Loading...
HomeMy WebLinkAboutSW8910403_Historical File_19910411 ti inns 4J. State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James G. Martin, Governor Bob Jamieson William_ W. Cobey, Jr., Secretary April 11, 1991 Regional Manager DIVISION OF ENVIRONMENTAL MANAGEMENT Mr. Michael Lord, County Administrator Pender County Post Office Box 5 Burgaw, North Carolina 28425 Subject: Certification of Compliance with Stormwater Regulations Stormwater Project No. 910403 Pender County Government Complex Pender County Dear Mr. Lord: This Certification is pursuant to the revised stormwater application for the Pender County Government Complex received on April 3 , 1991. The revised project plans have resulted in the deletion of one detention pond and 221,857 sf of total site area from the southern portion of the project. Based on our review of the revised project plans and specifications, we have determined that the stormwater control system complies with the Stormwater Regulations set forth in Title 15A NCAC 2H. 1003 (i) . The runoff will be treated in one detention pond sized to achieve 90% reduction in Total Suspended Solids. This Certification shall be effective from the date of issuance until rescinded and supersedes Certification of Compliance #900907 which was issued to you on October 29, 1990. The project shall be constructed and maintained in accordance with the final plans and specifications approved by the Wilmington Regional Office. A professional engineer must certify that the stormwater system has been installed in accordance with the approved plans and specifications. The attached certification should be received by this Office within 30 days of completion of construction. Continued 7225 Wrightsville Avenue, Wilmington, N.C. 28403-3696 •Telephone 919-256AI61 • Fax 919-256-8572 Mr. Lord April 11, 1991 Page Two -------------------- If you have any questions concerning this matter, please call Alexis Finn or me at (919) 256-4161. Sincerely, OWNAL SIGNED BY, Dave Adkins DAVID T. ADKINJ Water Quality Regional Supervisor Attachment DA/AIF: 900907.APP cc: Phillip Tripp, Project Engineer Ron Covil John Parker, DCM Bill Mills Jim Herstine Alexis Finn Central Files r e DIVISION OF ENVIRONMENTAL MANAGEMENT Evaluation of Stormwater Treatment and Disposal System Draining to Waters Other Than Class SA PROJECT DATA Project Name: Pender County Government Complex Project No. : 910403 Location (County, Township/Municipality, Address) : Highway 117 Burgaw, North Carolina Pender County Applicant Name: Mr. Michael Lord, County Administrator Mailing Address: Pender County Post Office Box 5 Burgaw, North Carolina 28425 Submittal Date: April 3 , 1991 Water Body Receiving Stormwater Runoff: Osgood Branch Classification of Water Body: C Swamp DETENTION POND EVALUATION 1. Yes No The design storage is for the runoff from all impervious surfaces resulting from 1-inch of rainfall and is located above the permanent pool. 2 . Yes No The permanent pool is designed for 90% TSS removal. Therefore, no vegetative filter is required. 3 . Yes No The runoff completely draws down to the permanent pool in 5 days, but not less than 2 days. 4 . Yes No The mean depth of the permanent pool is a minimum of 3 feet. 5. Yes, No The inlet structure is designed to minimize turbulence and short circuiting. 6 . Yes No An appropriate operation and maintenance plan has been provided for the system. Continued S WET DETENTION POND EVALUATION CONTINUED 7 . Yes No THIS PROJECT MEETS THE STORMWATER CONTROL REQUIREMENTS OF 15A NCAC 2H. 1003 (g) , (i) , .(k) , and (1) (For Yes, 1 through 7 must all be circled Yes. ) Brief Explanation: Two detention ponds have been designed to remove 90% TSS without a vegetative filter. DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN-OFF Wilmington Regional Office �- -- Date Individual Evaluating Form/Plans Id J PAL t 99? - Date —mate uality Regional Supervisor cc: Applicant/WiRO/Mills/CF Engineer's Certification I. , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, (Project) for the hereby state that, to (Project Owner) the best of my abilities, due care and diligence was used in the observation of the project construction such, that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications . Signature Registration Number Date A&K Project No. 90083 14ECEIVE ). NC Stormwater Project No. 910403 FEB 16 1993 Wilmington Regional office DEM ENGINEER'S CERTIFICATION I , Phillip G. Tripp, as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe periodically the construction of the project, Pender County Government Complex Stormwater System in Burciaw, North Carolina for Pender County (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. �tWHoe0000 Signature + ►•'R H Cq�0(�•�� Ess Registration Number 17374 �4 a; SE-AL :.v Date 2 9 93 11374, ;. J eoe REG&61-Q�"J e000to88111. v o� c v mE 133 Soo Zry By3 = �(aaj3 3 a-, Pc-= re'_V 4 c��-.� Ao2EA _.m�_y. . K< <.�/5Lc)ek mud Id �:� s �(v,3Oc� -+ cao s = 1-23, ySs.o S�or en) 5C7,t� IaJ-44 so.0 - ��.o -,S mq - $lOoto 44W 4�. Andrew & Kuske CONSULTING ENGINEERS, INC. P.O. Box 2889 202 North Fifth Avenue P.O. Box 88 28459 Wilmington, North Carolina 28401 John R. Andrew, P.E. Telephone: 919/343-9653 Telephone: 919/754-5900 J. A. Kuske, P.E, Facsimile: 9191343-9604 April 3 , 1991 N.C. Dept of Environment, Health & Natural Resources Division of Environmental Management Water Quality Section 127 Cardinal Drive Extension Wilmington, N.C. 28405-3845 Attn : Ms. Alexis Finn Re: Pender County Government Complex Burgaw, N.C. A&K Project No. 90083 Revised Stormwater Management Plan Dear Ms. Finn: Enclosed please find one print of the revised subject plan and revised calculations. The overall project has been revised to exclude the majority of the southern half. This project was previously approved by your office on October 29 , 1990, D. E.M. Project No. 900907 . Please review for approval and contact me should you have any questions or comments. Thank you for your assistance on this project. Sincerely, ANDREW & KUSKE CONSULTING ENGINEERS, INC. Q&A -A 4- V Phillip G. Tripp, P. E. PRoject Engineer PGT/bad enclosure • M LD� D E M IPRO_T A kDate design Andrew and Kuske Fsneer 3 91 �T . 202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 Of Check Job P2 For Job No. sT M � A LA=cloAls co. 3 Im( rr�ttduS A044A PT z I TaIAL A9.dA = ZCYdI l FTz P,&raAA#;#4r 1000G Fu,c (1001. T_4-- Kc.�Ma s-t�zc. 60-o C 10CkmAMf AtT px4— l6uUML Artk.A of PbWO ( 50k0 = IZII r-T 48.6 q,(off P-r 1ta-jA6 �ertNkf--i 43,5 - l5b-D = 1�,300 5-T3 K94 am FT3 I�-� 5iZ FTC aK o p ECE E LD! it AN 3 Kf9) DEM Paoy -W-3U-403___—. Date Design Andrew and Kuske FShe3 ( �'T 202 N. Fiffh Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 Check Job �v���o For S,aRn,wR�c �R��nu}-r►a+s �K `�0083 IL 'i 61r(- CuTL_C-r Aft A= 4151Z ' ►"f z�aoo 0,(c f64.—Ts' d = �=-CRZ,�4) _�, i 5�8 u-s(P42 tZ' (�= Z8 CFs IFOL ok M0