| C.T. Male Associates |
New York, United States |
| Carter Lake Filter Plant |
Colorado, United States |
| Cary, North Carolina |
North Carolina, United States |
| Cascade Energy |
Oregon, United States |
| Cayenta |
British Columbia, United States |
| Central Coast Water Authority |
California, United States |
| Charles County Government |
Maryland, United States |
| Charlotte County Board of County Commissioners |
Florida, United States |
| Chart Industries |
Georgia, United States |
| City & Borough of Juneau, AK |
Alaska, United States |
| City and County of Broomfield |
Colorado, United States |
| City of Ames |
Iowa, United States |
| City of Ashland, KY |
Kentucky, United States |
| City of Aspen |
Colorado, United States |
| City of Beverly Hills |
California, United States |
| City of Black Hawk, CO assisted by KRW Associates |
Colorado, United States |
| City of Boise |
Idaho, United States |
| City of Bothell |
Washington, United States |
| City of Bothell |
Washington, United States |
| City of Brevard |
North Carolina, United States |
| City of Cambridge, MD |
Maryland, United States |
| City of Carrollton |
Texas, United States |
| City of Casper |
Wyoming, United States |
| City of Charlotte |
North Carolina, United States |
| City of Chula Vista |
California, United States |
| City of College Station, Texas |
Texas, United States |
| City of Corvallis |
Oregon, United States |
| City of Dallas |
Texas, United States |
| City of Dayton |
Ohio, United States |
| City of Dexter |
Michigan, United States |
| City of Durham |
North Carolina, United States |
| City of East Lansing |
Michigan, United States |
| City of Eau Claire |
Wisconsin, United States |
| City of Edmond, OK |
Virginia, United States |
| CITY OF EVANSVILLE |
Indiana, United States |
| City of Farmington Hills |
North Carolina, United States |
| City of Fort Dodge |
Iowa, United States |
| City of Fort Lauderdale |
Florida, United States |
| City of Georgetown |
Texas, United States |
| City of Goodyear |
Arizona, United States |
| City of Grand Island |
Nebraska, United States |
| City of Grand Rapids |
Michigan, United States |
| City of Grand Rapids |
Michigan, United States |
| City of Greeley |
Colorado, United States |
| City of Harrisonburg |
Virginia, United States |
| CITY OF HORSESHOE BAY |
Texas, United States |
| City of Howell |
Michigan, United States |
| City of Huntington Beach |
California, United States |
| City of Jacksonville Beach |
Florida, United States |
| City of Keizer |
Oregon, United States |
| City of Kingsville |
Texas, United States |
| City of Klamath Falls |
Oregon, United States |
| City of Lake Oswego |
Oregon, United States |
| City of Lapeer |
Michigan, United States |
| City of Largo, FL |
Florida, United States |
| City of Lewisville |
Texas, United States |
| City of Louisville, Colorado |
Colorado, United States |
| City Of Loveland |
Colorado, United States |
| City of Madera |
California, United States |
| City of Medford, Oregon |
Oregon, United States |
| City of Mesa |
Texas, United States |
| City of Monterey Park |
California, United States |
| City of Naperville |
Illinois, United States |
| City of Newberry |
South Carolina, United States |
| CITY OF NEWPORT NEWS |
Virginia, United States |
| City of Newport News |
Virginia, United States |
| City of Newport, Rhode Island |
Rhode Island, United States |
| City of North Miami Beach |
Florida, United States |
| City of Oak Harbor |
Washington, United States |
| City of Ormond Beach |
Florida, United States |
| City of Oshkosh |
Wisconsin, United States |
| City of Oxnard |
California, United States |
| City of Paris, Texas |
Texas, United States |
| City of Petaluma |
California, United States |
| City of Phoenix |
Arizona, United States |
| City of Port Angeles |
Washington, United States |
| City of Redding |
California, United States |
| City of Reno |
Nevada, United States |
| City of Renton |
Washington, |
| City of Ridgefield |
Washington, United States |
| City of Rochester |
Minnesota, United States |
| City of Rochester |
Minnesota, United States |
| City of Roseville |
California, United States |
| City of Sacramento Department of Utilities |
California, United States |
| City of San Diego |
California, United States |
| City of Santa Cruz |
California, United States |
| City of Savannah |
Georgia, United States |
| City of Sebastopol |
California, United States |
| City of Sidney |
Ohio, United States |
| City of St. Cloud |
Florida, United States |
| City of St. Petersburg |
Florida, United States |
| City of Statesboro |
Georgia, United States |
| City of Statesville |
North Carolina, United States |
| City of Sun Prairie |
Wisconsin, United States |
| City of Thousand Oaks |
California, United States |
| City of Tillamook Public Works |
Oregon, United States |
| City of Topeka |
Kansas, United States |
| City of Topeka |
Kansas, United States |
| City of Unalaska |
Alaska, United States |
| City of Venice |
Florida, United States |
| City of Virginia Beach |
Virginia, United States |
| City of Wentzville |
Missouri, United States |
| City of Westminster |
Colorado, United States |
| City of Wilsonville |
Oregon, United States |
| City of Woodburn |
Oregon, United States |
| City of York |
Pennsylvania, United States |
| City Utilities of Springfield |
Missouri, United States |
| Clay County Utility Authority |
Florida, United States |
| Clayton County Water Authority |
Georgia, United States |
| Coachella Valley Water District |
California, United States |
| Coachella Valley Water District |
California, United States |
| Colorado River Board of California |
California, United States |
| Colorado Springs Utilities |
Colorado, United States |
| Crown Cork and Seal |
Pennsylvania, United States |
