WORK PLANS - Laserfiche WebLink

Home Browse Search

I ud f izi 1C,- L_ L_C_,I1 1L-r f':l l.t`,.t.!I'i. LEVINE-FRICKE Laboratory analysis conducted on soil and water samples collected will include tests of selected samples for one or more of the following: chlorinated pesticides, chlorinated herbicides, and arsenic, mercury and lead (the more persistent of the commonly- used agricultural chemicals of environmental concern) , volatile organic compounds (solvents) , and petroleum hydrocarbons. An organic vapor analyzer will be used to screen samples for the presence of volatile compounds in areas where such are suspected, and will be used as a guide in selecting the depths below the ground surface at which samples will be collected. Soil gas in areas known to contain peat layers or rubbish fill will also be screened for the presence of methane, using a field organic vapor analyzer, during augering or drilling of borings. Assuming that our revised proposal meets with the approval of Grupe Company, Copley Real Estate Advisors, and the San Joaquin County Health District, we have scheduled drilling for Thursday and Friday, November 3 and 4, 1988. We have also scheduled an underground utility check for Wednesday, November 2 , 1988. Unless otherwise advised, either myself or someone else From this office will be at the subject property at 9: 00 A.M. on Wednesday to point out our proposed sampling locations to the utility con- tractor. The cost for the utility check was not included in our budget estimate of Work order No. 1, and we estimate the cost to be an additional $ 1, 300-1, 600. under the current time frame (i.e. providing a written report of our results by November 23 , 1988) , we will not be able to include sampling of the Ripkin portion of the subject property in our scheduled field investigation. if you wish, we may be able to extend sampling by one additional day in order to collect samples from this property, but laboratory results would not be available in time to include in our November 23 report. We propose that this portion of the site be divided in halt, and an additional four borings be augered at random locations in each half. Each set of four samples would be composited as with the remainder of the site, and an additional two samples would be submitted for analysis. if you wish to proceed with this additional sampling, please let me know and we will provide you with a separate cost estimate for this work. Not including the additional cost for the utility check, the total cost for Task 5, soil and ground water sampling, is estimated to be $ 8, 500, as estimated in our Work order No. 1. The total cost for Task 6, laboratory analysis, is estimated to be $ 1s, 800 or approximately $ 500 higher than our original estimate for the Stockton site assuming a normal laboratory analysis turnaround of 10 working days. -2-