Public water system · IA6739949
ActiveLewis and Clark State Park
At a glance
Lewis and Clark State Park (PWSID IA6739949) is an active transient non-community water system in Monona County, Iowa. It reports serving 67 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
67
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lewis and Clark State Park compare with other water systems in Monona County?
By EPA's size categories, Lewis and Clark State Park is a very small system (500 people or fewer). Monona County has 14 active public water systems. Its population served is well below the county average of 462 people per system, and accounts for 1% 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 Lewis and Clark State Park is about half of 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 Lewis and Clark State Park?
EPA lists Lewis and Clark State Park as owned by a state government. 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. 1 of the 14 active systems in Monona County (7.1%) are also owned by a state government.
Does Lewis and Clark State Park have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. The violations listed here began between April 1994 and October 2024. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Nitrate (5 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-28 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2023-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2000-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1995-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1994-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | 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.
Lewis and Clark State Park: frequently asked questions
Who runs Lewis and Clark State Park?
Lewis and Clark State Park (PWSID IA6739949) is a transient non-community water system owned by a state government. It is regulated by the IA state drinking water program.
How many people does Lewis and Clark State Park serve?
Lewis and Clark State Park reports serving 67 people through 1 service connection in Monona County, Iowa.
Where does Lewis and Clark State Park 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 Lewis and Clark State Park 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 October 2024. 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 Lewis and Clark State Park'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 October 2024. For current results, consult EPA ECHO, or the IA state drinking water program.
Where can I find Lewis and Clark State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lewis and Clark State Park 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 system | County | Population served | Type | Source |
|---|---|---|---|---|
| Onawa Municipal Water Plant | Monona | 2,906 | Community | Groundwater |
| Mapleton Municipal Water Plant | Monona | 1,124 | Community | Groundwater |
| Whiting Water Supply | Monona | 727 | Community | Groundwater |
| Ute Water Supply | Monona | 338 | Community | Groundwater |
| Onawa Koa | Monona | 250 | Transient non-community | Groundwater |
| Timber Ridge Lodge Recreation, Ltd. | Monona | 250 | 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, “Lewis and Clark State Park, PWSID IA6739949, Iowa”, https://aquacensus.com/water-systems/iowa/lewis-and-clark-state-park-ia6739949 (data as of October 1, 2026).