San Diego, CA | 25,000 Square Feet |
The condominium complex was built on a site with soil conditions. The challenge was two-fold, to provide a waterproofing membrane on the lagging walls of a below grade parking structure and to provide a gas vapor membrane under the structural slab to prevent harmful gases from infiltrating the building. GeoSyntec Consultants specified LIQUID BOOT® under the slab and up the walls to prevent gas vapors migrating from the contaminated ground water into the building. LIQUID BOOT® performed effectively and no gas intrusion has been detected. The successful installation resulted in another condominium project directly across the street to use the LIQUID BOOT® system for its gas vapor membrane.
 
South Haven, MI | 24,000 Square Feet |
The Belgravia redevelopment consists of new town homes, built on a former manufacturing site. It was determined that past land use left residual Petroleum Hydrocarbon and Chlorinated Solvent contaminants in the soil. The mitigation system consisted of LIQUID BOOT® gas vapor membrane and an “active” venting system. LIQUID BOOT® was spray-applied to the existing slab and covered with a topping slab for the tennis court area. LIQUID BOOT® was sprayed onto a geotextile fabric and protected with LIQUID BOOT® UltraShield P-150 in the pool area.
 
San Diego, CA | 50,000 Square Feet |
Martinez & Cutri Architects of San Diego, CA designed this 124-unit condominium/retail project. Faced with minimal construction space on most of the site, the challenge was to provide a gas vapor barrier because the soils on site were contaminated with gases and required mitigation. Gradient Engineers, also of San Diego, CA, were selected as the environmental engineer to design and recommend a gas mitigation/membrane system. The intent was to design a system to keep gases from intruding into the parking structure as well as the retail center. LIQUID BOOT® was specified to protect the entire under slab and perimeter walls from gas intrusion. Swinerton Builders selected Approved Applicator Courtney Waterproofing, Inc., to install the membrane.
Cambridge, MA | 80,000 Square Feet |
Kendall Square is a 10 acre mixed use development consisting of approximately 1.3 million sq. ft. of new construction combined with two underground parking structures. The primary focus of the development is life science offices and R&D.” Kendall Square is located within the limits of a former Manufactured Gas Plant (MGP) site, making the project one of the largest brownfield redevelopments undertaken in the Commonwealth of Massachusetts. The remediation program consisted of a combination of mass excavation with off-site disposal and in-situ stabilization of the MGP residual wastes. The primary contaminants of concern (COC) were sub-surface coal tars and related products. The majority of the remediation was completed in the fall of 2001. Currently, two multi-level, life science buildings are under construction, both of which are approximately 300,000 square feet in size (gross area). The buildings are located within an area of the site that was remediated using in-situ stabilization. As a result, there are some residual organic compounds present in the sub-surface soils. To fully mitigate the potential threat of any migration of the COC's into the buildings, the RETEC Group Inc., environmental engineers for the site, designed a comprehensive vapor control system. Their design included a state of the art venting system and an impermeable vapor membrane, LIQUID BOOT®, beneath the slab. More than 75,000 square feet of LIQUID BOOT® was applied on site by Terrafix Environmental. As a spray-applied membrane, using LIQUID BOOT® simplified the difficult attachments onto the numerous grade beams, footings, pile caps, electrical conduits, VCS pipes and plumbing pipes. This not only made it possible to achieve a better seal, it also ensured maximum effic-iency on installation. As noted by Blu Alexander of Terrafix Environmental, "the use of LIQUID BOOT® resulted in savings of time, man-power and significant costs versus a sheet membrane."
 
Oakland, CA | 10,000 Square Feet |
Jack London Square is a bustling, seaside village of restaurants, shops, hotels, that are frequented by Bay Area locals and tourists alike. In 1995, a new movie theatre, the Jack London Cinema 9, was constructed as part of a mixed-use revitalization project. Past industrial use of the site resulted in residual hydrocarbons in the soil (Benzene levels ranging from 3000 to 5000 PPB). Officials at the Port of Oakland subsequently mandated that an impermeable gas vapor membrane, LIQUID BOOT®, be installed under the building as a mitigation measure. The use of a gas vapor membrane, LIQUID BOOT®, makes it possible to redevelop "Brownfields" such as this, safely and economically.
Patterson, NJ | 150,000 Square Feet |
Over 150,000 square feet of LIQUID BOOT® gas membrane was applied at the Lowes in Patterson, NJ in the summer and fall of 2006. As groundwater on site was contaminated with chlorinated solvents and petroleum hydrocarbons, engineers, CH2M Hill developed a comprehensive design to mitigate vapor intrusion issues. This included an extensive sparging/collection system which was designed to reduce concentrations. To ensure permanent protection of the building, a gas collection/extraction system was installed below the slab (LIQUID BOOT® GeoVent) along with robust gas membrane system (LIQUID BOOT®). The LIQUID BOOT® membrane was then Smoke Tested to verify that it was gas tight. Following the installation of the membrane, a gas sampling layer (LIQUID BOOT® UltraDrain 9000) was placed above the system, which allows for continuous monitoring and manitenence of the system as needed.
Queens, NY | 25,000 Square Feet |
The Queens Vocational School project was an addition to the exiting structure. Residual VOCs in the soil warranted the use of a gas vapor membrane system. LIQUID BOOT® was the specified gas vapor barrier for this project due to its cost effectiveness and ease of installation. Langan Engineering, along with CETCO Remediation Technologies, designed a mitigation system which consisted of the LIQUID BOOT® gas vapor membrane system. LIQUID BOOT® Approved Applicator, EAI Inc. out of Jersey City, NJ, spray-applied LIQUID BOOT® gas vapor membrane onto a geotextile fabric under the slab provided an impermeable gas vapor barrier that will keep methane out of the building.
Oakland, CA | 25,000 Square Feet |
Thomas Berkeley Square located in Oakland, CA is located just adjacent to a plume of PCE and TCE. This plume can potentially travel on to the sire of this newly constructed office building. LIQUID BOOT was installed as a way to project the owners and builders long term liability on the site. Treadwell and Rollo recommended the possible need to install LIQUID BOOT due to the potential of the plume to travel onto the site in the near future. Hensel Phelps was an awarded a design build contract for the office building and we told of the potential risks. Each side debated the potential use of LB and the conversation came down to “Why should we not install LIQUID BOOT along with a venting system?” No answer could be determined, the cost of installing a proven barrier system now, far out weighed the potential risks of having to address any human health issues later on in the project.
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