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The optimal depth in a birdbath is two and a half inches.

Construction Specifications

The following represent the most commonly used technical specifications for water and wastewater construction by the Boston Water and Sewer Commission. Other specifications for specialty construction are available upon request through the Engineering Department. The user should be aware that the Commission updates its standards and specifications on a regular basis.

Section Description File
A-01 Excavation and Backfill pdf icon
A-02 Gravel Refill pdf icon
A-03 Screened Gravel pdf icon
A-06 Lightweight Backfill pdf icon
A-07 Wood Sheathing of Excavations pdf icon
A-10 Controlled Density Fill pdf icon
B-01 Bituminous Concrete Paving pdf icon
C-01 Ductile Iron Pipe And Fittings pdf icon
C-02 Valves And Appurtenances pdf icon
C-03 Post Hydrants pdf icon
C-04 Service Lines pdf icon
C-07 Epoxy Coatings pdf icon
C-08 Temporary By-pass System pdf icon
C-10 Cleaning and Cement Lining pdf icon
D-01 Sewer and Drain Pipe pdf icon
D-02 Manholes and Catch Basins pdf icon
F-01 Sewer Pipe Lining pdf icon
TV-01 Television Inspeciton pdf icon

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