Public water system record

Cinco MUD 5

Serves Cinco Ranch, Fort Bend County, TX · 2,460 people served

Federal records show 1 health-based violation and 1 monitoring/reporting issue for Cinco MUD 5 in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX0790291
  • HOUSTON
  • TX
  • 2,460 served

System profile

Source water Purchased groundwater
ZIP 77019
EPA system ID TX0790291

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
1

Key facts

  • Cinco MUD 5 buys its water from Cinco MUD 1.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2025.
  • Lead pipe inventory: 0 lead and 0 unknown out of 586 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.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 1, 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
Apr 20, 2025 Resolved

What the violations mean

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Cinco MUD 5 buys its water from Cinco MUD 1. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Cinco MUD 5 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.