DELHI, IA · Delaware County

DELHI WATER SUPPLY Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA2817020
System type: Community Water System
Population served: 420
Service connections: 270
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
October 1, 2022 – December 31, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2021 – May 31, 2021
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2016 – March 31, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – October 5, 2011
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Styrene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Benzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Styrene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
LASSO
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
2,4-D
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Picloram
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Simazine
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
LASSO
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Simazine
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Benzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 2007 – June 30, 2013
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1996 – March 31, 1996
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1996 – March 31, 1996
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1996 – March 31, 1996
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 1995 – July 31, 1995
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1995 – September 30, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2022 – December 31, 2022	Monitoring, Regular	Nitrate	—	Resolved
May 1, 2021 – May 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
March 1, 2016 – March 31, 2016	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2011 – October 5, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Styrene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Benzene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Styrene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	LASSO	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	2,4-D	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Dinoseb	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Picloram	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Simazine	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	LASSO	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Dinoseb	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Simazine	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Benzene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2007 – June 30, 2013	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1996 – March 31, 1996	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1996 – March 31, 1996	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1996 – March 31, 1996	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 19, 2023State Formal Notice of Violation issued2 linked violations
January 9, 2023State Compliance achieved2 linked violations
September 2, 2021State Public Notification received2 linked violations
April 20, 2016State Formal Notice of Violation issued2 linked violations
April 4, 2016State Compliance achieved2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received7 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received11 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
July 28, 2014State Public Notification received2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Public Notification requested5 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Public Notification requested9 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Formal Notice of Violation issued9 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued10 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Public Notification requested3 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Formal Notice of Violation issued2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
August 21, 2013State Formal Notice of Violation issued2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Public Notification requested2 linked violations
August 21, 2013State Formal Notice of Violation issued4 linked violations
August 21, 2013State Formal Notice of Violation issued7 linked violations
August 21, 2013State Formal Notice of Violation issued3 linked violations
July 8, 2013State Compliance achieved3 linked violations
July 8, 2013State Compliance achieved4 linked violations
July 8, 2013State Compliance achieved26 linked violations
July 8, 2013State Compliance achieved3 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved3 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved4 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved4 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved8 linked violations
July 8, 2013State Compliance achieved4 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved3 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved2 linked violations
July 8, 2013State Compliance achieved3 linked violations
July 8, 2013State Compliance achieved3 linked violations
July 8, 2013State Compliance achieved26 linked violations
July 8, 2013State Compliance achieved3 linked violations
January 24, 2001State Formal Notice of Violation issued13 linked violations
November 12, 1999State Compliance achieved4 linked violations
June 2, 1999State Public Notification received3 linked violations
July 22, 1996State Public Notification requested2 linked violations
July 22, 1996State Formal Notice of Violation issued2 linked violations
July 22, 1996State Public Notification requested2 linked violations
July 22, 1996State Public Notification requested2 linked violations
July 22, 1996State Public Notification requested5 linked violations
July 22, 1996State Formal Notice of Violation issued2 linked violations
December 20, 1995State Compliance achieved3 linked violations
November 22, 1995State Public Notification requested2 linked violations
November 22, 1995State Public Notification requested4 linked violations
November 22, 1995State Formal Notice of Violation issued5 linked violations

Contact

DELHI WATER SUPPLY

563-929-6978

DELHI, IA 52223