NORTH SLOPE ESTATES PROPERTY
Washington - Community Water System - PWSID: WA5310761
System Information
| PWSID | WA5310761 |
| System Name | NORTH SLOPE ESTATES PROPERTY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 6, 1994 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Pasco |
| ZIP Code | 99301 |
| Address | 30 Aries Dr |
| Organization | NORTH SLOPE ESTATES PROPERTY |
| Phone | - |
Population & Service
| Population Served | 97 |
| Service Connections | 30 |
Drinking Water Violations (40)
This water system has 40 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2025 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .0116 MG/L | 0.010 mg/L | - | Archived | Jun 30, 2024 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 26, 2022 | - | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2022 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 1 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.07 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.7 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.6 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.075 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.007 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.07 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | .0115 MG/L | 0.010 mg/L | - | Resolved | Mar 31, 2010 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Oct 19, 1999 | Dec 31, 1999 | Other | No | Yes | - | - | - | Resolved | Dec 31, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1999 | - | |
| Jan 1, 1999 | Jan 1, 2000 | MR | No | No | - | TT | - | Resolved | Jan 1, 2000 | - | |
| Jul 1, 1996 | Jul 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1996 | - | |
| Sep 1, 1995 | Sep 30, 1995 | MR | No | Yes | - | 5% of samples | - | Archived | Sep 30, 1995 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 1994 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.