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California sewage discharges, August 2026
73 records of sewage discharges and water advisories in California dated in August 2026, newest first. Each record keeps the source's own times and wording.
Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-06 09:03 UTC.
Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Cyanobacteria (harmful blue-green algae) can make water unfit for contact; the issuing authority decides when its advisory ends.
| When | Report | Status |
|---|---|---|
| to 6:50 PM PDT | San Francisco City & County Airport Commision-Design & Construction · Parking lot access road behind Bldg. 674 · SSO · 3,250 gallons report · notice · map | ended |
| to 12:58 PM PDT | City of Thousand Oaks · Avenida De Los Arboles · SSO · 174 gallons report · notice · map | ended |
| to 1:15 PM PDT | Sacramento Area Sewer District · “Cordova Creek” · 387356 · SSO · 468 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Kern River · Keysville Beach, Kern River · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tucalota Creek · lake-wide · Algae advisory · volume not reported report · notice · map | listed | |
| to 4:45 PM PDT | City of Palos Verdes Estates · 1490-0150 ([house number removed] Via Coronel, Palos Verdes Estates, CA 90274) · SSO · 400 gallons report · notice · map | ended |
| to 2:40 PM PDT | City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] West Heather Road · SSO · 51 gallons report · notice · map | ended |
| to 1:13 PM PDT | Sausalito-Marin City San District · South West Corner of intersection onramp to US-101N · SSO · 103 gallons report · notice · map | ended |
| to 1:04 PM PDT | Los Angeles County Sanitation Districts · Coyote Creek, Pacific Ocean, San Gabriel River · Wilder Avenue Pumping Plant Force Main · SSO · 505 gallons report · notice · map | ended |
| to 3:40 PM PDT | City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Lindacrest Drive · SSO · 88 gallons report · notice · map | ended |
| to 8:00 PM PDT | City of San Jose Environmental Services · [house number removed] Heartland Way, San Jose, CA 95135 · SSO · 272 gallons report · notice · map | ended |
| to 4:36 PM PDT | City of Irwindale · San Gabriel River · 2168-0314 ([house number removed] Rivergrade Road, Irwindale, CA 91706) · SSO · 500 gallons report · notice · map | ended |
| to 1:30 PM PDT | UC Los Angeles · Franz Hall · SSO · 100 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · “Mill Creek” · abv Lake City (641MIL002) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Twelvemile Creek” · S.f. (642sftlvm) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “East Creek” · above Mosquito Cr. (526ESCAMC) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Owl Creek” · ~1.2mi above Hwy 81 (641OWC157) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Lake Pillsbury · near Pine Point and Sunset Boat Launches · Algae advisory · volume not reported report · notice · map | listed | |
| to Aug 27, 9:19 AM PDT | North San Mateo County Sanitation District · Manhole- 019 Grid D03 · SSO · 69 gallons report · notice · map | ended |
| to 3:32 PM PDT | Fallbrook Public Utility District · WRP [house number removed] Alturas Rd, Fallbrook CA · SSO · 370 gallons report · notice · map | ended |
| to 3:14 PM PDT | Crescent City · [house number removed] Play Street · SSO · 15,045 gallons report · notice · map | ended |
| to 1:55 PM PDT | San Rafael Sanitation District · San Rafael Creek · Bayview St. and D St. · SSO · 940 gallons report · notice · map | ended |
| to 8:40 AM PDT | City of Berkeley (Public Works) · [house number removed] Queens RD · SSO · 50 gallons report · notice · map | reported |
| to 10:00 AM PDT | UC Los Angeles · Covel Loading Dock · SSO · 250 gallons report · notice · map | ended |
| to 9:30 AM PDT | City of Petaluma (PWD) · [house number removed] La Cresta Drive · SSO · 300 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Lake Pillsbury · Resort · Algae advisory · volume not reported report · notice · map | listed | |
| to 1:46 PM PDT | City of San Diego Public Utilities Department · NOT-40201429302 [house number removed] WALDGROVE PL. · SSO · 135 gallons report · notice · map | ended |
| to 11:30 AM PDT | City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Morro Drive · SSO · 264 gallons report · notice · map | ended |
| to 5:00 PM PDT | City of Berkeley (Public Works) · [house number removed] WildCat Canyon at maintenance hole and spilled into unpaved area · SSO · 1,500 gallons report · notice · map | ended |
| to Aug 26, 6:26 PM PDT | City of Oakland Public Works · “Elmhurst creek. (Tidal creek).” · [house number removed] Thermal Street Oakland, Ca. 94605 · SSO · 10,860 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Putah Creek · ~0.75 mi upstream of confluence with Dry Creek (512PCD001) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tuolumne River · NF ~0.6mi below Basin Cr. (536TMR003) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Lake Britton · Lake Britton Picnic Area · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Prado Regional Park” · lake-wide · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Big Bear Lake · Lighthouse observatory · Algae advisory · volume not reported report · notice · map | listed | |
| to 9:50 AM PDT | City of Sacramento Department of Utilities: Combined Wastewater Collection and Treatment System · [house number removed] Marysville Blvd · SSO · 420 gallons report · notice · map | ended |
| to 8:25 PM PDT | Cupertino Sanitary District · Merida Dr. & Kirkbrook Dr., [house number removed] Merida Dr. Saratoga, CA 95070 · SSO · 1,700 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Tulloch Reservoir · Poker Flat · Algae advisory · volume not reported report · notice · map | listed | |
| to 8:45 AM PDT | Lake Hemet Municipal Water District · Lake Hemet Lift Station · SSO · 500 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Eel River · Rio Dell · Algae advisory · volume not reported report · notice · map | listed | |
| to 10:35 AM PDT | City of Manhattan Beach · intersection of Walnut Ave & 31st St · SSO · 780 gallons report · notice · map | ended |
| to 8:30 AM PDT | City of Sacramento Department of Utilities: Combined Wastewater Collection and Treatment System · [house number removed] Marysville Blvd · SSO · 273 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Salmon River · near Somes Bar · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Kidder Creek” · above Adventure Camp · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Navarro River” · Hendy Woods State Park · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Scott River · Indian Scotty Campground · Algae advisory · volume not reported report · notice · map | listed | |
| to 8:38 AM PDT | City of San Jose Environmental Services · Ella Drive and Rahway Drive, San Jose, CA 95111 · SSO · 253 gallons report · notice · map | ended |
| to 1:00 PM PDT | UC Los Angeles · [house number removed] Sepulveda 102 · SSO · 110 gallons report · notice · map | ended |
| to 10:15 AM PDT | CCSF - San Francisco Airport · Gate F16 · SSO · 300 gallons report · notice · map | ended |
| to 10:00 AM PDT | City of Corona (DWP) · [house number removed] Temescal Canyon Rd · SSO · 750 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · “Big Chico Creek” · pending · Algae advisory · volume not reported report · notice · map | reported | |
| California State Water Resources Control Board (FHAB program) · “Mountain Meadows Reservoir” · Dam · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tulloch Reservoir · South Shore Boat Launch and Campground · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tulloch Reservoir · Green Springs Arm · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tulloch Reservoir · Northeast Black Creek Arm (upstream) · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tulloch Reservoir · Cove north of Kiva Swim Area · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Tulloch Reservoir · Kiva Swim Area · Algae advisory · volume not reported report · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Lake Mendocino · Access near Elledge Ranch Rd (114EF3696) · Algae advisory · volume not reported report · notice · map | listed | |
| to 8:10 PM PDT | CCSF - San Francisco Airport · Gate F16 · SSO · 258 gallons report · notice · map | ended |
| to 8:20 PM PDT | City of Oroville · CalTrans Aug 2 · SSO · 90 gallons report · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · “Bell Canyon Reservoir” · Bell Canyon Reservoir · Algae advisory · volume not reported report · notice · map | listed | |
| to 3:23 PM PDT | City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] West Laurelmont Drive · SSO · 87 gallons report · notice · map | ended |
| to 11:00 PM PDT | City of San Mateo · B ST / 12th ave · SSO · 100 gallons · notice · map | ended |
| to 2:04 PM PDT | City of San Carlos · [house number removed] Madera · SSO · 165 gallons · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · Salton Sea · Species Conservation Habitat Ponds · Algae advisory · volume not reported · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · Upper Truckee River · below Portal drive (634UTR600) · Algae advisory · volume not reported · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Cold Stream” · ~0.9mi below Rice Cyn. Cr. (518CDS022) · Algae advisory · volume not reported · notice · map | listed | |
| California State Water Resources Control Board (FHAB program) · “Sagehen Creek” · ~2 km below Research Station (636SGH441) · Algae advisory · volume not reported · notice · map | listed | |
| to Aug 27, 12:40 PM PDT | City of San Luis Obispo · “Alrita Creek” · N11-16 [house number removed] Bahia Ct · SSO · 8 gallons · notice · map | ended |
| to 4:30 PM PDT | City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] West Bellagio Road · SSO · 78 gallons · notice · map | ended |
| California State Water Resources Control Board (FHAB program) · “Combie lake” · Meadow vista · Algae advisory · volume not reported · notice · map | listed | |
| to Aug 3, 4:15 PM PDT | City of Oakland Public Works · [house number removed] Gilbert St. Oakland Ca, · SSO · 71 gallons · notice · map | ended |
| to 7:23 PM PDT | City of Oroville · CalTrans Spill August 1st · SSO · 180 gallons · 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; Surface Water - Freshwater Harmful Algal Blooms, retrieved 2026-11-06 03:07 UTC. A report's record id and times show when you hover or focus its "report" link.