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Community Water System · PWS ID4200005

Atlanta Water Assn

Atlanta, Idaho 83713 - drinking water served from surface water sources to 91 people, tracked in EPA SDWIS and UCMR5.

91
People served
201
EPA violations
86
Health-based
Untested
UCMR5 result

The verdict

EPA records 201 drinking-water violations at Atlanta Water Assn, 43% of them health-based - above the Idaho per-system average.

201
Total EPA violations on record
43%
Health-based (MCL / treatment failure)
91
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Atlanta Water Assn

Atlanta Water Assn is a private-owned community water system that delivers drinking water to 91 residents in Atlanta, Idaho (Elmore County) through 114 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 201 total violations for this system , of which 86 (43%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 101 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 Surface Water Treatment Rule, recorded in 79 violations (TT, 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%).

Atlanta Water Assn's 201 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
91
Total Violations
201
Health-Based Violations
86
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
114
County
Elmore
School/Daycare
No
MCL Violations
6
Monitoring Violations
101
Treatment Tech Violations
79

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 79 2014
Surface Water Treatment Rule MR 28 2018
Coliform (TCR) MR 18 2013
Chlorine MR 14 2018
Lead and Copper Rule MR 12 2024
Interim Enhanced Surface Water Treatment Rule MR 10 2017
E. COLI MR 9 2018
Public Notice Other 7 2015
Coliform (TCR) MCL 6 1994
Total Haloacetic Acids (HAA5) MR 3 2013
Long Term 2 Enhanced Surface Water Treatment Rule MR 3 2017
Nitrate MR 2 2009
Arsenic MR 2 2009
Chlorine MRDL 1 2008

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 Atlanta Water Assn.

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 ID4200005 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 12 SDWIS / ID4200005 / 5000
2018 Surface Water Treatment Rule MR 28 SDWIS / ID4200005 / 0200
2018 Chlorine MR 14 SDWIS / ID4200005 / 0999
2018 E. COLI MR 9 SDWIS / ID4200005 / 3014
2017 Interim Enhanced Surface Water Treatment Rule MR 10 SDWIS / ID4200005 / 0300
2017 Long Term 2 Enhanced Surface Water Treatment Rule MR 3 SDWIS / ID4200005 / 0800
2015 Public Notice Other 7 SDWIS / ID4200005 / 7500
2014 Surface Water Treatment Rule TT 79 SDWIS / ID4200005 / 0200
2013 Coliform (TCR) MR 18 SDWIS / ID4200005 / 3100
2013 Total Haloacetic Acids (HAA5) MR 3 SDWIS / ID4200005 / 2456
2009 Nitrate MR 2 SDWIS / ID4200005 / 1040
2009 Arsenic MR 2 SDWIS / ID4200005 / 1005
2008 Chlorine MRDL 1 SDWIS / ID4200005 / 0999
1994 Coliform (TCR) MCL 6 SDWIS / ID4200005 / 3100

How Atlanta Water Assn Compares

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

Metric Atlanta Water Assn Idaho avg Federal benchmark
Total violations 201 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 86 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 91 870 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 Atlanta Water Assn water safe to drink? ▼
Atlanta Water Assn (PWS ID: ID4200005) has 201 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 91 people using Surface Water sources.
How many people does Atlanta Water Assn serve? ▼
Atlanta Water Assn serves 91 people in Atlanta, Idaho. It is a Private-owned system using Surface Water water sources with 114 service connections.
What type of violations does Atlanta Water Assn have? ▼
Atlanta Water Assn has 201 total violations: 86 health-based violations (MCL exceedances or treatment failures), 101 monitoring/reporting violations, and 79 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Atlanta Water Assn water? ▼
No PFAS testing data is available for Atlanta Water Assn under the EPA's UCMR5 monitoring program.
What water source does Atlanta Water Assn use? ▼
Atlanta Water Assn uses Surface Water 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.