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Tap water quality report

Soboba

EPA monitoring tested this supplier for 71 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
12
detected
3,000
people served
8
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Native American

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

8
health-based violations
82
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-04-01 → 2003-04-30
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-05-01 → 2002-05-31
MCL Health-based Resolved 2002-03-01 → 2002-03-31
MCL Health-based Resolved 1991-08-01 → 1991-08-31
MCL Health-based Resolved 1991-07-01 → 1991-07-31
MCL Health-based Resolved 1991-05-01 → 1991-05-31
MCL Health-based Resolved 1991-04-01 → 1991-04-30
MR Monitoring Resolved 2023-10-01 → 2023-12-31
MON Monitoring Resolved 2023-10-01 → 2023-10-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
2300 µg/L 23%
of the EPA limit 10000 µg/L
 56/58 SYR4 2012–2019
Lead
0.0053 mg/L 35%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Barium
190 µg/L 9.5%
of the EPA limit 2000 µg/L
 5/5 SYR4 2018
Combined Uranium
5 µg/L 17%
of the EPA limit 30 µg/L
 5/6 SYR4 2018–2019
Fluoride
330 µg/L 8.3%
of the EPA limit 4000 µg/L
 5/5 SYR4 2018
Gross Alpha, Excl. Radon And U
5.518 pCi/L 37%
of the EPA limit 15 pCi/L
 4/6 SYR4 2018–2019
TTHM
14 µg/L 18%
of the EPA limit 80 µg/L
 4/5 SYR4 2012–2018
Combined Radium (-226 And -228)
2.849 pCi/L 57%
of the EPA limit 5 pCi/L
 2/5 SYR4 2018–2019
Benzo(A)Pyrene
0.1000 µg/L 50%
of the EPA limit 0.2000 µg/L
 1/3 SYR4 2018
Chromium
2.7 µg/L 2.7%
of the EPA limit 100 µg/L
 1/5 SYR4 2018
Dichloromethane
0.5900 µg/L 12%
of the EPA limit 5 µg/L
 1/12 SYR4 2015–2019
Total Haloacetic Acids (HAA5)
20 µg/L 33%
of the EPA limit 60 µg/L
 1/5 SYR4 2012–2018
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Isaiah Vivanco
Phone
9516542765
Email
ivivanco@soboba-nsn.gov

Frequently asked questions about Soboba

Is Soboba tap water safe to drink?

EPA monitoring detected 12 contaminants in Soboba's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Soboba's water?

EPA monitoring detected Nitrate, Lead, Barium, Combined Uranium, Fluoride, and others. The full list with the level and data source for each is above.

How many people does Soboba serve?

Soboba reports serving 3,000 people in California, per its EPA record.

Has Soboba had any water quality violations?

The EPA has 82 violations on file for Soboba, of which 8 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.