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HERMISTON ADVENTIST SCHOOL

PWS ID: OR4195066 · HERMISTON, Oregon 97838

HERMISTON ADVENTIST SCHOOL serves 40 people in HERMISTON, Oregon using Groundwater water sources. It has 111 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HERMISTON ADVENTIST SCHOOL

HERMISTON ADVENTIST SCHOOL is a private-owned non-transient non-community water system that delivers drinking water to 40 residents in HERMISTON, Oregon (Umatilla County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 111 total violations for this system , of which 2 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 108 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 Revised Total Coliform Rule, recorded in 13 violations (MON). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oregon, EPA tracks 2,518 public water systems serving 4,005,242 people, with 206,659 cumulative violations and 20,339 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 82.1 violations. HERMISTON ADVENTIST SCHOOL's 111 violations sit above the Oregon average. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%). 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
40
Total Violations
111
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Umatilla
School/Daycare
Yes
MCL Violations
2
Monitoring Violations
108
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 13 2024
Lead and Copper Rule MR 11 2023
Coliform (TCR) MR 3 2007
BHC-GAMMA MR 2 2020
Dalapon MR 2 2020
Endothall MR 2 2020
Glyphosate MR 2 2020
Simazine MR 2 2020
Di(2-ethylhexyl) phthalate MR 2 2020
Picloram 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
Heptachlor epoxide MR 2 2020
2,4-D MR 2 2020
2,4,5-TP MR 2 2020
HEXACHLOROBENZENE MR 2 2020
Benzo(a)pyrene MR 2 2020
Pentachlorophenol MR 2 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2020
ETHYLENE DIBROMIDE MR 2 2020
Nitrate MR 2 2024
Total Polychlorinated Biphenyls (PCB) MR 2 2020
Methoxychlor MR 2 2020
OXAMYL MR 2 2020
Toxaphene MR 2 2020
Endrin 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 HERMISTON ADVENTIST SCHOOL.

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 OR4195066 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oregon Drinking Water Authority

Oregon'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 OR 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 Revised Total Coliform Rule MON 13 SDWIS / OR4195066 / 8000
2024 Nitrate MR 2 SDWIS / OR4195066 / 1040
2023 Lead and Copper Rule MR 11 SDWIS / OR4195066 / 5000
2020 BHC-GAMMA MR 2 SDWIS / OR4195066 / 2010
2020 Dalapon MR 2 SDWIS / OR4195066 / 2031
2020 Endothall MR 2 SDWIS / OR4195066 / 2033
2020 Glyphosate MR 2 SDWIS / OR4195066 / 2034
2020 Simazine MR 2 SDWIS / OR4195066 / 2037
2020 Di(2-ethylhexyl) phthalate MR 2 SDWIS / OR4195066 / 2039
2020 Picloram MR 2 SDWIS / OR4195066 / 2040
2020 Dinoseb MR 2 SDWIS / OR4195066 / 2041
2020 Hexachlorocyclopentadiene MR 2 SDWIS / OR4195066 / 2042
2020 Carbofuran MR 2 SDWIS / OR4195066 / 2046
2020 Atrazine MR 2 SDWIS / OR4195066 / 2050
2020 LASSO MR 2 SDWIS / OR4195066 / 2051

How HERMISTON ADVENTIST SCHOOL Compares

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

Metric HERMISTON ADVENTIST SCHOOL Oregon avg Federal benchmark
Total violations 111 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 40 1,591 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,518 regulated public water systems in Oregon.

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 HERMISTON ADVENTIST SCHOOL water safe to drink? ▼
HERMISTON ADVENTIST SCHOOL (PWS ID: OR4195066) has 111 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 40 people using Groundwater sources.
How many people does HERMISTON ADVENTIST SCHOOL serve? ▼
HERMISTON ADVENTIST SCHOOL serves 40 people in HERMISTON, Oregon. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does HERMISTON ADVENTIST SCHOOL have? ▼
HERMISTON ADVENTIST SCHOOL has 111 total violations: 2 health-based violations (MCL exceedances or treatment failures), 108 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HERMISTON ADVENTIST SCHOOL water? ▼
No PFAS testing data is available for HERMISTON ADVENTIST SCHOOL under the EPA's UCMR5 monitoring program.
What water source does HERMISTON ADVENTIST SCHOOL use? ▼
HERMISTON ADVENTIST SCHOOL 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.

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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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