Water Distribution Service Companies
| Cucamonga County Water Dist (Rancho Cucamonga, CA)
Primarily Serving: Upland, CA - Ontario, CA - Fontana, CA - Rialto, CA |
| Dalhart City Water & Sewer (Dalhart, TX)
Primarily Serving: Amarillo, TX - Pueblo, CO - Arapahoe, CO - Lubbock, TX |
| Dania Beach Water Billing (Dania, FL)
Primarily Serving: Fort Lauderdale, FL - Hollywood, FL - Pembroke Pines, FL - Plantation, FL |
| Daniels Sanitation District (Denver, CO)
Primarily Serving: Westminster, CO - Arvada, CO - Aurora, CO - Thornton, CO |
| D'Arbonne Water Systems (Bernice, LA)
Primarily Serving: Monroe, LA - Bossier City, LA - Shreveport, LA - Jefferson, TX |
| Decatur Water Bills & Accounts (Decatur, IL)
Primarily Serving: Springfield, IL - Champaign, IL - Bloomington, IL - Normal, IL |
| Decherd Water Plant (Decherd, TN)
Primarily Serving: Chattanooga, TN - Murfreesboro, TN - Huntsville, AL - Franklin, TN |
| Del Mar City Water Billing (Del Mar, CA)
Primarily Serving: Encinitas, CA - Carlsbad, CA - San Marcos, CA - Escondido, CA |
| Dell Water Co (Dell, AR)
Primarily Serving: Jonesboro, AR - Memphis, TN - Jackson, TN - North Little Rock, AR |
| Delta Lake Irrigation District (Pharr, TX)
Primarily Serving: Hidalgo, TX - Mcallen, TX - Edinburg, TX - Mission, TX |
| Department-Public Works (Manchester, MA)
Primarily Serving: Peabody, MA - Lynn, MA - Revere, MA - Malden, MA |
| Dept of Public Utilties (Orangeburg, SC)
Primarily Serving: Columbia, SC - Augusta, GA - North Charleston, SC - Charleston, SC |
| Diablo Vista Irrigation Water (Pleasant Hill, CA)
Primarily Serving: Concord, CA - Walnut Creek, CA - Pittsburg, CA - Berkeley, CA |
| Disposal Safety Inc (Washington, DC)
Primarily Serving: Arlington, VA - Bethesda, MD - Alexandria, VA - Silver Spring, MD |
| Dix-Kell Sewer Plant (DIX, IL)
Primarily Serving: Saint Louis, MO - Florissant, MO - Evansville, IN - Saint Charles, MO |
| Dixon City Water Works (Dixon, KY)
Primarily Serving: Evansville, IN - Owensboro, KY - Clarksville, TN - Bowling Green, KY |
| Downington Municipal Water (Downingtown, PA)
Primarily Serving: Wilmington, DE - Newark, DE - Reading, PA - Philadelphia, PA |
| Dry Run Utility District (Butler, TN)
Primarily Serving: Johnson City, TN - Asheville, NC - Gastonia, NC - Winston Salem, NC |
| Du Bois Water Distribution (Du Bois, PA)
Primarily Serving: Pittsburgh, PA - Erie, PA - Youngstown, OH - Buffalo, NY |
| Dunes Community Development (Palm Coast, FL)
Primarily Serving: Daytona Beach, FL - Port Orange, FL - Deltona, FL - Sanford, FL |
| Dunklin County Water District (Senath, MO)
Primarily Serving: Jonesboro, AR - Memphis, TN - Jackson, TN - Conway, AR |
| Eagon & Assoc Inc (Columbus, OH)
Primarily Serving: Springfield, OH - Dayton, OH - Middletown, OH - Hamilton, OH |
| Earle Water Co (Earle, AR)
Primarily Serving: Memphis, TN - Jonesboro, AR - Jackson, TN - North Little Rock, AR |
| Earth Tech Inc (Mio, MI)
Primarily Serving: Saginaw, MI - Flint, MI - Lansing, MI - Grand Rapids, MI |
| East Alamosa Water (Alamosa, CO)
Primarily Serving: Pueblo, CO - Colorado Springs, CO - Santa Fe, NM - Jefferson, CO |
