Is Wilson Mesa Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: San Miguel

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

265

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	1999-05-01 → 1999-05-31
TT	Health-based	Resolved	1999-05-01 → 1999-05-31
TT	Health-based	Resolved	1999-05-01 → 1999-05-31
TT	Health-based	Resolved	1998-06-01 → 1998-06-30
TT	Health-based	Resolved	1998-06-01 → 1998-06-30
TT	Health-based	Resolved	1998-06-01 → 1998-06-30
TT	Health-based	Resolved	1998-05-01 → 1998-05-31
TT	Health-based	Resolved	1998-05-01 → 1998-05-31
TT	Health-based	Resolved	1998-05-01 → 1998-05-31
TT	Health-based	Resolved	1997-06-01 → 1997-06-30

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 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
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	22/22	LCR	2025
TTHM	72.39 µg/L 90% of the EPA limit 80 µg/L worst single sample: 81.4 µg/L	18/20	SYR4	2012–2019
Nitrate	210 µg/L 2.1% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Chloroform	55.18 µg/L No EPA limit set worst single sample: 69.6 µg/L	15/17	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	37.25 µg/L 62% of the EPA limit 60 µg/L worst single sample: 45.3 µg/L	15/16	SYR4	2012–2019
Bromodichloromethane	7.25 µg/L No EPA limit set worst single sample: 10.6 µg/L	11/17	SYR4	2012–2019
Dichloroacetic Acid	22.465 µg/L No EPA limit set worst single sample: 25.3 µg/L	10/11	SYR4	2015–2019
Dibromochloromethane	2.26 µg/L No EPA limit set worst single sample: 2.4 µg/L	8/17	SYR4	2012–2019
Trichloroacetic Acid	16 µg/L No EPA limit set worst single sample: 16.9 µg/L	7/11	SYR4	2015–2019
Bromoform	0.8115 µg/L No EPA limit set worst single sample: 0.8400 µg/L	4/17	SYR4	2012–2019
Monochloroacetic Acid	3 µg/L No EPA limit set	2/11	SYR4	2015–2019
Barium	14 µg/L 0.7% of the EPA limit 2000 µg/L	1/1	SYR4	2014
Combined Radium (-226 And -228)	0.2000 pCi/L 4% of the EPA limit 5 pCi/L	1/1	SYR4	2014
Dibromoacetic Acid	1.4 µg/L No EPA limit set	1/11	SYR4	2015–2019
Gross Alpha, Excl. Radon And U	0.2000 pCi/L 1.3% of the EPA limit 15 pCi/L	1/1	SYR4	2014
Hexachlorocyclopentadiene	0.1700 µg/L 0.3% of the EPA limit 50 µg/L	1/10	SYR4	2012–2019
Nitrate-Nitrite	170 µg/L 1.7% of the EPA limit 10000 µg/L	1/1	SYR4	2012
Selenium	1.1 µg/L 2.2% of the EPA limit 50 µg/L	1/1	SYR4	2014

59 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: ELLINWOOD, WILLIAM
Phone: 970-250-2892
Email: [email protected]

Frequently asked questions about Wilson Mesa

Is Wilson Mesa tap water safe to drink?

EPA monitoring detected 18 contaminants in Wilson Mesa'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 Wilson Mesa's water?

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

How many people does Wilson Mesa serve?

Wilson Mesa reports serving 290 people in Colorado, per its EPA record.

Has Wilson Mesa had any water quality violations?

The EPA has 265 violations on file for Wilson Mesa, of which 16 are health-based (a contaminant limit or required treatment was breached) and 2 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.