Public water system · MN1270076
ActiveCurtis Flats
At a glance
Curtis Flats (PWSID MN1270076) is an active community water system in Hennepin County, California. It reports serving 33 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
33
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Curtis Flats compare with other water systems in Hennepin County?
By EPA's size categories, Curtis Flats is a very small system (500 people or fewer). Hennepin County has 1 active public water system, and Curtis Flats is the largest of them by population served. Its population served is roughly in line with the county average of 33 people per system, and accounts for 100% of the 33 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Curtis Flats 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. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Curtis Flats?
EPA lists Curtis Flats 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. 1 of the 1 active systems in Hennepin County (100%) are also privately owned.
Does Curtis Flats have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2021. The violations listed here began between January 2014 and October 2021. By type: 1 monitoring and 1 monitoring and reporting. The contaminants or rules involved are Revised Total Coliform Rule and Lead and Copper Rule. 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 |
|---|---|---|---|---|
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2014-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | 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.
Curtis Flats: frequently asked questions
Who runs Curtis Flats?
Curtis Flats (PWSID MN1270076) is a community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Curtis Flats serve?
Curtis Flats reports serving 33 people through 18 service connections in Hennepin County, California.
Where does Curtis Flats 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 Curtis Flats have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2021. 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 Curtis Flats' 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; none is health-based, and the most recent began in October 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Curtis Flats' water quality report?
As a community water system, Curtis Flats 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.
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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, “Curtis Flats, PWSID MN1270076, California”, https://aquacensus.com/water-systems/california/curtis-flats-mn1270076 (data as of October 1, 2026).