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Public water system record

North Collin SUD

Serves an area of Collin County, TX that includes Melissa and New Hope · 10,674 people served

Federal records show 1 health-based violation and 6 monitoring/reporting issues for North Collin SUD in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.

  • TX0430055
  • MELISSA
  • TX
  • 10,674 served

System profile

Source water Purchased surface water
ZIP 75454
EPA system ID TX0430055

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
6

Key facts

  • North Collin SUD draws water from 2 wells.
  • Record on file since 1992, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 3,342 service lines.

Check whether North Collin SUD serves your address

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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.

Contaminant Rule family Start date Status Acute
Revised Total Coliform Rule
Treatment technique failure
 110 May 24, 2025 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Public Notice
OTHER
 Jul 21, 2025 Active
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Active
Chlorine
Monitoring and reporting
 Apr 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2016 Resolved
Public Notice
OTHER
 Jul 8, 2015 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2013 Resolved

Full record since 1992

EPA's records for North Collin SUD go back to 1992. Before October 19, 2016 they list no health-based violations and 10 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 0 3
2010 to October 18, 2016 0 6
October 19, 2016 to 2019 0 1
2020s 1 2

What the violations mean

Revised Total Coliform Rule

1 incident

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

Where the water comes from

North Collin SUD draws water from 2 wells. It also buys water from North Texas MWD Wylie WTP. 1 other public water system has an emergency connection to North Collin SUD.

Buys water from

Annual water quality report

North Collin SUD 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 Texas.

Certified drinking water labs by state EPA guidance for private wells