Public water system · WI1330071
ActiveBlanchardville Waterworks
At a glance
Blanchardville Waterworks (PWSID WI1330071) is an active community water system in Lafayette County, Wisconsin. It reports serving 810 people through 300 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
810
Service connections
300
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Blanchardville Waterworks compare with other water systems in Lafayette County?
By EPA's size categories, Blanchardville Waterworks is a small system (501 to 3,300 people). Lafayette County has 39 active public water systems, and Blanchardville Waterworks is the 6th-largest of them by population served. Its population served is about 186% above the county average of 284 people per system, and accounts for 7.3% of the 11,066 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 Blanchardville 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 Blanchardville Waterworks?
EPA lists Blanchardville 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. 10 of the 39 active systems in Lafayette County (26%) are also owned by a local government.
Does Blanchardville Waterworks have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2012. The violations listed here began between January 1999 and January 2012. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2012-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-06-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2004-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | No | Resolved |
| 2001-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
The 12 most recent 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.
Blanchardville Waterworks: frequently asked questions
Who runs Blanchardville Waterworks?
Blanchardville Waterworks (PWSID WI1330071) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Blanchardville Waterworks serve?
Blanchardville Waterworks reports serving 810 people through 300 service connections in Lafayette County, Wisconsin.
Where does Blanchardville 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 Blanchardville Waterworks have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 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 Blanchardville 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2012. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Blanchardville Waterworks' water quality report?
As a community water system, Blanchardville 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 Lafayette County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Darlington Waterworks | Lafayette | 2,235 | Community | Groundwater |
| Shullsburg Waterworks | Lafayette | 1,222 | Community | Groundwater |
| Belmont Waterworks | Lafayette | 991 | Community | Groundwater |
| Benton Waterworks | Lafayette | 976 | Community | Groundwater |
| Argyle Waterworks | Lafayette | 823 | Community | Groundwater |
| Lake Joy Showers and Laundry | Lafayette | 500 | 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, “Blanchardville Waterworks, PWSID WI1330071, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/blanchardville-waterworks-wi1330071 (data as of October 1, 2026).