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<br /> r S�uwnc W.��b1,���cssuu Bnxr;sNme .Inc. MEf110
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<br /> io Mr. Leonard Astembrowskl - BE&C ENGINEERS ru+Tt 8/29/92
<br /> __y , .._ _. ._ .
<br /> FROM , Larry A, Onoratl_. � , t � L _. _ - . _ —
<br /> PROJECT gQE�NG 40:4.LZ7LE;Ni31�lEF.RINO TEST,EflSlLLTY��V�RETT WASHINOTON __,
<br /> suaecr �� cveren qe�� r.�mmomQ .. . _.. . _ —. _..
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<br /> The toliowinp is our response to the varlous C1ty ot Everett comments:
<br /> �. The setbeck}rom wetland stree.m corrldor A has bean set at 60 teet, This 60�foot butter extends
<br /> I
<br /> up the exlatinp native soll bank,whloh exceeds 25 perCent, Enpineered fill la belnp placed near �
<br /> the top oi the bank stream corrldor A lor en additlonal heipht ot approx(mately 10 feet. Thls ,
<br /> enpineered 811 meets !he EIS requlrement ot 02p Isterel ateblllty as de}Ined by the solls
<br /> enpineer, Demes & Moore, �n thelr solls reporl. From our discuasions with the Boelnp proJect
<br /> pereonnel snd City of Everett, Iit Is our �mderstandlnp that since the 60-foot setback Is belnp
<br /> sdhered to, the 25-toot setback tor the tap o1 stream corrldor A does nol apply, since we are
<br /> puttinp In enpineered flll, Plenee refer to the reaubmitted drawinga, Revision A, deted ,
<br /> September e, ie82 (refer to Drawing COEsO, Final Oreding Plan). �
<br /> 2 of 601eetC Thlsms sh�own onitlieeesubmitt d d ewinps, Reval ntA�dated`September�eet982
<br /> (reter to Drawing C080, rinal (3rading Plun).
<br /> 3 oeThiBle Ind cla�ed on t e revisedls teot d awlnqsXlRev s on A dated September BeB 892 (rale�r
<br /> to Drewlnp C200, Drelnape Plan, Submitted Wetlands f38H Recharpe calculatlons).
<br /> 4. SWMB has not devaloped a buffer Revepetative Plan, end ihis IB outside our scope of work.
<br /> If this plan ie required, and must be prepared by a qualllled wetiands blologlsUbotanlsl,we wlll
<br /> asstst Boaing and thelr wetlarnfs blologlsUbotenlat In the development of thie plan.
<br /> 5. The fatigue test slab hydraulic oil contalnment Is based upon a 25-year rainfell Inteneity and a
<br /> 3,000-gallon hydrauliC oll splli. The coalesclnp plate olVwater separators have been sized to
<br /> contefn the design splll and Independently allow the 25-yeer desipn storm to pass, keepinp the
<br /> effluent rate at or below 10 ppm. Currently, the dlsCharQe Is to the storm drainaqe syetem after
<br /> o(Uwater separetlon, An oll stap valve has been provided to insure thst the hydraulic oil Is
<br /> conteined. � ,,: t ,�,< < �, ..-,y,�,
<br /> % 3 O�%'�.
<br /> Please cafl If you have any questlons. �
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