Public water system · WI7720425
ActiveNasonville Elementary School
At a glance
Nasonville Elementary School (PWSID WI7720425) is an active non-transient non-community water system in Wood County, Wisconsin. It reports serving 350 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; none is health-based, and the most recent began in September 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
350
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Nasonville Elementary School compare with other water systems in Wood County?
By EPA's size categories, Nasonville Elementary School is a very small system (500 people or fewer). Wood County has 148 active public water systems. Its population served is about 12% below the county average of 396 people per system, and accounts for 0.6% of the 58,534 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Nasonville Elementary School is about 19% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Wisconsin has 891 active non-transient non-community water systems, 8.1% 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 Nasonville Elementary School?
EPA lists Nasonville Elementary School 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. 3 of the 148 active systems in Wood County (2%) are also owned by a state government.
Does Nasonville Elementary School have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in September 2022. The violations listed here began between January 1994 and September 2022. By type: 7 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 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 |
|---|---|---|---|---|
| 2022-09-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-01-01 | 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.
Nasonville Elementary School: frequently asked questions
Who runs Nasonville Elementary School?
Nasonville Elementary School (PWSID WI7720425) is a non-transient non-community water system owned by a state government. It is regulated by the WI state drinking water program.
How many people does Nasonville Elementary School serve?
Nasonville Elementary School reports serving 350 people through 1 service connection in Wood County, Wisconsin.
Where does Nasonville Elementary School 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 Nasonville Elementary School have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in September 2022. 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 Nasonville Elementary School'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; none is health-based, and the most recent began in September 2022. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Nasonville Elementary School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Nasonville Elementary School is a non-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 Wood County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wis Rapids Water Works & Lighting Comm | Wood | 20,000 | Community | Groundwater |
| Marshfield Utilities | Wood | 18,815 | Community | Groundwater |
| Nekoosa Waterworks | Wood | 2,394 | Community | Groundwater |
| Port Edwards Water Utility | Wood | 1,866 | Community | Groundwater |
| Biron Water Utility | Wood | 879 | Community | Groundwater |
| Pittsville Waterworks | Wood | 800 | 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, “Nasonville Elementary School, PWSID WI7720425, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/nasonville-elementary-school-wi7720425 (data as of October 1, 2026).