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BUFFALO

South Dakota — Community Water System — PWSID: SD4600078

System Information

PWSIDSD4600078
System NameBUFFALO
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityBUFFALO
ZIP Code57720
AddressPO BOX 82
OrganizationBUFFALO
Phone6053753371

Population & Service

Population Served346
Service Connections240

Drinking Water Violations (202)

This water system has 202 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
Jul 1, 2011 Sep 30, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Sep 30, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 9, 1997 Dec 8, 1997 Coliform (TCR) Other No No — 5% of samples — Archived Dec 8, 1997 Total Coliform Rule
Sep 1, 1997 Sep 30, 1997 Coliform (TCR) MR No Yes — 5% of samples — Archived Sep 30, 1997 Total Coliform Rule
Sep 1, 1997 Sep 30, 1997 Coliform (TCR) MR No Yes — 5% of samples — Archived Sep 30, 1997 Total Coliform Rule
Dec 1, 1996 Dec 31, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived Dec 31, 1996 Total Coliform Rule
Dec 1, 1996 Dec 31, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived Dec 31, 1996 Total Coliform Rule
Nov 11, 1996 Dec 10, 1996 Other No No — — — Archived Dec 10, 1996 Miscellaneous Other Rules
Sep 1, 1996 Sep 30, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived Sep 30, 1996 Total Coliform Rule
Sep 1, 1996 Sep 30, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived Sep 30, 1996 Total Coliform Rule
May 1, 1996 May 31, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived May 31, 1996 Total Coliform Rule
May 1, 1996 May 31, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived May 31, 1996 Total Coliform Rule
Jan 1, 1996 Dec 31, 1998 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Aldicarb MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Aldicarb MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 LASSO MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 LASSO MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Aldicarb MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 1998 Synthetic Organic Chemicals
Jan 1, 1996 Dec 31, 1998 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 1998 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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