Timber Water Association
EPA ID: OR4100898 · 180 people served · 2 ZIP codes
Timber Water Association shows 10 open EPA violations in current federal records for approximately 180 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Demographics
The Timber Water Association serves a community with a median household income of $124,837 and an estimated 575 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Timber Water Association's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 2% of homes in Washington County, Oregon rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Timber Water Association compares to EPA limits
What This Means For You
Lead at 1 mg/L (action level) exceeds the EPA maximum of 0.015 mg/L (action level). Brain damage in children, kidney & blood pressure in adults. Consider reverse osmosis filtration.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Fecal Coliform at 10 presence exceeds the EPA maximum of presence.
E. coli at 9 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.
Stage 1 DBP Rule at 6 mg/L exceeds the EPA maximum of mg/L.
Lead was detected in this water system. reverse osmosis filtration can reduce exposure.
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
TIMBER WATER ASSOCIATION (EPA ID: OR4100898) is a community water system in Oregon that serves approximately 180 people from surface water sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: C (66/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | Fecal Coliform | Monitoring | Unresolved |
| September 1, 2025 | E. coli | Monitoring | Unresolved |
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2025 | E. coli | Monitoring | Resolved |
| July 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| July 1, 2025 | Stage 1 DBP Rule | Monitoring | Unresolved |
| June 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| February 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| April 1, 2024 | E. coli | Monitoring | Resolved |
| April 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| January 1, 2024 | Stage 1 DBP Rule | Monitoring | Resolved |
| January 1, 2024 | Lead | Monitoring | Resolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| October 1, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| October 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
| August 1, 2023 | E. coli | Monitoring | Unresolved |
| August 1, 2023 | Fecal Coliform | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Fecal Coliform | Microbiological | 10 | No |
| E. coli | Microbiological | 9 | No |
| Stage 1 DBP Rule | Treatment Failure | 6 | No |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Consumer Confidence Report Rule | Reporting Failure | 4 | No |
| Total Organic Carbon | Disinfection Byproducts | 2 | No |
| Lead | Inorganic | 1 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 97144 | 0.0011 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Timber Water Association (OR4100898) on EPA.gov.
Frequently Asked Questions
Is Timber Water Association water safe to drink?
Timber Water Association has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Timber Water Association serve?
Timber Water Association serves approximately 180 people across 2 ZIP codes in Oregon.
Where does Timber Water Association get its water?
The primary water source is surface water.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
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
Timber Water Association (EPA ID: OR4100898) — request the latest Consumer Confidence Report or ask about specific contaminants.