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Community Water System · PWS ID2250019

Ferdinand City Of

Ferdinand, Idaho 83526 - drinking water served from groundwater sources to 133 people, tracked in EPA SDWIS and UCMR5.

133
People served
81
EPA violations
36
Health-based
Untested
UCMR5 result

The verdict

EPA records 81 drinking-water violations at Ferdinand City Of, 44% of them health-based - above the Idaho per-system average.

81
Total EPA violations on record
44%
Health-based (MCL / treatment failure)
133
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ferdinand City Of

Ferdinand City Of is a local-owned community water system that delivers drinking water to 133 residents in Ferdinand, Idaho (Idaho County) through 90 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 81 total violations for this system , of which 36 (44%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 45 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Nitrate, recorded in 16 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 Idaho, EPA tracks 2,005 public water systems serving 1,743,912 people, with 104,850 cumulative violations and 19,965 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 52.3 violations. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%).

Ferdinand City Of's 81 violations sit above the Idaho 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
133
Total Violations
81
Health-Based Violations
36
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
90
County
Idaho
School/Daycare
No
MCL Violations
36
Monitoring Violations
45
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MCL 16 2023
Coliform (TCR) MCL 15 2010
Nitrate MR 7 2021
Coliform (TCR) MR 6 2014
Lead and Copper Rule MR 6 2019
Nitrite MR 6 2017
Revised Total Coliform Rule MCL 5 2022
Gross Alpha, Excl. Radon and U MR 4 2017
Combined Uranium MR 4 2017
Radium-226 MR 3 2017
Radium-228 MR 3 2017
E. COLI MR 3 2023
Revised Total Coliform Rule MON 3 2017

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 Ferdinand City Of.

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 ID2250019 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Idaho Drinking Water Authority

Idaho'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 ID 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
2023 Nitrate MCL 16 SDWIS / ID2250019 / 1040
2023 E. COLI MR 3 SDWIS / ID2250019 / 3014
2022 Revised Total Coliform Rule MCL 5 SDWIS / ID2250019 / 8000
2021 Nitrate MR 7 SDWIS / ID2250019 / 1040
2019 Lead and Copper Rule MR 6 SDWIS / ID2250019 / 5000
2017 Nitrite MR 6 SDWIS / ID2250019 / 1041
2017 Gross Alpha, Excl. Radon and U MR 4 SDWIS / ID2250019 / 4000
2017 Combined Uranium MR 4 SDWIS / ID2250019 / 4006
2017 Radium-226 MR 3 SDWIS / ID2250019 / 4020
2017 Radium-228 MR 3 SDWIS / ID2250019 / 4030
2017 Revised Total Coliform Rule MON 3 SDWIS / ID2250019 / 8000
2014 Coliform (TCR) MR 6 SDWIS / ID2250019 / 3100
2010 Coliform (TCR) MCL 15 SDWIS / ID2250019 / 3100

How Ferdinand City Of Compares

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

Metric Ferdinand City Of Idaho avg Federal benchmark
Total violations 81 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 66.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 133 870 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,005 regulated public water systems in Idaho.

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 Ferdinand City Of water safe to drink? ▼
Ferdinand City Of (PWS ID: ID2250019) has 81 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 133 people using Groundwater sources.
How many people does Ferdinand City Of serve? ▼
Ferdinand City Of serves 133 people in Ferdinand, Idaho. It is a Local-owned system using Groundwater water sources with 90 service connections.
What type of violations does Ferdinand City Of have? ▼
Ferdinand City Of has 81 total violations: 36 health-based violations (MCL exceedances or treatment failures), 45 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ferdinand City Of water? ▼
No PFAS testing data is available for Ferdinand City Of under the EPA's UCMR5 monitoring program.
What water source does Ferdinand City Of use? ▼
Ferdinand City Of 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.