minimum design & construction standards - Martin County, Florida

PVC reclaimed water mains 14 inch to 20 inch diameter (14" - 20") shall be DR-18
manufactured to ductile iron pipe outside dimensions and in compliance with AWWA C905.
The pipe shall have an internal bell end and gasket seal with the joint in compliance with
the requirements of ASTM D3139. The pipe color shall be Purple Pantone 522.
HDPE reclaimed water main 4 inch to 16 inch in diameter (4” – 16”) shall be DR-11
manufactured to ductile iron pipe outside dimensions and in compliance with AWWA C906,
latest revision and ASTM F714. The pipe will be extruded from resin meeting specifications
of ASTM D-3350 with a cell classification of type III, class C, category 5, grade P34
polyethylene compound. The pipe color shall be Purple Pantone 522 or co-extruded Purple
Pantone 522 color stripes.
Ductile iron pipe shall be a minimum of Pressure Class 350. The Department reserves the
right to require a different thickness class for unusual or non-standard laying conditions.
The pipe shall be color coded with four (4)- 2"wide stripes along the length of the pipe at all
four quadrants painted Purple Pantone 522. Pipe shall be cement lined as per
ANSI/AWWA C104/A21.4.
Ductile iron pipe shall conform to latest standards of ANSI/AWWA C150/A21.50 for the
thickness design of ductile iron pipe and ANSI/AWWA C151/A21.51 for ductile iron pipe
centrifugally cast in metal molds or sand-lined molds.
Ductile iron pipe shall be cement lined per ANSI/AWWA C104/A21.4, flanged Pressure
Class 53 with minimum wall thickness of 0.32 for 4-inch pipe and incremental increases of
0.02” thickness for each pipe diameter increase up to 14-inches. Ductile iron pipe greater
than 14-inches shall be submitted to the Department.
All above ground DIP shall be coated with Pantone Purple 522 paint as follows:
Sandblast and remove all paint and any loose material in accordance with SSPC SP-10.
Sandblasting shall be performed using non-silca media. Do not paint or coat any
nameplates, brass or stainless steel surfaces. Contractor shall use the following paint system
or approved equal.
TNEMEC
1) Primer: TNEME-ALUMINUM MASTIC #135
(3.0 to 5.0 mils DFT)
2) Intermediate Series 66 Epoxoline
Coat: Hi-Build Epoxy
(4.0 to 6.0 mils DFT)
3) Finish Series 73 Endura-Shield III
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