BLALOCK ORCHARDS DIST 12
Washington — Community Water System — PWSID: WA5307400
System Information
| PWSID | WA5307400 |
| System Name | BLALOCK ORCHARDS DIST 12 |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 7, 1981 |
| Last Reported | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Walla Walla |
| ZIP Code | 99362 |
| Address | 1076 Newtown Road |
| Organization | BLALOCK ORCHARDS DIST 12 |
| Phone | — |
Population & Service
| Population Served | 193 |
| Service Connections | 68 |
Drinking Water Violations (11)
This water system has 11 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 25, 2024 | Lead and Copper Rule |
| Jan 1, 2019 | Dec 31, 2021 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2021 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2019 | Dec 31, 2021 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2021 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 1, 2014 | Feb 28, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2014 | Total Coliform Rule |
| Jan 1, 2014 | Dec 31, 2014 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2014 | Nitrate Rule |
| May 1, 2012 | May 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2012 | Total Coliform Rule |
| May 1, 2004 | May 31, 2004 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | May 31, 2004 | Total Coliform Rule |
| Oct 1, 1997 | Oct 31, 1997 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1997 | Total Coliform Rule |
| Oct 1, 1997 | Oct 31, 1997 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1997 | Total Coliform Rule |
| Oct 1, 1997 | Oct 31, 1997 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1997 | Total Coliform Rule |
| Oct 1, 1979 | Oct 31, 1979 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | Oct 31, 1979 | Radionuclides and Revised Rad Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.