Is Nps-Wolverton Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Federal government
Counties served: Tulare

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.

283

health-based violations

300

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2023-10-01 → 2023-12-31
MCL	Health-based	Resolved	2023-10-01 → 2023-12-31
MCL	Health-based	Resolved	2023-07-01 → 2023-09-30
MCL	Health-based	Resolved	2023-07-01 → 2023-09-30
MCL	Health-based	Resolved	2023-04-01 → 2023-06-30
MCL	Health-based	Resolved	2023-04-01 → 2023-06-30
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Chloroform	100 µg/L No EPA limit set worst single sample: 150 µg/L	94/94	SYR4	2013–2019
TTHM	105.7 µg/L 132% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 150 µg/L	94/94	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	124 µg/L 207% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 220 µg/L	93/94	SYR4	2013–2019
Dichloroacetic Acid	40.45 µg/L No EPA limit set worst single sample: 78 µg/L	92/94	SYR4	2013–2019
Trichloroacetic Acid	96 µg/L No EPA limit set worst single sample: 140 µg/L	91/94	SYR4	2013–2019
Bromodichloromethane	5.5 µg/L No EPA limit set worst single sample: 16 µg/L	51/94	SYR4	2013–2019
Lead	0.0110 mg/L 73% of the EPA limit 0.0150 mg/L	31/31	LCR	2025
Bromoform	23.2 µg/L No EPA limit set worst single sample: 29 µg/L	25/94	SYR4	2013–2019
Dibromochloromethane	8.05 µg/L No EPA limit set worst single sample: 9 µg/L	20/94	SYR4	2013–2019
Barium	111.9 µg/L 5.6% of the EPA limit 2000 µg/L worst single sample: 121 µg/L	15/20	SYR4	2012–2019
Monochloroacetic Acid	3.55 µg/L No EPA limit set worst single sample: 4 µg/L	10/94	SYR4	2013–2019
Copper	290 µg/L 22% of the EPA limit 1300 µg/L worst single sample: 410 µg/L	9/20	SYR4	2012–2019
Lead	13.63 µg/L 91% of the EPA limit 15 µg/L worst single sample: 16 µg/L	7/20	SYR4	2012–2019
Nitrate	474.6 µg/L 4.7% of the EPA limit 10000 µg/L	4/46	SYR4	2012–2019
Chromium	2.5 µg/L 2.5% of the EPA limit 100 µg/L	2/20	SYR4	2012–2019
Dibromoacetic Acid	1.95 µg/L No EPA limit set worst single sample: 2 µg/L	2/94	SYR4	2013–2019
Monobromoacetic Acid	1 µg/L No EPA limit set	2/94	SYR4	2013–2019
Nitrate-Nitrite	300 µg/L 3% of the EPA limit 10000 µg/L	2/8	SYR4	2017–2019

38 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAsbestosAtrazineBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateEthylbenzeneFluorideLassoMercuryNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: AVUSUGLO-AHIA, BRIGHT
Phone: 559-565-3749
Email: [email protected]

Frequently asked questions about Nps-Wolverton

Is Nps-Wolverton tap water safe to drink?

EPA monitoring detected 18 contaminants in Nps-Wolverton'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 Nps-Wolverton's water?

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

How many people does Nps-Wolverton serve?

Nps-Wolverton reports serving 2,940 people in California, per its EPA record.

Has Nps-Wolverton had any water quality violations?

The EPA has 300 violations on file for Nps-Wolverton, of which 283 are health-based (a contaminant limit or required treatment was breached) and 1 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.