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Katy, TX · Waller County

Water quality in Katy, TX

9 community water systems are based in Katy, TX, collectively serving 44,722 people. See per-utility violations, contaminants, and lead service line status.

At a glance

Community systems
9
People served
45k
Groundwater systems
78%
7 systems
Surface water systems
22%
2 systems

Community water systems based in Katy

Systems whose EPA-filed administrative city is Katy, sorted by population served. Regional authorities that serve Katy but are based elsewhere are not listed here; check the ZIP lookup for a service-area-based answer.

  1. 1. CITY OF KATY

    Harris · PWSID TX1010017

    25k served
  2. 2. MASON CREEK UTILITY DISTRICT

    Harris · PWSID TX1010379

    8,900 served
  3. 3. FORT BEND COUNTY MUD 5

    Fort Bend · PWSID TX0790482

    4,665 served
  4. 4. LANCASTER MUD 1

    Dallas · PWSID TX0570176

    2,685 served
  5. 5. MONTGOMERY COUNTY MUD 137

    Montgomery · PWSID TX1700840

    2,409 served
  6. 6. WALLER COUNTY MUD 35

    Waller · PWSID TX2370145

    411 served
  7. 7. NORTHERN HILLS WATER SERVICE

    Grayson · PWSID TX0910126

    264 served
  8. 8. CHANTICOR SERIES

    Montgomery · PWSID TX1700727

    90 served
  9. 9. AUGUST LAKES WSC

    Waller · PWSID TX2370114

    45 served

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