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<br />Gold }~ Dh7T Adequacy Review ]taponsa July 18, 1993 <br />ttesoenns m Adtwme~ Cellar dJab 1i 1993 <br />1. An l8-inch sill will be instened on the northwest men door an the upper level Alert win divert wash <br />water or spill water into the lower levels of the mill btrilding lather then out the door. <br />2. COM, Inc. will commit to cltaldttg ell water end other Imes prig W startup end record the inspection <br />in a mill log book that COM, Inc. has previously agreed w mairlteirl. <br />3. COM, Inc. will implement the approved reclamation plan an the face of the dam upon compkfion of <br />arnbanlanr~rt construction. <br />4. COM, Inc. will commit to removing butches of surface Boil a ary A-horizon topsoil an site and <br />placing It in topsrn7 stcekpilea or replacing dtraAy 011 azas ready for ..~rlomnlinn <br />3. 71[e perforated pope undadram systan is shown on the attaCtted sketch. <br />6. 'Ilia HDPE liner win be placed in the trench tb completely Dover the bottom of the hiQlch and wrap up <br />at least 6 inches dom the bottom an the outmode of the trench <br />7. 'The compacisd Iota subgtade w1~ be mavtUeu~ed et n mulmtttm of 3-incltea dom the bedrock floor of <br />the excavated pond. <br />8. An double welded lap joirds win be presatae feared by sealing one end of the charutd an the seam be <br />tested and plaartg an ea [[came or otlta approved pressure feed device thnxtgh the Beal stdudo Ate <br />channel between the double welds. 'Ilia channel win be tested far tmobaQtro6ed pamge of air tt®tg a <br />pump. Who- the atterutd is clew, the other aid of the chssutd to be [sled win be Cat sealed. The <br />channel svin then be prastl~ed to approl®atrJy 3apai and the v@ve closed W Are Geed device. The <br />channel sttotild s»steut the preeaure far at teat 3 minutes with a laser of no more than 3 psi. If the <br />pressure cannot be maintairted, any fealty seam areas win be repaired end the chanrld maested Ada <br />the seam is tested, the presstm Seed device win be removed and the hole rated <br />AD teat locations will be doatmatted in s tog book aril on the lirar. 'Itle log boot wrIl give the teat <br />numbs, location, date of test and testers name, along with the inmal prastre end iaul psastm. 'Ilia <br />liner will be marked with en indelible makes giving the Lest number, date, testae initials, and the <br />intetvel location. <br />7tia1 seams will be prepared a< the beginning of the laming period and at leant otter dttmtg each 6otu <br />hour period for each seaming apparahts used dualtg the day. Datuctive samples wlll also be <br />randomly oat at iiequatcy of one teat for each 300 Beet of welded seem. I)atrtrctive Leafing using <br />ASTM D-4437 irat method will be made on en trial seams and randomly cart learner. <br />Exhusian welds, or patches wffi be used in areas whore small holes oc Leafs Doerr in Ate litter or et pope <br />boots where a hot slice double seam wilder stater[ be used. Sutgk wedge hot shoe welds win be made <br />on irregular err cross seams were a hot shoe double sam welds cannel be used All welds, patctta, <br />and boots wln be tested far leaks using a vacw®box leaf. <br />'Ilia vacmmt box test saes a vacut>m box conemUng of a rigid housing with a cod neoprale gasket <br />ettaad to the bottom, a trattspetati viewing window; a valve ees®bly end gauge m oonhol and <br />indicate vaculun. A steel tank and pomp is mmmcUed To the valve aasemly. A strip of geomaobnrte <br />