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Public water system record

City of Knollwood

Serves Knollwood, Grayson County, TX · 1,353 people served

Federal records show no health-based violations and 8 monitoring/reporting issues for City of Knollwood in the last ten years.

  • TX0910146
  • KNOLLWOOD
  • TX
  • 1,353 served

System profile

Source water Purchased surface water
ZIP 75092
EPA system ID TX0910146

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
8

Key facts

  • City of Knollwood buys its water from City of Sherman.
  • Most recent formal enforcement: compliance order with a penalty by Texas, October 2013.
  • Record on file since 2007, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 279 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
Consumer Confidence Rule
OTHER
 Jul 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
 Nov 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
 Jun 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
 Aug 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 Jul 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 Jun 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 May 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 Feb 1, 2018 Resolved

Full record since 2007

EPA's records for City of Knollwood go back to 2007. Before October 19, 2016 they list no health-based violations and 29 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 3
2010 to October 18, 2016 0 26
October 19, 2016 to 2019 0 7
2020s 0 1

Enforcement actions

Texas regulators took 1 formal enforcement action against City of Knollwood in 2013. The most recent was a compliance order with a penalty in October 2013.

Date By Action Violations covered
Oct 3, 2013 Texas Compliance order with a penalty 15 violations: Total Coliform, Chlorine, Consumer Confidence Rule

Where the water comes from

City of Knollwood buys its water from City of Sherman. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

City of Knollwood 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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 Texas.

Certified drinking water labs by state EPA guidance for private wells