ARCHIVED REPORTS_XR0013013 - Laserfiche WebLink

Home Browse Search

The emphasis is on destruction of contaminants on-site through biological oxidarion. Remedia- tion is accomplished, however, without the addition of genetically engineered microbes. The FyreZvmel formulation is harmless to plant and animal life, and requires no protective equipment .� for handling or application. (See MSDS, Exhibit 4) F. Vaporization, when present, is eliminated with a non-flammable, water based volatilization agent. This agent is a blend of biodegradable emulsifiers, wetting and flame inhibiting agents which inhibit the volatilization of gasoline,jet fuels, helicopter fuels, aviation gasoline, crude oil, and most aliphatic and aromatic solvents. It eliminates the danger of fume inhalation, flammable and/or explosive conditions. A PID meter is used any time soil is disturbed to monitor vaporization. Scope of Work Two.75' X 150' bioremediation cells will be constructed in the parking lot west of the stock- piled soil. These cells will be contained by hay bale berms and lined with a flexible membrane liner protected by a six-inch sand base. The stockpiled contaminated soil will be screened to two inches. Large rocks and debris will be removed and stockpiled for disposal in a sanitary landfill. The screened soil will.be placed on top of the base-sand and spread to a maintained depth of 14" to 16". Additional contaminated soil, approxi- mately 5 feet in depth, will be removed from the excavation area, screened and placed in the biocell. Samples will be taken according to a sampling plan to ensure all contamination is identified. The ►M enzymes and water will be added and tilled into the soil as needed for 30 days. Soil-gas monitoring will be conducted with a PID meter to ensure control of all volatile organics. Vapor suppressant will be applied if vaporization is detected. The cell will be covered with a waterproof material to main- tain optimum temperature for bacterial activity and prevent excess moisture in the case of rain. The cleaned soil will be used as backfill for the excavation area. `' Permiffinct Permitting authority and local agency oversight for UST Site Mitigation is the San Joaquin County Public Health Services, Environmental Health Division (PHS/EDH) 209/468-3450. All work plans, and remediation activities will be coordinated through this agency. Workplan �- Construct two 75' X 150' flexible membrane and sand lined, berthed biocells adjacent to the stockpiled soils; Excavate the stockpiled soil, screen to two inches and place the soils into the biocells; Excavate an additional 5 ft. of soil from the original excavation site, screen and place in the biocell. x ;make_18.sbi1samples,..from,the.excava6on area; (See Exhibit 5) eight fr6it t ;