SOUTH CHESTER WATER DIST
PWSID: MT0000007 · Chester, MT · Serves 55 people
According to EPA Safe Drinking Water Information System (SDWIS), SOUTH CHESTER WATER DIST (PWSID MT0000007) in Chester, MT is listed as a CWS water system covering about 55 people. The same extract lists 5 health-based violation records spanning 2009-2025. Those 5 health-based rows for SOUTH CHESTER WATER DIST cover contaminants such as Total Haloacetic Acids (HAA5), Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
SOUTH CHESTER WATER DIST has 5 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. 2 distinct EPA contaminant codes appear in this system's record, including Total Haloacetic Acids (HAA5), Surface Water Treatment Rule. Recorded violations span 2009–2025. 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)
- MT0000007
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Chester, MT
- Population Served
- 55
- Health Violations
- Yes (5)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 4 | 4 |
| Surface Water Treatment Rule | 1 | 1 |
Violation History (5)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2024 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2024 |
| Surface Water Treatment Rule | Yes | Jun 1, 2009 |
Frequently Asked Questions
What does EPA SDWIS list for SOUTH CHESTER WATER DIST?
How many people does SOUTH CHESTER WATER DIST serve?
What violations does SOUTH CHESTER WATER DIST have?
What contaminants have been found in SOUTH CHESTER WATER DIST water?
Compare beyond Montana
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SOUTH CHESTER WATER DIST on cumulative violation count (5) and EPA-reported population served (55). Violation-count peers include Jemez Pueblo, Acoma Main, OMAHA TRIBE PWS.
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
SOUTH CHESTER WATER DIST (MT0000007) is drawn from EPA SDWIS. Nearby county systems in this extract include CHESTER TOWN OF; SAGE CREEK CO WATER DISTRICT; RIVERVIEW COLONY; SAGE CREEK COLONY. Health-based rows (5 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.