PlainWater

OPRD WILLAMETTE MISSION ST PK

PWS ID: OR4193489 · GERVAIS, Oregon 97026

OPRD WILLAMETTE MISSION ST PK serves 200 people in GERVAIS, Oregon using Groundwater water sources. It has 13 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OPRD WILLAMETTE MISSION ST PK

OPRD WILLAMETTE MISSION ST PK is a state-owned transient non-community water system that delivers drinking water to 200 residents in GERVAIS, Oregon (Marion County) through 20 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 13 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 13 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 7 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 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. OPRD WILLAMETTE MISSION ST PK's 13 violations sit below 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
200
Total Violations
13
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
State
Connections
20
County
Marion
School/Daycare
No
MCL Violations
0
Monitoring Violations
13
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 2014
COLIPHAGE MR 3 2020
Nitrate MR 2 1997
Revised Total Coliform Rule MON 1 2021

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 OPRD WILLAMETTE MISSION ST PK.

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 OR4193489 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
2021 Revised Total Coliform Rule MON 1 SDWIS / OR4193489 / 8000
2020 COLIPHAGE MR 3 SDWIS / OR4193489 / 3028
2014 Coliform (TCR) MR 7 SDWIS / OR4193489 / 3100
1997 Nitrate MR 2 SDWIS / OR4193489 / 1040

How OPRD WILLAMETTE MISSION ST PK Compares

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

Metric OPRD WILLAMETTE MISSION ST PK Oregon avg Federal benchmark
Total violations 13 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 200 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 OPRD WILLAMETTE MISSION ST PK water safe to drink?
OPRD WILLAMETTE MISSION ST PK (PWS ID: OR4193489) has 13 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 200 people using Groundwater sources.
How many people does OPRD WILLAMETTE MISSION ST PK serve?
OPRD WILLAMETTE MISSION ST PK serves 200 people in GERVAIS, Oregon. It is a State-owned system using Groundwater water sources with 20 service connections.
What type of violations does OPRD WILLAMETTE MISSION ST PK have?
OPRD WILLAMETTE MISSION ST PK has 13 total violations: 0 health-based violations (MCL exceedances or treatment failures), 13 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OPRD WILLAMETTE MISSION ST PK water?
No PFAS testing data is available for OPRD WILLAMETTE MISSION ST PK under the EPA's UCMR5 monitoring program.
What water source does OPRD WILLAMETTE MISSION ST PK use?
OPRD WILLAMETTE MISSION ST PK uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.

Explore PlainWater

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial