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PINE RIDGE WATER SYSTEM

South Dakota — Community Water System — PWSID: 084690475

System Information

PWSID084690475
System NamePINE RIDGE WATER SYSTEM
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region08
Serves SchoolNo
WholesalerYes
First ReportedMar 4, 1980
Last ReportedNov 17, 2025

Location & Contact

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

Population & Service

Population Served7,482
Service Connections1,151

Drinking Water Violations (26)

This water system has 26 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
Dec 30, 2023 — Lead and Copper Rule MR No No — TT — Resolved Oct 18, 2023 Lead and Copper Rule
Oct 1, 2019 Dec 31, 2019 Combined Uranium MCL Yes No 31 UG/L 30 ug/L — Resolved Dec 31, 2019 Radionuclides and Revised Rad Rule
Jul 24, 2018 — Groundwater Rule TT Yes No — — — Resolved Oct 18, 2023 Ground Water Rule
Jan 1, 1998 Dec 31, 1998 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Archived Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 1998 Styrene MR No Yes — 0.1 mg/L — Archived Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 1998 Xylenes, Total MR No Yes — 10 mg/L — Archived Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 1998 CHLOROBENZENE MR No Yes — 0.1 mg/L — Archived Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 1998 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Archived Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 1998 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Archived Dec 31, 1998 Volatile Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Carbofuran MR No Yes — 0.04 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Mercury MR No Yes — 0.002 mg/L — Archived Dec 31, 1998 Inorganic Chemicals
Jan 1, 1996 Dec 31, 1998 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Fluoride MR No Yes — 4.0 mg/L — Archived Dec 31, 1998 Inorganic Chemicals
Jan 1, 1996 Dec 31, 1998 Heptachlor MR No Yes — 0.0004 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Toxaphene MR No Yes — 0.003 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Dalapon MR No Yes — 0.2 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 OXAMYL MR No Yes — 0.2 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Endrin MR No Yes — 0.002 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Archived Dec 31, 1998 Synthetic Organic Chemicals
Jul 1, 1995 Jul 31, 1995 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1995 Total Coliform Rule
Jan 1, 1982 Dec 31, 1985 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Archived Dec 31, 1985 Radionuclides and Revised Rad Rule
Jul 1, 1976 Jun 30, 1980 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived Jun 30, 1980 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.

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