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Community Water System · PWS OR4101046

Deer View Cooperative

Rainier, Oregon 97048 - drinking water served from groundwater sources to 90 people, tracked in EPA SDWIS and UCMR5.

90
People served
314
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 314 drinking-water violations at Deer View Cooperative, 2% of them health-based - above the Oregon per-system average.

314
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
90
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Deer View Cooperative

Deer View Cooperative is a private-owned community water system that delivers drinking water to 90 residents in Rainier, Oregon (Columbia County) through 47 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 314 total violations for this system , of which 6 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 302 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 Coliform (TCR), recorded in 15 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, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%).

Deer View Cooperative's 314 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
90
Total Violations
314
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
47
County
Columbia
School/Daycare
No
MCL Violations
6
Monitoring Violations
302
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 15 2011
Lead and Copper Rule MR 9 2024
Nitrate MR 9 2009
Arsenic MR 7 2008
Revised Total Coliform Rule MON 7 2024
Coliform (TCR) MCL 6 2015
Endrin MR 5 2020
Methoxychlor MR 5 2020
Di(2-ethylhexyl) phthalate MR 5 2020
Dinoseb MR 5 2020
Hexachlorocyclopentadiene MR 5 2020
Heptachlor MR 5 2020
2,4-D MR 5 2020
HEXACHLOROBENZENE MR 5 2020
Pentachlorophenol MR 5 2020
Total Polychlorinated Biphenyls (PCB) MR 5 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 5 2020
ETHYLENE DIBROMIDE MR 5 2020
Chlordane MR 5 2020
2,4,5-TP MR 5 2020
Heptachlor epoxide MR 5 2020
Atrazine MR 5 2020
Simazine MR 5 2020
Di(2-ethylhexyl) adipate MR 5 2020
Diquat MR 5 2020
Dalapon MR 5 2020
BHC-GAMMA MR 5 2020
Toxaphene MR 5 2020
Endothall MR 5 2020
Glyphosate MR 5 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 Deer View Cooperative.

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 OR4101046 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 Lead and Copper Rule MR 9 SDWIS / OR4101046 / 5000
2024 Revised Total Coliform Rule MON 7 SDWIS / OR4101046 / 8000
2024 Consumer Confidence Rule Other 3 SDWIS / OR4101046 / 7000
2020 Endrin MR 5 SDWIS / OR4101046 / 2005
2020 Methoxychlor MR 5 SDWIS / OR4101046 / 2015
2020 Di(2-ethylhexyl) phthalate MR 5 SDWIS / OR4101046 / 2039
2020 Dinoseb MR 5 SDWIS / OR4101046 / 2041
2020 Hexachlorocyclopentadiene MR 5 SDWIS / OR4101046 / 2042
2020 Heptachlor MR 5 SDWIS / OR4101046 / 2065
2020 2,4-D MR 5 SDWIS / OR4101046 / 2105
2020 HEXACHLOROBENZENE MR 5 SDWIS / OR4101046 / 2274
2020 Pentachlorophenol MR 5 SDWIS / OR4101046 / 2326
2020 Total Polychlorinated Biphenyls (PCB) MR 5 SDWIS / OR4101046 / 2383
2020 1,2-DIBROMO-3-CHLOROPROPANE MR 5 SDWIS / OR4101046 / 2931
2020 ETHYLENE DIBROMIDE MR 5 SDWIS / OR4101046 / 2946

How Deer View Cooperative Compares

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

Metric Deer View Cooperative Oregon avg Federal benchmark
Total violations 314 82.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 90 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 Deer View Cooperative water safe to drink? ▼
Deer View Cooperative (PWS ID: OR4101046) has 314 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 90 people using Groundwater sources.
How many people does Deer View Cooperative serve? ▼
Deer View Cooperative serves 90 people in Rainier, Oregon. It is a Private-owned system using Groundwater water sources with 47 service connections.
What type of violations does Deer View Cooperative have? ▼
Deer View Cooperative has 314 total violations: 6 health-based violations (MCL exceedances or treatment failures), 302 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Deer View Cooperative water? ▼
No PFAS testing data is available for Deer View Cooperative under the EPA's UCMR5 monitoring program.
What water source does Deer View Cooperative use? ▼
Deer View Cooperative 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.