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HomeMy WebLinkAboutSW1210502_C-DOC-1901780-BayFilter_AsBuiltCert-2021-05-12_20210519State Stormwater Management Permit No. SW AS -BUILT DESIGNER'S CERTIFICATION FOR ADS BAYFILTER PROJECT I hereby state that I am a licensed professional and I certify by my signature and seal below, that I have observed the construction of the project named above to the best of my abilities with all due care and diligence, and that the project meets the requirements ofNCAC 02H.1050(15), has been approved by the Division under the New Stormwater Technology MDC, meets the recommended MDC listed in Chapter D-4 of the Stormwater Design Manual, and has been constructed in accordance with the permit documents, plans and specifications on file with and provided to the Division, except as noted on the "AS -BUILT" drawings, such that the intent of the stormwater rules and the general statutes has been preserved. Check here if this is a partial certification. Section/phase/SCM #? Check here if this is part of a Fast -Track As -Built Package Submittal per .1044(3). Check here if the Designer did not observe the construction, but is certi ing the project. Check here if pictures of the SCM are provided. Printed Name_ Leon W. Bakely, lil, PE Signature `fl NC Registration Number 27405 Date SEAL: `'►►►►►1011111fil"ll • SEAL • 27405 — r fir BA • ..•••'•r�r ��� Consultant's Mailing Address: 3420 Torin don Way, Suite 210 City/State/ZIP Charlotte NC 28277 Phone Number (704) 565-7071 Consultant's Email address: Iba_k_eiy(ablcompa ni es. corn O Circle N if the as -built value differs from the Plan/permit. If N is circled, provide an explanation on page 2 OO N/E = not evaluated (provide explanation on page 2) OO N/A = not applicable to this project or SCM. This Certification must be completed in conjunction with the General MDC certification under NCAC 02H.1050 Consultant's Certification MDC .1050(15)OAs-built ON/E OO N/A A. Inlets / Pretreatment 1. Inlets are located per the approved plans. or N 2. A minimum 4' diameter by 2' deep sump is provided. tar N B. Volume / Elevations / Construction 1. The provided width, length and height of the detention area, includingthe piped storage, are consistent with the approved plan. 00 r N 2. The bottom elevation of the detention area is consistent with the a roved plans. Q�r N 3. The bypass elevation is consistent with the approved plan. r N 4. The overflow elevation is consistent with the approved plan. Y r N 5. The volume of water stored in the detention area is at least 0.75 times the treatment volume; OR y or N 6. The BayFilter is sized to treat the runoff flow rate from the a�11)r appropriate storm event. (j-N C. BayFilter Media and System 1. The as -built system meets the manufacturers specifications. Y r N 2. The number of cartridges provided is consistent with the approved Tans. Y r N 3. The media used in the filter uses one of BaySaver's standard r1 N medias. I. 4. The top of the cartridge shell has a label showing the required type of media. y r N State Stormwater Management Permit No. SW 5. The BayFilter Media has a flow rate of 0.5 GPM/ft` of media 10 n,r N surface. `/ Provide an explanation for every MDC that was not met, or for every deviation from the permitted condition below: