Is Nps Callville Bay Tap Water Safe? Quality Report

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

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

114

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2010-01-01 → 2010-03-31
MCL	Health-based	Resolved	2010-01-01 → 2010-03-31
MCL	Health-based	Resolved	2010-01-01 → 2010-03-31
MCL	Health-based	Resolved	2010-01-01 → 2010-03-31
MCL	Health-based	Resolved	2009-10-01 → 2009-12-31
MCL	Health-based	Resolved	2009-10-01 → 2009-12-31
MCL	Health-based	Resolved	2009-10-01 → 2009-12-31
MCL	Health-based	Resolved	2009-10-01 → 2009-12-31
MCL	Health-based	Resolved	2009-07-01 → 2009-09-30
MCL	Health-based	Resolved	2009-07-01 → 2009-09-30

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	27.3 µg/L No EPA limit set	44/45	SYR4	2012–2019
Chloroform	48.8 µg/L No EPA limit set	44/45	SYR4	2012–2019
Dibromochloromethane	30.6 µg/L No EPA limit set	44/45	SYR4	2012–2019
TTHM	91.7 µg/L 115% of the EPA limit, in the worst sample — 80 µg/L	43/45	SYR4	2012–2019
Bromoform	8.18 µg/L No EPA limit set	37/45	SYR4	2012–2019
Dibromoacetic Acid	5.83 µg/L No EPA limit set	34/34	SYR4	2012–2019
Dichloroacetic Acid	18.6 µg/L No EPA limit set	34/34	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	34.5 µg/L 57% of the EPA limit 60 µg/L	34/34	SYR4	2012–2019
Trichloroacetic Acid	9.52 µg/L No EPA limit set	34/34	SYR4	2012–2019
Nitrate	514 µg/L 5.1% of the EPA limit 10000 µg/L	18/18	SYR4	2012–2018
Fluoride	317 µg/L 7.9% of the EPA limit 4000 µg/L	10/10	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	10/10	LCR	2024
Barium	125 µg/L 6.3% of the EPA limit 2000 µg/L	9/9	SYR4	2012–2019
Copper	338 µg/L 26% of the EPA limit 1300 µg/L	9/9	SYR4	2012–2019
Selenium	6.49 µg/L 13% of the EPA limit 50 µg/L	9/9	SYR4	2012–2019
Arsenic	3.94 µg/L 39% of the EPA limit 10 µg/L	8/9	SYR4	2012–2019
Nitrate-Nitrite	514 µg/L 5.1% of the EPA limit 10000 µg/L	7/7	SYR4	2012–2018
Monobromoacetic Acid	3.79 µg/L No EPA limit set	6/34	SYR4	2012–2019
Monochloroacetic Acid	3.55 µg/L No EPA limit set	5/34	SYR4	2012–2019
Chromium	6.05 µg/L 6.1% of the EPA limit 100 µg/L	4/9	SYR4	2012–2019
Dalapon	1.14 µg/L 0.6% of the EPA limit 200 µg/L	3/7	SYR4	2012–2019
Antimony, Total	3 µg/L 50% of the EPA limit 6 µg/L	2/9	SYR4	2012–2019
Combined Uranium	4.23 µg/L 14% of the EPA limit 30 µg/L	2/2	SYR4	2013–2016
Xylenes, Total	14.5 µg/L 0.1% of the EPA limit 10000 µg/L	2/13	SYR4	2012–2019
Combined Radium (-226 And -228)	1.5 pCi/L 30% of the EPA limit 5 pCi/L	1/1	SYR4	2016
Ethylbenzene	1.65 µg/L 0.2% of the EPA limit 700 µg/L	1/13	SYR4	2012–2019
Gross Beta Particle Activity	1.77 pCi/L No EPA limit set	1/1	SYR4	2016

55 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: SAMMONS, ART
Email: Arthur_Samons@nps.gov

Frequently asked questions about Nps Callville Bay

Is Nps Callville Bay tap water safe to drink?

EPA monitoring detected 27 contaminants in Nps Callville Bay'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 Callville Bay's water?

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

How many people does Nps Callville Bay serve?

Nps Callville Bay reports serving 250 people in Nevada, per its EPA record.

Has Nps Callville Bay had any water quality violations?

The EPA has 114 violations on file for Nps Callville Bay, of which 46 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.