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HomeMy WebLinkAboutNCS000402_09_Annual Stormwater Operation and Maintenance Report Cover Sheet_20210621Annual Storrawater Operation and Maintenance Report Cover Sheet City of Mebane, North Carolina The City of Mebane National Pollution Discharge Elimination System Phase II (NPDES Phase II) Stormwater Permit (NCS000428) requires that structural SCMs be inspected annually to preserve and continue their function in controlling stormwater runoff quality and quantity at the degree or amount of function for which the structural SCM was designed. A. General Information Use only one Cover Sheet per site with as many specific structural Stormwater Control Measure (SCM) Inspection Report attachments as needed. Please attach digital photographs of the site and structural SCMs as applicable. Project Name: Compass Pointe Property PIN Number: 163481 SCM Owner: Slatter Management Services, Inc Owner Address: 4125-G Walker Avenue Greensboro, NC 27407 Owner Phone #: 336-272-0641 ext. 3999 Owner Email: andrea@slatterinc.com Annual Inspection Date: 04/22/2020 Inspection Company: G2 Design, P.A. Company Address: PO Box 297 Apex, NC 27502 Inspector Name: Timothy P. Grady Inspector Phone #: 919-321-0638 Inspector Email: tgrady@g2designpa.com B. inspection tceport Attacnments The listed attachments are the Structural SCM Inspection Reports to be completed for this particular site. Please use one attachment per inspected and submit all forms together with this Cover Sheet as one single report Also, please document the number of each structural SCM found at this site in the below blank spaces. # of SCM's Bioretention Area Dry Extended Detention Basin Filter Strip, Restored Riparian Buffer and Level Spreader Grassed Swale Infiltration Basin Infiltration Trench Permeable Pavement Sand Filter Underground Detention _ Wet Detention Basin 1 Stormwater Wetland Proprietary Device Mebane O&M Reports-03-10-2020 Cover Page 1 of 2 Annual Stormwater Operation and Maintenance Report Cover Sheet City of Mebane, North Carolina C. Inspection Results FAIL* *If any one item on the inspection form is coded as 'Work Needed', then the entire SCM fails inspection. *If a site has multiple SCMs and one fails inspection, this cover sheet is marked as 'Fail' until all items on all SCMs pass inspection. Note: Applicable SCM Inspection Reports and confirmatory digital photographs summarizing required repairs must be submitted to the City following completion of the preliminary inspection. A re -inspection and certification must be completed within 30 days of the failed preliminary report. It is strongly encouraged that the inspector be part of the repair and maintenance process in a QA/QC role in order to ensure that repairs are being performed properly. PASS ote: A passed inspection form should be signed, stamped, and sealed below by the appropriate Professional id submitted to the City on or before the established inspection due date. Attach all applicable SCM Inspection and confirmatory digital photographs accordingly. D. Professional Certification (Registered North Carolina professional engineer, surveyor, landscape architect, soil scientist, aquatic biologist, or a person certified by the North Carolina Cooperative Extension Service for stormwater To be completed only when all structural SCM's at this site are functional with no outstanding maintenance issues. as a duly registered in the State of North Carolina attest that thorough inspection has been completed for ALL structural SCMs that are associated with this particular site. All structural SCMs are performing properly and are in compliance with the terms and conditions of the maintenance agreement required by the City of Mebane. SEAL Signature: Date: Certification #: 023 Mebane O&M Reports-03-10-2020 Cover Page 2 of 2 Wet Detention Basin Operation and Maintenance Inspection Report City of Mebane, North Carolina Project Name: Compass Pointe City Project Number: N/A Property PIN Number: 163481 BMP Name: Wet Detention Pond BMP Owner: Slatter Management Services, Inc Owner Address: 4125-G Walker Avenue 336-272-0641 ext. 3999 Owner Phone #: 336-272-0641 ext. 3999 Owner Email: andrea@slatterinc.com Code Key: N/A = Not Applicable M = Monitor (potential for future problem) NP = Not a Problem WN = Work Needed Inspection Date: 04/22/2020 Recent Rainfall Date: 4/21 /2020 Rainfall Depth (in): 0.44" Inspector Timothy P, Grady Company: G2 Design, P.A. Phone #: 919.321.0638 Email: tgrady@g2designpa.com Comments Entire BMP Trash/debris is present INP -+ Perimeter of the wet detention basin Bare soil/erosive gullies WN See photoqraphic journal Vegetation is too short or long N P Other (describe) Inlet device: pipe or swale The pipe is clogged (if applicable) NP As best could be observed The pipe is cracked or otherwise damaged NP As best could be observed Erosion is occurring in the swale (if applicable) NP As best could be observed Other (describe) Forebay Sediment accumulation (greater than design depth) N P Erosion has occurred N P Invasive vegetation WN See photographic journal Other (describe) Vegetated shelf Pruning needed for optimal plant health N P Plants are dead, diseased or dying N P Invasive vegetation N P Other (describe) WN Discontinue mowinq; See photo journal Patc l of 2 otential Proble Code Comments Main treatment area Sediment accumulation (greater than design depth) N P Algal growth over 50% of water surface area N P Invasive vegetation covers 50% of water surface N P Other (describe) Embankment Shrubs/trees present WN See photographic journal Evidence of muskrat or beaver activity is present N P Needs repair (determined by appropriate professional) N P Other (describe) WN Bare areas; See photoqraphic journal Outlet device Clogging has occurred N P Device is damaged N P Debris on trash rack N P Other (describe) WN Grout separation; See photoqraphic jourr Receiving Water Erosion or other signs of damage at the outlet N P Other (describe) WN Sediment / Veq. See photo journal Miscellaneous Access N P Vandalism N P Signage (if applicable) N P Other (describe) ADDITIONAL COMMENTS See photographic journal for complete summarization of work required. PHOTOGRAPHS Attach digital photographs of the site and structural BMPs including a caption describing the photo. Page 2 of 2 G 2 n St or mwat er Services P: 919.321 .0638 F: 919.321 .831 1 PO BOX 297 Apex, NC 27502 PHOTOGRAPHIC SUMMARY OF REMEDIATION REQUIRED A: CUPREMOVE VEGETATION ON THE BACKSIDE OF THE DAM ALL THE WAY DOWN TO THE TOE OF THE BACK SLOPE; CONTINUE TO MOW ALL SIDES OF THE DAM AS A PART OF ROUTINE MAINTENANCE TO THE POND Page 1 of 7 B: CUT AND REMOVE LARGE WILLOWS FROM THE OUTLET DISC TREAT STUMPS WITH SYSTEMIC AQUATIC HERBICIDE TO PREVENT REGROWTH Page 2 of 7 61 �:,1 �', •- - „�, .:._f,. ••- r'.-.fir.. ate'• - � � - � �4:. . r. �� lee D: GROUT VOID AROUND THE ENTIRE OUTLET DISCHARGE PIPE WHERE PIPE CONNECTS TO THE OUTLET HEADWALL WITH NON SHRINK HYDRAULIC CEMENT Page 4 of 7 F: CUT & REMOVE CATTAIL DETRITUS FROM THE FOREBAY G: SCARIFY, SEED W1 K-31, BAHIA, BERMUDA SEED MIX & MAT BARE SPARSELY VEGETATED AREAS WHERE PRESENT AROUND THE POND Page 6 of 7 AN A MW. rr IV- W. 17 TOt. AN. L S&. IAW Awl 'Aw