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HomeMy WebLinkAboutSW8020908_COMPLIANCE_20040130STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. DOC TYPE El CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION C� DOC DATE YYYYMMDD INFILTRATION BASIN ANALYSIS FILENAME: G:IDATAIWPDATAIWQSIINBASIN1020908.WK1 PROJECT NUMBER: 020908 DATE: 30-Jan-04 PROJECT NAME: Carteret Community College- Wayne West and Marine Tech. Bldgs. DRAINAGE BASIN: White Oak REVIEWER: L. Lewis RECEIVING STREAM: Bogue Sound CLASS: SA Index No.: 20-36-8.5 If ORW, is site within the 575' AEC? SITE AREA 8.986 acres IMPERVIOUS AREA CALCULATION BUILDINGS PARKING/ASPHALT CONCRETE OTHER TOTAL % IMPERVIOUS, 1= ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED INFILTRATION RATE SURFACE AREAS AND ELEVATIONS DRAINAGE AREA: FEET MSL SF �' :,�`j INCHE5IHOUR or 0.000069 FPS Infiltration Basin Elev. (ft) Area, sq ft Inc. Volume Acc. Volume BOTTOM 17.75 4035 19 5094 5705,625 5705.625 20 6005 5549.5 11255.125 TOP 20.9 6874 5795.55 17050.675 VOLUME / DEPTH 1 DRAWDOWN CALCULATION DESIGN STORM, INCHES DESIGN VOLUME TOTAL VOLUME AVAILABLE TIME TO DRAWDOWN FINAL STORAGE POND SIZING CUBIC FEET 1?0.75i CUBIC FEET . -i'<>. 6 $ HOURS Required Volume = 16739 cubic feet Area @ elevation 8 = 15,902 sf Area @ elevation 9 = 17687 sf Provided Volume = 16794.5 cubic feet Phase 1A pond volume provided = 5020.00 cubic feet Phase 1 B pond volume provided = 11011 cubic feet Total = 16031.00 See note 1 COMMENTS Volume and drawdown are (not) within Design Requirements. Note 1- infiltration pond volume makes up the slight deficiency. MUST BE <120 of WArF�4 Michael F. Easley, Governor 1 Q William G. Ross Jr., Secretary �O North Carolina Department of Environment and Natural Resources co Alan W. Klimek, P.E.,Director p Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality January 22, 2004 Mr. Joseph Barwick, President Carteret Community College 3305 Arendell Street Morehead City, NC 28557-2989 NOTICE OF INSPECTION Carteret Community College Stormwater Project No, SW8 020908 Carteret County Dear Mr. Barwick: Please find attached a copy of the completed form entitled "Stormwater Compliance Inspection Report'. The report summarizes the findings of a recent inspection of the project's stormwater controls conducted on January 21,.2004 to determine compliance with Stormwater Permit Number SW8 020908 issued on February 12, 2003. The required actions that are necessary to bring this site into compliance are noted under Section 4 of the report. Please inform this Office in writing before February 22, 2004, of the specific actions that will be undertaken and the time frame that will be required to correct the deficiencies. Failure.ib provide the requested information, when required, may initiate enforcement action. If you have: any questions please contact me at the Wilmington Regional Office, telephone number (910) 395-3900. Sincerely, -v , �/, , /,—� � � Linda Lewis Environmental Engineer RSS/arl: S:IWQSISTORMWATIINSPECT1020908.jan04 cc: Vince Chirichella, Stewart Engineering Wilmington Regional Office Linda Lewis N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NCDENR STORMWATER COMPLIANCE INSPECTION REPORT 1. Project Name: Carteret Community College 2 3 51 Project Number: 020908 Control Measure: Water Body: Bogue Sound Classification: Directions to site, address: Off Highway 70 in Morehead City Inspection Date Weather Conditions Compliance Issues: January 21, 2004 sunny and cold Infiltration W Y N ❑ ® All slopes are grassed with permanent vegetation and are not eroding. ❑ ® Vegetated slopes are no steeper than 3:1. ❑ ® Required maintenance is being performed. ❑ ® The vegetated filter is in place and functional. Required Actions: (Each deficiency is explained below and what needs to be done to bring the system back into compliance) a. The slopes of the storage pond are not grassed and are eroding in many places. Large sediment plumes'are evident in several locations. Please remove the accumulated sediment, repair the eroded areas and stabilize with permanent vegetation. 14 % b. The slopes of the storage pond are steeper than 3:1 in many places, especially on the edge behind the new Wayne West building. Please regrade the slopes to 3:1. c. Required, routine maintenance is not being performed. d. The vegetated filter is not grassed and is not functioning as approved. Please grade and stabilize the filter per the approved plan. Inspector: Linda Lewis/ Water Quality/Wilmington Regional Office/(910) 395-3900 RSS/arl: S:IWQSISTORMWATIINSPECT1020908.jan04 INFILTRATION BASIN ANALYSIS FILENAME: G:IDATAIWPDATAIWQSIINBASIN1020908.WK1 PROJECT NUMBER: 020908 DATE: 30-Jan-04 PROJECT NAME: Carteret Community College- Wayne West and Marine Tech. Bldgs. DRAINAGE BASIN: White Oak REVIEWER: L. Lewis RECEIVING STREAM: Bogue Sound CLASS: SA Index No.: 20-36-8.5 If ORW, is site within the 575' AEC? SITE AREA 8.986 acres DRAINAGE AREA: :..,:,_32665' SF IMPERVIOUS AREA CALCULATION Rational C BUILDINGS 56402 1 PARKING/ASPHALT 62536 1 CONCRETE 9331 1 OTHER 7595 6 TOTAL 0 3<' % IMPERVIOUS, I= ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED INFILTRATION RATE SURFACE AREAS AND ELEVATIONS Infiltration Basin Elev. (ft) Area, sq ft Inc. Volume Acc. Volume BOTTOM 17.75 4035 19 5094 5705.625 5705.625 20 6005 5549.5 11255.125 TOP 20.9 6874 5795.55 17050.675 VOLUME / DEPTH 1 DRAWDOWN CALCULATION DESIGN STORM, INCHES DESIGN VOLUME TOTAL VOLUME AVAILABLE TIME TO DRAWDOWN FINAL STORAGE POND SIZING >;.:15: CUBIC FEET 17650.61.6 CUBIC FEET HOURS Required Volume = 16739 cubic feet Area @ elevation 8 = 15,902 sf Area elevation 9 = 17687 sf Provided -Volume = 16794.5 cubic feet Phase 1A pond volume provided = 5020.00 cubic feet Phase 1 B pond volume provided = 11011 cubic feet Total = 16031.00 See note 1 COMMENTS Volume and drawdown are (not) within Design Requirements. Note 1- infiltration pond volume makes up the slight deficiency. MUST BE <120 State of North Carolina Department of Environment and Natural Resources CV ay Wilmington Regional Office nui ( ?l�> Division of Land Resources�� Land Quality Section Michael F. Easley, Governor William G. Ross Jr., Secretary August 20, 2002 NOTICE OF RECEIPT OF EROSION & SEDIMENTATION CONTROL PLAN Carteret Community College Mr. Alvin T. Rhue, 3505 Arendeli Street Morehead City NC 28557-2894 Dear Mr. Rhue: This office has received a soil erosion and sedimentation control plan for the project listed below which was submitted as required by the North Carolina Sedimentation Pollution Control Act (NCGS 113A-57(4)1. Please be advised that this Act requires that all persons disturbing an area of one or more acres of land must obtain approval of a soil erosion control plan prior to the commencement of said land disturbing activity (NCGS 11 3A- 54(d)(4)1. The act further states that this plan must be filed a minimum of 30 days prior to the activity and the approving authority must approve or disapprove the submitted plan within 30 days of receipt. Failure of the approving authority to approve or disapprove the submitted plan within the 30 day period will be deemed approval of the plan. Commencement or continuation of a land -disturbing activity under the jurisdiction of this Act prior to the approval of an erosion and sediment control plan is a violation of the Act. A copy of any erosion and sediment control plan which could involve the utilization of ditches for the purpose of dewatering or lowering the water table is forwarded by this office to the Division of Water Quality (DWQ). It is suggested that you contact the Division of Water Quality at (910) 395-3900 if the ditches shown on your plan will lower the water table. The approval of an erosion and sediment control plan is conditioned on the applicant's compliance with Federal and State water quality laws, regulations and rules. If you have questions, please do not hesitate to contact this office. Your cooperation in this matter is appreciated and we look forward to working with you on this project. Sincerely, Janet L. Paith, CPESC Environmental Technician JLP/bfr cc: Vince Chirichella; Stewart Engineering WiRO-LQS PROJECT NAME: Carteret Community College Additions/Renovations 2002 PROJECT NUMBER: CA-03036 LOCATION: Arendell Street - Carteret County RIVER BASIN: White Oak SUBMITTED BY: Stewart Engineering DATE RECEIVED BY LQS: August 19, 2002 J� 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer