Twin Cedars Mhp
EPA ID: OR4101514 · 200 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Twin Cedars Mhp (OR4101514): 1 violation recorded with unresolved status in the SDWIS data used. Twin Cedars Mhp has 1 EPA violation listed as open in the reviewed federal record - approximately 200 people fall within its service area.
Data: EPA SDWIS
Service Area Map
Coverage area for Twin Cedars Mhp Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Twin Cedars Mhp have a median household income of $64,307 and about 33,236 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 58% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 43% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Twin Cedars Mhp's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Oregon
System Overview
Twin Cedars Mhp (EPA ID: OR4101514) is a community water system in Oregon that serves approximately 200 people from groundwater sources.
This system serves ZIP code 97355 in Lebanon.
Violation History
Status breakdown for accepted records with record years 2021-2026: 10 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 1, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| October 1, 2023 | Consumer Confidence Rule | Non-health-based | Resolved |
| October 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| August 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| July 1, 2023 | Consumer Confidence Rule | Non-health-based | Resolved |
| May 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| April 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| March 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| February 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2022 | Nitrate | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | Monitoring & Reporting | 7 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 2 | No |
| Nitrate | Monitoring & Reporting | 1 | No |
| Lead and Copper Rule | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0006 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OR or modeled from parcel and building-footprint data.
- 97355 - Lebanon
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Twin Cedars Mhp (OR4101514) on EPA.gov.
Frequently Asked Questions
Is Twin Cedars Mhp water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Twin Cedars Mhp serve?
Twin Cedars Mhp serves approximately 200 people across 1 ZIP code in Oregon.
Where does Twin Cedars Mhp get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Twin Cedars Mhp (OR): 11 EPA Violations. https://zipcheckup.com/water-system/or4101514/
@misc{zipcheckup-water-system-or4101514,
author = {{ZipCheckup}},
title = {{Twin Cedars Mhp (OR): 11 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/or4101514/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Twin Cedars Mhp (EPA ID: OR4101514) - request the latest Consumer Confidence Report or ask about specific contaminants.