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Home My WebLink AboutSW8020913_COMPLIANCE_20120509STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW (�� DOC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION _(7 DOC DATE YYYYMMDD Sto v aog13 DIVISION OF WATER QUALITY INFILTRATION SYSTEM INVESTIGATION Complete and email this form to Vincent.Lewis@ncmail.net. if there are more than 7 areas to be tested, attach a second sheet. State Soil Scientist Confirmation Visit date/time: Y ` `/12,JF wd Project Name: Silver Lake Baptist Curch County: New Hanover Street Address: 4715 Carolina Beach Road Directions from the nearest intersection-oftwo major roads: 1.25 miles NW of intersection with South College >1 acre being disturbed? EYES ❑NO . CAMA Major required? [:]YES. ❑X NO Consultant Name: Brian Riley / Jack D. Reel,,PE Phone: 910-332-3402 Consultant Firm Name: Thomas & Hutton��ngineering Co. Bore Number 1 2 3 4 5 a Existing Ground Elevation b Proposed Bottom Elevation . _f c Difference a minus b`'`' d Add 2 ft. Min. Bore Depth) e Hardpan Depth? f Approx. Elev. Of SHWT 4 ,,,.1,,r Max. lowest bottom elev., h Infiltration Rate OK? i Confirmation of SHWT * $ S For projects requiring more than 5 hand borings, manpower or equipment to conduct the excavation must be provided by the consultant. *State.Soil Scientist Use ONLY Comments Requesting depth of SHWT only to assist in conceptual design of proposed expansion. ti Required Attachments: 1. Legible vicinity map. 2. Complete Soils Report. 3. PDF formatted site plan with the boring locations to be tested. Site plans should be emailed or hand -delivered only. Illegible faxed maps will not be accepted. All proposed infiltration areas and existing, active utility lines located within the proposed basin/trench must be marked and flagged. If these areas are not flagged, the Soils Scientist reserves the right to decline to do the investigation. If the proposed infiltration system will be located in an area of existing pavement and there is no open area nearby, equipment capable of breaking through the impervious layer must be provided. The soils investigation does not take the place of a soils report prepared by an appropriate professional. The Soils Scientist will only verify the soil conditions that are reported in the Soils Report, and make a determination as to the suitability of the site to meet the infiltration design requirements under iVCAC 2H.1000, and assumes no liability should the system fail. S:IWQSISTORMWATERIFORMSIinfiltration site visit Revised 3/08 D.-W d. at Pk *� Ito ZOO � 1 y TRACT "E �.. 5.11 Acre tit T"All fn cAv �► ;'� �� - i9 OF wArE�4 Michael F. Easley, Governor ca Q William G. Ross Jr., Secretary �O North Carolina Department of Environment and Natural Resources 00 > Alan W. Klimek, P.E.,Director Q Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality January 6, 2004 Mr. David C. Braddy, Pastor Cape Fear Baptist Church PO Box 705 Carolina Beach, NC 28428 NOTICE OF INSPECTION AND NON-COMPLIANCE Cape Fear Baptist Church Stormwater Project No. SW8 020913 New Hanover County Dear Pastor Braddy: 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 5, 2004 to determine compliance with Stormwater Permit Number SW8 020913 issued on April 3, 2003. A summary of the findings and comments are noted under Section 4 of the report. Please inform this Office in writing before February 6, 2004, of the specific actions that will be undertaken and the time frame required to correct the deficiencies. Failure to 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, Gary Beecher Environmental Technician RSS/ghb: S:IWQSISTORMWATIINSPECT10209'13.Jan 03 cc: consultant Wilmington Regional Office Gary Beecher WAX N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer service Aje Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NCOENH STORMWATER COMPLIANCE INSPECTION REPORT E Q Project Name: Cape Fear Baptist Church Project Number: 020913 Water Body: Snow's Cut Control Measure Classification: "SC" Wet Detention Pond Directions to site: HWY 421 South, before Carolina Beach Bridge, on (Rt) side Inspection Date: Weather Conditions: Compliance Issues: January 5, 2004 Dry and Warm Y N ❑ ❑ The drainage area (including offsite) and built -upon area to the permitted system are per the approved plan. No unpermitted offsite drainage enters the system. ❑ ❑ All the built -upon area associated with the project is graded such that the runoff drains to the system. ❑ ❑ For ponds/infiltration, the outlet/bypass structure relative elevations are per the approved plan. (Must be verified via as -built survey if in question). ❑ ❑ The inlets and outlet structure are located per the approved plans and do not cause short-circuiting. ❑ X A trash rack is provided over the outlet weir and orifice. ❑ ® All slopes are grassed with permanent vegetation and are not eroding. ❑ ❑ Vegetated slopes are no steeper than 3:1. ❑ ❑ The approximate amount of permitted surface area has been provided. (Must be verified via as -built survey or designer's certification.) ❑ ❑ Required drawdown devices are correctly sized per the approved plans. All required design depths are provided. ❑ ❑ All required parts of the system are provided, such as a vegetated shelf, and a forebay. ❑ ❑ The designer's certification has been submitted. ❑ ❑ The required deed restrictions are correctly recorded and submitted. ❑ ❑ The number of lots or outparcels is per the permitted amount. ❑ ❑ The built -upon area on the lots or outparcels does not appear to exceed the maximum amount (must be verified via as -built survey if in question) ❑ ❑ Curb outlet swales are constructed, located properly, are 100' long and have dense vegetated cover. ❑ ❑ The road, cul-de-sac, parking lot and sidewalk widths are per the approved plan. ❑ Required maintenance is being performed. ❑ Outparcels have their own offsite permit. ❑ ❑ For low density projects, roadside swales are 3.1, vegetated and stable. ❑ ❑ For low density projects, there are no unpermitted pipes on the project. 4. Required Actions: (Explain each deficiency and what needs to be done to bring the system back into compliance) (a) There is no trash rack on top of the outlet structure. The trash racks are essential in the function of the outlet system. Not only does the rack keep trash out, it also helps keep small children and animals from failing inside the outlet structure. A trash rack needs to be placed and fastened on top of the outlet structure ASAP. (b) There are several bare spots on the slopes of the pond. These need to be grassed to prevent further erosion from taking place. * The majority of the pond looked good, most of the sides were well grassed and relatively erosion free. The system also seems to be working well. Inspector: Gary Beecher Water Quality/Wilmington Regional Officel(910) 395-3900 Ext 222 RSSlghb: S:1WQSISTORMWATIINSPECT1020913.Jan04 DETENTION POND ANALYSIS FILE NAME: G:IDATAIWPDATAIWQSIPOND1020913.WK1 PROJECT #: SW8 020913 REVIEWER: L. Lewis PROJECT NAME: Cape Fear Baptist Church Modification DATE: 02-Apr-03 Receiving Stream: Snows Cut Class: SC Drainage Basin: Cape Fear Index No. CPF24 18-87-31.5 Site Area 1.20 acres Drainage Area ,..,,272.00` square feet Area = 1.20 acres IMPERVIOUS AREAS Rational C Buildings 8050.00 square feet Parking 22456.00 square feet Sidewalks 762.00 square feet square feet square feet square feet TOTAL 3126800<', square feet Rational Cc= 0.08 SURFACE AREA CALCULATION % IMPERVIOUS 59.82% Des. Depth 3 TSS: 90 SA/DA Ratio 6.97% Req. SA 3646 sf Prov. SA Fill :.:::488.3: sf VOLUME CALCULATION * place a "1" in the box if Rational is used Rational ?* Des. Storm :>: 1 00' inches Rv= 0.59 Bottom 8.2 msl Perm. Pool J ........' 11,2Q' msl Design Pool 11.9 msl Design SA 5634 sf Req. Volume 2�6 cf Prov. Volume 3681.< cf ORIFICE CALCULATION Avg. Head = Flow Q2, cfs Flow Q5, cfs No. of Orifices Diameter, inches Drawdown = 0.33 ft 0.015 cfs 0.006 cfs weir HxW days FOREBAY Perm. Pool Volume= Req. Forebay Volume= Provided Volume= Percent= SA @ _ Elevation= 11478 2295.6 2213,00 Q2 Area = 0.77 sq. in. Q5 Area = 0.31 sq. in. Orifice Area 0.44 sq. in. Q= 0.009 cfs '........ . in x FN COMMENTS Surface Area , Volume and Orifice are within Design Guidelines in