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Tap water quality report

Vista West Improvement & Serv District

EPA monitoring tested this supplier for 78 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
12
detected
120
people served
10
health-based violations
Wyoming rankingsLead in WyomingPFAS in Wyoming
Water source
Ground water
Ownership
Private
Counties served
Crook

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.

10
health-based violations
48
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-05-01 → 2010-05-31
MCL Health-based Resolved 2010-05-01 → 2010-05-31
MCL Health-based Resolved 2010-05-01 → 2010-05-31
MCL Health-based Resolved 2003-04-01 → 2003-04-30
MCL Health-based Resolved 2003-04-01 → 2003-04-30
MCL Health-based Resolved 2003-04-01 → 2003-04-30
MCL Health-based Archived 1998-09-01 → 1998-09-30
MCL Health-based Archived 1997-11-01 → 1997-11-30
TT Health-based Archived 1995-05-01 → 1995-05-31
TT Health-based Archived 1995-04-01 → 1995-04-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate-Nitrite
260 µg/L 2.6%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
Copper
64.75 µg/L 5%
of the EPA limit 1300 µg/L
worst single sample: 67 µg/L
10/10 SYR4 2016–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2025
Arsenic
6.8 µg/L 68%
of the EPA limit 10 µg/L
worst single sample: 7 µg/L
3/3 SYR4 2012–2017
Fluoride
770 µg/L 19%
of the EPA limit 4000 µg/L
worst single sample: 800 µg/L
3/3 SYR4 2012–2017
Gross Alpha, Excl. Radon And U
4.835 pCi/L 32%
of the EPA limit 15 pCi/L
worst single sample: 5 pCi/L
2/2 SYR4 2013–2019
Lead
2.9 µg/L 19%
of the EPA limit 15 µg/L
worst single sample: 3 µg/L
2/10 SYR4 2016–2019
Bromodichloromethane
0.5000 µg/L
No EPA limit set
 1/4 SYR4 2014–2017
Chloroform
0.6800 µg/L
No EPA limit set
 1/4 SYR4 2014–2017
Combined Radium (-226 And -228)
0.5000 pCi/L 10%
of the EPA limit 5 pCi/L
 1/2 SYR4 2013–2019
Combined Uranium
1.5 µg/L 5%
of the EPA limit 30 µg/L
 1/2 SYR4 2013–2019
TTHM
1.5 µg/L 1.9%
of the EPA limit 80 µg/L
 1/4 SYR4 2014–2017
66 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, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MELICK, CHEYENNE
Phone
307-299-3544
Email
[email protected]

Frequently asked questions about Vista West Improvement & Serv District

Is Vista West Improvement & Serv District tap water safe to drink?

EPA monitoring detected 12 contaminants in Vista West Improvement & Serv District'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 Vista West Improvement & Serv District's water?

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

How many people does Vista West Improvement & Serv District serve?

Vista West Improvement & Serv District reports serving 120 people in Wyoming, per its EPA record.

Has Vista West Improvement & Serv District had any water quality violations?

The EPA has 48 violations on file for Vista West Improvement & Serv District, of which 10 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.