EVERGREEN WATER SYSTEM
South Dakota — Community Water System — PWSID: 084690477
System Information
| PWSID | 084690477 |
| System Name | EVERGREEN WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Native American |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 4, 1980 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | PINE RIDGE |
| ZIP Code | 57770 |
| Address | OST WATER & SEWER DEPT., BOX 1054 |
| Organization | — |
| Phone | 605-867-5804 |
Population & Service
| Population Served | 450 |
| Service Connections | 65 |
Drinking Water Violations (28)
This water system has 28 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, 1995 | Jul 31, 1995 | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1995 | — | |
| May 1, 1995 | May 31, 1995 | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 1995 | — | |
| Apr 1, 1995 | Apr 30, 1995 | MR | No | Yes | — | 5% of samples | — | Archived | Apr 30, 1995 | — | |
| Mar 1, 1995 | Mar 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Archived | Mar 31, 1995 | — | |
| Feb 1, 1995 | Feb 28, 1995 | MCL | Yes | No | — | 5% of samples | — | Archived | Feb 28, 1995 | — | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 1993 | — | |
| Feb 1, 1993 | Feb 28, 1993 | MR | No | Yes | — | 5% of samples | — | Archived | Feb 28, 1993 | — | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 1992 | — | |
| Jul 1, 1992 | Jul 31, 1992 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1992 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 2 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Dec 31, 1985 | — | |
| Jan 1, 1982 | Dec 31, 1985 | MR | No | Yes | — | 15 pCi/L | — | Archived | Dec 31, 1985 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 10 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Feb 28, 1983 | — | |
| Mar 1, 1980 | Feb 28, 1983 | MR | No | Yes | — | 2 mg/L | — | Archived | Feb 28, 1983 | — | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | — | 15 pCi/L | — | Archived | Jun 30, 1980 | — | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | — | 5 pCi/L | — | Archived | Jun 30, 1980 | — |
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.