Chewelah Water Department South
EPA ID: WA5312750 · 2,615 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Chewelah Water Department South (WA5312750): 3 EPA violations in the last five years. Since the flagged events, Chewelah Water Department South resolved all 3 violations - compliant today, 2,615 residents served.
Data: EPA SDWIS
Service Area Map
Coverage area for Chewelah Water Department South Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Chewelah Water Department South serves a community with a median household income of $61,354 and an estimated 5,075 residents across its service area. Approximately 66% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 58% 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?
Chewelah Water Department South's water is pumped from underground aquifers. 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.
Infrastructure Risk
Detected Contaminants
How Chewelah Water Department South compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in Washington
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
Chewelah Water Department South (EPA ID: WA5312750) is a community water system in Washington that serves approximately 2,615 people from groundwater sources.
This system serves ZIP code 99109 in Chewelah.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 1 archived, 0 addressed, and 0 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 |
|---|---|---|---|
| January 1, 2025 | Barium | Non-health-based | Archived |
| July 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| September 1, 2021 | Consumer Confidence Report Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Barium | Inorganic | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0031 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High 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 WA or modeled from parcel and building-footprint data.
- 99109 - Chewelah
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Chewelah Water Department South (WA5312750) on EPA.gov.
Frequently Asked Questions
Is Chewelah Water Department South water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Chewelah Water Department South; its 3 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Chewelah Water Department South serve?
Chewelah Water Department South serves approximately 2,615 people across 1 ZIP code in Washington.
Where does Chewelah Water Department South get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Chewelah Water Department South (WA): 3 EPA Violations. https://zipcheckup.com/water-system/wa5312750/
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title = {{Chewelah Water Department South (WA): 3 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5312750/}
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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
Chewelah Water Department South (EPA ID: WA5312750) - request the latest Consumer Confidence Report or ask about specific contaminants.