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HomeMy WebLinkAboutSW8060704_HISTORICAL FILE_20060721STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO, SW Stra'77( DOC TYPE El CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE .?!T/JlQ(J%t YYYYMMDD STORMWATER DIVISION CODING SHEET NCS PERMITS PERMIT NO. DOC TYPE ❑ FINAL PERMIT ❑ MONITORING REPORTS ❑ APPLICATION ❑ COMPLIANCE ❑ OTHER DOC DATE ❑ YYYYMMDD State Stormwater Management Systems Permit No. SW8 060704 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO John A. Psilos and PerryKratsa, Owners Charleston Place Onslow County ISIZONEWIM construction, operation and maintenance of two wet detention ponds in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until July 21, 2016, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 228,897 square feet of impervious area (Pond #1=107,679 sq ft; Pond #2=121,218 sq ft). 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. The built -upon area for the future development is limited to 18,587 square feet (Drainage Area #1=8,757 sq ft; Drainage Area #2=9,830 sq ft) and is included in the built -upon area totals listed in Section 1.2 of this permit. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 2 of 7 State Stormwater Management Systems Permit No. SW8 060704 6. The following design criteria have been provided in the wet detention pond and must be maintained at design conditions: Design Criteria Pond #1 Pond #2 a. Drainage Area, acres: Onsite, ft2 Offsite, ft2 3.33 145,040 None 3.77 164,431 None b. Total Impervious Surfaces, ft OS Bldgs, ft2 OS Streets/Prkg, ft2 OS Sidewalks, ft2 OS Other, ft2 OS Future, ft2 107,679 25,236 64,977 8,343 246 8,757 121,218 30,749 68,757 11,162 720 9,830 c. Design Storm, inches 1.0 1.0 d. Pond Depth, ft 7.0 7.0 e. TSS removal efficiency, % 90 90 f. Permanent Pool Elev., FMSL 44.5 44.0 g. Perm. Pool Surface Area, ft 4,819 5,275 h. Permitted Storage Volume, ft 8,716 9,924 i. Temporary Storage Elev., FMSL 46.06 45.62 j. Controlling Orifice, "0 pipe 1.25 1.25 k. Permitted Forebay Volume, ft 2,293 2,865 I, Receiving Stream/River Basin UT Northeast Creek! White Oak m.Stream Index Number 19-16-(0.5) n. Classification of Water Body SC; NSW o. Max. horsepower for a fountain 118 118 R. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. c. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes- in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. . Page 3 of 7 State Stormwater Management Systems Permit No. SW8 060704 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria: a. The fountain must draw its water from less than 2' below the permanent pool surface. b. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. c. The falling water from the fountain must be centered in the pond, away from the shoreline. d. The maximum horsepower for a fountain in either pond is 118 horsepower. 6. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to'the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. c. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. Page 4 of 7 State Stormwater Management Systems Permit No. SW8 060704 13, The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. Permit issued this the 21 st day of July 2006. NORTH:OLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No. SW8 060704 Page 1 of 2 Charleston Place Stormwater Permit No. SW8 060704 Onslow County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ 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. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No. SW8 060704 Page 2 of 2 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. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the -approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Mike Morris, Onslow County Building Inspections Page 7 of 7 Design Calculations Stormwater Treatment Facilities for Charleston Place Pond 1 locatod in Onslow County 1. PROJECT DESCRIPTION CA L 148 The Project consists of proposed apartment complex on a 7.2 acre tract in Jacksonvi 2. COMPUTE POND AREA REQUIRED a. Compute Percent Impervious: Impervious Areas: On -Site Buildings On -Site Streets On -Site Parking On -Site Sidewalks Other on -site Off -site Sub -Total FUTURE FUTURE(reserved) Total Total Area Drainage to Pond: Percent Impervious = b. Compute Pond Surface Area 0,742 or 3UL 0 6 Z005 ,.ELig 06o, 11,357 87,565 98,922 SF 74.2 % 145,040 SF Using Surface Area to Drainage Area Ratio Chart for 90% TSS Removal (copy attached) and "foot Pond de pth: pth: e 14. SA/DA z X (interpolated) Z Therefore: Surface Area = SA/DA x Drainage Area 4,514 SF say SF c. Compute Minimum Pond Dimensions Assume rectangular shape with 31 Length (L)toWidth 0W\Ratio: Length = 130.24fem1 Width = 40.08 feet Site conditions, however, dictate irregular shaped pon6� Hydr. Length = feet so. Hv6r. Width 36.5 feet(avg) Actual L/VV= 3.0 (irregular shape) 3. DETERMINE VOLUME TO BE CONTROLLED FROM 1" STORM Using Schuler "Simple Mathod^: Rv=0.O5+D.0OQ(|) where = percent impervious Rv= 0.718 in/in Control Volume = Design Rainfall x Rv x Drainage Area 4. DETERMINE REQUIRED STORAGE DEPTH Assume: 31side slopes solving for depth (d) by trial & error: d = 1.58 5. DETERMINE ORIFICE SIZE Control Volume must 6edrawn down over o3day '5day period. Using orifice equation, solve for Diameter (0)that results in3-1/2day period: "o Where: O=(Control Volume / 3.5dmvm x 86,400son/dav) h=d/3 = 0.78 Solving for O: D = 1.13 Use":'''':-" pipe Actual Drawdown with actual drawdown pipe diameter (using orifice equation): Q= 0.036 cfs Draw Down Period = 2.84 days OK, < 5.0 6. SELECT OUTLET STRUCTURE DIAMETER Size outlet structure such that depth of Q10 flow <1.0 feet: Using Rational Formula (Q=CIA) where: Cimper = €<L38 Cpery = MEOW ).N:�: Ccum = .,n.,.::>0.60<. 110 = A inlhr A = 3.33 ac Q10 = 14.29 cfs Assuming 1/2 circumference is used as weir and using Francis Formula (Q=3.33LH1'5) to solve for L such that H = 1.0: L = 4.29 Feet Min 30 inch diameter outlet structure Use 48 inch diameter outlet structure 7. DETERMINE Q10 STAGE 010 = 14.29 cfs Using Francis Formula (Q=3.33LH"5) solve for H: H 10 = 0.78 feet 8. DETERMINE Q100 STAGE (ELEV. OF EMERGENCY SPILLWAY) Using Rational Formula (Q =CIA) where: Ccum = 0.60 1100 = <'t inlhr A = ...,...-..:. ?3.33f ac Q100 = 16.94 Using Francis Formula (0=3.33LH"5) solve for H: H 100 = 0.87 feet 9. DETERMINE Q100 STAGE OVER EMERGENCY SPILLWAY (TOP BERM ELEV.) Assume primary spillway blocked (i.e., emergency spillway to accommodate 0100) Emergency spillway shall be a broad crested earthern weir designed to pass 100 year storm. Using broad crested weir equation H = (Q/Cw x L),3 where: Q = Q 100 16.94 cfs Cw = 3.0 Length..............',33 feet H = 0.33 feet 10. FOREBAY SIZING Compute Actual Pond Volumes (using average end method): Main Bay Volume Pond Bottom Bottom Veg Shelf Normal Pond Main Bay Volume = Forebay Volume Pond Bottom Normal Pond Forebay Volume = Total Pond Volume = Forebay Volume equates to Avg Incr. Incr. Cum. eva ' Area S Area th T Vol (CF) Vol CF :.:... :.:....:... .........:1,5 795 5.33 4,237 4,237 44 54 3 925 2.742 1.67 4,579 8,816 8,816 CF Elevation Area (SE Area S Depth (FT) VolCF Vol (CF] 39.503i 44.50 .:69 459 5.00 2,293 2,293 2,293 CF 11,109 CF 20.6 % of Total Volume Temp. Storage Volume : Elevation Area S Area (SF) Depth T Vol (CF) Vol(CFl Normal Pond 44.50 4,819 Temp. Pond Level 46 6$6,35 5,587 1.56 8,716 8,716 Temp. Pool Volume = 8,716 CF .7 10 Y_r Storage Volume ration Area (SF AceaSF Depth (FT) Vol (CFl VolC Temp Pond Level 46.06 6,355 Temp. Pond Level 4t3 E3 7,175: 6,765 0.78 5,246 5,246 Temp. Pool Volume = 5,246 CF 100 Yr Storage Volume Elevation Area (SF Area SF Depth FT VolC Vol (CF) Temp Pond Level 46.06 6,355 Temp. Pond Level 46 &3 7272 6,814 0.87 5,918 5,918 Temp. Pool Volume = 5,918 CF 11. SUMMARY Pond Elevations: Top Berm (minimum) H= 0.33 100-Yr, Flood H100 = 0.87 10-Yr. Flood H10 = 0.78 1-inch Storage storage depth = 1.56 Permanent Pool pond depth = 7 Pond Bottom 12. WET DETENTION BASIN SUPPLEMENT Basin Bottom Elevation 37.50 Perm. Pool Elevation 44.50 Temp. Pool Elevation 46.06 Perm Pool Surface Area 4,819 SF Drainage Area 3.33 AC Impervious Area 2.47 AC Perm. Pool Volume 11,109 CF Temp Pool Volume 8,716 CF Forebay Volume 2,293 CF SA/DA 3,112 Diameter of Orifice 1.25 Design Rainfall 1,, Design TSS Removal 90% Relative Actual 9.76 47.26 9.43 46.93 (emerg. weir elev) 9.34 46.84 8.56 46.06 (primary weir elev) 7.00 44.50 (invert out elev) Design Calculations Stormwater Treatment Facilities for Charleston Place Pond 2 located in Onslow County 1. PROJECT DESCRIPTION The Project consists of proposed apartment complex on a 7.2 acre tract in Jacksonville. 2. COMPUTE POND AREA REQUIRED a. Compute Percent Impervious: Impervious Areas: On -Site Buildings On -Site Streets On -Site Parking On -Site Sidewalks Other on -site Off -site Sub -Total FUTURE FUTURE(reserved) Total Total Area Drainage to Pond: Percent Impervious = b. Compute Pond Surface Area 13,089 98,299 . .............. 0 9,830 13,089 108,129 0.737 or 73.7 % Total 30,749 SF 10,861 SF 57,896 SF 11,162 SF 720 0 111,388 SF Q 9,830 SF 121,218 SF ......................... 164,43i SF Using Surface Area to Drainage Area Ratio Chart for 90% TSS Removal (copy attached) and assuming V foot pondclepth: SA/DA (interpolated) Therefore: Surface Area = SA/DA x Drainage Area 5,074 SF say s"sNT JSF .. 1 c. Compute Minimum Pond Dimensions Assume rectangular shape with 3:1 Length (L) to Width (W) Ratio: Length = 125.80 feet Width = 41.93 feet Site conditionn, hmwever, dictate irregular shaped pond: Hydr. Length = feet Actual L/VV= 3.8 (irregular shape) 3. DETERMINE VOLUME TO BE CONTROLLED FROM 11" STORM Using Schuler "Simple Method": Rv= 0.05+8.089|\ where | = percent impervious Rv= 0.713in/in Control Volume = Design Rainfall x Rv x Drainage Area 4.DETERMINE REQUIRED STORAGE DEPTH Assume: 31side slopes solving for depth (d) by trial & error: d = 1.02 8\DETERMINE ORIFICE SIZE Control Volume must bmdrawn down over a2day '5day period. Using orifice equation, solve for Diameter (D) that results in 3-1/2 day period: D=({}/U.U28(h)»)o Where: Q=(Control Volume / 3.5dayo x 86,400nee/d y) = O.U33cfa h=d/2 = O.8l Solving for O: D = 1.19 Uses:......:....`'<"" pipe Actual Drawdown with actual drawdown pipe diameter (using orifice equation): Q= 0.037 cfs Draw Down Period = 3.17 days OK, a 5.0 6. SELECT OUTLET STRUCTURE DIAMETER Size outlet structure such that depth of Q10 flow <1.0 feet: Using Rational Formula (Q=CIA) where: Cimper = s>€78 Cpery=,...,..._.w...=_ Ccum = 0.59 Q10 = 16.09 cfs Assuming 1/2 circumference is used as weir and using Francis Formula (Q=3.33LH"5) to solve for L such that H = 1.0: L = 4.83 Feet Min 36 inch diameter outlet structure Use 48 inch diameter outlet structure 7. DETERMINE 010 STAGE Q10 = 16.09 cfs Using Francis Formula (Q=3.331-1-l") solve for H: H 10 = 0.84 feet 8. DETERMINE Q100 STAGE (ELEV. OF EMERGENCY SPILLWAY) Using Rational Formula (Q=CIA) where: Ccum = 0.59 1100 — ^?l # in/hr A = 3.77 ac Q100 = 19.08 Using Francis Formula (0=3.33LH"s) solve for H: H 100 = 0.94 feet 9. DETERMINE Q100 STAGE OVER EMERGENCY SPILLWAY (TOP BERM ELEV.) Assume primary spillway blocked (i.e., emergency spillway to accommodate Q100) Emergency spillway shall be a broad crested earthern weir designed to pass 100 year storm. Using broad crested weir equation H = (Q1Cw x Lf/3 where: Q = Q100 19.08 cfs Cw = 3.0 Length =3 feet H = 0.36 feet 10. FOREBAY SIZING Compute Actual Pond Volumes (using average end method) Avg Incr. Incr. Cum. Main ay Volume: Elevation Area (SF Area F Depth (FT Vol C VolC Pond Bottom Bottom Veg Shelf man 999 5.33 5,325 5,325 NormalPond 3,091 1.67 5,161 10,486;> Main Bay Volume = 10,486 CF Fotebay Volumg ELeyvgtjon Are SF Area SFDepth FT Vol CF Vol _ I (CF) Pond Bottom 38.00'>'<>`<€5€ Normal Pond 478 6.00 2,865 2,865 Forebay Volume = 2t865_CF Total Pond Volume = 13,351 CF ✓ Forebay Volume equates to 21.5 % of Total Volume ✓ Temp.StQrAge VoluMe Elevation ALeg SF ea S Depth (FT]Vol C VolC Normal Pond 44.00 Temp. Pond Level ,5,27.5 45 62 6;87X 6,126 1.62 9,924 9,924 t Temp. Pool Volume = 9,924 CF n„atorage Volume : ev t' Area S A ea S t T Vol CVol C Temp Pond Level 45.62 6,977 Temp. Pond Level 7,448 0.84 6,252 6,252 Temp. Pool Volume = 6,252 CF 100 Yr Storage Volume Elevation Area SArea S Depth (FT) Vol (CF VolC Temp Pond Level 45.62 6,977 Temp. Pond Level 46 5fi: 8;033'. 7,505 0.94 7,057 7,057 Temp. Pool Volume = 7,057 CF 11. SUMMARY Pond Elevations: Top Berm (minimum) H= 0.36 100-Yr. Flood H100 = 0.94 10-Yr. Flood H10 = 0.84 1-inch Storage storage depth = 1.62 Permanent Pool Pond depth = 7 Pond Bottom 12. WET DETENTION BASIN SUPPLEMENT Basin Bottom Elevation 37.00 Perm. Pool Elevation 44.00 Temp. Pool Elevation 45.62 Perm Pool Surface Area 5,275 SF Drainage Area 3.77 AC Impervious Area 2.78 AC Perm. Pool Volume 13,351 CF Temp Pool Volume 9,924 CF Forebay Volume 2,865 CF SA/DA 3,086 Diameter of Orifice 1.26 Design Rainfall 1" Design TSS Removal 90% Relative tual 9.92 46.92 9.56 46.56 (emerg. weir elev) 9.46 46.46 8.62 45.62 (primary weir elev) 7.00 44.00 (invert out elev) } ~ 6 2D06 Stormwater Treatment & sup Erosion Control Narrative r�.5 Charleston Place John A. Psilos and Betty Kratsa propose to construct a one hundred twenty (120) unit apartment complex on a 7.2 acre tract located on McDaniel Drive Extension (just off Commons Drive South) within the city limits of Jacksonville, N.C. The site is currently undeveloped. The project site is adjacent to an UT of Northeast Creek (SC;NSW) in the White Oak Basin. The proposed development activities are high density (percent impervious > 25 %), therefore, stormwater treatment facilities are required. The attached Stormwater Plan includes two wet detention basins. Pond 1 (4,819 sf) is situated on the eastern boundary of the tract, while Pond 2 (5,275 sf) is located at the southeastern comer of the tract. Pond 1 is sized to accommodate 107,679 square feet of impervious area, allocated as follows: Site Offsite Total Exist Proposed Buildings -0- 25,356 sf -0- 25,356 sf Streets 9,624 sf -0- -0- 9,624 sf Parking -0- 55,353 sf -0- 55,353 sf Sidewalks 1,733 sf 6,610 sf -0- 8,343 sf Other -0- 246 sf -0- 246 sf Reserve for Future -0- 8,757 sf -0- 8,757 sf Total 11,357 sf 96,322 sf -0- 1 107,679 sf Pond 2 is sized to accommodate 121,218 square feet of impervious area, allocated as follows: Site Offsite Total Exist Proposed Buildings -0- 30,749 sf -0- 30,749 sf Streets 10,861 sf -0- -0- 10,861 sf Parking -0- 57,896 sf -0- 57,896 sf Sidewalks 2,22E sf 8,934 sf -0- 11,162 sf Other -0- 720 sf -0- 720 sf Reserve for Future -0- 9,830 sf -0- 9,830 sf Total 13,089 sf 108,129 sf -0- 121,218 sf The proposed ponds are sized for 90% TSS removal. Neither pond incorporates pretreatment, other than the forebay. The ponds do not include a vegetated filter at the outlet. All stormwater emanating from impervious surfaces that is generated on -site shall be collected and directed to Pond i or Pond 2 by a system of sheet drainage, grassed swales and storm drainage pipes. The treatment system will require periodic maintenance. Maintenance frequency shall be dictated by pond depths. Pond depths shall be checked by the owner on a quarterly basis. When measured depths in Pond 1 are less than 5.25' (3.75' in the forebay), the pond shall be manually dewatered (pump) and accumulated sediment removed and properly disposed of. When measured depths in Pond 2 are less than 5.25' (4.50' in the forebay), the pond shall be manually dewatered (pump) and accumulated sediment removed and properly disposed of. Site topography is gently sloping (0 - 5%) generally toward the southern boundary of the tract. Soils are loamy sand/sandy loam. The entire area designated within "Clearing Limits" will be disturbed during initial construction. The developer intends to construct buildings upon conclusion of infrastructure (parking, drainage, water & sewer). [F'wd: Re: Charleston Place APTS Retention Pond Permit] Subject: [Fwd: Re: Charleston Place APTS Retention Pond Permit] v ' From: Linda Lewis <lindalewis@ncmail.net> J `j Date: Tue, 24 Mar 2009 14:42:16 -0400 To: 7o Casmer <jo.casmer@ncmail.net> Jo, this is the mailing address for that 060704 permit Charleston Place Apartments. Thanks, Linda Email correspondence to and from this address may be subject to the North Carolina Public Records law and may be disclosed to third parties. Subject: Re: Re: Charleston Place APTS Retention Pond Permit From: <jlozada scr@bizec.rr.com> Date: Tue, 24 Mar 2009 13:19:57 -0500 To: Linda Lewis <linda.lewis@ncmail.net> Hi Linda, Thanks so much. John Psilos is the owner of our project/apartments. Here is my mailing address: Southeastern Carolina Realty 3257 Henderson Drive EXT Jacksonville, NC 28546 910-455--4160 Thanks so much. I so need a copy of that permit and Mr. Early the retention pond specialist highly recommended you. Take Care Jeanie @ SCR From: Linda Lewis <Iinda.lewis@ncmail.net> Date: 2009/03/24 Tue AM 11:28:31 EST To: jlozada scr@bizec.rr.com CC: Jo Casmer <'o.casmer@ncmail.net> Subject: Re: Charleston Place APTS Retention Pond Permit Jeanie: I never received confirmation regarding the permit number. I think it may be SW8 060704, but I am not sure, as I have 2 projects in Onslow County called Charleston Place, one issued to Garland & Sue Tuton and one issued to John Psilos. I'll have my admin staff person make a copy of the permit for John Psilos, SW8 060704 and send it to you. Can you please forward your mailing address? I of 2 3/24/2009 3:08 PM t,ll. '-r i .:I,�j' I Si ! . i!! ,'.,i'' '[i f .. !1 . I''(' ,�.} t•�f`'� }!'.I\) !>'"eit},�! •,, ':�'r', .J,�`.1�;Efr rf [Fwd: Re: Charleston Place APTS Retention Pond Permit] T-hanks, Linda jlozada scr@bizec.rr.com wrote: E1 i I .�. � — -- I was referred to you by Mr. Early in Jacksonville, NC. I am looking for a copy of our permit for our retention pond and he lead me to you. We are out of commpliance and I need to update my file for the state of NC and I do not have a copy of our permit which I hear is required. What do I need to to get to you to have you help me get a copy of our permit? All I have are the blue prints of the retention ponds. Thanks so much Jeanie @ Charleston Place Apartments in Jacksonville, NC Email correspondence to and from this address may be subject to the North Carolina Public Records law and may be disclosed to third parties. Re: Charleston Place APTS Retention Pond Permit.eml Content -Type: messagelrfc$22 Content -Encoding: 7bit 2 of 2 3/24/2009 3:08 PM JOHN L. PIERCE & ASSOCIATES, P.A. LAND SURVEYING -LAND PLANNING - MAPPING P.O. Box 1685 409 Johnson Blvd. Jacksonville, NC 28541 Office: (910) 346-9800 Fax No.: (910) 346-1210 E-Mail: bettybjlp@bizec.rr.com or bj arman @ bi zec. rr.com To Mr. Paul Bartlett N.C. Department of Environment and Natural Re8oruces 127 Cardinal Drive Extension Wilmington, NC 28405 WE ARE SENDING YOU ❑ DRAWINGS ❑ ATTACHED ❑ COPY OF LETTER ❑ PRINTS ❑ CHANGE ORDER letter of transmittal DATE !OE NO. July 10, 2006 ATTF.N ON Paul Bartlett RE: Charleston Place ❑ UNDER SEPARATE COVER VIA ❑ PLANS ❑ SAMPLES ITEMS: COPIES DATE NUMBER DESCRIPTION 2 1 Signed 1 Letter from enjZjnPA-_r (Dave Newsom) 1 THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use C3 As requested ❑ Approved as submitted ❑ Approved as noted ❑ Returned for corrections ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints ❑ For review and comment ❑ For bids due ❑ Prints returned after loan to us REMARKS SIGNED Crvstal Coast Enaineerina. PA 3817-3 Freedom Way Hubert, N.C. 28539 Tel: (910) 325-0006 Fax: (910) 325-0060 Email: crystalcoasteng@b¢ec.rr.com July 6, 2006 Mr. Paul T. Bartlett, PE N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 Re: Charleston Place Onslow County Dear Mr. Bartlett, Per verbal comments relayed to John L. Pierce in your meeting with Mr. Pierce of this date, we have made the following revisions: 1. Added note concerning wetlands. Revised Stormwater Plan attached. 2. Drainage Area Supplement attached. We are hopeful that this response addresses all concerns and that the permit can be issued in the near future. _Should you have questions or additional concerns, please feel free to t)avi&"ewsom, PE // v CRYSTAL COAST ENGINEERING cc: John L. Pierce & Associates, PA 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 l 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 nam_eg,John A. Psilos Title: Address: 106 Cojack Lane Wilmington, NC 28409 Pho 910-262-8558 Signature: 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. 1, �J �f' �L ✓� tU a Notary Public for the State of n(A Ly21l0n U County of S } {��do hereby certify that, hpn ( 1dJ personally appeared before me this �_ day of—TLAC �G�1 L , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, �4114lI11111"//�/// TESTY.. NOrgR '0 s r •� ALB :o. L►C ` 0 SEAL My commission expires va W4&dA---1 Form SWU-102 Rev 3.99 Page 4 of 4 10 !�//) g4•j 1• �F�x_ �9 �lfa� NIS Ceni �Cem Cuma �,�I �• .�\ ,,.� �,. ,=�=y5,c asps..-.=xcvxs � ` � aaaa ;�•• ° l\� $ YumplLin Center CharlestonPIace �•1`V ��J � �� � /Jacksanvilt41 sgti I.s s i f �•� ��._ t Colt . �%"E , ! • may,' ',�• / • /t. 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LAND SURVEYING -LAND PLANNING - MAPPING P.O. Box 1685 409Johnson Blvd. Jacksonville, NC 28541 Office: (910) 346-9800 Fax No.: (910) 346-1210 TO Cameron Weaver N.C. Department of Environment and Natural Reseerees WE ARE SENDING YOU ❑ DRAWINGS © ATTACHED ❑ COPY OF LETTER ❑ PRINTS ❑ CHANGE ORDER letter of transmittal DATE July 6, 2006 JOB ND. ATTENTION Cameron Weaver WE Charleston Place P., ❑ UNDER SEPARATE COVER VIA t IL .� THE FOLLOWING ITEMS: ❑ PLANS ❑ SAMPLES SPECIFggATIONS COPIES DATE NUMBER DESCRIPTION 2 Sets of plans 2 Stormwater a 'lications with -:calculations 1 co of 'Request for Express Permit Review" with vicinity map & narrative previously submitted 1 Check in the amount of $4 000.00 B'Y: THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use ❑ As requested ❑ Approved as submitted ❑ Approved as noted ❑ Returned for corrections ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Retum corrected prints ❑ For review and comment ❑ For bids due 0 Prints returned after loan to us REMARKS SIGNED AGA 7�� ;JUL .�r NCDENR jj" �( Z North Carolina Department of Environment and Natural Resources 0 6 2006 127 Cardinal Drive, Wilmington NC 28405 (910) 796-7307 FAX (910) 35 0040�6) K 04 Request for Express Permit Review x/4 d?-r aV5 f 3 FILL-IN all information below and CHECK required Permlt(s). A FAX or email to Cameron. Weaver(a)ncmall.net along with a narrative and vicinity_ map of the project location. Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made. APPLICANT Name John A. Psiols & Perry Kratsa Company N/A _ Address 106 Cojack Lane City/State Wilmington NC Zip28409 County New Hanover Phone (910)262,_8558 Fax Email PROJECT Name Charleston Place PROJECT SYSTEM(S) TRIBUTARY TO Northeast Creek (STREAM NAME) White Oak RIVER BASIN ENGINEER/CONSULTANT Company John L. Pierce & Associates P.A. Address P.O. Box 1685 City/State Jacksonville Zip 2 540 County on ow Phone (910)346-9800 Fax(910)346-1210 Email bettybjlp@bizec.rr.com State or National Environmental Policy Act (SEPA, NEPA) - EA or EIS Required ❑ Yes ❑ No ❑ STREAM ORIGIN Determination; # of stream calls; Stream Name ® STORMWATER ❑ Low Density nHigh Density -Detention Pond ❑ High Density -Other Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter ❑ High Density -Infiltration ❑ Off Site ❑ COASTAL MANAGEMENT ❑ LAND QUALITY ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ Erosion and Sedimentation Control Plan with acres to be disturbed. WETLANDS (401) Wetlands on Property ❑ Yes ® No Isolated Wetlands on Property ❑ yes [gNo Check all that apply Wetlands Will Be Impacted ❑ Yes ETNo Wetland Impacts; Acre(s) Wetlands Delineation has been completed ❑ Yes ❑ No ❑ Buffers Impacted: Acre(s) USACOE Approval of Delineation completed ❑ Yes ❑ No 404 Application in process w/USACOE ❑Yes ❑No I Permit received from USACE ❑Yes [:]No 401 Application required ❑Yes ❑ No If Yes, ❑ Regular ❑ Express Additional fees, not to exceed 50% of the original Express Review permit application fee, may be charged for subsequent reviews due to the insufficiency of the permit applications. For DENR use only SUBMITTAL DATES: Fee Split for multiple permits: SW $ CAMA $ LQS $ 401 $ Total Fee Amount $ RECFJVED JUL P G 2006 BYNARRATIVE FOR CHARLESTON PLACE APARTMENTS HIGH DENSITY - DETENTION RESIDENTIAL APARTMENTS JACKSONVILLE TWP., ONSLOW COUNTY, NC JUNE 2006 This site contains 7.22 acres and is located on McDaniel Drive approximately l 75' southeast from the intersection of Commons Drive South and McDaniel Drive. The site is bound on all sides by residential property. This is a high density project wl two detention ponds. No wetlands exist. onsite 06/09/2006 13:43 910-346-1210 JOHN PIERCE SURVEYOR PAGE 02 0. ►t�A NCDENR North Carolina Department of Environment and Natural Resources 127 Cardinal Drive, Wilmington NC 28405 (910) 796-7307 FAX (910) 350-2004 Request for Express Permit Review FILL-IN all information below and CHECK required Permit(s). 71�p y.�v FAX or email to Cam_eron.Weaypr c)ncmmail.net along with a narrative and vicinity mop of the project location. Projects must be submitted by 9.00 A.M.of the review date, unless prio ar ngements are made. APPLICANT Name John A. Psiols & Perry Kra t:sa o ti,r-koepv Company —lam Address_106 Cojack Lane_ City/State Wilmington _NC Zip28409 County New Hanover Phone (.910)262-8558 Fax Email PROJECT Name Charleston Place PROJECT SYSTEM(S) TRIBUTARY TO Northeast Creek (STREAM NAME) White Oak RIVER BASIN ENGINEER/CONSULTANT Company John L. Pierce & Eissociates P.A. Address_ P.O. Box 1685 City/State Jacksonville Zip 28540 CountyOnslow Phone (99.0)346-9800 —Fax (910)346-1210 Email bett b-] @bizec.rr.com State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required ❑ Yes ❑ No ❑ STREAM ORIGIN Determination; # of stream calls; Stream Name ® S7ORMWATER ❑Low Density High Density-!]etenfio Pon ❑ High Density -Other Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter []High Density -Infiltration ❑ Off Site ❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ LAND QUALITY ❑ Erosion and Sedimentation Control Plan with acres to be disturbed. WETLANDS (401) Wetlands on Property ❑ Yes ® No Isolated Wetlands on Property ❑ yes [gNo Check all that apply Wetlands Will Be Impacted ❑ Yes nNo Wetland impacts: Acre(s) — Wetlands Delin3mtion has been completed ❑ Yes ❑ No ❑ Buffers Impacted; Acres) USA COE Apprrval of Delineation completed ❑ Yes ❑ No 404 Application in process wfUSACOE ❑Yes ❑No / Permit received from USACE ❑Yes ❑fro 401 Application required ❑Yes [] No if Yes, ❑ Regular ❑ Express Additional fees, not to exceed 50% of the original Express Review permit application fee, may be charged for subsequent reviews due to the insufficiency of the permit applications. For DENR use only . SUBMITTAL DATES: Fee Split for multiple permits: SW $� CAMA $ LOS S 401 $ Total Fee Amount $ 06/09/2006 13:43 910-346-1210 JOHN PIERCE SURVEYOR PAGE NARRATIVE .FOR C14ARLESTON PLACE APARTMENTS HIGH DENSITY - DETENTION RESIDENT, APARTMENTS JACKSO NVILLE TWP., ONSLOW COUNTY, NC ` JUNE 2006 , This site contains 7.22 acres an.d is located on McDaniel Drive approximately 175' southeast from the intersection of Commons Drive South and McDaniel Drive. The site is bound on all sides by re:,idential property. This is a .high density pro cct w/ two detention ponds. No wetlands exist. onsite / I3 3 910 345 I2l0 JOHN PIERCE SURVEYOR PAGE 04 06/0912006 13:43 910-346-1210 JOHN PIERCE SURVEYOR PAGE -TI- 'I JOHN.-L.'PlERCE� &','ASSOC(ATES,'P.A. ,t LAND SURVEYING+• LAND PLANNING-t MAPPING OFFIM-9.10, 34&9800 �1 a s A•J i FAX:,910-346-1210 +=i. �: *`' �� ;1.; rA�,•ZE-MAIL:'b` ettybjlp®bizec.rr.com, ^�,a�,� i1r+ P.0. ioxim5 orbjarman@bizec.rr.com 409 Johnson Blvd. k.JacksonvI le, NC 28541 i' Jacksonvllle, NC 28540 DATE: �d FAX NO. (910) 346-3 210 TO: FROM: NUMBER OF COPIES INCLUDING THIS PAGE '7 REMARKS - LOTS, FARMLAND AND WOODLAND 3URVEYING • SI i Z PI-ANNNG • SUBDIVISION LAYOUT - LAND DEJELOPMENT FILANMNG CONSTRUCTION SURVEYING • T OP03RAPHIC SLi?VEYING ANO MAPPING Phase I Er vlmnmenlal Ault: Risk Assessment U.!�%TopoZone - The Web's Topographic Map Page 1 of l 't 1 tOROZD�iO / l VVT -r 4 Om 5 17 o BM 47 • • '�/ 1 GOIP Ise 1 0 0.3 0.6 0.9 0 0.1 0.2 0.3 0 Map center is 340 47' 28"N, 770 23 Jacksonville North c Projection is UTM Zone 18 http://www.topozone.com/print.asp?z=l 8&n=3852 10