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Civil Submittal 1 - Vegetation Plan recd 1-4-19.pdfa' 3 10 tt 0 ,I GARAGE FF=107.5' J � 14 F40HOUSE " FF=104.7• I� r: ION POSTS FF-112.6• /METAL FENCE LOT 1 3 ±20,000 IONC RUB 4 gLOG��� p,LE 8 38 In 3 p051330 0,, _w HOUSE 'q FF=142.1', . LOT 2 -" GARAGE - t26,811 FF=133.d - ' TYPE UNKNOWN N87�40.31"W 56960_ 1 r __= ST S VEGETATION RETENTION AND ENHANCEMENT PLAN SCALE: 1" = 30'-0" E PAN MEPOOEM�N PG q2 / IP IN� 10-C ---24"-A 52" M \ REMOVE ALL HIMALAYAN \ l0•'-M S—BERRY(HBIRANO \ OTHER INVASIVE 12' H \ NATIVE VEGETATION RETENTION AREA = 20,170 S.F. 0 CH— k LOT V ■I���\� pp��I,III\�� 142.5 __..■.■u�1111111,,,1111111\111►,/,1r►'),1,//1h _ 31 0 90 00 Feei ® SHEET SIZE IS 34"X22". ADJUST SCALE ACCORDINGLY. PLANTING SCHEDULE SCIENTIFIC NAME COMMON NAME TYPE SPACING QTY TREES ACER CIRCINATUM VINE MAPLE 1 GAL. 18' O. C. 5 ARBUTUS MENZIESII PACIFIC MADRONE 1 GAL. 18, O. C. 5 PSEUDOTSUGA MENZIESII DOUGLAS-FIR 1 GAL. 18, O. C. 5 PINUS CONTORTA SHORE PINE 1 GAL. 18' O.C. 5 THUJA PLICATA WESTERN REDCEDAR 1 GAL. 18' O.C. 5 SHRUBS GAULTHERIA SHALLON SALAL 1 GAL. 8' O.C. 15 HOLODISCUS DISCOLOR OCEANSPRAY 1 GAL. 8' O.C. 12 RIBES SANGUINEUM RED -FLOWERING CURRANT 1 GAL. 8' O.C. 12 SYMPHORICARPOS ALBUS COMMON SNOWBERRY 1 GAL. 8' O.C. 12 VACCINIUM OVATUM EVERGREEN HUCKLEBERRY 1 GAL. 8' O.C. 12 NOTES: 1. SEE SHEET 2 FOR PLANTING DETAILS AND PROJECT WORK SEQUENCE. 2. LOCATIONS OF INVASIVE REMOVAL AND PLANTING AREA ARE ESTIMATED ONLY. ADJUST WORK AREAS BASED ON FIELD CONDITIONS OR AS DIRECTED BY OWNER'S REPRESENTATIVE. 3. SITE IS LOCATED ON STEEP SLOPE AND HAS LIMITED ACCESS. CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING NECESSARY EROSION CONTROL MEASURES TO ENSURE SLOPE STABILITY DURING CONSTRUCTION. 4. CONTRACTOR SHALL REMOVE ALL EROSION CONTROL MEASURES UPON FINAL ACCEPTANCE, AND RESTORE SITE TO PRE -CONSTRUCTION CONDITIONS. NOTES: 1. INSTALL PLANTS AT SPECIFIED DISTANCE ON -CENTER (O.C.) PER PLANTING SCHEDULE. 2. LOOSEN SIDES AND BOTTOM OF PLANTING PIT AND REMOVE DEBRIS 3. LOOSEN ROOTBOUND PLANTS BEFORE INSTALLING 4. SOAK PIT BEFORE AND AFTER INSTALLING PLANT 4" MULCH LAYER. HOLD BACK MULCH FROM STEMS AMEND NATIVE SOIL WITH ONE STANDARD SHOVEL FULL OF ORGANIC COMPOST PER PLANTING PIT. 01 TYPICAL PLANTING DETAIL VEGETATION MANAGEMENT AND MONITORING NOTES SUMMARY VEGETATION RETENTION AND ENHANCEMENT IS DETAILED ON THIS PLAN SHEET (SHEET 2). INVASIVE SPECIES IN THE VEGETATION RETENTION AND ENHANCEMENT AREA WILL BE REMOVED AND REPLACED WITH SITE -APPROPRIATE NATIVE SPECIES. GAPS IN THE VEGETATION MANAGEMENT AREA WILL BE DENSELY PLANTED AROUND EXISTING NATIVE SHRUBS AND TREES. ADDITIONAL NATIVE TREES AND SHRUBS ARE PLANTED GENERALLY AT THE DENSITY OF 18-FOOT AND 8-FOOT ON -CENTER, RESPECTIVELY, TO INCREASE DENSITY OF THE EXISTING NATIVE UNDERSTORY. ENHANCED AREA WILL AMOUNT TO 20,170 SQUARE FEET. ENHANCEMENT WILL INCREASE BOTH DENSITY AND STRUCTURAL DIVERSITY OF NATIVE PLANTS IN ALL STRATA. NO NATIVE VEGETATION WILL BE REMOVED. EXISTING SNAGS AND DOWNED WOOD WILL BE RETAINED. ALL WORK WILL BE DONE BY HAND (HAND-HELD MACHINERY ONLY) TO MINIMIZE DISTURBANCE. THE VEGETATION MANAGEMENT AREA WILL UNDERGO MAINTENANCE TWICE YEARLY OR AS NEEDED AND BE SUBJECT TO YEARLY MILESTONES TO MONITOR PERFORMANCE. THE SITE WILL BE MONITORED FOR THREE YEARS OR UNTIL GOALS ARE ACHIEVED. RETENTION AND ENHANCEMENT GOALS 1. GENERAL: MORE THAN 30% NATIVE VEGETATION RETENTION WILL BE ACHIEVED ON THE SITE. 2. REMOVE ANY NON-NATIVE AND INVASIVE SPECIES IN THE VEGETATION RETENTION AND ENHANCEMENT AREA. IN -FILL PLANT ENTIRE VEGETATION RETENTION AND ENHANCEMENT AREA WITH NATIVE SHRUBS AND TREES WHERE NEEDED TO BRING SHRUB AND TREE DENSITY TO 1.5 AND 8 FEET OC, RESPECTIVELY. DEPOSE OF INVASIVE PLANTS OFFSITE. 3. MAINTAIN VEGETATION RETENTION AND ENHANCEMENT AREA FREE OF INVASIVE SPECIES FOR THREE YEARS. 4. MAINTAIN ALL EXISTING NATIVE PLANTS IN THE VEGETATION RETENTION AND ENHANCEMENT AREA. INSTALLATION 1. SITE PREPARATION, INVASIVE PLANT REMOVAL, AND PLANTING WILL BE CONDUCTED UNDER THE GUIDANCE OF A QUALIFIED PROFESSIONAL (MITIGATION SPECIALIST, HABITAT BIOLOGIST, LANDSCAPE ARCHITECT, OR ARBORIST WITH MITIGATION EXPERIENCE). 2. REFER TO GENERAL WORK SEQUENCE FOR INSTALLATION SPECIFICATIONS. MAINTENANCE 1. MAINTENANCE WILL TAKE PLACE TWICE YEARLY (OR AS OFTEN AS NECESSARY), IN SPRING AND FALL, FOR AT LEAST THREE YEARS FOLLOWING INSTALLATION, AND LONGER IF NECESSARY TO ACHIEVE GOALS. 2. INSTALLED PLANTS WILL BE WATERED BY HAND OR OTHER SEMI -MANUAL IRRIGATION SYSTEMS AS NECESSARY FOR 2 YEARS FOLLOWING INSTALLATION, OR UNTIL PLANTS ARE ESTABLISHED. 3. DEAD INSTALLED PLANTS WILL BE REPLACED AS NEEDED DURING FALL MAINTENANCE VISITS. 4. ALL INVASIVE WOODY PLANTS IN THE PLANTING AREAS WILL BE REMOVED DURING MAINTENANCE, INCLUDING ALL PART OF THE PLANTS AND ROOT SYSTEM. 5. NON-NATIVE WEEDS SHALL BE CLEARED FROM THE 18-INCH MULCH RINGS OF ALL INSTALLED PLANTS. 6. APPLY WOOD CHIP MULCH RINGS AROUND INSTALLED PLANTS TO MAINTAIN A THICKNESS OF 4 INCHES AND DIAMETER OF 18 INCHES IN AREA WHERE MULCH IS NEEDED TO ENCOURAGE PLANT ESTABLISHMENT AND MINIMIZE COMPETING NON-NATIVE WEEDS. PERFORMANCE STANDARDS THE VEGETATION RETENTION AND ENHANCEMENT AREA WILL BE MEASURED AGAINST THE FOLLOWING PERFORMANCE STANDARDS. 1. SURVIVAL: a. 90% OF INSTALLED PLANTS WILL BE ALIVE BY THE END OF YEAR 1. PLANTS WILL BE REPLACED AS NEEDED TO ACHIEVE THIS STANDARD. b. AT LEAST 80% SURVIVAL OF INSTALLED PLANTS WILL BE ACHIEVED IN YEARS 2 AND 3. 2. NATIVE WOODY VEGETATION COVER: a. 50% COVER OF NATIVE TREES AND SHRUBS WILL BE ACHIEVED BY YEAR 1 WITHIN THE VEGETATION RETENTION AND ENHANCEMENT AREA. VOLUNTEER PLANTS MAY COUNT TOWARDS THIS COVER STANDARD. b. 80% COVER OF NATIVE TREES AND SHRUBS WILL BE ACHIEVED BY THE END OF YEAR 3. VOLUNTEER PLANTS MAY COUNT TOWARDS THIS COVER STANDARD. NOTE: THE SITE PRESENTLY MEETS THE NATIVE WOODY VEGETATION COVER STANDARD; MEASUREMENT OF COVER WILL BE PERFORMED ONLY IF THE STANDARD IN NOT CLEARLY MET, PER VISUAL ASSESSMENT, IN MONITORING YEARS. 3. NATIVE PLANT DIVERSITY: AT LEAST FIVE NATIVE SHRUB SPECIES WILL BE ESTABLISHED IN THE VEGETATION AREA BY THE END OF YEAR 3. VOLUNTEER PLANTS MAY COUNT TOWARDS THIS STANDARD. 4. INVASIVE COVER: NO MORE THAN 10% COVER BY INVASIVE PLANTS WILL BE PRESENT IN ANY MONITORING YEAR. MONITORING METHODS MONITORING WILL BE CONDUCTED YEARLY AFTER FALL MAINTENANCE. A MONITORING REPORT WILL BE PREPARED AFTER EACH MONITORING VISIT. THE REPORT WILL INCLUDE: 1. COUNTS OF DEAD (INSTALLED) PLANTS; 2. PERCENT SURVIVAL OF INSTALLED PLANTS; 3. PERCENT COVER ESTIMATE, OBTAINED VISUALLY UNLESS SITE COVER DECREASES FROM PRESENT CONDITIONS; 4. SPECIES COUNT OF INSTALLED PLANTS; 5. A VISUAL ASSESSMENT OF PLANT HEALTH; 6. A VISUAL ESTIMATE OF INVASIVE PLANT COVER; 7. SITE PHOTOS TAKEN AT ESTABLISHED PHOTO POINTS; 8. NOTES ON SITE DISTURBANCE, LITTER, VANDALISM, OR OTHER ACTIONS THAT MAY IMPAIR HABITAT FUNCTION; AND 9. RECOMMENDATIONS FOR MAINTENANCE AND/OR REPLANTING AS NECESSARY TO ACHIEVE PERFORMANCE STANDARDS. GENERAL WORK SEQUENCE 1. REMOVE ALL PARTS OF INVASIVE PLANTS IN ALL INDICATED AREAS AND DISPOSE MATERIAL OFF -SITE. HAND-HELD MACHINERY OR GLYPHOSATE BASED HERBICIDE USAGE ARE LIMITED AND MIGHT REQUIRE ADDITIONAL PERMITS TO BE OBTAINED BY THE CONTRACTOR. 2. INSTALL PLANTS ACCORDING TO THE DENSITY AND TYPICAL PLANTING DETAIL AS SHOWN ON THIS SHEET DURING FROST -FREE, DORMANT GROWING SEASON (SEPTEMBER THROUGH MARCH) ONLY. 3. WATER EACH PLANT THOROUGHLY BY HAND/HOSE TO REMOVE AIR POCKETS. 4. INSTALL A 4-INCH-THICK LAYER OF COARSE WOOD CHIP MULCH AROUND THE BASE OF EACH INSTALLED PLANT IN AN 18-INCH-DIAMETER CIRCLE. MULCH SHOULD NOT TOUCH PLANT STEMS. NOTE: WHERE PRESENT MOISTURE AND WEED CONDITIONS ARE SUCH THAT MULCH IS NOT NEEDED, MULCH MAY BE EXCLUDED AS LONG AS PERFORMANCE STANDARDS ARE MET. CONTINGENCY PLAN IF PERFORMANCE STANDARDS ARE NOT MET BY THE END OF THE MONITORING PERIOD, A QUALIFIED PROFESSIONAL WILL EVALUATE THE SITE FOR CAUSES OF FAILURE AND MAKE RECOMMENDATIONS FOR REMEDIATION. MONITORING WILL CONTINUE UNTIL PERFORMANCE STANDARDS ARE MET. NOTES 1. THE VEGETATION RETENTION AND ENHANCEMENT AREA WILL BE PRESERVED FOR THE LIFE OF THE PROJECT. 2. MINOR SPECIES SUBSTITUTIONS MAY BE MADE IN THE FIELD. 3. ONLY HEALTHY PLANT MATERIALS WILL BE INSTALLED. 4. ACTIONS AND ACTIVITIES WILL BE CONDUCTED IN ACCORDANCE WITH THE DETAILS OF THE VEGETATION MANAGEMENT PLAN.