Public water system · IL3137307
ActiveLost Arrow Campominium
At a glance
Lost Arrow Campominium (PWSID IL3137307) is an active transient non-community water system in Mason County, Illinois. It reports serving 223 people through 223 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
223
Service connections
223
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lost Arrow Campominium compare with other water systems in Mason County?
By EPA's size categories, Lost Arrow Campominium is a very small system (500 people or fewer). Mason County has 24 active public water systems, and Lost Arrow Campominium is the 6th-largest of them by population served. Its population served is about 40% below the county average of 371 people per system, and accounts for 2.5% of the 8,902 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Lost Arrow Campominium is about 55% above 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. Illinois has 1,703 active transient non-community water systems, 44% of the state's 3,872 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Lost Arrow Campominium?
EPA lists Lost Arrow Campominium as privately owned. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 14 of the 24 active systems in Mason County (58%) are also privately owned.
Does Lost Arrow Campominium have drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2022. The violations listed here began between July 2006 and July 2022. By type: 7 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Nitrate (8 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2022-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2020-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2020-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2018-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2018-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2009-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2006-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 10 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.
Lost Arrow Campominium: frequently asked questions
Who runs Lost Arrow Campominium?
Lost Arrow Campominium (PWSID IL3137307) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Lost Arrow Campominium serve?
Lost Arrow Campominium reports serving 223 people through 223 service connections in Mason County, Illinois.
Where does Lost Arrow Campominium 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 Lost Arrow Campominium have any drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 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 Lost Arrow Campominium'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 10 violations for this system; 2 are health-based, and the most recent began in July 2022. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Lost Arrow Campominium's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lost Arrow Campominium 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 Mason County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Havana | Mason | 2,963 | Community | Groundwater |
| Mason City | Mason | 2,393 | Community | Groundwater |
| Manito | Mason | 1,552 | Community | Groundwater |
| San Jose | Mason | 479 | Community | Groundwater |
| Easton | Mason | 325 | Community | Groundwater |
| Forest City | Mason | 222 | 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, “Lost Arrow Campominium, PWSID IL3137307, Illinois”, https://aquacensus.com/water-systems/illinois/lost-arrow-campominium-il3137307 (data as of October 1, 2026).