| HANNA, TOWN OF | HANNA, WY | 841 | 25 | — |
| DAYTON, TOWN OF | DAYTON, WY | 824 | 77 | — |
| WY DOT-BITTER CREEK WEST RA | ROCK SPRINGS, WY | 801 | 6 | — |
| COWLEY, TOWN OF | COWLEY, WY | 800 | 47 | — |
| ALCOVA LAKE PARK TRAILER VILLAGE | MILLS, WY | 800 | 10 | — |
| BEDFORD WATER & SEWER DISTRICT | BEDFORD, WY | 750 | 22 | — |
| HERITAGE VILLAGE SUBDIVISION | GILLETTE, WY | 750 | 18 | — |
| WY DOT-WAGONHOUND REST AREA | LARAMIE, WY | 750 | 20 | — |
| FOOTHILLS MOBILE HOME PARK | GILLETTE, WY | 735 | 1 | — |
| GREATER SMOOT W&S DISTRICT | SMOOT, WY | 720 | 56 | — |
| BRUSH CREEK RANCH | SARATOGA, WY | 717 | 100 | — |
| TATA CHEMICALS SODA ASH PARTNERS, LLC | GREEN RIVER, WY | 701 | 229 | — |
| SKYLINE VILLAGE MOBILE HOME PK | LITTLETON, WY | 700 | 34 | — |
| EASTVIEW MANUFACTURED HOME COMMUNITY | GILLETTE, WY | 688 | 4 | — |
| VETERANS ADMINISTRATION MEDICAL CENTER | SHERIDAN, WY | 685 | 46 | — |
| WEST WINDS | CHEYENNE, WY | 663 | 31 | — |
| WY DOT-DWYER JUNCTION REST AREA | CASPER, WY | 650 | 1 | — |
| BIG COUNTRY ESTATES | CHEYENNE, WY | 615 | 16 | — |
| MHVC VISITORS CENTER | CASPER, WY | 612 | 4 | — |
| SALT CREEK WATER DISTRICT | NEWCASTLE, WY | 600 | 15 | — |
| BLACK THUNDER COAL MINE | WRIGHT, WY | 600 | 1 | Detected |
| GTNP-FLAGG RANCH | MOOSE, WY | 600 | 0 | — |
| BYRON, TOWN OF | BYRON, WY | 593 | 9 | — |
| HIGH MEADOW RANCH | PINEDALE, WY | 580 | 24 | Clean |
| MCDONALD'S (PREISS CORPORATION) | CHEYENNE, WY | 575 | 9 | — |
| TRAVEL CENTERS OF AMERICA-FT. BRIDGER | EVANSTON, WY | 570 | 25 | — |
| JAMESTOWN-RIO VISTA W&S DISTRICT | GREEN RIVER, WY | 560 | 2 | — |
| NAVAJO TRANS ENRG. CO., LLC (CORDERO) | GILLETTE, WY | 550 | 4 | — |
| NAVAJO TRANS ENGR CO., LLC (ANTELOPE) | GILLETTE, WY | 550 | 3 | — |
| BROKEN WHEEL TRUCK STOP | DOUGLAS, WY | 540 | 212 | — |
| COKEVILLE, TOWN OF | COKEVILLE, WY | 535 | 241 | — |
| FARSON EDEN SCHOOL | ROCK SPRINGS, WY | 530 | 63 | — |
| LDS-BUFFALO RIDGE CHURCH | MANASSA, WY | 530 | 57 | — |
| ANTELOPE BUTTE SKI AREA | SHELL, WY | 527 | 20 | — |
| LITTLE AMERICA HOTELS & RESORTS CHEYENNE | CHEYENNE, WY | 525 | 18 | — |
| DEVILS TOWER KOA-CAMPSTOOL | DEVILS TOWER, WY | 516 | 36 | — |
| SHOSHONI, TOWN OF | SHOSHONI, WY | 515 | 73 | — |
| HOGADON SKI AREA | CASPER, WY | 504 | 17 | — |
| GRAND TETON PARK RV RESORT | MORAN, WY | 502 | 81 | — |
| WAMSUTTER, TOWN OF | WAMSUTTER, WY | 500 | 51 | — |
| CRESTVIEW ESTATES SUBDIVISION | GILLETTE, WY | 500 | 10 | — |
| WY DOT-MULE CREEK RA | SUNDANCE, WY | 500 | 4 | — |
| WY DOT-SWEETWATER REST AREA | BASIN, WY | 500 | 6 | — |
| BUFFALO BILL DAM VISITOR CENTER | CODY, WY | 500 | 13 | — |
| LDS AUBURN/GROVER/MEADOWS MEETINGHOUSE | MONTPELIER, WY | 500 | 4 | — |
| MUNGER MOUNTAIN ELEMENTARY SCHOOL | JACKSON, WY | 500 | 49 | — |
| GTNP-GROS VENTRE CG | MOOSE, WY | 500 | 0 | — |
| PINE HAVEN, TOWN OF | GILLETTE, WY | 498 | 83 | — |
| PUB PLACE | JACKSON, WY | 497 | 233 | — |
| YNP-TOWER FALL CG | YELLOWSTONE NATIONAL PARK, WY | 495 | 2 | — |