Public water system · MN1340006
ActivePennock
At a glance
Pennock (PWSID MN1340006) is an active community water system in Kandiyohi County, Minnesota. It reports serving 492 people through 202 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; 1 is health-based, and the most recent began in July 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
492
Service connections
202
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Pennock compare with other water systems in Kandiyohi County?
By EPA's size categories, Pennock is a very small system (500 people or fewer). Kandiyohi County has 73 active public water systems. Its population served is roughly in line with the county average of 488 people per system, and accounts for 1.4% of the 35,644 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 Pennock 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 Pennock?
EPA lists Pennock 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. 14 of the 73 active systems in Kandiyohi County (19%) are also owned by a local government.
Does Pennock have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2007. The violations listed here began between January 1993 and July 2007. By type: 4 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (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 |
|---|---|---|---|---|
| 2007-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2001-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Pennock: frequently asked questions
Who runs Pennock?
Pennock (PWSID MN1340006) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Pennock serve?
Pennock reports serving 492 people through 202 service connections in Kandiyohi County, Minnesota.
Where does Pennock 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 Pennock have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2007. 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 Pennock'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; 1 is health-based, and the most recent began in July 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Pennock's water quality report?
As a community water system, Pennock 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 Kandiyohi County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Willmar | Kandiyohi | 21,045 | Community | Groundwater |
| Glacial Lakes Sanitary Sewer/Water Dist | Kandiyohi | 1,335 | Community | Groundwater |
| New London | Kandiyohi | 1,319 | Community | Purchased groundwater |
| Spicer | Kandiyohi | 1,225 | Community | Purchased groundwater |
| Atwater | Kandiyohi | 1,133 | Community | Groundwater |
| Sibley State Park | Kandiyohi | 987 | Transient non-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, “Pennock, PWSID MN1340006, Minnesota”, https://aquacensus.com/water-systems/minnesota/pennock-mn1340006 (data as of October 1, 2026).