Laserfiche WebLink
Kayo Status Report Page 7 <br /> May 8, 1987 <br /> The underground tanks were removed on October 301 1986. <br /> Contaminated Soil in the tank backfill and beneath the tanks was <br /> removed. Dames and Moore installed three monitoring wells on <br /> December 12, 1986. Subsequent water sampling showed minor <br /> contamination ranging from 200 to 400 ppb benzene. The report <br /> for Phase I investigation was submitted on February 3, 1987. <br /> Groundwater Technology, Inc. has conducted Phase II of the <br /> subsurface investigation. This work consisted of installing <br /> five monitoring wells near the boundary of the property and <br /> offsite near the northeast corner of the property. The final <br /> report with recommendations for remediation is due by May 15, <br /> 1987 . <br /> F <br /> Econo Station <br /> 7601 Greenback Lane <br /> Citrus Heights, CA <br /> Env. Assessment Consultants : Phase I - LBME <br /> Phase II - Groundwater Technology <br /> Remediation Consultant: Groundwater Technology <br /> This station is closed and will not be reopened by Kayo. Kayo <br /> proposes to sell this station. The underground tanks have been <br /> removed and the tank pit backfilled with clean pea-gravel . <br /> A groundwater recovery well and groundwater treatment system has <br /> been installed. The system has been operating since April 20, <br /> 1987 . The pumping rate is set very low (approximately 300 <br /> gallons per day) in order to meet the air emissions limit. The <br /> aquifer is very low yielding, however, and a higher pumping rate <br /> would probably not be appropriate. Air stripper influent and <br /> effluent monitoring is being conducted twice each month as <br /> required by the Sacramento County Air Pollution Control <br /> District . Reporting is on a quarterly basis. <br /> Groundwater Technology, Inc. has been contracted to conduct a <br /> pump test and assess the effectiveness of the recovery system <br /> and air stripper . The pump test was conducted on April 20 and <br /> 22. They will make recommendations for system improvement after <br /> they complete their testing. <br />