Is Purissima Hills Water District Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Santa Clara

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	1999-11-01 → 1999-11-30
MCL	Health-based	Resolved	1999-11-01 → 1999-11-30
MCL	Health-based	Resolved	1999-11-01 → 1999-11-30
MCL	Health-based	Resolved	1999-11-01 → 1999-11-30
TT	Health-based	Resolved	1998-08-01 → 1998-08-31
TT	Health-based	Resolved	1998-08-01 → 1998-08-31
TT	Health-based	Resolved	1995-03-01 → 1995-03-31
TT	Health-based	Resolved	1995-03-01 → 1995-03-31
TT	Health-based	Resolved	1992-03-01 → 1992-03-31
TT	Health-based	Resolved	1992-03-01 → 1992-03-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Dichloroacetic Acid	30.9 µg/L No EPA limit set worst single sample: 51.2 µg/L	64/64	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	53.875 µg/L 90% of the EPA limit 60 µg/L worst single sample: 77.8 µg/L	64/64	SYR4	2012–2019
Trichloroacetic Acid	24.905 µg/L No EPA limit set worst single sample: 33.8 µg/L	64/64	SYR4	2012–2019
Chloroform	61.334 µg/L No EPA limit set worst single sample: 65.55 µg/L	63/64	SYR4	2012–2019
TTHM	62.686 µg/L 78% of the EPA limit 80 µg/L worst single sample: 67.73 µg/L	63/64	SYR4	2012–2019
Bromodichloromethane	3.905 µg/L No EPA limit set worst single sample: 4.1 µg/L	46/64	SYR4	2012–2019
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L	40/40	LCR	2023
Monochloroacetic Acid	3.59 µg/L No EPA limit set worst single sample: 3.7 µg/L	3/64	SYR4	2012–2019
Dibromochloromethane	2.472 µg/L No EPA limit set worst single sample: 2.53 µg/L	2/64	SYR4	2012–2019
Bromoform	3.22 µg/L No EPA limit set	1/64	SYR4	2012–2019
Dibromoacetic Acid	1.3 µg/L No EPA limit set	1/64	SYR4	2012–2019

31 contaminants tested, none detected

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Utility contact

Contact: WALTER, ERIK
Phone: 650-948-1217
Email: [email protected]

Frequently asked questions about Purissima Hills Water District

Is Purissima Hills Water District tap water safe to drink?

EPA monitoring detected 11 contaminants in Purissima Hills Water District'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 Purissima Hills Water District's water?

EPA monitoring detected Dichloroacetic Acid, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Chloroform, TTHM, and others. The full list with the level and data source for each is above.

How many people does Purissima Hills Water District serve?

Purissima Hills Water District reports serving 6,245 people in California, per its EPA record.

Has Purissima Hills Water District had any water quality violations?

The EPA has 14 violations on file for Purissima Hills Water District, of which 12 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.