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TERRY TROJAN WATER DISTRICT

South Dakota — Community Water System — PWSID: SD4600053

System Information

PWSIDSD4600053
System NameTERRY TROJAN WATER DISTRICT
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityBLACK HAWK
ZIP Code57718
AddressPO BOX 761
OrganizationTERRY TROJAN WATER DISTRICT
Phone6057864366

Population & Service

Population Served400
Service Connections220

Drinking Water Violations (398)

This water system has 398 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, 2011 — Lead and Copper Rule MR No No — TT — Resolved Sep 19, 2012 Lead and Copper Rule
Oct 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Sep 19, 2012 Lead and Copper Rule
Oct 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Sep 19, 2012 Lead and Copper Rule
Apr 1, 2008 — Public Notice Other No No — — — Resolved Apr 14, 2008 Public Notice Rule and Revised PN Rule
Apr 1, 2008 — Public Notice Other No No — — — Resolved Apr 14, 2008 Public Notice Rule and Revised PN Rule
Jan 1, 2008 Mar 31, 2008 Arsenic MCL Yes No .011 0.010 mg/L — Resolved Mar 31, 2008 Arsenic Rule
Jan 1, 2008 Mar 31, 2008 Arsenic MCL Yes No .011 0.010 mg/L — Resolved Mar 31, 2008 Arsenic Rule
Jan 1, 2008 Mar 31, 2008 Arsenic MCL Yes No .011 0.010 mg/L — Resolved Mar 31, 2008 Arsenic Rule
Oct 1, 2007 Dec 31, 2007 Arsenic MCL Yes No .017 0.010 mg/L — Resolved Dec 31, 2007 Arsenic Rule
Oct 1, 2007 Dec 31, 2007 Arsenic MCL Yes No .017 0.010 mg/L — Resolved Dec 31, 2007 Arsenic Rule
Jul 1, 2007 Sep 30, 2007 Arsenic MCL Yes No .022 0.010 mg/L — Resolved Sep 30, 2007 Arsenic Rule
Jul 1, 2007 Sep 30, 2007 Arsenic MCL Yes No .022 0.010 mg/L — Resolved Sep 30, 2007 Arsenic Rule
Jul 1, 2007 Sep 30, 2007 Arsenic MCL Yes No .022 0.010 mg/L — Resolved Sep 30, 2007 Arsenic Rule
Apr 1, 2007 Jun 30, 2007 Arsenic MCL Yes No .017 0.010 mg/L — Resolved Jun 30, 2007 Arsenic Rule
Apr 1, 2007 Jun 30, 2007 Arsenic MCL Yes No .017 0.010 mg/L — Resolved Jun 30, 2007 Arsenic Rule
Jan 1, 2007 — Public Notice Other No No — — — Resolved Jul 6, 2007 Public Notice Rule and Revised PN Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MCL Yes No .011 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 — Public Notice Other No No — — — Resolved Jul 6, 2007 Public Notice Rule and Revised PN Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MCL Yes No .011 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MCL Yes No .011 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Apr 1, 2006 Jun 30, 2006 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2006 Synthetic Organic Chemicals
Apr 1, 2006 Jun 30, 2006 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2006 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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