City of Santa Ana (CA) Water Quality

City of Santa Ana is a large public water system in EPA region 9 that provides tap water for the 92643, 92701 - 92708, 92712, 92799, 92866 zip codes. It has 44 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 10.274 µg/L. The maximum reported level of Manganese was 3.278 µg/L. There were 2 contamintants found in the City of Santa Ana water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (30)

1,2,3-trichloropropane (30)

1,3-butadiene (30)

1,4-dioxane (30)

1-butanol (29)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (24)

17-alpha-ethynylestradiol (30)

17-beta-estradiol (30)

1H,1H,2H,2H-perfluorodecane sulfonic acid (24)

1H,1H,2H,2H-perfluorohexane sulfonic acid (24)

1H,1H,2H,2H-perfluorooctane sulfonic acid (24)

2,4-dinitrotoluene (40)

2,6-dinitrotoluene (40)

2-methoxyethanol (29)

2-propen-1-ol (Allyl Alcohol) (29)

4,4'-dichloro dichlorophenyl ethylene (DDE) (40)

4,8-dioxa-3H-perfluorononanoic acid (24)

4-androstene-3,17-dione (30)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (24)

alpha-hexachlorocyclohexane (28)

anatoxin-a (16)

bromochloromethane (Halon 1011) (30)

bromomethane (30)

Butylated Hydroxyanisole (29)

chlorate (36)

chlorodifluoromethane (HCFC-22) (30)

chloromethane (30)

chlorpyrifos (28)

chromium (36)

chromium-6 (36)

cobalt (36)

cylindrospermopsin (16)

dimethipin (28)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (40)

equilin (30)

estriol (30)

estrone (30)

ethoprop (28)

Germanium (29)

HAA5 (five regulated haloacetic acids) (32)

HAA6Br (six brominated haloacetic acids) (32)

HAA9 (nine haloacetic acids) (32)

hexafluoropropylene oxide dimer acid (GenX) (24)

lithium (24)

Manganese (29)

methyl-tertiary-butyl-ether (MTBE) (40)

molinate (40)

molybdenum (36)

N-ethyl perfluorooctanesulfonamidoacetic acid (24)

N-methyl perfluorooctanesulfonamidoacetic acid (24)

nitrobenzene (40)

nonafluoro-3,6-dioxaheptanoic acid (24)

o-toluidine (29)

oxyfluorfen (28)

perchlorate (48)

perfluoro(2-ethoxyethane)sulfonic acid (24)

perfluoro-3-methoxypropanoic acid (24)

perfluoro-4-methoxybutanoic acid (24)

perfluorobutanesulfonic acid (54)

perfluorobutanoic acid (24)

perfluorodecanoic acid (24)

perfluorododecanoic acid (24)

perfluoroheptanesulfonic acid (24)

perfluoroheptanoic acid (54)

perfluorohexanesulfonic acid (54)

perfluorohexanoic acid (24)

perfluorononanoic acid (54)

perfluorooctanesulfonic acid (54)

perfluorooctanoic acid (54)

perfluoropentanesulfonic acid (24)

perfluoropentanoic acid (24)

perfluorotetradecanoic acid (24)

perfluorotridecanoic acid (24)

perfluoroundecanoic acid (24)

profenofos (28)

quinoline (29)

s-ethyl-dipropylthiocarbamate (EPTC) (40)

strontium (36)

tebuconazole (28)

terbacil (40)

testosterone (30)

total microcystins (16)

Total Permethrin (28)

tribufos (28)

vanadium (36)

Sampling Facilities

Well 35
Ground Water (GW)

EP #58 - EP-SA35-01Entry Point to the Distribution System (EP)

Well 34
Ground Water (GW)

EP #56 - RES-SASOUTH-01Entry Point to the Distribution System (EP)

Well 27
Ground Water (GW)

EP #49 - RES-SACROOKE-01Entry Point to the Distribution System (EP)

Well 26
Ground Water (GW)

EP #48 - RES-SAEAST-01Entry Point to the Distribution System (EP)

Wells 20, 21 & 30
Ground Water (GW)

EP #45 - RES-SAWEST-01Entry Point to the Distribution System (EP)

Well 37
Ground Water (GW)

EP #42 - EP-SA37-01Entry Point to the Distribution System (EP)

Walnut Reservoir
Ground Water (GW)

EP #41 - RES-SAWALNUT-01Entry Point to the Distribution System (EP)

Garthe (Bristol) Reservoir
Ground Water (GW)

EP #40 - RES-SAGARTHE-01Entry Point to the Distribution System (EP)

MWD Intertie 1
Surface Water (SW)

IS-DIEMER-PLANTEFF-SAEntry Point to the Distribution System (EP)

Well 39
Ground Water (GW)

EP-SA39-01Entry Point to the Distribution System (EP)

Well 40 PFAS Treatment Facility
Ground Water (GW)

PFAS-SA40-IX-FNSHEntry Point to the Distribution System (EP)

Well 31
Ground Water (GW)

EP #53 - EP-SA31-01Entry Point to the Distribution System (EP)

Well 28
Ground Water (GW)

EP #50 - EP-SA28-01Entry Point to the Distribution System (EP)

MWD Intertie 3
Surface Water (SW)

IS-F6-01Entry Point to the Distribution System (EP)

Well 40
Ground Water (GW)

EP #75 - EP-SA40-01Entry Point to the Distribution System (EP)

Well 41
Ground Water (GW)

EP #76 - EP-SA41-01Entry Point to the Distribution System (EP)

Santa Ana Distribution System
Multiple Sources (MX)

DL-SA-MAYWOOD-01Distribution System (DS)
DL-SA-BRISTOL-01Distribution System (DS)
DL-SA-TOWNSEND-01Distribution System (DS)
DL-SA-10TH-01Distribution System (DS)
DL-SA-TUSTIN-01Distribution System (DS)
DL-SA-CONCORD-01Distribution System (DS)
DL-SA-CATALINA-01Distribution System (DS)
DL-SA-5TH-01Distribution System (DS)

Well 38
Ground Water (GW)

EP #60: EP-SA38-01Entry Point to the Distribution System (EP)

Distribution System- DSMRT Site- GW
Ground Water (GW)

DL-SA-ROSS-01Maximum Residence Time (MR)

Distribution System - DSMRT Site-SW
Surface Water (SW)

DL-SA-ROSS-01Maximum Residence Time (MR)

MWD-SA6
Surface Water (SW)

IS-DIEMER-PLANTEFF-01Entry Point to the Distribution System (EP)

D/DBP Max. Residence Time-Site 1
Ground Water (GW)

DL-SA-ROSS-01Maximum Residence Time (MR)

D/DBP Max. Residence Time Site 2
Surface Water (SW)

DL-SA-ROSS-01Maximum Residence Time (MR)

WELL 13
Ground Water (GW)

WELL 13 05S/10W-13B07SR (SR)

WELL 16
Ground Water (GW)

WELL 16 05S/10W-12L03SR (SR)

WELL 18
Ground Water (GW)

WELL 18 05S/10W-01E02SR (SR)

WELL 20
Ground Water (GW)

WELL 20 05S/10W-16B03SR (SR)

WELL 21
Ground Water (GW)

WELL 21 05S/10W-16B02SR (SR)

WELL 24
Ground Water (GW)

WELL 24 05S/10W-02K02SR (SR)

WELL 26
Ground Water (GW)

WELL 26 05S/09W-19H01SR (SR)

WELL 27
Ground Water (GW)

WELL 27 04S/09W-31Q01SR (SR)

WELL 28
Ground Water (GW)

WELL 28 04S/09W-31R01SR (SR)

WELL 29
Ground Water (GW)

WELL 29 05S/10W-13B09SR (SR)

WELL 30
Ground Water (GW)

WELL 30 05S/10W-16B04SR (SR)

WELL 31
Ground Water (GW)

WELL 31 05S/09W-17B01SR (SR)

WELL 32
Ground Water (GW)

WELL 32 04S/10W-36Q01SR (SR)

WELL 33
Ground Water (GW)

WELL 33 05S/10W-13C03SR (SR)

WELL 34
Ground Water (GW)

WELL 34 05S/10W-26Q02SR (SR)

WELL 36
Ground Water (GW)

WELL 36 05S/10W-01E03SR (SR)

WELL 35
Ground Water (GW)

WELL 35 05S/10W-03R03SR (SR)

WELL 37
Ground Water (GW)

WELL 37 05S/10W-14L01SR (SR)

WELL 38
Ground Water (GW)

WELL 38 04S/09W-32P02SR (SR)

WELL 39
Ground Water (GW)

WELL 39 3010038-061 (SA-39/1)SR (SR)

RES-SABRISTOL-01
()

RESERVOIR SPIGOT INSIDE PUMP STATION, WEST SIDEEntry Point to the Distribution System (EP)

FAQ

Is City of Santa Ana tap water safe to drink?

When was City of Santa Ana last tested for water contamination?

The latest water samples were taken on February 11th, 2025.