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Tap water quality report

Shell Town Water Improvement District

EPA monitoring tested this supplier for 14 contaminants and detected 2. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
2
detected
120
people served
0
health-based violations
Wyoming rankingsLead in WyomingPFAS in Wyoming
Water source
GWP
Ownership
Private
Counties served
Big Horn

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.

0
health-based violations
3
violations on file
1
still open
ViolationTypeStatusPeriod
Other Monitoring Unaddressed 2016-07-01
MR Monitoring Resolved 2001-01-01
MR Monitoring Resolved 2001-01-01

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
Copper
127.5 µg/L 9.8%
of the EPA limit 1300 µg/L
worst single sample: 150 µg/L
10/10 SYR4 2016–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2025
12 contaminants tested, none detected
BromodichloromethaneBromoformChloroformDibromoacetic AcidDibromochloromethaneDichloroacetic AcidLeadMonobromoacetic AcidMonochloroacetic AcidTTHMTotal Haloacetic Acids (HAA5)Trichloroacetic Acid

Utility contact

Contact
TYRRELL, PATTY
Phone
307-765-2289
Email
[email protected]

Frequently asked questions about Shell Town Water Improvement District

Is Shell Town Water Improvement District tap water safe to drink?

EPA monitoring detected 2 contaminants in Shell Town Water Improvement 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 Shell Town Water Improvement District's water?

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

How many people does Shell Town Water Improvement District serve?

Shell Town Water Improvement District reports serving 120 people in Wyoming, per its EPA record.

Has Shell Town Water Improvement District had any water quality violations?

The EPA has 3 violations on file for Shell Town Water Improvement District, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.