Is Oak Forest Wsc Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Hays

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
Other	Monitoring	Resolved	2025-07-01
Other	Monitoring	Resolved	2025-07-01
MR	Monitoring	Resolved	2014-12-30
MR	Monitoring	Resolved	2014-12-30
MR	Monitoring	Resolved	2013-10-01
MR	Monitoring	Resolved	2012-10-01
Other	Monitoring	Resolved	2009-01-02
MR	Monitoring	Resolved	2008-10-01 → 2008-12-31
MR	Monitoring	Resolved	2008-10-01 → 2008-12-31
MR	Monitoring	Resolved	2008-10-01 → 2008-12-31

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
Copper	1450 µg/L 112% of the EPA limit, at the 95th percentile of samples — 1300 µg/L worst single sample: 2000 µg/L	46/48	SYR4	2013–2018
Nitrate	1350 µg/L 14% of the EPA limit 10000 µg/L	18/24	SYR4	2012–2019
Lead	3.38 µg/L 23% of the EPA limit 15 µg/L worst single sample: 4 µg/L	9/48	SYR4	2013–2018
Barium	24.685 µg/L 1.2% of the EPA limit 2000 µg/L worst single sample: 24.7 µg/L	4/4	SYR4	2013–2019
Fluoride	1967 µg/L 49% of the EPA limit 4000 µg/L worst single sample: 2030 µg/L	4/4	SYR4	2013–2019
Combined Radium (-226 And -228)	2.954 pCi/L 59% of the EPA limit 5 pCi/L worst single sample: 3.06 pCi/L	3/3	SYR4	2012–2018
Gross Beta Particle Activity	19.52 pCi/L No EPA limit set worst single sample: 19.6 pCi/L	3/3	SYR4	2012–2018
Nitrate-Nitrite	1222 µg/L 12% of the EPA limit 10000 µg/L worst single sample: 1350 µg/L	3/5	SYR4	2012–2015
Bromoform	1.19 µg/L No EPA limit set worst single sample: 1.2 µg/L	2/10	SYR4	2013–2019
Chromium	1.988 µg/L 2% of the EPA limit 100 µg/L worst single sample: 2 µg/L	2/4	SYR4	2013–2019
Di(2-ethylhexyl) Phthalate	0.1339 µg/L 2.2% of the EPA limit 6 µg/L worst single sample: 0.1350 µg/L	2/4	SYR4	2013–2019
Dibromochloromethane	1.68 µg/L No EPA limit set worst single sample: 1.7 µg/L	2/10	SYR4	2013–2019
Gross Alpha, Excl. Radon And U	13.735 pCi/L 92% of the EPA limit 15 pCi/L worst single sample: 13.9 pCi/L	2/2	SYR4	2015–2018
Selenium	2.1525 µg/L 4.3% of the EPA limit 50 µg/L worst single sample: 2.2 µg/L	2/4	SYR4	2013–2019
Bromodichloromethane	0.5000 µg/L No EPA limit set	1/10	SYR4	2013–2019
Cyanide	15.7 µg/L 7.9% of the EPA limit 200 µg/L	1/3	SYR4	2013–2019
Lead	0.00060 mg/L 4% of the EPA limit 0.0150 mg/L	1/1	LCR	2024
Xylenes, Total	2.2 µg/L 0% of the EPA limit 10000 µg/L	1/8	SYR4	2013–2019

61 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BLAZI, ANTHONY
Phone: 512-894-3322
Email: [email protected]

Frequently asked questions about Oak Forest Wsc

Is Oak Forest Wsc tap water safe to drink?

EPA monitoring detected 18 contaminants in Oak Forest Wsc'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 Oak Forest Wsc's water?

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

How many people does Oak Forest Wsc serve?

Oak Forest Wsc reports serving 339 people in Texas, per its EPA record.

Has Oak Forest Wsc had any water quality violations?

The EPA has 34 violations on file for Oak Forest Wsc, of which 0 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.