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HomeMy WebLinkAboutSubmittal CD Q.18, Wastewater Mana~000818. WASTEWATER MANAGEMENT A. Provide, in the table given below, the projected wastewater generation at the end of each phase of development and proposed wastewater treatment. Identify the assumptions used to project this demand. Table 18-1, Projected Wastewater Flow, provides a breakdown of the projected wastewater flow for both the remaining unreserved development program of Increment 1 and the entire development program of Increment II. At project completion, the projected wastewater flow is estimated to be 2,837,375 gpd. Projections of the average daily wastewater flow have been estimated based on Miami -Dade Water and Sewer Department (WASD) flow rates. The WASD flow rates are provided in Table 18-1, Projected Wastewater Flow under the column titled Average Daily Flow Rates. While the projected wastewater flow created by new development in Increment DI is 2,837,375 gpd, the actual flow created by Increment II will be 2,837,375 gpd minus the flow allocated for the existing development that is replaced. According to the policy of the Miami -Dade County Department of Environmental Resource Management (DERM), when an existing building is demolished for new development, the wastewater allocated for the demolished building is transferred and credited to the new development. Considering the variability of time and location for development under the DDRI, it is not practical to estimate the amount of allocated wastewater from demolished development that will be transferred to new development. While the figures provided in Table 18-1 represent the total wastewater flow created by new development in Increment II, they do not demonstrate the actual additional flow created by Increment 11, which would be significantly less. B. If applicable, generally describe the volumes, characteristics and pretreatment techniques of any industrial or other effluents prior to discharge from proposed industrial -related use(s). The industrial land uses that are likely to occur inside the DDRI are characterized as "clean" industries such as light warehousing and telecommunications hubs. These industries support the office, retail, and residential uses of the downtown and surrounding areas and do not produce any wastewater or other effluents that would require special pretreatment or disposal. Downtown Development Authority Downtown Miami DRI Update Question 18 — Wastewater Management Page 18-1 ' ^ TABUE184 PROJECTED WASTEWATER FLOW Land Use Intensity of Use Average Daily Flow Rate' Flow Total Flow Increment | Unreserved Development {$ � Offioekgsf 1.205.020 0.10god/oaf 120.502 Government) 300,000 0.100pd/gnf 3O000 Rnhai[/oaD 4,284 0.05god/osf 426 Hotel (rooms) 2.739 1OO 273900 Residential (du) 997 �- `200god/du 199/400 ConwanhonkgSO 500000 8.10 50.000 Wholesale/ Industrial (Bsf) 1.050,000 0.02god/oof � 21.000 Institutional (os0 � 280.080 DJOgud/ose 20.000 Attraction/ Recreation (meubs)� 1,820 3.00gpd/aeat 4.800 Marine Facilities (offioe)(gsf) 100.000 0.10Upd/oof 10.000 Total Increment Unreserved Flow 729.875Bpd Increment || Proposed Development Ofhco(gsO 1.380,000 0.10gpd/gof 130.000 Retail(goD 750,000 0.05gpd/gsf 75.000 Hotel (rooms) 1,500 100gpd/rnonn 150.000 Residential (du) 7.508 200gpU/du 1,500.800 Cnnvantion(gsf) 500,000 0.10gpd/gne 50.000 Wholesale/ Industrial (goO 750.000 0.02gpd7gcf 15.000 |nst[tubnno|/gnD 450,000 0.10Opd/gsf2 45.000 Attraction/ Recreation (oents), 80.008 3.00gpd/soat 188.000 Total Increment UProposed Flow 2.107.000gpd Grand Total (Unreserved Increment | and Increment ||) 2,837'375gpd Source: The Curtis & Kimball Company, Auqust 2001 Notes: 'Miami -Dade Code or Ordinances. 2 Estimated demand rate based on Miami -Dade Code of Ordinances, C. 1. If off -site treatment is planned, identify the treatment facility and attach a letter from the agency or firm providing the treatment outlining present and projected excess capacity of the treatment and transmission facilities through buUdout, any other commitments that have been made for this excess and o statement of ability to provide service at all times during orafter development. Downtown Development Authority Downtown Miami oR|Update Question 10-Wastewater Management PaQo18-2 & 2)�� Treatment of wastewater flows generated from the DDR1 will be provided by WASD. Exhibit 18-1, Letters to and from the Miami Dade Water and Sewer Department, addresses WASD's ability and capacity to provide wastewater transmission and treatment services for development in the DDRI through the Increment II buildout date in May 2009. 2. If service cannot be provided, identify the required capital improvements, cost, timing, and proposed responsible entity necessary to provide service at all times during and after development. To accommodate any new development in the Downtown area, capital improvements will need to be made to the sewer infrastructure. D. If septic tanks will be used on site, indicate the number of units to be served, general locations and any plans for eventual phase -out. As per the Agreement to Delete Questions from the Pre -application Conference held at the South Florida Regional Planning Council on March 14, 2001, a response to section 18.D is not required. E. Indicate whether proposed wastewater service will be provided within an established service area boundary. The Project Site is entirely within the service area of WASD. Downtown Development Authority Downtown Miami DRI Update Question 18 — Wastewater Management Page 18-3 EXHIBIT 18-1 (R) Letters to and from the Miami Dade Water and Sewer Department And Department of Environmental Resources Management CURTIS ktL July 5, 2001 Mr. J. Ray Rice, P.L.S. Utility Liaison Engineer Miami -Dade Water and Sewer Department 3575 South LeJeune Road Florida 33148 Re: Downtown Miami DRI Update Water and Sewer Services Dear Mr. Rice: In accordance with Chapter 380.06, Florida Statutes, regarding Developments of Regional impact, we are required to obtain information from the County's Water and Sewer Department regarding its ability to provide our project with water and sewer services. The Downtown Development Authority is applying for approval of Increment II of the Downtown Miami Development of Regional Impact (DRI). The purpose of the DRI is to simplify and expedite the process for the impact review of large-scale development. It has been used in the review of the American Airlines Arena, the Performing Arts Center of Greater Miami, and major residential and hotel projects in (he Brickell and Omni areas of downtown Miami, The project area contains approximately 880 acres of intensive urban development. Approximately 78 acres of the DR! are currently zoned and developed as City parks. An aerial map showing the project location is enclosed. Also enclosed is a summary of the development program in table form showing the proposed land uses and amounts pursuant to the guidelines and standards in Chapter 28-24, F.A.C. Increment I, which was originally approved in 1988, and Increment I, which is currently being proposed, specify the type and intensity of land use in downtown Miami through the year 2009. We will notify you if the development program for Increment I{ is adjusted. Please note that the DDA is currently proposing to expand the boundary of the Downtown DRI to make Its boundary consistent witn tne boundary of tne inrIA. This boundary expansion Is not expected to affect the development program for Increment 11. Please consider the proposed expanded boundary area in your analysis. Please indicate in your response whether or not your present facilities and staffing are capable of serving the Project. If not, please specify the additional staffing/equipment necessary to do so. Your written response will be an integral part of the DRI application process. I respectfully request your prornpt attention to this letter. If you have any questions, please do not hesitate to contact me at (30 648-0 0 moNrly 7 NrI.IIAj I. 0 r I" I A NI NI C•J („; • e„ N 1r I I", I N V I A 1 0 A 0 V ,ri L IE CURTI S& JMt3l CO M rANY /)1 AGUN,k sTRE ET COILGAB'. ES, FLORIDA 33046 i° HONE 3031643 0030 FAX 13051 64E-0052 Mr. J.Ray Rice Downtown Miami DFl|Update July 5,2OO1 Page Rob CurtiS, A|CP Enclosures xc: AdamLuk�n.Downtown Oavo|uomentAuthority Loun1exS|ozyh`City u/K1iamiP|aoning andzonin8 CathySwoetopp|a. Keith and Schnerp Paul Lambert, Lambert Advisory Fi|o2OOO'14 «44TFQ�wDSEWER DEP/0 jT January18. 2002 Ms. Ana Ge|abert-Sanuhez Planning Director City ofMiami Planning Department P.O. Box33O7O8 lvl�orni.Florida 33233'O7O8 Re: [luvvnLov/n Miami DR] Update Water and Sewer Services Dear Ms, G8|@bert-Sonchez-. y / It isnnyunderstanding that the MiarniDowntown Development Authohh/(DOA)ispreparing k)file the Application for Development Approval (ADA) for Increment || of the Miami Oovvnk»vvn Development of Regional Impact (OOR|). We are aware of the DOA'n application and the development program for Increment U. |nourdiscussionswith the DOA.the CiiyofMiami Planning Department, and the p �ec1consu|tanksatiheCUrUs&KinobaUConnpany.wehavea|ertedtheOOA and the [|ih/ to sewer infras,truoture issues that must be resolved before the Increment |\ development program can baimplemented. VVeare aware that the DDAand the City VfMiami are actively pursuing potential solutions and wewill continue towork with the City and the OOAtoward e nnutuaUysaOsfactory resolution of all infrastructure issues. RahaeBaUesterns. P.E. Chief, Plans Review Section Utilities Development Div'�sicn cc: Adam Lukin.Downtown Deve|opmoniAuthority Lourdes S|azyk.City ofK4iamiPlanning and Zoning Jeff Bercmm,Baroowand RndoU.P,A. Rob Curtis, The Curtis &KimbaUCompany MIAMI-DADE COUNTY, FLORIDA MAMDADE Marh 26, 200 The Curtis Kimball Company Mr. Rub Curtis 7520 Red Road, Suite M South Miami, FL 33 146 ENVIRONMENTAL RESOURCES MANAGEMENT OFFICLI OF 1[1-1E DIRECTOR 33 SW 2°4 AVENUE MIAtv11, FLORIDA 33130-1540 (305) 372-6754 FAX (305) 372-6759 Re: Downtown Miami Development ofRegionallmpact, Increment 11 (DDRJ) Dear Mr, CUlliS DERM staff recently reviewed the Application for Development Approval (ADA) for the DDRL According to ow review, the subject application meets the minimum requirements of Chapter 24 of the Code of Miami -Dade County and the initial development order for 'increment II of the DDRI may be approved. During the course of the review, DERM staff made the following findings Potable Water Supply The subject property is located within the franchised water service area of the N Wa Sewer Department (MDWASD). Water mains exist throughout the area r The source of water for these mains is 'MDWASD's Hialeah -Preston Water Treatment Plant, which has adequate capacity to meet projected demands from this. project. The plant is presently producing .water, which meets Federal, State and County drinking water standards. The estimated potable water demand for the proposed land uses in "Downtown Mjaiui Increment II- is approximately 2,107,000 gallons per day. Irrigation demand is not included in this estimate. Notwithstanding that adequate system capacity is available for this project, DERM will require that water conserving plumbing fixtures be installed in accordance with the requirements of the South Florida Building Code in order to use more efficiently the southeast Florida water resources. It is recommended that the landscaping conform to xeriscape concepts. included in these concepts is use of drought tolerant plants, reduced use of turf grass together with efficient. irrigation system design. Details of xeriscape concepts are set forth in the "Xeriscape Plant Guide froin the South Florida Water Management District. .Dowinown Niiami Development of Regional (DD.R.1) Pe.7. 5 2 • • wei Service: The property is located within .the NtDWASD's franchised sewer service area that is currently serviced by existing public sanitary sewer mains. This collection system includes a network- of gravity Lines and force mains throughout the subject area. Wastewater is directed through several pump stations, depending on the specifk location within the subject area. Pump stations involved ineludei 30-0002 for the northern part of the site, 30-0001 for the central, 30-0008 for the southern part along Brickell Avenue and 30-0156 servicing Brickell Key. All mentioned pump stations are ew-rently working within the mandated criteria set forth in. the ',First Partial Consent Decree, Pump stations 30-0001. and 30-0002 have sufficient capacity for alt estimated development, However, pump station 30-0008 and 30-01 56 could only received 882,960 GPD and 193,380 GPD respectively before they exceed the razindated criteria set forth in .the First 'Partial Consent Decree. -Notwith.stancling the foregoing, in light of the fact that the County's sanitary sewer system has limited sewer collection/transmission and treatment capacity, no new sewer service connections. can be per -mined until adequate capacity becomes available. Consequently, final development orders for this, site may not. be granted unless adequate capacity in the sanitary sewer collectionitran.smission and treatment system is available at the point in time when the project will be contributing sewage to the system or if approval for alternative means of sewage disposal can be obtained. Use of an alternative means of sewage disposal shall be an interim measure, with connection to the public sanitary sewer system required upon availability of adequate collection/transmissionand treatment capacity. Sewage treatment and disposal for the area is provided by MDWASD's regional wastewater treatment and disposal facilities. These facilities have limited available, capacity; consequently, approvalof development orders which will generate additional wastewater flows are being evaluated by DERM on a cas.e-by-case basis. Approvals are only granted if the application for any proposed development order is certified by DERM so as to be in compliance with the provisions an.d requirements of the settlement agreement between Miami -Dade County and the State of Florida IDepartment of. Enviro.nmental. Protection., and also with the provisions of the. Environmental Protection Agency Consent Decree, The above information is being transmitted to you at your request, and is based upon current Code requirements and the available infonnation containedin the ADA. It is recommended that actual design development be closely co-ordinated through this office to insure compliance with. all applicable Code requirements.. Should ou have any questions or be in need of additional infon-n2tion., please advise. Sincerely, Enrique A. Cuellar, Chief Code Coordination and Public Hearings -Department of Environmental Resources Management