WAC 365-190-080), Jefferson County adopted an Interim Critical
Areas Ordinance (CAO) on May 9, 1994 through Ordinance No.
05-0509-94, amended on June 26, 1995 through Ordinance No.
The Comprehensive Plan,
adopted on August 28, 1998, included critical areas maps and goals
and policies related to the protection of critical areas.
The Interim CAO remained in effect until January 16, 2001, the
effective date of the Unified Development Code (UDC),
adopted through Ordinance No. 11-1218-00 on December 18, 2000.
The provisions to protect critical areas are found in Article
VI-D of the Jefferson County Code (JCC), beginning at
There have been
amendments to some critical areas provisions since initial
adoption of the UDC.
The GMA was amended in 1995 to include the requirement
that local jurisdictions consider "best available science" (BAS)
when establishing protection measures for critical areas.
[See Part Nine of
Chapter 365-190 WAC.] Jefferson County considered BAS during the review and adoption
process for the UDC in the year 2000.
As part of the BAS review in 2000, the following "white paper"
was drafted, with a focus on riparian buffers for protecting the
habitat of anadromous fish (which spawn in freshwaters and live part
of their life cycles in marine waters):
Amendments made to the UDC since initial adoption have
included BAS. Amendments concerned
wetland mitigation ratios,
designating zones vulnerable to seawater intrusion as critical
aquifer recharge areas, and modifying exemptions to standard stream
and wetland buffers for existing and ongoing agriculture.
The County has also been party to a pair of East
Jefferson County-specific studies since adoption of the UDC.
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