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CROWN MOBILE HOME PARK

PWS ID: OR4101009 · ST HELENS, Oregon 97051

CROWN MOBILE HOME PARK serves 42 people in ST HELENS, Oregon using Groundwater water sources. It has 254 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CROWN MOBILE HOME PARK

CROWN MOBILE HOME PARK is a private-owned community water system that delivers drinking water to 42 residents in ST HELENS, Oregon (Washington County) through 22 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 254 total violations for this system , of which 2 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 239 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 Coliform (TCR), recorded in 12 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. CROWN MOBILE HOME PARK's 254 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
42
Total Violations
254
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
22
County
Washington
School/Daycare
No
MCL Violations
2
Monitoring Violations
239
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 12 2008
Consumer Confidence Rule Other 12 2025
Lead and Copper Rule MR 6 2022
Arsenic MR 5 2005
Endrin MR 4 2014
BHC-GAMMA MR 4 2014
Methoxychlor MR 4 2014
Dalapon MR 4 2014
Endothall MR 4 2014
Glyphosate MR 4 2014
Di(2-ethylhexyl) adipate MR 4 2014
OXAMYL MR 4 2014
Di(2-ethylhexyl) phthalate MR 4 2014
Picloram MR 4 2014
Hexachlorocyclopentadiene MR 4 2014
LASSO MR 4 2014
Heptachlor MR 4 2014
Total Polychlorinated Biphenyls (PCB) MR 4 2014
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2014
Dinoseb MR 4 2014
Heptachlor epoxide MR 4 2014
2,4-D MR 4 2014
Benzo(a)pyrene MR 4 2014
Pentachlorophenol MR 4 2014
Chlordane MR 4 2014
Atrazine MR 4 2014
Simazine MR 4 2014
2,4,5-TP MR 4 2014
Carbofuran MR 4 2014
ETHYLENE DIBROMIDE MR 4 2014

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 CROWN MOBILE HOME PARK.

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 OR4101009 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 Consumer Confidence Rule Other 12 SDWIS / OR4101009 / 7000
2025 Revised Total Coliform Rule MCL 2 SDWIS / OR4101009 / 8000
2023 Revised Total Coliform Rule MON 1 SDWIS / OR4101009 / 8000
2022 Lead and Copper Rule MR 6 SDWIS / OR4101009 / 5000
2016 TTHM MR 1 SDWIS / OR4101009 / 2950
2016 Total Haloacetic Acids (HAA5) MR 1 SDWIS / OR4101009 / 2456
2014 Endrin MR 4 SDWIS / OR4101009 / 2005
2014 BHC-GAMMA MR 4 SDWIS / OR4101009 / 2010
2014 Methoxychlor MR 4 SDWIS / OR4101009 / 2015
2014 Dalapon MR 4 SDWIS / OR4101009 / 2031
2014 Endothall MR 4 SDWIS / OR4101009 / 2033
2014 Glyphosate MR 4 SDWIS / OR4101009 / 2034
2014 Di(2-ethylhexyl) adipate MR 4 SDWIS / OR4101009 / 2035
2014 OXAMYL MR 4 SDWIS / OR4101009 / 2036
2014 Di(2-ethylhexyl) phthalate MR 4 SDWIS / OR4101009 / 2039

How CROWN MOBILE HOME PARK Compares

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

Metric CROWN MOBILE HOME PARK Oregon avg Federal benchmark
Total violations 254 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 42 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 CROWN MOBILE HOME PARK water safe to drink? ▼
CROWN MOBILE HOME PARK (PWS ID: OR4101009) has 254 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 42 people using Groundwater sources.
How many people does CROWN MOBILE HOME PARK serve? ▼
CROWN MOBILE HOME PARK serves 42 people in ST HELENS, Oregon. It is a Private-owned system using Groundwater water sources with 22 service connections.
What type of violations does CROWN MOBILE HOME PARK have? ▼
CROWN MOBILE HOME PARK has 254 total violations: 2 health-based violations (MCL exceedances or treatment failures), 239 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CROWN MOBILE HOME PARK water? ▼
No PFAS testing data is available for CROWN MOBILE HOME PARK under the EPA's UCMR5 monitoring program.
What water source does CROWN MOBILE HOME PARK use? ▼
CROWN MOBILE HOME PARK 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.

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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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