All new subdivisions shall be served by adequate sewage disposal
systems.
The projected flow expected to be generated by the proposed
new development shall be determined by the Planning Commission after
receiving recommendations from the responsible governmental agency
or agencies involved.
Except as otherwise provided in this chapter, if the Planning
Commission, upon recommendation of the responsible agency, determines
that the sewage disposal site or system is inadequate to accommodate
the sewage disposal needs of the new development when considered together
with existing development and development which is reasonably probable
of fruition, the new development shall not be approved.