1) AMERICAN WILD HORSE CONSERVATION - FORMERLY AMERICAN WILD HORSE CAMPAIGN

2) BIOLAB HOLDINGS, INC.

3) ENVIRONMENTAL DEFENSE ACTION FUND

4) LOWER SANTA CRUZ RIVER ALLIANCE

5) PINAL COUNTY

6) RACY & ASSOCIATES (ON BEHALF OF PIMA COUNTY)

1) BUCKSKIN SANITARY DISTRICT

2) CITY OF BUCKEYE (ARIZONA)

3) CITY OF COTTONWOOD

4) CITY OF DOUGLAS, ARIZONA

5) CITY OF FLAGSTAFF

6) CITY OF GLOBE, ARIZONA

7) CITY OF GOODYEAR (ARIZONA)

8) CITY OF KINGMAN

9) CITY OF MARICOPA

10) CITY OF SOMERTON (AZ)

11) CITY OF TOLLESON

12) CITY OF WILLISTON (ND)

13) CITY OF WINSLOW

14) COCONINO COUNTY

15) DOUGLAS COUNTY

16) DOUGLAS COUNTY SEWER DISTRICT NO. 1

17) GRAND RIVER BANDS OF OTTAWA INDIANS

18) HUDBAY MINERALS INC.

19) HYDRONALIX, INC.

20) MOUNTAIN CAPITAL PARTNERS, LLC

21) NORTHERN ARIZONA INTERGOVERNMENTAL PUBLIC TRANSPORTATION AUTHORITY

22) PAGE UTILITY ENTERPRISES

23) PIMA COUNTY

24) SALT RIVER PROJECT

25) SANTA CRUZ COUNTY

26) TOWN OF SAHUARITA

27) TOWN OF SUPERIOR (ARIZONA)

28) TOWN OF TUSAYAN

29) TRI-CITY REGIONAL SANITARY DISTRICT

1) BUCKSKIN SANITARY DISTRICT

2) CITY OF BUCKEYE (ARIZONA)

3) CITY OF COTTONWOOD

4) CITY OF DOUGLAS, ARIZONA

5) CITY OF FLAGSTAFF

6) CITY OF GLOBE, ARIZONA

7) CITY OF GOODYEAR (ARIZONA)

8) CITY OF KINGMAN

9) CITY OF MARICOPA

10) CITY OF SOMERTON (AZ)

11) CITY OF TOLLESON

12) CITY OF WILLISTON (ND)

13) CITY OF WINSLOW

14) COCONINO COUNTY

15) DOUGLAS COUNTY

16) DOUGLAS COUNTY SEWER DISTRICT NO. 1

17) GRAND RIVER BANDS OF OTTAWA INDIANS

18) HYDRONALIX, INC.

19) MOUNTAIN CAPITAL PARTNERS, LLC

20) NORTHERN ARIZONA INTERGOVERNMENTAL PUBLIC TRANSPORTATION AUTHORITY

21) PAGE UTILITY ENTERPRISES

22) PIMA COUNTY

23) SALT RIVER PROJECT

24) SANTA CRUZ COUNTY

25) TOWN OF SAHUARITA

26) TOWN OF SUPERIOR (ARIZONA)

27) TOWN OF TUSAYAN

28) TRI-CITY REGIONAL SANITARY DISTRICT

1) BUCKSKIN SANITARY DISTRICT

2) CITY OF BUCKEYE (ARIZONA)

3) CITY OF COTTONWOOD

4) CITY OF DOUGLAS, ARIZONA

5) CITY OF FLAGSTAFF

6) CITY OF GLOBE, ARIZONA

7) CITY OF GOODYEAR (ARIZONA)

8) CITY OF KINGMAN

9) CITY OF MARICOPA

10) CITY OF SOMERTON (AZ)

11) CITY OF TOLLESON

12) CITY OF WILLISTON (ND)

13) CITY OF WINSLOW

14) COCONINO COUNTY

15) DOUGLAS COUNTY

16) DOUGLAS COUNTY SEWER DISTRICT NO. 1

17) GRAND RIVER BANDS OF OTTAWA INDIANS

18) HUDBAY MINERALS INC.

19) HYDRONALIX, INC.

20) MOUNTAIN CAPITAL PARTNERS, LLC

21) NORTHERN ARIZONA INTERGOVERNMENTAL PUBLIC TRANSPORTATION AUTHORITY

22) PAGE UTILITY ENTERPRISES

23) PIMA COUNTY

24) SALT RIVER PROJECT

25) SANTA CRUZ COUNTY

26) TOWN OF SAHUARITA

27) TOWN OF SUPERIOR (ARIZONA)

28) TOWN OF TUSAYAN

29) TRI-CITY REGIONAL SANITARY DISTRICT

1) CITY OF TUCSON

2) CITY OF TUCSON WATER DEPARTMENT

3) PIMA COUNTY COMMUNITY COLLEGE DISTRICT