Document emELg9xXzoBQpYx9pYkQ5zd1q
Report Prepared by: Report Approved by:
NPDES Compliance Sampling Inspection Report
Pedrito A. Francois (Red Point) Wastewater Treatment Facility
St. Thomas, United States Virgin Islands
VI0020044
October 26-27, 2021
ROBERT
Digitally signed by ROBERT
MORRELL
_M_O__R_R__E_L_L_______D_a_te:_20_21_.1_2._01_08_:2_6:_02_-0_5'0_0_' _
Robert Morrell, Geologist
Monitoring Operations Section
Date: ________________
Digitally signed by PHILIP
PHILIP COCUZZA COCUZZA
_________________Da_te_: 2_02_1._12_.0_1 0_6_:28_:3_5 _-05_'0_0'_ Philip Cocuzza, Chief Monitoring Operations Section
Date: ________________
Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
1.0 OBJECTIVE
On October 26-27, 2021, at the request of the Caribbean Environmental Protection Division, a National Pollutant Discharge Elimination System (NPDES) Compliance Sampling Inspection (CSI) was conducted at the Pedrito A. Francois (Red Point) Wastewater Treatment Facility in St. Thomas, United States Virgin Islands. The objective of the CSI was to gather information necessary to determine compliance with the requirements and limitations of TPDES Permit No. VI0020044.
2.0 KEY PARTICIPANTS
Listed below are key inspection participants and contact information, grouped by organization.
U.S. Environmental Protection Agency Robert Morrell, Geologist, Lead Inspector Morrell.robert@epa.gov, 732-906-6804 Thuan Tran, Physical Scientist Tran.thuan@epa.gov, 732-321-4455
Pedrito A. Francois (Red Point) Wastewater Treatment Facility Elbert Proctor Jr., Project Manager, VWNA Caribbean Elbert.proctor@veolia.com, 340-774-3640 Haskell King, Laboratory Manager
U.S. Virgin Islands Department of Planning and Natural Resources Mary Stiehler, Environmental Program Manager Mary.stiehler@dpnr.vi.gov, 340-774-3320
3.0 FACILITY DESCRIPTION
3.1 General Information
The Pedrito A. Francois (Red Point) Wastewater Treatment Facility is located behind the Cyril E. King Airport at Estate Lindberg Bay in St. Thomas, U.S. Virgin Islands. The wastewater treatment plant began operations as a sequential batch reactor (SBR) plant in 2006. The facility is categorized as Standard Industrial Classification (SIC) Code 4952. The plant operates on two 8-hour shifts, 7 days per week. There is no effluent discharge during the hours of 12:00 midnight until 7:00 am.
Page 2 of 12
Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
3.2 Process Information
The Red Point Wastewater Treatment Facility is a sequential batch reactor (SBR) plant consisting of three SBR's. Average flow for the plant is 2 million gallons per day (mgd) with a design capacity of 4 mgd. Most of the influent wastewater is domestic, with the Cancryn pump station providing most of the influent flow. Influent wastewater flows through two rotary drum screens, which are currently out of service until the new drum screens are installed. Installation was expected to be completed by the end of the week. Therefore, there was no removal of solids at the influent location during the sampling survey. Normally, the solids are directed through a chute to a compactor and then a roll-off container. The container is sent to the Bovoni Landfill for disposal. Influent flow is directed to one of three SBR's. During the inspection, only two of the three SBR's were in operation. Treatment in each SBR consists of four stages: the fill stage, aeration stage, settlement stage, and decant stage. During the walk-through inspection, SBR 1 was in the fill stage, SBR 2 had just completed the decant stage and was idle, and SBR 3 was offline and was being aerated. SBR 3 is used to collect the influent wastewater overnight when there is no discharge. Each SBR has a capacity of 1.3 million gallons. The SBR's are designed to be operated automatically but are currently operated manually until an electrical component can be replaced. During the decant stage, decant wastewater is discharged to the ultraviolet (UV) treatment unit, which consists of three banks of UV lamps for disinfection. Two of the three banks were operational during the sampling inspection. Bank A was out of service, Bank B was partially out of service, and Bank C was fully operational. An automatic wiping system keeps the bulbs clean using a chemical called "Accuclean". After UV treatment, the treated wastewater flows into the equalization basin. The wastewater is then pumped to a lagoon at the old wastewater treatment plant and is discharged through Outfall 001, approximately 1 mile offshore of Lindberg Bay.
Waste activated sludge from the SBR's is pumped to one of two aerobic digesters. The supernatant is pumped to the head of the plant. Digested sludge is pumped to the belt filter press for dewatering. A polymer is added immediately before dewatering. The dewatered sludge, containing approximately 20 percent solids, is conveyed to a storage bin. The Class B sludge is disposed at the Bovoni Landfill.
3.3 Facility Self-Monitoring Information
Samples are collected and analyzed on-site for fecal coliforms, enterococci, total suspended solids (TSS), temperature, pH, and dissolved oxygen. Phosphorus, turbidity, oil and grease, and 5-day biochemical oxygen (BOD5) are analyzed by Benchmark Analytics in Florida. Flow is measured continuously at the influent and effluent with magmeters.
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Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
4.0 EPA SAMPLING/INSPECTION ACTIVITIES
4.1 Sampling Activities
On October 26, 2021, an automatic composite sampler was set up at the influent sampling location. The sampler was programmed to collect an aliquot of the influent wastewater every 15 minutes for 24 hours. The composite sample container was packed in ice.
An automatic composite sampler was also set up at the effluent composite sampling point for Outfall 001. The sampler was programmed to collect an aliquot of the effluent wastewater every 15 minutes for 13 hours (the sampler shut down at midnight when the effluent flow stops). The composite sample container was packed in ice.
Using a rod and clamp, five consecutive grab samples (Grab #1, Grab #2, Grab #3, Grab #4, and Grab #5) were collected 10 minutes apart at the effluent grab sampling point for Outfall 001. These samples were delivered to Ocean Systems Laboratories in St. Thomas for the analysis of fecal coliform and enterococci.
Grab samples were collected at the dissolved oxygen and temperature sampling point for the on-site analysis of pH, temperature, dissolved oxygen, and total residual chlorine. The results were recorded in the field notebook.
On October 27, 2021, the automatic composite sampler at the effluent composite sampling point was restarted at 0700 hours to resume collecting aliquots of the effluent wastewater every 15 minutes until the 24-hour sampling period was completed. A 24-hour composite sample was collected from the automatic sampler at Outfall 001 for BOD5 and TSS.
A 24-hour composite sample was collected from the automatic sampler at the influent sampling location. This sample was analyzed for BOD5 and TSS.
Using a rod and clamp, a grab sample (Grab #6) was collected at the effluent grab sampling point for Outfall 001. This sample was analyzed for phosphorus, oil and grease, and turbidity.
Flow readings were provided by the facility representative. The 24-hour flow for 10/26/21 was 1.843 mgd. On 10/27/21, the total flow at 1349 hours was 0.938 mgd.
All sample containers, preservation techniques, and holding times were in accordance with U.S. EPA requirements specified in 40 CFR Part 136. Samples for fecal coliforms and enterococci were placed in a cooler with wet ice and transported to Ocean Systems Laboratories in St. Thomas, U.S. Virgin Islands. All other samples were placed in a cooler with wet ice and shipped overnight to the U.S. EPA Region 2 Laboratory in Edison, New Jersey. Split samples, with the exception of fecal coliforms and enterococci, were collected and given to the facility representative.
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Red Point Wastewater Treatment Facility VI0020044
4.2 Inspection Activities
Inspection Date: October 26-27, 2021
A walk-through inspection of the Red Point Wastewater Treatment Facility was conducted and the inspection findings are listed in Section 6.2.
4.3 Deviations and/or Environmental Conditions
Because there is no effluent discharge from midnight until 7:00 am, composite samples are not collected during this time.
5.0 ANALYTICAL RESULTS
Pedrito A. Francois (Red Point) Wastewater Treatment Facility October 26-27, 2021 Outfall 001
Parameter Flow (mgd) BOD5 (mg/l) BOD5 (percent removal) TSS (mg/l) TSS (percent removal) Phosphorus (mg/l) Fecal Coliforms (CFU/100 ml) Fecal Coliforms (CFU/100 ml) Fecal Coliforms (CFU/100 ml) Fecal Coliforms (CFU/100 ml) Fecal Coliforms (CFU/100 ml) Fecal Coliforms (CFU/100 ml) (Geometric Mean - 5 samples) Enterococci (CFU/100 ml) Enterococci (CFU/100 ml) Enterococci (CFU/100 ml) Enterococci (CFU/100 ml) Enterococci (CFU/100 ml) Enterococci (CFU/100 ml) (Geometric Mean - 5 samples) Dissolved Oxygen (mg/l) Temperature (oC) pH (su) Oil and Grease (mg/l) Total Residual Chlorine (mg/l) Turbidity (NTU)
Influent -155 -112 ---------
-------
-------
Effluent 1.843 23.0 85.2 10.0 91.1 2.24 >6000 >6000 >6000 >6000 >6000 >6000
17,000 J 19,100 J 18,300 J 18,700 J 13,000 J 17,059 J
2.5 31 7.49 Not detected 0.0 13.0
Permit Limit 8.0 30 85 (minimum) 30 85 (minimum) Monitor only 1000 1000 1000 1000 1000 70
Monitor only Monitor only Monitor only Monitor only Monitor only Monitor only
Monitor only Monitor only 6.0 - 9.0 Monitor only 2.0 for recycle effl. Monitor only
J = Estimated value
Page 5 of 12
Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
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:
Fecal Coliforms (see above table).
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:
1. During the 24-hour sampling inspection, the two rotary drum screens were off-line. Therefore, there was no solids removal at the influent location. The facility was in the process of installing new rotary drums. The work was expected to be completed by the end of the week.
2. The SBR's need to be cleaned. Because the rotary screens were off-line, a lot of solids have accumulated in SBR 2. Also, there is a substantial amount of visible grease in SBR 1.
3. The UV disinfection system is not fully operational and needs to be serviced. Bank A is out of service and Bank B is partially out of service.
4. The flow meters at the influent and effluent locations haven't been calibrated since 2017. Flow meters should be calibrated at least once per year.
5. The air scrubber system for hydrogen sulfide was not in operation.
6. The equalization basin has not been cleaned since 2017. Solids should be removed from the equalization basin at least once per year.
7.0 ATTACHMENTS
Photographs (#1 - #7) EPA Laboratory Data Report Ocean Systems Laboratories Data Report Chain of Custody / Field Data Forms
Page 6 of 12
Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
Photo #1: View of the effluent composite sampling point.
Page 7 of 12
Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
Photo #2: View of the effluent grab sampling point.
Page 8 of 12
Red Point Wastewater Treatment Facility VI0020044
Inspection Date: October 26-27, 2021
Photo #3: View of the dissolved oxygen and temperature sampling point.
Page 9 of 12
Red Point Wastewater Treatment Facility VI0020044
Photo #4: View of the influent sampling location.
Inspection Date: October 26-27, 2021
Page 10 of 12
Red Point Wastewater Treatment Facility VI0020044
Photo #5: View of SBR 1.
Inspection Date: October 26-27, 2021
Photo #6: View of SBR 2.
Page 11 of 12
Red Point Wastewater Treatment Facility VI0020044
Photo #7: View of SBR 3.
Inspection Date: October 26-27, 2021
Page 12 of 12
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
2890 Woodbridge Avenue Edison , New Jersey 08837
732-906-6886 Phone 732-906-6165 Fax
November 02, 2021
Philip Cocuzza Monitoring & Assessment Branch LSASD/MAB Edison, NJ 08837
RE: Red Point WWTP - 2110022 Enclosed are the results of analyses for samples received by the laboratory on 10/28/2021. 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 2110022 and contact the laboratory. Sincerely,
Gregory J. Santacroce Acting Chief, LSASD/LB
Project Narrative:
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022
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: 11/2/2021
Page 1 of 8
Reporting Limit(s):
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022
The Laboratory was able to achieve the appropriate limit for each analyte requested.
Field ID Influent-24-Hr Comp. Effluent-Outf001-24-Hr Comp. Effluent-Outf001-Grab#6
SUMMARY REPORT FOR SAMPLES
Laboratory ID 2110022-01 2110022-02 2110022-03
Matrix Aqueous Aqueous Aqueous
Date Sampled 10/27/2021 11:03 10/27/2021 11:05 10/27/2021 13:22
Date Received 10/28/2021 10:50 10/28/2021 10:50 10/28/2021 10:50
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: 11/2/2021
Page 2 of 8
Analysis Biochemical Oxygen Demand Oil & Grease Phosphorus Residue, Non-Filterable Turbidity
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022
SUMMARY REPORT FOR METHODS
Method SM 5210B SOP C-21 Rev 2.7 EPA 1664A SOP C-126 Rev 1.6 EPA 365.1 SOP C-68 Rev 2.7 SM 2540D SOP C-33 Rev 3.7 EPA 180.1 SOP C-81 Rev 2.7
Certification
NELAP NELAP NELAP NELAP NELAP
Matrix
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: 11/2/2021
Page 3 of 8
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022
Analyte
Field ID: Influent-24-Hr Comp. Sanitary
Biochemical Oxygen Demand Residue, Non-Filterable Field ID: Effluent-Outf001-24-Hr Comp. Sanitary
Biochemical Oxygen Demand Residue, Non-Filterable Field ID: Effluent-Outf001-Grab#6 GC - Sanitary Oil & Grease Sanitary Phosphorus Turbidity
Result
Qualifier
Reporting Limit
Units Batch
Sample ID: 2110022-01
Date and Time of Analysis*
155
2.00
mg/L B111019 11/02/2021 08:04
112
10.0
mg/L B110140
Sample ID: 2110022-02
23.0
2.00
mg/L B111019 11/02/2021 08:04
10.0
10.0
mg/L B110140
Sample ID: 2110022-03
---
U
6.50
mg/L B110149
2.24
0.100
mg/L B111004
13.0
0.100
NTU B110138 10/28/2021 11:10
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: 11/2/2021
Page 4 of 8
Analyte
Batch B110149 Blank (B110149-BLK1)
Oil & Grease
LCS (B110149-BS1) Oil & Grease
LCS Dup (B110149-BSD1) Oil & Grease
Matrix Spike (B110149-MS1) Oil & Grease
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022
GC - Sanitary - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
--- U
5.00 mg/L
39.1
5.00 mg/L
40.00
98
78-114
35.0
5.00 mg/L
40.00
88
78-114
11
20
Source: 2110022-03
45.4
5.00 mg/L
50.00
ND
91
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: 11/2/2021
Page 5 of 8
Analyte
Batch B110138 Blank (B110138-BLK1)
Turbidity
Blank (B110138-BLK2) Turbidity
LCS (B110138-BS1) Turbidity
LCS Dup (B110138-BSD1) Turbidity
Duplicate (B110138-DUP1) Turbidity
Batch B110140 Blank (B110140-BLK1)
Residue, Non-Filterable
Blank (B110140-BLK2) Residue, Non-Filterable
LCS (B110140-BS1) Residue, Non-Filterable
LCS Dup (B110140-BSD1) Residue, Non-Filterable
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022 Sanitary - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
--- U
0.100 NTU
--- U
0.100 NTU
17.0
0.100 NTU
16.50
103
85-115
16.9
0.100 NTU
16.50
102
85-115
0.590
20
Source: 2110022-03
12.8
0.100 NTU
13.0
1.55
20
--- U
10.0 mg/L
--- U
10.0 mg/L
84.0
10.0 mg/L
82.50
79.0
10.0 mg/L
82.50
102
85-115
95.8
85-115
6.13
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: 11/2/2021
Page 6 of 8
Analyte
Batch B110140 Duplicate (B110140-DUP1)
Residue, Non-Filterable
Batch B111004 Blank (B111004-BLK1)
Phosphorus
Blank (B111004-BLK2) Phosphorus
LCS (B111004-BS1) Phosphorus
LCS Dup (B111004-BSD1) Phosphorus
Matrix Spike (B111004-MS1) Phosphorus
Matrix Spike (B111004-MS2) Phosphorus
Batch B111019 Blank (B111019-BLK1)
Biochemical Oxygen Demand
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022 Sanitary - Quality Control
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
Source: 2110022-02
11.0
10.0 mg/L
10.0
9.52
20
--- U
0.0500 mg/L
--- U
0.0500 mg/L
2.38
0.250 mg/L
2.220
107
90-110
2.26
0.250 mg/L
2.220
102
90-110
5
20
Source: 2110022-03
3.21
0.500 mg/L
1.000
2.24
97
90-110
Source: 2110018-02
6.28
0.500 mg/L
1.000
5.90
38
90-110
--- U
2.00 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: 11/2/2021
Page 7 of 8
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 2 Laboratory
Final Report Project: Red Point WWTP - 2110022
Project Number: 2110022 Sanitary - Quality Control
Analyte
Batch B111019 LCS (B111019-BS1)
Biochemical Oxygen Demand
LCS (B111019-BS2) Biochemical Oxygen Demand
Duplicate (B111019-DUP1) Biochemical Oxygen Demand
Matrix Spike (B111019-MS1) Biochemical Oxygen Demand
Matrix Spike Dup (B111019-MSD1) Biochemical Oxygen Demand
Result
Reporting Limit
Units
Spike
Source
%REC
Level
Result %REC Limits
RPD
RPD Limit
204
mg/L
198.0
103 84.6-115.4
213
mg/L
Source: 2110022-01
146
2.00 mg/L
Source: 2110022-01
508
2.00 mg/L
Source: 2110022-01
504
2.00 mg/L
198.0
155
396.0
155
396.0
155
107 84.6-115.4
5.72
25
89.4
75-125
88.4
75-125
0.790
200
U.S.E.P.A Region 2 Laboratory
NOTE: The results recorded in this report relate only to the samples as received on the date and at the time noted Reported: 11/2/2021
Page 8 of 8
US EPA REGION 2 LABORATORY
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3=HCI pH<2
10=NH4CI
4=Na2S203
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6=Ascorbic Acid
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