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Tap water quality report

Pioneer Water & Sewer District

EPA monitoring tested this supplier for 8 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

8
contaminants tested
3
detected
1,500
people served
0
health-based violations
Wyoming rankingsLead in WyomingPFAS in Wyoming
Water source
SWP
Ownership
Local government
Counties served
Natrona

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
15
violations on file
2
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2024-11-01 → 2024-11-30
MON Monitoring Resolved 2024-11-01 → 2024-11-30
MR Monitoring Resolved 2022-04-01 → 2022-04-30
Other Monitoring Addressed 2020-10-01
Other Monitoring Addressed 2020-10-01
MR Monitoring Resolved 2019-06-01
MR Monitoring Resolved 2019-06-01
Other Monitoring Resolved 2015-10-01
Other Monitoring Resolved 2015-10-01
Other Monitoring Resolved 2015-10-01

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
842.5 µg/L 65%
of the EPA limit 1300 µg/L
worst single sample: 890 µg/L
20/20 SYR4 2016–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Lead
7.1 µg/L 47%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
4/20 SYR4 2016–2019
5 contaminants tested, none detected
BromodichloromethaneBromoformChloroformDibromochloromethaneTTHM

Utility contact

Contact
BAYNE, LEE ANNE
Phone
307-472-7300
Email
[email protected]

Frequently asked questions about Pioneer Water & Sewer District

Is Pioneer Water & Sewer District tap water safe to drink?

EPA monitoring detected 3 contaminants in Pioneer Water & Sewer 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 Pioneer Water & Sewer District's water?

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

How many people does Pioneer Water & Sewer District serve?

Pioneer Water & Sewer District reports serving 1,500 people in Wyoming, per its EPA record.

Has Pioneer Water & Sewer District had any water quality violations?

The EPA has 15 violations on file for Pioneer Water & Sewer District, of which 0 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.