City of Clatskanie
EPA ID: OR4100194 · 2,188 people served · 1 ZIP code
Per EPA records, City of Clatskanie: 9 unresolved violations, 2,188 people in service area.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 1 (2022) to 6 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for City of Clatskanie Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The City of Clatskanie serves a community with a median household income of $67,500 and an estimated 6,568 residents across its service area. Approximately 69% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 40% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. 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?
City of Clatskanie'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 Columbia 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 City of Clatskanie compares to EPA limits
What This Means For You
Fecal Coliform at 38 presence exceeds the EPA maximum of presence.
Total Trihalomethanes (TTHM) at 3 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
E. coli at 32 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.
Consumer Confidence Report Rule at 21 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 6 mg/L exceeds the EPA maximum of mg/L.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Oregon
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
City of Clatskanie, (EPA ID: OR4100194) is a community water system in Oregon that serves approximately 2,188 people from surface water sources.
This system serves ZIP code 97016 in Clatskanie.
Average Home Safety Score: C (64/100)
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 |
|---|---|---|---|
| August 1, 2025 | Fecal Coliform | Health-based | Unresolved |
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2025 | Fecal Coliform | Health-based | Unresolved |
| February 1, 2025 | Fecal Coliform | Health-based | Resolved |
| December 1, 2024 | Fecal Coliform | Health-based | Resolved |
| November 1, 2024 | Fecal Coliform | Health-based | Resolved |
| October 1, 2024 | Fecal Coliform | Health-based | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| May 1, 2024 | E. coli | Monitoring | Resolved |
| May 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| April 1, 2024 | E. coli | Monitoring | Resolved |
| April 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| February 1, 2024 | E. coli | Monitoring | Resolved |
| February 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| January 1, 2024 | E. coli | Monitoring | Resolved |
| January 1, 2024 | Fecal Coliform | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Fecal Coliform | Microbiological | 38 | Yes |
| E. coli | Microbiological | 32 | No |
| Consumer Confidence Report Rule | Reporting Failure | 21 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 6 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 3 | No |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Chlorine residual | Disinfectant | 1 | Yes |
Health Risk Details
Chlorine (Residual Disinfectant) (EPA limit: 4 mg/L (MRDL — Maximum Residual Disinfectant Level))
Irritation & DBP formation at high levels; protective at normal treatment levels At-risk groups: people with asthma or chemical sensitivities, kidney dialysis patients (water must be dechlorinated).
Removal methods: granular activated carbon (GAC), KDF media filter, carbon block filter. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 97016 | 0.00127 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
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.
- 97016 — Clatskanie
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Clatskanie (OR4100194) on EPA.gov.
Frequently Asked Questions
Is City of Clatskanie water safe to drink?
City of Clatskanie has recorded 8 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does City of Clatskanie serve?
City of Clatskanie serves approximately 2,188 people across 1 ZIP code in Oregon.
Where does City of Clatskanie 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
City of Clatskanie (EPA ID: OR4100194) — request the latest Consumer Confidence Report or ask about specific contaminants.