ARCHIVED REPORTS XR0001493 - Laserfiche WebLink

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t ASSOCIATES Won Ev*wy IN PAgTT+IEHSHkp WITH dHE ENVIRONMENT 1 AUGUST, 1991 9Yti MR t ) I i�. STEVEN K. SCHNEIDER, REHS r SAN JOAQUIN COUNTY AUG 0 1 'nql ENVIRONMENTAL HEALTH DIVISION ENVIRONMENTAL HEALTH 445 N. SAN JOAQUIN STREET PERMIT/SERVICES STOCKTON, CALIFORNIA 95201 DEAR STEVE, IN RE' 1634 E. CHANNEL STREET STOCKTO L FQRUTA ADDENDUM TO VORKPLAN i PURSUANT TO OUR CONVERSATION, AND IN ACCORDANCE WITH ALL PREEXISTING = F CONDITIONS, WE RESPECTIVELY REQUEST THAT WE MODIFY THE EXISTING WORW LAN t AS FOLLOWS. WE PROPOSE THAT ADDITIONAL EXCAVATING BE DONE ON THE NORIHwLST •� � CORNER OF THE EXISTING EXCAVATION ACCORDING TO THE DRAWING ATTACHED. PRIOR SAMPLING, CARRIED OUT UNDER YOUR DIRECTION HAS INDICATED THAT THE LATERAL NORTHWEST CORNER AT APPROXIMATELY 15 FEET ON THE SIDEWALL IS STILL SHOWING SSD PPM TPH AS DIESEL. THIS IS THE ONLY REMAINING AREA WHICH ANALYTICAL DATA HAS INDICATED IS NOT "ID. - WE PROPOSE TO OVEREXCAVATE AN AREA APPROXIMATELY 25 SQUARE FEET OF THE NORTHWEST CORNER TO A DEPTH OF APPROXIMATELY 21 FEET(BOTTOM OF EXISTING EXCAVATION) . THE PROPOSED OVEREXCAVATION WOULD TOTAL APPROXIAMTELY 21 CUBIC YARDS PROVIDING THE PID AND 'VISUAL OBSERVATION INDICATE IT WOULD APPEAR THAT NO ADDITIONAL CONTAMINATION IS OBVIOUS. SIE WOULD REQUEST THAT OUR ADDENDUM INCLUDE THE OPPORTUNITY OF DIGGING UP TO APPROXIMATELY 50 CUBIC YARDS IF ON SITE INSPECTION INDICATED ADDITIONAL MINOR OVERECAVATION WOULD CURE THE CONTAMINATED AREA. WE WOULD ANTICIPATE THAT SAMPLING WOULD BE READY TO BE PERFORMED BY 10 AA ON 2 AUGUST, 1991 AND HAVE CONFIRMED THAT THE GEOLOGIST IS AVAILABLE. IIE VERY MUCH APPRECIATE YOUR CONTINUED CONSIDERATION. YOURS TRUL . JJH/NB VICE DRESIDENT�D` I RONMENTAL MANAGER Fl cF P 0 Sox 1257 • Stockton, Caiiforma 95201 • Number One, Port Road 21, Port of Stockton Stockton California 95203 (209)463 7108 • FAX(208) 463 2712