Drinking Water Compliance OS

ADA, OH · Hardin County

ADA VILLAGE Water System

Current status

1 item on record is 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)
OH3300012
System type
Community Water System
Population served
5,334
Service connections
1,848
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 19, 2022 – August 30, 2022

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    January 14, 2020

    Unaddressed
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2018 – January 8, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2013 – September 30, 2013

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2013 – September 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1991 – September 30, 1991

    Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

Contact

SEARS, AMANDA

419-634-4045

ADA, OH 45810-0292