Public water system record
Black Diamond Water Dept
Serves Black Diamond, King County, WA · 6,407 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Black Diamond Water Dept in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Black Diamond Water Dept draws water from 4 springs (1 of them for emergency, seasonal or other part-time use).
- Record on file since 1979, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 282 unknown out of 2,131 service lines.
Check whether Black Diamond Water Dept serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
Full record since 1979
EPA's records for Black Diamond Water Dept go back to 1979. Before October 19, 2016 they list 6 health-based violations (6 archived by EPA without a recorded fix) and 157 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 6 | 6 |
| 2000s | 0 | 149 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 1995, Archived.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1995 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1993 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1993 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1992 | Archived |
Where the water comes from
Black Diamond Water Dept draws water from 4 springs (1 of them for emergency, seasonal or other part-time use). It also has an emergency connection to City of Tacoma Water Division.
Emergency or part-time connections to
- City of Tacoma Water Division Tacoma, WA
Annual water quality report
Black Diamond Water Dept must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Washington.
Certified drinking water labs by state EPA guidance for private wells