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Non-Transient Non-Community Water System · PWS ID6030070

Intermountain Gas Company

Pocatello, Idaho 83202 - drinking water served from groundwater sources to 28 people, tracked in EPA SDWIS and UCMR5.

28
People served
12
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 12 drinking-water violations at Intermountain Gas Company, 8% of them health-based - below the Idaho per-system average.

12
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
28
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Intermountain Gas Company

Intermountain Gas Company is a private-owned non-transient non-community water system that delivers drinking water to 28 residents in Pocatello, Idaho (Bannock County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 12 total violations for this system , of which 1 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 11 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 3 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 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%).

Intermountain Gas Company's 12 violations sit below 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
28
Total Violations
12
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
2
County
Bannock
School/Daycare
No
MCL Violations
1
Monitoring Violations
11
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 3 1994
Lead and Copper Rule MR 2 2024
Total Polychlorinated Biphenyls (PCB) MR 1 1993
Toxaphene MR 1 1993
1,2-DIBROMO-3-CHLOROPROPANE MR 1 1993
ETHYLENE DIBROMIDE MR 1 1993
Carbofuran MR 1 1993
Chlordane MR 1 1993
Coliform (TCR) MCL 1 1994

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 Intermountain Gas Company.

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 ID6030070 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
2024 Lead and Copper Rule MR 2 SDWIS / ID6030070 / 5000
1994 Coliform (TCR) MR 3 SDWIS / ID6030070 / 3100
1994 Coliform (TCR) MCL 1 SDWIS / ID6030070 / 3100
1993 Total Polychlorinated Biphenyls (PCB) MR 1 SDWIS / ID6030070 / 2383
1993 Toxaphene MR 1 SDWIS / ID6030070 / 2020
1993 1,2-DIBROMO-3-CHLOROPROPANE MR 1 SDWIS / ID6030070 / 2931
1993 ETHYLENE DIBROMIDE MR 1 SDWIS / ID6030070 / 2946
1993 Carbofuran MR 1 SDWIS / ID6030070 / 2046
1993 Chlordane MR 1 SDWIS / ID6030070 / 2959

How Intermountain Gas Company Compares

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

Metric Intermountain Gas Company Idaho avg Federal benchmark
Total violations 12 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 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 28 870 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 Intermountain Gas Company water safe to drink? ▼
Intermountain Gas Company (PWS ID: ID6030070) has 12 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 28 people using Groundwater sources.
How many people does Intermountain Gas Company serve? ▼
Intermountain Gas Company serves 28 people in Pocatello, Idaho. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does Intermountain Gas Company have? ▼
Intermountain Gas Company has 12 total violations: 1 health-based violations (MCL exceedances or treatment failures), 11 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Intermountain Gas Company water? ▼
No PFAS testing data is available for Intermountain Gas Company under the EPA's UCMR5 monitoring program.
What water source does Intermountain Gas Company use? ▼
Intermountain Gas Company uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.