LOCAL WATER / COMBINE, TEXAS
← City water mapCombine.
Your water report.
The source, the measurements and the context for your home. Every figure keeps its date and its paper trail.
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TEXAS WATER HOUSE IN COMBINE
Services in Combine.
UTILITY HISTORYCombine Water Supply Corp.: Dallas water via Seagoville
Combine Water Supply Corporation serves the town, but it does not treat water itself. It buys water from the City of Seagoville, which in turn gets surface water from Dallas Water Utilities, so Combine's supply passes through two neighbors before it arrives. Dallas uses six lakes, Ray Hubbard, Tawakoni, Fork, Ray Roberts, Lewisville and Grapevine, along with the Elm Fork of the Trinity River. Two of those, Ray Roberts and Lake Fork, trace to a long-range plan the Dallas City Council adopted in 1975, which authorized contracts to develop them.
Sources: Handbook of Texas: Combine, TX · Texas Municipal League directory: City of Combine (Year Incorporated 1969) · Combine Water Supply Corporation 2025 Water Quality Report · Historical marker 'Water for Dallas' (Dallas Water Utilities timeline), HMDB transcription
04 / THE SOURCE MATTERS
A clear paper trail.
Research checked October 31, 2026. This date is not a sample date. Original reports are unchanged.
EWG is the primary source for this city record. Each result retains its data period and source; supplying-utility results are identified separately. Municipal report results supplement topics where no EWG result is available.
EWG primary source
EWG Tap Water Database — Nitrate in Tap Water ↗
2013-2024
Matched EWG utility record TX0570039. Historical testing data; see individual results for their summary periods.
Supplemental source
Combine Water Supply Corporation water quality report ↗
2025
Utility report; the results marked "Municipal report" on this page are read from it.