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No Further Action Requirec&termination - 4 - ` 25 September 2008 . <br /> Mountain House Development Site #1 <br /> Summary: <br /> The TPH detected in soil and groundwater is highly immobile and limited in extent, defined in <br /> close proximity to the former pipelines, and will continue to attenuate naturally with time. <br /> There are no monitoring wells to be destroyed. <br /> Based on results of the site investigations/characterizations coupled with the findings outlined <br /> in the 2006 ERE, it is not anticipated that the residual crude oil remaining at the site will <br /> present a threat to human health for the construction/trench worker scenario. <br /> Consistent with SWRCB Resolution No. 92-49, alternative cleanup technologies other than <br /> natural attenuation would be infeasible and cost prohibitive since the affected area is beneath <br /> a public roadway, railroad tracks, and active pipelines. <br /> The site specific SMP acts as a management reference designating Chevron as the <br /> responsible party if any affected soil or groundwater, attributable to the historical pipelines, is <br /> encountered by construction/trench workers during future utility maintenance work. <br /> There is no assessors parcel number for the West Byron Road ROW. The Mountain House <br /> Community Services District (MHCSD) has jurisdiction and responsibility for administration of <br /> activities within the ROW. A copy of the SMP was provided to the MHCSD. <br /> The UPRR maintains responsibility for the railroad ROW and was also provided a copy of the <br /> Mountain House Site #1 SMP. <br /> No comments were received during the 30-day public notice period from adjacent property <br /> owners or owner(s) of property(ies) determined to have been affected by leaks from the <br /> historical pipelines. <br />