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BOULDER PARK WATER USERS ASSOCIATION

South Dakota — Community Water System — PWSID: SD4602005

System Information

PWSIDSD4602005
System NameBOULDER PARK WATER USERS ASSOCIATION
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 27, 1991
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityRAPID CITY
ZIP Code57709
AddressPO BOX 9141
OrganizationBOULDER PARK WATER USERS ASSOCIATION
Phone—

Population & Service

Population Served200
Service Connections85

Drinking Water Violations (66)

This water system has 66 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
Feb 1, 2015 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2015 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Aug 14, 2008 Consumer Confidence Rule
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Aug 14, 2008 Consumer Confidence Rule
Jan 1, 1996 Jul 14, 1997 Lead and Copper Rule MR No No — TT — Resolved Jul 14, 1997 Lead and Copper Rule
Jan 1, 1996 Jul 14, 1997 Lead and Copper Rule MR No No — TT — Resolved Jul 14, 1997 Lead and Copper Rule
Jan 1, 1996 Jul 14, 1997 Lead and Copper Rule MR No No — TT — Resolved Jul 14, 1997 Lead and Copper Rule
Apr 1, 1995 Apr 30, 1995 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Apr 30, 1995 Total Coliform Rule
Apr 1, 1995 Apr 30, 1995 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Apr 30, 1995 Total Coliform Rule
Apr 1, 1995 Apr 30, 1995 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Apr 30, 1995 Total Coliform Rule
Nov 1, 1994 Nov 30, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1994 Total Coliform Rule
Nov 1, 1994 Nov 30, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1994 Total Coliform Rule
Jan 1, 1993 Dec 31, 1995 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Aldicarb MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Aldicarb MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 LASSO MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 LASSO MR No Yes — — — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals
Jan 1, 1993 Dec 31, 1995 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 1995 Synthetic Organic Chemicals

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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