| ARIZONA WATER CO - PINAL VALLEY | 134,432 | 590 | Detected |
| EPCOR - SAN TAN | 87,435 | 367 | Detected |
| GW SANTA CRUZ WATER CO | 84,000 | 256 | Detected |
| ARIZONA WATER CO - APACHE JUNCTION | 62,055 | 88 | Detected |
| LAGO DEL ORO WATER COMPANY | 18,132 | 777 | Detected |
| FLORENCE WATER COMPANY | 15,900 | 272 | Detected |
| APACHE JUNCTION WATER DISTRICT | 15,610 | 694 | Detected |
| ARIZONA WATER CO - ORACLE | 10,585 | 18 | Detected |
| EPCOR - SAN TAN ANTHEM | 10,362 | 55 | Detected |
| CCA - ELOY COMPLEX | 8,852 | 196 | Detected |
| ELOY CITY OF | 7,903 | 313 | Detected |
| ARIZONA WATER CO - SAN MANUEL | 4,748 | 38 | Detected |
| ARIZONA WATER CO - SUPERIOR | 4,393 | 158 | Detected |
| ADOC EYMAN UNIT | 3,969 | 865 | Detected |
| GW SANTA CRUZ WATER CO - RED ROCK | 3,813 | 32 | — |
| GOODMAN WATER COMPANY | 2,656 | 53 | — |
| PICACHO WATER COMPANY | 2,440 | 70 | — |
| THUNDERBIRD FARMS DWID | 2,231 | 484 | — |
| KEARNY TOWN OF | 1,950 | 158 | — |
| ARIZONA WATER CO - TIERRA GRANDE | 1,796 | 23 | — |
| QUEEN VALLEY DWID | 1,200 | 182 | — |
| MAMMOTH TOWN OF | 1,181 | 153 | — |
| GW SANTA CRUZ WATER - MARICOPA SW | 1,170 | 2 | — |
| COPPER MOUNTAIN RANCH CFD | 1,071 | 370 | Detected |
| ADOC FLORENCE ASP | 1,001 | 699 | Detected |
| AWC - CASA GRANDE WEST WATER COMPANY | 943 | 391 | — |
| MARICOPA CONSOLIDATED DWID | 928 | 141 | — |
| PINAL COUNTY JUSTICE COMPLEX | 820 | 19 | — |
| ARIZONA WATER CO - STANFIELD | 639 | 88 | — |
| TONTO BASIN WATER - CACTUS FOREST | 613 | 84 | — |
| SUN VALLEY FARMS UNIT VI | 600 | 268 | — |
| DESERT GARDENS RV RESORT CO-OP, INC | 532 | 110 | — |
| PAPAGO BUTTE DWID | 530 | 629 | — |
| TOWN OF FLORENCE - RODEO WELL | 500 | 0 | — |
| SILVER BELL ARMY HELIPORT | 500 | 144 | — |
| ARIZONA TRAINING PROGRAM | 470 | 812 | — |
| MARICOPA MOUNTAIN DWID 1 | 450 | 476 | — |
| GOLDFIELD GHOST TOWN | 450 | 11 | — |
| PARK WATER COMPANY INC | 416 | 177 | — |
| VALLE ESCONDIDO | 405 | 105 | — |
| MARANA AEROSPACE SOLUTIONS | 400 | 198 | — |
| PICACHO PEAK RV RESORT | 400 | 53 | — |
| SILVERBELL IRRIGATION & DRAINAGE DIST | 375 | 266 | — |
| SKYLINE RESORT RV PARK | 375 | 221 | — |
| PICACHO DWID | 340 | 471 | — |
| JO COMBS ELEMENTARY SCHOOL | 325 | 205 | — |
| RESOLUTION COPPER COMPANY | 300 | 138 | — |
| VILLA GRANDE DWID | 283 | 459 | — |
| SUNLAND WATER COMPANY | 227 | 149 | — |
| ARIZONIAN RV RESORT | 225 | 122 | — |