MERRILL WATERWORKS
PWSID: WI7350123 · Merrill, WI · Serves 9,661 people
According to EPA Safe Drinking Water Information System (SDWIS), MERRILL WATERWORKS (PWSID WI7350123) in Merrill, WI is listed as a CWS water system covering about 9,661 people. The same extract lists 1 health-based violation record spanning 2025-2025. Those 1 health-based row for MERRILL WATERWORKS cover contaminants such as Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
MERRILL WATERWORKS has 1 health-based violation record 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. 1 distinct EPA contaminant code appears in this system's record, including Revised Total Coliform Rule. Recorded violations span 2025–2025. Day-to-day primacy enforcement for this system runs through the Wisconsin 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 Wisconsin state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- WI7350123
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Merrill, WI
- Population Served
- 9,661
- Health Violations
- Yes (1)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Revised Total Coliform Rule | 1 | 1 |
Violation History (1)
| Contaminant | Health | Date |
|---|---|---|
| Revised Total Coliform Rule | Yes | Oct 17, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for MERRILL WATERWORKS?
How many people does MERRILL WATERWORKS serve?
What violations does MERRILL WATERWORKS have?
What contaminants have been found in MERRILL WATERWORKS water?
Compare beyond Wisconsin
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MERRILL WATERWORKS on cumulative violation count (1) and EPA-reported population served (9,661). Violation-count peers include CHOCTAW - CONEHATTA, CHOCTAW - PEARL RIVER, CHOCTAW - TUCKER. Population peers include CLARK-EDGAR RWD, CHURCH CREEK (AWC), BYRON.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
MERRILL WATERWORKS (WI7350123) is drawn from EPA SDWIS. Nearby county systems in this extract include TOMAHAWK WATERWORKS; LINCOLN HILLS SCHOOL. Health-based rows (1 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.