STRATEGIC PRIORITY: Quality of Life
AGENDA DATE: September 22, 2021
COUNCIL DISTRICT(S):|910|DEPARTMENT: Office of Environmental Quality & Sustainability
EXECUTIVE: M. Elizabeth Cedillo-Pereira
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SUBJECT
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A public hearing to receive comments on a proposed municipal setting designation to prohibit the use of groundwater as potable water beneath property owned by Crow Lang West Dallas LLC, Chalk Hill Properties, L.L.C., and Alecom Properties, LLC located near the intersection of Singleton Boulevard and Chalk Hill Road and adjacent street rights-of-way; and an ordinance authorizing support of the issuance of a municipal setting designation to Crow Lang West Dallas LLC by the Texas Commission on Environmental Quality and prohibiting the use of groundwater beneath the designated property as potable water - Financing: No cost consideration to the City
Recommendation of Staff: Approval
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BACKGROUND
Based on information provided by the Applicant, the designated property is underlain by groundwater that is encountered at approximately 18 feet below ground surface (bgs) and extends down to approximately 30 feet bgs to the top of the underlying Eagle Ford confining unit that is expected to be approximately 300 feet thick. The Eagle Ford Group is considered a regional aquitard and is comprised mainly of shale, sandstone, and limestone. The anticipated direction of groundwater flow beneath the designated property is towards the northwest. A portion of the designated groundwater has been affected by tetrachloroethene, trichloroethene, cis-1,2-dichloroethene, and vinyl chloride at concentrations above groundwater ingestion standards. No potential on-site sources were identified. The likely off-site source of contamination is from the 4900 Singleton MSD (MSD No. 21) site, which consists of 4900 Singleton Boulevard/2520 Weir Street (Voluntary Cleanup Program (VCP) No. 1277) and 2627 Weir Stree...
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