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HILLSDALE ESTATES HOMEOWNERS ASSN

PWS ID: ID4010218 · BOISE, Idaho 83709

HILLSDALE ESTATES HOMEOWNERS ASSN serves 800 people in BOISE, Idaho using Groundwater water sources. It has 125 recorded EPA violations, including 8 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HILLSDALE ESTATES HOMEOWNERS ASSN

HILLSDALE ESTATES HOMEOWNERS ASSN is a private-owned community water system that delivers drinking water to 800 residents in BOISE, Idaho (Ada County) through 313 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 125 total violations for this system , of which 8 (6%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 115 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 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. HILLSDALE ESTATES HOMEOWNERS ASSN's 125 violations sit above the Idaho average. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%). 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
800
Total Violations
125
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
313
County
Ada
School/Daycare
No
MCL Violations
8
Monitoring Violations
115
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 10 2003
Coliform (TCR) MCL 8 2005
Nitrate MR 6 2022
Radium-226 MR 3 2017
Gross Alpha, Excl. Radon and U MR 3 2017
Combined Uranium MR 3 2017
Cadmium MR 3 2014
Mercury MR 3 2014
Antimony, Total MR 3 2014
Beryllium, Total MR 3 2014
Thallium, Total MR 3 2014
Radium-228 MR 3 2017
Barium MR 3 2014
Selenium MR 3 2014
Chromium MR 3 2014
Nickel MR 3 2014
Endrin MR 2 2020
Methoxychlor MR 2 2020
Glyphosate MR 2 2020
Di(2-ethylhexyl) adipate MR 2 2020
Simazine MR 2 2020
Dinoseb MR 2 2020
Hexachlorocyclopentadiene MR 2 2020
Carbofuran MR 2 2020
Atrazine MR 2 2020
LASSO MR 2 2020
Heptachlor MR 2 2020
Benzo(a)pyrene MR 2 2020
Pentachlorophenol MR 2 2020
Chlordane MR 2 2020

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 HILLSDALE ESTATES HOMEOWNERS 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 ID4010218 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
2022 Nitrate MR 6 SDWIS / ID4010218 / 1040
2020 Endrin MR 2 SDWIS / ID4010218 / 2005
2020 Methoxychlor MR 2 SDWIS / ID4010218 / 2015
2020 Glyphosate MR 2 SDWIS / ID4010218 / 2034
2020 Di(2-ethylhexyl) adipate MR 2 SDWIS / ID4010218 / 2035
2020 Simazine MR 2 SDWIS / ID4010218 / 2037
2020 Dinoseb MR 2 SDWIS / ID4010218 / 2041
2020 Hexachlorocyclopentadiene MR 2 SDWIS / ID4010218 / 2042
2020 Carbofuran MR 2 SDWIS / ID4010218 / 2046
2020 Atrazine MR 2 SDWIS / ID4010218 / 2050
2020 LASSO MR 2 SDWIS / ID4010218 / 2051
2020 Heptachlor MR 2 SDWIS / ID4010218 / 2065
2020 Benzo(a)pyrene MR 2 SDWIS / ID4010218 / 2306
2020 Pentachlorophenol MR 2 SDWIS / ID4010218 / 2326
2020 Chlordane MR 2 SDWIS / ID4010218 / 2959

How HILLSDALE ESTATES HOMEOWNERS ASSN Compares

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

Metric HILLSDALE ESTATES HOMEOWNERS ASSN Idaho avg Federal benchmark
Total violations 125 52.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 8 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 800 870 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is HILLSDALE ESTATES HOMEOWNERS ASSN water safe to drink? ▼
HILLSDALE ESTATES HOMEOWNERS ASSN (PWS ID: ID4010218) has 125 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 800 people using Groundwater sources.
How many people does HILLSDALE ESTATES HOMEOWNERS ASSN serve? ▼
HILLSDALE ESTATES HOMEOWNERS ASSN serves 800 people in BOISE, Idaho. It is a Private-owned system using Groundwater water sources with 313 service connections.
What type of violations does HILLSDALE ESTATES HOMEOWNERS ASSN have? ▼
HILLSDALE ESTATES HOMEOWNERS ASSN has 125 total violations: 8 health-based violations (MCL exceedances or treatment failures), 115 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HILLSDALE ESTATES HOMEOWNERS ASSN water? ▼
No PFAS testing data is available for HILLSDALE ESTATES HOMEOWNERS ASSN under the EPA's UCMR5 monitoring program.
What water source does HILLSDALE ESTATES HOMEOWNERS ASSN use? ▼
HILLSDALE ESTATES HOMEOWNERS ASSN 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.

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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.

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