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Transient Non-Community Water System · PWS IA7038402

Clarks Ferry Recreation Area

Pleasant Valley, Iowa 52767 - drinking water served from groundwater sources to 52 people, tracked in EPA SDWIS and UCMR5.

52
People served
121
EPA violations
69
Health-based
Untested
UCMR5 result

The verdict

EPA records 121 drinking-water violations at Clarks Ferry Recreation Area, 57% of them health-based - above the Iowa per-system average.

121
Total EPA violations on record
57%
Health-based (MCL / treatment failure)
52
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Clarks Ferry Recreation Area

Clarks Ferry Recreation Area is a federal-owned transient non-community water system that delivers drinking water to 52 residents in Pleasant Valley, Iowa (Muscatine County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 121 total violations for this system , of which 69 (57%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 44 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 62 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Iowa, EPA tracks 1,795 public water systems serving 3,114,444 people, with 138,271 cumulative violations and 27,946 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 77 violations. Statewide, 127 of 152 UCMR5-tested systems have reported PFAS detections (83.6%).

Clarks Ferry Recreation Area's 121 violations sit above the Iowa average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
52
Total Violations
121
Health-Based Violations
69
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Federal
Connections
1
County
Muscatine
School/Daycare
No
MCL Violations
62
Monitoring Violations
44
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 62 2013
Coliform (TCR) MR 27 2013
Nitrate MR 13 2000
Groundwater Rule TT 4 2021
Revised Total Coliform Rule MON 4 2018
Revised Total Coliform Rule TT 3 2020

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Clarks Ferry Recreation Area.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID IA7038402 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Iowa Drinking Water Authority

Iowa's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find IA regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2021 Groundwater Rule TT 4 SDWIS / IA7038402 / 0700
2020 Revised Total Coliform Rule TT 3 SDWIS / IA7038402 / 8000
2018 Revised Total Coliform Rule MON 4 SDWIS / IA7038402 / 8000
2013 Coliform (TCR) MCL 62 SDWIS / IA7038402 / 3100
2013 Coliform (TCR) MR 27 SDWIS / IA7038402 / 3100
2000 Nitrate MR 13 SDWIS / IA7038402 / 1040

How Clarks Ferry Recreation Area Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Clarks Ferry Recreation Area Iowa avg Federal benchmark
Total violations 121 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 69 15.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 83.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 52 1,735 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,795 regulated public water systems in Iowa.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Clarks Ferry Recreation Area water safe to drink? ▼
Clarks Ferry Recreation Area (PWS ID: IA7038402) has 121 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 52 people using Groundwater sources.
How many people does Clarks Ferry Recreation Area serve? ▼
Clarks Ferry Recreation Area serves 52 people in Pleasant Valley, Iowa. It is a Federal-owned system using Groundwater water sources with 1 service connections.
What type of violations does Clarks Ferry Recreation Area have? ▼
Clarks Ferry Recreation Area has 121 total violations: 69 health-based violations (MCL exceedances or treatment failures), 44 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Clarks Ferry Recreation Area water? ▼
No PFAS testing data is available for Clarks Ferry Recreation Area under the EPA's UCMR5 monitoring program.
What water source does Clarks Ferry Recreation Area use? ▼
Clarks Ferry Recreation Area uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.