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<br />CB #1, TYPE 1
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<br />TYPE I CB /
<br />RIM=594.68
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<br />GARDEN ESTATES
<br />SECTION 12, TOWNSHIP 28N, RANGE 4E, W.M.
<br />LOT 17
<br />BEVERLY HOME SITES DIV. NO, 1
<br />VOL. 10, P. 74
<br />SP 35 �GJDG1 AREA 'A'
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<br />IE 8" PVC E=594.55 IE 12" CONC W=566.43 (SEE SHT. 6 FOR DET.)
<br />INTERSECTION
<br />PROP. 10' 2'x10' IE 12" CONC E=566.97 / IE 6" PVC S-566.63
<br />STA 4+04.20 (UPPER RIDGE RD) DRAINAGE ESM'T PERF. STUBOUT IE 12" CONC SW=567.28 - Q Z
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<br />BASIC SOIL AMENDMENT NOTES
<br />SOIL RETENTION. RETAIN, IN AN UNDISTURBED STATE, THE DUFF LAYER AND NATIVE TOPSOIL TO THE MAXIMUM EXTENT PRACTICABLE. IN
<br />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 />FOLLOWING:
<br />1. A TOPSOIL LAYER WITH A MINIMUM ORGANIC MATTER CONTENT OF 10% DRY WEIGHT IN PLANTING BEDS, AND 5% ORGANIC MATTER
<br />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 />2. MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MATERIAL
<br />3. USE COMPOST AND OTHER MATERIALS THAT MEET THESE ORGANIC CONTENT REQUIREMENTS:
<br />a. THE ORGANIC CONTENT FOR "PRE -APPROVED" AMENDMENT RATES CAN BE MET ONLY USING COMPOST MEETING THE COMPOST
<br />SPECIFICATION FOR BMP T7.30: BIORETENTION CELLS, SWALES, AND PLANTER BOXES (P.959), WITH THE EXCEPTION THAT THE
<br />COMPOST MAY HAVE UP TO 35% BIOSOLIDS OR MANURE. THE COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 40% TO
<br />65%, AND A CARBON TO NITROGEN RATIO BELOW 25:1. THE CARBON TO NITROGEN RATIO MAY BE AS HIGH AS 35:1 FOR PLANTINGS
<br />COMPOSED ENTIRELY OF PLANTS NATIVE TO THE PUGET SOUND LOWLANDS REGION.
<br />b. CALCULATED AMENDMENT RATES MAY BE MET THROUGH USE OF COMPOSTED MATERIAL MEETING (A.) ABOVE; OR OTHER ORGANIC
<br />MATERIALS AMENDED TO MEET THE CARBON TO NITROGEN RATIO REQUIREMENTS, AND NOT EXCEEDING THE CONTAMINANT LIMITS
<br />IDENTIFIED IN TABLE 220-13, TESTING PARAMETERS, IN WAC 173-350-220.
<br />THE RESULTING SOIL SHOULD BE CONDUCIVE TO THE TYPE OF VEGETATION TO BE ESTABLISHED.
<br />IMPLEMENTATION OPTIONS: THE SOIL QUALITY DESIGN GUIDELINES LISTED ABOVE CAN BE MET BY USING ONE OF THE METHODS LISTED
<br />BELOW:
<br />1. LEAVE UNDISTURBED NATIVE VEGETATION AND SOIL, AND PROTECT FROM COMPACTION DURING CONSTRUCTION.
<br />2. AMEND EXISTING SITE TOPSOIL OR SUBSOIL EITHER AT DEFAULT "PRE- APPROVED" RATES, OR AT CUSTOM CALCULATED RATES BASED
<br />ON TESTS OF THE SOIL AND AMENDMENT.
<br />3. STOCKPILE EXISTING TOPSOIL DURING GRADING, AND REPLACE IT PRIOR TO PLANTING. STOCKPILED TOPSOIL MUST ALSO BE AMENDED
<br />IF NEEDED TO MEET THE ORGANIC MATTER OR DEPTH REQUIREMENTS, EITHER AT A DEFAULT "PRE- APPROVED" RATE OR AT A CUSTOM
<br />CALCULATED RATE.
<br />4. IMPORT TOPSOIL MIX OF SUFFICIENT ORGANIC CONTENT AND DEPTH TO MEET THE REQUIREMENTS.
<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.
<br />AREA A ❑ AREA B
<br />STOCKPILE AND UNCOD, UNGRADED,
<br />AMEND SOIL IF UNDISTURBED
<br />NECESSARY "OPTION 3"
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<br />BASIC DRAINAGE NOTES
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<br />1. NO PART OF THE DRAINAGE SYSTEM SHALL BE COVERED, CONCEALED,
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<br />OR PUT INTO USE UNTIL IT HAS BEEN INSPECTED, TESTED, AND
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<br />2. ALL WORK AND MATERIAL SHALL CONFORM TO THE CITY OF EVERETT
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<br />DESIGN AND CONSTRUCTION STANDARDS AND SPECIFICATIONS AND THE
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<br />WSDOT/APWA STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND
<br />MUNICIPAL CONSTRUCTION (CURRENT EDITION).
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<br />3. APPROXIMATE LOCATIONS OF EXISTING UTILITIES HAVE BEEN OBTAINED
<br />FROCONTTRACTOR AVAILABLERECORDS
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<br />RESPONSIBLE FOR VERIFICATION OFNLOCATI1ONS
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<br />AND TO AVOID DAMAGE TO ANY ADDITIONAL UTILITIES SHOWN. IF
<br />CONFLICTS WITH EXISTING UTILITIES ARISE DURING CONSTRUCTION, THE
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<br />CONTRACTOR SHALL NOTIFY THE PUBLIC WORKS INSPECTOR AND ANY
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<br />CHANGES REQUIRED SHALL BE APPROVED BY THE CITY ENGINEER
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<br />PRIOR TO COMMENCEMENT OF RELATED CONSTRUCTION ON THE
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<br />PROJECT.
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<br />4. ALL STORM SYSTEMS WITHIN THE PUBLIC RIGHT-OF-WAY OR IN
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<br />EASEMENTS MUST BE STAKED BY SURVEY FOR LINE AND GRADE PRIOR
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<br />TO STARTING CONSTRUCTION.
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<br />5. ALL CATCH BASIN GRATES MUST BE STENCILED OR STAMPED "DUMP
<br />NO WASTE, DRAINS TO STREAM, LAKE, RIVER, PUGET SOUND, OR
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<br />WETLAND." CHOOSE APPROPRIATE FEATURE FOR THE PROJECT.
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<br />FUTURE LOT DOWNSPOUT
<br />FILTER FABRIC CONNECTION NOTE:
<br />cALL ROOF •FROM THE FUTURE
<br />z 4" PERF PIPE SFRS ASSOCIATED WITH THIS PROJECT
<br />SHALL BE CONNECTED TO PERFORATED
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<br />1 WASHED ROCK STUB -OUT CONNECTIONS PRIOR TO
<br />CONNECTION TO THE PROJECT
<br />-T;= v vDRAINAGE
<br />OF
<br />MI SHALL BE INSTALLED AT THE TIME
<br />-24" MI BUILDING PERMIT. REFER TO
<br />THIS SHEET.
<br />PERFORATED STUBOUT
<br />CONNECTION DETAIL
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<br />RECORD DRAWING
<br />This Record Drawing has been prepared, in part,
<br />based on "As -Built" information provided by
<br />others. Though the as -built information and this
<br />drawing are based on the best available
<br />information, no presumption should be made
<br />regarding the drawing's accuracy.
<br />Jim Knappert 11/06/2024
<br />Permit Inspector
<br />CALL 48 HOURS
<br />BEFORE YOU DIG
<br />811
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<br />AS -BUILT NOTE:
<br />THE AS -BUILT INFORMATION SHOWN WAS
<br />PROVIDED BY HARMSEN LAND SURVEYORS.
<br />OMEGA ENGINEERING HAS PREPARED AND
<br />STAMPED THIS DRAWING BASED ON THAT
<br />INFORMATION.
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<br />PROD. NO. O8N. BY:
<br />1 7- 0408 1 RAW
<br />DATE:
<br />7/17/19
<br />SCALE:
<br />V. = 40'
<br />DRAWING NO.
<br />49 OF
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