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Public water system record

Norwalk City PWS

Serves Norwalk, Huron County, OH · 17,466 people served

Federal records show no health-based violations and 4 monitoring/reporting issues for Norwalk City PWS in the last ten years.

  • OH3901111
  • NORWALK
  • OH
  • 17,466 served

System profile

Source water Surface water
ZIP 44857
EPA system ID OH3901111

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
4

Key facts

  • Norwalk City PWS draws water from 6 surface water intakes and 3 reservoirs.
  • Record on file since 1984, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 174 lead and 3,290 unknown out of 7,206 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.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jul 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 1, 2021 Resolved

Full record since 1984

EPA's records for Norwalk City PWS go back to 1984. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1980s 1 0
1990s 1 0
2000s 5 1
2020s 0 4

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2004, Resolved.

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2003 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2003 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2002 Resolved
Atrazine
Contaminant limit exceeded
Measured 0.0039 mg/L, federal limit 0.003 mg/L (1.3 times the limit)
 Jul 1, 1997 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
 Oct 1, 1984 Resolved

Where the water comes from

Norwalk City PWS draws water from 6 surface water intakes and 3 reservoirs. It also has an emergency connection to Northern Ohio Rural Water.

Emergency or part-time connections to

Annual water quality report

Norwalk City PWS 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.

Certified drinking water labs by state EPA guidance for private wells