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Tap water quality report

Rimrock Water Company Llc

EPA monitoring tested this supplier for 5 contaminants and detected 4. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

5
contaminants tested
4
detected
365
people served
6
health-based violations
Wyoming rankingsLead in WyomingPFAS in Wyoming
Water source
Ground water
Ownership
Private
Counties served
Butte

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.

6
health-based violations
20
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2020-02-01
TT Health-based Resolved 2020-02-01
TT Health-based Resolved 2019-02-01
TT Health-based Resolved 2019-02-01
TT Health-based Resolved 2013-02-01
TT Health-based Resolved 2013-02-01
MON Monitoring Resolved 2022-10-01 → 2022-10-31
MON Monitoring Resolved 2022-10-01 → 2022-10-31
MON Monitoring Resolved 2022-10-01 → 2022-10-31
MR Monitoring Resolved 2022-10-01 → 2022-12-31

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
386.8 µg/L 30%
of the EPA limit 1300 µg/L
worst single sample: 594 µg/L
15/15 SYR4 2013–2019
Lead
2.53 µg/L 17%
of the EPA limit 15 µg/L
worst single sample: 4 µg/L
15/15 SYR4 2013–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
TTHM
1.22 µg/L 1.5%
of the EPA limit 80 µg/L
 1/3 SYR4 2013–2019
1 contaminants tested, none detected
Total Haloacetic Acids (HAA5)

Utility contact

Contact
VICTORIA DUNGEY
Phone
6058925640
Email
[email protected]

Frequently asked questions about Rimrock Water Company Llc

Is Rimrock Water Company Llc tap water safe to drink?

EPA monitoring detected 4 contaminants in Rimrock Water Company Llc'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 Rimrock Water Company Llc's water?

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

How many people does Rimrock Water Company Llc serve?

Rimrock Water Company Llc reports serving 365 people in Wyoming, per its EPA record.

Has Rimrock Water Company Llc had any water quality violations?

The EPA has 20 violations on file for Rimrock Water Company Llc, of which 6 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.