Quantcast Water Supply and Distribution

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5.16.3
Water Supply and Distribution:
a.  Explanation of existing system, covering particularly the type,
capacity, condition, present water use and unsatisfactory elements of
component parts (for major extensions).
b.  Statement of type of construction proposed, materials for water
mains, type of well, etc.
c.  For distribution systems, statement of design, domestic
consumption required and available fire flow, residual pressure and
elevation differentials.  (Should include designer's basic estimate of
tentative pipe sizes.)  Indicate the water demand for the project and how
it was derived.  Indicate if the existing system to be connected to is
adequate to supply this demand and how this was determined.
d.  Statement of tentative sizes, elevations, capacities, or design
consideration for reservoirs, treatment units, pumping plants, well pumps,
pumps and how they were determined.
e.  At the 60% submittal, provide calculations to verify the quantity
of water required and the sizes, material and class of pipes, reservoirs
and pumps.  Also provide typical pump and system curves.
5.16.4
Sanitary Sewer and Sewage Treatment Systems:
a.  Explanation of existing system covering particularly the type,
capacity, condition, present flow and unsatisfactory elements of component
parts for major extensions.
b.  Interpretation of degree of treatment necessary by effluent
requirement and units necessary for treatment.
c.  Statement of design factors with present and design populations
for various units of sewage treatment plants.
d.  Statement of materials to be used for sewer systems and sewage
treatment plants.
e.  At the 60% submittal, provide calculations to verify the design
flow and sizing of sewer lines and units.
f.  A civil or sanitary engineer shall be responsible for the design
of sewage treatment systems and plants.
5.16.5  Utility Piping Design:  In designing connections to existing
systems, the A-E may find that:
a.
There are no as-built drawings.
b.  Available as-built drawings do not depict the exact location of
the pipe or the critical invert elevations.
c.  Or, if depicted, the data may be incorrect based on his field
observations.
If the above situations exist, proceed on the following basis:
5-12





 


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