Water Distribution Service Companies
| Lower Valley Water District (San Elizario, TX)
Primarily Serving: El Paso, TX - Las Cruces, NM - Odessa, TX - Albuquerque, NM |
| Machias Water Co (Machias, ME)
Primarily Serving: Portland, ME - Haverhill, MA - Manchester, NH - Lawrence, MA |
| Madison Water & Sewage Dept (Madison, IN)
Primarily Serving: Louisville, KY - Cincinnati, OH - Hamilton, OH - Bloomington, IN |
| Madison Water Billing (Madison, MS)
Primarily Serving: Jackson, MS - Hattiesburg, MS - Monroe, LA - Baton Rouge, LA |
| Maidencreek Twp Water Auth (Blandon, PA)
Primarily Serving: Reading, PA - Allentown, PA - Bethlehem, PA - Lancaster, PA |
| Man Water Works Dept (Man, WV)
Primarily Serving: Johnson City, TN - Roanoke, VA - Winston Salem, NC - Lexington, KY |
| Manassas Park Water Billing (Manassas, VA)
Primarily Serving: Centreville, VA - Burke, VA - Annandale, VA - Reston, VA |
| Marblehead Town Water Shop (Marblehead, MA)
Primarily Serving: Peabody, MA - Lynn, MA - Revere, MA - Malden, MA |
| Marceline City Water Plant (Marceline, MO)
Primarily Serving: Columbia, MO - Blue Springs, MO - Independence, MO - Lees Summit, MO |
| Margate City Water/Sewer Blng (Margate City, NJ)
Primarily Serving: Vineland, NJ - Toms River, NJ - Camden, NJ - Philadelphia, PA |
| Markout Water Supply Corp (Forney, TX)
Primarily Serving: Mesquite, TX - Rowlett, TX - Garland, TX - Dallas, TX |
| Martin Springs Water (Como, TX)
Primarily Serving: Tyler, TX - Longview, TX - Jefferson, TX - Rowlett, TX |
| Mc Curtain County Rwd (Garvin, OK)
Primarily Serving: Jefferson, TX - Canadian, OK - Longview, TX - Fort Smith, AR |
| Meade County Water District (Brandenburg, KY)
Primarily Serving: Louisville, KY - Owensboro, KY - Bowling Green, KY - Evansville, IN |
| Medford Twp Water Div (Medford, NJ)
Primarily Serving: Camden, NJ - Philadelphia, PA - Levittown, PA - Trenton, NJ |
| Mesa Watermasters office (Mesa, WA)
Primarily Serving: Pasco, WA - Kennewick, WA - Yakima, WA - Spokane, WA |
| Metro Services Ii Inc (Silverthorne, CO)
Primarily Serving: Jefferson, CO - Boulder, CO - Arvada, CO - Broomfield, CO |
| Middlesex Water Co (Edison, NJ)
Primarily Serving: New Brunswick, NJ - Union, NJ - Staten Island, NY - Elizabeth, NJ |
| Middlesex Water Co (Delmar, DE)
Primarily Serving: Dundalk, MD - Bowie, MD - Vineland, NJ - Baltimore, MD |
| Middlesex Water Co (Frederica, DE)
Primarily Serving: Vineland, NJ - Newark, DE - Wilmington, DE - Dundalk, MD |
| Middletown Water Billing (Middletown, OH)
Primarily Serving: Hamilton, OH - Dayton, OH - Cincinnati, OH - Springfield, OH |
| Midwest City Water & Sewer (Oklahoma City, OK)
Primarily Serving: Edmond, OK - Norman, OK - Lawton, OK - Cleveland, OK |
| Millerburg Area Authority Wtr (Millersburg, PA)
Primarily Serving: Lancaster, PA - Reading, PA - Allentown, PA - Bethlehem, PA |
| Millersburg Water & Sewer Auth (Millersburg, PA)
Primarily Serving: Lancaster, PA - Reading, PA - Allentown, PA - Bethlehem, PA |
| Mills Road Lift Station (Houston, TX)
Primarily Serving: Pasadena, TX - Missouri City, TX - Sugar Land, TX - League City, TX |
