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20-104332-UP-Wetland Mitigation Plan-11-06-2020-V2PARCEL BOUNDARYDELINEATED WETLAND BOUNDARYAPPROXIMATE WETLAND BOUNDARYDELINEATED OHWMSTREAM BUFFER (35')SIGNIFICANT TREEPROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHVICINITY MAPSEXISTING CONDITIONSW1LEGENDNTS35'STREAMBUFFERS 293RD STPROJECTLOCATIONSHEET INDEXW1EXISTING CONDITIONSW2PROPOSED IMPACTSW3MITIGATION AND PLANTING PLANW4PLANT INSTALLATION SPECIFICATIONS AND SCHEDULESW5MITIGATION AND PLANT INSTALLATION DETAILSW6MITIGATION PLAN NOTESW7TREE RETENTION AND REMOVAL PLANW8TREE RETENTION AND REMOVAL NOTESNOTES1.OHWM AND WETLAND DELINEATION COMPLETED BY THE WATERSHEDCOMPANY ON DECEMBER 11, 2019 (750 6TH STREET SOUTH;KIRKLAND, WA 98033; 425-9822-5242). SEE DELINEATION REPORT BYTHE WATERSHED COMPANY (DATED DECEMBER 19, 2019) FORFURTHER DETAILS.2.WETLAND BUFFER IS DETERMINED TO BE 150 FEET. WETLANDBUFFER ENCUMBERS ENTIRETY OF PARCEL IS NOT VISIBLE WITHINPLAN EXTENTS.3.SURVEY (DATED DECEMBER 31, 2019) PROVIDED BY TERRANE (10801MAIN STREET, SUITE 102, BELLEVUE, WA 98004; 425-458-4488).APPLICANT PARCEL#7202500080SCALE 1:1040'10'5'0'20'WETLAND A,CATEGORY II(150' BUFFER)STREAM A,TYPE Ns(35' BUFFER)13011302130313041305130613071309131013121315132113221327132613231324131413131340133813371333133213391328132913301308*1316*1317*1318*1325*1331*1334*13361335*17 GAR. SLAB - 176.0'MAIN FLOOR - 171.0'BASEMENT - 161.0'DECK2-CAR GARAGEEXISTING CONDITIONSPARCEL BOUNDARYDELINEATED WETLAND BOUNDARYAPPROXIMATE WETLAND BOUNDARYDELINEATED OHWMSTREAM BUFFER (35')SIGNIFICANT TREEPROPOSED CONDITIONSLIMITS OF DEVELOPMENT / CONSTRUCTIONPERMANENT BUFFER IMPACTS (4,455 SF TOTAL)IMPERVIOUS AREA (3,185 SF)YARD / SETBACK AREA (1,270 SF)PROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHPROPOSED IMPACTSW2LEGENDS 293RD STNOTES1.SITE PLAN (DATED MAY 22, 2020) PROVIDED BY URBAN DESIGNGROUP (879 RAINIER AVENE N, SUITE A200; RENTON, WA 89057;206-838-8250).2.SEE SHEET W7 FOR TREE RETENTION AND REMOVAL PLAN.SCALE 1:1040'10'5'0'20'WETLAND A,CATEGORY II(150' BUFFER)STREAM A,TYPE Ns(35' BUFFER)PROPOSEDSINGLE FAMILYRESIDENCEPROPOSEDDRIVEWAYPROPOSEDDECK35'STREAMBUFFER5'EAVEOVERHANG20' PARCELLINE SETBACK EXISTING CONDITIONSPARCEL BOUNDARYDELINEATED WETLAND BOUNDARYAPPROXIMATE WETLAND BOUNDARYDELINEATED OHWMSTREAM BUFFER (35')SIGNIFICANT TREEPROPOSED CONDITIONSMITIGATION AREAS (13,465 SF TOTAL)TYPE 1 PLANTING AREA / BUFFERRESTORATION (2,230 SF)TYPE 2 PLANTING AREA / UNDERSTORYINFILL (11,235 SF)SPLIT RAIL FENCECOIR LOGGAR. SLAB - 176.0'MAIN FLOOR - 171.0'BASEMENT - 161.0'DECK2-CAR GARAGEPROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHMITIGATION AND PLANTING PLANCW5W3LEGENDS 293RD STNOTES1.WETLAND BUFFER IS DETERMINED TO BE 150 FEET. BUFFERENCUMBERS ENTIRETY OF PARCEL IS ARE NOT SHOWN WITHIN PLANEXTENTS.2.SEE SHEET W4 FOR PLANT INSTALLATION SPECIFICATION ANDSCHEDULES.3.SEE SHEET W5 FOR MITIGATION AND PLANTING DETAILS.SCALE 1:1040'10'5'0'20'WETLAND A,CATEGORY II(150' BUFFER)STREAM A,TYPE Ns(35' BUFFER)PROPOSEDSINGLE FAMILYRESIDENCEPROPOSEDDRIVEWAYPROPOSEDDECK35'STREAMBUFFERAW5EAVEOVERHANG BOTANICAL NAME / COMMON NAMEQTY.SIZESPACINGTREESTHUJA PLICATA / WESTERN RED CEDAR301 GAL.15' O.C.TSUGA HETEROPHYLLA / WESTERN HEMLOCK301 GAL.15' O.C.TOTAL PLANT QUANTITY: 60BOTANICAL NAME / COMMON NAMEQTY.SIZESPACINGTREESTHUJA PLICATA / WESTERN RED CEDAR51 GAL.9' O.C.TSUGA HETEROPHYLLA / WESTERN HEMLOCK51 GAL.9' O.C.TREE QUANTITY: 10SHRUBSACER CIRCINATUM / VINE MAPLE51 GAL.5' O.C.CORYLUS CORNUTA / BEAKED HAZELNUT51 GAL.5' O.C.OEMLERIA CERASIFORMIS / OSOBERRY121 GAL.5' O.C.RIBES SANGUINEUM / RED FLOWERING CURRANT121 GAL.5' O.C.ROSA NUTKANA / NOOTKA ROSE121 GAL.5' O.C.RUBUS SPECTABILIS / SALMONBERRY121 GAL.5' O.C.SYMPHORICARPOS ALBUS / SNOWBERRY151 GAL.5' O.C.VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY151 GAL.5' O.C.SHRUB QUANTITY: 88GROUNDCOVERSGAULTHERIA SHALLON / SALAL601 GAL.3' O.C.MAHONIA NERVOSA / DULL OREGON GRAPE601 GAL.3' O.C.POLYSTICHUM MUNITUM / WESTERN SWORDFERN601 GAL.3' O.C. GROUNDCOVER QUANTITY: 180TOTAL PLANT QUANTITY: 278PROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHW4 PLANT INSTALLATION SPECIFICATIONSGENERAL NOTESQUALITY ASSURANCE1.PLANTS SHALL MEET OR EXCEED THE SPECIFICATIONS OF FEDERAL, STATE, AND LOCALLAWS REQUIRING INSPECTION FOR PLANT DISEASE AND INSECT CONTROL.2.PLANTS SHALL BE HEALTHY, VIGOROUS, AND WELL-FORMED, WITH WELL DEVELOPED,FIBROUS ROOT SYSTEMS, FREE FROM DEAD BRANCHES OR ROOTS. PLANTS SHALL BEFREE FROM DAMAGE CAUSED BY TEMPERATURE EXTREMES, LACK OR EXCESS OFMOISTURE, INSECTS, DISEASE, AND MECHANICAL INJURY. PLANTS IN LEAF SHALL BEWELL FOLIATED AND OF GOOD COLOR. PLANTS SHALL BE HABITUATED TO THE OUTDOORENVIRONMENTAL CONDITIONS INTO WHICH THEY WILL BE PLANTED (HARDENED-OFF).3.TREES WITH DAMAGED, CROOKED, MULTIPLE OR BROKEN LEADERS WILL BE REJECTED.WOODY PLANTS WITH ABRASIONS OF THE BARK OR SUN SCALD WILL BE REJECTED.4.NOMENCLATURE: PLANT NAMES SHALL CONFORM TO FLORA OF THE PACIFICNORTHWEST BY HITCHCOCK AND CRONQUIST, UNIVERSITY OF WASHINGTON PRESS, 1973AND/OR TO A FIELD GUIDE TO THE COMMON WETLAND PLANTS OF WESTERNWASHINGTON & NORTHWESTERN OREGON, ED. SARAH SPEAR COOKE, SEATTLEAUDUBON SOCIETY, 1997.DEFINITIONS1.PLANTS/PLANT MATERIALS. PLANTS AND PLANT MATERIALS SHALL INCLUDE ANY LIVEPLANT MATERIAL USED ON THE PROJECT. THIS INCLUDES BUT IS NOT LIMITED TOCONTAINER GROWN, B&B OR BAREROOT PLANTS; LIVE STAKES AND FASCINES (WATTLES);TUBERS, CORMS, BULBS, ETC..; SPRIGS, PLUGS, AND LINERS.2.CONTAINER GROWN. CONTAINER GROWN PLANTS ARE THOSE WHOSE ROOTBALLS AREENCLOSED IN A POT OR BAG IN WHICH THAT PLANT GREW.SUBSTITUTIONS1.IT IS THE CONTRACTOR'S RESPONSIBILITY TO OBTAIN SPECIFIED MATERIALS IN ADVANCEIF SPECIAL GROWING, MARKETING OR OTHER ARRANGEMENTS MUST BE MADE IN ORDERTO SUPPLY SPECIFIED MATERIALS.2.SUBSTITUTION OF PLANT MATERIALS NOT ON THE PROJECT LIST WILL NOT BE PERMITTEDUNLESS AUTHORIZED IN WRITING BY THE RESTORATION CONSULTANT.3.IF PROOF IS SUBMITTED THAT ANY PLANT MATERIAL SPECIFIED IS NOT OBTAINABLE, APROPOSAL WILL BE CONSIDERED FOR USE OF THE NEAREST EQUIVALENT SIZE ORALTERNATIVE SPECIES, WITH CORRESPONDING ADJUSTMENT OF CONTRACT PRICE.4.SUCH PROOF WILL BE SUBSTANTIATED AND SUBMITTED IN WRITING TO THE CONSULTANTAT LEAST 30 DAYS PRIOR TO START OF WORK UNDER THIS SECTION.INSPECTION1.PLANTS SHALL BE SUBJECT TO INSPECTION AND APPROVAL BY THE RESTORATIONCONSULTANT FOR CONFORMANCE TO SPECIFICATIONS, EITHER AT TIME OF DELIVERYON-SITE OR AT THE GROWER'S NURSERY. APPROVAL OF PLANT MATERIALS AT ANY TIMESHALL NOT IMPAIR THE SUBSEQUENT RIGHT OF INSPECTION AND REJECTION DURINGPROGRESS OF THE WORK.2.PLANTS INSPECTED ON SITE AND REJECTED FOR NOT MEETING SPECIFICATIONS MUST BEREMOVED IMMEDIATELY FROM SITE OR RED-TAGGED AND REMOVED AS SOON ASPOSSIBLE.3.THE RESTORATION CONSULTANT MAY ELECT TO INSPECT PLANT MATERIALS AT THEPLACE OF GROWTH. AFTER INSPECTION AND ACCEPTANCE, THE RESTORATIONCONSULTANT MAY REQUIRE THE INSPECTED PLANTS BE LABELED AND RESERVED FORPROJECT. SUBSTITUTION OF THESE PLANTS WITH OTHER INDIVIDUALS, EVEN OF THESAME SPECIES AND SIZE, IS UNACCEPTABLE.MEASUREMENT OF PLANTS1.PLANTS SHALL CONFORM TO SIZES SPECIFIED UNLESS SUBSTITUTIONS ARE MADE ASOUTLINED IN THIS CONTRACT.2.HEIGHT AND SPREAD DIMENSIONS SPECIFIED REFER TO MAIN BODY OF PLANT AND NOTBRANCH OR ROOT TIP TO TIP. PLANT DIMENSIONS SHALL BE MEASURED WHEN THEIRBRANCHES OR ROOTS ARE IN THEIR NORMAL POSITION.3.WHERE A RANGE OF SIZE IS GIVEN, NO PLANT SHALL BE LESS THAN THE MINIMUM SIZEAND AT LEAST 50% OF THE PLANTS SHALL BE AS LARGE AS THE MEDIAN OF THE SIZERANGE. (EXAMPLE: IF THE SIZE RANGE IS 12" TO 18", AT LEAST 50% OF PLANTS MUST BE15" TALL.).SUBMITTALSPROPOSED PLANT SOURCES1.WITHIN 45 DAYS AFTER AWARD OF THE CONTRACT, SUBMIT A COMPLETE LIST OF PLANTMATERIALS PROPOSED TO BE PROVIDED DEMONSTRATING CONFORMANCE WITH THEREQUIREMENTS SPECIFIED. INCLUDE THE NAMES AND ADDRESSES OF ALL GROWERSAND NURSERIES.PRODUCT CERTIFICATES1.PLANT MATERIALS LIST - SUBMIT DOCUMENTATION TO CONSULTANT AT LEAST 30 DAYSPRIOR TO START OF WORK UNDER THIS SECTION THAT PLANT MATERIALS HAVE BEENORDERED. ARRANGE PROCEDURE FOR INSPECTION OF PLANT MATERIAL WITHCONSULTANT AT TIME OF SUBMISSION.2.HAVE COPIES OF VENDOR'S OR GROWERS' INVOICES OR PACKING SLIPS FOR ALL PLANTSON SITE DURING INSTALLATION. INVOICE OR PACKING SLIP SHOULD LIST SPECIES BYSCIENTIFIC NAME, QUANTITY, AND DATE DELIVERED (AND GENETIC ORIGIN IF THATINFORMATION WAS PREVIOUSLY REQUESTED).DELIVERY, HANDLING, & STORAGENOTIFICATIONCONTRACTOR MUST NOTIFY CONSULTANT 48 HOURS OR MORE IN ADVANCE OF DELIVERIESSO THAT CONSULTANT MAY ARRANGE FOR INSPECTION.PLANT MATERIALS1.TRANSPORTATION - DURING SHIPPING, PLANTS SHALL BE PACKED TO PROVIDEPROTECTION AGAINST CLIMATE EXTREMES, BREAKAGE AND DRYING. PROPERVENTILATION AND PREVENTION OF DAMAGE TO BARK, BRANCHES, AND ROOT SYSTEMSMUST BE ENSURED.2.SCHEDULING AND STORAGE - PLANTS SHALL BE DELIVERED AS CLOSE TO PLANTING ASPOSSIBLE. PLANTS IN STORAGE MUST BE PROTECTED AGAINST ANY CONDITION THAT ISDETRIMENTAL TO THEIR CONTINUED HEALTH AND VIGOR.3.HANDLING - PLANT MATERIALS SHALL NOT BE HANDLED BY THE TRUNK, LIMBS, ORFOLIAGE BUT ONLY BY THE CONTAINER, BALL, BOX, OR OTHER PROTECTIVE STRUCTURE,EXCEPT BAREROOT PLANTS SHALL BE KEPT IN BUNDLES UNTIL PLANTING AND THENHANDLED CAREFULLY BY THE TRUNK OR STEM.4.LABELS - PLANTS SHALL HAVE DURABLE, LEGIBLE LABELS STATING CORRECT SCIENTIFICNAME AND SIZE. TEN PERCENT OF CONTAINER GROWN PLANTS IN INDIVIDUAL POTSSHALL BE LABELED. PLANTS SUPPLIED IN FLATS, RACKS, BOXES, BAGS, OR BUNDLESSHALL HAVE ONE LABEL PER GROUP.WARRANTYPLANT WARRANTYPLANTS MUST BE GUARANTEED TO BE TRUE TO SCIENTIFIC NAME AND SPECIFIED SIZE, ANDTO BE HEALTHY AND CAPABLE OF VIGOROUS GROWTH.REPLACEMENT1.PLANTS NOT FOUND MEETING ALL OF THE REQUIRED CONDITIONS AT THE CONSULTANT'SDISCRETION MUST BE REMOVED FROM SITE AND REPLACED IMMEDIATELY AT THECONTRACTOR'S EXPENSE.2.PLANTS NOT SURVIVING AFTER ONE YEAR TO BE REPLACED AT THE CONTRACTOR'SEXPENSE.PLANT MATERIALGENERAL1.PLANTS SHALL BE NURSERY GROWN IN ACCORDANCE WITH GOOD HORTICULTURALPRACTICES UNDER CLIMATIC CONDITIONS SIMILAR TO OR MORE SEVERE THAN THOSE OFTHE PROJECT SITE.2.PLANTS SHALL BE TRUE TO SPECIES AND VARIETY OR SUBSPECIES. NO CULTIVARS ORNAMED VARIETIES SHALL BE USED UNLESS SPECIFIED AS SUCH.QUANTITIESSEE PLANT LIST ON ACCOMPANYING PLANS AND PLANT SCHEDULES.ROOT TREATMENT1.CONTAINER GROWN PLANTS (INCLUDES PLUGS): PLANT ROOT BALLS MUST HOLDTOGETHER WHEN THE PLANT IS REMOVED FROM THE POT, EXCEPT THAT A SMALLAMOUNT OF LOOSE SOIL MAY BE ON THE TOP OF THE ROOTBALL.2.PLANTS MUST NOT BE ROOT-BOUND; THERE MUST BE NO CIRCLING ROOTS PRESENT INANY PLANT INSPECTED.3.ROOTBALLS THAT HAVE CRACKED OR BROKEN WHEN REMOVED FROM THE CONTAINERSHALL BE REJECTED.PLANT INSTALLATION SPECIFICATIONS AND SCHEDULESPLANT SCHEDULE -TYPE 2 PLANTING AREA / UNDERSTORY INFILL (11,450 SF)PLANT SCHEDULE -TYPE 1 PLANTING AREA / BUFFER RESTORATION (2,180 SF)NOTES1.TREES, SHRUBS AND GROUNDCOVERS TO BE GROUPED BY SPECIESIN GROUPS OF 3-9 AND SPACED TRIANGULARLY.2.SEE SHEET W5 FOR MITIGATION AND PLANT INSTALLATION DETAILS. PROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHW52X MIN DIA. ROOTBALLNOTES:1.PLANTING PIT SHALL NOT BE LESS THAN (2) TIMES THEWIDTH OF THE ROOT BALL DIA.2.LOOSEN SIDES AND BOTTOM OF PLANT PIT3.REMOVE FROM POT & ROUGH-UP ROOT BALL BEFOREINSTALLING. IF PLANT IS EXCEPTIONALLY ROOT-BOUND ORCONTAINS CIRCLING ROOTS, DO NOT PLANT AND RETURNTO NURSERY FOR AN ACCEPTABLE ALTERNATIVE. IF B&BSTOCK, REMOVE ALL TWINE/WIRE, & REMOVE BURLAP FROMTOP 1/3RD OF ROOTBALL PRIOR TO PLANTING (NOTE:CONTAINER STOCK PREFERRED)4.SOAK PLANTING PIT AFTER PLANTING4" COARSE WOOD CHIP MULCH IN ALL PLANTING BEDS.HOLD BACK MULCH FROM TRUNK/STEMS.REMOVE DEBRIS AND LARGE ROCKS AND BACKFILLWITH NATIVE SOIL. FIRM UP SOIL AROUND PLANT.Scale: NTSCONTAINER PLANTINGDMITIGATION AND PLANT INSTALLATION DETAILSPLANTING AREA PREPARATIONSTEP 1REMOVE NON-NATIVE PLANTSPECIES. WORK WITHIN EXISTINGTREE ROOT ZONES SHALL BE DONEBY HAND.STEP 2PLACE 0.13 CF / 1 GALLON OFCOMPOST PER PLANTING PIT ANDMIX WITH EXCAVATED SOIL.STEP 3LEAVE MINIMUM ONE (1) INCH LAYEROF AMENDED SOIL AT THE BOTTOMOF THE PIT THEN INSTALL PLANT (SEEPLANTING DETAIL). BACKFILL WITHAMENDED SOIL.STEP 4INSTALL MULCH LAYER FOUR (4)INCHES DEEP. HOLD BACK MULCHFROM TRUNKS / STEMS.EXISTINGSEQUENCE OF WORK - NOT TO SCALESTEP 14"ROOTBALLDEPTH2X MIN DIAROOTBALLSTEP 2STEP 3STEP 42" COMPOSTPITAMEND4" WOODCHIPMULCH18" MIN. 4"12"3'-0" 6"8'-0" MAX.6"FINISHED GRADECOMPACTEDGRAVEL BASE. NOCONCRETE IS TOBE PLACED INSENSITIVE AREAS.COMPACTEDSUBGRADE6" x 6" ROUGH CUT CEDAR POSTNOTCHED TO CONTAIN ANDCONCEAL RAIL CONNECTION2" X 6" ROUGH CUTCEDAR RAILSScale: NTSMITIGATION AREA SITE PREPARATIONCScale: NTSSPLIT RAIL FENCEBScale: NTSCOIR LOGAEROSION CONTROL COIR FIBER LOGS(BIODEGRADEABLE)ENTRENCH COIR LOG 5-7 INCHESOR 1/2 - 2/3 INTO SUBGRADEUNTREATED 34" X 34" X 24" WOOD STAKESTAKE THROUGH CENTER OF COIR LOGFLOWACCUMULATED SEDIMENT, ORGANICMATTER, NATIVE SEEDS, ETC.NOTE: INSTALL COIR LOGS PARALLEL TO SLOPE CONTOUR PERSURFACE WATER DESIGN MANUAL - APPENDIX D (D.2.1.2.5) PROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHMITIGATION PLAN NOTESW7MITIGATION PLAN NOTESMITIGATION PLANTHIS PLAN HAS BEEN PREPARED AS MITIGATION FOR IMPACTS TO ON-SITE CRITICAL AREABUFFERS. THE PROPERTY IS ENTIRELY ENCUMBERED BY STREAM AND WETLAND BUFFERS.PERMANENT BUFFER IMPACTS WILL OCCUR WITH THE CONSTRUCTION OF A SINGLE FAMILYRESIDENCE, TO BE PERMITTED THROUGH THE REASONABLE USE EXCEPTION PROCESS. THEPROPOSED DEVELOPMENT AREA WILL IMPACT A TOTAL OF 4,455 SQUARE FEET WITHIN CRITICALAREA BUFFERS. THE MITIGATION PLAN SEEKS TO ENHANCE A SUBSTANTIAL PORTION OF ON-SITESTREAM AND WETLAND BUFFERS.TO OFFSET PROJECT IMPACTS, THE PLAN CALLS FOR THE ENHANCEMENT OF A TOTAL OF 13,465SQUARE FEET OF STREAM AND WETLAND BUFFERS. 2,230 SQUARE FEET OF BUFFER AREA WILL BEENHANCED THROUGH THE REMOVAL OF NON-NATIVE PLANTS AND PLANTING OF NATIVE TREES,SHRUBS AND GROUNDCOVER. TREE SPECIES PROPOSED INCLUDE WESTERN RED CEDAR ANDAND WESTERN HEMLOCK. SHRUBS INCLUDE VINE MAPLE, BEAKED HAZELNUT, OSOBERRY, REDFLOWERING CURRANT, NOOTKA ROSE, SALMONBERRY, SNOWBERRY, AND EVERGREENHUCKLEBERRY. PROPOSED GROUNDCOVERS INCLUDE SALAL, DULL OREGON GRAPE, ANDWESTERN SWORDFERN. THE REMAINING 11,235 SQUARE FEET OF BUFFER ON THE PROPERTYWILL BE ENHANCED WITH THE INFILL PLANTING OF CONIFERS INCLUDING WESTERN RED CEDARAND AND WESTERN HEMLOCK. THIS AREA IS CURRENTLY DOMINATED BY RED ALDER ANDSALMONBERRY AND GENERALLY LACKS CONIFER COVER. OVERALL, A TOTAL OF 70 TREES, 88SHRUBS, AND 180 GROUNDCOVER PLANTS COMPRISING THESE SPECIES WILL BE INSTALLED.MAINTENANCE AND MONITORING PLANTHE SITE SHALL BE MAINTAINED AND MONITORED FOR FIVE YEARS FOLLOWING SUCCESSFULINSTALLATION. COMPONENTS OF THE 5-YEAR MAINTENANCE AND MONITORING PLAN AREDETAILED BELOW.GOALS1.ESTABLISH DENSE NATIVE VEGETATION THAT IS APPROPRIATE TO THE ECO-REGION AND SITE.2.LIMIT INVASIVE AND/OR NOXIOUS WEED COVER ON-SITE.3.INCREASE HABITAT COVER AND REFUGE FOR URBAN WILDLIFE SPECIES. PROVIDE PERCHING,NESTING AND FORAGING HABITAT FOR NATIVE BIRDS.PERFORMANCE STANDARDSTHE STANDARDS LISTED BELOW WILL BE USED TO JUDGE THE SUCCESS OF THE INSTALLATIONOVER TIME. IF PERFORMANCE STANDARDS ARE MET AT THE END OF YEAR 5, THE SITE WILL THENBE DEEMED SUCCESSFUL AND THE PERFORMANCE SECURITY BOND WILL BE ELIGIBLE FORRELEASE BY THE CITY OF FEDERAL WAY.1.SURVIVAL: THIS STANDARD CAN BE MET THROUGH PLANT ESTABLISHMENT OR THROUGHREPLANTING IN THE FOLLOWING DORMANT SEASON AS NECESSARY TO ACHIEVE THEREQUIRED NUMBERS.A.ACHIEVE 100% SURVIVAL OF ALL INSTALLED PLANTS BY THE END OF YEAR 1 (FROM DATE OFPLANT INSTALLATION).B.ACHIEVE 90% SURVIVAL OF ALL INSTALLED PLANTS BY THE END OF YEAR 2 (FROM DATE OFPLANT INSTALLATION).C.ACHIEVE 85% SURVIVAL OF ALL INSTALLED CONIFER TREES BY THE END OF YEAR 3, 4, AND5 (FROM DATE OF PLANT INSTALLATION).2.NATIVE PLANT COVER:A.ACHIEVE 40% COVER OF NATIVE TREES, SHRUBS AND GROUNDCOVER IN TYPE 1 PLANTINGAREA BY YEAR 2. NATIVE VOLUNTEER SPECIES MAY COUNT TOWARDS THIS COVERSTANDARD.B.ACHIEVE 60% UNDERSTORY COVER OF NATIVE SAPLING TREES, SHRUBS ANDGROUNDCOVER IN TYPE 1 PLANTING AREABY YEAR 3. NATIVE VOLUNTEER SPECIES MAYCOUNT TOWARDS THIS COVER STANDARD.C.ACHIEVE 80% UNDERSTORY COVER OF NATIVE SAPLING TREES, SHRUBS ANDGROUNDCOVER IN TYPE 1 PLANTING AREA BY YEAR 5. NATIVE VOLUNTEER SPECIES MAYCOUNT TOWARDS THIS COVER STANDARD.3.SPECIES DIVERSITY: ESTABLISH AT LEAST TWO NATIVE TREE, SIX NATIVE SHRUB, AND TWONATIVE GROUNDCOVER SPECIES BY YEAR 3 AND MAINTAIN THIS DIVERSITY THROUGH YEAR 5.NATIVE VOLUNTEER SPECIES MAY COUNT TOWARDS THIS STANDARD. EXISTING VEGETATIONDOES NOT COUNT TOWARD THIS DIVERSITY STANDARD.4.INVASIVE COVER: AREAL COVER FOR ALL NON-NATIVE, INVASIVE AND NOXIOUS WEEDS WILLNOT EXCEED 10% AT ANY YEAR DURING THE MONITORING PERIOD. INVASIVE PLANTS INCLUDEBUT ARE NOT LIMITED TO HIMALAYAN BLACKBERRY (RUBUS ARMENIACUS), CUT LEAFBLACKBERRY (RUBUS LACINIATUS), KNOTWEEDS (POLYGONUM CUSPIDATUM AND OTHERS),REED CANARYGRASS (PHALARIS ARUNDINACEA), CHERRY LAUREL (PRUNUS LAUROCERASUS),ENGLISH HOLLY (ILEX AQUIFOLIUM), AND IVY SPECIES (HEDERA SPP.).MONITORING METHODSTHIS MONITORING PROGRAM IS DESIGNED TO TRACK THE SUCCESS OF THE MITIGATION SITEOVER TIME AND TO MEASURE THE DEGREE TO WHICH THE SITE IS MEETING THE PERFORMANCESTANDARDS OUTLINED IN THE PRECEDING SECTION.AN AS-BUILT PLAN WILL BE PREPARED BY THE RESTORATION PROFESSIONAL PRIOR TO THEBEGINNING OF THE MONITORING PERIOD. THE AS-BUILT PLAN WILL BE A MARK-UP OF THEPLANTING PLANS INCLUDED IN THIS PLAN SET. THE AS-BUILT PLAN WILL DOCUMENT ANYDEPARTURES IN PLANT PLACEMENT OR OTHER COMPONENTS FROM THE PROPOSED PLAN.MONITORING WILL TAKE PLACE ONCE ANNUALLY IN THE FALL FOR FIVE YEARS. YEAR-1MONITORING WILL COMMENCE IN THE FIRST FALL SUBSEQUENT TO INSTALLATION.THE FORMAL MONITORING VISIT SHALL RECORD AND REPORT THE FOLLOWING IN AN ANNUALREPORT SUBMITTED TO THE CITY OF BELLEVUE:1.VISUAL ASSESSMENT OF THE OVERALL MITIGATION AREA.2.YEAR-1 COUNTS OF LIVE AND DEAD PLANTS BY SPECIES. YEAR-2 THROUGH YEAR-5 COUNTS OFESTABLISHED NATIVE TREES AND SHRUBS BY SPECIES, TO THE EXTENT FEASIBLE.3.COUNTS OF DEAD PLANTS WHERE MORTALITY IS SIGNIFICANT IN ANY MONITORING YEAR.4.ESTIMATE OF NATIVE COVER IN THE MITIGATION AREA.5.ESTIMATE OF NON-NATIVE, INVASIVE WEED COVER IN THE MITIGATION AREA.6.TABULATION OF ESTABLISHED NATIVE SPECIES, INCLUDING BOTH PLANTED AND VOLUNTEERSPECIES.7.PHOTOGRAPHIC DOCUMENTATION FROM AT LEAST THREE FIXED REFERENCE POINTS.8.ANY INTRUSIONS INTO OR CLEARING OF THE PLANTING AREAS, VANDALISM, OR OTHERACTIONS THAT IMPAIR THE INTENDED FUNCTIONS OF THE MITIGATION AREA.9.RECOMMENDATIONS FOR MAINTENANCE OR REPAIR OF ANY PORTION OF THE MITIGATIONAREA.MAINTENANCETHE SITE WILL BE MAINTAINED IN ACCORDANCE WITH THE FOLLOWING INSTRUCTIONS FOR ATLEAST FIVE YEARS FOLLOWING COMPLETION OF CONSTRUCTION:1.FOLLOW THE RECOMMENDATIONS NOTED IN THE PREVIOUS MONITORING SITE VISIT.2.GENERAL WEEDING FOR ALL PLANTED AREAS:A.AT LEAST TWICE YEARLY, REMOVE ALL COMPETING WEEDS AND WEED ROOTS FROMBENEATH EACH INSTALLED PLANT AND ANY DESIRABLE VOLUNTEER VEGETATION TO ADISTANCE OF 18 INCHES FROM THE MAIN PLANT STEM. WEEDING SHOULD OCCUR AT LEASTTWICE DURING THE SPRING AND SUMMER. FREQUENT WEEDING WILL RESULT IN LOWERMORTALITY, LOWER PLANT REPLACEMENT COSTS, AND INCREASED LIKELIHOOD THAT THEPLAN MEETS PERFORMANCE STANDARDS BY YEAR 5.B.MORE FREQUENT WEEDING MAY BE NECESSARY DEPENDING ON WEED CONDITIONS THATDEVELOP AFTER PLAN INSTALLATION.C.DO NOT WEED THE AREA NEAR THE PLANT BASES WITH STRING TRIMMER (WEEDWHACKER/WEED EATER). NATIVE PLANTS ARE EASILY DAMAGED OR KILLED, AND WEEDSEASILY RECOVER AFTER TRIMMING.D.SELECTIVE APPLICATIONS OF HERBICIDE MAY BE NEEDED TO CONTROL INVASIVE WEEDS,ESPECIALLY WHEN INTERMIXED WITH NATIVE SPECIES. HERBICIDE APPLICATION, WHENNECESSARY, SHALL BE CONDUCTED ONLY BY A STATE-LICENSED APPLICATOR.3.APPLY SLOW-RELEASE, GRANULAR FERTILIZER TO EACH INSTALLED PLANT ANNUALLY IN THESPRING (BY JUNE 1) OF YEARS 2 THROUGH 5.4.REPLACE MULCH AS NECESSARY TO MAINTAIN A 4-INCH-THICK LAYER, RETAIN SOIL MOISTURE,AND LIMIT WEEDS.5.REPLACE EACH PLANT FOUND DEAD IN THE SUMMER MONITORING VISITS DURING THEUPCOMING DORMANT SEASON (OCTOBER 15 TO MARCH 1), FOR BEST SURVIVAL.6.THE PROPERTY OWNER WILL ENSURE THAT WATER IS PROVIDED FOR THE ENTIRE PLANTEDAREA WITH A MINIMUM OF 1 INCH OF WATER PER WEEK FROM JUNE 1 THROUGH SEPTEMBER 30FOR THE FIRST TWO YEARS FOLLOWING INSTALLATION, THROUGH THE OPERATION OF ATEMPORARY IRRIGATION SYSTEM. LESS WATER IS NEEDED DURING MARCH, APRIL, MAY ANDOCTOBER.CONSTRUCTION NOTES AND SPECIFICATIONSTHE RESTORATION PROFESSIONAL WILL MONITOR:1.ALL SITE PREPARATION.A.COIR LOG/STRAW WATTLE INSTALLATION.B.WEED REMOVAL.C.SOIL PREPARATION.D.MULCH PLACEMENT.2.MITIGATION PLANTING ACTIVITES.A.PLANT MATERIAL DELIVERY INSPECTION.B.100% PLANT INSTALLATION INSPECTION.GENERAL WORK SEQUENCESITE PREPARATION1.INSTALL COIR LOG OR STRAW WATTLE PER PLANS.2.MANUALLY CLEAR INVASIVE AND ORNAMENTAL VEGETATION FROM MITIGATION AREA DURINGSPRING AND/OR SUMMER MONTHS (I.E., AVOID CREATING EXPOSED SOIL CONDITIONS DURINGTHE WINTER STORM SEASON).A.REMOVE INVASIVE SPECIES (I.E., HIMALAYAN BLACKBERRY, ENGLISH IVY), IN ACCORDANCEWITH KING COUNTY NOXIOUS WEED BEST MANAGEMENT PRACTICES. FOR MOREINFORMATION:HTTPS://WWW.KINGCOUNTY.GOV/SERVICES/ENVIRONMENT/ANIMALS-AND-PLANTS/NOXIOUS-WEEDS.ASPX.B.CUT UNDESIRABLE VEGETATION. LEAVE ROOTS INTACT TO MINIMIZE POTENTIAL IMPACTSTO SLOPES ON ADJACENT PROPERTIES.C.FLUSH-CUT ORNAMENTAL WOODY VEGETATION (E.G. ENGLISH HOLLY, NON-NATIVE APPLEOR PLUM) THROUGHOUT MITIGATION AREA AND IMMEDIATELY TREAT STEM (DAUBING ORPAINTING) WITH APPROPRIATE HERBICIDE. PERSON APPLYING HERBICIDE SHALL BESTATE-LICENSED. DO NOT REMOVE SUBSURFACE ROOTS.D.AVOID AND MINIMIZE DISTURBANCE AND/OR COMPACTION TO ROOTS OF ESTABLISHEDNATIVE TREES TO BE RETAINED WHEN REMOVING VEGETATION FROM WITHIN TREEDRIPLINES.3.BLANKET-MULCH CLEARED AREAS WITH WOOD MULCH, FOUR INCHES THICK.A.ENSURE MULCH DOES NOT TOUCH STEMS OF EXISTING (OR INSTALLED) VEGETATION. SEEPLANTING DETAIL ON SHEET W5.MITIGATION PLANTING AND IRRIGATION1.INSTALL MITIGATION PLANTS DURING THE DORMANT SEASON (OCTOBER 15 - MARCH 1).A.PREPARE A PLANTING PIT FOR EACH PLANT THROUGH BLANKET WOOD MULCH AND INSTALLPER THE PLANTING DETAILS.2.INSTALL A TEMPORARY, ABOVE GROUND IRRIGATION SYSTEM TO PROVIDE FULL COVERAGE TO ALL INSTALLED PLANTS WITHIN THE RESTORATION AREA.MATERIAL SPECIFICATIONS AND DEFINITIONS1.FERTILIZER (FOR NEAR AQUATIC ENVIRONMENTS): SLOW-RELEASE, PHOSPHOROUS-FREEGRANULAR FERTILIZER. LABEL MUST INDICATE THAT PRODUCT IS SAFE FOR AQUATICENVIRONMENTS. FOLLOW MANUFACTURER'S INSTRUCTIONS FOR USE. KEEP FERTILIZER INWEATHER-TIGHT CONTAINER WHILE ON-SITE. FERTILIZER IS ONLY TO BE APPLIED IN YEARS 2AND 3, NOT IN YEAR ONE.2.IRRIGATION SYSTEM: AUTOMATED SYSTEM CAPABLE OF DELIVERING AT LEAST ONE INCH OFWATER PER WEEK FROM JUNE 1 THROUGH SEPTEMBER 30 FOR THE FIRST TWO YEARSFOLLOWING INSTALLATION.3.RESTORATION PROFESSIONAL: WATERSHED COMPANY [(425) 822-5242] PERSONNEL, OR OTHERPERSONS QUALIFIED TO EVALUATE ENVIRONMENTAL RESTORATION PROJECTS.4.WOODCHIP MULCH: “ARBORIST CHIPS” (CHIPPED WOODY MATERIAL) APPROXIMATELY ONE TOTHREE INCHES IN MAXIMUM DIMENSION (NOT SAWDUST). THIS MATERIAL IS COMMONLYAVAILABLE IN LARGE QUANTITIES FROM ARBORISTS OR TREE-PRUNING COMPANIES. MULCHSHALL NOT CONTAIN APPRECIABLE QUANTITIES OF GARBAGE, PLASTIC, METAL, SOIL, ANDDIMENSIONAL LUMBER OR CONSTRUCTION/DEMOLITION DEBRIS.5.COMPOST: COMPOST SHALL MEET WSDOT STANDARDS SPECIFICATIONS FOR ROAD, BRIDGE,AND MUNICIPAL CONSTRUCTION, 9-14.4(8) FOR FINE COMPOST.CONTINGENCIESIF THERE IS A SIGNIFICANT PROBLEM WITH THE RESTORATION AREAS MEETING PERFORMANCESTANDARDS, A CONTINGENCY PLAN WILL BE DEVELOPED AND IMPLEMENTED. CONTINGENCYPLANS CAN INCLUDE, BUT ARE NOT LIMITED TO: SOIL AMENDMENT, ADDITIONAL PLANTINSTALLATION, AND PLANT SUBSTITUTIONS OF TYPE, SIZE, QUANTITY, AND LOCATION. EXISTING CONDITIONSPARCEL BOUNDARYDELINEATED WETLAND BOUNDARYAPPROXIMATE WETLAND BOUNDARYDELINEATED OHWMSTREAM BUFFER (35')SIGNIFICANT TREEPROPOSED CONDITIONSLIMITS OF DEVELOPMENT / CONSTRUCTIONCRITICAL ROOT ZONECRITICAL ROOT ZONE IMPACTTREE PROPOSED FOR REMOVAL (2)TREE PROTECTION FENCINGGAR. SLAB - 176.0'MAIN FLOOR - 171.0'BASEMENT - 161.0'DECK2-CAR GARAGEPROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHTREE RETENTION AND REMOVAL PLANW7LEGENDS 293RD STNOTES1.TREE INVENTORY COMPLETED BY THE WATERSHED COMPANY ONJULY 1, 2020 (750 6TH STREET SOUTH; KIRKLAND, WA 98033;425-9822-5242). SEE ARBORIST REPORT BY THE WATERSHEDCOMPANY (DATED AUGUST 17, 2020) FOR FURTHER DETAILS.2.TREE NUMBERS WITH AN ASTERISK WERE NOT SURVEYED; LOCATIONIS APPROXIMATE.3.TREE PROTECTION FENCING IS SHOWN OFFSET FROM PROPOSEDLIMITS OF DEVELOPMENT / CONSTRUCTION FOR VISUAL CLARITYPURPOSES ONLY.4.SEE SHEET W8 FOR TREE RETENTION AND REMOVAL DETAILS.SCALE 1:1040'10'5'0'20'PROPOSEDSINGLE FAMILYRESIDENCEPROPOSEDDRIVEWAYWETLAND A,CATEGORY II(150' BUFFER)STREAM A,TYPE Ns(35' BUFFER)130113021303130413051306130713091310131213151320132113221327132613231324131413131340133813371333133213391328132913301308*1316*1317*1318*13191325*1331*1334*13361335*PROPOSEDDECK35'STREAMBUFFERAW851411791*2*3*6*15*11*10*12*13*178*4*16*18*EAVEOVERHANG (1)NO CLEARING SHALL BE ALLOWED ON A PROPOSED DEVELOPMENT SITE UNTIL THE TREE RETENTION AND LANDSCAPE PLANS HAVE BEEN APPROVED BY THECITY OF FEDERAL WAY.(2)A NO DISTURBANCE AREA SHALL BE ESTABLISHED FOR EACH TREE TO BE PROTECTED. THE NO DISTURBANCE ZONE SHALL BE EQUAL TO THE CRITICAL ROOTZONE WHICH IS DEFINED AS 12 INCHES RADIUS FOR EVERY ONE INCH OF TREE DIAMETER MEASURED AT FOUR AND ONE-HALF FEET ABOVE GROUND. ANYOTHER NO DISTURBANCE AREA PROPOSED BY THE APPLICANT SHALL BE DETERMINED BY A QUALIFIED ARBORIST AND SUBJECT TO REVIEW AND APPROVALBY THE DIRECTOR.(3)THE NO DISTURBANCE ZONE SHALL BE IDENTIFIED DURING THE CONSTRUCTION STAGE WITH:(a)A TEMPORARY FIVE-FOOT CHAIN-LINK FENCE; AND(b)TREE PROTECTION SIGNAGE ATTACHED TO THE FENCE WHICH READS “TREE PROTECTION FENCE - NO SOIL DISTURBANCE, PARKING, STORAGE, DUMPING,OR BURNING OF MATERIALS IS ALLOWED WITHIN THE TREE PROTECTION FENCE.”(4)NO SOIL DISTURBANCE, PARKING, STORAGE, DUMPING, BURNING OF MATERIALS, IMPERVIOUS SURFACES, FILL, EXCAVATION, OR STORAGE OFCONSTRUCTION MATERIALS SHALL BE PERMITTED WITHIN THE NO DISTURBANCE AREA.(5)IF THE GRADE LEVEL AROUND THE TREE IS TO BE RAISED BY MORE THAN ONE FOOT, A ROCK WELL SHALL BE CONSTRUCTED. THE INSIDE DIAMETER OF THEROCK WELL SHALL BE EQUAL TO THE DIAMETER OF THE TREE TRUNK PLUS 10 FEET. PROPER DRAINAGE, AND IRRIGATION IF NECESSARY, SHALL BEPROVIDED IN ALL ROCK WELLS.(6)THE GRADE LEVEL SHALL NOT BE LOWERED WITHIN THE LARGER OF THE DRIP LINE OF THE TREE(S) OR THE CRITICAL ROOT ZONE OF THE TREE(S).(7)NO TRENCHING IS ALLOWED IN ANY CRITICAL TREE ROOT ZONE AREAS.(8)NO INSTALLATION OF ANY IMPERVIOUS SURFACES IS ALLOWED IN CRITICAL ROOT ZONES. WHERE ROAD OR SIDEWALK SURFACES ARE NEEDED WITHINCRITICAL ROOT ZONES, UNMORTARED POROUS PAVERS OR FLAGSTONE (RATHER THAN CONCRETE OR ASPHALT) MAY BE USED. BOARDWALKS OR BRIDGINGMAY SPAN ROOT ZONES WITHOUT HARMING THE TREE ROOTS.(9)TREE PROTECTION AREAS (I.E., CRITICAL ROOT ZONE) MUST BE PREPARED TO BETTER WITHSTAND THE STRESSES OF THE CONSTRUCTION PHASE BY, IFNECESSARY, FERTILIZING, PRUNING, AND MULCHING AROUND THEM WELL IN ADVANCE OF BEGINNING ANY CONSTRUCTION ACTIVITIES.(10)ALTERNATIVE PROTECTION METHODS MAY BE USED IF ACCEPTED BY THE DIRECTOR TO PROVIDE EQUAL OR GREATER TREE PROTECTION.(11)ENCROACHMENT INTO THE NO DISTURBANCE AREA MAY BE ALLOWED WHERE THE DIRECTOR DETERMINES ENCROACHMENT WOULD NOT BE DETRIMENTALTO THE HEALTH OF THE TREE.5'-0"TREE PROTECTION FENCE:CHAIN-LINK FENCING, STEELPOSTS INSTALLED AT 8' O.C.5" THICK LAYEROF MULCH.MAINTAIN EXISTINGGRADE WITH THE TREEPROTECTION FENCEUNLESS OTHERWISEINDICATED ON THE PLANS.8.5" x 11" SIGNLAMINATED IN PLASTICSPACED EVERY 50'ALONG FENCE.SECTION221.70'CRITICAL ROOT ZONE OR OTHER LIMIT OF TREE PROTECTIONAREA. SEE SHEET W7 FOR FENCE ALIGNMENT.NOTES:1. NO PRUNING SHALL BE PERFORMED UNLESSUNDER THE DIRECTION OF AN ARBORIST.2.NO EQUIPMENT SHALL BE STORED OROPERATED INSIDE THE PROTECTIVEFENCING INCLUDING DURING FENCEINSTALLATION AND REMOVAL.3. NO STORAGE OF MATERIALS SHALL OCCURINSIDE THE PROTECTIVE FENCING.4. UNAUTHORIZED ACTIVITIES IN TREEPROTECTION AREA MAY REQUIREEVALUATION BY PRIVATE ARBORIST TOIDENTIFY IMPACTS AND MITIGATIONREQUIRED.5. EXPOSED ROOTS: FOR ROOTS GREATERTHAN 1" DAMAGED DURING CONSTRUCTION,MAKE A CLEAN, STRAIGHT CUT TO REMOVEDAMAGED PORTION AND INFORM CITYARBORIST.TREEPROTECTIONFENCEPROJECT MANAGER: DESIGNED: DRAFTED: CHECKED:SHEET SIZE:ORIGINAL PLAN IS 22" x 34".SCALE ACCORDINGLY.BY© 2020 - The Watershed CompanyDATE PRINTED BY FILENAME THEWATERSHEDCOMPANYS c i e n c e & D e s i g n750 Sixth Street SouthKirkland WA 98033p 425.822.5242www.watershedco.comJOB NUMBER:SHEET NUMBER:SUBMITTALS & REVISIONS DESCRIPTIONDATENO. PERMIT SET - NOT FOR CONSTRUCTION FEDERAL WAY AFICHUK RUE MITIGATION PLAN PREPARED FOR: STAN AFICHUK 1XX S 293RD STREET PARCEL # 7202500080 FEDERAL WAY, WA 98023GBRHRHAMC, GB191123OF 81 10/29/2020 MITIGATION PLAN RHW8TREE RETENTION AND REMOVAL DETAILSScale: NTSTREE PROTECTION FENCINGANOTES1.SEE SHEET W7 FOR TREE RETENTION AND REMOVAL PLAN.2.IMPACTS ARE NOT ANTICIPATED WITHIN CRITICAL ROOT ZONES OFSIGNIFICANT TREES LOCATED OFF-PARCEL.TREE RETENTION AND REMOVAL TABLEFWMC 19.120.160 TREE AND VEGETATION PROTECTION DURING CONSTRUCTION