County · Texas
Montgomery County, Texas: drinking water records
Explore EPA records for 336 community water systems across 22 ZIP codes in Montgomery County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 42 of the 336 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 336 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Montgomery County MUD 47 TX1700458 | 24,171 | 120 | 0 | 1 | 0.7 ppbbelow the action level |
| Montgomery County MUD 60 TX1700470 | 15,036 | 120 | 0 | 3 | 3.2 ppbbelow the action level |
| City of Willis TX1700003 | 14,133 | 180 | 0 | 2 | 0.7 ppbbelow the action level |
| Montgomery County MUD 7 TX1700169 | 12,528 | 120 | 0 | 1 | 1.7 ppbbelow the action level |
| City of Splendora TX1700087 | 9,612 | 180 | 0 | 1 | 0 ppbbelow the action level |
| Dobbin Plantersville WSC 1 TX1700178 | 4,767 | 180 | 0 | 5 | 0 ppbbelow the action level |
| Texas National MUD TX1700207 | 931 | 60 | 0 | 1 | 0 ppbbelow the action level |
| City of Conroe TX1700001 | 113,912 | 1,265 | 0 | 0 | 0 ppbbelow the action level |
| Porter Special Utility District TX1700068 | 26,388 | 240 | 0 | 0 | 0.6 ppbbelow the action level |
| Montgomery Trace Water System TX1700638 | 25,917 | 540 | 1 | 0 | 0.4 ppbbelow the action level |
| Montgomery County MUD 46 TX1700348 | 24,399 | 120 | 1 | 0 | 2.5 ppbbelow the action level |
| Montgomery County MUD 67 TX1700554 | 16,821 | 120 | 0 | 0 | 0.8 ppbbelow the action level |
| New Caney MUD TX1700101 | 14,307 | 180 | 0 | 0 | 0 ppbbelow the action level |
| Southern Montgomery County MUD TX1700073 | 13,372 | 300 | 0 | 0 | 0 ppbbelow the action level |
| Rayford Road MUD TX1700334 | 11,550 | 180 | 0 | 0 | 0.8 ppbbelow the action level |
| Spring Creek Utility District TX1700133 | 8,919 | 60 | 0 | 0 | 1.1 ppbbelow the action level |
| Montgomery County MUD 6 TX1700090 | 8,610 | 120 | 0 | 0 | 3.3 ppbbelow the action level |
| Old Egypt Subdivision TX1700666 | 8,442 | 240 | 0 | 0 | 0 ppbbelow the action level |
| The Woodlands MUD 1 TX1700471 | 7,989 | 120 | 0 | 0 | 1.1 ppbbelow the action level |
| Montgomery County MUD 18 TX1700546 | 7,608 | 120 | 2 | 0 | 0 ppbbelow the action level |
| City of Magnolia TX1700020 | 7,107 | 0 | 0 | 1 | 0.6 ppbbelow the action level |
| Montgomery County WCID 1 TX1700119 | 7,070 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 119 Spring Trails TX1700773 | 6,621 | 120 | 0 | 0 | 1.0 ppbbelow the action level |
| Montgomery County MUD 15 TX1700118 | 6,564 | 120 | 2 | 0 | 0.8 ppbbelow the action level |
| Town of Cut and Shoot TX1700592 | 6,000 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 9 TX1700220 | 5,949 | 180 | 0 | 0 | 1.0 ppbbelow the action level |
| Benders Landing Water Plant 1 & 2 TX1700678 | 5,892 | 180 | 0 | 0 | 2.2 ppbbelow the action level |
| Montgomery County MUD 8 TX1700176 | 5,472 | 180 | 0 | 0 | 0.5 ppbbelow the action level |
| Montgomery County MUD 112 TX1700762 | 5,454 | 60 | 0 | 0 | 1.4 ppbbelow the action level |
| Montgomery County MUD 36 TX1700139 | 5,235 | 116 | 0 | 0 | 1.2 ppbbelow the action level |
| Montgomery County MUD 94 TX1700716 | 5,184 | 60 | 0 | 0 | 0.6 ppbbelow the action level |
| Montgomery County UD 4 TX1700286 | 4,980 | 120 | 0 | 0 | 2.2 ppbbelow the action level |
| Montgomery County MUD 89 TX1700717 | 4,761 | 120 | 0 | 0 | 1.4 ppbbelow the action level |
| Montgomery County MUD 19 TX1700319 | 4,422 | 180 | 0 | 0 | 0.6 ppbbelow the action level |
| Montgomery County MUD 39 TX1700332 | 4,284 | 120 | 0 | 0 | 0.6 ppbbelow the action level |
| Valley Ranch MUD 1 TX1700752 | 4,056 | 60 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County UD 3 TX1700116 | 3,825 | 120 | 0 | 0 | 1.2 ppbbelow the action level |
| Stanley Lake MUD TX1700097 | 3,783 | 240 | 0 | 0 | 0 ppbbelow the action level |
| Decker Hills TX1700386 | 3,780 | 240 | 0 | 0 | 4.7 ppbbelow the action level |
| City of Montgomery TX1700022 | 3,771 | 0 | 0 | 1 | 0.6 ppbbelow the action level |
| Woodland Oaks Subdivision TX1700648 | 3,666 | 120 | 0 | 0 | 0 ppbbelow the action level |
| City of Oak Ridge North TX1700025 | 3,585 | 120 | 0 | 0 | 3.4 ppbbelow the action level |
| Timberland Estates TX1700612 | 2,886 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Woodridge MUD TX1700859 | 2,550 | 60 | 0 | 0 | 0 ppbbelow the action level |
| Kipling Oaks 1 TX1700228 | 2,418 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Lake Bonanza WSC TX1700578 | 2,142 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Coe Country TX1700318 | 2,067 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Carriage Hills TX1700279 | 1,833 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Deer Glen Water System TX1700322 | 1,539 | 0 | 0 | 1 | 0.7 ppbbelow the action level |
| Towering Oaks and Rosewood Hills Subdivi TX1700317 | 1,497 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Hunters Retreat TX1700149 | 1,458 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Patton Village West Water System TX1700032 | 1,457 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Country West TX1700435 | 1,188 | 0 | 0 | 2 | 0.8 ppbbelow the action level |
| Conroe Resort TX1700416 | 1,068 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Forest Trace TX1700869 | 1,000 | 0 | 0 | 1 | 0.6 ppbbelow the action level |
| Montgomery County MUD 141 TX1700866 | 978 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Washington County Railroad TX1700208 | 795 | 0 | 0 | 1 | 0.8 ppbbelow the action level |
| San Jo Utilities TX1700327 | 792 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Town of Woodloch TX1700112 | 747 | 0 | 0 | 1 | 0.8 ppbbelow the action level |
| Ponderosa Pines Water System TX1700868 | 735 | 0 | 0 | 1 | 0.8 ppbbelow the action level |
| Cimarron Country TX1700555 | 726 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Armadillo Woods Subdivision TX1700447 | 699 | 0 | 0 | 1 | 3.5 ppbbelow the action level |
| Shady Oaks Estates TX1700632 | 648 | 0 | 0 | 11 | 0 ppbbelow the action level |
| Timber Line Estates TX1700728 | 579 | 0 | 0 | 1 | 1.2 ppbbelow the action level |
| Pleasant Forest Subdivision TX1700245 | 564 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Eastwood Hills Subdivision TX1700478 | 474 | 0 | 0 | 1 | 0.9 ppbbelow the action level |
| Serenity Woods Subdivision TX1700483 | 468 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Bennett Woods TX1700290 | 435 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Live Oak Estates TX1700198 | 420 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Lilliput Farms Water System TX1700844 | 408 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Sendera Lake Estates TX1700565 | 408 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Oak Tree Subdivision TX1700695 | 360 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Whispering Pines TX1700066 | 351 | 0 | 0 | 1 | 1.3 ppbbelow the action level |
| Woodland Ranch TX1700657 | 339 | 0 | 0 | 1 | 8 ppbbelow the action level |
| Western Hills Crystal Springs Water TX1700629 | 330 | 0 | 0 | 2 | 1.1 ppbbelow the action level |
| White Oak Hills TX1700613 | 315 | 0 | 0 | 1 | 2.3 ppbbelow the action level |
| Lake Louise Subdivision TX1700184 | 309 | 0 | 0 | 3 | 1.4 ppbbelow the action level |
| Westmont Mobile Home Community TX1700490 | 309 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Paradise Cove Water System TX1700628 | 298 | 0 | 0 | 1 | 0 ppbbelow the action level |
| River Club Water TX1700185 | 273 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Tower Glen Estates TX1700433 | 255 | 0 | 0 | 1 | 0.8 ppbbelow the action level |
| Peach Creek Oaks Subdivision TX1700051 | 250 | 0 | 0 | 1 | 0.5 ppbbelow the action level |
| Pine Lake Subdivision North WSC TX1700382 | 249 | 0 | 0 | 2 | 1.4 ppbbelow the action level |
| Highline Oaks Water Utility TX1700676 | 242 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Montgomery Place Water System TX1700074 | 207 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Everett Square Windcrest Estates TX1700427 | 204 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Crystal Springs Water Company Chasewood TX1700622 | 195 | 0 | 0 | 1 | 0.3 ppbbelow the action level |
| Shady Brook Acres TX1700031 | 189 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Monterrey Oaks TX1700879 | 180 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Deer Ridge Subdivision TX1700307 | 165 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Rimwick Forest TX1700156 | 162 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Mink Branch Valley TX1700150 | 150 | 0 | 0 | 1 | 0.4 ppbbelow the action level |
| Lake Creek Falls TX1700719 | 147 | 0 | 0 | 1 | 3.0 ppbbelow the action level |
| Oak Creek II TX1700432 | 144 | 0 | 0 | 1 | 0.4 ppbbelow the action level |
| Chaparral Place Water System TX1700434 | 135 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Meachen Meadows Subdivision Water System TX1700183 | 132 | 0 | 0 | 1 | 1.6 ppbbelow the action level |
| Autumn Acres Water System TX1700756 | 129 | 0 | 0 | 2 | 1.3 ppbbelow the action level |
| Stone Hedge Estates TX1700102 | 129 | 0 | 0 | 1 | 0 ppbbelow the action level |
| The Preserve Water System TX1700942 | 129 | 0 | 0 | 1 | 0.7 ppbbelow the action level |
| Lazy Lane Mobile Home Park TX1700344 | 120 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Vista Verde Water Systems TX1700694 | 111 | 0 | 0 | 15 | 2.6 ppbbelow the action level |
| Tower Woods TX1700289 | 108 | 0 | 0 | 2 | 0.8 ppbbelow the action level |
| Lakewood on Lake Conroe Poa TX1700661 | 96 | 0 | 0 | 1 | 1.3 ppbbelow the action level |
| Chanticor Series TX1700727 | 90 | 0 | 0 | 3 | 1.7 ppbbelow the action level |
| Winchester Place TX1700466 | 84 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Wood Acres MHP TX1700426 | 78 | 0 | 0 | 1 | 4.0 ppbbelow the action level |
| Magnolia Country RV Park TX1700730 | 75 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Woodridge Estates Water System TX1700075 | 72 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Shady Acres TX1700083 | 66 | 0 | 0 | 1 | 4.7 ppbbelow the action level |
| Havenshire Water System TX1700588 | 63 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Holly Oaks Mobile Home Park TX1700839 | 63 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Roman Forest PUD 4 TX1700237 | 60 | 0 | 0 | 5 | 12 ppbbelow the action level |
| Saddle & Surrey Acres WSC TX1700378 | 54 | 0 | 0 | 5 | 0.9 ppbbelow the action level |
| A & S Water Services TX1700891 | 52 | 0 | 0 | 20 | 0 ppbbelow the action level |
| Rustic Oaks Subdivision TX1700410 | 48 | 0 | 0 | 1 | 0 ppbbelow the action level |
| The Oaks TX1700626 | 48 | 0 | 0 | 1 | 0.7 ppbbelow the action level |
| Beau View Utilities TX1700708 | 45 | 0 | 0 | 1 | 2 ppbbelow the action level |
| 1485 Limited Crystal Springs Water TX1700580 | 33 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Montgomery County MUD 95 TX1700779 | 6,435 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 139 TX1700832 | 5,523 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 115 TX1700770 | 4,599 | 0 | 0 | 0 | 1.8 ppbbelow the action level |
| City of Shenandoah TX1700002 | 4,172 | 0 | 0 | 0 | 0 ppbbelow the action level |
| East Montgomery County MUD 7 TX1700881 | 4,035 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| East Montgomery County MUD 6 TX1700753 | 3,939 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 99 TX1700749 | 3,675 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Montgomery County UD 2 TX1700115 | 3,381 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 105 TX1700837 | 3,282 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Point Aquarius MUD TX1700060 | 3,228 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Westwood North WSC TX1700291 | 3,186 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 88 TX1700776 | 3,183 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Lake Windcrest Water System TX1700624 | 3,144 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 191 TX1700933 | 3,099 | 0 | 0 | 0 | 2.6 ppbbelow the action level |
| Wood Trace MUD 1 TX1700642 | 3,084 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lake Conroe Village TX1700543 | 2,961 | 0 | 0 | 0 | 0 ppbbelow the action level |
| River Plantation MUD TX1700028 | 2,898 | 0 | 0 | 0 | 2.0 ppbbelow the action level |
| East Montgomery County MUD 12 TX1700898 | 2,838 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Riverwalk Subdivision TX1700604 | 2,820 | 0 | 0 | 0 | 0 ppbbelow the action level |
| City of Panorama Village TX1700026 | 2,800 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 98 TX1700746 | 2,766 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Chateau Woods MUD Water System TX1700008 | 2,700 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 24 TX1700269 | 2,613 | 0 | 0 | 0 | 1.0 ppbbelow the action level |
| Montgomery County MUD 84 TX1700743 | 2,553 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Indigo Lakes Water System TX1700576 | 2,517 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 111 TX1700883 | 2,502 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 127 TX1700860 | 2,478 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Grand Estates TX1700853 | 2,433 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Hazy Hollow East Estates TX1700013 | 2,424 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Roman Forest Consolidated MUD TX1700071 | 2,418 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 137 TX1700840 | 2,409 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Lone Star Public Water System TX1700655 | 2,397 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Grand Harbor Water System TX1700643 | 2,370 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Harris Montgomery Counties MUD 386 May V TX1700796 | 2,364 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 96 TX1700847 | 2,334 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Creekside Village TX1700742 | 2,277 | 0 | 0 | 0 | 0 ppbbelow the action level |
| East Montgomery County MUD 3 TX1700705 | 2,250 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Mill Creek TX1700857 | 2,232 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Arrowhead Lake & Frontier Lake TX1700171 | 2,208 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 83 TX1700581 | 2,208 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 144 TX1700908 | 2,106 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 164 TX1700894 | 2,076 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| Walnut Cove WSC TX1700389 | 2,076 | 0 | 0 | 0 | 2.6 ppbbelow the action level |
| Black Oak Water System TX1700851 | 2,073 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lake Conroe Hills MUD TX1700140 | 2,058 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Mostyn Manor TX1700669 | 2,058 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Audubon MUD 1 TX1700906 | 2,049 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Far Hills Utility District TX1700011 | 2,030 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Grand Oaks MUD TX1700757 | 2,013 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Decker Oaks TX1700605 | 1,986 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Emerson Estates TX1700683 | 1,974 | 0 | 0 | 0 | 0 ppbbelow the action level |
| East Plantation Utility District TX1700283 | 1,896 | 0 | 0 | 0 | 4.2 ppbbelow the action level |
| Clear Creek Forest Section 12 TX1700437 | 1,836 | 0 | 0 | 0 | 0 ppbbelow the action level |
| High Meadows Ranch Water Supply TX1700603 | 1,827 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 180 TX1700925 | 1,827 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Decker Farms Water Plant TX1700922 | 1,737 | 0 | 0 | 0 | 0.5 ppbbelow the action level |
| The Woodlands Metro Center MUD TX1700309 | 1,725 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Domestic Water Company Royal Forest Subd TX1700037 | 1,667 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Ranch Crest Subdivision TX1700734 | 1,623 | 0 | 0 | 0 | 0 ppbbelow the action level |
| City of Woodbranch Village TX1700304 | 1,536 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| East Montgomery County MUD 4 TX1700741 | 1,500 | 0 | 0 | 0 | 0.7 ppbbelow the action level |
| Montgomery County MUD 145 TX1700930 | 1,476 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 166 TX1700903 | 1,443 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pinehurst Decker Prairie WSC TX1700507 | 1,437 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Caddo Village TX1700473 | 1,428 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Deerwood Subdivision TX1700264 | 1,359 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Montgomery County MUD 152a TX1701014 | 1,344 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Northcrest Ranch Water System TX1700623 | 1,341 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Estates Woodland II TX1700852 | 1,248 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Keenan WSC TX1700005 | 1,245 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Red Oak Ranch Water System TX1700609 | 1,233 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 199 TX1700940 | 1,203 | 0 | 0 | 0 | 1.0 ppbbelow the action level |
| Lake Conroe Forest Subdivision TX1700134 | 1,185 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Thousand Oaks TX1700635 | 1,158 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Sendera Ranch TX1700577 | 1,110 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Corinthian Point MUD 2 TX1700152 | 1,086 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Dogwood Hills TX1700129 | 1,074 | 0 | 0 | 0 | 1.1 ppbbelow the action level |
| Emerald Lakes Subdivision TX1700777 | 1,053 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Hidden Forest Estates TX1700173 | 990 | 0 | 0 | 0 | 2.5 ppbbelow the action level |
| Montgomery County MUD 56 TX1700489 | 963 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Rio Vista Subdivision TX1700778 | 942 | 0 | 0 | 0 | 0 ppbbelow the action level |
| White Oak Water Supply Corporation TX1700616 | 900 | 0 | 0 | 0 | 1.7 ppbbelow the action level |
| Lakes of Magnolia TX1700736 | 897 | 0 | 0 | 0 | 2.4 ppbbelow the action level |
| Shadow Bay Subdivision TX1700393 | 828 | 0 | 0 | 0 | 2.5 ppbbelow the action level |
| Lake Creek Forest TX1700529 | 822 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Crown Ranch Subdivision TX1700781 | 798 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Hulon Lakes Subdivision TX1700014 | 771 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Spring Forest Subdivision TX1700033 | 759 | 0 | 0 | 0 | 1.5 ppbbelow the action level |
| White Oak Valley Estates Water System TX1700036 | 750 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Northwoods WSC TX1700160 | 741 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pine Acre Trails TX1700907 | 732 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Decker Woods Subdivision TX1700330 | 711 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Timberloch Estates TX1700641 | 705 | 0 | 0 | 0 | 2.1 ppbbelow the action level |
| Deer Trail Water District TX1700901 | 693 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| Lexington Heights Subdivision TX1700948 | 681 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Magnolia Reserve Water Plant TX1700864 | 675 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lazy River Improvement District TX1700039 | 672 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Dos Aguas TX1700917 | 669 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Clovercreek MUD TX1700589 | 662 | 0 | 0 | 0 | 3.7 ppbbelow the action level |
| Montgomery County MUD 100 TX1700927 | 651 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Clear Water Cove TX1700480 | 645 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Crystal Forest Subdivision TX1700096 | 642 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 42 TX1700320 | 630 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lake South WSC TX1700713 | 628 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 16 White Oak Plant TX1700164 | 627 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Walnut Springs TX1700128 | 624 | 0 | 0 | 0 | 8.4 ppbbelow the action level |
| Estates of Legends Ranch TX1700702 | 591 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Texaba Subdivision TX1700621 | 590 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Turtle Creek TX1700287 | 579 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Creekside Acres Water System TX1700680 | 567 | 0 | 0 | 0 | 7 ppbbelow the action level |
| Lake Forest Falls Subdivision TX1700017 | 567 | 0 | 0 | 0 | 2.4 ppbbelow the action level |
| Rogers Road Water System TX1700590 | 567 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Deer Pines Subdivision TX1700895 | 558 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Roman Forest PUD 3 TX1700238 | 549 | 0 | 0 | 0 | 1.6 ppbbelow the action level |
| Woodland Lakes Estates TX1700080 | 543 | 0 | 0 | 0 | 6.5 ppbbelow the action level |
| Colony at Pinehurst Water System TX1700858 | 540 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Peach Creek Plantation Water System TX1700783 | 534 | 0 | 0 | 0 | 0 ppbbelow the action level |
| White Oak Ranch Section One TX1700670 | 495 | 0 | 0 | 0 | 0.3 ppbbelow the action level |
| Cypresswood Subdivision Water System TX1700918 | 490 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Diamond Head WSC TX1700143 | 480 | 0 | 0 | 0 | 2.9 ppbbelow the action level |
| Sunrise Ranch TX1700686 | 468 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Residence RV Park TX1700999 | 466 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Huntington Estates TX1700324 | 462 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Montgomery County MUD 140 TX1700946 | 462 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Harborside TX1700682 | 432 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Sweetwater Ridge Water Plant TX1700941 | 429 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Montgomery County FWSD 6 TX1700142 | 426 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Porter Terrace TX1700161 | 417 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Airport Road MUD TX1700975 | 411 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Indigo Ranch TX1700651 | 402 | 0 | 0 | 0 | 1.1 ppbbelow the action level |
| Pioneer Trails Subdivision TX1700114 | 384 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Deer Run TX1700700 | 372 | 0 | 0 | 0 | 5.3 ppbbelow the action level |
| Brushy Creek Utility TX1700601 | 369 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Allenwood Subdivision TX1700131 | 360 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Conroe Bay Water Sewer Supply TX1700225 | 345 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Blaketree MUD 1 TX1700784 | 336 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 162 TX1700995 | 333 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Heritage Oaks Subdivision TX1700121 | 330 | 0 | 0 | 0 | 2.7 ppbbelow the action level |
| Montgomery County MUD 211 TX1700977 | 330 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pinedale Mobile Home Community TX1700482 | 330 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Piney Point Subdivision TX1700061 | 327 | 0 | 0 | 0 | 0.2 ppbbelow the action level |
| Lakeland Water System TX1700019 | 303 | 0 | 0 | 0 | 1.7 ppbbelow the action level |
| Old Mill Lake TX1700662 | 300 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Sonoma Ridge-Mccall Sound TX1700763 | 294 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Bridgepoint Subdivision TX1700316 | 291 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Wilshire Subdivision TX1700321 | 288 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Loch Ness Cove Subdivision Water System TX1700148 | 267 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 172 TX1700929 | 264 | 0 | 0 | 0 | 15.8 ppbat or above the action level |
| Crystal Springs Subdivision TX1700331 | 255 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Mount Pleasant Village Water System TX1700423 | 255 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Rolling Forest TX1700684 | 252 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Cape Malibu WSC TX1700065 | 250 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Flamingo Lakes Lot Owners Association in TX1700042 | 246 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pine Vista Mobile Home Village TX1700078 | 246 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Settlers Crossing TX1700615 | 240 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Forest Woods Subdivision TX1700106 | 237 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Texas Landing Utilities Deerwood TX1700798 | 234 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Joy Village TX1700021 | 231 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Stonecrest Ranch TX1700611 | 231 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Bee Creek Estates TX1700685 | 228 | 0 | 0 | 0 | 0 ppbbelow the action level |
| North Lake Estates TX1700644 | 225 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Oakwood Acres TX1700216 | 225 | 0 | 0 | 0 | 0.4 ppbbelow the action level |
| Lakewood Trails TX1700897 | 219 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 158 TX1700962 | 219 | 0 | 0 | 0 | 0 ppbbelow the action level |
| East Montgomery County MUD 14 TX1700939 | 213 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 159 TX1700957 | 207 | 0 | 0 | 0 | 56 ppbat or above the action level |
| Del Lago Estates WSC TX1700690 | 201 | 0 | 0 | 0 | 2.0 ppbbelow the action level |
| Lakewood Colony TX1700029 | 195 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Montgomery County MUD 185 TX1700934 | 195 | 0 | 0 | 0 | 0 ppbbelow the action level |
| William Trails TX1700966 | 186 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Allendale Water System TX1700187 | 180 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lake Conroe West TX1700041 | 180 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Texas Landing Utilities Goode City TX1700744 | 168 | 0 | 0 | 0 | 0.3 ppbbelow the action level |
| Montgomery County MUD 197 TX1700935 | 165 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Woodhaven Estates TX1700481 | 165 | 0 | 0 | 0 | 3.5 ppbbelow the action level |
| Oak Woods Water System TX1700454 | 162 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Is Zen Center Lotus Lake TX1700755 | 160 | 0 | 0 | 0 | 2.5 ppbbelow the action level |
| Millers Crossing TX1700675 | 159 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| New Danville Community TX1700803 | 159 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Caney Creek Utility TX1700328 | 153 | 0 | 0 | 0 | 2.0 ppbbelow the action level |
| Hillgreen Subdivision Water Co TX1700539 | 138 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Ranch Hill TX1700889 | 129 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lake Lorraine Ws TX1700154 | 126 | 0 | 0 | 0 | 0.9 ppbbelow the action level |
| Stillwater Estates TX1700677 | 120 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Timber Switch Water Plant TX1700766 | 105 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Yesterdays Crossing TX1700758 | 105 | 0 | 0 | 0 | 0.3 ppbbelow the action level |
| Enchanted Cove Water System TX1700617 | 96 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Sweetgum Forest TX1700113 | 87 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Enchanted Forest TX1700040 | 72 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Airport Heights TX1700006 | 60 | 0 | 0 | 0 | 0.2 ppbbelow the action level |
| Laird Estates TX1700015 | 60 | 0 | 0 | 0 | 1.6 ppbbelow the action level |
| Lake Conroe Terrace Water System TX1700845 | 57 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Falls of Wildwood TX1700673 | 54 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Lakeview Pointe Apartments TX1700414 | 44 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Big Oaks Ranchette Subdivision TX1700639 | 42 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pine Knob Subdivision TX1700652 | 39 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Sjra Grp Sw Treatment Plant TX1700822 | 25 | 0 | 0 | 0 | 0 ppbbelow the action level |
| White Rock TX1700931 | 25 | 0 | 0 | 0 | 0 ppbbelow the action level |
| The Highlands TX1700909 | 0 | 0 | 0 | 1 | not reported |
| Montgomery County MUD 138 TX1700988 | 2,712 | 0 | 0 | 0 | not reported |
| Rose Hill Estates Subdivision TX1700911 | 177 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 201 TX1700989 | 136 | 0 | 0 | 0 | not reported |
| Colton MUD 2 TX1701005 | 54 | 0 | 0 | 0 | not reported |
| Cielo Subdivision TX1700971 | 51 | 0 | 0 | 0 | not reported |
| Audubon MUD 2 TX1700969 | 45 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 209 TX1700945 | 45 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 212 TX1700967 | 45 | 0 | 0 | 0 | not reported |
| Perenfra Tx TX1701007 | 45 | 0 | 0 | 0 | not reported |
| Calvary Utility TX1701027 | 0 | 0 | 0 | 0 | not reported |
| Colton MUD 1 TX1700976 | 0 | 0 | 0 | 0 | not reported |
| East Montgomery County MUD 5 TX1700829 | 0 | 0 | 0 | 0 | not reported |
| Emory Glen Water System TX1700936 | 0 | 0 | 0 | 0 | not reported |
| Mavera Regional Water Plant TX1700921 | 0 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 152c TX1701015 | 0 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 157 TX1700937 | 0 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 163 TX1700943 | 0 | 0 | 0 | 0 | not reported |
| Montgomery County MUD 170 TX1700950 | 0 | 0 | 0 | 0 | not reported |
| Sjra the Woodlands TX1700197 | 0 | 0 | 0 | 0 | not reported |
Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. 2 systems in this table are at or above it. What an action level means
USGS · Monitoring stations
The water, more recently.
Available station readings in Montgomery County, Texas. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Montgomery County
22ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Conroe
- Grangerland
- Houston
- Montgomery
- Pinehurst
- Porter Heights
- Richards
- Roman Forest
- Splendora
- Stagecoach
- The Woodlands
- Willis
View ZIP areas and understand coverage
- 77301Conroe
- 77302Conroe
- 77303Conroe
- 77304Conroe
- 77306Grangerland
- 77316Conroe
- 77318Conroe
- 77354Pinehurst
- 77355Stagecoach
- 77356Montgomery
- 77357Roman Forest
- 77362Pinehurst
- 77365Porter Heights
- 77372Splendora
- 77378Willis
- 77380The Woodlands
- 77381The Woodlands
- 77382The Woodlands
- 77384Conroe
- 77385The Woodlands
- 77386Houston
- 77873Richards
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.
