Public water system record

Columbus Public Water System

Serves Columbus, Dublin, Grove City and 19 more places, Franklin County, OH · 1,305,946 people served

Federal records show no health-based violations and no monitoring or reporting issues for Columbus Public Water System in the last ten years.

  • OH2504412
  • COLUMBUS
  • OH
  • 1,305,946 served

System profile

Source water Surface water
ZIP 43215
EPA system ID OH2504412

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Columbus Public Water System draws water from 6 wells and 5 surface water intakes.
  • Record on file since 1993, with 8 health-based violations before October 19, 2016.
  • Lead pipe inventory: 25,155 lead and 65,266 unknown out of 288,462 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016, and no monitoring or reporting violations either.

Full record since 1993

EPA's records for Columbus Public Water System go back to 1993. Before October 19, 2016 they list 8 health-based violations (8 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1990s 3 0
2000s 3 0
2010 to October 18, 2016 2 1

Most recent health-based violation before October 19, 2016: Nitrate (acute), began June 2016, Resolved.

Show all 8 health-based violations before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Measured 10.5 mg/L, federal limit 10 mg/L (1.1 times the limit)
Jun 1, 2016 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
Jun 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2007 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11.6 mg/L, federal limit 10 mg/L (1.2 times the limit)
May 1, 2006 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11.3 mg/L, federal limit 10 mg/L (1.1 times the limit)
Jun 1, 2000 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
Jun 1, 1998 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Sep 1, 1993 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 1993 Resolved

Where the water comes from

Columbus Public Water System draws water from 6 wells and 5 surface water intakes. 10 other community water systems and 4 smaller public systems such as schools, businesses or campgrounds buy water from Columbus Public Water System. 6 other public water systems have emergency connections to Columbus Public Water System.

Community systems that buy water from it

Annual water quality report

Columbus Public Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Ohio.