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PORCUPINE DAY SCHOOL

South Dakota — Community Water System — PWSID: 084690469

System Information

PWSID084690469
System NamePORCUPINE DAY SCHOOL
System TypeCommunity Water System
Water SourceGround Water
Activity StatusNon-Inventory
Owner TypeNative American
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 4, 1980
Last ReportedMar 2, 2026

Location & Contact

StateSouth Dakota
CityPINE RIDGE
ZIP Code57770
AddressOGLALA SIOUX TRIBE
OrganizationJACOBS, CHUCK
Phone605-867-1999

Population & Service

Population Served767
Service Connections118

Drinking Water Violations (33)

This water system has 33 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, 2001 Dec 31, 2001 MR No Yes — — — Archived Dec 31, 2001 —
Jan 1, 2001 Dec 31, 2001 MR No Yes — 1 mg/L — Archived Dec 31, 2001 —
Jan 1, 2001 Dec 31, 2001 MR No Yes — 10 mg/L — Archived Dec 31, 2001 —
Aug 1, 1998 Aug 31, 1998 MR No No — 5% of samples — Archived Aug 31, 1998 —
Sep 1, 1997 Sep 30, 1997 MR No No — 5% of samples — Archived Sep 30, 1997 —
Aug 1, 1997 Aug 31, 1997 MR No No — 5% of samples — Archived Aug 31, 1997 —
Aug 1, 1997 Aug 31, 1997 MCL Yes No — 5% of samples — Archived Aug 31, 1997 —
May 1, 1997 May 31, 1997 MR No No — 5% of samples — Archived May 31, 1997 —
Sep 1, 1996 Sep 30, 1996 MR No No — 5% of samples — Archived Sep 30, 1996 —
Aug 1, 1996 Aug 31, 1996 MCL Yes No — 5% of samples — Archived Aug 31, 1996 —
Jan 1, 1996 Dec 31, 1998 MR No Yes — 0.2 mg/L — Archived Dec 31, 1998 —
Nov 1, 1995 Nov 30, 1995 MR No No — 5% of samples — Archived Nov 30, 1995 —
May 1, 1995 May 31, 1995 MR No No — 5% of samples — Archived May 31, 1995 —
Sep 1, 1994 Sep 30, 1994 MR No No — 5% of samples — Archived Sep 30, 1994 —
Sep 1, 1994 Sep 30, 1994 MR No No — 5% of samples — Archived Sep 30, 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 No — 5% of samples — Archived Aug 31, 1994 —
Jan 1, 1994 Dec 31, 1994 MR No Yes — 10 mg/L — Archived Dec 31, 1994 —
Nov 1, 1993 Nov 30, 1993 MR No No — 5% of samples — Archived Nov 30, 1993 —
Feb 1, 1993 Feb 28, 1993 MR No No — 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, 1991 Jul 31, 1991 MCL Yes No — 5% of samples — Archived Jul 31, 1991 —
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 — 0.005 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 — 0.1 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, 1983 Dec 31, 1985 MR No Yes — 2 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 — 10 mg/L — Archived Dec 31, 1985 —
Jan 1, 1982 Dec 31, 1985 MR No Yes — 15 pCi/L — Archived Dec 31, 1985 —
Oct 1, 1980 Sep 30, 1983 MCL Yes No — 4.0 mg/L — Archived Sep 30, 1983 —
— — — 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.

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