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HomeMy WebLinkAboutWQ0044541_Application (FTSE)_20230703QWR DIvlslon of Water Resources Entity Requesting Allocation: CLT Water State of North Carolina Department of Environmental Quality Division of Water Resources Flow Tracking for Sewer Extension Applications (FTSE 10-18) Project Name for which flow is being requested: 12317 Haymarket Road & 2224 Coral Valley Road 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. L Complete this section only if you are the owner of the wastewater treatment plant. a. WWTP Facility Name: McAlpine Creek, Irwin Creek, Sugar Creek b. WWTP Facility Permit #: NC0024970, NC0024945, NCO024937 All flows are in MGD c. WWTP facility's permitted flow 99.00 d. Estimated obligated flow not yet tributary to the WWTP 15.355 e. WWTP facility's actual avg. flow 67.675 f. Total flow for this specific request 0.0024 g. Total actual and obligated flows to the facility 83.032 h. Percent of permitted flow used 83.9% I1. 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, Pump Pump Average Approx. Not Yet Total Current Station Station Firm Daily Flow** Current Tributary Flow Plus (Name or Permit Capacity, * (Firm / p f), Avg. Daily Daily Flow, Obligated Available Number) No. MGD MGD Flow, MGD MGD Flow Capacity*** Mountain Isle 0.636 0.255 0.105 0.027 0.132 0.123 Long Creek 8.5 3.4 4.634 1.103 5.737 -2.337 Paw Creek 10.7 4.28 5.746 1.177 6.923 -2.643 * The Firm Capacity (design flow) 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, per Section 2.02(A)(4)(c) of the Minimum Design Criteria. *** A Planning Assessment Addendum shall be attached for each pump station located between the project connection point and the WWTP where the Available Capacity is < 0. Downstream Facility Name (Sewer): LPSS Haymarket Road Downstream Permit Number: Unknown Page 1 of 6 FTSE 10-18 III. Certification Statement: Keri Cantrell 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 certifies that the receiving collection system or treatment works has adequate capacity to transport and treat the proposed new wastewater. ' w Digitally signed by Keri Cantrell Date: 2023.05.02 09:48:04-04'00' Adobe Acrobat version: 2023.001.20143 5/2/2023 Signing Official Signature Chief Engineer Title of Signing Official Date Page 2 of 6 FTSE 10-18 PLANNING ASSESSMENT ADDENDUM (PAA) Submit a planning assessment addendum for each pump station listed in Section II where Available Capacity is < 0. Pump Station (Name or Number): Given that: a. The proportion and amount of Obligated, Not Yet Tributary Daily Flow (C) accounts for 17 % and 1.177 MGD of the Available Capacity (E) in Pump Station Long Creek and Paw Creek ; and that b. The rate of activation of this obligated, not yet tributary capacity is currently approximately 1.177 MGD per year; and that c. A funded Capital Project that will provide the required planned capacity, namely Stowe Regional Water Resource Recovery Facility is in design or under construction with planned completion in 2026 ; and/or Paw Creek FM Replacement - 2022 d. The following applies: Paw Creek Pump Station Improvements - 2023 Charlotte Water's Capital Improvement Plan has allocated funds for improvements to the Paw Creek Pump Station Improvements and a new Stowe Regional Water Resource Recovery Facility ("Stowe Regional'). The design plan is for Stowe Regional to use the Long Creek Pump Station (LCPS) to house the second stage pumps of its influent pump station. In the short term, LCPS will also continue to house pumps which export flow to Paw Creek PS ('Paw Creek export pumps"). Currently LCPS has 8 MGD of export capacity, which will be increased to 12 MGD (firm) by the 2nd quarter of 2024. Stowe Regional is under design and expected to come online in early 2026. Before Stowe Regional is brought online, a new headworks and Influent Pumping Station building will be constructed adjacent to the LCPS, which will house the first stage influent pumps for Stowe and be the Paw Creek export pumps. Currently, Long Creek and Paw Creek operate as a combined system with the Long Creek pump station able to transfer flows to flow equalization tanks during peak flow events and then meter out flow to Paw Creek as conditions allow. Paw Creek Pump Station was awarded a permit on 8/27/2020 to increase firm pumping capacity to 20 MGD. Construction on this project has begun, and this project is anticipated to be substantially complete March 2023. The Force Main replacement project has been completed. Therefore: Given reasonably expected conditions and planning information, there is sufficient justification to allow this flow to be permitted, without a significant likelihood of over -allocating capacity in the system infrastructure. I understand that this does not relieve the collection system owner from complying with G.S. 143- 215.67(a) which prohibits the introduction of any waste in excess of the capacity of the waste disposal system. Digitally signed by Keri Cantrell � Date: 2023.05.02 09:49:48:45-04'00' Adobe Acrobat version: 2023.001.20143 5/2/2023 Signing Official Signature Date Page 3 of 6 FTSE 10-18