MNIHNAPA WATER SYSTEM
PWSID: 083090047 · Harlem, MT · Serves 220 people
According to EPA Safe Drinking Water Information System (SDWIS), MNIHNAPA WATER SYSTEM (PWSID 083090047) in Harlem, MT is listed as a CWS water system covering about 220 people. The same extract lists 3 health-based violation records spanning 2014-2020. Those 3 health-based rows for MNIHNAPA WATER SYSTEM cover contaminants such as Revised Total Coliform Rule, Surface Water Treatment Rule, Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
MNIHNAPA WATER SYSTEM has 3 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Revised Total Coliform Rule, Surface Water Treatment Rule, Groundwater Rule. Recorded violations span 2014–2020. Day-to-day primacy enforcement for this system runs through the Montana drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Montana state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- 083090047
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Harlem, MT
- Population Served
- 220
- Health Violations
- Yes (3)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Revised Total Coliform Rule | 1 | 1 |
| Surface Water Treatment Rule | 1 | 1 |
| Groundwater Rule | 1 | 1 |
Violation History (3)
| Contaminant | Health | Date |
|---|---|---|
| Revised Total Coliform Rule | Yes | Aug 1, 2020 |
| Surface Water Treatment Rule | Yes | Feb 1, 2016 |
| Groundwater Rule | Yes | Jun 2, 2014 |
Frequently Asked Questions
What does EPA SDWIS list for MNIHNAPA WATER SYSTEM?
How many people does MNIHNAPA WATER SYSTEM serve?
What violations does MNIHNAPA WATER SYSTEM have?
What contaminants have been found in MNIHNAPA WATER SYSTEM water?
Compare beyond Montana
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MNIHNAPA WATER SYSTEM on cumulative violation count (3) and EPA-reported population served (220). Violation-count peers include Mohegan Tribal Utility Authority, RED CLIFF NORTH, Tesuque Pueblo.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
MNIHNAPA WATER SYSTEM (083090047) is drawn from EPA SDWIS. Nearby county systems in this extract include FORT BELKNAP AGENCY WATER SYSTEM; HAYS/WHITE COW CANYON WS; HARLEM CITY OF; PERRYS WATER SERVICE. Health-based rows (3 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.