Public water system · WI7340311
ActiveU S F S Ada Lake L10 New Pump
At a glance
U S F S Ada Lake L10 New Pump (PWSID WI7340311) is an active transient non-community water system in Langlade County, Wisconsin. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in August 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does U S F S Ada Lake L10 New Pump compare with other water systems in Langlade County?
By EPA's size categories, U S F S Ada Lake L10 New Pump is a very small system (500 people or fewer). Langlade County has 117 active public water systems. Its population served is well below the county average of 165 people per system, and accounts for 0.3% of the 19,356 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 U S F S Ada Lake L10 New Pump is about 65% 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 U S F S Ada Lake L10 New Pump?
EPA lists U S F S Ada Lake L10 New Pump as owned by the federal 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. 2 of the 117 active systems in Langlade County (1.7%) are also owned by the federal government.
Does U S F S Ada Lake L10 New Pump have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in August 2014. The violations listed here began between July 1995 and August 2014. By type: 9 contaminant level above the legal limit, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (11 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 |
|---|---|---|---|---|
| 2014-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-08-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2011-07-28 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-04-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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 |
| 1997-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
U S F S Ada Lake L10 New Pump: frequently asked questions
Who runs U S F S Ada Lake L10 New Pump?
U S F S Ada Lake L10 New Pump (PWSID WI7340311) is a transient non-community water system owned by the federal government. It is regulated by the WI state drinking water program.
How many people does U S F S Ada Lake L10 New Pump serve?
U S F S Ada Lake L10 New Pump reports serving 50 people through 1 service connection in Langlade County, Wisconsin.
Where does U S F S Ada Lake L10 New Pump 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 U S F S Ada Lake L10 New Pump have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in August 2014. 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 U S F S Ada Lake L10 New Pump'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. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in August 2014. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find U S F S Ada Lake L10 New Pump's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. U S F S Ada Lake L10 New Pump 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 Langlade County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Antigo Waterworks | Langlade | 7,780 | Community | Groundwater |
| Northwoods Inn | Langlade | 700 | Transient non-community | Groundwater |
| Scouting America Camp Mkjw East Camp 1 | Langlade | 650 | Transient non-community | Groundwater |
| Scouting America Mkjw West Camp 2 | Langlade | 450 | Transient non-community | Groundwater |
| Scouting America Camp Mkjw West Camp 1 | Langlade | 450 | Transient non-community | Groundwater |
| Silver Birch Ranch Dorms | Langlade | 422 | 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, “U S F S Ada Lake L10 New Pump, PWSID WI7340311, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/u-s-f-s-ada-lake-l10-new-pump-wi7340311 (data as of October 1, 2026).