Public water system · MN1310006
ActiveColeraine
At a glance
Coleraine (PWSID MN1310006) is an active community water system in Itasca County, Minnesota. It reports serving 1,997 people through 510 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,997
Service connections
510
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Coleraine compare with other water systems in Itasca County?
By EPA's size categories, Coleraine is a small system (501 to 3,300 people). Itasca County has 228 active public water systems, and Coleraine is the 2nd-largest of them by population served. Its population served is about 15 times the county average of 136 people per system, and accounts for 6.5% of the 30,939 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active community water system reports serving 6,703 people, so Coleraine is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Minnesota has 987 active community water systems, 15% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Coleraine?
EPA lists Coleraine as owned by a local government. The MN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 19 of the 228 active systems in Itasca County (8.3%) are also owned by a local government.
Does Coleraine have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2022. The violations listed here began between May 1991 and October 2022. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 3 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1998-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Coleraine: frequently asked questions
Who runs Coleraine?
Coleraine (PWSID MN1310006) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Coleraine serve?
Coleraine reports serving 1,997 people through 510 service connections in Itasca County, Minnesota.
Where does Coleraine get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Coleraine have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Coleraine's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Coleraine's water quality report?
As a community water system, Coleraine must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Itasca County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Grand Rapids | Itasca | 11,346 | Community | Groundwater |
| Keewatin | Itasca | 1,068 | Community | Groundwater |
| Cohasset Municipal Water System | Itasca | 1,000 | Community | Groundwater |
| Nashwauk | Itasca | 971 | Community | Groundwater |
| Deer River | Itasca | 942 | Community | Groundwater |
| Bovey | Itasca | 821 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Coleraine, PWSID MN1310006, Minnesota”, https://aquacensus.com/water-systems/minnesota/coleraine-mn1310006 (data as of October 1, 2026).