HomeMy WebLinkAbout03360 - Technical Information Report 0 TECHNICAL INFORMATION REPORT
�9
m
�
Proposed Kolin Taylor Short P1at
902 Union Avenue N.E.
Renton, Washington
Prepared for:
Kolin Taylor
12320 N.E. 8th Street, Su ite 100
Believue, WA 98005
J u ly 5, 2006
Our Job No. 11996
� `7-S�pC� ',
���af w AC�BS II
��� ��� II
y
� �
I
��� �? 69 � � I
:.� �U
"'=:. .r
�r.::_ J.U110/
�GH A V� i
� � �'Z CNiI ENGINEERlNG, LANO PLANNING, SURVEYING, ENVIRONMENTAL SERVICES
� ;� - 18215 72No AvErvu�Souni Kerir,WA 98032 (425)25�-6222 (425)251-8782 Fnx
, °.t i BRANCH OFFICES ♦ OLYMPIA,WA ♦ TEMECULA, CA ♦ WALNUT CREEK,CA
�a �� www.barghausen.com
<r� '�4�
6
�G EN6�N
�-''�'s.=� ;�. � .
TABLE OF CONTENTS
1.0 PROJECT OVERVIEW
Figure 1 —Technical Information Report(TIlt)Worksheet
Figure 2—Vicinity Map
2.0 PRELIMINARY CONDTTIONS SUMMARY
2.1 Analysis of the First S Core Requirements
2.2 Analysis of the 12 Special Requirements
Figure 3—Drainage Basins, Subbasins,and Site Characteristics I
Figure 4—Soils Map I
3.0 OFF-SITE ANALYSIS I
4.� RETENTION/DETENTION ANALYSIS AND DESIGN
A. Existing Site Hydrology
B. Developed Site Hydrology
C. Hydrolog-ic Analysis '
D. Retention/Detention System
5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN
6.0 SPECIAL REPORTS AND STUDIES
7.0 BASIN AND COMMUNITY PLAN AREAS
8.0 OTHER PERMITS
9.0 TEMPORARY EROSION AND SEDIMENTATION CONTROL ANALYSIS AND DESIGN
10.0 BOND QUANTITIES WORKSHEET, RETENTION/DETENTION FACILITY SUMMARY
SHEET,AND DECLARATION OF COVENANT
11.0 MAINTENANCE AND OPERATIONS MANUAL
11996.009.doc[1P]/tep]
�
w
�
��/
Fil
W
�
O
E�
�
W
ti
O
�
a
0
�
1.0 PROJECT OVERVIEW
The proposed project site is approximately 0.44 acre in size and is located within the Northwest
quarter of Section 10, Township 23 North, Range 5 East, Willamette Meridian, City of Renton,
King County, Washington. More particularly the site lies on the east side of Union Avenue N.E.
across the street from Kiwanis Park. The exact site address is 902 Union Avenue N.E. The
attached vicinity map shows where the project site is located.
The proposal for this development is to subdivide the 0.44-acre lot into two separate lots creating
a short plat, with the vast majority of the site being the front lot having frontage on Union Avenue
N.E., which is where the existing on-site house and garage are located. There is an existing
gravel driveway serving the house and garage that will be mostly removed with this development
and replaced with a 20-foot-wide asphalt paved driveway to not only serve the existing house but
to provide access to proposed Lot 2 located on the far eastern side of the project site. This
driveway will be extended from the frontage of Union Avenue N.E. all the way to Lot 2 and will
be located along the northern property line of the site. This 20-foot-wide driveway will also serve
as a utility easement.
There are several trees located around the project site, most of which will remain intact with this
development, except for the trees on the proposed Lot 2 that will all be cleared with this
development. However, two of the trees will be replaced with two evergreen trees with the exact
location to be determined at the Building Pernut phase. Exclusive of the new driveway on Lot 1,
which will be the majority of the modifications to Lot 1, Lot 2 will likely be regraded and filled
somewhat to create a site pad ready for a new building. In addition to adding the driveway, the
driveway is proposed to be an inverted crown from which, at the far eastem end, an area drain
will be installed, or a Type 1 catch basin, to collect runoff from the driveway and the contributing
areas and route it to the existing pipe located at the southern property line of the site, south of
proposed Lot 2, which is a natural discharge point for runoff from the entire site.
11996.009.doc[lPJitep]
FIGURE 1
TECHNICAL INFORMATION ,
REPORT (TIR) WORKSHEET '
Page 1 oi 2 �
Ki�g County Buliding and Land Development Diviston
TECHNiCAL INFORMATION REPORT {TlR) WORKSHEET j
- . . � - . . . �I
- . � � • !
ProjectOwner xoiin Tavlor ProjectName Kolin Tavlor snort Piac
AddfeSs 12320 N.E. 8th Street, Suite 100 LOCaltO�
Bellevue, WA 98005 Township 23 North
P�f16
ProjeciEngineer Ali sadr, P.E. R�f1J6 i�EaSt ,
$ACliOfl
COlTl�fty Barghausen Consultina Enaineers. Inc projectSize 0.44 /�C i
Address Phone 18215 - 72nd Avenue south Upstream Drainage Basin Size AC �
Rent, WA 98032 / (425) 251-6222
� • • •
Q Subdivision � DOF/G HPA � Shoreli�e Management
[] Short Subdivision Q COE 404 � RO�efY
[� Grading � DOE Dam Safety � Structural Vaults
� Commercia{ � FEMA Floodplain � ��e�
0 Olher Short Plat � COE Wetlands 0 HPA
r � � - � : �
CO(T1fTlUtlit�/
Renton
Drainage Basin
Cedar River
, , . , . �.
� River � Floodplain
[] Stream 0 Wetlands
0 Crilical Stream Reach � Seeps/Springs
� Depressions/Swales Q High Groundwater Table
[] Lake Q Groundwater Fiecharge
0 Steep Slopes 0 Other
� lakeside/Erosion Hazazd
• I
Soii Type Slopes Erosion Potential Eros�ve Veloat�es
Alderwood
� Additiona!Sheets Adatched
11996.0 l0.pdf I�
Page 2 of 2
Ktng County Buiidireg and Land Developmeni Division
TECHNiCAL INFORMATION REPORT (T1R) WORKSHEET
. . • .
REFERENCE LIMITATIOWSITE CONSTRAII�(T I
[] Ch.4-Downstream Analysis
�
a
a
0
0
Q Additional Shsets Attatched
. , . �
MINIMUM ESC RE�UIREMEN7S MINIMUM ESC REQUfREMENTS
DURING CONSTRUCTION FOLLOWING CONS7RUCTION
� Sedimeniation Facififies � Stabilize Exposed Surface
0 Stabil'¢ed Construction Entrance 0 Remove and Restore Temporary ESC Facilities
[�] Perimeter Runoff Controi I� Clean and Remove All Si�t and Oebris
C] Clearing and Grading Restrictions � Ensure Operalion ot Permanent Facilities ,,
O Cover Practices O Flag Limits of NGPES I
(� Construction Sequence O Other �'
(� Other II
� • � �.
� Grass Lined Channel � Tank [� Infiliration Method of Malysis ,
� Pipe System 0 Vault 0 Depression sattx/Rational ',
� Open Channel � Energy Dissapator � Flow D'�spersal Co���o�t�y�U�
� Dry Pond � Wetland � Waiver oI EGminaied Site Storage '
� Wet Pond � Stream � Regional Detenfion
BriefDescxiptiono€SystemOperation Catch basin collection to pipe conveyance to off site.
Faciiity Relaied 5ite Limitations Q Additional Shests Attatched
Reterence Faaliry Limitation
�
. .
j� Drainage Easement
� Cast in Place Vault � Oiher D Access Easement
� Retaining Wall Q Native Growth Protection Easement
� Rockery>4'High [] Tract
0 Structural on Steep Slope [] Other
• - • •
1 or a civil enginee�under my supervision have visited tho site. Aaual
site conditions as observed were incorporated into this worfcsheet and the
attatchments. To the best of my knowledge the i�(ormation provided
here is accurete. s�,..do.r.
11996.O10.pdf
I/90
a
N
� �
� �
� �
w �
�
I �
� JI > v� ti o
..� 5167N�R •�r�Y TN . SE i76��� � �1lf-`��•r-�--M�y---��,f_ . -"_S __._�_ . –_y�.�I^_SE_7�i�—_..______'
-G T� �tt m ,''�jf'btxn �� Nr SE `rc^ s� �SE TN Pl Nt7dGISTLf �
�x re s� '� < se �sni vt sf�
x`�ry�+'r 4��M n �»Tx i� ,� 5F r � 3 x� 76TH��Pl \ t . 1 �� ,�. �r'�8 Pl
� € NN n st��y � me vl�y�S �,b �+qnv��ei,�. '� N1 c� �'4°J`'��Y ��t
" "5(»: �.���'�.�. si� ry'� � A�rwsRr ��� 'A. � P �O? YtM ,�1� �r
SE BOTH»TM sr ST � iR.� �^�t� �'a's � %��i `'� '�j,y M.,��r Sf :5��S�71�N G
-- ii2ao �iaoo���ta "� e�� h�, � ��s 4L N I
� A ; 3 x� n, �5,; !h� � tAKfI � �, 1397H �y`t��e" ��5. �SE 7B7HS VN�. �,unTM�le I
� 'f' WI^y�Y �p �i � ►7�1� ,;0 80RFI, - � I 8/J7hN� ��iT��� ��� h �'�-p�.il
1 ~, . v < � F
5[. � � 'n;�n � �•�4 t%i �� PARX I w �,°,p, � �op��'y J'F ' �q4 �v u��M �,ct 80�+`O
�ti�� ��ra� � � �.� � I !
' � E ' ST �'s�:e�i„J ��t�� ` �
�l.. '� �` �i; � SJ _ 5����..�.. ��_V� �+� ��,'� f�'�
�_ 3 SE ,^'. I �'. ��'' yt6g� i,.,; l � ,.
� BS7N Vl Y �i11 ,m���t, � �i_Sf d,�t S[g311p
F� �:scuTM .. �„ �c, F `,� � n �,� 5� ci i
k: �'u r �, ����V �� • ��� � f b' (�� ��7!lGAR •-
s[ecro st estH am,� � sc xf�m sr c^ s i
TM% .>on Sr •.•.i� nM �. � � a y '� `� Mtk1NTA1N��
Si N �s�h �E: 1600 � �t R�. a� �� `i'C^` ,r1' Q` sete.`w�,YR.Y �M s�y �eMs� RfGfOHAC::I
��(p�s�� �y��'S 89TH 5T fl�b�x X� .n e9rH � S� i� »�nJ€ �n u 'c een Y s[eaTM` Wl10LRi10��
s'�� � $» p� N �'` .� <� .,3�. n A�� PARK �
'"f�9 i +�' " , 90TH ST �+
�R � pR E°M�� SE 915T ST' ; �� CRf $ �5 t ^� pR
�R �I .` 9211D ST �: �Y l2?Gp I CREEK� -�F'f �S�g1�m �pp � '!
T � y�
� �� ._ Y S[ l7ST
� __ - bT
A31.SgT, ST ^a°';° � � ti.� f ---- ,.,� o�C Ng 5E �� '�^ 93
i r St ` � `�.� U $f- 57 ' S� s�
SE� 93R4 / » y�`( � $f �
�e���—`" I, - �zH _r;,z;� �N 9s�-o � Q�A�tEr Rn �
�`28TH *°� ST ,� �a r-� _SE__.�2 r�- ��SL95Twv�—- - — T-� � -- — -- ��
� � I
T7TH �r_\J SL %M'K_ :n. � �` �
�s- ��. N-�`----�--__
in '100 � ST �jE ?)Ty �—�ia �� sc sd�" 2�vi�z � �,.
-1 ` H.} . Wi ' .. L ��,r:� �'..
L;, i2 � _ -a [S.� I_ SF 99 TN �� � zF �Q f 1 E'.` :E:n�u u
�WIE � 2 w9�15n�@ �n ���i� E 100TFI S1''—-�.w,� NFc,j5Ti P� „E •L�iHtCT x `% �" ���
TM`P.IRI(!'_�{µ 1 8yi' ST � a zn�ti,�,�'. • < SE g.��" Y 1001N �� SE}IX%i it
T ;-5i'�' � --�°` � ��u �.. 100TH i $E _$1pQR{ „ i ST
�,�� M �,i rGr , � J � Tafnm.�Ap� Z �[�.s'k,T�,_. .
� �� � i02hD .ST � ,r+[ZJb rt t3ad �'`��pp .. i
i u2�<5� ! 2 ��� < i/ e���'�'�� �P �iNE 22ND ST K` s tr sT � � .����.�o�.sF�o�s;
NE >
W A � �+ ,`�°m; ��. 4y�7 � ._ y '� I <
T Sr � � �� t� 22WD 5T �d 4, ° � �x4M T1ST $j �,' '�Gf L �T2rN v� Q `� c:,s���W �cr
o�� � � Q� •=SN�T� ' i . ... ;�� � 1290Q �¢�crv�> 'a�d:;5: rts, Y ; �Gs. �..a '
,�.
N d 5T i a '"� c� � �+r I iestH.'.1 �=4r ME >` n �` ta 4,� + a' � 8' ��tit -
� uE 24�_ST ��M K'. �-� � ST'_{ � � � 20TN� 5T �i!E 29t .4 s�< q
��
� 3 4�,�kON CRfFK �,? � � °� ,�.H n ` � a � kTaiH sr
_ � 5 �r _
M f9 Sr iry w .'.°yy� I �`S( m a tigSH $f y: -� I,. '?�t9m �T� '
� O � � � �H�6Y 2 a�F'�t���� . ' f _1-..6.� j{�_ 3' ��i `�t� � Mt� ¢��i�. ,r� y ,�� L SE 1U511� GL ,
�E U�� 1 STp ,+Ill�I�AI(OS pC M NM \ Y: !'3� w C� �b I81N �r ..� .. �
`�`y c� <� n �� ��,aAroc�..,..,g 5�ST " HE '�k��j� � � r�� '3,ti.iMM ,�,ei'" r#�p�x snrn o�� < <� �1
OU.i
<. �6 2 ax F, '- P �_ �_0�h��s4�_ }�. ,Y:r'0C � .�� NE 17TN � rinlmMk qI�TNNO �� .. ��.ift� SE 107TN PL.
_�__6— CT i.�i
26�g.f :. `Z�YF -r s G 1 � •.0 tNA�— . �.
�t � 3t g y z '< � �sa Y3aoo: �� �k,..� 4 t` � yB VD � -t '-�'� i
$Nt nc tmi I �r� un�.K a»n �• `JC' �
g �� unt ��'� x 5T rK��m x�sxn �� � � �
�m x � ��g srLL xc tm�sr �rtE I�1H:,sT� `�SF 3� �
NE 13TN VL 3 r
§ i s !18� `S i ��A o ��� � C� •�� �lFy � `(���
--lZi1�_,ST a r NE - 12TN ' ST � �r TON 1`��p" i
2ioo �r a `� � v.sn � � � �Y �:3�eo lS�TM $E 112TH^�- S7 tt�u�. s,
Rv ,�j� a $� i �Vti ��:r • ,�c s� vt f i143C0
A e.��r�,�� tp �. Vp ^ 11TH � : � E x[t1iN �' ALlY M a� .�I
/� �-;. � '�i N Ci ltiw.ri S7 sc nrr R I
� O'` ' �Y�'*'��r� � �� �'�Ilix, ST!� ' 711H� . '�ae� � lY HS■ �I i�b! �titi�'
�v i t �e St �t um� i�y�r a �,1� . < r- I s, I
QM Y � S � � �ITI n � \ x I
�+. W i IO1M P.� 1Y .0 i <: > �iF(lIM 3� ���p�L�
eE 1on� � . ��„ �'i �' z 'nE��Qiy tr � �R 'K �on�i�n y a a� y, +t�
' _ -. "'
�r��- Y
NE lOTH Si ,. . . ` �a �a',''�107FI_ tN_.�— � �_� e Y. tts�. .1__. ' �K r
`�` -� ,, � � - ? Nf lOTH_ � ST yM . �s ; �.� ��:n; ��-,�
NE 8TH ` : �' �_� 9TN i @.a��'r � � Al
ME_9iH PL R �.� < � 3500 vr I cr�f 1�
�:�� " � ST �'��c� mNa " -j SE 9TH I
NE � � y�'" ° '`� �` �: � 4i KI WANlS P1 �f!-- n�, nE�9TH Si T--
� _ � , � � � � J � �. ,PARK� , S I T E x � �� .
AL Y J Q -� �. : C� ' � �..yi
N
� f i
8TM STy � � i .� � � �IIE PTH t
Nf y� Q �H1 Ds �� 'w�, 4�' NE 8TN CT s; ci � � t� � 10 I
I�0� cT vARK . � � �.i0�.= � �K 'S� TTH �E �..._ .87H ��5T���t " ��,
t�nl '- � 8M'� ,,�oo s' � �rmi r'0 1� ME 7TN p q. < �
o �' � NE 7TH 5T� ! i r--�
N[ enr> p �a Sj 33oU - �. � � ��� 8 � �a�.SE 1215T _5T �
��wp� 1 ,g Cr .'�, ��� �Pl ��7� -. t��W�� ��.�n t Si R r����y►q�_ Y �� `.,EI 122tD..,'�--—�
t�4 1�' �.= } � . .._. 6�N� 9t�_. �'. -!' �Y �F�.,km��;i,4��r r T� —iv i
_��'_'
' " -_' ' ' '_" " �ra �
�GHAVs�
m � ? Vicinit Ma
�� G�U► p,=
r� ' �
NQ QNG��t
2.0 PRELIMINARY CONDITIONS SUMMARY
,
2.0 PRELIMINARY CONDITIONS SUMMARY
2.1 Analysis of the First 5 Core Requirements
Core Requirement No. 1: Discharge at the Natural Location.
Response: This project site is proposing to discharge at the same location the site dces
under existing conditions.
Core Requirement No. 2: Off-Site Analysis.
Response: Please refer to Section 3.0 of this TIR for the off-site analysis prepared for
this project.
Core Reguirement No. 3: Runo,,(j`'Control.
Response: Runoff control is not a requirement for this project site since both exemptions
are met. There is less than 5,000 square feet of new impervious surface. Also, the peak
rate of runoff from a 100-year storm event from both existing conditions and proposed
developed conditions is less than a 0.5 cfs difference.
Core Requirement No. 4: Conveyance System.
Response: The proposed conveyance system for this project site will be analyzed based
on the 1990 King County,Washington Surface Water Design Manual (KCSWDM) such
that the Rational Method will be utilized for sizing the conveyance pipe from the
proposed driveway.
Core Requirement No. S: Temporary Erosion and Sedimentation Control.
Response: This project site will utilize temporary erosion and sedimentation control
measures as delineated in the 1990 KCSWDM to minimize the transport of sediment to
drainage facilities and water resources on adjacent properties.
2.2 Analysis of the 12 Special Requirements
Special Requirement No. 1: Critical Drainage Areas.
Response: To the best of our knowledge, the project site is not tocated within a critical
drainage area;therefore,this special requirement does not apply.
Special Requirement No. 2: Compliance With an Existing Master Drainage Plan.
Response: To the best of our knowledge, there is not an existing Master Drainage Plan
utilized for this area of the City of Renton.
Special Requirement No. 3: Conditions Requiring a Master Drainage Plan.
Response: This project site dces not meet the threshold of a site requiring a Master
Drainage Plan.
11996.009.doc[JPJ/tep]
Special Requirement No. 4: Adopted Basin or Community Plans.
Response: This project site does not lie within an Adopted Basin or Community Plan as
delineated by this requirement.
Special Requirement No. S: Special Water Quality Controls.
Response: This project site dces not meet the threshold of this requirement; therefore,
special water quality controls do not apply.
Special Requirement No. 6: Coalescing Plate Oil/Water Sepnrators.
Response: This project site dces not meet the threshold of this requirement; therefore,
this special requirement does not apply
Special Requirement No. 7: Closed Depressions.
Response: This project site does not drain to a closed depression; therefore, this special
requirement dces not apply.
Special Reguirement No. 8: Use of Lakes, Wetlands or Close�l Depressions for Runoff
Control.
Response: This project site does not propose the use of lakes, wetlands, or closed '�,
depressions for peak rate runoff control; therefore, this threshold is not met and this ',
special requirement does not apply. '
Special Ret/uirement No. 9: Delineation of the 100-Year Floodplain.
Response: There is no adjacent stream, lake, wetland, or closed depression to this
project site; therefore,the 100-year floodplain does not apply.
Special Reguirement No. 10: Flood Protection Facilities for Type 1 and Type 2 Streams.
Response: This project dces not meet the threshold of this requirement; therefore, this
special requirement dces not apply.
Special Requirement No. 11: Geotech�zical Analysis and Report.
Response: The threshold of this requirement is not met; therefore, this special
requirement dces not apply.
Special Requirement No. 12: Soids Annlysis and Report.
Response: The threshold of this requirement is not met; therefore, this special
requirement does not apply.
11996.009.doc[JPJ/tep]
FIGURE 3
DRAINAGE BASINS, SUBBASINS,
AND SITE CHARACTERISTICS
� i I f'7� 1qKp uEtCp � _ 11/C SptRH 92 FEEf OF TFNT PoRf10N OF TNE SWfli 1
� P�jHAVr �� p�R p� Y � ;��pp�pp�p(,��q�p) I SWhIWEST 1/1 OF THE NONTMVEST 1/4 Of SF.CTqN 11
I mP �Z(�� �.! Wtl19tSw(tu) ! I EAST,W.M..IN KING COUNTV,WASM;NGTON,DESCPoBEU A`
N��.��p li ��P 5ipd uWrzif(5MM) ASPwU I 9EGINNING AT TIlE.`,QUTIIWEST CORNER OF SVO SUBDM�
5 J.01 i RIN-�I1.�1 /l ��. C-�
I Q SlTICiURE IS�'}E f \.l swiwr SEwtx wr�u�e lss�al
I f
IC e'TC f.a�pg.pp � �S�R ; C_�[ONcf[tf I iMFNCf SOU7N BB'4��43'CASt AIONG TNC SOUTII I.INE
IE E'1'VC 5��07.99 ..' (\ �y'�."� �pyyE TNEHCE N(N7IN 0777'24�WCST 198.95 FEET TO lllf Sf1'
I µ— � � DO MAIGVILI£ ���L CONVEYE�10 HAY l.LURRIMAN Bv D[F�pECOF(nU IIPIf.
i � � RECOROS OF KING COUNtt;
A t�e uroawt(nq -�—w�- wArtN iM
I - SN7^4tY SEMER UIC
(,v I EN ut[R�4RR I - Srpmi pW,rur,E iqE THFNCE NOFTH 88'76'09'WEST ALONG THE SOIRH I IwF
� ) r�. $,� � __�._..._ �� fEEf TO THE NEST lME 0�SI1D$OUTH 1/2:
� i menax��warxaaro
w�
,F r i .:. .. ., . .... , ..� p[�r� � .:.-:.:._I � (f6AE OP!C) iNFHf.F SQUTH IXYPB'04"EAS!M.MJG SAIn W�':I I INf t
�'M1 I �PONER vIXF. 0 1 20 M —o�pf pp�pp�� BEGINNI4G;
I WI�FN14fqiNEH � .. .,� �''" /'-- NW�[NCC
� I 8 UNOEXCROUND �
� w OOAL�� �r =� ExCFPT THf.WES1 J(1 iEE(FOR COUNi!ROPn�
__..... .._......... . ....
I i i I I „ ��,� SITUR7E!N THE f.ltt 0�RFNTf,`.?!,COUNn'�V kIW;,'�iAt
� ' 1
�
i I P
� i I wr�ra+'s No�s
I I� , + 1.0l515 OF UE4RII:GS TH[MOM1t�IAENiED LWE BCMCI.-N 1
, I CCNTROI A10NURE�AS NUTABERED 1848 AND 159.SND
i AfTE2 lEAST SOUARES ADJUStMEM Of THE NW K Of
� � NANC!S klSl W M.
�
� A`I��r M 2 HORIZONiK DATUM IS N�1D 17&3(91).645ED ON INF(
REMON.
^, I -I'•I - I I 3.TqyN'St11PO2JNUR5ENW.M.i9ELEVATB10NCHM/RK.18f�kE(
�.__'_����� 1i I
� � a P fENCE IS 1.]'S4
� I ' .;�� Of PXOPERIY lG4C � (
Z ' p���� FENCE iS 0 f'S 4 PROPERtt�RU • 19,161 t SOUARC i'EEf 0.14 1
� + n + Or VROVERIY l�•:E
�i ' •" 5 UT�'ITtf 5 OTNFR THpN THOSE 5110WN I.UV E%IST ON R
I ' .II I- �;' --..__-�..,�_- ....__ �2�'���' : Y��•, EVDEHCE OF THEIR INSTALlATION VISIBIE A7 GROUhD'.
,' i ... __'—.' _.. .
�- �� j 1 � UNDF.RGROIIN�Ut��IiY IOfATION.fi 5110N'N ME MPR�%I
� -}�� � � _ r� � y ��y f,ONNFf.iIONi ARF SMOWN AS SiMIGHT LINES BETWF.F�
!. 'I!�- �;I ��� � MAY COMNN BF.NDS OR CURVES NOT SHOYIN. SOME
'Q��,� I � {{��------10'PU&K;Ui�uilES F1SE4EIrt - __ � � �"- NEREON IAAV HRVE BEEN TAKEN FROA1 PUBLIC RECORD'
' t i�+ �I'p REC.NOy9�80J060273Tr_-..._.____.__.______� r~ .' f 1� `���q�j ylry�- 6.ANL DSANLES dRESH�FEETOUS�'SURVEYRfEFT ACCU�
/ 5
I1 �
�'� �l_t .o � � � �'` axeem ust ( )
�q'PMNCRIY LINC
� f ORNEM�Y j l.il��1 i A f�fl D IRAVL.IiSC SU(NLY A NINON NPI 36:
��,.� I�� ,,�I I i _1�,� / � A /�r ` /l I ��-� '� NFASJRF iHF ANWUR ANO LNEAR RFlAT10N5HIP5 BE
; �; ,___�___� _`(����� I M O N U A I E`I T A T b N A i S N O W N. C L O S U R E R A T 1 0 5 O F i H F
P n.-,al' L9 I ta - d - --�- "PJ'.'_- "- p r�'�� � 1 :PF'f.I�If.D IN Y/Af,)54-1}(1-090. ALL INSTRUM[NiS/
6W l. . `.
���.41J�9 '�' � � �� ` � ' A � j4� �T���� . � � , MAINTA�NED IN AD,�U511,lENT pCCOR�ING TO IMNUFACTUF
;-' � 4 waio ,o i .r� .,.'..-'---.'• nn
i�c .�,a.i ��- � � Trtru�s �� � 'f . r i � . .
I t= -a �_� �S��L v 3 16 � � B.THIS SURVEY W/S PREPMED FOR THE E%CLUSNE USE
Wu[R u[rt�a r(+' +�f•,+l'o��'. �r.-r- 7 -�.. ��
' � j��7� � .� �. ':�"--- � ON OR USE THIS SURVEI'00 NOi E%TEND TO RY'�u`•i
�' � ��q I j � �I.'(l(f f ��/ '' �� j I f[HCE IS 0 J i[ _ � RECERTIFlC�TION 9�BnNCNAUSEN CONSULTING ENC NFCI
_ � I� /� l"� �1� � v�.p � � OF P0.0PEPtt tINF . '��� � �rcTp� fAND SURVEVOR NNOSF SEAI AP�EARS HERf.O�I
�� � W S [%61W6 �Yf '�1 * j fiUldNG
�� ° y~i)s�� I EkK71NC�� � '� 9VILORlC /� I✓ ���� �j� '4 � W.EDCF DFC✓
� � ��j�� i A^`�� occ� ��,j�:r� �'r' �� i �' � � � rc os ar nv
p����.. `" �h5 i ��, i� � vaovcan une
� �. ,� 5'SLOPES N+0 }--1.'.n6�� � r ' p
� ; I a� '� S�DEWN.K FA5C4CMf �j � �r�.^ . I� :L 6'PVC <'l�•g �
� W� �� . , c.ra.�io�i+a�eo+ t(i✓.�_�. ' � .J..i:. r � rsc - 1 �r ��'' � sw��i oe � SUNVEY REFERENCES:
, �
q'� I ' �� 1�;��'-" �_''_ �� �__J�' i . j1° � h.-"'-'--
:� I . + :)I pp�{R pa� jr'� �V 4Etflt � � i 'f ( � I NOUNDARY IWF AD.�ISiGFNT f01I f.ARI W AND CNRIS1i`!
�,�; uenx�a4� I� iwNwnw�: �+� ,� R4 �(.�C:� �j f 4 I m wRc�uuscN ca�;u�nr�c[r�iNt[r+s,ir:c..�ori wo.
., , ; _wrRwmc rarn uNore arr,oa��iuc uo �cw�oei�sa000, rn is
.� , 7, I
e`� .�i T s v
#'�. do��_. , ..p �� '% 1... tif ; _ �l� �,, w r�c[rtoc wu.t
�,_ , ,..--�. ,.� '_'�:.�- ..�:,�__'. 7�!]`I 700.tY
1 I y ,,, � . l IS 0.3'SE OFK
', SSAM�AI[f�{16.01 , pp�[p�9.'`" ` PMOPERIY IINE
- � .; f sr ruxc is r:w i ro1e ic s'wc /.f- � '�,.r '�' ��
' ��0�WC N�M791 I NE�11100 / i "f` N.EDGE DEGK
� ,I . �``- �E B'rVC w.�o766 / ...-'�� ' S o,i'*E 0�
( �[B'WC 5��0].l9 IE 0�CMV / ,•
.,.'
•
� � � ' 1 �� ;� 5E-�1100 • MOttFiY INC
� �
"c�g�"_`r ` .�, r C-: 5 eHo woao ttrx[
i t . • ; __-�—�.... �:cx�m�oro �s o�sw ov
„nry1 '� pppPFRti Ltl:E ��
� �k � �I�y• �� ORNEMAr ' . . � ' .. .� . /
i�`
' �I�II.44�.~ IIf.POWER ,
� ^ 3 :liNfS �
• �
��� °` i� `� �. ��r, e.,���o�►s = 3 ��B' � ' �•a q' •
� � � N'M��IJ.59
I � " �IE 12'CHP E.�09.i9
� � � �uo w ,��o , a �3 �� .
I � � P'f.4�`I'A..�'�.
� ,Ex. ...�.►�1 3 ���'-��: .t� o
I fi � I
�'I I ��� �S r ,� ',� �f � ��� Z �•
y � ! _
6t
wi/�con. �� �
=.,o-��_a� �'G
FOUNO MON,IN �
/ i-I/1'&GSS C':-. � !
Ai WT%.UNAN AV€.H.2
i � �- ,�:. �.,
�
°�=----v p E V ti t� P� p
, � � p �4' � $PrSll`1 �l �'Q
I I .
� i � �i
� I �
I '� � ' iNsr�u�:
. �-t2'zs �(��)
�� � ' ^ i-e•c+�re vuve(r1x�u)
�R'S � ! � I i I 14 LF 8�DI EXf�190N �
�. i � i 1-FWE H1URNIT ASST.PER ��
I,` , '� �����4 �
� ; I I IN5fALL: �
� � I � 1-8'x6'TEE � _
� IE EX.B'PVC-40E.J2 ' ^
. . i. ,,.M IE 8'PVC�408.40 � I MP�R{�I lov 5 'D�t V��1A�1� /�
° (xINfR�CTOR 70 FlFLD �
�� i
�s• von�r�izoNra x
�.__._�_ I , vEercu�ocalar+ iNsr�ut:
�j OF IX.SEWER PRIOR 72 LF 6' RiSU1L: 20'IIH�tE55.ECNESS�# MEA ORNN tL � a �[ �
� '-�- F�`�:° ' e'9 � �,lo,°` � TO CONSfHUC110N. PYC SOR-35 Sq7E SEIYER UfLIfY FASEIIEM EIM4119.5 �i�' 1-fvU� • �!1�f. .. �
r i �U �/ : i-t r-t����•�+��MISTIL.: O 1.Ox CLEAN-OUf (J.OLE 5� i � 1
'a I 3�rt�'WAIER ME1FA NID IE��09.12 rr.�� � �I--�v•/i/Y ��` a �
� Z SERVICE LINE PEN 72 LF 8• . .
' � � ���, G1Y STANUAROS PVC SUH-70 r:IJ.:h-��I , � ';C tNl. .f-�� �'�
�,,
� ;
� ' .
� .�
� ' � I I y 9 �.. MCZI',7 O 1.0X 1137 " �
i : i � i� - --� -/a .n:�._ ,�5�.. _ '�
200.b•
I ; z� ,. � ,�-_'
R '��F:sT`^^ � �u•-.... .� . I,' � �G-- �(�nq � ..r��--" � 414.0�_ �.,. � BUILDfA TO VROV�TTMfO L V��� �
� Q i u� i �,�"�. 415.0 _� �. � �IBERRE PfR IANDSCAPI 2 �
). �'' � 1,� � A
, Z �J —� / I RCAN. //+J d`
- C_ �� I �' _ &0 . _'__- �= _ . .—_..'--��/" INSTALL j , '� }7 � � r.��i, . Vl�! 1 a7� �" O
'� �p � 1.�' �'�- ,`�y � ` 51DE SENER I�.. "�.� •.
i{ � i.' .� r � l .. /'-�.-�-.~ DRIVE�MAVY�.' f i f.
I � CLfM!-OUf 1
"-'y1..�`' "` — i, w� � pA 4tS.7 � 76 LF E.� +.
f� �� i i . � � "—� _ '�. ��'T �')'7l :IE��WB.B4 � O 0.5x
:/ .i N r'r I n ;� ..i r � I y I ' `�f"""""
S.• �Fi tl . � !a r:� �-(- ,s ��:��,.. t� .�` �';,� �; . ��a�,��:�' Y� LE�T 2 ;
` I � , .� � ( , :'...,s°�? ;,r.-.:rF+� �7'`- �P.°' - - -1' � �
5214 SF
,I \ � � e ' n ' 1�(((��/�/�7 r'�? I s �
R �� I i / � ✓. .r, � �` I � ,^ F,. "t� � �
i. I 1� i ., � / /������ fF 417.0 � ,'� + >.r,N i ... .
' � �''� ��.:� /�bi �� : . .., .��° �� � ... � I�,� Eff.04E11lMViG �
I t •';
�' , �� , i � �.'rx� /� LOT 1 � � �'' �_4iia , i�;; m eE rs�uwEu . �_ � �
� : i� I� j,� s 1 �i J�/ /�'•I I�` �� j� RE � . .
��x.:i
' �r �, I �� /I ��ee.-r. �Mb�r-' 1J947SF ; �' � i� �� ,� , ..
� ' • , � y
i � .,
� ., I,
. ,
.�
�... � . �,e. � �.. r `, f; �s
_ -&� I u � ��p` l .�,. _ o . . � - �;_ __ �ab�,`;, ��� *--------
�- r,� � l[�� JY J L.�.`�'�-�• �✓ "�� � IE � ' _
;
� I � �
i � � „ ` �,,�..AY' .r..n � d. � ��. I
I •i � �"��- �a; G ,` � ��l���t' "'� '�'�� � � �
s�'u�► � � ,�% � - �' ,.
a ,w r �' �«�` t�- P ; . ' t;
. , .
_. _
.��
�� ,� � �� � i e ^ ---y -_.Kan__.-. �''_. -� -- 57 "' �
, _. �
.. ",•� - • 32A f00.� 1
.. ,� � . . - _ . . �.
.. �I � � i �ate i , _ -_—�,• � ,� ' �.
.
`. ° � ' I � St�.T.. � -N I .I. �FI) ,t y �,�
�- .___— � i.
�
/ � � � �. . I t �r � �a+ �t I INSTALL: . . , "�� S;. � .� F. r
.
`. , .
• . t..• e. �H� OPEN CRA55 IMED � \ r i�f
/ . , ., . -
� (,,r " 'c„ '*.L .�t0'/.'l V-IXfCN WRH 2:1 ��� I\ �t.
/+�° , , Ir ' � ' a• ,.0 SIDE O 4.177[- . .. . t ri -i,..
�� � / T F' ..:kl.�`L7 C,JAq / 9��P€� 1 � I A . `.�'��.+"J.' � .�
� .� m� J . ,��° �..;;; �"
r ��Ii `_T '"��^" :Y .� "� REAIOVE IXISTING
j !• ' , � ,��., 6'PVC PIPE
I " ��\
I �1 � _�_ �,�)n . \\;;�.
,7 I I:'} • tC� �.\
B \�
� h
I .\
I _. ...\\� __y
� I \ f a f N. �.��.
� �
1 , I �7. . ��..
I -_-.__—_._
I �� _____--10
I ����
1)CONSTRUC710N ACTM11E5 SW1LL BE RESTRIC7ED TO THE HOURS BEIN�EEN PPPR07(Ib
7:00 A.M.AND E:00 P.M.,MONd1Y THRWCH FRIDAY. WORK ON SANROAYS GROUND
� SFIALL BE RESTRICIED TO THE IIOURS BEIN�EEN 9:00�.M.AND E:00 P.M.
NO WORK SHN.L BE PERYIf1ED ON SUNd1Y5. _ _'
f-rr�..-T- U �.__26A
. 2) NEW RESIOENCE STREEf ADDRESS SIWI BE V OA1 A PUBLIC STREEf. � � .y�
� i�.t�-.._<rf__ __. .. . ' . .
d'
� �
I�
T�h O
� �
�1
a�� ,�,�I:. . �, � .\ ^6" " • Ago ; 34 \
.. • , , F� . ��� ��
1 Agc ���. •� `' is ��\ ;�,\� .
i�����' '� ;, ' JI �
AkF Akf �' '
AkF !�
, � ' A� EvB � 7
� BeG EvC �:
�.:' � • pgC �
'� GRAVEL � ~�.
PY v�r ' I
' AkF I �e � �.. � AgC • •
�•----- --"- � �- -- '_ �19• FvB �---- -- - -- — - � •t=-
N BM�il �
• �B M' 0� • ° x �.
n n ��p � ., qgp ♦
'' � EvC/fl � N ___ ' AgC � �
� � � � - � EM•
_.. .,� �-- a '. 'a
••.. • � . p• � n AkF ', �
i . 1� ' 0 • \� .
_ ° AmC
• • ,��' r- -- �N,--� ' • AgC , � �
� �� ' j.
� Sm•• 'in` ' M � f ' . • EvC• s
� � �
_y .,� � i I . A8�' , .► •'�
�
',`' ''� �' I � A��� • i:.
i' •:- s, •
. �• • • - . ,:� � , ' • ��Sm� . �
: U� :1 � � I ,
i �; � I AmC 'aG SITE �1•• •',
�_ �� � .��t .�: j• R rv ir. � , R [�� � •Trailer�
. • • �..
. .
.. • . . . '. .
- . � . . , ,
.
. .' • Q
; . • ' • ::,.r ��_''. • : .... . BM •: :: ' BM
,,. , . . � --•--- ---•- -•--- - -- ----- -
- - � . � � --- , :�
• M � ti•
1 / •%• l ••��..
.
• � � t• J � �C •i.
+ • .
� • . U� � 1 �� �� 1 ..
�
,��'{'1� � 'J� �� � � �' �� � � . �j __ .� � • e_" .. ..
� -
� ...t .�� •
._ . .� ��� ` ` ;i - _. �,
� • •- � . � • '_ � I��I�. • , • • agc��_
�'� 1�`• w_Y:= u��� � r � �� , �.�
�If �rti �. , ���t� AmC. �/`; • ��
� .:;E f : :i j�ig►;ta„ � y =� �i;� 1� f �
�' ~'t •4SdG� '� S`�����i^- ..-.�-� _ ° '
a`�... •t� :`�•..�� '�,��: ? •9 ' •ais• �c' . :i: . .�
6 ■ P`�,�` `+:.�~,i,,i>• �:,( � ,-, ' ,r
ti• ./ �� •
�� f
�C � �• i i' '�! : AgB
.i. 5�;' '.� 1� ; . .. • j �:__
•: .. •`;--- �.�;' � • . • � , __
i� : • � __ �.'•..� An !.• . . e • •• ' • .. a=za e-`� .
� / � � �
•t• �..r' 1 1 -� ♦1 y .
1
.,�. r `� �' ♦ � Trailgr . �yt t�EvB
3M � -- j�i ♦w� ■• � � ' ark,.': ' . u i ii' .8 '�g• �
■ r�.-----, � . . �� � .. 424 ... .
••. I � 9�.t� � � � `-----'r-' , •ii .
! � 6reenwoodCe � • _;; •••••
EvD ,+� I r �_i � . �
AkF� � � � ,
� � ��� e �� AgC •
�� � I r 't�====��,� � • . . ...... .f� .
,� I � � a ; •406
D •f'1t Oli �� EvC '' � � �� M ' .� ; .
� I, ' �m �I 1 �► jj A� a ; \ 'y • '
-_�_ yGRAVEL i,P/T a� N ti �e�c �
c ' j' BM F�,�'`o�� p ? '• . ... • ..:
• � � � a:z�a�.
1 d-�-b�� -�'� 321: °a n � n ••15'• %
� • • O �� 'P : @z Q '..•'' ...• ` � 'i
'�Rh• � �� ��� : �' � � ( ..�..''��"'��G• ••�• '
'C' 1� AkF i i�_ EvC -- ---j AkF ��I ••••"� •Pc� M•�•� � /•:
v'� � 1 , , ��a�,ccrr� �.. .��..�u
� � ..... :'��-_ '.� . .
`• Ur i ` (Ur 1 py •�, w».ti••�ti � / / ��A i•
� ' AkF •
AkF 1 � / 8M y ••c• ,
¢GHAVS �nC ------.� ',: l \ . �. . •�`'•.. M_` �.h � °� .'f:� 3Eve
m Z ,
- Soils Ma
� �
t ,
�L �'
tr,~Q[N6\M6�!
TABLE 3.--ENGINEERING
(An asterisk in the first column indicates that at least one mapping unit in this series is made up of two or
this reason it is necessary to follow carefully the instructions for referring
Suitability as source of-- Soil features adversely affecting--
Soil series
and
map symbols Topsoil Road fill Highway location Dikes and levees
� *Alderwood: AgB, AgC, Poor: gravelly------ Fair: 24 to �0 Slope range is 0 to Low compressibility;
AgD, AkF. inches deep over 70 percent; water pervious when com-
For Kitsap part consolidated till. moves on top of pacted; pipi.ng
of AkF, see substratum in hazard; consolidated
Kitsap series. winter; consoli- till at a depth oF
dated till at a 24 to 40 inches.
depth of 24 to 40
inches.
Arents, Alderwood Poor: gravelly------ Fair: 24 to 40 Slope range is O to Low compressibility;
. material: AmB, inches deep over 15 percent; water pervious when c�-
A�. consolidated till. moves on top of pacted; piping
substratum in hazard; consolidated
winter; consoli- till at a depth of
dated till at a 24 to 40 inches.
depth of 24 to 40
inches.
Arents, Everett Poor: very gravelly- Good----------------- eatures generally Low compressibility;
material: An. favorable. pervious when com-
pacted; piping
hazard.
Besusite: BeC, BeD, Poor: gravelly------ air: bedrock at a Slope range is 6 to Low compressibility;
BeF. depth of 20 to 40 75 percent; frac- pervious when com-
inches. tured sandstone pacted; piping
bedrock at 20 to 40 hazard; sandstone
inches. bedrock at a depth
of 20 to 40 inches.
Bellingham: Bh------ Fair: silty clay oor: poorly Seasonal water table oderate shrink-swell
loam at 14 inches. drained; A-6 and at or near surface; potential.
A-7. high frost-action
potential; moderate
shrink-swell
potential.
Briscot: Br--------- Good---------------- Fair: somewhat Seasonal water table Piping hazard---------
poorly drained; at a depth of 1 to
A-4. 2 feet; high frost-
action potential;
flood hazard.
Buckley: Bu-------- Fair: gravelly below Poor: poorly Seasonal water table Features generally
.a depth of 10 to 14 drained. at or near surface; favorable.
inches. high frost-action
potential.
Coastal beaches: Cb- Poor: gravel or Variable------------- (1�)----------------- Low compressibility;
sand. pervious when com-
,� , pacted; piping
hazard.
See footnote at end of table. .
44 .
INTERPRETATIQNS
more kinds of soil. The soils in such mapping units may have different properties and limitations, and for
to other series that appear in the first colwnn of this table]
Soil features adversely affecting--Continued
Farm ponds
Drainage Irrigation Grassed waterways
Reservoir areas Embankments
Slope range is 0 to Low compressibility; Very slow permeabil- Low available water 51ope range is 0 to 70
70 percent; moder- pervious when com- ity below a depth capacity; consoli- percent; low avail-
ately rapid permea- pacted; piping of 24 to 40 inches: dated till at a able water capacity;
bility to a depth hazard; consoli- slope range is 0 to depth of 24 to 40 slight to very
of 24 to 40 inches; dated till at a 70 percent; water inches; slope severe erosion
consolidated till depth of 24 to b0 moves on top of range is 0 to 70 hazard.
at a depth of 24 to inches. substratum in percent.
40 inches. winter.
Slope range is 0 to Low compressibility; Very slow permeabil- Low available water Slope range is 0 to 15
15 percent; moder- pervious when can- ity below a depth capacity; consoli- percent; low avail-
ately rapid permea- pacted; piping of 2� to 40 inches; dated till at a able water capacity;
bility to a depth hazard; consoli- water moves on top depth of 24 to 40 slight to severe
of 24 to 40 inches; dated till at a of substratum inches; slope erosion hazard.
consolidated tili depth of 24 to 40 during winter; slo range is 0 to 15
at a depth of 24 to inches. range is 0 to 15 percent.
b0 inches. percent. �
Rapid permeability--- Low compressibility; (1�)----------------- Low available water Low available water
pervious when capacity, capacity.
compacted; piping
hazaxd.
Slope range is 6 to Low compressibility; (l�)----------------- Low available water Slope range is 6 to
'S percent; moder- pervious when com- capacity; slope 75 percent; low
,ely rapid permea- pacted; piping range is 6 to 75 available water
�ility; fractured hazard; fractured percent. capacity; moderate
sandstone bedrock sandstone bedrock to very severe
at 20 to 40 inches. at a depth of 20 erosion hazard.
to 40 inches.
Seasonal high water Moderate shrink- 51ow permeability; Poorly drained------ PoorLy draine3.
table a.t or near swell potential. seasonal water
surface. table at or near
the surface.
Seasonal high water Piping hazard------ Seasonal water table Somewhat poorly Somewhat poorly
table at a depth at a depth of 1 to drained; flood drained; fl�od
of 1 to 2 feet. 2 feet; unstable hazard, hazard. ,
ditch banks; flood
hazard.
Seasona2 water table Featur� generally Seasonal water table Poorly drained----- Poorly drained.
at or near surface. favorable. at or near surface;
slowly permeable;
outlet problem in
some areas.
(i/)---------------- (1/)--------------- (1;)---------------- (�)--------------- (�).
45
�
I�
�
�
�
�
�
�
w
�
�
�
�
�
�I
�
0
.
M
LEVEL 'I DOWNSTREAM DRAINAGE ANALYSIS
Kolin Taylor Short Plat
902 Union Avenue N.E.
Renton, Washington
I
Prepared for:
Kolin Taylor
12320 N.E. 8th Street, Suite 100
Bellevue, WA 98005 ,
June 30, 2006
Our Job No. 11996
r� ��
��RY JACDe
� a�w,�s,�s
�� ��
y� . ~ �Z
�
r
Ar. �6 �-�
�y. .�, 1
�� �"^•�,�jL�yu
:�, . J
Er.Pi:; 1.O/lU/�
¢GH A V
� � s� CML ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES
m Z 18215 72N�AvENUE SouTM Ke►�rr,WA 98032 (425)251-6222 (425)251-8782 F�Uc
= i BRANCH OFFICES ♦ OLYMPIA,WA ♦ TEMECULA, CA ♦ WALNUT CREEK, CA
'`< <°' www.barghausen.com
r�~a cNa�N4i
TABLE OF CONTENTS
1.0 PROJECT OVERVIEW ,
2.0 DOWNSTREAM PROBLEMS REQUIRING SPECIAL ATTENTION ,
2.1 Conveyance System Nuisance Problems (Type 1)
2.2 Severe Erosion Problems (Type 2)
2.3 Severe Flooding Problems (Type 3)
3.0 UPSTREAM DRAINAGE ANALYSIS
4.0 DOWNSTREAM DRAINAGE ANALYSIS AND PROBLEM SCREElVING
5.0 RESOURCE REVIEW
5.1 Basin Reconnaissance Summary Report
5.1 Critical Drainage Area Map
51 Floodplain and Floodway FEMA Maps
5.1 Other Off-Site Analysis Reports
6.0 SENSITIVE AREAS FOLIOS
7.0 SWM DIVISION DRAINAGE INVESTIGATION SECTION PROBLEM MAPS
8.0 WETLAND INVENTORY MAPS
9.0 CONCLUSION
EXHIBITS
EXHIBIT A Vicinity Map
EXHIBIT B Upstream Basin Map
EXHIBTT C Off-Site Analysis Drainage System Table
EXHIBIT D Downstream Drainage Basin Map
EXHIBIT E Basin Reconnaissance Summary Report
EXHIBIT F Assessor's Map
EXHIBIT G FEMA Map
EXHIBIT H USDA Soils Map
EXHIBIT I Sensitive Areas Folios
EXHIBIT J Drainage Complaints
ll996.012.doc[WJW/tep]
1.0 PROJECT OVERVIEW
The proposed shoR plat for the Kolin Taylor property is 0.46 acre located within a portion of the
Northwest quarter of Section 10,Township 23 North,Range 5 East,Willamette Meridian,City of
Renton, King County, Washington. More particularly described as 902 Union Avenue N.E. in
Renton,Washington. The enclosed Vicinity Map(Exhibit A)depicts the approximate location of
the proposed site. The existing topography of the site is fairly flat, with the site having a gentle
slope of approximately 0.2 percent from west to southeast, currently dischazging runoff by
sheetflow into a small depression located in the southeast comer of the lot,which is conveyed by
a 6-inch pipe off-site.
The existing vegetation on the site consists of grass and could be considered a lawn condition.
There is a single-family house with a detached garage. A 22-foot-wide grass strip borders the site
on the south, on the east by the Honey Crest subdivision, on the north by two single-family
residences,and on the west by the Union Avenue N.E.right-of-way.
The SCS Soils Survey for King County indicates soils underlying the site to be Alderwood(AgC)
gravelly sandy loam,Hydrologic Soils Group C(see Exhibit I�.
11996.012.doc[WJW/tep]
2.0 DOWNSTREAM PROBLEMS REQUIRING SPECIAL ATTENTION
2.1 Conveyance System Nuisance Problems(Type 1)
Since this site is located within the City of Renton, King County dces not have drainage
complaints problem maps on file for this area. However, the City of Renton has
indicated that there are no complaints in the vicinity of the property.
2.2 Severe Erosion Problems(Type 2)
Severe erosion problems are defined as downstream channels, ravines, or slopes with
evidence of a potential for erosion/incision sufficient to pose a sedimentation hazard to
downstream conveyance systems or pose a landslide hazard by undercutting adjacent
slopes. This Severe Erosion Problem (Type 2) is not considered to be occurring
downstream. Therefore, we do not need to provide any increased flow control for this
site.
2.3 Severe Flooding Problems (Type 3)
Severe flooding problems can be caused by conveyance system overflows or the elevated
water surfaces of ponds, lakes, wetlands, or closed depressions. The downstream
drainage cowse dces not have any problems associated with severe flooding; therefore,
this is not a factor in detemuning the type of flow control required for the project.
1]996.012.doc[W1W/tepl
3.0 UPSTREAM DRAINAGE ANALYSIS
Based �n a topographic map prepared by Barghausen Consulting Engineers, Inc., of Kent,
Washington, and the site visit, it appears that there is no runoff contributing from off-site
properties onto the site. There is a rockery between the Honey Crest subdivision and the east side
of this site, and the adjacent properties on the north and south sheetflow in the same direction as
the site, which is in an easterly direction. Union Avenue N.E. is fully improved with curb, gutter,
and storm drainage. See Exhibit B —Upstream Basin Map, which indicates there is no upstream
basin contributing to the site.
11996.012.doc[W1Wltep]
4.0 DOWNSTREAM DRAINAGE ANALYSIS AND PROBLEM SCREEIVING
The Off-Site Analysis Drainage System Table listed downstream conveyance off site(see Exhibit �
C). The Off-Site Analysis Drainage System Table refers to Exhibit D — Downstream Drainage '
Basin Map. Stormwater runoff from the site sheetflows to the southeast corner of the site to a
small depression. The stormwater is then conveyed by a pipe southwest off site to another
depression in the grass strip where it is conveyed by pipe southeast to a catch basin in the Church
of the Nazarene driveway, then due east by pipe through the Church of the Nazarene property to
an existing detention pond. See Exhibit C — Off-Site Analysis Drainage System Table far pipe
lengths, slopes, diameters, and locations of this conveyance system. At this point, we concluded
our downstream drainage analysis. There was no evidence of erosion or sedimentation anywhere
along the downstream drainage course.
11996.Oi2.dce[WJW/tep] '
5.0 RESOURCE REVIEW
•The following is a description of each resource reviewed in the preparation of this I.evel 1
Drainage Analysis:
5.1 Basin Reconnaissance Summary Report
Not available.
5.2 Critical Drainage Area Map
The site is not tocated within a critical drainage area.
5.3 Floodplain and Floodway FEMA Maps
This site is not located in a potential flood zone,floodplain,or floodway.
5.4 Other Off-Site Analysis Reports
The United States Department of Agriculture Soils Conservation Service Soils Map is
provided(see Exhibit H).
11996.012_doc[W]W/tep]
6.0 SENSITIVE AREAS FOLIOS
Based on review of the King County Sensitive Areas Folios, it is found that the subject site dces
not lie within any sensitive areas (see Exhibit I).
11996.012.doc[WJW/tepJ
7.0 SWM DIVISION DRAINAGE INVESTIGATION SECTION PROBLEM MAPS
Since this project is located within the City of Renton, there are no King County Drainage
Investigation Section Problem Maps available to include within this report.
11996Al2.doc[WJW/tep]
S.0 WETLAND INVENTORY MAPS
There are no on-site wetlands.
11996.012.doc[WJW/tep]
9.0 CONCLUSION
The area downstream from the project site dces not appear to have major drainage-related
problems. Therefore, controlled release rates from the project site will be designed to meet the
requirements of the 1990 King County, Washington Surface Water Design Manual.
11996.012.doc(WJW/tep]
EXHIBIT A
Vicinity Map
"' , JI . a ��� �y 'o � •
--SE� ,�„' TN '. Sf�76 "`;�' �^' ��A 7iTN`'�'—ai; -" ':.. 'H cc
��^ 76TNPL ❑� "2 i . __.'______._ ' '. .
� -�t ,�G � ��76TM�'� �SE S7H Pt SE `�F �,rE�SE�,$E 7�h1 Pf HFiffASTtF
?[�-?�nr �4-�x a �nx.'v� �" SE r �� �F )6TH-PL � (/� Sf `T -7BT Gi
��� � 1�. � a Sf� 777N PL.�S �iG �y�p�B � � ���',� '�� � '�
�, .� BJfi :� *i r� ( �N \B �r' . ti P�S�1 �� .
" SE� �.�.fl.�^C �'i;o N'dp � �Musnc. � A � Ig? iti'M �,�fi � . ��.
SEy BOTH�erx sT ST ����.i .,.' 8.� �$a:; ten \ �� S� • �.�iqJy Av SW SF. .si�. �I�TH p
--I iiioo ii5ao,����� g,� °Is7 �5`� - ,� < ,�8s et � 'F
C� p� n' etst�� a'Y � IAK � 4� 339TM /{y`'�, � � SE TBTy�Vt'� hy,SE797FFVt
� S � ,�c .� � vi '� � � �� � e�siv�a 79ZH 3� DR stN c'
i �p w�.-. '� I y �kF :� J ( ,w S� ��44}�S�^ � BO ��
I � � �•� > � �a, ' PARA� y��.",�,� ��ry . i,, �qQr�v Sc�ah '�,c' eo�' .5
r' :: �R ` ^� s�g e �� h
,�, �ST . sc;e�r �, �.tx. ���
OTH� � �` � STH c,t G �'^^•^�_- S7 W y� -}y
��F � � � gS7H����. �� v.; .�ti yE.� .iy"' U �f ��_
� � esnir� „��'�: � G s{,� �.t+��1 sca3ao
< a:s��ty � �l PL� � �� �F� � &'^. �� 5� Pl �_
� lN �� �
�':Sc ebix sc e6Tx ',..n,�nrx S� �� �s�� u�•esrx n� `ri^ .• �y p���s��r,,,R '
� ., v� 57 �.sT nTM `� fi ' � MBJNTH�N:
_Si �SE SE TH �,„cr ST � �'� ���-�'�l� � L.� � �� �.� as! i Sc S� �I
� 5`r� . 16UU � =� .sF '� � :rBo� sy Q` ��:w�r�sc s, >>h = ei�N R�GItNtA1��
� N�'� tr'y���5 89TH 'ST F I�'�po�n��� � �u� � � � e�� �m,n 5c B8 o u een+� HltDlauD'�
c �p''ts'°� - �: <i„ I .c� S�. . N �,�,� n� R D.. `�s ` PAR,Y �
PL 7m
"'�2 ���d+P' �' � 90TH ST � � t � &i '�ev
c., � Kkf $ `�� �� N• q �r
�� R °a E��' SE __9157 .ST CFE- ., °p*�'` � "'�
3'��' I 92N0 ST . ��. ,€��7226D CkE(X�--�� �. r..SE °151,'�'.� �p " �9�
:i � S`c .y^, ^,y' i[ R, S7 'n
� � E C�L SE 915T
I �y y��'�y� '-- J7 �
3]$T � e'"`� �a % f �.s wg s'_ t` E y c.+
S7 '"4 °` � / c[ N S. O SE 93+p0
; sc s 93Ro SS � � b � " Sf sT Sr
� � � �E . � � A
' ��`r--^'" .\ i" 95�-s 7Go c w 9``-�c a't 41Y LCfY
J �� -=��sn�v�_ �n Sjj o a _� RD
"`2BTH�,� 5T `' w�Y / _�- � n - a- - - — - — - _
_ r,� �> —� -M
--s?-r-''�_ , �^y � e� x ` __- -
27� SE %iN� � .g q� S� ,,,
;�� 2�00 � ST };F Ii7,�' �--- ,�� Sf g0�`` r _ 'c)trr�� � �z
f
i W@ o ro rtn i�`I 'SF 99TH � �z �a Lk' ���F ' ry`
k�E'aNYlNLE � 2��a „i .. � 3 B � - S7 .� � if a. j�7,%� p� Y�TM ' €? ��...
' :laYc y � ni� _ �E� 100TH1 , . —-�:—� c _..�.�' v� K<t � �
� P.1FX y 67 � ..� M HF15TH� .afM1A[i t4� r1 ' c i .- �l' �� �:
—=�tM" _ 5t N� �� b SE ��C�.� r argry SE 3$�`'. � ""MLRM �F
'j-_�'�` 5T
i- <� �r+tktr0;u ��aru:•�act ' '
7����k' 1 �� � c�' a� .r � •�� Si �_I42@[1 � yx ��c.ti� � -�4� z �<'s� c �
uE'�<� 2�p 51 s� r 1 I �a. T.� 3 A� ��� ,�P.s£;OZfAI si
r 2sRD < � n� ,� �Af . 72ND 5T _a', � d t�s t .
� � I
" 57 g '' w ��. hs�Iw`. �.fyt+rp s� �¢ ' � •,�#�n'� cf
r 5s W� � � z2Hp 57 '�` � 4 �_ � a.,a ?15t_ � ' � ,� a .y' ^�-
�
$�� �� q Q � rr �. -3 r,-. , � �1290U Y',� . 'a`E ,!^.�. .,1 �.,r. ti�'•" ,hi ��
� a 3 �i:s••r� � . � v� z�{"� ' ht a�$ �%13{ e�
��57< an � �' :t losTn > `�` �-
y ,R ��° � -.�-E < �F; I+E �'L6iK 57 ��tF S y' �'�<�C['M_�Y�, -'`C� -
� aE 70 57 e+r a�- �•`" f�H C.4FfR� ST - � ry a. �TH 5'���e $ �r --SFTb1 ~
� � r� l9�x 5T �`�' 'q ,,, J�RD�� �r t I � �`` � tiyl+! CT �`, � -)� ���r � � m n
H o xE 1� �. !q�QiH ��s Y;` __ . �
s HE � � �,$a � +� ``,r, J .
i L te5d .IBDr STF� .HJGNUIf Nc '`re l�. � ��� j�i �,��- �h"'C . �5, 7A L__ . ._ .. ._
Q �' � se �osni P�
�4t "�-' �s
s' �,vti�x -"'S� i�H�,z `�he�� r, . � x, s,�`.-� � -�� �
„e .
„tn ; N „ui � xx�, , . r� , .� +�. cy �,�� . ��, <�< c �.
��� ��� � a '` �TK �. n, i� \ � �i _- -- r �'�� - � �`'z
xra .�f, � Oo x i:�,`'' '�( � hE ilSK S.� :s.`t+�h, �Itrp v��, �: x rE 107TH_PL
�2400g Y �� -- �'� �Y a� �' irt ..
�t s i t�� � a � rc TM I `38QO L a.�� � �i � �, vo .�� � "� '-—---�
i.ni�.lt. `. �i' � t
m �� �si U �' �''`�� ''c s� �t¢inw,°r�� N' xi��n. �� � , ,� I� .
i!E 13iH PL t� � N.S��i,�-'.7TN`-i .� ' ; � �' F �� �'� (
o �.��i� ���`�i18�! FS� �4 0� n7u �. � r-+! CRE/( '�� 'PF < � �F�
-;12TM__ST a.r__ NE '
... .S7 r ; �. � 'S1 1G��! aA�. s'i' ,� � z, �` f,tj�` '�'
2ioo �r a o w�rn "� n. '3a � �;3�00 ; "� :��� SF_ 1�2_�N�' ST �N ��«�n
, _�
� �
� a g� i.v�. �:4 a VO` `�� � [LTM �'� a t�r. 1kT N _•`1d30�-
RK ��i�qO,S -� S�.F 1,�� �( � � �� lii7+ .f1E 1)ti. )11EN i�A �' 1 � se�imr n ��
�` y� � I � tlT� .37 - . . a i��t 't`i�m�
�� . �� ,* ' ��0� f`' �n*,.AE U�� � ,�4 ��G y. s� E: i a`�F7tme+� ��15�_f„Si
kE,lOTH ( ; _./. � !�! <: �, ��.�(G�,�� �y �.� 'K b?U� "� 't' 4 �; �Lrt tllk,��' �g 11rtTMii-
� �
� � � �
x� ion� ss -'' - ' f� ' < iurn t�.. � ��± - - �s,
�_..._
_._.
,"E�Jl� .e� � �. �- -- a_ +IE .,lorH�, �`---- s� °� �- , �-,aae sc usni s
NE 9TH PL_���v'1l. r.IC: < ; 3506 32M � p� � �i'�; J
<I .t.� i � i __„vy 9TN ST •16� !�q. 'j SF �,'pl
NE � g s'`� r�t ' �i a ft'. KJHAI/IS ci U/ 5t�;_11�;9TM57 r--
�$p�� _ � � ����� ��9�o � ��� � ��.s o�axo S I TE x �f �� ,� ,
. HF�3�Q �:HlrttGc DS �..�'i=4-n.� 'aS�.n,/ ;m.. ;� . , �7: '��:hF1FH = � � � 10 . /.
IfiO ." tT �"� F�Rk c�S � . x {p0.- _ai r Nf BTFI `SI a��, ?TN nE ���---�� -�����SC 1 ��K �
p�TH �* , .� NE � .-'i�On MF 7TN� ' ST �7TFi o� o� ��If OE 7'iH p S' � r-�
�E .61H y}'Pt : ,S.,jy ce�y �.� , I� .. �-z����' �jTIf1�5T $ �d'��1g �� � ..�;l SE�j2TST :�ST �
tre�. '��eZ -� --� PL. �� 9!F a�W' ��:. ME671! 1 ST c7�»i �3'� SE�l?21D �
�#p� '$ �a�'�' ,HEsiH. �,� i�._ __ 4� '25 � � a ?5 ,ws�� � ( 57...�___., '
!� _ eE' __}'�t ; � j�
� i - __._ -- _'_ _ _
� .�N_w�: 4L._., �' 3 � Y £.,![wiCt's'Earr�� --._. .
�GHAV
=:t st�
°1 - � Vicinit Ma
o , u
z ?
L�'�1 V��bp�.
�C 6Na�H
'��
�
EXHIBIT B
Upstream Basin Map
THERE IS NO UPSTREAM
CONTRIBUTING BASIN
EXHIBIT C
Off-Site Analysis Drainage System Table
OFF-SITE ANALYSIS �,. �INAGE SYSTEM TABLE
Surface Water Design Manual, Core Requirement #2
Basin: Renton Subbasin Name: Maplewood Subbasin Number:
Distance Observations of Field Inspector,
Drainage Component Drainage Component from Site Existing Potential Resource Reviewer,or
Symbol Type,Name,and Size Description Slope Discharge Problems Problems Resident
Consuictions,under capacity,pcmding,
Type: sheet flow,swale,sveam, overtopping,flooding,habitat or organism
channel,pipe,pond;siu, Drainage basin,vegetation,cover, destruction,scouring,bank sloughing, Tributary area,likelihood of problem,
See Map diameter,surface area depth,type of sensitive area,volume � Ft. sedimentation,incision,other erosion overtlow pathways,potential impacts
10 Sheetflow to depression Grass and gravel driveway 0.5 50-70 None Noted None Noted
� 8-inch pipe southwest Rock-lined depression 0.2 35 None Noted None Noted
OO 8-inch pipe southeast To catch basin T-I 1.5 90 None Noted None Noted
40 12-inch pipe east To catch basin T-I 0.2 200 None Noted None Noted
� 12-inch pipe east To catch basin T-I 0.22 90 None Noted None Noted
OO 12-inch pipe east To catch basin T-II(14, CS-8) 3.7 20 None Noted None Noted
O 12-inch pipe east To pond outfall 2.4 198
11996.012.doc[WJW/tep]
EXHIBIT D
Downstream Drainage Basin Map
_ _....._. . � . .,
/ • ; . . a I:�� � . -� �<b i
� ��� . .. ... � , . . .. . . � .. . , ` -t_. ' . �a.� � . __ \u.0 -_.-�-�---- o H f7Rf. HYDRAN! � �
: , ..__... ... ._ : .. -- � • . IT' -12'LCPE �s> �
� �
�ST� �2+50...2. e S'RT L'.`0� � - / `� . 1 hliN�,65R ,- MIM:"FC � .. ■ CATCN BASIN T1TF. I (M 1-L
I � 'F�fFF� 114.87 CB 6 TVPE 1 _ STREET SICN- � ���) �' � � a,� \
O -- t 7+DP� 413. � ML•f. r r` '1..� � . .?- 4 5.9 y u�s
� � I i„ IE+41 1.30 ¢!`�}6 j � y��. ���• C6 3 TY� 1 .� l.OT 1 7 O Cw rCH Bn5/N !WE 7-/NAM ��y�s
i G yq� I . , . e�nc`£ i �/ �y�c� -p 3 � TOP� 4�S1 iy �
�
�" �, ��.� � �!. Al FC W I 12� INLET J . ����� I �+ � �S1 B ��oa /Eq51:N0 S�N sEw[�u.N. SANITARY NANHOLE .�
� ' 379 �! ��fi .. - i12: ! CB SA E'1 � ' . �,. IE 409 (YV �u qp,fLEV N16.�B � �
. . � . � � -�-__------ i . . .- TOP�413.47" 4l � � t �.c S'd E�ST.�IO.M � �y �,
� • a
u,�4 I �4 �I 1 411.�3 / � . � , �F 40917 .(N) ' / �{
C � 9EE STD� B-20F / I '410.27 �. ��� � _ �� ` $POT EIEVAT1pN 'z V ��.
�
1 � y
--- � M/N. FC � Adlk. �fG p N I : a - �� r�io�..
. � CB 4D TYPE 1 � % a' � • M(MIUMENt A�CL ROK
TOP- 413.8D 4 i5.0 41:�5 F �2.CC� �� t �u �:. ! �� . _ �. F�+n
. � _ �` 1 • � ` �
--- . .. - IE= 410.23 � r I4'�>C�Z"LCPE � 1�f1 •.�� `? � . , ' �- }~•.`.t � __ai 9 t0 tx-:
��r_ �j � �� 1J � I � ���� S� � I � . � i /,,,•3oe�� �� au. os, . _ io-:
r! r - I t ;� -'-�-_ � BA NO(ES:
a 4 � .I� . ise A`� � �^�� . ."snHc s.s.c.o �
� .� =
.�.9 s-r.beA ' �� ��
rV' r(n� �.n� AflN.,,58 � (���6 ; � c�s� '•o.av `�� _ 1. 5£E SH[ET 5 FOR kOAOWAY CRO:
}� J _. �_ � �� .�� ��• �.cnt cor+c care \ \� SHEfT 6 FOR RWD DESICN PROF
"'E~ LOT (B ��
�j��i�F . . -ns. �:.. � �_ �j � , '� ... Y. SEE Sf+£E7 9 FOR STORMWATER r
�. �11,�LJ.!� �5� �'� � `. -� � , S/ 1REE7 gt�N r..�,. . 1 ,� MIN �(�'.._.��^AhN. F4' .e .��z_ u\ �6l
" � i� � �i�;�\ RQtDWAY PAVEMENT CROSS-SECTI
� ,; t 41K�5 I �!6:0 �6)
o�o � q -��r ��� �'� MfN. F �� � �a� `� J� �
I EMINWG SAN '�E�cn c.n.` 1't` 7 � � �"'� �I� �\ �� : � � N.E. 9th PL. }, fINISHED CRAOFS SHONT/ (NV IDl.
i 08 � , �r �� � 4t5..7 ,aT;; � 4 s ,�a. .. i�w�
;@"SbF"���.�+��� yc tt i �t � � , � ' ce ae t - k _ �--- A. 6�ROOF OHAINS WITH 2.0 FE
� i� i ��° � TOP� 3'13.34 �. �?ri ✓�, �. r f� i . I
�i TL 233 fe` � .�+7�`v.�.St,n�t '.�� TOP� 64 a �( � 4 ., .�i��'+0.!'t-' .• s� �_ •».e i�s.� �au�vsiM���MCFM.II. THE LOT.
t0.S15 , e� IE= 408.40..S � '" -' pAIN.�FG i r sr
m f� Is��o� p„ ,�`i �.' .Y � � � S ' � w � - .°1 �.r- :s��i. /' 9. 2.07G SLOFE FROM !HE CENT�
L � IEs 410.10 .(;�zr y �4� ';"�,� IE� 409.48 NW)� � ,�:? � 416.
' / BASIN (UNLESS OTIIERN7SE INOICn
� = MIN. FC; '°p 'k� � w� �� � „ £B 4n1�.'�Z-4E� /
;^ � ( a!5.3 ° ,.�,s � �` �, �-� t~ ( '� + � roP- �ia.2� ,,,,�,� P (ZF __/ C. LOT ORAlNS MATCHINC INVER7
i � I s.�Eo U 1`� i ��,� �`��� '� � .1 ; ����� ��`.� IE� �OB.74 `;W� � _ -`- �i.^ �{IISSIUN KIILS
i 'y�nc�c suw � '� "�'1 �? {
y
I_ __ . ___�__ � - \ Vt)LUME 167 FAGE J9 4 07H6R., sr+nu, rr�vr varoEn crran
.y 2- -- IE� 408.74 N / \ . CATCII BASINS t, 2. 3 3 4 SHAL
1 FORC�a�f-��-� t`�f.�' �,--.. �� �.� 7� �='��,, f�-.
X'.
� ;n;�i� ' �cw�Gra , :�-:f���.. �_.4r 96:,t1 n tCY�": �, r --- _ Ha�sc . s SEE SHEE! 6 FOR ROADWAY VER7
T17 r"' '�'- `
; .3 '����.�- � � ���---- \6' •Y • �02%
f
,-
__ _ �
�::
T-� � � L
'� ��� �� J ' �r' , -�� i " � +"� SEE � 6. ALL CA�CH BASINS SH4LL BE �1'F'
� a ��
i
j�( r '
� r1f1(`L fii� \J �1�� I V �' � ��l �1 �.. (,�,4��(.:��J �� ' �BQNE �T�E
TL 249 s �`... 410:2 �i u � " MIM.��diG � �I�J. I � .0 ry'. F'� : ( =� Ml U. FG s° 1A11J. FG � 7. CBs I AND � SFIALL HAVE SOLID,
� , � � Azl� 41f.2�`r \ d�1.Rh� al I 4.Ys.�,{ ; F�. Q „ 476.0 416.8 � SHALL F1AVE LOCKINC VANED C21
,.n ���j.� i sis�j(}�' � .:�i (f� . I % 11 .fj C ' �ldF/PE1.2-48' LOT 14 LOT l:
� it{' aso � ° � {-- 1 ��' I e. GUIiFR LINE HM.N POIN7 AT OEIT
_� BLOG i- - i,�� C � 7 �' -�Z � �.� �j �� SLOPE TO CB7= 0.8?.r.. CUTTEH SLG
� f" Sa0.57X �I l� "s° �� 415.05
� . ' � P��413.94 I � i � IER�o107.80 (S) �7
,- ^ �n�� IE ,40(19.23'� � � I � i ��-�- �=13r-LCP£-'--- as.� ., _,y,_- a ..--- _ .
"G LJfl I/ � ��� i BOaRO tCMG p.� ♦H.9 • y / � 1i�'� • �� 1 � ..�- • `A1 L _ � '+fAl'.1 -- -Q.� ' ,
:11:
IE f 8.23 i d ` ' __.�._. o • a�1. �� � _� .cs,
. FP ,� ��� - ' f • '",�so-:_� �r - ..� ��c rovu•S ewq�:a+T -Ci� � '•�``� _-+s�a_� - _ _ m� - -
i � n o � �
. - ,f` ; , " �--- -
< < � ,�_.� �, �- � -,i.r----- �,.. , _ � r �a� -��� �-,-__ ��-�� , .,
----- , ,.ce a. E�t�a" �'--� � � r roP� 412.E , �� N��„�F�� t �`.�� ,.
`•.J - •u,. •:o� t-- 51' ' 1 - ��
s ' .,.. 0 r�v£ TOP„ ta.25 �, , . , n j IE•.g�fb.79 )I T ��
51R !�N OFFSET TYPE fOP IE(/NJ l£(IXItJ D� ENGIH SlZE 51 IE� 10 .3D ; ' ` �� N � � i o� t/pq�� \
- -- - .as ; �. 4 �. � �E- 4os.4x ( . �.�02� � ��
�:- cet 9191117.39 A a�r�.eri �oz m � - - - ., ��\
�',\ �� 74 15 I.d3X ' ' -�_- � � -' -r - `�� � ��
CA9 J 157.36 R 7 415.10 IOB. Ipd.Og 7.I - .-_ � " 1 .
i
�S� b.50,i u, U's, ._- -� .� . . . ` _`- ' _ - _ . � _•
�� •, � .
lCBJ �� - ..tOB.51 ._.Icb.S� 61e..._.... .+ ... .:m� � � m:co "-._ ' ,- \\-,.
.,... ', . a . ,_._.
�\ '
\
... .... .,�y.�.:.}5 0.50,T . ��� �� iy ."__ �� � ,...,...� \ �i � . I
CB 19.J0 R 7 I/S.QD,�'72�B:�I IOB.91 B.09 � �� c r .o . M. � T-�n'1e T WA PON� i
,pU.w i06 35
87 f? 0.5/x �- ���MS'�.�. ' I � ` ,�`�ap)�616 SEE SHEE7 C-7 �� \ �
CO .66 l5.76 R I IIJ.�2 109.10 109.10 t.J2 _..- : .•rc�<t�.I_�iw°s . � Ru� � �\ �1 [
.�0 12 0.50� � - if ��0.95 POfm IL65 ROI�CL CEOIEIRY
Cfi�g ?�SJ.66 f5.16 L 1 413.77 I09.55 109.,53 �.17 i� '• �i PONO ACCESS Ap � � o
1 J3 �2 0.30.c � �', �`�. COMPACT SUR ' q �o.y�y �i� ,
cN�C �r12.1a I4.9J[ t �iJ.�l �t0.�1 �f0.�1 S33 SEE CEOMETRY jABLE RIC,FIT o �vio'x�• `ti��, �A � N , �
rs iz o.s�x i � _ __ 1 li, � 1 l �, �
COIO 0�9Q.P! 19.JZ L 1 �Id59 - SfO.T? dJl I I � �.�f - / b
` e E9't9'12'E f
� . I I I �� r
cei
I� . R .n.so � II � 1 \1
i a e r 2 o.s o s I I,` I _ ` �� n a:=a•ie• � �� I I � � , �n.wo t
CBS �f6E.3� ISJB R 1 4�J.5? �09.85 109.85 J.67 � ` , .
�i 4.19-N.P. s io•1rW) � rwscw�r
`\ so r2 o.so� I I � '•1 . e ssis•ao•e I 11 I ' i� eouva.Rr
1+81.00 Cp,y� fr6a.9� fJ.l6 L I IIJ.52 - IlO.l2 J.IO I
t ..__._.'_1,.-__.__.� �'
A �.� � ����, , '�I
�� i � _ - � �.�. , �
--�------
as r� o.seX �t x:,� � 4y� o sras•�e• � I\ �
i CB6 SfW.07 1.5.16 R f 4�].63 �10.05 <IO.tlS J.SR ._�` i � l .M.7! l I \�\� \ �/
7B /7 0.5iT � ----- � �
CA7 I4+B1.93 7.eQ R /�lJ.711 4/O.IS 110.45 .7.75 p^r'�'�� � B 72'31'7'E � �
' I30 t2 030X � .��•+z.a,..w .nn.0 . \ I T^� ..L
-x-i-w-+-.-��.�� T-,a�.-......_�.,_..__---�c'�'T�---�x�,�,..y=..__.T._..,._, ' J„-. -
� C� IJ+11.93 L66 R I 4I5.70 - IIl.ZO 4.50 `� iL Cl���g :ENc[ ' --.....�-�`. `°"�.��`-'-'-�"
--" ' � ---
x ------��7ce ___��2----._. -- - - - 1
�����,��« , ,---. -- _ -_ _�343 �
� .B�z .
�-Ce_ _ _ R- � 7
ry° __ � CURVE UATA AT FACE OF CURB
v U �� �
� � i . o_z_ Qo o ,+:._ J �'-�7'�. aa32�'_
US I¢.Q ____ 5.00� - - J0.00 ���� 25.00 �6.OQ___ �4.bU_ �___ 6,�0Q��__
NOiES: A_.�NGTN_ 1I,�.d3___ .6.OS 47.14 _ y.� 1 A� _2J..I0 ) 9743
- - --
�--� �� -�T�- L TOPOGR�PNIC WFORMATION WCLUDINf, R�NCI�MnRK nNn
EXHIBIT E
Basin Reconnaissance Summary Report
I
Lake �QshlhBtpn
r . -
�
�i . - - --
:,-:..� .'_' '. ._
�:�=Y'• :: '1::•� .;: :,:•:•: -:::;•"_�::�:::�
:}:
'F.ast.��:::: .�;:;;;'-::`
. �.La�e aahtngtoa.
. �:::.s�::�::::::::::.'�?::::::;:;::�:':;::�:�� 9 .
t2 $.
��
:��Rentvn':� ..-i..., 7
:.;�. ...�-.� �
::������:��� ��
�:.::.
;:��:: �� �r '��:��.; �
::::.-� .:. .
. 6 q
ce�s�x�er r+�d' ��t" . 5 .
�
� Z 1� Coal Creel[ - .
5
f --_., �,,�A��� May eek
3 � .
2
h
� 5
s �
� s` 14 �
� 15 13 1Ybbe�c�ee�
. ��
� .�
�
�v� ��� �
� /
��
o � ,-
� � � . . May Creek
� .
Cedar River Basin
� •c ' a4 . �} .� � -.Q
L �F,� �i• .4�� H..� , . .y .y �.r.,a�s .: .i-,�""t•�`"� _��;�-_
s * 4 , . � �� �t� _ : �j � ' t � ' � aj�t� ,r �"_��' �
ti' � • �, �` •"'i� �' 1�� � z� -,y ., � � ,:�.. i _ �,g
4 � a x.• r- • �"� � ���} ...
' ' S .�" : . 't6 �'� - �! � �. � � '` "" i
�! t2� ,y � , - �k��f - :i'?•a . - s �s�.
r� ,'+�, �¢ � � . �� ...
-4' x d k-.a . . • .,} r� ,,, .
t �r r ...:�� ._�G � � 6' �.> �x .w Y
'Y ��i i� '`r�' �41' .. T y�' > .• . .. +:�. �` . _ .�w
- +''l. �. �•�'�yyy��� .. ',��A � ��- � .p9� .�� -..t '� "�' � � e���e' .l�-�.� .C
* '- !r �6�p =.I' ; Z'�,- � .-� } .i S`3 f 4 `4 ���Y��t��� �
i �` �. �'�- e t <�: -�t= i . c .-.'G'r.r. a-�',g+�'�.`�CS'=�'� L'r�``'.. ? �K ~ -
.d• t,� Y ' t S �z"�'s-�+�-`�./Q.,{,w�'
f _� .�s� ' qf � .�� f s�"���' f . y rr►"r' .
T�16 4
..�� ' l 't' 1� � 'b' S - t . �f� ��
-:r � '��- f* ��: �, e •- . Y &- 4.Ct:. .�..R� T '� _ �� .�f .
� r'.
f ., s y � � x`+- ,. � � .t�- .t+ ' . -� ,� .
- � r< ',�,� i . S. .� .�. '�_ ��i��t,�'
_ �- �r��,•'< { . � �. � , ' _ . y� �, � � _ .
+16= �: � � ePR' -. . ...f �L S�` � + f' R�� � l .- .
� ��WF� i ��' f " t�, �_ .��` .�` .'.� . .:."3 �< .`.• i . - ._ �.� ' ��
` �, �
� �.
.:����t+ . -ti ,.` �. ��. >.�,►:a�•�:���,� ' �. �, '� :'�,> ;�r �
{-r � y 'S ,t �s4 �: F ,♦ .u� A , ��'•�A �►-'�. /�� � ' '-'T.3
a ! �, E- �' � �. � j . `�
^.%° . t 4 ��� � -���- `�- ��`�+ t. � .` • �y .r' _�
• .„i�-.- ` : .� ti� , . . g �r ,t�� -t
k4.1.�� v� _�. , - - ' i`�'�..�-y,.. �'�� : s r" � f
.�L i�� !� . e. . �vw 1' '� a'�:?- •� _ f�S 'i� 4.ih -��i�r.�_- � ��.
�:s
• r ' - i+.,,t,�ra- � J' � �.�..#ti�,� � .Bs
. �� ,s 4� - � ii�'.� ,. _ - �..," a. .. ._ � '
• / � - �i ' - + � .J � . t T"_'s=-��s
�t -• :{ ` , j_�::-�r � '��.�,: i���,�:z_
. _ - �- - ��'�� _ �''
�t �- /
�2 ..i�. ,"Jfi� ` • � S .' .. ,.=.o ./'" 4�.z
.F� K .. �F;_ ` � �! s - , ' . - ��y.'� • �� b
�. � � . ��,�y ,,�. ._�.
a ���rrr� e y , � Y,d' _d :t , - •�. � � „ .s : f.�.
` �, .. . . . . � . _ ��. .r t`j ..� ����Y -r
���"'�l_ �` . '� j 4� ti..uf"�. _ }
0. : � - s� �i�. ' � . . �.. '� y��,.- .."' _ � �r ',
_:� � .. !'��.r_ .
��i -. � �. � - � - 4 . � �,�_ r��p� �;S t- - � �.r
~� �.�'�t' � t r,� � �¢�!� �� r ��1 � ��' •. -��s `��-�� � �;, • � �,< _ �y'
r . . - r': w .. _ . w� .7
; � '4r� �V���'"a'£ � �'� . , F. . � • `Fi T=� . .�y � ♦`_ .E
:f ��� � "� � . ' .= �wt :,��o�"�"�'�� �nc�' - - � � +� . F ir: `,�.-X •
. _ . -,�.� . - '� �t 3-` -r. et n� ,+� y i� Y 4. �' .
_ a #- - � ,�, i ��•,1��=. .y ' �,Sa]! •� t. ;Y �'� • ��
���. , ` �., ..t.�� "�
�r{. i x .� +T " �� ,
�� .. . 6 ' ' - j �Q•' �t
_ . ,� ., -.-� ,l.sy-. �K,�ir,� 1.��� �p ��i � `j . .. ..
" 7i
N p�
� . . � � .. - . • - � - � .�q.q..: s -'� �'`!'�t �-_-1�`t�.' `� .
� • �. : I I
• ' ��. � !/ f
� • - -
• � � - �. -
�
• �
' � ` � � � r: � �
� - 1� - I . -
�" � ' � ! r - -
: - � � • -
'i �
. • •. � � i
- - � 1 - � s •
•
May Creek 1
OBSERVED SPECIES: {refer to list in Appendix 11 ,
�: AR�, rP
H� BS, H0, PH, PP, TL, UM, VA, VS
Shnibx SX, SD
Ssd�eslRu�ha/Gnss/Fern: � SE, CX, JX
�� PG, G8, MA, �VS, BS, AR, ST, SS, YN
Mam�n�iZ '
Fi�
OthK:
RARE/ENDA�VGERED/tHREATENED SPECtES: (rsf�to list in App�dix 2)
R�oord�d/OMerred: BF Hcinter vistor
Potenthl: .
SIGNIFICANT HABITAT FEATURES: Breeding P�ed-billed Grebes
OUTLET: . '�YP� Opea CMannel
�d�� Parti al1 y B1 ockeal
. Outflow e�t�z Stream .
POTENTiAL STORAGE: ExistinpActb�: 6I ac, ft.
Patentiel Aetivr. 61 ac, ft.
GENERAL OBSERVATIONS:
'ETLAND EVALUATION SUMMARY: �
Dats wrs collscud in tfie five cateyoria�hown.below. WHhin escA ate�ory the d�a v�s avafusbd to produa numarieal vaNies. Compo�ita -
vaiva for eaeh category were produced in orda�to compsrs�ach wetland to othsr wetland�in its wbbesin aad in Kin9 County. TAe rewit of
thst comparison was a percarrcik rank. Ths peraMila i�acpmsced on�x�ie of or»hundred and ir�dlwas 2M pe�cent oi wetlandc tfi�t aoorsd
equal to or below thet partkuiar:its. Fw exampN,a perwntiM rank of 80 urdrr xib-basin means tMt tl�wetlwM tcond equal to or btttsr
than 80 Ps►ceM o�all sitn within th�w�basin for that evaivatian c:atsgory.NOTE: Th�p�ran�iN ranb�rr valid only within the individusf
evaluation category and are i�t�nded�olely for rffenna and compari�on. .
� Rsnk
Erduation c�tegon► � W1r P�rttia)
. Sub-bnin County-wid�
Hydrology: runoff storage potentfai,vwtsr quality,potential for minim�ing demsg� I pp 99
in donmsbeam mas
BiOlOgy: 4�slity of habit�t,abundanct and divenity of plsM and�nimsl sp�cia 92 8�f
viwal: divtrsity and eontrast oi w�Uend and wrsou�+dfrtp vegetation. 78 b6
surrounding Iandforma
CuFturai: typ�s of aows�.PraocimitU Lo sehodsli�titutions,oversll I00 74
environmental quaifty
Economi�: p�esenee of agricul4rra/pqt�xuaction,anadromous or y�m�ibh. 35 25
game bfrd�or mammsls of eommsrcisi valw
WETLAND RATING:
Esc!► w�tland was auigned wro of th►ee poaibie vratland ratings. TI►e wetlsnd ntingt w�e dtts�mined by examining th�seons of teisetM
- ,erKory tasks. sp�cific dta or percentilt nnks fa individuN avaluation estegories. Tha uitt►i� us�d to assign tM wetfand r�tinpt an
��ribsd in tbe Introduction. For eseh nt&g a numb�r of speei/ic 9uidetTn�s!or new d�vNopmeM in or a�acent�vwUsnd�w�r preperM. �
��guidNines an irttended�o essia in ca►rying aut Kin9 County's Ssnsitive Arsa Ordinana and othsr wettsnd polieitt. TMy an indud�d in
■aep�ate report titl�d"Guidtlina for Kinp CauntY W�Wrds".
Wrtlar�d Rst�n9: 1 (al
a . - � - . • ,, ,
+ ��,�•.:,ti.4+- . .�e�": .,.}`c �».r t R .�.�� �-�. �.. .. : ;�ty5,,
* <. . �.-- i`; ,�s � `M�._. �s r , � '��
,�� ,J- .��. _--��;. . � ..�. a _,...��Y ✓� '� �.
a '�'� 'r_(.',.. '�' _� � ..'� 3���3.a,��,, � �{� � ? i� ��
�t' i ' +`'',s s JY ;. �,. S ���' .�
•"��iM��; �•.�.i. t' -�:'� i"�s. �� � M � ��s .�� ���r��ft aNn�` +�S . -`'���_ s. ��
'yi � jr� a �'�•-A�' e„:t.w� '�1.. $y�3'''�y,^ .�Y :{t� � y .Z ��„�' ya
}y.iy' cJ� +x�.�. .:S �,._ �$ ;..:'!{ y,s.� .► '... - +b" .
• / � �g ��-` � 1.Y/�' ,L''�'�� y 1.Y..�S �.,(ej�A.. r �
„ �`�. 'G .r�.t�`��y:.S�-�s ..C, � - � r� r s�33.',`y ;r.+►: �; . �� � � .c�
�5 -!. �"%?i'�.. ,��-y�!: ac4 y''�' �i c aat:.- r J..:r'�� r r.. e-4�:' �� _ _
' � " " . � .i''� �� � . �.i,", � � ' �e4 y�� 4 - f.Y'�
� � -� �.. - �� �����p,y �a� ,,� "r'j k • ••�, � .�''-t . . .
'.�J'.�� ..,�, .. �A. .a:�-.� '� . j � � - - - �
- .i' �'+i'��1a�� � � " :.�.�,
s ; � �.µ ..e� . --� . � .� ' ��
s 3
�� "s� `y�j'����Fy` /' S . .�� �� s k ' - ��p� �� � •..=
_��t` ��� Y�� ��� . 'y T ,f �� � Y^ �y r .�.� , - .
y �•4 ,t- � ' ._ . 6 .
,il�-" fr��.�,� �'3�� ;;# 4q'�+ `�'. ' .�, � .'r�` !. �'�._ . ��"'- .
�#�,��}L � e,s i
.?�.. � Y -:,� ��l•3 � M� ,-._ -.. �s'` _ . `�. ."�� t'��_�'t.
>r��'� � �'j,y, -Ei d'- . �„�,, �a '� - : .c ..- ~� -
F�>,�, i=,�r ��� � ' jF rr`� �t 4• r�..� t �,r, _�;;�a , ,�r -:= a��
'a1 �a ,� ,�� � rh� _ . � �.� �� � .i .r�' , ,... . . .. . - �'�i„i�tA �i
'� ��� � _ i � - _'s ``�.s-.�+ .. .�° �� -� - '.'+ti.c-`��- *•� '`' .. . � `-+��
ri
�+ x a'�f. + fi�•i�� Y� '..• t� �.q.�- — a,'.��. ��:.. # . . ` '�...r
�
- ���� - �'t`7� :'is . _�` �,� .��`. � _.� '� . . .��-i.:`_:
� .� ..' , � < ' '
' �`}�Fi}w��� �° .�.i'� � . t ...:►` � f"�-��� 'J�"f�`..`s t . �'��.
� 3 f t.�� M�f
�i, ��,�{- ._ ��`� � •_'�"} ..i: �����. � ! �.� �
. ev �,t.x.� . �?- �� �"_�'� �-�t r
F�s ... j_ :. Y "f.t I � ; ' .
:R r: � � .{r���.�T� p.�.� -�
,��
iA
' �� ..��` � e. ... - ' , �- . . 8- �� ,i � ..: �,�
:= p,�+. � y - � ' 1 : � t� + " "
/� T-.*.. � . .qX . . , - . � �i,-� . �.��•'4. �.1 „ �.:r
��� � -_., � A�!K ` + . . . .. ^�l ,� � � r. .�•�-�i
_ _ .�''. __�.. _ . . . . . _ . . ".f �� �
a
- � i� � � ' . . : _ �/.• i'a_ .
�_, :��'�-�,� - ... . . ' aTa�-� �
_`�• - ..t ' ,=
.� ' � ` «w��� ��a�` ._�L.� �. ��'3 � _ � � �
, .,��yw�� :+�i �� ,6 �� _ . Y ,
� �f � . �:`.:,a .���r; �,�� � � .. i��
_ _ +r ! �: .� ���:�
. . � . :/ � � - I!
� ' - � -
• • � - � -
�
• � �
• `ti / r � �' � �
'�' ' - 1 � - /� - -
- • r : e. � � �
- ' r ! - � • �
� - • - � •
- - � - - �
�
May Creek 2
aBSERVED SPECEES: (refer to tist in Appendix 1)
T�ees: AR, PT, P&
Hsrbs: LA, TL, VS
Shrubs: AC, RS, SX, SD
SedgeslRn�hes/Gras�JFern: � EN, RF, JE, JX, LM, PA �
Birds: &B, CG, MA, YS; BS, RB, RR, ST, SS, Y�', GF, RS
Mammdx MU
Fiah:
Othu: OF
RARE/ENDANGERED/THREATENED SPECIES: (refer to list in Appendix 2)
Ra�d/Ob»rred:
Pobaitisl:
SIGNIFICANT HABITAT FEATURES: Snags, good� variety of cover adjacent to apen �vater.
OUTLET: Type: PiAe . ,
. Condition: Open . . �,
� Outfbw anters: Stream - '
POTENTIAL STORAGE: ExistinyAeti�e: 8 ac, ft. I
Poterrtial Acthe: 8 ac. ft.
GENERAL OBSERI�ATIONS: Urban debri s and trash on perimeter. ,
_VETLAND EVALUATION SUMMARY:
DaW was edieeted in tAe five cstegoriea shown bslow.- Within eecb category ths dsts was evalus�ed to produee numerical va{ues. Composite
values for each cate�ory wase produced i�order ta compare esch wetlar�d to otl�er weUands in Its wb-0ean and in King County. TM rewlt of •
that comperison w�s a percentile rank. The percer�tils ls expressed on a scals of one hundred and indicstes the percartt of wetisnds that�nd
equd to w befow thst psrtiwlar siu. For exampM,a percantiie rank of 80 under wb�basin means tl+st ths wetland seored equal to or be�tLer
than 80 percent of ai!sitea within th�wfi-bmin fa ttiat evsluation cstepory.NOTE: Ths perantils ranks are vaFid aaly whhin the individual
evaluation category and are inten�d solely for nference snd compsriaon.
Rank
�raluation Categcry (bY PerceM�e)
�b-basin County-wide
Hydrology: runoff storage potential,wam quaEity,potential for minimizin9 dart►age yj 8S
in downmeam areas
BiolOgy: quality of habitat,abundence and divarsity of plant snd animal specisa 64 78 '
Visuel: diversity and eontrast of wetland and wnoundirtgvegsotion, 92 7b
surround'ing lanciforms
Ct�lturel: type�of axess,proocimity to scboolsfinstitution�,oversq 14 �i2
environrn�ntal quality
Economic: prasence of s�icultureJp�t exuactian,anadromou�or game fi�, 35 SI
grme birds or mammals of commercial value
WETLAND RATING: -
Earh wetland was assigned one of th►es possible vratlsnd retings. TM wetland ratin�wero de�ermined by examining d�e scores of sebctad
"wentory taaks, speeiFc dste or�psrcentile rank� for individusl evalustion categories. The crita�is used to asdgn tha wetland ratings are i
fe�ribed in the Introduction, For each rating a rwmber of specitic guidelines f�new davebpment in or adjaoent to wetiands vwre prepsred.
�M puidetirus an inunded to assist fn earrying wt King Caunty's Sensitive Areaa Ordiaana and other wetlend policies. They sn includsd in
a mparate report titled"Guideiines for King Courrty Wsttat�ds".
Wettand Rating: j (b, c) •
'� , � �, �
.164-.. - .. :�Ave�. SE�. - ' - . 1 -
l'+��_ � - -.� .,-e_. �.;$� r,.'" 1
d .
: �
r
r� ���- �
'y _T�.. �..-�i+
N
�M.
�
t
i '
l =
�
N
'�
R.
W
H
�-
. :.n+�.-�-s
� _ !
.- .�.-.'�.
�� ��;
Phota Dats: 5-SO North < Approx.Scale: 1"= SQO'
WETLAND: May Creek 3 COMMUNtTY Newcastle
" �PLAN AREA:
BASIN OR
LOCATION:. SE Sf 11-23-5 DRAINAGE: Cedar Ri ver
INVENTORY DATE: 7-20-81
ACREAGE: 8.2
CLASSIFICATION: Fish anci Wild[ife Service Common Nartee
PSSI Palustrine, Scrub-Shrub, Broad- Scrvb-Shrub
leaved Deciduous (Nardhack)
PfOI Palustrine., Forested, Broad- Forested 7Yetland
. Ieaved Decidvous (Red Alder)
NOTE: TM w�tland Wg� shown apow Is apyroxlmsta In msrsh�s, Dw�ds or bk�th�transitlon trom stsndinp watK to uplands Is
usually cIN►. Howev�r,th��dy�s of forKtW O►sCNp/shfltb lwtlinds�I�Nsi dlftlnt� Th�s�,th�ehangs from w�tlsnd to upland
oR�n xwn owr s Drwd xs�callsd t�s �Knnsitlon son�".For s dllwsslon�sw WNqnd Wartb M Kt�y Co��ty s�tM Po�t
May Creek 3
OBSEAVED SPEClES: (refer to list in Appendix 1)
r
Trsa: AR
HeM»: RR, TL
�N�� OH, AC, CS, RS, 5X, SD
Sedges/Rush�s/Gr�s/Fern: ,7E
8��� AR, ST
Mammab: .
Fi�h:
Otber: -
RARE/ENDANGEREDITHREATENED SPECIES: {refer to list in Appendix 2►
Record�d/Observed:
Po2errtWs .
SIGNIFICANT HABITAT FEATURES:
OUTLET: . TYw� Channel �
' Condition: Open •
. Outfiow eMs� S tream
POTEiVTtAL STORAGE: ExistiryAetir� � ac. ft.
������� 8 ac, ft.
GENERAL 08SERVAT]ONS: Receives runaff from major arterials and neighborhood shapping
cen.�er. Some Iitte�. S.trvng sulphur and diesel odor in muck.
Stream bottom a.imost sterile. �
_YETLAND EVALUATi�N SUMMARY: -��
Dsts wes cotlecced in tha five eatagwies shown below. 11YFthin esrh q�agory the data vvas avaivatsd to produa numsricd values. Composite
walues for�d►estegory were produced in arder to compara aect�wrtland to other wetlands irt its wb�asin end in K1ng Coumy. The rowlt of
that compa�ison was a percerrtile ronk. The peroentil�is expres�ad on a scsle of one hund�ed and indk�tes tM percens ot wstiands that soond •
aqual to or bNow that particular site. For exanpk,a parcantife rank of 80 under wb�esi»m�ans that tht wedand scored equal to or better
than SO per�ent of ali site:witt►ir►the wb-basin for that e+ratusdon eategory.NOTE: 7hs percer►ti!e rsnks sn valid only witbin tbs indlvidual
evaluaHon eategory and are intendcd solely for refarance and eompsriso�.
Rar�c
Ersluation Category - IbY percentile)
Sub-basin County-wida
Hydrology: runoff storaga potantiat,water quatity,potential for minimizing damags Sa 79
' in downstream araet �
S�ology: quality of habitst,abundanoe and div.enity of plant ared animst spe�cies 35 36
V3sud: divenity and contrast of weUand�d surramdingvegststiort, 2j 2(
wrrou�di�landforms .
Cultu►al: types of access,proximity to schools/institutions.oversl! j� �
e»viroronsntal quslity
EooD011li� prasence of agrieul�relpeat axtraction,anadromous or game fis?y J !�!j
game birds or mammals of commerctial vatue
WETtAND RATING:
Esch wetland was assigned one af three possible wetland rocings. TF►s wetland ratings wen deum�ined by examinir+g tha soores ot salect*d
�varrtory tacks, speclfFc dsts or percentfla ranks for individual evalustion categaies. Ths uiterla used to assf� the wetland ratings ere
escribed in the Invoductfon. For eech reting a nurr�r of specific guidelines for new develop�meM in w a�aunt to wstlsnds wsre prepared.
Cha guidelines a�e intended to assist in carrying aut King Cour►ly's Stnsitive Ares�Ordtnann and otha w�tFsnd polieiet. Thsyr ars induded in
a seperate report titled"Gaidelines for King County Wattanda".
weciena Ran�y: 2
_ ',� �4� _� },��}' ;� _ �`
%�' "� r
' - ;�. .;,�'.�, r�"` 5� - ���s} ,�
_ �;w; s �, rt.
. ;a. - ...�•
" .f: ��a
�
':�� .a _ ' �'.S�_
� - - �
�� ,.=y� _ . _ _
�,
Access from
136 Ave SE
"'.:g.:'
PhotoDate: 5-80 North A Approx.Scale: '1"= 500, '!
WETLAND: May Creek 4 � COMMUNITY Newcastle '
PLAN AREA:
LOCATION' NE Nf 34-24-5 8��� �R Cedar Ri ver
' . DRAINAGE:
INVENTORY DATE: 7-20-8I
� ACREAGE: 13.3 �
CLASSIF{CATiON: Fish and Wi{dlife Service Common Name
PSS1 Pal�strine, Scrub-Shrub, Broad- Scrub-SJ�rub
Ieaved Decidvous• (1Yi11oW)
� PEM4 Palustrine, Emergent, floating- Deep Marsh
leaved (H'ater Parsley) �
` .
�
IYOTE: The vwtlantl edgs sl�own abov� Is aDDroxfmsb. in rtfarshes, ponds or talcss.the tnnsitbn fiom standing watsr to uplands (s
uwaUy clear. How�w►.th�sdg�s o!forostsd or saub/sNrub wsUands an isss distinct. Ther�.th�chsny�from wetland to upland
often oceun'ov�r a broa�l usa calfed tbs "traraitlor�zona".For�dlswufon,se�Wstland Plmb M K{a!Cou�riy arW tHe Puy�t
e......w r I...'��..w.�...�..��.�w.�t....s...v�....r......�.,w.�i...w.�.
May Creek 4
OBSERVED SPECIES: (refe►to list in Appendix 1) .-
Troa: AR, PT, TP
IiKbX OS, RR
S�rubs: AC, RS, SX, SD, VP
, Sady�s/Rusha/Canu/Fern: AF, LM
Btrdx BP, PW, RR, ST, SS
Ma�nn�alx�
Fisb:
Oth�r.
RARE/ENDANGERED/THREATENED SPECIES: (rsfer to list in Appendix 2)
R�pT�/Ob!l.frtf�:
POtlflt�:
SIGNIFlCAAIT HABITAT FEATURES: Many snags and perches.
OUTLET; Typ.: Channel .
Coediti�a: Upen
� � Ontflow enterx Stream �
POTEl11TIAL STORAGE: Existi�Actir� I2 ac. ft.
PotMtiai Actire: 39 ac, ft.
GENERAL 08SERVATIONS: Outlet may have b�en recently exeavated. Large waterfall
downstream several hundred feet.
_lETLAND EVALUATION SUMMARY:
Dats was.collsetad in tht f'we estegorpes shown below. Within eaeh eatepory the dats was tv�luaad m produce rwmarieal vaNies. Composite
valuet for escA catsgory were produc�d in order to compare each wettsnd to other wetlsnds in ita wb-bodn-and in King County. Tht rewlt of.
ttist tomparison w�s a pereentile rank, TM percentiM is axpresaed on a scsle of one hundred and i�iestes t!»p�rnnt of wetlends that soored
equal to or below that perticular site. For exampls,a pert:entile rank of 80 unda wb�basin meaos thot t!u wetlsnd�cored equsl co a better
than 80 percent of all sias whbin tpe w�basin fot tl�st evalustion category.NOTE: The percentlh rar►ks en valid only within the individual
evalustion catsgory and an irrtended solely tor referonce and c�nparisoa
� � Ranic
Eraluation Category {bY Percentil�l
Sub-basin Connty�ride
Hydrobg�r: runoff storsge potential,wete►quafity,potential for minim�ing darnage lOQ 94 .
in downstrearn areas -
Biology:. 4uatity ot habitat.abund�no�and eiventty of Martt and animal specte� ' 7I • 80
Viwai: divsnity and contrast of wetland and wrroundinqvegetat3on, 78 65
wrroun�ny Isndforms
Culwral: cvaes of aca�s,proximicy m oa,00Wirmin,tiaa.oversll 71 86
envi►orxnentai quslity
Eeonom� pra�entt of agriculWre/put exuaction,ansdromous or geme fqh. 7I 87
game birds or mammals of can:nereisl valus
WETLAND RATING: �
Esch wettand was assigrkd one of three possible vwtland ratin9s. Ths wetland ratirigs were d�termined by examining U�s seores of selected
�rentory tssks, specific d�ta or percerKile rartks for inc6vidual'evaluation categories. The aitefis usad to atsiyn th� weUand ratiwegs aro •
iicribed in the Introduetion. For aach nting s rwmb�r ot specifie guideiines fa new dave{opment ia or adjscent to weUsnds were preparad .
M guidelines are intended m assist in cs►ryiag aut King County's Sansltive Ase�s Ordinanee snd other vwtland policia. Th�y are indudsd in
a xparate rspoR titked"Guidelines fa King County Wetla�ds".
WrUand Ratin� 2 .
' � , . G� � �� � '�' i a,J � ' k � _,
E. t Ya�� L� t � � ���. ... � � +� .
• �f� !~ �. s } - �..*c_4.. .� i•r
�r: ��� . 'f�, } � .�„ f. !f C., ��d�� _ ` ,�.` -.
"'i '-fi'�._ 'R'��� �� ' - E� � � �' � -- �� 'o� _" .' .4. ':S f'
{ 7 �if. �. . ..Yy i/ . . f i"'w'a.` ` .M1
. ♦� . �. K� ) ' : .p ,. ' \< l 7Ta, !'
� �� • � it �a +k. -� � �" .� � �. .��,
• j, 1 � .i` i ,t . ., r . . �:t
�.I, 4 •r� •• �����,,�- > ' � t � �,' �.,,(����
s'�� . ��:. �►�,�`: � '� ,� •', `���s� i� `! .� �a�
. !1. t _ �(E-•. � y._r�. '� .T �- �.;�� � i J! F . � t'� /J�""� � 1
`tia�� . /
•�.iY. .. .�� �'L' ,.. �". '.- ':j � n _ ic. � ,: W'' /... �. ��6' -� ?.i .
O�Tti �'Z{ ; 3 ':J �� �.�y
" ..T•;�Q ,.` t �l'��' � �.• �`� {� > � _ .
_� �,�_�� � _ i _ : �� � -��
�.o ` z �. ti ,� . j
�. .. '`'�� j � �.y 't z s� ( ,�,{- � k"-� �,
:ti� : , _ :, �,. -.� � .
•Y . �. . � v'i..� ���. (�
t � ' � ':� �. .s, ���'��' r. .
r{;, r. .r.s•� "'+ -•yti . � •fT ���` - . �
��:�� �� "� .� 'A.. �, �i�` .:�
` t � �
�l }1@ �.- ` � Y T �l��*j.•i`.Y �+ drA ,.�s� v. � t �.� 1 � .. .
.., � .: ����,,c�::`R �"''` ����1" 3`= `::5�"+�I • - .
- R _ �� , � ..� - 'G L � � � • .-.T >. - !'. '7 �' ` � _ _
e q� . t.r' � �"L V 4�
:� '.!.'� �. �� �....ft:�; �,C•+-�9��FL.'�.� � {,1',�w . � .
i'j .a 1�• •sF 'u�1` r • '�iy, .�..�����•'"' '�A '
. .q�_ Y �
�.'� �s 1'v �=j ��r���,- . �2 '.. �i�i�l�_,� ''y .` ; .
Z t t� . • �'_{{-t � � '�.��.h� � r � -���..>� '� �.' � ��T~��,rT�., � � .
, �.ci - � ���:��i t �C 4'� - � 9 • -; - -
� .� .rt , .� � . �_- .«�,�� �.' ,,YK•.;4ec . i}.-�} _ �y��•
_ � Sf-�� �# � �'�:' ' - 4w'
�.�^ y ,_ .
. � � '��
� + ,�'�l �-� �`"� �� � , .`�, ;i�, . ,� `i, .{ .�i„tr�i�j�i�•�, �. :..
`,�=b:-�. 'p
`� .q,, .-� _ � " � t"� C � �� 3� ' " t�
}: +`�' � . � -�, * �; . • '•�� ��;`�a
'_ �- � ��� ' . } - .�t ; t �
=:1'.
•� .�,�' `�{ ��'• ��3. ;:� �"� ` .�- �b�.��'•. �t �V� `� ��. �� '� ,' • '�
*.: 2
� Y�R
, 4 ,y. � S �s, � �. �• y .,� :a� '�, _� . a�
�' '� t �� _ ti '
� s . -b'�. , t `• � �,.Y 4 . *�..� ; 3 � -``;'� �'F4:"`f + '`-�_�'.
� :�� . • .. 1
� - � - -
• � � •
_ ,
�
• �
`ti • • �' � • -
' - - . � . ��
- - � ' -
• � � : •. r � �
-a I � e • �
�
Ma y Creek 5 .
OBSERVED SPECIE$: (refer to Iist in Ap�ndix 1� �--
Traes: qR
�bx GM, LA; RR, TL, VS
Sbab� RS, SX, SD,
Sadg�s/Ru�/Gras�/Fern: SN, CX, EX, JE, JX
�� G8, AI�A, CQ, KD, YS, BS, R8, AR, M1Y, CO3 GF
Ma�nmalx CT
Fisb: U
OtMr
RARE/ENDANGERED/THREATENED SPECfES: (re�fer to list in Appet�dix 2�
Rseordsd/Ob�nred: .
Pot�ntisl: BE (J�intering/Transit)
SIGNIfICANT HABITAT FEATURES:
OUTLfT: � T� Channe3
Conditbn: Open .
- OutHow mt�x Stream �
POTENT[AL STORAGE: ExistinpActivx Not calcvlated - nu�erous areas of impoundments
. ����� ar.� possible. �
GENERAL OBSERVATIONS: Many areas of overgraZing - fecal contamir►ation of water. Nigh
water temperatures fran lack vf shade.
_NETLAND EVALUATiON SUMMARY: �
Dsta was collac�ed in the five catego►ies sha+rn below. Within eaoh w�egory the dsb v�evduaced to produee numeriesl values. Composite .
valuK for ssch ate9ay wero produced in order to canpsn esch vwtland to other wstlands in ip wb�basin and k�King County. Th�rewlt of
th�compariaon was a peroentfle rank. TM pero�rrcil�is axprKsed on a seal�ot oris hund�ed wsd indicata th�percent of wetlands thst scored
equsl to or bslow tMt partla►iar sita. For exsnple,a p�r�tile rank of 80 ur�der�in msaru thet th�wsdand scond equN to or bett�r
than 80 perant of atl dtes wiMin the wb-bastn tor that evalwtion eategory.NOTE: Th�percentik ranks an valid o�ly within the tn�vidual
evaluation category and aro irnended ao1Ny for reference and eompstbon.
Renk .
Ersiusdon CategorY �Y Percentile}
. �b-bs�in County-wWe
. HydfObg�/: ru�oif stnrage poterrtial,w�ter quality,potential for minimiziny dam�ge ?j S8
in downsVeam a►ea .
BbiOgy: QoAiity of hebitat,abundance and diversity ot ptaK snd aninsl sP�� j 00 85
Visud: diversity and oontrast of wetland and surrouodingveyetation, 57 S8
surtoun�ng iandtorms
Cultlital: types of access.P�rocimity to sMooWir�stie�tiont,av�rsll SO 70
tnvironmerttal qudity
EopnqlliC: prsaence of agriwituro/psat extractian,anadromous or geme fhh, 42 87
geme birds or mammds at cammercisi value
WETLAND RATING:
Each wstlsnd vras assigned one of throe posiibk wetland r�ings. Th�wettand ntings were determined by examininp th�seorcs of t�Mttsd
'ivernory task�, sp�cific data or pereentile renks fa individud �veluation csteporla. The critsris used to assign the wettand ratings are !
xacribed in the Mua�uction. Fo�eaeh rating s rwmber oE specific guidelines for new dewlopment in or ad�aeent m vrotlands wero pnpared.
Th�guidelines sre intended to assist in carrying aut Ktng County's Sensitive Aress Ordinance and other wedand polkies. Thr�►sn induded in
a eepsrat�roport titled"Guidelines for Ki�g County Wetlands".
w�and Rstir� I (a1
`� � � ?
� I
1
� �
. Y;.
_ " �_ Hl,�.y I
h
'S,'� �: -�1s�Q�a
3:i�k'�: . :.
,r• �f'�s Fte�t�• ,
� �
. " +E���
.,,,�. � �
�
: � r
9��': x--� -."-
;�`�.�,w:.1,A,�t.'
�.7�,�'
� �((� ��'`���� �
II.N��S:f i � _ J
� .r.
. . I'� 9 �y�tT
S: ' .C�•. . > �.f
*�, !�,-''� ..
• ��'S:l Q
• }�+?y. :.} �'<f3
,1
?a. • . �
�� o
� �
K.-', i:
R�"
- � ��� j
_ "`- .�$',�' ,��� _
-;� '' � -
� - .K:¢ �•� �
:�"�:
f <}
�.
Phota Date: 5-80 North A Approx.Scale: 1"= 500'
WETLAND: Nay Creek 6 � CUIIAMUNITY New�astle
PLAN AREA:
LOCATfON: SW SE 3-23-5 BASIN OR Cedar Ri ver
DRAINAGE:
iNVENTORY DATE: 7-20-81
ACREAGE: 3-$
CLASSIFICATION: Fish and Wildlife Servica Common Name
PSS1 Palust,rine, Scrub-Shrub, Broad- Scrub-Shrub
1 eaved Deci duous (f�111 ow)
PF01 Palustrine, Forested, Broad- Forested Wetland
leaved Deciduovs (Red A1der)
: 1 . . .
NOTE: Th� w�tlanA Wg� shown �bow b aRp►wc{mtb. in manna, ponds or lak�s�th�tranfltlon from sandln4 wst�r to uplartds is
ususllY U�sr. t�loww�r,tM edga of 1or�stsd or saub/shiub vwtlands an leas dktlnct. Th�r�,tM cf►sng�from rwWnd to uplsnd
often ocwrs owr a MoW srea csll�d th� "transitlon ton�".For a dlswulon,s�.w•tisna�ants or a�s coY�ey swa n,•v.y.t
e�.._�. -•--•--'---�..,....,_....__ ._ ._. _ . ... .. . ..
Hay Creek 6
�
OBSERVED SPECIES: (refer tfl list in Apper�dix 1) .
Trees: AM, AR, PT • . •
�� LA,. OS
� ��� AC, CS, LI, RS, SX, SD
Sadges/Rushe�/G�J�ern:
' �� AR, ST, SS, WW
AAsrmnslx
Fish:
Od�er.
RARE/ENDANGERED/'THREATENED SPECIES; (refer to list in Appendix 2)
Raoordod/obserrea:
P�ateert�l:
SIGNIFICANT HABITAT FEATURES:
OUTLET: T�r�: Pipe .
�� Open .
� Outflow�nten: Stream
POTENTIAL STORAGE: Existic�Activ� 4 ac. ft.
���� 8 ac. ft.
GENERAL OBSERVATIONS: Northeast corner filled sane time ago. Head waters .of Noney Creek
YETLAND EVALUATION SUMMARY:
Dats was.oollscted in ths five eategoriea shown below. YYithin esth estegory ths data.wqs eveluated ta producs numetical values. Composke
vslues for eath category were produad in order to oompers eech weUand to otAer wettands in ita wb-basin and in King County. The rewlt of
that comparison waa a perceMile rank. Tha percentile is expreued on s scsl�of oM hundred and indicates the paresnt of wettands that seond
aqual to or beJow that psrtfeular siU. Fw exsnpl�,a paresntile rsnk of 80 under sub-4asin msans thst Me wstlsnd soored equal to or b�tter
than 80 perc�ni of ail sites within qM wbbatin ia thai evafustion eattgory.NtOTE: TM perantiie ranks sre valid ordy.witAin tM indhidual
evskiation cs�egnry and ars intsnded so1My for rafe►ence snd compsrison.
� Rank
Eraluatan Category _ (by peres�rtfiel
S1�b-b�� CouMy-wid�
Hydrobgy: runoff seora�potential,water qusiitY.Potantiai for minimisiny damagt b4 8z
in downsuesm artes ' -
61dOgy: quafity of habitat,abundanee and diversity of plaM and animel spaeiss ' Zj 2j .
VisUil: diversity and oontrs�t of wetland and wrrounding vegebtion. JS 34
wrroundlr►g Iandforms
Culwral: cype:of acass.Prox imity b sd�oots/inatftut(ons,overalt 50 56
emrirorxnental quslity
Economic: presoncs of sgria,�wrc,lpe�t exvaction,anaaro,naus or game�isl+, 35 25
game bkdt or mammats of commercial value
WETLAND RATING: �
Esch wetlend wss asligned ww of three possibk wetland ratings. Tha wsdand ratuigs w�re determined by examining th�scores of selectsd
�vernory tasks, speclfie dets or ptrcantile ranlcs for individual'evaluation cst�gories. Tha aiteria wed to s�aign the wetland ratings aro
ascn'bed in the Introduction. For ea�h rating a nwnber of specific gufdelines for new devslopmer►t in or adjaant t�wttlands wsro prapsred.
�h�guideiines are iritend�d m assist in carrying out King Count�s SensitNe Arws Ordin�nce and other wedand policies. They us induded in
a oparats mpoR tiUsd"Guidelines for King County Wetlands".
Wetland Rating: 2 .
�.+L�;� 4� . l'.. �..� � � v ' •. + . � a'sn"�`� C� _�F i
_ `�33�� . � �+. - . _ _ �� ` i�' �"`. �. ". L
- F . '�' , a � ' .l ��� F y� � fi .r �t�.
`S � � i. �" ,� r•, �; F t �r,n- - - � ' -#.-- .
� '�. _ . yl. �'� a . �G� K + � A � �.
' . - k . � �; r � : �� }� k �t �; � ��•`� 1'� � _� �� � s
1� ��, �, 1
" �7 H . L ��� �' __, � � 7 0-. �. '`: j`t Z �'. ,�� --y .�t.�.� -� � �:
� ` ti;• „i �� . �:�T�S�..,� .a a•'t, . .=�- 4 R s��.`"�` . �
r � � � �.1 ""i; �� t �•+y •f�
. . .t- �:. ° '�•� • {k�5,� s�C � si �y ' i.�a Y�� "&
� � � �.
, _ ,f - - . � - ' , �� . � J ..�' L- .�•, i �ti� y �•� �..'i:� S',
. •a '� r 6 • ►�.�- �
,� � ' i �r ,�, �`:�a. � : � t��,, :� �a
:` ,.. � . • • . t � ��. .� � r 3 y F'
R'' j f � ' � . . . . � �. N � � c � �M�.�1 ���e ,Cbc
•
. . ,_
�.. '7. '. �. ..: " ' . � � O i ' � . `eQt�'b
y .... . _ ._....-'- _... _. . ._. __. � __ . . .. � ;" a �, .�
,' � . ..r� . - - "' . ". . - - ti� 'a� � `�` �� � . .
t`� � i T� � � � t�i��'���� �.�� � A
.. . . �' . y.L c � '� ;� �•,- - � �
:� . _ y. , ..' '. , .. i
+ . - . ' �S'�.yy•';i 1 � q� � ' � +,L� `C(«f. - . 2
i I . - � F Y�� ��: Cl� '� �• y i:: �yt '.£:�:
. � ((��'���[ . •'� ! - • . .._ A � j it� . .�� Y ��y�
� �: kx �• � '• �VS�.�4J�t r �� �A;�.�. �'.tt 1i'S�
�D. �.i.�, 7 1� , . " . ' 4aj�.JF��� �` , � � 1 0 Y . > � �•' � 1t�i
- `'� � _ "}� - t �s� •.�? d � j � �Y�
� � ` ' _ � . � � . .'! � .. � • . .��. � . -r` a �i-:
,. . _ ': � .._ . ,�• e . �. i �,4. �...
K. w �{�� ::+ 2-'ti. ��; ` , �•
♦��T • ' z '��� � '�y. � � � -. _ 4 � �. a�
� �c.:. . . ,.� '� . `Y a�� S . � �F...� � �� , �,
����.E =�.�� ,��' �.► ` � �: - -
� _ _� �_;�y �. ? � � ��, � .: ' ` :s '� �
.• � `-�a-. � - �s���,,�� �•� '�• - ' , •� ♦C _Y'
.: � �
-- '� � � . .. � pF � ` . �� .�- �:.
-. .. x;,�x � �� �' ��;,�;
,.�- . r ', .. • `_ , ' . d': �;�, . • =r", � . ' : � -
y' � .:;r. s ' '� �:`�� - .a' �► �' ' �' i - �� '
` " .. � �.�, �`��,^�e� - ��' .� _ � �+ , . '•� • i y:'. . �'�� �•
- �[- '�'�. ,� Y � 't�-;ti �� _ : �,., � i r�„y"�'.�.'.
- - '� . . - �.- ..�.- '; _ � , �-. , �:
�� .. . �,�^, _ T � �� 'f 1 '7�Y �'.. �• , . '�i, �:� _ t ��.1: �x"_.
*- � :. :. �_�:�.
. <.. .. . �. . .- - l� '� . .�. "�.-,�" .
. . �: � :� . . - i�
� - - � -
� • � . _ -
� �
• �
r
• . � ..• . �
• - . . .. . . .
- - . 1 - . . .
.
- - . - . -. . .
- � - - -
.
May Creek 7
OBSERVED SPECIES: lrefer to list in Appeodix 1) �-
Trees:
H�rbx
Shnrbx SX, 5D
Sedgss/Rushes/Graa�t/fern: CX, EX, JE, JX -
Birds:
Nbmmsls: RA
Fi�h:
Other: .
RARE/ENDANGER�D/THREATENED SPECIES: {rafer to list in Appendix 2)
Reoordad/Obsened: � ..
Potantisl:
SIGNIFICANT HABITAT FEATURES:
OUTLET: . Typr. Channel
Cc�nditioa: Op en
.Outffow ent�ers: Stream
P4TENTIAL STORAGE.: Exi�iny Actw� IO ac. ft.
Poter�tisl Actna I3 ac. ft.
GENERAL OBSERVATIONS: Runoff from adjacent horse and cattle pasture.
,YETLAND EVAlUATIU111 SUMMARY:
Data was eolkcted in the five estegories shown beFow. Wtthin eaeh ategDry th�dsta wss avalustsd to produce nurrierical values. Composite
values for eacl�category were produ�ed in order co compare each weUand to other wetlands in ia wb�b�sin and in Ki�p County. Th�r�wlt af
thst eompsrison vws a percentile rank. The percentile is exprased on s tcale of o�e hundred end tr�dieabs th�percerrt of wetlands d�at scored �
equal to�bNow.that perticular sits_ For exampis,a pe►cernib rank of 80 under wb�basin ms�ns that the weWnd acorod tqual to or bttt�r
than�0 percent of all sites within tfi��u�bssu+tor thst avalustlon catngory.NOTE: TM ptrcentiM ranks en velid only within the indivldwl
evalnstion category a�d an intendsd aolely for ro�erana snd eomparioon. .
Rsnlc
Evsivation Category �bY Da►ca�le�
Sub-b�sio Count�►-wid�
Hydrology: runoif storage pot�ntisl,wster quality,potential for minimizing damagt 33 69
� in downttresm aress
BiOlogy: quatity of habitst,•abundence end diyenity of ptsnt and enimsl speeies 7 1 Z
Viwaf: diversity and conusK of wetlsnd snd wrtoundingvegrtstio�, 42 �t4
wrroundt►g Isndiarms
Cuitnral: types of access,Proocimity to scAoolt/institutions.overall 78 91
er�virontrrontal quality
Econanic: presence of agriCulturNOs6t extraction,anadromous or game fish, 78 3I
game birds or mammals of commercial v�ue
WETLAND RATING:
Eaclr wetland was assigned one of thre�possibis vwtland ratings. The wetland ratings wen determined by �xameninp t1�e seores of ael�ctted
�ventory tasks, spscifie dats or p�rantik rank� f��ind'nridual asluateon categories. The aitaria usrd to auign the wetland ratir�gs are
:e�cribed in th�Introduction. Fof each rating a number of specitic puidelina for new dewioprtiem in or a�soeM tu wetlands rw�pnp�red.
TM guideJir�es an intended to assist in carrying wt Kirg County's Sensitive Aros:Ordinsnc�and othtr wrtlsnd polkia. Thq srt ineluded in
a separai�report titled"GuidNines fa King Courtty Wetlsnds".
Wetland Rstin� 2
t: .j. :ry�s;. a"" .r ' r�.... �. F,_. ..�, � ,-_ .
♦ �t y''� �,,4' �_ � ,�;�.r�.` -t t � ��� .y� � ;
�Q+� �+-��.}i.�(?-��i.���, � J�� �lF� � •� .r"�'�� i� '�' '�"�= � ,� �� 3lY W', �T: �E„�!
v.�t�.
, �. _+y �x'r �s"��, s,,�t� yi.�,��'���/�i.��.,'.��+'r'���� .�,��� .i"i t� ��;s3'-+��)�t ��.:$ ��' � �
:.�'�4 ,r� '�.{ �'���,'`��,��.+r�ss�.:ij.�`�'f'Yrwuyrr`�.`'.�� v,.r.'.+".�,�,A:* '/'�F';, # . t;'.• Y y;.,�` w, l'i . . s� .
- °�� r,�' .:n� .r ��!�j'�'.=s'�+y� 'gd•;�y9!���•T;��' :t,d•�l�•���J 3,`� `r�.. + `",:�-h`.. �rZ' ..p "j*�'.•
�. '�: :��r- � � ..r:��...'7R,�. - s��.k� �.sw ,.^�'.:�r i��.� f' -):o�;� 4.. '1#'��s�
wf�e�'.:.. ,t. �t'�� �����s �. � �t
� �'����.. lo'^$�'�'JT�'���h'�'.''_'rjt�,�x •�''�' .;b �t�_/�-lL��• :�,•b ��T �,• ��• �•7'c,ii +. �• �.�
+� �,#�#� �.�`+��_���/�`�!����'`�}1�d�����i'3�:J�t�-=�=�'�. f��'�{.`rh...v'��, �' :���j=�����f� s; �,'�F�y,� :�..
_��••`ifl, .��;�c.M'�'" ���.�'�s��d'�,.�;✓':'f„r��a� �. �L�r �,���'� .4�5,'y.,�-'t'ti ,7fi d�:if�'> i:�-'y�
' f �Ai��«_4. a...-..�.� a,��� ��,� �� i .�� t� � 6 1�` 3 � d�'
�� .. .r ������y �." L,�#fd�ai `,•;�� �.Jf«�l"f��.+ �. A�'',��'y�`�'' a' "`:c
.,� ��,� �q,P"i'�.4" }ss',�`'�^ s�,' n6'���.��yE�'�r���fys'j1� ra '. 4 +�i N .,,y'T �^7�::.• • ��7j'.� :�.d�C'
•�' - a s Yj`t ��i:�:.$°J1'sh1 "7y:�`�.'rcif � -�' JA` y� �'✓j� v. J ->:J f�. y>
,s- � - � �' �... 4 . ;1` r +�1�,�,rr, � S � e5�" f> , '.i� . _.,� ',�. # '�.
�� ����i'2 }-gj ��' ��;�tx�;;'•�rir`s'��"y!•;��j?�,�lr�};S.`}•''•S• L'�' '�''� �'� � '"y '��°� �ti,` •{.t
�, �; l v ..w -` .� ..1'� • _
• .'} u -Ci i
-'j-t .b : }-� � : . � ��,��n t _ .^�.a .!t^''� c a•��Y'i*! �-�" = k47�+s � ��gw. •p ' J 1 . z"'" .`�c
t :r � Z ��!- �\. �i �f�i' �'.Ry�,�.-� 'fi�- S �' H L'.
.!✓�' . « ��1 '`. "CA .,r?3� r . ;�� �ri'� , .�X..k '�' - .T�,
�i�f�. . �= �� ♦ � r�,��Y ; �'� � ' /` .�.,� a � � i! �.}� }..�'7t'?
�{ t ,F � y / }. � J a��1
.. y�t <+�v9's;�y `��14 ���v.,,�Y+n��, f ;� :L =.h„+� �/J.rs �1�►a r� � a� --' �' �Sa'�` ;Y r� �.J•�1
r_. � y j''K t` .�+�- 'r i � � •�J'' .yW••f `t+-. . •!'�i, -F i;�. ^'�:��.��X' �.��':,,w�`
.�.ei ' � t t f __ �� S ; �. '� i h.�_ 1 � ! s l+. . .%s-.s.1 j � �
�-�� � � §� .♦. � �L.-�' j.Lt--�}�7�.� ,�.�` ♦ :f�',� a:��7`'�I..p�.��'�,� •Y.= yF. .�� LY'', r=t� t�".�♦ y?�¢�s.�.
r' � �'r7s i � Y. i ��.� � .� '9' � �yi.�'x �_ __C �. i 1 7' +� +� if?�.�,'� ,hj.'
r.- . a ��' .9 � :��s -f� ' ; � y..c: �' ���'� i s � .�f • ��35'.y '�.s
�.} s �. . i �+
�{,�: ��,_ .t�,�J�4�'��� r _ ���dv�Y�r • � t�.i,�tK'�- .�. ��71s1 � � �,�.'' _p,.� i �F`{��,r .
,IV , ^�e��f! 3r �i !�' s .� i .• i_ I :I. : +��', t. .�.'1 � .
.r.l' . � ^.�.�s �{ fr t �K+ ;g� •j !1r! � 4 ♦ i _.� i
-: ✓ . yns ��ro� � � �`� �j. ,.X '� �.�':.. . 'r�� , - 3 ,. � �' . s'. �.]�`.ar-- t
.c 5� .�,� � �"-t �i � .� �, r e
' ��-'�sYi r " -e.�. �` - �t�rs . y+ �.s., S.��••s `� �� � L �
�-r r:� ..�� t . . .y . '�,J 3•.A :!f . .� � •
. `fl',j- _ . � .- a -. . - � -
`M , �k �7�! It � } � . . r t�� � rj � .
f Z r � '� l�`" • r ` }`�+ Y�• a ~�� .�� �{' i.ru` f ;i'
� � ,. =i.. � �•i v�, - � �y„� r .�.� �,.� � t ,. ��-_
� �— }' � r v ��, {�-c'. �2,,...-• j ' ;.:
� c' '� ``� � � Q� . .,�+ � � �.� - � ��. r' _ •` : :�
--,�-. ',�: '�"-� � _l �.� -�;'r_ r-a� . :-•.,� :�f�>.
'•T ---�*�
�s T'�, 'r *"'�w �� .%�'�'- -��-�``� � ��.
�`- .� z• r. . .• v ,�. �^F^ - i ,� ��'`
�i� .rc,fY�� �'-. t �'~ • ..y, � •��� .�.. � f , .
� t� _ � ' .:-. _ . :i�t\. ''t� .
�"�$"' +��- j i,'3'� r• . ' ' �•� `-a.a ct CT�.�._ _..r
�r.+eTi .,`.� �, .r+"�s:.F '. • -� . ' �-�. � ..� , , . '- �..'•' .
'?��� .x , ,'�Z�h;� � �+� "! .�r - . � � .. �. . • ' �_ .
...-. ^� _ J ��- ,�z•��.�r.�' .s . . � . .. .
! ��� �� «~. �� � . ' . .. - . . , . . . .. . _
°Kt:' .. .. .,,- �y�. T' ifC�4 � �I -
,s� i' �"� " "�li ' r"� l%' \� -
• � �. • :1
' � � • // /
� - - - •
• -
� • � - � -
�
• �
'1 � . � r: � •
' � ' - I� - - f� - -
- . - � . . �
- - � - -
- �
' - � . s . . . �
- � / - � � •
•
May Creek 8
OBSERVED S'PECIES: �refer to list in Ap�ix 1}
r-
Trse� AR �
Hs� MG, IP, NP, PP, RR, TL
Shiubx SX, SD
Sed9es/Rusha/Grass/Fem: J0, JA, CX, fX, JE, JX, LM
B�� VS, BS, AR, ST, SS, YT
AAammslx
Fhh:
Otfier.
RARE/ENDANGERED/THREATENED SPECIES: 4�er to list in Appendix 21
RecadM/Ob�trve�
. Pot�ntisl:
SIGNiFiCANT HABITAT FEATURES:
OUTLET: Typ� Chann8l
_ ��d�� Part.�ally Blocked
Outflow��oee� Stream
POTENTIAL STORAGE: ExiseMg Acti�r� 6I ac, ft.
PoteMial Activs: 61 ac, ft.
GENERAL OBSERVATIONS: �
�IYETLAND EVAlUATION SLIMMARY: -
Dsts was eolleetad in ths fwr categoriss thown below. �Within eaeh.est�gory tA�dats w�s waluatod to produee nurr�erical valu�s. Composiu
valua for each category wtn produced in order to eompsrs�ach wetlsnd to other vwdsnds in ib wbbasip and in King County. The rauk af
thet compsrison wss a peranttk rsnk_ The percenL'k is expreaed on a scek ot aw hundred snd In�at�s fM peroent of weti�nds tl�st scond
equsi to or Delow thst pertkular sit�. For sxampN,a pe�dntile wnk of 80 un�sub�barin m�ans 1lwt tM vwUand s�ond aqusl to or bett�r
tMn 80 pfrcent ot atl sites within ths wbbaan for ihst evaluatian pR�pory.NOTE: TM p�rcentlle ranks an valid only wtth(n the indhridusl
evaluation cstegory and are inten�d solely for r�taranct and wmp�riion.
. Rank
Ers�atio�Category 0�Y Pe►c�ntile)
Sub-b�tin County-wid�
HydrObgy: runaff storage potential,water qudity,potential for minimiziny demage 92 93
in downstrwm a►tat .
BiOlOyy: quslity of hebitst,abun�and diversity of ptsnt snd animsl species � 78 g�
Viwa1: divenity and cont�sst of weUsnd and surroundingveyetation, 100 85
wr►oundiny landtorm�
Cultu�al: typu ot aoesss.p.oximity to schools/'untitutioru,owisll 7I 78
envita*nental quality
Eoon01f11� presenee of aprieultur�lpest exvaetion,ansdrvmous or�ft�, 64 25
gem�bi�ds w mammsis of commercisl vaius
WETLAND RATING: �
Each wttland was assigned one of three posibl�wetisnd�atin$s. The w�tl�d ratings were determined by sxamk+in9 ths seores oi sNeeted
�invsntory tisks, specifie dsts'or p�►centils ranlcs for individusl eveluation aRegories. Th� criteria us�d to sssiyn tha vrtdand rstinga an
dacribed {n ths Introduction. For e,ch rstiny s�umber ot specific yuidNir»s for ntw developrnerrc in or s�aant t�w�tisnd:wa�preps►�d.
Tht guidetirns sre intended to assist irt carrying out King Cou�ty's Sensitivt Area Or�nsnts and oaha rreN�nd pdiciet. Tbty an indud�d in
a s�parat�report tit3ed"GuidNina for King County Watland�'.
wetla�d Ratin� 1 (c1 .
.� . _ , . , �.�� ��y,#,. -..;1' 'i:_ �Aa._. �.,,� .
'' � 'l�i ._ } ' : � �:' , n �.M#��� P •�:. 9
%� .�. _�4 t r �' 's t y ''•�`� �.Y�JR: '`�� �� 1 'r.. �� k. �. �� '. 4�� i
�.+.� - ti.;.r_ `��,�`",gy s ¢ yr i� � � .� ` ;�...'k'�� � 'r g .�V-� -"„1. �:
� . ♦ �i .''L��`�=��c� /'�:y a'�'� S�0 � ��: �.�.s� ��s`
- � :+ : ..�� ., �Y% y�l :- ... ..'� �fs �r_.>� ,4 u
~ fr � f . g�, ��q��� " 4l : �4 ,r h s�-y'�. • � ai -� M�
�� .�3 f}���t' � f- 'a .x a�.. %�.rw• �'. s 4. �,-�'s ` s 1�:�,'�►,�� �:> .fS�.-.���"7 s+
��� �- r "< 1'"st �.+ 5.�� r' �����'��' �s - s -� S .•i j �ti.R
`, e_-j�e " •s' �. }`� "' •�'� .�� $� '�:� � ` IKfd'Rv z� �. �f-4" �."r
'`.- d ar i �r�.�-�� _ .T� � .�_"r '.� 4:.,:1 +��f S .. fY ����`
� + � 'F 'r`e� ."'° � � ��� � �� L _
_- � ro �'a-^ �'j , � .. . !.. �a �„' k �
.. .. v. � y`A � �: �. � y �' � t e e
�a ��j ,�. � . -"4�.s.,'x .�+,�»'y � �.� �7. �" ' �i .
� _
° � ' " v. � t�� �1
. �
r . +��. y.�s � ,� �,.Z��- ��' �. F !
`��- . �� ��� - ��� �Y ++� � .♦�p..� � r.. �. - [��y�� - '-.
- s ♦ . f��:. � ,r�, i��as� ti � ` � Q . .�;:
... . " ' . _ � .�G�"� � . a�S. � ,�. �,�! . .. . . , .
. . 1�. O .,O .. �:;i'} ~ i. -i.� . .
," - � . . � .�/�',." `.� _ . �" �. . • �t
., . . . , . . � _� - ;. s,t r � ! -� �y.-
r�
.:s c
� _ . "� �' � CL�J'o. � r� s�
- . . , y� 5;,�, •
.. _ L. • . . . ��`' � •r � ,��AK` l �-�V�r+
.r`� i . . - . 4 .�: a '
. - � � . . ` } � 'f�•� .�-���'` .N
. . - � . .. � - '� ' . . i �� �l� � +1 v
�� '' � r� ` _ yy ef�`�r� 3 � • _ �` �,i� �„t�
f '�-i ^ _ `^�M� .r;,�' tc� �� .'s. � , "' � ?
4 ���.�! }� Y ti
'� .. - � ,' �". t�',ye -. � � 1�-'ti.<. . ��' .' •� ' � {► '} _''s�`,��
. . a .':i � 9 _r �` :F � = '' .�i"':�v "„� ` ' 3 .s�e
.1 .- .l .:d �. � . ��� �1 � '� y+ . . T. ,-i S_ .
-n '�a' 3. ' ��(' tr�_,y� -� �'.� �M.'�� �'"! 1�f �'i i� ; ,�1� � �.• t
,�_2T -�+ d`tie T: n� �e �,� ij •..r/ l� �, � 1..•7
:d .; 4 .?�`�i�� .��,y` 4 i�� e.�� TM+- }�s_Z.� . _ _ . -�� �6 �
• _ �� � r „� 1;'�.+.,s,,,� .. ,t�.i' !�
r.,1, .:4 ��ww.1.�W��',�i f y� �7� y� �i .���, .9. . ' . . .
.! ��a:^Y �� !� � �� �' }� ��.�^ � ..� q� �
:;�.. �� ` � _'�,���-'�- �•�*�•�-� ��,: .
��N - � R��� @ 9'. .�aif"'-. )`_ ���.�'. .a _A ,
��� »t _� "" s� �� •�. �''�'�Y�V.�� ��' �� ,`V D�i �•' `� �= ,
�:- - �M9+' ...q- _� Zi;:y � .� �� i
' ��� ��N�'J'�/4..3 �'w ;,� .,y,�,p� ��O ��`IS_ :�P�'*����. , ' ' ,
,'.�.'- �'' •�,��'�'.�,k Z.� �'•"' +' "�,. . `.► '- . -# '
:�.�.'� -'i: � x -i� ?� .� c"'• - .�,.��e
• • �. • :1
• .. � - f/
� - - � -
• • � •
_ , . _
�
� ' � �
f
`ti f � � . � �
� � i •. � � �
' ' I � - I � �
� " 1 •_ 1 ' ' 1 1 ' ' � �
� " I f ' I � f -
�
G
Hay Creek 9
ap
�BSERVED SPECIES: trefer to listih Appendiz 1} .
Tn�: AR
�x LA, DS "
�++�� SX
Sadpes/RusAa/Grsas/F�m:
�� AR, ST, SS
Nla�nrna�i� �
Fi�: .
Oth�r:
RARF/ENDANGERED/THREATENED SPECtES: (refer�list ir�Appertdix 2)
R�eord�dlObssrved:
Pot�ntW:
S1GNIFICANT HABITAT FFJITURES:
OUTLET: . TYP� Channel
��= Part�ally 83vcked
, Outflow sat�n: Stream
POTENTIAL STORAGE: ExiningAettrK S ac. ft.
��'�A��� 53 ac. ft.
GENERAL OBSERVAT70NS:
_VETLAND EVALUATION SUMMARY:
Dsa was colhcted in t�e�categori�shown below. VYithin eseh ategory the drta wss evslus�ed to produet numerieal vslue�. Composite .
values�for exh ateyory wen produad in ordsr to aompa�e each wsttuid to athK wsthnds in iis wb-b�sin snd in Kinp Courtty. The hsult oi
dat compsrison ww s percentib rank. Th�p�roentfM ts eupro�sed on a scals of o�hundnd snd tndiestes the psrcent of wotlands thst scored
eqwi to a bMaw that partkuiar site. Far exampM,a pe�entiM rsMc of 8fl undx wb-bs�In mpns tMt ths w�tland tonred equal to w bemr
thsn 80 ptrctnt of alt sites within ths suabasin for tAst av�luation cat�gay.NOTS: Th�percentils ranla aro vNid only within tM individual
•valustior�c�tegory snd ars intandsd aoleFy fw rNennce and comp�ri�on. .
Raok
Erslustion Category tby�n:entilel
Sub-basin County-wid�
Hydrology: rortoff sioraye Po��.��WMKY,Potentisl for minimizi�g damsq� !FZ 72
' in doYvnsv�an aress
8fo1o91►: cwd�ty of habitst,abundance and divarsity of plsnt and snimsl rp�eies 14 12
Visual: diversity and contra�t of wstland and surrounding vegst+tion. 35 � 34
wrrour�ng landfamt
Cuifu�al: typa ot seons,praocimity�o sehool+linsciatiam,ovenil SO 55
environmental quslity
Eo�nom iC: presenoa ot syriala►e/peat extraction,anadromous or pems fisA, 35 1 S
g�me bf►ds or mammals o!commercial valu� '
WETLAND RATtNG:
Esch wetlsnd was essigned one of Mree pouibla wettand ratings, Ths wetland ratings wera datertnined by examining thb score�of sNsetsd
�ventory tesks, apecifk data or peran'tik ranks far individusi evalustion eaD�goriss. The eriteris ussd to atsign th� wetland ratings aro . ,
.acribed i�ihe Introduction. For each rating s number of specific yuidelines fa new d�vabpment in or acysant to wttla�ds vwn prapsnd.
'h�guidelines aro intended to eaist tn carrying out Kir�g Count�s Sensitive Aru�Ordinsnes and otfi�r vwdsnd polici�s. They an ir�clud�d in I
s separat�r�port titled"GuidNirns for King County 1MeUands".
Wttlsnd Rstin� 2
�. yC��,. -a 3� . y`. 1•A, r��P� tf' ,�4. ; -.�'rt- - . � t _ .. A����y� �.�l. �� a lyr�
����.� d._.��- ,n �4ri,ts'tyS?li'37. �r._rc�i� z�` ��f� � �i.� ��3 � � 4'""!/.�^w �'�.�tg�
0- �T Q. �.� �.o:♦�� y - s�.�� �`�� ..��� te ���� � S.t�• ��'"�
';��.`r1 4' 7�,��'1/'� ; 1 M -.. �� '? y_ .� .. y. n�_b' ;��� ..K}y' ��i�0�3�
° p' « � -. y� w-r ir� S,�-"'e s b_ a r ! t v t t•"yT t ''y �'
6.,_ - t� .� , �. �li�_�T�' +a;":� 'C"> � �,i '♦ f� �, �'���:.r � ��� �
..�-�`l,a��tt'' �,` :�,. LO � a r �3 *-',.y�.•�.T' y� t � 1� �t� `f��� }4�M� �'1 �
,t.-��»� b3`t y... 'i: _ q.K1 4'� .- � � � �'�-'.i.ri, XO � t �� �1�
a �''�t��•' 3�fS.�f'" � h��.+��s: 1�v��:� a st�•:t �s� �e�� sR-�=���3• '�L�
:. _ `��-� � ^'t�.� 't�� -.i ;�'S;q 1dg.���,.t�a \�h4l�, '�� ��i��l � . �`. � ;4.
• .n J' ,i�..' �.4.� v � , , � t�
-� - - .�,. �T`� ,`" y;� ii�.'i°eS.'}y��h srr2'Lj���^� ��,�•.�';�i ��� -� " '"�aR'. k.
3 ��_ � at;. *'i*!" �4�j�+�.,`� . . .
+.� . x s`.'`�y� i ��ysl+�'� a "s'! '� .�'�S;S��-� i�'' �yl'S�1't►'�.��' a-�, i.f, -.k�Y
���+�"t",K�T,` A-. ,E�h!1�� � R , � K*{��i �l l i.,�'`��Z.}"• ss��`� • �' �``i�...
� � �� -. ��'��. '� aa;� ` ��'��1 ,•r � �'. .,y��_ <
���vti! � s����� 't� T'f"����ti'i ��. *rif�'`a�-� * � L.w ' ��7�-.
: ` �" Y 7� "'y� �a1..� .•'�� ��x'3+�1��• a. • ��,�v,r i�T'"f��-1.
'u {y Yf-y. `�v
�F���•�q�+'�� 'V�` ��. '� ����}'•Gf+ � . 2 i yY�k--.y�'} ��•��L' . �� _� T.:'�s
_`E� �L ti��;S ;. -. � � - i..��.`tR ���sq�! A�'�S7'.y�yi� �`t� ss*st` S��.�L�
:�`4 1. � . "t a�9 Lp� 7' �: 3`, '� -:.�.. '*�•�}P � � �S► ..?�^ � ����"o
�r \.4� �,�imiR'U�,y� �'T �'V'�� sq1�s i �� .h a�1A+'�� c �K�ie, ~� y,�a(.�i�i�.� Y
R; " . �� �'�afii �;�t+n zy.�.�l�e�.�.¢�9f }�t �="x2?'�jT 4'�'} i.�•�.�..4 ��',- e Y'��r'iR..i i`�',S +i,.. �. >�i.
'�a� _� � •� w }�'y'+����[�' '° s 2' _ t- h'�a��-.`d� �Z:-i �' �1' �Y� ..�.�`� �,��s�
eK-� �' .`.'1L• s �y.� .. :. �' Ay���• �'
x �� �L'Edw� .. ! t"� �• •�},�zc-a � - � .-. �` - , -�,.� ^ �� .
-:��.ii2va.�+7� ���� ` a.� K I ����. ,� � }A1�. � �sy� � R��-,? t£ J
���r� �..�„ �''��� v�-�i�i ii�,i� �� ����a� {�L`i� � _ ��r`#.s i . . s. aj.{�e. .
�• ,•��•''c- ,a • +. "�a a�.ery,� +�r•, }.��� . �y� �+. � . Y}�,� _
''`� "�`Ay�'R.. L;�It��� S � �'C�'1ca ��r���i�_��} `t ♦�i`tY�'��t�„� �s +y.� ` Qfi�. ,a s�.'Y..
�•^4����'i ��� � !i} �?� a�+.y���. A p. ��;'�• }-,3� ►�>`S�r ': �A�-
t �;W .�i S� ��s �'•�\�1'� �` � +�- . FQa�+ �'l� �� . i7�, �� t ��' -$"•
'� ♦yl,.t ~ �..�y �
��y` �4°��p � ' ti�Y{qI ' 4'4 ,�T`ri�y .. `�y.t.�'�-:\ ,�'`,�.�h7y't�.-r���"y�l� '
�� ,���ir >_'a. .,`rysA.'��., .��, �' �:tq �,'X��{�:w � �.� �'S: "'�:J.t'.��`° �.rc�-�.
:�� :f.�' -� �n"���'��� �� ���'" '�, tc; b ti �'�:.• ��*-�°G�3�'
�� � Xr�* '�". _ • ''4a�� '�•'.r�`' '�'.i-t�. r�'�� ��'�.�.�`�`.�;� �i��, �;•�„Ct'�r'-'-- *�'"'`�
�'``.� ���1, t�+�y�'..�i �-��. �k`k`��A`�� �-�jE_�� �"�±�-t^,�' � 't.."t�:_ .a� �,b�yC-. `� r���yQi�.
- r+.7�__ �� .�..'a'�: `�'��'°5.:y�.1�-��'. .� �: W �r�*,!'_��;�i�. � a�j'y`z� M -+.tu�°� `t`'"� a" 15i .�{ia4��,�'� K *�
��� �...� �. +�_�"{ � i . t �� - e. t'-
�,s �-y't ��•s_ a �C,�tl �Sw�, �se rt'�. c ,.'�ti, .� �Z`L�• t1':,�.. 3 ..
Y'�� �a� -���' *�.:•��*.:b�,`"�'�k` s�-���sX��'�:F:,_^�`- "L�i•i����a �,'�`Y��'`ln,�.;.;
v . '�""'� r,,��. �,.t�.` 4 �-- � � ,��t�Y``���.,'����' 1 �,_�!. a�.�' t,� r :����
� :iC .�'3�4�'�!"! `\ �S ti y.. y .� ',�`•Yii,tti i � �S .
�'� � �E' �-. � Y '9� � * �'3�; � '�.a_ w � ,��'�;.- �1.� .��:+� •g�;:\;�
. : 'y },.� `
� ����`}-,`, ` '���I �?� .�•� �;;Sr'�+ L' -. . ��'�t� ��'L4�' C�w�.
'' i,te � c u��. .. ,` !` Sr� �i. �[ 'tc 1 0 ��� a7►
,� `�'8 1 ���'.tl 1` � 1at� �'� �4j`S.`��?-�'.��t �pr.'-�l**-�� '� �31. 1_ j`_ s�k -
�� �b ��� � ������ S 4 '��1l�4���S`s��' �! • ��F�4�-` -1 i��3�1...`,1.��.
�S- ���. ''a� � � .� -i2. ,_. � ��;••'�....��.�� �� s3-c���avSs.��� �-.�t l S�,.
��, � � � .���� �;� ,�� �y„ -
•�,� •�• 'ti'��' �� �c � �i. i.�~ '� �.''ne'�; .� Lr,c. y�1e�,�!��. � •
'�. ��`�,h _��Y �r'�.-�����.,�cr"."'.��' �5����� ;�,� #'.i"� ' �'"�S''_.'•4� '�{�? �
� , -tl a � y� �.
� 1�� y„'� a.� .�.� .t..��iS C `�q•^' �.,�. '�1+�. i 'h-2s.��. +K". 5,���L !��
�� L s ��- M.'$�' ��at;', ��'�`� �'�MbC�! .�yz"�'�:.�4� ��\�!�A:=�.'t`4.
Y� Jv 1
' 2 _. �` ���w `�, -�a. � . ���1 ;`q`: ;���t��,." ,�����_ ��
.A, ` -�'�� '�� _Jl�. ',��y �"�'F z�'' � �" `, '� "�` "�r� ��''~;
�`� _ i� r• a ;�^.�s�.,3,.'�yr y� �� �+1.,�`S..S?���tgr_ �1�. e�"`�K �'
�'rr. ��"�, 'i. � "�aty `�i:. �s.,a :� `. �'s::�-��� _x ti�i�� 34� }�, �,�\�'
• • f. :1
� � /f
� � -
� • � � - �_ -
1
• �
`ti • � � r� � •
- I • i • . i •
' I � � ' " '
� � I " ' I • . I � - -I ' �
' _ I � ' I I - � � 1 '
�
�
e
May Creek 11
OBSERVED SPECIES: (refer to list in Appendix 1)
�
T� AR -
� ST, LA, MU, OS, TL
�N� AC
S�d�t/Ro�/Grs�/Fsrn: AF, JE
B� RH, AR, S T, SS
�I1�ansalx
Fhh:
OtMr:
RARElENDANGERED/THREATENED SPECIES: (refer to list irr Appendx 2)
Raoord�dlOb�nr«!:
Po�at�al: • �
SiGNIFICANT HABITAT FfATURES:
OUTI.ET: TypK p jPe .
��� Partiall y 8lodced
� Ortflvw utterx Stream
POTENTIAL STORAGE: 6ci:anp Activ� S ac. ft. �
P°�°"tiai Aetwe: 52 ac. ft.
GENfRAL OBSE�tVAT10NS: Neadwaters fvr both Coa1 Creek and May Creek tributaries.
IETLAND EVALUATION SUMMARY:
Dats was.ooll�cted in Me ti�rs categoria d�own befow. Within ead�cst�y�ry tM dsta.w�s svalua�sd to prodio numeriai v�iws. Composib
valu�s for sseh cece�ory were produc•d in order to compsn ach wetland to otMr wetlands in ia wb-0asin and in Kiny�ouney. T!n rowlt of
t�at oompsraon wa a pemntik rank. Th�pereentile is acpnasd on s seak of a�t hundred�nd i�diesas tM p�rosnt of wetlan�thac soond
•qud to or bHow thst partiwlr tita. For uampN,s perarytiir eank of$0 uMhr w�ps�in rtwnt thet th�wttland�cond equd to or betqr
th�n 80 pero�nt oi all aas within th��ubbade to►thst evdu�iOn cetepory.NOTE: Tht p�rosntil�ranks sr�vaiid anly within tM individwl
ev�luKion pteyory�d are ints�dsd sot�ty for rei�ranoe and comparlsoo.
Rsnk
. Evalustion ptegory (by pactntilel
� �b-b�sin County-wid�
HydTplO�y: runoff storaq�pottntiM,wam qu�lity,potentiai fo►minimi:in9 d�nsyt 8S 92
in downsveam ar�s .
Bbbgy:. 4�+MitY of habitst.abundance snd dive�sity of plant snd anirnM eP�s � SQ �t8 .
Viwd: divenity md conus�t of wstland snd wnounding wgeotion. 7 1 S
aurroun�np landtorrr►�
Cnttlusf: typa ot acceas,proxtmity m�hooW�rxciwtions,overM� 1 DO 99
environment�i quaiity
Eoonorn ie: pre�snce ot syriwlture/p�t extrsctton,anadromou:or y�m�Mh, 100 79
gam�bads or mammals ot oommereial vdus ' '
WETLAND RATlNG: �
E�cA wstt�nd was aalgrnd one ot thret possible wetland ratinqs. Tt�wetfsnd ratirigs wKs determined by examk�ir►y th�xwa of telectrd .
'v�ntory talcs. specitie dsv w pareentiN ranb fo► individuN�evalustia� c�teparies. Tl�� critaris used to ssdgn th� wrqand ratinyt an
�scribsd in tfH Invoduetion. For each rsting s number of�prcific gu(dNina fa naw developrt�ent in or adJsceM to w�Wnds wtro pnpsr�d
h�puidNir�ar*iMended to sssist in carryiny aut King Count�r's Seraitiw Area Ordinanc�snd otNer rretlsnd policia. Tf�ey an indud�d in
a�parstt repoR titled"Guid6tines fo�Kinp County WsUsndt".
Wetland Rstiny: 2 .
� �4 '� .. � ., - . ' � �
� /r•f
��i� Y .`-. ... >>4.�/ ..l i�<�.'l: '�'. + � . ' l � r _ �. .". e Z . w��"� :}'t . �`?�
` �.k �X� { w�J t'Y ..^''�G. ���� ���! �r� , Y'r,^+. +� �_^ .3' .��� T . ~
- �` .r� .��i y. r'ti�''�� �" .✓�. � I 5 �y.-y!r" . ..} +e% s,, -
;' F� �y�M�. 'Y.�� 'tt- ��� r:., 9 �-�` .. � ...�axf .; t .��� r ;..1' � '
r +� � - � � , � �� K.iz w rls� . ��.
',� f ! - s s..
�. 7 �. . ri � . - -r a , f ..c .i ? � ! �. s'
j. '� . A �.+'�.-� .i t � . `Y'f ' �. '
`� . � �• .',!'�h . r � ti�..F' � i. � �1 .� .. ��l ' .
� .}1,4 �Y Gf �r 0 ..f_ E � .�, ..� < �. '
^�-� t t �.r' e.�" � .{� r'�'�+ ;.2 : '.s 'F..�.� .'�``' ...FY �,,,!� •
�, i.# r�`N„��� �� � F� ' .Y� :.�'
���.J t� � . , i .y��t .� ` :S .�'�: �� j
� � �c• sz "1 .. :.
� �1.' ' ,s -'.+! Y ;tL o._ �. .i• ' t+ . t � �,�r� g -
s �'g�. ', � �Sy,' . µ�'-4 ���'` j ' ' - -� :� t f ti�:.
' �,.. � � Y.: _ ��ir'i,if�yrt. � _� �'� -r. j.�'�:�5�_ +`''Y�'� I.� :. F.;.
`-"'' �{: �> `, - __ ��`1,�. ., ` :� ���,i ,,7 . ;
.t� . • , Y `t �la�'. `,, � v• - • �
4•'��:3+'�'� i a � a - �r-3e..�c;
� ♦ t � `-�` ��j,. � . .j4. ,i�
t �
�?,�.r• .3 .' .. .' . : . � j . ..
..` Wt1Y�Y .�� `.c..: - F y . Y . � `:
�• �' F� �� , _ � 'a..'.•� .t' ' �
`!c�'>,.'��„`�i.s1' `v • � �� . .� i.�e' ��:.
�• ,C� .�.:i� . �c .� , �' ' lk,.' '� �•
.'�_ �1.�_1Lr+iry, ����� - '�.:� "�' � -"� �,,i.,�I '- f �:3�!-� •��.
`p� i
.� �i�j�. .J- _ �. �.i'~ ry��' � i R y"�. _S h� ,� '...9 ' � "
R � [ . t � ` � �•3A�.
t ..�'� �'' ~ �;• : . ,,��' • >a .•� y�. �z �� `r
-,� ,`'�" . � .: • t . <'• a �„y-
� ��� � a��.. . _�..•. •F� ��� :it .. �' _ `'''s�p�" � ,
-� �f;� •'-S .
rr- ' . !.. �dy� . . �:
`1�' 'K�'� _ 4yy� �.` - � i � 'c s +��3 .. � . � �"F.
�' j���Y. �.� �. . � '��� .l� 2' . � +, . .. -
-w' 'f`-Q. °..�, � < : r - _ � ` . . t
' i.K �.h � �s�l. � � � .. " : Yr�:'
'"� � - " 7 � �H . -t. . -'r A . !� f-�� Y '�' _ .
. . � �t . . a.,. � .� s. ..s y X_ .
j{ A - i � � - . �r r� } �,�-�c _ �- •. .
�. �k`' .5���'.�`i.- �4 �'se�'4K i � `' � �• -'!•_�
i:'��� � � :` �`r ` y _f . - �'"�� 3P'`'���� } `.,�. "'2'f�i�':_7 �.,,.4ry-
y y �a •:•'ff`•�`�P. .'��Y + � �� .� �a.► ��i'b�T'+"�si✓'t"��
�y;' ":L.t: �+ ari'°� Y��:>j��.�.` _ Y ts� '., �'�"'.��'.` .,. 'L '°.� �s' �i.� �
C. � ^'� •:"& w'. y� .M. J,} � � . t,� 'x ,�j��.r � "s3� � ���tr�cr �?�
c,
.. ' ' Y �j�����fc+' - _ .� .; s_ �?.e.a' X'S,'�.��„�'��.i' a��v�` �'l�.rf�:,
� "� � '� � �' a�,�- �. L"�>�
� r r.,Tj- � r v�'. �) 4S� . s' � _ ' _ y ���� �{�c-+�� . i �-_a
' �=' S j� �i� p _ . .� . .._ 4'.� ' •fi
. '` � '_�..,j.:�'.� '�� , - 1 - ' '
• • �. :� � • � • � / f
� - - �'
•
� � ' �_ -
• �
. � � � �, •: • �
•/� /• - /• -
�
l�lay Creek 12 =
OBSERVED SPECIES: (refier to list i»Appe�dix 7)
Tnex
FMrbX � .
Slm�bs: RS, SX
S�d�es�/Rushss/Gn�/Fun: CM
' B�� MR
MamanslX
FiaA:
Otfit�: �
RARE/ENDANGERED/THREATENED SPECIES: (refes to list in Appe�dix 21
Recorded/ob�uved:
_ Rotirntial:
SiGNIFiCANT HAB[TAT FEATURES:
OUTLET: . Typ� pipe � 'I
��� Open
. Outtiow ente�z Stream
POTENTIAL STORAGE: Existi��Act�� O ac. ft.
���"'� 0 ac. ft I
GENERAL OBSERVATIONS: por�d created by o�d railroad embankment. Outlet is
vertical stand pipe.
lYETLAND EVALUATION SUMMARY:
Dsta vrss colleeted in the fiw cstegorfes�Aown bslow. VWthin eseb cate9ory the data vws evalunsd to produee numerieal values. Canposite
vslues for each category were producad in order to oompsre each waUand to osNx wettands in iu wb-bssin and in Kinp Courny. The rault of
that compsriaon was a percentlts rank. Tf�percenttl�is sxpressed on a�dls of ons hundrsd and ledkabs t1N percent of wettsnds tfiat aeocad
equsF to or below thst partialsr site. For exa»ple,a perce�tUe raa�k of 80 under wb�bsdn mwis that ttn wsUsnd saored aqual to w better
thsn BO percent of all �ites within tt+e ab-besEn tw tt�st ovdustian atagory.NOTE: The per�antiM ranks an valid only within ths individual
evslustian ategory and an inunded solely for m(arenc��nd comps�ison.
Rank
Eraluation Cstegory . Ibq P�►ceMile)
�b�basin County-wide
Hyd[obgy: runoff storage Potentisl,wa�x 4uditY.Pottettal for mi++imizing damaya 7 31
in dovrnsveam areas .
Bidogy: quality of habitat.abundance anddiversity of plant snd animN speeiss 42 �t3
Viwat: diversity snd contrast of wedand and wrroundiog wg�tation, 2i 27
wRounding�androrms
Cuitural: tyves ot accass.vroximiri to xhoo�s/institutia►s,ewnu 50 56
environmantst yuality
Eoononsie: pnsenc.of agriwlwnJWest extraccion,ansdromous or pem•tt�l,, 35 • 25
gane birds or memmals ot commercisl value
WETLAND FiATING: '
Esch wetland was auigned one of thrae possible wetland ratings. The wetland ratings were dsx►mined by examining ths scons of setectad
TweMory ta�cs, specifk dsta or psresntile ranks far individuai avalustion estegorfes. Tha Riterta us�d to sssign th� wrtland ratingf er6
lesc�ed in the Introduction. For esch cating a number of specifie guidelines fw ncw developmtM in or adjacsnt to wKlands wers ptep�►ed,
The guidslines are intended to suist in ca►rying aut King Caunty's Sensitive Areas Ordinance and other wedand poEfei�s. They sre included in
s s�psrstt report tiUed"Cauidelines for King County 1Netiands".
Wetisnd Ratin� 2
_ �
s } _. -
' > -� � .� �:#� .
��. �, , � �.� -��-;a
�"_' _ `� '
1 '�J;: . ����... S ,�T
i -. - r� �� =��'�'� >.=.S�L�,
r _�r _y y�. �1,; - �,
;_ � �,..'k'>.
'� -�:,_
'''1�A �` s '��3��,: -
l`i� °z. �-
�n,, .�
';i�a.
� �':
�$.
��;; �-i�.s:
�. -
- �.�; _
, � j
�.
� �s -.'������ . ..:�-.
� } i � 3
' --._��1Ye'k'�y�('�t •� �� ._a'-.
. `L� `Y�T�� r�4?l Y'�i(f
�i.�
,�r� " " - �� � _ vr.. }`.
�ti�I■ � _�� ���
I � -
� �� -'
�:�'' -�� _; _ .
L �
,yte�€=���' ��,.
-�, _ ..;i_
_.�' �
�..�,\ ��
=�
_ ;,x`l
- �:i;
: :" -=�i
; �_,
_,�� _ _
Photo Date: 5-80 IVorth t Approx.Scale: 1"= 200'
WETLAND: May Creek 13 � - COMMUNITY Newcastle
PLAN AREA:
LOCATION: NN' SE 6-23-6 BAS�N OR Cedar Ri ver
Sw NE 6 23-6 DRA�NAGE:
INVENTORY DATE: 7-21-81
� ACREAGE: 5 "
CLASSIFICATION: Fish and Wildlife Servioe Comman Name
PF01 � Palus�rine, Forested, B�oad- Ferested M'etland
leaved Deciduous (Red Alder}
NOTE: Tt►� w�tland �dy� shown abow Is +OM���. �� m+rsMs. PonW ar Iska.tM t►ansltlon hom standlnq wst�r to uplan�is
uwallY cNu. Nowrr�r,th��Oga oi tonstW or suubJshrub vnatbnd�ar�Iw Alstk�ct. TMn�tha ef�ar►y�from w�snd to uplsnd
ott�n oceurs owr s broad ar�s q11W tM"trsnsltlon=omM.Fw a diseussbn,aN 1AN1b�N Plsnb of KMf Cor�qr swa tb�Pu�t
Sorad Lewlawds siM�Gy1dNM�s for Klno CounH Wrtlandi�
May Creek 13
OBSERVED SPECIES: (refer to iist in Appendix i) -
7»� AR �
. H�rbx LA, QS
Shn�bx AC, RS, SX
S�d�s/Rusha/Grass/Fern: � EH, 8X, SM, Af
Bkds: RH '
Mamealx RA, DE, BB
Fbh:
Qth�r.
RARE/ENDANGERED/THREATENED SPECIES: (refer to lat in Ap�dix 2)
R.caa.�von�ea:
Po�eneW: BE (�'interfng/TransitJ i
SIGNIFICANT HABITAT FEATURES: I�
OUTLET: Typr. p1 pe
Co+�dtdons Dpen
Ontflaw aKa:: Stream �
POTENTIAL STORAGE: Exininy Acti�r� j3 ac. ft.
���: I S ac. ft.
GENERAL OBSERVAT)ONS: Noise and siltat.fon impacts fram adjacent quarry operations. �I
1VETLAND EVALUATION SUMMARY: � � �
Data wa�coilected in the tive estegoriss st►own below. Within each category the dsL was evsluat�d�o prod+ce numeriesl vdues. Compotite
values for each ategorY wsre prvduced in order to oort�an tecfi weflaad to othsr vwtlands u�its wb-bssin.and in Kfnp County. The rewlt of
tf►at compsrhon wss a peree�til�ronk. The pe►oentlle is�xpvafed on s saN of one nundnd snd indicstes th�per�a+t af w�tlaids tf►at scorod
equsl to or below that partiwlar aite. For exampl�,a parcentile ronk of 80 under wb�basin mean�that the wrdand scored equd to or b�tcsr
than 80 p�raat af aU siaes within tM�ub-basin for that avslustfon caeegory.NOTE: TFi�psrcentik ranks an valid only within the individusl
evsluation estegory and am intended solaty for rtfe�eeres and campsrison.
Rsnk
Evaluatioa CaLegory (by p�lel '
Sub-b�sin County-wkh
Hydrobgy: runott atorage potentist,water quality.potentiai tor minimizi�g damsp� 57 79
in downstream areas ' • •
BiOlOgy:. qualitl►of hsbitat,abundance and diversity of plant and animN�s - 57 • SS
Vlwal: d'�versity and eontrest of wetland and wrraundingveqetstion. 57 38
sunou�diny landfams
AllWtal: typ�s of aoons.WoxHnity m schooWir�titutions,owrsil SO 73
envirom�ental quality
EoonoMic: presence of sgriwlWr�Pest extraction,anadror�rous or game f(�h, 50 92
gerne birds or mas�mals of commtrcisi vNw
WETLAND RATING: .
Eath wetfand was as�igmd on�of three possible wetland ra2ings. TM vwUsnd raRing�wero destrmined by sxaminin�Ms sewes of�elseted �
`�ventory t�lcs, spmeific dsta ot percentile rsnlcs for individusl•evalustion cstegoriss. The criteria used to asign tbs wstland rating� an .
.+qeribmd in the Introductian. For eaeh rating a number of spsciflc guidelines for newdsvMop�trK in w edjaeent to wKlsnds wero ptep�red. I
Th�guidNines are htended to asaist in carrying out King Cou�tty's Ssnsitive Araas OMin�nu snd othtr wtdand polkks. Thty ar�ioelud�d in
a sepa►at�report titled"Guidelines fw King County Wottands".
Wstfand Ratin� 1 (a) .
�lif��. "�.:—_t kgL�'� ~;L��Y 4Vg��ArCr� �f''. Vf `� � �`' ��c-`li'-1 'a"' S-� "'� -�.�.�.�-�' 'sF�'!�. `s�..`- `� y ��'~A�:
,�Y�.a� ti,v . s f y� .y'r � �� y .�t� h -�'Y'cY 3.. •:� - r' t 'L
F./7.�d�aa�+Y � � Z' �, � y ° ,a � �^' ;t '7s,�s . y�. ��l`�"'y`ti
�'-)� =y�_�� � � ��R�Y � � �r ��' � �
T�++G,t-•• ,yi+�Hy' �.� .:� � `�Z'�� t'<2F7�� y;nb a�i?�3�o' - ��_ i + '_ R
• �.r a.�: r.� aty y�act - '��i'�s.•v y,,y'�3�SFY,.-+ �,+'.r • .•. r
� .L" Y�,�� fi'� �,,r' �;.�ii ri+,( W!'-. r +�..
•'� �s
r^ ��
'� .n'1l. :-�:. RI.+,' '
�` �_
-=e�'-''.,,�``,. - - `� `� -�.
''�#e ��g�a.3 ,y�i�+'�,.�- _'x:s �,3. �i�g'-����. � '. _'i�.N�� - � \,.
J' .. �c 'o-s���`'l' S � "' ' 1 •. .0 's" , 1�
��+''?"��+�-{4 "`�r`� �'w � ='�5"�i's'�.t��. "£'+'�.�s .fsgy�� �54�� ''� ^ ,1;y7+.€.:,,, �.
•�,F�} �:d>`°Y�3��?' y-� Xi,hr�.� "?`'tf���,� �r'c y?�� � �'�.� : � �y�.
2 r�„��..'..�s'„�"�e�`'„�,,,,.�t+i3' 4'� 4'a���!j.'',t,���..y��]�;�; �y���r,��-<��,�»��,i iY ti ` t
�. !:X' L�i'S f. �p..Zi f�'"s't^+.��YY.- .A'��.. .�A �e������ �' �� f
r� �
.�. +� .: �y+ wy„ } �y� =a d,t •� �°
,.,'E +��• �.r't.�+ Y k�tv�} f 1�s X t 'd�,� ` Lt Ri+ � � • �'a
L,,. � s .,�^+� �� -�2�} �w`�-�^��'. '�"w'�{� �' �'�t 3 - �'-� � . .a�
•�',�- �'�p�, ���:;�� '�-�,d,,� �.�r -,7c�.+. -� ..��f.s�'ir� � ��.�.�Ery�3�� - �'ta 'Stc K._
Y.t '�c' `G�F��.;j. �* �. .v�C ti.. �N,,3�sy'k�,s f y .-.1t`'��• ts�'b.,,. �' .� '4a:%.� � � *:"'y' �.��p�.�:
°=.t.� f. . " 9�•r�s r�� .�'yy �k• �?'-�v.�� `r` a� '� �«`r'.."yTr'K"L�� .e_ �`'��'.� . .. n �! ' .t`Y'r(s. -� a �sw
'►.�'e'�-� -i'i.� .js di :Oi 7�.y�"R .i�.S �,,i ��+'„!:""' t 's *4 �', h'^` ��`+' j¢ t�,
at�y,� �t��F:�' �NM� �+;_ :��y,�R.. •_. Y � �r�_� ....f�.� _ �y�, z' , ��j/y
t� �1 �-jl��,} �I�r ♦ttil". "�<_ R�( '1�.ti,�.lyfjt�.��'V7, l F^�t` 1"+�� ir ` �a+'S���.- "- !
'�.it � y rdS � .+ 1"1„� f� '�t. :i• ��a . � •I 1 i '�5�.,.�\ � i y ,j�.�' �'W..� 7 �•�
��� . . ik. *�R'FM�i.�.J v��!' � -.�1�,�k `i ��ic���� ����r��, : . � � r���� s
=.nf `�r:�'>_Y�"'�3. s��x_. ya{3��... .�s y. � ��� ��t. � Y . ; n�� P ��: ��f3r,a:� � e�}.
t Y l Y��'�� .%IY' �I —�, _- -."�`�d t �:�' ',k' f�'�� F=.
'� y,.9 U � ��Ri ��.�, 'js . L' ti 5 at:r r^ !j k t
� _ cs. .�� ; ra,. .�'`i�'�'��' h'+�,� ` .�,�i '�*4.i�,y`� � . ",;:zt,'��,� ���tfi `aa�r ��. '
L,� t •�fi .�._y,47`r�;S a�b_=�"�,4,� �3',y� - .e���.�''� s.�_:. �cQ -c�S.. 3�
. ;T '� •. ��L +�+�! {���C�� j� �TY"�I'l��a+��
_ 'vf.,�r �„�., �r,•, t� �''" ,� ; .���,'� ��.�.F '����,+t�� ,�i�:� �? ,r.�}� •# �.Y� s,��'�
-i'� r,h.� r: ` -�iy .+�'" -�i Sy.� �.Gs e 3 �':�' -.. - �� x'�,1F .
'2�..�3 �a�r y '� 't.'>' . -i. i" �fy. T' ',� > �`^✓f..�'Y�•
•' � �.r�i�. r.� �� Y .'.,I �• �f� ��.�5 '� �M M J��'Y r }
ly� �1 . ?. :� y� r.:l �i � :.
� �. .� '.'� . }�i t. �. �'.;, �'is. '��` P��:a AC".���tF�n'Y�� ':ef.
c. .�� _ l`. .,{� t �. - - .. . �''1 ��. �.,�� + �
r �. �[��,'`` �t��
� = �� i. s r �',�a - r `�.� � .•.� �F' i! . '` �ay� ��s ....
y �'.�'d. _..� `µ E "'� ��,� --r , _ . ' d�. Y a.�,`n�`a
' '��H�'{a� i � .. ... • '6`�-..
'� �--� -� �, , `� �"� � . �� ,�„ ,�.::
� ,�'� .t�� *p�:' a��'�A'�.�-��';� F�r ' � � :,� �'•�,:-.`� ' .
d- '+�S s a.r J 3 'a - � �> -i �
°�c�s ff��'' �_' � �p [, :� � �s
.t R R'���' ! ' .Y� :�-:F� Y' C'.. T $ ��.•
i•.�,F'�. '.� -i[,^�F r"� t .�j�g��.�'�� • + f~=� �'• �,���+.
�!"y:'�y� ;�f �!t=.'�� ��,'��a•Y: L! � i � ='=`,t',^`�$1C��+ai., ` �,�"a�
+f .> • . c".tiy' ' r � _ f � ,�' �� • � •g� �
�e ... ��,r ��-'^�.r J �'� •`4 ��-� °v � . - F r-" � •t
'�1.� t ; 'i'` ,! � r,; Iy-.�y��'Y'J', '1.
v:2
. • / . :�1 • . . • I I
� - - � -
• • � •
�
�
• �
`ti • � � � �
/ ' - • - - � �_ � � - � �
- - . I - . . / - . •
• - . - . -. . .
- . - - -
•
May Creek 14
OBSERVED SPECIES: {refer to list in Appendix 1)
�-
Traa: AR, FL, TP
M�rb� LA, HU, RR
Shrobs: PC, AC, GS, LI, SX, SD
Sedges/Rusha/(3nss/�'arn: GX, SM, Af, CX, JE, JX
Br� aR, s r, ss
Mammal�
Fi�h:
OtAsr:
RARE/ENOANGERED/THREATENED SPECIES: (refer to list in Appendix 2}
ReeordtdlOb�sn►ed:
PobMid:
SIGNIFICANT HABITAT FEATURES:
OUTLET: Typr Over.land, Undefined
� - ��� Partially Blocked
. Outflow erat� Stream �
POTENTIAL STORAGE: ExistinyAeti+r� 0 ac. ft.
P°bM�l As�+r�. O ae. ft.
GENERAL OBSERVATIONS:
VETLAND E1/ALUATIQN SUMMARY: "
Dsta was colltetM in tAs fivs cst*gories ehow�below. Within each cetegory th�dsta vws evalu�bd tc produq numertpl values. Composib
vslua for each category were produced in order to eompsre each weUand to ahet wetla�s in its wb-bssin snd in King County. Th�rewlt of
that oomparison wss a peresrttile ra�k. The percentik is txpreaed on�scals of one hundred and in�Catet tfN percent of w�ttands that scored
equel to w bNow that pertiwlar s�te. For examPb,a per�entile rsnk of 80 ut+der sub�besin mea�s Uai th�vrttland sco�sd equal to or b�ttsr
than 80 parcent of all sites withirt tht�ub-batin for tbai evafustion ceRepory.NOTE: TA�peraentiN ru�b�n va�id only withi�the individud
evaluation category u�d aro intandad solely for nhnnce and oompsrisen.
Rmic
Evalustion Category U�►p�re�tile)
Sub-b�sin GouMy-widt
Hydrology: runoN storage potantial,wate�qudity,potentiat for minimizi�g damaye 14 54
in downme�n aress .
BfOIOgyR: �ality ot habitat,absindanee and divenity of plant and animal species 28 J�
VlSusl: d"nnnity M►d contrast of weUand and wrrwndingvegetation, 78 65
wrroundmg landforms
Cultunt: typ�s of acoess,proximity to schools/instimtions.overatl 71 8�t
anvironmentsi quality
EC0lforniC: pr�arrcs of agricultura/p�t extrsction,anadromous or gems fbh, 64 (9
g�ne tivds or manmals of commeroial value
WETLAND RATING:
Each wrdand wms assigrted one of three possibie weUand ratings. Th�wetfand ratings wers determinsd by Examining ths stora of stbet�d •
"�vsMory Wks, sp�cific daia or parcentile ranks for individusl aaluation ategories. Ths criteris used to assign the w�ttand ratings aro
�ibad in the I�ruoduction. Fo�esch rating s number ot specific guidelines for new devNopment in or ad�xeM to vwtlsnds were prepared.
Che guidelines sre intended to aasist in ce►rying aut King County's Sensitive Areas Ordlnsne�and oU+�►wetlmd policM�. They ers tndudad in
a aeparats repoR titbd"Guidtlines tor King County WeUsnds".
Wetland Ratin� 2
� 3` . �`� _ t � .' � ..... Y;Y��9 .i f.���:r f� i' �'as=
. f'� 1:�Q �-�� ��i� �. � . f -� ' ! Eti
r L ;� • ,:�. , ► � � �+.
� t$•K , �� .`� .� :� ':��e� "�`� -?; 'E�; '� �.ji�•rt � s1�� rry ;y.
� G. e t,� C . ��eyr k�i,,f.=x� � t -
� e , " �-��"xr; :x ++,r�- ! .�; � �, � '-a'C-�+,�`.�+7�ex 1�c .v !�J �y,
4i �' #. �<x-.��.,� ?,� = 1� � '�. � �i � �t n $`a �.�.
� r> - ..w��. S � ._ � . ''y� �
.�x �'�.�Y '�f W� •� �• �`
_ ._ � ��a c.�,r, �,. Ya � '�: .L +r'�',�iSa � .'�.• •'f3 -w .
e p ,''.++. � 3 �. ' , ' i�A � '�':.. b''�-��' �':-1-`�`' �a „ i��R. $i!- ..�� �
' .'• � .�'���`h � � +:\ y Tf I .3� i�W'� M'„� . �":
�- ���! F _,. � �d` �• J V� - `:� �'� � a:� .��^ h,
�,�P �3
"��":✓"�p� x� :�`}• _ -- �� ...:f" �`,'t ? , � ��t +�� •. �'�� !"��n�
�_ :.,.�,��� r i ' -',. � _ r.� ? : �`i�� '� �-. *: !�
.t_ ,F. � , y '� t. . . . �� ,Y_s��.�:�,r � ��e«,' �i�.
� . . - - , . � �� -.�
�a ����-�rr : , . ? . _ . _ . _���r �. ;..'�:�.+ ;_,� - -
'`:�; "'� a=r. ; .t' ' , , �"' •�r�o�s ��` �1�r� e . r.
''-�(�.���+'1_ � �.` _ �_ .. ; ! . . ,.�` _- : r�,s�� ,•�„' ..;r� r"�'�'� a �
�-��a•T�. 1, e s r."i .� �[ � v�,y,- _'... yy �,;
"+z� �Y ` ;, '�, _. ' .F •_�i � �� � . .
<R� . t � y, • 'Jr .• � '�Y',i � � �i�.! . 1' .�.
/. � J , y.e `' '„� - -.o�- ��. ' " '• r � ,�a _ -
� . •�I 1'�.. .. 'F .. - .. . � .� . .., . � � _
' . r ��'-� . . . . ., . . . , � `�.. �
- . .. . . ' ... .. , v ... ... . ' _ '. . . � : '
-�/� ,a�[x . s . .. ' . ... . ... ' � ` ' � �
.a�' �i a . . � y ��-
y:�} } .�' . . _ . - . � . � - • �'�
�� r :
.d�i' 'S..:�- _: . . . ' - . . - _ , . .. _ � . , l "z,:. J:...
-i + � 4 i < . - 9".:'
�r�, - � . _ ��i
f.�;u f. :.-...s --- . � � . _ . _ . . . � Z`�` t.,,
:?,"��,:.�cs.,c: � . , , .r
� D � �' . " � � . . . ,� ' ' .. r� � S '�, � 3 � :
r
�;:�--' , . . <� � ''�� �``�t� �
� � . -,+ fiy. �,,�� _. 'a
� ' 4���y��� ,,y � �`��
� Y ' . , .. . _ .J �. Y F�? �.: _ , 'l S9 F.. �
j _, �� . � . ' � ' " .. a -.i: . »�,�,.;� _..�T�"`i';1 t� ..` � �� �.if�.i�
�� aVy= . - .9 +!d
-�.. �"i'�-1��: _ . .. - - . .� .�wrt'+�w��+ �w��C'!a.
' . . . . . .. '. . i ' . � • '�,, _ � , , . '� _ ,
, � . :•1 ll
� �. - -
�
• • •_ -
�
� �
\ • � � r: . �
I ' - a - - � : a. r � - - � - �
- � i - r � f - � i
' - r � •. . � �
- -� / - • • ' • � '
�� r -
�
e
May Creek 1 S
QBSERVED SPECIES: I�to list ln Appendix 1) �-.
- Tnes: AR, FL, TS, 1"P
Fi�rbs: SN, LA, OS, PV, RR, TL, VS
Sh�ubs: PC, AC, CS, MD, RP, RS, SX, SD
Sed�s/Rush�s,/Gna/�rn: AF, SX, CX,' DA, J£, LM, PA, SF
ei�d� G8, GH, MA, YS, BS, AR, ST, SS, Gf
Msmnalx DE, RA
Fi�h:
Osl�:
RARE/ENDANGEAED/THREATENED SPECIES: (refar�o list in Append'uc 2)
R�ord�d/Obrsnr� .
Pobrrti�i:
SIGNIFICANT HABITAT FEATURE�
OUTLET: Typ�: Overland, Undefined
Conditione Par�ially Blocked -
Outf[ow�x Stream
POTENTIAL STORAGE: Existin�ActMr. 0 ac. ft. -
Po�d,i Aetn►r. 0 ac, ft.
GENERAL OBSERVATIONS:
VETLAND EVALUATION SUMMARY: -�
Dats wat colleet�d In the fFve eatepo►i�s�hown below. Within e�df a�egory tM dsts vws evaluaMd to produa numasieN v�kra. Cwnposite
valu�s tor saeh cstpory wero"produeed in�o�dar to canp�re��aeh wttland to othK vwtland�in in su�bssin snd in Kiny County. The rewlt of
thst comparison was s ptre�ntile ronlc. The peraMiN is exp►es�ed on s axl�of a�e hwxlrtd and indicrtes the peres�t of wetland�thaR aoored
equd to or b�bw thst particulsr sft�. For exampb,a percentile rank of 80 undtr subfiain me�ns thot tho w�tland ioDnd squN to or bett�r
than 8p percent ot all sitas within th�wb-6asin for thst e�rdoation cetepory.NOTE: Ths percentitt ranks an vdid o�ly within the indHidusi
ev�luatian ategory snd ars intended sdeiy for refNena ard eompsriwn.
Rsnk
Ersh�ation Gtegcxy . 1bY PKp�)
�h-b�tM Ca�My-widt
Hydroloy�/: runoff storspe potsiKial,waner quslitY.Pot�ntial for ma�im�ing dernspr 28 68
in downstram areas • .
Biolo�y: qi+a�ity of habitat,abundana aed�wnity af P�arrc�nd animai speGia 85 $2
Vif11a1: dhrortity and contrast of wetland and wrroundingwystation, 85 72
surroundng landforms
Culturai: types ot aoass.v�oximity to achodslinstiwtions,owrsll I00 98
envirorrnerrtaf QualitY
ECOflomic: pnsence of�yriaritunlpat exuaction,ana�dramous or grne fith, 92 3I
gams birds or msrxnals of eamme�cisl valw
WETLAND RATING:
. Eaeb wetlsnd vws aai�sd ort�of thres pouible wettand rating�. The wttland racirr9t wen deurmined by mcamininp tf►s soora of stl�et�d '
°mrentory. ts�ks, speqfie dsts or pemntil� ranks fw individual avalustion cst�goriss. Th� criterp uaW to aai�n tM vwtland rstinyt an
'uaibed in the Introduction. For esM rstiny a rnimber of speciFc guidslinK fw nsw davelapm�nt in or sdjsaot to wetlsnds we�pnpsre�i �
�rt►s guidNiny an intand�d to suist in carrying wt Kiny Caunt�Is Senatiw ArMs Ordinanes snd otMr w�tland polkks. TMy w induded in .
s�rn rspoR titltd"Guidsli+�s for Ki►►p County Wetbndt".
� W�tland Ratin� 2
�
� �
� ^
1�1 V�
�
�
�
�
� �
�
w V�
�
� �
F� �
� �
W �
� W
W w
�-�-- - -- � p � .
g�� � t!`p�°v�,, !1 71 �a tlSq�J � I�71b 3�SF ? ��.18713R 39 0.?.I N e- 1-51 t ' � 1���F �
' 0. 6 . J tO.OJ 60.OJ {0.
,�`�o ✓ H �.y��� �' ,.�� yQ'�,o f067+ t i p� ps1S, �
���0e+,� 44990 ��i ��.�: ��.n . �'• ` �S 0060 ' y .,ti ���� 3�� �ss ��+ �
�
6QA.�• ,� �.K J�NE STH P�. i . '
. �_
� I 1 . b b �`' �``' w`' �`' b �"�
. � ��' b�� ti�O,O hb\ �0� '�, �� �n �
:i . /} � 1 s v .�p p • y �y��O ti O y O b
�yy,� .�m � �i Ap 1 1 ze'� ., �1 ... ���y� 'd`'T � �� Tsl 4� tieAA `j��e� � i �S� �
�'��o �,p `�, 4 I��� ,R4� 1 1 ��01� : >wo`O� d o y7?��0 SI � tl � � �t� ��� ti�
. � � o �vq o �o 0 o I d �ceo sr � e aaze sr �s�a sr ec+a sr' e610 SF +
° �so�� o` s�n� a SJ7l� � o�+iG3� �a4i1 snc� ,_ e pwp u�o sr �tn sr � � �� ?
� � � � I L_ � =� � � � � �
NE arH sT
Renton - � _ �
, , -
� � �� � �
.
� � ,��-�� ,�� /
9� � � _` � , - �
. ./
---------------------------------- ,p�,� � � o��os,\�� .:
�
_^-----�-----IATA------'--�---�--'^ y
'----�---------'-
��p���.--9000$------------o --------��---��A"-------- �--�---------------s
�� ,���, � wn �
, o
p � Netlond i i e
�oe tiO�R � �7t2l1 ' � o
o�,b 1./! AC � �
�4°, NSi01� �,`
�/ 1.l2 �C
�18 � � TOIAI eJ/21� �
� r/
I �
e e►c Nse-2t-ts� ae�.ce
i . s ��
a
yey
\04�, e .
3.73 AC
�
1211.]2
� ,
:�
0
i Pp
j b
; ' u
��, �
; u
�
.'Oy <
��qo� ' s
�: C
: L
: �
+ •
; l
3lA91A� .' �
i.
{.1S AC
�� �
s �� ' A Ss � ssa r� '.S �
�
1 'H ST ttis.�t
nn.,. 111IIIIIIN[II/J1L11• .�, _..
- -
I - -- - --- - F �-
� / �'�
���� � �
('ARPORATE tf�A� �
- cn:c mnm/.
us��rwrwnrm w.�i
i
9
10
8 . .
1
j { �
�
F
�
�� �Nr 51161 SOU 4'�
WYM sM��
____ /
�
�d"iw � Y
�„�„ i �
� -
� , = 2
� ¢ 1
,����' � o s ��.�, ,
zY
�..g�_�� �
� zwu x -�
� � i
� � � I
,,,,�,..�,.,
N
r
�
NOI[:MI1f A�E/1 flq'YYM ON TNIS M141 6 IOCAilD J
WIfIMN TOWN3IW»MOfT1,fANGE S FAST. I �
� � �O
I ]Mo HatE s0in onM
fillE(t
�7 � ��E�
��� �
90111�NS� � y1N"
CCI'Y OF RENI'ON '
530088 � s� .a �
i s���
. �
.
� f1TY OF RENTON
�GH A(�S
F
� Z FEMA Ma
o �
s =
•� �.
<r�'ra�wa�N�`'
? j 33t K 1 t t � 5 s e x6* s• x -
t 1�� j� � � � � � � �� � t�� � !� �t � ����_. 3 � ;
� �� ��5 ��� �� �� �';� # � � ���t ����t �� ���� �g ��� ��� � � ��; �����t�; � � � � � � �
� � � a� �}'� !�j �1 ��� ���i; � } � � �;;i W��3� � J �� %�� .� a $F '��• i;�� � f � �a �! "� z
Z i � : a�,� �j� j� ��� ����§ � � r � � � � � �������� �� ��� � � � ± ��� jg��q;�� i� i � 5 a rt �� 1� �
u��� i ��� �;�� s�� �� ��� �$����r y;� �� � �; ��� � � � �����������#a j ���� n:�� i�#� ;8 F � �a � � _ �t! i �� ��Q �i ��
J �� : > r ` S. j. e � a � o � a� �ia � 8 �'� �. �L�9�� !p 1 �� �a � E� g
! t f ! ! t Ia ��i'! � � � �� ��iF �� � 3� � � a3 �) �
�is s � e � � a � ;a o� 2 �� I ( ` fi x 4 � � �z�.� � °� a ° 1� ��� ti � � � �
� � l�
I � �� �� a ����#i i����� -• �� �
� ¢ � Q �� ��
_� �� � ��{�g � I �. � ���e��-�l-�8 ��fi�#��!#��� .•�-�f----._ ._..--- �a ----
� � v�i � �I �� �� �i' .
� �� � �I e, �� ��
� �' zA � �I �� ��
w
H
� g 3e 8�� �� @T .
� a � z`� �� =I §�g I
�a. � �x 3 z �� ��I d-:
EXHIBIT H
USDA Soils Map
•• AgD • • � 1� r`p,•, `� . �, gp •M 34 \
, AgC :1 �• � ''. n '� ',; p .
AkF •�••/ /• � � AkF ' �
• �AkF ' A� Ev6 i
� � BeG EvC
i.:'"��� . qgC
GR�IVEL �
PY Pir '
' AkF �� •. 7 3p6 A� � .
i
- ------ --�`- t- e� -- -t �-'' ----�---- -- -- - �
�i9 ' , "x--
� ^ � • Ev8 � ��
• M 8M�1] �,'�
• •8M 90� •,• r " �� .
u u ��� ,,� AgD �
�� . E�� q p _ AgC �
..i • � . � �, � AkF ,', e'j, - •.
, � � AmC • \
. , r- �_ \� ' ' �I• AgC `• .
� Sm•• �; r ----' r . � I�
InC ' � i L
' M i agp; •S � EvC•
;.+ ''� • �.
. �4�� �`��:• i .AF;C�
{, :. �� - . t:
. •�� ;� � �..Sm•
� Ur j �J j �� I ;o
� L !� I AmC• � � ' �, SITE �J•' f •
�• �e � . �_ .--� .� j. R�rv ii. � Ra -•--- -- [p' � Trailer.
♦ i,�•� � r � BM 't �� BM
_ . ,'_' , J� ,, I � -- - - - •' y.-- - --•-'-'•s�
I'r-` :' Ih• ., _ qp(' •�k :
t� •� . � a ��
',f,.+c �•2• 4".Cjci��{� _!/ ' �--1( � � � __�L •„,. �� 1 . . �
`� I _ — -- -. _
./� - �- •, . ��"/. � --i i�i ,-. . . U _ ,\
�i i� , �rrr ' ' � �� -------,, .... . • • pg±� \
} �•� ';-- ---- ��•,I :�4� li Y �^` �' .���'? ��_• ' �• � ,�� . \\`..
�.f._ ,�: .._ :�,;. � , ; ���___-_ � . . �: �
' �, �:. ...'• •• � ` �' AmC � ' S C <
��. ��$i8hlan ,�,vi i 1�� � >
':, i 9i;� g� � � �;.
- .� •i f �c ,� 1:,i�' . t ° .
,t;' P �# �At� ��•'� '• C• ' �;�
g �:..:.. •�_: : ,'L _�e::� •9 �a�s '� • �i: . .gr;t
• p�4 `;'` i••:•J.��• ��. " � , f
y�� ' � � � � 1 � j ` .
AgC �'+:�•� _J f� , AgB
�•. _ � �,,� ' . . � . .. .• pa6= =
I� .. •� '�• i�C� I_ ��`,�`..% An ' . . . ° � �� "• .a= a=== _,`: � .
�� ro f•,.+'��~ ,` ��^ ' �`� � . ' TrailRr . . ii: n.EvB M.
3M ' � j �w■ ■ � � arh�. ' ii j M'� .8 'nB.
9- _� p �� , , ii 3 .. 424
�• 1I � L./ 4,n t 7 .' , q_' , 'ii • . ... .. .
Greenwood CB '� .
EvD,� ( w t_� :, ,�_•j! •�, .
� r • ��
Akf� � i• ; .,� _ •
1 � � � ° � F'�C •L �
� I .�:aasas� � . .w..
I �� � ' � r. • �r:
•fAt OII i EvC �!� � � N ,. •406 =
� 1 � Cem i �� % pa �p Ari d � \ •�� ' :
•PIT �o ! y i'♦. �
' �� ____ �GFAVEL i r � "[ � . . .
C ! F�;��, M c °y . _•, .
� , 3=°� �',g321;' .°+ � � � .,15� :t .v..=...
� • • a r(� . a e •
'�Rh• �/ '�� : a w p ���••,.H . t 1
��.' Akf �`�� EvC � IAkF "�~ -P�G• •• � = I�.
� + •;�� ����i
` �'� \,i i I .!'- -- - J�'czr��' +•».� � ..i� ./c.
` Ur � ` 1 U , P ��`� w'�• � / / w•., ,3 ` .
Y , I AkF • ..
AkF t � � �'� ;�
�HA` ' . -. 8M ,i 9 37E
¢ � S InC ------' , \ \ _ :�.- _•�l �.0 Fvi-.
� � � . 1 /H.
m � ? Soils Ma
z =
e�t��,U�+ p+.
r�h�tN61M�'!.
TAB�E 3.--ENGINEERING
G1n asterisk in the first column indicates that at least one mapping unit in this series is made up of two or
this reason it is necessary to follow carefully the instructions for referring
Suitability as source of-- Soil features adversely affecting--
Soil series
and
map symbols Topsail Road fill Highw�y location Dikes and levees
1 *Alderwood: AgB, AgC, Poor: �avel�y------ Fair: 2b to 40 Slope range is 0 to Low compressibility;
��� qgD, AkF, inches deep over 70 percent; water pervious when com-
For Kitsap part consolidated till. moves on top of pacted; piping
of AkF, see substratum in hazard; consolidated
Kitsap series. winter; consoli- till at a depth of
dated till at a 24 to 40 inches.
depth of 24 to 40
inches.
Arents, Alderwood Poor: gravelly------ Fair: 24 to 40 Slope rarige is 0 to Low caanpressibility;
. material: AmB, inches deep over 15 percent; water pervious when com-
AmC, consolidated till. moves on top of pacted; piping
substratum in hazard; consolidated
vinter; consoli- till at a depth of
dated ti11 at a 24 to 40 inches.
depth of 24 to 40
inches.
Arents, Everett Poor: very gravelly- ood----------------- Features generally Lrn+ c�pressibility;
material: An. favorable. perviovs when com-
pacted; piping
hazard.
Beausite: BeC, BeD, Poor: gravelly------ air: bedrock at a Slope range is 6 to ow compressibility;
BeF. depth oP 20 to 40 75 percent; frac- pervious when com-
inches. tured sandstone pacted; piping
bedrock at 20 to 40 hazard; sandstone
inches. bedrock at a depth
of 20 to �:0 inches.
Bellingham: Bh------ Fair: silty clay oor: poorly Seasonal water table oderate shrink-swell
loam at 14 inches. drained; A-6 and at or near surface; pctential.
A-7. high frost-action
potential; moderate
shrink-sr+ell
potential.
Briscot: Br--------- Good---------------- Fair: somewhat Seasonal water table Piping hazard---------
poorly drained; at a depth of 1 to
A-4. 2 feet; high frost-
action potential;
flood hazard.
Buckley: Bu-------- Fair: gravelly below Poor: poorly Seasonal water table Featiires generally
.a depth of 10 to 14 drained. at or near surface; favurable.
inches, high frost-action
potential.
Coastal beaches: Cb- Poor: gravel or Variable------------- (1�)----------------- Low compressibility;
sand. pervfous when com-
�.J , pacted; piping
hazar3.
See footnote at end of table.
44
INTERPRETATIONS
more kinds of soil. The soils in such mapping units may have different properties and limitations, and for
to other series that appear in the first colwnn of this table]
Soil features adversely affecting--Continued
Farm ponds
Drainage Irrigation Grassed waterw�ys
Reservoir areas Embankments
Slope range is 0 to Lorr compressibility; Very s1oW permeabil- Low available water Slope range is 0 to 70
70 percent; moder- perviaus when com- ity below a depth capacity; consoli- percent; low avail-
ately rapid permea- pacted; piping of 24 to 40 inches: dated till at a able water capacity;
bility to a depth hazard; consoli- slope range is 0 to depth of 24 to k0 slight to very
of 24 to 40 inches; dated till at a 70 percent; water inches; slope severe erosion
consolidated till depth of 24 to 40 moves on top of range is 0 to 7� hazard.
at a depth of 24 to inches. subatratum in percent.
40 inches. winter.
Slope range is 0 to Lox coanpressibility; Very slow permeabil- Low available r+ater Slope range is 0 to 15
15 percent; moder- pervious when com- ity below a depth capacity; consoli- percent; low avail-
ately rapid permea- pacted; piping of 24 to 40 inches; dated till at a able water capacity;
bility to a depth hazard; consoli- water moves on top depth of 24 to 40 slight to severe
of 24 to 40 inches; dated till at a of substratum inches; slope erosion ha.zard.
consolidated till depth of 24 to 40 during winter; slo range is 0 to 15
at a depth of 24 to inches. range is 0 to 15 percent.
40 inches. percent.
Rapid permeability--- Low compressibility; (1�}----------------- Low available xater Low available water
pervious when capscity. capacity.
compacted; piping
haaard.
Slope range is 6 to I,ow compressibility; (1�)----------------- Low available water Slope range is 6 t o
i percent; moder- pervious when com- capacity; slope 75 percent; 1ow
�tely rapid permea- pacted; piping range is 6 to 75 available water
bility; fractured hazard; fractured percent. capacity; moderate
sandstone bedrock sandstone bedrock to very severe
at 20 to 40 inches. at a depth of 20 erosion hazard.
to 40 inches.
Seasonal high water Moderate shrink- Slow permeability; Poorly drained------ Poorly drained.
table at or near swell potential. seasonal water
surface. table at or near
the surface.
Seasonal high xater Piping hazard------ Seasonal xater table Somewhat poorly Somewhat poor�y
table at a depth at a depth of 1 to drained; Plood drained; fl�od
of 1 to 2 feet. 2 feet; unstable hazard. hazard. ,
ditch banks; Plood
hazerd.
Seasonal Water table Featur� generally Seasonal water table Poorly drained----- Poorly drained.
at or near surYace. favorable. at or near surface;
slowly permeable;
outlet problem in
some areas.
(?/)---------------- (il)--------------- (il)---------------- (J}--------------- (�).
45
3.2.2 KCRTS/RUNOFF FILES METHOD—CENERATING T1ME SERIES
�
TABLE 31..Z.B EQUIVALENCE BETWEEN SCS SOII.TYPES AND KCRTS'SOIL TYPES I
�� SCS Sal Type SCS KCRTS Soil Notes I
Hydrologic Group I
Soil Group
.� Alderwood(AgB,AgC,AgD) C Till
Arents,Alderwood Material (Am6,AmC) C Tili
Arents, Everett Materiai(An) B Outwash 1
Beausite(BeC, BeO, Be� C Tiil 2
Bellingham(Bh) D Till 3
Briscot(Br) D Till 3
Buckley(Bu) D Tilt 4
Eartmont(Ea) D Tili 3
Edgewick(Ed) C Till 3
Everett(EvB, EvC, EvD, EwC) A/B Outwash 1
Indianola(InC, InA, InD) A Outwash 1
Kitsap (Kp6, KpC,K D) C Till
Klaus(KsC) C Outwash 1
Neilton (NeC) A Outwash 1
Newberg(Ng) B Ti(i 3
Nooksack(Nk) C Till 3
Norma(No) D Till 3
Orcas (Or) D Wetland
Oridia(Os) D Till 3
Ovalf(OvC,OvD,OvF) C Till 2
'� Pilchuck(Pc) C Till 3 �
Puget(Pu) D Till 3
Puyaltup(Py) B Till 3
Ragnar(RaC, RaD, RaC, RaE) B Outwash 1
Renton(Re) D Till 3
Salal (Sa) C Till 3
Sammamish (Sh) D Till 3
Seattle(Sk) D Wetland
Shalcar(Sm) D Till � 3
Si(Sn) � C Till 3
Snohomish(So, Sr) D Till 3
Sultan (Su) C Till 3
Tukwila(Tu) D Till 3
Woodinville(Wo) D Till 3
Notes:
1. Where ouiwash soils are saturated or unde�lain at shatlow depih (<5 feet) by glacial till,they should
be treated as till soils.
2. These are bedrock soils,but calibra6on of HSPF by King County DNR shows bedrock soils to have
similar hydrologic response to till sals.
3. These are alluvial soils,some of which are undertain by glacial till or have a seasonalty high water
table. ln the absence of detailed study,these soils should be treated as 611 soils. .
4. Budcley soils are formed on the low-permeabiliry Osceola mudflow. Hydrologic response is
assumed to be simitar to that of till soils.
1998 Surface Water Design Manual 9/1/98
3-25
-�
EXHIBIT I
Sensitive Areas Folios
Sensitive Areas Ma
�-1-Ji � �NE11TH•ST�u'�SO t L y�(150Us� lr,� ����?-9� 9i07 � �
NE�11:TH ST -9i?,?"'�i -_--� �• -t � ,-�-Nt 11:(:H�ST �
81I5 �9195�l E�00�0 T+'-} y�j,0�iB0i j " �s' ` - . � -:� '� 9138 ,, 9i2� 1
-�-NE,1aTit F�L.____ � -'j��i�- Q��o� ozoor����` � Z i 9202 -- -
i,--: ?.-�-rtJafO ��- s� �.0270 ., \ g�33. 9333 �
� �� � � .
235- 02i5 Oi10 0330 03�4�--_ '� �D f f -j� , , y� . w�W�
�9099 NE_1UTH G:T� ��--' <. T�����..`t��E 10T}i•f�L�.�_`t v? zl ' �
9J75 �----�'O ��T-*-r- G390 03�f m is,.�n r 1 r 0390 �� y ,w� =� : � 9:
1 9238f 9;2a'0'--�- '� -n /� 062f1�`43B0 0320 i r--` 9�79 Q� +ti' �
-rG~���L 229 Oi20�ts� ���r i Otb�� OI50 � _�__„ Q,
_J���', �NE 1 7:ti_LN Jt?- 92¢s. �'`_`_'n�_.. .. . ..N�1UI13 Sl __�p 9�5s �i SEi1-
--�. 9Ai� 9163 � v, H— � t�TH:S( �dL_1
r�l �a� ,� 0~ 92;B 9250— 9252 9232 92t5_ � QE�9299 �c-, 9i0B `Z' 1- '
' ��;y: �_ � 9z�i-1' -- a( �--, , �. 5 �'022o g�
Ne:,�oTt�=s7���-� � ' � , �zos,. � , Q���s � 9�����
- �— NE 91 f1-�7-9?li � 930? 97ii�' C3{ 0311� `.929�i
� r:t n?5ii a285 i r l � ' 928ti t
' � � r77 m 0�40 ;N�9 i N i?L � �� 9074 i�- � Oi40 9��_
--��--N�-y?.H:ST4w _._� L T� �; ' t---",�, '��NE 9TH�PL•��- 9»9� ; -r, �
4D�? - ---9tt0! a O.i80�+
� oP55� 77f ��' . 9243 t 4ifa
__,g,»� � � G � SITE IE9TN�s7 ����_.__��I„�?
:0275� � N�9 j��9� . r
94t6 f I� I = TH. ,t 90?5 Q 4078 �f ! �uJ,�u!C;
4165'3? t 'I F ' :C.r=1�--j Z_`.--- ,� 9iQ6 0?50 S 00)0! v?'1
. . ' .:i;��- w � LL1
�26b+ r' �� ��02T5 0 i0 y � _ � i�1-,Tt:p� >�-
J 0�55,' �.�-�-�`�, 0�5D, �'
C
°ovs��r�L,bTFf3sT_� � I �� Em snoT � �� i �'ooso a�-
m � ;
� � �Z35i�m A f . � �' €` �*�-'O�iilO t='
� D??5 � � 9.1�5 '`-L--- � _FdE�:biH_S.T r -q-'� �'� �� ��
� � i1 �
--� �?�3�Ora3��pa65�, , ( O�Ob—�z E,.,1�CT-4t293f IO a.� a ��- �_ � lx�i-� ,�C �-.:.
hl � � rr�-�-r`"��_
W'2U E t i 1 �;fJ-fli85 _"-t� W�-'{%r��,;9324 , 6�.-;._;�--r _ NL_f T N�PL.�-'-.i-C..�02s0i } F ' �szos
�. ,-r-S� •.U365� � E---. Z7 i �, �
_r��=r:1►�_s�—Luo�:�L ��;� ��,� r�`�`.� -}-� ; :�r, ,+�'" 1 --t r_ ���` ,11`i
� �( rt��.a }� 4325 4d3i r 1;�50
�{ oj2o z...r.� =''l `t�C 7.7:H_�l- � �osro; oaao wav/ ti- f s� SE 12i`
F-�� Ut� � 7' f-7- ,--*- �n t p'gzp'� '� ' fi�
+, �0 , -r Oi7S b925 Qi35 y t"� `.; O 04d G4251`'F:7_T��'TY- � t'T+IE� 71H�51 ' 0.20:. -�.-,� U 2 3 t l i(
_l/085-c-t-�� � � d130 < `'1 � i' U465-{--�-1 'Y"1' USTb j i { OSfO,� /�'' ' 4 �
0094 t�.�- f^ .�t � � I16d0 t1610� i ��"��i i •,� 4�f10 `91t6
! � ��0 0 7 5 `_, y z I r..� r--S I �--!`d F f i`{r,r'�g U 0 4 G 0� J 4�! '- f�-- . � � r� ,
{-1 : .�4' �� ��.__ t- r�; 0{75 _, I r ( 0290 1� y '{M7D ;[7d37 't �
Tj r � t ;'���D�f95}i �� I C-� ( -'' i� - � . i� �;� CiZ f1 Q�- i:•
� I I t�.'� ��,��.� i ,fm�Q3�i r'�E f,r}{-Fi- Jv95 � %',— , ` � �'}
�_� oz�s,�Ne Er�i P'�=-- - [m asis�rio;-:-. �r �s� i , i �x,� ; , �� ;_ �o
� �-� �, a6so o5so' ��.
_ - �.._
_ 265 fM15 439K D3T5 0325 k-'4650f;05{•`'�4t44 � ''� � •E G�N C'} � �;'I
!+ i :` f1355�A�(35�DtS�N€fiTti.ST..._ �_3_�4_0 1�_G6�JLA`-"�f5�SEp 9�R2 9236 F--I J�rJ��'��ji � `i'l ;'
(Cj20DfiKa�gCount � �,9�036� ' ` M477d�'. 4 0 5 F 4t39`-'-'-�LL�" y' d.
� y!�� , ' ��` � �r i r-�-- `��+] / .
f 1 I��� t;� ../'�'��{N � � :.�� Q li IC7i1_.._�__�
Legend
�/ Se�ectea�eswres �/ c�m�z a�anx �„,,.�,
. - """ ��,
� � CountyBourufary � C=�:<"iy-ncr�d ���rY�Y_•>t�rd.:•a.u:y.
X Mountain Peaks �yf cr�s�
� Thorr�a Bnothets Mlap Page .,• unn�:�ai
S1raBts . Lakes and Lange R�ve�s
� ►i,s�aj �y/ Streartrs
f''",
�>;
' a�a;xfs � 5A0 Landslirde
,^:•' �+ � SAO Coat Nime
� Peroeis � 5A0 3ei�ic
I�arporated Area SAO EPosion
SRO SUeam LandsGde Hazerds
� Cwss t cau7u
{omp
iMormation included on itds map has been compiled by KMg Counry staf(irom e variety of sources and�subjed to change without notice.King C
kes ta rapreseMetions or watta�Nies,express or knpNed,as to accuracy,completenees,timeliness,a tk,�his to the uee of such Nitamation.Fqng Cc
Y not be liable for any general,spedat,indirect,M�Cidental,or consequential dameges k►duding,but not tlmited to,lost revenues or fost proflts resuU
e use or rtdsuse ot tho ir�tormaUon containod on this map.Any sale of tt►is rr�p a infom►eUai on this mep is protdbfted except by wrriten permission c
ounty.
ate:6-27-2006 Source:Ki Count IMAP-Sensiave Areas htt Jlwww.metrokc. v/GISCMAP
4 �Havs�
m ? ensitive Area Ma
o �
z � _
�`< p�,
T�hQ tNa�N��
EXHIBIT J
Drainage Complaints
NONE NOTED
PER CITY OF RENTON
4.0 RETENTION/DETENTION
ANALYSIS AND DESIGN
4.0 RETENTION/DETENTION ANALYSIS AND DESIGN
As mentioned previously, flow control is not a requirement for this project site as the two
exemptions allowed for not providing flow control are both met with this project such that the
100-year peak runoff rate differs from the existing and proposed conditions by less than 0.5 cfs,
and there is less than 5,000 square feet of new impervious surface being added with this
development. Please refer to the calculations on the following pages of this report that delineate
the areas of proposed surfaces, as well as existing surfaces, and, also, the calculations for the
100-year peak runoff rates from existing conditions to proposed conditions.
A. Existing Site Hydrology
The existing site is mostly developed but does consist of approximately 0.292 acre of
grass area with trees and landscaping. Under developed conditions, there will be
0.22 acre of grass and treed areas with landscaping. There is also an existing gravel
driveway that serves the existing single-family residence located in the western portion of
the project site. Most of this gravel driveway will be demolished with this development.
The existing gravel driveway extends onto Lot 2 of this project and will be removed with
the development of Lot 2. The site tends to slope in a west-to-east direction at an
approximate grade of t2 percent.
B. Developed Site Hydrology
Under developed conditions the total impervious surface from the new driveway, the
existing house and garage, and the proposed house will total approximately 0.20 acre. It
is assumed there will be a sma11 amount of gravel from the existing gravel driveway that
will remain under developed conditions to serve as access from the new driveway to the
existing garage, approximately 0.02 acre. For purposes of sizing the basin summaries for
pre-developed and developed conditions, the total project site area that was included i❑
the calculations was 0.44 acre.
For the purposes of sizing the calculations for the basin summaries to determine flow
rates for each given storm event:
Precipitation Rate
Storm Event (inches)
6-Month 1.28
2-Year 2
10-Year 2.91
25-Year 3.44
100-Year 3.90
C. Hydrologic Analysis
The Santa Bazbara Urban Hydrograph methodology was the chosen method for sizing the
peak runoff rates from this project site, which is consistent with the 1990 KCSWDM,
utilizing the StormShed 2G program, as developed by Ingenious Systems, Inc., and is
widely used in the Puget Sound area for this purpose.
11996.009.doc[]PJ/tepJ
D. Retention/Detention System
As mentioned previously, no retention or detention system is proposed for this
development as the thresholds for exemptions are both met.
1199G.009.doc(JP]/tep]
DETENTION SIZING CRITERIA
Predeveloped
impervious = 3,228 sq. ft. = 0.074 ac.
gravel = 3,198 sq. ft. = 0.073 ac.
grass = 12.710 scLft. = 0.292 ac.
19,136 sq. ft.
Developed
new driveway = 3,440 sq.ft.
existing house and garage = 2,868 sq.ft. 0.20 ac.
new house = 2,400 sq.ft.
gravel = 884 sq. ft. = 0.02 ac.
grass = 9,544 sq. ft. = 0.22 ac.
11996.009.doc (JPUtepl
Appended on: 17:07:23 Wednesday,June 28,2006
11996dev Event Summary
Event Peak Q (cfs);Peak T (hrs);�yd Vol (acft);Area (ac): Method Raintype
, 6 month 0.0602 ;�8.00 i 0.0246 0.4400 ; SBUH ; TYPEIA
2 year 0.1212 8.00 � 0.0465 ; 0.4400 � SBUH , TYPElA
� 10 yeaz; 0.2051 ° 8.00 � 0.0765 ; 0.4400 SBUH ; TYPElA
` 25 year;, 0.2556 : 8.00 0.0946 0.4400 ,. SBUH ` TYPEIA
100 year; 0.3001 8.00 ; 0.1105 ; 0.4400 ; SBUH TYPEIA;
Record Id: 11996dev
Design Method SBUH Rainfall type '�TYPElA
--- -
Hyd Intv ' 10.00 min , Peaking Factor ; 484.00
-
Abstraction Coeff 0.20
;Pervious Area ;� 0.22 ac DCIA ,� 0.22 ac
;Pervious CN 86.00 DC CN 97.18
`Pervious TC 11.34 min DC TC 11.34 min
Pervious CN Calc
Description SubArea Sub cn :
' Open spaces, lawns,parks {>75% grass) � 0.22 ac� 86.00 �;
Pervious Composited CN(AMC 2) 86.00 `,_
Pervious TC Calc
Type ' Description Length Slope Coeff ' Misc ; TT
.Fixed 11.34 min
Pervious TC 11.34 min
Directly Connected CN Calc
_ _
� Description SubArea Sub cn '�
Gravel Roads &Parking Lots � 0.02 ac ` 89.00
Impervious surfaces(pavements, roofs, etc) � 0.20 ac 98.00
DC Composited CN (AMC 2) 97.18
Directly Connected TC Calc
: Tvne ' Descrintion Length Slooe ' Coeff Misc ' TT
—�
,, : . �-
',;Fixed � ; : 11.34 min ;
Directly Connected TC 11.34min
Licensed to: Barghausen Engineers
Appended on: 17:07:37 Wednesday,June 28,2006
11996pre Event Summary
; Event ' Peak Q (cfs) Peak T (hrs) Hyd Vol{acft) Area (ac); Method,Raintype'
, 6 month'; 0.0350 � 8.00 0.0173 0.4390 SBUH : TYPEIA
2 year 0.0912 �8.00 ; 0.0373 ' 0.4390 ; SBUH : TYPEIA
' 10 yeaz' 0.1732 8.00 ` 0.0657 ` 0.4390 SBUH ' TYPE1 A
25 year 0.2237 '�8.00 0.0832 ; 0.4390 SBUH TYPElA
100 year�.2684 8.00 0.0987 0.4390 SBUH � TYPEIA
Record Id: 11996pre
Design Method SBUH Rainfall type TYPElA
'Hyd Intv ; 10.00 min Peaking Factor 484.00
�- Abstraction Coeff 0.20
Pervious Area 0.29 ac DCIA 0.15 ac
Pervious CN 86.00 DC CN 93.53
Pervious TC 11.34 min DC TC 11.34 min
Pervious CN Calc
Description SubArea Sub cn
Open spaces, lawns,parks(>75% grass) 0.29 ac 86.00
Pervious Composited CN (AMC 2) 86.00
Pervious TC Calc
I T Descri tion : Len h Slo Coeff� Misc TT
YPe' P �I Pe;���
Sheet'� Short prairie grass and lawns.: 0.15 '; 100.00 ft' 2.50%' 0.1500;2.00 in; 11.34 min
' Pervious TC ' 11.34 min,
Directly Connected CN Calc
Description ;r SubArea Sub cn
Gravel Roads & Parking Lots 0.07 ac 89.00
Impervious surfaces (pavements, roofs, etc) ;�0.07 ac 98.00
DC Composited CN (AMC 2) 93.53
Directly Connected TC Calc
Tvoe ' Descrintion Length Slone Coeff Misc TT
Fixed �- �- � 11.34 min
Directly Connected TC 11.34min
Licensed to: Barghausen Engineers
_ _ _ -�
5.0 CONVEYANCE SYSTEM ANALYSIS
AND DESIGN
5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN
As mentioned previously, the conveyance system for this project site will be sized based on the
1990 KCSWDM methodology such that the Rational method will be utilized since the project site
is less than 25 acres in size. An initial time of concentration of 6.3 minutes with a 25-year
precipitation of 3.44 inches, and a Manning's "n" value of 0.014 was used to size the conveyance
system for this development and the flow was easily conveyed from the project site and the
upstream contributing area; therefore, this is a conservative method for sizing conveyance
systems and there should be no problem with using the results of this analysis.
11996.009.doc[1PJ/tep)
6.0 SPECIAL REPORTS AND STUDIES
6.0 SPECIAL REPORTS AND STUDIFS
There are no known special reports and studies prepared for this development.
1 i99G.009.doc[JP!ltepl
7.0 BASIN AND COMMUNITY PLAN AREAS
7.0 BASIN AND CONIMUMTY PLAN AREAS
To the best of our knowledge, the project site is not located within a Basin and Community Plan
Area.
1 1996.D09.doc[JPJ/tep]
�
E"�
M�
�
�
W
a
�
w
x
�
0
0
�
8.0 OTHER PERMITS
Other permits for this project site include a Side Sewer Permit, a Water Service Permit, a Grade
and Fill Permit,and a Building Permit,all from the City of Renton.
11996.009.doc[1PJ/tepl
9.0 TEMPORARY EROSION AND
SEDIMENTATION CONTROL
ANALYSIS AND DESIGN
,
9.0 TEMPORARY EROSION AND SEDIMENTATION CONTROL ANALYSIS AND
DESIGN
This project site will concw with all requirements of the 1990 KCSWDM for sizing erosion and
sedimentation control facilities for a development of this size in this portion of King County, as
adopted by the City of Renton. Please refer to the calculations on the following pages of this
report for sizing the erosion control system.
11996.009.doc[lP1/tepl
10.0 BOND QUANTITIES WORKSHEET,
RETENTION/DETENTION FACILITY 5UMMARY
SHEET, AND DECLARATION OF COVENANT
10.0 BOND QUANTITIES WORKSHEET, RETENTION/DETENTION FACILITY
SUMMARY SHEET,AND DECLARATION OF COVENANT
These items will be provided should they be required by the City of Renton; however, since we
are not proposing any retention/detention facility, there will be no easements for those facilities.
At this time, it is not known if a Bond Quantities Worksheet will be required; therefore, this
section is left blank.
1 I996.009.doc[]PJ/tepl
11.0 MAINTENANCE AND
OPERATIONS MANUAL I��
11.0 MAINTENANCE AND OPERATIONS MANUAL
The Maintenance and Operations Manual will be included with the Final TIR submitted with this
development.
�
11996.009.doc[JPI/tep]