| Name of Entity | Status | PWS# | Contact Name | Address | Town | ZIP | Phone | Date Received |
| Afton | Municipality/Town | 5600002C | Larry Lancaster | PO Box 310 | Afton | 83110 | 307-885-9698 | 8/14/2007 |
| Air Base Acres Improvement & Service District | Consecutive Water System of Casper | 5600080C | Fremen Spence, Chair | 2814 Burris | Casper | 82644 | 307-472-5435 | 10/2/2007 |
| Airport Bench Water and Sewer District | District | 5601385C | Melina McIntosh | PO Box 105 | Greybull | 82426 | 307-765-2862(Home) | 11/2/2007 |
| Albin | Municipality/Town | 5600189C | Kelly Krakow | PO Box 188 | Albin | 82050 | 307-246-3243 | 12/14/2001 |
| Alpine | Municipality/Town | 5600156C | Val Jensen | P.O. Box 3070 | Alpine | 83128 | 307-654-7754 | 10/24/2007 |
| Alta Community Pipeline | Other | 5600275C | Warren Kaufman | 250 E. Dry Creek RD | Alta | 83414 | 208-351-0763 | 9/19/2007 |
| American Road WD | District | 5600968C | Steve Bruce | PO Box 2874 | Gillette | 82717 | 307-686-2252 | 1/4/2002 |
| Antelope Valley Improvement & Sewer District | Improvement & Sewer District | 5600251C | Mike Zmiennski | PO Box 2787 | Gillette | 82717 | 307-660-5486 | 9/10/2007 |
| Aspen/Aspen II | District | 5600220C | Greg Olson | PO Box 25201 | Jackson | 83001 | 307-739-9777 | 12/13/2001 |
| Avalon Mobile Manor | Mobile Home Park | 5600266C | Greg Brown | 429 Gardenia | Cheyenne | 82009 | 9/21/2007 | |
| Baggs | Municipality/Town | 5600058C | Michelle Christopher | PO Box | Baggs | 82321 | 307-383-2888 | 8/13/2007 |
| Bairoil | Municipality/Town | 560000C | Tony Rigano | PO Box 58 | Bairoil | 82322 | 307-324-7653 | 2/1/2000 |
| Basin | Municipality/Town | 5600004C | Mike Dellos | PO Box 599 | Basin | 82410 | 307-568-3331 | 12/31/2001 |
| Bear River | Municipality/Town | 5601019C | Robin Rhodes | 81 Elk Dr. | Bear River | 82930 | 307-789-2800 | 7/21/2004 |
| Bedford Water & Sewer District | District | 5600006C | Bart Barge | PO Box 4294 | Bedford | 83112 | 307-883-3706 | 8/14/2007 |
| Belle Fourche Pipeline | Company | 5601156C | Renee Taylor | PO Drawer 2360 | Casper | 82602 | 307-266-0260 | 6/14/2004 |
| Big Piney | Municipality/Town | 5600007C | Vicki Brown | PO Box 70 | Big Piney | 83113 | 307-276-5773 | 6/28/2004 |
| Big Valley & Crossed Arrows Improvement District | Special District | 5601193C | Donna Guelde | PO Box 276 | Meeteetse | 82133 | 307-868-2146 | 10/30/2007 |
| Black Hills Power & Light | Private | 5600038C | Dennis Roeber | PO Box 315 | Osage | 82723 | 307-465-2262 | 10/3/2001 |
| Bridger Valley JPB | JPB | 5600757C | LaDona Bugus | PO Box 615 | Mtn View | 82939 | 307-782-3130 | 10/5/2001 |
| Buffalo | Municipality/City | 5600005C | Burt Allgood | 46 N Main St. | Buffalo | 82834 | 307-684-5566 | 6/16/2004 |
| Buffalo Valley Water District | District | 5600435C | LaVar H Riniker | PO Box 625 | Moran | 83013 | 307-543-2389 | 11/19/2007 |
| Burlington | Municipality/Town | 5601098C | Bruce Dooley | PO Box 38 | Burlington | 82411 | 307-762-3502 | 8/28/2007 |
| Burns | Municipality/Town | 5600188C | Joe Gracik | PO Box 24 | Burns | 82053 | 307-547-2250 | 11/19/2001 |
| Byron | Municipality/Town | 5600008C | Ty McConnell | PO Box 5 | Byron | 82412 | 307-548-7490 | 6/14/2004 |
| Cambria I&S | District | 5601028C | Betty Anna Rumney | 23303 US 85 | Newcastle | 82701 | 307-746-2509 | 6/14/2004 |
| Casper | Muncipality/City | 5601415C | David W. Hill | 200 North David Street | Casper | 82601 | 307-235-8213 | 10/11/2007 |
| Cedar Hills WC | Company | 5600780C | Aaron Kitchel | PO Box 5030 | Gillette | 82717 | 307-682-0709 | 9/16/1999 |
| Centennial WSD | District | 5601232C | Carol Cook Turner | PO Box 185 | Centennial | 82055 | 307-742-9712 | 7/21/2004 |
| Central Campbell County Improvement & Service District | District | 5600764C | Duane Faucet | Gillette | 10/26/2007 | |||
| Cheyenne | Muncipality/City | 5600011C | Herman Noe | PO Box 1469 | Cheyenne | 82003 | 307-637-6416 | 8/28/2007 |
| Chugwater | Municipality/Town | 5600200C | Steve Kelley | PO Box 243 | Chugwater | 82210 | 307-422-3493 | 9/19/2007 |
| Clearmont | Municipality/Town | 5600013C | John Christian or Annalea Redding | PO Box 127 | Clearmont | 82835 | 307-758-4465 | 11/19/2007 |
| Clearview I&S | District | 5600091C | Linda Reynolds | PO Box 2634 | Rock Springs | 82902 | 307-362-1140 | 10/11/2001 |
| Cody | Muncipality/City | 5600207C | Keith Viles | P.O. Box 2200 | Cody | 82414 | 307-587-2958 | 10/5/2007 |
| Cokeville | Municipality/Town | 5600015C | Kevin Walker | Box 99 | Cokeville | 83114 | 307-279-3227 | 11/9/2007 |
| Cook Road | District | 5601399C | Paul Tomer | 6933 Red Rock Dr. | Gillette | 82716 | 307-682-8656 | 10/2/2001 |
| Cooper Subdivision Mobile Home Park | Mobile Home Park | 5601450C | John Pinter | 788 Ridge Rd. | Powell | 82435 | 307-202-1260 | 9/12/2007 |
| Country Side Court | Private Company | 5600756C | Jerry McKenna | Box 2974 | Mills | 82644 | 307-265-0925 | 9/5/2007 |
| Countryside Water Users Inc. | Private Company | 5600192C | Jerri Thatcher | PO Box 1166 | Gillette | 82717 | 307-682-4197 | 10/5/2007 |
| County Meadows LLC | Private Company | 5600162C | Jack Crawford | 4746 E. Skyline Dr. | Laramie | 82070 | 307-742-6356 | 8/28/2007 |
| Cowley | Municipality/Town | 5600206C | Nathan P. Sponsel | 81 E Main St. | Cowley | 82420 | 307-548-6799 | 9/11/2007 |
| Crestview | District | 5600853C | Steve Bruce | PO Box 194 | Gillette | 82717 | 307-686-2252 | 10/5/2001 |
| Dayton | Municipality/Town | 5600206C | Johann Nield, Director of Public Works | PO Box 100 | Dayton | 82836 | 307-655-2217 | 9/19/2007 |
| Deaver | Municipality/Town | 5600016C | Craig Sorenson | PO Box 207 | Deaver | 82421 | 307-664-2736 | 2/15/2002 |
| Dillman Estate Homeowners Association | Homeowners Association | 5601248C | Jerry Canaday | PO Box 697 | Torrington | 82240 | 307-532-2261 | 9/10/2007 |
| Dixon | Municipality/Town | 5600059C | Janice Ward | 975 4th St. | Dixon | 82323 | 307-383-2555 | 6/24/2004 |
| Douglas | Muncipality/City | 5600137C | Joshua M. Oberlander | 420 W. Grant | Douglas | 82633 | 307-358-9750 | 10/30/2007 |
| Dubois | Municipality/Town | 5600177C | Arvin Miller | PO Box 555 | Dubois | 82513 | 307-455-2292 | 9/10/2007 |
| East Thermopolis | Municipality/Town | 5600226C | Michael W. Ready | 112 East Warren St. | Thermopolis | 82443 | 307-864-9221 | 10/25/2007 |
| Edgerton | Municipality/Town | 5600017C | Dale Miller | PO Box 407 | Edgerton | 82635 | 307-437-6763 | 8/28/2007 |
| Eight Mile Subdivision | District | 5600829C | Duaine Faucett | 507 Force Road | Gillette | 82716 | 307-685-4230 | 2/22/2002 |
| Elk Mountain | Municipality/Town | 5600065C | Judy Christopherson | PO Box 17 | Elk Mountain | 82324 | 307-348-7388 | 10/26/2007 |
| Encampment | Municipality/Town | 5600060C | William Craig | PO Box 5 | Encampment | 82325 | 307-329-6922 | 9/11/2007 |
| Etna | Municipality/Town | 5600157C | John Bateman | PO Box 5053 | Etna | 83118 | 307-883-2454 | 10/5/2001 |
| Evanston | Muncipality/City | 5600150C | R. Allan Hansen | 1200 Main St. | Evanston | 82930 | 307-783-6450 | 11/12/2007 |
| Evansville | Municipality/Town | 5600018C | Tom Lye | 235 Curtis Street | Evansville | 82636 | 307-234-9678 | 11/2/2007 |
| Evergreen Mobile Home Park LLC | Private Company | 5600021C | Molly Hutchins | 3542 Cody Lane | Cheyenne | 82009 | 307-631-5833 | 8/24/2007 |
| Fairview WSD | District | 5600166C | Deborah Miller | PO Box 40 | Fairview | 83110 | 307-886-9077 | 10/15/2001 |
| Force Road JPB | JPB | 5600148C | Clyde Owen | 202 Warren Ave | Gillette | 82716 | 307-686-0705 | 11/8/2001 |
| Fort Laramie | Municipality/Town | 5600085C | Jim Williams | PO Box 177 | Fort Laramie | 82212 | 307-837-2711 | 6/29/2004 |
| Frannie | Municipality/Town | 5600210C | Terry Moore | P.O. Box 72 | Frannie | 82423 | 307-664-2323 | 10/24/2007 |
| Freedom WSD | District | 5600158C | Reed Holbrook | PO Box 244 | Freedom | 83120 | 6/14/2004 | |
| Gardens North Homeowners | Home Owners Association | 5600774C | Jerry Lower | PO Box 1104 | Riverton | 82501 | 307-856-8766 | 7/21/2004 |
| Gillette | Municipality/City | 5600019C | Tara Schultz | PO Box 3003 | Gillette | 82717 | 307-686-5326 | 6/21/2004 |
| Glendo | Municipality/Town | 5600231C | Brenda Hagen | Box 396 | Glendo | 82213 | 307-735-4242 | 11/2/2007 |
| Glenrock | Municipality/Town | 5600199C | Dave Eason | PO Box 417 | Glenrock | 82637 | 307-436-9294 | 10/3/2001 |
| GR/RS/SW Co. Joint Powers Water Board | JPB | 5600050C | Ben Bracken | P.O. Box 1299 | Green River | 82935 | 307-875 - 4317ext. 2 | 9/11/2007 |
| Grand View WC | Company | Grand View Secretary | 00 Gerber Lane | Cody | 82414 | 307-527-9866 | 7/6/2004 | |
| Granger | Municipality/Town | 5600020C | Duane Tyler | 215 2nd St | Granger | 82934 | 307-875-5556 | 2/1/2002 |
| Greater Smoot WSD | District | 5601937C | Ernie Sainz | PO Box 76 | Smoot | 83126 | 307-886-5608 | 12/9/1999 |
| Green River | Municipality/Town | 5601181C | Karl Williams | 50 E. 2nd North | Green River | 82935 | 307-872-0535 | 7/21/2004 |
| Green Valley Estates I&S | District | 5601245C | Cheryl White | 111 Arrow Dr. | Gillette | 82716 | 307-686-2442 | 7/29/2004 |
| Greybull | Municipality/Town | 5600022C | Randy Rumpler | P.O. Box 271 | Greybull | 82426 | 307-765-2682 | 10/1/2007 |
| Gros Ventre Utility | Company | 5600027C | Jon Pinardi | 5000 Spring Gulch Rd | Jackson | 83001 | 307-734-3855 | 6/14/2004 |
| Grover W&S | District | 5600160C | Dawn Astle | PO Box 146 | Grover | 83122 | 307-886-9298 | 6/10/2004 |
| Guernsey | Municipality/Town | 5600023C | Gary Fresorger | PO Box 667 | Guernsey | 82214 | 307-836-2335 | 7/30/2004 |
| Hanna | Municipality/Town | 5600025C | Paul Cruz | PO Box 99 | Hanna | 82327 | 307-325-9424 | 11/2/2007 |
| Happy Valley Pipe Line Company | Private Company | 5600153C | Vernon R Lancaster | 2601 Dry Creek RD | Afton | 83110 | 307-886-3202 | 8/28/2007 |
| Hartville | Municipality/Town | 5600186C | Robert Blaise | PO Box A | Hartville | 82215 | 307-836-2288 | 7/21/2004 |
| Heritage Village Water & Sewer | District | 5600249C | Jerry Hunt | PO Box 260 | Upton | 82730 | 307-468-2427 | 8/13/2007 |
| Hudson | Municipality/Town | 5600183C | ROB WEST | PO BOX 56 | HUDSON | 82515 | 307-332-3605 | 9/19/2007 |
| Hulett | Municipality/Town | 5600026C | Mike Laarman | P.O. Box 278 | Hulett | 82720 | 307-467-5771 | 10/31/2007 |
| Hyatville WC | Company | 5600209C | June Booth | PO Box 105 | Hyatville | 82428 | 307-469-2229 | 7/14/2004 |
| Indian Paintbrush HA | HomeOwners Association | 5600758C | Peter Carman | Box 686 | Wilson | 83014 | 307-734-9130 | 8/18/2007 |
| Jackson | Municipality/Town | 5600213c | Clayton Corsi | P.O. Box1687 | Jackson | 83001 | 307-733-3079 | 9/19/2007 |
| Juby's Mobile Home Park | Private Company | 5601496C | Tony Sovenson | 938 19th St. | Cody | 82414 | 307-899-0576 | 8/28/2007 |
| Kaycee | Municipality/Town | 5600196C | Diana Cornthwaite | Kaycee | Kaycee | 82639 | 307-738-2301 | 10/23/2007 |
| Kemmerer-Diamondville JPB | JPB | 5600028C | Barry E. Mootz | PO Box 1020 | Kemmerer | 83101 | 307-877-2261 | 7/14/2004 |
| Kirby | Municipality/Town | 5600236C | Earnest Slagle | PO Box 78 | Kirby | 82430 | 307-864-9383 | 7/15/2004 |
| LaBarge | Municipality/Town | 5600222C | Tom James | PO Box 327 | LaBarge | 83123 | 307-386-2755 | 9/27/1999 |
| LaGrange | Municipality/Town | 5600788C | Cathy Stoddard | PO Box 185 | LaGrange | 82221 | 307-834-2466 | 6/8/2004 |
| Lance Creek WSD | District | 5600109C | Jack Hammond | PO Box 26 | Lance Creek | 82222 | 307-334-2457 | 2/8/2002 |
| Lander | Muncipality/City | 5600176C | Mickey Simmons | 240 Lincoln St. | Lander | 82520 | 307-332-3956 | 8/28/2007 |
| Laramie | Muncipality/City | 5600029C | Linda Cope | Po Box C | Laramie | 82073 | 307-721-5281 | 11/1/2007 |
| Lingle | Municipality/Town | 5600030C | Mike Flock | P O Box 448 | Lingle | 82223 | 307-837-2416 | 8/31/2007 |
| Lost Springs | Municipality/Town | Leda Price, Mayor | PO Box 116 | Lost Springs | 82224 | 307-334-3268 | 11/1/2001 | |
| Lovell | Municipality/Town | 5600031C | Ed Allred | PO Box 188 | Lovell | 82431 | 307-548-6551 | 10/11/2007 |
| Lower Bench WSD | District | 5601031C | Stan Glazner | PO Box 412 | Lyman | 82937 | 307-786-2955 | 12/20/2001 |
| Lucerne Water and Sewer District | Consecutive Water Systems | 5600935C | Anthony Day | 918 Nakamura Lane | Thermopolis | 82443 | 307-864-5659 | 8/28/2007 |
| Lusk | Municipality/Town | 5600032C | Todd Skrukrud | PO Box 390 | Lusk | 82225 | 307-334-3612 | 6/10/2004 |
| Lyman | Municipality/Town | 5600033C | Andrew Spray | PO Box 300 | Lyman | 82937 | 307-787-6595 | 6/25/2004 |
| Manderson | Municipality/Town | 5600204C | Lynnette McClure | PO Box 96 | Manderson | 82432 | 307-568-2680 | 7/26/2004 |
| Manville | Municipality/Town | 5600110C | Fred Duran | Box 107 | Manville | 82227 | 307-797-1788 | 11/2/2007 |
| Marbleton | Municipality/Town | 5600223C | Lester Richey | 10700 Hwy 189 | Marbleton | 83113 | 307-276-3815 | 10/12/2007 |
| Means W&S | District | 5600760C | Bret Wolz | PO Box 3943 | Gillette | 82717 | 307-687-0372 | 6/10/2004 |
| Medicine Bow | Municipality/City | 5600034C | Carol Cook | PO Box 156 | Medicine Bow | 82329 | 307-379-2225 | 6/17/2004 |
| Meeteetse | Municipality/Town | 5600035C | Brian D. Linton | PO Box 38 | Meeteetse | 82433 | 307-868-2278 | 7/29/2004 |
| Midwest | Municipality/Town | 5600201C | Joe Sanders | PO Box 190 | Midwest | 82643 | 307-437-6513 | 12/3/2007 |
| Miller-Lower Mobile Home Park | Private Company | 5600051C | Fred Miller | 6414 N. College Ave | Cheyenne | 82009 | 307-634-3286 | 11/12/2007 |
| Mills | Municipality/City | 5600036C | John Carter | PO Box 789 | Mills | 82644 | 307-235-1378 | 6/21/2004 |
| Monroe Ave Mobile Home Park | Mobile Home Park | 5600179C | Tim Self | P.O. box1601 | Rock Springs | 82902 | 307-389-6186 | 11/2/2007 |
| Moorcroft | Municipality/Town | 5600037C | Ron Feehan | PO Box 70 | Moorcroft | 82721 | 307-756-2530 | 8/20/2007 |
| Mountain View | Municipality/City | 5600847C | David Dasher | PO Box 249 | Mountain View | 82939 | 307-782-3100 | 6/10/2004 |
| Mountain View estates | District | 5601270C | 8/22/2007 | |||||
| N. Riverton WSD | District | 5600173C | Pius Mathem | 609 Edith St. | Riverton | 82501 | 307-856-2463 | 7/29/2004 |
| Newcastle | Muncipality/City | 5600256C | Robert Hartley, PE | 10 west Warwick | Newcastle | 82701 | 307-746-3535 | 10/31/2007 |
| Newton Industrial Park I&SS | District | Les Hennings | PO Box 936 | Gillette | 82717 | 307-682-2400 | 8/13/2007 | |
| North Afton W&S | District | 5600155C | PO Box 1179 | Afton | 83110 | 1/22/2002 | ||
| North Platte WSD | District | 5600081C | Bruce English | PO Box 614 | Casper | 82602 | 307-237-1257 | 11/5/2001 |
| North Uinta County I&S | District | 5601019C | Clarence Kemp | 849 Front St. #201 | Evanston | 82930 | 307-789-6735 | 1/31/2000 |
| Northend Water Users | Company | 5600043C | Norm Meidinger | PO Box 551 | Powell | 82435 | 307-754-9805 | 9/2/2004 |
| Northwest Rural | District | 5601254C | Dossie Overfield | PO Box 2347 | Cody | 82414 | 307-527-4426 | 6/14/2004 |
| Opal | Municipality/Town | 5600835C | Ronda Deason | PO Box 130 | Opal | 83124 | 307-877-3919 | 8/14/2007 |
| Orchard Valley Water Co. | District | 5600012C | Frank Waters | 2209 S.3rd Av. | Cheyenne | 82007 | 307-632-0162 | 8/30/2007 |
| Osage Water District | District | Rod McMeeken | PO Box 83 | Osage | 82723 | 307-465-2472 | 10/15/2007 | |
| Osmond Pipeline | District | 5600154C | Reed Gardner | 83421 S. HWY 89 | Afton | 83110 | 307-885-5597 | 12/19/2001 |
| Pavillion | Municipality/Town | 5600039C | Larry Zoller | PO Box 278 | Pavillion | 82523 | 307-856-4431 | 9/6/2007 |
| Peoples I&S | District | 5600898C | Bruce Engineering - Luther Krupp | 118 S. Gillette Ave. | Gillette | 82716 | 307-686-2252 | 3/18/2002 |
| Pine Bluffs | Municipality/Town | 5600040C | Tom McDonough | Box 429 | Pine Bluffs | 82082 | 307-245-3746 | 8/14/2007 |
| Pine Haven | Municipality/Town | 5600191C | Dwayne Ellerton or Carol Thomas | 24 Waters Drive | Pine Haven | 82711 | 307-756-9807 | 11/2/2007 |
| Pinedale | Municipality/Town | 5600041C | Randy Hubbard | Box 709 | Pinedale | 82941 | 307-367-2348 | 8/17/2007 |
| Pioneer park Manufactured Home Community | Private Company | 5601173C | Ann Clayton | 1104 Wilderness Trail | Green River | 82935 | 307-875-2033 | 8/28/2007 |
| Pioneer WSD | District | 5600828C | District Manager | PO Box 1588 | Mills | 82644 | 307-472-7300 | 6/9/2004 |
| Pleasant View Water Inc. | Private Company | 5600082C | Lloyd Eldredge | PO Box 143 | Mills | 82644 | 307-235-1091 | 10/8/2007 |
| Powell | Muncipality/City | 5600042C | Dick Jones | PO Box 1008 | Powell | 82435 | 307-745-6961 | 11/2/2007 |
| Raintree improvement and service dist. | District | 5601100C | Eric Schilt | 4510 Parkview Cir | Riverton | 82501 | 307-856-7524ext 115 | 8/13/2007 |
| Ranchester | Municipality/Town | 5600044C | Teri Laya | PO Box 695 | Ranchester | 82839 | 307-655-2283 | 6/10/2004 |
| Rawlins | Muncipality/City | 5600045C | Daniel Rodriguez | P.O Box 953 | Rawlins | 82301 | 307-328-4564 | 9/5/2007 |
| Red Lane Domestic Water Inc | Private Company | 5600232C | Ronald Foote | 250 HWY 20 N | Thermopolis | 82443 | 307-864-3265 | 10/13/2007 |
| Ridgewater Improvement District | District | 5600285C | John R. Nelson | 51 Lakeview Dr. | Douglas | 82633 | 307-358-9262 | 10/1/2007 |
| Riverside Mobile Home Court | Private Company | 5600072C | Steve - Laurie | 1250 N Center St. | Casper | 82601 | 307-234-6871 | 8/28/2007 |
| Riverton | Muncipality/City | 5600047C | Bill Urbigkit or John Franks | 816 N Federal Blvd | Riverton | 82501 | 307-856-2227 | 10/5/2007 |
| Rock River | Municipality/Town | 5600048C | James Hopkins | PO Box 280 | Rock River | 82083 | 307-378-2386 | 8/20/2007 |
| Rock Springs | Muncipality/City | 5601182C | Kenneth Weskamp | 212 D st. | Rock Springs | 82901 | 307-352-1405 | 10/29/2007 |
| Rolling Hills | Municipality/Town | 5600782C | Arlene Crook | 38 S. Badger | Rolling Hills | 82637 | 307-436-8141 | 6/14/2004 |
| Ryan Park B Tract WC | Company | Joe Franken | 4011 Frontier Park Rd | Cheyenne | 82001 | 10/11/1999 | ||
| Salt Creek Water District | Special District | 5600133C | Charles and Lavonne Clark | Box 847 | Newcastle | 82701 | 307-746-3331 | 11/12/2007 |
| Saratoga | Municipality/Town | 5600061C | Chuck Barlett | PO Box 486 | Saratoga | 82331 | 307-326-8335 | 12/3/2007 |
| Shell Valley West Water & Sewer District | District | 5601272C | Bob Graham | 9251 N. 4th St. | Greybull | 82426 | 307-765-2030 | 9/12/2007 |
| Shell Water Users Inc. | District | 5600205C | Bob Graham | 9251 N. 4th St. | Greybull | 82426 | 307-765-2030 | 9/12/2007 |
| Sheridan / Sheridan Area Water Supply Joint Powers Board | Muncipality/City | 5600052C | Mike Cole, P.E., Utilities Manager | City of Sheridan, Public Works Department | Sheridan | 82801 | 307-675-4233 | 10/29/2007 |
| Shoshone Municipal Pipeline | JPB | 5601198C | Craig Barsness | P.O. Box 488 | Cody | 82414 | 307-527-4028 | 10/18/2007 |
| Shoshoni | Municipality/Town | 5600053C | Don Schubach | PO Box 262 | Shoshoni | 82649 | 307-876-2512 | 10/24/2001 |
| Sierra Madre | JPB | 5601332C | Susan Munson | PO Box 657 | Riverside | 82325 | 307-327-5266 | 10/10/2001 |
| Sinclair | Municipality/Town | 5600054C | Lee Groshart | PO Box 247 | Sinclair | 82334 | 307-324-3058 | 6/21/2004 |
| Sleepy Hollow | District | 5600764C | Bret Wolz | PO Box 3943 | Gillette | 82717 | 307-687-0372 | 8/20/2007 |
| South Big Horn County JPB | JPB | 5601454C | Mike Dellos | Box 599 | Basin | 82410 | 307-568-3331 | 10/25/2007 |
| South Cheyenne Water & Sewer District | District | 5600239c | Dena Hansen | 215 East Allison Road | Cheyenne | 82009 | 307-635-5608 | 9/5/2007 |
| South Fork Estates WD | District | 5600832C | Scott Heimer | 2290 Wolf Rd | Gillette | 82716 | 307-686-1747 | 3/18/2002 |
| South Riverside Acres Water & Improvement District | District | 5601072C | Michael Hauck | 11076 E. Platte River RD | Evansville | 82636 | 307-237-7122 | 9/13/2007 |
| South Side Water System | District | 5600122C | Bret Wolz | PO Box 3943 | Gillette | 82717 | 307-687-0372 | 10/30/2007 |
| South Thermopolis | District | 5601083C | Majorie Vialpando | 155 Hwy 20 S. | Thermopolis | 82443 | 307-864-2362 | 7/21/2004 |
| South Torrington W&S | District | 5600168C | Michelle Serres | PO Box 606 | Torrington | 82240 | 307-532-3900 | 6/8/2004 |
| South Worland Water Users | Member Owned Cooperative | 5600235C | Ray or Shanon Smith | 103 Country Dr. | Worland | 82401 | 307-347-2117 | 10/29/2007 |
| Southeast Water and Sewer District | District | Mike Evans | 1707 Kristi Lane | Sheridan | 82801 | 307-673-1542ext 4 | 9/5/2007 | |
| Spring Creek ID | District | 5600811C | Dave Stickel | PO Box 3123 | Alpine | 83128 | 307-654-7679 | 3/28/2000 |
| Squaw Creek Water District | District | 5600737C | Robert Scott | PO Box 7692 | Jackson | 83002 | 307-733-3137 | 7/30/2004 |
| Star Valley Ranch | Municipality/Town | 5600287C | Lynn Backus | PO Box 159 | Thayne | 83127 | 307-883-2669 | 7/2/2004 |
| Star Valley Trailer Court | Private Company | 5601017C | Bruce Hendrick | PO Box 1388 | Afton | 83110 | 307-886-9774 | 9/18/2007 |
| Sun Ridge Estates Homeowners Ass'n | Private Company | 5601225C | Diane Bellah or Pat Arndt | 22 N. Mountain View Dr. | Riverton | 82501 | 307-857-0308 | 10/23/2007 |
| Sundance | Muncipality/City | 5600055C | John Kiplinger | P.O. Box 542 | Sundance | 82729 | 307-283-3459 | 8/13/2007 |
| Superior | Municipality/Town | 5600092C | Jimmie R. Smith | PO Box 40 | Superior | 82945 | 307-362-8173 | 12/10/2001 |
| Sylvan Bay Homeowners Assn. | Company | 5601111C | Tom Barker | 853 Burr Dr. | Rock Springs | 82901 | 307-872-2178 | 6/10/2004 |
| Ten Sleep | Municipality/Town | 5600203C | Julie Stencel | PO Box 5 | Ten Sleep | 82442 | 307-366-2447 | 10/29/2001 |
| Teton Shadows | Company | 5600724C | Ted Gosinski | PO Box 2150 | Jackson | 83001 | 307-733-7784 | 11/7/2001 |
| Teton Village Water & Sewer District | District | 5600218C | Jon Wagner | PO Box 586 | Teton Village | 83025 | 8/13/2007 | |
| Thayne | Municipality/Town | 5600159C | Joan Jensen | PO Box 298 | Thayne | 83127 | 307-883-2668 | 6/10/2004 |
| Thermopolis | Municipality/Town | 5600056C | Dan Stansill | PO Box 603 | Thermopolis | 82443 | 307-864-9285 | 6/9/2004 |
| Torrington | Muncipality/City | 5600164C | Tom Troxel | P.O. Box 250 | Torrington | 82240 | 307-532-2012 | 8/13/2007 |
| Upton | Municipality/Town | 5600140C | Charlotte Williams | PO Box 203 | Upton | 82730 | 307-468-2441 | 10/2/2001 |
| Vista West ISD | District | 5600069C | Orval Meier | PO Box 118 | Sundance | 82729 | 307-283-2050 | 6/25/2004 |
| Wamsutter | Municipality/Town | 5600105C | Leroy Williams | PO Box 6 | Wamsutter | 82336 | 307-324-7543 | 9/19/2007 |
| Wardwell Water & Sewer District | Special District | 5600067C | Gloria Brainard | PO Box 728 | Mills | 82644 | 307-265-7034 | 9/27/2007 |
| Warm Spring WD | District | 5600861C | Earl Page | PO Box 1390 | Dubois | 82513 | 307-455-3512 | 6/15/2004 |
| Washakie Rural Improvement & Service District | District | 5601523C | Julie Sinn | P.O. Box 212 | Worland | 82401 | 307-347-4737 | 10/24/2007 |
| Water Unlimited Inc. | Private Company | 5600132C | Cary Voss | 3 Seminoe Ave. | Newcastle | 82701 | 307-746-4298 | 11/9/2007 |
| Wessex Improvement and Service District | District | Corky Steteson | Po Box 164 | Rozet | 82727 | 307-682-0209 | 11/1/2007 | |
| West End Water | District | 5601032C | Susan Kettley | PO Box 892 | Newcastle | 82701 | 307-746-3248 | 6/10/2004 |
| West Side W&S | District | Kena Volsic | 3800 Sunset Dr. | Rock Springs | 82901 | 307-382-9731 | 11/26/2001 | |
| Westridge Water Users Assn | Home Owners Association | 5600146C | Dan R. Price II | PO Box 1673 | Gillette | 82717 | 307-682-2793 | 10/11/2007 |
| Wheatland | Municipality/Town | 5600187C | Cindy Kahler | 600 9th St. | Wheatland | 82201 | 307-322-2822 | 12/31/2001 |
| White Mt. Water & Sewer District | Government/District | 5601391C | Kathy Staley or Dean Atwood | PO Box 2221 | Rock Springs | 82901 | 307-362-3937 | 10/26/2007 |
| Worland | Municipality/Town | 5600197C | Dennis Ihde | 101 Grace Ave. | Worland | 82401 | 307-347-8978 | 9/19/2007 |
| Wright | District | 5600136C | Ralph Kingan | PO Box 549 | Wright | 82732 | 307-464-0491 | 12/6/2007 |
| Yoder | Municipality/Town | 5600169C | Rodney Weyrich | PO Box 158 | Yoder | 82244 | 307-532-0221 | 11/2/2007 |
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