Is Centinela State Prison Tap Water Safe? Quality Report

Water source: SWP
Ownership: State government
Counties served: Imperial

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2015-04-01 → 2015-06-30
MCL	Health-based	Resolved	2015-04-01 → 2015-06-30
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2014-10-01 → 2014-12-31
MCL	Health-based	Resolved	2014-10-01 → 2014-12-31
MCL	Health-based	Resolved	2014-10-01 → 2014-12-31
MCL	Health-based	Resolved	2014-07-01 → 2014-09-30
MCL	Health-based	Resolved	2014-07-01 → 2014-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	36 µg/L No EPA limit set	65/65	SYR4	2013–2019
Bromoform	4.6 µg/L No EPA limit set	65/65	SYR4	2013–2019
Chloroform	54 µg/L No EPA limit set	65/65	SYR4	2013–2019
Dibromochloromethane	26.3 µg/L No EPA limit set	65/65	SYR4	2013–2019
TTHM	120 µg/L 150% of the EPA limit, in the worst sample — 80 µg/L	65/65	SYR4	2013–2019
Dibromoacetic Acid	9.3 µg/L No EPA limit set	54/56	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	53.9 µg/L 90% of the EPA limit 60 µg/L	52/56	SYR4	2013–2019
Dichloroacetic Acid	30.3 µg/L No EPA limit set	49/56	SYR4	2013–2019
Trichloroacetic Acid	13.1 µg/L No EPA limit set	45/56	SYR4	2013–2019
Monobromoacetic Acid	8.6 µg/L No EPA limit set	31/56	SYR4	2013–2019
Lead	0.0016 mg/L 11% of the EPA limit 0.0150 mg/L	16/16	LCR	2024
Monochloroacetic Acid	15 µg/L No EPA limit set	12/56	SYR4	2013–2019
Lithium	78.8 µg/L No EPA limit set	4/4	UCMR-5	2024

29 contaminants tested, none detected

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Utility contact

Contact: GREEN, ANDRE
Phone: 760-337-7900
Email: Andre.Green@cdcr.ca.gov

Frequently asked questions about Centinela State Prison

Is Centinela State Prison tap water safe to drink?

EPA monitoring detected 13 contaminants in Centinela 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 Centinela State Prison's water?

EPA monitoring detected Bromodichloromethane, Bromoform, Chloroform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does Centinela State Prison serve?

Centinela State Prison reports serving 4,100 people in California, per its EPA record.

Has Centinela State Prison had any water quality violations?

The EPA has 57 violations on file for Centinela State Prison, of which 51 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.