minimum design & construction standards - Martin County, Florida

for sizes 12” diameter through 16” and 6 tie rods per joint for sizes 18” through
24”.
F) Air relief valves shall be at the design high points. Installation of air release
valves to correct high points caused by improper installation of pipe (not at
design grade) will not be permitted. (See Section XIV approved product list.)
G) All pipe shall be laid to line in a clean dry trench on line and grade with valves
plumb. All pipe shall have a minimum cover of 30 inches and a maximum
cover of 48 inches unless otherwise noted on the plans or required by permit.
H) The trench at the top of the pipe shall be kept to a maximum width of 24 inches
plus the pipe diameter. The trench shall have a flat bottom, cut true and even,
so that the barrel of the pipe shall bear its full length. Pipe bells will be placed
in small pockets specifically excavated to receive the bell. All excavations must
be in compliance with OSHA regulations.
I) No rocks larger than 2 inches in diameter or other items that may damage the
pipe will be permitted over the pipe. In the event pipe is installed in rock
excavation, 6 inches of granular material will be provided for bedding under the
pipe. All pipe joints, thrust blocks, conflicts and service connections shall be
left exposed until visually inspected and approved by a Department
representative.
J) All tapping assemblies installed on existing reclaimed mains shall be pressure
tested and witnessed by a Department’s representative prior to the actual tap
of the main. The pipe coupon shall be carefully preserved and submitted to the
Authority’s representative. All tapping sleeves shall be installed a minimum of
18 inches from pipe joints.
K) All field cuts on pipe shall require careful repair of the particular lining damaged
in strict accordance with the manufacturer’s recommendations.
16. Metering Facility for Bulk Users
Bulk users of reclaimed water which have a contractual obligation with the Department for
the use of reclaimed water, shall construct a metering facility in conformance with this
section and all applicable details. The metering facility shall consist of an above grade
meter, control valve, control panel, telemetry system, remote reservoir level indicating
device, and electrical service with distribution load center and service isolation. The
requirements for each stations instrumentation and controls may vary with its location in the
reuse system. Therefore, system integration of all control devices and instrumentation
shall be provided by the SCADA system designer “DCR Engineering Services, Inc.”
All reclaimed water storage ponds should include a device to provide aeration to the pond
allowing the pond to have self-purification capabilities. In addition, all reuse storage ponds
shall include a staff gauge that is readable by MCU staff from the shoreline and indicates
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