| ACME WATER COMPANY | | | | 880 | Ground water | 6065 N 4600 W
BEAR RIVER, UT 84301 | 435-279-1044 | | Box Elder |
| ADELAIDE CAMPGROUND | | | | 150 | Ground water | 115 E 900 N
RICHFIELD, UT 84701 | 435-979-1854 | | Millard |
| ALBION BASIN CAMPGROUND | | | | 210 | Ground water | 857 W SOUTH JORDAN PARKWAY
SOUTH JORDAN, UT 84095 | 801-999-2103 | | Salt Lake |
| ALFS INN | | | | 600 | Ground water | PO BOX 8007
ALTA, UT 84092 | 801-359-1078 | | Salt Lake |
| ALLARD RANCH WATER CO | | | | 30 | Ground water | 3383 W. Allard Ranch Drive
SUMMIT, UT 84772 | 435-592-9316 | | Iron |
| ALPINE CITY | | | | 10,200 | Ground water | 5626 South 4800 West
SPANISH FORK, UT 84660 | 801-756-6347 | | Utah |
| ALPINE COVE WATER SSD | | | | 230 | Ground water | 898 S State Street
OREM, UT 84097 | 801-225-6040 | | Utah |
| ALTA TOWN WATER SYSTEM | | | | 5,228 | Ground water | PO BOX 8016
ALTA, UT 84092 | 801-742-6011 | | Salt Lake |
| ALTON TOWN WATER SYSTEM | | | | 136 | Ground water | P.O Box 100781
ALTON, UT 85710 | 436-648-2635 | | Kane |
| AMALGA TOWN WATER SYSTEM | | | | 495 | Ground water | 8181 North 2400 West
AMALGA, UT 84335 | 435-770-1210 | | Cache |
| AMERICAN FORK CITY | | | | 39,045 | Ground water | 106 E 750 S
LEHI, UT 84043 | 801-763-3060 | | Utah |
| AMERICAN PACIFIC | | | | 150 | Ground water | 3880 W 1300 N
CEDAR CITY, UT 84721 | 435-865-5063 | | Iron |
| ANDERSON COVE CAMPGROUND | | | | 320 | Purchased ground water under influence of surface water source | 857 W SOUTH JORDAN PARKWAY
SOUTH JORDAN, UT 84095 | 801-999-2103 | | Weber |
| ANDERSON MEADOW CAMPGROUND | | | | 30 | Ground water | 115 E 900 N
RICHFIELD, UT 84701 | 435-979-1854 | | Beaver |
| ANGELL SPRINGS SSD | | | | 358 | Ground water | P.O BOX 461234
LEEDS, UT 84746 | 435-256-6297 | | Washington |
| ANNABELLA TOWN WATER SYSTEM | | | | 860 | Ground water | 151 West 200 South
ANNABELLA, UT 84711 | 801-709-9428 | | Sevier |
| ANTELOPE FLAT CAMPGROUND | | | | 139 | Ground water | 355 N VERNAL AVE
VERNAL, UT 84078 | 435-781-5107 | | Daggett |
| ANTELOPE ISLAND RANCH | | | | 50 | Ground water | 4528 West 1700 South
SYRACUSE, UT 84075 | 435-720-0331 | | Davis |
| ANTIMONY TOWN WATER SYSTEM | | | | 135 | Ground water | 146 W Montgomery Lane
HARRISVILLE, UT 84414 | 435-616-2569 | | Garfield |
| ARCHES NATIONAL PARK HQ | | | | 116 | Ground water | 2282 Resource Blvd
MOAB, UT 84532 | 435-259-4712 | | Grand |
| ARCHES NP-DEVILS GARDEN | | | | 191 | Ground water | 2282 Resource Blvd
MOAB, UT 84532 | 435-259-4712 | | Grand |
| ARROWHEAD INVESTMENT INC | | | | 80 | Ground water | PO BOX 697
BEAVER, UT 84713 | 435-438-2591 | | Beaver |
| ASH GROVE CEMENT COMPANY | | | | 105 | Ground water | PO Box 38069
LEAMINGTON, UT 84638 | 435-857-1345 | | Juab |
| ASHLEY VALLEY WATER AND SEWER ID | | | | 13,835 | Surface water | HC 67 Box 8
TRIDELL, UT 84076 | 435-545-5035 | | Uintah |
| ASI WELL | | | | 250 | Ground water | 990 N 8000 W
MENDON, UT 84325 | 435-757-0440 | | Cache |