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20-104332-UP-Tree Retention Plan-11-06-2020-V2EXISTING 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 FENCING)#45.#$Ä/#+0(.114Ä$#5'/'06Ä&'%-Ä%#4)#4#)'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 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