Worden Ballantine Yellowstone
MT0000022 · Groundwater influenced by surface water · 800 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →Measurements (2)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.003 mg/L
- Action level
- 0.015 mg/L
20% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 2.52 mg/L
- Action level
- 1.3 mg/L
194% of the listed benchmark
Monitoring period: Mar 31, 1999 to Sep 30, 1999
Violation history (9)
| Rule | Status | Period |
|---|---|---|
| Nitrate-NitriteHealth-based | Archived | Apr 1, 2025 to Jun 30, 2025 |
| Nitrate-NitriteHealth-based | Archived | Jan 1, 2025 to Mar 31, 2025 |
| Lead and Copper Rule | Unaddressed | Dec 30, 2024 |
| Consumer Confidence Rule | Resolved | Oct 1, 2024 to Dec 26, 2024 |
| Nitrate-NitriteHealth-based | Archived | Jan 1, 2024 to Mar 31, 2024 |
| Consumer Confidence Rule | Resolved | Jul 1, 2022 to Jul 18, 2022 |
| Lead and Copper Rule | Resolved | Dec 30, 2021 to Jan 14, 2022 |
| Nitrate-NitriteHealth-based | Archived | Apr 1, 2021 to Jun 30, 2021 |
| Surface Water Treatment RuleHealth-based | Unaddressed | Mar 22, 2021 |