HE DOG SCHOOL
South Dakota — Community Water System — PWSID: SD4602037
System Information
| PWSID | SD4602037 |
| System Name | HE DOG SCHOOL |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Inactive |
| Owner Type | Native American |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Sep 19, 1990 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | MISSION |
| ZIP Code | 575550087 |
| Address | MIKE KNOX |
| Organization | — |
| Phone | 605-856-2588 |
Population & Service
| Population Served | 202 |
| Service Connections | 14 |
Drinking Water Violations (55)
This water system has 55 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 1995 | Oct 31, 1995 | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 1995 | — | |
| Oct 15, 1994 | Nov 14, 1994 | Other | No | No | — | — | — | Archived | Nov 14, 1994 | — | |
| Aug 1, 1994 | Aug 31, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1994 | — | |
| Aug 1, 1994 | Aug 31, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1994 | — | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | Mar 31, 1994 | — | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | Mar 31, 1994 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MCL | Yes | No | — | 5% of samples | — | Archived | Mar 31, 1992 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MCL | Yes | No | — | 5% of samples | — | Archived | Mar 31, 1992 | — |
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.