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EROSION/SEDIMENTATION
_-,ONTROL PLAN NOTES:
WHERE POSSIBLE. MAINTAIN NATURAL VEGETATION FOR SILTATION CONTROL
ONCE WORK HAS STOPPED IN ANY AREA STRIPPED OF VEGETATION FOk A
PERIOD THAT EXCEEDS 60 DAYS, IT MUST BE STABALIZED WITH GRASS
OTHER EROSION CONTROL TREATMENT SEEDING CAN BE USED BETWEEN THE
MONTHS OF APRIL AND OCTOBER
ALL TEMPORARf EROSION SILTATION AND DETENTION PONDS SHALL HE MAIN-
TAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING
AND/OR CONSTRUCTION IS COMPLETED, AND THE PERMANENT FACILITIES
ARE OPERATIONAL ,
RETURN ALL SILTATION AREAS TO ORIGIONAL GROUND CONDITIONS
WHERE STRAW BALES ARE REQUIRED. RIP -RAP SHALL BE PLACED ON BOTH
SIDES OF BALES FOR EROSION CONTROL
APPROVAL. OF THIS PLAN DOES NOT CONSTITUTE THE APPROVAL OF DESII,N.
SIZE, NOR LOCATION OF PIPES, kESTRICTORS. CHANNELS. OR HETENTIUT:.
BUT IS APPROVAL OF THE TEMPORARY EROSION / SEDIMENTATION CONTROL
PLAN ONLY
THt SILTATION CONTROL SYSTEMS DEPICTED ON THIS PLAN ARE SUCH A:, T,
MEET THE MINIMUM ktGUIRFU1 NTS OF KING COUNTY. WASHINGTON
AS CONSrklICT10N Pk„GRESSES AND EXPECTED (SEASONAL) CONDITION`,
DICTATE. ADLIITIONAI SIL TATION CONTROL FACIL (TIES MAY BE REQUIRt I, I.
INSURE LOMF•l ETE Sit TATION CONT14U1 ON THE PROPOSED PI,AT THE hf o-t,.I
DURING THE COURSE OF CONSTRUCTION IT SHALL BE THE OBLIGATIUN ANL,
RESPONSIBILITY OF THE DEVELOPER TO ADDRESS ANY NEW CON(-HT1<)N,, T►I..'
MAY BE CREATED BY HIS ACTIVITIES AND PROVIDE ADDITIONAL FACILITIES
OVER AND ABOVE MINIMUM REQUIREMENTS AS MAY BE NEEDED TO PROTEL.T
ADJACLNT PROPERTILS
ALL DISTURBED SLOPE AREAS SHALL BE HYDRO -SEEDED GRASS SEEOINL, SHA, I
BE DONE USING AN APPROVED HYDRO -SEEDER, OR AS OTHERWISE APPkUVEI
UY THE KING COUNTY DEPARTMENT OF PUBLIC WORKS THE PFRFORMANCE
BOND SHALL NOT BE RELEASED ONTIL THE GRASS IS ESTABLISHED UNl ESQ
OTHERWISE APPROVED BY THE PUBLIC WORKS DEPARTMENT. HYDRO -SEEN
ING SHALL BE DONE WIEHIN 60 DAYS AFTER THE COMPLETION OF ALL
CONSTRUCTION
THE EROSIOII/SEDIMENTATION CONTROL FACILITY SHALL BE CON-
STRUCTED 1-ItIOR TO ANY EXTENSIVE LAND CtEARING OR GRADING IN ACCOR-
DANCE WITH THE APPROVED PLANS THE FACILITIES MUST BE SATISFACTOR-
LY MAINTAINED UNTIL CONSTRUCTION IS COMPLETED AND THE POTENTIAL
FOR ONSITE EROSION IS PASSED
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EFOS I ON/SEDIMENTATION
.r CONTROL PLAN NOTES=
I WHERE POSSOLE, MAINTAIN NATURAL VEGETATION FOR SILTATION CONTROL,
2. ONCE WORK HAS STOPPED IN ANY AREA STRIPPED OF VEGETATION FOR A
RNATE- ERR ACCESS PERIOD THAT EXCEEDS 60 DAYS, IT MUST BE STABALIZED WITH GRASS Uk
WRITTEN
OT D WITHOUT OTHER EROSION CONTROL TREATMENT SEEDING CAN BE USED BETWEEN THE
/ MONTHS OF APRIL AND OCTOBER.
F R I Ca I -FT
I ALL TEMPORARY EROSION SILTATION AND DETENTION PONDS SHALL BE MAIN-
TAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING
AND/OR CONSTRUCTION IS COMPLETED, AND THE PERMANENT FACILITIES
ARE OPERATIONAL
T� 4, RETURN ALL SILTATION AREAS TO 00GIONAL GROUND CONDITIONS
I S. WHERE STRAW BALES ARE REQUIRED, RIP -RAP SHALL BE PLACED ON BOTH
SIDES OF BALES FOR EROSION CONTROL
6 APPROVAL OF THIS PLAN DOES NOT CONSTITUTE THE APPROVAL OF DESIGN,
4L-• y� �J�i�'+,Y/• �Ni �j�}, �l , H�vl SIZE, NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION,
O� t
- BUT IS APPROVAL OF THE TEMPORARY EROSION / SEDIMENTATION CONTROL
PLAN ONLY.
• --� TAGK 7. THE SILTATION CONTROL SYSTEMS DEPICTED Off THIS PLAN ARE SUCH AS TO
/ L2 w GL MEET THE MINIMUM KEOUIRFMFNTS OF KING COUNTY, WASHINGTON
r AS CONSTRUCTION PROGRESSES AND EXPECTED (SEASONAL) CONDITIONS
\ ✓ f - -'�� DICTATE, ADDITIONAL SILTATION CONTROL FACILITIES MAY BE REOUIREU Iv
��� • 1 �.� �Q ( RARY CONSML
CONSTRUCTION INSURE COMPLETE SILTATION CONTROL. ON THE PROPOSED PLAT THEREFUkE
7]r
• / TRA E" DETAIL -SHEET 515) DURING THE COURSE OF CONSTRUCTION IT SHALL BE THE OBLIGATION AND
r� RESPONSIBILITY OF THE DEVELOPER TO ADDRESS ANY NEW CONDITIONS THAT
• -� � wrj�7� MAY BE CREATED BY HIS ACTIVITIES AND PROVIDE ADDITIONAL FACILITIES
• OVER AND ABOVE MINIMUM REOWREMENTS AS MAY BE NEEDED TO PROTECT
ADJACENT PROPERTIES.
8 ALL DISTURBED SLOPE AREAS SHALL BE HYDRO -SEEDED GRASS SEEDING SHAH.
O�M • i 1 DONE USING AN APPROVED HYDRO -SEEDER. OR AS OTHERWISE APPROVED
/ O 111 • V-11 `{ Q� I �I r��� 9 THE KING COUNTY DEPARTMENT OF PUBLIC WORKS THE PERFORMANCE
• ���'�``��,Tj� (�6.r �j BOND SHALL NOT BE RELEASED UNTIL THE GRASS IS ESTABLISHED UNLESS
O 0 ` •ILLYy%�Y� G+J'r OTHERWISE APPROVED BY THE PUBLIC WORKS DEPARTMENT. HYDRO-SEED-
w • ING SHALL BE DONE WITHIN 60 DAYS AFTER THE COMPLETION OF ALL
CID I O J SEE TEMPORARY CONSTRUCTION CONSTRUCTION.
ENT itDETAIL- SHEET 5/5) S. THE EROSION/SEDIMENTATION CONTROL FACILITY SHALL BE CON-
, • �,T STRUCTED Fk" TO ANY EXTENSIVE LAND CLEARING OR GRADING IN ACCOR-
DANCE WITH THE APPROVED PLANS. THE FACILITIES MUST BE SATISFACTOR-
/ LY MAWTA1NED UNTIL CONSTRUCTION IS COMPLETED AND THE POTENTIAL
/ • - FOR ONSITE EROSION IS PASSED.
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JAN 2 01987
BUILDING/ZONING DEPT.
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EFOS I ON/SEDIMENTATION
CONTROL PLAN NOTES=
I WHERE POSSIBLE, MAINTAIN NATURAL VEGETATION FOR SILTATION CONTROL.
ONCE WORK+PFOR A
RIVATE PROPERTY ACCESS z PERIOD TTHATAEXCEEDSS 60 AYS, STOPPED IN ANYARE A IT MUST BEESTABALIZEDATIWIITN GRASS OR
NOT ALLDWED WITHOUT WRITTEN OTHER EROSION CONTROL TREATMENT. SEEDING CAN BE USED BETWEEN THE
/MONTHS OF APRIL AND OCTOBER. PROOF OF RI G I-}TS 3. ALL TEMPORARY EROSION SILTATION AND DETENTION PONDS SHALL BE MAIN-
TAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING
AND/OR CONSTRUCTION IS COMPLETED, ANO THE PERMANENT FACILITIES
N L-� I N YET ARE OPERATIONAL.
4 RETURN ALL SILT TI ON AREAS TO ORGIONAL GROUND CONDITIONS,pt to
I „ S WHERE STRAW BALES ARE REQUIRED, RIP- RAP SHALL BE PLACED ON BOTH
O _ —� SIDES OF BALES FOR EROSION CONTROL.
r✓M ► Nv�1e t [�// -Topes �,. I 'tops , 2
• _ �F� �J S -Q 6 APPROVAL OF THIS PLAN DOES NOT CONSTITUTE THE APPROVAL OF DESIGN,
/ @ L}L. • L �� 'fib/• H SIZE, NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR REUNTION,
f� BUT IS APPROVAL OF THE TEMPORARY EROSION / SEDIMENTATION CONTROL
— L PLAN ONLY.
v • �% I� —� ``TACK 7 THE SILTATION CONTROL SYSTEMS DEPICTED Oto THIS PLAN ARE SUCH A5 To
/ • / �� ASECONSTRT THE UICT' CONSTRUCTION PRNEQUIRFMFOGRESSES EXPECTED TS Of (SEASONAL) CONDINIUNS
• i DICTATE, ADDITIONAL SILTATION CONTROL FACILITIES MAY BE REQUIRES lu
• �_� t i ��� (5EE�TE7"IPORARY CONSTRUCTION
• I ( �_ .�INSURE COMPLETE SILTATION CONTROL ON THE PROPOSED PLAT THEREFI,Lt ENTRANCE " DETAIL - SHEET 5/5) DURING THE COURSE OF CONSTRUCTION IT SHALL BE THE OBLIGATION AND
•---- f RESPONSIBILITY OF THE DEVELOPER TO AODRESS ANY NEW CONDITIONS THAI
• —Tf` �� MAY BE CREATED BY HIS ACTIVITIES AND PROVIDE ADDITIONAL FACILITIES
• I 'v OVER AND ABOVE MINIMUM REQUIREMENTS AS MAY BE NEEDED TO PROTECT
ADJACENT PROPERTIES.
_�]` •• .1 6 ALL DISTURBED SLOPE AREAS SHALL BE HYDRO -SEEDED GRASS SEEDING SHALL,
�O I • i I J \ c-_ E DONE USING AN APPROVED HYDRO -SEEDER, OR AS OTHERWISE APPROVED
• I THE KING COUNTY DEPARTMENT OF PUBLIC WORKS THE PERFORMANCE
_ GK \ BOND SHALL NOT BE RELEASED UNTIL THE GRASS IS ESTABLISHED UNLESS
OTHERWISE APPROVED BY THE PUBLIC WORKS DEPARTMENT. HYDRO -SEED-
/ • I I I ING SHALL BE DONE WITHIN 60 DAYS AFTER THE COMPLETION OF ALL
(SEE TEMPORARY CONSTRUCT ION CONSTRUCTION.
ENTRANCE 11 DETAIL- SHEET 5/5) g THE EROSION/SEDIMENTATION CONTROL FACILITY SHALL BE CON-
STRUCTED F-MOR TO ANY EXTENSIVE LAND CLEARING OR GRADING IN ACCOR-
/ • I DANCE WITH THE APPROVED PLANS. THE FACILITIES MUST BE SATISFACTOR-
�r LY MAINTAINED UNTIL CONSTRUCTION IS COMPLETED AND THE POTENTIAL
�o� II , ^� • _ �'r FOR ONSITE EROSION IS PASSED.
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PROVIDE SLOPE ANCHORS
ON PIPE AT 30' INTERVALS,
Ap G
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NOTE:
( PROVIDE- C.B. SEDIMENTATION
CONTROL. AT ALL C. B. 'S
2� PEA GRAVEL BEDDING REQUIRED
6" OVER � UNDER PVC PIPE.
i
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SILT FENCE DETAIL
FILTER RABRIC MATERIAL
Top /off 2 To P /03
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STAPLES OR 2 N 2 x 14 6 A. WELDED
IRE GAL�GS WIRE FABRIC OR EQUAL
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MATERIAL Y �l
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I Zx2x 14 GA W.W.F. OR EGZUAI-.
14
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ill = 111
PROTECT NLE75 DURIIJG I !'2 WP6HED—
GONYPIJCT ION. KFf? P 5E D F- FLO W 6RAVEL OR PEA
IvIDIT OUT OF TUE STbRIA t3o ' GRAV E L
_ CIZCLE CRBE0KD CURS INLET-- �oM of DITCH \ ` / �J
FABRIC MATERIAL ON
aM
DURI►JG STREET GDAlSTRUGTIOti OF FILTER
� I I III =III _III = BURY 50TT/
\ MODIFY PQOTECTIM A5 CO►J- ,�
STRUCTIOM PMGFZE°.�ES. L; 2x DoUGLAS Ll g "x I TRENCH R/W
.,
8 x I TRENCH (TY P) FIR AT 4 CC_.
LiI I
X- SECT ION OF FENCE ELEVATION aISTING GROLJ�jD
AT DITCH
CRCULAR 5UAPE 15 NOT E55F-Wt4L-
PLAQ YAW 5"&PE TO Frr DRAK AGE AREA
AND TERRAItJ.Of RV MC.lrG
TRAP E FF I U ENCY AND MODFY AS
WECE564W TO 15L42I: 5ATP5FACroFZY
TRAMKtG OF 501 Ni If fr : CAN 6E
ADAPTED TO TI�CUQt3 INLET.
FRAMEEGPATE MIIJIMUM DEm-r'
FILTER I=ANIC MaIMUM DEPTW-T
1
1C 5 I : I II CL EAIJ O(Jr hVt IJ 5EDI MPJJr 15
Co" Br -LOW G RATE .
10'MINIMUM
DIMENSION
LEAVE OUT ELK TEMFDRARILY
SECTION rNSEIZrT1LE wrTu rvtIZE. 5CQE.Eu
AND G12Q1EL FL.T1wQ ... KEEP R)OL I
DEWATERED.
CATCH BASIN / INLET DATE /65
SEDIMENTATION' TRAP -TYPE "C" SHEET 115
Y
NOTE = FAQRIc rENCE � ROCK DAMS
f�R SILTf\-T lON CO TROL TO E
RACED A T 5oI INTERVALS
WHERE NEEDED.
1
PLA N
DueTlw-= GROUND
°JO' M IN.
r --IVN
RAOP °PJVEWAY
PLAN ITF,�CCES I l
ROAD.
1. USE 2' TO 4" QUARW SPgLLS OR CRL5 ROCK FOR 5Ugi:4cING
AS SNOMI MATERIAL NITo "FINES" IS NUT AC.CEPTA5LE.
Z. T14E I0'MI►JIWUM LErJCGTIJ 5WAL..L BE LENGTI.IENED AS
NECESSARY TD IAI5URE MATERIAL 15 NOT TRACKED INTO TIDE
PUBLIC RIGHT -OF -NAY.
TEMPORARY CONSTRUCTION ENTRANCE DATE T 113 11
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