Nitra-Seal Protects First Responders at New State-of-the-Art Fire Station
Project highlights:
- Vapor mitigation project for new fire station with oversight from county Department of Environmental Health
- Nitra-Seal® installed to prevent vapor intrusion from volatile organic compounds, including benzene, bromodichloromethane, and chloroform
To meet growing emergency needs, a Northern California fire station was built on a former industrial site with contamination history. Listed on the Department of Toxic Substances (DTSC) Hazardous Waste site list due to a past UST leak, environmental tests found elevated concentrations of benzene, bromodichloromethane, and chloroform in soil gas, posing a vapor intrusion risk. To mitigate this, the city entered a Remedial Action Agreement with the county, which required a Vapor Intrusion Mitigation System (VIMS) to protect first responders. The environmental consultant designed a site-specific contaminant vapor barrier system using Nitra-Seal, which is applied beneath the foundation, creating a long-term barrier against vapor intrusion. The Nitra-Seal vapor barrier was installed by a Land Science certified installer and was completed in accordance with the required QA/QC procedures.
TerraShield Utilized at Industrial Facility
Project snapshot highlights:
- Industrial Facility Expansion Above Zone of TCE Impacts
- 16,000 Square Feet of TerraShield Installed
New structures are being constructed at an active industrial facility in Ohio undergoing plant expansion. The site is located above a contamination zone where trichloroethene (TCE) has impacted the soil and groundwater, creating a contaminant plume and a vapor intrusion (VI) risk exceeding U.S. EPA’s Industrial VI Standards. To address this potential VI risk, the consulting team aimed to implement a preemptive VI mitigation solution that would meet regulatory requirements without impeding the development schedule. The team selected Land Science’s TerraShield Vapor Barrier due to its high chemical resistance, excellent constructability, and competitive pricing.
New California Residences Safeguarded from Benzene and PCE in Soil Gas
Project snapshot highlights:
- New Apartment Complex on Former UST Site
- Benzene and PCE in Soil Gas
- Nitra-Seal and Passive Venting Offered Lowest-Cost, Long-Term Solution
In Central California, a former commercial site that previously housed underground storage tanks (USTs) is being redeveloped into a new apartment complex. Benzene, tetrachloroethene (PCE), and naphthalene contaminants were detected in the soil gas, creating a potential vapor intrusion (VI) risk. In response, the development team sought a preemptive VI mitigation solution that would not only meet regulatory standards but also be cost-effective and timely to implement. After weighing the available remediation options, Land Science’s Nitra-Seal passive vapor intrusion mitigation system (VIMS) was selected due to its low cost, ease of implementation, and long-term effectiveness.
Raleigh Development Protected By TerraShield
Project snapshot highlights:
- Efficiently installed 100,000 square feet of TerraShield, ensuring timely project completion.
- Provided robust protection against vapor intrusion from contaminants.
- Contributed to alleviating Raleigh’s housing shortage by enabling safe redevelopment of industrial land.
In Raleigh, NC, a new multi-family development required protection against vapor intrusion risks from nearby industrial contaminants. TerraShield Contaminant Vapor Barrier was chosen for its proven chemical protection. A Land Science certified applicator efficiently installed 100,000 square feet of TerraShield, adhering to quality assurance protocols. This project not only addressed the housing shortage but also ensured long-term safety for residents through effective vapor intrusion mitigation.
North Carolina Residential Community Protected by Nitra-Seal
Project snapshot highlights:
- Efficient installation of 134,350 square feet of Nitra-Seal despite challenging weather conditions.
- Successfully met tight construction schedules, saving time and money.
- Ensured long-term protection from contaminants like TCE, benzene, and metals.
A multi-family residential development in North Carolina, constructed near a former industrial area with TCE, benzene, and metal contamination, required a robust vapor barrier to mitigate vapor intrusion risks. The Nitra-Seal Nitrile Advanced Contaminant Vapor Barrier system was chosen for its chemical protection and cost-effectiveness. Despite heavy rains and a complex installation process, 134,350 square feet of Nitra-Seal were installed on schedule by a Land Science Certified Applicator, ensuring future residents’ safety and compliance with regulatory standards.
Nitra-Seal Enables Brownfield Redevelopment
Project snapshot highlights:
- Successfully transformed a historic mill site into affordable housing, ensuring occupant safety from vapor intrusion.
- Demonstrated flexibility in remediation strategies by adapting to specific contaminant concerns.
- Implemented a comprehensive vapor mitigation approach with Nitra-Seal®, proving efficient and cost-effective.
A historic mill site in Greenville, SC, was successfully redeveloped into a residential complex with 214 affordable housing units. The site had trichloroethene (TCE) contamination, and to protect future residents from vapor intrusion risks, a Nitra-Seal Nitrile-Advanced vapor barrier system was installed. The project involved close coordination between Land Science, an environmental consultant, and a certified applicator to ensure efficient installation and compliance with quality standards. The redevelopment provides much-needed housing while repurposing a former brownfield site sustainably.
MonoShield Protects Multi-Acre Tampa Logistics Center
Project snapshot highlights:
- Swiftly neutralized vapor threats in a Tampa logistics center
- Met safety and environmental regulatory requirements
A new, expansive logistics center/warehouse building in Tampa, Florida, was the site of a former brownfield where past operations left petroleum hydrocarbons and methane contaminants remaining in soil and groundwater. A cost-effective solution was needed to mitigate the potential vapor intrusion risk from these contaminants. The project team reviewed multiple vapor intrusion mitigation system (VIMS) options, ultimately selecting the MonoShield® Reinforced Metalized Contaminant Vapor Barrier System. MonoShield was viewed as the best available, most cost-efficient technology for the large warehouse considering the site conditions in this fast-moving construction environment. With a foundation approaching a quarter million square feet, and a tight project schedule, MonoShield’s constructability and installation speed separated it from other VI systems considered. Land Science’s technical expertise and support in assisting with the VIMS design were also significant factors in the selection process.
Former Gas Station Developed Into Quick Service Retail
Project snapshot highlights:
- Former gas station transformed into a quick service retail establishment, demonstrating effective land repurposing
- Implementation of TerraShield vapor barrier system ensures elimination of potential vapor intrusion risks, safeguarding the health and safety of occupants
In New Jersey, a former gas station was repurposed into a quick service retail store. During decommissioning, petroleum hydrocarbon contaminants were found, posing a vapor intrusion risk. To preemptively address this issue, developers installed TerraShield vapor barrier system. This proactive measure ensures the safety of workers and customers by eliminating the threat of harmful petroleum hydrocarbon vapors infiltrating the retail space, thus facilitating a secure working environment.
Automobile Dealership Grand Re-Opening Moves Foward Following Successful Vapor Mitigation
Project snapshot highlights:
- Vapor mitigation enables safe expansion near landfill at an auto dealership
- TerraShield® with TerraVent™ system prevents methane gas intrusion
- Land Science provides expert design support for employee safety
In southeast Florida, an auto dealership expanded near a landfill, facing methane gas intrusion risks. TerraShield® with TerraVent™ was deployed to mitigate vapor intrusion, supported by Land Science’s expertise. The successful installation ensures compliance, creating a safe environment for employees, and advancing the dealership’s Grand Re-opening.
Vapors Effectively Mitigated at Cold Storage Warehouse Facility
Project snapshot highlights:
- Successfully mitigated vapors at a cold storage warehouse, ensuring occupant safety
- Adapted to a mixed soil gas plume, demonstrating flexibility in remediation strategies
- Implemented a hybrid approach with MonoShield® and Nitra-Seal®, proving cost-competitive and efficient
Tackled vapor intrusion risks at a 220,000 square foot cold storage warehouse in Pennsylvania. Combining chlorinated solvents and petroleum hydrocarbons, soil gas contamination threatened future occupants. Working closely with the client, Land Science devised a hybrid solution utilizing Nitra-Seal for office areas and MonoShield for the freezer section. Despite pandemic challenges, the successful installation of these systems ensured compliance with safety and environmental regulations, securing the warehouse for industrial use.