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California sewage discharges, May 2026

18 records of sewage discharges and water advisories in California dated in May 2026, newest first. Each record keeps the source's own times and wording.

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

Cyanobacteria (harmful blue-green algae) can make water unfit for contact; the issuing authority decides when its advisory ends.

Records in California, May 2026, newest first
When	Report	Status
May 27	California State Water Resources Control Board (FHAB program) · “Oak St. Ponds (unnamed)” · Large pond (north) · Algae advisory · volume not reported · notice · map	listed
May 18	California State Water Resources Control Board (FHAB program) · San Luis Reservoir · Basalt Boat Launch (lake-wide) · Algae advisory · volume not reported · notice · map	listed
May 14	California State Water Resources Control Board (FHAB program) · “Muskgrave Creek” · 105MSKGRV-Dupe · Algae advisory · volume not reported · notice · map	listed
May 14	California State Water Resources Control Board (FHAB program) · “Muskgrave Creek” · at Taunitalare Rd (105MSKGRV) · Algae advisory · volume not reported · notice · map	listed
May 14	California State Water Resources Control Board (FHAB program) · Puddingstone Reservoir · swim beach · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · “Kit Carson Park Eagle Scout Lake” · Center of Lake · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · “Whelan Lake” · Center of Lake · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · “Ringstrom Unit Marsh” · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · “Rush Creek Marsh Wildlife Area” · Basalt Creek · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · Tucalota Creek · lake-wide · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · Wiest Lake · Southeast corner · Algae advisory · volume not reported · notice · map	listed
May 12	California State Water Resources Control Board (FHAB program) · Tule Lake · Sump 1A boat ramp · Algae advisory · volume not reported · notice · map	listed
May 11	California State Water Resources Control Board (FHAB program) · Lake Havasu · Havasu landing casino · Algae advisory · volume not reported · notice · map	listed
May 7	California State Water Resources Control Board (FHAB program) · “North Table Mountain Ecological Reserve” · Ntmer 4.5 · Algae advisory · volume not reported · notice · map	listed
May 7	California State Water Resources Control Board (FHAB program) · “Legg Lake” · Center lake - Whittier Narrows Recreation Area · Algae advisory · volume not reported · notice · map	listed
May 6	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Boulder Bay (801BBL671) · Algae advisory · volume not reported · notice · map	listed
May 6	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Big Bear Lake, Stanfield cutoff northern end (801BBL673) · Algae advisory · volume not reported · notice · map	listed
May 6	California State Water Resources Control Board (FHAB program) · Big Bear Lake · Big Bear Lake, Pine Oak Lane North Beach (801BBL678) · Algae advisory · volume not reported · notice · map	listed

Sources: Surface Water - Freshwater Harmful Algal Blooms, retrieved 2026-11-06 03:07 UTC. A report's record id and times show when you hover or focus its "report" link.