Tapcensus

Water quality for ZIP code 77377

ZIP 77377 covers Tomball and Houston in Harris County, Texas, one of 132 ZIP codes in the county. 1,320 active public water systems serve the county; 679 had an EPA violation in the past three years.

Most likely your provider

Central Harris County Regional Water Aut TX1013429 · Community water system · Surface water purchased
Serves 0 people Rules violated, past 3 years 1 Last sanitary survey May 15, 2026 Distance 5.9 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Harris County

713 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Telge Terrace Mobile Home Subdivision
 132 1 1.3 mi
Cypress Gardens Mobile Home Subdivision
 81 1 1.3 mi
Americasa at Cypress Meadows
 240 1 1.3 mi
Oaks of Rosehill
 132 0 1.4 mi
Kitzwood Subdivision
 102 2 1.5 mi
Estates of Holly Lakes
 33 4 1.7 mi
Treichel Woods Estates
 174 3 1.9 mi
Harris County MUD 542
 2,592 1 2.3 mi
Harris County MUD 558
 3,300 0 2.4 mi
Rosehill Meadow Water Plant
 741 0 2.4 mi
Alice Acres Mobile Home Subdivision
 315 2 2.9 mi
Cypress Hill Subdivision
 123 1 2.9 mi
Lincoln Square Subdivision PWS
 189 2 3.1 mi
Powder Mill Estates
 342 0 3.2 mi
House Corral Street Water System
 42 3 3.2 mi
Shaw Acres
 369 1 3.2 mi
ED Lou Mobile Home Park
 108 0 3.6 mi
Riverton Ranch
 78 1 3.6 mi
Spring Creek Valley Estates
 645 1 3.7 mi
Grant Road Estates Mobile Home Sub
 99 3 3.8 mi
Harris County MUD 282
 3,237 0 3.8 mi
Berry Hill Estates
 144 0 3.8 mi
Northwest Harris County MUD 5
 25,425 0 3.9 mi
Telge Manor MHP
 150 0 4.0 mi
Harris County MUD 531
 2,421 1 4.0 mi
All 714 community water systems in Harris County
Non-community systems in Harris County (606: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Premier Baseball of Texas
 25 0 0
Southwinds Baptist Church
 200 0 0
K&k Grocery Water System
 50 0 0
Nick Food Mart
 250 3 0
Rosehill Prairie Country Store
 200 3 2
The Church at Cross Lake
 100 0 0
Tomball Isd Rosehill Elementary
 2,519 3 1
Rosehill Mini Mart
 75 0 0
Salem Lutheran School
 400 0 0
Amigo Food Mart
 200 0 0
Cs&p Technologies
 75 1 0
Del Packaging
 52 2 1
Telge Industrial Park II
 132 2 0
Telge Business Park
 135 2 0
Pecan Park Reception Facility
 200 2 1
Grant Food Mart
 250 0 0
VFW Post 2427
 100 1 0
Don Tomate Meat Market
 75 1 0
Grant Road Business Park
 99 0 0
Lonestar Behavioral Health Grant RD
 44 0 0
Tomball Bowl
 250 0 0
Icna Houston Unit
 25 3 0
Road-Trac 12
 200 0 0
Harris County Pct 4 Spring Creek
 200 0 0
Jdfm Telge
 25 1 0
ST Steven Coptic Orthodox Church of Cyp
 100 3 2
Sams Mart 3
 150 0 0
The Oaks Learning Center
 150 0 0
Reserve on Cypress Creek Venue
 70 0 0
Fere Investments Benitez Property
 25 1 0
Harris County Pct 4 Klebwoods Park
 25 0 0
Sandlot Sports
 50 1 0
Lindsay Lakes Reception Hall
 200 0 0
Brew 30 Taphouse
 37 0 0
Frio Grill
 100 0 0
Galaxy Healthcare Center
 39 1 0
Tomball RV Park
 117 1 0
Louetta Automotive Store 9
 25 1 1
Cypress Corner Business Center
 39 0 0
Mueschke Business Park
 30 1 1
Excel Stamping & Manufacturing
 48 0 0
Municipal Operations & Consulting Schiel
 25 1 0
Jurni Water System
 25 1 0
Huber Tennis Ranch
 48 0 0
Faith City Church
 100 2 1
Dnow Process Solutions
 151 3 1
Sahara Food Mart
 350 0 0
Mallard Lake Ranch Detox Center
 34 1 0
Cypress Chevron
 50 3 0
District 249 Bar & Grill
 100 0 0
All non-community systems
About this data

Water systems are matched to Harris County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Texas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.