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HomeMy WebLinkAbout20220887 Ver 1_More Info Received_20220902CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. <mailto:report.spam@nc.gov> Hi Colleen, Thanks for your phone call this morning to clarify the vegetation monitoring requirements. Please see our responses below in blue. Jennifer Jennifer Burdette Natural Resource Consultants New Address: 308 W Millbrook Rd, Ste D #200, Raleigh, NC 27609 burdette@nrconsultnc.com <mailto:burdette@nrconsultnc.com> – 919.422.3605 From: Cohn, Colleen M <colleen.cohn@ncdenr.gov> Sent: Friday, August 26, 2022 5:12 PM To: Jennifer Burdette <burdette@nrconsultnc.com> Cc: George.L.Phillips@usace.army.mil Subject: Dogwood Stream Restoration DWR#20220887 Good afternoon! I am beginning my review of the above referenced project, and some additional information is required to complete the review: 1. If the US Army Corps of Engineers requests any additional information, please provide the Division with a copy of your response. [15A NCAC 02H .0502(c)] We have not received a request for additional information from the USACE. If received, we will copy you on the response as requested. 2. Typically I see a 5-year monitoring plan, especially when riparian buffer is being replanted. Please provide additional information on why only a year (plus two bankfull events) monitoring plan is being proposed. [15A NCAC 02H .0502(c)] As we discussed, please see the attached Revised Monitoring Plan with visual vegetation monitoring annually for three years after planting. 3. Additionally, I would like to see more details regarding what will be planted in the buffer. Under “Species Selection” of the planting plan, it states that a written list of the actual species installed must be delivered to the designer for review before final approval. Will a copy of this list, and a map of plantings, also be provided to DWR? [15A NCAC 02B .02H .0502(c)] Attached is an updated planting plan from the construction drawings that lists the number and species that will planted. Thanks, Colleen Cohn Environmental Specialist II North Carolina Department of Environmental Quality Division of Water Resources Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Office: 919-791-4258 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. REVISED MONITORING PLAN > DOGWOOD 2905 Meridian Parkway, Durham, NC 27713 / 919. 361. 5000 creating experiences through experience MONITORING PLAN The monitoring plan to evaluate the success of the Site is based the U.S. Army Corps of Engineers (USACE) Stream Mitigation Guidelines (2016) and the North Carolina Ecosystem Enhancement Program (NCEEP) Monitoring Requirements and Performance Standards for Stream and/or Wetland Mitigation (November, 2011). Monitoring of the stream and site will occur for one (1) full year, and then after two (2) bankfull events. A monitoring report will be generated for each monitoring year documenting the activities at the Site. After one year and two bankfull events, visual monitoring of the buffer will continue annually to ensure vegetation survival for three years after planting. STREAM MONITORING Stream geometry will be considered successful if the geometry, profile, and sinuosity are stable or reach a dynamic equilibrium. It is expected that there will be minimal changes in the designed cross sections, profile, and/or substrate composition. Changes that may occur during the monitoring period will be evaluated to determine if they represent a movement toward a more unstable condition (e.g. down cutting, or bank erosion) or are minor changes that represent an increase in stability (e.g. settling, vegetative changes, coarsening of bed material, etc.). Deviation from the design ratios will not necessarily denote failure as it is possible to maintain stability and not stay within the design geometry. BANKFULL EVENTS The occurrence of bankfull events within the monitoring period will be documented using a crest gage and photographs. A crest gage will be installed which will record the highest watermark between site visits. The crest gage will be checked each time there is a site visit to determine if a bankfull event has occurred. Photographs will be used to document the occurrences of debris lines and sediment deposition on the floodplain during monitoring site visits. The monitoring period must cover at least three (3) bankfull events. CROSS SECTIONS A total of four (4) cross sections will be installed after construction of the Site and will be surveyed as part of the As- built survey, one (1) year after construction, and then after two (2) bankfull events. Each cross section will be marked on both banks with permanent pins/monuments to establish the exact transect used. A common benchmark will be used for the cross sections and it will be consistently used to facilitate easy comparison of year to year data. The cross section survey will include points measured at all breaks in slope, including top of bank, bankfull, inner berm, edge of water, and thalweg, if the features are present. There will be two (2) riffle cross sections and two (2) pool cross sections. Pebble counts shall be completed at each of the riffle cross sections. Photographs shall be taken at each cross section with one photograph facing each bank. VISUAL MONITORING Visual monitoring shall take place along the entire stream reach twice annually during the monitoring period to document any lateral movement, structure failure, aggradation/degradation, invasive species, headcuts, or beaver activity. Visual monitoring will also be required in the buffer to document any excessive mortality, low stem density, encroachments, or invasive species. LONG-TERM PRESERVATION MECHANISM The long-term preservation mechanism will be in the form of buffer rule legislation provided in the Jordan Lake Water Supply Watershed Buffer Rule, 15A NCAC 02B .0267. The Town of Apex will manage the buffer and enforce requirements of the buffer rule to provide long-term assurance to the success of the project. The Division of Water MONITORING PLAN > DOGWOOD creating experiences through experience 2 of 2 Resources shall periodically inspect the Town’s buffer program to ensure that requirements of the buffer rules are being implemented and enforced. SUCCESS CRITERIA Success criteria will determine if the restoration project is meeting its prescribed goals for the project. A determination will be made regarding the success of the project following the collection and evaluation of ecological and physical monitoring data, photographs, site observations, and the performance of the streams during storm events. Monitoring components that will be evaluated include vegetation survival, channel bed and bank stability, and in-stream structure performance. STREAM SUCCESS CRITERIA Channel stability will be reflected in the surveyed permanent cross sections, evaluation of bank stability and cover, evaluation of in-stream structure performance and to a lesser degree pebble counts compared to the as-built and any previously collected monitoring data. The general trend should reflect a stable or slightly decreasing riffle cross sectional area whereas pools may increase and yet be considered relatively stable. Normally the constructed channel will adjust (especially in a sand dominated bed) but it will need to function without significant degradation (bed scour), aggradation (mid-channel bars), or bank erosion. The Bank Height Ratio (BHR) as determined by cross section surveys, shall not exceed 1.2 and the Entrenchment Ratio shall be no less than 2.2 within the restored reaches. The stream shall remain stable over the first year, through two bankfull events, as indicated by visual surveys and cross sections. CLIENT REVISIONS PROJECT NO.2021110390 FILENAME CHECKED BY RAS DRAWN BY CHJ SCALE DATE 08.25.2022 N0.DATE M: \ P r o j e c t s \ T O A \ 2 0 2 1 1 1 0 3 9 0 D o g w o o d R i d g e S t r e a m S t a b i l i z a t i o n P h 2 \ 0 4 - P r o d u c t i o n \ W a t e r R e s o u r c e s \ C u r r e n t D r a w i n g s \ 2 0 2 1 1 1 0 3 9 0 - L S . d w g , 8/ 2 5 / 2 0 2 2 8 : 1 5 : 3 2 A M , Re b e c c a S t u b b s The John R. McAdams Company, Inc. 2905 Meridian Parkway Durham, NC 27713 phone 919. 361. 5000 fax 919. 361. 2269 license number: C-0293, C-187 www.mcadamsco.com DO G W O O D R I D G E S T R E A M ST A B I L I Z A T I O N CO N S T R U C T I O N D R A W I N G S 15 0 4 W H I T E K O U S A P L AP E X , N C 2 7 5 0 2 SHEET PLAN INFORMATION FINAL DRAWING - NOT RELEASED FOR CONSTRUCTION TOWN OF APEX ROBERT PATTERSON, PE APEX, NC 27502 PHONE: 919. 249. 1166 L5.00 2021110390-LS N.T.S. PLANTING NOTES PLANTING INSTRUCTIONS: PLANTING TECHNIQUES: 1.ENSURE THAT ROOTS, ONCE REMOVED FROM POT, ARE STRAIGHTENED AND FACE DOWNWARD. 2.CREATE PLANTING AREA FOR EACH PLANT AND EXCAVATE PIT. 3.PLACE PLANTS IN PIT INSURING ROOTS ARE FACING COMPLETELY DOWNWARD. 4.HEEL IN SOIL AROUND PLANT AND PROCEED TO NEXT PLANTING LOCATION. 5.NEWLY PLANTED PLANTS NEED TO BE FASTENED TO THE SUBSTRATE FOR THE ESTABLISHMENT OF NEW ROOTS 6.ROOTS SHALL BE SPREAD IN THEIR NORMAL POSITION. ALL BROKEN OR FRAYED ROOTS SHALL BE CUT OFF CLEANLY. 7.THE DIAMETER OF THE PITS FOR ALL VEGETATIVE STOCK SHALL BE AT LEAST THREE TIMES THE DIAMETER OF THE ROOT MASS. PLANT PIT WALL SHALL BE SCARIFIED PRIOR INSTALLATION. 8.SET THE PLANTS UPRIGHT, IN THE CENTER OF THE PIT. THE BOTTOM OF THE ROOT MASS SHOULD BE RESTING ON UNDISTURBED SOIL. 9.PLACE THE BACKFILL AROUND THE BASE AND SIDES OF THE MASS, AND WORK EACH LAYER TO SETTLE BACKFILL AND TO ELIMINATE VOIDS AND AIR POCKETS. WHEN PIT IS APPROXIMATELY 2 3 FULL, WATER THOROUGHLY BEFORE PLACING REMAINDER OF THE BACKFILL. WATER AGAIN AFTER PLACING FINAL LAYER OF BACKFILL. 10.BROKEN OR DAMAGED PARTS WILL BE CUT BACK TO UNDAMAGED TISSUE, LEAVING AS MUCH GREEN BASAL TISSUE AS POSSIBLE ABOVE THE ROOTS. IF MORE THAN FIFTY PERCENT (50%) OF THE PLANT IS DAMAGED THEN CONTRACTOR SHALL REPLACE THE PLANT. BARE ROOT / CONTAINERIZED STOCK: 1.STOCK SHALL HAVE BEEN GROWN LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL TOGETHER ONCE REMOVED. 2.CONTAINER PLANTS WILL NEED TO BE WATERED REGULARLY AND PLACED IN SHADY CONDITIONS UNTIL PLANTING OCCURS. 3.BARE ROOT PLANTS ARE FOR IMMEDIATE PLANTING, OTHERWISE SEE D) BELOW. 4.IF BARE ROOTS SPECIMENS ARE NOT TO BE PLANTED WITHIN FOUR (4) DAYS, TEMPORARY HOLDING OF BARE ROOT SPECIMENS ARE TO BE COVERED ENTIRELY BY A SUITABLE MEDIUM (ETC. SOIL, SAWDUST, MULCH OR THE LIKE) AND WATERED REGULARLY SO AS NOT TO DRY OUT. 5.ALL SPECIES CHANGE REQUESTS MUST BE APPROVED BY ECOENGINEERING BEFORE PLANTING. PLANT LOCATIONS: 1.NEW PLANTINGS SHALL BE LOCATED WHERE SHOWN ON PLAN EXCEPT WHERE CHANGES HAVE BEEN APPROVED IN PROPOSED CONSTRUCTION. 2.PLANT SPACING SHALL FOLLOW REQUIREMENTS NOTED WITHIN PLANT DISTRIBUTION NOTES LISTED ON THIS SHEET. 3.NECESSARY ADJUSTMENTS SHALL BE MADE ONLY AFTER APPROVAL BY THE OWNER OR THE OWNER'S REPRESENTATIVE. WATER: WATER SHALL BE POTABLE AND SHALL NOT CONTAIN ELEMENTS TOXIC TO PLANT LIFE.PLANTING NOTES: 1.THE PLANTING STOCK SHALL BE GROWN WITHIN THE PIEDMONT REGION BY NURSERIES WITHIN 200 MILES OF THE PROJECT SITE. THE SEED SOURCES FOR THE PLANT MATERIAL SHALL ALSO BE FROM THE PIEDMONT REGION AND SHALL BE OBTAINED WITHIN 200 MILES OF THE PROJECT SITE. PLANT STOCK AND SEED MIXES MAY BE USED FROM NURSERIES BEYOND THE 200 MILE LIMIT WITH THE APPROVAL OF THE DESIGNER. 2.THE CONTRACTOR (I.E. PLANTING SUPERVISOR) INSTALLING THE VEGETATION SHALL HAVE ONE OF THE FOLLOWING QUALIFICATIONS / CERTIFICATIONS: CERTIFIED LANDSCAPE TECHNICIAN, CERTIFIED PLANT PROFESSIONAL, REGISTERED FORESTER, REGISTERED LANDSCAPE CONTRACTOR, OR CERTIFIED NURSERYMEN. 3.THE CONTRACTOR (I.E. PLANTING SUPERVISOR) WILL BE RESPONSIBLE FOR MANAGING ALL ACTIVITIES INVOLVING PERMANENT PLANTING, INCLUDING BUT NOT LIMITED TO THE FOLLOWING: SITE PREPARATION FOR PLANTING, SEEDLING HANDLING AND STORAGE, PLANTING OPERATIONS, QUALITY CONTROL INSPECTIONS, AND MANAGING PLANT COMPETITION. 4.THE PLANTING PERIOD FOR THIS PROJECT SHALL OCCUR IN THE FALL OR WINTER (IF THE GROUND IS NOT FROZEN). PLEASE NOTE PLANTING SHALL NOT TAKE PLACE IF ANY OF THE FOLLOWING OCCUR: (1) THE TEMPERATURE IS BELOW 32°F, (2) THE SOIL TO BE EXCAVATED FOR THE PLANT HOLE IS FROZEN, OR (3) THE SOIL TO BE USED FOR BACKFILLING IS FROZEN OR TOO WET. 5.FOR ALL PLANTED MATERIAL (BARE ROOT / CONTAINERIZED SEEDLINGS, LIVE STAKES, AND PERMANENT SEEDING) THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING (I.E. A WARRANTY) AN 80% SURVIVAL RATE FOR THE DURATION OF THE FIRST YEAR MONITORING PERIOD. ANY COSTS ASSOCIATED WITH REPLACING PERMANENT PLANTINGS THAT DO NOT SURVIVE THE FIRST YEAR SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. PLEASE NOTE THE ONE-YEAR MONITORING PERIOD BEGINS UPON ACCEPTANCE OF THE PERMANENT PLANTINGS BY THE DESIGNER. AT THE END OF THE FIRST YEAR MONITORING PERIOD, AN ON-SITE INSPECTION WILL BE CONDUCTED BETWEEN THE CONTRACTOR AND DESIGNER. AT THAT TIME, THE CONTRACTOR WILL BE DIRECTED ACCORDINGLY ON REPLACEMENT OF ANY NECESSARY PLANTINGS. 6.THE ONE-YEAR WARRANTY SHALL INCLUDE MORTALITY AND POOR GROWTH DEFECTS, BUT SHALL NOT INCLUDE DEFECTS RESULTING FROM ABUSE BY OTHER PARTIES AND ABNORMAL WEATHER CONDITIONS. PLEASE NOTE THE 80% SURVIVAL RATE IS A MINIMUM STANDARD AND THE CONTRACTOR MAY PROVIDE ADDITIONAL MEASURES THEY DETERMINE WILL BE BENEFICIAL TO PLANT SURVIVABILITY. ANY ADDITIONAL MEASURES WILL BE CONSIDERED PART OF THE 80% SURVIVAL CLAUSE AND WILL NOT CONSTITUTE A CHANGE ORDER. THIS MAY INCLUDE, BUT IS NOT LIMITED TO, SOIL AMENDMENTS, IRRIGATION, AND MULCH. 7.AT THE CONTRACTOR'S DISCRETION, THE PROPAGATION METHOD LISTED FOR EACH PLANT MAY BE ALTERED IF IT IS LIKELY TO IMPROVE SURVIVABILITY. THIS WILL BE SOLELY AT THE CONTRACTOR'S DISCRETION AND WILL THEREFORE NOT BE CONSIDERED A CHANGE ORDER. ALSO, NO CHANGE IN THE PLANTING DENSITY WILL BE GIVEN. 8.THE CORRECT SPACING OF VEGETATION WITHIN THE PLANTING ZONE SHOULD BE CHECKED BY THE PLANTING SUPERVISOR ON A REGULAR BASIS. PLANT DISTRIBUTION NOTES: 1.PLANT SPACING SHALL BE BASED ON A 8’ X 8’ GRID. THIS SPACING REFERS TO PLANTING THE PLANTS EACH 8 FEET APART FROM EACH OTHER IN ALL DIRECTIONS. THIS SPACING DOES NOT RELATE TO PLANTING DISTANCE AT THE ZONE BOUNDARY. 2.PLANT SPACING SHALL TAKE INTO ACCOUNT EXISTING TREES WITHIN THE RIPARIAN BUFFER. 3.PLANT DISTRIBUTION SHALL BE RANDOM AND IS DEFINED AS FOLLOWS: RANDOM DISTRIBUTION – TAKE ALL PLANTS AND MIX THE PLANTS SO THAT THEY ARE ALL PLANTED RANDOMLY. IF DONE PROPERLY, SOMETIMES TWO OR MORE OF THE SAME SPECIES WILL BE PLANTED ADJACENT TO EACH OTHER AND OTHER TIMES THERE MAY ONLY BE ONE PLANT OF A SPECIES COMPLETELY SURROUNDED BY ONE OR MORE OTHER SPECIES. THE PLANTING CONTRACTOR SHALL ALSO RANDOMLY DISTRIBUTE CONTAINERIZED AND BARE ROOT / TUBLING PLANTINGS. IN GENERAL, 50% OF EACH PLANTING ZONE SHALL BE CONTAINERIZED PLANTINGS AND 50% SHALL BE BARE ROOT / TUBLING PLANTINGS. 4.THE FIRST PLANTING ROW SHOULD BEGIN ½ OF THE PLANTING DISTANCE IN FROM THE OUTER EDGE OF THE PLANTING ZONE. THE ENTIRE ZONE SHALL BE PLANTED FULLY AT THE DESIGNATED SPACING. THE PLANTING ZONE IS TO BE PLANTED TO WITHIN ½ THE DESIGNATED PLANT SPACING DISTANCE FROM ANY EDGE OF THE ZONE. IN ALL CASES, PLANTS SHALL BE PLANTED UNTIL PLANTS ARE PLACED TO WITHIN A MAXIMUM OF 3 4 OF THE PLANT SPACING DISTANCE FROM THE EDGE OF THE PLANTING ZONE. 5.THE CORRECT SPACING OF VEGETATION WITHIN THE PLANTING ZONE SHOULD BE CHECKED BY THE PLANTING SUPERVISOR ON A REGULAR BASIS DURING PLANTING. DOCUMENTATION OF EACH INSPECTION SHALL BE KEPT BY THE SUPERVISOR AND SHALL BE MADE AVAILABLE FOR INSPECTION UPON REQUEST. PLEASE NOTE ANY COSTS ASSOCIATED WITH CHECKING THE PLANT SPACING / DOCUMENTATION ARE THE RESPONSIBILITY OF THE CONTRACTOR. 6. THERE SHALL NOT BE ANY BARE ROOT SEEDLINGS PLANTED WITHIN COIR MATTING. GRADING AND SOIL PREPARATION NOTES: 1.THE TOPSOIL MUST BE STOCKPILED. 2.ANY AREAS ON THE SITE THAT ARE COMPACTED DURING THE CONSTRUCTION PROCESS, MUST BE DEEP TILLED TO ENSURE THAT THE ROOT GROWTH OF THE PLANTS WILL NOT BE IMPEDED BY COMPACTED SOIL. THIS DOES NOT INCLUDE ANY AREAS THAT ARE PURPOSEFULLY COMPACTED IN THE SUBSOIL TO PREVENT THE DOWNWARD MOVEMENT OF WATER. 3.ALL TOPSOIL SHALL BE STOCKPILED SEPARATELY FROM ANY SUBSOIL MATERIAL. 4.ANY AREA THAT HAS FILL APPLIED TO IT OR ANY AREA EXCAVATED TO THE SUBSOIL MUST BE TOP DRESSED WITH AT LEAST 4 INCHES OF STOCKPILED TOPSOIL. BEFORE THE APPLICATION OF TOPSOIL, THE SURFACE MUST BE TILLED TO ENSURE GOOD INTERACTION BETWEEN THE TOPSOIL AND THE SUBSOIL. 5.UPON COMPLETION OF FINAL GRADING, THE PLANTING SUPERVISOR SHALL CONDUCT A SITE ASSESSMENT TO DETERMINE IF THE SOIL IS APPROPRIATELY PREPARED FOR PLANTING. IF ANY PROBLEMS EXIST, THEY SHALL BE NOTED AND CORRECTED BEFORE PLANTING MAY COMMENCE. 6.TO PROMOTE PROPER GROWTH, THE CONTRACTOR SHALL DEEPLY TILL AND SCARIFY THE PLANTING ZONES TO ENSURE THAT THE ROOT GROWTH OF THE PLANTS WILL NOT BE IMPEDED BY COMPACTED SOIL. ANY SUB-SURFACE HARDPANS WITHIN THE PLANTING ZONE SHALL BE ELIMINATED. RIPPING, DISKING, OR RAKING SHALL BE PERFORMED IN ALL AREAS TO BE SEEDED TO A MINIMUM DEPTH OF 3 INCHES TO 4 INCHES. 7.IN SEEDED AREAS, TO LIMIT EROSION POTENTIAL, THE CONTRACTOR SHALL LIMIT SUB-GRADE AND FINISH GRADE PREPARATION TO AREAS THAT WILL BE PLANTED IMMEDIATELY. PREPARED AREAS SHALL BE MOISTENED PRIOR TO SEEDING WHEN THE SOIL IS DRY, BUT CARE SHALL BE TAKEN TO NOT CREATE MUDDY CONDITIONS. 8.THE PLANTING ZONE SHALL NOT BE GRADED LEVEL. MICROTOPOGRAPHY IS DESIRED TO PROMOTE DIFFUSE FLOW AND SURFACE WATER STORAGE. MICROTOPOGRAPHICAL DEPRESSIONS SHALL NOT BE GREATER THAN 6 INCHES IN DEPTH. 9.UPON COMPLETION OF FINAL GRADING, THE PLANTING SUPERVISOR SHALL CONDUCT A SITE ASSESSMENT TO DETERMINE IF THE SOIL IS APPROPRIATELY PREPARED FOR PLANTING. IF ANY PROBLEMS EXIST, THEY SHALL BE NOTED AND CORRECTED BEFORE PLANTING MAY COMMENCE. SEEDBED PREPARATION 1.APPLY LIME ACCORDING TO SOIL TEST RECOMMENDATIONS. SOILS WITH A PH OF 6 OR HIGHER NEED NOT BE LIMED. IF RECENT TILLAGE OPERATIONS HAVE RESULTED IN A LOOSE SURFACE, ADDITIONAL ROUGHENING MAY NOT BE REQUIRED EXCEPT TO BREAK UP LARGE CLODS. IF RAINFALL CAUSES THE SURFACE TO BECOME SEALED OR CRUSTED, LOOSEN IT JUST PRIOR TO SEEDING BY DISKING, RAKING, HARROWING, OR OTHER SUITABLE METHODS. SEEDBED PREPARATION WITHIN LIMITS OF DISTURBANCE AREAS ONLY 1.CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP OVER ADVERSE SOIL CONDITIONS, IF AVAILABLE. 2.RIP THE ENTIRE AREA TO 6 INCHES DEPTH. 3.REMOVE ALL LOSE ROCK, ROOTS, AND OTHER OBSTRUCTIONS LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM. 4.PER ONE TIME ONLY, APPLY LIME UNIFORMLY AND MIX WITH SOIL. 5.CONTINUE TILLAGE UNTIL A WELL-PULVERIZED, FIRM, RESONABLY UNIFORM SEEDBED IS PREPARED 4 TO 6 INCHES DEEP. 6.SEED ON FRESHLY PREPARED SEEDBED AND COVER. 7.MULCH IMMEDIATLEY AFTER SEEDING AND ANCHOR MULCH. 8.INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIRS OR RESEEDINGS WITHIN THE PLANTING SEASON, IF POSSIBLE. CONSULT INSPECTOR ON MAINTENANCE TREATMENT AFTER PERMANENT COVER IS ESTABLISHED. SPECIES SELECTION: 1.THE PERMANENT PLANTING SPECIES SELECTION SHALL BE BASED ON THE “TREE” AND/OR “SMALL TREE/SHRUB” SPECIES LISTED WITHIN THE PLANTING ZONE TABLE ON THIS SHEET. PLANT SUBSTITUTES WILL NOT BE CONSIDERED FOR THIS PROJECT AS FLEXIBILITY HAS BEEN INCLUDED BELOW IN NOTES #3 AND #4. 2.THE PERMANENT PLANTINGS WILL BE PLANTED IN THE DESIGNATED PLANTING ZONES ONLY (SEE HATCHED AREAS ON SHEET LS2.00). PLEASE NOTE IT IS THE CONTRACTOR'S RESPONSIBILITY TO ENSURE THAT AN ADEQUATE NUMBER OF PLANTINGS ARE AVAILABLE DURING THE SPECIFIED PLANTING PERIOD. 3.WITHIN THE EXISTING UTILITY EASEMENT, ONLY PERMANENT SEED MIXTURES AND LIVE STAKES (WITHIN THEIR DESIGNATED PLANTING ZONES) WILL BE APPLIED AND PLANTED, NO PERMANENT BARE ROOT SEEDLINGS SHALL BE PLANTED WITHIN THE EXISTING UTILITY EASEMENTS 4.PRIOR TO PLANTING, A WRITTEN LIST (SIGNED BY THE PLANTING SUPERVISOR) OF THE ACTUAL SPECIES PURCHASED FROM THE NURSERY (AND IN WHAT PERCENTAGES OF THE TOTAL) MUST BE DELIVERED TO THE DESIGNER FOR REVIEW AND APPROVAL. 5.THE PLANTING ZONES SHALL BE PLANTED WITH AT LEAST SIX OF THE LISTED SPECIES AS DEPICTED ON THE PLANTING ZONE TABLE LISTED ON THIS SHEET. NO MORE THAN 20% OF ANY ONE SPECIES SHALL MAKE UP EACH PLANTING ZONE. NO SPECIES SHALL MAKE UP LESS THAN 10% OF THE EACH PLANTING ZONE. 6.PRIOR TO SEEDING/APPLICATION, THE CONTRACTOR SHALL PROVIDE THE DESIGNER WITH SEED MIX INFORMATION, INCLUDING BUT NOT LIMITED TO: GERMINATION RATES, NOXIOUS WEED SEEDS, AND DATE / LOCATION OF HARVEST. THIS INFORMATION MUST BE REVIEWED / APPROVED BY THE DESIGNER. 7.AFTER PLANTING, A WRITTEN LIST (SIGNED BY THE PLANTING SUPERVISOR) OF THE ACTUAL SPECIES INSTALLED (AND IN WHAT PERCENTAGES OF THE TOTAL) MUST BE DELIVERED TO THE DESIGNER FOR REVIEW BEFORE FINAL APPROVAL (I.E. - START OF THE ONE-YEAR MONITORING PERIOD) OF THE PLANTING WILL BE ISSUED. INSTALLATION METHODS: BARE ROOT / CONTAINERIZED SEEDLINGS (REFERENCE DETAIL) 1.THE STORAGE, HANDLING, AND PLANTING OF BARE ROOT / CONTAINERIZED SEEDLINGS WILL FOLLOW THE PROCEDURES OUTLINED IN THE NC DIVISION OF FOREST RESOURCES (NCFS) "POCKET GUIDE TO SEEDLING CARE AND PLANTING STANDARDS", 6th EDITION. JANUARY 2007. ONLY THE HIGHEST QUALITY BARE ROOT / CONTAINERIZED SEEDLINGS SHALL BE PLANTED. THE PLANTED SEEDLINGS SHALL HAVE WELL-DEVELOPED FIBROUS ROOT SYSTEMS AND HEALTHY BUDS. 2.ALL BARE ROOT / CONTAINERIZED SEEDLINGS SHALL BE DORMANT AT TIME OF ACQUISITION AND PLANTING. 3.ALL BARE ROOT / CONTAINERIZED SPECIES SHALL HAVE A MINIMUM OF FOUR (4) FIRST ORDER LATERAL ROOTS (FOLR) THAT EXCEED 1 MM IN DIAMETER. SEEDLINGS THAT DO NOT POSSESS THE MINIMUM NUMBER OF FOLR SHALL BE CULLED FROM PLANTING. BARE ROOT / CONTAINERIZED TREE SPECIES SEEDLINGS THAT WILL FORM THE CANOPY MUST HAVE A MINIMUM ROOT COLLAR DIAMETER (RCD) OF 3/8 INCH. SEEDLINGS WITH LESSER RCD’S CULLED FROM PLANTING. 4.THE CONTRACTOR SHALL PAY CLOSE ATTENTION TO THE HANDLING OF THE PLANT MATERIAL DURING CONSTRUCTION TO PREVENT INJURY TO OR DRYING OUT OF THE TRUNK, BRANCHES, OR ROOTS. FREEZING OF THE PLANT ROOTS SHALL ALSO BE PREVENTED. 5.UNLESS THEY ARE PROMPTLY PLANTED IMMEDIATELY FOLLOWING DELIVERY TO THE PROJECT SITE, ALL PLANTS WITH BARE ROOTS SHALL BE HEELED-IN CONSTANTLY WITHIN MOIST SOIL OR SAWDUST (IN A MANNER CONSISTENT WITH GENERALLY ACCEPTED HORTICULTURAL PRACTICES). 6.IF THE PLANTING AREA IS LOCATED ON COMPACTED SOIL, THE SOIL IN THIS AREA SHALL BE LOOSENED TO A MINIMUM DEPTH OF 1-FOOT. SEEDLINGS MAY BE PLANTED IN HOLES MADE BY A MATTOCK, DIBBLE, PLANTING BAR, OR OTHER PROVIDED THE MEANS ARE APPROVED BY THE DESIGNER. ROOT STOCK SHALL BE PLANTED IN A VERTICAL POSITION WITH THE ROOT COLLAR LOCATED APPROXIMATELY 0.5-INCHES BELOW THE SOIL SURFACE. THE PLANTING TRENCH OR HOLE SHALL BE WIDE ENOUGH TO ALLOW ROOTS TO SPREAD OUT AND DOWN WITHOUT J-ROOTING. AFTER PLANTING, THE SOIL AROUND THE SHRUB OR TREE SHALL BE TAMPED FIRMLY TO REMOVE POTENTIAL AIR POCKETS. 7.STRAW MULCH SHALL BE PLACED: (1) AROUND THE BASE OF EACH SEEDLING/PLANT IN A MINIMUM 4" TO 6" LAYER AND (2) OVER ALL SEEDED AREAS. LIVE STAKES (REFERENCE DETAIL) 1.SEE DETAIL ON SHEET L5.01 FOR SPECIFICATIONS OF LIVE STAKE SPECIES AND INSTALLATION. GENERAL NOTES: 1.ALL RIPARIAN BUFFER AREAS WITHIN THE LIMITS OF DISTURBANCE TO BE SEEDED TO SPECIFICATIONS UNLESS OTHERWISE NOTED. 2.ALL AREAS OUTSIDE OF THE LIMITS OF DISTURBANCE TO REMAIN IN THEIR NATURAL CONDITION. 3.CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN FIELD. ANY DISCREPANCIES SHALL BE REPORTED TO THE OWNER AND DESIGNER, PRIOR TO PROCEEDING WITH THE WORK. SEQUENCE OF PLANTING EVENTS: THE CONTRACTOR IS RESPONSIBLE FOR THE FOLLOWING GENERAL SEQUENCE OF CONSTRUCTION: 1.SET UP STAGING AREAS AND ACCESS ROADS. INSTALL CONSTRUCTION ENTRANCES, SILT FENCE, AND SILT FENCE OUTLETS (AS REQUIRED). SEE EROSION AND SEDIMENT CONTROL DETAILS FOR ADDITIONAL INSTRUCTIONS. 2.CONTRACTOR TO STOCKPILE AND STAGE MATERIALS ONLY AT THE LOCATIONS SHOWN ON THE PLANS UNLESS OTHERWISE APPROVED BY THE DESIGNER. NO WASTE STOCKPILING IS ALLOWED. ALL WASTE MATERIALS MUST BE REMOVED FROM THE FLOODPLAIN AND THE PROJECT SITE. 3.PREPARE PLANTING AREAS AS NEEDED. APPLY TEMPORARY OR PERMANENT SEED. SEE PLANTING NOTES AND SEEDING NOTES THIS SHEET FOR ADDITIONAL INSTRUCTIONS. 4.PLANT SITE ACCORDING TO THE PLANTING SPECIFICATIONS. 5.IN SEEDED AREAS, TO LIMIT EROSION POTENTIAL, THE CONTRACTOR SHALL LIMIT SUB-GRADE AND FINISH GRADE PREPARATION TO AREAS THAT WILL BE PLANTED IMMEDIATELY. PREPARED AREAS SHALL BE MOISTENED PRIOR TO SEEDING WHEN THE SOIL IS DRY, BUT CARE SHALL BE TAKEN TO NOT CREATE MUDDY CONDITIONS. 6.COMPLETE ALL FINAL SITE WORK NECESSARY TO COMPLETE THE PROJECT. TEMPORARY SEEDING SCHEDULE: TEMPORARY SEEDING SHALL BE APPLIED AS NEEDED DURING CONSTRUCTION TO STABILIZE BARE OR DISTURBED AREAS OF SOIL AND AT THE COMPLETION OR ALL GRADING AND EARTHWORK ACTIVITIES WITHIN A PARTICULAR AREA OF THE SITE. PERMANENT SEED MAY BE DISTRIBUTED WITH TEMPORARY SEED UPON THE FINAL APPLICATION OF TEMPORARY SEED. SEEDING DATE SEEDING MIXTURE APPLICATION RATE AUG 15 - MAY 1 RYE (GRAIN) 30 LBS/AC AUG 15 - MAY 1 WHEAT 30 LBS/AC MAY 1 - AUG 15 GERMAN MILLET 10 LBS/AC MAY 1 - AUG 15 BROWNTOP MILLET 10 LBS/AC SEEDING METHODS 1.EVENLY APPLY SEED USING A CYCLONE SEEDER, DRILL, CULTIPACKER SEEDER, OR HYDROSEEDER. THIS MUST BE DONE WITHIN 48 HOURS OF LAND DISTURBING ACTIVITIES. 2.MULCH WITH CLEAN WHEAT STRAW. 3.AFTER SEEDING, APPLY MULCH TO AREAS UNDER HARSH CONDITIONS SUCH AS AREAS THAT HAVE BEEN GRADED, OR THOSE WHICH WILL RECEIVE CONCENTRATED FLOWS. AREAS CONSIDERED TO BE UNDER HARSH CONDITIONS WILL BE CONSIDERED THE AREAS GRADED FOR THE WETLAND VALLEY. 4.RESEED AND MULCH AREAS WHERE SEEDLING EMERGENCE IS LESS THAN 80% COVERAGE, OR WHERE EROSION OCCURS, AS SOON AS POSSIBLE. DO NOT MOW. PROTECT FROM TRAFFIC AS MUCH AS POSSIBLE. NOTES 1.TEMPORARY ANNUAL SEED SELECTION SHOULD BE BASED ON SEASON OF PROJECT INSTALLATION. 2.A SINGLE SPECIES FOR TEMPORARY COVER IS ACCEPTABLE 3.IN SOME CASES WHERE SEASONS OVERLAP, A MIXTURE OF TWO OR MORE SPECIES MAY BE NECESSARY. HOWEVER, APPLICATION RATES SHOULD NOT EXCEED THE TOTAL RECOMMENDED RATE PER ACRE. 4.TEMPORARY SEED SHOULD BE MIXED AND APPLIED SIMULTANEOUSLY WITH THE PERMANENT SEED MIX IF OPTIMAL PLANTING DATES ALLOW. PERMANENT SEEDING SCHEDULE: PLANT MATERIAL SELECTION 1.REFER TO THIS SHEET FOR APPROPRIATE SELECTIONS OF NATIVE PERMANENT SEEDS AND WILDFLOWERS. 2.PERMANENT GRASS SEED INCLUSION IN THE MIXTURE SHOULD TOTAL 15 LBS OF PURE LIVE SEED (PLS) PER ACRE DRILLED OR 15-20 LBS pls/AC BROADCAST APPLIED. 3.AT LEAST 4 SPECIES SHOULD BE SELECTED FOR THE MIXTURE INCLUDING ONE SPECIES FROM EACH TYPE (WARM SEASON, COLD SEASON, WETLAND). SELECTION OF MORE THAN 4 SPECIES IS RECOMMENDED FOR INCREASING CHANCES OF SUCCESSFUL VEGETATION ESTABLISHMENT. 4.IF OTHER SPECIES SUCH AS WILDFLOWERS ARE ADDED TO THE MIX, THEY SHOULD NOT BE COUNTED IN THE MINIMUM SEEDING RATE FOR GRASSES. SEEDBED PREPARATION 1.DISTURBED SOILS WITHIN RIPARIAN AREAS MUST BE AMENDED TO PROVIDE AN OPTIMUM ENVIRONMENT FOR SEED GERMINATION AND SEEDLING GROWTH. 2.THE pH OF THE SOIL MUST BE SUCH THAT IT IS NOT TOXIC AND NUTRIENTS ARE AVAILABLE. 3.SOIL ANALYSIS SHOULD BE PERFORMED TO DETERMINE NUTRIENT AND LIME NEEDS OF EACH SITE. 4.APPROPRIATE pH LEVELS ARE BETWEEN 5.5 - 7. 5.RIPARIAN BUFFERS REGULATED FOR NUTRIENT MANAGEMENT MAY BE LIMITED TO A SINGLE APPLICATION OF FERTILIZER. 6.SUITABLE MECHANICAL MEANS SUCH AS DISKING, RAKING, OR HARROWING MUST BE EMPLOYED TO LOOSEN COMPACTED SOIL PRIOR TO SEEDING. PLANTING 1.APPLY SEED UNIFORMLY WITH A CYCLONE SEEDER, DROP-TYPE SPREADER, DRILL, OR HYDROSEEDER ON A FIRM, FRIABLE SEEDBED. 2.IN FINE SOILS, SEEDS SHOULD BE DRILLED 0.25 - 0.5 INCHES. IN COARSE SANDY SOILS, SEEDS SHOULD BE PLANTED NO DEEPER THAN 0.75 INCHES. MULCH 1.MULCH ALL PLANTINGS IMMEDIATELY AFTER SEEDING. 2.IF PLANTING ON STREAM BANKS STEEPER THAN 10% OR AREAS SUBJECT TO FLOODING, A BIODEGRADABLE ROLLED EROSION CONTROL PRODUCT IS RECOMMENDED TO HOLD SEED AND SOIL IN PLACE. MAINTENANCE 1.THE RECOMMENDED PERMANENT GRASS SPECIES MAY REQUIRE TWO YEARS FOR ESTABLISHMENT, DEPENDING ON SITE CONDITIONS. 2.INSPECT SEEDED AREAS FOR FAILURE AND MAKE NECESSARY REPAIRS, SOIL AMENDMENTS, AND RE-SEEDINGS. 3.IF WEEDY EXOTIC SPECIES HAVE TAKEN OVER THE AREAS AFTER THE FIRST GROWING SEASON, THE INVASIVE SPECIES MUST BE ERADICATED TO ALLOW NATIVE SPECIES TO GROW. 4.MONITOR THE SITE UNTIL LONG-TERM STABILITY HAS BEEN ESTABLISHED. 1. INSERT PLANTING BAR 12" INTO THE GROUND AS SHOWN AND PULL HANDLE TOWARD PLANTER. 3. INSERT PLANTING BAR 2 INCHES TOWARD PLANTER FROM SEEDING. 4. PULL HANDLE OF BAR TOWARD PLANTER, FIRMING SOIL AT BOTTOM. 5. PUSH HANDLE FORWARD FIRMING SOIL AT TOP 6. LEAVE COMPACTION HOLE OPEN WATER THOROUGHLY. 2.REMOVE PLANTING BAR AND PLACE SEEDING AT CORRECT DEPTH. NOTES: 1.AREAS NOTED AS BARE ROOT PLANTINGS WITHIN THE PLANTING ZONE SHALL BE PLANTED WITH SPECIES LISTED ON THIS SHEET. 2.DURING PLANTING, SEEDLINGS SHALL BE KEPT IN A MOIST CANVAS BAG OR SIMILAR CONTAINER TO PREVENT ROOT SYSTEMS FROM DRYING. 3.PLANTING BAR SHALL HAVE A BLADE WITH A TRIANGULAR CROSS SECTION, AND SHALL BE 12 INCHES LONG, 4 INCHES WIDE AND 1 INCH THICK AT CENTER. 4.ALL SEEDLINGS SHALL BE ROOT PRUNED, IF NECESSARY, SO THAT NO ROOTS EXTEND MORE THAN 10 INCHES BELOW THE ROOT COLLAR. BARE ROOT PLANTING DETAIL N.T.S. *SEED MIXTURE SHOWN ABOVE INCLUDES NATIVE GRASS AND WILDFLOWER SPECIES. CONTRACTOR SHALL APPLY ENOUGH SEED TO ACHIEVE 15 PLS LBS PER ACRE OF GRASS SEED. CLIENT REVISIONS PROJECT NO.2021110390 FILENAME CHECKED BY RAS DRAWN BY CHJ SCALE DATE 08.25.2022 N0.DATE M: \ P r o j e c t s \ T O A \ 2 0 2 1 1 1 0 3 9 0 D o g w o o d R i d g e S t r e a m S t a b i l i z a t i o n P h 2 \ 0 4 - P r o d u c t i o n \ W a t e r R e s o u r c e s \ C u r r e n t D r a w i n g s \ 2 0 2 1 1 1 0 3 9 0 - L S . d w g , 8/ 2 5 / 2 0 2 2 8 : 1 5 : 3 4 A M , Re b e c c a S t u b b s The John R. McAdams Company, Inc. 2905 Meridian Parkway Durham, NC 27713 phone 919. 361. 5000 fax 919. 361. 2269 license number: C-0293, C-187 www.mcadamsco.com DO G W O O D R I D G E S T R E A M ST A B I L I Z A T I O N CO N S T R U C T I O N D R A W I N G S 15 0 4 W H I T E K O U S A P L AP E X , N C 2 7 5 0 2 SHEET PLAN INFORMATION FINAL DRAWING - NOT RELEASED FOR CONSTRUCTION TOWN OF APEX ROBERT PATTERSON, PE APEX, NC 27502 PHONE: 919. 249. 1166 L5.01 2021110390-LS 1"=20' PLANTING PLAN U T T O B E A V E R C R E E K GRAPHIC SCALE 0 10 20 40 1 inch = 20 ft. LIMITS OF DISTURBANCE 0.72 AC PLANTING ZONES NOTES: 1.AREAS NOTED AS LIVE STAKES WITHIN THE PLANTING ZONE SHALL BE PLANTED WITH SILKY DOGWOOD (CORNUS AMOMUM), SILKY WILLOW (SALIX SERICEA), AND BLACK WILLOW (SALIX NIGRA). 2.ONE LIVE STAKE SPECIES PER LIVE STAKE AREA. ALTERNATE SPECIES PER LIVE STAKE AREA. 3.LIVE STAKE AREA IS BASED ON A 4' X 4' GRID MEASURED ON CENTER. EACH PLANT WILL BE INSTALLED 4 FEET AWAY FROM ADJACENT PLANTS IN ALL DIRECTIONS. THIS SPACING DOES NOT RELATE TO PLANTING DISTANCE AT THE ZONE BOUNDARY. 4.ALL LIVE STAKES SHALL BE DORMANT AT TIME OF ACQUISITION AND PLANTING. 5.LIVE STAKES SHALL BE 1/2-2” IN DIAMETER. LIVE STAKES SHALL ALSO BE 2 - 4 FEET IN LENGTH. 6.DURING PREPARATION, THE BASAL ENDS OF THE LIVE STAKES SHALL BE CLEANLY CUT AT AN ANGLE TO FACILITATE EASY INSERTION INTO THE SOIL, WHILE THE TOPS SHALL BE CUT SQUARE OR BLUNT FOR TAMPING. ALL LIMBS SHALL BE REMOVED FROM THE SIDES OF THE LIVE CUTTING PRIOR TO INSTALLATION. 7.CUTTINGS FOR LIVE STAKES SHALL BE HARVESTED IN A MANNER SUCH THAT THEY ARE CUT, IMMEDIATELY PUT INTO WATER TO BE SOAKED FOR 10 DAYS, AND THEN PLANTED IMMEDIATELY AFTER THE 10 DAYS ARE COMPLETED. CUTTINGS SHALL REMAIN WET UNTIL THEY ARE PLANTED. OUTSIDE STORAGE LOCATIONS SHOULD BE CONTINUALLY SHADED AND PROTECTED FROM WIND AND DIRECT SUNLIGHT. 8.LIVE STAKES SHALL BE TAMPED AT AN ANGLE INTO THE GROUND SURFACE WITH A DEAD BLOW HAMMER, WITH BUDS ORIENTED IN AN UPWARD DIRECTION. STAKES SHOULD BE TAMPED UNTIL APPROXIMATELY 3/4 OF THE STAKE LENGTH IS WITHIN THE GROUND. ANY STAKES THAT ARE SPLIT OR DAMAGED DURING INSTALLATION SHALL BE REMOVED AND REPLACED. 9.THE AREA AROUND EACH LIVE STAKE SHALL BE COMPACTED BY FOOT AFTER THE LIVE STAKE HAS BEEN INSTALLED. 10.ONE TO TWO INCHES SHALL BE CUT CLEANLY OFF OF THE TOP OF EACH LIVE STAKE (WITH LOPPERS) AT AN ANGLE OF APPROXIMATELY 15 DEGREES FOLLOWING INSTALLATION. LIVE STAKE DETAIL N.T.S.