Greycliff Rest Area Eastbound
Published drinking-water records and contacts for Greycliff Rest Area Eastbound. System MT0001957. Review sources and dates; not a real-time water assessment.
- System ID
- MT0001957
- State or territory
- MT
- Published population served
- 2500
- System type (source code)
- TNCWS
Published records and dates
- Montana selected chemical sample panels: 1 — 2026-08-19 – 2026-08-19
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| NITRATE-NITRITE | 0.70 mg/L | 2026-08-19 | EP503 / Montana selected chemical sample panels |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
13 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Ground Water Rule / Monitoring, Source Water (GWR) | 2025-09-11 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Maximum Contaminant Level Violation, E. coli (RTCR) | 2024-07-01 – 2024-07-31 | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Maximum Contaminant Level Violation, E. coli (RTCR) | 2024-06-01 – 2024-06-30 | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Maximum Contaminant Level Violation, E. coli (RTCR) | 2023-06-01 – 2023-06-30 | Resolved | Yes | 2026Q3 |
| Ground Water Rule / Monitoring, Source Water (GWR) | 2022-07-14 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Maximum Contaminant Level Violation, E. coli (RTCR) | 2022-06-01 – 2022-06-30 | Resolved | Yes | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2022-01-01 – 2022-12-31 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Maximum Contaminant Level Violation, E. coli (RTCR) | 2020-07-01 – 2020-07-31 | Resolved | Yes | 2026Q3 |
| Ground Water Rule / Monitoring, Source Water (GWR) | 2019-04-10 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2018-08-01 – 2018-08-31 | Resolved | No | 2026Q3 |
| Ground Water Rule / Monitoring, Source Water (GWR) | 2017-06-13 – — | Resolved | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2017-01-01 – 2017-12-31 | Resolved | No | 2026Q3 |
| Nitrate Rule / Maximum Contaminant Level Violation, Single Sample | 1981-01-21 – 1981-02-20 | Archived | Yes | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
- Montana selected chemical sample panels — last successful check: 2026-09-30; latest refresh needs attention; previous records retained
Administrative contact (EPA filing)
Rasmussen, Chris: 406-657-0225
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.