The client had multiple commercial spaces that were unable to be occupied due to sub-surface contamination as a result of a former dry-cleaner occupant. The soil beneath the units was contaminated and the resulting vapors emanating from the soil were contaminating the indoor air. To mitigate the migration of volatile organic vapors into the interior occupied spaces of the building, Partner performed a diagnostic testing to test the effectiveness of various system designs. Based on the results of the diagnostic testing, Partner then designed and installed a VIMS comprised of one active powered Sub-Slab Depressurization System (SSDS). Post-mitigation verification testing will be performed on a quarterly basis for the first year of operation to ensure that the system is effective.
All project work (except electrical) was performed in-house by Partner instead of utilizing any subcontractors. This was a challenge due to the timeframe and complexity of the work. However, this allowed us to maintain a high level of detail and control over the outcome of the system.
Self-performing all the vapor intrusion mitigation work increased efficiency, and the project was completed in a very short timeframe (2 weeks) because we used only Partner staff and were able to make sure all supplies were on-site and ready to be installed. This mitigated the need for change orders or delays that would end up incurring additional cost for the client. The client was very satisfied with the work and the expedited nature at which the work was completed. Now that the sub-slab vapors are actively being mitigated, the client is now free to rent out the commercial spaces.
