Big Piney, WY
Contamination score
Higher = more contaminated vs. other cities.
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Reported illness & cancer claims
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Self-reported issues
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Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
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Public water systems
Big Piney, Town Of
- PWSID:
- WY5600007
- Source:
- Ground water
- Serves:
- 445 people
Mountain Village Parks
- PWSID:
- WY5600221
- Source:
- Ground water
- Serves:
- 53 people
EPA & DEP violations
City-wide
20 violationsRevised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Mar 1, 2026 · 5 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Feb 1, 2026 · 6 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Jan 1, 2026 · 7 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Dec 1, 2025 · 8 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Nov 1, 2025 · 9 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Oct 1, 2025 · 10 months ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityAddressedConsumer Confidence Rule Other violation (Addressed).
EPA SDWIS · Other · Began Oct 1, 2025 · 10 months ago · Source ↗
Lead and Copper Rule — MR violation
medium severityAddressedLead and Copper Rule MR violation (Addressed).
EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Sep 1, 2025 · 11 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Aug 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Jul 1, 2025 · 1 year ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityAddressedConsumer Confidence Rule Other violation (Addressed).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Jun 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began May 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Apr 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Mar 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Feb 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Jan 1, 2025 · 1 year ago · Source ↗
Nitrate-Nitrite — MR violation
medium severityArchivedNitrate-Nitrite MR violation (Archived).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Dec 1, 2024 · 1 year ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.