Public water system · WI6490275

Active

Wi Dnr Gov Knowles Trade River Equestrian Campground

At a glance

Wi Dnr Gov Knowles Trade River Equestrian Campground (PWSID WI6490275) is an active transient non-community water system in Polk County, Wisconsin. It reports serving 28 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in September 2015.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWI6490275

System typeTransient non-community water system

Activity statusActive

Population served28

Service connections1

Primary water sourceGroundwater

Owner typeState government

Primacy agencyWI state drinking water program

City servedGrantsburg

StateWisconsin

ZIP—

CountyPolk County

How does Wi Dnr Gov Knowles Trade River Equestrian Campground compare with other water systems in Polk County?

By EPA's size categories, Wi Dnr Gov Knowles Trade River Equestrian Campground is a very small system (500 people or fewer). Polk County has 187 active public water systems. Its population served is well below the county average of 121 people per system, and accounts for 0.1% of the 22,690 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Wi Dnr Gov Knowles Trade River Equestrian Campground is well below that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Wisconsin has 9,112 active transient non-community water systems, 82% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.

Who owns and regulates Wi Dnr Gov Knowles Trade River Equestrian Campground?

EPA lists Wi Dnr Gov Knowles Trade River Equestrian Campground as owned by a state government. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 187 active systems in Polk County (2.1%) are also owned by a state government.

Does Wi Dnr Gov Knowles Trade River Equestrian Campground have drinking water violations?

EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in September 2015. The violations listed here began between January 2013 and September 2015. By type: 3 monitoring and reporting, 2 contaminant level above the legal limit and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 7 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
2015-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2015-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2014-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2013-11-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2013-10-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2013-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2013-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved

All 7 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.

Wi Dnr Gov Knowles Trade River Equestrian Campground: frequently asked questions

Who runs Wi Dnr Gov Knowles Trade River Equestrian Campground?

Wi Dnr Gov Knowles Trade River Equestrian Campground (PWSID WI6490275) is a transient non-community water system owned by a state government. It is regulated by the WI state drinking water program.

How many people does Wi Dnr Gov Knowles Trade River Equestrian Campground serve?

Wi Dnr Gov Knowles Trade River Equestrian Campground reports serving 28 people through 1 service connection in Polk County, Wisconsin.

Where does Wi Dnr Gov Knowles Trade River Equestrian Campground 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 Wi Dnr Gov Knowles Trade River Equestrian Campground have any drinking water violations?

EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in September 2015. 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 Wi Dnr Gov Knowles Trade River Equestrian Campground'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 7 violations for this system; 2 are health-based, and the most recent began in September 2015. For current results, consult EPA ECHO, or the WI state drinking water program.

Where can I find Wi Dnr Gov Knowles Trade River Equestrian Campground's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Wi Dnr Gov Knowles Trade River Equestrian Campground is a 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 Polk County

Water system	County	Population served	Type	Source
Amery Waterworks	Polk	2,962	Community	Groundwater
Osceola Waterworks	Polk	2,680	Community	Groundwater
St Croix Falls Waterworks	Polk	2,079	Community	Groundwater
Frederic Waterworks	Polk	1,241	Community	Groundwater
Luck Waterworks	Polk	1,150	Community	Groundwater
Clear Lake Waterworks	Polk	1,061	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, “Wi Dnr Gov Knowles Trade River Equestrian Campground, PWSID WI6490275, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wi-dnr-gov-knowles-trade-river-equestrian-campground-wi6490275 (data as of October 1, 2026).