PlainWater
States → Iowa

Transient Non-Community Water System · PWS IA2326848

Valley Oaks

Clinton, Iowa 52732 - drinking water served from groundwater sources to 100 people, tracked in EPA SDWIS and UCMR5.

100
People served
328
EPA violations
22
Health-based
Untested
UCMR5 result

The verdict

EPA records 328 drinking-water violations at Valley Oaks, 7% of them health-based - above the Iowa per-system average.

328
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
100
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Valley Oaks

Valley Oaks is a private-owned transient non-community water system that delivers drinking water to 100 residents in Clinton, Iowa (Clinton County) through 10 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 328 total violations for this system , of which 22 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 192 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Nitrate, recorded in 107 violations (MR). 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%).

Valley Oaks's 328 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
100
Total Violations
328
Health-Based Violations
22
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
10
County
Clinton
School/Daycare
No
MCL Violations
17
Monitoring Violations
192
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 107 2024
Public Notice Other 81 2024
Revised Total Coliform Rule MON 38 2024
Coliform (TCR) MR 28 2011
Coliform (TCR) MCL 17 2011
E. COLI MR 11 2024
Revised Total Coliform Rule TT 5 2021
Nitrite MR 4 1993
Nitrate-Nitrite MR 4 1993

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 Valley Oaks.

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 IA2326848 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
2024 Nitrate MR 107 SDWIS / IA2326848 / 1040
2024 Public Notice Other 81 SDWIS / IA2326848 / 7500
2024 Revised Total Coliform Rule MON 38 SDWIS / IA2326848 / 8000
2024 E. COLI MR 11 SDWIS / IA2326848 / 3014
2021 Revised Total Coliform Rule TT 5 SDWIS / IA2326848 / 8000
2011 Coliform (TCR) MR 28 SDWIS / IA2326848 / 3100
2011 Coliform (TCR) MCL 17 SDWIS / IA2326848 / 3100
1993 Nitrite MR 4 SDWIS / IA2326848 / 1041
1993 Nitrate-Nitrite MR 4 SDWIS / IA2326848 / 1038

How Valley Oaks Compares

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

Metric Valley Oaks Iowa avg Federal benchmark
Total violations 328 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 22 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 100 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 Valley Oaks water safe to drink? ▼
Valley Oaks (PWS ID: IA2326848) has 328 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Groundwater sources.
How many people does Valley Oaks serve? ▼
Valley Oaks serves 100 people in Clinton, Iowa. It is a Private-owned system using Groundwater water sources with 10 service connections.
What type of violations does Valley Oaks have? ▼
Valley Oaks has 328 total violations: 22 health-based violations (MCL exceedances or treatment failures), 192 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Valley Oaks water? ▼
No PFAS testing data is available for Valley Oaks under the EPA's UCMR5 monitoring program.
What water source does Valley Oaks use? ▼
Valley Oaks 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.