DELMONT, SD · Douglas County
GREENWOOD COLONY Water System
Consumer Confidence Report status
GREENWOOD COLONY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for GREENWOOD COLONY.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.
System facts
- System ID (PWSID)
- SD4602022
- System type
- Community Water System
- Population served
- 85
- Service connections
- 43
- Ownership
- privately owned
- Water source
- groundwater (wells)
GREENWOOD COLONY is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 85 people from groundwater.
As of August 1, 2026, its federal record holds 35 entries between 2012 and 2025, all of which EPA lists as closed.
All 35 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, volatile organic chemicals, and synthetic organic chemicals.
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2025 – March 31, 2025
ResolvedMonitoring, Source Water (GWR)
—E. COLI
November 17, 2020 – June 1, 2022
ResolvedMonitoring, Source Water (GWR)
—E. COLI
January 29, 2019 – February 28, 2019
ResolvedMonitoring, Regular
—Styrene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
June 1, 2016 – June 30, 2016
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Arsenic
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Fluoride
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Mercury
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Selenium
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Nickel
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2015 – August 31, 2015
ResolvedMonitoring, Regular
—Diquat
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—Simazine
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2014 – March 31, 2014
ResolvedMonitoring, Regular
—Barium
January 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Nickel
January 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Selenium
January 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Fluoride
January 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Arsenic
January 1, 2012 – December 31, 2012
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| March 1, 2025 – March 31, 2025 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| November 17, 2020 – June 1, 2022 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| January 29, 2019 – February 28, 2019 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| June 1, 2016 – June 30, 2016 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Nickel | — | Resolved |
| August 1, 2015 – August 31, 2015 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2012 – December 31, 2012 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2012 – December 31, 2012 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2012 – December 31, 2012 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2012 – December 31, 2012 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2012 – December 31, 2012 | Monitoring, Regular | Arsenic | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 14, 2021State Compliance achieved5 linked violations
- October 14, 2021State Compliance achieved3 linked violations
- October 14, 2021State Compliance achieved5 linked violations
- October 14, 2021State Compliance achieved4 linked violations
- October 14, 2021State Compliance achieved4 linked violations
- October 14, 2021State Compliance achieved4 linked violations
- September 17, 2020State Compliance achieved3 linked violations
- June 22, 2020State Public Notification received3 linked violations
- January 14, 2020State Public Notification requested7 linked violations
- January 14, 2020State Public Notification requested7 linked violations
- January 14, 2020State Public Notification requested8 linked violations
- January 14, 2020State Public Notification requested6 linked violations
- January 14, 2020State Public Notification requested4 linked violations
- November 21, 2019State Public Notification requested6 linked violations
- September 25, 2018State Compliance achieved4 linked violations
- July 17, 2017State Compliance achieved5 linked violations
- January 6, 2017State Public Notification requested5 linked violations
- June 3, 2014State Compliance achieved32 linked violations
- May 5, 2014State Public Notification requested10 linked violations
- April 1, 2014State Compliance achieved14 linked violations
- February 4, 2013State Compliance achieved42 linked violations
- February 4, 2013State Compliance achieved100 linked violations
- January 2, 2013State Public Notification requested20 linked violations
- June 11, 2007State Compliance achieved37 linked violations
- January 19, 2007State Public Notification requested53 linked violations
Common questions
Is GREENWOOD COLONY required to publish a Consumer Confidence Report?
- Yes. GREENWOOD COLONY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is GREENWOOD COLONY’s next Consumer Confidence Report due?
- GREENWOOD COLONY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does GREENWOOD COLONY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for GREENWOOD COLONY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
GREENWOOD COLONY
6054915158
DELMONT, SD 57330