LOCAL WATER / SEIS LAGOS, TEXAS
← City water mapSeis Lagos.
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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03 / YOUR NEXT STEP
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Whole-house filtration
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TEXAS WATER HOUSE IN SEIS LAGOS
Services in Seis Lagos.
UTILITY HISTORYSeis Lagos Utility District: NTMWD water from Wylie
The Seis Lagos Utility District was first set up as a municipal utility district under Chapter 54 of the Texas Water Code. In 1989 the 71st Legislature converted it into a conservation, utility and reclamation district, and 1993 legislation updated its powers. It describes itself as community-owned and is overseen by an elected board. Federal drinking-water records list its supply as surface water bought from the North Texas Municipal Water District's Wylie plant, and its water quality report publishes the district's Wylie test data. The regional district was created in 1951.
Sources: Seis Lagos Community Services Association: History · Texas Almanac: Seis Lagos · Seis Lagos Utility District: About · U.S. EPA Envirofacts SDWIS: water system facilities for TX0430057 (Seis Lagos UD) · Seis Lagos Utility District water quality report (2023 data) · North Texas Municipal Water District: History
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 ↗
2021-2023
Matched EWG utility record TX0430057. Historical testing data; see individual results for their summary periods.
Supplemental source
Seis Lagos Utility District water quality report ↗
2023
Utility report; the results marked "Municipal report" on this page are read from it.