Document X56Xv7kx2LOO9KR4eOg6naQx
Report Prepared by: Report Approved by:
NPDES Compliance Sampling Inspection Report
Rockland County Sewer District #1 WWTP 4 Route 340 NPDES Permit #: NY 003 1895 Inspection Dates: April 6-7, 2021
________________________________ Thuan Tran; Physical Scientist Date: ___Monday, May 17, 2021___
________________________________ Phil Cocuzza, Chief Monitoring Operations Section Date: ________________
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
1.0 OBJECTIVE
On April 6 - 7, 2021, the United States Environmental Protection Agency (USEPA) conducted a National Pollutant Discharge Elimination System (NPDES) Compliance Sampling Inspection (CSI) at the Rockland County Sewer District (RCSD) #1 Wastewater Treatment Plant (WWTP) in Orangeburg, New York. The objective of the CSI was to gather information necessary to determine compliance with the requirements and limitations of NPDES Permit #: NY0031895.
2.0 KEY PARTICIPANTS
Listed below are key inspection participants and contact information, grouped by organization.
U.S. Environmental Protection Agency Thuan Tran; Physical Scientist, Lead Inspector Tran.thuan@epa.gov Kathleen Foley, Physical Scientist
Rockland County Sewer District #1 WWTP Richard Hagen, Chief Plant Operator hagenr@co.rockland.ny.us Linda Hoffman, Laboratory Director
3.0 FACILITY DESCRIPTION
3.1 General Information
Rockland County Sewer District #1 WWTP is located at 4 Route 340 and began operating in 1968 as a secondary treatment plant with a designed capacity of 10 million gallons per day (MGD). The facility serves the Towns of Ramapo and Clarkstown, and part of the Town of Orangetown and is categorized as Standard Industrial Classification (SIC) 4952. The facility has since been expanded and upgraded to provide a designed capacity of 29 MGD and treats approximately 88.5 % of domestic wastewater and 11.5% of commercial and industrial combined wastewater. RCSD #1 WWTP employs 24 personnel and operates 24 hours per day, 7 days per week, 365 days per year. The facility operates three 8-hour shifts; 7am - 3:30pm, 3pm - 11:30pm, and 11:00pm - 7:30am.
3.2 Process Information
Domestic, commercial, and industrial wastewater is conveyed through the county owned sewer collection system. The wastewater is gravity feed and/or pumped through 28 hydraulic pump stations to the wastewater treatment plant. Power is supplied by Orange and Rockland Electric to the pump stations and the treatment facility. Diesel generators provide back-up during power outages.
Page 2 of 8
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
Through the sewer collection system, the wastewater converges into the junction box from two incoming lines just outside the treatment facility fence-line. The receiving wastewater is preliminary treated inside the facility by three mechanical bar screens. Large matters are removed from the waste stream to prevent damaging downstream treatment units. As the wastewater continues through the mechanical bar screens, it amasses in the influent wet well where hydraulic pumps pull the wastewater to the aerated grit chambers. In the aerated grit chambers, heavy solids settled to the bottom, while the waste stream splits between two (2) parallel treatment trains; A-Train and B-Train (larger of the two trains). Within the A-Train, the influent splits between four (4) primary rectangular settling tanks. Then, the primary settling tank effluent continues to the five (5) sequential Rotating Biological Contacts (RBCs) trains with 5 RBCs tanks per train. The effluent from the RBCs is conveyed into the 4 secondary rectangular settling tanks for further phase separation. For the B-Train, the wastewater continues into the six (6) primary rectangular settling tanks. Then, the effluent continues into the ten (10) sequential RBCs trains. The effluent from the RBCs flows into the 6 secondary rectangular settling tanks. Effluent from the A-Train and B-Train is directed into the distribution box before splitting between the 2 chlorine contact chambers. Sodium hypochlorite is injected at the head of the chambers for disinfection. The flows from the chlorine contact chambers are monitored using rectangular weirs with ultrasonic flow sensors. The effluent free-falls from the rectangular weirs into the mixing tank before flowing into the discharge pipe. Downstream of the discharge pipe, sodium bisulfide is injected in-line for dechlorination. The treated effluent continues in the pipe for approximately 3.5 miles before the Town of Orangetown WWTP effluent mixes, then discharges via Outfall 001 into the Hudson River.
Sludge handling begins with skimmed scum from the secondary settling tanks getting pumped into the primary settling tanks. The settled sludge from the primary and secondary settling tanks is pumped into the gravity sludge thickener. The thickened sludge from the gravity sludge thickener is pumped into the primary anaerobic sludge digester followed by the secondary anaerobic sludge digester. The anaerobic sludge digestion process is between 25-30 days with the temperature being maintained between 95-97Fahrenheit. The sludge slurry in the secondary anaerobic sludge digester is pumped into the sludge centrifuge as a polymer is injected in-line. The biosolids from the centrifuge is between 24-25% solids. The biosolids is hauled to the Rockland County Solid Waste Management Authority for further treatment.
Supernatant from the gravity sludge thickener, centrate from the centrifuge, and water usage in the facility flow into the influent wet well. Rags and large objects removed from the mechanical bar screens, grits removed from the aerated grit chambers, and scum removed from the primary settling tanks are disposed of by outside contractors. The filtrates from the mechanical bar screens and the aerated grit chambers flow back into their respective treatment units.
Page 3 of 8
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
3.3 Facility Self-Monitoring Information
Rockland County Sewer District #1 WWTP performs 24-hour composite, grab, and on-site sampling for permit compliance. Collected samples are analyzed in-house, as well as, contracted out. Parameters analyzed in-house are 5-Day Carbonaceous Biochemical Oxygen Demand (cBOD5), Total Suspended Solids (TSS), pH, Temperature, Total Residual Chlorine (TRC), Settleable Solids (SS) and Fecal Coliform. Parameters analyzed by Aqua Pro-Tech. Laboratories in Orangeburg, New York are Metals (Copper, Lead & Zinc), Ammonia-N2 (NH3), Nitrate (NO3), Nitrite (NO2), Phosphorus, Total Kjeldahl Nitrogen (TKN), Total Phenolics and Low-Level Mercury. Coastal Bio-Analysts, Inc., performs Whole Effluent Toxicity (WET) testing.
The sample containers for in-house analysis are provided by the facility. The contract laboratory provides unpreserved sample containers with a storage cooler and the chain of custody. All sample containers are filled and preserved by the facility laboratory. The contracted sample containers are packed inside the cooler with the completed chain of custody and picked up by the contract laboratory.
4.0 EPA SAMPLING/INSPECTION ACTIVITIES
4.1 Sampling Activities
ISCO automatic composite samplers were programmed to take 96 sample aliquots during the 24-hour sampling event from Outfall 001 monitoring location. The 24-hour composite sample was collected and analyzed for 5-Day Carbonaceous Biochemical Oxygen Demand (cBOD5), Total Suspended Solids (TSS), Phosphorus, Ammonia-N2 (NH3), Nitrate (NO3), Nitrite (NO2), Total Kjeldahl Nitrogen (TKN), and Metals (Copper, Lead & Zinc).
Grab samples were collected and analyzed for Low-Level Mercury and Total Phenolics.
On-site grab samples from the influent and Outfall 001 monitoring locations were collected and analyzed for pH, Temperature, Total Residual Chlorine (TRC), and Settleable Solids (SS).
In addition, an ISCO automatic composite sampler was programmed to take 96 sample aliquots during the 24-hour sampling event from the influent monitoring location. The composite sample was analyzed for cBOD5, TSS, NH3, TKN, NO3, NO2, and Phosphorus.
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, except for cBOD5, NO3 and NO2. These analytes were packed inside a cooler with wet ice and shipped
Page 4 of 8
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
to EPA Laboratory in Region 7. Chain-of-custodies were maintained for all samples. EPA Laboratory Analytical Data are attached.
Effluent monitoring flow data was obtained directly from Rockland County Sewer District #1 WWTP instrumentation which was last calibrated on April 1, 2021.
Split samples were collected and given to the facility representative.
4.2 Inspection Activities
A NPDES Compliance Sampling Inspection (CSI) at Rockland County Sewer District #1 Wastewater Treatment Plant (WWTP) was conducted on April 6-7, 2021. The inspectors met with Mr. Richard Hagen, Chief Plant Operator, and Linda Hoffman, Laboratory Director. Inspector's credentials were presented, and business cards were exchanged. The official representatives were explained that the inspection purpose with supporting on-site activities was to determine if the facility is in compliance with their NPDES permit.
Supporting on-site activities consists of collecting samples from the influent and effluent monitoring locations; observing and evaluating the monitoring locations, observing and evaluating the flow monitoring equipment, observing and evaluating the facility's sampling protocol, touring and evaluating the wastewater treatment units and operation, reviewing and evaluating the in-house and contract chain-of-custodies and analytical data, and interviewing the facility's representatives.
The facility representatives were briefed on the inspection activities during the closing conference. On-site sample results and concerns discovered or observed during the inspection were communicated so that they understand their responsibilities to comply with the Federal and State Regulations; as well as, the Limitations, General and Specific Conditions, and the Requirements of their NPDES permit agreement.
4.3 Deviations and/or Environmental Conditions
Samples with short holding times were shipped to EPA Region 7 Laboratory in Kansas City, Kansas, for analysis. The COC was not included with the shipment as instructed by EPA R7 Laboratory, but instead a photo of the COC was emailed. EPA Region 7 Laboratory turnaround-time (TAT) is 30 days from the receipt date of April 8, 2021.
Linda Hoffman, RCSD #1 WWTP Laboratory Director, questioned the low-level mercury split sample that was received. According to the permit, low-level mercury is to be analyze using EPA Method 1631. The method requires the sample to be preserve with hydrochloric acid (HCL), not nitric acid (HNO3). As a result, the split sample could not be accepted. The lead inspector reached out to EPA Region 2 Laboratory supervisor and analysts. It was indicated that EPA Laboratory analyzes low-level mercury using EPA Method 245.1. A verbal request was made to the supervisor and analysts to review and compare the two methods. In conclusion, a professional judgement was made that the low-level mercury result will only be use as data and not for permit compliance.
Page 5 of 8
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
5.0 ANALYTICAL RESULTS
Rockland County Sewer District #1 WWTP Inspection Dates: April 6-7, 2021
Parameter Flow cBOD5 cBOD5 Loading % cBOD5 Removal TSS TSS Loading % TSS Removal Ammonia-N (NH3) TKN Nitrate (NO3) Nitrite (NO2) Phosphorus Phenolics, T Metal: Copper (Cu)
Lead (Pb) Zinc (Zn) Mercury (Hg), T Settleable Solids (SS) pH Temperature TRC
Units MGD mg/l lbs./day % mg/l lbs./day % mg/l mg/l mg/l mg/l mg/l mg/l lbs/day lbs./day lbs./day ng/l ml/L SU C mg/l
Permit Limit 29 25-40 6,000 - 9,600 85 30 - 45 7,200 - 11,000 85 Monitor Monitor Monitor Monitor Monitor 4.0 (Action Level) 8.1 (Action Level) 0.5 (Action Level) 23 (Action Level) 50 0.3 6.0 - 9.0 Monitor 0.5
EPA Result 18.84 30.8 4,839 82.5 (17.5) 30 4,714 85 (15) 29.8 33.9 0.208 0.103 3.61 0.019 (19.5 ug/l) 6.1 (39.1 ug/l) U 5.5 (34.5 ug/l) U < 0.1 6.87 15 Zero
U = analyte was not detected at or above the reporting limit.
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 footnote 1 of the active NPDES Permit, percent removal for the "Effluent shall not exceed 15% and 15% of the influent concentration values for cBOD5 and TSS respectively." The calculation for cBOD5 was determined to be 17.5 percent.
Page 6 of 8
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
6.2 Inspection Findings
In addition to the sampling event, an inspection of the facility operations was conducted as discussed in Section 4.2. During this inspection the following observations were noted which may contravene the requirements of the permit or the applicable regulations:
6.2.1 Some areas of the secondary settling tank weirs were observed cover with grayish growth that prevents a uniform effluent overflow. Due to the obstructions, some areas of the weir had high flow while others had no or little flow. Areas of high overflow are creating faster underflow which prevents solids from properly settling to the bottom of the tanks. As a result, areas of high overflow are carrying solids to the chlorine contact chambers. According to 40 CFR Part 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 backup 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." Furthermore ,Title 6 of the Official Compilation of Codes, Rules and Regulations of the State of New York (NYCRR) Part 750 -2.8 (a)(2)(i) states, " The permittee shall, at all times, properly operate and maintain all disposal facilities, which are installed or used by the permittee to achieve compliance with the conditions of the permit. Proper operation and maintenance also includes as a minimum, the following:
(i) A preventive/corrective maintenance program for all critical facilities and systems of treatment and control (or related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of the permit. A facility or system is critical if it contains process equipment that is essential for proper operation and necessary to achieve compliance with the applicable SPDES permit effluent limits."
6.2.2 Solids were observed entering the chlorine contact chambers during the plant tour. Bubbles were observed rising to the surface of the chlorine contact chambers which could be an indication of a potential septic condition. Furthermore, solids were observed overflowing the rectangular weirs. According to 40 CFR Part 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 backup 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." Furthermore ,Title 6 of the Official Compilation of Codes, Rules and Regulations of the State of New York (NYCRR) Part 750 -2.8 (a)(2)(i) states, " The permittee shall, at all times, properly operate and maintain all disposal facilities, which are installed or used by the permittee to achieve compliance with the conditions of the permit. Proper operation and maintenance also includes as a minimum, the following:
Page 7 of 8
Rockland County Sewer District #1 WWTP NPDES Permit #: NY0031895
Inspection Dates: April 6-7, 2021
(i) A preventive/corrective maintenance program for all critical facilities and systems of treatment and control (or related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of the permit. A facility or system is critical if it contains process equipment that is essential for proper operation and necessary to achieve compliance with the applicable SPDES permit effluent limits."
7.0 ATTACHMENTS
Attachment #1. A list of approved SIU permitted to discharge into the RCSD #1 WWTP
Attachment #2. An overview map shows where each treatment unit is in the facility.
Attachment #3. The flow schematic shows the wastewater and solids pathways for the RCSD #1 WWTP.
Attachment #4a. Chain of Custody for Samples was emailed to USEPA Region 7 Laboratory.
Attachment #4b. Chain of Custody for Samples was submitted and received by the USEPA Region 2 Laboratory.
Attachment #5. Analytical Data were received from USEPA Region 2 and Region 7 Laboratories for the April 6-7, 2021 NPDES sampling inspection.
Page 8 of 8
Attachment#1: RCSD #1 WWTP accepts approved pretreated wastewater from these significant industrial users.
NAME OF PERMIT HOLDER ADH Health Products Inc. Aptar Bronx River Bottling Chartwell Pharmaceutical Clarkstown Sanitary Landfill Cerovene HDR Intercos Inc.-Congers Intercos West Nyack NYSThruway Authority Orange & Rockland Utilities, Inc. (SV)* Orange & Rockland Utilities, Inc. (WN)* Par Pharmaceutical Rusten A-R&D Laboratory PAR Pharmaceutical - Spring Valley PAR Pharmaceutical R&D Pyramid Company of Rockland (Palisades Center) Ramapo Landfill Rockland Bakery (Demarest Mill Realty) Rockland Bakery - 58 Demarest Mill Realty Rockland County Solid Waste Management Authority Star Kay White, Inc. Teplitz Auto Parts, Inc.
Attachment #2: An overview map of RCSD #1 WWTP shows where each treatment unit is located.
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US EPA REGION 2 LABORATORY
CHAIN OF CUSTODYI FIELD DATA FORM
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Attachment 4b: Chain of Custody for Samples was submitted and received by EPA Region 2 Laboratory.
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Attachment 5: Analytical Data received from USEPA Regions 2 and 7 Laboratories for the 4/6-7/21 NPDES CSI.
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
2890 Woodbridge Avenue Edison , New Jersey 08837
732-906-6886 Phone 732-906-6165 Fax
April 21, 2021
Philip Cocuzza Monitoring & Assessment Branch LSASD/MAB Edison, NJ 08837
RE: Rockland County SD #1 WWTP - 2104009 Enclosed are the results of analyses for samples received by the laboratory on 04/07/2021. 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 2104009 and contact the laboratory. Sincerely,
James Ferretti Acting Chief, LSASD/LB
Project Narrative:
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009
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: 4/21/2021
Page 1 of 9
Reporting Limit(s):
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009
The Laboratory was able to achieve the appropriate limit for each analyte requested.
Field ID Outfall 001-Comp Outfall 001-Grab Influent-Comp
SUMMARY REPORT FOR SAMPLES
Laboratory ID 2104009-01 2104009-02 2104009-03
Matrix Aqueous Aqueous Aqueous
Date Sampled 04/07/2021 09:48 04/07/2021 10:20 04/07/2021 10:15
Date Received 04/07/2021 14:55 04/07/2021 14:55 04/07/2021 14:55
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: 4/21/2021
Page 2 of 9
Analysis Ammonia [As N] Mercury Metals ICP TAL NPDES/DW Nitrogen, Total Kjeldahl Phenolics, Total Phosphorus Residue, Non-Filterable
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009
SUMMARY REPORT FOR METHODS
Method EPA 350.1 SOP C-80 Rev 2.7 EPA 245.1 SOP C-110 Rev 2.7 EPA 200.7 SOP C-109 Rev 3.6 EPA 351.2 SOP C-40 Rev2.7 EPA 420.4 SOP C-29 Rev 2.7 EPA 365.1 SOP C-68 Rev 2.7 SM 2540D SOP C-33 Rev 3.7
Certification
NELAP NELAP NELAP NELAP NELAP NELAP NELAP
Matrix
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: 4/21/2021
Page 3 of 9
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009
Analyte
Field ID: Outfall 001-Comp Metals ICP Copper Lead Zinc Sanitary Ammonia [As N] Nitrogen, Total Kjeldahl Phosphorus Residue, Non-Filterable
Field ID: Outfall 001-Grab Mercury CVAA Mercury Sanitary Phenolics, Total
Field ID: Influent-Comp Sanitary Ammonia [As N] Nitrogen, Total Kjeldahl Phosphorus Residue, Non-Filterable
Result
Qualifier
Reporting Limit
Units Batch
Sample ID: 2104009-01
Date and Time of Analysis*
39.1
10.0
ug/L B104030
---
U
8.00
ug/L B104030
34.5
20.0
ug/L B104030
29.8
1.00
mg/L B104047
33.9
1.00
mg/L B104069
3.61
0.500
mg/L B104033
30.0
10.0
mg/L B104029
Sample ID: 2104009-02
---
U
0.050
ug/L B104031
19.5
10.0
ug/L B104061
Sample ID: 2104009-03
21.3
1.00
mg/L B104047
38.0
1.00
mg/L B104069
3.90
0.500
mg/L B104033
204
10.0
mg/L B104029
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: 4/21/2021
Page 4 of 9
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009
Metals ICP - Quality Control
Analyte
Batch B104030 Blank (B104030-BLK1)
Copper Lead Zinc
LCS (B104030-BS1) Copper Lead Zinc
LCS Dup (B104030-BSD1) Copper Lead Zinc
Matrix Spike (B104030-MS1) Copper Lead Zinc
Matrix Spike Dup (B104030-MSD1) Copper Lead Zinc
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
--- U
10.0 ug/L
--- U
8.00 ug/L
--- U
20.0 ug/L
196
10.0 ug/L
200.0
196
8.00 ug/L
200.0
192
20.0 ug/L
200.0
97.8
85-115
97.8
85-115
96.1
85-115
195
10.0 ug/L
200.0
196
8.00 ug/L
200.0
193
20.0 ug/L
200.0
97.7
85-115
0.153
20
98.0
85-115
0.225
20
96.5
85-115
0.363
20
Source: 2104009-01
257
10.0 ug/L
198
8.00 ug/L
227
20.0 ug/L
200.0
39.1
200.0
ND
200.0
34.5
109
80-120
99.0
80-120
96.4
80-120
Source: 2104009-01
233
50.0 ug/L
200.0
39.1
96.8
80-120
9.74
10
188
40.0 ug/L
200.0
ND
94.2
80-120
5.00
10
223
100 ug/L
200.0
34.5
94.2
80-120
1.93
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: 4/21/2021
Page 5 of 9
Analyte
Batch B104031 Blank (B104031-BLK1)
Mercury
LCS (B104031-BS1) Mercury
LCS Dup (B104031-BSD1) Mercury
Matrix Spike (B104031-MS1) Mercury
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009 Mercury CVAA - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
--- U
0.050 ug/L
0.944
0.050 ug/L
1.000
94.4
85-115
0.979
0.050 ug/L
1.000
97.9
85-115
3.64
20
Source: 2104009-02
0.995
0.050 ug/L
1.000
0.011
98.4
80-120
U.S.E.P.A Region 2 Laboratory
NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 4/21/2021
Page 6 of 9
Analyte
Batch B104029 Blank (B104029-BLK1)
Residue, Non-Filterable
Blank (B104029-BLK2) Residue, Non-Filterable
LCS (B104029-BS1) Residue, Non-Filterable
LCS Dup (B104029-BSD1) Residue, Non-Filterable
Duplicate (B104029-DUP1) Residue, Non-Filterable
Batch B104033 Blank (B104033-BLK1)
Phosphorus
Blank (B104033-BLK2) Phosphorus
LCS (B104033-BS1) Phosphorus
LCS Dup (B104033-BSD1) Phosphorus
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009 Sanitary - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
--- U
10.0 mg/L
--- U
10.0 mg/L
81.0
10.0 mg/L
82.50
98.2
85-115
82.0
10.0 mg/L
82.50
99.4
85-115
1.23
20
Source: 2104009-01
34.0
10.0 mg/L
30.0
12.5
20
--- U
0.0500 mg/L
--- U
0.0500 mg/L
2.27
0.100 mg/L
2.220
2.18
0.100 mg/L
2.220
102
90-110
98
90-110
4
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: 4/21/2021
Page 7 of 9
Analyte
Batch B104033 Matrix Spike (B104033-MS1)
Phosphorus
Batch B104047 Blank (B104047-BLK1)
Ammonia [As N]
Blank (B104047-BLK2) Ammonia [As N]
LCS (B104047-BS1) Ammonia [As N]
LCS Dup (B104047-BSD1) Ammonia [As N]
Matrix Spike (B104047-MS1) Ammonia [As N]
Batch B104061 Blank (B104061-BLK1)
Phenolics, Total
Blank (B104061-BLK2) Phenolics, Total
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009 Sanitary - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
Source: 2104009-01
4.18
0.500 mg/L
1.000
3.61
57
90-110
--- U
0.100 mg/L
--- U
0.100 mg/L
14.6
1.00 mg/L
14.90
98
90-110
14.2
1.00 mg/L
14.90
95
90-110
3
20
Source: 2104009-01
32.6
1.00 mg/L
5.000
29.8
56
90-110
--- U
10.0 ug/L
--- U
10.0 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: 4/21/2021
Page 8 of 9
Analyte
Batch B104061 LCS (B104061-BS1)
Phenolics, Total
LCS Dup (B104061-BSD1) Phenolics, Total
Matrix Spike (B104061-MS1) Phenolics, Total
Batch B104069 Blank (B104069-BLK1)
Nitrogen, Total Kjeldahl
Blank (B104069-BLK2) Nitrogen, Total Kjeldahl
LCS (B104069-BS1) Nitrogen, Total Kjeldahl
LCS Dup (B104069-BSD1) Nitrogen, Total Kjeldahl
Matrix Spike (B104069-MS1) Nitrogen, Total Kjeldahl
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Rockland County SD #1 WWTP - 2104009
Project Number: 2104009 Sanitary - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
2760
50.0 ug/L
2620
106
90-110
2800
50.0 ug/L
2620
107
90-110
1
20
Source: 2104009-02
565
10.0 ug/L
500.0
19.5
109
90-110
--- U
0.100 mg/L
--- U
0.100 mg/L
27.8
0.500 mg/L
26.80
104
90-110
27.6
0.500 mg/L
26.80
103
90-110
0.4
20
Source: 2104009-01
40.0
1.00 mg/L
4.000
33.9
152
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: 4/21/2021
Page 9 of 9
United States Environmental Protection Agency Region 7
300 Minnesota Avenue Kansas City, KS 66101
Date: Subject:
05/06/2021 Transmittal of Sample Analysis Results for ASR #: 8716 Project ID: TAR2RCSD1 Project Description: EPA-Region 2: Rockland County Sewer District #1 WWTP
From:
Margaret E.W. St. Germain, Chief Laboratory Technology & Analysis Branch Laboratory Services and Applied Sciences Division
To: Tabatha Adkins LSASD/LTAB
Enclosed are the analytical data for the above-referenced Analytical Services Request (ASR) and Project. These results are based on samples as received at the Science and Technology Center. The Regional Laboratory has reviewed and verified the results in accordance with procedures described in our Quality Manual (QM). In addition to all of the analytical results, this transmittal contains pertinent information that may have influenced the reported results and documents any deviations from the established requirements of the QM.
Please ensure that you file this electronic (.pdf only) transmittal in your records management system. The Regional Laboratory will now retain all of the original hardcopy documentation (e.g. COC[s] and the R7LIMS field sheet[s], etc.) according to our LSASD records management system.
Please contact us within 14 days of receipt of this package if you determine there is a need for any changes. Please complete the Online ASR Sample/Data Disposition and Customer Survey for this ASR as soon as possible. The process of disposing of the samples for this ASR will be initiated 30 days from the date of this transmittal unless an alternate release date is specified on the Online ASR Sample/Data Disposition and Customer Survey. It is critical that we receive your response in accordance to RCRA and the laboratory accreditation.
If you have any questions or concerns relating to this data package, contact our customer service line at 913-551-5295.
Page 1 of 5
Page 1 of 6
ASR Number: 8716
Summary of Project Information
05/06/2021
Project Manager: Tabatha Adkins
Org: LSASD/LTAB
Phone: 913-551-7128
Project ID: TAR2RCSD1
QAPP Number: 2020-03*
Project Desc: EPA-Region 2: Rockland County Sewer District #1 WWTP
Location: Orangeburg
State: New York
Program: Water Enforcement
Purpose: Compliance Monitoring
GPRA PRC: 000E50
RCSD #1 = Rockland County Sewer District #1 WWTP. NPDES inspection of secondary treatment wastewater facility. Permit #NY0031895. Short holding time samples unable to be analyzed at Region 2 due to TNI audit.
Submited ASR/email from EPA-Region 2 (TT/JM) noted that this ASR is not part of litigation hold activity at this time and *QAPP Document number: Generic QAPP for NPDES CSis (2020-03).
Explanation of Codes, Units and Qualifiers used on this report
Sample QC Codes: QC Codes identify the type of
Units: Specific units in which results are
sample for quality control purpose.
reported.
= Field Sample
mg/L = Milligrams per Liter
Data Qualifiers: Specific codes used in conjunction with data values to provide additional information on the quality of reported results, or used to explain the absence of a specific value.
(Blank)= Values have been reviewed and found acceptable for use.
Page 2 of 5
Page 2 of 6
ASR Number: 8716 Project ID: TAR2RCSD1
Sample Information Summary
05/06/2021
Project Desc: EPA-Region 2: Rockland County Sewer District #1 WWTP
Sample QC
No
Code Matrix Location Description
1 -
Water Influent-Comp
2 -
Water Outfall 001-Comp
External Sample No
Start Date
04/06/2021 04/06/2021
Start Time
10:30 10:07
End Date
04/07/2021 04/07/2021
End Time
Receipt Date
10:15 08:48
04/08/2021 04/08/2021
9:48 per TTran on 5/6/2021 at 13:10pm. nr5/6/2021
Page 3 of 5
Page 3 of 6
ASR Number: 8716 Project ID: TAR2RCSD1
RLAB Approved Analysis Comments
05/06/2021
Project Desc EPA-Region 2: Rockland County Sewer District #1 WWTP
Analysis Comments About Results For This Analysis
1 CBODS in Water by DO Probe
Lab: Region 7 EPA Laboratory - Kansas City, Ks.
Method: EPA Region 7 RLAB Method 3153.lH
Samples: 1-_
2-_
Comments: (N/A)
1 Nitrogen, Nitrate in Water
Lab: Region 7 EPA Laboratory - Kansas City, Ks.
Method: RLAB Method for 3133.7C samples (for individual N03 or N02 analysis)
Samples: 1-_
2-_
Comments:
1 Nitrogen, Nitrite in Water
Lab: Region 7 EPA Laboratory - Kansas City, Ks.
Method: RLAB Method for 3133.7C samples (for individual N03 or N02 analysis)
Samples: 1-_
2-_
Comments: (N/A)
Page 4 of 5
Page 4 of 6
ASR Number: 8716 Project ID: TAR2RCSD1
RLAB Approved Sample Analysis Results
05/06/2021
Project Desc: EPA-Region 2: Rockland County Sewer District #1 WWTP
Analysis/ Analyte
1 CBODS in Water by DO Probe
CBODS
1 Nitrogen, Nitrate in Water
Nitrate as Nitrogen
1 Nitrogen, Nitrite in Water
Nitrite as Nitrogen
Units
mg/L mg/L mg/L
1-_
2-_
176 0.0200 0.0416
30.8 0.208 0.103
Page 5 of 5
Page 5 of 6
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Page 6 of 6
