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HomeMy WebLinkAboutSW7050307_HISTORICAL FILE_20160204STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�/(i�� � DOC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE DOC DATE YYYYMMDD Central Files: APS SWP 2/4/2016 Permit Number � SW7050307 Permit Tracking Slip Program Category Status Project Type State SW Active Now Project Permit Type ersion Permit Classification State Stormwater 1.00 Individual 6!: Primary Reviewer Permit Contact Affiliation linda.lewis Coastal SWRule Coastal Stormwater -1995 Permitted Flow Facility Facility Name Major/Minor Region City of New Bern Public Works Facility '05 ,/ Minor Washington Location Address County 1030 S Glenburnie Rdi Craven Facility Contact Affiliation New Bern NC 26563 Owner Owner Name AM4,;A- 490phdL- Owner Type City of New Bern 6 3? ' 7s2¢ Government - Municipal Owner Affiliation Mark Stephens City Manager PO Box 1129 DateslEvents New Bern NC 28563 Scheduled Ofig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 91612005 3/4/2005 9/6/2005 9/6/2005 9/6/2019 Regulated Activities Requested /Received Events State Stormwater - Alternative Design Deed restriction requested State Stormwater - HD - Detention Pond Deed restriction received �Q tt 3-V 7 7 b Additional information requested 5123105 Additional information requested 815105 D h Z ,+¢�, 7� f Additional information requested 8/29105 Additional information received 6/13105 Additional information received 8/25/05 Additional information received 8/31/05 Outfali Waterbvdy Name A/PvSa- R1 �� s� f w ,5troamIndex Number Current Class Subbasin C10 j1"111 Sr., P.E., Inc. C.T. Clayton, Sr., Professional. Engineer 71 August 30, 2005 Ms. Linda Lewis, Environmental Engineer Division of Water Quality NCDENR 127 Cardinal Drive Extension Wilmington, NC 28405-3845 RE: Response to Request for Additional Information Stormwater Management Permit Application City of New Bern Public Works Facility Craven County Stormwater Project No. SW7 050307 Dear Ms. Lewis, PN 428q .�_ V SI.P' --1 20U5 DVIQ-INAR® Thank you so much for meeting with me yesterday to review our application. It was a pleasure to finally meet you in person. Attached you will find two (2) copies of the revised Sheet 1 of 5 of the drawings. The permanent pool of the wet detention pond has been dimensioned. Also, you will find a copy of a portion of Sheet 2 of 5 of the drawings to reflect the removal of the Weeping Lovegrass from the permanent seeding schedule. In addition, the Wet Detention Basin Supplement form has been revised to reflect a permanent pool surface area of 10,800 sf. This revised page has not been included per your request. If we can answer any questions or need to send additional information, please feel free to contact me at any time. I can be contacted via email at tyrus@ctclavton.com or at the following numbers: 910-897- 7070 (office), 919-795-6302 (mobile), or 910-897-6767 (fax). If for some reason you can not contact me, please contact C. T. Clayton at the following numbers: 252-672-0304 (office), 252-671-6979 (mobile), or 252-672-8577 (fax). Sincerely, C. T rus Clayton, Jr., P. E. attachments CC.' file, Danny Meadows, C. T. Clayton 3100 NC 27 East Coats, NC 27521 Phone: 910-897-7070 Fax; 910-897-6767 -^ VED A U G 11 2005 Offices located in Coats and New Bern, North Carolina www.ctclayton.com r -"Ir, '1z CAI "Muci moo w9l to NO3 YIN! wival W yonwhey mdll�j' i, tic! w jv nonwqIo �i .s4lba:ioo unlon u AISM07 0! WS"; �:� " � !�:ri ..!W mex dip S ACH MWAS? &V ado not ObL P! -la"041 Vvv Pq t NAW; f t to H "a rqUo" ;C Ow 41nou U, in f kv, ZION youn mb 6 Wouth; bw W "'o vv ow.nn 1 Z. is: 7MA hybro AUITITTQ] F•";1we"I'VIN .� . -I :iL -) � Cl�,yto�►, C.T. Clayton, Sr., Professional Engineer August 15, 2005 Ms. Linda Lewis, Environmental Engineer Division of Water Quality NCDENR 127 Cardinal Drive Extension Wilmington, NC 28405-3845 RE: Response to Request for Additional Information Stormwater Management Permit Application City of New Bern Public Works Facility Craven County Stormwater Project No. SW7 050307 Dear Ms. Lewis, PN: 23028 liECEIVED AUG 2 5 2005 PROJ # YA) 0-4y This letter and the attached package constitutes the response to your letter, dated August 5, 2005, requesting additional information concerning the Stormwater Management Permit Application that was submitted on March 2, 2005 for the above referenced project. The attached packacie should replace the vackage currently on file with your office. Hopefully, this submittal will find your approval and a permit will be issued. Below you will find each of the comments listed on the August 5 letter. Below each comment is our response. 1. The V orifice calculated for the wet detention pond is too small. The consultant has based the average head used in the orifice equation on a temporary pool elevation of 7... A calculation error in the conversion of the orifice area to diameter has been corrected. The value of H in the equation has been increased from 0.8 ft (temporary elevation of 6.3 ft) to 1 ft (temporary elevation of 6.5 ft). 2. The revised calculations indicate that the design volume provided in the wet detention pond is 17,500 cubic feet. This is incorrect since that volume appears to be based on a temporary pool elevation of 7.0.... Please see the revised application package. 3100 NC 27 East Coats, NC 27521 Phone: 910-897.7070 Fax: 910-897-6767 Offices located in coats and New Bern, North Carolina www.ctclayton.com ymn = tp,., "c-mythe- wn "- b,ju.:Ox; A P�- yrs LOM] TqcOmua upEgs fplm- ;'pI;pW"i:2 ZMAMST 1116 A mat q 5 to Sw A to I to ')UTZ IV inq th"bSTIZ4 pney ly wuhn pyaq Imp lu gri j -3C PC! 1, Typ is cSpX"W C 'f)L S! Val f1sx, u-nu um 11.4 -p :j:.1" B401 A WG jR Is$ nq nu fw a Vm8n at ��77�­-1,.�',.."';' iI"IOva !JJ1pjl"P P iWj 1.10 qnspliq wSpay :0 Iz, 6 Gaytar; Sr., P. E., Inc Ms. Linda Le« -is August 15, 2005 Page 2 of 2 3. Please provide revised, sealed, signed and dated calculations for the bio-retention basin. Please see the revised application package. 4. Normally, when revised calculations are necessary, it is customary for the consultant to either seal a new calculation cover sheet or to seal each individual revised page. The revised submittal was sealed on the included cover letter, which served as the cover sheet -for the package and was bound with all included revised documents. The included revised application package has also been sealed. 5. Please revise the orifice size on the wet detention supplement. Please see the revised application package. Please review these statements and the attachments referenced above. Hopefully, this will meet your approval. It would be greatly appreciated if you could review this information and respond in short order due to the City's schedule for construction of this facility. If we can answer any questions or need to send additional information, please feel free to contact me at any time. I can be contacted via email at tyrus65�ctclayton.com or at the following numbers: 910-897-7070 (office), 919-795-6302 (mobile), or 910-897-6767 (fax). If for some reason you can not contact me, please contact C. T. Clayton at the following numbers: 252-672-0304 (office), 252-671-6979 (mobile), or 252-672-8577 (fax). Sincerely, C. Tyrus Clayton, Jr., P. E. attachments cc: file C. T. Clayton Danny Meadows, City of New Bern ILScrveAprojects123 New Hem123028 Public Work s\Correspondcnce\LTR 05 0815 LewisDWQ SWAppResubmittal2 CTC Jr.doc ILI j.n'i j:6 f(O 1) lj�'. fT �4t Cr L L Z-C io.,,,� RECEIVED "' :"'` L AUG 31 2005 n i Sy I - r•riis••' V \- T-)R.aJ # yai4 US Ci_P+ ..�`�•`� PERMANENT SEEDING SCHEDULE Shoulders, Side Ditches, Slopes (Max. 3: 1) DATE: TYPE: Aug 15 - Nov 1 Tall Fescue Nov 1 -Mar 1 Tall Fescue and Abruzzi Rye Mar 1 - Apr 15 Tall Fescue Apr 15 - Jun 30 Hulled Common Bermudagrass Jul I - Aug 15 Tall Fescue and *Browntop Millet *or Sorghum - Sudan Hybrids Slopes (3:1 to 2:1) PLANTING RATES: 300 lbs./acre 3001bs./acre 25 lbs./acre 3001bs./acre 25 lbs./acre 1201bs-/acre 35 lbs./acre 30 lbs./acre Mar 1 - Jun 1 Sericea Lespedeza (scarified) and 50 lbs./acre (Mar 1 - Apr 15) Add Tall Fescue 120 lbs./acre - - - - --- - - .. _ . _ C�h 3Y (Mar 1 - Jun 30) Or Add Hulled Common Bermudagrass el 25 lbs./acre Jun 1 -Sep I *Tall Fescue and 120 lbs./acre *Browntop Millet 35 lbs./acre * or Sorghum - Sudan Hybrids 30 lbs./acre Sep 1 - Mar 1 Sericea Lespedza (unhulled - unscarif ed) 70 Ibs.lacre and Tall Fescue 120 lbs./acre (Nov I - Mar 1) Add Abruzzi Rye 25 lbs./acre Consult the Conservation Engineer or the Soil Conservation Service for additional information concerning other alternative for vegetation of denuded areas. Permanent ground cover must be installed on all disturbed areas within 15 working days or 90 calendar days (whichever is shorter) following completion of construction or development. **Temporary - Reseed according to optimum season for desired permanent vegetation, Do not allow temporary cover to grow over in height before mowing, otherwise fescue may be shaded out. SEEDBED PREPARATION 1. Chisel compacted areas and spread topsoil 3" deep over adverse soil conditions, if available. 2. Rip the entire area to 6" depth. 3. Remove all loose rock, roots, and other obstructions leaving surface reasonably smooth and uniform. 4. Apply agricultural lime, fertilizer, and superphosphate uniformly and mix with soil (see below*). 5. Continue tillage unit a well -pulverized, firm, reasonably uniform seedbed is prepared 4" to 6" deep. 6. Seed on a freshly prepared seedbed and cover seed lightly with seeding equipment or cultipack after seeding. 7. Mulch immediately after seeding and anchor mulch. 8. Inspect all seeded areas and make necessary repairs or reseeding within the planting season, if possible. If stand should l over 60% damaged reestablish following original lime, fertilizer and seeding rates. 9. Consult the Conservation Inspector on maintenance treatment and fertilization after permanent cover is established. *Apply: Agricultural Limestone - 2 tons/acre or 3 tons/acre in clay soils. Fertilizer - 1000 lbs/acre Superphosphate - 500 lbs/acre (20%) Mulch - 2 tonslacre (small grain straw) Anchor - asphalt emulsion at 450 gal./acre a 1— C T Clayton Sr P6 Inc 910-897-6767 Fax To: Ms. Linda Lewis FAX: 910-350-2004 �Cf�layton, Sr., Professional Engineer From: C.T, Clayton, Sr., P.E. Pages: 1 including this Phone: 910-796-7404 Date: August 16, 2005 Re: Stormwater Project No. SW7 050307 City of New Bern Public Works Facility Cc: Danny Meadows, file P.N. 25028 For Review Please Comment Hard Copy to Follow X This is your Original • Comments: Dear Ms. Lewis: P.1 Per your administrative assistant, you left us a message at 252-672-0304. This is the number at our New Bern office, which is not staffed full time. Please use the Coats office number (910-897-7070) to reach us in the future. I understand that your message requested that we reschedule. 1 am available to meet on Thursday or Friday. Please let me know when you would be available. It is our intention to bring a complete application package to replace the documentation you currently have to prevent confusion. Thank yo��-0-tl' ~1 C. T rus Cl� on, Jr./P. Y Yt 3100 NC HM 27 EAST COATS, NORTH CAROLINA PHONE 91U97-7070 FAX: 910897-6767 MOBILE: 919 79"302 (Tyros) Email: tyrus@ctclayton.com Pug I;5 05 03: Sep C T Clayton Sr PE Inc 910-097-6767 ClQ,vton, Sr., P. E, loc. C.T. Clayton, Sr., Professional Engineer Fax To: Ms. Linda Lewis FAX: 910-350-2004 Phone: 910-796-7404 Re: Stormwater Project No. SW7 050307 City of New Bem Public Works Facility From: C.T. Clayton, Sr., P.E. Pages: 1 including this Date: August 15, 2005 Cc: P.N. 25028 For Review Please Comment Hard Copy to Follow X This is your Original • Comments: Dear Ms. Lewis. - As a follow -tip to our phone message, this is to confirm that Mr. Tyrus Clayton will be arriving at your office around 2:00 p.m. tomorrow, August 16, to discuss the referenced project. If you have a scheduling conflict, please let us know by 11:00 a.m. Thank you. Jean Lansford POST OFFICE BOX 12794 3100 NC HWY 27 EAST NEW BERN, NORTH CAROLINA 28561 COATS, NORTH CAROLINA PHONE: 252 672-0304 FAX: 252 672-8577 PHONE 910-697-7070 FAX: 910 897-6767 MOBILE: 252 671-6979 (C.T.) Email: d cox.net MOBILE: 919 795-6302 (Tyros) Email- tyrus@ctclayton.com r�0� WATE �pC. Michael F. Easley, Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources August 5, 2005 Mr. Danny Meadows, Director City of New Bern Public Works PO Box 1129 New Bern, NC 28563-1129 Subject: Request for Additional Stormwater Project No Public Works Facility Crarien County Dear Mr. Meadows: Information SW7 050307 Alan W. Klimek, P.E. Director Division of Water Quality On behalf of the Washington Regional Office, the Wilmington Regional Office received previously requested information regarding the pending Stormwater Management Permit Application for the New Bern Public Works Facility on June 13, 2005. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. The 1" orifice calculated for the wet detention pond is too small. The consultant has based the average head used in the orifice equation on a temporary pool elevation of 7, however the plan details and supplement form indicate that the temporary pool elevation is 6.5. The 1" orifice is too small even if the temporary pool elevation of 7 is used to calculate the average head. I am unable to duplicate the orifice diameters that the consultant has calculated using the areas he has provided. To determine the diameter, you must take the square root of the quotient, orifice area divided by -rr (pi), and multiply by 2. When I substitute the orifice areas provided by the consultant into this equation, I get an acceptable diameter range of 1.26" to 2". Please revise the orifice calculation using the average head between the permanent pool elevation of 5.5 and the desired temporary pool elevation. 2. The revised calculations indicate that the design volume provided in the wet detention pond is 17,500 cubic feet. This is incorrect since that volume appears to be based on a temporary pool elevation of 7.0, when in fact the reported temporary pool elevation is 6.5. Please either revise the calculations to accurately report the volume provided in the pond at the reported temporary pool elevation of 6.5, or revise the plans and supplement form to reflect a temporary pool elevation of 7.0. 3. Please provide revised, sealed, signed and dated calculations for the bio-retention basin. The drainage area used in the calculations dated March 1, 2005, does not match up with the drainage area reported on the revised page 2 of the application form submitted on June 13, 2005. 4. Normally, when revised calculations are necessary, it is customary for the consultant to either seal a new calculation cover sheet or to seal each individual revised page. 5. Please revise the orifice size on the wet detention supplement. It is currently still shown as a 6" orifice. North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 796-7215 Customer Service 1 -877-623-6748 Wilmington Regional Office Wilmington, NC 28405.3845 FAX (910) 350-2004 Internet: h2o.enr.state.nc.us One NorthCaroIina An Equal Opportunity/Aifirmadve Action Employer — 50% Recycled110% Post Consumer Paper Naturailly Mr. Meadows August 5, 2005 Stormwater Application No. SW7 050307 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to September 5, 2005, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7404. Sincerely, Linda Lewis Environmental Engineer ENBlarl: S:IWQSISTORMWATERIADDINFO120051SW7050307.aug05 cc: C.T. Clayton, Sr., P.E. Linda Lewis Page 2 of 2 .-A-28- 2005 8:44AM CT CLAYTON, SR, PE NC•9310 P. V/ G.T. Clayton, Sr., Professional Engineer To: Linda Lewis, DWQ From: C.T. Clayton, Sr_ FAX: 910-350-2004 Pages: 1 including this Phone: 910-796-7215 Date: June 28, 2005 Re: NEW BERN PUBLIC WORKS FACILITY SITE WORK, NCDENR Project No. SW 7050307 Cc: Danny Meadows, Tyrus Clayton P.N. 23028 RECEIVED JUN 2 8 2005 BY: -AV ?0-'�) V For Review Please Comment Hard Copy to Follow X This is your Original • Comments: Linda, Please check on the status of the referenced project and give me a call 252-671-6979_ Thanks C.T_ POST OFFICE BOX 12794 3100 NC HWY 27 EAST NEW KERN. NORTH CAROLINA 28561 COATS, NORTH CAROLINA PHONE: 252 672-0304 FAX: 252 672-W7 PHONE 91 M97-7070 FAX: 910 897-6767 MOBILE: 252 671-0979 (C.T.) Email: ctcpe@Cox nat MOBILE: 919 795-6302 (Tyros) Emall: tyrus@ctclayton.com New Bern Public Works Facility Subject: New Bern Public Works Facility From: Linda Lewis <linda.lewis@ncmail.net> Date: Tue, 28 Jun 2005 17:55:02 -0400 To: "C.T. Clayton, P.E." <ctcpe@cox.net> c.T.. The Division received previously requested additional information on June 13, 2005. I am currently running about 50 days for a review. Linda 1 of 1 6/29/2005 9:23 AM 761 CAvtoa Sr., P. E., Inc C.T. Clayton, Sr., Professional Engineer 1 June 9, 2005 Ms. Linda Lewis, Environmental Engineer Division of Water Quality NCDENR 127 Cardinal Drive Extension Wilmington, NC 28405-3845 RE: Response to Review Comments Stormwater Management Permit Application City of New Bern Public Works Facility Craven County Stormwater Project No. SW7 050307 Dear Ms. Lewis, PN: 23028 RECEIVED JUIV .I 3 2005 BY: This letter and the attached package constitutes the response to your letter, dated May 23, 2005, requesting additional information concerning the Stormwater Management Permit Application that was submitted on March 2, 2005 for the above referenced project and comments made via facsimile on June 6, 2005 in response to my request for clarification. Hopefully, this submittal will find your approval and a permit will be issued. Below you will find -each of the comments listed on the May 23 letter. Below each comment is our response. 1. Since two separate systems are being proposed, please complete one column on the application for the wet pond and one column for the bioretention system. Until the application has been modified to reflect this, I am unable to verify the design calculations. Please see Attachment #9 for a revised Page 2 of the Stormwater Management Permit Application Form. 2. Please specify the wetland species to be planted on the 6:1 shelf. Please reference Attachment #2 (revised Sheet 3 of the drawings). A note & table was added to the wet pond detail on Sheet 3 of the drawings. 3100 NC 27 East Coats, NC 27521 Phone: 910-897.7070 Fax: 910-897-6767 Offices located in Coats and New Bern, North Carolina www.ctclayton.com ClQytan, Sr., P. E., Inc. 3. Please report all built -upon areas in square feet on the application. Ms. Linda Lends June 9, 2005 Page 2 of 4 Please see Attachment #1 (revised Page 2 of the Stormwater Management Permit Application Form) 4. Please delineate the drainage area to each proposed system. Please reference Attachment #3 (Please note: DA1, the drainage area for the wet pond, encompasses the bioretention drainage area, DA2, for any storm water flow over the first 1-inch of rainfall.) Flow arrows are included to show the path of stormwater flow within each basin. 5. Please provide sufficient proposed spot elevations to assist the Division in discerning the drainage patterns for the pavement and buildings. Please reference Attachment #4, a revised Sheet 1 of the Drawings. A note has been added that designates the previously shown spot elevations as being proposed. Also, several spot elevations have been added to the area around the proposed buildings. 6. Please provide dimensions for all proposed pavement, buildings, sidewalks, etc. Please also dimension the bottom contour of the bioretention basin. Dimensions: Please reference Attachment #4 (revised Sheet 1 of the drawings). Due to the large amount of information already included on this site plan, only the rectangular buildings were dimensioned with width and length and the typical access road width has been shown. In order to specify the BUA for the remaining pavement, a table was added to the bottom left of the sheet that specifies the square footage each impervious area encompasses. Bioretention Area: Please reference Attachment #5, a revised Sheet 5 of the drawings. The bioretention area site plan detail gives the general length and width of the maximum ponding depth contour for the bioretention area (11.0'). The bioretention area shape and size has been modified to provide additional storage to accommodate the 1" rainfall. This was done by modifying the overflow outlet structure to increase the ponding depth to 12-inches. (reference the Bioretention Crossection Detail on the revised Sheet 5) 11Servcrlprojects123 New Bern1230281CorrespondenceV TR 05 0609 LewisDWQ StormwaterAppResubmittai CfC 3r2.doe >� Clartan, Sr, P.E., Inc. Ms, Linda Levis June 9, 2005 Page ; of 4 7. Please provide a table of elevations, areas, incremental volumes and accumulated volumes beginning at the bottom of the pond up to the temporary pool elevation to support your conclusions that sufficient volume has been provided in the pond and in the forebay. Please reference Attachment #6. This table includes the requested information. in addition, it contains the same type of information for the bioretention area. 8. Please provide volume calculations for the bioretention area, similar to the pond. The bioretention system must provide sufficient volume for the 1" storm. Please reference Attachment #6. 9. Please provide a minimum 10' wide vegetated shelf around the pond. The dimension of the vegetated shelf shown on Sheet 1 of the drawings (as scaled) is 10' wide. The dimension of 3'shown on the detail on Sheet 3 of the drawings was a typo. It has been revised (reference Attachment #2, a revised Sheet 3 of the drawings). ***In response to the comment concerning the 6-inch orifice for the wet pond being too small on your June 6t° fax: We have revised the detail on Sheet 3 of the drawings (see Attachment #2). Please reference Attachment #7 for the calculation of the orifice size (1.0-inch hole in end of 6-inch decant orifice pipe) gto drawdown the storm event within 2 to 5 days. 10.1 will need to check with Central Office staff regarding the validity of the outlet structure design for the bio-retention basin. Bioretention is supposed to be an offline system, similar to infiltration, where runoff bypasses prior to entering the basin. In defense of our design, the runoff was not bypassed by the bioretention basin due to site constraints and the City of New Bern requirement that the 1-yr and 10- yr post development peak flow not exceed predevelopment levels. It was essential that the storm flow be collected and routed through the wet pond to achieve the peak flow reduction. Our design of the bioretention area contains several components to inhibit potential erosion of the mulch layer by sheet flow. The first component is that the adjacent parking area draining to the bioretention area has no curbing to concentrate flow to the bioretention area. Also, the edge of the parking area, where the flow enters the bioretention area, has been graded flat at an elevation of 11.50 to distribute the flow and decrease the velocity. The second component included in the design is a long grass (sodded not seeded) area between the edge 11Scrverlprojects123 New Bem1230281Correspondencell.TR 05 0609 LewisDWQ StormwaterAppResuhmittal CTC Rldoc .. , • • �. � � . � .� is - � � , . . � � ' . � _ _ w � . v � ,.�. , . .S Clayton, Sr, P.E., Ire. Ms. Linda Leivis ,tune 9. 2005 Page 4 of 4 of the parking and the bioretention area that is at a 1 % or less slope. This grass area also has a rock trench (#4 Stone) between to the pavement and the bottom of the bioretention area to further dissipate and distribute the flow in an attempt to achieve a true sheet flow. As a further protection against erosion within the bioretention area, the design calls for a poly/jute erosion control matting to be placed on top of the final mulch layer to further stabilize against erosion. This erosion control matting should stabilize the bottom of the bioretention are until the ground cover vegetative species can grow large enough to provide stabilization. In addition, I am including Attachment 8, a revised sheet 4, due to the relocation of two details from Sheet 3. Please review these statements and the attachments referenced above. Hopefully, this will meet your approval. It was not anticipated that it would take almost three months for preliminary review comments to be returned when this package was originally submitted on March 2, 2005. As such, it would be greatly appreciated if you could review this information and respond in short order due to the City's schedule for construction of this facility. If we can answer any questions or need to send additional information, please feel free to contact me at any time. I can be contacted via email at tyrus(CDctclayton.com or at the following numbers: 910-897-7070 (office), 919-795-6302 (mobile), or 910-897-6767 (fax). If for some reason you can not contact me, please contact C. T. Clayton at the following numbers: 252-672-0304 (office), 252-671-6979 (mobile), or 252-672-8577 (fax). Sincerely, C. Tyrus Clayton, Jr., P. E. Z .a SEAL 0 % 026909 attachments 1�' f ft ' CLO cc: file C. T. Clayton Danny Meadows, City of New Bern r 1 \lS",,,\projects121 New E3ern1210281CorrespondencelLTR 0111101 lxwisDWQ StormwawAppRc,ubmittal CTC 1,2.doc �� � �4 -- �. �. � �- � i . L- ;; WAIF Michael F. Easley, Governor : t0w. 9Q ' �O G William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources 0 Alan W. Klimek, P.E. Director Division of Water Quality FAX COVER SHEET Date: June 6, 2005 No. of Pages: 2/�/ To: Tyrus Clayton, P.E. From: Linda Lewis Company: C.T. Clayton, Sr., P.E., Inc. Water Quality Section - Stormwater FAX #: 910-897-6767 FAX # 910-350-2004 Phone # 910-796-7215 DWQ Stormwater Project Number: SWA 050307 Project Name: New Bern Public Works Facility MESSAGE: Tyrus: I'm sorry I missed you earlier today. I received all 15 pages of your fax early this afternoon have reviewed it and have the following comments: The 6" orifice specified for the wet pond is much too large. Please provide me with your exact calculations for determining that 6" would draw down the 1" storm event in 2-5 days. Please size the orifice using '/2 of the head between the permanent pool elevation and the temporary pool elevation, and using only the minimum calculated 1" volume. 2. Please complete one column on the application for the pond and one for the bioretention basin. I understand that the runoff in excess of 1" is diverted to the pond, but the fact still remains that the first inch, which is what the State is only interested in, is being treated in the bioreten-tion basin. Should you choose to divert all of the overflows from the bioretention basin to the wet pond, then only one column need be completed. 3. If the elevations marked with an "x" are proposed spot elevations, please add this to the legend so it is clear. In the absence of anything to the contrary, I thought they were existing spots. North Carolina Division of Water Qualify 127 Cardinal Drive Extension Phone (910) 796-7215 Customer Servicel-877.623.6748 One Wilmington Regional Office Wilmington, NC 28405-3845 FAX (910) 350-2004 (ntemet: h2o.enr.state.nc.us NortIlCalolina An Equal OpportunitylAffirmative Action Employer— 50% Recycled110% Post Consumer Paper NaturallY Tyrus Clayton June 6, 2005 Page 2 of 2 4. 1 don't like to rely on scaling a plan when it comes to BUA calculations. Accurate dimensions are requested on the plans so that there is no discrepancy. For example, I scale a street as being 30' wide and 500' long, but you used only 28' of width and 480' of length to calculate the amount of BUA for that street. I don't think you would like it very much if I asked you to increase the BUA on the application, potentially increasing surface area and volume in the pond, because the street scaled 30' wide and 500' long. Typical dimensions are fine as long as really are typical and can be applied unilaterally. 5. The BMP document is a guideline for designing stormwater control measures. The rules require that stormwater management measures must control a specific amount of runoff, either 1" or 15', The ponded depth of the bioretention basin was increased to 9" —12" to accommodate the necessary volumes. I will verify this information with Central Office staff. ENBlarl: S:1WQSlSTORMWATIADDINF0120051SW7050307.jun06 P. 1 FILE MODE __--------------- 559 MEMORY TX COMMUNICATION RESULT REPORT ( JUN. 6.2005 1:55PM ) * * * TTI NCDENR WIRO OPTION ADDRESS (GROUP) _ _ - _ _ R�� PAGE - 9-19109976767 REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER QG P. 2/2 E-2) BUSY E-4) NO FACSIMILE CONNECTION Michael F. Easley, Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E, Director Division of Water Quality FAX COVER SHEET Date: June 6, 2005 To: Tyrus Clayton, P.E. Company: C.T. Clayton, Sr., P.E., Inc. FAX #: 910-897-6767 DWQ Stormwater Project Number; SW8 050307 Project Name: New Bern Public Works Facility MESSAGE: Tyros: No. of Pages: 2 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910.796-7215 I'm sorry I missed you earlier today. I received all 15 pages of your fax early this afternoon. I have reviewed it and have the following comments: 1. The 6" orifice specked for the wet pond is much too large. Please provide me with your exact calculations for determining that 6" would draw down the 1" storm event in 2-5 days. Please size the orifice using Y2 of the head between the permanent pool WA��9 Michael F. Easley, Governor p� QG William G. Ross, Jr., Secretary r North Carolina Department of Environment and Natural Resources >_ y p Alan W. Klimek, P.E. Director Division of Water Quality May 23, 2005 Mr. Danny Meadows, City of New Bern PO Box 1129 Director of Public Works New Bern, NC 28563-1129 Subject: Request for Additional Information Stormwater Project No. SW7 050307 Public Works Facility Craven County Dear Mr. Meadows: The Washington Regional Office received a Stormwater Management Permit Application for Public Works Facility on March 4, 2005. Due to a staff shortage in Washington, staff of the Wilmington Regional Office is conducting the review and will be issuing the permit. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Since two separate systems are being proposed, please complete one column on the application for the wet pond and one column for the bioretention system. Until the application has been modified to reflect this, I am unable to verify the design calculations. 2. Please specify the wetland species to be planted on the 6:1 shelf. 3. Please report all built -upon areas in square feet on the application. 4. Please delineate the drainage area to each proposed system. 5. Please provide sufficient proposed spot elevations to assist the Division in discerning the drainage patterns for the pavement and buildings. 6. Please provide dimensions for all proposed pavement, buildings, sidewalks, etc. Please also dimension the bottom contour of the bioretention basin. 7. Please provide a table of elevations, areas, incremental volumes and accumulated volumes beginning at the bottom of the pond up to the temporary pool elevation to support your conclusions that sufficient volume has been provided in the pond and in the forebay. 8. Please provide volume calculations for the bioretention area, similar to the pond. The bioretention system must provide sufficient volume for the 1" storm. 9. Please provide a minimum 10' wide vegetated shelf around the pond. 10.1 will need to check with Central Office staff regarding the validity of the outlet structure design for the bio-retention basin. Bioretention is supposed to be an offline system, similar to infiltration, where runoff bypasses prior to entering the basin. North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 796-7215 Customer Servicel-877.623-6748 One Wilmington Regional Office Wilmington, NC 28405-3845 FAX (910) 350-2004 Internet: h2o.enr.state.nc.us NorthCaf O/l/ina An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper Naturally Mr. Meadows May 23, 2005 Stormwater Application No. SW7 050307 Please note that this request for additional information is in response to a preliminary review. The requested information should be sent to the Wilmington Regional Office and received prior to June 23, 2005, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Linda Lewis Environmental Engineer ENB/arl: S:IWQSISTORMWATERIADDINF0120051SW7050307.may05 cc: C.T. Clayton, Sr., P.E. Linda Lewis Page 2 of 2 2, If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its issue date (if known) 3. Specify the type of project (check one): Low Density X High Density Redevelop General Permit Other 4. Additional Project Requirements (check applicable blanks): CAMA Major X Sedimentation/Erosion Control 404/401 Permit X NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project. Most of the site's stormwater will be collected into a wet detention basin. One parking lot will drain into a bio- retention area, with any overflow diverted into the wet detention basin. See attached narrative for more detail, 2. Stormwater runoff from this project drains to the Neuse 3. Total Project Area: 7.7 acres 5. How many drainage areas does the project have? 1 River basin. 4. Project Built Upon Area: 40 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Bas>n Iriformat�on y Drainage Areal Drainage Area 2 Receiving Stream Name Neuse River Receiving Stream Class SC;Sw,NSW Drainage Area 7.7 acres Existing Impervious* Area 0 acres Proposed Impervious*Area 3.1 acres % Impervious* Area (total) 40 Impervious:.Surfaee.Area . ... ;Drainage Area-1 Drainage Area 2 On -site Buildings 0.59 acres On -site Streets 0.41 acres On -site Parking 1,80 acres On -site Sidewalks Other on -site 0,30 acres Off -site Total: 3.1 acres Total: * Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 3.99 Page 2 of 4 Re: SW7 050307 Public Works Facility Subject: Re: SW7 050307 Public Works Facility From: Bill Moore <Blll.Moore@ncmail.net> Date: Wed, 25 May 2005 10:59:31 -0400 To: Linda Lewis clinda.lewis@ncmail.net> Linda Lewis wrote: Attached is my comments letter regarding this project. Bill- the outlet structure for this project is a standpipe with an orifice, located inside the basin, at the far end from the inlet. I thought bioretention was supposed to be an offline system, similar to infiltration, meaning the bypass structure was located such that the runoff could bypass before entering the basin, not after. Is this outlet structure design something you have approved in the past for bioretention? Please advise. Thanks, Linda Good Morning Linda, hope you are doing well; We have been permitting, on a case by case basis, Bioretention systems with overflow/outlet structures. I did review the old BMP manual; it states in one place that these are intended as "off-line" systems; in another section, it states that they should be offline whenever possible. There are several example figures depicting biofilters; these figures leave some room for interpretation, or question. For me, this is an example of an issue that we need to research, discuss and come to some understanding about how to handle. As you know, the BMP manual uses either 5%, or 7% as a design factor; neither of these design parameters provides for 1-inch storage. I have not had chance to review the new Draft BMP manual; maybe these issues are addressed? About the soils report; we do allow/encourage consultants to use the NRCS county soils reports. BUT, we also require on site borin,Ls (top 4-5 feet) performed by professional, to support any designed system. When appropriate, we require more extensive soils reports to support design claims by the consultant. 1 of 1 5/25/2005 1 1:02 AM T i_ `r T O H To: Scott Vinson, DWQ FAX: 252-946-9215 C.T. Clayton, Sr., Protsssional Engineer From: C.T. Clayton, Sr. Pages: 2 including this Phone: Date: May 19, 2005 Sw7a--5-z23o7 Re: NEW BERN PUBLIC WORKS FACILITY SITE WORK, NCDENR Project No. SW 70502247 Ca: Danny Meadows PIN. 23028 For Re>rew Please Comment Hard Copy to Follow X This is your Orlglnal • Comments: Scott, Please check on the status of the attached project and give me a call 252-671-6979. Thanks C.T. (0�t Xz,- J111 POST OFFICE aOX i 2794 3100 NC HM 27 EAST NEW BERN, NORTH CAROLINA 28551 COATS, WORTH CAROLINA PHONE: 252 672-0304 FAX: 252 672-8577 PHONE 9104197-7070 FAX: 910 897-6767 MOBILE: 252 671-6979 (C.T.) Email: ,&cpb cex.nal MOBILE: 919 7nVQ2 (Tyrus) Email: tyrus alaylon.com 0 e1 b-UG G UJ -1--f a 99 /v Y `7 Mic, e1 x G�xlcY. ciovan+or r Mili en G. RotJ Jr., a e,retary Off J% t,•t g GDS Norilc Cuolinn DeCyt :uanl o4'�nVircma jst AAtj Varhrr6l ?�ascurces -L an \V. Klimei, P.E. Director Division of WAZW QUniity Mr Dwiny Moadows, Stormwater Administrator City of Nevv Berri 1�0BOX 1129 New Berri- NC 2U63 Subiect- REQUEST FOR STORNIWATER KANAGEMBNT PERMIT :ATPUCATION Public Works Building Storm at,rr Project No. SyV7050224 Crx"en County Dear Mr. iyleado�vs' Tbis office received a copy of your erosion eQntrol plan appiicihon for the subject project on February22, 2005 The North Carolina Administrative. Code requires any }project that must receive either Sedimentation and Erwon Con=l plan approval and/or a CAMA. Major permii to apply for and receive a Stormwater Management Permit by the Division of Waier Qualittr Any constmction on the subject slit, priot to receipt of the required perr(, t, will c-owtitute a violation of 115A NCAC 2H 1000 and may restilt ill appropriate enforcentetit u'tioll by this office. Either a Storynwater Permit Applica'Uon Package including 2 sets of plans, completed application forvi, fee, acid supportili2 documentation, or a written resp(mse regarding the vtatus of tlus project and the expected submittal date must be received in This Office no later rhap May Gl, 2005 Failure to respond tc tlli4 request may result in tine initiation of enforcement aCt1Qu, and Goftsir7action i=- 0xper-enGe a 50sequcnt delay ` Fleas reference the Storin-water Project Number above on all ttrtcSpctldence If You have any tlue&tions, please call nit al {252)-948-3848 slix mly, stoic. Vinsol] Environmental Lnl?illeer Wuhi4-�ton Regional Office CASZ`flRly VVATEK;STQKN A.MNSW 70502? 4 WARD. SV u Gen Nwth Carolina Division -1 Water 'A'gjhinglon Feg;&ng1 OffwO Fl+one (2i2) 9„6-oQ8.1 F-A-'K r'2721 r 47-9: I S Gusto.'rror Se -vice Interni: 72�; e^r slaie.nc us 933 Wuhis+gto>S S:InAre ?•la!, Wa<i+ii:g vQ NC 27M Michael F. Easley, Governor William G. Ross Jr— Secretary North Carolina Department of Environment and Natur;0 Resources April 1, 2005 Mr. Danny Meadows; Storinwater Administrator Citv of Nev,, Bern PO Box 1129 New Bern- NC 28563 Dear Mr. Meadows: 43an W. Klimek, P.E. Director Divisimt of Water Quality See ,� ��o3a7 Subject: REQUEST FOR STORMWATER MANAGEMENT PERMIT APPLICATION Public Works Building Stormwater Project No. SW7e-!%2 � Craven County This office received a cope of your erosion control plan application. for the subject project on February 22, 2005, The North Carolina Administrative Code requires any project that must receive either Sedimentation and Erosion Control Plan approval and/or a CAMA Major permit to apply for and receive a StorniNvater Management Permit by the Division of Water Quality. Any construction on the subject site, prior to receipt of the required permit. will constitute a violation of 15A NCAC 2H.1000 and may result in appropriate enforcement action by this Office. Either a Storm -water Permit Application Package including 2 sets of plarls, completed application form, fee, and supporting documentation, or a written response regarding the status of this project and the expected submittal date must be received in this Office no later than May 01, 2005, Failure to respond to this request may result in the initiation of enforcement action. and constnlction may experience a subsequent delay. Please reference the Stormwater Project Number above on all correspondence. IF you have any questions, please call me at (252)-948 8 48. i ely. Scott V1nSOD Environmental Engineer Washington Regional Office C:ISTORMWATERISTORMAPP1SW7050224 cc: C,jayton, Sr.. P.E., Inc. L/WARO. SV (.)ac NorthCai 'Nature North Carolina Division of Water Qualith' Washington Regional Office Phone (252) 946-6481 t'A..X (252) 946-9215 Customer Service Internet: h2e,err.stale,nc,us 9-l3 Washington Square Mali. Wasliington. NC 27889 1-877-623-6748 5w? 05,0901 910-897-6767 P. l L Rpr_R08 05 04:20p qAWves4 h 0o n r� Claytow, Sr:, FE., Inc C.T. Clayton, Sr., Professional Engineer M40 To: Scott Vinson, DWQ -Washington Regional Office From: C. Tyros Clayton, Jr., P. E. FAX: 252-946-9215 Phone: 252-948-3848 Pages: 3 including this Date: April 8, 2005 Re: City of New Bern Public Works Building - Stormwater Permit Application Package Cc: file, C. T. Clayton, Danny Meadows (City of New Bern -fax: 252-636-1848) P.N.: 23C28 X For Review o Comments: Mr. Vinson, X Please Comment Hard Copy to Follow This Is your Original Per my voicemail today and receipt of your letter dated April 1, 2005, attached kis a copy of the Letter of Transmittal for the Stormwater Management Permit o° Application Package that was submitted to your office via UPS on March 2, G n -73 40M. You should have received this package on March 3-+ or 4t„, 2005. Please call me at the numbers below to verify receipt of this package or if you have any questions or comments. Sincerely, C. Tyros Clayton, Jr., P. E. (910) 897-7070 (919) 795-6302 mobile PCST OFFICE BOX 12794 NEW KERN, NORTH CAROUNA 28561 PHONE: 252 672.0304 FAX: 252 672-8577 MOBILE: 252 67t-65979 (C.T.) Email: cx @gox.net 44 2 &,;4- 70~ 5 3100 NC HWY 27 EAST COATS, NORTH CAROLINA 27521 PHONE9IM7-7070 FAX: 910897-6767 MOBILE: 919 795-6302 (Tyros) Email_ tyrus@ctclayton.com °;Apr"08 05 04.14p 910-897-6767 p.2 6 K:> Cl�ytan, C.T. Clayton, Sr., Professional Engineer To: NCDENR, Division of Water Quality Washington Regional Office 943 Washington Square Mail Washington, NC 27889 2521946-6481 FAX 252/975-3716 LETTER OF TRANSMITTAL DATE, March 2, 2005 PROJECT NO: 23 iASK NO: 028 Re: City of New Bern Public Works Building Site Work Stormwater Management Plan TRANSMITTAL N07 1 PAGE 1 OF 1 WE ARE SENDING: ® Originals ® Prints ❑ Shop Drawings 0 Samples ❑ Specifications ❑ Calculations ® Other: Application & Attachments Quantity Drawing No. Rev- Description Status 1 SW Management Application -Form SWU 101 (one copy) G 1 Wet Detention Supplement -Form SWU 102 (one copy) G 1 $420 Application Fee — Check # 7838 G 2 Set of Stormwater Management Plan Drawings G 2 Stormwater Management Plan Narrative, Calculations, and Specifications (one copy includes signed original Forms SWU 101 and SWU 102) G Issue Status Code: A. Preliminary S. Fabrication Only C. For Information D. Bid E- Construction F. For Review 8 Comments G. For Approval H. See Remarks REMARKS: Please feel free to contact Tyrus Clayton @ 910-897-7070 or C- T. Clayton @ 252-672-0304 with any questions or comments. PO AGR 12744 N N aERN, NC 28551 PHONE: 252 672-0304 FA); ?52 672-857I 3100 NG Hwy 27 East, COATS, NC 27521 PHONE:919 897-7070 FAX: 010 897.8757 Signed L,4— /4" C. T rus Clayt , Jr., E. 11Jeanlprajecfs123 New BemMD281CorrespondencelLOT 05 0302 DVV0 PermitApplicalion CTCJr.doc Ap�'08 05 04:14p 910-897-6767 p.3 ' I ? 20P5 4:SIDY.. Ci CLAYIOa, 5F. U� Il^ � i w; 61chul F Ea-lry, Gnvmim WLDilrn Cl. SLOU Jr.. scanty Norru C'arnliva pepmiawt of Environment Ind Nahu'a1 Reaourece Alan W. Klimek, Y.E. Diroetor Division of Waler Quidhy April 1, 2005 Mr, Danny Meadows, Storntwater Administrator City of New Bern PO Brno 1129 New Bern, NC 28563 Subject: REQUEST FOR STORMWAM MANAGEMENT PERMiT APPLICATION Public Works Building Storrnwater Project No SW7050224 Craven County Dear Mr. MeadMS: 11i5 office 'received it copy of your erosion control plant application for the subject project on February 22, 2005. The North Carolina Administrative Code requires emy project that roust receive eitlw Sedimentation and Erosion Control plan approval andlor a CANiA. Major permit to apply for and receive a Stormwater Management Permit by the Division of Water Quality Any construction on the subject sitc, prior to receipt of the required permit, will cortstitute a violation of 15A NCAC 21-1.1000 and may result in appropriate enforcement action by this OtTicc. l idner a Storniwate: Pcnnit Application Package including 2 sets of plans, compWmd application form, fee, and supporting documentation, or a. wntien response regarding the status of this project and the expected submittal date must be reccived in this Office no later than May 01, 2C05. Failure to respond to this request may result in the initiation of enforcement action, and constniction may experiencc a subsequent delay. Pieasc re creace the Stormwater Project Number above o:, afl correspoadaace 'P you have airy questions, please call me at (252)-948-3845. Stnceri'iy, Scott Vinson Environmental Engineer Washington Regional Office C: %STOP,MWATER`,STOR%IAP PiSW705 i!294 cc, u t6a ton, sr.. P E., Inc WARD, SV Nt3rthCslt ,Ndirrr North cn:ofiaa Division of'VotX W916Y 'A!d$ riagron POSM.1{ OMW Minim (232; 946-648: FA-X r253) N6-9213 Grxtarner. Savicc !,'rwmi: n2a.arr swe.-ic o 943 W-Wh-oStai Square %U,. A'asNngam V(; :7885 1-877-67347e8 7/1 C.T. CLAYTON SR., PROFESSIONAL ENGINEER i . NC DENR I C.T. Clayton, Sr., P. Stormvrater Permit RECEIVED MAR 0 4 2005 DWQ-WARO 3/2/2005 420.00 420.00 � Clayton, Sr, P. E, Inc. C.T. clayton, Sr., Professional Engineer To: NCDENR, Division of Water Quality Washington Regional Office 943 Washington Square Mall IECEIVE Washington, NC 27889 252/946-6481 MAR 0 4 2005 FAX 252/975-3716 lL7o �� . WQ-WAR0 LETTER OF TRANSMITTAL DATE: March 2, 2005 PROJECT NO: 23 TASK NO: 028 Re: City of New Bern Public Works Building Site Work Stormwater Management Plan TRANSMITTAL NO: 1 PAGE ,I OF 1 WE ARE SENDING: ® Originals ® Prints ❑ Shop Drawings ❑ Samples ❑ Specifications ❑ Calculations ® Other: Application& Attachments Quantity Drawing No. Rev. Description Status 1 SW Management Application -Form SWU 101 (one copy) G 1 Wet Detention Supplement -Form SWU 102 (one copy) G 1 $420 Application Fee — Check # 7838 G 2 Z'n bay '0 Set of Stormwater Management Plan Drawings be�na b�ks 2 Stormwater Management Plan Narrative, Calculations, and Specifications (one copy includes signed original Forms SWU 101 and SWU 102) G Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid E. Construction F. For Review & Comments G. For Approval H. See Remarks REMARKS: Please feel free to contact Tyrus Clayton @ 910-897-7070 or C. T. Clayton @ 252-672-0304 with any questions or comments. PO Box 12794 NEW BERN, NC 26561 PHONE: 252 672-0304 FAX: 252 672-8577 3100 NC Hwy 27 East, COATS, NC 27521 PHONE:919 897-7070 FAX: 910 897-6707 Signed le, /' /� — C. T rLts Clayt96, Jr.I E. WeaMprojects123 New Bern1230281CorrespondencelLOT 05 0302 DWQ Perm itApplication CTCJr.doc FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this form and an acceptable erosion and sedimentation control plan have been completed and approved by the Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and,iif the question is not applicable or the e-mail and/or fax information unavailable, puce NIA in the�b k,? - Part A. I.' Project Name Public Works Building � FEB 2 2 2005 2. Location of land -disturbing activity: County Craven City or Township New Bern 11I1110 R® Highway/Street S. Glenburnie Rd. Latitude 3501,6gq Longitude -770 5.I51 ! 3. Approximate date land -disturbing activity will commence: 4. Purpose of deveiopment (residential, commercial, industrial, institutional, etc.): 5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 5. 6. Amount of fee enclosed: $ ADO 00 The application fee of $50,00 per acre (rounded up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $450). 7. Has an erosion and sediment control plan been filed? Yes No X Enclosed X 8. Person to contact should erosion and sediment controi issues arise during land -disturbing activity. - Name Danny Meadows E-mail Address Telephone 252-636-4025 Cell # Fax # 252-636-1848 9. Landowner(s) of Record (attach accompanied page to list additional owners): City of New Bern 252-636-4025 252-636-1848 Name Telephone Fax Number P.O. Box 1129 _ Current Mailing Address Current Street Address City State Zip City State Zip 10: Deed Book No. City of New Bern Page No. Provide a copy of the most current deed. Part B. 1. Person(s) or firm(s) who are financially responsible for the land -disturbing act€vity (Provide a comprehensive list of all responsible parties on an attached sheet): City of New Bern Name P.O, Box 1129 Current Mailing Address New Bern N.C. 28563 City State Zip E-mail Address Current Street Address City State Zip Telephone 252-636-4025 Fax Number f 2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address of the designated North Carolina Agent: Name E-mail Address Current Mailing Address Current Street Address City State Zip City State Zip Telephone Fax Number (b) If the Financially Responsible Party is a Partnership or other person engaging in business under an assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible Party is a Corporation, give name and street address of the Registered Agent: Name of Registered Agent E-mail Address Current Mailing Address Current Street Address City State Zip City State Zip Teiephone Fax Number The above information is true and correct to the best of my knowledge and belief and was provided by me under oath (This form must be signed by the Financially Responsible Person if an individual or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with the authority to execute instruments for the Financially Responsible Person). I agree to provide corrected information should there by any change in the information provided herein. Dannv Meadows rt o, not na Signature Stormwater Administrator Title or Authority Date I:ne�C .jet l'P.n1� n� a Notary Public of the County of TCL ct{' _ State of North Carolina, hereby certify that _��rtIRu I I (ILL; `�> appeared personally., before me this day and being duly swo4i acknowledged that the above form was executed by hire. A��CgLCOCOi�lDe�BO 1Nitne, � ihatnb� &'v tariai seas, this 184"- day of 20 D N qUay My commission expires G i G DETAILED NARRATIVE This project will provide a new facility for the City of New Bern Public Works Department and will involve the construction of stormwater management facilities, site grading, and road and parking lot construction. Proposed stormwater management facilities include a bioretention area and a wet detention basin. Stormwater runoff from the southern parking lot will be treated by the bioretention area before being discharged into the adjacent stream. Overflow from the bioretention area and runoff from the remainder of the site will be collected via inlets and piped to the wet detention basin for treatment. The bioretention area includes a surface representing 9.5% of the approximately 0.71 acres drainage area it serves. Subsurface drains will discharge into the adjacent stream and overflow piping will discharge into the stormwater collection system for the remainder of the site, thence into the forebay of the wet detention basin. The wet detention basin is adequately sized for 90% TSS removal with a 3.1% SA/DA ratio for a 4.5 ft deep permanent pool. Peak discharge into the adjacent stream for a 10- year design storm is 5.3 efs, well below the 13.5 cfs of the undeveloped site. City of New Bern Public Works Building February 2005 Stormwater Management Plan CTC # 0023028 Form SWU-101 Page 2A of 4 NOW— Die t� o���Josf�v_ol,ed gGicLle� c.{yy e the r P 5 e_rJ �. e rY,-7 ,'IL _/ J,' er ne 11_0� ce t,J O eJ I CJ s f,' 1 ) , ke .na,' I 4-o L")e le f eq,- 'er- v}-( e e f -- w ; + L, I c cr 11 e .--1 G 1' i a r PC,�;—Id a, Von, Sr., P.E., Inc. C. Tyrus Clayton, Jr., P.E. Vice President Phone: (910)897-7070 3100 NC Hwy 27 East Fax: (910) 897-6767 } Coats, NC 27521 MobileNmail: (919) 795-6302 Nextel DC#: 150'135361'8 Email: tyrus@ctclayton.com Offices located in Coats and New Bern, NC 74, AUG 9, 5U i 't 1 t - � 1 - T. _ T �� � Vl ` �� k � � J, C 1 �. n Ln l4/l��i DA1 DETENTION POND DRAINAGE AREA BIORETENTION UKRLAp- NOTE: DA1 INCLUDES DA2 FOR ALL STORMWATER FL0W OVER A 1 " RAINFALL. —y1 D,rret fi on oP Stor•awatior Flew