(Amended by Ordinance No. 179690, effective November 18, 2005.) When the
Director determines that special site conditions may prevent compliance with
Section 10.30.020, the Director may require additional erosion, sediment and
pollutant control measures.
A. Special site conditions may include, but are not limited
to, the following:
1. Slopes before development that are greater than 10
percent (1 Vertical:10 Horizontal).
2. Ground disturbance of a natural vegetative buffer
within 50 feet of a wetland and or water body.
3. The development site is located entirely or partially
within an Environmental Overlay Zone or Greenway Overlay Zone.
4. The development site or development phase will have
ground disturbing activity at any one time of 10,000 square feet or more.
Single family dwellings and duplex dwellings are exempt from this size
limitation.
5. The development includes a land division containing
10,000 square feet or more.
6. Project timing is such that ground disturbing activity
will take place between October 1 and April 30.
7. The development involves discharge or offsite disposal
of dewatering or trench spoils.
B. Additional requirements imposed by the Director to
achieve compliance with Section 10.30.020 A. may include, but are not limited
to, the following:
1. Requiring drainage control in compliance with Titles 17
and 24 during all development phases.
2. Requiring that a State of Oregon registered
professional engineer, other professional certified by the State of Oregon
with experience or qualifications in preparing erosion control plans, or a
registered CPESC prepare or implement the erosion and sediment control
plan.
3. Prohibiting ground disturbing activities between
October 1 and April 30.
4. Limiting the amount of denuded soil at any given
time
5. Requiring a bond, letter of credit or other
guarantee.
