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Working To Restore Nature <br /> O Criterion 7. <br /> This alternative would have nmplementabilnty problems due to the time involved in <br /> ' obtaining permits for the groundwater extraction system, system design and <br /> installation. <br /> o Criterion 8: <br /> ' Impact to businesses during installation and other site activities would be minimal <br /> and should meet with public and regulatory acceptance. <br /> Alternate,ve 3, Groundwater Extraction and Passive Soil_Remediation <br /> ' o Criterion 1. <br /> This alternative has limited health-based risks. Petroleum hydrocarbons are removed <br /> ' from extracted groundwater prior to discharge minimizing the risk of human <br /> exposure. The potential fire or explosion hazard should be minimized with a <br /> properly designed system. <br /> i <br /> 1 o Cntenon 2: <br /> ' Tlus alternative would reduce the toxicity, mobility and volume of contaminants in <br /> groundwater. Reduction in soils would be accomplished over time through natural <br /> biodegradation processes, but the timeframe is unknown. <br /> ' o Criterion 3: <br /> This alternative can be implemented within regulatory guidelines <br /> o <br /> Criterion 4: <br /> ' This alternative would require some capital outlay to implement. Capital costs are <br /> associated with installation of groundwater extraction well(s) and associated piping, <br /> ' installation of the treatment system and compound, and permitting, and could <br /> 15MMEMRMCAP-0794 DRF 21 <br />