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Community Water System · PWS OR4101311

Laurel Ridge MHP

Scappoose, Oregon 97056 - drinking water served from groundwater sources to 70 people, tracked in EPA SDWIS and UCMR5.

70
People served
473
EPA violations
38
Health-based
Untested
UCMR5 result

The verdict

EPA records 473 drinking-water violations at Laurel Ridge MHP, 8% of them health-based - above the Oregon per-system average.

473
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
70
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Laurel Ridge MHP

Laurel Ridge MHP is a private-owned community water system that delivers drinking water to 70 residents in Scappoose, Oregon (Columbia County) through 52 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 473 total violations for this system , of which 38 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 408 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 43 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%).

Laurel Ridge MHP's 473 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
70
Total Violations
473
Health-Based Violations
38
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
52
County
Columbia
School/Daycare
No
MCL Violations
38
Monitoring Violations
408
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 43 2015
Coliform (TCR) MCL 38 2015
COLIPHAGE MR 19 2020
Consumer Confidence Rule Other 14 2024
E. COLI MR 11 2021
Lead and Copper Rule MR 10 2004
cis-1,2-Dichloroethylene MR 7 2011
DICHLOROMETHANE MR 7 2011
Ethylbenzene MR 7 2011
CHLOROBENZENE MR 7 2011
Styrene MR 7 2011
Tetrachloroethylene MR 7 2011
Toluene MR 7 2011
Trichloroethylene MR 7 2011
Vinyl chloride MR 7 2011
1,2,4-Trichlorobenzene MR 7 2011
1,1-Dichloroethylene MR 7 2011
trans-1,2-Dichloroethylene MR 7 2011
1,1,1-Trichloroethane MR 7 2011
Carbon tetrachloride MR 7 2011
1,1,2-Trichloroethane MR 7 2011
o-Dichlorobenzene MR 7 2011
p-Dichlorobenzene MR 7 2011
1,2-Dichloroethane MR 7 2011
Xylenes, Total MR 7 2011
1,2-Dichloropropane MR 7 2011
Benzene MR 7 2011
Public Notice Other 6 2016
2,4-D MR 5 2011
LASSO MR 5 2011

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 Laurel Ridge MHP.

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 OR4101311 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 Consumer Confidence Rule Other 14 SDWIS / OR4101311 / 7000
2021 E. COLI MR 11 SDWIS / OR4101311 / 3014
2020 COLIPHAGE MR 19 SDWIS / OR4101311 / 3028
2016 Public Notice Other 6 SDWIS / OR4101311 / 7500
2015 Coliform (TCR) MR 43 SDWIS / OR4101311 / 3100
2015 Coliform (TCR) MCL 38 SDWIS / OR4101311 / 3100
2015 TTHM MR 4 SDWIS / OR4101311 / 2950
2015 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OR4101311 / 2456
2013 Nitrate MR 4 SDWIS / OR4101311 / 1040
2011 cis-1,2-Dichloroethylene MR 7 SDWIS / OR4101311 / 2380
2011 DICHLOROMETHANE MR 7 SDWIS / OR4101311 / 2964
2011 Ethylbenzene MR 7 SDWIS / OR4101311 / 2992
2011 CHLOROBENZENE MR 7 SDWIS / OR4101311 / 2989
2011 Styrene MR 7 SDWIS / OR4101311 / 2996
2011 Tetrachloroethylene MR 7 SDWIS / OR4101311 / 2987

How Laurel Ridge MHP Compares

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

Metric Laurel Ridge MHP Oregon avg Federal benchmark
Total violations 473 82.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 38 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 70 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 Laurel Ridge MHP water safe to drink? ▼
Laurel Ridge MHP (PWS ID: OR4101311) has 473 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 70 people using Groundwater sources.
How many people does Laurel Ridge MHP serve? ▼
Laurel Ridge MHP serves 70 people in Scappoose, Oregon. It is a Private-owned system using Groundwater water sources with 52 service connections.
What type of violations does Laurel Ridge MHP have? ▼
Laurel Ridge MHP has 473 total violations: 38 health-based violations (MCL exceedances or treatment failures), 408 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Laurel Ridge MHP water? ▼
No PFAS testing data is available for Laurel Ridge MHP under the EPA's UCMR5 monitoring program.
What water source does Laurel Ridge MHP use? ▼
Laurel Ridge MHP 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.