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HomeMy WebLinkAboutWQ0002829_Other_2008081131 PROCEDURE 4 REQUEST FORM SURFACE WATER PROTECTION SECTION R'ASHINGTON REGIONAL OFFICE TO David May - Washington Aquifer Regional Supervisor FROM Thom Edgerton 252-948-3955 252-946-9215 (FAX) thom.edgerton@ncmail.net Application Number: County: Dare Date: 08/11/08 Applicant: KDHWWTP, LLC Project Name: Kill Devil Hills Retail Complex (Hairoics) Project Type: Fast -Track ® Pressure Sewer ❑ Name Change ❑ Change of Ownership ❑ Pump Station/Force Main Vacuum Sewer ❑ Gravity Sewer ❑ Flow Type: DOM ® COM ❑ IND ❑ Receiving Facility: KDHWWTP, LLC Receiving Facility Permit: WQ0002829 Flow Volume (GPD): 2,400 GPD Engineer: David M. Ryan, PE(Bissell Prof. Group) SOC Project? ❑ YES NO SEPA Project ❑ YES NO FONSI Issued? ❑ YES ❑ NO Pretreatment Program? ❑ YES NO Other Issues: .................................................................. WWTP Approval: O'YES ❑ NO Disp. Method (Spray, Drip, etc.) Approval: AYES ❑ NO ❑N/A Comments:_V Q Regional Office Signature: ate: Q _ 13 PLEASE RESPOND WITHIN FIVE DAYS OF RECEIPT JUL 0 2008 State of North Carolina Department of Environment and Natural Resources Division of Water Quality Flow Tracking/Acceptance for Sewer Extension Permit Applications (FTSE—10/07) Project Applicant Name: KDHWWTP, LLC. Project Name for which flow is being requested: Kill Devil Hills Retail Complex (Hairoics) More than one FTSE-10107 may be required for a single project if the owner of the WWTP is not responsible for all pump stations along the route of the proposed wastewater flow. I. Complete this section only if you are the owner of the wastewater treatment plant. a. WWTP Facility Name: KDHWWTP b. WWTP Facility Permit #: WQ0002829 All flows are in MGD c. WWTP facility's permitted flow 0.5000 d. Estimated obligated flow not yet tributary to the WWTP 0. jog e. WWTP facility's actual avg. flow O. I 2.l f. Total flow for this specific request 0.0024 g. Total actual and obligated flows to the facility 0.2539 h. Percent of permitted flow used 50,a II. Complete this section for each pump station you are responsible for along the route of this proposed wastewater flow. List pump stations located between the project connection point and the WWTP Pump Station Name Approx. Capacity, MGD Approx. Current Avg. (Firm/Design) Daily Flow, MGD N/A * 2o0'7 12 Mvwt}i AVE7at4e ,P-PU0X0 -506FM AffACRC-0 III.tification nt: 1= Gcopr,::Ij c'-� T Z 3- QB certify that, to the best of my knowledge, the addition of the v e of er to e perms s project has been evaluated along the route to the receiving wastewater treatment facility and that the flow from this project is not anticipated to cause any capacity related sanitary sewer overflows or overburden any downstream pump station en route to the receiving treatment plant under normal circumstances. This analysis has been performed in accordance with local established policies and procedures using the best available data. This certification applies to those items listed above in Sections I and II for which I am the responsible party. Signature of this form indicates acceptance of this wastewater flow. Signing Official Signature Date I July 28, 2008 771 C10talf ff "Project Narrative for Kill Devil Hills Commercial/Retail Complex (Hairoics)"- Lift Station k1� F. 35'�, If E. - �: L? This application encompasses the engineered design of a proposed individual lift station to service the Kill Devil Bills Commercial Retail Complex (Hairoics) located @ 1314 South Croatan Hwy., in the township of Kill Devil Hills, Dare County, North Carolina for connection to the existing KDHWW'IP, LLC, an authorized NC Private Utility Company. The proposed development will consist of multiple retail businesses contained within a single commercial structure that is anticipated to generate an average daily design waste flow of approximately 2,400 gpd, (see attached breakdown of associative uses). The proposed plan will consist of a 6" diameter gravity influent line to a proposed 6' diameter wet well containing a duplex pumping system. A separate 1,500 gallon Grease Interceptor is located upstream of the lift station to accept any waste generation from the proposed food service facility prior to conveyance into the wet well. The wet well has been outfitted with the following system components; • A duplex pumping system w/associative controls • 24-Hours of emergency storage • A remote telemetry system w/battery backup • A portable generator receptacle • A manual dis-connect switch • A valve vault with a duplex check valve/gate valve configuration • A 4" dia. force main The design of the lift station and force main components is designed in accordance with the guidelines set forth in NCDENR-DWQ NCAC 15A 02T.0305 Waste Not Discharged to Surface Waters. The proposed 6001.f. force main will be routed via the subject property along the Blue Jay St. western right-of-way margin, along the northern Holly St. northern right-of-way margin for connection into the 6"o pvc force main located along the Goldie Street western right-of-way margin for conveyance to the KDHWWI'P . All access hatches and enclosures will be padlocked to prevent unauthorized, access to the system controls. Once constructed, this system will be maintained and managed by Envirotech, LLC the management entity for the wastewater treatment plant and collection system. P.O. Box 1068 ■ 3512 N. Croatan Hwy. a Kitty Hawk, NC 27949 252-261-3266e Fax:252-261-1760■E-mail:bpg@bissellprofessionalgroup.com ti ,o+ ,t/ . •• j♦ � l£ �,}!'l t 4 �>.95'��'1e.�i!'+�SY. r�, Y• � �� .U'3'•� t . , a'F �1 C f` •� f t< F j } _' y-Pt'.�., {�.{jl��r-��'�: >_ rY`4�'+G�is ?', _- .µ1 T _ . . • �I,�p� 1 Y �.t ✓lam Y S F_ t � _ � � •":� i .r ` � '�:E'� ti��t "ski— ��r`!' r � kf`� Hg _9� M •. .�}'�. -.. Ty 1 - � .I4 i•� , • \ �^+"- �+ .cam 2+ a 4.LC� ... - Ycca+ac4cY 7L i•. 4c�i,j-i -JC.,w 4�'n. :.l •�. .Y ''� :�} +• ` L( -Y+Y - ✓'„ •n II I„y• �\ \ L yZ-�ju'�i L1r �; f F.4 _ �L��,�v �t-_� r�' _F 4 i1jf4�y'r r �,`^i'9•Y'�' � , n��tG • FA .. J 4 • .i 4 S .•*1 t i edeemerI- { a .0 xa \ I 5 Y;v f' f \ R0 `i VII �i�• �l -�. yy fn d'U., OR ir...... i any 40' NAGS HAAD 5.2 KM y, 5855 / NW —Al " uB.IEcT Flaopsp_Ty INTERIOR —GEOLOGICAL EUAvi 442 KDHWWTP 0.66 MGD WWTF Re -rating PROCESS ANALYSIS AND EXPECTED PERFORMANCE FOR PROJECTED FLOWS AND LOADINGS Copyright ® 2002 ECES Group,LLC, All M lhts Reserved Parameter Unit Wastewater Temp.-10Deq.0 Wastewater TemP.-20Dea.0 Wastewater Tem . - 30 Dog. C ADF MMF MDF PHF ADF MMF MDF PHF ADF MMF I MDF PHF Alkallnity Balance ALk"tty Coeftk:{erlt For NltrHlcatbn Alkalln Required For Nitrification Oxygen Requirements LbA-b. PPD 7.14 1,545 7.14 2,097 7.14 2,589 - - 7.14 1,588 7.14 2 173 7.14 70d - 7.14 1 812 2 215 7.14J2436 - IMtuent CBOD5 CBODS Removed PPD PPD PPD 1,376 11 1365 1,927 21 1906 2,436 32 404 - - - 1,376 12 1364 1,927 21 1,906 436 32 2404 1 378 13 1363 1 927E1Tluenl 22CBODS 1 904 Oxygen Coefficient For CBOD5 Removal LbA-b. 2.00 2.00 2.00 - 2.00 2.00 2.00 - 2.00 2.00 2.00 Oxygen Required For CBOD5 Removal PPD 21729 3,812 4,807 - 2,728 3.811 4 808 - 2,726 3,1309 4,806 Oxygen Coefficient For Nitrification LbJLb. 4.60 4.60 4.60 - 4.60 4.60 4.60 4.60 4.60 4.60 Tl(N Converted To Nitrate PPD 216 294 363 - 222 304 379 228 310 387 Oxygen Required For N"calion Net Oxygen Requirement PPD PPD 995 3 725 1,351 5,162 1,668 6,475 - - 1,023 3,752 1,400 5,212 1,742 6,550 - 1,038 3 764 1 427 5,236 1,781 6,587 Clartfler Loadings Number Of Units Each 2 2 2 2 2 2 2 2 2 1 2 2 2 Clarifier Diameter Feet 38.30 38.30 38.30 38.30 1 38.30 38.30 38.30 38.30 38.30 1 38.30 38.30 38.30 Surface Area SF 2,304 2,304 2,304 2,334 2,3064 2 304 1 2,504 2,3064 2 304 2,304 2,304 2,304 Weir Diameter Feet 10.25 10.25 10.25 10.25 10.25 10.25 1 10.25 10.25 10.25 10.25 10.25 10.25 Weir Length Feet 64 64 64 6.4 64 64 64 64 64 64 64 64 RAS Flow MGD 0.825 1.155 1.460 - 0.825 1.155 1.480 0.825 1.155 1.460 Overflow Rate GPD/SF 286 401 507 650 286 401 507 650 286 401 507 650 Weir Loading GPD/LF 10,248 14,347 18,139 23,263 10,248 14,347 18,139 23,263 10,248 14,347 18.139 23,263 Sollds Loading PPD/SF 21.5 30.1 38.1 - 21.5 30.1 38.1 21.5 30.1 38.1 Diffused Aeratlon System Analysis Actual Oxygenation Rate (AOR) PPD 3,725 5,162 6,475 - 3 752 5,212 6,550 - 3 76.4 5.236 6,587 - Aerobic SRT Days 19.9 12.8 9.5 - 22.1 14.4 10.7 23.7 15.5 11.6 Alpha - 0.70 0.70 0.70 - 0.70 0.70 0.70 - 0.70 0.70 0.70 Beta - 0.97 0.97 0.98 - 0.97 0.97 0.97 - 0.97 0.97 1 0.97 - DO Saturation In Clean Water 20 Deg. C S 100% RH 9.09 9.09 9.09 - 9.09 9.09 9.09 9.09 9.09 9.09 DO Saturation In Clean Water S edfied Temp. 3 100% RH m 11.29 1119 . 11.29 - 9.09 9.09 9.09 7.58 7.56 7.56 Tau - 1.24 1.24 1.24 - 1.00 1.00 1.00 0.83 0.83 0.83 Standard AtmosphericPressure 14.70 14.70 14.70 - 14 77 14.70 14.70 14.70 14.70 14.70 Barometric Pressure psi 14.70 14.70 14.70 - 14.16 14.70 14.70 14.70 14.70 14.70 Saturated Vapor Pressure of Water 20 Deg. C psi 0.34 0.3.4 0.34 - 0.34 0.34 0.34 0.34 0.34 0.34 Saturated VaporPressure of Water S Temperature I 0.18 0.18 0.18 - 0.34 0.34 0.34 0.62 0.62 0.62 Effective Saturation De Feet 7.50 7.50 7.50 - 7.50 7.50 7.50 7.50 7.50 7.50 Omega - 1.00 1.00 1.0.0 - 1.D0 1.00 1.00 1.00 1.00 1.00 Corrected DO Saturation In Clean Water 20 . C 3 100% RH 11.15 11.15 11.15 - 11.15 11.15 11.15 11.15 11.15 11.15 Operating DO mgfL 2.00 2.00 1.00 - 2.00 2.00 1.00 1- 2.00 2.D0 1.00 OTRf/SOTR - 0.57 0.56 0.61 - 0.56 0.55 0.61 - 0.56 0.56- Standard Oxygen Transfer Efficiency Percent 5.60 5.60 5.60 - 5.60 5.60 5.60 5.60 5.110 5.60 Field Oxygen Transfer Effiden Percent 3.18 3.16 3.43 - 3.11 3.09 3.43 3.13 3.11 3.55 - Air Flow Regubred For Biological Process SCFM 1 4,678 6,517 7,538 - 4,814 6,722 1 7,611 - 4,798 8 708I 7,407 I-