California / Sewer operators /
San Francisco Public Utilities Commission
Sewer utility with combined sewers · California · San Francisco
Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.
Solid dots mark combined sewer outfalls. Ringed dots mark treatment plant outfalls. Small hollow diamonds mark places named in its overflow reports (provisional). A yellow ring with a dashed edge means discharge likely or possible: heavy rain, no report received. Dashed river stretches are estimates of where a discharge travels. Square boat markers mark boat launches listed by OpenBoatLaunch.
- Federal wastewater discharge permit (NPDES)
- CA0037664, CA0037681, CA0038610, 2SSO10193, 2SSO10193-C, 5SSO20046
- Wastewater outlets
- 37 combined sewer outfalls and 4 treatment plant outfalls listed by EPA or state agencies; 3 places named in its own overflow reports (provisional locations) · List
- Waters listed as receiving wastewater
- San Francisco Bay (Central Basin, Islais Creek, Mission Creek, Yosemite Creek, Candlestick Cove, Marina); Pacific Ocean; San Francisco Bay
- Tracked waters
- Islais Creek Channel, CA, Mission Creek, CA, Pacific Ocean, CA, San Francisco Bay, CA
- Discharge records counted
- 3 records · latest
- Total reported volume in these records
- 47,948 gallons across the 3 records that give a volume
These totals reflect the records we track. Missing volumes and gaps in reporting limit comparisons between operators.
Sources: EPA ECHO and the operator and state sources linked below. Counts use the discharge records on this page. Updated 2026-11-06 09:03 UTC.
Public notices and alerts
Pages where San Francisco Public Utilities Commission or the state publishes its notices (check them for an alert sign-up):
- webapps.sfpuc.org/sapps/beachesandbay.html
- www.waterboards.ca.gov/water_issues/programs/sso/docs/data_files/Cat1-2-3-Spills.txt
Its public-notice channels
- Health department page · Required by law
Health officer notice not read
Health and Safety Code 5411.5(a): any person who causes or permits a discharge of sewage in or on waters of the State "shall, as soon as that person has knowledge of the discharge, immediately notify the local health officer or the director of environmental health of the discharge"
- Operator's notice page · Required by a permit (CA0037664)
Read as a feed
NPDES CA0037664 and CA0037681 (San Francisco's combined system), under the CSO Control Policy's ninth minimum control, public notification of CSO occurrences and impacts (59 FR 18688; Clean Water Act 402(q)); the permits' own clause was not read
- Warning lights or signs · Required by a permit (CA0037664)
Notification page not read
NPDES CA0037664 and CA0037681 (San Francisco's combined system), under the CSO Control Policy's ninth minimum control, public notification of CSO occurrences and impacts (59 FR 18688; Clean Water Act 402(q)); the permits' own clause was not read
- Email list · Voluntary
Email list; not read
Source: San Francisco Public Utilities Commission's public notice and alert pages and the state's notification records; DirtyWaterWatch register of public-notice channels and its page monitor.
Report a missing notice or error
Rain and discharges
The NOAA MRMS radar-only rainfall estimate for the 24 hours to the latest hour, read every hour at each outfall from the radar grid. We show a caution when the rain reaches the amount below and no discharge report has arrived.
Permit CA0037664
- Threshold
- 0.1 in of rain in 24 hours (site default: This site's default: 0.1 inch of rain in 24 hours at a combined sewer outfall, applied where the state publishes no rain trigger of its own)
- Radar now
- 0 in in the 24 hours to Nov 6, 2026, 12:00 AM PST
- Forecast
- 0 in forecast in the next 24 hours (NWS forecast issued Nov 5, 2026, 11:36 PM PST)
- Status
- Discharge possible: heavy rain, no report received
Source: NOAA National Weather Service, MRMS radar-only rainfall estimate, valid Nov 6, 2026, 12:00 AM PST, retrieved 2026-11-06 08:57 UTC; threshold: site default; rule: How it works, discharge likely or possible.
Permit CA0037681
- Threshold
- 0.1 in of rain in 24 hours (site default: This site's default: 0.1 inch of rain in 24 hours at a combined sewer outfall, applied where the state publishes no rain trigger of its own)
- Radar now
- 0 in in the 24 hours to Nov 6, 2026, 12:00 AM PST
- Forecast
- 0 in forecast in the next 24 hours (NWS forecast issued Nov 6, 2026, 12:26 AM PST)
- Status
- Discharge possible: heavy rain, no report received
Source: NOAA National Weather Service, MRMS radar-only rainfall estimate, valid Nov 6, 2026, 12:00 AM PST, retrieved 2026-11-06 08:57 UTC; threshold: site default; rule: How it works, discharge likely or possible.
Permit CA0038610
- Threshold
- 0.1 in of rain in 24 hours (site default: This site's default: 0.1 inch of rain in 24 hours at a combined sewer outfall, applied where the state publishes no rain trigger of its own)
- Radar now
- 0 in in the 24 hours to Nov 6, 2026, 12:00 AM PST
- Forecast
- 0 in forecast in the next 24 hours (NWS forecast issued Nov 5, 2026, 11:36 PM PST)
- Status
- Discharge possible: heavy rain, no report received
Source: NOAA National Weather Service, MRMS radar-only rainfall estimate, valid Nov 6, 2026, 12:00 AM PST, retrieved 2026-11-06 08:57 UTC; threshold: site default; rule: How it works, discharge likely or possible.
Wastewater outlets
Outfall: a pipe or outlet where wastewater enters a water body.
37 combined sewer outfalls and 4 treatment plant outfalls listed by EPA or state agencies; 3 places named in its own overflow reports (provisional locations). Discharge likely or possible now at some of them: see Rain and discharges above.
Combined sewer outfalls
37 outfalls · discharge possible now at 37
Discharge possible: heavy rain, no report received at 37 outfalls now: radar rainfall has reached the operator's threshold and no discharge report has arrived (NOAA radar estimate).
- Outfall 009 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 010 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 011 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 013 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 015 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 017 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 018 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 019 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 022 · receiving water in the permit: Mission Creek · Mission Creek, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 023 · receiving water in the permit: Mission Creek · Mission Creek, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 024 · receiving water in the permit: Mission Creek · Mission Creek, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
- Outfall 025 · receiving water in the permit: Mission Creek · Mission Creek, CA · temporarily closed (counted as open) · discharge possible now: heavy rain, no report received
Showing 12 of 37.
Source: U.S. Environmental Protection Agency (EPA) national combined sewer outfall inventory (ECHO) and state outfall layers. Open or closed as EPA's inventory lists it. DirtyWaterWatch links outlets to waters using permit numbers, locations and names.
Treatment plant outfalls
4 outfalls
- Outfall 001 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · status not published
- Outfall 002 · receiving water in the permit: Islais Creek Channel · Islais Creek Channel, CA · status not published
- Outfall 003 · receiving water in the permit: San Francisco Bay · San Francisco Bay, CA · status not published
- Outfall 001 · receiving water in the permit: Pacific Ocean · Pacific Ocean, CA · status not published
Source: U.S. Environmental Protection Agency (EPA) permit records (ICIS-NPDES permitted features): where a treatment plant’s permitted discharge leaves. No national source says whether a plant outfall is open or closed.
Places named in overflow reports (provisional)
3 places · 3 not on the map (reports say the sewage reached no water)
Provisional location from overflow reports. Where the operator's own reports put an overflow: a manhole, pump station or plant. Not an outfall listed in a permit.
- Reported place · 1 overflow report, latest Sep 18, 2026 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 1 overflow report, latest Sep 11, 2026 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 1 overflow report, latest Jan 1, 2022 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
Source: the operator's own overflow reports to the state. DirtyWaterWatch groups reports within 50 metres into one place and finds the water below it with U.S. Geological Survey river maps (NLDI, NHDPlus). Not a permitted outfall; provisional until an official outfall record exists.
Reports and advisories
Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.
| When | Report | Status |
|---|---|---|
| to 11:30 AM PDT | Water not mapped · [house number removed] Mission Bay North · SSO · 75 gallons report · notice · map | ended |
| to 11:50 AM PDT | Water not mapped · [house number removed] Farnsworth · SSO · 150 gallons report · notice · map | ended |
| to Oct 5, 11:00 AM PDT | Water not mapped · [house number removed] Davidson · SSO · 47,723 gallons report · notice · map | ended |
Sources: State Water Board CIWQS Sanitary Sewer System spill data: Cat1-2-3-Spills.txt (nightly flat file), retrieved 2026-11-05 15:08 UTC. A report's record id and times show when you hover or focus its "report" link.
All reports in California by year: 2026 (2 from San Francisco Public Utilities Commission) · 2022 (1 from San Francisco Public Utilities Commission)
Other sewer operators on these waters
- Pacific Ocean, CA: Carmel Area Wastewater District, Carpinteria Sanitary District, Cayucos SD, City of Avalon, City of Escondido, City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation), City of Oceanside, City of Oxnard (Wastewater Division), City of Pismo Beach, City of San Diego Public Utilities Department, City of Santa Barbara (PWD), City of Santa Cruz, Encina Wastewater Authority, Fallbrook Public Utility District, Fort Bragg Municipal Improvement District No. 1, Goleta SD, Humboldt County Resort Improvement District No. 1, Los Angeles County Sanitation Districts, Marine Corps Base, Camp Pendleton, Mendocino City CSD, Mendocino County Water Works District No. 2, Montecito Sanitary District, Monterey One Water, MORRO BAY, CITY OF AND CAYUCOS SANITARY DISTRICT, North San Mateo County Sanitation District, Orange County Sanitation District, San Elijo Joint Powers Authority, San Simeon CSD, Scotts Valley, SEWER AUTHORITY MID-COASTSIDE, South Orange County Wastewater Authority, SOUTH SAN LUIS OBISPO CO SD, United States Navy, US Section, International Boundary and Water Commission: South Bay International WWTP and Tijuana River canyon collectors (transboundary flows from Mexico), Humboldt CSD, Midway City Sanitation District
- San Francisco Bay, CA: Burlingame, City of, and North Bayside System Unit, Central Marin Sanitation Agency, City of Alameda, City of Albany, City of Berkeley (Public Works), City of Emeryville, City of Livermore, Livermore-Amador Valley WMA, East Bay Dischargers Authority, City of Oakland Public Works, City of Palo Alto, City of Piedmont, City of San Leandro, Dublin San Ramon SD, Livermore-Amador Valley WMA, East Bay Dischargers Authority, East Bay Dischargers Authority; Livermore-Amador Valley WMA, East Bay Municipal Utility District, East Bay Regional Park District, Millbrae, City of, and North Bayside System Unit (NBSU), Oro Loma Sanitary District; Castro Valley Sanitary District, San Francisco, City and County of; North Bayside System Unit, Sanitary District No. 5 of Marin County, Sausalito-Marin City Sanitary District, Silicon Valley Clean Water, South San Francisco and San Bruno, Cities of & North Bayside System Unit (NBSU), Stege Sanitary District, U.S. Department of Navy, West County Agency; West County Wastewater District
The last 90 days
No discharge, advisory or caution periods are shown for the waters this sewer operator's reports were placed on in this time span. Check downstream stretches and source coverage.
Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-06 09:03 UTC.
Reported discharges over time
- Discharges reported by San Francisco Public Utilities Commission, last 12 months2December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
- Days with a discharge reported by San Francisco Public Utilities Commission, last 12 months2December 2025 to November 2026A day counts once however many discharges were under way on it.
- Hours with a discharge or advisory status from San Francisco Public Utilities Commission's reports, last 12 months3December 2025 to November 2026Red hours by the map's rules: each discharge to its reported end plus the state's post-discharge period; overlapping hours count once.
- 2026 season with a discharge or advisory status (San Francisco Public Utilities Commission)0.1%May to October 2026Share of May 1 to October 31 hours with red status by the map's rules, of the hours a source covered.
Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater.
Reported discharges per month
3 reported discharges, January 2022 to November 2026.
- Combined sewer overflow
- Sanitary sewer overflow
- Treatment bypass, blended or other
- Incomplete source coverage
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Month | Combined sewer overflow | Sanitary sewer overflow | Treatment bypass, blended or other | Total | Counted from | Coverage |
|---|---|---|---|---|---|---|
| January 2022 | 0 | 1 | 0 | 1 | Source records | Incomplete source coverage |
| February 2022 | 0 | 0 | 0 | 0 | ||
| March 2022 | 0 | 0 | 0 | 0 | ||
| April 2022 | 0 | 0 | 0 | 0 | ||
| May 2022 | 0 | 0 | 0 | 0 | ||
| June 2022 | 0 | 0 | 0 | 0 | ||
| July 2022 | 0 | 0 | 0 | 0 | ||
| August 2022 | 0 | 0 | 0 | 0 | ||
| September 2022 | 0 | 0 | 0 | 0 | ||
| October 2022 | 0 | 0 | 0 | 0 | ||
| November 2022 | 0 | 0 | 0 | 0 | ||
| December 2022 | 0 | 0 | 0 | 0 | ||
| January 2023 | 0 | 0 | 0 | 0 | ||
| February 2023 | 0 | 0 | 0 | 0 | ||
| March 2023 | 0 | 0 | 0 | 0 | ||
| April 2023 | 0 | 0 | 0 | 0 | ||
| May 2023 | 0 | 0 | 0 | 0 | ||
| June 2023 | 0 | 0 | 0 | 0 | ||
| July 2023 | 0 | 0 | 0 | 0 | ||
| August 2023 | 0 | 0 | 0 | 0 | ||
| September 2023 | 0 | 0 | 0 | 0 | ||
| October 2023 | 0 | 0 | 0 | 0 | ||
| November 2023 | 0 | 0 | 0 | 0 | ||
| December 2023 | 0 | 0 | 0 | 0 | ||
| January 2024 | 0 | 0 | 0 | 0 | ||
| February 2024 | 0 | 0 | 0 | 0 | ||
| March 2024 | 0 | 0 | 0 | 0 | ||
| April 2024 | 0 | 0 | 0 | 0 | ||
| May 2024 | 0 | 0 | 0 | 0 | ||
| June 2024 | 0 | 0 | 0 | 0 | ||
| July 2024 | 0 | 0 | 0 | 0 | ||
| August 2024 | 0 | 0 | 0 | 0 | ||
| September 2024 | 0 | 0 | 0 | 0 | ||
| October 2024 | 0 | 0 | 0 | 0 | ||
| November 2024 | 0 | 0 | 0 | 0 | ||
| December 2024 | 0 | 0 | 0 | 0 | ||
| January 2025 | 0 | 0 | 0 | 0 | ||
| February 2025 | 0 | 0 | 0 | 0 | ||
| March 2025 | 0 | 0 | 0 | 0 | ||
| April 2025 | 0 | 0 | 0 | 0 | ||
| May 2025 | 0 | 0 | 0 | 0 | ||
| June 2025 | 0 | 0 | 0 | 0 | ||
| July 2025 | 0 | 0 | 0 | 0 | ||
| August 2025 | 0 | 0 | 0 | 0 | ||
| September 2025 | 0 | 0 | 0 | 0 | ||
| October 2025 | 0 | 0 | 0 | 0 | ||
| November 2025 | 0 | 0 | 0 | 0 | ||
| December 2025 | 0 | 0 | 0 | 0 | ||
| January 2026 | 0 | 0 | 0 | 0 | ||
| February 2026 | 0 | 0 | 0 | 0 | ||
| March 2026 | 0 | 0 | 0 | 0 | ||
| April 2026 | 0 | 0 | 0 | 0 | ||
| May 2026 | 0 | 0 | 0 | 0 | ||
| June 2026 | 0 | 0 | 0 | 0 | ||
| July 2026 | 0 | 0 | 0 | 0 | ||
| August 2026 | 0 | 0 | 0 | 0 | ||
| September 2026 | 0 | 2 | 0 | 2 | Source records | |
| October 2026 | 0 | 0 | 0 | 0 | ||
| November 2026 | 0 | 0 | 0 | 0 |
Hours with a discharge or advisory status per month
Hours when a water had a discharge or advisory status from this sewer operator's reports, under DirtyWaterWatch rules.
- Discharge or advisory reported
- Incomplete source coverage
1 discharge reported to last more than 31 days is counted as 31 days. Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only.
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Month | Hours with a discharge or advisory status | Hours from post-discharge periods | Hours in the month | Coverage |
|---|---|---|---|---|
| January 2022 | 741 | 741 | 744 | Incomplete source coverage |
| February 2022 | 3 | 3 | 672 | |
| March 2022 | 0 | 0 | 744 | |
| April 2022 | 0 | 0 | 720 | |
| May 2022 | 0 | 0 | 744 | |
| June 2022 | 0 | 0 | 720 | |
| July 2022 | 0 | 0 | 744 | |
| August 2022 | 0 | 0 | 744 | |
| September 2022 | 0 | 0 | 720 | |
| October 2022 | 0 | 0 | 744 | |
| November 2022 | 0 | 0 | 720 | |
| December 2022 | 0 | 0 | 744 | |
| January 2023 | 0 | 0 | 744 | |
| February 2023 | 0 | 0 | 672 | |
| March 2023 | 0 | 0 | 744 | |
| April 2023 | 0 | 0 | 720 | |
| May 2023 | 0 | 0 | 744 | |
| June 2023 | 0 | 0 | 720 | |
| July 2023 | 0 | 0 | 744 | |
| August 2023 | 0 | 0 | 744 | |
| September 2023 | 0 | 0 | 720 | |
| October 2023 | 0 | 0 | 744 | |
| November 2023 | 0 | 0 | 720 | |
| December 2023 | 0 | 0 | 744 | |
| January 2024 | 0 | 0 | 744 | |
| February 2024 | 0 | 0 | 696 | |
| March 2024 | 0 | 0 | 744 | |
| April 2024 | 0 | 0 | 720 | |
| May 2024 | 0 | 0 | 744 | |
| June 2024 | 0 | 0 | 720 | |
| July 2024 | 0 | 0 | 744 | |
| August 2024 | 0 | 0 | 744 | |
| September 2024 | 0 | 0 | 720 | |
| October 2024 | 0 | 0 | 744 | |
| November 2024 | 0 | 0 | 720 | |
| December 2024 | 0 | 0 | 744 | |
| January 2025 | 0 | 0 | 744 | |
| February 2025 | 0 | 0 | 672 | |
| March 2025 | 0 | 0 | 744 | |
| April 2025 | 0 | 0 | 720 | |
| May 2025 | 0 | 0 | 744 | |
| June 2025 | 0 | 0 | 720 | |
| July 2025 | 0 | 0 | 744 | |
| August 2025 | 0 | 0 | 744 | |
| September 2025 | 0 | 0 | 720 | |
| October 2025 | 0 | 0 | 744 | |
| November 2025 | 0 | 0 | 720 | |
| December 2025 | 0 | 0 | 744 | |
| January 2026 | 0 | 0 | 744 | |
| February 2026 | 0 | 0 | 672 | |
| March 2026 | 0 | 0 | 744 | |
| April 2026 | 0 | 0 | 720 | |
| May 2026 | 0 | 0 | 744 | |
| June 2026 | 0 | 0 | 720 | |
| July 2026 | 0 | 0 | 744 | |
| August 2026 | 0 | 0 | 744 | |
| September 2026 | 3 | 3 | 720 | |
| October 2026 | 0 | 0 | 744 | |
| November 2026 | 0 | 0 | 125 |
Days with a reported discharge per month
A day counts when any counted discharge was under way on it, from its start to its reported end in Eastern Time; a report with no end counts its start day.
- Incomplete source coverage
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Month | Days with a reported discharge | Coverage |
|---|---|---|
| January 2022 | 1 | Incomplete source coverage |
| February 2022 | 0 | |
| March 2022 | 0 | |
| April 2022 | 0 | |
| May 2022 | 0 | |
| June 2022 | 0 | |
| July 2022 | 0 | |
| August 2022 | 0 | |
| September 2022 | 0 | |
| October 2022 | 0 | |
| November 2022 | 0 | |
| December 2022 | 0 | |
| January 2023 | 0 | |
| February 2023 | 0 | |
| March 2023 | 0 | |
| April 2023 | 0 | |
| May 2023 | 0 | |
| June 2023 | 0 | |
| July 2023 | 0 | |
| August 2023 | 0 | |
| September 2023 | 0 | |
| October 2023 | 0 | |
| November 2023 | 0 | |
| December 2023 | 0 | |
| January 2024 | 0 | |
| February 2024 | 0 | |
| March 2024 | 0 | |
| April 2024 | 0 | |
| May 2024 | 0 | |
| June 2024 | 0 | |
| July 2024 | 0 | |
| August 2024 | 0 | |
| September 2024 | 0 | |
| October 2024 | 0 | |
| November 2024 | 0 | |
| December 2024 | 0 | |
| January 2025 | 0 | |
| February 2025 | 0 | |
| March 2025 | 0 | |
| April 2025 | 0 | |
| May 2025 | 0 | |
| June 2025 | 0 | |
| July 2025 | 0 | |
| August 2025 | 0 | |
| September 2025 | 0 | |
| October 2025 | 0 | |
| November 2025 | 0 | |
| December 2025 | 0 | |
| January 2026 | 0 | |
| February 2026 | 0 | |
| March 2026 | 0 | |
| April 2026 | 0 | |
| May 2026 | 0 | |
| June 2026 | 0 | |
| July 2026 | 0 | |
| August 2026 | 0 | |
| September 2026 | 2 | |
| October 2026 | 0 | |
| November 2026 | 0 |
Reported volume per year
Gallons (axis: K thousand, M million), summed from the 3 reports that gave a volume as a number.
- Incomplete source coverage
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Year | Reported volume, gallons | Reports with a volume | Reports without a volume | Coverage |
|---|---|---|---|---|
| 2022 | 47,723 | 1 | 0 | Incomplete source coverage |
| 2023 | 0 | 0 | 0 | |
| 2024 | 0 | 0 | 0 | |
| 2025 | 0 | 0 | 0 | |
| 2026 | 225 | 2 | 0 |
Hours with a discharge or advisory status per year
Hours with a discharge or advisory status each year under DirtyWaterWatch rules; 2026 to date.
- Discharge or advisory reported
- Incomplete source coverage
1 discharge reported to last more than 31 days is counted as 31 days. Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only.
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Year | Hours with a discharge or advisory status | Share of the year | Coverage |
|---|---|---|---|
| 2022 | 744 | 8.5% | Incomplete source coverage |
| 2023 | 0 | 0.0% | |
| 2024 | 0 | 0.0% | |
| 2025 | 0 | 0.0% | |
| 2026 | 3 | 0.0% |
Reported discharges by calendar month, all years
Every counted discharge report, by the calendar month it began.
Months are summed over every year a tracked source covers; the table gives the number of years behind each month.
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Month | Reported discharges | Years of records |
|---|---|---|
| January | 1 | 5 |
| February | 0 | 5 |
| March | 0 | 5 |
| April | 0 | 5 |
| May | 0 | 5 |
| June | 0 | 5 |
| July | 0 | 5 |
| August | 0 | 5 |
| September | 2 | 5 |
| October | 0 | 5 |
| November | 0 | 5 |
| December | 0 | 4 |
Reported discharges by wastewater outlet
Wastewater outlets with the most tracked discharge records: 3 of 3, all years. Counts depend on reporting coverage and do not measure legal compliance or harm.
Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.
Show table
| Wastewater outlet | Reported discharges |
|---|---|
| [house number removed] Mission Bay North | 1 |
| [house number removed] Farnsworth | 1 |
| [house number removed] Davidson | 1 |
How these charts are counted
We count each discharge once. Where a source publishes notices and confirmed reports, we use confirmed reports for an operator's month when available; otherwise we use notices. We combine revisions and exclude duplicate state reports copied by the U.S. Environmental Protection Agency (EPA). Monthly and yearly totals appear separately. Status hours follow this site's rules. Shaded gaps mean missing coverage, not zero discharges.
- ca-swrcb-ciwqs-spills-flatfile: records from January 1, 2022 to the latest update