615 75TH ST SE Geotech Report 2022-10-25

• Associated Earth Sciences,Inc. EX for n LO �,. Project Number Exploration Number Sheet ' EE120288A EB-1 1 of 1 Project Name Boardwalk Condominium Building C Ground Surface Elevation(ft) Location Everett, WA Datum IIIA Driller/Equipment Geologic Drill/Acker Date Start/Finish 8/14/19,8/14/19 Hammer Weight/Drop 140#DO" Hole Diameter(in) —Zinchps N v 5 O > Z' rn Blows/Foot WS E E5 �E o �� T m DESCRIPTION 10 20 30 40 ° Fill Hand dug to 2.5 feet. Loose,moist,light brown and olive,nonstratified,silty SAND,little fine to coarse subangular to rounded gravel(SM). S-1 Rocky drill action from 2.5 to 4.5 feet. 2 3 4 5 Loose to medium dense,moist,medium brown and brownish olive, 9 S-2 ' nonstratified,silty SAND,few gravel. 6 11 5 S-3 Sampler driven at 5.5 feet and 7 feet to assist advancing drilling. 11 12 24 12 Color change to medium brown at 7.5 feet. S-4 ----- --- P-- ______ 15 Old Topsoil Horizon?/Fill? 14 20 6 Loose,moist,medium brown,nonstratified,silty SAND,few gravel,trace organics(rootlets). S-5 5 5 9 4 10 Becomes medium dense at 10 feet. No recovery from 10 to-12.5 feet. S-6 - 5Al2 6 S-7 5 __________ _ 8 19 Weathered Vashon Ice Contact -------- 11 Medium dense, moist,brownish orange grading down to grayish olive, interbedded,fine to coarse SAND,trace to few silt,trace fine rounded gravel and minor(1 to 2 inch interbeds)of medium brown,silty SAND, trace fine subrounded gravel. 7 S-8 Iron oxide from 13 to 14 feet. 7 A3 28 N N Vashon Ice Contact o/ S-g Very dense,very moist to wet,stratified,fine to coarse SAND,trace to few 50/ E 15 silt,few fine subrounded to rounded gravel. Bottom of exploration boring at 15 feet a Sampler Type(ST): co N m 2"OD Split Spoon Sampler(SPT) No Recovery M-Moisture Logged by: FSM o 3"OD Split Spoon Sampler(D&M) U Ring Sample Q Water Level () Approved by: ca U) ® Grab Sample Z Shelby Tube Samples Water Level at time of drilling(ATD) a