Removal
This site located in Los Angeles, CA, involved excavation and removal of 3 Underground Storage Tanks (USTs). The site had been used as a retail gasoline station and auto repair facility. PIC oversaw the excavation and conducted vapor monitoring to ensure the safety of workers and the public. After thorough cleaning, the tanks were removed and PIC conducted soil sampling to satisfy Los Angeles City Fire Department regulatory requirements.
This site in Culver City, CA involved removal of 3 single-walled Underground Storage Tanks (USTs). The site had been used historically as a retail gasoline station and auto repair facility. Due to leaking from the USTs, PIC recommended the installation of groundwater monitoring wells to assess the extent of contamination to the relatively shallow groundwater. PIC coordinated tank removal operations through Los Angeles County Department of Public Works and groundwater well installation through the Regional Water Quality Control Board. PIC continues to purge, sample, and test groundwater at the site.
This photo shows sampling and testing of sub-slab vapor at a site in Commerce, CA. PIC installed semi-permanent sub-slab vapor pins, which were recessed and capped to minimize impacts to the tenant. Under regulatory oversight, the vapor pins were sampled and tested multiple times utilizing Summa Canisters and Nylaflow tubing. Upon regulatory closure the pins were removed and concrete repaired. Sub-slab vapor pins allow PIC to quickly and accurately assess the vapor intrusion risk at sites and ensure the long-term health and safety of workers in the building.
Soil Boring
Following a Phase I Site Assessment, PIC recommended completion of a Phase II investigation at this site in Gardena, CA. The site had been used by various machine shops and automotive parts manufacturers which utilized various degreasing solvents onsite. This photo shows PIC overseeing completion of soil borings inside a warehouse building utilizing a track-mounted direct-push drill rig. The boring is located in close proximity to an existing clarifier the former tenants had installed to meet Los Angeles County Public Works stormwater requirements. PIC completed both soil and soil vapor sampling and testing at the site, finding no significant contamination and assisting the client to sell the property.
This site is a large former dry-cleaning facility in Los Angeles, CA. PIC completed initial assessment and inspections at the property and quickly drafted a Work Plan for the property owner to assess possible contamination at the site prior to the tenant vacating. PIC’s investigation included sub-slab vapor sampling, soil borings, soil gas probes set at various depths below ground surface, ambient air testing and groundwater sampling. The site has been investigated to facilitate sale of the property and probable redevelopment.
