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Tap water quality report

Twilight Wc

EPA monitoring tested this supplier for 68 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
8
detected
78
people served
15
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water
Ownership
Private
Counties served
La Plata

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.

15
health-based violations
51
violations on file
3
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Resolved 2017-06-02
TT Health-based Unaddressed 2017-06-02
TT Health-based Unaddressed 2017-06-02

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
185 µg/L 1.9%
of the EPA limit 10000 µg/L
 20/20 SYR4 2014–2019
Nitrate-Nitrite
175.1 µg/L 1.8%
of the EPA limit 10000 µg/L
worst single sample: 185 µg/L
10/10 SYR4 2014–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2025
Barium
90.015 µg/L 4.5%
of the EPA limit 2000 µg/L
worst single sample: 90.6 µg/L
4/4 SYR4 2019
Combined Radium (-226 And -228)
2.4645 pCi/L 49%
of the EPA limit 5 pCi/L
worst single sample: 2.67 pCi/L
4/4 SYR4 2019
Chromium
2.15 µg/L 2.2%
of the EPA limit 100 µg/L
worst single sample: 2.2 µg/L
3/4 SYR4 2019
Gross Alpha, Excl. Radon And U
6.78 pCi/L 45%
of the EPA limit 15 pCi/L
worst single sample: 7.2 pCi/L
3/4 SYR4 2019
Di(2-ethylhexyl) Phthalate
0.8000 µg/L 13%
of the EPA limit 6 µg/L
 1/4 SYR4 2019
60 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 TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WINTERS, SNOWIE
Phone
970-247-8299
Email
[email protected]

Frequently asked questions about Twilight Wc

Is Twilight Wc tap water safe to drink?

EPA monitoring detected 8 contaminants in Twilight Wc'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 Twilight Wc's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Lead, Barium, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Twilight Wc serve?

Twilight Wc reports serving 78 people in Colorado, per its EPA record.

Has Twilight Wc had any water quality violations?

The EPA has 51 violations on file for Twilight Wc, of which 15 are health-based (a contaminant limit or required treatment was breached) and 3 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.