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<br />FOUND 1/2M IEAVkLYAY y ,.:3PROPOSED CONCRETE 1
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<br />SOIL RETENTION, RETAIN: IN AN UNDISTURBED STATE, THE DUFF LAYER AND NATIVE TOPSOIL TO THE MAXIMUM EXTENT PRACTICABLE. IN
<br />i ANY AREAS REQUIRING GRADING REMOVE AND STOCKPILE THE DUFF LAYER AND TOPSOIL ON SITE IN A DESIGNATED, CONTROLLED AREA,
<br />NOT ADJACENT TO PUBLIC RESOURCES AND CRITICAL AREAS, TO BE REAPPLIED TO OTHER PORTIONS OF THE SITE WHERE FEASIBLE.
<br />SOIL QUALITY. ALL AREAS SUBJECT TO CLEARING AND GRADING THAT HAVE NOT BEEN COVERED BY IMPERVIOUS SURFACE, INCORPORATED.
<br />` INTO A DRAINAGE FACILITY OR ENGINEERED AS STRUCTURAL FILL OR SLOPE SHALL.., AT PROJECT COMPLETION, DEMONSTRATE THE
<br />t GRtDE AREA OVER 407., FOLLOWING:
<br />TRACT 999 1. A TOPSOIL LAYER WITH A MINIMUM ORGANIC MATTER CONTENT OF. 1 O DRY WEIGHT IN PLANTING BEDS, AND 5% ORGANIC MATTER
<br />y CONTENT IN TURF .AREAS, AND .A PH FROM 6.0 TO 8.0 OR. MATCHING THE PH OF THE UNDISTURBED SOIL, THE TOPSOIL LAYER SHALL
<br />HAVE A MINIMUM DEPTH OF EIGHT INCHES EXCEPT WHERE TREE ROOTS LIMIT THE DEPTH OF INCORPORATION OF AMENDMENTS NEEDED
<br />TO MEET THE CRITERIA. SUBSOILS BELOW THE TOPSOIL LAYER SHOULD BE SCARIFIED AT LEAST 4 INCHES WITH SOME INCORPORATION
<br />OF THE UPPER MATERIAL TO AVOID STRATIFIED LAYERS, WHERE FEASIBLE.
<br />EXISTING SIDE�E ������ � ��,v NL-I l ln1� TE: 2. MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MATERIAL
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<br />. USE COMPOST AND OTHER MATERIALS THAT FEET THESE ORGANIC CONTENT .REfUIREMENTS
<br />CONTACTOR TO POTI—TOLE AND VERIFY SEWER 0. THE ORGANIC CONTENT FOR 'PRE— APPROVED" AMEN DMENT DATES CAN DE MET ONLY USING COMPOST MEETING THE COMPOST
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<br />t DEPTH PRIOR TO CONSTRUCTION. SPECIFICATION FOR BMP T7.30: BIOsRETENTION CELLS, S TALES, AND PLANTER BOXES (P.959)9 :WITH THE EXCEPTION THAT THE
<br />COMPOST MAY HAVE UP TO 5% BIOSOLIDS OR MANURE. THE COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 40% TO
<br />65 AND A CARBON TO NITROGEN RATIO BELOW 2: 1. THE CARBON TO NITROGEN RATIO) MAY DE AS HIGH AS 35:1 FOR PLANTINGS
<br />COMPOSED ENTIRELY OF PLANTS NATIVE TO TI-1cPR IGE T SOUND LOWLANDS RE —ION.
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<br />b. CALCULATED AMENDMENT DATES MAY BE MET THROUGH USE OF COMPOSTED MATERIAL MEETING ('A,) ABOVE; OR OTHER ORGANIC
<br />s"ww t �? �g t F \� `�., � _ MATERIALS AMENDED TO MEET THE CARBON TO NITROGEN RATIO REQUIREMENTS, AND NOT EXCEEDING THE CONTAMINANT LILIMITSi< n { `^Z 0 C.^lowy. -- IDENTIFIED INTABLE 220-D, TESTING PARAMETERS, IN 'SAC 173-550-220.
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<br />` ° THE RESULTING SOIL SHOULD DE CONDUCIVE TO THE TYPE OF VEGETATION TO BE ESTABLISHED.
<br />—'\ %, wt
<br />' \ _ �' Nn IMPLEMENTATION OPTIONS: THE SOIL QUALITY DESIGN GUIDELINES LISTED ABOVE CAN DE DIET BY USING ONE OF THE METHODS LISTED
<br />P BELOW:
<br />55
<br />EXC 1, LEAVE UNDISTURBED NATIVE VEGETATION AND SOIL, AND PROTECT FROM COMPACTION CTION DURING CONSTRUCTION,
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<br />AMEND EXISTING ING SITE TOPSOIL OR SUBSOIL EITHER AT DEFAULT 'PRE—APPROVEDDATES, OR AT. CUSTOM CALCULATED DATES BASED
<br />ON TESTS OF THE SOIL AND AMENDMENT.
<br />s z b..� 3. STOCKPILE EXISTING TOPS®
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<br />f , 2'3 ,„ PVC IL DURING GRADING, AND REPLACE IT PRIOR TO PLANTING. STOCKPILED TOPSOIL MUST ALSO BE AMENDED
<br />�. 1 r� "` IF NEEDED TO MEET THE ORGANIC MATTER OR DEPTH REQUIREMENTS, EITHER AT A DEFAULT `PRE— APPROVED" RATE OR AT A CUSTOM
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<br />.mu= CALCULATED DATE.
<br />`� x, S.0 4. IMPORT TOPSOIL MIX OF SUFFICIENT ORGANIC CONTENT AND DEPTH TO MEET THE REQUIREMENTS.
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<br />MORE THAN ONE METHOD MAY BE USED ON DIFFERENT PORTIONS OF THE SAME SITE, SOIL THAT ALREADY MEETS THE DEPTH AND
<br />ORGANIC MATTER QUALITY® STANDARDS, AND IS NOT COMPACTED, DOES. NOT NEED TO BE AMENDED.
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<br />z'� FLOC 4 3 ' AREA A -AREA B
<br />7 PARCEL/ BARROW
<br />STOCKPILE AND LJ
<br />UNCOMPACTED, UNGRADED,
<br />(TYP.)MA =1151
<br />_ a "li _ r AMEND SOIL IF UNDISTURBED
<br />y@q tE _ 10 "' ✓$ � ,.�� ,„, ,._i� NECESSARY "OPTION a'
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<br />37,595 SF
<br />YARD :.
<br />f DRAIN F 110.08
<br />r LINAGE NOTES
<br />BASIC DRDOWNSTREAM
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<br />ARROWS/ E € 1. NO DART OF THE DRAINAGE SYSTEM SHALL BE COVERED, CONCEALED, OR PUT INTO USE UNTIL IT
<br />_ (TAP HAS BEEN INSPECTED, aTESTED AND ACCEPTED BY THE CITY OF EVERETT.
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<br />�' 2. ALL. WORK AND MATERIAL SHALL CONFORM TO THE CITY OF EVERETT DESIGN AND CONSTRUCTION
<br />ADDITIONAL 'D/W . a' �" �a ..��•.kl�R
<br />(1,549 SF) e ` �� , _ •�4s m: x STANDARDS AND SPECIFICATIONS AND THE SDOT/AP A STANDARD SPECIFICATIONS FOR LOAD,
<br />�.. �. CONNECT N DRAINS BRIDGE, AND MUNICIPAL CONSTRUCTION CURRENT EDITION).
<br />CONVEYANCE ( )
<br />Vr , — 5. APPROXIMATE LOCATIONS OF 'EXISTING UTILITIES HAVE BEEN OBTAINED FROM AVAILABLE RECORDS
<br />AND ARE SHOWN FOR CONVENIENCE. THE CONTRACTOR SHALL DE RESPONSIBLE FOR VERIFICATION
<br />OF LOCATIONS AND TO AVOID DAMAGE TO ANY ADDITIONAL UTILITIES SHOWN. IF CONFLICTS WITH
<br />'yam EXISTING UTILITIES ARISE DURING CONSTRUCTION, THE CONTRACTOR SHALL NOTIFY" THE PUBLIC
<br />°k v„ e WORKS INSPECTOR AND ANY CHANGES REQUIRED SHALL BE APPROVED BY THE CITY ENGINEER
<br />f °f " ` t PRIOR TO COMMENCEMENT OF RELATED CONSTRUCTION ON THE PROJECT.
<br />AREA `A' f f f ! s / v: 4 r
<br />3,145 SFDOWNSPOUT, f � f,` f 4. ALL STORM SYSTEMS WITHIN THE PUBLIC RIGHT—OF—WAY OR IN EASEMENTS DUST BE STAKED BY
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<br />f SURVEY FOR LIME AND GRADE PRIOR TO STARTING CONSTRUCTION.
<br />1� CONNECTION
<br />YARD DRAIN._P }' 5. ALL CATCH BASIN GRATES MUST BE STENCILED OR STAMPED "DUMP NO WASTE, DRAINS TO
<br />ff 2'/ ,, f f STREAM, LAKE, RIVER, PUGE�T SOUND, OR WETLAND." CHOOSE APPROPRIATE FEATURE FOR THE
<br />5, PROJECT.
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<br />A PUBLIC WORKS PERMIT IS REQUIRED
<br />STARTING ANY CONSTRUCTION ON TH
<br />PROJECT APPROVAL FOR THIS PRO,
<br />CITE' ENGIMEER IS COND1770NAL PER CURRENT STANE
<br />AND EXPIRES UNLES:
<br />FOR CONSTRUCTION HAS BEEN ISSUE
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