05-102377 (2)4, �/- 0 C- efnL-U
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200 081
CUSTOMER
EA
PAG8001 OF 001
KINGSCOUNTY, UP
EASEMENT
32.00
required by the Washington State Auditor'slRecorder's Office (RCW JC. 18 and RCW G5.04, 1/97)
(Print last name first.)
Reference No. (if applicable):
Granto(s) (1): Amorsolo Panlasigui (2) Rita Panlasigui
Gratttee(s) (1): Amorsolo Panlasigui (2) Rita Panlasigui
Legal Description (abbreviated): Lot 1 and 2 of KCSP 491107
Assessoes Property Tax Parcel/Account Nos: 053700(1623; 0537000625
For valuable consideration, receipt of which is hereby acknowledged, the Gramtors) Amorsolo Panlasigui and Rita Panlasigui,
owners of Lot 2 of King County Short Plat Number 481107, tax parcel number 0537000625, hereby grant and convey to the
Grantee(s) Amorsolo Panlasigui and Rita Panlasigui, owners of Lot I of King County Short PIat Number 483107, tax parcel
number 0537000623, their successors and assigns, the right, privilege and authority for an ingress, egress, and utilities casement;
and to construct, improve, repair and maintain utilities across, over, under, and upon said ingress, egress and utilities easement
located in King County, State of Washington, to wit:
The east 2W of Lot 2 of King County Short Plat NO.481107, Recorded under King County Recording Number
820506W6; Except the South 12 feet of said Lot 2 Deeded to the City of Federal Way for Street Purposes tinder
King County Recording Number 9806152386.
In exercising the rights herein granted, the Grantee(s), their successors and assigns, may pass and repass over said easement
and may cut and remove brush, trees and other obstructions which in the opinion of the Grantee(s) interferes) with maintenance
and repair or installation of utilities or access. Any trees, shrubs or fences removed will be replaced at the grantees' expense or at
the expense of the utility maintenance contractor_
The covenants herein contained shall run with the land and are binding upon all subsequent owners thereof in Witness whereof;
the said Grant this it this day of 20— —
Grantor Grantor
STATE OF WASIIINGTON
`/ SS. (INDIVIDUAL ACKNOWLEDGEMENT)
County of f— 1 r'j
V
I certify that I ]mow or have satisfactory evidence tha� �- S v l 0 A-rJ U ;21 TA ?AN LAS t � the persorywho
appeared before me, and said person acknowledged that signed this instrurrren and acknowledged it
to be free and voluntary act for the uses and purposes mentioned in the instrument.
i(, AvGVST
20 o S
STATE OF WASHNGTON
TERRANCE Re WILSON
My•Appointment Expires May 1, 2006
EXCISE TAX NOT REQUIHW
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Print Name t L
Notary Public in and for the State of tN A
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'. 945 N CEHfRAL�"51t. 7104, KENT, WA 98032 � dA
[753}'s-S•2-AA${! (10� Or 1-(800)251-0189 (toll free) '}
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SURVEYOR'S CERTIFICATE
INS UAP CORRECTEr REPRESENFS A SURVCY uuOE By
UE OR UNDER qT DIIIECTION IN CONFORMA.•ICE WIT" THE
REOutf'll ttN15 OF THE SURVEY RECDRWNG ACT AT THE
3E611ESF OF ALA- kitic0 —
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F._.5• CERTIFICATE NO -- +DUI
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RECORDER'S CERTIFICATE
FILED FOR RECORD THIS 09 DAY OF P001). 20q�-
AT��N VOLUME I�R OF SJ�r-/C
AT PACE VG
AT THE RFQUFST OF
L w s-
RECORD NO.. _—
0 5-102377
�. ,
REPORT OF n TUA s D
PROPOSED ADULT FAIVA-VUOMf20,5
FEDERAL WAY, WASH NGTON
S&EE JOB NO.528
JULY 28, 2005
528rpc S&EE
S&EE
SOIL & ENVIRONMENTAL ENGINEERS, INC.
16625 Redmond Way, Suite M 124 Redmand Washin on 8052 425 1 868-5868 FAX 425 868-7427
July 28, 2005
W. Amor. Panlasigui
9251 S. 204'' Street
Kent, WA 98031
CC: Mr. Ren Franco
Report of Infiltration Study
Proposed Adult Family Home
Federal Way, WA
S&EE Job No. 528
Dear Mr. Panlasigui:
We are pleased to present herewith our Report of Geotechnical Investigation for the referenced project. Our
services were authorized by you on July 19, 2005 and have been provided in accordance with our proposal
dated July 18, 2005.
We appreciate the opportunity to provide our services. Should you have any questions regarding the
contents. of this report or require additional information, please call.
G
28166 �
GISTEK`'�'
ONAL
ors: %vDJ. Zook
528rpt
Very truly yours,
SOIL & ENVIRONMENTAL ENGINEERS, INC.
C. J. Shin, Ph.D., P.E.
President
7-ZAP- °S.'
S&EE
TABLE OF CONTENTS
Section
Page
1.0 INTRODUCTION............................................................................................................................................... I
2.0 SCOPE OF SERVICES ................. :..................................................................................................................... I
3.0 SITE CONDITIONS............................................................................................................................................ 2
4.0 INFILTRATION.................................................................................................................................................. 3
4.1 IN -SITU INFILTRATION TEST.:.................................................................................................................... 3
4.2 INFILTRATION RATE PER KING COUNTY SURFACE WATER MANUAL ............................................. 3
5.0 CONCLUSIONS................................................................................................................................................... 4
FIGURE 1: SITE LOCATION MAP
FIGURE 1: SITE AND EXPLORATION PLAN
APPENDIX A: FIELD EXPLORATION LOGS AND KEY
528rpt i S&EE
REPORT OF INFH,TRATION STUDY
PROPOSED ADULT FAMILY HOME
FEDERAL WAY, WASHINGTON
for
Mr. Amor Panlasigui
1.0 INTRODUCTION
We present in this report the results of our infiltration study for the referenced project which is located at
2016 South 312'h Street, Federal Way, Washington. We understand that the proposed development will
involve a single -story building with an attached garage and surface parking. A storm water infiltration
system is proposed along the west side of the property. This system includes a 6-inch diameter, perforated
pipe in a gravel -filled trench. A site location map is shown in Figure 1 and a site plan is shown in Figure 2,
which are included at the end of this report.
2.0 SCOPE OF SERVICES
The purpose of our study is to provide recommendations regarding the design of the storm water infiltration
system. Specifically, our services included:
1. Exploration of soil and groundwater conditions underlying the site through the excavation of 2 test
pits, TP-1 and TP-2.
2. Performance of three onsite infiltration tests per King County Surface Water Manual.
3. Engineering evaluation of the infiltration rate for the design of the infiltration system.
4. Five copies of this written infiltration report which contain a site plan, test pit log, a description of
subsurface conditions, and our findings and recommendations.
S&EE
s2arpt
3.0 SITE CONDITIONS
The project site is located in a residential area. The site surface is flat and covered with grass and
sparse trees. The ground surface at the west neighbor is about one to two feet lower than the site surface.
The soil conditions underlying the area of the infiltration trench were explored by the excavation of 2 test
pits, TT-1 and TT-2 on July 22, 2005. The approximate test pit locations are shown on Figure 2. Details of
the field exploration program and the test pit logs are included in Appendix A.
The test pits were excavated using a backhoe to depths of 8 and 9 feet below the current ground surface.
The test pits indicate that the site area is covered by approximately one foot of topsoil. The topsoil is
underlain by a brown silty sand with some fine to coarse gravel. The material is medium dense and about 3
feet in thickness. This soil is in turn underlain by a gray silty sand with fine to coarse gravel and occasional
cobbles. The material is dense to very dense and extends to the maximum depth of excavation. Based on
our experience with this soil, we believe that it is glacially deposited and consolidated till.
No groundwater was encountered in both test pits,
to increase with depths.
However, the moisture contents of the subsoils appear
2 S&EE
528rpt
4.0 INFILTRATION
4.1 IN -SITU INFILTRATION TEST
We performed a total of three infiltration tests on July 22, 2004. The tests were performed per EPA falling
head percolation test procedures (EPA 1980). The test locations are shown on Figure 2 which is included at
the end of this report.
The test results are shown below.
Location
Depth
Soil
Measured Infiltration Rate
feet
inch/minute
IN-1
3
Brown silty sand with gravel
0.08
IN-2
3
Brown silty sand with gravel
0.125
IN-3
3
Brown silty sand with gravel
0.166
4.2 INFILTRATION RATE PER KING COUNTY SURFACE WATER MANUAL
Based on the King County Surface Water Manual, the following factors shall be applied to the in -situ test
values:
Ftesting = 0.3
Fgeomet,y = 0.5
Fplugging = 0.7
That is,
Design Infiltration Rate = Infiltration Rate* Ft.
Seng * Fgeometry * Fpiugg;ng
= 0.0087 inch/minute
Please note this recommended value is derived from the lowest and not averaged values from the in -situ
infiltration tests. The conservatism is necessary due to the presence of a relatively impermeable layer,
(glacial till) at the shallow depth (4 feet).
528rpt
3
S&EE
5.0 CONCLUSIONS
The test pit findings indicate that the site is underlain by dense to very dense glacial till (hardpan) at a
shallow (4 feet) depth. The material is relatively impermeable. It is common in the Puget Sound area that
perched groundwater develops over hardpan during wet seasons. The test pit results also reveal that the
infiltration stratum - the brown silty sand located between the topsoil and the hardpan - is only three feet in
thickness and has a relatively low infiltration rate.
Based on the test pit findings and the infiltration test results, we are of the opinion that the site is not
feasible for infiltration. We believe that a perched groundwater table may develop in the wet seasons.
This water table would reduce the infiltration potential or make the system non-functional. Furthermore,
due to the following reasons we believe that an infiltration system may result in seepage or surface water at
the west -neighboring house: 1) the west -neighboring house is relatively close to the property line (about 10
feet); 2) the ground surface at the neighbor's house is about one to two feet lower than the site surface; and
3) the infiltration stratum is thin.
528rpt 4 S&EE
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PROJECT LOCATION
UT.S.
Figure 1
-1 S&EE Site Location Map
Job no. 528 Proposed Adult Family Home, Federal Way, Washington
Ir
0 20 40
S&EE
Job no. 528
Scale in Feet
fN-1 Infiltration Pit number and location Figure 2
Site Plan
NTest pit number and location Reference: Plan provided by Mr. Ren Franco Proposed Adult Family Home
TP-1 Federal Way, Washington
APPENDIX A
FIELD EXPLORATION AND LOGS
The subsurface conditions at the project site were investigated by the excavation of 2 test pits, TP-1
and TP-2, on July 22, 2005. These pits were excavated to a depth of 8 and 9 feet using a Case 580 backhoe.
A representative of S&EE was present throughout the exploration to excavate the pits and log the
subsurface soil conditions. Test pits were backfilled with the excavated soils, which were placed in 2-foot
thick lifts and compacted with the trackhoe bucket. Test pit logs are presented in this appendix. A chart
showing the Unified Soil Classification System is included at the end of this appendix.
528rpt S&EE
w
m
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00
mm �
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TEST PIT TP-1
U
Soil Description
sM Brown and dark brown silty fine sand with roots (topsoil)
sM Brown silty fine sand with some fine to coarse gravel (dry)(medium dense)
? sM Gray silty fine to medium sand with fine to coarse gravel and occasional cobbles
III (dry to moist)(dense to very dense)(glacial till)
ll!
ill
' II1
I f
i l - very dense below 6 feet
o
` 111
� III
E
very difficult digging below 7 feet
' 111
7A 1Ii
E i 111
I I
i lI Excavation terminated at a depth of 8 feet.
i } No groundwater and no caving encountered during excavation.
10
!
, � I
= i i
Client: Mr. Amor Panlasigui
Exploration Method: Case 580 Backhoe
Exploration Date: July 22, 2005
Ground Elevation: 506 feet
SUE
Job No, 528
Figure A-1
Proposed Adult Family Home
v
m
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I
l
E f
I
TEST PIT TP-2
m
U
Soil Description
SM Brown and dark brown silty fine sand with roots (topsoil)
III
III
III
Sm Brown silty fine sand with some fine to coarse gravel (dry to moist)(medium dense)
II!
III
Ill
Ilf
III
III
III
111
Ill
III
SM Gray silty fine to medium sand with fine to coarse gravel and occasional cobbles
l I I (dry to moist)(dense to very dense)(glacial till)
III
III
111
111
, lil
_ i I11
i I1f
E Ilf
I III
' lil
i r
very dense and difficult digging below 7 feet
i
7.5:
: III
' Ill
' Ill
III
` ill
j Excavation terminated at a depth of 9 feet.
} = No groundwater and no caving encountered during excavation.
10' -
Client: Mr. Amor Panlasigui
Exploration Method: Case 580 Backhoe
Exploration Date: July 22, 2005
Ground Elevation: 506 feet
Figure A-2
SUE
Job No.528
Proposed Adult Family Home
UNIFIED SOIL CLASSIFICATION SYSTEM
DESCRIPTION
WELL -GRADED GRAVELS OR GRAVEL -SAND MIXTURES,
LITTLE OR NO FINES
POORLY -GRADED GRAVELS OR GRAVEL -SAND MIXTURES,
LITTLE OR NO FINES
SILTY GRAVELS, GRAVEL -SAND -SILT
MIXTURES
CLAYEY GRAVELS, GRAVEL -SAND -CLAY
MIXTURES
WELL -GRADED SAND OR GRAVELLY SANDS,
LITTLE OR NO FINES
POORLY -GRADED SANDS OR GRAVELLY SANDS,
LITTLE OR NO FINES
SILTY SANDS, SAND -SILT MIXTURES
CLAYEY SANDS, SAND -CLAY MIXTURES
INORGANIC SILTS, VERY FINE SANDS, ROCK FLOUR, SILTY OR
CLAYEY FINE SANDS OR CLAYEY SILTS WITH SLIGHT PLASTICITY
INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLY
CLAYS, SANDY CLAYS, SILTY CLAYS, LEAN CLAYS
ORGANIC SILTS AND ORGANIC SILT -CLAYS OF LOW
PLASTICITY
INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS FINE
SANDY OR SILTY SOILS, ELASTIC SILTS
INORGANIC CLAYS OF HIGH PLASTICITY, FAT
CLAYS I
MAJOR
DIVISIONS
CLEAN
GRAVELS
N a id m
vj
(LITTLE OR
NO FINES)
z
� 2 y
w
' ZaZsz W T U
1" w�lL yN
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w w
D: W
W
GRAVELS
WITH FINES
WZ
�c
Z
(APPRECIABLE
AMOUNT OF FINES)
t� =
v a
r r
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uo z
xz
W zif
CLEAN
SANDS
°o
ww
Fw
(LITTLE OR
NO FINES)
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if
w Lu r o
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z U�
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WITH FINES
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w�
(APPRECIABLE
2❑
O ❑ H
N w
AMOUNT OF FINES)
cc m
ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY,
ORGANIC SILTS
PEAT AND OTHER HIGHLY ORGANIC SOILS F
__
SZ DEPTH OF GROUNDWATER DURING DRILLING
—
z>
U) mN
J
I dj
SILTS & CLAYS
� JW "
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LIQUID LIMIT LESS THAN 50
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w
Z
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=Z
z
SILTS &CLAYS
W �
W w
a
LIQUID LIMIT GREATER THAN 50
LLLL 0 N
HIGHLY ORGANIC
SOILS
SOIL CLASSIFICATION CHART
AND KEY TO TEST PIT LOG
S&EE