STRATEGIC PRIORITY: Quality of Life
AGENDA DATE: June 9, 2021
COUNCIL DISTRICT(S):|910|DEPARTMENT: Office of Environmental Quality & Sustainability
EXECUTIVE: M. Elizabeth Cedillo-Pereira
______________________________________________________________________
SUBJECT
title
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 ESS WCOT OWNER LLC, located near the intersection of Lemmon Avenue and Hedgerow Drive and adjacent street rights-of-way; and an ordinance authorizing support of the issuance of a municipal setting designation to ESS WCOT OWNER 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
body
BACKGROUND
Based on information provided by the Applicant, the Designated Property is underlain by groundwater that is encountered at approximately 3 feet below ground surface (bgs) and extends down to approximately 6 feet bgs overlying the Austin Chalk. The Austin Chalk is considered an aquitard and is comprised mainly of light gray limestone chalk and marl that is expected to be approximately 300-500 feet thick. The direction of groundwater flow beneath the Designated Property is generally towards the southwest. Portions of the shallow groundwater have been affected by benzene, cis-1,2-dichloroethene (cis-1,2-DCE), methyl tert-butyl ether (MTBE), total petroleum hydrocarbons (TPH), and vinyl chloride (VC) at concentrations above groundwater ingestion standards and appear to be associated with historical onsite and offsite operations. The probable onsite source for benzene, MTBE, and TPH is likely from a historical release associated with the former underground storage tank system and former underground hydraulic lifts located on the western portion of the property. The probable offsite ...
Click here for full text