EWG's Tap Water Database: What's in Your Drinking Water?

Systems serving Dallas County, Texas

Utility name	City	People served
Dallas Water Utility	Dallas	Population served: 1,286,380
City of Desoto	Desoto	Population served: 51,700
City of Duncanville	Duncanville	Population served: 39,826
City of Garland	Garland	Population served: 236,786
City of Hutchins	Hutchins	Population served: 5,950
City of Lancaster	Lancaster	Population served: 37,550
City of Mesquite	Mesquite	Population served: 143,350
City of Richardson	Richardson	Population served: 104,300
City of Seagoville	Seagoville	Population served: 15,900
City of Wilmer	Wilmer	Population served: 4,200
Town of Addison	Addison	Population served: 15,458
City of Balch Springs	Balch Springs	Population served: 30,234
City of Carrollton	Carrollton	Population served: 127,980
City of Cedar Hill	Cedar Hill	Population served: 48,710
City of Cockrell Hill	Dallas	Population served: 4,193
Combine Water Supply Corporation	Crandall	Population served: 3,250
City of Coppell	Coppell	Population served: 41,100
Danieldale Community Water Service	Mesquite	Population served: 678
City of Farmers Branch	Farmers Branch	Population served: 31,560
City of Grand Prairie	Grand Prairie	Population served: 187,050
Town of Highland Park	Dallas	Population served: 8,564
City of Irving	Irving	Population served: 238,829
City of Rowlett	Rowlett	Population served: 59,300
City of Sachse	Sachse	Population served: 25,937
Town of Sunnyvale	Sunnyvale	Population served: 5,580
University Park	Dallas	Population served: 23,040
Dallas County Park Cities Municipal Utility District	Dallas	Population served: 0
D Bar B Mobile Home Ranch	Dallas	Population served: 196
City of Glenn Heights	Glenn Heights	Population served: 12,336
Cottonwood Creek Mobile Home Park	Glenn Heights	Population served: 228
Parkerville East Mobile Home Park	Lancaster	Population served: 50
Matthew Road Water Supply Corporation	Grand Prairie	Population served: 279
Federal Correctional Institution Seagovi	Seagoville	Population served: 2,400
Lancaster Municipal Utility District 1	Houston	Population served: 1,494
Travels End Coop	Mansfield	Population served: 30