Brownfield Development Success – Uptown Development – Traverse City, Michigan

Uptown Riverfront Development, is an upscale residential townhome and mixed-use (live-work) commercial development located on the Boardman River in Traverse City, Michigan. Grand Traverse County’s Brownfield Redevelopment Authority was awarded $800,000 in Community Development Block Grant funds from the State of Michigan for demolition/blight removal to segue for the redevelopment. Environmental investigations were conducted at the site as part of the purchase and redevelopment process. Chlorinated volatile organic compounds (CVOCs) were identified within the subsurface which appeared to be from historical operations at the site. These CVOCs were identified above Michigan Department of Environmental Quality (MDEQ) vapor intrusion screening levels. Therefore, as part of the Brownfield Redevelopment, a vapor mitigation system was determined to be necessary. Land Science assisted the environmental consulting firm, AKT Peerless, with the design of the system and provided both the vapor barriers (Geo-Seal®and Retro-Coat™) and subsurface ventilation (Vapor-Vent™) for the necessary buildings requiring mitigation systems at the site. The development is now nearing completion, with Phase 3 of the project to be completed by Spring 2017. Uptown Development TC, LLC’s, Project Manager, Mike Wills stated, “Without Land Science’s Geo-Seal and Retro-Coat vapor barriers, our redevelopment of a downtown Traverse City, Michigan Brownfield Site into upscale residential townhomes would have been impossible”.

Land Science’s team of vapor intrusion experts have provided vapor intrusion and mitigation solutions at numerous sites across the nation. See more successful case studies including award winning and nationally recognized Brownfield sites, industrial, commercial, and residential developments.

Brownfield Development Success - Uptown Development – Traverse City, Michigan

Brownfield Development Success - Uptown Development – Traverse City, Michigan

Brownfield Development Success - Uptown Development – Traverse City, Michigan

Big Box Retail Store Receives “No Further Action” Status after Geo-Seal® Application

Geo-Seal was selected to mitigate vapor intrusion at a new retail development in Skokie, Illinois. The former industrial site was contaminated with chlorinated solvents (PCE, TCE, DCE and VC) and regulatory agencies required mitigation. A developer purchased the underutilized 15-acre light industrial business park for redevelopment and initial due diligence investigations identified numerous environmental issues on the property.

Kentucky Division of Waste Management Approves Geo-Seal® for Mitigating Vapor Intrusion to Redevelop Brownfield Property

Kentucky Brownfield
Chlorinated solvents were discovered in the subsurface soil and groundwater beneath the proposed construction area and caused concern over potential indoor air vapor within the housing complex.

 

 

Project Highlights

  • Approved by Kentucky Division of Waste Management
  • Approximately 142,000 square feet installed at brownfield site allowing for redevelopment to move forward
  • Triple layer protection from chlorinated solvent vapors provides safe and reliable barrier for student housing

Project Summary

lst-kentucky-2Student housing was to be constructed in Louisville, KY over 42 acres of vacant Brownfield property. Chlorinated solvents were discovered in the subsurface soil and groundwater beneath the proposed construction area and caused concern over potential indoor air vapor within the housing complex. Terracon Consultants, Inc. specified Geo-Seal® Vapor Intrusion Barrier and Vapor-Vent Trenchless Venting System in their risk management plan.

The Kentucky Division of Waste Management under the Kentucky Department of Environmental Protection evaluated the Geo-Seal vapor barrier along with other membranes and determined Geo-Seal to be an “excellent vapor intrusion barrier system” based on its ability to resist contaminant permeation and breakthrough. 142,000 square feet of Geo-Seal successfully installed.

Technology Description

Geo-Seal is a gas vapor management technology designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically-resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapors from permeating through the slab. By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of site remediation and expediting site construction.

Vapor‐Vent is a low profile vent system that can be used in lieu of slotted PVC pipe. The speed of installation and the proximity of the vent to the barrier provide cost savings and performance benefits compared to other technologies.

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Geo-Seal® Receives State Approval From California Department of Toxic Substances Control

Califrnia Geo-Seal
Overseeing the installation were representatives from the DTSC and
Commercial Roof Management, a certified inspector of the Geo-Seal
System.

Project Highlights

  • Geo-Seal® resists contaminant permeation breakthrough for a period 18X longer than simple asphalt/latex membranes
  • Installation of 22,000 square feet
  • California DTSC Approved

Project Summary

A senior housing facility was constructed over an existing benzene plume creating a concern for exposure to high levels of benzene vapors. Northgate Environmental, with the approval of the California Department of Toxic Substances Control (DTSC), selected Geo-Seal® vapor intrusion barrier to mitigate the vapor intrusion risk associated with the property.

 

California ToxicGeo-Seal provides triple-layer protection and high puncture resistance by using two chemically resistant high density polyethylene (HDPE) layers encapsulating a spray-applied asphalt/latex membrane. Geo-Seal’s exceptional chemical resistance limits the transmission of volatile organic vapors through the membrane. 22,000 square feet was successfully installed at the site.

Overseeing the installation were representatives from the DTSC and Commercial Roof Management, a certified inspector of the Geo-Seal System.

Technology Description

Geo-Seal® is a gas vapor management technology designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically-resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapors from permeating through the slab.

By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of site remediation and expediting site construction.

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Historic Site Transformed into Multi-Million Dollar Community Complex Following Installation of Geo‐Seal®

Dayton, Ohio Kroc Center
Geo-Seal’s proprietary formula, installation procedures and specialized
equipment allowed the product to be installed in cold climate without
the use of artificial heat.

Project Highlights

  • Approximately 100,000 square feet installed over four buildings in new Dayton, OH community complex
  • Geo-Seal® CORE material successfully applied in 25 degree temperatures without artificial heating
  • As part of the total square footage, applied 16,000 square feet to retrofit the basement of a +100 year old historic mansion
  • Triple-layer protection provides maximum vapor intrusion protection to site

Project Summary

The Salvation Army Kroc Center is a multi-million dollar community complex on 17.5 acres. Dayton, OH was one of 29 cities to receive funding from the 1.1 billion dollar donation of the Ray Kroc Family for the development of community centers across the United States.

Environmental concerns arose from a neighboring groundwater plume migrating from a former industrial facility. Geo-Seal Vapor Intrusion Barrier and Vapor-Vent trenchless vent system were applied to protect the building from the threat of chlorinated solvent vapor intrusion and alleviate vapor buildup beneath the facility. The application was completed in November during 25 degree temperatures.

Geo-Seal’s proprietary formula, installation procedures and specialized equipment allowed the product to be installed in a cold climate without the use of artificial heat, saving the client considerable time and money.

Dayton Salvation ArmyTechnology Description

Geo-Seal is the ideal blend of chemically resistant high density poly-ethylene (HDPE) sheeting and spray applied membrane technologies, resulting in the most appropriate vapor intrusion barrier technology available to eliminate vapor intrusion into structures built on environmentally impaired sites.

Geo-Seal is a composite system installed between the subgrade and building foundation to seal off exposure pathways and prevent toxic vapors from migrating into structures. By selecting Geo-Seal, developers can ensure a healthy indoor air
environment while reducing the cost of site remediation and expediting site construction.

 

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Geo-Seal® and Vapor-Vent Approved to Protect Urban School Complex from Harmful PHC and cVOC Contaminants

Oakland Vapor Intrusion
An excavation remediation plan was implemented on-site to dispose of the majority of the contaminated soil and groundwater.

Project Highlights

  • Geo-Seal® applied to 40,000 square feet of new construction
  • Geo-Seal and Vapor Vent approved by California Department of Toxic Substances Control

Project Summary

A former manufacturing facility site in Oakland, California was contaminated due to years of engine repair, vehicle maintenance and fuel storage that took place on the property. The site is currently being used as a school complex and the Oakland Board of Education approved construction of a modern facility. However, after a site assessment was completed, it was determined that high levels of petroleum hydrocarbons, PAHs and chlorinated solvents were present.

Vapor Intrusion Oakland SchoolNinyo and Moore prepared a Removal Action Work Plan and Operation and Maintenance plan for approval by the California Department of Toxic Substances Control. An excavation remediation plan was implemented on-site to dispose of the majority of the contaminated soil and groundwater. A vapor mitigation system was utilized to avoid any potential inhalation risk that remained. Geo-Seal and Vapor-Vent were applied to 40,000 square feet of new construction to mitigate the vapor intrusion risk and meet regulatory requirements. Vapor-Vent was installed passively with the ability to activate in the future, if needed. Vapor ports were installed on-site and vapor sampling will occur quarterly for one year. After four sampling events, continued monitoring will be evaluated. A five-year review is also planned per state law requiring review if hazardous substances remain in place and will ensure the remediation and mitigation is functioning properly and maintained.

Technology Description

Geo-Seal is a gas vapor management technology designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically-resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapors from permeating through the slab. By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of site remediation and expediting site construction.

Vapor‐Vent is a low profile vent system that can be used in lieu of slotted PVC pipe. The speed of installation and the proximity of the vent to the barrier provide cost savings and performance benefits compared to other technologies. Vapor ‐Vent can be installed to passively or actively vent vapors from under the building. The movement toward energy efficient buildings and the cost to maintain active venting systems make passive systems an attractive alternative. In addition, a passive system can be converted to active if needed.

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Large Manufacturing Facility Addresses Migrating cVOC Plume with Geo-Seal®

Manufactuing Facility Vapor Barrier
A 104,000 square foot manufacturing facility required the use of a vapor barrier due to migrating chlorinated solvents in groundwater.

 

 

 

 

Project Highlights

  • Geo-Seal®‘s triple‐layer protection consisted of spray‐applied membrane encapsulated with HDPE providing chemical resistance and ease of application
  • 100,000 square feet of barrier successfully installed in 10 days, saving the owner three weeks of costly labor compared to the originally specified PVC sheet
  • Smoke testing procedure ensured integrity of barrier and installation

Project Summary

Vapor Barrier Manufacturing FacitilyA 104,000 square foot manufacturing facility required the use of a vapor barrier due to migrating chlorinated solvents in groundwater from a nearby plume. In addition to the vapor barrier, a 30 mil battened and welded PVC sheet was also specified for enhanced protection which required an extended installation time. Five weeks were estimated to install the PVC sheet due to a complex 20,000 square foot office area adjacent to the manufacturing facility.

To save time while delivering a safe and effective solution, Geo‐Seal Vapor Intrusion Barrier was installed and eliminated the need for the PVC sheet installation. Geo‐Seal contains a triple layer protection that includes a 60 mil spray-applied asphalt/latex layer encapsulated with two layers of high density polyethylene, providing a system that is chemically resistant yet easy to install.

Our certified applicators implemented a smoke test for quality control to identify any voids not seen by the naked eye to ensure the integrity of the membrane. The Geo-Seal system was successfully installed in ten days, saving the owner three weeks of costly labor.

Technology Description

Geo-Seal is a gas vapor management technology designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically-resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapors from permeating through the slab.

By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of site remediation and expediting site construction.

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Upscale Grocer Selects Geo-Seal® to Protect Key Property Against Presence of Methane and VOCs

Grocer Selects Geo-Seal

Land Science®, a leader in providing cost-effective, industry-leading vapor intrusion mitigation solutions, was chosen by a leading upscale grocer to provide a vapor mitigation system to protect against the presence of methane and volatile organic compounds (VOCs).

The grocer selected Geo-Seal for this project due to its proven performance for blocking VOCs on hundreds of sites with the lowest diffusion rates in the industry.

Ultra Premium Grocer Driven by Need for Safest Barrier Solution for Commercial Site

The installation of the Geo-Seal Vapor Intrusion Barrier under the grocery store was triggered by the adjacent property, which had a history of being used as a landfill. The grocer, which had developed a reputation for providing ultra-premium, high quality foods, had concerns when testing revealed the presence of methane, along with volatile organic compounds. The supermarket undertook a proactive interest in addressing the vapor intrusion since it was to be the anchor store for a large commercial site.

Advanced Technologies and Proven Success Made Geo-Seal the Right Choice

A significant factor in the selection of Land Science for the project stemmed from the Company’s past success in site treatment of high traffic locations, which include Quick Service Restaurants (QSR), gas stations, dry cleaners, and Brownfield sites. In addition, the supermarket chain recognized Land Science for their advanced technologies, cost-effectiveness, and reputation for providing successful, evidence-based outcomes within the restaurant and food services industries.

lst-grocer-2Proactive Approach Provides Safe Environment for Future Tenants

During the redevelopment process, the historic use of a site, or adjacent sites, oftentimes leads clients to take a proactive approach in mitigating various land reuse issues, such as vapor intrusion. Part of that approach can include the remediation of the site and the installation of a vapor intrusion barrier to prevent the potential for residual vapor contaminants from migrating into the new structure. Typically, the need for a vapor intrusion barrier stems from various regulatory requirements, demands by legal counsel, or requirements from lenders.

Throughout the Company’s history, our experience in the retail food service industry has shown that the installation of the Geo-Seal vapor intrusion barrier has met, or at times, surpassed the requirements of the site, and provided a “safe” environment for future retail supermarket tenants of the property.

Tested to be the Most Protective Gas Barrier in the Industry

Geo-Seal is the ideal blend of chemically resistant HDPE sheet and spray-applied membrane technologies designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Unlike simple sheet barriers, Geo-Seal utilizes a spray-applied core layer that completely seals penetrations while being sandwiched between two layers of protective high density polyethylene.

This vapor intrusion mitigation approach is unlike any other barrier technology on the market today and has been tested by third party laboratories to be the most protective gas barrier in the industry.

About Geo-Seal Description

Geo-Seal® is a gas vapor management technology designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically-resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapors from permeating through the slab.

By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of site remediation and expediting site construction.

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Land Science Builds Impressive Track Record with Geo-Seal in QSR Category

quick service restaurants need vapor mitigation solutionsAs a leader in providing cost-effective, industry leading technologies to engineering firms and real estate developers across a broad range of categories, Land Science continues to forge a history of successful outcomes in sustainable land development for the Quick Service Restaurant (QSR) industry.

Geo-Seal has been used on the installation of numerous prominent national fast-food chain restaurants and premium restaurants across the US for several years. These national chains, many of which enjoy a stellar reputation based on providing fresh, organic, and/or locally sourced foods, rely on Land Science to provide the latest technology and results-based solutions for their site redevelopment plans.

In most cases, our QSR clients are interested in the redevelopment of high traffic locations where, typically, gas stations, dry-cleaners, manufacturing, or even brownfield sites exist. During the redevelopment of these locations there is an understanding of the historic use of the site, prompting our clients to take a proactive approach in mitigating vapor intrusion. Part of that approach can include the remediation of the site and the installation of a vapor intrusion barrier to prevent the potential for residual vapor contaminants from migrating into the new structure.

The need for a vapor intrusion barrier on these sites can have several different drivers, from regulatory requirements, to legal counsel, to requirements from lenders. Throughout the past several years, our experience within the QSR and premium restaurant industries has shown that the installation of the Geo-Seal vapor intrusion barrier has met or even surpassed the requirements of the site, and provided a safe environment for future QSR tenants of the property.

About Geo-Seal Vapor Intrusion Barrier

Geo-Seal is the ideal blend of chemically resistant HDPE sheet and spray applied membrane technologies designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapor from permeating through the slab.

By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of the site remediation and expediting site construction.

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Major Airline Installs Geo-Seal® to Successfully Expand Maintenance Facility

Geo-Seal vapor intrusion solution at airport
A vapor intrusion barrier was sought to protect the new structure from potential vapor intrusion and keep the project on schedule.

 

Project Highlights

  • Triple-layer protection and high puncture resistance addressed concerns over permeation into the building
  • Enhanced chemical resistance over spray-applied asphalt/latex material
  • Installation of Geo-Seal® allowed project to remain on schedule
  • Vapor-Vent trenchless system installed to collect and vent vapors from beneath the structure

 

 

Project SummaryDallas Love Airport Vapor Intrusion

The Dallas Love Field airport originally opened in 1917 and has over 90 years of aviation use. A major airline decided to expand their current facilities at Love Field which included the construction of a new maintenance facility. An underground storage tank was discovered prior to construction and insufficient historical site records caused concern for potential indoor air vapor in the new building. A vapor intrusion barrier was sought to protect the new structure from potential vapor intrusion and keep the project on schedule.

TITAN Engineering along with their client selected Geo-Seal Vapor Intrusion Barrier based on its enhanced chemical resistance and industry leading 20 year system warranty. The Geo-Seal triple layer protection allows for resistance of contaminant permeation breakthrough for a period 18X longer than that of simple asphalt/latex membranes.

Under a system warranty, Land Science warrants the integrity of the material and the workmanship of the certified Geo-Seal installer against chemical migration into the building.

Technology Description

Geo-Seal is a gas vapor management technology designed to eliminate vapor intrusion on Brownfields or any type of environmentally-impaired site. Geo-Seal is a chemically-resistant material placed between the foundation of the building and the soil pad to eliminate vapor intrusion pathways and stop contaminant vapors from permeating through the slab.

By deploying Geo-Seal, developers can ensure a healthy indoor environment while reducing the cost of site remediation and expediting site construction.

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