States /

Reported sewage discharges in California

Updated Nov 6, 2026, 1:03 AM PST. We track 275 waters in California: 0 with a sewage discharge status, 5 with caution after a discharge, and 1 with no confirmed discharge end. Algal bloom advisories are listed on 14. 255 have no current status on their water outline. 51 discharge records dated within the last 30 days.

The law and practice: California law sets no period after a sewage spill during which the water is to be avoided. The rule this site applies, with its source

Source: DirtyWaterWatch statuses from the sources checked automatically, listed below. Updated 2026-11-06 09:03 UTC.

Data and its limits

Dated reports California publishes dated overflow reports; the newest is from Nov 3, 2026.

What the law requires. California puts the duty to warn the public on the county health officer: after a known untreated sewage release the officer must immediately post and close the affected beach until the source is stopped, and keep a telephone hotline of closed and posted beaches (Health and Safety Code 115885, 17 CCR 7958). Whoever causes a sewage discharge must tell the officer immediately (Health and Safety Code 5411.5). Under the State Water Board's Sanitary Sewer Systems General Order (Order WQ 2022-0103-DWQ), a Category 1 spill reaches surface water, or a storm drain to it without being recovered; Category 2 and 3 spills (50 gallons or more) do not. Operators notify the Office of Emergency Services within two hours of a spill of 1,000 gallons or more to the state's waters (Water Code 13271), file a draft report of a Category 1 or 2 spill within three business days, and certify it, with its end and receiving water, within 15 days of the end. No period after a spill is set during which the water should be avoided.

What is published. Each night the Board publishes every Category 1, 2 and 3 spill since June 2023 with the operator, a map point, the start and the volume that reached surface water, and, once certified, the end and receiving water: 3,567 spills on November 4, 2026, 1,284 of them Category 1. In 2026 a Category 1 draft was filed a median of three days after the spill began. San Francisco's sewer utility shows, for each of 20 beach stations, a combined sewer discharge in the last 24 to 72 hours. The Board also compiles the counties' beach postings and closures (Beach Watch).

What is not published. San Francisco's and Sacramento's combined sewer overflows, reported under the cities' own permits, and spills at plants outside the General Order, several of them private. Current beach closures, except in counties that post them online.

Known problems in the data. Most submitted drafts give no end, 91 reports give an end before the start, about one Category 1 report in ten names no water, and the location is often a home's address.

What this site does about it. Category 1 spills are shown to their reported end, then with this site's caution (72 hours; 96 on lakes, ponds and reservoirs). One with no end, or an end before its start, gets caution for 14 days from the report, then hatched "End not confirmed" to 30 days after it began. A report on the Pacific Ocean or San Francisco Bay is shown along a modeled stretch of shore at its point, up to 20 kilometres each way, never as a colour over the whole ocean or bay. Category 2 and 3 spills are counted, not placed on a water. San Francisco's discharge sign is shown as an advisory while the utility shows it. A Beach Watch advisory still open is shown in effect for 14 days from the compilation's latest date, then as not confirmed in effect now, never as lifted. House numbers are removed, spills only on private property are placed to within about 100 metres, and the reports' narratives and certifier are never read.

As of November 6, 2026, of the 462 registered treatment-plant and sewer outfalls in California (closed outfalls aside), 371 (80 percent) are tied to a water record on this site and 91 (20 percent) are not yet (the water they discharge to has no record, or the location given could not be matched); an overflow at one of those appears on the map at its point with no water coloured.

Of this state's reports on this site, 100 percent are dated to the day or better; the newest dated report is from Nov 3, 2026. Coverage: Dated reports.

What stands in the way

The law's only public channels are a hotline and beach signs. Beach Watch runs about seven months behind: on November 4, 2026 its newest advisory was dated March 6, 2026.

0 percent of the sewer operators here have each overflow posted on the web, by the operator or the state (1 of 872).

Notice channels that do not reach the public on the web, by reason (a sewer operator can have several):

No web page877
Signs only2
Blocks automated reading1
Not verified1
Phone only1

The operators or agencies behind these counts are not listed yet.

Public-notice channels

894 channels: 7 monitored, 4 publishing a status now

Where operators and agencies in this state tell the public about sewage discharges: pages, lists and feeds required by law or by a permit, and those kept voluntarily. We read the ones we can and say what we find; a channel we do not read says why.

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Required by law: public-notice channels in this state and what our monitor finds on each
Operator or agency	Channel	What we find
22nd District Agricultural Association	Health department page	Health officer notice not read
Adelanto Public Utility Authority	Health department page	Health officer notice not read
Adin CSD	Health department page	Health officer notice not read
Alameda County Public Works Agency	Health department page	Health officer notice not read
Almonte SD	Health department page	Health officer notice not read
Alpine Springs WD	Health department page	Health officer notice not read
Alto Sanitary District	Health department page	Health officer notice not read
Amador Water Agency	Health department page	Health officer notice not read
Apple Valley Town	Health department page	Health officer notice not read
Arbuckle PUD	Health department page	Health officer notice not read
Arcadia City, Public Works Services Dept	Health department page	Health officer notice not read
Armona CSD	Health department page	Health officer notice not read
Arrowbear Park County Water District	Health department page	Health officer notice not read
Arrowhead Regional Med Center SD	Health department page	Health officer notice not read
Auburn Valley Community Services District	Health department page	Health officer notice not read
Avila Beach CSD	Health department page	Health officer notice not read
Avila Beach CSD and Port San Luis Harbor District	Health department page	Health officer notice not read
Bayshore Sanitary District	Health department page	Health officer notice not read
Bear Valley CSD	Health department page	Health officer notice not read
Bear Valley Water District (Bear Valley, CA)	Health department page	Health officer notice not read
Beckwourth CSA	Health department page	Health officer notice not read
Big Bear Area Regional WW Agency	Health department page	Health officer notice not read
Big Bear City Community Services District	Health department page	Health officer notice not read
Big Pine CSD	Health department page	Health officer notice not read
Big Pine Indian Reservation	Health department page	Health officer notice not read
Bodega Bay PUD	Health department page	Health officer notice not read
Bolinas Community Public Utility District (BCPUD)	Health department page	Health officer notice not read
Boron CSD	Health department page	Health officer notice not read
Borrego Water District	Health department page	Health officer notice not read
Bridgeport PUD	Health department page	Health officer notice not read
Brooktrails Township Community Services District	Health department page	Health officer notice not read
Buena Sanitation District	Health department page	Health officer notice not read
Buena Vista Rancheria of Me-Wuk Indians	Health department page	Health officer notice not read
Burbank Sanitary District	Health department page	Health officer notice not read
Burlingame, City of, and North Bayside System Unit	Health department page	Health officer notice not read
Burney WD	Health department page	Health officer notice not read
Byron Sanitary District	Health department page	Health officer notice not read
Cachuma Lake Recreation Area	Health department page	Health officer notice not read
Calaveras County Water District	Health department page	Health officer notice not read
Calaveras County Water District and Saddle Creek Golf Club, LLC	Health department page	Health officer notice not read
California American Water	Health department page	Health officer notice not read
California City	Health department page	Health officer notice not read
California Department of Corrections and Rehabilitation	Health department page	Health officer notice not read
California Department of Parks and Recreation	Health department page	Health officer notice not read
California Polytechnic State University - San Luis Obispo	Health department page	Health officer notice not read
California State Polytechnic University - Pomona	Health department page	Health officer notice not read
California State Water Board (CIWQS sanitary sewer spill reports)	State alert page	Read as a feed
California Utilities Service	Health department page	Health officer notice not read
Calpella CWD	Health department page	Health officer notice not read
Camarillo Sanitary District	Health department page	Health officer notice not read
Cambria Community Services District	Health department page	Health officer notice not read
Camrosa Water District	Health department page	Health officer notice not read
Carlsbad MWD	Health department page	Health officer notice not read
Carmel Area Wastewater District	Health department page	Health officer notice not read
Carpinteria Sanitary District	Health department page	Health officer notice not read
Caruthers CSD	Health department page	Health officer notice not read
Castro Valley Sanitary District	Health department page	Health officer notice not read
Castroville Water District	Health department page	Health officer notice not read
Cayucos SD	Health department page	Health officer notice not read
CCSF - San Francisco Airport	Health department page	Health officer notice not read
Central Contra Costa Sanitary District	Health department page	Health officer notice not read
Central Marin Sanitation Agency	Health department page	Health officer notice not read
Channel Islands Beach CSD	Health department page	Health officer notice not read
Chester PUD	Health department page	Health officer notice not read
City of Agoura Hills	Health department page	Health officer notice not read
City of Alameda	Health department page	Health officer notice not read
City of Albany	Health department page	Health officer notice not read
City of Alhambra	Health department page	Health officer notice not read
City of Alturas	Health department page	Health officer notice not read
City of Amador	Health department page	Health officer notice not read
City of American Canyon (PWD)	Health department page	Health officer notice not read
City of Anaheim	Health department page	Health officer notice not read
City of Anderson	Health department page	Health officer notice not read
City of Angels	Health department page	Health officer notice not read
City of Antioch	Health department page	Health officer notice not read
City of Arcata	Health department page	Health officer notice not read
City of Arroyo Grande	Health department page	Health officer notice not read
City of Artesia	Health department page	Health officer notice not read
City of Arvin	Health department page	Health officer notice not read
City of Atascadero	Health department page	Health officer notice not read
City of Atwater	Health department page	Health officer notice not read
City of Auburn	Health department page	Health officer notice not read
City of Avalon	Health department page	Health officer notice not read
City of Avenal	Health department page	Health officer notice not read
City of Azusa	Health department page	Health officer notice not read
City of Bakersfield	Health department page	Health officer notice not read
City of Baldwin Park	Health department page	Health officer notice not read
City of Banning	Health department page	Health officer notice not read
City of Barstow	Health department page	Health officer notice not read
City of Beaumont	Health department page	Health officer notice not read
City of Bell Gardens	Health department page	Health officer notice not read
City of Bellflower	Health department page	Health officer notice not read
City of Belmont	Health department page	Health officer notice not read
City of Benicia	Health department page	Health officer notice not read
City of Berkeley (Public Works)	Health department page	Health officer notice not read
City of Beverly Hills (DPW)	Health department page	Health officer notice not read
City of Big Bear Lake	Health department page	Health officer notice not read
City of Biggs	Health department page	Health officer notice not read
City of Bishop	Health department page	Health officer notice not read
City of Blue Lake	Health department page	Health officer notice not read
City of Blythe	Health department page	Health officer notice not read
City of Bradbury	Health department page	Health officer notice not read
City of Brawley	Health department page	Health officer notice not read
City of Brea	Health department page	Health officer notice not read
City of Brentwood	Health department page	Health officer notice not read
City of Brisbane	Health department page	Health officer notice not read
City of Buellton	Health department page	Health officer notice not read
City of Buena Park	Health department page	Health officer notice not read
City of Burbank (DPW)	Health department page	Health officer notice not read
City of Burlingame (PWD)	Health department page	Health officer notice not read
City of Calabasas	Health department page	Health officer notice not read
City of Calexico	Health department page	Health officer notice not read
City of Calipatria	Health department page	Health officer notice not read
City of Calistoga (Public Works Dept.)	Health department page	Health officer notice not read
City of Carson	Health department page	Health officer notice not read
City of Ceres	Health department page	Health officer notice not read
City of Cerritos	Health department page	Health officer notice not read
City of Chico	Health department page	Health officer notice not read
City of Chino	Health department page	Health officer notice not read
City of Chino Hills	Health department page	Health officer notice not read
City of Chowchilla	Health department page	Health officer notice not read
City of Chula Vista	Health department page	Health officer notice not read
City of Claremont	Health department page	Health officer notice not read
City of Clayton	Health department page	Health officer notice not read
City of Cloverdale	Health department page	Health officer notice not read
City of Clovis	Health department page	Health officer notice not read
City of Coalinga	Health department page	Health officer notice not read
City of Colfax	Health department page	Health officer notice not read
City of Colton	Health department page	Health officer notice not read
City of Colusa	Health department page	Health officer notice not read
City of Compton	Health department page	Health officer notice not read
City of Concord	Health department page	Health officer notice not read
City of Corcoran	Health department page	Health officer notice not read
City of Corning	Health department page	Health officer notice not read
City of Corona (DWP)	Health department page	Health officer notice not read
City of Coronado	Health department page	Health officer notice not read
City of Cotati	Health department page	Health officer notice not read
City of Covina	Health department page	Health officer notice not read
City of Cudahy	Health department page	Health officer notice not read
City of Cypress	Health department page	Health officer notice not read
City of Davis	Health department page	Health officer notice not read
City of Del Mar	Health department page	Health officer notice not read
City of Delano	Health department page	Health officer notice not read
City of Diamond Bar	Health department page	Health officer notice not read
City of Dinuba	Health department page	Health officer notice not read
City of Dixon (PWD)	Health department page	Health officer notice not read
City of Dorris	Health department page	Health officer notice not read
City of Dos Palos	Health department page	Health officer notice not read
City of Downey	Health department page	Health officer notice not read
City of Duarte	Health department page	Health officer notice not read
City of Dunsmuir	Health department page	Health officer notice not read
City of El Cajon	Health department page	Health officer notice not read
City of El Centro	Health department page	Health officer notice not read
City of El Monte	Health department page	Health officer notice not read
City of El Paso de Robles	Health department page	Health officer notice not read
City of El Segundo	Health department page	Health officer notice not read
City of Emeryville	Health department page	Health officer notice not read
City of Encinitas	Health department page	Health officer notice not read
City of Escalon	Health department page	Health officer notice not read
City of Escondido	Health department page	Health officer notice not read
City of Etna	Health department page	Health officer notice not read
City of Eureka	Health department page	Health officer notice not read
City of Exeter	Health department page	Health officer notice not read
City of Fairfield	Health department page	Health officer notice not read
City of Farmersville	Health department page	Health officer notice not read
City of Ferndale	Health department page	Health officer notice not read
City of Fillmore	Health department page	Health officer notice not read
City of Firebaugh	Health department page	Health officer notice not read
City of Folsom (Environmental & Water Resources Dept)	Health department page	Health officer notice not read
City of Fontana (DPW)	Health department page	Health officer notice not read
City of Fort Jones	Health department page	Health officer notice not read
City of Fortuna	Health department page	Health officer notice not read
City of Fountain Valley	Health department page	Health officer notice not read
City of Fresno	Health department page	Health officer notice not read
City of Fullerton	Health department page	Health officer notice not read
City of Galt	Health department page	Health officer notice not read
City of Gardena	Health department page	Health officer notice not read
City of Gilroy	Health department page	Health officer notice not read
City of Glendale	Health department page	Health officer notice not read
City of Glendora	Health department page	Health officer notice not read
City of Gonzales	Health department page	Health officer notice not read
City of Grass Valley	Health department page	Health officer notice not read
City of Greenfield	Health department page	Health officer notice not read
City of Gridley	Health department page	Health officer notice not read
City of Grover Beach	Health department page	Health officer notice not read
City of Guadalupe	Health department page	Health officer notice not read
City of Gustine	Health department page	Health officer notice not read
City of Half Moon Bay	Health department page	Health officer notice not read
City of Hawaiian Gardens	Health department page	Health officer notice not read
City of Hawthorne	Health department page	Health officer notice not read
City of Hayward	Health department page	Health officer notice not read
City of Healdsburg	Health department page	Health officer notice not read
City of Hemet	Health department page	Health officer notice not read
City of Hercules	Health department page	Health officer notice not read
City of Hermosa Beach	Health department page	Health officer notice not read
City of Hesperia	Health department page	Health officer notice not read
City of Hidden Hills	Health department page	Health officer notice not read
City of Hollister	Health department page	Health officer notice not read
City of Holtville	Health department page	Health officer notice not read
City of Hughson	Health department page	Health officer notice not read
City of Huntington Beach	Health department page	Health officer notice not read
City of Huntington Park	Health department page	Health officer notice not read
City of Huron	Health department page	Health officer notice not read
City of Imperial	Health department page	Health officer notice not read
City of Imperial Beach	Health department page	Health officer notice not read
City of Industry	Health department page	Health officer notice not read
City of Inglewood	Health department page	Health officer notice not read
City of Ione	Health department page	Health officer notice not read
City of Irwindale	Health department page	Health officer notice not read
City of Isleton	Health department page	Health officer notice not read
City of Jackson	Health department page	Health officer notice not read
City of Kerman	Health department page	Health officer notice not read
City of King	Health department page	Health officer notice not read
City of La Canada Flintridge	Health department page	Health officer notice not read
City of La Habra	Health department page	Health officer notice not read
City of La Habra Heights	Health department page	Health officer notice not read
City of La Mesa	Health department page	Health officer notice not read
City of La Mirada	Health department page	Health officer notice not read
City of La Palma	Health department page	Health officer notice not read
City of La Puente	Health department page	Health officer notice not read
City of La Verne	Health department page	Health officer notice not read
City of Laguna Beach	Health department page	Health officer notice not read
City of Lakeport	Health department page	Health officer notice not read
City of Lakewood	Health department page	Health officer notice not read
City of Lancaster	Health department page	Health officer notice not read
City of Lathrop	Health department page	Health officer notice not read
City of Lawndale	Health department page	Health officer notice not read
City of Lemon Grove	Health department page	Health officer notice not read
City of Lincoln	Health department page	Health officer notice not read
City of Live Oak	Health department page	Health officer notice not read
City of Livermore	Health department page	Health officer notice not read
City of Livermore, Livermore-Amador Valley WMA, East Bay Dischargers Authority	Health department page	Health officer notice not read
City of Livingston	Health department page	Health officer notice not read
City of Lodi	Health department page	Health officer notice not read
City of Loma Linda	Health department page	Health officer notice not read
City of Lomita	Health department page	Health officer notice not read
City of Lompoc	Health department page	Health officer notice not read
City of Los Altos	Health department page	Health officer notice not read
City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation)	Health department page	Health officer notice not read
City of Loyalton	Health department page	Health officer notice not read
City of Lynwood	Health department page	Health officer notice not read
City of Madera	Health department page	Health officer notice not read
City of Manhattan Beach	Health department page	Health officer notice not read
City of Manteca	Health department page	Health officer notice not read
City of Maricopa	Health department page	Health officer notice not read
City of Marysville	Health department page	Health officer notice not read
City of Maywood	Health department page	Health officer notice not read
City of McFarland	Health department page	Health officer notice not read
City of Mendota	Health department page	Health officer notice not read
City of Merced	Health department page	Health officer notice not read
City of Mill Valley	Health department page	Health officer notice not read
City of Millbrae	Health department page	Health officer notice not read
City of Milpitas	Health department page	Health officer notice not read
City of Modesto	Health department page	Health officer notice not read
City of Monrovia	Health department page	Health officer notice not read
City of Montclair	Health department page	Health officer notice not read
City of Montebello	Health department page	Health officer notice not read
City of Monterey	Health department page	Health officer notice not read
City of Monterey Park	Health department page	Health officer notice not read
City of Morgan Hill	Health department page	Health officer notice not read
City of Morro Bay (Administration Services Dept)	Health department page	Health officer notice not read
City of Mountain View	Health department page	Health officer notice not read
City of Mt Shasta	Health department page	Health officer notice not read
City of Needles	Health department page	Health officer notice not read
City of Newman	Health department page	Health officer notice not read
City of Newport Beach	Health department page	Health officer notice not read
City of Norco	Health department page	Health officer notice not read
City of Norwalk	Health department page	Health officer notice not read
City of Oakdale	Health department page	Health officer notice not read
City of Oakland Public Works	Health department page	Health officer notice not read
City of Oceanside	Health department page	Health officer notice not read
City of Ontario	Health department page	Health officer notice not read
City of Orange	Health department page	Health officer notice not read
City of Orange Cove	Health department page	Health officer notice not read
City of Orland	Health department page	Health officer notice not read
City of Oroville	Health department page	Health officer notice not read
City of Oxnard (Wastewater Division)	Health department page	Health officer notice not read
City of Pacific Grove	Health department page	Health officer notice not read
City of Pacifica	Health department page	Health officer notice not read
City of Palm Springs	Health department page	Health officer notice not read
City of Palmdale	Health department page	Health officer notice not read
City of Palo Alto	Health department page	Health officer notice not read
City of Palos Verdes Estates	Health department page	Health officer notice not read
City of Paramount	Health department page	Health officer notice not read
City of Pasadena	Health department page	Health officer notice not read
City of Patterson	Health department page	Health officer notice not read
City of Perris	Health department page	Health officer notice not read
City of Petaluma (PWD)	Health department page	Health officer notice not read
City of Pico Rivera	Health department page	Health officer notice not read
City of Piedmont	Health department page	Health officer notice not read
City of Pinole	Health department page	Health officer notice not read
City of Pismo Beach	Health department page	Health officer notice not read
City of Pittsburg	Health department page	Health officer notice not read
City of Placentia	Health department page	Health officer notice not read
City of Placerville	Health department page	Health officer notice not read
City of Pleasanton	Health department page	Health officer notice not read
City of Plymouth	Health department page	Health officer notice not read
City of Point Arena	Health department page	Health officer notice not read
City of Pomona	Health department page	Health officer notice not read
City of Port Hueneme	Health department page	Health officer notice not read
City of Porterville	Health department page	Health officer notice not read
City of Portola	Health department page	Health officer notice not read
City of Poway	Health department page	Health officer notice not read
City of Rancho Palos Verdes	Health department page	Health officer notice not read
City of Red Bluff	Health department page	Health officer notice not read
City of Redding	Health department page	Health officer notice not read
City of Redlands	Health department page	Health officer notice not read
City of Redondo Beach	Health department page	Health officer notice not read
City of Reedley	Health department page	Health officer notice not read
City of Rialto	Health department page	Health officer notice not read
City of Richardson Bay SD- Tiburon	Health department page	Health officer notice not read
City of Richmond	Health department page	Health officer notice not read
City of Ridgecrest	Health department page	Health officer notice not read
City of Rio Dell	Health department page	Health officer notice not read
City of Rio Vista	Health department page	Health officer notice not read
City of Ripon	Health department page	Health officer notice not read
City of Riverbank	Health department page	Health officer notice not read
City of Riverside	Health department page	Health officer notice not read
City of Rohnert Park	Health department page	Health officer notice not read
City of Rolling Hills Estates	Health department page	Health officer notice not read
City of Rosemead	Health department page	Health officer notice not read
City of Roseville	Health department page	Health officer notice not read
City of Sacramento Department of Utilities: Combined Wastewater Collection and Treatment System	Health department page	Health officer notice not read
City of Salinas	Health department page	Health officer notice not read
City of San Bernardino (Municipal Water Dept)	Health department page	Health officer notice not read
City of San Bruno	Health department page	Health officer notice not read
City of San Carlos	Health department page	Health officer notice not read
City of San Clemente	Health department page	Health officer notice not read
City of San Diego Public Utilities Department	Health department page	Health officer notice not read
City of San Dimas	Health department page	Health officer notice not read
City of San Fernando	Health department page	Health officer notice not read
City of San Gabriel	Health department page	Health officer notice not read
City of San Jacinto	Health department page	Health officer notice not read
City of San Joaquin	Health department page	Health officer notice not read
City of San Jose Environmental Services	Health department page	Health officer notice not read
City of San Juan Bautista	Health department page	Health officer notice not read
City of San Leandro	Health department page	Health officer notice not read
City of San Luis Obispo	Health department page	Health officer notice not read
City of San Marino	Health department page	Health officer notice not read
City of San Mateo	Health department page	Health officer notice not read
City of Sanger	Health department page	Health officer notice not read
City of Santa Ana	Health department page	Health officer notice not read
City of Santa Barbara (PWD)	Health department page	Health officer notice not read
City of Santa Clara	Health department page	Health officer notice not read
City of Santa Clarita	Health department page	Health officer notice not read
City of Santa Cruz	Health department page	Health officer notice not read
City of Santa Fe Springs	Health department page	Health officer notice not read
City of Santa Maria	Health department page	Health officer notice not read
City of Santa Monica	Health department page	Health officer notice not read
City of Santa Paula	Health department page	Health officer notice not read
City of Santa Rosa (Utilities Dept)	Health department page	Health officer notice not read
City of Sausalito	Health department page	Health officer notice not read
City of Seal Beach	Health department page	Health officer notice not read
City of Sebastopol	Health department page	Health officer notice not read
City of Shafter	Health department page	Health officer notice not read
City of Shasta Lake	Health department page	Health officer notice not read
City of Sierra Madre	Health department page	Health officer notice not read
City of Simi Valley	Health department page	Health officer notice not read
City of Solana Beach	Health department page	Health officer notice not read
City of Soledad	Health department page	Health officer notice not read
City of Solvang	Health department page	Health officer notice not read
City of South El Monte	Health department page	Health officer notice not read
City of South Gate	Health department page	Health officer notice not read
City of South Pasadena	Health department page	Health officer notice not read
City of South San Francisco	Health department page	Health officer notice not read
City of St. Helena	Health department page	Health officer notice not read
City of Stanton	Health department page	Health officer notice not read
City of Stockton (MUD)	Health department page	Health officer notice not read
City of Sunnyvale	Health department page	Health officer notice not read
City of Sutter Creek	Health department page	Health officer notice not read
City of Taft	Health department page	Health officer notice not read
City of Tehachapi	Health department page	Health officer notice not read
City of Temple	Health department page	Health officer notice not read
City of Thousand Oaks	Health department page	Health officer notice not read
City of Torrance	Health department page	Health officer notice not read
City of Tracy	Health department page	Health officer notice not read
City of Tulare	Health department page	Health officer notice not read
City of Tulelake	Health department page	Health officer notice not read
City of Turlock	Health department page	Health officer notice not read
City of Ukiah	Health department page	Health officer notice not read
City of Upland	Health department page	Health officer notice not read
City of Vacaville (DPW)	Health department page	Health officer notice not read
City of Ventura	Health department page	Health officer notice not read
City of Vernon	Health department page	Health officer notice not read
City of Victorville	Health department page	Health officer notice not read
City of Villa Park	Health department page	Health officer notice not read
City of Visalia	Health department page	Health officer notice not read
City of Walnut	Health department page	Health officer notice not read
City of Wasco	Health department page	Health officer notice not read
City of Waterford	Health department page	Health officer notice not read
City of Watsonville	Health department page	Health officer notice not read
City of Weed (Dept of Public Works)	Health department page	Health officer notice not read
City of West Covina	Health department page	Health officer notice not read
City of West Hollywood	Health department page	Health officer notice not read
City of West Sacramento	Health department page	Health officer notice not read
City of Westlake Village	Health department page	Health officer notice not read
City of Westmorland	Health department page	Health officer notice not read
City of Wheatland	Health department page	Health officer notice not read
City of Whittier	Health department page	Health officer notice not read
City of Williams	Health department page	Health officer notice not read
City of Willits	Health department page	Health officer notice not read
City of Willows	Health department page	Health officer notice not read
City of Winters	Health department page	Health officer notice not read
City of Woodlake	Health department page	Health officer notice not read
City of Woodland	Health department page	Health officer notice not read
City of Yreka	Health department page	Health officer notice not read
Clearlake Oaks County Water Dist	Health department page	Health officer notice not read
Coachella SD	Health department page	Health officer notice not read
Coachella Valley WD	Health department page	Health officer notice not read
College of the Redwoods	Health department page	Health officer notice not read
Colma Town	Health department page	Health officer notice not read
Colton/San Bernardino Regional Tertiary Treatment & Water Reclamation Authority	Health department page	Health officer notice not read
Commerce City	Health department page	Health officer notice not read
Contra Costa County SD No 6	Health department page	Health officer notice not read
Costa Mesa Sanitary District	Health department page	Health officer notice not read
County health officers: beach closure and posting signs	Warning lights or signs	Notification page not read
County health officers: beach closure hotlines	Health department page	Notification page not read
County of Fresno	Health department page	Health officer notice not read
County of San Luis Obispo Dept. of Public Works	Health department page	Health officer notice not read
County Sanitation District #2-3	Health department page	Health officer notice not read
Covelo CSD	Health department page	Health officer notice not read
Crescent City	Health department page	Health officer notice not read
Crescenta Valley Water District	Health department page	Health officer notice not read
Crestline Sanitation District	Health department page	Health officer notice not read
Crockett Community Services District	Health department page	Health officer notice not read
CSU Bakersfield	Health department page	Health officer notice not read
CSU Dominguez Hills	Health department page	Health officer notice not read
CSU East Bay	Health department page	Health officer notice not read
CSU Fresno	Health department page	Health officer notice not read
CSU Fullerton	Health department page	Health officer notice not read
CSU Humboldt State University (HSU)	Health department page	Health officer notice not read
CSU Long Beach	Health department page	Health officer notice not read
CSU Los Angeles	Health department page	Health officer notice not read
CSU Northridge	Health department page	Health officer notice not read
CSU Sacramento	Health department page	Health officer notice not read
CSU San Bernardino	Health department page	Health officer notice not read
CSU San Diego	Health department page	Health officer notice not read
CSU San Jose	Health department page	Health officer notice not read
CSU San Marcos	Health department page	Health officer notice not read
CSU Sonoma State University	Health department page	Health officer notice not read
CSU Stanislaus	Health department page	Health officer notice not read
Cucamonga Valley Water District	Health department page	Health officer notice not read
Cuesta College	Health department page	Health officer notice not read
Culver City	Health department page	Health officer notice not read
Cupertino Sanitary District	Health department page	Health officer notice not read
Cutler P.U.D.	Health department page	Health officer notice not read
Cutler-Orosi Joint Powers Wastewater Authority	Health department page	Health officer notice not read
Cuyama Community Services District	Health department page	Health officer notice not read
Date Gardens Mobile Home Park wastewater plant (El Centro)	Health department page	Health officer notice not read
Davenport CSD	Health department page	Health officer notice not read
Del Norte County	Health department page	Health officer notice not read
Delhi CWD	Health department page	Health officer notice not read
Delta Diablo	Health department page	Health officer notice not read
Denair CSD	Health department page	Health officer notice not read
Dept. of State Hospitals	Health department page	Health officer notice not read
Desert Lake CSD	Health department page	Health officer notice not read
Desert Water Agency	Health department page	Health officer notice not read
Discovery Bay, Town of, Community Services District	Health department page	Health officer notice not read
Donner Summit Public Utilities District	Health department page	Health officer notice not read
DRY CREEK BAND OF POMO INDIANS	Health department page	Health officer notice not read
Dublin San Ramon SD, Livermore-Amador Valley WMA, East Bay Dischargers Authority	Health department page	Health officer notice not read
Dublin San Ramon Services District (WWTP NPDES & SSO)	Health department page	Health officer notice not read
Earlimart PUD	Health department page	Health officer notice not read
East Bay Dischargers Authority; Livermore-Amador Valley WMA	Health department page	Health officer notice not read
East Bay MUD (CS & SSOs)	Health department page	Health officer notice not read
East Bay Municipal Utility District	Health department page	Health officer notice not read
East Bay Municipal Utility District, Special District No. 1	Health department page	Health officer notice not read
East Bay Regional Park District	Health department page	Health officer notice not read
East County Advanced Water Purification Joint Powers Authority	Health department page	Health officer notice not read
East Niles CSD	Health department page	Health officer notice not read
East Orange County Water District	Health department page	Health officer notice not read
East Orosi Community Service District	Health department page	Health officer notice not read
East Palo Alto Sanitary District	Health department page	Health officer notice not read
East Valley Water District	Health department page	Health officer notice not read
Eastern Municipal Water District	Health department page	Health officer notice not read
Eastern Sierra CSD	Health department page	Health officer notice not read
Edgemont Community Services Dist	Health department page	Health officer notice not read
El Dorado Irrigation District	Health department page	Health officer notice not read
El Toro Water District	Health department page	Health officer notice not read
Elsinore Valley Municipal Water District	Health department page	Health officer notice not read
Embarcadero Municipal Improvement District	Health department page	Health officer notice not read
Emerald Bay Service District	Health department page	Health officer notice not read
Encina Wastewater Authority	Health department page	Health officer notice not read
Esparto CSD	Health department page	Health officer notice not read
Fairbanks Ranch Community Services District	Health department page	Health officer notice not read
Fairfield Suisun Sewer District	Health department page	Health officer notice not read
Fallbrook Public Utility District	Health department page	Health officer notice not read
Fieldbrook CSD	Health department page	Health officer notice not read
Forestville Water District	Health department page	Health officer notice not read
Fort Bragg Municipal Improvement Dist 1	Health department page	Health officer notice not read
Fort Bragg Municipal Improvement District No. 1	Health department page	Health officer notice not read
Foster City PWD	Health department page	Health officer notice not read
Franklin CWD	Health department page	Health officer notice not read
Freedom CSD	Health department page	Health officer notice not read
Garberville Sanitary District	Health department page	Health officer notice not read
Garden Grove Sanitary District	Health department page	Health officer notice not read
Georgetown Divide PUD	Health department page	Health officer notice not read
Gerber-Las Flores CSD	Health department page	Health officer notice not read
Golden State Water Company	Health department page	Health officer notice not read
Goleta SD	Health department page	Health officer notice not read

Required by a permit: public-notice channels in this state and what our monitor finds on each
Operator or agency	Channel	What we find
City of Sacramento (combined system notification) · CA0079111	Operator's notice page	CSO public notification not read
San Francisco Public Utilities Commission (beach map) · CA0037664	Operator's notice page	Read as a feed
San Francisco Public Utilities Commission (beach signs) · CA0037664	Warning lights or signs	Notification page not read

Voluntary: public-notice channels in this state and what our monitor finds on each
Operator or agency	Channel	What we find
Los Angeles County beach water quality	Health department page	Publishes a current status
Orange County beach closures and advisories (ocbeachinfo)	Health department page	Publishes a current status
San Diego Coastkeeper beach advisories	Shared results page	Publishes a current status
San Diego County beach and bay water quality	Health department page	Publishes a current status
Cal OES spill release reports	State alert page	Voluntary page not read
California Beach Watch (beach postings and closures)	State alert page	Read as a feed
California freshwater harmful algal bloom reports (FHAB)	State alert page	Read as a feed
California State Water Board (sanitary sewer spill maps)	State alert page	Voluntary page behind a bot check; not read
Heal the Bay Beach Report Card	Shared results page	Voluntary page unchanged since Nov 4, 2026
San Diego Water Board: Tijuana River transboundary flows	State alert page	State page unchanged since Nov 4, 2026
San Francisco beach water quality results (DataSF)	Shared notification site	Voluntary page unchanged since Nov 4, 2026
San Francisco Public Utilities Commission (beach e-mail alerts)	Email list	Email list; not read
Swim Guide listings for California	Swim Guide listing	Voluntary page shown only in a script app; not read
USIBWC transboundary spill notifications	Email list	Email list; not read
Water Boards e-mail subscriptions	Email list	Email list; not read

Source: DirtyWaterWatch register of public-notice channels and its page monitor, checked 2026-11-06 08:45 UTC.

How each state reports

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.

Zoom in to see the wastewater outlets: solid dots are combined sewer outfalls, ringed dots treatment plant outfalls, small hollow diamonds places named in overflow reports (provisional) and grey dots closed outfalls. A yellow ring with a dashed edge means discharge likely or possible: heavy rain, no report received.

Caution 5 waters

Islais Creek Channel (25)Mission Creek (21)Pacific Ocean (2417)Sacramento River (10)San Francisco Bay (8)

End not confirmed 1 water

Santa Clara River (2)

Algal bloom advisory 14 waters

Castaic Lake (2)H. V. Eastman Lake (12)Hensley Lake (10)Lake Chabot (9)Lake Davis (3)Lake Del Valle (11)Lake Kaweah (1)Lake Temescal (6)Morena Reservoir (2)O'Neill Forebay (3)Pyramid Lake (6)San Luis Reservoir (9)Shadow Cliffs Lake (2)Silverwood Lake (8)

No current status shown 255 waters

Agua Hedionda Creek (1)Alamitos Creek (4)Alamo Canal (0)Alamo Creek (0)Alhambra Wash (1)American River (1)Angels Creek (0)Antelope Lake (1)Arcade Creek (1)Arroyo Calabasas (0)Arroyo Simi (0)Arroyo Viejo (1)Ballona Creek (1)Big Bear Lake (45)Big Grizzly Creek (0)Big Lagoon (3)Black Butte Lake (2)Bloods Creek (0)Boynton Slough (0)Bridgeport Reservoir (10)Brooks Creek (1)Burbank Western Channel (0)Cache Creek (7)Canyon Lake (1)Carquinez Strait (3)Carson Creek (0)Central Canal (0)Chanac Creek (0)Chicken Ranch Slough (1)Chino Creek (0)Chollas Creek (1)Chorro Creek (0)Churn Creek (0)Clear Lake (71)Coarse Gold Creek (0)Colorado River (2)Conejo Creek (0)Contra Loma Reservoir (2)Cottonwood Creek (0)Coyote Creek (1)Deer Creek (0)Deer Creek (0)Delta-Mendota Canal (0)Diamond Valley Lake (3)Diaz Lake (3)Dry Creek (1)Dry Creek (1)Eagle Lake (6)East Creek Slough (0)East Drainage Canal (7)East Park Reservoir (1)East Waddell Creek (0)Eel River (3)Fancher Creek (0)Feather River (0)Folsom Lake (3)Forbes Creek (2)Foster City Lagoon (14)Francis Creek (0)Gallinas Creek (1)General Creek (2)Green Valley Creek (0)Grist Creek (0)Hangtown Creek (0)Hartley Slough (0)Hole Lake (1)Huerhuero Creek (0)Humboldt Bay (1)Hume Lake (4)Indian Creek Reservoir (8)Iron Gate Reservoir (9)Jackson Creek (0)Jensen Slough (0)Kern River (2)Klamath River (11)Klamath River / Hehlkeek 'We-Roy (7)Laguna de Santa Rosa (0)Laguna Lake (6)Lake Almanor (6)Lake Berryessa (4)Lake Britton (10)Lake Cachuma (2)Lake Clementine (3)Lake Crowley (12)Lake Cunningham (3)Lake Elsinore (37)Lake Gregory (6)Lake Havasu (27)Lake Hemet (7)Lake Hennessey (1)Lake Henshaw (8)Lake Hodges (1)Lake Isabella (38)Lake McSwain (1)Lake Mendocino (1)Lake Merced (15)Lake Merritt (6)Lake Miramar (2)Lake Nacimiento (1)Lake Oroville (1)Lake Perris (4)Lake Pillsbury (5)Lake Ralphine (2)Lake San Antonio (6)Lake Shastina (1)Lake Skinner (2)Lake Tahoe (25)Laurel Creek (1)Ledgewood Creek (1)Little Last Chance Creek (1)Lodi Lake (1)Lopez Lake (6)Los Angeles River (2)Lower Otay Reservoir (1)Lurline Creek (0)Mad River (12)Magnolia Creek (1)Magpie Creek (1)Malibu Creek (2)Mare Island Strait (0)Mariposa Creek (0)Mark West Creek (0)Marsh Creek (0)Matadero Creek (0)McLeod Lake (4)Merced River (3)Middle Fork American River (1)Middle Fork Feather River (4)Mill Creek (0)Miller Creek (0)Moffett Channel (0)Mojave River (1)Monterey Bay (7)Mormon Slough (2)Morrison Creek (2)Nacimiento River (1)Napa River (1)New Bullards Bar Reservoir (1)New Melones Lake (1)New River (3)New York Slough (2)North Fork American River (4)North Fork Arroyo Conejo (0)North Fork Calaveras River (0)North Slough (0)North Yuba River (1)Novato Creek (3)Oakland Inner Harbor (0)Oceanside Harbor (1)Old Alameda Creek (0)Old River (8)Orchard Creek (0)Outlet Creek (0)Pajaro River (0)Petaluma River (0)Peyton Slough (1)Pilgrim Creek (1)Pine Mountain Lake (1)Pinto Lake (8)Pit River (0)Pleasant Grove Creek (1)Powell Slough (0)Puddingstone Reservoir (3)Putah Creek (2)Raccoon Strait (0)Rattlesnake Reservoir (0)Red Lake (6)Redwood Creek (1)Richardson Bay (1)Richmond Inner Harbor (0)Rio Hondo (2)Rock Creek (0)Russian River (2)Ruth Lake (1)Salinas River (0)Salmon Creek (3)Salmon Creek (3)Salmon River (1)Salt Creek (0)Salton Sea (46)San Diego Creek (3)San Diego River (2)San Gabriel River (2)San Joaquin River (26)San Juan Creek (1)San Lorenzo Creek (0)San Luis Obispo Bay (0)San Luis Obispo Creek (0)San Marcos Creek (4)San Mateo Creek (2)San Miguelito Creek (0)San Pablo Bay (1)San Rafael Creek (1)Sand Canyon Reservoir (0)Sand Creek (0)Sanford Creek (0)Santa Ana River (5)Santa Barbara Channel (1)Santa Fe Lake (1)Santa Margarita Lake (2)Santa Rosa Creek (0)Sausal Creek (1)Schell Slough (0)Scott River (4)Seal Slough (5)Shasta Lake (11)Sherman Lake (2)Sonoma Creek (2)South Fork Battle Creek (1)South Fork Eel River (10)South Fork Merced River (2)South Yuba River (1)Spanish Creek (0)Steamboat Slough (1)Stone Lagoon (5)Strawberry Creek (1)Strong Ranch Slough (1)Strongs Creek (0)Suisun Bay (0)Sulphur Springs Creek (1)Sutter Creek (1)Sweetwater River (1)Syphon Reservoir (0)Temescal Creek (0)Tomales Bay (2)Trinity River (26)Truckee River (2)Tucalota Creek (2)Tule Canal (0)Tule Lake (6)Tule Lake (1)Tulloch Reservoir (8)Tuolumne River (6)Unnamed stream near Huntington Beach (0)Unnamed stream near Millbrae (0)Unnamed stream near Oxnard (0)Unnamed stream near San Bruno (0)Unnamed stream near San Mateo (0)Unnamed stream near San Pedro (0)Unnamed stream near South San Francisco (0)Unnamed stream near Willows (0)Unnamed tributary to Mill Creek (0)Unnamed tributary to Salinas River (0)Upper Truckee River (6)Ventura River (0)Walnut Creek (2)West Valley Reservoir (1)Whitehouse Creek (1)Whitewater River (0)Wiest Lake (4)Willow Lake (5)Willow Slough Bypass (0)Wolf Creek (0)Yosemite Lake (1)Zanja de Cota Creek (0)

Sewer operators

Get local alerts from a sewer operator: open its page for its public alert link.

872 sewer operators; the list appears as you scroll.

What this page covers

Post-discharge periods and their sources

No period: a water is red only while the discharge is reported ongoing. Under the State Water Board's Statewide Sanitary Sewer Systems General Order (Order WQ 2022-0103-DWQ), a Category 1 spill is a spill of any volume that reaches surface water, or a storm drain that discharges to surface water without being recovered; Category 2 (1,000 gallons or more) and Category 3 (50 to 999 gallons) spills do not reach surface water. The operator must notify the California Office of Emergency Services within 2 hours of a spill of 1,000 gallons or more to waters of the State (Water Code 13271), file a draft report of each Category 1 or 2 spill in the Board's CIWQS database within 3 business days and a certified report, with the spill's end and receiving water, within 15 days of its end; the Board publishes these reports nightly. Category 3 spills are certified monthly, and spills from privately owned laterals are reported voluntarily. Whoever causes a discharge must notify the local health officer immediately (Health and Safety Code 5411.5); after a known untreated sewage release the county health officer must immediately post and close the affected beach until the source of the release is eliminated, and keep a telephone hotline of closed beaches (Health and Safety Code 115885, 17 CCR 7958). This site shows Category 1 spills, marks a reported spill while it runs and applies its own caution after it ends; Category 2 and 3 spills are counted and not placed on a water

Source: Order WQ 2022-0103-DWQ 5.13.1 and Attachment E1 1.1, 3.1-3.3; Cal. Water Code 13271; Cal. Health and Safety Code 5411.5 and 115885; 17 CCR 7958. DirtyWaterWatch applies the period described here.

California's period on the methods page · How long each status lasts, in every state

Sources checked automatically

Beach Watch: Beach Advisories (Postings and Closures) and Beach Water Quality Monitoring · we expect a successful check at least every 24 hours · last successful check 2026-11-06 08:37 UTC
SFPUC San Francisco Beach Water Quality map (combined sewer discharge flags) and getBeaches service · we expect a successful check at least every 24 hours · last successful check 2026-11-06 08:37 UTC
State Water Board CIWQS Sanitary Sewer System spill data: Cat1-2-3-Spills.txt (nightly flat file) · we expect a successful check at least every 24 hours · last successful check 2026-11-06 08:37 UTC
Surface Water - Freshwater Harmful Algal Blooms · we expect a successful check at least every 24 hours · last successful check 2026-11-06 08:37 UTC

5 other public sources for California are listed on the Sources page.

The last 90 days in California

Last 90 days, hour by hour. Red: discharge or advisory reported. Amber: caution. Hatched amber: end not confirmed. Plum: algal bloom advisory. Red or amber with a light line inside: beach advisory or caution. Dotted: monthly report (days with discharge, dates not given). Grey: no current status on the water outline. Purple hatching: a status resting on a source that could not be checked on schedule.

Sewage discharges: 60 periods

50 earlier periods appear as you scroll.

Algal bloom advisories: 1 period

Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-06 09:03 UTC.

Reported discharges in California over time

Discharges affecting California waters, last 12 months168168 affecting California waters: 168 reported by California operators, none arriving from upstreamDecember 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once. Arriving discharges are estimated from modeled downstream reaches.
Days with a discharge affecting California waters, last 12 months92Reported by California operators: 92 · Arriving from other states, estimated: 0 (counted apart; together they need not equal the total)December 2025 to November 2026A day counts once however many discharges were under way on it.
Hours with a discharge or advisory status on at least one California water, last 12 months1,453Reported by California operators: 1,453 · Arriving from other states, estimated: 0December 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 (California waters)32%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. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater. Outfall: a pipe or outlet where wastewater enters a water body.

Reported discharges per month

173 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

Reported discharges per month
Month	Sanitary sewer overflow	Total	Counted from	Coverage
January 2022	1	1	Source records	Incomplete source coverage
February 2022	0	0
March 2022	0	0
April 2022	0	0
May 2022	0	0
June 2022	0	0
July 2022	0	0
August 2022	0	0
September 2022	0	0
October 2022	0	0
November 2022	0	0
December 2022	0	0
January 2023	0	0
February 2023	0	0
March 2023	0	0
April 2023	0	0
May 2023	0	0
June 2023	0	0
July 2023	0	0
August 2023	0	0
September 2023	0	0
October 2023	0	0
November 2023	0	0
December 2023	0	0
January 2024	1	1	Source records
February 2024	0	0
March 2024	0	0
April 2024	1	1	Source records
May 2024	0	0
June 2024	0	0
July 2024	0	0
August 2024	0	0
September 2024	0	0
October 2024	2	2	Source records
November 2024	0	0
December 2024	0	0
January 2025	0	0
February 2025	0	0
March 2025	0	0
April 2025	0	0
May 2025	0	0
June 2025	0	0
July 2025	0	0
August 2025	0	0
September 2025	0	0
October 2025	0	0
November 2025	0	0
December 2025	0	0
January 2026	0	0
February 2026	0	0
March 2026	0	0
April 2026	0	0
May 2026	0	0
June 2026	1	1	Source records
July 2026	1	1	Source records
August 2026	40	40	Source records
September 2026	66	66	Source records
October 2026	55	55	Source records
November 2026	5	5	Source records

Hours with a discharge or advisory status per month

Hours when at least one water in the state had a discharge or advisory status under DirtyWaterWatch rules.

Discharge or advisory reported
Incomplete source coverage

14 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here. 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

Hours with a discharge or advisory status per month
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	1	1	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	1	1	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	2	2	720
July 2026	2	2	744
August 2026	557	557	744
September 2026	641	641	720
October 2026	227	227	744
November 2026	25	25	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

Days with a reported discharge per month
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	1
February 2024	0
March 2024	0
April 2024	1
May 2024	0
June 2024	0
July 2024	0
August 2024	0
September 2024	0
October 2024	2
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	1
July 2026	1
August 2026	30
September 2026	30
October 2026	27
November 2026	3

Reported volume per year

Gallons (axis: K thousand, M million), summed from the 173 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

Reported volume per year
Year	Reported volume, gallons	Reports with a volume	Coverage
2022	47,723	1	Incomplete source coverage
2023	0	0
2024	2,404	4
2025	0	0
2026	824,259	168

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

Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.

Show table

Hours with a discharge or advisory status per year
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	2	0.0%
2025	0	0.0%
2026	1,453	19.6%

Share of the May to October season with a discharge or advisory status

Share of the hours from May 1 to October 31 with a discharge or advisory status under DirtyWaterWatch rules.

Discharge or advisory reported

Source: ca-swrcb-ciwqs-spills-flatfile. Records cover January 1, 2022 to November 6, 2026.

Show table

Share of the May to October season with a discharge or advisory status
Season	Share with a discharge or advisory status	Hours with a discharge or advisory status	Hours a source covered	Hours in the season
2022	0.0%	0	4,416	4,416
2023	0.0%	0	4,416	4,416
2024	0.0%	1	4,416	4,416
2025	0.0%	0	4,416	4,416
2026	32.3%	1,427	4,416	4,416

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

Reported discharges by calendar month, all years
Month	Reported discharges	Years of records
January	2	5
February	0	5
March	0	5
April	1	5
May	0	5
June	1	5
July	1	5
August	40	5
September	66	5
October	57	5
November	5	5
December	0	4

Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 10 of 169, 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

Reported discharges by wastewater outlet
Wastewater outlet	Sewer operator	Reported discharges
North Kern State Prison	California Department of Corrections and Rehabilitation	2
[house number removed] Marysville Blvd	Sacramento City	2
Gate F16	CCSF - San Francisco Airport	2
City Creek Channel at Del Rosa Dr between 4th St and 5th St	East Valley Water District	2
NOT-40201458797 GENESEE AVE & NORTH [house number removed] EXITE RAMP.	San Diego City Metropolitan Wastewater Dept (Public Utilities)	1
[house number removed] North Beverly Glen Place	Los Angeles City Bureau of Sanitation	1
[house number removed] North Vermont Avenue	Los Angeles City Bureau of Sanitation	1
CO E-760B, [house number removed] E St. Charles	San Andreas SD	1
[house number removed] Surfside Avenue/Bethany Curve	Santa Cruz City	1
[house number removed] E Division ST	Long Beach Utilities Department	1
Other outlets (159)		159

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

Reports in California, newest first

The table appears as you scroll.

The newest reports in California
When	Report	Status
Nov 5	California State Water Resources Control Board (FHAB program) · Lake Davis · near Jenkins Point · Algae advisory · volume not reported report · notice · map	to Nov 18, 9:00 PM PST
Nov 5	California State Water Resources Control Board (FHAB program) · “Kelly Lake” · Watsonville · Algae advisory · volume not reported report · notice · map	to Nov 18, 9:00 PM PST
Nov 3, 11:15 AM PST	City of San Diego Public Utilities Department · NOT-40201458797 GENESEE AVE & NORTH [house number removed] EXITE RAMP. · SSO · 266 gallons report · notice · map	reported
Nov 3, 10:38 AM PSTto 11:36 AM PST	City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Beverly Glen Place · SSO · 94 gallons report · notice · map	ended
Nov 1, 2:47 PM PSTto 3:55 PM PST	City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Vermont Avenue · SSO · 138 gallons report · notice · map	ended
Nov 1, 1:30 PM PSTto 3:30 PM PST	San Andreas SD · CO E-760B, [house number removed] E St. Charles · SSO · 800 gallons report · notice · map	ended
Nov 1, 1:00 PM PSTto Nov 2, 1:28 PM PST	City of Santa Cruz · Pacific Ocean · [house number removed] Surfside Avenue/Bethany Curve · SSO · 770 gallons report · notice · map	ended
Oct 31	California State Water Resources Control Board (FHAB program) · “private pond” · corbett canyon rd, arroyo grande 93420 · Algae advisory · volume not reported report · notice · map	to Nov 6, 8:00 PM PST
Oct 30, 5:00 PM PDTto 11:16 PM PDT	Long Beach Utilities Department · [house number removed] E Division ST · SSO · 29,000 gallons report · notice · map	ended
Oct 29, 3:19 PM PDTto 6:19 PM PDT	City of San Diego Public Utilities Department · Not-40201455237 · SSO · 890 gallons report · notice · map	ended
Oct 29, 11:15 AM PDTto 11:20 AM PDT	Moulton Niguel Water District · Lower Boundary Oak · SSO · 200 gallons report · notice · map	ended
Oct 28, 5:08 PM PDTto 6:30 PM PDT	Adelanto Public Utility Authority · Manhole ADEL-SMH313 Intersection Vintage and Stevens · SSO · 404 gallons report · notice · map	ended
Oct 28, 1:45 PM PDTto 2:15 PM PDT	Humboldt CSD · Humboldt Bay, Pacific Ocean · Buhne and Crab - King Salmon, CA · SSO · 45 gallons report · notice · map	ended
Oct 28, 12:00 PM PDT	City of Corning · Marguerite-Divisadero · SSO · 750 gallons report · notice · map	reported
Oct 28, 11:48 AM PDTto 12:20 PM PDT	City of San Mateo · San Mateo Creek · [house number removed] Flores St. · SSO · 170 gallons report · notice · map	ended
Oct 28, 8:50 AM PDTto 4:30 PM PDT	City of San Jose Environmental Services · “Ruby Creek” · [house number removed] Floresta Drive San Jose CA 95148 · SSO · 520 gallons report · notice · map	ended
Oct 27, 12:00 PM PDT	City of La Verne · [house number removed] Puddingstone Dr, Franklin Lift Station · SSO · 1,500 gallons report · notice · map	reported
Oct 27, 5:00 AM PDTto 9:00 AM PDT	South Tahoe PUD · HWY 89 mile marker 19 · SSO · 50 gallons report · notice · map	ended
Oct 27	California State Water Resources Control Board (FHAB program) · Dry Creek · Lower Sacramento bridge and dry creek in galt · Algae advisory · volume not reported report · notice · map	to Nov 9, 8:00 PM PST
Oct 26, 8:20 PM PDTto 9:20 PM PDT	City of Whittier · [house number removed] Rideout Pl · SSO · 60 gallons report · notice · map	ended
Oct 26, 2:00 PM PDTto 9:45 PM PDT	Sacramento Area Sewer District · Strong Ranch Slough · 391435 · SSO · 3,899 gallons report · notice · map	ended
Oct 26, 10:10 AM PDTto 11:03 AM PDT	Town Of Hillsborough · [house number removed] Severn Ln · SSO · 165 gallons report · notice · map	ended
Oct 25, 5:00 PM PDTto 6:35 PM PDT	Midway City Sanitation District · Pacific Ocean · [house number removed] Lafayette St, Westminster, CA · SSO · 330 gallons report · notice · map	ended
Oct 24, 7:30 AM PDTto 9:50 AM PDT	City of Santa Cruz · [house number removed] Morrissey Blvd. · SSO · 980 gallons report · notice · map	ended
Oct 23	California State Water Resources Control Board (FHAB program) · “Lower avocet lake” · Cypress ridge golf ciurse · Algae advisory · volume not reported report · notice · map	reported
Oct 21, 3:04 PM PDTto 3:11 PM PDT	City of Belmont · Laurel Creek · [house number removed] San Juan · SSO · 722 gallons report · notice · map	ended
Oct 21, 1:38 PM PDTto 3:50 PM PDT	Western Municipal Water District · Nandina Ave. & Dauby Ct. · SSO · 7,350 gallons report · notice · map	ended
Oct 21, 10:51 AM PDTto 12:55 PM PDT	Los Angeles County Public Works (Consolidated Sewer Maintenance District) · Rio Hondo · 2121-0277 ([house number removed] Lynd Avenue, Arcadia, CA) Unincorporated County Area · SSO · 500 gallons report · notice · map	ended
Oct 20, 8:00 PM PDTto 10:00 PM PDT	City of Lomita · “Machado Lake” · 1652 ([house number removed] Appian Way, Lomita, CA 90717) · SSO · 900 gallons report · notice · map	ended
Oct 19, 10:50 AM PDTto 11:45 AM PDT	Sacramento Area Sewer District · Chicken Ranch Slough · 391016 · SSO · 179 gallons report · notice · map	ended
Oct 19, 8:41 AM PDTto 12:14 PM PDT	City of San Diego Public Utilities Department · Chollas Creek · NOT- 40201451465 [house number removed] 49TH ST. · SSO · 4,260 gallons report · notice · map	ended
Oct 18, 11:30 AM PDTto 11:30 AM PDT	Sausalito-Marin City San District · Richardson Bay · [house number removed] Woodward Ave · SSO · 972 gallons report · notice · map	ended
Oct 17, 5:00 PM PDT	Ventura Regional Sanitation District · Santa Clara River · [house number removed] Lirio · SSO · 1,486 gallons report · notice · map	to Nov 16, 4:00 PM PST
Oct 17, 12:08 PM PDTto 3:15 PM PDT	Los Angeles County Public Works (Consolidated Sewer Maintenance District) · Los Angeles River · 1861-0140 ([house number removed] S. Eastern Ave, Los Angeles, CA) Unincorporated County Area · SSO · 200 gallons report · notice · map	ended
Oct 17, 8:12 AM PDTto 8:40 AM PDT	City of San Dimas · Walnut Creek · 2387-0195 ([house number removed] Paseo Dorado, San Dimas, CA 91773) · SSO · 50 gallons report · notice · map	ended
Oct 16, 10:50 AM PDTto 1:00 PM PDT	City of Riverside · [house number removed] Roosevelt St · SSO · 510 gallons report · notice · map	ended
Oct 16, 10:15 AM PDTto 12:02 PM PDT	City of San Jose Environmental Services · [house number removed] Bethany Avenue San Jose CA 95132 · SSO · 221 gallons report · notice · map	ended
Oct 16, 7:25 AM PDTto 8:06 AM PDT	US Marine Corps Base Camp Pendleton · Pilgrim Creek · Bldg 14036 Mess Hall · SSO · 205 gallons report · notice · map	ended
Oct 16	California State Water Resources Control Board (FHAB program) · Pinto Lake · Watsonville · Algae advisory · volume not reported report · notice · map	listed
Oct 15, 6:53 PM PDTto 8:30 PM PDT	City of San Diego Public Utilities Department · NOT-40201450576 [house number removed] MISTRAL PL. · SSO · 1,940 gallons report · notice · map	ended
Oct 14, 5:51 PM PDTto Oct 15, 7:24 AM PDT	Rancho Santa Fe Community Services District · “No official name; creek that runs through the RSF Golf Course” · [house number removed] Avenida De Acacias, Rancho Santa Fe, CA. 92067 · SSO · 53,000 gallons report · notice · map	ended
Oct 14, 1:00 PM PDTto 4:03 PM PDT	City of Oakland Public Works · Arroyo Viejo · Grass Valley & Golf Links Rd · SSO · 369 gallons report · notice · map	ended
Oct 14, 8:23 AM PDTto 9:09 AM PDT	City of Beverly Hills (DPW) · [house number removed] Schuyler Road · SSO · 460 gallons report · notice · map	ended
Oct 14	California State Water Resources Control Board (FHAB program) · “Big Chico Creek” · ~1.1km below Ponderosa Way (509BCMCPD) · Algae advisory · volume not reported report · notice · map	reported
Oct 14	California State Water Resources Control Board (FHAB program) · “Big Chico Creek (509BCCFRx)” · Forest Ranch · Algae advisory · volume not reported report · notice · map	reported
Oct 13, 2:22 PM PDTto 3:30 PM PDT	City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Chantilly Road · SSO · 198 gallons report · notice · map	ended
Oct 12, 6:15 PM PDTto 8:05 PM PDT	City of Burlingame (PWD) · [house number removed] Rivera · SSO · 307 gallons report · notice · map	ended
Oct 12, 5:06 PM PDTto Oct 13, 2:01 AM PDT	Long Beach Utilities Department · [house number removed] W. 8th Street Long Beach CA · SSO · 184 gallons report · notice · map	ended
Oct 12, 1:00 PM PDTto Oct 13, 4:45 PM PDT	City of Laguna Beach · [house number removed] Viejo Street · SSO · 6,300 gallons report · notice · map	ended
Oct 12, 11:39 AM PDTto 12:41 PM PDT	City of San Diego Public Utilities Department · “KENSINGTON HILLSIDE OPEN SPACE.” · Not- 40201449424 Aldine Dr. and Fairmount Ave. · SSO · 6,200 gallons report · notice · map	ended
Oct 12, 10:18 AM PDTto Oct 14, 10:25 AM PDT	Treasure Island Development Authority · Clipper Cove and Building 2 · SSO · 15,000 gallons report · notice · map	ended
Oct 11, 7:30 AM PDTto 10:50 AM PDT	City of Sutter Creek · Sutter Creek · [house number removed] Main Street · SSO · 2,000 gallons report · notice · map	ended
Oct 11, 4:30 AM PDTto 5:10 AM PDT	Coachella Valley WD · Mid Valley 1 Sewer Force Main @ Jefferson St. 1500' South of Ave. 52 · SSO · 3,000 gallons report · notice · map	ended
Oct 8, 11:55 AM PDTto 12:25 PM PDT	City of Red Bluff · [house number removed] Lakeside Drive · SSO · 65 gallons report · notice · map	ended
Oct 8, 10:25 AM PDTto 10:27 AM PDT	City of Pacifica · Brooks Creek · Brooks Creek @ rear of [house number removed] Perez Dr. · SSO · 60 gallons report · notice · map	ended
Oct 7, 8:24 PM PDTto 9:18 PM PDT	Long Beach Utilities Department · [house number removed] California Ave. Long Beach CA. · SSO · 840 gallons report · notice · map	ended
Oct 7, 12:00 PM PDTto 11:30 AM PDT	Elsinore Valley Municipal Water District · Mission Trail U-Wash Self Service Car Wash · SSO · 200 gallons report · notice · map	reported
Oct 7, 11:15 AM PDTto 12:20 PM PDT	Sacramento Area Sewer District · Strawberry Creek · 390123 · SSO · 228 gallons report · notice · map	ended
Oct 7, 7:10 AM PDTto 9:49 AM PDT	City of Oceanside · “Dry creek / canyon” · Leisure Village I LS - [house number removed] Cannon Rd. Oceanside, Ca. 92056 · SSO · 19,875 gallons report · notice · map	ended
Oct 6, 1:29 PM PDTto 2:15 PM PDT	City of San Diego Public Utilities Department · Not# 40201446001 West Washington St. · SSO · 2,300 gallons report · notice · map	ended
Oct 5, 6:47 PM PDTto 8:50 PM PDT	City of San Jose Environmental Services · [house number removed] Crosby Ct San Jose CA 95129 · SSO · 52 gallons report · notice · map	ended
Oct 5, 12:00 PM PDTto Oct 6, 7:30 AM PDT	Susanville SD · [house number removed] n. weatherlow st · SSO · 150 gallons report · notice · map	ended
Oct 5, 7:55 AM PDTto 3:00 PM PDT	City of Oakland Public Works · “54th Avenue, and Peralta Courtland, Seminary Creek” · [house number removed] International Blvd. · SSO · 243 gallons report · notice · map	ended
Oct 5	California State Water Resources Control Board (FHAB program) · “Independence Lake” · Independence Lake · Algae advisory · volume not reported report · notice · map	reported
Oct 4, 9:44 AM PDTto 12:00 PM PDT	City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Stanley Hills Drive · SSO · 187 gallons report · notice · map	ended
Oct 3, 1:00 PM PDTto Oct 5, 9:50 AM PDT	Sacramento Area Sewer District · Whitehouse Creek · 389959 · SSO · 258 gallons report · notice · map	ended
Oct 2, 12:45 PM PDTto Oct 6, 11:30 AM PDT	Madera County Public Works Department - Special Districts · [house number removed] Road 274 Bass Lake CA 93604 · SSO · 50 gallons report · notice · map	ended
Oct 2	California State Water Resources Control Board (FHAB program) · Lake Miramar · Miramar Reservoir · Algae advisory · volume not reported report · notice · map	listed
Oct 1, 6:43 PM PDTto 10:37 PM PDT	City of Fairfield · Ledgewood Creek · [house number removed] Pebble Beach Cir. · SSO · 23,400 gallons report · notice · map	ended
Sep 30, 9:20 PM PDTto 9:38 PM PDT	UC Santa Barbara · Manzanita Village Student Housing · SSO · 160 gallons report · notice · map	ended
Sep 30, 7:00 PM PDTto 8:56 PM PDT	Central Contra Costa Sanitary District · [house number removed] Oak Knoll Loop Walnut Creek · SSO · 198 gallons report · notice · map	ended
Sep 30, 12:10 PM PDTto 2:08 PM PDT	Los Angeles County Public Works (Consolidated Sewer Maintenance District) · 1123 - [house number removed] De Ville Way, Malibu, CA 90265 · SSO · 3,000 gallons report · notice · map	ended
Sep 29, 1:50 PM PDTto 4:02 PM PDT	City of San Jose Environmental Services · Blossom Hill Rd and Camden Ave San Jose CA 95124 · SSO · 202 gallons report · notice · map	ended
Sep 29, 1:11 PM PDTto 1:46 PM PDT	City of Chino · 10th Street between Washington Ave and Park Place, Chino, Ca · SSO · 2,625 gallons report · notice · map	ended
Sep 28, 11:20 AM PDTto 1:25 PM PDT	Los Angeles County Public Works (Consolidated Sewer Maintenance District) · Ballona Creek · 1534-0101 (S Sherbourne Dr and W Slauson Ave, Unincorporated Los Angeles, CA) · SSO · 500 gallons report · notice · map	ended
Sep 27, 2:00 PM PDTto 7:15 PM PDT	City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] South Mariposa Avenue · SSO · 829 gallons report · notice · map	ended
Sep 27, 9:15 AM PDTto 11:00 AM PDT	City of San Mateo · [house number removed] parrot dr · SSO · 1,075 gallons report · notice · map	ended
Sep 27, 8:30 AM PDTto 12:00 PM PDT	National City · [house number removed] Highland · SSO · 125 gallons report · notice · map	ended
Sep 27, 8:30 AM PDTto 10:19 AM PDT	City of Glendale · Los Angeles River · [house number removed] Columbia Dr. Glendale Ca. · SSO · 763 gallons report · notice · map	ended
Sep 27, 7:00 AM PDTto 9:30 AM PDT	UC Los Angeles · Evergreen Residential Building Room 105 · SSO · 75 gallons report · notice · map	ended
Sep 26, 2:30 PM PDTto 3:58 PM PDT	Central Contra Costa Sanitary District · [house number removed] Escobar St. Martinez · SSO · 196 gallons report · notice · map	ended
Sep 25, 6:00 PM PDTto 8:25 PM PDT	City of Sebastopol · [house number removed] Washington Ave, Sebastopol · SSO · 66 gallons report · notice · map	ended
Sep 25, 9:09 AM PDTto 10:25 AM PDT	City of Los Angeles LA Sanitation and Environment (Bureau of Sanitation) · [house number removed] North Fredonia Drive · SSO · 309 gallons report · notice · map	ended
Sep 24, 10:40 PM PDTto 10:45 PM PDT	Los Angeles County Sanitation Districts · Trunk A Sewer, MH 14 0080 (District 14) · SSO · 80 gallons report · notice · map	ended
Sep 24, 8:25 PM PDTto 11:00 PM PDT	City of West Hollywood · “Ballona Creek, and Santa Monica Bay” · 1583-0100 ([house number removed] Santa Monica Blvd, West Hollywood, CA 90046) · SSO · 1,550 gallons report · notice · map	ended
Sep 24, 12:00 PM PDTto 1:37 PM PDT	City of Oakland Public Works · Sausal Creek · [house number removed] Saroni Drive, Oakland Ca · SSO · 485 gallons report · notice · map	ended
Sep 24, 8:00 AM PDTto 8:04 AM PDT	US Marine Corps Base Camp Pendleton · [house number removed] Old Hwy 1 Force Main · SSO · 960 gallons report · notice · map	ended
Sep 24	California State Water Resources Control Board (FHAB program) · South Fork Eel River · Standish-Hickey · Algae advisory · volume not reported report · notice · map	listed
Sep 23, 4:15 PM PDTto Sep 24, 7:00 AM PDT	City of Hermosa Beach · [house number removed] Pacific Coast Highway · SSO · 400 gallons report · notice · map	ended
Sep 22, 9:48 AM PDTto 10:05 AM PDT	City of La Mesa · [house number removed] Maryland Ave · SSO · 85 gallons report · notice · map	ended
Sep 22	California State Water Resources Control Board (FHAB program) · Magnolia Creek · lake-wide · Algae advisory · volume not reported report · notice · map	listed
Sep 21, 3:30 PM PDTto 6:35 PM PDT	City of San Jose Environmental Services · [house number removed] Bobbie Ave, San Jose, CA 95130 · SSO · 8,396 gallons report · notice · map	ended
Sep 21, 12:29 PM PDTto 1:30 PM PDT	UC Santa Cruz · Oakes College Dorm 4, SSMH87-1-2 · SSO · 100 gallons report · notice · map	ended
Sep 21, 5:00 AM PDTto 2:05 PM PDT	Sacramento Area Sewer District · Arcade Creek · 388707 · SSO · 223 gallons report · notice · map	ended
Sep 20, 9:30 PM PDTto Sep 21, 9:00 AM PDT	City of Santa Monica · [house number removed] Michigan Ave · SSO · 479 gallons report · notice · map	ended
Sep 20, 4:24 PM PDTto 7:30 PM PDT	Sonoma County Water Agency (SCWA) · “Fryer Creek” · [house number removed] 5th St. West (MH136-119) · SSO · 2,790 gallons report · notice · map	ended
Sep 20, 12:01 PM PDTto 11:40 PM PDT	City of Rio Vista · Sacramento River · River Rd. Lift Station · SSO · 4,000 gallons report · notice · map	ended
Sep 18, 9:35 AM PDTto 10:29 AM PDT	North San Mateo County Sanitation District · [house number removed] Southgate at rear of building in the alley way · SSO · 159 gallons report · notice · map	ended
Sep 18, 9:15 AM PDTto 11:30 AM PDT	San Francisco Public Utilities Commission (SFPUC) · [house number removed] Mission Bay North · SSO · 75 gallons report · notice · map	ended
Sep 18	California State Water Resources Control Board (FHAB program) · Klamath River / Hehlkeek 'We-Roy · Campground Sandy Boat Ramp (R-1) · Algae advisory · volume not reported report · notice · map	listed

Showing the newest 100 of 4,017 reports; all reports: by year · CSV

All reports in California by year

2026 (678 records) · 2025 (1,967 records) · 2024 (357 records) · 2023 (90 records) · 2022 (230 records) · 2021 (263 records) · 2020 (202 records) · 2019 (94 records) · 2018 (54 records) · 2017 (51 records) · 2016 (31 records)

By town

Towns along the waters we track and the towns sewer operators serve, A to Z.

702 towns; the list appears as you scroll.

Other states we track: Connecticut, District of Columbia, Florida, Georgia, Illinois, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, Vermont, Virginia, Washington.

Reported sewage discharges in California

Data and its limits

What stands in the way

Public-notice channels

Required by law: 876

Required by a permit: 3

Voluntary: 15

Caution 5 waters

End not confirmed 1 water

Algal bloom advisory 14 waters

No current status shown 255 waters

Sewer operators

What this page covers

Post-discharge periods and their sources

Sources checked automatically

The last 90 days in California

Sewage discharges: 60 periods

Algal bloom advisories: 1 period

Reported discharges in California over time

Reported discharges per month

Hours with a discharge or advisory status per month

Days with a reported discharge per month

Reported volume per year

Hours with a discharge or advisory status per year

Share of the May to October season with a discharge or advisory status

Reported discharges by calendar month, all years

Reported discharges by wastewater outlet

Reports in California, newest first

All reports in California by year

By town