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Community Water System · PWS IA2346047

Lost Nation Water Supply

Lost Nation, Iowa 52321 - drinking water served from groundwater sources to 434 people, tracked in EPA SDWIS and UCMR5.

434
People served
118
EPA violations
34
Health-based
Untested
UCMR5 result

The verdict

EPA records 118 drinking-water violations at Lost Nation Water Supply, 29% of them health-based - above the Iowa per-system average.

118
Total EPA violations on record
29%
Health-based (MCL / treatment failure)
434
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lost Nation Water Supply

Lost Nation Water Supply is a local-owned community water system that delivers drinking water to 434 residents in Lost Nation, Iowa (Clinton County) through 249 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 118 total violations for this system , of which 34 (29%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 66 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 Coliform (TCR), recorded in 22 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%).

Lost Nation Water Supply's 118 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
434
Total Violations
118
Health-Based Violations
34
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
249
County
Clinton
School/Daycare
No
MCL Violations
34
Monitoring Violations
66
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 22 2013
Nitrate MCL 12 2014
Nitrate MR 11 2024
Gross Alpha, Excl. Radon and U MR 7 2018
CYANIDE MR 4 2013
Antimony, Total MR 4 2013
Arsenic MR 4 2013
Cadmium MR 4 2013
Fluoride MR 4 2013
Mercury MR 4 2013
Selenium MR 4 2013
Thallium, Total MR 4 2013
Groundwater Rule Other 4 2019
Public Notice Other 4 2022
Barium MR 4 2013
Combined Radium (-226 and -228) MR 4 2006
Chromium MR 4 2013
Beryllium, Total MR 4 2013
Consumer Confidence Rule Other 3 2022

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 Lost Nation Water Supply.

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 IA2346047 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 11 SDWIS / IA2346047 / 1040
2022 Public Notice Other 4 SDWIS / IA2346047 / 7500
2022 Consumer Confidence Rule Other 3 SDWIS / IA2346047 / 7000
2019 Groundwater Rule Other 4 SDWIS / IA2346047 / 0700
2018 Gross Alpha, Excl. Radon and U MR 7 SDWIS / IA2346047 / 4000
2014 Nitrate MCL 12 SDWIS / IA2346047 / 1040
2013 Coliform (TCR) MCL 22 SDWIS / IA2346047 / 3100
2013 CYANIDE MR 4 SDWIS / IA2346047 / 1024
2013 Antimony, Total MR 4 SDWIS / IA2346047 / 1074
2013 Arsenic MR 4 SDWIS / IA2346047 / 1005
2013 Cadmium MR 4 SDWIS / IA2346047 / 1015
2013 Fluoride MR 4 SDWIS / IA2346047 / 1025
2013 Mercury MR 4 SDWIS / IA2346047 / 1035
2013 Selenium MR 4 SDWIS / IA2346047 / 1045
2013 Thallium, Total MR 4 SDWIS / IA2346047 / 1085

How Lost Nation Water Supply Compares

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

Metric Lost Nation Water Supply Iowa avg Federal benchmark
Total violations 118 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 34 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 434 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 Lost Nation Water Supply water safe to drink? ▼
Lost Nation Water Supply (PWS ID: IA2346047) has 118 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 434 people using Groundwater sources.
How many people does Lost Nation Water Supply serve? ▼
Lost Nation Water Supply serves 434 people in Lost Nation, Iowa. It is a Local-owned system using Groundwater water sources with 249 service connections.
What type of violations does Lost Nation Water Supply have? ▼
Lost Nation Water Supply has 118 total violations: 34 health-based violations (MCL exceedances or treatment failures), 66 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lost Nation Water Supply water? ▼
No PFAS testing data is available for Lost Nation Water Supply under the EPA's UCMR5 monitoring program.
What water source does Lost Nation Water Supply use? ▼
Lost Nation Water Supply uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.