Laserfiche WebLink
r✓ %woe <br /> Page 2 of 2 <br /> There is no way any additional excavation can be done on <br /> the North side wall of tank pit #1 , unless the corner post <br /> adjacent to the hole which is one of only two supports holding <br /> up the main building roof extension, were to be removed. The <br /> property owner, Mr. Patel does not wish to remove this roof <br /> extension because of its size and it being a major functional <br /> asset to the main building. Also, due to the type of <br /> construction, the removal of it would cause damage to the main <br /> building. <br /> It is our recommendation that in situ remediation of this <br /> area be pursued. We would recommend drilling 2 holes, one on <br /> either side of the roof support to a depth to equal the bottom <br /> of the excavation, and fill these bore holes with pea gravel. <br /> Also, to inject hydrocarbon hungry bacteria at approximately <br /> each two foot of depth as the hole is filled. The top two feet <br /> of the holes to be grouted solid. This would then entail a <br /> boring or two, a few months in the future to sample and evaluate <br /> the progress of this remediation. Also we would recommend that <br /> this excavation not be capped over with pavement at this time. <br /> Having been filled with pea gravel, a natural aeration is and <br /> will continue to reduce the concentrations in the adjacent soils. <br /> we would appreciate your comments to this approach at your <br /> earliest convenience, prior to our proceeding. <br /> Meanwhile we are making application to the San Joaquin <br /> Valley Air Pollution Control District for permission to aerate <br /> the soils stock pile on site. <br /> Sincerely, <br /> eith A. al ia, resident <br /> ON <br /> A- T,9 ql9 <br /> cc: Surrendra F. Patel <br /> J91 -70 file No.1781 7 vi <br /> o EX � �^� <br /> s9T�of GAOF��`��� <br />