Laserfiche WebLink
MA <br /> BC&D Properties <br /> Project No.01-8.1.1 <br /> March 12,1990 <br /> Page: 2 <br /> seasonal recharge is not known at this time. However, additional monitoring will help us <br /> better understand the problem. <br /> Laboratory analytical data was obtained from the three monitoring wells in June I989 and <br /> January 1990. The June results showed that no petroleum hydrocarbons were present in the wells <br /> at the time of sampling. However,in January 1990,low amounts of gasoline and aromatic <br /> hydrocarbons were detected. <br /> A possible interpretation of this is that there is a plume of unknown size but of apparently very <br /> i low concentrations that may be moving back and forth as a discrete unit in a north-south <br /> direction. <br /> The only way of better understanding this site is to perform,more routine monitoring. The next <br /> scheduled sampling event is mid April and quarterly monitoring thereafter. It is also proposed <br /> to monitor ground.water gradient on a monthly basis to obtain a clearer picture of the site. It is <br /> proposed that this monitoring continue through 1990 and that after theJanuary 199I monitoring <br /> event is performed,that the data be reviewed and evaluated for a future course of action. <br /> I If you have any duemions or need additional information,please contact me. <br /> F <br /> Sincerely, <br /> GEOLOGICAL TE-CHNrCSINC. yP9UiIV, <br /> / n No.00901 <br /> - <br /> E*res: 6-30-90 <br /> Raynold 1. Kablanow 1I,Ph.D. <br /> Geologist/Geochemist cALISQg <br /> r-D CCQ�o 1 <br /> ® doss R. Gran%vald <br /> Ross R.Grunwald,Ph.D. 3940- 1 .•- <br /> State Registered Geologist J� MAR 2 7 i if <br /> RIK:rsb ENV1R0W."N IAL II IEALTH <br /> OF CkF <br /> FE �T'15ERV <br /> �ZI'vIICES' <br /> Mr.Rudy Del'Osso <br /> Diane Hinson-San Joaquin County Department of Environmental Health <br /> Tom Peltier-Regional Water Quality Control Board <br />