PlainWater
States → Idaho

Community Water System · PWS ID7100020

Comore Loma

Idaho Falls, Idaho 83406 - drinking water served from groundwater sources to 1,500 people, tracked in EPA SDWIS and UCMR5.

1,500
People served
75
EPA violations
11
Health-based
Untested
UCMR5 result

The verdict

EPA records 75 drinking-water violations at Comore Loma, 15% of them health-based - above the Idaho per-system average.

75
Total EPA violations on record
15%
Health-based (MCL / treatment failure)
1,500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Comore Loma

Comore Loma is a private-owned community water system that delivers drinking water to 1,500 residents in Idaho Falls, Idaho (Bonneville County) through 525 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 75 total violations for this system , of which 11 (15%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 63 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 Coliform (TCR), recorded in 11 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%).

Comore Loma's 75 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
1,500
Total Violations
75
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
525
County
Bonneville
School/Daycare
No
MCL Violations
11
Monitoring Violations
63
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 11 2013
Coliform (TCR) MR 9 2001
Gross Alpha, Excl. Radon and U MR 7 2021
Radium-228 MR 7 2023
Radium-226 MR 7 2023
Nitrate MR 6 2020
Combined Uranium MR 5 2021
ETHYLENE DIBROMIDE MR 1 1993
LASSO MR 1 1993
Atrazine MR 1 1993
Chlordane MR 1 1993
Methoxychlor MR 1 1993
Toxaphene MR 1 1993
2,4-D MR 1 1993
2,4,5-TP MR 1 1993
Carbofuran MR 1 1993
Chromium MR 1 1993
Mercury MR 1 1993
Selenium MR 1 1993
Fluoride MR 1 1993
Barium MR 1 1993
BHC-GAMMA MR 1 1993
Nitrite MR 1 1993
Heptachlor epoxide MR 1 1993
Heptachlor MR 1 1993
Total Polychlorinated Biphenyls (PCB) MR 1 1993
1,2-DIBROMO-3-CHLOROPROPANE MR 1 1993
Pentachlorophenol MR 1 1993
Cadmium MR 1 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 Comore Loma.

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 ID7100020 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 Radium-228 MR 7 SDWIS / ID7100020 / 4030
2023 Radium-226 MR 7 SDWIS / ID7100020 / 4020
2021 Gross Alpha, Excl. Radon and U MR 7 SDWIS / ID7100020 / 4000
2021 Combined Uranium MR 5 SDWIS / ID7100020 / 4006
2020 Nitrate MR 6 SDWIS / ID7100020 / 1040
2013 Coliform (TCR) MCL 11 SDWIS / ID7100020 / 3100
2001 Coliform (TCR) MR 9 SDWIS / ID7100020 / 3100
1993 ETHYLENE DIBROMIDE MR 1 SDWIS / ID7100020 / 2946
1993 LASSO MR 1 SDWIS / ID7100020 / 2051
1993 Atrazine MR 1 SDWIS / ID7100020 / 2050
1993 Chlordane MR 1 SDWIS / ID7100020 / 2959
1993 Methoxychlor MR 1 SDWIS / ID7100020 / 2015
1993 Toxaphene MR 1 SDWIS / ID7100020 / 2020
1993 2,4-D MR 1 SDWIS / ID7100020 / 2105
1993 2,4,5-TP MR 1 SDWIS / ID7100020 / 2110

How Comore Loma Compares

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

Metric Comore Loma Idaho avg Federal benchmark
Total violations 75 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 11 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 1,500 870 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 Comore Loma water safe to drink? ▼
Comore Loma (PWS ID: ID7100020) has 75 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,500 people using Groundwater sources.
How many people does Comore Loma serve? ▼
Comore Loma serves 1,500 people in Idaho Falls, Idaho. It is a Private-owned system using Groundwater water sources with 525 service connections.
What type of violations does Comore Loma have? ▼
Comore Loma has 75 total violations: 11 health-based violations (MCL exceedances or treatment failures), 63 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Comore Loma water? ▼
No PFAS testing data is available for Comore Loma under the EPA's UCMR5 monitoring program.
What water source does Comore Loma use? ▼
Comore Loma 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.