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Mr. Ken Price • - 4 - • 14 June 2004 <br /> MSRM needs to provide a Cleanup Plan that outlines maintenance tasks and schedules, diagrams the <br /> placement of existing trees, identifies any replacement or supplemental plantings needed, estimates when <br /> supplemental irrigation will be removed, and provides a Contingency Plan. The Contingency Plan <br /> should identify what criteria will identify if the phytoremediation is not providing hydraulic control of <br /> the plume, whether groundwater constituents are not being remediated, and what alternative remedial <br /> strategy should be implemented if the phytoremediation is not performing to expectations. In a 10 June <br /> 2004 conversation with Mr. Tim Souther of Geomatrix Consultants, he stated that the development of a <br /> Contingency Plan would entail reviewing third quarter sample results, developing statistical procedures <br /> to identify an exceedance threshold, and working with the responsible parties to develop a suitable <br /> remediation alternative. Therefore,please submit the Cleanup Plan with the associated Contingency <br /> Plan by 15 October 2004. <br /> Thank you for removing the core of the soil source area and proposing reasonable groundwater <br /> remediati alternatives. If you have any questions, you may contact me at(916) 464-4680. <br /> AMY RRELL <br /> Private Sites Cleanup Unit <br /> cc: Mr. Michael Infurna, San Joaquin County Environmental Health Department <br /> Mr. Alan Prouty, J.R. Simplot, Boise ID <br /> Mr. Kyle Rutherford, UNOCAL, San Luis Obispo <br /> Mr. Timothy Souther, Geomatrix, Fresno <br /> Mr. David Hahn, Crosswinds of California, Inc., Stockton <br /> Lynda Brothers, Esq., Sonnenschein Nath and Rosenthal, San Francisco <br /> Mr. Phillip Fitzwater, Iris Environmental, Oakland <br /> Mr. Michael Smith, Bennett Realty Group, Walnut Creek <br /> Mr. Timothy Bennett, Bennett Realty Group, Laguna Hills <br /> Mr. Damn Stumpf, c/o Bennett Reality Group, Inc, San Ramon <br />