City of Corcoran (CA) Water Quality

City of Corcoran is a large public water system in EPA region 9 that provides tap water for the 93212 zip codes. It has 10 facilities where the water supply was tested for 75 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 12 µg/L. The maximum reported level of Manganese was 1.4 µg/L. There were 2 contamintants found in the City of Corcoran water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (2)

1,2,3-trichloropropane (2)

1,3-butadiene (2)

1,4-dioxane (2)

1-butanol (2)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (2)

1H,1H,2H,2H-perfluorodecane sulfonic acid (2)

1H,1H,2H,2H-perfluorohexane sulfonic acid (2)

1H,1H,2H,2H-perfluorooctane sulfonic acid (2)

2,4-dinitrotoluene (14)

2,6-dinitrotoluene (14)

2-methoxyethanol (2)

2-propen-1-ol (Allyl Alcohol) (2)

4,4'-dichloro dichlorophenyl ethylene (DDE) (14)

4,8-dioxa-3H-perfluorononanoic acid (2)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (2)

alpha-hexachlorocyclohexane (2)

bromochloromethane (Halon 1011) (2)

bromomethane (2)

Butylated Hydroxyanisole (2)

chlorate (4)

chlorodifluoromethane (HCFC-22) (2)

chloromethane (2)

chlorpyrifos (2)

chromium (4)

chromium-6 (4)

cobalt (4)

dimethipin (2)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (14)

ethoprop (2)

Germanium (2)

HAA5 (five regulated haloacetic acids) (4)

HAA6Br (six brominated haloacetic acids) (4)

HAA9 (nine haloacetic acids) (4)

hexafluoropropylene oxide dimer acid (GenX) (2)

lithium (2)

Manganese (2)

methyl-tertiary-butyl-ether (MTBE) (14)

molinate (14)

molybdenum (4)

N-ethyl perfluorooctanesulfonamidoacetic acid (2)

N-methyl perfluorooctanesulfonamidoacetic acid (2)

nitrobenzene (14)

nonafluoro-3,6-dioxaheptanoic acid (2)

o-toluidine (2)

oxyfluorfen (2)

perchlorate (14)

perfluoro(2-ethoxyethane)sulfonic acid (2)

perfluoro-3-methoxypropanoic acid (2)

perfluoro-4-methoxybutanoic acid (2)

perfluorobutanesulfonic acid (4)

perfluorobutanoic acid (2)

perfluorodecanoic acid (2)

perfluorododecanoic acid (2)

perfluoroheptanesulfonic acid (2)

perfluoroheptanoic acid (4)

perfluorohexanesulfonic acid (4)

perfluorohexanoic acid (2)

perfluorononanoic acid (4)

perfluorooctanesulfonic acid (4)

perfluorooctanoic acid (4)

perfluoropentanesulfonic acid (2)

perfluoropentanoic acid (2)

perfluorotetradecanoic acid (2)

perfluorotridecanoic acid (2)

perfluoroundecanoic acid (2)

profenofos (2)

quinoline (2)

s-ethyl-dipropylthiocarbamate (EPTC) (14)

strontium (4)

tebuconazole (2)

terbacil (14)

Total Permethrin (2)

tribufos (2)

vanadium (4)

Sampling Facilities

WTP
Ground Water (GW)

Sample Site "D" - Plant EffluentEntry Point to the Distribution System (EP)
EP #25: WTP Station 1 Eff.Entry Point to the Distribution System (EP)

Stage 2 D/DBPR Distribution System Sites
Ground Water (GW)

27411 Dairy AveDistribution System (DS)
2434 Sherman AveDistribution System (DS)

Distribution System
Ground Water (GW)

Max. Res. Time in Dist. SystemMaximum Residence Time (MR)

WELL 01A - TREATED
Ground Water (GW)

WELL 01A - TREATED 21S/23E-07D02SR (SR)

WELL 02A - TREATED
Ground Water (GW)

WELL 02A - TREATED 21S/23E-07C01SR (SR)

WELL 03A - TREATED
Ground Water (GW)

WELL 03A - TREATED 21S/23E-07D03SR (SR)

WELL 04A - TREATED
Ground Water (GW)

WELL 04A - TREATED 21S/22E-12H01SR (SR)

WELL 10 - CL2 TREATMENT
Ground Water (GW)

WELL 10 - CL2 TREAT 21S/22E-12Q01SR (SR)

WELL 06A - CHLORINATION TREATMENT
Ground Water (GW)

WELL 06A - CHLORINA 21S/23E-07C03SR (SR)

WELL 07A - CHLORINATION TREATMENT
Ground Water (GW)

WELL 07A - CHLORINA 21S/23E-06P02SR (SR)

FAQ

Is City of Corcoran tap water safe to drink?

When was City of Corcoran last tested for water contamination?

The latest water samples were taken on January 24th, 2024.