City of Fairfield (CA) Water Quality

City of Fairfield is a large public water system in EPA region 9 that provides tap water for the 94533, 94534 zip codes. It has 8 facilities where the water supply was tested for 85 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 34.41 µg/L. The maximum reported level of Manganese was 1.8 µg/L. There were 2 contamintants found in the City of Fairfield water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (8)

1,2,3-trichloropropane (8)

1,3-butadiene (8)

1,4-dioxane (8)

1-butanol (8)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (8)

17-alpha-ethynylestradiol (8)

17-beta-estradiol (8)

1H,1H,2H,2H-perfluorodecane sulfonic acid (8)

1H,1H,2H,2H-perfluorohexane sulfonic acid (8)

1H,1H,2H,2H-perfluorooctane sulfonic acid (8)

2,4-dinitrotoluene (11)

2,6-dinitrotoluene (11)

2-methoxyethanol (8)

2-propen-1-ol (Allyl Alcohol) (8)

4,4'-dichloro dichlorophenyl ethylene (DDE) (11)

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

4-androstene-3,17-dione (8)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (8)

alpha-hexachlorocyclohexane (8)

anatoxin-a (15)

bromochloromethane (Halon 1011) (8)

bromomethane (8)

Butylated Hydroxyanisole (8)

chlorate (16)

chlorodifluoromethane (HCFC-22) (8)

chloromethane (8)

chlorpyrifos (8)

chromium (16)

chromium-6 (16)

cobalt (16)

cylindrospermopsin (15)

dimethipin (8)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (11)

equilin (8)

estriol (8)

estrone (8)

ethoprop (8)

Germanium (8)

HAA5 (five regulated haloacetic acids) (32)

HAA6Br (six brominated haloacetic acids) (32)

HAA9 (nine haloacetic acids) (32)

hexafluoropropylene oxide dimer acid (GenX) (8)

lithium (8)

Manganese (8)

methyl-tertiary-butyl-ether (MTBE) (15)

molinate (11)

molybdenum (16)

N-ethyl perfluorooctanesulfonamidoacetic acid (8)

N-methyl perfluorooctanesulfonamidoacetic acid (8)

nitrobenzene (15)

nonafluoro-3,6-dioxaheptanoic acid (8)

o-toluidine (8)

oxyfluorfen (8)

perchlorate (15)

perfluoro(2-ethoxyethane)sulfonic acid (8)

perfluoro-3-methoxypropanoic acid (8)

perfluoro-4-methoxybutanoic acid (8)

perfluorobutanesulfonic acid (14)

perfluorobutanoic acid (8)

perfluorodecanoic acid (8)

perfluorododecanoic acid (8)

perfluoroheptanesulfonic acid (8)

perfluoroheptanoic acid (14)

perfluorohexanesulfonic acid (14)

perfluorohexanoic acid (8)

perfluorononanoic acid (14)

perfluorooctanesulfonic acid (14)

perfluorooctanoic acid (14)

perfluoropentanesulfonic acid (8)

perfluoropentanoic acid (8)

perfluorotetradecanoic acid (8)

perfluorotridecanoic acid (8)

perfluoroundecanoic acid (8)

profenofos (8)

quinoline (8)

s-ethyl-dipropylthiocarbamate (EPTC) (11)

strontium (16)

tebuconazole (8)

terbacil (11)

testosterone (8)

total microcystins (16)

Total Permethrin (8)

tribufos (8)

vanadium (16)

Sampling Facilities

North Bay Regional WTP
Surface Water (SW)

EP #6 - NBR Finished WaterEntry Point to the Distribution System (EP)

Waterman WTP
Surface Water (SW)

EP #7 - Waterman Finished WaterEntry Point to the Distribution System (EP)

Distribution System - DBPs (8 sites)
Surface Water (SW)

Pebble Beach Circle (801)Distribution System (DS)
Dawson Creek Drive (802)Distribution System (DS)
Leafwood Court (803)Distribution System (DS)
1975 Huntington Court (804)Distribution System (DS)
Eastridge Pump Station@ 704 Saddle Ridge Way (805)Distribution System (DS)
Bridge Valve Vault (806)Distribution System (DS)
420 Gregory Street (807)Distribution System (DS)
Arlington Circle (808)Distribution System (DS)

Distribution System
Surface Water (SW)

DSMRT for North Bay Regional WTPMaximum Residence Time (MR)
DSMRT for Waterman WTPMaximum Residence Time (MR)

NBR WTP - NORTH BAY AQUEDUCT - RAW
Surface Water (SW)

NBR WTP - NORTH BAY D48/003-NBRNBSR (SR)

NBR WTP - PUTAH SOUTH CANAL - RAW
Surface Water (SW)

NBR WTP - PUTAH SOU D48/003-NBRPSSR (SR)

NORTH BAY REGIONAL WTP - TREATED
Surface Water (SW)

NORTH BAY REGIONAL D48/003-NBR-TSR (SR)

WATERMAN WTP-FINISHED WATER
Surface Water (SW)

WATERMAN WTP-FINISH D48/003-WM-TRSR (SR)

FAQ

Is City of Fairfield tap water safe to drink?

When was City of Fairfield last tested for water contamination?

The latest water samples were taken on October 1st, 2024.