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GREENWOOD COLONY

South Dakota — Community Water System — PWSID: SD4602022

System Information

PWSIDSD4602022
System NameGREENWOOD COLONY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMay 30, 1990
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityDELMONT
ZIP Code57330
Address28781 402ND AVE
OrganizationGREENWOOD COLONY
Phone6054915158

Population & Service

Population Served85
Service Connections43

Drinking Water Violations (281)

This water system has 281 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
Mar 1, 2025 Mar 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2025 Revised Total Coliform Rule
Mar 1, 2025 Mar 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2025 Revised Total Coliform Rule
Nov 17, 2020 — E. COLI MR No Yes — — — Resolved Jun 1, 2022 Ground Water Rule
Nov 17, 2020 — E. COLI MR No Yes — — — Resolved Jun 1, 2022 Ground Water Rule
Nov 17, 2020 — E. COLI MR No Yes — — — Resolved Jun 1, 2022 Ground Water Rule
Mar 9, 2020 — Public Notice Other No No — — — Resolved Jun 22, 2020 Public Notice Rule and Revised PN Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Sep 17, 2020 Lead and Copper Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Sep 17, 2020 Lead and Copper Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Sep 17, 2020 Lead and Copper Rule
Jan 29, 2019 — E. COLI MR No Yes — — — Resolved Feb 28, 2019 Ground Water Rule
Jan 29, 2019 — E. COLI MR No Yes — — — Resolved Feb 28, 2019 Ground Water Rule
Jan 29, 2019 — E. COLI MR No Yes — — — Resolved Feb 28, 2019 Ground Water Rule
Jan 29, 2019 — E. COLI MR No Yes — — — Resolved Feb 28, 2019 Ground Water Rule
Jan 1, 2019 Dec 31, 2019 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile 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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