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Bellevue, WA – Many small but important steps make up a Department of
Ecology (Ecology) plan to lower stream temperatures and raise oxygen
content of waters in the Bear Creek watershed.
Ecology invites the public to review and comment on the report and
its proposals and to attend a community meeting next month.
The 51-square-mile watershed includes much of Redmond – where Bear
Creek empties into the Sammamish River – and nearby parts of King and
Snohomish counties. Tributaries include Evans Creek and Cottage Lake
Creek. Water from the creeks eventually enters Puget Sound.
Ecology’s monitoring efforts have so far confirmed that water in at
least nine stretches of the watershed’s streams doesn’t have enough
oxygen to meet state clean-water standards for oxygen content. In
addition, 18 areas of the creeks have been found to be too warm. High
water temperatures harm salmon, trout, and other fish and decrease the
oxygen-carrying capacity of the water. Oxygen is critically important
for fish and other aquatic life.
Causes of low oxygen and high temperatures in streams include:
- Lack of vegetation to provide shade along streams.
- Diminished groundwater flows – which provide cool water to
creeks during the summer – partly due to runoff from developed
areas.
- Nutrient pollution – such as from failing on-site septic systems
and lawn fertilizer – which leads to increased oxygen consumption by
bacteria.
Ecology urges citizens to maintain and repair their septic tanks,
conserve water, keep stock and other animals out of streams and get
involved in stream and wetland restoration projects through local
organizations and governments.
The proposed cleanup plan would incorporate new and existing state
and local initiatives to lower stream temperatures and maintain oxygen
levels, including:
- Restoration of streamside vegetation and wetland areas,
including preservation of existing high value habitat along
waterways.
- Programs to help keep more water in the ground for recharging
streams. Education and technical assistance for livestock and
equestrian facility owners for proper manure management.
- Monitoring streams to track progress.
Ecology will host a public meeting to provide information and answer
questions about the Bear-Evans Watershed Temperature and Dissolved
Oxygen TMDL/Water Quality Improvement Report on Mon., Aug. 11, 6:30-8:30
p.m., in the Woodinville Public Library at 1705 Avondale Rd. NE.
The report is available on the Internet at
www.ecy.wa.gov/biblio/0810058.html; at public libraries in Redmond,
Sammamish and Woodinville; and at Ecology’s regional office at 3190
160th Ave. S.E., in Bellevue.
Ecology is accepting public comments through Aug. 22. Send comments
to Sinang Lee, Department of Ecology, 3190 160th Ave. S.E., Bellevue,
Wash., 98008, or by e-mail to
sile461@ecy.wa.gov.
Contact:
Larry Altose, Media Relations, 425-649-7009; pager 206-663-1785
Sinang Lee, Water Quality Specialist, 425-649-7110 |