Golden State Water Company - South San Gabriel (CA) Water Quality

Golden State Water Company - South San Gabriel is a large public water system in EPA region 9 that provides tap water for the 91755 zip codes. It has 11 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 1.63 µg/L. The maximum reported level of Manganese was 9.3 µg/L. There were 2 contamintants found in the Golden State Water Company - South San Gabriel water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (10)

1,2,3-trichloropropane (10)

1,3-butadiene (10)

1,4-dioxane (10)

1-butanol (8)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (7)

1H,1H,2H,2H-perfluorodecane sulfonic acid (7)

1H,1H,2H,2H-perfluorohexane sulfonic acid (7)

1H,1H,2H,2H-perfluorooctane sulfonic acid (7)

2,4-dinitrotoluene (6)

2,6-dinitrotoluene (6)

2-methoxyethanol (8)

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

4,4'-dichloro dichlorophenyl ethylene (DDE) (6)

4,8-dioxa-3H-perfluorononanoic acid (7)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (7)

alpha-hexachlorocyclohexane (8)

anatoxin-a (8)

bromochloromethane (Halon 1011) (10)

bromomethane (10)

Butylated Hydroxyanisole (8)

chlorate (18)

chlorodifluoromethane (HCFC-22) (10)

chloromethane (10)

chlorpyrifos (8)

chromium (18)

chromium-6 (18)

cobalt (18)

cylindrospermopsin (8)

dimethipin (8)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (6)

ethoprop (8)

Germanium (8)

HAA5 (five regulated haloacetic acids) (16)

HAA6Br (six brominated haloacetic acids) (16)

HAA9 (nine haloacetic acids) (16)

hexafluoropropylene oxide dimer acid (GenX) (7)

lithium (7)

Manganese (8)

methyl-tertiary-butyl-ether (MTBE) (6)

molinate (6)

molybdenum (18)

N-ethyl perfluorooctanesulfonamidoacetic acid (7)

N-methyl perfluorooctanesulfonamidoacetic acid (7)

nitrobenzene (6)

nonafluoro-3,6-dioxaheptanoic acid (7)

o-toluidine (8)

oxyfluorfen (8)

perchlorate (6)

perfluoro(2-ethoxyethane)sulfonic acid (7)

perfluoro-3-methoxypropanoic acid (7)

perfluoro-4-methoxybutanoic acid (7)

perfluorobutanesulfonic acid (17)

perfluorobutanoic acid (7)

perfluorodecanoic acid (7)

perfluorododecanoic acid (7)

perfluoroheptanesulfonic acid (7)

perfluoroheptanoic acid (17)

perfluorohexanesulfonic acid (17)

perfluorohexanoic acid (7)

perfluorononanoic acid (17)

perfluorooctanesulfonic acid (17)

perfluorooctanoic acid (17)

perfluoropentanesulfonic acid (7)

perfluoropentanoic acid (7)

perfluorotetradecanoic acid (7)

perfluorotridecanoic acid (7)

perfluoroundecanoic acid (7)

profenofos (8)

quinoline (8)

s-ethyl-dipropylthiocarbamate (EPTC) (6)

strontium (18)

tebuconazole (8)

terbacil (6)

total microcystins (8)

Total Permethrin (8)

tribufos (8)

vanadium (18)

Sampling Facilities

San Gabriel TP
Ground Water (GW)

SGTP Final Effluent EPEntry Point to the Distribution System (EP)

USGVMWD Intertie
Surface Water (SW)

USG-1 EPEntry Point to the Distribution System (EP)

Garvey Well 3
Ground Water (GW)

Garvey Treatment Plant EPEntry Point to the Distribution System (EP)

Stage 2 DBP Sample Sites
Multiple Sources (MX)

SG-DBP02 - 7520 Garvalia Ave.Distribution System (DS)
SG-DBP03 - 7861 La Merced Rd.Distribution System (DS)
SG-DBP04 - 7309 Tegner Dr.Distribution System (DS)
SG-D05-DN - 7528 Teresa AveDistribution System (DS)

Saxon Well 3
Ground Water (GW)

EP #30: Saxon 3 EPEntry Point to the Distribution System (EP)

Saxon Well 4
Ground Water (GW)

EP #29: Saxon 4 EPEntry Point to the Distribution System (EP)

Distribution System - SW
Surface Water (SW)

DSMRT for USGVMWD (7861 La Merced Rd.)Maximum Residence Time (MR)

Distribution System - GW
Ground Water (GW)

DSMRT for Saxon Wells 3 & 4 (146 Marshall)Maximum Residence Time (MR)
DSMRT for San Gabriel TP (7520 Garvalia)Maximum Residence Time (MR)

EARLE WELL 01
Ground Water (GW)

EARLE WELL 01 01S/12W-25A01SR (SR)

GARVEY WELL 01
Ground Water (GW)

GARVEY WELL 01 01S/12W-25B03SR (SR)

SAXON WELL 04
Ground Water (GW)

SAXON WELL 04 01S/12W-24E05SR (SR)

FAQ

Is Golden State Water Company - South San Gabriel tap water safe to drink?

When was Golden State Water Company - South San Gabriel last tested for water contamination?

The latest water samples were taken on April 11th, 2024.