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HomeMy WebLinkAboutSW8020120_COMPLIANCE_20030915STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW ego�'(/ DOC TYPE El CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD 0f WATER Michael F. Easley, Governor �a p William G. Ross Jr., Secretary �O North Carolina Department of Environment and Natural Resources GO Alan W. Klimek, P.E.,Director Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality September 15, 2003 CERTIFIED MAIL #7003 0500 0000 8804 3501 RETURN RECEIPT REQUESTED Mr. Ed Hill, Member/Manager Kaeco, LLC 811 Wood Cove Road Wilmington, NC 28409 Subject: NOTICE OF VIOLATION Surf City Auto Shine and Storage Stormwater Permit No. SW8 020120 Pender County Dear Mr. Hill: On September 12, 2003, Wilmington Regional Office personnel performed a Compliance Inspection of the subject project, located on Highway 50 in Surf City, Pender County, North Carolina. The inspection was performed to determine the status of compliance with Stormwater Permit Number SW8 020120, issued to you on June 20, 2002. The project has been found in violation of Stormwater Permit Number SW8 020120 , issued pursuant to the requirements of 15A NCAC 2H.1000. The violations found are: 1. Section 11.9- A permit modification is required for any redesign or addition to the approved drainage area. The drainage area contains an unpermitted offsite discharge from the property to the south. This drainage has not been addressed as of the reinspection date. Perhaps the construction of the approved retaining wail will alleviate this concern. T 2_._._ Section _11.1and...11.3m The -permitted -system -must -be -constructed -and vegetated prior to it's use as a stormwater management facility, and must be properly maintained to assure optimum efficiency. The vegetation on the slopes closest to the access road (north side) has died, and the slopes are steeper than 3:1 in places. 3. Section 11.7- The facility must be certified by an appropriate designer before the Certificate of Occupancy can be issued. The designer's certification has not been submitted, and the facility is occupied and in use. 4. Section 11.3- The permitted system must be maintained to assure optimum efficiency. The overall impression at this pond is one of mild neglect. It appears that monthly maintenance is not being performed. A 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 fi—CbEtva Mr. Hill September 15, 2003 Stormwater Permit No. SW8 020120 5. Section 11.12- Prior to the sale or lease of any portion of the property, the permittee shall provide the name, mailing address and phone number of the purchaser or lessee. Per your August 12, 2003, letter, the carwash portion of the project has been sold. The owner is required to have his/her own offsite permit. 6. Section 11.14- Within the time frame specified, the permittee shall submit a written time schedule to the Director for modifying the site to meet the minimum requirements. The letter you submitted in response to the July 8, 2003, inspection report, did not contain this date. To correct these violations you must: Provide a written "Plan of Action" which outlines the actions you will take to correct the violations and a time frame for completion of those actions, on or before October 15, 2003. 2. If the retaining wall will not be built, please either revise the project to include the offsite drainage area, and resize the pond to accommodate the increased area and volume, or reroute the drainage around the pond via an alternate method. 3. Regrade•the steep slopes to 3:1 and provide a vigorous stand of permanent vegetation. 4. Establish a monthly maintenance and inspection program. 5. Provide the name, mailing address and phone number of the purchaser of the carwash portion of this project. 6. Specify a reasonable time frame for completion of the required actions in your written response. 7. Provide the required designer's certification upon the satisfactory resolution of the above items. Failure to provide the "Plan of Action" by October 15, 2003, or to correct the Violations by tWe date designated -in tt a "Plan of Action are considered violations of 15A NCAC 21H.1000, and may result in the initiation of enforcement action which may include recommendations for the assessment of civil penalties, pursuant to NCGS 143- 215.6A. If you have any questions concerning this matter, please call Linda Lewis at (910) 395-3900. Sincerely, Rick Shiver Water Quality Regional Supervisor RSSlarl: S:1WQSISTORMWATINO ICE1020120.seo03 cc: John Klein, P.E., Wrightsville Engineering Services Pender County Building Inspections Linda Lewis Central Office 2 Mr. Hill September 15, 2003 Stormwater Permit No. SW8 020120 Surf City Auto Shine and Storage Pender County Stormwater Project No. SW8 020120 Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically 1 weekly 1 full time) the construction of the project, (Project) for (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. Required Items to be checked for this certification to be considered complete are on page 2 of this form. Noted deviations from approved plans and specifications: Signature Registration Number Date SEAT_ 3 Mr. Hill September 15, 2003 Stormwater Permit No. SW8 020120 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. The outlet/bypass structure elevations are per the approved plan. 5. The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. 7. All slopes are grassed with permanent vegetation. 8. Vegetated slopes are no steeper than 3:1. 9. The inlets are located per the approved plans and do not cause short- circuiting of the system. 10. The permitted amounts of surface area and/or volume have been provided. Requireddrawdown devices are correctly sized per the approved plans. T 12. All required design depths are provided. 13. Ail required parts of the system are provided, such as a vegetated shelf, and a forebay. 14. The dimensions of the system, as shown on the approved plans, are provided. cc: NCDENR-DWQ Pender County Building Inspector 4 C� Permit No. State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM/ WET DETENTION BASIN SUPPLEMENT This form may be photocopied for use as an original - DW Stormwater Management Plan Review: A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details. I. PROJECT INFORMATION Project Name: �"REC Contact Person: - �� 1-k % LA_ For projects with multiple basins, specify w}' elevations Basin Bottom Elevation �aZ"'a Permanent Pool Elevation_ �L1 Temporary Pool Elevation w3 E Phone Number: %0 '-Iq4- Z" :11 basin,this worksheet applies to: N 11Q (floor of the basin) (elevation of the orifice) (elevation of the discharge structure overflow) areas Permanent Pool Surface Area 35ii5' sq. ft. Drainage Area ac. Impervious Area volumes Permanent Pool Volume Temporary Pool Volume Forebay Volume Other parameters S AIDA�/ Diameter of Orifice Design Rainfall Design TSS Removal 2 Form SWU-102 Rev 3.99 1 • lZ. ac. (water surface area at the orifice elevation) (on -site and off -site drainage to the basin) (on -site and off -site drainage to the basin) l 3577 cu. ft. (combined volume of main basin and forebay) ,4A 3Z cu. ft. (volume detained above the permanent pool) Z 7 4 'cu' ft. ` (approximdtely 20% of total volume) q • (surface area to drainage area ratio from DWQ table) l • oo in. (2 to 5 day temporary pool draw -down required) t - O in. 85: % (minimum 85% required) Pagel of 4 Footnotes: 1 When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non- standard table entries. Z In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide 90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal. II. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. Applicants Initials 07"-" 6f_ d. The permanent pool depth is between 3 and 6 feet (required, minimum of 3 feet). b. The forebay volume is approximately equal to 20% of the basin volume. /C. The temporary pool controls runoff from the design storm event. d. The temporary pool draws down in 2 to 5 days. e. If required, a 30-foot vegetative filter is provided at the'outlet (include non -erosive flow calculations) Jf. The basin length to width ratio is greater than 3:1. g. The basin side slopes above the permanent pool are no steeper than 3:1. h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail). i. Vegetative cover above the permanent pool elevation is specified. j. A trash rack or similar device is provided for both the -overflow and orifice. _►alp, k. A recorded drainage easement is provided for each basin including access to nearest right- of-way. 1. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin' . ' m. A mechanism is specified which will drain the basin"fot maintenance or an emergency. III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one) 0 does @'does not incorporate a vegetated' filter at the outlet. This system (check one) 0 does "oes not incorporate pretreatment other than a forebay. Form SWU-102 Rev 3.99 Page 2 of 4 Maintenance activities shall be performed as follows: 1. After every significant runoff producing rainfall event and at least monthly: a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. ► ' . 2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.). The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. 4.1 When the permanent pool depth reads 4feet in the main pond, the sediment shall be removed. 4.1 When the permanent pool depth reads ti .r feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation (-7• 0 Sediment Re oval El. 4-'5 12.1175 ----- - Sediment Removal Elevation 1 Bottom Ele ation 1.2r5 11.5 qo------------------------------------ - Bottom Elevation i�� 1, FOREBAY MAIN POND Llev ern Gh �,�,es r�oo(e G-za-oz ,40- 75% 25 % 5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These plants shall be encouraged to grow along the vegetated shelf and forebay berm. 6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. Form SWU-102 Rev 3.99 Page 3 of 4 7. All components of the wet detention basin system shall be maintained in good working order. I acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name:�/`�aLf�r-�w�-� Title: c L...` �(-4 ZILt -(- I -%-CO Address: S l t \40- , Cove i-o ^a Phone Signat Date: 4/ - Z,7'- ` 2 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, Pawta 0. ac,o-.42w a ki , a Notary Public for the State of /VU r-� A Oa ►'-o l 1 n 5 County of A) ew I TLC tl 00 'Er' , do hereby certify that 6 r'oa dc's Ed wa r d 11 r_r t t !_ I personally appeared before me this —a3-r day of __L- Q n uci_ r V r?00 3, and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, . • r` ` SEAL - My commission expires g ^ y - 0 3 (�- a C4` r r' .;,pF Form SWU-102 Rev 3.99 Page 4 of 4 OF E WA7-R Michael F. Easley, Governor p William G. Ross Jr., Secretary �O G� North Carolina Department of Environment and Natural Resources iAlan W. Klimek, P.E.,Director p Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality July 8, 2003 Mr. Broadus E. Hill, III, Member/Manager Kaeco, LLC 811 Wood Cove Road Wilmington, NC 28409 Subject: COMPLIANCE INSPECTION Surf City Auto Shine and Storage Stormwater Project No. SW8 020120 Pender County Dear Mr. Hill: 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 July 1, 2003, to determine compliance with Stormwater Permit Number SW8 020120 issued to you on June 20, 2002. A summary of the findings and comments are noted under Section 4 of the report. Please inform this Office in writing before August 8, 2003, 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. RSS/arl cc: Sincerely, Linda Lewis Environmental Engineer S:IWQSISTORMWATIINSPECT1020120. ju103 John Klein, P.E. Wilmington Regional Office Linda Lewis N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer service ZA Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 INCDEtv'e STORMWATER COMPLIANCE INSPECTION REPORT 1 2. 3. 4 Project Name: Surf City Auto Shine and Storage Project Number: SW8 020120 Water Body: ICWW Control Measure: Wet Detention Pond Classification: SA Directions to site, address: Off Highway 50 just east of the intersection with Highway 210 near Surf City. Inspection Date: July 1, 2003 Weather Conditions:. overcast and hot Compliance Issues: a. The pond is in need of permanent grassed stabilization. b. The Designer's Certification has not been submitted. C. There is offsite runoff entering the pond from the property to the south. The ditch as shown on the approved plans does not extend up far enough to catch this runoff and divert it. d. The retaining wall as shown on the approved plan has not been constructed. Required Actions: a. Provide an immediate stand of permanent grassed vegetation, per the permanent seeding table on the approved plans. b. Have an appropriate design professional inspect the system and submit the required Designer's Certification. C. Reroute the offsite runoff or submit a modification to account for the additional drainage area. d. Construct the approved retaining wall, or submit a modification to account for this plan revision. r Inspector: Linda Lewis Water Quality/Wilmington Regional Office/(910) 395-3900 IRSSlarl: S:1WQSISTORMWATIINSPECT1020120.ju103 DETENTION POND ANALYSIS FILE NAME: G:IDATAIWPDATAIWQSIPOND1020120.WK1 PROJECT ##: SW8 020120 REVIEWER: L. Lewis PROJECT NAME: Surf City Auto -Shine and Storage DATE: 20-Jun-02 Receiving Stream: ICWW Class: SA (>112 mile) Drainage Basin: Cape Fear Index No. 18-87-(5.5) Site Area 1.63 acres Drainage Area :. �fl�7`$.;O};' square feet Area = 1.63 acres IMPERVIOUS AREAS Building Parking 111159�1111111 SURFACE AREA CALCULATION Rational C 14156.00 square feet 1.00 34721.00 square feet 1.00 square feet square feet square feet square feet 4.887a0 square feet Rational Cc= 0.75 % IMPERVIOUS 68.86% SA/DA Ratio 4.43% Des. Depth 5.5 Req. SA 3146 sf TSS: 90 Prov. SA %......:..... 575 sf VOLUME CALCULATION Rational ?` 1 Des. Storm ............::.. 1p..0: inches R v= 0.67 Bottom 11.5 msl Perm. Pool 17,0.:< msl Design Pool 18.1 msl Storage met @elev 18.1 sf Req. Volume 4443 < cf Prov. Volume €...4441.: cf ORIFICE CALCULATION Avg. Head = Flow Q2, cfs Flow Q5, cfs No. of Orifices Diameter, inches Drawdown = place a "1" in the box if Rational is used Perm. Pool Volume= 13877 Req. Forebay Volume= 2775.4 Provided Volume= 2794.00 Percent= 17.00 3575.00 0 0.00 18.00 4361 3968 3968.00 19 4916 4638.5 8606.50 COMMENTS Surface Area , Volume and Orifice are within Design Guidelines 1.06 sq. in. 0.42 sq. in. 0.79 sq. in. 0.019 cfs in x FM in U.S. Postal Service , t� _ CERTIFIED MAILT, RECEIPT (Domestic Mail Only; No lnsumince Cot e�age Provided) For delivery Information visit our ►vebshe ,-4 i1-iww:u :ps.r:c!na w � � w w 1 PS Form 3800, June 2002 V See Reverse For Instructions A O� i n 7 � ° '74:f 'r _ a 1 a e d� 4 :..% ] � . 3 ik � ;F�,"a £ - �yl"..i*': •r. s"' �` � F�;,y'�'�p; w `� a+ `�%.. .� _,�. �ri M� c1�# w.�'# �s `��. �,�4 3 Ate, .� r�.fw� .< �, ,j�r*�.,,Y '�•, "" y. .�"V � � • rrµ �i 1' b' ; f `Cv"nf. t�R,k�' '�*�{,�yri. c �. .'� ` - � i Sw1r {]� h -� ,7 r,+ `[ raI�+.y' ,r,�S.,.!^., ., �1 f : '% _ ♦ .y' ,� _ �' &+�-�".�,.° , � •1"V}a!n'�`F � �" � � +`'I'`•�:xa�" . 1 'k P ^ .,+., � s � � F�: it �,,,, ry,�,y��_r.. +,b„ rye, � �.;• �'� � `.x•• m �'• � ' i'� ✓ n� ° 4 � itk F .iil� `'! p r _ �, 3rWN �t,� i�� r ri��'i�.�'� �„�.�► f J` �• ,r _ �«w y f * ' r v , i .�_ �. it ♦ P , ! _ -M%= , s .. -� ". ah i « a P { Al � _ .� �. n�" s• „� `.. iy � .a.�,. ` ? ^..,.,,• e �'T �'° � � ° :i .� : � � "w.. � � lk.: ..�. fit'' � +r ,s y�- E' � - ^7 �'� � � ti � • N• ,..far x 1 F �S n 11�'y A �'"�jf. � mpY�. 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'' .,,,ems', ! t � 1 a . - ,� .y �" � .� q._ � «,pig .Fn �, �,•4 � aF47•t:h. f�'ti e �''' ' ' Ed Hill KAECO LLC 811 Wood Cove Rd. Wilmington, N. C. 28409 Division Of Water Quality Ms. Linda Lewis 127 Cardinal Dr. Extension Wilmington, N.C. 28405 RE: Stormwater Permit SW8 020120 Surf City Auto -Shine & Storage Plan Of Action Nov 2 5 2002 11/22/02 .Construction of the stormwater collection and"retention system will resume the week of 11/25/02 and continue until complete. Work to complete listed items ( per DWQ letter 10/24/02 shall be finished within 45 days (approx. Jan. 10, 02). Sincerely, Ed Hill KAECO LLC VIA: Fax 350-2004 Hand delivery CC: John Klien File U.S. Postak Service CERTIFIED MAIL.FiECEIPT CR (��2 (Domellc Mail Only; No Insurance Coverage Provided) FF.. USE m nn —0 Postage $ a�7� v N. CZ).,k Corti ied FesO Retum Receipt FeeC3 (Endorsement Required)Restricted Delivery Fee/ + a (Endorsement Required) j �% Uc a Totak Postage & Fees $ / S Sent To H (1 Street, apt. No.; �p� © � or PO Box No. -?If Y Y oc�-4 f� W Ve �( © .. ...................................................................... Clty, State, T1P1 ' � �' W11m,*4g%. N G 284 >9 f,C)'�,Z --0 SL, N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 (910) 395-3900 Fax (910) 350=2004 Vq A TEA. 4 'r M1ichael F. Easley, Governor- William G. Ross. Jr:, Secretary North Carolina Department of Environment and Natural Resources - October 24, 2002 CERTIFIED MAIL #7001 1940 0000 4636 3866 RETURN RECEIPT REQUESTED Mr. Broadus E. Hill, III, Member/Manager KAECO, LLC 81 l Wood Cove Road Wilmington, NC 28409 Dear Mr. Hill: Alan W. Klimek, P.E., Director Division of Water Quality Wilmington Regional Office Subject: NOTICE OF VIOLATION Surf City Auto -Shine and Storage Stormwater Permit No. SW8 020120 Onslow County On October 24, 2002, Wilmington Regional Office personnel performed a Compliance Inspection of the project known as Surf City Auto -Shine and Storage, located on NC 50/210 in Surf City, Onslow County, North Carolina. The inspection was performed to determine the status of compliance with Storm -water Permit Number SW8 020.120, issued to you on June 20, 2002. The project has been found in violation of Stormwater Permit Number SW8 020120, issued pursuant to the requirements of 15A NCAC 2H.1000. The violations found are: 1. Conditions I.5 and II.6- The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. TIIe facilities shall be constructed as shown on the approved plans. a. The approved plans show that the roof drains of the rear building are to be collected and sent to the collection system. In reality, the roof drains empty onto the ground and drain into the property behind it, not into the pond. b..- - The'required' outlet 'strucr re has -not been provided in the pond per the approved plans. C. The required forebay has not been provided per the approved plans. d. The required vegetated shelf has not bee provided. 2. Condition II.1-777e stormwater management system shall be constructed in it's entirety,, vegetated and operational for its intended use prior to the construction of any built -upon surface., The pond has not been vegetated, does not have either a vegetated shelf, or an outlet structure, or a forebay, but the storage buildings have been completed and the gravel drive is in placeVXY A*-11 NCDENR Customer Service 800-623-7748 Mr. Hill -- - - October 24. 2002 Storim\rater Permit No. S\VS 020120 To correct these violations you must I . Provide a written "Plan of Action" which outlines the actions you will take to correct the violations and a time frame for completion of those actions, on or - before November 24, 2002. - _ 2. - Construct the roof drain collection system for the rear building per the approved - plans. 3. Construct the forebay per the approved plans. 4. Construct the outlet structure per the approved plans. 5. Construct the vegetated shelf and plant it with the specified wetlands species per the approved plan. 6. Repair and stabilize the pond slopes with permanent vegetation, per the approved plan. Failure to provide the "PIan of Action" by November 24, 2002, or to correct the violations by the date designated in the "Plan of Action", are considered violations of 15A NCAC 2H.1000, and may result in the initiation of enforcement action which may include recommendations for the assessment of civil and criminal penalties, pursuant to NCGS 143-215.6A. By copy of this letter to the Onslow County Building Inspector, this Office is requesting that the Building Inspector consider withholding building permits and Certificates of Occupancy for this project until this matter is satisfactorily resolved. If you have any questions concerning this matter, please call Ms. Linda Lewis at (910) 395-3900. Sincerely, L. tom— Rick hiver Water Quality Regional Supervisor RSS:larl S:1WQSISTORMWATIN0TICE1020120.00T CC' John Klein, P.E. 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