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Public water system · IA6715711

Active

Timber Ridge Lodge Recreation, Ltd.

At a glance

Timber Ridge Lodge Recreation, Ltd. (PWSID IA6715711) is an active transient non-community water system in Monona County, Iowa. It reports serving 250 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in May 2018.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

250

Service connections

2

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDIA6715711
System typeTransient non-community water system
Activity statusActive
Population served250
Service connections2
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyIA state drinking water program
City servedCastana
StateIowa
ZIP—
CountyMonona County

How does Timber Ridge Lodge Recreation, Ltd. compare with other water systems in Monona County?

By EPA's size categories, Timber Ridge Lodge Recreation, Ltd. is a very small system (500 people or fewer). Monona County has 14 active public water systems, and Timber Ridge Lodge Recreation, Ltd. is the 5th-largest of them by population served. Its population served is about half of the county average of 462 people per system, and accounts for 3.9% of the 6,465 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Timber Ridge Lodge Recreation, Ltd. is about 74% 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. Iowa has 626 active transient non-community water systems, 34% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.

Who owns and regulates Timber Ridge Lodge Recreation, Ltd.?

EPA lists Timber Ridge Lodge Recreation, Ltd. as privately owned. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 14 active systems in Monona County (29%) are also privately owned.

Does Timber Ridge Lodge Recreation, Ltd. have drinking water violations?

EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in May 2018. The violations listed here began between April 1981 and May 2018. By type: 4 monitoring and reporting, 3 monitoring, 2 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 10 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

BeganViolationContaminant or ruleHealth-basedStatus
2018-05-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2017-10-24Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2017-10-24Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2017-06-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2017-06-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2011-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2009-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2009-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2004-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
1995-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
1981-04-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoArchived

All 11 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.

Timber Ridge Lodge Recreation, Ltd.: frequently asked questions

Who runs Timber Ridge Lodge Recreation, Ltd.?

Timber Ridge Lodge Recreation, Ltd. (PWSID IA6715711) is a transient non-community water system privately owned. It is regulated by the IA state drinking water program.

How many people does Timber Ridge Lodge Recreation, Ltd. serve?

Timber Ridge Lodge Recreation, Ltd. reports serving 250 people through 2 service connections in Monona County, Iowa.

Where does Timber Ridge Lodge Recreation, Ltd. 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 Timber Ridge Lodge Recreation, Ltd. have any drinking water violations?

EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in May 2018. 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 Timber Ridge Lodge Recreation, Ltd.'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 11 violations for this system; 2 are health-based, and the most recent began in May 2018. For current results, consult EPA ECHO, or the IA state drinking water program.

Where can I find Timber Ridge Lodge Recreation, Ltd.'s water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Timber Ridge Lodge Recreation, Ltd. 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 Monona County

Water systemCountyPopulation servedTypeSource
Onawa Municipal Water PlantMonona2,906CommunityGroundwater
Mapleton Municipal Water PlantMonona1,124CommunityGroundwater
Whiting Water SupplyMonona727CommunityGroundwater
Ute Water SupplyMonona338CommunityGroundwater
Onawa KoaMonona250Transient non-communityGroundwater
Blencoe Municipal WaterworksMonona224CommunityGroundwater

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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, “Timber Ridge Lodge Recreation, Ltd., PWSID IA6715711, Iowa”, https://aquacensus.com/water-systems/iowa/timber-ridge-lodge-recreation-ltd-ia6715711 (data as of October 1, 2026).