California / Reports /

California sewage discharges in 2022

230 records of sewage discharges and water advisories in California dated in 2022, newest first. Each record keeps the source's own times and wording; a record from the last three months, or one that sets a status now, also has a page of its own.

By type: Cyanobacteria advisory (harmful blue-green algae)229 · Sanitary sewer overflow (SSO)1

By source: California State Water Resources Control Board (FHAB program)229 · California State Water Resources Control Board (CIWQS Sanitary Sewer System Database)1

2022 in other states: Connecticut, Florida, Maine, Massachusetts, Michigan, New Hampshire, New York, North Carolina, Pennsylvania, Rhode Island, Vermont.

Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-06 09:03 UTC.

Cyanobacteria (harmful blue-green algae) can make water unfit for contact; the issuing authority decides when its advisory ends. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Records in California, 2022, newest first
When	Report	Status
Dec 30 ’22	California State Water Resources Control Board (FHAB program) · “Quarry Lakes” · Shinn Pond · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Lake Havasu State Park north launch ramp · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Lake Havasu State Park PWC Launch · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lopez Lake · Lopez Lake at Ranger dock (310LPZRDK) · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · BLM Facility Dock · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Open Water 6 · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Skiers Island · Algae advisory · volume not reported · notice · map	listed
Dec 9 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Steamboat Cove · Algae advisory · volume not reported · notice · map	listed
Dec 8 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Perris · Near Moreno Beach · Algae advisory · volume not reported · notice · map	lifted
Dec 7 ’22	California State Water Resources Control Board (FHAB program) · Colorado River · Cove near Gene Wash Reserve · Algae advisory · volume not reported · notice · map	listed
Dec 2 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · “Dana Point Harbor” · Dana Point Harbor · Algae advisory · volume not reported · notice · map	lifted
Dec 2 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Oceanside Harbor · at the harbor · Algae advisory · volume not reported · notice · map	lifted
Dec 2 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Pacific Ocean · Oceanside municipal pier · Algae advisory · volume not reported · notice · map	lifted
Nov 28 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Castle Rock · Algae advisory · volume not reported · notice · map	listed
Nov 28 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Body Beach · Algae advisory · volume not reported · notice · map	listed
Nov 23 ’22	California State Water Resources Control Board (FHAB program) · Lake Hemet · northwest shore · Algae advisory · volume not reported · notice · map	listed
Oct 21 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Dock 2 west side of jetty · Algae advisory · volume not reported · notice · map	listed
Oct 21 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Dock 1 east side of jetty · Algae advisory · volume not reported · notice · map	listed
Oct 18 ’22	California State Water Resources Control Board (FHAB program) · Lake Almanor · Mid North Basin · Algae advisory · volume not reported · notice · map	listed
Oct 10 ’22	California State Water Resources Control Board (FHAB program) · “Kaweah River” · White Horse Inn · Algae advisory · volume not reported · notice · map	listed
Oct 7 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Black meadow landing RV park · Algae advisory · volume not reported · notice · map	listed
Oct 6 ’22to Aug 31 ’23	California State Water Resources Control Board (FHAB program) · “Cucamonga-Guasti Regional Park” · two lakes in park · Algae advisory · volume not reported · notice · map	lifted
Sep 27 ’22	California State Water Resources Control Board (FHAB program) · Tuolumne River · Highway 120 Bridge · Algae advisory · volume not reported · notice · map	listed
Sep 27 ’22	California State Water Resources Control Board (FHAB program) · Merced River · Superintendents bridge · Algae advisory · volume not reported · notice · map	listed
Sep 27 ’22	California State Water Resources Control Board (FHAB program) · Tuolumne River · Pate valley · Algae advisory · volume not reported · notice · map	listed
Sep 26 ’22	California State Water Resources Control Board (FHAB program) · “Rae Lakes” · Rae Lake Ranger Station · Algae advisory · volume not reported · notice · map	listed
Sep 26 ’22	California State Water Resources Control Board (FHAB program) · “Rae Lakes” · Rae Lake Ranger Station · Algae advisory · volume not reported · notice · map	listed
Sep 26 ’22	California State Water Resources Control Board (FHAB program) · “Rae Lakes” · Rae Lake Ranger Station · Algae advisory · volume not reported · notice · map	listed
Sep 26 ’22to Oct 26 ’22	California State Water Resources Control Board (FHAB program) · “Rae Lakes” · Rae Lake Ranger Station · Algae advisory · volume not reported · notice · map	lifted
Sep 23 ’22	California State Water Resources Control Board (FHAB program) · Merced River · El Portal · Algae advisory · volume not reported · notice · map	listed
Sep 22 ’22	California State Water Resources Control Board (FHAB program) · “Gunnerson Pond” · Gunnerson Pond · Algae advisory · volume not reported · notice · map	listed
Sep 19 ’22	California State Water Resources Control Board (FHAB program) · “Camden Lake” · near Alister Way (Weir) · Algae advisory · volume not reported · notice · map	listed
Sep 8 ’22	California State Water Resources Control Board (FHAB program) · “Baker Pond” · Baker Pond · Algae advisory · volume not reported · notice · map	listed
Sep 7 ’22	California State Water Resources Control Board (FHAB program) · San Pablo Bay · Tubbs Island · Algae advisory · volume not reported · notice · map	listed
Sep 6 ’22to Oct 28 ’22	California State Water Resources Control Board (FHAB program) · San Francisco Bay · Crown Beach · Algae advisory · volume not reported · notice · map	lifted
Sep 2 ’22	California State Water Resources Control Board (FHAB program) · Sherman Lake · Sherman Island County Park Boat Ramp · Algae advisory · volume not reported · notice · map	listed
Sep 2 ’22to Sep 2 ’22	California State Water Resources Control Board (FHAB program) · Sacramento River · Brannan Island State Recreation Area · Algae advisory · volume not reported · notice · map	lifted
Sep 2 ’22to Sep 2 ’22	California State Water Resources Control Board (FHAB program) · Sacramento River · Sandy Beach · Algae advisory · volume not reported · notice · map	lifted
Sep 2 ’22to Sep 2 ’22	California State Water Resources Control Board (FHAB program) · “Little Potato Slough” · Tower Park Marina · Algae advisory · volume not reported · notice · map	lifted
Sep 2 ’22	California State Water Resources Control Board (FHAB program) · “Yucaipa Regional Park” · Yucaipa Regional Park Lower Lake · Algae advisory · volume not reported · notice · map	listed
Sep 1 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · Mossdale Crossing Regional Park · Algae advisory · volume not reported · notice · map	listed
Aug 31 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Mouth of Upper Truckee River as it enters Lake Tahoe · Algae advisory · volume not reported · notice · map	lifted
Aug 31 ’22to Sep 14 ’22	California State Water Resources Control Board (FHAB program) · Wiest Lake · Weist Lake · Algae advisory · volume not reported · notice · map	lifted
Aug 31 ’22to Oct 30 ’22	California State Water Resources Control Board (FHAB program) · Salton Sea · State Recreation Area · Algae advisory · volume not reported · notice · map	lifted
Aug 30 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Carson Court · Algae advisory · volume not reported · notice · map	listed
Aug 29 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merritt · Lake Merritt Ampitheater · Algae advisory · volume not reported · notice · map	lifted
Aug 29 ’22	California State Water Resources Control Board (FHAB program) · “Stonegate Lake” · Midlake · Algae advisory · volume not reported · notice · map	listed
Aug 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Almanor · East of Lake Almanor West · Algae advisory · volume not reported · notice · map	listed
Aug 29 ’22	California State Water Resources Control Board (FHAB program) · Redwood Creek · Blu Harbor Marina · Algae advisory · volume not reported · notice · map	listed
Aug 29 ’22	California State Water Resources Control Board (FHAB program) · “Granite Park” · Granite Park Dog Park · Algae advisory · volume not reported · notice · map	listed
Aug 29 ’22	California State Water Resources Control Board (FHAB program) · “Southside park” · near Southside Pool · Algae advisory · volume not reported · notice · map	listed
Aug 25 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Tahoe Keys Beach and Harbor · Algae advisory · volume not reported · notice · map	listed
Aug 25 ’22to Oct 14 ’22	California State Water Resources Control Board (FHAB program) · San Francisco Bay · South San Francisco Bay Dumbarton Bridge · Algae advisory · volume not reported · notice · map	lifted
Aug 25 ’22	California State Water Resources Control Board (FHAB program) · San Francisco Bay · Point Richmond Pier · Algae advisory · volume not reported · notice · map	listed
Aug 25 ’22	California State Water Resources Control Board (FHAB program) · San Francisco Bay · Coyote Point Marina · Algae advisory · volume not reported · notice · map	listed
Aug 25 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merritt · Lake Merritt Boating Center · Algae advisory · volume not reported · notice · map	lifted
Aug 24 ’22	California State Water Resources Control Board (FHAB program) · “Heenan Reservoir” · Dam · Algae advisory · volume not reported · notice · map	listed
Aug 24 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Old River · East of Frank's Tract (FT) · Algae advisory · volume not reported · notice · map	lifted
Aug 24 ’22	California State Water Resources Control Board (FHAB program) · “Middle Fork San Joaquin River” · Base of Rainbow Falls · Algae advisory · volume not reported · notice · map	listed
Aug 23 ’22	California State Water Resources Control Board (FHAB program) · “Alder Creek” · Ash Mountain Housing · Algae advisory · volume not reported · notice · map	listed
Aug 23 ’22	California State Water Resources Control Board (FHAB program) · “East Fork Kaweah River” · Last Bridge up Mineral King Rd. · Algae advisory · volume not reported · notice · map	listed
Aug 23 ’22	California State Water Resources Control Board (FHAB program) · “South Fork Kings River” · Muir Rock · Algae advisory · volume not reported · notice · map	listed
Aug 23 ’22	California State Water Resources Control Board (FHAB program) · “South Fork Kaweah River” · South Fork Campground · Algae advisory · volume not reported · notice · map	listed
Aug 21 ’22	California State Water Resources Control Board (FHAB program) · Lake Gregory · San Moritz · Algae advisory · volume not reported · notice · map	listed
Aug 18 ’22	California State Water Resources Control Board (FHAB program) · Lake Hemet · Idyllwild, CA · Algae advisory · volume not reported · notice · map	listed
Aug 17 ’22	California State Water Resources Control Board (FHAB program) · “San Joaquin River” · Dos Reis Regional Park · Algae advisory · volume not reported · notice · map	listed
Aug 16 ’22to Aug 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Havasu Landing Boat Launch Ramp · Algae advisory · volume not reported · notice · map	lifted
Aug 12 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Barton Beach · Algae advisory · volume not reported · notice · map	lifted
Aug 12 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Connolly Beach · Algae advisory · volume not reported · notice · map	lifted
Aug 12 ’22	California State Water Resources Control Board (FHAB program) · Lopez Lake · Lopez Lake · Algae advisory · volume not reported · notice · map	listed
Aug 11 ’22	California State Water Resources Control Board (FHAB program) · “Camden Lake” · S of Camden Park Small Island · Algae advisory · volume not reported · notice · map	listed
Aug 11 ’22	California State Water Resources Control Board (FHAB program) · “Pleasant Valley Reservoir” · Boat Ramp · Algae advisory · volume not reported · notice · map	listed
Aug 10 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · “Mare Island Shoreline Heritage Preserve” · "ordnance pond" at Mare Island Shoreline Heritage Preserve · Algae advisory · volume not reported · notice · map	lifted
Aug 9 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · Lost Isle, Acker Island · Algae advisory · volume not reported · notice · map	listed
Aug 9 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · Dad's Point · Algae advisory · volume not reported · notice · map	listed
Aug 8 ’22to Dec 31 ’23	California State Water Resources Control Board (FHAB program) · “Four Island Lake” · Bear Valley Springs · Algae advisory · volume not reported · notice · map	lifted
Aug 5 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · Prisoner's Point · Algae advisory · volume not reported · notice · map	listed
Aug 5 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · Eddos harbor & RV Park · Algae advisory · volume not reported · notice · map	listed
Aug 4 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · General Creek · General Cr, below loop road · Algae advisory · volume not reported · notice · map	lifted
Aug 4 ’22	California State Water Resources Control Board (FHAB program) · “El Dorado East Regional Park” · Long Beach, CA 90808 · Algae advisory · volume not reported · notice · map	listed
Aug 3 ’22	California State Water Resources Control Board (FHAB program) · New York Slough · Pittsburgh Marina · Algae advisory · volume not reported · notice · map	listed
Aug 1 ’22	California State Water Resources Control Board (FHAB program) · “North Fork Kaweah River” · Near Confluence of Yucca Creek · Algae advisory · volume not reported · notice · map	listed
Aug 1 ’22	California State Water Resources Control Board (FHAB program) · “Marble Fork Kaweah River” · Lodgepole Campground · Algae advisory · volume not reported · notice · map	listed
Jul 28 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Truckee River · Boyington Mill Campground · Algae advisory · volume not reported · notice · map	lifted
Jul 27 ’22to Dec 31 ’23	California State Water Resources Control Board (FHAB program) · “Four Island Lake” · Bear Valley Springs · Algae advisory · volume not reported · notice · map	lifted
Jul 26 ’22	California State Water Resources Control Board (FHAB program) · “Rice Creek” · Rice Creek, North Arm · Algae advisory · volume not reported · notice · map	listed
Jul 25 ’22	California State Water Resources Control Board (FHAB program) · “Kaweah River” · Comfort Inn and Suites Sequoia Kings Canyon · Algae advisory · volume not reported · notice · map	listed
Jul 22 ’22	California State Water Resources Control Board (FHAB program) · “Kaweah River” · Marble Fork of Kaweah River at Potwisha Campground · Algae advisory · volume not reported · notice · map	listed
Jul 22 ’22	California State Water Resources Control Board (FHAB program) · “Kaweah River” · Ash Mountain Visitor Center · Algae advisory · volume not reported · notice · map	listed
Jul 22 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Old River · East of Holland Riverside Marina (D28A) · Algae advisory · volume not reported · notice · map	lifted
Jul 22 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · East of Blind Pt (EZ2_SJR) · Algae advisory · volume not reported · notice · map	listed
Jul 22 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · West of West Island (EZ6_SJR) · Algae advisory · volume not reported · notice · map	listed
Jul 22 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · West of West Island (D12) · Algae advisory · volume not reported · notice · map	listed
Jul 21 ’22	California State Water Resources Control Board (FHAB program) · Lake Crowley · Crowley · Algae advisory · volume not reported · notice · map	listed
Jul 21 ’22	California State Water Resources Control Board (FHAB program) · Pyramid Lake · Vista Del Lago Visitors Center · Algae advisory · volume not reported · notice · map	listed
Jul 20 ’22	California State Water Resources Control Board (FHAB program) · San Diego Creek · San Diego Creek channel at Main Street in City of Irvine · Algae advisory · volume not reported · notice · map	listed
Jul 19 ’22	California State Water Resources Control Board (FHAB program) · “Smith Canal” · Between Dad's Point/Louis Park and Pershing Avenue, Stockton, CA · Algae advisory · volume not reported · notice · map	listed
Jul 19 ’22	California State Water Resources Control Board (FHAB program) · Lake Crowley · Hilton Creek Drainage · Algae advisory · volume not reported · notice · map	listed
Jul 19 ’22	California State Water Resources Control Board (FHAB program) · Lake Crowley · Marina · Algae advisory · volume not reported · notice · map	listed
Jul 15 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · between Calaveras River and Buckley Cove (R4) · Algae advisory · volume not reported · notice · map	listed
Jul 15 ’22	California State Water Resources Control Board (FHAB program) · San Joaquin River · East End of Rough and Ready Island (R2) · Algae advisory · volume not reported · notice · map	listed
Jul 14 ’22	California State Water Resources Control Board (FHAB program) · Santa Ana River · Riverview Recreation Park · Algae advisory · volume not reported · notice · map	listed
Jul 14 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Gilner Point Middle near MWDL2-801BBL701 · Algae advisory · volume not reported · notice · map	listed
Jul 13 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Gallinas Creek · Contempo Marin Clubhouse [house number removed] yosemite rd san rafael · Algae advisory · volume not reported · notice · map	lifted
Jul 12 ’22	California State Water Resources Control Board (FHAB program) · “St. Helena Creek” · At Hwy29/Hilderbrand Dr. (SHC2) · Algae advisory · volume not reported · notice · map	listed
Jul 11 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Duane Boyer Dock (West Ramp)-801BBL706 · Algae advisory · volume not reported · notice · map	listed
Jul 11 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Carol Morrison dock (East Ramp)-801BBL705 · Algae advisory · volume not reported · notice · map	listed
Jul 11 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Big Bear Marina--801BBL704 · Algae advisory · volume not reported · notice · map	listed
Jul 11 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Stanfield Middle near MWDL9-801BBL703 · Algae advisory · volume not reported · notice · map	listed
Jul 11 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Mid Lake near MWDL6-801BBL702 · Algae advisory · volume not reported · notice · map	listed
Jul 7 ’22	California State Water Resources Control Board (FHAB program) · “Mill Creek” · Mill Creek, Forest Falls · Algae advisory · volume not reported · notice · map	listed
Jul 7 ’22	California State Water Resources Control Board (FHAB program) · “Yucaipa Regional Park” · Yucaipa Regional Park Middle Lake - SE corner · Algae advisory · volume not reported · notice · map	listed
Jul 1 ’22	California State Water Resources Control Board (FHAB program) · Forbes Creek · S. Main St. (FC2) · Algae advisory · volume not reported · notice · map	listed
Jul 1 ’22	California State Water Resources Control Board (FHAB program) · “Manning Creek” · (Mc2) · Algae advisory · volume not reported · notice · map	listed
Jul 1 ’22	California State Water Resources Control Board (FHAB program) · “Seiger Canyon Creek” · Seigler Canyon Rd. (SEIG02) · Algae advisory · volume not reported · notice · map	listed
Jun 30 ’22	California State Water Resources Control Board (FHAB program) · “Prado Regional Park” · lake-wide · Algae advisory · volume not reported · notice · map	listed
Jun 30 ’22to Jul 10 ’22	California State Water Resources Control Board (FHAB program) · Lake Havasu · Havasu Landing Boat Launch Ramp · Algae advisory · volume not reported · notice · map	lifted
Jun 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Berryessa · Oaks day use area acorn beach · Algae advisory · volume not reported · notice · map	listed
Jun 29 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Lake Henshaw · Launch Ramp · Algae advisory · volume not reported · notice · map	lifted
Jun 29 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merritt · Lake Merritt at Lakeshore Ave. near Boden Way · Algae advisory · volume not reported · notice · map	lifted
Jun 29 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merritt · Lake Merritt at beach south of Edoff Memorial Bandstand · Algae advisory · volume not reported · notice · map	lifted
Jun 27 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Del Valle · Lake Del Valle East Beach · Algae advisory · volume not reported · notice · map	lifted
Jun 27 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Del Valle · Lake Del Valle West Beach · Algae advisory · volume not reported · notice · map	lifted
Jun 24 ’22to Jan 4	California State Water Resources Control Board (FHAB program) · “Butte Creek” · Butte Creek ~1.5mi below Spring Creek · Algae advisory · volume not reported · notice · map	lifted
Jun 22 ’22	California State Water Resources Control Board (FHAB program) · Indian Creek Reservoir · East Shore Dam near Shack (ICR-CB01) · Algae advisory · volume not reported · notice · map	listed
Jun 22 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Indian Creek Reservoir · South End Nearest Entrance to Campground (ICR-CB04) · Algae advisory · volume not reported · notice · map	lifted
Jun 22 ’22	California State Water Resources Control Board (FHAB program) · Lake Gregory · Swim Beach · Algae advisory · volume not reported · notice · map	listed
Jun 22 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Indian Creek Reservoir · Boat Launch (ICR-CB02) · Algae advisory · volume not reported · notice · map	lifted
Jun 22 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Indian Creek Reservoir · East Shore Dam near Shack (ICR-CB01) · Algae advisory · volume not reported · notice · map	lifted
Jun 22 ’22to Oct 10 ’22	California State Water Resources Control Board (FHAB program) · Salton Sea · Desert Shores · Algae advisory · volume not reported · notice · map	lifted
Jun 17 ’22	California State Water Resources Control Board (FHAB program) · East Drainage Canal · Tanzanite Community Park · Algae advisory · volume not reported · notice · map	listed
Jun 16 ’22	California State Water Resources Control Board (FHAB program) · “Stanton Creek” · Stanton Creek ~1.4mi above Indian Valley Res. · Algae advisory · volume not reported · notice · map	listed
Jun 15 ’22	California State Water Resources Control Board (FHAB program) · Willow Lake · numerous locations in Discovery Bay · Algae advisory · volume not reported · notice · map	listed
Jun 15 ’22	California State Water Resources Control Board (FHAB program) · “Heenan Reservoir” · Loading Zone · Algae advisory · volume not reported · notice · map	listed
Jun 14 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Lily Cove (LC01) · Algae advisory · volume not reported · notice · map	listed
Jun 14 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · San Luis Reservoir · Dinosaur Point Boat Launch · Algae advisory · volume not reported · notice · map	lifted
Jun 14 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Bridgeport Reservoir · North East Corner of Dam · Algae advisory · volume not reported · notice · map	lifted
Jun 14 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Bridgeport Reservoir · RV Park · Algae advisory · volume not reported · notice · map	lifted
Jun 9 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Kings Beach · Algae advisory · volume not reported · notice · map	lifted
Jun 3 ’22	California State Water Resources Control Board (FHAB program) · Silverwood Lake · Silverwood Lake outlet · Algae advisory · volume not reported report · notice · map	to Nov 17, 9:00 PM PST
Jun 3 ’22	California State Water Resources Control Board (FHAB program) · Silverwood Lake · Silverwood Lake Sawpit Swim Beach · Algae advisory · volume not reported report · notice · map	to Nov 17, 9:00 PM PST
Jun 3 ’22	California State Water Resources Control Board (FHAB program) · Silverwood Lake · Silverwood Lake Cleghorn Swim Beach · Algae advisory · volume not reported report · notice · map	to Nov 17, 9:00 PM PST
Jun 3 ’22	California State Water Resources Control Board (FHAB program) · Silverwood Lake · Silverwood Lake outlet · Algae advisory · volume not reported · notice · map	listed
Jun 3 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Kiva Beach · Algae advisory · volume not reported · notice · map	lifted
Jun 3 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · El Dorado Beach · Algae advisory · volume not reported · notice · map	lifted
Jun 3 ’22to Dec 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Tahoe · Regan Beach · Algae advisory · volume not reported · notice · map	lifted
Jun 1 ’22	California State Water Resources Control Board (FHAB program) · O'Neill Forebay · Boat Launch · Algae advisory · volume not reported · notice · map	listed
May 27 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Perris · Moreno Beach · Algae advisory · volume not reported · notice · map	lifted
May 27 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Perris · Bernasconi beach · Algae advisory · volume not reported · notice · map	lifted
May 27 ’22	California State Water Resources Control Board (FHAB program) · Lake Hemet · North east shore · Algae advisory · volume not reported · notice · map	listed
May 26 ’22	California State Water Resources Control Board (FHAB program) · Lopez Lake · at Cottonwood Cove (310LPZCOT) · Algae advisory · volume not reported · notice · map	listed
May 26 ’22	California State Water Resources Control Board (FHAB program) · “Oso Flaco Lake” · Oso Flaco Lake boardwark at first alcove · Algae advisory · volume not reported · notice · map	listed
May 26 ’22	California State Water Resources Control Board (FHAB program) · “Oso Flaco Creek” · Oso Flaco Creek at beach · Algae advisory · volume not reported · notice · map	listed
May 26 ’22	California State Water Resources Control Board (FHAB program) · Castaic Lake · Castaic Lake, outlet (surface) · Algae advisory · volume not reported · notice · map	listed
May 26 ’22	California State Water Resources Control Board (FHAB program) · Castaic Lake · Castaic Lake, boat launch · Algae advisory · volume not reported report · notice · map	to Nov 16, 9:00 PM PST
May 26 ’22	California State Water Resources Control Board (FHAB program) · Pyramid Lake · Pyramid Lake, Vaquero Swim beach · Algae advisory · volume not reported report · notice · map	to Nov 16, 9:00 PM PST
May 26 ’22	California State Water Resources Control Board (FHAB program) · Pyramid Lake · Pyramid Lake, Emigrant Landing Swim beach · Algae advisory · volume not reported report · notice · map	to Nov 16, 9:00 PM PST
May 25 ’22	California State Water Resources Control Board (FHAB program) · Lake Almanor · Almanor Boat Launch North of Prattville · Algae advisory · volume not reported · notice · map	listed
May 25 ’22	California State Water Resources Control Board (FHAB program) · Lake Clementine · Upper Lake Clementine Beach · Algae advisory · volume not reported · notice · map	listed
May 25 ’22	California State Water Resources Control Board (FHAB program) · North Fork American River · Mineral Bar · Algae advisory · volume not reported · notice · map	listed
May 25 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Lake Pillsbury · Resort · Algae advisory · volume not reported · notice · map	lifted
May 24 ’22	California State Water Resources Control Board (FHAB program) · Monterey Bay · Monterey wharf · Algae advisory · volume not reported · notice · map	listed
May 20 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Dam Near MWDL1 · Algae advisory · volume not reported · notice · map	listed
May 20 ’22	California State Water Resources Control Board (FHAB program) · Lake Berryessa · a bit south of the bridge · Algae advisory · volume not reported · notice · map	listed
May 19 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Seal Slough · near Parkside Aquatic Park · Algae advisory · volume not reported · notice · map	lifted
May 19 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · “San Gregorio Creek” · San Gregorio State Beach · Algae advisory · volume not reported · notice · map	lifted
May 19 ’22	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Big Bear Lake-Stanfield Cutoff · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · West of Sulphur Bank Mercury Mine (SBMMEL01) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Rodman Slough (RODS) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Clearlake Keys (KEYS03) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · County Park (CP) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Horseshoe Bend (HB) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Glenhaven (GH) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22	California State Water Resources Control Board (FHAB program) · Cache Creek · Cache Creek Shady Acres (SHADY01) · Algae advisory · volume not reported · notice · map	listed
May 19 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merritt · Near Light Post 82 and Cleveland Cascade at Lake Shore Ave. · Algae advisory · volume not reported · notice · map	lifted
May 17 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Soda Bay Cove (CLV7) · Algae advisory · volume not reported · notice · map	listed
May 16 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · “Cedar Creek” · Cedar Creek at the falls · Algae advisory · volume not reported · notice · map	lifted
May 10 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Jago Bay (JB) · Algae advisory · volume not reported · notice · map	listed
May 10 ’22	California State Water Resources Control Board (FHAB program) · Puddingstone Reservoir · Bonelli RV Resort and Campground · Algae advisory · volume not reported · notice · map	listed
May 10 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Austin Park (AP01) · Algae advisory · volume not reported · notice · map	listed
May 2 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Del Valle · Lake Del Valle · Algae advisory · volume not reported · notice · map	lifted
May 2 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Temescal · East Bay Regional Parks · Algae advisory · volume not reported · notice · map	lifted
May 2 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · “Quarry Lakes” · East Bay Regional Park · Algae advisory · volume not reported · notice · map	lifted
May 1 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · “Huichica Pond 8” · Huichica pond near Napa River · Algae advisory · volume not reported · notice · map	lifted
Apr 25 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · “Quarry Lakes” · Lago Los Osos area · Algae advisory · volume not reported · notice · map	lifted
Apr 8 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Lake Henshaw · end of fishing dock · Algae advisory · volume not reported · notice · map	lifted
Apr 8 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Indian Creek Reservoir · Auxiliary Dam (ICR-CB03) · Algae advisory · volume not reported · notice · map	lifted
Apr 7 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Lake Henshaw · Open water near buoy line and at shoreline · Algae advisory · volume not reported · notice · map	lifted
Apr 5 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · San Luis Reservoir · Pacheco Pumping Plant · Algae advisory · volume not reported · notice · map	lifted
Apr 5 ’22to Jul 1 ’22	California State Water Resources Control Board (FHAB program) · San Luis Reservoir · Basalt Boat Launch · Algae advisory · volume not reported · notice · map	lifted
Mar 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced South ("S") · Algae advisory · volume not reported · notice · map	listed
Mar 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced South ("R") · Algae advisory · volume not reported · notice · map	listed
Mar 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced North ("N") · Algae advisory · volume not reported · notice · map	listed
Mar 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced East ("E") · Algae advisory · volume not reported · notice · map	listed
Mar 29 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced North ("N") · Algae advisory · volume not reported · notice · map	lifted
Mar 29 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced East "E" · Algae advisory · volume not reported · notice · map	lifted
Mar 29 ’22	California State Water Resources Control Board (FHAB program) · Lake Clementine · Lower Lake Clementine · Algae advisory · volume not reported · notice · map	listed
Mar 21 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Pinto Lake · Pinto Lake Boat Launch (PLS5) · Algae advisory · volume not reported · notice · map	lifted
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Lower Arm, Center of the Lake (DWR site CL-3) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Oaks Arm, UCD site (OA-04) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Oaks Arm, Center of the Lake (DWR Site CL-4) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Redbud Park (RED01) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Lakeport 1st Street Ramp (LPTNT) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Keeling Park (KP01) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Elem Indian Colony (ELEM01) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Clearlake Oaks near Water Intake (CLOAKS01) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Buckingham Park (BP) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Tule Boat Launch (The Point) (BVCL6) · Algae advisory · volume not reported · notice · map	listed
Feb 21 ’22	California State Water Resources Control Board (FHAB program) · Clear Lake · Lucerne Harbor Park (LUC01) · Algae advisory · volume not reported · notice · map	listed
Feb 15 ’22	California State Water Resources Control Board (FHAB program) · “Esperanza Creek” · End of Wharregard Rd. · Algae advisory · volume not reported · notice · map	listed
Feb 2 ’22	California State Water Resources Control Board (FHAB program) · “Greenhill Estates” · near Laguna and Lakeshore. South ave 26 and east 99 · Algae advisory · volume not reported · notice · map	listed
Jan 26 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · H. V. Eastman Lake · west boat ramp 2 (539MAD420) · Algae advisory · volume not reported · notice · map	lifted
Jan 26 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · H. V. Eastman Lake · east boat ramp 1 (539MAD400) · Algae advisory · volume not reported · notice · map	lifted
Jan 25 ’22	California State Water Resources Control Board (FHAB program) · Santa Fe Lake · Algae advisory · volume not reported · notice · map	listed
Jan 18 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced South ("CB") · Algae advisory · volume not reported · notice · map	listed
Jan 18 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced South ("BD") · Algae advisory · volume not reported · notice · map	listed
Jan 18 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced North ("SS") · Algae advisory · volume not reported · notice · map	listed
Jan 18 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced North ("NS") · Algae advisory · volume not reported · notice · map	listed
Jan 18 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Merced · Lake Merced North ("SS") · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 30 ’22	California State Water Resources Control Board (FHAB program) · Lake Elsinore · In open water near TMDL LE02 · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Lake Chabot · lake-wide · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 16 ’22	California State Water Resources Control Board (FHAB program) · Iron Gate Reservoir · below Copco Dam · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 31 ’21	California State Water Resources Control Board (FHAB program) · Lake Tahoe · El Dorado Beach · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 31 ’21	California State Water Resources Control Board (FHAB program) · Contra Loma Reservoir · at Regional Park · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 31 ’21	California State Water Resources Control Board (FHAB program) · Lake Elsinore · Near TMDL LE02 · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 31 ’21	California State Water Resources Control Board (FHAB program) · Lake Del Valle · Algae advisory · volume not reported · notice · map	lifted
Jan 7 ’22to Dec 31 ’21	California State Water Resources Control Board (FHAB program) · “Alameda Creek Quarry ponds” · Algae advisory · volume not reported · notice · map	lifted
Jan 3 ’22to Dec 31 ’22	California State Water Resources Control Board (FHAB program) · Contra Loma Reservoir · at Regional Park · Algae advisory · volume not reported · notice · map	lifted
Jan 3 ’22	California State Water Resources Control Board (FHAB program) · Lake Elsinore · Launch Pointe NE dock end · Algae advisory · volume not reported · notice · map	listed
Jan 1 ’22, 12:00 AM PSTto Oct 5, 11:00 AM PDT	San Francisco Public Utilities Commission (SFPUC) · [house number removed] Davidson · SSO · 47,723 gallons · notice · map	ended

Sources: Surface Water - Freshwater Harmful Algal Blooms, retrieved 2026-11-06 03:07 UTC; State Water Board CIWQS Sanitary Sewer System spill data: Cat1-2-3-Spills.txt (nightly flat file), retrieved 2026-11-05 15:08 UTC. A report's record id and times show when you hover or focus its "report" link.