WORK PLANS - Laserfiche WebLink

Home Browse Search

Mr. Mike Infurna Page 2 of 3 analytes were elevated, ranging from 50 to 250 ppm. ESSI concluded that there did not appear to be any drug lab residues inside the mobile home and that it was safe for occupancy. ESSI recommended that the septic tank be drained of its contents. We understand that some or all of the septic tank contents were pumped out and are currently stored in drums on the property. We also understand that the septic system has been taken out of use. Ground Zero was retained by the current property owner to investigate whether the contents of the septic system have created soil contamination and to advise him on the most cost-effective method of disposing of the drummed septic water and any contaminated water remaining in the septic tank. Workplan The contents of the septic system would have been discharged to ground in the septic leach field. It is possible that this discharge may have significantly contaminated the underlying soil. In order to determine if toluene, or other VOCs, are present in soil at levels that might pose a health threat or risk to groundwater, we propose to conduct the following scope of work: • Locate and expose the septic system discharge line and leach lines. This task will be accomplished by the property owner using a backhoe. • Collect soil samples from the backhoe bucket from at least three locations beneath the leach fines. The samples will be collected at depths of approximately 2-5 feet below the lines. Soil samples will be field-screened for the presence of VOCs using a photoionization detector (PID). Should field evidence (odors, discoloration, PID readings) indicate the presence of significant concentrations of VOCs, additional samples may be collected at greater depths. • Submit the samples to a state-certified hazardous waste testing laboratory for analysis of VOCs by EPA Method 8260. • Collect a sample of the contents of the septic tank and a composite sample from the five drums in order to characterize the waste. Submit these samples to a state-certified laboratory for analysis of ignitability and VOCs. • Prepare a technical report summarizing the findings of the investigation for submittal to EHD. The report will include an evaluation of the magnitude of contamination, if any, and will propose appropriate steps to further define or remediate the contamination as appropriate. The report will also include recommendations for the appropriate disposal of the contents of the drums and the remaining water in the septic tank.