Colloid Environmental Technologies Company (CETCO)

Spray-applied methane barrier chosen as protection to homes built near oil derricks case study


Project : Aubry at Alamitos Ridge
Location : Signal Hill. CA
Products : Liquid Boot 500 Gas Vapor Mitigation System, GeoVent Gas Venting System

BACKGROUND: The site of Aubry at Alamitos Ridge single-family housing development by Lennar Homes is also the site of multiple active oil derricks.

CHALLENGE: The home builder had methane on site and needed to mitigate potential migration from the sub-slab. Active oil derricks create a constant source of potential methane nearby.

SOLUTION: CETCO, the engineer and the approved Liquid Boot installer, worked directly with the general contractor to ensure that correct design and installation would allow the project to come in under budget and within the construction schedule. CETCO solutions were chosen based on reputation, design assistance and capability of accommodating a tough construction schedule. The engineer, Geokinetics, Inc., designed a vapor mitigation system incorporating CETCO’s Liquid Boot 500 sprayapplied gas vapor barrier, CETCO GeoVent, a low-profile venting system and CETCO’s vapor barrier protectionlayer, UltraShield G-800.

RESULT: CETCO’s Liquid Boot membrane has been installed under dozens of single family homes at Aubry at Alamitos Ridge with great success. Many homes have already been purchased and the fi nals stages will be ready to be occupied by the end of 2012. CETCO products installed by CETCO trained and certifi ed installers provided the homes with proven protection against methane gas intrusion while also saving the customer time and money.

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