YNP-OLD FAITHFUL
PWSID: WY5680085 · Yellowstone, WY · Serves 7,675 people
YNP-OLD FAITHFUL has 25 health-based violations out of 25 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
YNP-OLD FAITHFUL (PWSID WY5680085) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 7,675 people in Yellowstone, WY, and is subject to primacy enforcement by the Wyoming drinking-water program.
The system's federal compliance record contains 25 total violations, with 25 classified as health-based (MCL exceedances or treatment-technique failures). 4 distinct contaminants have been cited, including Barium, Combined Radium 226/228, Turbidity. Recorded violations span 2016–2024.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Wyoming state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- WY5680085
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Yellowstone, WY
- Population Served
- 7,675
- Health Violations
- Yes (25)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Barium | 17 | 17 |
| Combined Radium 226/228 | 4 | 4 |
| Turbidity | 3 | 3 |
| Atrazine | 1 | 1 |
Violation History (25)
| Contaminant | Health | Date |
|---|---|---|
| Combined Radium 226/228 | Yes | Jul 1, 2024 |
| Combined Radium 226/228 | Yes | Jun 1, 2024 |
| Combined Radium 226/228 | Yes | Mar 1, 2024 |
| Combined Radium 226/228 | Yes | Nov 30, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Atrazine | Yes | Sep 17, 2022 |
| Turbidity | Yes | Jun 1, 2022 |
| Turbidity | Yes | Jun 1, 2022 |
| Turbidity | Yes | Jun 1, 2022 |
| Barium | Yes | Jan 1, 2020 |
| Barium | Yes | Jan 1, 2020 |
| Barium | Yes | Jan 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
Frequently Asked Questions
Is YNP-OLD FAITHFUL water safe to drink?
How many people does YNP-OLD FAITHFUL serve?
What violations does YNP-OLD FAITHFUL have?
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.