Public water system · WI3220010
ActiveLyghthouse LLC
At a glance
Lyghthouse LLC (PWSID WI3220010) is an active transient non-community water system in Grant County, Wisconsin. It reports serving 47 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
47
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lyghthouse LLC compare with other water systems in Grant County?
By EPA's size categories, Lyghthouse LLC is a very small system (500 people or fewer). Grant County has 90 active public water systems. Its population served is well below the county average of 463 people per system, and accounts for 0.1% of the 41,674 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 Lyghthouse LLC 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 Lyghthouse LLC?
EPA lists Lyghthouse LLC as privately owned. 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. 54 of the 90 active systems in Grant County (60%) are also privately owned.
Does Lyghthouse LLC have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2019. The violations listed here began between January 2019 and October 2019. By type: 1 public notice, recordkeeping or other and 1 monitoring. The contaminants or rules involved are Public Notice and Revised Total Coliform Rule. EPA lists 2 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 |
|---|---|---|---|---|
| 2019-10-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 2 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.
Lyghthouse LLC: frequently asked questions
Who runs Lyghthouse LLC?
Lyghthouse LLC (PWSID WI3220010) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Lyghthouse LLC serve?
Lyghthouse LLC reports serving 47 people through 1 service connection in Grant County, Wisconsin.
Where does Lyghthouse LLC 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 Lyghthouse LLC have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2019. 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 Lyghthouse LLC'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 2 violations for this system; none is health-based, and the most recent began in October 2019. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Lyghthouse LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lyghthouse LLC 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 Grant County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Platteville Waterworks | Grant | 12,268 | Community | Groundwater |
| Lancaster Waterworks | Grant | 3,907 | Community | Groundwater |
| Boscobel Waterworks | Grant | 3,237 | Community | Groundwater |
| Fennimore Waterworks | Grant | 2,507 | Community | Groundwater |
| Cuba City Waterworks | Grant | 2,141 | Community | Groundwater |
| Muscoda Waterworks | Grant | 1,453 | 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, “Lyghthouse LLC, PWSID WI3220010, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/lyghthouse-llc-wi3220010 (data as of October 1, 2026).