Black Diamond Water District
EPA ID: WA5307221 · 452 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Black Diamond Water District (WA5307221): 6 violations on record since 2021. Black Diamond Water District has 6 EPA violations on record, all marked resolved in the federal data; the utility serves 452 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Black Diamond Water District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Black Diamond Water District have a median household income of $64,583 and about 14,644 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 55% 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?
Black Diamond Water District'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Washington
System Overview
Black Diamond Water District (EPA ID: WA5307221) is a community water system in Washington that serves approximately 452 people from surface water sources.
This system serves ZIP code 98363 in Port Angeles.
Violation History
Status breakdown for accepted records with record years 2021-2026: 6 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 |
|---|---|---|---|
| April 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| October 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| June 1, 2024 | Revised Total Coliform Rule | Non-health-based | Resolved |
| June 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| January 1, 2023 | TTHM | Non-health-based | Resolved |
| January 1, 2023 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Surface Water Treatment Rule | Monitoring & Reporting | 3 | No |
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 1 | No |
| TTHM | Monitoring & Reporting | 1 | No |
| Revised Total Coliform 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 |
|---|---|---|
| 0.0055 mg/L | No | 2023-12-31 |
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 WA or modeled from parcel and building-footprint data.
- 98363 - Port Angeles
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Black Diamond Water District (WA5307221) on EPA.gov.
Frequently Asked Questions
Is Black Diamond Water District water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Black Diamond Water District; its 6 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Black Diamond Water District serve?
Black Diamond Water District serves approximately 452 people across 1 ZIP code in Washington.
Where does Black Diamond Water District get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Black Diamond Water District (WA): 6 EPA Violations. https://zipcheckup.com/water-system/wa5307221/
@misc{zipcheckup-water-system-wa5307221,
author = {{ZipCheckup}},
title = {{Black Diamond Water District (WA): 6 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5307221/}
}
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
Black Diamond Water District (EPA ID: WA5307221) - request the latest Consumer Confidence Report or ask about specific contaminants.