All 954 systems had enough required samples to calculate a yearly average. 25 had at least one yearly average at or above a study benchmark; 929 did not.
EPA-based study benchmark: the unrounded cutoff this research uses to reproduce EPA’s January 2026 technical-assistance classification around the April 2024 federal levels. It is not a current standard or compliance finding and cannot determine household exposure or health risk.
Find your water system
ZIP codes are used only to route visitors to public water systems that reported serving them. Confirm the actual provider using a water bill or utility record.
System counts in Texas
Each count shows how many included water systems had a yearly average at or above the named study benchmark.
| Study benchmark | Systems at or above benchmark | Water systems included | Percent |
|---|---|---|---|
| PFOA: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt) | 5 | 954 | 0.5% |
| PFOS: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt) | 24 | 954 | 2.5% |
| PFHxS: 15 ppt study benchmark (reproduces EPA classification around 10 ppt) | 6 | 954 | 0.6% |
| PFNA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt) | 2 | 954 | 0.2% |
| HFPO-DA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt) | 0 | 954 | 0.0% |
| Hazard Index: 1.5 study benchmark with at least two detected components (reproduces EPA classification around 1) | 8 | 954 | 0.8% |
Community water systems with complete monitoring
“Complete monitoring” means at least one sampling location had all required samples needed for a yearly average. Each PWSID appears once, preventing double counting across ZIP associations.
| Public water system | PWSID | Population served | Primary source | Sampling locations | Study benchmark result |
|---|---|---|---|---|---|
| 439 WSC | TX0140076 | 7,836 | Surface water purchased | 3 | Below all study benchmarks |
| ACTON MUD | TX1110007 | 20,458 | Surface water | 20 | Below all study benchmarks |
| ADDICKS UTILITY DISTRICT | TX1011019 | 8,076 | Surface water purchased | 2 | Below all study benchmarks |
| AGUA SUD | TX1080022 | 53,796 | Surface water | 2 | Below all study benchmarks |
| AIRLINE MOBILE HOME PARK | TX1650003 | 1,973 | Ground water | 4 | Below all study benchmarks |
| ALTO RURAL WSC CENTRAL HIGH PLANT | TX0370055 | 1,305 | Ground water | 1 | Below all study benchmarks |
| AMARILLO MUNICIPAL WATER SYSTEM | TX1880001 | 201,291 | Surface water | 6 | Below all study benchmarks |
| ANGELINA WSC | TX0030016 | 3,479 | Ground water | 3 | Below all study benchmarks |
| AQUA WSC | TX0110013 | 86,325 | Ground water | 14 | Below all study benchmarks |
| ARGYLE WSC | TX0610019 | 12,720 | Surface water purchased | 6 | Below all study benchmarks |
| ARLAM CONCORD WSC | TX2010004 | 990 | Ground water | 2 | Below all study benchmarks |
| ATASCOSA RURAL WSC | TX0150040 | 13,857 | Surface water purchased | 3 | Below all study benchmarks |
| AUSTIN COUNTY WSC 4 | TX0080043 | 681 | Ground water | 1 | Below all study benchmarks |
| B H P WSC | TX1160015 | 6,321 | Surface water purchased | 1 | Below all study benchmarks |
| BARKER CYPRESS MUD | TX1011613 | 8,976 | Surface water purchased | 2 | Below all study benchmarks |
| BASTROP COUNTY WCID 2 | TX0110020 | 7,269 | Ground water | 3 | Below all study benchmarks |
| BEAR CREEK SUD | TX0430037 | 15,822 | Surface water purchased | 2 | Below all study benchmarks |
| BELL COUNTY WCID 3 | TX0140031 | 7,836 | Surface water purchased | 2 | Below all study benchmarks |
| BENBROOK WATER AUTHORITY | TX2200029 | 25,616 | Surface water | 9 | Below all study benchmarks |
| BENDERS LANDING WATER PLANT 1 & 2 | TX1700678 | 5,892 | Ground water | 3 | Below all study benchmarks |
| BENTON CITY WSC | TX1630034 | 32,000 | Ground water | 4 | Below all study benchmarks |
| BENTWATER ON LAKE GRANBURY | TX1110116 | 1,584 | Ground water | 1 | Below all study benchmarks |
| BETHANY SUD | TX1260016 | 4,503 | Surface water purchased | 6 | Below all study benchmarks |
| BETHEL ASH WSC LOWE PLANT | TX1070240 | 786 | Ground water | 1 | Below all study benchmarks |
| BETHESDA WSC | TX1260017 | 33,441 | Surface water purchased | 10 | Below all study benchmarks |
| BEXAR COUNTY WCID 10 WINDCREST | TX0150106 | 8,154 | Ground water | 4 | Below all study benchmarks |
| BI COUNTY WSC 1 | TX0320002 | 12,777 | Ground water | 12 | Below all study benchmarks |
| BIG OAKS MUD | TX0790332 | 6,450 | Surface water purchased | 1 | Below all study benchmarks |
| BILMA PUD | TX1011872 | 5,397 | Surface water purchased | 2 | Below all study benchmarks |
| BISSONNET MUD | TX1010883 | 8,160 | Ground water | 2 | Below all study benchmarks |
| BLACKLAND WSC | TX1990004 | 6,171 | Surface water purchased | 2 | Below all study benchmarks |
| BLUE RIDGE WEST MUD | TX0790051 | 7,545 | Ground water | 2 | Below all study benchmarks |
| BOIS D ARC MUD | TX0740044 | 3,011 | Ground water | 3 | Below all study benchmarks |
| BOLIVAR PENINSULA SUD | TX0840044 | 18,424 | Surface water purchased | 1 | Below all study benchmarks |
| BORGER MUNICIPAL WATER SYSTEM | TX1170001 | 12,419 | Surface water | 4 | Below all study benchmarks |
| BRAZORIA COUNTY MUD 2 | TX0200386 | 3,567 | Ground water | 4 | Below all study benchmarks |
| BRAZORIA COUNTY MUD 21 | TX0200610 | 4,833 | Ground water | 1 | Below all study benchmarks |
| BRAZORIA COUNTY MUD 25 | TX0200615 | 5,250 | Ground water | 2 | Below all study benchmarks |
| BRAZORIA COUNTY MUD 29 | TX0200612 | 5,898 | Ground water | 1 | Below all study benchmarks |
| BRAZORIA COUNTY MUD 3 | TX0200560 | 4,230 | Ground water purchased | 1 | Below all study benchmarks |
| BRAZORIA COUNTY MUD 6 | TX0200578 | 6,926 | Ground water purchased | 1 | Below all study benchmarks |
| BRIDGESTONE MUD | TX1011550 | 24,528 | Surface water purchased | 3 | Below all study benchmarks |
| BRIGHT STAR-SALEM SUD | TX2500015 | 6,738 | Surface water | 5 | Below all study benchmarks |
| BRITTMOORE UTILITY | TX1011014 | 3,732 | Ground water | 2 | Below all study benchmarks |
| BROWNSVILLE PUBLIC UTILITIES BOARD | TX0310001 | 201,249 | Surface water | 2 | At or above a study benchmark |
| BRUSHY CREEK MUD | TX2460061 | 18,314 | Surface water | 1 | Below all study benchmarks |
| BRUSHY CREEK WSC | TX0010036 | 4,866 | Ground water | 5 | Below all study benchmarks |
| BUENA VISTA BETHEL SUD | TX0700037 | 8,218 | Ground water | 5 | Below all study benchmarks |
| CADDO BASIN SUD | TX1160029 | 14,574 | Surface water purchased | 2 | Below all study benchmarks |
| CANYON MUNICIPAL WATER SYSTEM | TX1910001 | 15,771 | Surface water purchased | 4 | Below all study benchmarks |
| CANYON PARK WSC | TX1870034 | 1,200 | Ground water | 1 | Below all study benchmarks |
| CANYON SPRINGS WATER | TX0460022 | 1,528 | Ground water | 3 | Below all study benchmarks |
| CAROLYNN ESTATES | TX1070106 | 3,906 | Surface water | 1 | Below all study benchmarks |
| CARRIAGE HILLS | TX1700279 | 1,833 | Ground water | 2 | Below all study benchmarks |
| CASH SUD | TX1160018 | 25,875 | Surface water | 2 | At or above a study benchmark |
| CEDAR CREEK WATER SYSTEM | TX1090012 | 3,720 | Ground water | 4 | Below all study benchmarks |
| CENTRAL BOWIE COUNTY WSC | TX0190024 | 9,210 | Surface water purchased | 3 | Below all study benchmarks |
| CENTRAL WCID OF ANGELINA COUNTY | TX0030019 | 7,381 | Ground water | 2 | Below all study benchmarks |
| CHALK BLUFF WSC | TX1550020 | 3,852 | Ground water | 3 | Below all study benchmarks |
| CHALK HILL SUD | TX2010050 | 4,830 | Ground water | 4 | Below all study benchmarks |
| CHAMPIONS MUD | TX1010233 | 4,098 | Ground water | 1 | Below all study benchmarks |
| CHARTERWOOD MUD | TX1010632 | 5,832 | Ground water | 2 | Below all study benchmarks |
| CHATFIELD WSC | TX1750012 | 6,546 | Surface water purchased | 1 | Below all study benchmarks |
| CHELFORD CITY MUD | TX1010782 | 8,917 | Ground water | 4 | Below all study benchmarks |
| CHELFORD ONE MUD | TX1010767 | 4,557 | Ground water | 1 | Below all study benchmarks |
| CIMARRON MUD | TX1011410 | 19,338 | Ground water | 3 | Below all study benchmarks |
| CINCO MUD 14 | TX0790422 | 6,192 | Ground water purchased | 1 | Below all study benchmarks |
| CINCO MUD 2 | TX0790306 | 4,743 | Ground water purchased | 1 | Below all study benchmarks |
| CINCO MUD 7 | TX0790343 | 4,239 | Ground water purchased | 1 | Below all study benchmarks |
| CINCO MUD 8 | TX0790324 | 5,613 | Ground water purchased | 1 | Below all study benchmarks |
| CINCO MUD 9 | TX0790307 | 3,828 | Ground water purchased | 1 | Below all study benchmarks |
| CINCO SOUTHWEST MUD 2 | TX0790481 | 5,496 | Surface water purchased | 1 | Below all study benchmarks |
| CINCO SOUTHWEST MUD 3 DAYCARE | TX0790521 | 5,187 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF ABILENE | TX2210001 | 130,501 | Surface water | 3 | At or above a study benchmark |
| CITY OF ALAMO | TX1080001 | 21,065 | Surface water | 1 | Below all study benchmarks |
| CITY OF ALAMO HEIGHTS | TX0150039 | 7,357 | Ground water | 6 | Below all study benchmarks |
| CITY OF ALEDO | TX1840001 | 5,521 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF ALICE | TX1250001 | 19,104 | Surface water | 1 | Below all study benchmarks |
| CITY OF ALLEN | TX0430025 | 113,746 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF ALVARADO | TX1260001 | 6,614 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF ALVIN | TX0200001 | 26,244 | Ground water | 3 | Below all study benchmarks |
| CITY OF ANDREWS | TX0020001 | 14,109 | Ground water | 1 | Below all study benchmarks |
| CITY OF ANGLETON | TX0200002 | 19,429 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF ANNA | TX0430027 | 23,960 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF ARLINGTON | TX2200001 | 413,955 | Surface water | 2 | Below all study benchmarks |
| CITY OF ATHENS | TX1070005 | 17,934 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF ATLANTA | TX0340001 | 5,418 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF AUSTIN WATER & WASTEWATER | TX2270001 | 1,115,323 | Surface water | 3 | Below all study benchmarks |
| CITY OF AZLE | TX2200002 | 14,847 | Surface water | 1 | Below all study benchmarks |
| CITY OF BALCH SPRINGS | TX0570032 | 28,300 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF BARTLETT | TX2460006 | 2,950 | Ground water | 1 | Below all study benchmarks |
| CITY OF BAY CITY | TX1610001 | 18,061 | Ground water | 5 | Below all study benchmarks |
| CITY OF BAYTOWN | TX1010003 | 86,004 | Surface water purchased | 2 | At or above a study benchmark |
| CITY OF BEAUMONT WATER UTILITY DEPT | TX1230001 | 115,282 | Surface water | 2 | Below all study benchmarks |
| CITY OF BEDFORD | TX2200003 | 49,941 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF BEEVILLE | TX0130001 | 13,664 | Surface water | 2 | Below all study benchmarks |
| CITY OF BELLAIRE | TX1010004 | 18,090 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF BELLMEAD | TX1550001 | 10,664 | Ground water | 5 | Below all study benchmarks |
| CITY OF BELLVILLE | TX0080001 | 4,206 | Ground water | 1 | Below all study benchmarks |
| CITY OF BELTON | TX0140002 | 23,054 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF BIG SPRING | TX1140001 | 27,282 | Surface water | 1 | Below all study benchmarks |
| CITY OF BISHOP | TX1780002 | 3,186 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF BOERNE | TX1300001 | 24,769 | Surface water | 8 | At or above a study benchmark |
| CITY OF BONHAM | TX0740001 | 10,746 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF BOWIE | TX1690001 | 5,534 | Surface water | 1 | Below all study benchmarks |
| CITY OF BRENHAM | TX2390001 | 18,469 | Surface water | 1 | Below all study benchmarks |
| CITY OF BRIDGE CITY | TX1810001 | 9,546 | Ground water | 3 | Below all study benchmarks |
| CITY OF BRIDGEPORT | TX2490003 | 5,930 | Surface water | 1 | Below all study benchmarks |
| CITY OF BROWNFIELD | TX2230001 | 8,652 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF BROWNWOOD | TX0250002 | 18,862 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF BRUCEVILLE EDDY | TX1550024 | 10,570 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF BRYAN | TX0210001 | 91,031 | Ground water | 1 | Below all study benchmarks |
| CITY OF BUDA | TX1050012 | 13,830 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF BULLARD | TX2120006 | 4,500 | Ground water | 4 | Below all study benchmarks |
| CITY OF BURKBURNETT | TX2430005 | 10,978 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF BURLESON | TX1260002 | 53,381 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF BURNET | TX0270001 | 7,011 | Surface water | 2 | Below all study benchmarks |
| CITY OF BURTON | TX2390002 | 315 | Ground water | 1 | Below all study benchmarks |
| CITY OF CACTUS | TX1710003 | 3,000 | Ground water | 3 | Below all study benchmarks |
| CITY OF CALDWELL | TX0260001 | 4,358 | Ground water | 2 | Below all study benchmarks |
| CITY OF CAMERON | TX1660001 | 5,489 | Surface water | 1 | Below all study benchmarks |
| CITY OF CANTON, TX | TX2340001 | 5,028 | Surface water | 2 | Below all study benchmarks |
| CITY OF CARRIZO SPRINGS | TX0640002 | 5,830 | Ground water | 1 | Below all study benchmarks |
| CITY OF CARROLLTON | TX0570034 | 136,170 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF CARTHAGE | TX1830001 | 6,770 | Surface water | 1 | Below all study benchmarks |
| CITY OF CEDAR HILL | TX0570036 | 50,904 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CEDAR PARK | TX2460009 | 86,939 | Surface water | 2 | Below all study benchmarks |
| CITY OF CENTER | TX2100001 | 5,450 | Surface water | 2 | Below all study benchmarks |
| CITY OF CHARLOTTE | TX0070016 | 2,247 | Ground water | 2 | Below all study benchmarks |
| CITY OF CHILDRESS | TX0380001 | 6,105 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CIBOLO | TX0940018 | 20,331 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CLEBURNE | TX1260003 | 34,075 | Surface water | 1 | Below all study benchmarks |
| CITY OF CLEVELAND | TX1460001 | 12,438 | Ground water | 3 | Below all study benchmarks |
| CITY OF CLIFTON | TX0180001 | 3,442 | Surface water | 3 | Below all study benchmarks |
| CITY OF CLUTE | TX0200004 | 10,604 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF COCKRELL HILL | TX0570038 | 3,855 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF COLEMAN | TX0420001 | 3,998 | Surface water | 1 | Below all study benchmarks |
| CITY OF COLLEGE STATION | TX0210002 | 104,103 | Ground water | 1 | Below all study benchmarks |
| CITY OF COLLEYVILLE | TX2200043 | 26,599 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF COLORADO CITY | TX1680001 | 3,991 | Ground water | 1 | Below all study benchmarks |
| CITY OF COLUMBUS | TX0450001 | 3,739 | Ground water | 3 | Below all study benchmarks |
| CITY OF COMMERCE | TX1160003 | 9,266 | Surface water | 2 | Below all study benchmarks |
| CITY OF CONROE | TX1700001 | 113,912 | Surface water purchased | 16 | Below all study benchmarks |
| CITY OF CONVERSE | TX0150047 | 29,709 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF COPPELL | TX0570040 | 43,193 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF COPPERAS COVE | TX0500001 | 41,669 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CORINTH, TX | TX0610065 | 23,213 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CORPUS CHRISTI | TX1780003 | 318,387 | Surface water | 1 | Below all study benchmarks |
| CITY OF CORSICANA | TX1750002 | 25,885 | Surface water | 2 | Below all study benchmarks |
| CITY OF COTULLA | TX1420001 | 5,640 | Ground water | 4 | Below all study benchmarks |
| CITY OF CROCKETT | TX1130001 | 7,755 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CROWLEY | TX2200034 | 19,935 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF CRYSTAL CITY | TX2540001 | 7,128 | Ground water | 4 | Below all study benchmarks |
| CITY OF CUERO | TX0620001 | 9,807 | Ground water | 3 | Below all study benchmarks |
| CITY OF CUMBY | TX1120001 | 685 | Ground water | 1 | Below all study benchmarks |
| CITY OF DAINGERFIELD | TX1720001 | 2,522 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF DAYTON | TX1460002 | 15,393 | Ground water | 2 | Below all study benchmarks |
| CITY OF DECATUR | TX2490005 | 6,910 | Surface water | 1 | Below all study benchmarks |
| CITY OF DEER PARK | TX1010007 | 34,495 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF DENISON | TX0910003 | 27,500 | Surface water | 1 | Below all study benchmarks |
| CITY OF DENTON | TX0610002 | 150,037 | Surface water | 2 | Below all study benchmarks |
| CITY OF DENVER CITY | TX2510001 | 5,500 | Ground water | 1 | Below all study benchmarks |
| CITY OF DESOTO | TX0570006 | 57,999 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF DEVINE | TX1630006 | 4,335 | Ground water | 3 | Below all study benchmarks |
| CITY OF DIBOLL | TX0030001 | 5,207 | Ground water | 3 | Below all study benchmarks |
| CITY OF DILLEY | TX0820001 | 4,505 | Ground water | 2 | Below all study benchmarks |
| CITY OF DONNA | TX1080002 | 18,720 | Surface water | 1 | Below all study benchmarks |
| CITY OF DUBLIN | TX0720001 | 3,388 | Surface water purchased | 1 | At or above a study benchmark |
| CITY OF DUMAS | TX1710001 | 14,290 | Ground water | 1 | Below all study benchmarks |
| CITY OF DUNCANVILLE | TX0570007 | 39,413 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF EAGLE PASS | TX1620001 | 54,900 | Surface water | 1 | Below all study benchmarks |
| CITY OF EASTLAND | TX0670002 | 3,609 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF EDINBURG | TX1080004 | 85,224 | Surface water | 2 | Below all study benchmarks |
| CITY OF EDNA | TX1200001 | 5,987 | Ground water | 2 | Below all study benchmarks |
| CITY OF EL CAMPO | TX2410002 | 12,095 | Ground water | 4 | Below all study benchmarks |
| CITY OF ELGIN | TX0110002 | 13,188 | Ground water | 1 | Below all study benchmarks |
| CITY OF ELMENDORF | TX0150048 | 4,221 | Ground water | 2 | Below all study benchmarks |
| CITY OF ELSA | TX1080005 | 5,500 | Surface water | 1 | Below all study benchmarks |
| CITY OF EMORY | TX1900001 | 3,762 | Surface water | 1 | Below all study benchmarks |
| CITY OF ENNIS | TX0700001 | 24,891 | Surface water | 1 | Below all study benchmarks |
| CITY OF EULESS | TX2200031 | 61,601 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF EVERMAN | TX2200010 | 6,279 | Ground water | 4 | Below all study benchmarks |
| CITY OF FAIRFIELD | TX0810001 | 3,005 | Ground water | 2 | Below all study benchmarks |
| CITY OF FARMERS BRANCH | TX0570047 | 40,246 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF FARMERSVILLE | TX0430004 | 5,312 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF FATE | TX1990006 | 29,285 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF FLORESVILLE | TX2470001 | 8,306 | Ground water | 3 | Below all study benchmarks |
| CITY OF FOREST HILL | TX2200011 | 13,701 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF FORNEY | TX1290002 | 29,692 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF FORT STOCKTON | TX1860001 | 8,142 | Ground water | 2 | Below all study benchmarks |
| CITY OF FORT WORTH | TX2200012 | 955,900 | Surface water | 5 | At or above a study benchmark |
| CITY OF FREDERICKSBURG | TX0860001 | 11,257 | Ground water | 2 | Below all study benchmarks |
| CITY OF FREEPORT | TX0200005 | 10,594 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF FRIENDSWOOD | TX0840002 | 43,190 | Surface water purchased | 8 | Below all study benchmarks |
| CITY OF FRISCO | TX0430005 | 231,910 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF FULSHEAR | TX0790133 | 34,000 | Ground water | 4 | Below all study benchmarks |
| CITY OF GAINESVILLE | TX0490001 | 18,107 | Surface water | 6 | Below all study benchmarks |
| CITY OF GALENA PARK | TX1010009 | 10,487 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF GALVESTON | TX0840003 | 52,326 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF GARDEN RIDGE | TX0460027 | 5,100 | Ground water | 3 | Below all study benchmarks |
| CITY OF GARLAND | TX0570010 | 248,822 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF GATESVILLE | TX0500002 | 16,135 | Surface water | 1 | Below all study benchmarks |
| CITY OF GEORGETOWN | TX2460001 | 191,639 | Surface water | 6 | Below all study benchmarks |
| CITY OF GIDDINGS | TX1440001 | 7,878 | Ground water | 2 | Below all study benchmarks |
| CITY OF GILMER | TX2300002 | 8,115 | Ground water | 3 | Below all study benchmarks |
| CITY OF GLADEWATER | TX0920001 | 6,441 | Surface water | 1 | Below all study benchmarks |
| CITY OF GLENN HEIGHTS | TX0570085 | 18,718 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF GONZALES | TX0890001 | 9,172 | Surface water | 2 | Below all study benchmarks |
| CITY OF GRAHAM | TX2520001 | 8,718 | Surface water | 1 | Below all study benchmarks |
| CITY OF GRANBURY | TX1110001 | 11,468 | Surface water | 9 | Below all study benchmarks |
| CITY OF GRAND PRAIRIE | TX0570048 | 201,843 | Surface water purchased | 5 | At or above a study benchmark |
| CITY OF GRANITE SHOALS | TX0270049 | 6,795 | Surface water | 1 | Below all study benchmarks |
| CITY OF GRAPEVINE | TX2200013 | 52,346 | Surface water | 2 | Below all study benchmarks |
| CITY OF GREENVILLE, TX | TX1160004 | 33,354 | Surface water | 1 | At or above a study benchmark |
| CITY OF GROESBECK | TX1470002 | 4,250 | Surface water | 1 | Below all study benchmarks |
| CITY OF GROVES | TX1230012 | 17,335 | Surface water | 1 | Below all study benchmarks |
| CITY OF HACKBERRY | TX0610091 | 2,979 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF HALLSVILLE | TX1020004 | 5,580 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF HALTOM CITY | TX2200014 | 46,260 | Surface water purchased | 2 | At or above a study benchmark |
| CITY OF HARKER HEIGHTS | TX0140023 | 35,957 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF HEARNE | TX1980004 | 4,959 | Ground water | 4 | Below all study benchmarks |
| CITY OF HEATH | TX1990014 | 10,464 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF HEMPSTEAD | TX2370001 | 7,158 | Ground water | 2 | Below all study benchmarks |
| CITY OF HENDERSON | TX2010001 | 14,666 | Surface water | 8 | Below all study benchmarks |
| CITY OF HEWITT | TX1550031 | 16,978 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF HIDALGO | TX1080021 | 14,800 | Ground water | 2 | Below all study benchmarks |
| CITY OF HIGHLAND VILLAGE | TX0610080 | 16,500 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF HILLSBORO | TX1090001 | 8,867 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF HONDO | TX1630002 | 11,044 | Ground water | 3 | Below all study benchmarks |
| CITY OF HORSESHOE BAY | TX1500015 | 12,729 | Surface water | 2 | Below all study benchmarks |
| CITY OF HOUSTON DISTRICT 73 | TX1011585 | 6,105 | Ground water | 2 | Below all study benchmarks |
| CITY OF HOUSTON DISTRICT 82 | TX1011593 | 1,104 | Ground water | 1 | Below all study benchmarks |
| CITY OF HOUSTON UD 5 - KINGWOOD | TX1010348 | 80,073 | Ground water | 6 | Below all study benchmarks |
| CITY OF HOUSTON WILLOW CHASE | TX1011902 | 14,169 | Ground water | 4 | Below all study benchmarks |
| CITY OF HOUSTON, TX | TX1010013 | 2,970,543 | Surface water | 39 | Below all study benchmarks |
| CITY OF HUDSON OAKS | TX1840006 | 3,487 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF HUMBLE | TX1010014 | 15,616 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF HUNTSVILLE | TX2360001 | 48,522 | Surface water purchased | 4 | At or above a study benchmark |
| CITY OF HURST | TX2200054 | 40,454 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF HUTCHINS | TX0570012 | 5,902 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF HUTTO | TX2460007 | 29,580 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF INGLESIDE | TX2050002 | 10,106 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF IRVING | TX0570050 | 264,546 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF JACINTO CITY | TX1010015 | 9,613 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF JACKSBORO | TX1190002 | 4,397 | Surface water | 1 | Below all study benchmarks |
| CITY OF JACKSONVILLE | TX0370002 | 14,420 | Surface water | 6 | Below all study benchmarks |
| CITY OF JASPER | TX1210001 | 9,884 | Ground water | 4 | Below all study benchmarks |
| CITY OF JERSEY VILLAGE | TX1010016 | 7,792 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF JOSEPHINE | TX0430036 | 9,800 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF JUSTIN | TX0610003 | 7,537 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF KARNES CITY | TX1280001 | 4,269 | Ground water | 1 | Below all study benchmarks |
| CITY OF KATY | TX1010017 | 25,253 | Ground water | 6 | Below all study benchmarks |
| CITY OF KEENE | TX1260008 | 6,863 | Surface water purchased | 7 | Below all study benchmarks |
| CITY OF KELLER | TX2200096 | 46,308 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF KENNEDALE | TX2200017 | 7,670 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF KERMIT | TX2480001 | 5,708 | Ground water | 2 | Below all study benchmarks |
| CITY OF KERRVILLE | TX1330001 | 23,489 | Surface water | 9 | Below all study benchmarks |
| CITY OF KILGORE | TX0920003 | 14,948 | Surface water | 2 | Below all study benchmarks |
| CITY OF KILLEEN | TX0140006 | 161,027 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF KINGSVILLE | TX1370001 | 25,402 | Surface water purchased | 8 | Below all study benchmarks |
| CITY OF KIRBY | TX0150010 | 8,142 | Ground water | 2 | Below all study benchmarks |
| CITY OF KRUM | TX0610007 | 6,062 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF KYLE | TX1050002 | 52,000 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF LA FERIA | TX0310003 | 7,226 | Surface water | 1 | Below all study benchmarks |
| CITY OF LA GRANGE | TX0750003 | 4,973 | Ground water | 4 | Below all study benchmarks |
| CITY OF LA MARQUE | TX0840006 | 15,154 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF LA PORTE | TX1010018 | 36,569 | Surface water purchased | 7 | Below all study benchmarks |
| CITY OF LACY LAKEVIEW | TX1550033 | 7,275 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF LAGO VISTA | TX2270092 | 8,698 | Surface water | 2 | Below all study benchmarks |
| CITY OF LAKE JACKSON | TX0200006 | 27,314 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF LAKE WORTH | TX2200060 | 4,720 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF LAMESA | TX0580001 | 9,442 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF LANCASTER, TX | TX0570013 | 40,449 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF LAREDO | TX2400001 | 260,046 | Surface water | 2 | Below all study benchmarks |
| CITY OF LEAGUE CITY | TX0840007 | 149,557 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF LEANDER | TX2460012 | 98,330 | Surface water | 2 | Below all study benchmarks |
| CITY OF LEON VALLEY | TX0150178 | 7,794 | Ground water | 2 | Below all study benchmarks |
| CITY OF LEVELLAND | TX1100002 | 12,652 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF LEWISVILLE | TX0610004 | 140,880 | Surface water | 3 | Below all study benchmarks |
| CITY OF LIBERTY | TX1460003 | 8,170 | Ground water | 2 | Below all study benchmarks |
| CITY OF LINDALE | TX2120002 | 6,313 | Ground water | 7 | Below all study benchmarks |
| CITY OF LITTLEFIELD | TX1400003 | 5,943 | Ground water | 1 | Below all study benchmarks |
| CITY OF LIVE OAK | TX0150068 | 8,724 | Ground water | 4 | Below all study benchmarks |
| CITY OF LIVINGSTON, TX | TX1870002 | 15,199 | Surface water purchased | 1 | At or above a study benchmark |
| CITY OF LLANO | TX1500001 | 3,352 | Surface water | 1 | Below all study benchmarks |
| CITY OF LOCKHART | TX0280001 | 18,800 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF LONGVIEW | TX0920004 | 83,236 | Surface water | 3 | Below all study benchmarks |
| CITY OF LOS FRESNOS | TX0310004 | 6,009 | Surface water | 1 | Below all study benchmarks |
| CITY OF LUCAS | TX0430054 | 8,378 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF LUFKIN | TX0030004 | 51,236 | Ground water | 2 | Below all study benchmarks |
| CITY OF LULING | TX0280002 | 7,364 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF MABANK | TX1290005 | 15,207 | Surface water | 1 | Below all study benchmarks |
| CITY OF MADISONVILLE | TX1570001 | 6,111 | Ground water | 3 | Below all study benchmarks |
| CITY OF MANOR | TX2270002 | 19,620 | Ground water | 6 | Below all study benchmarks |
| CITY OF MANSFIELD | TX2200018 | 89,227 | Surface water | 1 | Below all study benchmarks |
| CITY OF MATHIS | TX2050003 | 5,001 | Surface water | 1 | Below all study benchmarks |
| CITY OF MCGREGOR | TX1550004 | 6,037 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF MCKINNEY | TX0430039 | 224,043 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF MEADOWS PLACE | TX0790025 | 5,000 | Ground water | 3 | Below all study benchmarks |
| CITY OF MELISSA | TX0430040 | 26,234 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF MERCEDES | TX1080007 | 16,258 | Surface water | 1 | Below all study benchmarks |
| CITY OF MESQUITE | TX0570014 | 152,020 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF MIDLAND WATER PURIFICATION PLANT | TX1650001 | 157,000 | Surface water | 2 | Below all study benchmarks |
| CITY OF MIDLOTHIAN | TX0700005 | 27,699 | Surface water | 2 | Below all study benchmarks |
| CITY OF MINEOLA | TX2500002 | 4,515 | Ground water | 4 | Below all study benchmarks |
| CITY OF MINERAL WELLS | TX1820001 | 15,564 | Surface water | 1 | Below all study benchmarks |
| CITY OF MISSION | TX1080008 | 77,058 | Surface water | 2 | Below all study benchmarks |
| CITY OF MONAHANS | TX2380001 | 6,953 | Ground water | 1 | Below all study benchmarks |
| CITY OF MORGANS POINT RESORT | TX0140116 | 5,000 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF MOUNT PLEASANT | TX2250001 | 16,238 | Surface water | 1 | Below all study benchmarks |
| CITY OF MURPHY | TX0430042 | 21,082 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF NACOGDOCHES | TX1740003 | 50,226 | Surface water | 2 | Below all study benchmarks |
| CITY OF NASH | TX0190006 | 3,818 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF NASSAU BAY | TX1010152 | 5,347 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF NAVASOTA | TX0930001 | 8,068 | Ground water | 1 | Below all study benchmarks |
| CITY OF NEEDVILLE | TX0790001 | 3,089 | Ground water | 3 | Below all study benchmarks |
| CITY OF NEW BOSTON | TX0190003 | 6,880 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF NORTH RICHLAND HILLS | TX2200063 | 74,859 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF OAK RIDGE NORTH | TX1700025 | 3,585 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF ODESSA | TX0680002 | 123,334 | Surface water | 1 | Below all study benchmarks |
| CITY OF ORANGE, TX | TX1810004 | 19,300 | Ground water | 3 | Below all study benchmarks |
| CITY OF OVILLA | TX0700067 | 4,532 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF PALESTINE | TX0010001 | 31,272 | Surface water | 1 | Below all study benchmarks |
| CITY OF PAMPA | TX0900003 | 17,994 | Surface water | 4 | Below all study benchmarks |
| CITY OF PARIS | TX1390002 | 25,498 | Surface water | 1 | Below all study benchmarks |
| CITY OF PARKER | TX0430045 | 6,486 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF PASADENA | TX1010293 | 152,000 | Surface water purchased | 9 | Below all study benchmarks |
| CITY OF PEARLAND | TX0200008 | 125,828 | Surface water | 13 | Below all study benchmarks |
| CITY OF PEARLAND MUD 1 | TX0200411 | 5,947 | Ground water purchased | 1 | Below all study benchmarks |
| CITY OF PEARSALL | TX0820002 | 8,985 | Ground water | 4 | Below all study benchmarks |
| CITY OF PECOS | TX1950001 | 12,916 | Ground water | 1 | Below all study benchmarks |
| CITY OF PFLUGERVILLE | TX2270014 | 63,464 | Surface water | 3 | At or above a study benchmark |
| CITY OF PHARR | TX1080009 | 79,715 | Surface water | 1 | Below all study benchmarks |
| CITY OF PILOT POINT | TX0610005 | 7,836 | Ground water | 7 | Below all study benchmarks |
| CITY OF PITTSBURG | TX0320001 | 4,335 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF PLANO | TX0430007 | 292,059 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF PLEASANTON, TX | TX0070003 | 17,985 | Ground water | 6 | Below all study benchmarks |
| CITY OF PORT LAVACA | TX0290002 | 12,000 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF PORT NECHES | TX1230010 | 17,043 | Surface water | 1 | Below all study benchmarks |
| CITY OF PORTLAND | TX2050005 | 22,933 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF POST | TX0850001 | 5,471 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF POTEET | TX0070005 | 3,396 | Ground water | 3 | Below all study benchmarks |
| CITY OF PRESIDIO | TX1890002 | 5,514 | Ground water | 1 | Below all study benchmarks |
| CITY OF PRIMERA | TX0310094 | 5,811 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF RAYMONDVILLE | TX2450001 | 11,288 | Surface water | 1 | Below all study benchmarks |
| CITY OF RED OAK | TX0700031 | 18,577 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF RICHARDSON | TX0570015 | 122,615 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF RICHLAND HILLS | TX2200022 | 8,521 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF RICHMOND | TX0790023 | 25,326 | Surface water | 6 | Below all study benchmarks |
| CITY OF RICHWOOD | TX0200035 | 7,605 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF RIO GRANDE CITY | TX2140018 | 18,912 | Surface water | 1 | Below all study benchmarks |
| CITY OF ROANOKE | TX0610008 | 10,127 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF ROBINSON | TX1550010 | 11,900 | Surface water | 6 | Below all study benchmarks |
| CITY OF ROCKDALE | TX1660002 | 5,460 | Ground water | 2 | Below all study benchmarks |
| CITY OF ROCKPORT | TX0040002 | 11,186 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF ROMA | TX2140007 | 19,464 | Surface water | 1 | Below all study benchmarks |
| CITY OF ROSENBERG | TX0790003 | 43,158 | Surface water purchased | 6 | Below all study benchmarks |
| CITY OF ROUND ROCK | TX2460003 | 130,662 | Surface water | 3 | Below all study benchmarks |
| CITY OF ROYSE CITY | TX1990002 | 24,313 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF RUSK | TX0370003 | 5,602 | Ground water | 5 | Below all study benchmarks |
| CITY OF SACHSE | TX0570057 | 30,630 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF SAGINAW | TX2200023 | 23,890 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF SAINT JO | TX1690006 | 881 | Ground water | 3 | Below all study benchmarks |
| CITY OF SAN ANGELO | TX2260001 | 105,229 | Surface water | 1 | Below all study benchmarks |
| CITY OF SAN BENITO | TX0310007 | 24,250 | Surface water | 2 | Below all study benchmarks |
| CITY OF SAN JUAN | TX1080010 | 30,000 | Surface water | 2 | Below all study benchmarks |
| CITY OF SAN MARCOS | TX1050001 | 72,970 | Surface water | 7 | Below all study benchmarks |
| CITY OF SANGER | TX0610006 | 10,166 | Surface water purchased | 7 | Below all study benchmarks |
| CITY OF SANSOM PARK | TX2200071 | 5,359 | Ground water | 7 | Below all study benchmarks |
| CITY OF SCHERTZ | TX0940003 | 41,948 | Ground water | 3 | Below all study benchmarks |
| CITY OF SEABROOK | TX1010062 | 13,560 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF SEAGOVILLE | TX0570016 | 20,156 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF SEALY | TX0080002 | 6,839 | Ground water | 3 | Below all study benchmarks |
| CITY OF SEGUIN | TX0940002 | 32,736 | Surface water | 2 | Below all study benchmarks |
| CITY OF SELMA | TX0150492 | 11,418 | Ground water | 3 | Below all study benchmarks |
| CITY OF SEMINOLE | TX0830012 | 7,386 | Ground water | 3 | Below all study benchmarks |
| CITY OF SHERMAN | TX0910006 | 43,645 | Surface water | 10 | Below all study benchmarks |
| CITY OF SILSBEE | TX1000002 | 10,026 | Ground water | 3 | Below all study benchmarks |
| CITY OF SLATON | TX1520004 | 5,858 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF SNYDER | TX2080001 | 11,104 | Surface water | 1 | Below all study benchmarks |
| CITY OF SOUTH HOUSTON | TX1010294 | 17,397 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF SOUTHLAKE | TX2200075 | 31,576 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF SPLENDORA | TX1700087 | 9,612 | Ground water | 3 | Below all study benchmarks |
| CITY OF SPRING VALLEY VILLAGE | TX1010214 | 4,229 | Ground water | 1 | Below all study benchmarks |
| CITY OF SPRINGTOWN | TX1840003 | 3,781 | Surface water | 2 | Below all study benchmarks |
| CITY OF STEPHENVILLE | TX0720002 | 23,110 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF SUGAR LAND | TX0790005 | 90,909 | Surface water | 7 | Below all study benchmarks |
| CITY OF SUGAR LAND - GREATWOOD | TX0790296 | 12,368 | Ground water | 2 | Below all study benchmarks |
| CITY OF SUGAR LAND - NEW TERRITORY | TX0790253 | 15,546 | Ground water | 3 | Below all study benchmarks |
| CITY OF SUGAR LAND RIVER PARK | TX0790354 | 4,278 | Ground water | 1 | Below all study benchmarks |
| CITY OF SULPHUR SPRINGS | TX1120002 | 16,243 | Surface water | 1 | Below all study benchmarks |
| CITY OF SWEENY | TX0200009 | 3,978 | Ground water | 1 | Below all study benchmarks |
| CITY OF SWEETWATER | TX1770002 | 12,401 | Surface water | 1 | Below all study benchmarks |
| CITY OF TAYLOR | TX2460004 | 20,622 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF TEAGUE | TX0810002 | 5,688 | Ground water | 2 | Below all study benchmarks |
| CITY OF TEMPLE | TX0140005 | 94,935 | Surface water | 1 | Below all study benchmarks |
| CITY OF TERRELL | TX1290006 | 18,432 | Surface water purchased | 1 | At or above a study benchmark |
| CITY OF TEXAS CITY | TX0840008 | 61,541 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF THE COLONY | TX0610081 | 45,367 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF THORNTON WATER SYSTEM | TX1470005 | 530 | Ground water | 1 | Below all study benchmarks |
| CITY OF THREE RIVERS | TX1490002 | 4,428 | Surface water | 2 | Below all study benchmarks |
| CITY OF TOMBALL | TX1010026 | 17,532 | Ground water | 2 | Below all study benchmarks |
| CITY OF TRINIDAD | TX1070004 | 1,482 | Surface water | 1 | Below all study benchmarks |
| CITY OF TYE | TX2210011 | 1,176 | Surface water purchased | 1 | At or above a study benchmark |
| CITY OF TYLER | TX2120004 | 107,000 | Surface water | 2 | Below all study benchmarks |
| CITY OF UNIVERSAL CITY | TX0150009 | 20,119 | Ground water | 3 | Below all study benchmarks |
| CITY OF UNIVERSITY PARK | TX0570061 | 25,617 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF UVALDE | TX2320002 | 17,450 | Ground water | 8 | Below all study benchmarks |
| CITY OF VAN | TX2340004 | 2,745 | Ground water | 1 | Below all study benchmarks |
| CITY OF VAN ALSTYNE | TX0910009 | 7,000 | Surface water purchased | 5 | Below all study benchmarks |
| CITY OF VENUS | TX1260006 | 3,816 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF VERNON | TX2440001 | 11,002 | Ground water | 1 | Below all study benchmarks |
| CITY OF VICTORIA | TX2350002 | 66,932 | Surface water | 1 | Below all study benchmarks |
| CITY OF WACO | TX1550008 | 146,241 | Surface water | 2 | Below all study benchmarks |
| CITY OF WALLER | TX2370003 | 5,448 | Ground water | 3 | Below all study benchmarks |
| CITY OF WATAUGA | TX2200328 | 23,806 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF WAXAHACHIE | TX0700008 | 50,814 | Surface water | 2 | Below all study benchmarks |
| CITY OF WEATHERFORD | TX1840005 | 35,903 | Surface water | 1 | Below all study benchmarks |
| CITY OF WEBSTER | TX1010226 | 13,710 | Surface water purchased | 1 | At or above a study benchmark |
| CITY OF WEST UNIVERSITY PLACE | TX1010027 | 19,200 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF WHARTON | TX2410005 | 8,756 | Ground water | 3 | Below all study benchmarks |
| CITY OF WHITE OAK | TX0920006 | 6,469 | Surface water | 1 | Below all study benchmarks |
| CITY OF WHITE SETTLEMENT | TX2200081 | 18,522 | Surface water purchased | 4 | Below all study benchmarks |
| CITY OF WHITEHOUSE | TX2120025 | 9,571 | Surface water purchased | 3 | Below all study benchmarks |
| CITY OF WHITESBORO | TX0910010 | 4,192 | Ground water | 4 | Below all study benchmarks |
| CITY OF WICHITA FALLS | TX2430001 | 102,316 | Surface water | 2 | Below all study benchmarks |
| CITY OF WILLOW PARK | TX1840027 | 4,936 | Surface water purchased | 9 | Below all study benchmarks |
| CITY OF WILLS POINT | TX2340005 | 7,281 | Surface water | 1 | Below all study benchmarks |
| CITY OF WILMER | TX0570018 | 7,296 | Surface water purchased | 2 | Below all study benchmarks |
| CITY OF WINNSBORO | TX2500004 | 3,614 | Surface water | 1 | Below all study benchmarks |
| CITY OF WOLFFORTH | TX1520005 | 9,600 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF WOODVILLE | TX2290001 | 6,069 | Ground water | 4 | Below all study benchmarks |
| CITY OF WOODWAY | TX1550048 | 9,383 | Surface water purchased | 6 | Below all study benchmarks |
| CITY OF WYLIE | TX0430011 | 48,393 | Surface water purchased | 1 | Below all study benchmarks |
| CITY OF YOAKUM | TX0620003 | 5,814 | Ground water | 2 | Below all study benchmarks |
| CLAY ROAD MUD | TX1011681 | 4,443 | Surface water purchased | 1 | Below all study benchmarks |
| CLEAR BROOK CITY MUD | TX1010418 | 18,108 | Surface water purchased | 4 | Below all study benchmarks |
| CLEAR LAKE CITY WATER AUTHORITY | TX1010056 | 89,702 | Surface water purchased | 5 | At or above a study benchmark |
| CLWSC CANYON LAKE SHORES | TX0460019 | 44,196 | Surface water | 14 | Below all study benchmarks |
| CNP UTILITY DISTRICT | TX1010429 | 14,718 | Surface water purchased | 3 | Below all study benchmarks |
| COLEMAN COUNTY SUD | TX0420034 | 5,000 | Surface water purchased | 2 | Below all study benchmarks |
| COLLEGE MOUND SUD | TX1290012 | 13,200 | Surface water purchased | 2 | Below all study benchmarks |
| COMBINE WSC | TX0570039 | 3,588 | Surface water purchased | 1 | Below all study benchmarks |
| COMBINED CONSUMERS SUD | TX1160052 | 9,087 | Surface water | 1 | Below all study benchmarks |
| COMMUNITY WSC | TX2200044 | 4,629 | Surface water | 1 | Below all study benchmarks |
| CONCHO RURAL WATER GRAPE CREEK | TX2260008 | 5,049 | Surface water purchased | 5 | Below all study benchmarks |
| CONCORD-ROBBINS WSC | TX1450018 | 10,035 | Ground water | 5 | Below all study benchmarks |
| COOLCREST WATER SYSTEM | TX0150046 | 951 | Ground water | 2 | Below all study benchmarks |
| COPEVILLE SUD | TX0430029 | 8,438 | Surface water purchased | 2 | Below all study benchmarks |
| CORNERSTONES MUD | TX1011692 | 5,331 | Ground water | 1 | Below all study benchmarks |
| CORPUS CHRISTI NAVAL AIR STATION | TX1780017 | 7,048 | Surface water purchased | 1 | Below all study benchmarks |
| COUNTY LINE SUD | TX1050038 | 19,609 | Surface water purchased | 2 | Below all study benchmarks |
| CREEDMOOR MAHA WSC | TX2270008 | 8,907 | Surface water purchased | 4 | Below all study benchmarks |
| CROCKETT COUNTY WCID 1 OZONA | TX0530012 | 3,800 | Ground water | 2 | Below all study benchmarks |
| CROSS COUNTRY WSC | TX1550059 | 3,939 | Ground water | 4 | Below all study benchmarks |
| CROSS TIMBERS WSC | TX0610020 | 8,751 | Surface water purchased | 4 | Below all study benchmarks |
| CRYSTAL CLEAR SUD | TX0940015 | 20,766 | Surface water purchased | 5 | Below all study benchmarks |
| CRYSTAL SYSTEMS | TX2120015 | 3,879 | Ground water | 4 | Below all study benchmarks |
| CY CHAMP PUD | TX1011522 | 7,428 | Ground water | 2 | Below all study benchmarks |
| CYPRESS FOREST PUD | TX1010919 | 3,912 | Ground water | 2 | Below all study benchmarks |
| CYPRESS HILL MUD 1 | TX1012378 | 11,052 | Ground water | 2 | Below all study benchmarks |
| CYPRESS KLEIN UTILITY DISTRICT WIMBLETON | TX1010431 | 3,960 | Ground water | 2 | Below all study benchmarks |
| CYPRESS SPRINGS SUD N PLANT 1 AND NE PLA | TX0800003 | 13,698 | Surface water | 2 | Below all study benchmarks |
| CYPRESSWOOD UTILITY DISTRICT | TX1010432 | 4,305 | Surface water purchased | 3 | Below all study benchmarks |
| D & M WSC | TX1740010 | 7,280 | Surface water purchased | 5 | Below all study benchmarks |
| DALHART MUNICIPAL WATER SYSTEM | TX0560001 | 8,256 | Ground water | 1 | Below all study benchmarks |
| DALLAS WATER UTILITY | TX0570004 | 1,356,479 | Surface water | 3 | Below all study benchmarks |
| DEAN DALE SUD | TX0390019 | 2,492 | Surface water purchased | 2 | Below all study benchmarks |
| DEAN WSC | TX2120009 | 5,907 | Ground water | 3 | Below all study benchmarks |
| DECKER HILLS | TX1700386 | 3,780 | Ground water | 4 | Below all study benchmarks |
| DEL RIO UTILITIES COMMISSION | TX2330001 | 36,506 | Groundwater under influence of surface water | 1 | Below all study benchmarks |
| DENTON COUNTY FWSD 11-A PALOMA | TX0610259 | 5,160 | Surface water purchased | 1 | Below all study benchmarks |
| DENTON COUNTY FWSD 7 LANTANA | TX0610228 | 13,325 | Surface water purchased | 1 | Below all study benchmarks |
| DIMMITT MUNICIPAL WATER SYSTEM | TX0350001 | 4,393 | Ground water | 2 | Below all study benchmarks |
| DOWDELL PUD | TX1010592 | 7,002 | Ground water | 4 | Below all study benchmarks |
| DRIPPING SPRINGS WSC | TX1050013 | 8,037 | Surface water purchased | 2 | Below all study benchmarks |
| EAST BELL WSC | TX0140118 | 4,287 | Surface water purchased | 3 | Below all study benchmarks |
| EAST BIGGS WATER SYSTEM | TX0710187 | 15,000 | Surface water purchased | 2 | Below all study benchmarks |
| EAST CEDAR CREEK FWSD B A MCKAY | TX1070019 | 6,753 | Surface water | 1 | Below all study benchmarks |
| EAST CEDAR CREEK FWSD BROOKSHIRE | TX1070167 | 14,823 | Surface water | 1 | Below all study benchmarks |
| EAST CENTRAL SUD | TX0150138 | 26,137 | Surface water purchased | 3 | Below all study benchmarks |
| EAST FORK SUD | TX0430033 | 17,589 | Surface water purchased | 1 | Below all study benchmarks |
| EAST MEDINA COUNTY SUD UNIT 1 | TX1630010 | 6,153 | Ground water | 1 | Below all study benchmarks |
| EAST MONTANA WATER SYSTEM | TX0710178 | 11,480 | Surface water purchased | 1 | Below all study benchmarks |
| EAST RIO HONDO WSC | TX0310096 | 24,756 | Surface water | 3 | Below all study benchmarks |
| EL DORADO UTILITY DISTRICT | TX1010471 | 3,591 | Ground water | 2 | Below all study benchmarks |
| EL OSO WSC | TX1280007 | 6,288 | Ground water | 2 | Below all study benchmarks |
| EL PASO COUNTY TORNILLO WID | TX0710019 | 3,600 | Ground water | 1 | Below all study benchmarks |
| EL PASO COUNTY WCID 4 FABENS | TX0710018 | 9,444 | Ground water | 1 | Below all study benchmarks |
| EL PASO WATER UTILITIES PUBLIC SERVICE B | TX0710002 | 747,168 | Surface water | 27 | At or above a study benchmark |
| ELDERVILLE WSC | TX0920019 | 9,021 | Surface water purchased | 2 | Below all study benchmarks |
| ELM CREEK WSC | TX1550026 | 4,620 | Surface water purchased | 3 | Below all study benchmarks |
| EMERALD FOREST UTILITY DISTRICT | TX1010541 | 7,326 | Ground water | 2 | Below all study benchmarks |
| EMHOUSE WATER SYSTEM | TX1750014 | 1,146 | Surface water purchased | 3 | Below all study benchmarks |
| ENCANTO REAL UTILITY DISTRICT | TX1010687 | 3,717 | Ground water | 1 | Below all study benchmarks |
| ERA WSC | TX0490014 | 462 | Ground water | 1 | Below all study benchmarks |
| EULA WSC | TX0300005 | 3,918 | Surface water purchased | 2 | At or above a study benchmark |
| FAIR OAKS RANCH UTILITIES | TX0150216 | 9,768 | Surface water purchased | 4 | Below all study benchmarks |
| FALCON RURAL WSC | TX2140003 | 3,600 | Surface water | 1 | Below all study benchmarks |
| FALFURRIAS UTILITY BOARD | TX0240001 | 4,473 | Ground water | 5 | Below all study benchmarks |
| FALLBROOK UTILITY DISTRICT | TX1010340 | 6,720 | Ground water | 2 | Below all study benchmarks |
| FAYETTE WSC WEST | TX0750022 | 5,802 | Ground water | 5 | Below all study benchmarks |
| FILES VALLEY WSC | TX1090035 | 4,776 | Surface water purchased | 1 | Below all study benchmarks |
| FIRST COLONY MUD 9 | TX0790230 | 7,818 | Ground water | 1 | Below all study benchmarks |
| FLO COMMUNITY WSC | TX1450015 | 5,256 | Ground water | 5 | Below all study benchmarks |
| FORNEY LAKE WSC | TX1290014 | 20,377 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 116 CANYON GATE | TX0790367 | 4,833 | Ground water | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 118 | TX0790366 | 5,346 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 119 | TX0790382 | 5,088 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 121 | TX0790393 | 3,477 | Ground water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 122 | TX0790416 | 3,366 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 124 | TX0790412 | 2,544 | Ground water | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 129 | TX0790437 | 4,713 | Ground water purchased | 2 | Below all study benchmarks |
| FORT BEND COUNTY MUD 133 | TX0790444 | 7,362 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 134B | TX0790532 | 7,356 | Ground water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 134C | TX0790533 | 7,260 | Ground water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 142 | TX0790429 | 11,595 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 143 WATER VIEW ESTA | TX0790472 | 7,245 | Ground water | 2 | Below all study benchmarks |
| FORT BEND COUNTY MUD 151 | TX0790443 | 10,233 | Ground water | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 165 | TX0790470 | 4,314 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 23 | TX0790237 | 13,695 | Ground water | 2 | Below all study benchmarks |
| FORT BEND COUNTY MUD 25 | TX0790130 | 15,327 | Ground water | 4 | Below all study benchmarks |
| FORT BEND COUNTY MUD 26 QUAIL GREEN WEST | TX0790137 | 5,424 | Ground water | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 30 | TX0790146 | 16,794 | Surface water purchased | 2 | Below all study benchmarks |
| FORT BEND COUNTY MUD 35 | TX0790433 | 6,297 | Ground water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 41 | TX0790229 | 4,179 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 42 WAT PLAT | TX0790254 | 4,395 | Ground water | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 48 | TX0790267 | 3,969 | Ground water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 50 | TX0790277 | 6,234 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 57 | TX0790455 | 5,335 | Surface water purchased | 1 | Below all study benchmarks |
| FORT BEND COUNTY MUD 58 | TX0790458 | 10,629 | Surface water purchased | 3 | Below all study benchmarks |
| FORT BEND COUNTY MUD 81 WESTON LAKES | TX0790268 | 4,107 | Ground water | 2 | Below all study benchmarks |
| FORT BLISS BIGGS ARMY AIRFIELD | TX0710078 | 2,961 | Ground water | 1 | Below all study benchmarks |
| FORT BLISS MAIN POST AREA | TX0710020 | 28,000 | Ground water | 2 | Below all study benchmarks |
| FOUKE WSC | TX2500016 | 7,668 | Ground water | 4 | Below all study benchmarks |
| FOUNTAINHEAD MUD | TX1010435 | 4,614 | Surface water purchased | 2 | Below all study benchmarks |
| FOUR PINES WSC | TX0010020 | 3,603 | Ground water | 3 | Below all study benchmarks |
| FOUR WAY SUD | TX0030020 | 6,684 | Ground water | 4 | Below all study benchmarks |
| FRIONA MUNICIPAL WATER SYSTEM | TX1850003 | 4,653 | Ground water | 3 | Below all study benchmarks |
| FRISCO WEST WCID | TX0610253 | 5,805 | Surface water purchased | 3 | Below all study benchmarks |
| FRUITVALE WSC | TX2340010 | 3,747 | Ground water | 4 | Below all study benchmarks |
| FRY ROAD MUD | TX1011679 | 3,711 | Ground water | 1 | Below all study benchmarks |
| G & W WSC | TX2370063 | 3,343 | Ground water | 2 | Below all study benchmarks |
| G M WSC | TX2020067 | 11,220 | Surface water | 5 | Below all study benchmarks |
| GALVESTON COUNTY WCID 1 | TX0840001 | 30,399 | Surface water purchased | 1 | Below all study benchmarks |
| GALVESTON COUNTY WCID 12 | TX0840031 | 8,721 | Surface water purchased | 3 | Below all study benchmarks |
| GALVESTON COUNTY WCID 8 | TX0840009 | 7,065 | Surface water purchased | 2 | Below all study benchmarks |
| GASTONIA SCURRY SUD | TX1290015 | 11,169 | Surface water purchased | 2 | Below all study benchmarks |
| GBRA CALHOUN COUNTY RURAL WATER SYSTEM | TX0290007 | 4,482 | Surface water purchased | 2 | Below all study benchmarks |
| GOFORTH SUD | TX1050019 | 34,893 | Surface water purchased | 4 | Below all study benchmarks |
| GOLDEN WSC | TX2500006 | 4,821 | Ground water | 6 | Below all study benchmarks |
| GONZALES COUNTY WSC | TX0890006 | 10,350 | Surface water purchased | 7 | Below all study benchmarks |
| GOODFELLOW AIR FORCE BASE | TX2260027 | 5,241 | Surface water purchased | 4 | Below all study benchmarks |
| GREEN VALLEY SUD | TX0940020 | 52,497 | Surface water purchased | 5 | Below all study benchmarks |
| GREENWOOD UTILITY DISTRICT | TX1010554 | 10,527 | Surface water purchased | 2 | Below all study benchmarks |
| HARDIN WSC | TX1460009 | 6,132 | Ground water | 5 | Below all study benchmarks |
| HARLETON WSC | TX1020074 | 4,107 | Surface water purchased | 2 | Below all study benchmarks |
| HARLINGEN WATER WORKS SYSTEM | TX0310002 | 85,900 | Surface water | 2 | Below all study benchmarks |
| HARRIS COUNTY FWSD 47 | TX1010260 | 4,250 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY FWSD 51 | TX1010238 | 19,671 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY FWSD 6 | TX1010768 | 2,229 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY FWSD 61 | TX1010237 | 15,400 | Ground water | 4 | Below all study benchmarks |
| HARRIS COUNTY IMPROVEMENT DISTRICT 18 | TX1013479 | 5,025 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 1 | TX1010539 | 12,342 | Ground water | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 102 | TX1010503 | 10,401 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 104 | TX1011534 | 4,854 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 106 | TX1013160 | 4,668 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 109 | TX1010620 | 9,501 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 11 | TX1010426 | 3,645 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 118 | TX1010897 | 6,678 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 119 | TX1010626 | 4,758 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 120 | TX1010774 | 13,197 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 132 | TX1010616 | 8,682 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 148 KINGSLAKE | TX1010938 | 5,448 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 149 | TX1011296 | 3,543 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 150 | TX1011250 | 6,786 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 151 | TX1010905 | 7,464 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 152 | TX1010902 | 7,314 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 154 | TX1011642 | 8,289 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 157 | TX1011430 | 13,062 | Surface water purchased | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 158 | TX1012297 | 6,798 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 16 | TX1011705 | 5,982 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 165 | TX1012187 | 40,503 | Surface water purchased | 5 | Below all study benchmarks |
| HARRIS COUNTY MUD 167 | TX1012842 | 16,761 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 168 | TX1011783 | 13,029 | Ground water | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 179 | TX1011848 | 5,115 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 18 HEATHERWOOD HUNTERS | TX1010512 | 4,083 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 180 | TX1011799 | 5,892 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 183 | TX1011824 | 3,981 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 185 | TX1011914 | 4,617 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 186 | TX1012214 | 4,005 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 188 | TX1011982 | 9,453 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 189 | TX1011809 | 6,906 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 196 | TX1013002 | 7,026 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 200 CRANBROOK | TX1012007 | 14,868 | Surface water purchased | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 208 | TX1012419 | 3,642 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 221 | TX1012972 | 4,839 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 222 | TX1013054 | 6,129 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 23 | TX1010649 | 3,170 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 230 | TX1012740 | 10,404 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 238 | TX1012361 | 7,773 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 239 | TX1012392 | 5,583 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 24 | TX1010572 | 14,796 | Surface water purchased | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 26 | TX1010715 | 17,178 | Ground water | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 276 | TX1012942 | 5,094 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 278 | TX1012835 | 10,584 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 281 | TX1013178 | 3,573 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 285 | TX1012677 | 14,268 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 287 | TX1013385 | 3,510 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 290 | TX1013294 | 8,259 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 304 | TX1012941 | 4,158 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 322 FAIRFIELD VILLAGE | TX1012542 | 4,266 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 342 | TX1012973 | 4,035 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 345 | TX1012768 | 3,855 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 354 | TX1012965 | 6,588 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 360 | TX1012897 | 4,707 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 361 | TX1013123 | 3,705 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 367 | TX1013040 | 6,759 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 368 | TX1011908 | 11,835 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 370 | TX1013113 | 4,452 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 374 CYPRESS CREEK LAKE | TX1013450 | 5,526 | Ground water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 391 | TX1013253 | 8,835 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 397 | TX1013295 | 4,413 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 400 - WEST | TX1013310 | 5,217 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 401 | TX1013289 | 3,750 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 412 | TX1013354 | 3,480 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 43 | TX1010565 | 5,940 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 46 | TX1010903 | 5,418 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 49 | TX1011462 | 10,893 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 495 | TX1013532 | 5,007 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 5 | TX1010500 | 5,487 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 50 | TX1010719 | 4,743 | Ground water | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 53 | TX1010720 | 17,856 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 55 HERITAGE PARK | TX1010678 | 16,392 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY MUD 6 CARRIAGE LANE | TX1010496 | 3,936 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 64 | TX1011513 | 6,726 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 65 | TX1011678 | 6,330 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 70 | TX1011690 | 5,763 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 71 | TX1011823 | 17,079 | Ground water | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 8 | TX1010712 | 3,271 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 81 | TX1010581 | 11,514 | Ground water | 4 | Below all study benchmarks |
| HARRIS COUNTY MUD 82 | TX1010630 | 18,990 | Ground water | 3 | Below all study benchmarks |
| HARRIS COUNTY MUD 86 | TX1012953 | 5,397 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY MUD 96 | TX1013343 | 6,993 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY UD 15 | TX1011778 | 3,489 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY UD 16 | TX1013156 | 6,069 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY UTILITY DISTRICT 6 | TX1010501 | 11,262 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY WCID 1 | TX1010159 | 8,559 | Surface water purchased | 3 | Below all study benchmarks |
| HARRIS COUNTY WCID 109 | TX1010359 | 10,134 | Surface water purchased | 3 | Below all study benchmarks |
| HARRIS COUNTY WCID 110 | TX1010482 | 9,807 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 114 | TX1010317 | 5,160 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 116 | TX1010507 | 3,627 | Ground water | 1 | Below all study benchmarks |
| HARRIS COUNTY WCID 119 | TX1010509 | 9,150 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 132 | TX1010413 | 3,501 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 133 | TX1010210 | 5,082 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 161 | TX1013612 | 3,129 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY WCID 36 | TX1010239 | 11,073 | Surface water purchased | 3 | Below all study benchmarks |
| HARRIS COUNTY WCID 74 | TX1010480 | 5,886 | Ground water | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 84 | TX1010113 | 6,552 | Surface water purchased | 1 | Below all study benchmarks |
| HARRIS COUNTY WCID 89 | TX1012370 | 9,033 | Surface water purchased | 2 | Below all study benchmarks |
| HARRIS COUNTY WCID 96 | TX1013175 | 10,530 | Ground water | 1 | Below all study benchmarks |
| HARRIS FORT BEND COUNTIES MUD 1 | TX0790216 | 3,812 | Ground water purchased | 1 | Below all study benchmarks |
| HARRIS FORT BEND COUNTIES MUD 5 | TX0790347 | 4,641 | Ground water | 2 | Below all study benchmarks |
| HARRIS MONTGOMERY COUNTIES MUD 386 | TX1013305 | 18,018 | Ground water purchased | 3 | Below all study benchmarks |
| HARRIS-FORT BEND COUNTIES MUD 3 | TX1013365 | 9,297 | Ground water | 1 | Below all study benchmarks |
| HAWLEY WSC | TX1270006 | 8,436 | Surface water purchased | 4 | At or above a study benchmark |
| HEATHERLOCH MUD | TX1010548 | 6,612 | Surface water purchased | 1 | Below all study benchmarks |
| HEREFORD MUNICIPAL WATER SYSTEM | TX0590001 | 16,048 | Ground water | 4 | Below all study benchmarks |
| HICKORY CREEK SUD | TX1160062 | 5,373 | Ground water | 4 | Below all study benchmarks |
| HIGH POINT WATER SUPPLY CORPORATION | TX1290016 | 16,341 | Surface water purchased | 2 | Below all study benchmarks |
| HILL COUNTY WSC | TX1090041 | 4,383 | Surface water purchased | 7 | Below all study benchmarks |
| HOLIDAY ESTATES WATER | TX1160028 | 231 | Surface water purchased | 1 | Below all study benchmarks |
| HOLLY LAKE RANCH | TX2500012 | 3,540 | Ground water | 5 | Below all study benchmarks |
| HORIZON REGIONAL MUD | TX0710005 | 31,542 | Ground water | 1 | Below all study benchmarks |
| HORSEPEN BAYOU MUD | TX1011785 | 6,597 | Surface water purchased | 2 | Below all study benchmarks |
| HUDSON WSC | TX0030023 | 10,907 | Ground water | 2 | Below all study benchmarks |
| HUNTERS GLEN MUD | TX1010615 | 9,405 | Ground water | 2 | Below all study benchmarks |
| INTERSTATE MUD | TX1012264 | 6,591 | Ground water | 2 | Below all study benchmarks |
| JACKRABBIT ROAD PUD | TX1010538 | 8,346 | Surface water purchased | 2 | Below all study benchmarks |
| JACKSON WSC | TX2120016 | 5,532 | Ground water | 4 | Below all study benchmarks |
| JARRELL SCHWERTNER WSC | TX2460011 | 9,681 | Surface water purchased | 6 | Below all study benchmarks |
| JASPER COUNTY WCID 1 | TX1210003 | 3,035 | Ground water | 1 | Below all study benchmarks |
| JBSA - LACKLAND | TX0150114 | 20,907 | Ground water | 4 | Below all study benchmarks |
| JBSA - RANDOLPH | TX0150115 | 10,949 | Ground water | 3 | Below all study benchmarks |
| JBSA - SAM HOUSTON | TX0150116 | 37,563 | Ground water | 3 | Below all study benchmarks |
| JEFFERSON COUNTY WCID 10 | TX1230003 | 4,605 | Surface water | 1 | Below all study benchmarks |
| JIM HOGG COUNTY WCID 2 | TX1240001 | 5,397 | Ground water | 3 | Below all study benchmarks |
| JOHNSON COUNTY SUD | TX1260018 | 65,517 | Surface water purchased | 15 | Below all study benchmarks |
| JONAH WATER SUD | TX2460022 | 29,861 | Surface water purchased | 6 | Below all study benchmarks |
| JONES WSC | TX2500007 | 6,075 | Ground water | 4 | Below all study benchmarks |
| KAUFMAN COUNTY MUD 14 | TX1290053 | 6,456 | Surface water purchased | 1 | Below all study benchmarks |
| KEMPNER WSC | TX1410028 | 17,721 | Surface water | 1 | Below all study benchmarks |
| KINGDOM HEIGHTS WATER SYSTEM | TX0790462 | 2,934 | Ground water | 1 | Below all study benchmarks |
| KINGS MANOR MUD | TX1012865 | 4,377 | Ground water | 1 | Below all study benchmarks |
| KINGS POINT WSC | TX0460205 | 174 | Ground water | 1 | Below all study benchmarks |
| KINGSBRIDGE MUD | TX0790158 | 8,663 | Surface water purchased | 2 | Below all study benchmarks |
| KINGSLAND WSC | TX1500012 | 12,975 | Surface water | 1 | Below all study benchmarks |
| KNIPPA WSC | TX2320004 | 933 | Ground water | 1 | Below all study benchmarks |
| LA VENTANA WATER SUPPLY SYSTEM | TX1050131 | 747 | Ground water | 1 | Below all study benchmarks |
| LAGUNA MADRE WATER DISTRICT | TX0310005 | 46,674 | Surface water | 2 | Below all study benchmarks |
| LAKE CITIES MUNICIPAL UTILITY AUTHORITY | TX0610029 | 17,826 | Surface water purchased | 3 | Below all study benchmarks |
| LAKE FOREST UTILITY DISTRICT | TX1010494 | 7,106 | Ground water | 2 | Below all study benchmarks |
| LAKE FORK WSC | TX2500039 | 5,082 | Ground water | 3 | Below all study benchmarks |
| LAKE LIVINGSTON PINESHADOWS EAST | TX1870166 | 5,675 | Surface water | 2 | Below all study benchmarks |
| LAKE LIVINGSTON VILLAGE | TX1870156 | 1,471 | Ground water | 1 | Below all study benchmarks |
| LAKES OF ROSEHILL WATER SYSTEM | TX1013050 | 1,239 | Ground water | 2 | Below all study benchmarks |
| LAKEWAY MUD | TX2270012 | 10,512 | Surface water | 1 | Below all study benchmarks |
| LAMAR COUNTY WATER SUPPLY DISTRICT | TX1390015 | 25,569 | Surface water purchased | 1 | Below all study benchmarks |
| LANGHAM CREEK UTILITY DISTRICT | TX1011249 | 10,377 | Surface water purchased | 3 | Below all study benchmarks |
| LAUGHLIN AIR FORCE BASE | TX2330006 | 4,010 | Surface water purchased | 1 | Below all study benchmarks |
| LEE COUNTY WSC | TX1440005 | 14,670 | Ground water | 8 | Below all study benchmarks |
| LINDALE RURAL WSC | TX2120017 | 14,781 | Ground water | 3 | Below all study benchmarks |
| LOUETTA NORTH PUD | TX1011870 | 4,848 | Surface water purchased | 1 | Below all study benchmarks |
| LOWER VALLEY WATER DISTRICT | TX0710154 | 59,049 | Surface water purchased | 2 | Below all study benchmarks |
| LUBBOCK PUBLIC WATER SYSTEM | TX1520002 | 275,041 | Surface water | 3 | Below all study benchmarks |
| LUELLA SUD | TX0910032 | 4,200 | Ground water | 8 | Below all study benchmarks |
| LUMBERTON MUD | TX1000035 | 31,428 | Ground water | 4 | Below all study benchmarks |
| M E N WSC | TX1750015 | 4,040 | Surface water purchased | 1 | Below all study benchmarks |
| M S WSC | TX1550037 | 744 | Ground water | 2 | Below all study benchmarks |
| MACBEE SUD | TX2340012 | 7,548 | Surface water | 1 | Below all study benchmarks |
| MADERA VALLEY WSC | TX1950006 | 2,001 | Ground water | 3 | Below all study benchmarks |
| MALCOMSON ROAD UTILITY DISTRICT | TX1010495 | 7,231 | Surface water purchased | 2 | Below all study benchmarks |
| MANVILLE WSC | TX2270033 | 39,648 | Surface water purchased | 9 | At or above a study benchmark |
| MARTIN SPRINGS WSC | TX1120015 | 4,095 | Ground water | 4 | Below all study benchmarks |
| MASON CREEK UTILITY DISTRICT | TX1010379 | 8,900 | Ground water | 3 | Below all study benchmarks |
| MAURICEVILLE MUD | TX1810144 | 10,374 | Ground water | 5 | Below all study benchmarks |
| MAXWELL WSC | TX0280003 | 16,104 | Surface water purchased | 2 | Below all study benchmarks |
| MCALLEN PUBLIC UTILITY | TX1080006 | 189,957 | Surface water | 2 | Below all study benchmarks |
| MCCOY WSC | TX0070023 | 9,621 | Ground water | 4 | Below all study benchmarks |
| MEADOWHILL REGIONAL MUD | TX1010387 | 13,863 | Ground water | 3 | Below all study benchmarks |
| MEMORIAL MUD | TX1011242 | 6,615 | Ground water | 2 | Below all study benchmarks |
| MEMORIAL VILLAGES WATER AUTHORITY | TX1010148 | 11,382 | Surface water purchased | 3 | Below all study benchmarks |
| METROPLEX HOMESTEADS WATER SUPPLY | TX1260074 | 3,588 | Ground water | 4 | Below all study benchmarks |
| MILANO WSC | TX1660009 | 4,308 | Ground water | 4 | Below all study benchmarks |
| MILITARY HWY WSC LAS RUSIAS | TX1080067 | 17,943 | Surface water purchased | 2 | Below all study benchmarks |
| MILITARY HWY WSC PROGRESO | TX1080234 | 12,198 | Ground water | 2 | Below all study benchmarks |
| MILLS ROAD MUD | TX1011107 | 6,717 | Surface water purchased | 2 | Below all study benchmarks |
| MISSION BEND MUD 1 | TX1011718 | 6,546 | Ground water | 2 | Below all study benchmarks |
| MISSION BEND MUD 2 | TX1011826 | 10,155 | Ground water | 3 | Below all study benchmarks |
| MITCHELL COUNTY UTILITY | TX1680004 | 3,612 | Ground water | 1 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 112 | TX1700762 | 5,454 | Ground water | 1 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 119 SPRING TRAILS | TX1700773 | 6,621 | Ground water | 2 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 15 | TX1700118 | 6,564 | Ground water | 2 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 18 | TX1700546 | 7,608 | Ground water | 2 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 19 | TX1700319 | 4,422 | Ground water | 3 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 47 | TX1700458 | 24,171 | Surface water purchased | 1 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 60 | TX1700470 | 15,036 | Surface water purchased | 1 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 67 | TX1700554 | 16,821 | Surface water purchased | 1 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 7 | TX1700169 | 12,528 | Surface water purchased | 1 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 89 | TX1700717 | 4,761 | Ground water | 2 | Below all study benchmarks |
| MONTGOMERY COUNTY MUD 9 | TX1700220 | 5,949 | Ground water | 3 | Below all study benchmarks |
| MONTGOMERY COUNTY UD 3 | TX1700116 | 3,825 | Ground water | 2 | Below all study benchmarks |
| MONTGOMERY COUNTY UD 4 | TX1700286 | 4,980 | Ground water | 2 | Below all study benchmarks |
| MONTGOMERY COUNTY WCID 1 | TX1700119 | 7,070 | Ground water | 2 | Below all study benchmarks |
| MOUNT HOUSTON ROAD MUD | TX1010728 | 5,346 | Ground water | 2 | Below all study benchmarks |
| MOUNTAIN PEAK SUD | TX0700042 | 23,988 | Surface water purchased | 7 | Below all study benchmarks |
| MULESHOE MUNICIPAL WATER SYSTEM | TX0090001 | 5,158 | Ground water | 1 | Below all study benchmarks |
| MULLINS MOBILE HOME PARK | TX0610195 | 87 | Ground water | 1 | Below all study benchmarks |
| MULTI-COUNTY WSC | TX0500044 | 3,631 | Surface water purchased | 1 | Below all study benchmarks |
| MUSTANG SUD | TX0610036 | 110,826 | Surface water purchased | 10 | Below all study benchmarks |
| Montgomery Trace | TX1700638 | 25,917 | Surface water purchased | 9 | Below all study benchmarks |
| NAVAL AIR STATION KINGSVILLE | TX1370003 | 1,550 | Surface water purchased | 1 | Below all study benchmarks |
| NAVARRO MILLS WSC | TX1750024 | 3,852 | Surface water purchased | 1 | Below all study benchmarks |
| NEW BRAUNFELS UTILITIES | TX0460001 | 116,477 | Surface water | 9 | Below all study benchmarks |
| NEW CANEY MUD | TX1700101 | 14,307 | Ground water | 3 | Below all study benchmarks |
| NEWPORT MUD | TX1010362 | 13,191 | Surface water | 2 | Below all study benchmarks |
| NORTH ALAMO WSC | TX1080029 | 171,195 | Surface water | 7 | Below all study benchmarks |
| NORTH AUSTIN MUD 1 | TX2270226 | 11,133 | Surface water purchased | 1 | Below all study benchmarks |
| NORTH CHEROKEE WSC | TX0370018 | 6,951 | Surface water purchased | 2 | Below all study benchmarks |
| NORTH COLLIN SUD | TX0430055 | 10,716 | Surface water purchased | 3 | Below all study benchmarks |
| NORTH GREEN MUD | TX1010331 | 4,941 | Ground water | 1 | Below all study benchmarks |
| NORTH HARDIN WSC | TX1000015 | 7,755 | Ground water | 3 | Below all study benchmarks |
| NORTH HUNT SUD | TX1160039 | 4,836 | Surface water purchased | 3 | Below all study benchmarks |
| NORTH MISSION GLEN MUD | TX0790174 | 9,096 | Surface water purchased | 1 | Below all study benchmarks |
| NORTH PARK PUD | TX1010745 | 6,708 | Ground water | 1 | Below all study benchmarks |
| NORTHAMPTON MUD | TX1010337 | 12,162 | Ground water | 3 | Below all study benchmarks |
| NORTHGATE CROSSING MUD 1 | TX1013077 | 3,906 | Ground water | 1 | Below all study benchmarks |
| NORTHGATE CROSSING MUD 2 | TX1013078 | 3,753 | Ground water | 1 | Below all study benchmarks |
| NORTHTOWN MUD | TX2270264 | 11,520 | Surface water purchased | 1 | Below all study benchmarks |
| NORTHWEST FREEWAY MUD | TX1011256 | 3,678 | Ground water | 2 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 10 | TX1011649 | 7,671 | Ground water | 3 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 12 | TX1011901 | 7,764 | Ground water | 1 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 15 | TX1011600 | 6,915 | Ground water | 2 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 20 | TX1011998 | 3,429 | Ground water | 1 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 23 | TX1011746 | 4,470 | Ground water | 1 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 32 | TX1013034 | 5,016 | Ground water | 1 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 5 | TX1010884 | 25,425 | Surface water purchased | 4 | Below all study benchmarks |
| NORTHWEST HARRIS COUNTY MUD 9 | TX1011599 | 7,848 | Ground water | 2 | Below all study benchmarks |
| NORTHWEST PARK MUD | TX1010593 | 18,168 | Ground water | 3 | Below all study benchmarks |
| NOTTINGHAM COUNTRY MUD | TX1012315 | 7,089 | Ground water | 1 | Below all study benchmarks |
| NUECES COUNTY WCID 3 | TX1780005 | 14,000 | Surface water | 1 | Below all study benchmarks |
| NUECES COUNTY WCID 4 | TX1780006 | 14,880 | Surface water purchased | 2 | Below all study benchmarks |
| OAK TRAIL SHORES | TX1110004 | 5,676 | Surface water | 1 | Below all study benchmarks |
| OAKMONT PUD | TX1012981 | 3,450 | Ground water | 1 | Below all study benchmarks |
| OLD EGYPT SUBDIVISION | TX1700666 | 8,442 | Ground water | 4 | Below all study benchmarks |
| OLMITO WSC | TX0310026 | 8,952 | Surface water | 1 | Below all study benchmarks |
| ONALASKA WSC | TX1870009 | 5,289 | Ground water | 4 | Below all study benchmarks |
| ORANGE COUNTY WCID 1 | TX1810005 | 15,258 | Ground water | 3 | Below all study benchmarks |
| ORANGE COUNTY WCID 2 | TX1810006 | 4,074 | Ground water | 3 | Below all study benchmarks |
| ORANGEFIELD WSC | TX1810186 | 8,231 | Ground water | 2 | Below all study benchmarks |
| PARKWAY UTILITY DISTRICT | TX1010750 | 7,323 | Ground water | 2 | Below all study benchmarks |
| PATTISON WSC | TX2370005 | 1,650 | Ground water | 2 | Below all study benchmarks |
| PAXTON WSC JACKSON PLANT | TX2100031 | 1,137 | Surface water purchased | 1 | Below all study benchmarks |
| PECAN GROVE MUD | TX0790132 | 14,913 | Surface water | 4 | Below all study benchmarks |
| PECOS COUNTY WCID 1 | TX1860026 | 3,612 | Ground water | 1 | Below all study benchmarks |
| PERRYTON MUNICIPAL WATER SYSTEM | TX1790001 | 8,492 | Ground water | 1 | Below all study benchmarks |
| PINE HARBOR SUBDIVISION | TX1580023 | 1,314 | Ground water | 1 | Below all study benchmarks |
| PINE TRAILS UTILITY | TX1010535 | 6,969 | Surface water purchased | 1 | Below all study benchmarks |
| PIONEER VALLEY WATER CO | TX0490020 | 1,002 | Ground water | 1 | Below all study benchmarks |
| PLAINVIEW MUNICIPAL WATER SYSTEM | TX0950004 | 21,104 | Surface water | 5 | Below all study benchmarks |
| PLANTATION MUD | TX0790112 | 4,260 | Ground water | 2 | Below all study benchmarks |
| PLUM CREEK | TX1050028 | 7,065 | Surface water purchased | 2 | Below all study benchmarks |
| PONDEROSA FOREST UTILITY DISTRICT | TX1010384 | 10,101 | Ground water | 3 | Below all study benchmarks |
| PORTER SUD | TX1700068 | 26,388 | Ground water | 4 | Below all study benchmarks |
| POSSUM KINGDOM WSC | TX1820076 | 7,395 | Surface water | 1 | Below all study benchmarks |
| PRAIRIE VIEW A&M UNIVERSITY | TX2370002 | 9,550 | Ground water | 2 | Below all study benchmarks |
| PRITCHETT WATER SUPPLY CORPORATION | TX2300012 | 10,089 | Ground water | 13 | Below all study benchmarks |
| QUAIL VALLEY UTILITY DISTRICT | TX0790028 | 14,409 | Ground water | 3 | Below all study benchmarks |
| R C H WSC | TX1990012 | 7,863 | Surface water purchased | 1 | Below all study benchmarks |
| RAMEY WSC | TX2500018 | 5,238 | Ground water | 6 | Below all study benchmarks |
| RAYFORD ROAD MUD | TX1700334 | 11,550 | Surface water purchased | 2 | Below all study benchmarks |
| REID ROAD MUD 1 | TX1010872 | 6,969 | Ground water | 2 | Below all study benchmarks |
| REID ROAD MUD 2 | TX1011928 | 4,662 | Ground water | 2 | Below all study benchmarks |
| REMINGTON MUD 1 | TX1013074 | 13,746 | Surface water purchased | 2 | Below all study benchmarks |
| RICE UNIVERSITY | TX1010908 | 8,415 | Surface water purchased | 2 | Below all study benchmarks |
| RICE WSC | TX1750019 | 10,167 | Surface water purchased | 2 | Below all study benchmarks |
| RICEWOOD MUD | TX1012227 | 4,908 | Surface water purchased | 1 | Below all study benchmarks |
| RICHLAND SUD | TX2060012 | 2,505 | Ground water | 2 | Below all study benchmarks |
| RINCON WSC | TX2050078 | 5,034 | Surface water purchased | 3 | Below all study benchmarks |
| RIO WSC | TX2140016 | 6,939 | Surface water | 1 | Below all study benchmarks |
| ROCKETT SUD | TX0700033 | 46,614 | Surface water purchased | 2 | Below all study benchmarks |
| RRA TELL CEE VEE WS | TX0380013 | 534 | Surface water purchased | 1 | Below all study benchmarks |
| S S WSC | TX2470015 | 20,826 | Ground water | 5 | Below all study benchmarks |
| SAGEMEADOW UTILITY DISTRICT | TX1010386 | 6,975 | Surface water purchased | 2 | Below all study benchmarks |
| SALADO WSC | TX0140035 | 11,460 | Surface water purchased | 10 | Below all study benchmarks |
| SAN ANTONIO WATER SYSTEM | TX0150018 | 2,643,729 | Surface water purchased | 44 | Below all study benchmarks |
| SAN JACINTO SUD | TX2040033 | 3,993 | Ground water | 3 | Below all study benchmarks |
| SAN LEON MUD | TX0840063 | 11,622 | Surface water purchased | 1 | Below all study benchmarks |
| SAND FLAT WSC | TX2120020 | 4,569 | Ground water | 3 | Below all study benchmarks |
| SARDIS LONE ELM WSC | TX0700034 | 20,736 | Surface water purchased | 7 | Below all study benchmarks |
| SEBASTIAN MUD | TX2450006 | 1,884 | Surface water | 3 | Below all study benchmarks |
| SHARON WSC | TX2500020 | 9,111 | Ground water | 9 | Below all study benchmarks |
| SHARYLAND WSC | TX1080033 | 68,562 | Surface water | 3 | Below all study benchmarks |
| SHELBYVILLE WSC | TX2100014 | 1,800 | Ground water | 2 | Below all study benchmarks |
| SHEPPARD AIR FORCE BASE | TX2430007 | 19,500 | Surface water purchased | 1 | Below all study benchmarks |
| SIENNA PLANTATION MUD 10 | TX0790452 | 7,824 | Ground water purchased | 1 | Below all study benchmarks |
| SIENNA PLANTATION MUD 2 | TX0790345 | 4,847 | Ground water purchased | 1 | Below all study benchmarks |
| SIENNA PLANTATION MUD 3 | TX0790376 | 7,365 | Ground water purchased | 1 | Below all study benchmarks |
| SJWTX TRIPLE PEAK PLANT | TX0460172 | 32,973 | Surface water | 14 | At or above a study benchmark |
| SONTERRA MUD | TX2460157 | 16,614 | Surface water purchased | 3 | Below all study benchmarks |
| SOUTH FREESTONE COUNTY WSC | TX0810005 | 3,753 | Ground water | 9 | Below all study benchmarks |
| SOUTH GRAYSON SUD | TX0910064 | 6,750 | Ground water | 5 | Below all study benchmarks |
| SOUTH NEWTON WSC | TX1760022 | 3,729 | Ground water | 4 | Below all study benchmarks |
| SOUTH TAWAKONI WSC | TX2340019 | 5,205 | Surface water | 1 | Below all study benchmarks |
| SOUTHERN MONTGOMERY COUNTY MUD | TX1700073 | 13,372 | Surface water purchased | 3 | Below all study benchmarks |
| SOUTHERN UTILITIES | TX2120063 | 69,735 | Surface water purchased | 27 | Below all study benchmarks |
| SOUTHERN WATER | TX1010012 | 3,933 | Ground water | 1 | Below all study benchmarks |
| SOUTHWEST FANNIN COUNTY SUD | TX0740031 | 9,198 | Ground water | 8 | Below all study benchmarks |
| SOUTHWEST MILAM WSC | TX1660015 | 11,739 | Ground water | 3 | Below all study benchmarks |
| SPANISH BIT PLANTATION SUB | TX1610102 | 126 | Ground water | 1 | Below all study benchmarks |
| SPANISH GRANT SUBDIVISION | TX0700064 | 444 | Ground water | 1 | Below all study benchmarks |
| SPEARMAN MUNICIPAL WATER SYSTEM | TX0980001 | 3,172 | Ground water | 2 | Below all study benchmarks |
| SPENCER ROAD PUD | TX1010654 | 5,607 | Surface water purchased | 2 | Below all study benchmarks |
| SPRING CREEK UTILITY DISTRICT | TX1700133 | 8,919 | Ground water | 1 | Below all study benchmarks |
| SPRING MEADOWS MUD | TX1013261 | 4,200 | Surface water purchased | 1 | Below all study benchmarks |
| SPRING WEST MUD | TX1013017 | 2,639 | Ground water | 2 | Below all study benchmarks |
| SPRINGS HILL WSC | TX0940022 | 35,541 | Surface water | 3 | Below all study benchmarks |
| STANLEY LAKE MUD | TX1700097 | 3,783 | Ground water | 4 | Below all study benchmarks |
| STARRVILLE-FRIENDSHIP WSC | TX2120012 | 2,121 | Ground water | 4 | Below all study benchmarks |
| STEAMBOAT MOUNTAIN WSC | TX2210022 | 8,178 | Surface water purchased | 2 | Below all study benchmarks |
| SUGARBERRY PLACE | TX1013084 | 864 | Ground water | 1 | Below all study benchmarks |
| SUNBELT FWSD HIGH MEADOWS SUBDIVISION | TX1010292 | 8,946 | Surface water purchased | 2 | Below all study benchmarks |
| SUNBELT FWSD OAKWILDE SUBDIVISION | TX1010022 | 6,819 | Surface water purchased | 2 | Below all study benchmarks |
| SUNBELT FWSD WOODLAND OAKS SUBDIVISION | TX1010758 | 4,578 | Surface water purchased | 2 | Below all study benchmarks |
| SUNKO WSC | TX2470005 | 5,064 | Ground water | 2 | Below all study benchmarks |
| TALTY SUD | TX1290025 | 15,987 | Surface water purchased | 2 | Below all study benchmarks |
| TANGLEWOOD ON TEXOMA | TX0910052 | 4,341 | Surface water purchased | 4 | At or above a study benchmark |
| TARKINGTON SUD | TX1460055 | 5,265 | Ground water | 2 | Below all study benchmarks |
| TATTOR ROAD MUD | TX1010625 | 5,400 | Ground water | 1 | Below all study benchmarks |
| TBCD WINNIE STOWELL | TX0360002 | 8,397 | Surface water | 1 | Below all study benchmarks |
| TDCJ BETO UNIT | TX0010044 | 8,148 | Ground water | 3 | Below all study benchmarks |
| TDCJ CHASE FIELD | TX0130002 | 5,669 | Ground water | 1 | Below all study benchmarks |
| TDCJ COFFIELD MICHAEL | TX0010031 | 7,965 | Ground water | 3 | Below all study benchmarks |
| TDCJ JESTER 1 UNIT | TX0790085 | 3,365 | Ground water | 2 | Below all study benchmarks |
| TDCJ RAMSEY AREA | TX0200201 | 5,119 | Ground water | 3 | Below all study benchmarks |
| TEXARKANA WATER UTILITIES, TX | TX0190004 | 37,000 | Surface water | 2 | Below all study benchmarks |
| TEXAS A&M UNIVERSITY COMMERCE | TX1160008 | 4,350 | Surface water purchased | 2 | Below all study benchmarks |
| TEXAS A&M UNIVERSITY MAIN CAMPUS | TX0210017 | 58,500 | Ground water | 2 | Below all study benchmarks |
| TEXAS NATIONAL MUD | TX1700207 | 931 | Ground water | 1 | Below all study benchmarks |
| TEXAS STATE TECHNICAL COLLEGE - WACO | TX1550138 | 3,100 | Surface water purchased | 1 | Below all study benchmarks |
| TEXAS STATE UNIVERSITY - SAN MARCOS | TX1050003 | 43,552 | Ground water | 1 | Below all study benchmarks |
| THE CONSOLIDATED WSC CENTRAL SYSTEM | TX1130031 | 3,878 | Ground water | 2 | Below all study benchmarks |
| THUNDERBIRD UTILITY DISTRICT 1 | TX0790033 | 4,203 | Ground water | 2 | Below all study benchmarks |
| TIMBER LANE UTILITY DISTRICT | TX1010278 | 24,507 | Ground water | 4 | Below all study benchmarks |
| TOWN OF ANNETTA DEER CREEK | TX1840111 | 2,418 | Ground water | 8 | Below all study benchmarks |
| TOWN OF ANTHONY | TX0710001 | 5,555 | Ground water | 3 | At or above a study benchmark |
| TOWN OF CUT AND SHOOT | TX1700592 | 6,000 | Ground water | 2 | Below all study benchmarks |
| TOWN OF FLOWER MOUND | TX0610023 | 80,000 | Surface water purchased | 3 | Below all study benchmarks |
| TOWN OF HIGHLAND PARK | TX0570049 | 8,959 | Surface water purchased | 1 | Below all study benchmarks |
| TOWN OF LITTLE ELM | TX0610035 | 41,000 | Surface water purchased | 1 | Below all study benchmarks |
| TOWN OF PROSPER | TX0430009 | 42,598 | Surface water purchased | 1 | Below all study benchmarks |
| TOWN OF PROVIDENCE VILLAGE | TX0610244 | 7,128 | Surface water purchased | 1 | Below all study benchmarks |
| TOWN OF SUNNYVALE | TX0570059 | 8,839 | Surface water purchased | 1 | Below all study benchmarks |
| TRAIL OF THE LAKES MUD | TX1010617 | 9,480 | Ground water | 2 | Below all study benchmarks |
| TRAVIS COUNTY WCID 17 | TX2270027 | 45,165 | Surface water | 2 | Below all study benchmarks |
| TRI COUNTY SUD | TX0730004 | 5,353 | Ground water | 2 | Below all study benchmarks |
| TRI SUD | TX2250004 | 17,641 | Surface water purchased | 1 | Below all study benchmarks |
| TULIA MUNICIPAL WATER SYSTEM | TX2190003 | 4,951 | Ground water | 2 | Below all study benchmarks |
| TWO WAY SUD | TX0910022 | 6,804 | Ground water | 6 | Below all study benchmarks |
| TYLER COUNTY SUD | TX2290037 | 5,872 | Ground water | 5 | Below all study benchmarks |
| UNION WSC | TX2140004 | 5,793 | Surface water | 1 | Below all study benchmarks |
| UPPER JASPER COUNTY WATER AUTHORITY 1 | TX1210060 | 3,048 | Ground water | 3 | Below all study benchmarks |
| US ARMY SOUTH FORT HOOD | TX0140107 | 35,669 | Surface water purchased | 2 | Below all study benchmarks |
| VALLEY RANCH MUD 1 | TX1700752 | 4,056 | Ground water purchased | 1 | Below all study benchmarks |
| VERDE PARK ESTATES | TX1330027 | 213 | Ground water | 1 | Below all study benchmarks |
| VIRGINIA HILL WSC | TX1070200 | 4,290 | Ground water | 3 | Below all study benchmarks |
| WALNUT CREEK SUD | TX1840008 | 30,364 | Surface water | 1 | Below all study benchmarks |
| WALNUT GROVE WSC | TX2120024 | 8,775 | Surface water purchased | 3 | Below all study benchmarks |
| WALSTON SPRINGS WSC | TX0010030 | 4,221 | Ground water | 3 | Below all study benchmarks |
| WEBB COUNTY WATER UTILITIES | TX2400022 | 8,358 | Surface water | 1 | Below all study benchmarks |
| WELLBORN SUD | TX0210016 | 25,092 | Surface water | 6 | Below all study benchmarks |
| WELLS BRANCH MUD 1 | TX2270227 | 18,015 | Surface water purchased | 1 | Below all study benchmarks |
| WEST BELL COUNTY WSC | TX0140105 | 4,842 | Surface water purchased | 1 | Below all study benchmarks |
| WEST CEDAR CREEK MUD | TX1070190 | 24,414 | Surface water | 2 | Below all study benchmarks |
| WEST GREGG SUD | TX0920022 | 5,127 | Ground water | 4 | Below all study benchmarks |
| WEST HARDIN WSC | TX1000055 | 4,630 | Ground water | 3 | Below all study benchmarks |
| WEST HARRIS COUNTY MUD 1 | TX1010925 | 1,581 | Ground water purchased | 1 | Below all study benchmarks |
| WEST HARRIS COUNTY MUD 10 | TX1012068 | 6,697 | Ground water | 2 | Below all study benchmarks |
| WEST HARRIS COUNTY MUD 2 CHASE | TX1011029 | 6,921 | Ground water | 1 | Below all study benchmarks |
| WEST HARRIS COUNTY MUD 6 | TX1011258 | 3,435 | Ground water | 1 | Below all study benchmarks |
| WEST HARRIS COUNTY MUD 7 | TX1012228 | 5,289 | Ground water | 1 | Below all study benchmarks |
| WEST HARRIS COUNTY MUD 9 | TX1011798 | 5,961 | Ground water | 1 | Below all study benchmarks |
| WEST JEFFERSON COUNTY MWD | TX1230021 | 9,367 | Surface water | 1 | Below all study benchmarks |
| WEST MEMORIAL MUD | TX1010540 | 4,182 | Ground water | 2 | Below all study benchmarks |
| WEST TRAVIS COUNTY PUBLIC UTILITY AGENCY | TX2270235 | 35,664 | Surface water | 1 | Below all study benchmarks |
| WEST WISE SUD | TX2490016 | 3,909 | Surface water | 2 | Below all study benchmarks |
| WESTADOR MUD | TX1010277 | 5,337 | Surface water purchased | 1 | Below all study benchmarks |
| WESTERN CASS WSC | TX0340066 | 5,871 | Ground water | 6 | Below all study benchmarks |
| WESTERN PINES MHP | TX1011714 | 1,170 | Ground water | 1 | Below all study benchmarks |
| WESTLAKE MUD 1 | TX1010635 | 3,909 | Ground water | 1 | Below all study benchmarks |
| WICKSON CREEK SUD | TX0210005 | 15,000 | Ground water | 3 | Below all study benchmarks |
| WICKSON CREEK SUD GRIMES COUNTY | TX0930003 | 4,843 | Ground water | 2 | Below all study benchmarks |
| WILDWOOD MOBILE HOME VILLAGE | TX1520046 | 577 | Ground water | 2 | Below all study benchmarks |
| WILLIAMSON COUNTY MUD 10 | TX2460145 | 3,513 | Surface water purchased | 1 | Below all study benchmarks |
| WILLIAMSON COUNTY WSID 3 | TX2460152 | 8,265 | Ground water purchased | 1 | Below all study benchmarks |
| WILLIAMSON TRAVIS COUNTY MUD 1 | TX2460120 | 5,793 | Surface water purchased | 1 | Below all study benchmarks |
| WIMBERLEY WSC | TX1050018 | 5,334 | Ground water | 3 | Below all study benchmarks |
| WINDERMERE COMMUNITY | TX2270161 | 21,231 | Surface water purchased | 5 | At or above a study benchmark |
| WINKLER WSC | TX1750023 | 1,344 | Surface water | 1 | Below all study benchmarks |
| WOODBINE WSC | TX0490018 | 7,689 | Ground water | 9 | Below all study benchmarks |
| WOODLAND HILLS | TX0610084 | 114 | Ground water | 1 | Below all study benchmarks |
| WOODRIDGE MUD | TX1700859 | 2,550 | Ground water purchased | 1 | Below all study benchmarks |
| YANCEY WSC | TX1630021 | 12,186 | Ground water | 4 | Below all study benchmarks |
| YAUPON COVE | TX1870017 | 1,000 | Ground water | 2 | Below all study benchmarks |
What is included
Each active community water system with enough required samples for a yearly average is counted once, even if it is linked with several ZIP codes. This does not mean every home was tested. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system. This page does not apply Texas's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.