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O4associated Geologic & Monitoring Well Construction Log
<br /> earth sciences Project Number Well Number Sheet
<br /> incorporated 170671H001 MW-1 1of2
<br /> Project Name Stormwater Infiltration Assessment Location Everett. WA
<br /> Elevation(Top of Well Casing) 301 (Est from civil site plan) Surface Elevation(ft) 301 (Est from civil site plan)
<br /> Water Level Elevation 241 Date Start/Finish 12/15/17,12/15/17
<br /> Drilling/Equipment Holocene Drilling Hole Diameter(in) 8 inches
<br /> Hammer Weight/Drop 140#/39"
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<br /> WELL CONSTRUCTION T 00 ° DESCRIPTION
<br /> f1 Locking well cap • Grass/Topsoil
<br /> Flush ground monument - Slightly moist,dark brown,silty,fine SAND,some gravel;abundant
<br /> Concrete 0 to 4 feet _ organics SM)- Vashon Lodgement Till
<br /> - 7 Slightly moist,tannish gray,silty,fine SAND,trace gravel(SM).
<br /> �I �I s
<br /> •- 5 • Vashon Advance Outwash
<br /> Bentonite chips 4 to 63 feet 5 Slightly moist,gray,fine to medium SAND,some gravel,some silt
<br /> 12 . (SP-SM).
<br /> 16 . Zone(-2 inches thick)with trace silt.Stratified.
<br /> •
<br /> _T 12 •: Slightly moist,gray,fine to medium SAND,some gravel,trace silt
<br /> I 14 . (SP).
<br /> 15 : • Layer(2 inches thick)of silty sand(ML)6 inches from sampler top.
<br /> -10 2-inch I.D.Sch 40 PVC 8 - Slightly moist,gray,SAND,some gravel,some silt(SP-SM).
<br /> casing: 0.2 to 64.6 feet - 12 • Sand grades from fine at top of sampler to medium at tip.
<br /> 13
<br /> •
<br /> -T 10 Slightly moist,gray,fine to medium SAND, some silt;fine,tan silty
<br /> I 21 : layers present(SP-SM).
<br /> 24
<br /> -15 •12 - • Slightly moist,gray,fine SAND,some silt,trace gravel;silty for 2
<br /> 15 inches in sampler tip(SP-SM).
<br /> 21
<br /> -T 14 Slightly moist,gray,fine to medium SAND,some silt(SP-SM).
<br /> I 18 Sand grades to fine in bottom of sampler.
<br /> 21
<br /> -20
<br /> 11 14 - Slightly moist,gray,fine to medium SAND,some silt,trace gravel;
<br /> 19 very moist,silty layer(4 inches thick)present in center of sampler
<br /> 22 (SP-SM).
<br /> Slightly moist,gray,fine to medium SAND,some silt,some gravel
<br /> 1 14 . (SP-SM).
<br /> 19
<br /> 26
<br /> -25
<br /> 14 Slightly moist,gray,fine to medium SAND,some silt,trace gravel
<br /> 29 : • (SP-SM):
<br /> 27
<br /> _T 14 Slightly moist,gray,fine to medium SAND,some silt(SP-SM).
<br /> I 24
<br /> 41
<br /> -30 1
<br /> 24 As above,trace gravel.
<br /> 35
<br /> 46
<br /> 00
<br /> -35 —
<br /> •
<br /> 25 • As above,some gravel,trace silt,sand bedding becomes massive
<br /> - 28 (SP).
<br /> c 13
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<br /> Sampler Type(ST):
<br /> ® 2"OD Split Spoon Sampler(SPT) J No Recovery M - Moisture Logged by: ADY
<br /> w m 3"OD Split Spoon Sampler(D&M) E Ring Sample Water Level(12/20/17) Approved by: JHS
<br /> Grab Sample CI Shelby Tube Sample 1 Water Level at time of drilling(ATD)
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