|
,�,l J�.l�,.�!, _
<br /> . �� �_ -, S .E . 1 /4 SECo "7 , T. 2�N, R. SE . �W.M.
<br /> � Sl�OHfJ1VIISI� �QUNTY, WA. �
<br /> � SUIL A�►�END�✓IEN� NC�T.ES: DOE 2a 14 SWM BMP T5.13
<br /> DES(GN GUIDELINES
<br /> SOIL RETENTION
<br /> RETAIN, IN AN UNDISTURBED STATE, TH� DUF� LAYER AND NAT(VE TOpS01L TO THE MAXIMUM EXTENT
<br /> PRACTICABLE. lN ANY AREAS REQUIRING GRADING REMOVE AND ST�CKPILE THE DUFF L.A�'ER AND TOPSOIL ON
<br /> -� REAP LIEDaT010THERpPORTION�SL Fp HE�SITEOWHEREAFEAS(gL0 PUBLIC RESOURCES AND CRITICAL AREAS, TO $E '
<br /> SOIL QUAL.ITY
<br /> �,�j ~ �' ALL ARE�S SUBJECT 1`0 CLEARING AND GRADING THAT HAVE NOT BEEN COVERED BY IMPERVlOUS SURFACE,
<br /> INCORPORATED lNTO A DRAINAGE FAClUTY �R ENGIN�EREQ AS STRUCTURAL FILL OR SLOPE SHALL, AT PROJECT
<br /> COMPLETION, DEMONSTRAT£ TNE FOLLOW{NG:
<br /> 1. A T�PSOIL LAYEft WITH A MfNIMUM �RGANIC MATTER CON�ENT OF �0� QRY WEIGHT IN PLANTING BEDS, AND �
<br /> S' S� ORGANIC MATTER CONTENT IN TURF AREAS, AND A PM FROM 6.� 2Q14 STORMWATER MANAGEMENT
<br /> MANUAL. �'4R WESTERN WASHINGTON VOLUME V — CHAPTER 5 — PAGE 911 TO 8.0 OR MATCHING THE F'H OF
<br /> zo° 0 20' 40' THE UNQiSTURBED SOIL. THE TOPSOIL LAYER 5HALL HAVE A MINIMUM DEPTH OF EiGHT INCHES EXCEPT WHERE
<br /> TREE ROOTS LIMIT THF DEPTH 4F INCORPORATfON 0� AMENDMENTS NEEDED TO MEEfi THE CRITER(A. SUBSOILS
<br /> = L4T 5 � inch = 20 ft. UPP�� I�ATERIAL�TO AVQID STRA IDI DE LAYER�S�EWH�RE FEASIB�.�CHES WITF1 SOME INCORPO�ATIQN OF THE
<br /> ,
<br /> �,,, �o� Q �� 2, MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MATERIAI..
<br /> 't �' ��
<br /> � 3. USE COMPQST ANa OTHER MATERlALS THAT MEET TNESE QRGANIC CONTENT REQU(REMENTS:
<br /> � �c,! \ �. THE ORGANIC CONTENT F4R "PRE—APPR�VED" AM�NDMENT RATES CAN BE MET ONL.Y US�NG COMPOST ,
<br /> J �' � MEETING TNE COMPOS�fi SPECIFICATION FOR BMP T7.30:BfORETENTI�N CELLS, SWALES, AND PLANTER BOXES
<br /> � � (P.959), WITH THE EXCEpT10N 7HAT THE COMPO5T MAY MAVE UP TO 35� BIOSOLlDS OR MANURE. THE
<br /> h� m COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 40� TO 6�%, AND A CARBON TO NITROGEN
<br /> � � RATIO BEL,OW 25:1. THE CARBON TO NITROGEN RATIO MAY BE AS HIGN AS 35:1 FOR PLANTINGS COMPOSED
<br /> � . ENTlREI.Y OF PLANTS NATIVE TO THE PUGET S4UND LOWLANDS REGiON. CALCULATED AMENDMENT RATES MAY
<br /> � BE M�T THROUGH U5E 4F COMPOSTED MAT�RIAL MEETING (A.} ABOVE; QR OTHER ORGAN{C MATERIALS
<br /> Q AMENQED TQ MEET TNE CARBON T4 NIiR4GEN RATIO REQUIREMENTS, AIVQ NOT EXCEEDiNG THE CONTAMINANT
<br /> LO� 4 1 LIMITS IDENTIFIED IN TABLE 220-5, TESTING PARAMETERS, IN WAC 173-350-220.
<br /> � TNE RESULTING SOIL 5NOULD BE CONDUCIV� TO ThIE TYPE OF VEGETATl4N TO BE ESTABLISHED.
<br /> �
<br /> 1 •
<br /> (MPLEMENTATION OPTIONS:
<br /> TNE SOIL QUALITY pESIGN GUIDELINES LfSTED ABOVE CAN BE MET BY US1NG ONE OF THE METHODS USTED BELOW:
<br /> 1. LEAVE UND{STURBED NATlVE V�GETATION AND SOIL, A�lD PROTECT FROM C4MPACTI4N DURING CONSTRUCTION.
<br /> 2. AMEND EXfS�(NG SITE TOP�OIL OR SUBSOIL EITHER AT DEFAULT "PRE--APPROVED" RAT�S, OR AT CUST�M
<br /> CAL.CULATED RATES BASEb 4N TESTS OF THE SOIL AND AMENDM�NT.
<br /> ''� 3. STOCKPfLE EXISTING TOPSOIL DURING GRADING, AND REPLACE 1T PRIOR TO PLANTING. STOCKPILED TOPSOIL
<br /> L.OT 3 MUST ALSO 8E AMENDED !F NEEDED TO MEET THE ORGANIC MATTER 4R DEPTN REQUIREM�NTS, EITHER AT A
<br /> � DEF`AULT "PRE—APPROVED'' RATE OR AT A CUSTOM �ALCULA�fED RATE. •
<br /> � 4, fMPORT TOP�OIL MIX OF S�JFFICf�NT ORGANIC CONT�NT AND DEPT�k TO MEET TH� REQUIREMENTS.
<br /> \
<br /> \
<br /> \ �
<br /> � �
<br /> �o-r � ,,-'
<br /> �
<br /> �
<br /> �-
<br /> w .
<br /> �
<br /> � .;=
<br /> .,
<br /> ..�
<br /> :
<br /> .. �
<br /> ; � .
<br /> � =� �
<br /> ..
<br /> LUT 1 .� , .-� � �� � NOTE:
<br /> � ��' '� AMEND SOIL FOR DISTURBED, GRADED OR C4MPACTED AREAS ONLY. ;;
<br /> � .s�/
<br /> --
<br /> // • SEE NOTES �
<br /> �
<br /> .LEGE.N�. ( )
<br /> �
<br /> �
<br /> / AREA A AREA B
<br /> ,�; / t�.��� BAS1C SOIL AMENDMENT UNCOMPACTED, UNGRADED, UNDISTURBEQ
<br /> �
<br /> ��pP
<br /> `:w; ��,°
<br /> �LAf� AP�R��E[�
<br /> � 3 lg
<br /> � ���xc s�Rvices n
<br /> DRdIP��G� ERO�ION pU�I,IC b4�ORKs�
<br /> L»PARTR9�fV 7r
<br /> �asr��
<br /> � A PUBL?C WORXS VERM3T %5
<br /> .. ... . ..._:. .
<br /> R�fQUYRED �A30R TO STARTING
<br /> S�:VdER APdY C4fVSTRUGTYOP! OE3 TN�S
<br /> pR0]EC7. AP?i20llAt FOR TiiIS
<br /> SOIL MANACiE�V11E�T P , ��o�E� Y� coN��o�a� ��R
<br /> -��� �UR������AND
<br /> EXPTRES � UI'�LWSS
<br /> _,,,�.—.----r C g��;y{yEg. BEEPi ssu�o`o��R"`��'�w''� 1 REVlSi0N5 PER CQE 5/4/18 COMMENTS RAH 5/10/18
<br /> � i REV. N0. DESCRIP770N IN177ALS DATE
<br /> UTILITY C4NFLICT NOTE: G.M�D� SOIL MAIVAGEMENT PLAN
<br /> ����N: �°F w"���' � J o C . M c D C� �I �l E L��. _�-- .� B USTAR.� CUSTD�VI CUNS�'R U�'�"IC�1V, �vc
<br /> THE CONTRACTOR SFiALt. 8E RESPONSIBLE FOR VERIF1fiNG TNE L4CATfON, D1MENSlON, ANb
<br /> DEPTH OF At1 F_XlSTING U71ttT1�S WHEfH�R SHOWN ON THESE PIANS OR N4T, 8Y ' a n _
<br /> POTNOLIPI6 THE t1TilJ�1ES AND SURVEI'1N� TNE HORtZONTAL AND VERTIG4L LOCATlON PRIOR E N�i N �E R(�I G f� S H 0 R T S lJ�D i V I S I 0 hl #� 7�"`Q O�
<br /> � � i'0 CONSTRUCTlON. THIS SFWLL 1NCLUDE CALLING U]7UT?' LOCAi'�' Q t-800-424-5555 AND q _ � � � r'� � C I TY O F E VE R E TT, S N 4 H O M I S H C 4 U N TY, WA S H I N G TO N
<br /> 70�PHYS�CAL�Y 1�RlfY WHETHER OR NQT CONFLICTS EXfST.�OC�IONS D�SAtD UT�(lIES� � 2i� �
<br /> - - ' P N T H U N V E R 1 F l E D P t I B I l C I N F O R M A T 1 0 N A ND �� �, � `�'� � � � � � �� DRAWN BY DA7E REV. 8Y DRTE PROJ�CT MANAG�R SCALE '
<br /> Know what s b@IOW. AS SHOWN ON THESE PLANS ARE 9ASED U 0 e �,�
<br /> ARE SUBJECT i'0 VARIAITON. fF CONFL/CTS SNOULp ACCUf? TNE CONTRACTOR SHALL J5�! 10/18/17 J.C. McQONhIELL 1 - 20
<br /> _ � Call before you dig. corvSUcr J.c. MC04NNELL ENGlNEERIN6, PC TO RESQLVE ALL PROBLEMS PRIOR TO ) � P.O. BOX 13199, MILL CREEK, WASHINGTON TEL:(425) 744-0916 pRAWlNG F�ILE NAME CHK. BY �8. N0. J08 NQ. SHT. 1V0.
<br /> � PROCEEDtN� Wl7N CONSTRUCTION. �� l� ���� i FA�(: (425� 744'�946 6053 FLORIflA ENG.Df4� 6D53 6 of fi
<br />
|