US Army Fort Irwin (CA) Water Quality

US Army Fort Irwin is a large public water system in EPA region 9 that provides tap water for the 92310 zip codes. It has 15 facilities where the water supply was tested for 82 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 6.9 µg/L. The maximum reported level of Manganese was 1.4 µg/L. There were 2 contamintants found in the US Army Fort Irwin water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (4)

1,2,3-trichloropropane (4)

1,3-butadiene (4)

1,4-dioxane (4)

1-butanol (2)

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

17-alpha-ethynylestradiol (4)

17-beta-estradiol (4)

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 (17)

2,6-dinitrotoluene (17)

2-methoxyethanol (2)

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

4,4'-dichloro dichlorophenyl ethylene (DDE) (17)

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

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

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

alpha-hexachlorocyclohexane (2)

bromochloromethane (Halon 1011) (4)

bromomethane (4)

Butylated Hydroxyanisole (2)

chlorate (8)

chlorodifluoromethane (HCFC-22) (4)

chloromethane (4)

chlorpyrifos (2)

chromium (8)

chromium-6 (8)

cobalt (8)

dimethipin (2)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (17)

equilin (4)

estriol (4)

estrone (4)

ethoprop (2)

Germanium (2)

HAA5 (five regulated haloacetic acids) (8)

HAA6Br (six brominated haloacetic acids) (8)

HAA9 (nine haloacetic acids) (8)

hexafluoropropylene oxide dimer acid (GenX) (2)

lithium (2)

Manganese (2)

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

molinate (17)

molybdenum (8)

N-ethyl perfluorooctanesulfonamidoacetic acid (2)

N-methyl perfluorooctanesulfonamidoacetic acid (2)

nitrobenzene (14)

nonafluoro-3,6-dioxaheptanoic acid (2)

o-toluidine (2)

oxyfluorfen (2)

perchlorate (17)

perfluoro(2-ethoxyethane)sulfonic acid (2)

perfluoro-3-methoxypropanoic acid (2)

perfluoro-4-methoxybutanoic acid (2)

perfluorobutanesulfonic acid (6)

perfluorobutanoic acid (2)

perfluorodecanoic acid (2)

perfluorododecanoic acid (2)

perfluoroheptanesulfonic acid (2)

perfluoroheptanoic acid (6)

perfluorohexanesulfonic acid (6)

perfluorohexanoic acid (2)

perfluorononanoic acid (6)

perfluorooctanesulfonic acid (6)

perfluorooctanoic acid (6)

perfluoropentanesulfonic acid (2)

perfluoropentanoic acid (2)

perfluorotetradecanoic acid (2)

perfluorotridecanoic acid (2)

perfluoroundecanoic acid (2)

profenofos (2)

quinoline (2)

s-ethyl-dipropylthiocarbamate (EPTC) (17)

strontium (8)

tebuconazole (2)

terbacil (17)

testosterone (4)

Total Permethrin (2)

tribufos (2)

vanadium (8)

Sampling Facilities

Fort Irwin (IWW) Treated Water
Ground Water (GW)

IWW Effluent - Treated WaterEntry Point to the Distribution System (EP)
LANGFORD WELL 02 036/705-007 (L-2)SR (SR)

IWW_DISTRIBUTION
Ground Water (GW)

Building 840Distribution System (DS)
Building 3903Distribution System (DS)
Building 1322Distribution System (DS)
Building G97Distribution System (DS)
LANGFORD WELL 03 036/705-008 (L-3)SR (SR)

RO Treatment Plant
Ground Water (GW)

EP #101 - RO Treatment Plant EffluentEntry Point to the Distribution System (EP)
RO Water enters the RO Water SystemEntry Point to the Distribution System (EP)

Bicycle Lake Booster Station
Ground Water (GW)

Bicycle Lake BS EffluentEntry Point to the Distribution System (EP)

Langford Lake Booster Station
Ground Water (GW)

Langford Lake BS EffluentEntry Point to the Distribution System (EP)

Irwin Well 7 (I-7)
Ground Water (GW)

Irwin Well 7 TreatedEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

DSMRT for RO Treatment PlantMaximum Residence Time (MR)
DSMRT for Bicycle Lake BSMaximum Residence Time (MR)
DSMRT for Langford Lake BSMaximum Residence Time (MR)
DSMRT for Irwin Well 7Maximum Residence Time (MR)

LANGFORD WELL 01 (L-1)
Ground Water (GW)

LANGFORD WELL 01 036/705-006 (L-1)SR (SR)

IRWIN WELL 07 (I-7)
Ground Water (GW)

IRWIN WELL 07 14N/03E-23H1 (I-7)SR (SR)

BICYCLE WELL 01 (B-1)
Ground Water (GW)

BICYCLE WELL 01 14N/03E-131K1S (B-1)SR (SR)

BICYCLE WELL 09 (B-9)
Ground Water (GW)

BICYCLE WELL 09 036/705-004 (B-9)Entry Point to the Distribution System (EP)

BICYCLE WELL 06 (B-6)
Ground Water (GW)

BICYCLE WELL 06 3610705-015 (B-6)SR (SR)

REVERSE OSMOSIS PLANT
Ground Water (GW)

R.O. EFFLUENTEntry Point to the Distribution System (EP)

BICYCLE LAKE BOOSTER STATION
Ground Water (GW)

BICYCLE BOOSTER STATIONEntry Point to the Distribution System (EP)

LANGFORD LAKE BOOSTER STATION
Ground Water (GW)

LANGFORD LAKE BOOSTER STATIONEntry Point to the Distribution System (EP)

FAQ

Is US Army Fort Irwin tap water safe to drink?

When was US Army Fort Irwin last tested for water contamination?

The latest water samples were taken on January 31st, 2025.