Laserfiche WebLink
Mr. Arnold Hof -4 - 30 April 2003 <br /> Remediation <br /> In our 2 April telephone conversation, you stated that your remediation program of taking up <br /> nitrogen from groundwater by safflower continues. The monitoring reports should include more <br /> information on the status of your remediation program, including the season and year that you <br /> initiated the plantings, whether supplemental water is seasonally applied, and a figure depicting <br /> where the remediation is taking place. <br /> In our October 2001 meeting,you agreed to plant trees to remediate the benzene hexachloride <br /> that is detected in MW-3 on the western side of your property. In our 2 April phone <br /> conversation, you stated that these trees have not yet been planted since it was not clear where <br /> the legal property boundary was. You stated that you surveyed the property boundaries this year <br /> and you intend to plant the trees in May. <br /> Summary <br /> Thank you for conducting the monitoring and reporting and implementing crop uptake <br /> remediation as you agreed in our October 2001 meeting. The nitrate concentrations on the site <br /> are nearing the cleanup levels, and petroleum constituents are continuing to decline. However, <br /> concentrations of b-BHC in MW-3 have not changed substantially over the period of record, and <br /> we hope that phytoremediation will rectify that. However, the trees need to be planted before any <br /> improvement is expected. <br /> We look forward to seeing you install the replacement monitoring well for MW-6 and plant the <br /> trees as you agreed to in our October 2001 meeting. <br /> By 23 May 2003, please provide the following: <br /> • a schedule to deliver a work plan to install a replacement monitoring well; <br /> • a schedule to abandon monitoring wells MW-8 and MW-9; <br /> • comments on the draft MRP; and <br /> • a letter and diagram showing where the trees were planted, what species were planted,how <br /> many,whe planting took place, and how water will be initially delivered to the trees. <br /> If u have y quest' ns, you may contact me at(916) 255-3080. <br /> to <br /> yy � <br /> TERRELL <br /> Private Sites Cleanup Unit <br /> Enclosure <br /> cc: Mr. Michael Infurna, San Joaquin County Environmental Health Department, Stockton <br /> Mr. David Smith, HydroGeologic Inc., Sacramento <br />