Public water system · WI7210107
ActiveCrandon Waterworks
At a glance
Crandon Waterworks (PWSID WI7210107) is an active community water system in Forest County, Wisconsin. It reports serving 1,958 people through 800 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,958
Service connections
800
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Crandon Waterworks compare with other water systems in Forest County?
By EPA's size categories, Crandon Waterworks is a small system (501 to 3,300 people). Forest County has 58 active public water systems, and Crandon Waterworks is the largest of them by population served. Its population served is about 14 times the county average of 139 people per system, and accounts for 24% of the 8,068 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Crandon Waterworks 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. Wisconsin has 1,053 active community water systems, 9.5% 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 Crandon Waterworks?
EPA lists Crandon Waterworks as owned by a local 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. 5 of the 58 active systems in Forest County (8.6%) are also owned by a local government.
Does Crandon Waterworks have drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in October 2024. The violations listed here began between December 1994 and October 2024. By type: 4 monitoring and reporting, 2 public notice, recordkeeping or other, 2 contaminant level above the legal limit, 1 reporting and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 7 as resolved, 2 as unaddressed and 1 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2024-10-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2010-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2002-07-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 10 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.
Crandon Waterworks: frequently asked questions
Who runs Crandon Waterworks?
Crandon Waterworks (PWSID WI7210107) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Crandon Waterworks serve?
Crandon Waterworks reports serving 1,958 people through 800 service connections in Forest County, Wisconsin.
Where does Crandon Waterworks 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 Crandon Waterworks have any drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in October 2024. 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 Crandon Waterworks' 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 10 violations for this system; 3 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Crandon Waterworks' water quality report?
As a community water system, Crandon Waterworks 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 Forest County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Laona Sanitary Dist | Forest | 950 | Community | Groundwater |
| Wabeno Sanitary Dist 1 | Forest | 750 | Community | Groundwater |
| Main St Eds | Forest | 350 | Transient non-community | Groundwater |
| Good Shepherd Lutheran Church | Forest | 350 | Transient non-community | Groundwater |
| Heritage Acres Hunt Club and Camp 5 Farm | Forest | 200 | Transient non-community | Groundwater |
| Campfire Bar and Grille | Forest | 200 | 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, “Crandon Waterworks, PWSID WI7210107, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/crandon-waterworks-wi7210107 (data as of October 1, 2026).