Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases

CLAY RWS/SOUTH UNION

South Dakota — Community Water System — PWSID: SD4602185

System Information

PWSIDSD4602185
System NameCLAY RWS/SOUTH UNION
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedJan 8, 1999
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityWAKONDA
ZIP Code57073
Address30376 SD HWY 19
OrganizationCLAY RWS/SOUTH UNION
Phone6052672088

Population & Service

Population Served1,447
Service Connections579

Drinking Water Violations (323)

This water system has 323 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
Apr 1, 2004 Jun 30, 2004 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Diquat MR No Yes — 0.02 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Diquat MR No Yes — 0.02 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 LASSO MR No Yes — — — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 LASSO MR No Yes — — — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Carbofuran MR No Yes — 0.04 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Atrazine MR No Yes — 0.003 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Carbofuran MR No Yes — 0.04 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Atrazine MR No Yes — 0.003 mg/L — Resolved Jun 30, 2004 Synthetic Organic Chemicals
Apr 1, 2004 Jun 30, 2004 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2004 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.

Browse All Water Systems Water Safety Stats Water Safety Home
Browse All Water Systems Water Systems in South Dakota