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Chuckawalla Valley State Prison

EPA monitoring tested this supplier for 81 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
12
detected
4,090
people served
6
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
State government
Counties served
Riverside

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.

6
health-based violations
22
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2013-04-01 → 2013-06-30
MCL Health-based Resolved 2013-04-01 → 2013-06-30
MCL Health-based Resolved 2013-01-01 → 2013-03-31
MCL Health-based Resolved 2013-01-01 → 2013-03-31
MCL Health-based Resolved 2012-10-01 → 2012-12-31
MCL Health-based Resolved 2012-10-01 → 2012-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Arsenic
47 µg/L 470%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 65.9 µg/L
900/1390 SYR4 2012–2019
Fluoride
8900 µg/L 223%
of the EPA limit, at the 95th percentile of samples — 4000 µg/L
worst single sample: 13000 µg/L
611/760 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 44/44 LCR 2024
Nitrate
3580 µg/L 36%
of the EPA limit 10000 µg/L
 8/52 SYR4 2012–2019
Barium
24.81 µg/L 1.2%
of the EPA limit 2000 µg/L
worst single sample: 25 µg/L
2/7 SYR4 2012–2018
Bromodichloromethane
0.7429 µg/L
No EPA limit set
worst single sample: 0.7560 µg/L
2/8 SYR4 2016–2019
Bromoform
0.6434 µg/L
No EPA limit set
worst single sample: 0.6530 µg/L
2/8 SYR4 2016–2019
Chloroform
0.6072 µg/L
No EPA limit set
worst single sample: 0.6150 µg/L
2/8 SYR4 2016–2019
Dibromochloromethane
0.9068 µg/L
No EPA limit set
worst single sample: 0.9250 µg/L
2/8 SYR4 2016–2019
TTHM
2.901 µg/L 3.6%
of the EPA limit 80 µg/L
worst single sample: 2.95 µg/L
2/8 SYR4 2016–2019
Thallium, Total
1.1 µg/L 55%
of the EPA limit 2 µg/L
 1/9 SYR4 2012–2018
Lithium
33 µg/L
No EPA limit set
 1/2 UCMR-5 2024
69 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDibromoacetic AcidDichloroacetic AcidEthylbenzeneHfpo-DaLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumSimazineStyreneTetrachloroethyleneTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PIERCE, CHRISTOPHER
Phone
760-921-3000
Email
Christopher.Pierce@cdcr.ca.gov

Frequently asked questions about Chuckawalla Valley State Prison

Is Chuckawalla Valley State Prison tap water safe to drink?

EPA monitoring detected 12 contaminants in Chuckawalla Valley State Prison'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 Chuckawalla Valley State Prison's water?

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

How many people does Chuckawalla Valley State Prison serve?

Chuckawalla Valley State Prison reports serving 4,090 people in California, per its EPA record.

Has Chuckawalla Valley State Prison had any water quality violations?

The EPA has 22 violations on file for Chuckawalla Valley State Prison, of which 6 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.