location.