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HomeMy WebLinkAboutSW8920114_Historical File_19920205.�wveo, State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James G. Martin, Governor William W. Cobey, Jr., Secretary February 5, 1992 DIVISION OF ENVIRONMENTAL MANAGEMENT Mr. R. James Garner, Partner Queens Creek Company 6200 Fall of Neuse Road, Suite 200 Raleigh, North Carolina 27609 Dear Mr. Garner: Bob Jamieson Regional Manager Subject: Certification of Compliance with Stormwater Regulations Stormwater Project No. 920114 Queens Creek Plaza Onslow County This Certification is pursuant to the revised application for Queens Creek Plaza received on January 10, 1992. Based on our review of the 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). Site revisions include piping the previously approved outlet swale for Retention Basin No.3. The swale was not a vegetative filter. The runoff will be treated in three detention ponds sized to achieve 90% reduction in Total Suspended Solids. This Certification shall be effective from the date of issuance until rescinded. 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- 127 Catdlnal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 919-395-3900 • Fax 919.35Q2004 An Equal Opportunity Affirmative Action Employer Mr. Garner February 5, 1992 Page Two ---------------- If you have any questions concerning this matter, please call Alexis Finn or me at (919) 395-3900. Sincerely, ave Adkins Water Quality Regional Supervisor Attachment DA/AIF: 920114.FEB cc: Johnny Glenn Tew, Godwin -Jordan & Associates, P.A. Marshall Batchlor Bill Mills Alexis Finn on Reginna1 Central Files DIVISION OF ENVIRONMENTAL MANAGEMENT Evaluation of Stormwater Treatment and Disposal System PROJECT DATA Project Name: Queens Creek Plaza Shopping Center Project No.: 900617 Location (County, Township/Municipality, Address): N.C.S.R. 1509 Swansboro, North Carolina Onslow County Applicant Name: Mr. R. James Garner, Partner Mailing Address: Queens Creek Company 6200 Falls of Neuse Road, Suite 200 Raleigh, North Carolina 27609 Submittal Date: June 19, 1990 Water Body Receiving Stormwater Runoff: Cartwheel Branch Classification of Water Body: "SA" WET 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- 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: The surface area of these three (3) detention ponds have been designed to remove 90% TSS without the aide of a vegetative filter. The site location relative to the SA waters of Cartwheel Branch has been evaluated in accordance with the Forth Directive; September 10, 1990. Chloride concentrations were found to be 21 and 25 PPM 2640 ft. downstream of the detention pond outlets. As these concentrations were found to be considerably less than 500 PPM, the detention pond was determined to be a viable stormwater control which is not expected to degrade the receiving water body. DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF Wilmington Regional Office Date Individual Evaluating Form/Plans Date egional Water Quality Supervisor cc: Applicant/WiRO/Mills/CF JOEcmmmm^'SR. p���S. mOww/mE. Jnmoaw.�L.w. January 8, 1992 Godwin ~Jordan & Associates, P.A. ENGINEERING. SURVEYING aPLANNING ,nnWEST BROAD STREET iZ/puoua4) p0 moxu+o nwwm.m.o.000ao N.C. De�partment of Environment Health & Natural Resourses 127 Cardinal Drive Extention Wilmington, N.C. 28405 ATTENTION: MS. ALEXIS FINN pxOmCz17A,+83-1489 owmm.n,n,000'5,wn rAx4w3',xe9 �K«�AN� �0m�u.I j�' Q~� ���177 ��p D EM . ,0J�_���—x ---- REFERENCE: QUEENS CREEK SHOPPING CENTER REVISIONS TO STORMWATER RETENTION BASIN #3 Dear Ms. Finn: Is . As per our recent telephone1conversation the owner of the Queens Creek Shopping Center wishes to sell a portion of its property to an adjoining landowner in order that the adjoining owner might use the area as a parking area for his business » The additional area is the area that is presently used as a diversion swale for offsite water around retention basin #3 on the above referenced project site. The additional area is also used as an outlet swale for the principal and emergency spillway for retention basin #3. As can be seen on the attached revised plan, we propose to place 18" RCP pipe and junction boxes in the swale within the limits of the additional area and we also show the principal spillway pipe connected to one of the junction boxes to allow the spillway to function as previously designed. The emergency spillway has been relocated to the North portion of the retention basin 4:13 slope and is located above the inlet to the proposed 18" RCP pipe. The emergency spillway has been redesigned so that the slope remains 5% and the length of the spillway remains 30 LF. Due to the fact that neither the storage capacity or the SA/DA ratio has been changed from the originally approved quantities we feel that these changes will not adversly effect the functioning of retention basin #3 as perviously approved. Should you need further information in order to approve these revisions, please notify us. Sincerely" GODWIN-JORDAN & ASSOCIATES° P.A. ?c-hrnny Glenn Tew, P.E. JGT:dl STATE� State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James G. Martin, Governor William W. Cobey, Jr., Secretary May 5, 1991 DIVISION OF ENVIRONMENTAL MANAGEMENT Mr. R. James Garner, Partner Queens Creek Company 6200 Falls of Neuse Road, Suite 200 Raleigh, North Carolina 27609 Dear Mr. Garner: Bob Jamieson Regional Manager Subject: Request for CERTIFICATE OF COMPLETION Engineered Stormwater System Stormwater Project No. 900617 Queens Creek Plaza Onslow County On January 30, 1991, the Division of Environmental Management issued you a Certification of Compliance with Stormwater Regulations for the Queens Creek Plaza. Stormwater Regulation 15A NCAC 2H. 1003 (k) (3) stipulates the following: Upon completion of construction, a registered professional appropriate for the type of Stormwater system designed must certify that the system was inspected during construction and was constructed in substantial conformity with plans and specifications reviewed by the division and complies with the requirements of this Rule. As of this date, our records indicate the required engineer's certification has not been received. Operation of the stormwater system prior to submission of the required certification is in violation 'of NCAC 2H.1003(1) in accordance with NCGS 143-215.3 and is subject to enforcement action pursuant to NCGS 143-215.6. If construction of the subject project has not been completed, please provide written notification to this office which includes the present phase of construction and the expected date of construction completion. Written notification is required to be provided by May 26, 1991. If the facility has been constructed and placed in operation, please submit the required certification (attached) immediately. Construction is considered "complete" at the time the project is occupied by an owner or tenant for its intended use. Continued 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 919-395-3900 • Fax 919-350-2004 Mr. Garner May 5, 1991 Page Two -------------- If you have any questions concerning this matter, please call me at (919) 395-3900. Sincerely, Ms. Alexis I. Finn Environmental Engineer DA/aif: 900617.PE cc: Alexis Finn Wilmington Regional Office Central Files Engineer's Certification I, Professional authorized construction (Project for the , as a duly Engineer in the State of North Carolina, to observe (periodically/weekly/full of the project, IF registered having been time) 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