All developments must be constructed and maintained so that
impacts to natural and man-made drainage ways do not unreasonably
burdened upstream or downstream properties with surface water flooding
as a result of the developments. More specifically:
A. No
development may be constructed or maintained so that the development
unreasonably impedes the natural flow of water from higher adjacent
properties across the development, resulting in substantial damage
to the higher adjacent properties; and
B. No
development may be constructed or maintained so that stormwater from
the development is collected and channeled into natural or man-made
drainage ways, such that the volume and/or rate of flow is substantially
greater than the pre-development volume and/or rate.
C. No
development may be constructed such that the flow of water through
natural or existing man-made drainage ways is obstructed. Bridges
and culverts constructed to allow the flow of water through a development
must be designed to pass flow during a 100-year storm event.
The discharge of any material other than stormwater into the
stormwater system is prohibited. The placement of materials in a location
where they are likely to be carried into the stormwater system by
any means is also prohibited.