Is Hidden Valley Water Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Denton

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	2022-11-01 → 2022-11-30
MCL	Health-based	Resolved	2022-11-01 → 2022-11-30
MCL	Health-based	Resolved	2022-11-01 → 2022-11-30
MCL	Health-based	Resolved	2022-11-01 → 2022-11-30
MCL	Health-based	Resolved	2022-11-01 → 2022-11-30
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Archived	2021-01-01 → 2023-12-31

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
Nitrate	336.25 µg/L 3.4% of the EPA limit 10000 µg/L worst single sample: 526 µg/L	32/32	SYR4	2012–2019
Bromoform	8.83 µg/L No EPA limit set worst single sample: 15.4 µg/L	16/17	SYR4	2012–2019
Dibromochloromethane	10.64 µg/L No EPA limit set worst single sample: 14.6 µg/L	16/17	SYR4	2012–2019
Copper	113.5 µg/L 8.7% of the EPA limit 1300 µg/L worst single sample: 120 µg/L	14/14	SYR4	2012–2017
Lead	0.0128 mg/L 85% of the EPA limit 0.0150 mg/L	8/8	LCR	2025
Bromodichloromethane	9.909 µg/L No EPA limit set worst single sample: 10.2 µg/L	7/17	SYR4	2012–2019
Fluoride	1422.5 µg/L 36% of the EPA limit 4000 µg/L worst single sample: 1470 µg/L	6/6	SYR4	2012–2019
Barium	10.74 µg/L 0.5% of the EPA limit 2000 µg/L worst single sample: 11 µg/L	5/5	SYR4	2012–2018
Chloroform	12.06 µg/L No EPA limit set worst single sample: 12.2 µg/L	5/17	SYR4	2012–2019
Ethylbenzene	1.976 µg/L 0.3% of the EPA limit 700 µg/L worst single sample: 2.19 µg/L	5/14	SYR4	2012–2019
Nitrate-Nitrite	468.8 µg/L 4.7% of the EPA limit 10000 µg/L worst single sample: 526 µg/L	5/5	SYR4	2012–2019
Xylenes, Total	10.36 µg/L 0.1% of the EPA limit 10000 µg/L worst single sample: 11.4 µg/L	5/14	SYR4	2012–2019
Chromium	2.67 µg/L 2.7% of the EPA limit 100 µg/L worst single sample: 2.7 µg/L	4/5	SYR4	2012–2018
TTHM	5.039 µg/L 6.3% of the EPA limit 80 µg/L worst single sample: 5.16 µg/L	3/5	SYR4	2013–2019
Gross Alpha, Excl. Radon And U	5.87 pCi/L 39% of the EPA limit 15 pCi/L worst single sample: 6 pCi/L	2/3	SYR4	2015–2018
Lead	1.454 µg/L 9.7% of the EPA limit 15 µg/L worst single sample: 1.5 µg/L	2/14	SYR4	2012–2017
Total Haloacetic Acids (HAA5)	9.135 µg/L 15% of the EPA limit 60 µg/L worst single sample: 9.3 µg/L	2/3	SYR4	2013–2019
Dibromoacetic Acid	1.2 µg/L No EPA limit set	1/3	SYR4	2013–2019
Monobromoacetic Acid	6 µg/L No EPA limit set	1/3	SYR4	2013–2019
Monochloroacetic Acid	8.1 µg/L No EPA limit set	1/3	SYR4	2013–2019
Nitrite	67.5 µg/L 6.8% of the EPA limit 1000 µg/L	1/5	SYR4	2012–2019

58 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: FOLTZ, SCOT, W
Phone: 512-990-4400
Email: [email protected]

Frequently asked questions about Hidden Valley Water

Is Hidden Valley Water tap water safe to drink?

EPA monitoring detected 21 contaminants in Hidden Valley Water'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 Hidden Valley Water's water?

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

How many people does Hidden Valley Water serve?

Hidden Valley Water reports serving 186 people in Texas, per its EPA record.

Has Hidden Valley Water had any water quality violations?

The EPA has 35 violations on file for Hidden Valley Water, of which 5 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.