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Community Water System · PWS OR4101125

Mountain View Co-Op

Estacada, Oregon 97023 - drinking water served from groundwater sources to 95 people, tracked in EPA SDWIS and UCMR5.

95
People served
192
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 192 drinking-water violations at Mountain View Co-Op, 9% of them health-based - above the Oregon per-system average.

192
Total EPA violations on record
9%
Health-based (MCL / treatment failure)
95
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mountain View Co-Op

Mountain View Co-Op is a private-owned community water system that delivers drinking water to 95 residents in Estacada, Oregon (Clackamas County) through 42 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 192 total violations for this system , of which 18 (9%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 157 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 21 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. Statewide, 18 of 125 UCMR5-tested systems have reported PFAS detections (14.4%).

Mountain View Co-Op's 192 violations sit above the Oregon 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
95
Total Violations
192
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
42
County
Clackamas
School/Daycare
No
MCL Violations
8
Monitoring Violations
157
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 21 2025
Consumer Confidence Rule Other 13 2004
Coliform (TCR) MR 13 2006
Di(2-ethylhexyl) phthalate MR 13 2022
Lead and Copper Rule TT 10 2013
Coliform (TCR) MCL 8 2015
E. COLI MR 5 2022
Revised Total Coliform Rule MON 3 2021
cis-1,2-Dichloroethylene MR 2 2011
Xylenes, Total MR 2 2011
DICHLOROMETHANE MR 2 2011
o-Dichlorobenzene MR 2 2011
p-Dichlorobenzene MR 2 2011
1,1-Dichloroethylene MR 2 2011
1,2-Dichloroethane MR 2 2011
1,1,1-Trichloroethane MR 2 2011
Carbon tetrachloride MR 2 2011
Trichloroethylene MR 2 2011
Tetrachloroethylene MR 2 2011
Toluene MR 2 2011
Ethylbenzene MR 2 2011
Endrin MR 2 2020
BHC-GAMMA MR 2 2020
Methoxychlor MR 2 2020
Toxaphene MR 2 2020
Dalapon MR 2 2020
Endothall MR 2 2020
Glyphosate MR 2 2020
Simazine MR 2 2020
Picloram 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 Mountain View Co-Op.

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 OR4101125 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
2025 Lead and Copper Rule MR 21 SDWIS / OR4101125 / 5000
2022 Di(2-ethylhexyl) phthalate MR 13 SDWIS / OR4101125 / 2039
2022 E. COLI MR 5 SDWIS / OR4101125 / 3014
2021 Revised Total Coliform Rule MON 3 SDWIS / OR4101125 / 8000
2020 Endrin MR 2 SDWIS / OR4101125 / 2005
2020 BHC-GAMMA MR 2 SDWIS / OR4101125 / 2010
2020 Methoxychlor MR 2 SDWIS / OR4101125 / 2015
2020 Toxaphene MR 2 SDWIS / OR4101125 / 2020
2020 Dalapon MR 2 SDWIS / OR4101125 / 2031
2020 Endothall MR 2 SDWIS / OR4101125 / 2033
2020 Glyphosate MR 2 SDWIS / OR4101125 / 2034
2020 Simazine MR 2 SDWIS / OR4101125 / 2037
2020 Picloram MR 2 SDWIS / OR4101125 / 2040
2020 Heptachlor MR 2 SDWIS / OR4101125 / 2065
2020 Heptachlor epoxide MR 2 SDWIS / OR4101125 / 2067

How Mountain View Co-Op Compares

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

Metric Mountain View Co-Op Oregon avg Federal benchmark
Total violations 192 82.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 14.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 95 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 (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 Mountain View Co-Op water safe to drink? ▼
Mountain View Co-Op (PWS ID: OR4101125) has 192 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 95 people using Groundwater sources.
How many people does Mountain View Co-Op serve? ▼
Mountain View Co-Op serves 95 people in Estacada, Oregon. It is a Private-owned system using Groundwater water sources with 42 service connections.
What type of violations does Mountain View Co-Op have? ▼
Mountain View Co-Op has 192 total violations: 18 health-based violations (MCL exceedances or treatment failures), 157 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mountain View Co-Op water? ▼
No PFAS testing data is available for Mountain View Co-Op under the EPA's UCMR5 monitoring program.
What water source does Mountain View Co-Op use? ▼
Mountain View Co-Op 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.