East Valley Water District (CA) Water Quality

East Valley Water District is a large public water system in EPA region 9 that provides tap water for the 92346, 92410 zip codes. It has 48 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 23.3 µg/L. The maximum reported level of Manganese was 45 µg/L. There were 2 contamintants found in the East Valley Water District water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (36)

1,2,3-trichloropropane (36)

1,3-butadiene (36)

1,4-dioxane (36)

1-butanol (34)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (27)

1H,1H,2H,2H-perfluorodecane sulfonic acid (27)

1H,1H,2H,2H-perfluorohexane sulfonic acid (27)

1H,1H,2H,2H-perfluorooctane sulfonic acid (27)

2,4-dinitrotoluene (95)

2,6-dinitrotoluene (95)

2-methoxyethanol (34)

2-propen-1-ol (Allyl Alcohol) (34)

4,4'-dichloro dichlorophenyl ethylene (DDE) (96)

4,8-dioxa-3H-perfluorononanoic acid (27)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (27)

alpha-hexachlorocyclohexane (34)

anatoxin-a (8)

bromochloromethane (Halon 1011) (36)

bromomethane (36)

Butylated Hydroxyanisole (34)

chlorate (52)

chlorodifluoromethane (HCFC-22) (36)

chloromethane (36)

chlorpyrifos (34)

chromium (52)

chromium-6 (52)

cobalt (52)

cylindrospermopsin (8)

dimethipin (34)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (99)

ethoprop (34)

Germanium (34)

HAA5 (five regulated haloacetic acids) (32)

HAA6Br (six brominated haloacetic acids) (32)

HAA9 (nine haloacetic acids) (32)

hexafluoropropylene oxide dimer acid (GenX) (27)

lithium (27)

Manganese (34)

methyl-tertiary-butyl-ether (MTBE) (93)

molinate (96)

molybdenum (52)

N-ethyl perfluorooctanesulfonamidoacetic acid (27)

N-methyl perfluorooctanesulfonamidoacetic acid (27)

nitrobenzene (93)

nonafluoro-3,6-dioxaheptanoic acid (27)

o-toluidine (34)

oxyfluorfen (34)

perchlorate (99)

perfluoro(2-ethoxyethane)sulfonic acid (27)

perfluoro-3-methoxypropanoic acid (27)

perfluoro-4-methoxybutanoic acid (27)

perfluorobutanesulfonic acid (63)

perfluorobutanoic acid (27)

perfluorodecanoic acid (27)

perfluorododecanoic acid (27)

perfluoroheptanesulfonic acid (27)

perfluoroheptanoic acid (63)

perfluorohexanesulfonic acid (63)

perfluorohexanoic acid (27)

perfluorononanoic acid (63)

perfluorooctanesulfonic acid (63)

perfluorooctanoic acid (63)

perfluoropentanesulfonic acid (27)

perfluoropentanoic acid (27)

perfluorotetradecanoic acid (27)

perfluorotridecanoic acid (27)

perfluoroundecanoic acid (27)

profenofos (34)

quinoline (34)

s-ethyl-dipropylthiocarbamate (EPTC) (96)

strontium (52)

tebuconazole (34)

terbacil (96)

total microcystins (8)

Total Permethrin (34)

tribufos (34)

vanadium (52)

Sampling Facilities

Well 151
Ground Water (GW)

Entry Point to Dist. System Well 151Entry Point to the Distribution System (EP)

Philip A. Disch TP
Surface Water (SW)

EP #10 - Disch. TP EffluentEntry Point to the Distribution System (EP)

Well 125
Ground Water (GW)

EP #33 - Well 125 TreatedEntry Point to the Distribution System (EP)

Well 11A
Ground Water (GW)

EP #22 - Well 11A TreatedEntry Point to the Distribution System (EP)

Well 24A
Ground Water (GW)

EP #24 - Well 24A TreatedEntry Point to the Distribution System (EP)

Well 24B
Ground Water (GW)

EP #25 - Well 24B TreatedEntry Point to the Distribution System (EP)

Well 25A
Ground Water (GW)

EP #26 - Well 25A TreatedEntry Point to the Distribution System (EP)

Well 120
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Well 141
Ground Water (GW)

EP #36 - Well 141 TreatedEntry Point to the Distribution System (EP)

Well 142
Ground Water (GW)

EP #37 - Well 142 TreatedEntry Point to the Distribution System (EP)

Well 39
Ground Water (GW)

EP #29 - Well 39 TreatedEntry Point to the Distribution System (EP)

Well 28A
Ground Water (GW)

EP #28 - Well 28A TreatedEntry Point to the Distribution System (EP)

Well 132-5
Ground Water (GW)

EP #34 - Well 132-5 TreatedEntry Point to the Distribution System (EP)

Well 146
Ground Water (GW)

EP #40 - Well 146 TreatedEntry Point to the Distribution System (EP)

Well 143
Ground Water (GW)

EP #38 - Well 143 TreatedEntry Point to the Distribution System (EP)

Well 147
Ground Water (GW)

EP #41 - Well 147 TreatedEntry Point to the Distribution System (EP)

Well 146A
Ground Water (GW)

EP #39 - Well 146A TreatedEntry Point to the Distribution System (EP)

Distribution System
Multiple Sources (MX)

6600 Summit Dr.Distribution System (DS)
29412 Baseline St.Distribution System (DS)
28819 Edward View Dr.Distribution System (DS)
7800 La MonicaDistribution System (DS)
28530 Oak Ridge Rd.Distribution System (DS)
Plant 134 Entry PointDistribution System (DS)
3713 Lynwood Dr.Distribution System (DS)
6534 Church St. HydrantDistribution System (DS)

Well 9A
Ground Water (GW)

EP #21: Well 9A TreatedEntry Point to the Distribution System (EP)

Well 107
Ground Water (GW)

EP #31: Well 107 TreatedEntry Point to the Distribution System (EP)

Distribution System - SW
Surface Water (SW)

6534 Church St.Maximum Residence Time (MR)

Distribution System - GW
Ground Water (GW)

24632 CourtMaximum Residence Time (MR)
3713 LynwoodMaximum Residence Time (MR)
7800 LaMonicaMaximum Residence Time (MR)
6738 Del RosaMaximum Residence Time (MR)
26999 5thMaximum Residence Time (MR)
29412 Baseline St.Maximum Residence Time (MR)

EP-#023 WELL 12ATRTD
Ground Water (GW)

WELL012ATPEntry Point to the Distribution System (EP)

EP-#027 WELL 27TRTD
Ground Water (GW)

WELL0027TPEntry Point to the Distribution System (EP)

EP-#030 WELL 40ATRTD
Ground Water (GW)

WELL040ATPEntry Point to the Distribution System (EP)

CULL WELL 02
Ground Water (GW)

CULL WELL 02 01S/03W-05D04Entry Point to the Distribution System (EP)

CULL WELL 03 - INACTIVE
Ground Water (GW)

CULL WELL 03 - INAC 01S/03W-05D08SR (SR)

CULL WELL 04
Ground Water (GW)

CULL WELL 04 01S/03W-05D07SR (SR)

NORTH FORK DITCH
Surface Water (SW)

NORTH FORK DITCH M36/064-NFORKSR (SR)

PLANT 125
Ground Water (GW)

PLANT 125 01S/02W-07F01Entry Point to the Distribution System (EP)

WELL 009A - INACTIVE
Ground Water (GW)

WELL 009A - 01S/03W-06H04Entry Point to the Distribution System (EP)

WELL 011A
Ground Water (GW)

WELL 011A 01S/04W-02Q09Entry Point to the Distribution System (EP)

WELL 012A
Ground Water (GW)

WELL 012A 01S/04W-02Q08Entry Point to the Distribution System (EP)

WELL 024A
Ground Water (GW)

WELL 024A 01N/04W-26A02Entry Point to the Distribution System (EP)

WELL 024B
Ground Water (GW)

WELL 024B 01N/04W-26A03Entry Point to the Distribution System (EP)

WELL 025A
Ground Water (GW)

WELL 025A 01N/04W-25C02Entry Point to the Distribution System (EP)

WELL 027
Ground Water (GW)

WELL 027 01N/04W-25A01Entry Point to the Distribution System (EP)

WELL 028A
Ground Water (GW)

WELL 028A 01S/04W-12B06Entry Point to the Distribution System (EP)

WELL 039
Ground Water (GW)

WELL 039 01N/03W-30J05Entry Point to the Distribution System (EP)

WELL 040A
Ground Water (GW)

WELL 040A 01S/03W-04N03Entry Point to the Distribution System (EP)

WELL 041 - INACTIVE
Ground Water (GW)

WELL 041 - INACTIVE 01N/03W-30N01Entry Point to the Distribution System (EP)

WELL 107
Ground Water (GW)

WELL 107 01N/04W-25C04Entry Point to the Distribution System (EP)

WELL 120 (CRAM)
Ground Water (GW)

WELL 120 (CRAM) 036/064-003Entry Point to the Distribution System (EP)

WELL 121
Ground Water (GW)

WELL 121 036/064-002SR (SR)

WELL 141 (MCDANIEL)
Ground Water (GW)

WELL 141 (MCDANIEL) 036/064-004Entry Point to the Distribution System (EP)

WELL 146 (RANCH WELL)
Ground Water (GW)

WELL 146 (RANCH WEL 3610064-032Entry Point to the Distribution System (EP)

WELL 143 (ABBEY WAY)
Ground Water (GW)

WELL 143 (ABBEY WAY 3610064-033Entry Point to the Distribution System (EP)

STATE PROJECT WATER - RAW
Surface Water (SW)

STATE PROJECT WATER M36/064-SPWRASR (SR)

FAQ

Is East Valley Water District tap water safe to drink?

When was East Valley Water District last tested for water contamination?

The latest water samples were taken on April 22nd, 2025.