PlainEnviro

Montgomery, TX

High Risk (74/100)

Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.

Environmental data for Montgomery in Texas · Population: 654,722

TRI sites such as Union Processing Systems LLC; Huntsman Petrochemical LLC; Sabre Industries; SDWIS systems such as PORTER SPECIAL UTILITY DISTRICT; MONTGOMERY COUNTY MUD 46; MONTGOMERY COUNTY MUD 47; NPL sites such as Conroe Creosoting Company; United Creosoting Co. anchor Montgomery, TX's EPA extract. Derived burden score 74/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.

EPCRA disclosures in Montgomery total 22.5M lbs; health-flagged SDWIS rows include PORTER SPECIAL UTILITY DISTRICT; MONTGOMERY COUNTY MUD 47; MONTGOMERY COUNTY MUD 60, while Union Processing Systems LLC leads TRI pounds. AQS median AQI 55 / peak 166 in 2024.

Largest TRI sites in the extract: Union Processing Systems LLC; Huntsman Petrochemical LLC; Sabre Industries. Named SDWIS systems: PORTER SPECIAL UTILITY DISTRICT; MONTGOMERY COUNTY MUD 46; MONTGOMERY COUNTY MUD 47. NPL sites on record: Conroe Creosoting Company; United Creosoting Co.. Burden score 74/100 (High Risk) is the only weighted composite here; tables reproduce EPA disclosure history, not a current-safety verdict.

Release-over-release change

What changed for Montgomery, TX: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

-25.8%

26 facilities that filed in 2022 and 2023

Whole inventory

-25.8%

5.8 million lb → 4.3 million lb, every facility that filed

Between the two reporting years, 1 facility filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.

  • Montgomery, TX's total reported releases fell from 5.8 million lb in 2022 to 4.3 million lb in 2023, based on EPA TRI filings.
  • Montgomery, TX's water releases rose from 72 lb in 2022 to 713 lb in 2023, based on EPA TRI filings.
  • Montgomery, TX's off-site transfers rose from 569.2 thousand lb in 2022 to 770.9 thousand lb in 2023, based on EPA TRI filings.
  • Montgomery, TX's land releases fell from 5.1 million lb in 2022 to 3.4 million lb in 2023, based on EPA TRI filings.
County population (Census ACS)
654,722
TRI Facilities
33
Water Systems
174
Superfund Sites
2
Total Releases
22.5M lbs

Air Quality History (2020–2024)

EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.

Year Good Moderate Unhealthy (SG) Max AQI
2024 111 (31%) 231 20 166
2023 151 (41%) 204 9 122
2022 175 (48%) 183 6 126
2021 204 (57%) 152 2 151
2020 219 (60%) 139 8 129
2024 Good Air Quality: 31% of days
Unhealthy days: 21
Median AQI: 55

Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)

For real-time air quality readings and pollutant breakdowns in Texas, see the EPA's AirNow.gov.

Water Systems (174)

System System pop (SDWIS) Violations
PORTER SPECIAL UTILITY DISTRICT 26,388 4
MONTGOMERY COUNTY MUD 46 24,399 0
MONTGOMERY COUNTY MUD 47 24,171 2
MONTGOMERY COUNTY MUD 67 16,821 0
MONTGOMERY COUNTY MUD 60 15,036 6
NEW CANEY MUD 14,307 0
CITY OF WILLIS 14,133 3
MONTGOMERY COUNTY MUD 7 12,528 2
CITY OF SPLENDORA 9,612 1
MONTGOMERY COUNTY MUD 6 8,610 0
THE WOODLANDS MUD 1 7,989 0
HARRIS COUNTY MUD 238 7,773 6
MONTGOMERY COUNTY MUD 18 7,608 0
CITY OF MAGNOLIA 7,107 0
GRAND SAN JACINTO WATER SYSTEM 6,174 0
TOWN OF CUT AND SHOOT 6,000 0
BENDERS LANDING WATER PLANT 1 & 2 5,892 0
MONTGOMERY COUNTY MUD 36 5,235 0
CAMINO REAL 5,160 0
REID ROAD MUD 2 4,662 0
MONTGOMERY COUNTY MUD 39 4,284 0
WEST MEMORIAL MUD 4,182 0
CITY OF SHENANDOAH 4,172 0
HARRIS COUNTY MUD 304 4,158 0
BAUER RANCH SUBDIVISION 3,990 0
BELLA VISTA 3,876 0
STANLEY LAKE MUD 3,783 0
CITY OF MONTGOMERY 3,771 4
HARRIS COUNTY MUD 361 3,705 0
CITY OF OAK RIDGE NORTH 3,585 0
WESTWOOD NORTH WSC 3,186 0
MONTGOMERY COUNTY MUD 88 3,183 4
LAKE WINDCREST WATER SYSTEM 3,144 0
CITY OF PANORAMA VILLAGE 2,800 0
CHATEAU WOODS MUD WATER SYSTEM 2,700 0
INDIGO LAKES WATER SYSTEM 2,517 0
ROMAN FOREST CONSOLIDATED MUD 2,418 0
KIPLING OAKS 1 2,418 3
LONE STAR PUBLIC WATER SYSTEM 2,397 0
CREEKSIDE VILLAGE 2,277 0
MILL CREEK 2,232 0
LAKE BONANZA WSC 2,142 7
WOODWAY SUBDIVISION WATER SYSTEM 2,082 0
WALNUT COVE WSC 2,076 0
COE COUNTRY 2,067 1
MOSTYN MANOR 2,058 0
DECKER OAKS 1,986 0
EMERSON ESTATES 1,974 0
WOODLANDS HILLS WATER 1,797 0
DECKER FARMS WATER PLANT 1,737 0
THE WOODLANDS METRO CENTER MUD 1,725 0
DOMESTIC WATER COMPANY ROYAL FOREST SUBD 1,667 0
LAKES OF FAIRHAVEN 1,623 0
CITY OF WOODBRANCH VILLAGE 1,536 0
TOWERING OAKS AND ROSEWOOD HILLS SUBDIVI 1,497 2
CEDAR CREEK WATER SYSTEM 1,458 0
HUNTERS RETREAT 1,458 2
PATTON VILLAGE WEST WATER SYSTEM 1,457 1
TRAILS END SUBDIVISION 1,444 0
NORTHCREST RANCH WATER SYSTEM 1,341 0
BRIDLEWOOD ESTATES WATER SYSTEM 1,311 0
FREEMAN RANCH 1,308 0
KEENAN WSC 1,245 0
TIMBERWILDE MH SUBDIVISION 1,233 1
RED OAK RANCH WATER SYSTEM 1,233 0
SENDERA RANCH 1,110 0
LAKEHOUSE WATER PLANT 1,071 0
MEADOW GLEN CRYSTAL SPRINGS WATER 966 0
FAIRFIELD ESTATES 954 0
KATY HOCKLEY REGIONAL WATER PLANT 936 0
WHITE OAK WATER SUPPLY CORPORATION 900 0
VACEK COUNTRY MEADOWS 882 0
FLAGSTONE WATER PLANT 876 0
SAN JO UTILITIES 792 1
TEXAS GRAND RANCH 783 0
BINFORD CREEK 750 0
TOWN OF WOODLOCH 747 2
ROSEHILL MEADOW WATER PLANT 741 0
PINE ACRE TRAILS 732 0
ARMADILLO WOODS SUBDIVISION 699 1
DEER TRAIL WATER DISTRICT 693 0
LEXINGTON HEIGHTS SUBDIVISION 681 0
MAGNOLIA RESERVE WATER PLANT 675 0
CLEAR WATER COVE 645 0
LAKE SOUTH WSC 628 0
OLYMPIA FALLS WATER PLANT 594 0
TEXABA SUBDIVISION 590 3
TIMBER LINE ESTATES 579 2
ROGERS ROAD WATER SYSTEM 567 0
CREEKSIDE ACRES WATER SYSTEM 567 0
PLEASANT FOREST SUBDIVISION 564 1
ROMAN FOREST PUD 3 549 0
COLONY AT PINEHURST WATER SYSTEM 540 0
RED BUD WATER PLANT 501 0
BRAZOS LAKES WATER SUPPLY 495 0
DIAMOND HEAD WSC 480 0
SOUTHAMPTON SUBDIVISION 474 0
TRAIL AT COCHRAN RANCH WATER PLANT 462 0
VILLAGE OF NEW KENTUCKY 459 0
TIERRA LINDA ESTATES 450 0
TIERRA DEL REY 438 0
SWEETWATER RIDGE WATER PLANT 429 0
MONTGOMERY COUNTY FWSD 6 426 0
OAK VILLA MOBILE HOME COMMUNITY 420 2
LAKEVIEW WATER 411 0
H O E WSC 410 1
SENDERA LAKE ESTATES 408 1
2920 WEST SUBDIVISION 384 0
WILLOW OAKS MOBILE HOME SUBDIVISION 375 1
HWY 59 ESTATES 372 0
WAVERLY ACRES WATER SYSTEM 369 0
ALLENWOOD SUBDIVISION 360 0
CONROE BAY WATER SEWER SUPPLY 345 0
PINEDALE MOBILE HOME COMMUNITY 330 0
ALICE ACRES MOBILE HOME SUBDIVISION 315 0
BRANDYWINE PINES 306 0
LAKELAND WATER SYSTEM 303 0
SONOMA RIDGE-MCCALL SOUND 294 0
BRIDGEPOINT SUBDIVISION 291 0
MOUNT PLEASANT VILLAGE WATER SYSTEM 255 0
CAPE MALIBU WSC 250 2
PINE LAKE SUBDIVISION NORTH WSC 249 2
FLAMINGO LAKES LOT OWNERS ASSOCIATION IN 246 0
INDIAN SPRINGS WATER SYSTEM 240 0
SETTLERS CROSSING 240 0
BEE CREEK ESTATES 228 0
FIVE OAKS ESTATES 225 0
H-M-W SUD OAKWOOD SUBDIVISION 204 0
DEL LAGO ESTATES WSC 201 0
CEDAR CREEK FOREST MOBILE HOME COMMUNITY 195 0
BAUER MEADOWS 190 0
TREICHEL WOODS ESTATES 174 1
DEER RIDGE SUBDIVISION 165 1
RIMWICK FOREST 162 1
IS ZEN CENTER LOTUS LAKE 160 0
SHANNON PLACE WATER SYSTEM 159 0
RED OAK TERRACE 159 2
NEW DANVILLE COMMUNITY 159 7
KICKAPOO FARMS SUBDIVISION 156 1
MINK BRANCH VALLEY 150 1
WEAVERVILLE HILLS MHP 147 0
TRAILWOOD SUBDIVISION 147 1
CYPRESS PASS ESTATES 144 1
BAUER CENTURY WATER PLANT 144 0
CYPRESS CROSSING 138 1
BRANDYWINE OAKS 135 0
REMINGTON PLACE 135 0
MEACHEN MEADOWS SUBDIVISION WATER SYSTEM 132 1
RANCH HILL 129 0
THE PRESERVE WATER SYSTEM 129 1
LAKE LORRAINE WS 126 0
GRANT ROAD ESTATES MOBILE HOME SUB 99 1
RIVER OAKS SUNSHINE ACRES 99 6
PURPLE SAGE COMMUNITY 98 3
LAKEWOOD ON LAKE CONROE POA 96 1
WALNUT GROVE MHP 75 0
COE INDUSTRIAL PARK 72 1
SHADY ACRES 66 2
HOLLY OAKS MOBILE HOME PARK 63 1
ROMAN FOREST PUD 4 60 10
LAKE CONROE TERRACE WATER SYSTEM 57 0
DELYNN WATER SYSTEM 55 3
SADDLE & SURREY ACRES WSC 54 8
A & S WATER SERVICES 52 56
RUSTIC OAKS SUBDIVISION 48 1
MONTGOMERY COUNTY MUD 209 45 0
HOUSE CORRAL STREET WATER SYSTEM 42 0
BIG OAKS RANCHETTE SUBDIVISION 42 0
ESTATES OF HOLLY LAKES 33 1
WHITE ROCK 25 0
CYPRESS GREEN REGIONAL WATER PLANT 0 0
AURORA WATER PLANT 0 0
MAVERA REGIONAL WATER PLANT 0 0
SUNTERRA REGIONAL WATER PLANT 0 0

TRI Facilities (33)

# Facility Total Releases
1 Union Processing Systems LLC 18.3M lbs
2 Huntsman Petrochemical LLC 2.1M lbs
3 Sabre Industries 953.8K lbs
4 Crown Beverage Packaging 520.5K lbs
5 Ball Metal Beverage Container Corp 320.8K lbs
6 Hempel (usa) Inc 54.3K lbs
7 Hiland Dairy Foods LLC 44.7K lbs
8 Univar Solutions USA 41.8K lbs
9 Nov Downhole Conroe 26.2K lbs
10 R&d Marble Inc. 16.2K lbs
11 Lamberti USA Conroe Plant 8910 14.3K lbs
12 Sigma Life Sciences 9.5K lbs
13 Welldynamics Inc 6.5K lbs
14 Scan Pac Manufacturing Inc 5.9K lbs
15 Lamberti USA Conroe Plant 8920 2.0K lbs
16 Maverick Tube LLC DBA Tenarisconroe 1.9K lbs
17 Inkjet Inc 1.3K lbs
18 Baker Hughes - Hughes Christensen 1.2K lbs
19 Nov Conroe Brandt/portable Power & R&d Rig Solutions Scot 1.1K lbs
20 Conroe Gas Processing Plant 1.0K lbs
21 Nov Texas Oil Tools/ctes Conroe 655 lbs
22 Utex Industries Inc. 500 lbs
23 Halliburton Drill Bits & Services 165 lbs
24 Cst Covers 27 lbs
25 Allied Plant 10 - New Caney 16 lbs
26 Tuf-Crete Plant 1 lbs
27 Heidelberg Materials - Conroe Rmc 0 lbs
28 Holcim-Sor Inc.- Conroe Rmx 0 lbs
29 Heidelberg Materials - Magnolia Rmc 0 lbs
30 Forterra Pipe & Precast LLC 0 lbs
31 Cemex Construction Materials Houston LLC - Willis 0 lbs
32 Sterling Custom Sheet Metal 0 lbs
33 Hixson Lumber Co. LLC 0 lbs

Superfund Sites (2)

Site Name Status HRS Score
Conroe Creosoting Company NPL Site 48.00
United Creosoting Co. NPL Site 37.29

Cities in Montgomery (13)

Conroe
21 facilities · 60 water
Magnolia
4 facilities · 46 water
Willis
4 facilities · 21 water
The Woodlands
2 facilities · 21 water
New Caney
2 facilities · 6 water
Pinehurst
0 facilities · 38 water
Montgomery
0 facilities · 14 water
Porter
0 facilities · 2 water
Splendora
0 facilities · 2 water
Cut And Shoot
0 facilities · 1 water
Oak Ridge North
0 facilities · 1 water
Panorama Village
0 facilities · 1 water
Shenandoah
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Montgomery, Texas? ▼
Montgomery, TX has an environmental risk score of 74/100 (High Risk), based on 33 TRI facilities, 2 Superfund sites, and 174 water systems on record. 53 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Montgomery? ▼
Yes, Montgomery, TX has 2 Superfund sites on the EPA National Priorities List (NPL). Superfund sites are contaminated locations that require long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
How many toxic release facilities are in Montgomery? ▼
Montgomery, TX has 33 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 22.5M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Montgomery? ▼
In 2024, Montgomery, TX recorded a median AQI of 55 and a peak AQI of 166. 31% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Montgomery? ▼
Montgomery, TX has 174 EPA-regulated water systems. 53 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Montgomery? ▼
Environmental compliance in Montgomery, Texas is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Texas state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

What does this county environmental profile show?

This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.

Related Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro