City of Milpitas (CA) Water Quality

City of Milpitas is a large public water system in EPA region 9 that provides tap water for the 95035, 95036 zip codes. It has 14 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 46.8 µg/L. The maximum reported level of Manganese was 17 µg/L. There were 2 contamintants found in the City of Milpitas water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (7)

1,2,3-trichloropropane (7)

1,3-butadiene (7)

1,4-dioxane (7)

1-butanol (8)

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

2,6-dinitrotoluene (2)

2-methoxyethanol (8)

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

4,4'-dichloro dichlorophenyl ethylene (DDE) (2)

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

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

alpha-hexachlorocyclohexane (8)

anatoxin-a (15)

bromochloromethane (Halon 1011) (7)

bromomethane (7)

Butylated Hydroxyanisole (8)

chlorate (14)

chlorodifluoromethane (HCFC-22) (7)

chloromethane (7)

chlorpyrifos (8)

chromium (14)

chromium-6 (14)

cobalt (14)

cylindrospermopsin (15)

dimethipin (8)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (2)

ethoprop (8)

Germanium (8)

HAA5 (five regulated haloacetic acids) (31)

HAA6Br (six brominated haloacetic acids) (31)

HAA9 (nine haloacetic acids) (31)

hexafluoropropylene oxide dimer acid (GenX) (8)

lithium (8)

Manganese (8)

methyl-tertiary-butyl-ether (MTBE) (2)

molinate (2)

molybdenum (14)

N-ethyl perfluorooctanesulfonamidoacetic acid (7)

N-methyl perfluorooctanesulfonamidoacetic acid (7)

nitrobenzene (2)

nonafluoro-3,6-dioxaheptanoic acid (8)

o-toluidine (8)

oxyfluorfen (8)

perchlorate (2)

perfluoro(2-ethoxyethane)sulfonic acid (8)

perfluoro-3-methoxypropanoic acid (8)

perfluoro-4-methoxybutanoic acid (8)

perfluorobutanesulfonic acid (15)

perfluorobutanoic acid (8)

perfluorodecanoic acid (8)

perfluorododecanoic acid (8)

perfluoroheptanesulfonic acid (8)

perfluoroheptanoic acid (15)

perfluorohexanesulfonic acid (15)

perfluorohexanoic acid (8)

perfluorononanoic acid (15)

perfluorooctanesulfonic acid (15)

perfluorooctanoic acid (15)

perfluoropentanesulfonic acid (8)

perfluoropentanoic acid (8)

perfluorotetradecanoic acid (7)

perfluorotridecanoic acid (7)

perfluoroundecanoic acid (8)

profenofos (8)

quinoline (8)

s-ethyl-dipropylthiocarbamate (EPTC) (2)

strontium (14)

tebuconazole (8)

terbacil (2)

total microcystins (14)

Total Permethrin (8)

tribufos (8)

vanadium (14)

Sampling Facilities

SFPUC Turnout
Surface Water (SW)

Sunnyhills TurnoutEntry Point to the Distribution System (EP)

SCVWD Turnout
Surface Water (SW)

Gibraltar TurnoutEntry Point to the Distribution System (EP)

Ranch & N McCarthy (SS#1)
Surface Water (SW)

Stage 2 DBP Site 1Distribution System (DS)

1790 St Andrews Ct (SS#19)
Surface Water (SW)

Stage 2 DBP Site 2Distribution System (DS)

40 N Park Victoria Dr
Surface Water (SW)

Stage 2 DBP Site 3Distribution System (DS)

461 S Milpitas Blvd (SS #31)
Surface Water (SW)

Stage 2 DBP Site 4Distribution System (DS)

1747 Starlite Dr
Surface Water (SW)

Stage 2 DBP Site 5Distribution System (DS)

2220 Churchill Dr (SS #25)
Surface Water (SW)

Stage 2 DBP Site 6Distribution System (DS)

2325 Dubois St (SS #29)
Surface Water (SW)

Stage 2 DBP Site 7Distribution System (DS)

485 Redwood Ave (SS #22)
Surface Water (SW)

Stage 2 DBP Site 8Distribution System (DS)

SFPUC turnout
Surface Water (SW)

Sunnyhills TurnoutEntry Point to the Distribution System (EP)

Distribution System - SW
Surface Water (SW)

DSMRT for SCVWD (Ranch & N McCarthy - SS#1)Maximum Residence Time (MR)
DSMRT for SFPUC (1790 St Andrews Ct - SS#19)Maximum Residence Time (MR)

PINEWOOD WELL
Ground Water (GW)

PINEWOOD WELLEntry Point to the Distribution System (EP)

PINEWOOD WELL
Ground Water (GW)

PINEWOOD WELL 06S/01E-08L04SR (SR)

FAQ

Is City of Milpitas tap water safe to drink?

When was City of Milpitas last tested for water contamination?

The latest water samples were taken on June 24th, 2025.