State |  | Water System Name | | City | | County |
|---|
| Alabama | | Anniston Water Works | | Anniston | | Calhoun |
| Alabama | | Birmingham Water Board | | Birmingham | | Jefferson |
| Alabama | | Northport Water Treatment Facility | | Northport | | Tuscaloosa |
| Alabama | | Huntsville Utilities | | Huntsville | | Madison |
| Alabama | | Mobile Area Water and Sewer System | | Mobile | | Mobile |
| Alabama | | City of Tuscaloosa Water & Sewer Department - Ed Love Water Plant | | Tuscaloosa | | Tuscaloosa |
| Alaska | | City & Borough of Sitka | | Stika | | Sitka |
| Alaska | | College Utilities Corporation | | FAIRBANKS | | FAIRBANKS NORTH STAR |
| Alaska | | Golden Heart Utilities | | Fairbanks | | Fairbanks North Star |
| Alaska | | Kenai | | Kenai | | Kenai |
| Alaska | | Juneau | | Juneau | | Juneau |
| Alaska | | Nome Joint Utility System | | Nome | | |
| Arizona | | Arizona American Water Company - Agua Fria | | Surprise | | Maricopa |
| Arizona | | Arizona American Water Company - Anthem | | Phoenix | | Maricopa |
| Arizona | | Arizona American Water Company - Havasu Water | | N/A | | Mohave |
| Arizona | | Arizona American Water Company - Mohave Water | | Bullhead City | | Mohave |
| Arizona | | Arizona American Water Company - Paradise Valley | | Paradise Valley | | Maricopa |
| Arizona | | Arizona American Water Company - Sun City West | | Sun City West | | Maricopa |
| Arizona | | Arizona American Water Company - Sun City | | Sun City | | Maricopa |
| Arizona | | Arizona American Water Company - Tubac | | Tubac | | Santa Cruz |
| Arizona | | City of Surprise | | Surprise | | Maricopa |
| Arizona | | Ajo Improvement Co. | | Ajo | | Pima |
| Arizona | | City of Yuma | | Yuma | | Yuma |
| Arizona | | Bella Vista Water Company | | Sierra Vista | | Cochise |
| Arizona | | city of el mirage | | El Mirage | | Maricopa |
| Arizona | | Mesa Municipal Water | | Mesa | | |
| Arizona | | Glendale Municipal Water | | Glendale | | Maricopa |
| Arizona | | Payson Municipal Water System | | Payson | | Gila |
| Arizona | | Phoenix Municipal Water | | Phoenix | | Maricopa |
| Arizona | | Scottsdale Municipal Water | | Scottsdale | | Maricopa |
| Arizona | | Tucson Water Dept. | | Tucson | | Pima |
| Arizona | | Community Water Co. | | Green Valley | | Pima |
| Arizona | | City of Peoria | | Peoria | | Maricopa |
| Arizona | | Tempe Municipal Water Dept. | | Tempe | | Maricopa |
| Arkansas | | North Little Rock Water Works | | North Little Rock | | Pulaski |
| Arkansas | | Paragould | | Paragould | | Greene |
| Arkansas | | Community Water System | | Higden | | Cleburne |
| Arkansas | | Fort Smith Water Utility | | Fort Smith | | Sebastian |
| Arkansas | | United Water Arkansas | | Pine Bluff | | Jefferson |
| California | | Santa Clara | | Santa Clara | | Santa Clara |
| California | | Santa Rosa | | Santa Rosa | | Sonoma |
| California | | Santa Monica | | Santa Monica | | Los Angeles |
| California | | Canyon Meadows Water Co. | | Bodfish | | Kern |
| California | | Alameda County Water District | | Fremont | | Alameda |
| California | | Alameda Co. Water | | Fremont | | Alameda |
| California | | Anaheim | | Anaheim | | Orange |
| California | | Southern California Water Co. | | Claremont | | Los Angeles, San Bernardino |
| California | | Apple Valley Ranchos Water Co. | | Apple Valley | | San Bernardino |
| California | | Bighorn Desert View Water Agency | | Yucca Valley | | San Bernardino |
| California | | Burbank | | Burbank | | |
| California | | California-American Water Co. | | Baldwin Hills | | Los Angeles |
| California | | California-American Water Co. | | Coronado | | San Diego |
| California | | California-American Water Co. | | Duarte | | Los Angeles |
| California | | California-American Water Co. | | Monterey | | Monterey |
| California | | California-American Water Co. | | San Marino | | Los Angeles |
| California | | California-American Water Co. | | Thousand Oaks | | Ventura |
| California | | California Water Service Co.-Arden | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Armstrong Valley | | Guerneville | | Sonoma |
| California | | California Water Service Co.-Bakersfield | | Bakersfield | | Kern |
| California | | California Water Service Co.-Bear Gulch | | Atherton | | San Mateo |
| California | | California Water Service Co.-Buttonwillow | | Bakersfield | | Kern |
| California | | California Water Service Co.-Camp Erwin Owen | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Castlewood | | Livermore | | Alameda |
| California | | California Water Service Co.-Chico | | Chico | | Butte |
| California | | California Water Service Co.-City of Bakersfield | | Bakersfield | | Kern |
| California | | California Water Service Co.-City of Commerce | | Montebello | | Los Angeles |
| California | | California Water Service Co.-City of Montebello | | Montebello | | Los Angeles |
| California | | California Water Service Co.-Coast Springs | | Guerneville | | Sonoma |
| California | | California Water Service Co.-Country Meadows Mutual | | Salinas | | Monterey |
| California | | California Water Service Co.-Countrywood Water | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Dixon | | Dixon | | Solano |
| California | | California Water Service Co.-Dominguez | | Torrance | | Los Angeles |
| California | | California Water Service Co.-Durham Irrigation District | | Chico | | Butte |
| California | | California Water Service Co.-East Los Angeles | | Montebello | | Los Angeles |
| California | | California Water Service Co.-Foothill Estates | | Salinas | | Monterey |
| California | | California Water Service Co.-Fremont Valley | | Quartz Hill | | Kern |
| California | | California Water Service Co.-Grand Oaks | | Quartz Hill | | Kern |
| California | | California Water Service Co.-Hamilton City | | Chico | | Butte |
| California | | California Water Service Co.-Hawkins | | Guerneville | | Sonoma |
| California | | California Water Service Co.-Hawthorne | | Torrance | | Los Angeles |
| California | | California Water Service Co.-Hermosa-Redondo | | Torrance | | Los Angeles |
| California | | California Water Service Co.-Indian Springs | | Salinas | | Monterey |
| California | | California Water Service Co.-Juniper Hills | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Kernville | | Lake Isabella | | Kern |
| California | | California Water Service Co.-King City | | King City | | Monterey |
| California | | California Water Service Co.-Lake Hughes | | Quartz Hill | | Los Angeles |
| California | | California Water Service Co.-Lakeland | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Lancaster | | Quartz Hill | | Los Angeles |
| California | | California Water Service Co.-Land of Promise | | Quartz Hill | | Kern |
| California | | California Water Service Co.-Las Lomas | | Salinas | | Monterey |
| California | | California Water Service Co.-Leona Valley | | Quartz Hill | | Los Angeles |
| California | | California Water Service Co.-Livermore | | Livermore | | Alameda |
| California | | California Water Service Co.-Los Altos Suburban | | Los Altos | | Santa Clara |
| California | | California Water Service Co.-Lower Bodfish | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Lucerne | | Lucerne | | Lake |
| California | | California Water Service Co.-Marysville | | Marysville | | Yuba |
| California | | California Water Service Co.-Mountain Mesa | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Mountain Shadows | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Noel Heights | | Guerneville | | Sonoma |
| California | | California Water Service Co.-North Garden | | Bakersfield | | Kern |
| California | | California Water Service Co.-Oak Hills | | Salinas | | Monterey |
| California | | California Water Service Co.-Olcese | | Bakersfield | | Kern |
| California | | California Water Service Co.-Onyx | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Oroville | | Oroville | | Butte |
| California | | California Water Service Co.-Painted Turtle Camp | | Quartz Hill | | Los Angeles |
| California | | California Water Service Co.-Palos Verdes | | Torrance | | Los Angeles |
| California | | California Water Service Co.-Ponderosa Pine | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Rancho del Paradiso | | Guerneville | | Sonoma |
| California | | California Water Service Co.-Rural North Vacaville | | Dixon | | Solano |
| California | | California Water Service Co.-Salinas Hills | | Salinas | | Monterey |
| California | | California Water Service Co.-Salinas | | Salinas | | Monterey |
| California | | California Water Service Co.-San Carlos | | San Mateo | | San Mateo |
| California | | California Water Service Co.-San Mateo | | San Mateo | | San Mateo |
| California | | California Water Service Co.-Selma | | Selma | | Fresno |
| California | | California Water Service Co.-Sierra Trailer Lodge | | Lake Isabella | | Kern |
| California | | California Water Service Co.-South Lake | | Lake Isabella | | Kern |
| California | | California Water Service Co.-South San Francisco | | San Mateo | | San Mateo |
| California | | California Water Service Co.-Spicer City | | Bakersfield | | Kern |
| California | | California Water Service Co.-Split Mountain | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Spreckels | | Salinas | | Monterey |
| California | | California Water Service Co.-Squirrel Mountain | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Stockton | | Stockton | | San Joaquin |
| California | | California Water Service Co.-Upper Bodfish | | Lake Isabella | | Kern |
| California | | California Water Service Co.-Westlake | | Westlake Village | | Ventura |
| California | | California Water Service Co.-Willows | | Willows | | Glenn |
| California | | Cal Water | | Bakersfield | | |
| California | | Cal Water | | E. Los Angeles | | |
| California | | Cal Water | | Stockton | | |
| California | | Cucamonga Valley Water District | | Rancho Cucamonga | | California |
| California | | City of Merced | | Merced | | Merced |
| California | | City of Napa | | Napa | | Napa |
| California | | Sacramento | | Sacramento | | Sacramento |
| California | | City of Vacaville | | Vacaville | | Solano |
| California | | City of Woodland | | Woodland | | Yolo |
| California | | Davis | | Davis | | Yolo |
| California | | City of Antioch | | Antioch | | Contra Costa |
| California | | Escondido | | Escondido | | |
| California | | Fullerton | | Fullerton | | Orange |
| California | | Garden Grove | | Garden Grove | | Orange |
| California | | Huntington Beach | | Huntington Beach | | Orange |
| California | | City of Manteca | | Manteca | | San Joaquin |
| California | | Modesto | | Modesto | | Stanislaus |
| California | | City of Ontario | | Ontario | | San Bernardino |
| California | | Oxnard | | Oxnard | | |
| California | | Pleasanton | | Pleasanton | | Alameda |
| California | | City of Pomona | | Pomona | | Los Angeles |
| California | | Pomona | | Pomona | | |
| California | | City of Redlands | | Redlands | | San Bernardino |
| California | | City of Santa Barbara | | Santa Barbara | | Santa Barbara |
| California | | City of Santa Paula | | Santa Paula | | Ventura |
| California | | San Francisco PUC | | San Francisco | | San Mateo |
| California | | Stockton | | Stockton | | San Joaquin |
| California | | Tulare city | | Tulare | | Tulare |
| California | | Vallejo | | Vallejo | | |
| California | | Ventura | | Ventura | | |
| California | | Westminster | | Westminster | | Orange |
| California | | Castaic Lake Water Agency | | Santa Clarita | | |
| California | | Corona | | Corona | | Riverside |
| California | | Daly City | | Daly City | | San Mateo |
| California | | Desert Water Agency | | Palm Springs | | Riverside |
| California | | East Bay MUD | | Oakland | | |
| California | | Eastern Municipal Water District | | Perris | | Riverside |
| California | | Fort Ross | | Cazadero | | Sonoma |
| California | | Estero Municipal Improvement District | | Foster City | | San Mateo |
| California | | Fresno | | Fresno | | |
| California | | Glendale Water and Power | | Glendale | | Los Angeles |
| California | | Great Oaks Water Company | | San Jose | | Santa Clara |
| California | | Helix Water District | | La Mesa | | San Diego |
| California | | INDIO WATER AUTHORITY | | INDIO | | RIVERSIDE |
| California | | Irvine Ranch Water District | | Irvine | | Orange |
| California | | Los Angeles | | Los Angeles | | Los Angeles |
| California | | Long Beach | | Long Beach | | |
| California | | Marina Coast Water District | | Marina | | Monterey |
| California | | Mesa Consolidated Water District | | Costa Mesa | | Orange |
| California | | Moulton Niguel Water District | | Aliso Viejo | | Orange |
| California | | Moulton Niguel Water District | | Laguna Niguel | | Orange |
| California | | Monte Vista Water District | | Montclair | | San Bernardino |
| California | | Padre Dam Municipal Water District | | Santee | | San Diego |
| California | | Palmdale Water District | | Palmdale | | Los Angeles |
| California | | Park Water Co. | | Bellflower/Norwalk | | Los Angeles |
| California | | Park Water Co. | | Compton | | Los Angeles |
| California | | Park Water Co. | | Lynwood/Rancho Dominguez | | Los Angeles |
| California | | Riverside | | Riverside | | Riverside |
| California | | Roseville | | Roseville | | Placer |
| California | | City of San Diego Water Department | | San Diego | | San Diego |
| California | | San Bernardino | | San Bernardino | | San Bernardino |
| California | | California Cities Water | | Edna/Rolling Hills | | San Luis Obispo |
| California | | California Cities Water | | Los Osos | | San Luis Obispo |
| California | | California Cities Water | | Nipomo | | San Luis Obispo |
| California | | California Cities Water | | Orcutt | | Santa Barbara |
| California | | California Cities Water | | Santa Maria/Lake Marie | | Santa Barbara |
| California | | California Cities Water | | Santa Maria/Tanglewood | | Santa Barbara |
| California | | Southern California Water Co--Artesia | | Artesia | | Los Angeles |
| California | | Southern California Water Co--Bell Gardens | | Bell Gardens | | Los Angeles |
| California | | Southern California Water Co--Culver City | | Culver City | | Los Angeles |
| California | | Southern California Water Co--Norwalk | | Norwalk | | Los Angeles |
| California | | Southern California Water Co--Placentia | | Placentia | | Orange |
| California | | Southern California Water Co--San Dimas | | San Dimas | | Los Angeles |
| California | | Southern California Water Co--South Arcadia | | Arcadia | | Los Angeles |
| California | | Southern California Water Co--South San Gabriel | | San Gabriel | | Los Angeles |
| California | | Southern California Water Co--West Orange | | Cypress, Stanton, Los
Alamitos | | Orange |
| California | | Southern California Water Co--Yorba Linda | | Yorba Linda | | Orange |
| California | | Southern California Water Co. | | Apple Valley (Victorville
#1) | | San Bernadino |
| California | | Southern California Water Co. | | Barstow | | San Bernadino |
| California | | Southern California Water Co. | | Calipatria | | Imperial |
| California | | Southern California Water Co. | | Cowan Heights/Lemon Heights | | Orange |
| California | | Southern California Water Co. | | Gardena, Lawndale | | Los Angeles |
| California | | Southern California Water Co. | | Lucerne Valley (Victorville
#6) | | San Bernadino |
| California | | Southern California Water Co. | | Morongo | | San Bernadino |
| California | | Southern California Water Co. | | Niland | | Imperial |
| California | | Southern California Water Co. | | Ojai | | Ventura |
| California | | Southern California Water Co. | | Rancho Cordova | | Sacramento |
| California | | Southern California Water Co. | | Simi | | Ventura |
| California | | Southern California Water Co. | | Southgate | | Los Angeles |
| California | | Southern California Water Co. | | Vernon, Huntington Park | | Los Angeles |
| California | | Southern California Water Co. | | Willowbrook | | Los Angeles |
| California | | Southern California Water Co. | | Wrightwood | | San Bernadino |
| California | | San Jose Water Co. | | San Jose | | |
| California | | Lopez Project | | Arroyo Grande | | San Luis Obispo |
| California | | Sunnyvale | | Sunnyvale | | Santa Clara |
| California | | Torrance | | Torrance | | |
| California | | Vista Irrigation District | | Vista | | San Diego |
| California | | Zone 7 Water Agency | | Pleasanton | | |
| California | | Santa Cruz Water Department | | Santa Cruz | | Santa Cruz |
| California | | Ord Community Water System | | Ord Community | | Monterey |
| Colorado | | City of Victor | | Victor | | Teller |
| Colorado | | City of Arvada | | Arvada | | Jefferson |
| Colorado | | Aurora | | Aurora | | |
| Colorado | | Ft. Collins | | Ft. Collins | | Larimer |
| Colorado | | City of Greeley | | Greeley | | Weld |
| Colorado | | Loveland Water and Power Dept. | | Loveland | | Larimer |
| Colorado | | Palmer Lake | | Palmer Lake | | El Paso |
| Colorado | | Westminster | | Westminster | | Adams/Jefferson |
| Colorado | | Colorado Springs Utilities | | Colorado Springs | | El Paso |
| Colorado | | Forest Lakes Metropolitan District | | Bayfield | | La Plata |
| Colorado | | Board of Water Works | | Pueblo | | Pueblo |
| Colorado | | Tucson Water Co | | Henderson | | Adams |
| Colorado | | Denver Water | | Denver | | Denver |
| Connecticut | | Manchester Water Department | | Manchester | | Hartford |
| Connecticut | | Unionville Water Company | | Avon, Farmington | | Hartford |
| Connecticut | | South Norwalk Electric and Water | | Norwalk | | Fairfield |
| Connecticut | | Metropolitan District Comm. | | Hartford | | Hartford |
| Delaware | | Wilmington | | Wilmington | | New Castle |
| Delaware | | Camden Pumping District | | Camden | | Kent |
| Delaware | | United Water Delaware | | Willmington | | New Castle |
| District of Columbia | | DC Water & Sewer Authority | | Washington | | |
| Florida | | Parkland Utilities, Inc. | | Parkland | | Broward |
| Florida | | Island Water Assoc. | | Sanibel | | Lee |
| Florida | | Miami Dade Water | | Miami | | Dade |
| Florida | | Ft. Lauderdale | | Ft. Lauderdale | | Broward |
| Florida | | Hialeah | | Hialeah | | Dade |
| Florida | | Tampa | | Tampa | | Hillsborough |
| Florida | | Clearwater Water System | | Clearwater | | Pinellas |
| Florida | | City of Atlantic Beach | | Atlantic Beach | | Duval |
| Florida | | Cocoa | | Cocoa | | Brevard |
| Florida | | Okaloosa Co. Water & Sewer | | Ft. Walton Beach | | Okaloosa |
| Florida | | Escambia Co. Utility Authority | | Pensacola | | Escambia |
| Florida | | Gainesville | | Gainesville | | Alachua |
| Florida | | Hillsborough Public Utilities | | Tampa | | Hillsborough |
| Florida | | Hillsborough | | Hillsborough | | Hillborough |
| Florida | | Hollywood | | Hollywood | | Broward |
| Florida | | JEA | | Jacksonville | | Duval |
| Florida | | Jupiter | | Jupiter | | Palm Beach |
| Florida | | Lakeland | | Lakeland | | Polk |
| Florida | | Lauderhill D.E.E.S. | | Lauderhill | | Broward |
| Florida | | Lee Co. Utilities | | Fort Myers | | Lee |
| Florida | | Town of Manalapan | | Manalapan | | Palm Beach |
| Florida | | Melbourne | | Melbourne | | Brevard |
| Florida | | North Miami Beach | | North Miami Beach | | Dade |
| Florida | | Villa Tasso | | Niceville | | Walton |
| Florida | | Orange County Utilities | | Orlando | | Orange |
| Florida | | City of Ormond Beach | | Ormond Beach | | Volusia |
| Florida | | Orlando Utilities Comm. | | Orlando | | Orange |
| Florida | | Pasco County Utitlies | | Land O' Lakes | | Pasco |
| Florida | | Port Malabar | | Palm Bay | | Brevard |
| Florida | | Peoples Water Service Company of Florida, INC. | | Pensacola | | Escambia |
| Florida | | PEOPLES WATER SERVICE COMPANY OF FLORIDA, INC. | | PENSACOLA | | ESCAMBIA |
| Florida | | City of Sebring | | Sebring | | Highlands |
| Florida | | WDW Central | | Lake Buena Vista | | Orange |
| Florida | | St. Petersburg | | St. Petersburg | | Pinellas |
| Florida | | Seacoast Utility Authority | | Palm Beach Gardens | | Palm Beach |
| Florida | | Tallahassee | | Tallahassee | | Leon |
| Florida | | City of Titusville | | Titusville | | Brevard |
| Florida | | Pinellas County Utilities | | Clearwater | | Pinellas |
| Georgia | | DeKalb County | | Decatur | | Dekalb |
| Georgia | | DeKalb County | | Stone Mountain | | DeKalb |
| Georgia | | Atlanta | | Atlanta | | Fulton |
| Georgia | | Brunswick Water System | | Brunswick | | Glynn |
| Georgia | | Augusta-Richmond Co | | Augusta | | Richmond |
| Georgia | | Austell Water System | | Austell | | Cobb |
| Georgia | | Braselton | | Braselton | | Jackson |
| Georgia | | Butts County WSA/City of Jackson/City of Jenkinsburg | | Jackson | | Butts |
| Georgia | | CHEROKEE COUNTY WATER & SEWERAGE AUTHORITY | | CANTON | | CHEROKEE |
| Georgia | | City of Pavo | | Pavo | | Thomas |
| Georgia | | Savannah | | Savannah | | Chatham |
| Georgia | | Columbus Water Works | | Columbus | | Muscogee |
| Georgia | | Dalton Utilities | | Dalton | | Whitfield |
| Georgia | | City of Ellaville,Ga. | | ELLAVILLE | | SCHLEY |
| Georgia | | Gainesville Public Utilities Dept. | | Gainesville | | Hall |
| Georgia | | Macon Water Authority | | Macon | | Bibb |
| Georgia | | Brown Terrace Subdivision | | Hephzibah | | Richmond |
| Hawaii | | Honolulu Board of Water Supply | | Honolulu | | Honolulu |
| Hawaii | | Maui Department of Water Supply | | Maui And Molokai | | Maui |
| Idaho | | City fo Kimberly | | Kimberly | | Twin Falls |
| Idaho | | United Water Idaho | | Boise | | Ada |
| Illinois | | Chicago | | Chicago | | Cook |
| Illinois | | Village of Burr Ridge | | Burr Ridge | | DuPage / Cook |
| Illinois | | City of Elgin | | Elgin | | Kane |
| Illinois | | City of Joliet | | Joliet | | Will |
| Illinois | | Aurora | | Aurora | | Kane |
| Illinois | | Rockford | | Rockford | | |
| Illinois | | Central Lake County Joint Action Water Agency | | Lake Bluff | | Lake |
| Illinois | | Univ. of Illinois | | Urbana | | Champaign |
| Illinois | | Illinois-American Water Co. | | Cairo | | Alexander |
| Illinois | | Illinois-American Water Co. | | Pekin | | Tazewell |
| Illinois | | Illinois-American Water Co. | | Peoria | | Peoria |
| Illinois | | Illinois-American Water Co. | | Alton | | Madison |
| Illinois | | Illinois-American Water Co. | | East St. Louis | | St. Clair |
| Illinois | | Illinois-American Water Co. | | Granite City | | Madison |
| Illinois | | Northern Illinois Water Corp. | | Champaign | | Champaign |
| Illinois | | Naperville | | Naperville | | Dupage |
| Illinois | | Village of Romeoville | | Romeoville | | Will |
| Illinois | | Springfield | | Springfield | | Sangamon |
| Illinois | | Island Lake | | Island Lake | | Lake |
| Illinois | | Village of Lombard | | lombard | | DuPage |
| Indiana | | Frankfort Water Works | | Frankfort | | Clinton |
| Indiana | | Fort Wayne | | Fort Wayne | | Allen |
| Indiana | | City of Bloomington Utilities | | Bloomington | | Monroe |
| Indiana | | South Bend | | South Bend | | |
| Indiana | | Columbus City Utilities | | Columbus | | Bartholomew |
| Indiana | | Evansville Water Utility | | Evansville | | Vanderburgh |
| Indiana | | South Harrison Water Corp. | | New Middletown | | Harrison |
| Indiana | | Indiana-American Water Co., Inc. | | Crawfordsville | | Montgomery |
| Indiana | | Indiana-American Water Co., Inc. | | Greenwood | | Johnson |
| Indiana | | Indiana-American Water Co., Inc. | | Jeffersonville | | Clark |
| Indiana | | Indiana-American Water Co., Inc. | | Kokomo | | Howard |
| Indiana | | Indiana-American Water Co., Inc. | | Muncie | | Delaware |
| Indiana | | Indiana-American Water Co., Inc. | | Newburgh | | Warrick |
| Indiana | | Indiana-American Water Co., Inc. | | Noblesville | | Hamilton |
| Indiana | | Indiana-American Water Co., Inc. | | Richmond | | Wayne |
| Indiana | | Indiana-American Water Co., Inc. | | Seymour | | Jackson |
| Indiana | | Indiana-American Water Co., Inc. | | Shelbyville | | Shelby |
| Indiana | | Indiana-American Water Co., Inc. | | Somerset | | Wabash |
| Indiana | | Indiana-American Water Co., Inc. | | Summitville | | Madison |
| Indiana | | Indiana-American Water Co., Inc. | | Terre Haute | | Vigo |
| Indiana | | Indiana-American Water Co., Inc. | | Wabash | | Wabash |
| Indiana | | Indianapolis Water Co. | | Indianapolis | | Marion |
| Indiana | | Mishawaka Utilities | | Mishawaka | | St. Joseph |
| Iowa | | Cedar Rapids Water Dept. | | Cedar Rapids | | Linn |
| Iowa | | Ames | | Ames | | Story |
| Iowa | | Des Moines Water Works | | Des Moines | | Polk |
| Iowa | | Iowa-American Water Co. | | Davenport | | Scott |
| Iowa | | Clinton | | Clinton | | Clinton |
| Iowa | | Iowa City | | Iowa City | | Johnson |
| Iowa | | Muscatine Power & Water | | Muscatine | | Muscatine |
| Iowa | | North Liberty | | North Liberty | | Johnson |
| Iowa | | Pocahontas Municipal Utilities | | Pocahontas | | Pocahontas |
| Iowa | | Spencer | | Spencer | | Clay |
| Iowa | | Urbandale Water Dept. | | Urbandale | | Polk |
| Iowa | | West Des Moines Water Works | | West Des Moines | | Polk |
| Iowa | | Waterloo Water Works | | Waterloo | | Black Hawk |
| Kansas | | Kansas City BPU | | Kansas City | | Wyandotte |
| Kansas | | University of Kansas | | Lawrence | | Douglas |
| Kansas | | City of Olathe | | Olathe | | Johnson |
| Kansas | | Topeka | | Topeka | | Shawnee |
| Kansas | | Water District #1 Johnson Co. | | Mission | | Johnson |
| Kansas | | City of Wichita | | Wichita | | Sedgwick |
| Kentucky | | Bowling Green Municipal Utilities | | Bowling Green | | Warren |
| Kentucky | | Campbellsville | | Campbellsville | | Taylor |
| Kentucky | | Hardin County Water District No. 2 | | Elizabethtown | | Hardin |
| Kentucky | | Kentucky-American Water Company | | Lexington | | Fayette |
| Kentucky | | Louisville Water Company | | Louisville | | Jefferson |
| Kentucky | | Paducah Water Works | | Paducah | | McCracken |
| Louisiana | | Baton Rouge Water Company | | Baton Rouge | | East Baton Rouge |
| Louisiana | | Monroe Water System | | Monroe | | Ouachita |
| Louisiana | | Shreveport | | Shreveport | | Caddo |
| Louisiana | | E Jefferson WW Dist #1 | | Jefferson | | Jefferson |
| Louisiana | | Lafayette Utilities System | | Lafayette | | Lafayette |
| Louisiana | | New Orleans | | New Orleans | | Orleans |
| Maine | | Madison Water District | | Madison | | Somerset |
| Maine | | Augusta | | Augusta | | Kennebec |
| Maine | | Bangor | | Bangor | | Penobscot |
| Maine | | Bath Water District | | Bath | | Sagadahoc |
| Maine | | Hampden Water District | | Hampden | | Penobscot |
| Maine | | Portland Water District | | Portland | | Cumberland |
| Maine | | Sanford | | Sanford | | York |
| Maryland | | Anne Arundel | | Glen Burnie-Broadneck | | Anne Arundel |
| Maryland | | City of Annapolis | | Annapolis | | Anne Arundel |
| Maryland | | Baltimore | | Baltimore | | |
| Maryland | | Cumberland | | Cumberland | | Allegany |
| Maryland | | Frederick | | Frederick | | Frederick |
| Maryland | | Howard County Dept. of Public Works | | Columbia | | Howard |
| Maryland | | Myersville | | Myersville | | Frederick |
| Maryland | | Trappe | | Trappe | | Talbot |
| Massachusetts | | Lowell Regional Water Utility | | Lowell | | Middlesex |
| Massachusetts | | Auburn Water District | | Auburn | | Worcester |
| Massachusetts | | New Bedford | | New Bedford | | Bristol |
| Massachusetts | | Worcester | | Worcester | | Worcester |
| Massachusetts | | Clinton Water Dept. | | Clinton | | Worcester |
| Massachusetts | | Cohasset Water Department | | Cohasset | | Norfolk |
| Massachusetts | | Dighton Water District | | Dighton | | Bristol |
| Massachusetts | | Easton | | Easton | | Bristol |
| Massachusetts | | Hopkinton Water Dept. | | Hopkinton | | Middlesex |
| Massachusetts | | Littleton Electric Light and Water Departments | | Littleton | | Middlesex |
| Massachusetts | | Boston Water & Sewer Comm. | | Boston | | Suffolk |
| Massachusetts | | Brookline Water & Sewer Comm. | | Brookline | | Norfolk |
| Massachusetts | | North Andover Water Dept. | | North Andover | | Essex |
| Massachusetts | | North Brookfield Water Department | | North Brookfield | | Worcester |
| Massachusetts | | Provincetown | | Provincetown | | Barnstable |
| Massachusetts | | Sterling Water Department | | Sterling | | USA |
| Massachusetts | | City of Taunton DPW Water Division | | Taunton | | Bristol |
| Massachusetts | | Marshfield Water Division | | Marshfield | | Plymouth |
| Massachusetts | | Barre | | Barre | | Worcester |
| Massachusetts | | Brewster Water Department | | Brewster | | Barnstable |
| Massachusetts | | Duxbury Water Department | | Duxbury | | Plymouth |
| Massachusetts | | Ipswich | | Ipswich | | Essex |
| Massachusetts | | Orleans Water Department | | Orleans | | Barnstable |
| Massachusetts | | Springfield Water & Sewer | | Springfield | | Hampden |
| Massachusetts | | Westborough Water Dep't | | Westborough | | Worcester |
| Massachusetts | | Westford | | Westford | | Middlesex |
| Michigan | | Battle Creek | | Battle Creek | | Calhoun |
| Michigan | | Flint | | Flint | | Genesee |
| Michigan | | Warren | | Warren | | Macomb |
| Michigan | | Ann Arbor | | Ann Arbor | | Washtenaw |
| Michigan | | Kalamazoo | | Kalamazoo | | Kalamazoo |
| Michigan | | Livonia | | Livonia | | Wayne |
| Michigan | | Saline | | Saline | | Washtenaw |
| Michigan | | Sterling Heights | | Sterling Heights | | Macomb |
| Michigan | | Wyoming | | Wyoming | | Kent |
| Michigan | | Detroit | | Detroit | | |
| Michigan | | Grand Rapids | | Grand Rapids | | Kent |
| Michigan | | Grand Haven | | Grand Haven | | Ottawa |
| Michigan | | Holland Board of Public Works | | Holland | | Ottawa |
| Michigan | | Lansing Board of Water & Light | | Lansing | | Ingham |
| Michigan | | Marine City Water Works | | Marine City | | St. Clair |
| Michigan | | Saginaw Water Treatment Plant | | Saginaw | | Saginaw |
| Michigan | | St. Joseph Water | | St. Joseph | | Berrien |
| Michigan | | Waterford | | Waterford | | Oakland |
| Michigan | | Independence Township | | Clarkston | | Oakland |
| Minnesota | | Minneapolis | | Minneapolis | | Hennepin |
| Minnesota | | St. Paul | | St. Paul | | Ramsey |
| Minnesota | | Paynesville | | Paynesville | | Stearns |
| Mississippi | | Lowndes County Water Association, Inc. | | Columbus | | Lowndes |
| Mississippi | | Jackson | | Jackson | | Hinds |
| Missouri | | St Louis | | St Louis | | |
| Missouri | | City Utilities | | Springfield | | Greene |
| Missouri | | Independence | | Independence | | Jackson |
| Missouri | | Kirkwood | | Kirkwood | | St Louis |
| Missouri | | Chillicothe Utilities | | Chillicothe | | Livingstone |
| Missouri | | Columbia | | Columbia | | Boone |
| Missouri | | Jackson Co. Public Water Supply District #1 | | Grandview | | Jackson |
| Missouri | | Kansas City | | Kansas City | | Jackson |
| Missouri | | Carthage Water and Electric | | Carthage | | Jasper |
| Missouri | | City of Neosho | | Neosho | | Newton |
| Missouri | | Ozark | | Ozark | | Christian |
| Missouri | | Public Water Supply Dist 1 of Putnam County | | Unionville | | Putnam |
| Missouri | | PWSD #1 of Putnam County | | Unionville | | Putnam |
| Montana | | Billings | | Billings | | Yellowstone |
| Montana | | Mountain Water Company | | Missoula | | Missoula |
| Montana | | City of Great Falls | | Great Falls | | Cascade |
| Montana | | Libby | | Libby | | Lincoln |
| Nebraska | | Lincoln | | Lincoln | | Lancaster |
| Nebraska | | Metropolitan Utilities District | | Omaha | | Douglas, Sarpy, Washington |
| Nevada | | Henderson | | Henderson | | Clark |
| Nevada | | Las Vegas Valley Water Dist. | | Las Vegas | | Clark |
| Nevada | | Nellis AFB | | Nellis Afb | | Clark |
| Nevada | | North Las Vegas Utilities | | N. Las Vegas | | Clark |
| New Hampshire | | Manchester Water Works | | Manchester | | Merrimack |
| New Hampshire | | Concord Water Supply | | Concord | | Merrimack |
| New Hampshire | | Pennichuck Water Works | | Nashua | | Hillsborough |
| New Jersey | | Trenton Water Works | | Trenton City | | Mercer |
| New Jersey | | Bayonne MUA | | Bayonne City | | Hudson |
| New Jersey | | Beachwood | | Beachwood | | Ocean |
| New Jersey | | Brick Township Municipal Utilities Authority | | Brick | | Ocean |
| New Jersey | | Newark Water Dept. | | Newark | | |
| New Jersey | | Deptford Township Municipal Utilities Authority | | Deptford | | Gloucester |
| New Jersey | | Middlesex Water Co | | Edison | | Midlesex |
| New Jersey | | City of Newark Pequannock and Wanaque Water Systems | | Newark | | Essex |
| New Jersey | | New Jersey-American Water Co. | | Atlantic County | | Atlantic |
| New Jersey | | New Jersey-American Water Co. | | Belvidere, Oxford,
Washington | | Warren |
| New Jersey | | New Jersey-American Water Co. | | Cape May Court House Area | | Cape May |
| New Jersey | | New Jersey-American Water Co. | | Delaware Valley | | Camden, Burlington |
| New Jersey | | New Jersey-American Water Co. | | Frenchtown Area | | Hunterdon |
| New Jersey | | New Jersey-American Water Co. | | International Trade Center | | Morris |
| New Jersey | | New Jersey-American Water Co. | | Jamesburg Area | | Middlesex |
| New Jersey | | New Jersey-American Water Co. | | Lakewood Area | | Ocean |
| New Jersey | | New Jersey-American Water Co. | | Little Falls Area | | Passaic |
| New Jersey | | New Jersey-American Water Co. | | Logan & Woolwich Townships | | Gloucester |
| New Jersey | | New Jersey-American Water Co. | | Ocean City | | Cape May |
| New Jersey | | New Jersey-American Water Co. | | Short Hills Area | | Essex, Morris, Somerset |
| New Jersey | | New Jersey-American Water Co. | | Strathmere | | Cape May |
| New Jersey | | New Jersey-American Water Co. | | Sunbury Village | | Burlington |
| New Jersey | | New Jersey-American Water Co. | | Union Beach | | Monmouth |
| New Jersey | | New Jersey-American Water Co. | | West Jersey | | Morris |
| New Jersey | | | | Monmouth County | | Monmouth |
| New Jersey | | Passaic Valley Water Commisssion | | Totowa | | Passaic |
| New Jersey | | United Water Jersey City | | Jersey City | | Hudson |
| New Jersey | | United Water/Hoboken Water | | Hoboken | | Hudson |
| New Jersey | | United Water Lambertville | | Lambertville | | Hunterdon |
| New Jersey | | United Water Toms River | | Toms River | | Ocean |
| New Mexico | | New Mexico American Water Company - Edgewood | | Edgewood | | Santa Fe |
| New Mexico | | Albuquerque Water Utility | | Albuquerque | | Bernalillo |
| New Mexico | | Los Lunas Water System | | Los Lunas | | Valencia |
| New Mexico | | New Mexico-American Water Co. | | Clovis | | Curry |
| New Mexico | | Sandia Peak Utility Company | | Albuquerque | | Bernalillo |
| New Mexico | | Desert Sands MDWCA | | Anthony/Berino | | Dona Ana |
| New York | | Auburn | | Auburn | | Cayuga |
| New York | | Helen Hays Hospital | | West Haverstraw | | Rockland |
| New York | | Hempstead | | Hempstead | | |
| New York | | Albany | | Albany | | Albany |
| New York | | Yonkers | | Yonkers | | Westchester |
| New York | | Buffalo Water Authority | | Buffalo | | Erie |
| New York | | Mount Vernon Board of Water Supply | | Mount Vernon | | Westchester |
| New York | | NYC Dept. of Environmental Protection | | New York | | |
| New York | | Rochester | | Rochester | | Monroe |
| New York | | Hyde Park | | Hyde Park | | Dutchess |
| New York | | Staatsburg | | Staatsburg | | Dutchess |
| New York | | Greenburgh Consold. Water Dist. No. 1 | | Greenburgh | | Westchester |
| New York | | Onondaga County Water Authority | | Central NY | | Onondaga
Oswego
Madison
Oneida |
| New York | | Oneida | | Oneida | | Madison |
| New York | | Village of Oneida Castle | | Oneida Castle | | Oneida |
| New York | | Poughkeepsie Water | | Poughkeepsie | | Dutchess |
| New York | | Syracuse City | | Syracuse | | Onondaga |
| New York | | Glenville | | Glenville | | Schenectady |
| New York | | Upper Mohawk Valley | | Oswego | | |
| New York | | United Water New Rochelle | | New Rochelle | | Westchester |
| New York | | United Water Nicols | | Nicols | | Tioga |
| New York | | United Water Owego | | Owego | | Tioga |
| New York | | Wellsville Water Department | | Wellsville | | Allegany |
| New York | | Westchester Joint Water Works | | Mamaroneck, Harrison | | Westchester |
| North Carolina | | Town of Clayton | | Clayton | | Johnston |
| North Carolina | | Town of Apex | | Apex | | Wake |
| North Carolina | | Asheville-Buncombe | | Asheville | | Buncombe |
| North Carolina | | Durham | | Durham | | Durham |
| North Carolina | | Salisbury WTP | | Salisbury | | Rowan |
| North Carolina | | Winston-Salem | | Winston-Salem | | Forsyth |
| North Carolina | | Charlotte-Mecklenburg Utilities | | Charlotte | | Mecklenburg |
| North Carolina | | Davidson Water Inc | | Welcome | | Davidson |
| North Carolina | | Fayetteville Public Works Commission | | Fayetteville | | Cumberland |
| North Carolina | | Greensboro | | Greensboro | | |
| North Carolina | | Harnett Co. Dept. of Public Utilities | | Lillington | | Harnett |
| North Carolina | | NEW HANOVER COUNTY WATER SYSTEM | | WILMINGTON | | NEW HANOVER |
| North Carolina | | Orange Water and Sewer Authority | | Carrboro | | Orange |
| North Carolina | | Raleigh | | Raleigh | | Wake |
| North Dakota | | Grand Forks | | Grand Forks | | Grand Forks |
| North Dakota | | McLean-Sheridan Rural Water | | Turtle Lake | | McLean/Sheridan |
| North Dakota | | Southwest Water Authority | | Dickinson | | Stark |
| North Dakota | | Traill Rural Water | | Clifford | | Traill |
| Ohio | | Akron | | Akron | | Summit |
| Ohio | | Columbus | | Columbus | | Franklin |
| Ohio | | Dayton Dept. of Water | | Dayton | | Montgomery |
| Ohio | | St. Marys | | St. Marys | | Auglaize |
| Ohio | | Cincinnati Water Works | | Cincinnati | | Hamilton |
| Ohio | | Canton | | Canton | | Stark |
| Ohio | | Toledo | | Toledo | | |
| Ohio | | Cleveland | | Cleveland | | Cuyahoga |
| Ohio | | Greenfield | | Greenfield | | Highland |
| Ohio | | Fremont, City of | | Fremont | | Sandusky |
| Ohio | | Hecla Water Association, Inc. | | Ironton | | Lawrence |
| Ohio | | Hicksville, Village | | Hicksville | | Defiance |
| Ohio | | Newark | | Newark | | Licking |
| Ohio | | Stow Public Water | | Stow | | Summit |
| Ohio | | Upper Sandusky Water Dept. | | Upper Sandusky | | Wyandot |
| Ohio | | Youngstown | | Youngstown | | Mahoning |
| Oklahoma | | Lawton | | Lawton | | Comanche |
| Oklahoma | | Oklahoma City | | Oklahoma City | | Oklahoma |
| Oklahoma | | Tulsa | | Tulsa | | Tulsa |
| Oregon | | Albany | | Albany | | Linn |
| Oregon | | Hopewell Water Company | | Salem | | Yamhill |
| Oregon | | Salem Public Works Department | | Salem | | Marion |
| Oregon | | Corvallis | | Corvallis | | Benton |
| Oregon | | City of Dallas | | Dallas | | Polk |
| Oregon | | Junction City | | Junction City | | Lane |
| Oregon | | Lebanon | | Lebanon | | Linn |
| Oregon | | Wilsonville | | Wilsonville | | Clackamas |
| Oregon | | South Clackamas River Water | | Clackamas | | Clackamas |
| Oregon | | Eugene Water and Electric Board | | Eugene | | Lane |
| Oregon | | Medford Water Commission | | Medford | | Jackson |
| Oregon | | Suburban East Salem Water District | | Salem | | Marion |
| Oregon | | Pendleton | | Pendleton | | Umatilla |
| Oregon | | Portland Bureau of Water Works | | Portland | | Multnomah |
| Oregon | | Reedsport | | Reedsport | | Douglas |
| Pennsylvania | | Elverson Water Company | | Elverson | | Chester |
| Pennsylvania | | Wilkinsburg-Penn Joint Water Authority | | Eastern Suburbs | | Allegheny |
| Pennsylvania | | City of Bethlehem | | Bethlehem | | Northampton |
| Pennsylvania | | Chester Water Authority | | Chester | | Chester |
| Pennsylvania | | City of Lancaster | | Lancaster | | Lancaster |
| Pennsylvania | | Lewistown Boro Municipal Authority | | Lewistown | | Mifflin |
| Pennsylvania | | Erie City Water Authority | | Erie | | Erie |
| Pennsylvania | | Easton Suburban Water Authority | | Easton | | Northampton |
| Pennsylvania | | London Grove Township Municipal Authority | | West Grove | | Chester |
| Pennsylvania | | Emmaus Borough Water System | | Emmaus | | Lehigh |
| Pennsylvania | | Hellertown Borough Authority | | Hellertown | | Northampton |
| Pennsylvania | | Lehigh Co. Authority | | Allentown | | Lehigh |
| Pennsylvania | | Northampton Borough | | Northampton | | Northampton |
| Pennsylvania | | Upper Saucon Township | | Center Valley | | Lehigh |
| Pennsylvania | | Slatington | | Slatington | | Lehigh |
| Pennsylvania | | Allentown | | Allentown | | Lehigh |
| Pennsylvania | | Whitehall Township Authority | | Whitehall | | Lehigh |
| Pennsylvania | | Meadville Housing Corp - Northgate | | Meadville | | Crawford |
| Pennsylvania | | Muhlenberg Township | | Reading | | Berks |
| Pennsylvania | | Pennsylvania American Water Co. | | Lake Scranton | | Lackawanna |
| Pennsylvania | | Pennsylvania American Water Co. | | Pittsburgh | | Allegheny |
| Pennsylvania | | Pittsburgh | | Pittsburgh | | Allegheny |
| Pennsylvania | | Philadelphia Water Department | | Philadelphia | | Philadelphia |
| Pennsylvania | | Tobyhanna Army Depot | | Tobyhanna | | Monroe |
| Pennsylvania | | United Water Bethel | | Bethel | | Delaware |
| Pennsylvania | | United Water Pennslyvania-Noxen | | Noxen | | Wyoming |
| Pennsylvania | | United Water Pennslyvania-Shavertown | | Shavertown | | Luzerne |
| Pennsylvania | | United Water Pennsylvania-Bloomsburg | | Bloomsburg | | Columbia |
| Pennsylvania | | United Water Pennsylvania-CCIP | | Columbia | | Lancaster |
| Pennsylvania | | United Water Pennsylvania-Center Square | | Mechanicsburg | | Cumberland |
| Pennsylvania | | United Water Pennsylvania-Dallas | | Dallas | | Luzerne |
| Pennsylvania | | United Water Pennsylvania-Grantham | | Mechanicsburg | | Cumberland |
| Pennsylvania | | United Water Pennsylvania-Harvey's Lake | | Harvey's Lake | | Luzerne |
| Pennsylvania | | United Water Pennsylvania-Mechanicsburg | | Mechanicsburg | | Cumberland |
| Pennsylvania | | United Water Pennsylvania-Newberry | | Newberry | | Lycoming |
| Pennsylvania | | United Water Pennsylvania-Nuremberg | | Nuremberg | | Luzerne |
| Pennsylvania | | Warrington Township | | Warrington | | Bucks |
| Pennsylvania | | York Water Co. | | York | | York |
| Pennsylvania | | Hawk Valley Village | | Brecknock Township | | Lancaster |
| Rhode Island | | Woonsocket Water Department | | Woonsocket | | Providence |
| Rhode Island | | East Providence | | East Providence | | Providence |
| Rhode Island | | City of Newport | | Newport | | Newport |
| Rhode Island | | Naval Station Newport | | Newport | | Newport |
| Rhode Island | | United States Navy (Fort Adams) | | Newport | | Newport |
| Rhode Island | | Portsmouth Water and Fire District | | Portsmouth | | Newport |
| Rhode Island | | Providence Water | | Providence | | |
| Rhode Island | | Pawtucket | | Pawtucket | | Providence |
| Rhode Island | | Pawtucket | | Pawtucket | | |
| Rhode Island | | University of Rhode Island | | South Kingston | | Washington |
| South Carolina | | Beaufort-Jasper Water & Sewer Authority | | Beaufort | | Beaufort & Jasper |
| South Carolina | | Charleston CPW | | Charleston | | Charleston |
| South Carolina | | Columbia | | Columbia | | Richland |
| South Carolina | | Greenville Water System | | Greenville | | Greenville |
| South Carolina | | Spartanburg Water System | | Spartanburg | | Spartanburg |
| South Dakota | | City of Madison | | Madison | | Lake |
| South Dakota | | Rapid City | | Rapid City | | Pennington |
| South Dakota | | Sioux Falls | | Sioux Falls | | Minnehaha |
| Tennessee | | Dunlap Water System | | Dunlap | | Sequatchie |
| Tennessee | | Millington Water Department | | Millington | | Shelby |
| Tennessee | | Clarksville Water Dept. | | Clarksville | | Montgomery |
| Tennessee | | City of Crossville | | Crossville | | Cumberland |
| Tennessee | | Duck River Utility Commission | | Manchester | | Coffee |
| Tennessee | | Manchester Water Dept. | | Manchester | | Coffee |
| Tennessee | | Knoxville Utilities Board | | Knoxville | | Knox |
| Tennessee | | Memphis Light, Gas & Water | | Memphis | | Shelby |
| Tennessee | | Metro Water Services | | Nashville | | Davidson |
| Tennessee | | Metro Water Services | | Nashville | | Davidson |
| Tennessee | | Nashville | | Nashville | | Davidson |
| Tennessee | | Tennessee-American Water Co. | | Chattanooga | | Hamilton |
| Tennessee | | Smyrna Water System | | Smyrna | | Rutherford |
| Texas | | East Cedar Creek FWSD B A McKay | | Mabank | | Henderson |
| Texas | | Lubbock | | Lubbock | | Lubbock |
| Texas | | Abilene | | Abilene | | Taylor |
| Texas | | Brownsville Public Utilities Board | | Brownsville | | Cameron |
| Texas | | Corpus Christi | | Corpus Christi | | Nueces |
| Texas | | Beaumont Water Util Dept | | Beaumont | | Jefferson |
| Texas | | Laredo | | Laredo | | Webb |
| Texas | | City of Lewisville | | Lewisville | | Denton |
| Texas | | Mesquite | | Mesquite | | Dallas |
| Texas | | Amarillo Municipal Water System | | Amarillo | | Potter |
| Texas | | Arlington | | Arlington | | Tarrant |
| Texas | | Austin | | Austin | | Travis |
| Texas | | Grapevine | | Grapevine | | Tarrant |
| Texas | | City of Huntsville | | Huntsville | | Walker |
| Texas | | Irving | | Irving | | Dallas |
| Texas | | City of Killeen | | Killeen | | Bell |
| Texas | | Odessa | | Odessa | | Ector |
| Texas | | City of Paris | | Paris | | Lamar |
| Texas | | Pasadena | | Pasadena | | Harris |
| Texas | | Wichita Falls | | Wichita Falls | | Wichita |
| Texas | | Clear Lake City Water Authority | | Clear Lake City | | Harris |
| Texas | | College Station Utilities | | College Station | | Brazos |
| Texas | | Dallas Water Utility | | Dallas | | Dallas |
| Texas | | City of Anthony | | Anthony | | El Paso |
| Texas | | El Paso Water Utilities | | El Paso | | El Paso |
| Texas | | Fort Worth Water Dept. | | Fort Worth | | Tarrant |
| Texas | | City Of Garland | | Garland | | Dallas |
| Texas | | Grand Prairie | | Grand Prairie | | Dallas |
| Texas | | City of Keller | | Keller | | Tarrant |
| Texas | | Lampasas Public Utilities | | Lampasas | | Lampasas |
| Texas | | McAllen | | Mcallen | | Hidalgo |
| Texas | | Plano | | Plano | | Collins |
| Texas | | Houston DPW | | Houston | | Harris |
| Texas | | San Antonio Water | | San Antonio | | Bexar |
| Texas | | Tyler | | Tyler | | Smith |
| Texas | | Waco | | Waco | | Mclennan |
| Utah | | Dixie Deer SSD | | Central | | Washington |
| Utah | | Salt Lake City Water | | Salt Lake City | | Salt Lake |
| Utah | | Central Utah WCD | | Ashley Valley | | Uintah |
| Utah | | Central Utah WCD | | Duschene | | Duschene |
| Utah | | Central Utah WCD | | Orem, Provo | | Utah |
| Utah | | Provo | | Provo | | Utah |
| Utah | | St George | | St George | | Washington |
| Utah | | South Jordan City | | South Jordan City | | Salt Lake |
| Virginia | | Ft. Monroe | | Ft. Monroe | | |
| Virginia | | Big Stone Gap | | Big Stone Gap | | Wise |
| Virginia | | Chesapeake | | Chesapeake | | |
| Virginia | | Richmond | | Richmond | | |