minimum design & construction standards - Martin County, Florida

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14. Avoid design of excessive slopes for larger flows at right angle turns. 15. Specifically address meter and service line requirements. 16. Provide material information/specifications for all proposed work. 17. Carefully check specifications to establish that County standards are not exceeded, unless intentionally doing so. The approved plans will be enforced. 18. All road crossing and pavement cuttings shall be in accordance with requirements of the particular authority governing the area. 19. Specify details for all connections to existing facilities. 20. A pre-construction meeting between the design engineer, the contractor, the Utility Contractor (subcontractor), a department representative and, when appropriate, representatives of FDOT and/or the Martin County Engineering Department must be held prior to construction. 21. A minimum of four sets of shop drawings for all materials used in construction and four sets of final construction plans must be submitted for review by the Department prior to scheduling the pre-construction meeting. A minimum of six (6) working days must pass after the submission before a pre-construction meeting will be scheduled. 22. Design shall take into consideration the Martin County Code provisions that govern water and sewer and other regulatory requirements that may apply. 23. The design engineer shall provide a hydraulic analysis of the water and wastewater transmission systems including a fire flow analysis. Network modeling of pressure pipe systems shall be provided using WaterCad/WaterGEMS by Haestad Methods, Inc. Version 6.0 for Windows. If a WaterCad file is provided, the presentation file must be included with it for use with WaterGEMS. Higher versions may be accepted upon department approval. Submittals shall include two copies each of the input and output data for each scenario and 24"x 36" plots of each scenario showing a scale layout of the project including annotated lots, road right-of-ways and names, phase lines, multifamily and commercial/industrial use boundaries and proposed equivalent residential connections, color coded and annotated pipe sizes and pressure contours, nodes and node numbers, legend, north arrow, scale, scenario description and date. Scenarios shall include but not be limited to average daily flow, maximum daily flow plus fire flow and peak hour flow. A copy of the WaterCad/WaterGEMS file(s) shall be submitted on CD Rom. 5
1. Design SECTION III - POTABLE WATER SYSTEMS Water main size shall be based on hydraulic analysis of maximum day plus fire flow requirements or peak hour demand, whichever is greater, while maintaining a residual 20 psi pressure throughout the system. Minimum size is 6-inches in looped systems and 8inches on dead ends. The following fire suppression water flow is the minimum for the specified use: Residential Single family homes/duplexes 500 gpm Multi-family 2 story (12 or less units) 750 gpm Multi-family 2 story (greater than 12 units) 1,500 gpm Mercantile/business 3000 sq. ft or less 750 gpm 3000-15,000 sq. ft 1,000 gpm greater than 15,000 sq. ft 1,500 gpm Industrial (less than 7000 sq. ft) 750 gpm (greater than 7000 sq. ft) 1,500 gpm Warehouse/storage Less than 7000 sq. ft 750 gpm Greater than 7000 sq. ft 500 gpm These are the minimum requirements for the specified uses with a minimum residual pressure of 20 psi. Additional water flow may be required to supplement fire sprinkler systems or to support other hazardous uses. The developer is responsible to meet any additional flow requirement beyond that which is within the capacity of the utility provider. [NFPA 1 and NFPA 101] (These are minimum requirements. The local fire ordinance shall govern.) 2. Backflow Prevention/Cross Connection Control There shall be no physical connection between a safe water supply and a questionable water supply, a reclaimed water supply, or a sanitary or storm sewage system which would allow unsafe water to enter the safe water system by direct pressure, vacuum gravity or any other means. All potable water services within sewage facilities shall be provided with an approved backflow prevention device. See Appendix A, Manual of Cross Connection Control and Backflow Prevention. 6
Page 1 and 2: MINIMUM DESIGN & CONSTRUCTION STAND
Page 3 and 4: 10. Manholes 23 11. Inspection and
Page 5 and 6: 4. Water Source 72 5. Preparation o
Page 7 and 8: ) Location of Easements Easements s
Page 9: SECTION II - DESIGN GUIDELINES The
Page 13 and 14: Horizontal separation of 15 feet to
Page 15 and 16: Gate valves shall be ductile iron,
Page 17 and 18: Hydrants shall be placed within 15
Page 19 and 20: 2) Intermediate Series 66 Epoxoline
Page 21 and 22: B) Any pavement cut shall be replac
Page 23 and 24: C) Preconstruction Meeting: Upon ap
Page 25 and 26: SECTION IV - SEWAGE SYSTEMS AND GRA
Page 27 and 28: Sewer mains shall be laid accuratel
Page 29 and 30: Adjustment to proper grade shall be
Page 31 and 32: The sewer main, house laterals and
Page 33 and 34: Joints for ductile iron pipe shall
Page 35 and 36: AWWA C-500, latest revision. Valves
Page 37 and 38: to provide advance notification of
Page 39 and 40: 12. Horizontal Directional Drilling
Page 41 and 42: SECTION VI - SEWAGE PUMPING STATION
Page 43 and 44: TNEMEC 1) Primer: TNEME-ALUMINUM MA
Page 45 and 46: panel's control circuitry, shut dow
Page 47 and 48: eceptacle shall be used as manufact
Page 49 and 50: ) Radio. and the floats will contro
Page 51 and 52: 1. General SECTION VII - RECLAIMED
Page 53 and 54: A minimum 5 foot horizontal separat
Page 55 and 56: Coat: Urethane or equal (2.0 to 3.0
Page 57 and 58: 9. Reclaimed Water Service Lines an
Page 59 and 60: shopping centers, Developer's Engin
Page 61 and 62:
for sizes 12” diameter through 16
Page 63 and 64:
controller/display panel. The Depar
Page 65 and 66:
• Level sensing devices require a
Page 67 and 68:
1. General Section VIII Pressurized
Page 69 and 70:
3. Reuse Water Sensor a) Sensor Sel
Page 71 and 72:
4. Automatic Control Valve The Auto
Page 73 and 74:
SECTIONS IX, X RESERVED FOR FUTURE
Page 75 and 76:
A. Water, Force, and Reclaimed Wate
Page 77 and 78:
1. Scope SECTION XII - SODDING The
Page 79 and 80:
emoved from the work. 8. Watering T
Page 81 and 82:
A. WATER 1. FIRE HYDRANTS SECTION X
Page 83 and 84:
11. CORPORATIONS 1. Ford 1" FB1000G
Page 85 and 86:
2. American Flow Control Series 250
Page 87 and 88:
5. Clow F 5345 6. MECHANICAL JOINT
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minimum design & construction standards - Martin County, Florida

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