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CARVER MOBILE RANCH

PWS ID: OR4100189 · LAKE OSWEGO, Oregon 97035

CARVER MOBILE RANCH serves 110 people in LAKE OSWEGO, Oregon using Groundwater water sources. It has 223 recorded EPA violations, including 8 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CARVER MOBILE RANCH

CARVER MOBILE RANCH is a private-owned community water system that delivers drinking water to 110 residents in LAKE OSWEGO, Oregon (Clackamas County) through 62 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 223 total violations for this system , of which 8 (4%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 199 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 Consumer Confidence Rule, recorded in 11 violations (Other). 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. CARVER MOBILE RANCH's 223 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
110
Total Violations
223
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
62
County
Clackamas
School/Daycare
No
MCL Violations
6
Monitoring Violations
199
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 11 2023
Coliform (TCR) MR 11 2007
Coliform (TCR) MCL 6 2007
COLIPHAGE MR 6 2012
Lead and Copper Rule MR 4 2024
Endrin MR 3 2008
Methoxychlor MR 3 2008
Dalapon MR 3 2008
Diquat MR 3 2008
Endothall MR 3 2008
Glyphosate MR 3 2008
Picloram MR 3 2008
Dinoseb MR 3 2008
Carbofuran MR 3 2008
Atrazine MR 3 2008
Heptachlor MR 3 2008
2,4-D MR 3 2008
2,4,5-TP MR 3 2008
Total Polychlorinated Biphenyls (PCB) MR 3 2008
1,2-DIBROMO-3-CHLOROPROPANE MR 3 2008
cis-1,2-Dichloroethylene MR 3 2008
Xylenes, Total MR 3 2008
DICHLOROMETHANE MR 3 2008
o-Dichlorobenzene MR 3 2008
Vinyl chloride MR 3 2008
1,1-Dichloroethylene MR 3 2008
1,2-Dichloropropane MR 3 2008
Tetrachloroethylene MR 3 2008
Toluene MR 3 2008
1,2,4-Trichlorobenzene MR 3 2008

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 CARVER MOBILE RANCH.

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 OR4100189 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 4 SDWIS / OR4100189 / 5000
2023 Consumer Confidence Rule Other 11 SDWIS / OR4100189 / 7000
2020 Nitrite MR 1 SDWIS / OR4100189 / 1041
2020 Thallium, Total MR 1 SDWIS / OR4100189 / 1085
2020 Barium MR 1 SDWIS / OR4100189 / 1010
2020 CYANIDE MR 1 SDWIS / OR4100189 / 1024
2020 Nickel MR 1 SDWIS / OR4100189 / 1036
2020 Antimony, Total MR 1 SDWIS / OR4100189 / 1074
2020 Selenium MR 1 SDWIS / OR4100189 / 1045
2020 Mercury MR 1 SDWIS / OR4100189 / 1035
2020 Cadmium MR 1 SDWIS / OR4100189 / 1015
2020 Beryllium, Total MR 1 SDWIS / OR4100189 / 1075
2020 Chromium MR 1 SDWIS / OR4100189 / 1020
2020 Fluoride MR 1 SDWIS / OR4100189 / 1025
2019 Lead and Copper Rule TT 2 SDWIS / OR4100189 / 5000

How CARVER MOBILE RANCH Compares

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

Metric CARVER MOBILE RANCH Oregon avg Federal benchmark
Total violations 223 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 8 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 110 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 CARVER MOBILE RANCH water safe to drink? ▼
CARVER MOBILE RANCH (PWS ID: OR4100189) has 223 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 110 people using Groundwater sources.
How many people does CARVER MOBILE RANCH serve? ▼
CARVER MOBILE RANCH serves 110 people in LAKE OSWEGO, Oregon. It is a Private-owned system using Groundwater water sources with 62 service connections.
What type of violations does CARVER MOBILE RANCH have? ▼
CARVER MOBILE RANCH has 223 total violations: 8 health-based violations (MCL exceedances or treatment failures), 199 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CARVER MOBILE RANCH water? ▼
No PFAS testing data is available for CARVER MOBILE RANCH under the EPA's UCMR5 monitoring program.
What water source does CARVER MOBILE RANCH use? ▼
CARVER MOBILE RANCH 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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial