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DUVALL AVE. NE
NOTE:
BORING 2, (LOCATED STA 20+05) WHICH JUST
TAPPED BELOW THE TILL INTO THE
UNDERLYING OUTWASH AT APPROX DEPTH
20.5' ENCOUNTERED GAS WHICH MAY HAVE
BEEN METHANE TRAPPED IN THE OUTWASH.
THIS WILL NOT LIKELY IMPACT CONSTRUCTION
DUE TO THE THICKNESS OF LOW PERMEABLE 00
NO ADDRESS SOILS CAPPING THE OUTWASH. CONTRACTOR
SHOULD MONITOR FOR POTENTIAL PRESENCE
OF GAS IN THE TRENCH EXCAVATION AT THE
7L# 143765-0230 TIME OF CONSTRUCTION.
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CONCRETE L'_OCK
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ARE
ED SHALL BE
#13725 SE 116th ST.
REST(-: -_
ORIGINAL l
CONDITION
OR BETTER (TYP) #11606 137th AVE. NE
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TL# 102305-9112
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I rL# 102305-9305
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S-336305
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430:.. .. III:.........:.................................................................................................
425:...... ....I .:...................:.
A S— B UI L T I NFORMA TI ON BASED
UPON F/ EL D SURVEY PERFORMED
MA Y 1, 2008 BY PLS, INC.
EXPIRES 8 21 09
1 AS —BOIL T DRA WINGS
NO. REVISION
237 LF of 12" PVC :® 1.30%
SURVEYED:
DESIGNED:
MAB
DRAWN:
p MAB
qq
MAB lO-0 CHECKED:
JDH
BY DATE APPR APPROVED:
DMC
SCALE:
1 "=20'
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
430
................................I.I.1:.............................................................. 425
CITY OF DUVALL AVENUE SEWER MAIN
RSTON
DUVALL AVENUE NE
Planning/Building/Public Works Dept. NE 8 TH STREET TO NE 10 TH STREET
08-14-07
FIELDBOOK:
PAGE:
DRAWING NO:
S-3363
7O F SHEET: oF:1 1
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