HomeMy WebLinkAbout05. 2016 NPDES Annual Report 5m
Central Contra Costa Sanitary District
BOARD OF DIRECTORS n �
POSITION PAPER
Board Meeting Date: March 2, 2017
Subject: 2016 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES) ANNUAL REPORT
Submitted By: Initiating Dept./Div.:
Lori Schectel Engineering/Environmental and
Environmental and Regulatory Regulatory Compliance
Compliance Division Manager
REVIEWED AND RECOMMENDED FOR BOARD ACTION:
M. Esparza— Laboratory Superintendent
Roger S. Bailey
General Manager
ISSUE: The Central Contra Costa Sanitary District (Central San) 2016 National
Pollutant Discharge Elimination System (NPDES) Annual Report has been prepared for
submission to the California Regional Water Quality Control Board (RWQCB),
San Francisco Bay Section. This annual report is presented to the Board of Directors
for informational purposes.
BACKGROUND: During 2016, the Treatment Plant received a total of 12.96 billion
gallons of wastewater, which is an average influent flow of 35.4 million gallons per day.
The Treatment Plant produced an effluent with annual average carbonaceous
biochemical oxygen demand and total-suspended solids concentrations of 6.1 mg/L
and 7.6 mg/L, respectively. These concentrations are markedly lower than our NPDES
permit standards of 25 mg/L and 30 mg/L, respectively. Both carbonaceous
biochemical oxygen demand and total-suspended solids removal efficiency for the
Treatment Plant averaged 97.1 and 97.4 percent, respectively. Solids disposal during
the year involved the incineration of dewatered sludge in Central San's multiple hearth
furnaces. Approximately 4,170 tons of furnace ash was produced. The ash met
regulatory requirements for final disposal throughout the year.
Over 15,000 analyses were completed for process control and NPDES permit
compliance. The Treatment Plant effluent met all (100 percent) of the NPDES permit
requirements throughout the year, which makes this the nineteenth consecutive year of
full compliance.
Page 1 of 2
POSITION PAPER
Board Meeting Date: March 2, 2017
Subject- 2016 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES) ANNUAL REPORT
Central San's NPDES permit requires the annual report to have four content areas that
cover the following:
• A comprehensive discussion of treatment plant performance and compliance
with the permit. This includes a discussion of all projects that were planned or
completed to improve performance and reliability of the Central San's
wastewater treatment, collection and disposal practices.
List of Approved Analyses.
• Plant schematic.
0 Annual review of Facility Reports.
Additionally, Central San has compiled yearly totals, averages, maximum and minimum
values for influent, final effluent, sludge, and receiving water quality parameters for
Board review and Central San staff use. This information has been submitted to the
RWQCB electronically and is not a required component of the annual report.
The NPDES annual report was submitted to the RWQCB on January 27, 2017.
FINANCIAL IMPACTS: None.
COMMITTEE RECOMMENDATION: This matter was reviewed by the Committee on
February 17, 2017.
RECOMMENDED BOARD ACTION: Receive the 2016 NPDES Annual Report.
Attached Supporting Document:
1. 2016 National Pollution Discharge Elimination System Annual Report
2. PowerPoint Presentation
Page 2 of 2
ATTACHMENT 1
t7
--to
2016
NATIONAL POLLUTANT
DISCHARGE ELIMINATION
SYSTEM ANNUAL REPORT
Central Contra Costa Sanitary District
5019 Imhoff Place
Martinez, CA 94553
CENTRAL CONTRA COSTA SANITARY DISTRICT
2016 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM!
ANNUAL REPORT
INDEX
Page No.
Discharger's Self-Monitoring Program Annual Report Summary of
Comments and Significant Events — 2016.......................................................................................... 1
Table 1 Compliance Summary Final Effluent ............................................................................9
Table 2 Annual Final Effluent Waste Characteristics...............................................................11
Table 3 Annual Influent Waste Characteristics .......................................................................12
Table 4 Annual Final Effluent Waste Characteristic, Total Suspended Solids ........................13
Table 5 Annual Final Effluent Waste Characteristic, Carbonaceous
Biochemical Oxygen Demand ..........................mm......aoo............ ................. ...... 14
Table 6 Annual Final Effluent Waste Characteristic, 96-Hour Flow-through
BioassayResults Summary ............. ........................................................................ 15
Table 7 Annual Final Effluent Waste Characteristic, Enterococci Count ................................16
Table 8 Annual Final Effluent Waste Characteristic, Ammonia ...............................................19
Table 9 Annual Final Effluent Waste Characteristic, pH .........................................................18
Table 10 Annual Influent Waste Characteristics, Trace Metals Concentrations ....................... 19
Table 11 Annual Influent Waste Characteristics, Volatile Organics ..........................................20
Table 12 Annual Influent Waste Characteristics, Semi-Volatile Organics .................................21
Table 13 Annual Influent Waste Characteristics, PAHs ...................:........................................22
Table 14 Annual Influent Waste Characteristics, Chlorinated Pesticides .................................23
Table 15 Annual Final Effluent Waste Characteristics, Trace Metals ....................................... 24
Table 16 Annual Final Effluent Waste Characteristics, Mercury ...............................................25
Table 17 Annual Final Effluent Waste Characteristics, Volatile Organics .................................26
r
INDEX (Continued)
Page No.
Table 18 Annual Final Effluent Waste Characteristics, Semi-Volatile Organics ........................27
Table 19 Annual Final Effluent Waste Characteristics, PAHs ...................................................28
Table 29 Annual Final Effluent Waste Characteristics, Organophosphorus Pesticides............ 29
Table 21 Annual Final Effluent Waste Characteristics, Dioxins and Furans ..............................30
Table 22 Annual Final Effluent Waste characteristics, Chlorinated Pesticides ........................31
Table 23 Chronic Toxicity Results..............................................................................................32
Table 24 Mass Loadings of Mercury Concentrations.................................................................33
Table 25 State Water Resources Control Board Minimum Levels for
VolatileOrganics ...................................................................................................... 34
Table 25 State Water Resources Control Board Minimum Levels for
Semi-Volatile Organics ...............................................................................................35
Table 27 State Water Resources Control Board Minimum Levels for
TraceMetals ...............................................................................................................37
Table 28 State Water Resources control Board Minimum Levels for
Pesticidesand PCBs ..................................................................................................38
Table 29 Solids Handling Summary ...........................................................................................39
Table 39 Annual Bay Sampling Data, Ammonia .......................................................................40
Table 31 Annual Bay Sampling Data, Nitrate ............................................................................41
Table 32 Annual Bay Sampling Data, Nitrite............................ ,.........42
Table 33 Annual Bay Sampling Data, Chlorophyll-a .................................................................43
Table 34 Annual Bay Sampling Data, Phosphorus ...................................................................44
Table 35 Annual Bay Sampling Data, Turbidity .........................................................................45
Table 35 Annual Bay Sampling Data, Salinity............................................................................45
Table 37 Annual Bay Sampling Data, Conductivity....................................................................47
Table 38 Dissolved Oxygen (Do), pH, Temperature ....................................,.............................48
ii
INDEX (Continued)
Appendix A Certifications for Analyses at Central Contra Costa Sanitary District
Appendix B Certifications for Analyses Performed for Central Contra Costa Sanitary
District by a Separate Certified Laboratory
Figure 1 Bay Sampling Stations Aerial Photograph
Figure 2 Treatment Plant Schematic with Sampling Locations
Figure 3 Treatment Plant Site Map
Attachment 1 BACWA RMP Letter
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NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM ANNUAL REPORT
REPORTING DISCHARGER: Central Contra Costa Sanitary District
DATE OF REPORT: January 27, 2017
NPDES PERMIT NO: CA0037648
REPORTING PERIOD: January 1 through December 31, 2016
Attached is the 2016 National Pollutant Discharge Elimination System (NPDES)Annual
Report for the Central Contra Costa Sanitary District (Central San), in compliance with
Order No. R2-2012-0016 (Permit) for NPDES Permit No. CA0037648.
Annual Compliance Summary Table and Tabular Data Section V.C.1.f 1 and 3
Central San recognizes that the annual compliance summary and the tabular data are
not required herein per Order No. R2--2012-0016, effective April 1, 2012. In this
document, Central San discusses-treatment plant performance and compliance with the
Permit, presents tabular summaries of water quality parameters for influent, final
effluent, sludge, and bay stations as a courtesy and considers the electronic submittals
previously made as compliance with Sections V.C.1.f(1) and (3) of the Permit as the
official Annual Report data.
Comi2rehensive Discussion of Treatment Plant Performance and Compliance with
the Permit Section V.C.1.f�2}}
The final effluent quality remained in compliance with all applicable NPDES standards
for the year, making 2016 the 19th consecutive year that Central San has accomplished
this milestone.
In February 2016, Central San completed the Annual Effluent Characterization Study.
The effluent was analyzed for priority pollutants listed in Table C of the Regional
Standard Provisions (Attachment G) using approved methods listed in Table 1C of 40
CFR Part 136. The concentrations of these priority pollutants have not increased over
past performance measurements and were either below their applicable water quality
criteria as listed in Tables F-7 and F-8 of Order R2-2012-0016, or not detected.
Central San filed a Report of Waste Discharge as application for re-issuance of waste
discharge requirements, as required by Title 23, California Code of Regulations on
September 27, 2016, in accordance with the September 30 deadline.
Discharge Monitoring Program Annual Report
Summary of Comments and Significant Events— 2016
Page 2
January 27, 2017
Central San continued implementing its Capital Improvement Program in 2016. The
following projects were completed or are in progress to improve performance and
reliability of Central San's wastewater treatment, collection, and disposal practices.
Overarching central San Projects:
Geographic Data Integration Replacement
Completion Date: June 2016 Total Project Cost; $952,000
This project implemented a new CIS and web mapping portal to standardize the
collection of asset data and improve spatial asset management. Environmental
Systems Research Institute (ESRI) software was chosen based on its ability to
provide a versatile and expandable solution that integrates easily with other software
(such as the CMMS and CCTV systems) currently in use at Central San. The ESRI
system became fully operational in April 2016. Enhancements to the system will
continue to be implemented overtime.
Computerized Maintenance Management System Replacement
Completion Date: Februa 2017 Total Project Cost $675,000
This project will support the asset management program by replacing the
computerized maintenance management system (CMMS) for the collection system
and treatment plant. A single GIS-centric solution is being implemented to
encompass all Central San assets (collection system, recycled water distribution,
treatment plant, pumping stations, fleet, and general facilities). The first phase went
into effect on September 2016 and included the collection system, recycled water
distribution, and fleet assets. The second phase for the remaining assets (treatment
plant, pumping stations, and general facilities) will go live in January 2017.
Comprehensive Wastewater Master Plan
Completion Date: June 2017 Total Project Cost: $5,250,,600
This project will develop a comprehensive master plan for the wastewater treatment
plant, collection system, and recycled water treatment facilities that identifies
necessary capital improvement projects. The master plan is being completed in
coordination with the District's asset management program, which includes condition
assessments and the development of new tools such as a new collection system
hydraulic model. Recommended projects will be included in Central San's Capital
Improvement Plan and Annual Budget
2
Discharge Monitoring Program Annual Report
Summary of Comments and Significant Events—2010
Page 3
January 27, 2017
Asset Management Program Development
Completion Date: June 2019 Total Project Cost: $21-7-00,000
This project will develop a comprehensive asset management program to optimize
asset lifecycles. The program will predict, at an acceptable level of risk, the
replacement of assets needed to sustain reliable wastewater collection and
treatment. As part of this project, Central San will acquire new software applications
to improve electronic access of current and legacy data, such as adding treatment
plant infrastructure into the geographic information system (CIS), and implementing
a new program management information system.
Treatment Plant:
Piping Renovations - Phase 8
Com letion Date.*--M-ay 2010 Total Project Cost:_$1,750,000
This project renovated or replaced various piping, instrumentation, and equipment
that had been identified by engineering, operations, and maintenance staff.
Wet Scrubber caustic injection
Com letion Date: June 2010 Total Project Cost: $1,144,500
This project installed a new caustic injection system on the wet scrubbers of the
multiple hearth furnaces to reduce hydrochloric acid emissions from the furnaces.
The system included an 8,000 gallon polyethylene tank, a metering pump skid, valve
skids, and piping.
Primary Treatment Renovation
Completion Date: November 2010 Total Project cost: $14,947,000
This project renovated or replaced both the water and the air supply pipelines at the
primary sedimentation tanks. The grit handling facility was-renovated and the scum
collection system was upgraded with new scum sprays, new helical scum skimmers
and drives, and stainless steel scum hoppers for Tanks 1 and 2. The scum
thickening unit in the Solids conditioning Building was replaced. other primary tank
improvements included installation of new baffles, replacement of chain drives,
sludge flight drive shafts and bearings, concrete repairs, the upgrading of hand
railings, and construction of a new level control valve. Primary Effluent (PE) Pump 1
and PE Pump 2 were also renovated during the project.
3
Discharge Monitoring Program Annual Report
Summary-of Comments and Significant Events—2018
Page 4
January 27, 2.017
Substation 18 Switchgear Replacement
Completion Date: January 2017 Total Project Cost: 640 000
This project replaced the electrical switchgear, busway, and bus duct for the
treatment plant's main influent pumping station. Work included removal of the
existing obsolete switchgear and replacement with new switchgear to increase the
reliability of the system.
Treatment Plant Safety Enhancements Phase 4
Completion Date: Januaa 2017 Total Project Cost: 11,070.,000
This project improved safety at Central San. Work included construction of a
hazardous materials containment area, handrail modifications, and other
improvements to eliminate safety hazards throughout the plant.
Pump and Blower Seismic Upgrades
Completion Date: June 2017 Total Project Cost: 5,600,000
This project is part of Central San's Seismic Improvement Plan created in 2009
based on the Treatment Plant Seismic Vulnerability Assessment. The project will
retrofit the Pump and Blower Building to meet current seismic design standards.
Collection system:
MI Rehabilitation Project
Completion Date: Janua 2010 Total Proiect Cost: $2.320.000
This project renovated approximately 3,100 feet of the M 1 transmission line, a 42"
diameter reinforced concrete pipeline located on the treatment plant site.
Lafayette Sewer Renovations — Phase 9
Com letion Date: Janus 2018 Total Project Cost: $3,064,000
This project replaced or rehabilitated approximately 8,545 feet of six and 15-inch
sewers in the Lafayette area.
Martinez Sewer Renovations-- Phase 4
Com letion Date: May 2018 Total Project Cost: $3,860,000
This project replaced or rehabilitated 7,700 linear feet of six and eight- inch sewer
mains located in the City of Martinez.
4
Discharge Monitoring Program Annual Report
Summary of Comments and Significant Events —2015
Page 5
January 27, 2017
North orinda Sewer Renovations — Phase 8
Com letion Date: November 2010 Total Pro'ect Cost: $2,950,000
This project replaced or rehabilitated up to 8,300 linear feet of six and eight-inch
sewer mains located in the City of Orinda.
Lafayette Sewer Renovations -- Phase 10
Completion Date: December 2015 Total Pro'ect Cost: $3,3909000
This project replaced or rehabilitated approximately 8,880 feet of six and 15-inch
sewers in the Lafayette area.
Pleasant Hili — Grayson creek Trunk
Completion Date: April 2017 Total Pro'ect Cost: $13,700,000
This project will install approximately 10,000 feet of 15, 18, and 24--inch.relief
sewers. These new trunklines will be utilized for diverting sewage for future sewer
mainline-renovation needs. As of December 31, 2010, the project is 60% complete.
List of Approved Analyses Section V.C.1.f.4.i.ii.ill
All analyses electronically reported were conducted at the Dr. Mario Menesini
Environmental Laboratory, except for pesticides, dioxin, polynuclear aromatic
hydrocarbons (PAHs), PCB congeners, and chronic toxicity. These analyses were
performed at contract laboratories. Both the contracted laboratories and the Dr. Mario
Menesini Environmental Laboratory are certified by the State Water Resources control
Board's Division of Drinking Water to perform the aforementioned analyses. No
analyses were waived. Laboratory certifications are attached in Appendices A and B.
Drawings Section V.D.S
Figure 1 is an aerial photograph with the Suisun Bay sampling stations delineated.
Figure 2 is the Treatment Plant schematic with sampling locations delineated. Figure 3
is the Treatment Plant site map.
Operations and Maintenance Manual
On an annual basis, the operations and Maintenance (0&1111) manuals related to
Central San's treatment process and maintenance procedures are reviewed.
Maintenance-specific O&M manuals, as well as O&M manuals related to process
control strategies and the internal computer operating system known as DYNAC, are
also reviewed annually.
5
Discharge Monitoring Program Annual Report
Summary of Comments and Significant Events—2018
Page 8
January 27, 2017
The O&M procedures are stored on the intranet in the Plant Information Management
System (PIMS) and in binders located in the Plant operations Control Room, Solids
Conditioning Building Control Room, and the Maintenance and Reliability Center.
When systems change due to capital projects, new O&M manuals are placed in these
libraries.
Information found in PIMS and the O&M manuals provides references for personnel as
well as training materials for professional development. Reference materials and
videos include information on system overviews, operations and maintenance
procedures, alarms, troubleshooting, control strategies, lab process data, daily
microscopy, schematics, equipment upgrades and modifications, and updated
regulatory documents. Below is a list of updates and additions made to PIMS and the
O&M manuals in 2018:
• Updates and additions to manuals for:
o Plant Electrical
o Cogen operations Training
o UV operations
o Furnace O&M
o Annual operator Refresher Training
o Headworks'tPrimary operator Training
o Secondary operator Training
o Various Plant Schematics converted to AutoCAD format and
uploaded
o Furnace 129 Regulation Page added
o Helpful operational Tips/Tricks Page added
• Training video additions:
o DAF System overview
o Primary Sedimentation Tank Shutdown Training Video
o Substation 82 overview Training Video
o New Substation 10 Switchgear overview Training Video
o Running RAS Pump VFD from Keypad Training Video
o Splitting and Tying Power Training Videos
o Fuel oil Startup Training Video
o Furnace 129 Annual Refresher Training Video Completed
• one third of the Plant operations SOPS have been reviewed, updated,
and stored to Laserfiche and PIMS
Contingency& SO: Prevention Plans
Central San's Contingency and Spill Prevention Plan was updated in December 2010 to
reflect recent capital improvements, facility changes, and current personnel. All edits
have been reviewed and approved by Central San's Division Managers for Plant
Operations and Environmental and Regulatory compliance. The Contingency and
6
Discharge Monitoring Program Annual Report
Summary of Comments and Significant Events ---2010
Page 7
January 27, 2017
Spill Prevention Plan was distributed throughout Central San to notify staff of the new
edition. Edits to the plan were tracked on the Amendment Log for recipients to easily
identify what changed from the previous edition. The next review and evaluation of
Central San's Contingency and Spill Prevention Plan is scheduled for the summer of
2017.
Wastewater Facilities Status Report& Proper Supervision and Qperation of
Publicly owned Treatment Works POTWs
Central San's Wastewater Facility Status Report and Proper Supervision and Operation
of POTWs (Report) was updated in August 2010, This Report includes Central San's
Annual Budget, Comprehensive Annual Financial Report, the Capital Improvement
Plan, the Organization Chart, and a list of all the certifications and licenses held in
Central San's Plant Operations Division and Laboratory as of August 2010. The
Report is posted on PIMS and is accessible to all staff. The Report documents how
Central San operates and maintains its wastewater collection, treatment, and disposal
facilities to ensure that all facilities are adequately staffed, supervised, financed,
operated, maintained, repaired, and upgraded as necessary to provide adequate and
reliable transport, treatment, and disposal of all wastewater from both existing and
planned wastewater sources within the service area.
The Annual Budget includes the Capital improvement Plan, which the Capital Projects
Division reviews and updates annually. The Finance Division prepares the Annual
Budget for approval by central San's Board of Directors every June and also the
Comprehensive Annual Financial Report, issuing the final report to Central San's Board
of Directors every November. The Administration Department updates organizational
charts, which are available on OTIS, as needed to accurately reflect changes in
personnel. The list of certifications and licenses held in the Plant Operations Division
and Laboratory is updated at least once a year.
Permit Provisions Update
central San is a member of the Bay Area clean Water Agencies (BACWA) and through
its membership makes financial contributions for the development and support of water
quality studies and attainment strategies. central San also provides support for
ambient receiving water monitoring conducted by the San Francisco Estuary Institute's
(SFEI) Regional Monitoring Program. central San's compliance with this permit
provision is documented by the transmittal letter to Regional Water Quality control
Board (RWQCB) via BACvvA on January 24, 2017. A copy of the letter is shown as
Attachment 1.
7
Discharge Monitoring Program Annual Report
Summary of Comments and Significant Events—2016
Page 8
January 27, 2017
Central San also is subject to waste discharge requirements (WDRs) set forth in
RWQCB, Order No. R2--2014-0014, NPDES No. CA 0038873. This is the WDR for
Nutrients from Multiple Wastewater Dischargers to San Francisco Bay. Central San, as
a member of BACWA, is in compliance with the permit.
Other special Provision Update
All Other Special Provisions required for compliance with Section VI.C.6.c and d of
Central San's Wastewater Treatment Plant National Pollutant Discharge Elimination
System (NPDES) Permit (Order No. R2-2012-0016, NPDES No. CA 0037648) were
completed prior to January 2016.
I certify under penalty of law that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that
quali'fi'ed personnel properly gather and evaluate the information submitted. Based on
my inquiry of the person or persons who manage the system or those persons directly
responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. 1 am aware that there are
significant penalties for submitting false information, including the possibility of fine and
imprisonment for knowing violations.J1 (40. C.F.R. § 122.22(d).)
Sincerely,
A
Ann K. Sasaki, P.E.
Deputy General Manager
ARW:LS:hf
Attachments
cc: Roger S. Bailey, General Manager
8
The remaining portions of the NPDES Annual Report contains numerous pages of
statistical data. If you wish to obtain a copy, please contact
Elaine R. Boehme, Secretary of the District at eboehme@centralsan.org
ATTACHMENT 2
"i � S
2016 NATIONAL POLLUTANT
DISCHARGE ELIMINATION SYSTEM
ANNUAL REPORT
Central Lantra Costa Sanitary District
Mary Lou Esparza
'"" Laboratory Superintendent
February 17, 2017
... ........
1
2016 NPDES ANNUAL REPORT
Total flow treated = 12.96 billion gallons (11.8 billion in 2015)
Average daily flow= 35.4 million gallons (32.3 million in 2015)
Peak hourly flow= 127 million gallons per day (109 million in 2015)
Ash disposal= 4,170 tons (wet weight for soil amendment;
3,620 tons in 2015)
1
2/8/2017
2016 NPDES ANNUAL REPORT
CIBODmonthly average (mg/L) = 6.1 mg/L (Limit=25 mg/L)
CBOD (% removal) = 97.1% (Limit= Minimum of 85%)
TSSmonthly average (mg/L) = 7.6 mg/L (Limit = 30 mg/L)
TSS (% removal) = 97.4% (Limit = Minimum of 85%)
Entero (MPN/100m1) = 3 (Limit =Geometric Mean of < 35)
Bioassay (% survival) = 96% (Limit = 11 Sample Median > 90%)
2016 NPDES ANNUAL REPORT
• Completed over 15,000 analytical tests
• Approximately 11 ,000 hours of laboratory
work
• 100 percent compliance with NPDES Permit
requirements
• NACWA Platinum Award — 19th Consecutive
Year!
All
2
2/s/zos7
2016 NPDES ANNUAL REPORT
Acknowledgements:
Environmental Laboratory
Operations Department
Engineering Department
Administration Department
Board of Directors
s r
v'
RECOMMENDATION
_
Heceive the 2Q16 NPDES Annual Report
0,1.vvi;
11 le
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