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Home My WebLink AboutSite Utility Study• • Site Utility Study PARAMOUNT AT EDGEWATER SQUARE PROPOSED CONDOMINIUM TOWER SITE UTILITY STUDY JULY 2004 i rs41 FL V i TI DC CdRPR cA • Table of Contents Page 1. General 3 2. Storm Drainage System 4 3. Water Distribution System 5 4. Sewer Collection System 6 5. Solid Waste Generation 7 EXHIBITS: • • Location Map 9 Storm Drainage Calculations 11 MD-WASAD Water Atlas 13 MD -Sewer Atlas 14 Proposed Water Use Calculations 15 DERM Pump Station Report 16 Solid Waste Generation Calculations 18 July 2004 EDC CORPORATION • 1. General A. Project Location and Size The proposed project consists of a Residential Condominium Tower to be constructed at an approximately 3.7 acre site located at 2040-2072 North Bayshore Drive, Miami, FL (See Exhibit A). The project is bounded to the north by NE 21sT Street, to the south by NE 20th Terrace, and to the west by Biscayne Boulevard, all being in Section 30, Township 53 South, Range 42 East, Miami - Dade County, Florida. • • The site is partially occupied by single family homes and low-rise commercial buildings, in its present condition. The homes will be razed for the new development. B. Proposed project build out: The proposed project build -out consists of 377 residential condominium units and 45,781 square feet of retail. July 2004 3 EDC CORPORATION • 2. Storm Drainage System • • A. Existing Storm Drainage System: Roadway storm drainage systems presently exist along the streets surrounding the proposed project. These systems are owned and maintained by the City of Miami. The site, in its existing or proposed conditions, does not or will not contribute any significant amount of storm water run-off into the Public Roadway System. No significant improvements to the existing Roadway Drainage System are expected as a result of this project other than some possible inlet modifications associated with the street of sidewalk improvements. B. Proposed On -Site Storm Drainage System: The proposed storm drainage system to serve this project will be designed to fully contain the storm water run-off on -site and to meet the Miami -Dade County Department of Environmental Resources Management (DERM), Department of Environmental Protection, Environmental Resource Permit (ERP) and the Florida Department of Transportation (FDOT) requirements. This will be accomplished by means of deep drainage wells. No offsite run-off will be generated from the site. The total contributing site area and 30% of the building wall area exposed to the rain will be included in the Disposal Well System design calculations. An impervious coefficient of 0.95 will be used for the purpose of this study. Based on local experienced well drilling companies with other projects in the vicinity, an approximate well discharge rate of 750 gpm per foot of head can be expected. Stormwater from roofs, internal driveways, walkways and parking areas will be conveyed by means of a collection system to sediment tanks sized to meet the detention volume requirements prior to discharging into the Well System, Additional Water Quality pre-treatment and Pollution Retardant Baffles at the catch basins will be provided at areas subject to vehicle traffic. C. Required number of Wells: The proposed wells will be designed to retain the total run-off during the 5-year, 1 day storm; and to provide increased drainage capacity during the 25-year, 3-day storm over pre-existing cond itions. Based on the attached calculations, a total of 4 storm drainage wells are required to provide full on -site retention for this project depending on the actual yields obtained during the well drilling operations. For Well Disposal System calculations refer to attached Exhibit "B". July 2004 EDC CORPORATION 3. Water Distribution System A. Existing Water System Facilities: Miami -Dade Water & Sewer Department (MD-WASD) owns and operates the following domestic water facilities in the vicinity of this project: • An existing 6-inch water main on NE 21st Street that runs along the entire front side of the property. An existing 12-inch water main on NE 20th Terrace that runs along the entire front side of the property. • An existing 16-inch watermain on Biscayne Boulevard. B. Required Water System Improvements: It appears that the existing watermain system is adequate and additional offsite system improvements will not be necessary for the construction of this project. The proposed project should connect to the 6-inch watermain on NE 21st Street to obtain domestic water, fire protection, and landscape irrigation service. C. Anticipated water use: The water use requirements for this project are calculated based on the build -out information previously described. An additional flow demand of 98,830 GPD for the residential and retail components is expected from this project. For determination of anticipated flows see Exhibit "C". • July 2004 5 EDC CORPORATION • 4. Sewer Collection System • • A. Existing Sanitary Sewer System Facilities: Miami -Dade Water & Sewer Department (MD-WASD) owns and operates the following sanitary sewer facilities in the vicinity of this project: • An existing 10-inch gravity sewer line along NE 21st Street that runs along the entire front of this property. This line collects all the sanitary flows from the general area and directs them to the 72-inch interceptor gravity sewer line. An existing 72-inch interceptor gravity sewer line along NE 20th Terrace that runs along the back side of this property. This line collects all the sanitary flows from the general area and directs them to MD-WASD Pump Station # 02. B. Required Sanitary Sewer System Improvements: MD-WASD Gravity Sewer System requirements: It appears that the existing sanitary sewer collection system is adequate and additional offsite system improvements will not be necessary for the construction of this project. The proposed project should connect to the existing 10-inch gravity main on NE 21st Street to obtain sanitary sewer service. C. Transmission Capacity Requirements The wastewater generated by this project will be conveyed to MD-WASD Regional Pump Station No. 02. This station has a yearly NAPOT of 4.22 hours per day respectively according to DERM. (See Exhibit "C). The current ET data as of May 2004 reflects 4.22 hours. With an additional flow of 98,830 gallons per day generated by this project, the station will only increase by 0.046 hours to 4.266 hours. The above referenced pump station has sufficient available capacity to support this project. Flows from this pump station are transmitted to the MD-WASD treatment plant at Virginia Key. July 2004 EDC CORPORATION • v. Solid Waste Generation A. Solid waste generated by this project will be collected in standardized onsite containers for refuse and recycle. Either hauling companies and/or the City of Miami Solid Waste Department will provide regular pick-up services. The anticipated daily solid waste generation for this project is 10.67 CY per day (See Appendix "D"). • IIII July 2004 EDC CORPORATION • • Exhibit "A" EXHIBIT "A" LOCATION MAP July 2004 8 EDC CORPORATION • • LOCATION MAP • Location Map July 2004 9 EDC CORPORATION • Exhibit "B" • • EXHIBIT "B" Storm Drainage Calculations July 2004 EDC CORPORATION • Stormwater Well Calculations • STORMWATER WELL CALCULATIONS DATE: July 2004 SITE DATA: SITE AREA ±3.70 Acres PERVIOUS AREA (GREEN SPACE) 0.56 Acres BUILDING FOOT PRINT 2.37 Acres BUILDING HEIGHT 562 Feet BUILDING SIDE WALL AREA 280 Acres CONTRIBUTING AREA (1/3 SIDE AREA) 0.92 Acres TOTAL DRAINAGE AREA 4.62 Acres LOWEST ADJACENT GRADE ±3.75 Feet RUN OFF COEFFICIENT 0.88 WELL DATA: WELL DISCHARGE RATE PER .FT OF HEAD 750 GPM NUMBER OF WELLS 4 TOTAL WELL DISCHARGE RATE PER FT OF HEAD 1,500 GPM/WELL MEAN HIGH TIDE ELEVATION MHWL 1.5 FT, NGVD WELL DIAMETER 24 Inches SPECIFIC GRAVITY LOSS (SG) 1.5 Feet DESIGN STORM: 5-YEAR, 1-HOUR (CITY OF MIAMI) 3.2 IN/HR PEAK RUN-OFF 21 CFS TIME OF CONCENTRATION 20 MIN July 2004 1 1 EDC CORPORATION • • EXHIBIT "C" Miami Dade Water Atlas Miami Dade Sewer Atlas Proposed Water Use Calculations DERM Pump Station Monthly Information Exhibit "G" July 2004 12 EDC CORPORATION • • • Miami -Dade Water Atlas (419 9 f.44„134. 7713 MIAMI-DADE WATER ATLAS July 2004 13 EDC CORPORATION • • • Miami -Dade Sewer Atlas MIAMI-DADE SEWER ATLAS July 2004 14 EDC CORPORATION • • • Proposed Water Use Calculations PROPOSED WATER USE CALCULATIONS DATE: July 2004 TYPE OF BUILDING USE No. Units RATE (Gpd) ADF (Gpd) CONDOMINIUM UNITS 377 250 94,250 RETAIL 3 5/100 SF 2,283 NET INCREASE: 96,539 July 2004 15 EDC CORPORATION • DERM Pump Station Monthly Information • • *2004051114052558*CAMPAJO ent. * DERM NOPT Run May 12, 2004 M Stet Station Station Current Delta Projected R Type Owner Number ET (Hrs) ET (Hrs) ET (Hrs) Proposed Number of gallons (gpd): 42,750 ****************************** Downstream Stations ' **' ******, *************************:t**:ter***************** OK A5RM+ 30 0002 4.22 .02 4.266 AC 30 CD 1002.02 .01 1002.03 AC 30 RS 1002.05 .00 1002.05 IN 30 RS95APR 1001.77 .00 1001.77 IN 30 RS94MARCH 1001.90 .00 1001.91 July 2004 16 EDC CORPORATION • • • Exhibit "D" EXHIBIT "D" Solid Waste Generation Calculations July 2004 EDC CORPORATION • • • Proposed Solid Waste Calculations Project PROPOSED SOLID WASTE CALCULATIONS PROJECT DATE: July 2004 TYPE OF BUILDING USE UNITS RATE (Pounds) SOLID WASTE GENERATED (lb) SOLID WASTE GENERATED (tons) CONDOMINIUM 377 8 3,016 1.50 RETAIL 3 2 6 0.02 NET INCREASE: 1.52 ANTICIPATED SOLI D WASTE VOLUME AT 7 CY PER TON: 10.67 Cubic Yards per Day 1kMainilvfA[Al DIEDC Project-Fi1es113305 - Paramount at EdgewatetWUSPh.MUSP Study 07282004.doc July 2004 18 EDC CORPORATION