Tapcensus

Texas

Montgomery County drinking water quality

472 active public water systems serve 794,846 people in Montgomery County. 244 are compliant, 228 had at least one EPA violation in the past three years, 4 are designated serious violators, and 19 carry a health flag.

Active systems 472 338 community systems
People served 795K by public water systems
Systems with violations 228 48% of active systems, past 3 years
Serious violators 4 19 systems carry a health flag

Needs attention

Stone Hedge Estates TX1700102 · Community water system · Serves 129 3 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR) and Public Notification Rule.
Roman Forest Pud 4 TX1700237 · Community water system · Serves 60 3 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR) and Revised Total Coliform Rule (RTCR).
Earlys Bbq and Catering TX1700498 · Transient non-community system · Serves 50 3 rules violated in the past three years. Unresolved: Public Notification Rule.
3h Farms TX1700835 · Non-Transient non-community system · Serves 25 5 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.
East High School Magnolia Isd TX1700664 · Non-Transient non-community system · Serves 2,391 5 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.
Magnolia Isd Magnolia West High School TX1700765 · Non-Transient non-community system · Serves 2,075 5 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.
Magnolia Isd Bear Branch TX1700412 · Non-Transient non-community system · Serves 1,880 5 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.
Forest Trace TX1700869 · Community water system · Serves 1,000 5 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR), Lead and Copper Rule (LCR), and Lead and Copper Rule Revisions (LCRR).
Magnolia Isd Smith Elementary School TX1700656 · Non-Transient non-community system · Serves 900 5 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR) and Revised Total Coliform Rule (RTCR).
Magnolia Isd J L Lyons Elem TX1700569 · Non-Transient non-community system · Serves 858 5 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.

10 more systems with a serious violator or health flag designation are in the lists below.

Community water systems

338 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
City of Conroe
 113,912 0 0
Porter Special Utility District
 26,388 0 0
Montgomery Trace Water System
 25,917 1 0
Montgomery County MUD 46
 24,399 0 0
Montgomery County MUD 47
 24,171 0 0
Montgomery County MUD 67
 16,821 1 1
Montgomery County MUD 60
 15,036 0 0
New Caney MUD
 14,307 0 0
City of Willis
 14,133 9 2
Southern Montgomery County MUD
 13,372 1 0
Montgomery County MUD 7
 12,528 1 1
Rayford Road MUD
 11,550 0 0
City of Splendora
 9,612 5 1
Spring Creek Utility District
 8,919 0 0
Montgomery County MUD 6
 8,610 1 1
Old Egypt Subdivision
 8,442 0 0
The Woodlands MUD 1
 7,989 1 1
Montgomery County MUD 18
 7,608 0 0
City of Magnolia
 7,107 6 2
Montgomery County Wcid 1
 7,070 2 0
Montgomery County MUD 119 Spring Trails
 6,621 0 0
Montgomery County MUD 15
 6,564 0 0
Montgomery County MUD 95
 6,435 0 0
Town of Cut and Shoot
 6,000 0 0
Montgomery County MUD 9
 5,949 1 1
Benders Landing Water Plant 1 & 2
 5,892 0 0
Montgomery County MUD 139
 5,523 0 0
Montgomery County MUD 8
 5,472 1 0
Montgomery County MUD 112
 5,292 0 0
Montgomery County MUD 36
 5,235 1 1
Montgomery County MUD 94
 5,184 0 0
Montgomery County UD 4
 4,980 0 0
Dobbin Plantersville WSC 1
 4,767 4 0
Montgomery County MUD 89
 4,761 0 0
Montgomery County MUD 115
 4,599 0 0
Montgomery County MUD 19
 4,422 0 0
Montgomery County MUD 39
 4,284 0 0
Valley Ranch MUD 1
 4,056 0 0
East Montgomery County MUD 7
 4,017 0 0
East Montgomery County MUD 6
 3,987 0 0
Montgomery County UD 3
 3,825 0 0
Stanley Lake MUD
 3,783 0 0
Decker Hills
 3,780 3 1
City of Montgomery
 3,771 3 0
Montgomery County MUD 99
 3,675 0 0
Woodland Oaks Subdivision
 3,666 2 0
City of Oak Ridge North
 3,585 0 0
City of Shenandoah
 3,499 1 0
Montgomery County UD 2
 3,381 1 1
Montgomery County MUD 105
 3,282 0 0
Non-community systems (134: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Conroe Isd Moorehead JR High School
 4,945 0 0
Splendora Isd High School
 2,600 0 0
East High School Magnolia Isd
 2,391 5 3
Magnolia Isd Magnolia West High School
 2,075 5 3
Magnolia Isd Bear Branch
 1,880 5 3
Fellowship of Montgomery Church
 1,050 2 0
Valero Corner Store 1478
 1,007 2 0
Conroe Isd Creighton Intermediate
 952 0 0
Magnolia Isd Smith Elementary School
 900 5 1
Magnolia Isd J L Lyons Elem
 858 5 3
Piney Shores
 822 0 0
Conroe Isd San Jacinto Elementary
 718 1 0
Forest Lane Food Mart
 500 1 0
West Montgomery County Park
 500 1 0
Residence RV Park
 466 0 0
Leisure Lane RV Park
 456 0 0
830 Marina Store
 400 2 0
Lake Conroe RV Campground
 345 3 0
Sunset Shores RV Park
 342 0 0
Amber Springs Event Center
 300 0 0
Dinks Food Store
 300 0 0
FM 1485 C Store
 300 0 0
The Carriage House
 300 2 0
Rayford Business Park
 299 0 0
Indigo Hills RV Park Water System
 294 0 0
Canrig Drilling Technology
 290 2 0
Spring Creek Motor Coach Resort
 285 0 0
Valero 592
 275 0 0
Wisteria Road RV Park
 267 1 0
Leisure Lane RV Resort Magnolia
 264 0 0
242 Express Mart
 250 0 0
Angel Texaco
 250 2 0
Casey Ridge Grocery
 250 1 0
Corner Store the
 250 0 0
Country Food Mart
 250 3 1
Dollar General Cleveland
 250 0 0
Eagle Mart
 250 1 1
Piney Woods Mart
 250 0 0
Time Mart 16
 250 1 1
Uday 20
 250 0 0
Thrive With Autism Foundation
 249 2 0
Four Oaks RV Park
 213 0 0
Easy Lane Food Mart 6
 200 2 0
Fuel Maxx 10
 200 0 0
Lake Conroe Foodmart
 200 2 2
Lake Conroe Park
 200 2 0
Sunshine Food Mart 1
 200 0 0
Vernons Kuntry Katfish
 200 1 1
Wigginsville Victory Tabernacle
 200 2 0
Builders Firstsource Truss Manufacturing
 180 1 0
7e Property Holdings
 165 0 0
Rayford Crossing RV Resort
 165 2 0
Bronco Yee-Haw Event Center
 160 0 0
2978 Express
 150 0 0
Addison Woods Event Venue
 150 2 0
Asi Gymnastics
 150 2 0
Convenience RV Park
 150 0 0
Dollar General Conroe Store 22720
 150 0 0
Dollar General Magnolia
 150 0 0
Dollar General Willis Store 22547
 150 0 0
Iffi Stop 1 Food Market
 150 0 0
Midway 7
 150 0 0
Oakridge Ward Houston Texas North Stake
 150 1 0
Snappy Mart 6
 150 1 0
Stow a Way Marina
 150 0 0
Tam Nguyen Retreat Center
 150 0 0
Timber Ridge RV Village
 132 2 1
Met
 120 2 1
Weisinger I-45 Facility
 120 0 0
Grace Chapel Assembly of God
 108 3 0
Camp Robinwood
 100 2 2
Church Project
 100 3 1
Magnolia RV Park
 100 0 0
Saddle River Range
 100 0 0
Tenaris Conroe
 100 1 0
Third Coast Services
 100 1 0
Univar Solutions USA Conroe
 100 0 0
Rounhouse
 96 1 1
Premiere Park One
 90 0 0
Bridgewood Farms
 85 2 0
Met Daycare
 84 2 1
Allendale Baptist Church
 80 2 1
First Baptist Church Grangerland
 75 0 0
The Grove Community School
 75 0 0
Read Youth Charities Dba Deerfoot Youth
 70 0 0
Amore Ristorante
 68 0 0
Forest Park the Woodlands Funeral Home
 60 2 0
Rambling Vines RV Park
 60 0 0
Robbin Express
 60 2 0
Zotos Water 1
 60 0 0
Bailey Grove RV Park
 58 0 0
Ink Jet
 56 1 0
Ameritex Conroe Cbp1
 50 1 1
April Plaza Marina
 50 0 0
Blue Water L&c Properties
 50 0 0
Butera RV Park
 50 2 1
Christian Life Center
 50 2 1
Earlys Bbq and Catering
 50 3 1
Masjid Al-Ansaar
 50 0 0
San Jacinto River Authority Lake Conroe
 50 1 0
All 134 in the systems table
Inactive systems (335, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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.