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. ' � � z � � <br /> a <br /> � 06/2a/2BB2 15:37 5032749351 PPfIATiCNi GVLPMNT CJ PAGE 02 <br /> � <br /> (1� : ' , 1, Earth Co�ns�ultants Jnc. <br /> I <br /> June 19, 2002 <br /> E-7 0134 <br /> Pannttoni Development <br /> 7400 Southwest 5`" Ave ue, Suite 810 <br /> Portland, Oregon 97201 <br /> Attention: Mr. PatriFk Gemma <br /> Subject: Preliminalry Infiltration Evaluation <br /> � Seeway �enter, Lot 8 <br /> Merrill Cieak Parkway and Hardeeon Road <br /> Everett, Washington <br /> Dear Mr. Gemma: <br /> In accordance with yoyr request, ECI is pleased to present the results of the <br /> infil[ration evaluation fo{ the prpposed site. Based on the results of the field <br /> exploration and laboratory analyses, infiltration of stormwater coilected in the <br /> vicinity of Test Pits TP�1 through TP-6 should be feasi6le, ea�ad on the so(i <br /> conditions encountered �t the time of our field exploration and teMural analyses, <br /> infiltration In the vicinity of Test Pits TP-7 and TP-8 will not be feasible. <br /> Pro(ect peseription <br /> The suhject site is planned to be developed with up to seven commerclal �uildings. <br /> Roof downspout runoff �ill be Infiitreted a[ each building locatton. <br /> Sco e of Servfces <br /> An ECI representative erformed a site vfsft on June 4, 2002 to perform an <br /> infiltretion evaluation wiihin the proposed infiltration areas. This consisted of <br /> excavating eight test pi s within tne proposed infiltration areas to a maximum <br /> depth of seventeen (17) eet below existing grade, and representative soil samples <br /> were collected from each test pit at variable depths for leboratory analyses. <br /> Teutural ennlyses were performed on representative soif semp�es collected at the <br /> various test depths to idantif•; the best candido[e depth for Inflltration and to <br /> determine infiltratlon rates. <br /> 1n0�-toBnPlataN.:.,S�:a201.Esi!evda.IS�stngln��9E0J5 Beievus!:F3)5`.i�7c0 =nK;a25)7afi-0fi5C Tc1��4�icG61729�cE0 <br /> I <br /> �n <br />