1) Bandera, Uvalde, Medina & Real County - Utopia Vanderpool Area ESD No. 1

2) Bastrop County Emergency Services District No. 2

3) Bastrop-Travis Counties Emergency Services District No. 1

4) Bell County Emergency Services District No. 1

5) Bexar County Emergency Services District No. 11

6) Bosque County Emergency Services District No. 1

7) Burnet County Emergency Services District No. 7

8) Crane County Emergency Services District #1

9) Ector County Utility District

10) Ellis County Emergency Services District #1

11) Ellis County Emergency Services District No. 2

12) Ellis County Emergency Services District No. 4

13) Ellis County Emergency Services District No. 5

14) Ellis County Emergency Services District No. 6

15) Ellis County Emergency Services District No. 9

16) Hays County Emergency Services District No. 4

17) Hays County Emergency Services District No. 5

18) Hays County Emergency Services District No. 9

19) Henderson County Emergency Services District No. 8

20) Hill County Emergency Services District No. 2

21) Hudspeth County Emergency Services District No. 2

22) Jasper County Emergency Services District No. 1

23) Jim Wells County Emergency Services District No. 1

24) Jonah Water Special Utility District

25) Kaufman County Emergency Services District #7

26) Kaufman County Emergency Services District No. 3

27) Kaufman County Emergency Services District No. 6

28) Lake Pointe Municipal Utility District

29) Llano County Emergency Services District No. 2

30) Medina County Emergency Services District No. 6

31) Midland County Utility District

32) Multi-County Water Supply Corporation

33) North Hays County Emergency Services District No. 1

34) Palo Pinto County Emergency Services District No. 1

35) Real County Emergency Services District No. 1

36) Riverside Special Utility District

37) Southwest Leon County Emergency Services District No. 2

38) Tanglewood Forest Limited District

39) Texas Section of the American Water Works Association

40) Texas State Association of Fire and Emergency Services Districts

41) Texas Water Utility Association

42) Travis County Emergency Services District No. 16

43) Travis County Emergency Services District No. 2

44) Travis County Emergency Services District No. 8

45) Travis County Municipal Utility District No. 22

46) Travis County Water Control & Improvement District No. 10

47) Upshur County Emergency Services District No. 1

48) Uvalde County Emergency Services District No. 2

49) Williamson County Emergency Services District No. 1

50) Williamson County Emergency Services District No. 11

51) Williamson County Emergency Services District No. 12

52) Williamson County Emergency Services District No. 3

53) Williamson County Emergency Services District No. 4

54) Williamson County Emergency Services District No. 5

55) Williamson County Emergency Services District No. 6

56) Williamson County Emergency Services District No. 7