Laserfiche WebLink
I Level of protection of human health and the environment, including beneficial uses of ground <br /> and surface waters <br /> 2 Reduction of toxicity, mobility and volume of contaminants <br /> ' 3 Compliance with regulatory guidelines <br /> 4 Cost effectiveness <br /> ' 5 Short term effectiveness <br /> 6 Long term effectiveness. <br /> 7 Implementabilrty <br /> 8 Regulatory ryand Community acceptance <br /> ! 9 Impacts on water conservation <br /> Criterion 1: <br /> The excavation approaches (1 and 2) provide a lower level of protection for human health and the <br /> environment and also represent an additional threat to the shallow groundwater. Generally, the <br /> ' process of excavation results in human exposure to hydrocarbon compounds due to direct volatilization <br /> and contact with soils and dust Gwen the levels of hydrocarbons detected in samples, this effect may <br /> be significant Also, there is limited potential for further impaction of the shallow groundwater during <br /> the soil removal process A potential for impacting groundwater immediately adjacent to the <br /> ' extraction wells during vapor extraction also exists, however, this effect is small <br /> ' Criterion 2: <br /> Alternatives I and 3 will both result in reduction of toxicity, mobility, and volume of contaminants <br /> ' Alternative 2 may reduce mobility but would not reduce toxicity or volume <br /> R-042992 TIL 1 1 <br />