Public water system record
Harris County MUD 477
On record as serving Harris County, TX · Serves 267 people
Federal records show no health-based violations and no monitoring or reporting issues for Harris County MUD 477 in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Harris County MUD 477 buys its water from Harris County MUD 478 Water Plant 1.
Check whether Harris County MUD 477 serves your address
Health-based violations
Since October 2016Violation 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.
Where the water comes from
Harris County MUD 477 buys its water from Harris County MUD 478 Water Plant 1. It lists no wells or intakes of its own.
Buys water from
- Harris County MUD 478 Water Plant 1 Houston, TX
Annual water quality report
Harris County MUD 477 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Harris County MUD 477 for a copy.
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