HILLSBORO, OH · Highland County

HILLSBORO CITY Water System

Current status

3 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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 Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.

System facts

System ID (PWSID): OH3600614
System type: Community Water System
Population served: 6,650
Service connections: 3,359
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
September 5, 2024 – February 10, 2025
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2022 – June 1, 2022
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
February 10, 2020
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
November 2, 2018
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2018 – August 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2016 – December 31, 2016
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2007 – October 31, 2007
Resolved
Monitoring, Regular
—
Simazine
May 1, 2006 – May 31, 2006
Resolved
Monitoring, Regular
—
Atrazine
May 1, 2006 – May 31, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2003 – October 31, 2003
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1994 – February 28, 1994
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
September 5, 2024 – February 10, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2022 – June 1, 2022	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
February 10, 2020	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
November 2, 2018	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
August 1, 2018 – August 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2007 – October 31, 2007	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
May 1, 2006 – May 31, 2006	Monitoring, Regular	Simazine	—	Resolved
May 1, 2006 – May 31, 2006	Monitoring, Regular	Atrazine	—	Resolved
October 1, 2003 – October 31, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 1994 – February 28, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

October 21, 2025State Public Notification requested1 linked violation
October 21, 2025State Violation/Reminder Notice1 linked violation
February 10, 2025State Compliance achieved1 linked violation
September 5, 2024State Violation/Reminder Notice1 linked violation
June 6, 2023State Public Notification received1 linked violation
July 6, 2022State Violation/Reminder Notice1 linked violation
July 6, 2022State Public Notification requested1 linked violation
June 1, 2022State Compliance achieved1 linked violation
May 23, 2019State Public Notification received2 linked violations
November 2, 2018State Violation/Reminder Notice1 linked violation
October 4, 2018State Violation/Reminder Notice1 linked violation
October 4, 2018State Public Notification requested1 linked violation
September 27, 2018State Compliance achieved1 linked violation
June 19, 2017State Public Notification received2 linked violations
February 21, 2017State Violation/Reminder Notice2 linked violations
January 4, 2017State Compliance achieved1 linked violation
November 27, 2007State Public Notification requested12 linked violations
September 26, 2006State Public Notification requested37 linked violations

Contact

ADKINS, SHAWN

937-393-5219

HILLSBORO, OH 45133