Public water system · MN5020125
ActiveOak Haven Church of Ham Lake
At a glance
Oak Haven Church of Ham Lake (PWSID MN5020125) is an active non-transient non-community water system in Anoka County, Minnesota. It reports serving 200 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in November 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Oak Haven Church of Ham Lake compare with other water systems in Anoka County?
By EPA's size categories, Oak Haven Church of Ham Lake is a very small system (500 people or fewer). Anoka County has 241 active public water systems. Its population served is well below the county average of 1,360 people per system, and accounts for less than 0.1% of the 327,753 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Oak Haven Church of Ham Lake is about half of that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Minnesota has 470 active non-transient non-community water systems, 7.3% 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 Oak Haven Church of Ham Lake?
EPA lists Oak Haven Church of Ham Lake as privately owned. 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. 195 of the 241 active systems in Anoka County (81%) are also privately owned.
Does Oak Haven Church of Ham Lake have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in November 2012. The violations listed here began between October 2002 and November 2012. By type: 2 contaminant level above the legal limit. The contaminants or rules involved are Arsenic and Total coliform bacteria (TCR). EPA lists 2 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2012-11-19 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2002-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Oak Haven Church of Ham Lake: frequently asked questions
Who runs Oak Haven Church of Ham Lake?
Oak Haven Church of Ham Lake (PWSID MN5020125) is a non-transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Oak Haven Church of Ham Lake serve?
Oak Haven Church of Ham Lake reports serving 200 people through 1 service connection in Anoka County, Minnesota.
Where does Oak Haven Church of Ham Lake 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 Oak Haven Church of Ham Lake have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in November 2012. 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 Oak Haven Church of Ham Lake'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 2 violations for this system; all are health-based, and the most recent began in November 2012. For current results, consult EPA ECHO, or the MN state drinking water program.
Where can I find Oak Haven Church of Ham Lake's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Oak Haven Church of Ham Lake is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Anoka County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Blaine | Anoka | 70,220 | Community | Groundwater |
| Coon Rapids | Anoka | 64,000 | Community | Groundwater |
| Fridley | Anoka | 27,476 | Community | Groundwater |
| Columbia Heights | Anoka | 22,278 | Community | Purchased surface water |
| Andover | Anoka | 21,455 | Community | Groundwater |
| Lino Lakes | Anoka | 17,859 | 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, “Oak Haven Church of Ham Lake, PWSID MN5020125, Minnesota”, https://aquacensus.com/water-systems/minnesota/oak-haven-church-of-ham-lake-mn5020125 (data as of October 1, 2026).