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States → EPA Region 5 — Tribal Water Systems

Community Water System · PWS 055294304

Apple Orchard

Onamia, EPA Region 5 — Tribal Water Systems 56359 - drinking water served from groundwater sources to 74 people, tracked in EPA SDWIS and UCMR5.

74
People served
231
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 231 drinking-water violations at Apple Orchard, 2% of them health-based.

231
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
74
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Apple Orchard

Apple Orchard is a native american-owned community water system that delivers drinking water to 74 residents in Onamia, EPA Region 5 — Tribal Water Systems through 22 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 231 total violations for this system , of which 4 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 224 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, 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.

EPA Region 5 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
74
Total Violations
231
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
22
School/Daycare
No
MCL Violations
4
Monitoring Violations
224
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 10 2023
DICHLOROMETHANE MCL 4 1996
Arsenic MR 4 2017
Barium MR 4 2017
CYANIDE MR 4 2017
Fluoride MR 4 2017
Mercury MR 4 2017
Nickel MR 4 2017
Antimony, Total MR 4 2017
Beryllium, Total MR 4 2017
Thallium, Total MR 4 2017
Asbestos MR 4 2017
Selenium MR 4 2017
Endrin MR 4 2017
BHC-GAMMA MR 4 2017
Dalapon MR 4 2017
Endothall MR 4 2017
Glyphosate MR 4 2017
OXAMYL MR 4 2017
Simazine MR 4 2017
Di(2-ethylhexyl) phthalate MR 4 2017
Picloram MR 4 2017
Dinoseb MR 4 2017
Hexachlorocyclopentadiene MR 4 2017
Aldicarb sulfoxide MR 4 2017
Aldicarb MR 4 2017
Atrazine MR 4 2017
2,3,7,8-TCDD MR 4 2017
Heptachlor epoxide MR 4 2017
HEXACHLOROBENZENE MR 4 2017

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 Apple Orchard.

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 055294304 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 5 — Tribal Water Systems Drinking Water Authority

EPA Region 5 — Tribal Water Systems'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 05 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
2025 Public Notice Other 2 SDWIS / 055294304 / 7500
2023 Lead and Copper Rule MR 10 SDWIS / 055294304 / 5000
2021 Nitrate MR 3 SDWIS / 055294304 / 1040
2017 Arsenic MR 4 SDWIS / 055294304 / 1005
2017 Barium MR 4 SDWIS / 055294304 / 1010
2017 CYANIDE MR 4 SDWIS / 055294304 / 1024
2017 Fluoride MR 4 SDWIS / 055294304 / 1025
2017 Mercury MR 4 SDWIS / 055294304 / 1035
2017 Nickel MR 4 SDWIS / 055294304 / 1036
2017 Antimony, Total MR 4 SDWIS / 055294304 / 1074
2017 Beryllium, Total MR 4 SDWIS / 055294304 / 1075
2017 Thallium, Total MR 4 SDWIS / 055294304 / 1085
2017 Asbestos MR 4 SDWIS / 055294304 / 1094
2017 Selenium MR 4 SDWIS / 055294304 / 1045
2017 Endrin MR 4 SDWIS / 055294304 / 2005

How Apple Orchard Compares

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

Metric Apple Orchard EPA Region 5 — Tribal Water Systems avg Federal benchmark
Total violations 231 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 74 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 5 — Tribal Water Systems.

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 Apple Orchard water safe to drink? ▼
Apple Orchard (PWS ID: 055294304) has 231 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 74 people using Groundwater sources.
How many people does Apple Orchard serve? ▼
Apple Orchard serves 74 people in Onamia, EPA Region 5 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 22 service connections.
What type of violations does Apple Orchard have? ▼
Apple Orchard has 231 total violations: 4 health-based violations (MCL exceedances or treatment failures), 224 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Apple Orchard water? ▼
No PFAS testing data is available for Apple Orchard under the EPA's UCMR5 monitoring program.
What water source does Apple Orchard use? ▼
Apple Orchard 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.