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HomeMy WebLinkAboutWQ0006085_20180424_Application CAPE FEAR ENGINEERING 151 Poole Rd.,Suite 100;Belville,NC,28451 TEL(910)383-1044;FAX(910)383-1045 www.capefearengineering.com Transmittal To NCDEQ -Division of Water Resources Date April 19, 2018 PERCS Unit File 427-03B "34" 1617 Mail Service Center Subject Cameron Woods Raleigh, NC 27699-1617 Phase 3B Attn Monti Hassan Sewer Permitting Re-Submittal ❑ As Requested [' For Your Files ❑ For Distribution ® For your Review/Action/Approval ❑ Sent via Mail ❑ Sent via Courier Quantity Drawing No Description 1 Copy Response Letter 1 Copy Updated FTSE 1 Copy Approved Flow Reduction Letter 1 Copy Data Compact Disc RECEIVED/DENR/DWR APR 24 2018 Water Resources Permitting Section REMARKS Please find the enclosed documents for your review If you have any questions or require additional information, please contact our office Thank you CC Cape Fear Epgineenng, Inc � File 427-03BA"34" CLJC�C.� Signed 0 • Jennifer Williams, PE Received By Date April 19 2018 Monti Hassan Environmental Engineer PERCS Unit Division of Water Resources Subject: Cameron Woods Phase 3B Sewer Permit Response Letter Monti Below are my responses to your comments dated February 16 2018 on the Cameron Woods Phase 3.B sewer permit submittal Please let me know if you have any additional questions or need anything else The FTSE has been revised to reflect the correct permit numbers 0 Confirmed This permit application is for three bedroom single family Tots These junctions are part of the 3A phase and were previously modeled and permitted The functions associated with Phase 3B are shown with flow C The letter that is included with this resubmittal has been used and approved by NCDEQ on other jobs in Brunswick County I spoke with Brunswick County about your comment and they confirmed that this letter is correct and accurate and that there is not anything else they can provide Please note that other projects in this area have recently been released rfor sewer permitting by NCDEQ using the attached letter As such we consider this Issue resolved and permit issuance should not be delayed any further Sincerely - s Ly y -�, f Jennifer W Ili-ms PE State of North Carolina i Department of Environmental Quality `Y i ill f Division of Water Resources Division of Water Resources Flow Tracking/Acceptance for Sewer Extension Applications (FTSE 04-16) Entity Requesting Allocation: Brunswick County _ Project Name for which flow is being requested: Cameron Woods -Phase 3B More than one FTSE 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: Ocean Isle Beach WWTF b. WWTP Facility Permit#: WQ0006085 All flows are in MGD c. WWTP facility's permitted flow 1.05 d. Estimated obligated flow not yet tributary to the WWTP 0.6840 e. WWTP facility's actual avg. flow 0.335 f. Total flow for this specific request 0.00189 g. Total actual and obligated flows to the facility 1.021 h. Percent of permitted flow used 97.2 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: (A) (B) (C) (D)=(B+C) (E)=(A-D) Design Obligated, Average Daily Approx. Not Yet Total Current Pump Station Firm Flow** Current Avg. Tributary Flow Plus (Name or Capacity, * (Firm/PO, Daily Flow, Daily Flow, Obligated Available Number) MGD MGD MGD MGD Flow Capacity*** Castlebrook 1.01 0.410 0.0024 0.00525 0.00765 0.402 *The Firm Capacity of any pump station is defined as the maximum pumped flow that can be achieved with the largest pump taken out of service. **Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor(pf)not less than 2.5. ***A Planning Assessment Addendum shall be attached for each pump station Iocated between the project connection point and the WWTP where the Available Capacity is<0. Downstream Facility Name (Sewer): Ocean Ridge Plantation Ph 5 Downstream Permit Number: WQ0022873 Page 1 of 6 FTSE 04-16 III. Certification Statement: I Ann Hardy, County Manager certify to the best of my knowledge that the addition of the volume of wastewater to be permitted in this 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, given the implementation of the planned improvements identified in the planning assessment where applicable. 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 plus all attached planning assessment addendums for which I am the responsible party. Signature of this form indicates acceptance of this wastewater flow. 0?/.)M7- 7)/q./1 Signing Official Signature Date Approved as to Form. ofv A . County Aitorney Page 2 of 6 r--r n r /IA t r �aF W reo? M(fiae+tr Sedgy.Gamma o c y Mien G rrr.seaelsY r" tUarth Caroirna Department of 6Mortneentand*Wel Resoutufi Q `C Alan W.fen*P.E,Daedor Co1ew H.Sas,Deputy Dotes dersianotwater(ua Y March 18,2004 Mr.Marty K.Lawing,County Manager Brunswick County Administration 45 Courthouse Drive NE • Bolivia, NC 28422 Subject: Brunswick County Flow Reduction Approval Brunswick County Dear Mr.Lawing: On November 10, 2003, the Division of Water Quality Non Discharge Permitting Unit received a flow reduction request for 190 gpdhesidence for the collection systems that the County manages andcontrofs. The Information provided consisted of previous flow reduction approvals from the Division for certain gaff course communities where the County has or is expected to take collection system ownership and/or management or data from similar communities (Southeast Brunswick Sanitary District (190 GPD)and St.James Plantation (200 GPD)). Additionally, twa1ve months of monthly wastewater data and one month of daily wastewater flow readings from the Winding River WWTP was provided. The County also plans to take over Sep TraI Plantation and Carolina Shores. Currently, the County has an effective operation and maintenance agreement for the Sea Trail Plantation WWTP. The Division retains to the ability to evaluate flow reduction requests in a manner that accounts for all pertinent factors and addresses Division concerns,even outside of 15A NCAC 2H .0219(1)(3).The following observations have been made Ws respect to this request 1. The data provided does not cover the entire County(Le.permanent residents)nor is the data fully in accordance with 15A NCAC 21-1.0219(1)(3). 2. The Division has recorded 210 GPD per unit as the allocated flow reduction for St. James. The data provided with the submittal was a request to the county health department in 1995 and ft Is unknown if a reduction was approved. However,our records reflect that a flow reduction of 210 gpd/unit was granted by the Division. 3. The Winding River data calculated flow based on 176 units although there are Division permits for approxirnateiy 1,133 tots plus a 820-student elementary school end 688 employees. This calculation based on the peak flow month of July 2003 and highest three average daily readings was 191 GPO per unit. An Engineering Certification has been received for all permits except the more recent permit Issued for the Section Q townhomes. 4. Average daily flow at Carolina Shores WWTP during the peak month of August 2003 based on the top three daily readings is 0.385 MGD. The number and type of occupied units is unknown. Nat-DischaigePermdting Unit Internet httpJJlh2aenrstate.nc.usiufprl 1617 Mail Service Ceder.Raleigh,NC 27699.1617 Tetertone (919)733-5083 Fax(919)715-6048 DEt4R CustomerSerdice Center Tetephnne 1800623-7748 An Equal apporturily Adicn Employer 501.reeycled/1CM post-cros+anerpaper Marty Cawing March 18,2404 Page 2af3 5. Average daily Uow at St.James WWTP during the peak month of Ju y 2003 based an the top three daily readings is 227,657 GPO Information from St. James indicates approximately 1,103 connections have been made. This provides an estimated 206 GPD per unit. 6. The Northeast Regional plant Is newly operational. It is unknown what flow has been diverted to this plant and adequate data is not yet available to use for lbw reduction purposes. 7. The West Brunswick Regional plant Is not yet constructed or operational so no data is available. 8. The Brunswick County Government Complex has been plagued with excessive flows and must pump and haul wastewater to stay under permitted limits. It is unclear if and how this complex plays into the flow reduction scenario. 9. Other approved flow reductions(besides the data provided)for surrounding conununifes in Brunswick County are as follows: a. Shallotte—210 GPD per unit b. Magnolia Greens/Waterford—300 GPD per 3-bedroom unit c. 904 Georgetown=185 GPD per abedroom trait d Carolina Blythe(Carolina Shares)—200 GPO per unit e. Bald Head island-305{SPD per unit 1. Si James Plantation-210 GPO per unit Based an the above observations and calculations, the Division approves the use of 210 GPD far one to three bedroom units with an addIlfonal 70 gpd for each bedroom above three for the following collection systems,once under ownership or permanent management by the County: St.James Plantation(W00012151),Winding River Plantation(W00013785)and Sea Trail Plantation(W00012748).Carolina Shores(NC0044873)can retain their flow reduction of 200 GPO/unit per the attached letter. However, the Division may re-evaluate this reduction, previously approved in 1993,to ensure flows are still aligned with that granted.__ _ . . !fat a future date,adequate data is collected(hat is representative of all the systems under Brunswick County ownership or management(i.e.the Northeast Regional and West Regional plants, coastal areas, permanent in-county areas and other resort communitleses)and such data reflects an appropriate flow rate, this flow reduction may be modified to incorporate additional areas ancVor modify the flow rates accordingly. Permit modifications must be requested to apply this value to existing connections. Regardless of the adjusted design daily wastewater flow rate.at no time shall the wastewater flows exceed the effluent limits defined in the NPOES or Non-Discharoe omit for the treatment facility or exceed the ca.ac' of the sewers downstream of an new sewer extension or service connection s. dying Mangy 18,2004 Page3of3 If you have any questions or comments regardirt~g this matter,please contact Made Dahfovic at(919)733-5083 ext.371. Since J /Alan W.laimek,RE. Attachment ars Dean Hunkeis,Wenington Rgarmi OWae Con safte.PE,NM Engheedna Mak&amha!!,St.zanies Prantatian oeanwattera,Sea Ting Ptanetbn NFVE9 Unit tM Rat PedaclanFife Octal Fika—WQOO12151,W00013785,11V00012740,N 0044873