Public water system · IN2640899
ActiveIn Dunes Natl Lakeshore-Bldgs 101-119
At a glance
In Dunes Natl Lakeshore-Bldgs 101-119 (PWSID IN2640899) is an active non-transient non-community water system in Porter County, Indiana. It reports serving 80 people through 9 service connections. 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, none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
80
Service connections
9
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does In Dunes Natl Lakeshore-Bldgs 101-119 compare with other water systems in Porter County?
By EPA's size categories, In Dunes Natl Lakeshore-Bldgs 101-119 is a very small system (500 people or fewer). Porter County has 81 active public water systems. Its population served is well below the county average of 748 people per system, and accounts for 0.1% of the 60,622 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so In Dunes Natl Lakeshore-Bldgs 101-119 is well 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. Indiana has 603 active non-transient non-community water systems, 15% of the state's 3,969 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates In Dunes Natl Lakeshore-Bldgs 101-119?
EPA lists In Dunes Natl Lakeshore-Bldgs 101-119 as owned by the federal government. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 81 active systems in Porter County (7.4%) are also owned by the federal government.
Does In Dunes Natl Lakeshore-Bldgs 101-119 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 2026. The violations listed here began between January 2021 and January 2026. By type: 12 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, Carbon tetrachloride, Chlorobenzene and Trichloroethylene. 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 |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | 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.
In Dunes Natl Lakeshore-Bldgs 101-119: frequently asked questions
Who runs In Dunes Natl Lakeshore-Bldgs 101-119?
In Dunes Natl Lakeshore-Bldgs 101-119 (PWSID IN2640899) is a non-transient non-community water system owned by the federal government. It is regulated by the IN state drinking water program.
How many people does In Dunes Natl Lakeshore-Bldgs 101-119 serve?
In Dunes Natl Lakeshore-Bldgs 101-119 reports serving 80 people through 9 service connections in Porter County, Indiana.
Where does In Dunes Natl Lakeshore-Bldgs 101-119 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 In Dunes Natl Lakeshore-Bldgs 101-119 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 2026. 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 In Dunes Natl Lakeshore-Bldgs 101-119'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, none is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the IN state drinking water program.
Where can I find In Dunes Natl Lakeshore-Bldgs 101-119's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. In Dunes Natl Lakeshore-Bldgs 101-119 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 Porter County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Valparaiso Department of Water Works | Porter | 36,000 | Community | Groundwater |
| Hebron Water Department | Porter | 3,724 | Community | Groundwater |
| L-A-C Utilities | Porter | 2,441 | Community | Purchased groundwater |
| Kouts Water Works | Porter | 2,028 | Community | Groundwater |
| St. Elizabeth Seton Catholic | Porter | 1,201 | Transient non-community | Groundwater |
| Ogden Dunes Water | Porter | 1,110 | Community | Purchased surface water |
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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, “In Dunes Natl Lakeshore-Bldgs 101-119, PWSID IN2640899, Indiana”, https://aquacensus.com/water-systems/indiana/in-dunes-natl-lakeshore-bldgs-101-119-in2640899 (data as of October 1, 2026).