Delta Water Association
EPA ID: WA5318750 · 450 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Delta Water Association (WA5318750): 9 health-based violations recorded since 2021. Delta Water Association's EPA record lists 9 historical violations, and none is listed as open in that record; the utility supplies water to 450 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Delta Water Association Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Delta Water Association have a median household income of $95,225 and about 22,365 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 40% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Delta Water Association'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 70th 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 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
Delta Water Association (EPA ID: WA5318750) is a community water system in Washington that serves approximately 450 people from groundwater sources.
This system serves ZIP code 98264 in Lynden.
Violation History
Status breakdown for accepted records with record years 2021-2026: 9 resolved, 0 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, 2024 | Nitrate | Health-based | Resolved |
| April 1, 2023 | Nitrate | Health-based | Resolved |
| January 1, 2023 | Nitrate | Health-based | Resolved |
| January 1, 2023 | Nitrate | Health-based | Resolved |
| January 1, 2023 | Nitrate | Health-based | Resolved |
| January 1, 2023 | Nitrate | Health-based | Resolved |
| January 1, 2023 | Nitrate | Health-based | Resolved |
| April 1, 2022 | Nitrate | Health-based | Resolved |
| April 1, 2022 | Nitrate | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Nitrate | MCL Violation | 9 | Yes |
Health Risk Details
Lead (EPA level: 0.015 mg/L (EPA action level for the 90th percentile of a system's tap samples; not a safe level))
Brain damage in children, kidney & blood pressure in adults At-risk groups: infants, children under 6, pregnant women.
Treatment options (verify a product is certified to reduce this contaminant): reverse osmosis, distillation, carbon block filter certified for lead reduction (NSF/ANSI 53). Find the right filter →
Lead & Copper
Latest reported 90th-percentile lead result for this PWSID: 0.01 mg/L (2008-06-30).
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 WA or modeled from parcel and building-footprint data.
- 98264 - Lynden
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Delta Water Association (WA5318750) on EPA.gov.
Frequently Asked Questions
Is Delta Water Association water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Delta Water Association; its 9 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Delta Water Association serve?
Delta Water Association serves approximately 450 people across 1 ZIP code in Washington.
Where does Delta Water Association get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Delta Water Association (WA): 9 Health Violations. https://zipcheckup.com/water-system/wa5318750/
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author = {{ZipCheckup}},
title = {{Delta Water Association (WA): 9 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5318750/}
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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
Delta Water Association (EPA ID: WA5318750) - request the latest Consumer Confidence Report or ask about specific contaminants.