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Community Water System · PWS ID4010201

Eagle, City of (Eastern Zone)

Eagle, Idaho 83616 - drinking water served from groundwater sources to 3,702 people, tracked in EPA SDWIS and UCMR5.

3,702
People served
51
EPA violations
2
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 51 drinking-water violations at Eagle, City of (Eastern Zone), 4% of them health-based - below the Idaho per-system average.

51
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
3,702
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Eagle, City of (Eastern Zone)

Eagle, City of (Eastern Zone) is a local-owned community water system that delivers drinking water to 3,702 residents in Eagle, Idaho (Ada County) through 1,424 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 51 total violations for this system , of which 2 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 49 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 14 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Eagle, City of (Eastern Zone)'s 51 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
3,702
Total Violations
51
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,424
County
Ada
School/Daycare
No
MCL Violations
2
Monitoring Violations
49
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 14 2015
Lead and Copper Rule MR 4 1995
Coliform (TCR) MCL 2 2014
Di(2-ethylhexyl) phthalate MR 1 2011
Glyphosate MR 1 2011
Heptachlor epoxide MR 1 2011
Carbofuran MR 1 2011
Diquat MR 1 2011
HEXACHLOROBENZENE MR 1 2011
Benzo(a)pyrene MR 1 2011
BHC-GAMMA MR 1 2011
Methoxychlor MR 1 2011
ETHYLENE DIBROMIDE MR 1 2011
Dinoseb MR 1 2011
Endothall MR 1 2011
OXAMYL MR 1 2011
Total Polychlorinated Biphenyls (PCB) MR 1 2011
Heptachlor MR 1 2011
Pentachlorophenol MR 1 2011
2,4,5-TP MR 1 2011
Simazine MR 1 2011
LASSO MR 1 2011
Di(2-ethylhexyl) adipate MR 1 2011
2,4-D MR 1 2011
Endrin MR 1 2011
Chlordane MR 1 2011
Radium-226 MR 1 1994
Nitrite MR 1 1993
Toxaphene MR 1 2011
Atrazine MR 1 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 6/17/2024 <6.00 ppt 6.00 ppt Not Detected
PFMBA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 6/17/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 6/17/2024 <20.00 ppt 20.00 ppt Not Detected
PFEESA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/17/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 6/17/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 6/17/2024 <7.00 ppt 7.00 ppt Not Detected
PFTA 6/17/2024 <8.00 ppt 8.00 ppt Not Detected
PFHxS 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 6/17/2024 <5.00 ppt 5.00 ppt Not Detected
ADONA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 6/17/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 6/17/2024 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 6/17/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 6/17/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 6/17/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/17/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/17/2024 <2.00 ppt 2.00 ppt Not Detected
PFHxA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/17/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/17/2024 <4.00 ppt 4.00 ppt Not Detected
PFBA 6/17/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 5/13/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/13/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 5/13/2024 <5.00 ppt 5.00 ppt Not Detected
PFOA 5/13/2024 <4.00 ppt 4.00 ppt Not Detected
PFMPA 5/13/2024 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 5/13/2024 <5.00 ppt 5.00 ppt Not Detected
PFMBA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/13/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 5/13/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 5/13/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 5/13/2024 <2.00 ppt 2.00 ppt Not Detected
6:2 FTS 5/13/2024 <5.00 ppt 5.00 ppt Not Detected
PFTA 5/13/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 5/13/2024 <7.00 ppt 7.00 ppt Not Detected

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 Eagle, City of (Eastern Zone).

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 ID4010201 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
2015 Coliform (TCR) MR 14 SDWIS / ID4010201 / 3100
2014 Coliform (TCR) MCL 2 SDWIS / ID4010201 / 3100
2011 Di(2-ethylhexyl) phthalate MR 1 SDWIS / ID4010201 / 2039
2011 Glyphosate MR 1 SDWIS / ID4010201 / 2034
2011 Heptachlor epoxide MR 1 SDWIS / ID4010201 / 2067
2011 Carbofuran MR 1 SDWIS / ID4010201 / 2046
2011 Diquat MR 1 SDWIS / ID4010201 / 2032
2011 HEXACHLOROBENZENE MR 1 SDWIS / ID4010201 / 2274
2011 Benzo(a)pyrene MR 1 SDWIS / ID4010201 / 2306
2011 BHC-GAMMA MR 1 SDWIS / ID4010201 / 2010
2011 Methoxychlor MR 1 SDWIS / ID4010201 / 2015
2011 ETHYLENE DIBROMIDE MR 1 SDWIS / ID4010201 / 2946
2011 Dinoseb MR 1 SDWIS / ID4010201 / 2041
2011 Endothall MR 1 SDWIS / ID4010201 / 2033
2011 OXAMYL MR 1 SDWIS / ID4010201 / 2036

How Eagle, City of (Eastern Zone) Compares

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

Metric Eagle, City of (Eastern Zone) Idaho avg Federal benchmark
Total violations 51 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 3,702 870 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 Eagle, City of (Eastern Zone) water safe to drink?
Eagle, City of (Eastern Zone) (PWS ID: ID4010201) has 51 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,702 people using Groundwater sources.
How many people does Eagle, City of (Eastern Zone) serve?
Eagle, City of (Eastern Zone) serves 3,702 people in Eagle, Idaho. It is a Local-owned system using Groundwater water sources with 1,424 service connections.
What type of violations does Eagle, City of (Eastern Zone) have?
Eagle, City of (Eastern Zone) has 51 total violations: 2 health-based violations (MCL exceedances or treatment failures), 49 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Eagle, City of (Eastern Zone) water?
No. Eagle, City of (Eastern Zone) was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Eagle, City of (Eastern Zone) use?
Eagle, City of (Eastern Zone) 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
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.