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Jun.23. 1999 10:00AM CL BRYANT 08/22/99 119.09 FAX 3' 186 25130 No -0135 F. 3/4 Cc DEPT C.SVEZ 1102 step 5 Dmw down the wab= tabic to a dep& of 4 & above the bottom of the two loons or X fi below the apth w. N;Wc wilhdmwing dc wat{cr table, the pea gavrl may be varnoved simultaneously. Be sure that the level sof the pea gravel is vnthm abut 9 m around ihe entero planer area of the Me. As an alternate procedure, the water tahle vW be dtawn down to 1 ft. below the springline, followed by ft mmava] of the peat gravel to this same level. At dte end of this step, bath tt water table and the pea► gravel should be appn -boat ly 1 f . below the spriTiine of both twAm That is, the pda gravel has bean removed aromid bath the Good and the Dmnaged tai* to the same elevatian. Fmmn this paint on, only tba gmel ±t+trtoundiug tit, Damaged tic will ha mrnoved. The pea gravel qtcx+n� the GoM tm* should be left undrahabo& step 6 Aitach to the concrete slab adjacent to the hole, steel angles or 2 x 4 wood. Sem two cont mxm maniWAng points on the tank to det=me if tho Crood tank is mw w* daring the pwcess of removal of pan gravel around the wed tank. This sinVly wmibb tai having a cantiYmmms marker on two knovm points (such as nodes an the to ok) at the two ands of ft tank, Stop 7 After Steps S and b ate completed, dsrwawr the hula to the bottom of #bur wed tank. .Step 0 Remove pea gravel around the pa[imcuz of the Dw aged tank to a level of about 12 in. firm the b**q t. of the D magod tank. Be sura to msintsin pea gavel leswc]s around the peritzzeter of the Amager tank within b in. bring this pt+c s, monitor the two swveilla ux points des+cri`bed in Step 6. Any movement of the 4aod tank should result is stoppage of pea gravel remval around the Damaged tarJL An elumwc procedure, ouch as the insertion of sheat piling, may be to i rad. Wbi-le rem ming tim Pet grave] around the Imaged tank, continue to remove the water inside the Da=ged tank at a rate so that the levels of the woor imm& the tank acrd tip pm rwel are witl= about 8 hL Step 9 After the gavel has been owavoed slows to WxM 12 in. fzcxm the botoom of the 1Ja=ged tm ir, remove U yam ms water foam the Dzmaged tank Maintain the water in the Goo tarok at the level of tlw waUw talale as described in Step 2_ At this point, Alan rw uwa the hold down straps whirl are attached to the deaftm step 10 After Stop 9 has bean completed, lift: up the ta* using lifiing lugs as Provided by the manufWbu- r - Sup :l1 A.ftar the tw* has been rerwved from the bole, inert 'tier, inYprmis on the exposed l= g=vel and &Wm m am wmgubmes or olxst ocbom %M may be Present, nxinding the loemon of the dett,