[SBB] Coyote Creek waterbird pond management

["Janet Hanson" <[[email protected]]>]

Dear South Bay Birders,
Regardin the waterbird pond, please find below the Water District's response
to my inquiry on management objectives for the pond. They answered my query
quickly, as you will see below, and I found the explanation very
satisfactory, as I believe you will too, thus winnng my ad hoc "great
service" award.
Good birding!
Janet
______________________________
Janet T. Hanson
Executive Director
San Francisco Bay Bird Observatory
P.O. Box 247
Alviso, CA 95002
408-946-6548
www.sfbbo.org

>From the Water District's 1992 management plan, followed by a current
update.

> Water level management criteria are as follows:
>
> 	"Water depths in the pond will be maintained for a maximum
> benefit of wading, dabbling, and resting waterbirds (between 0.5 to
> 1.5 feet depth) during winter and spring (October to April).
> Water levels in summer and fall will depend upon a number of
> management needs such as mosquito control in the drainage
> channels and control of algal blooms or odors in the pond.  Other
> problems associated with stagnation (low levels of dissolved
> oxygen) may require water exchange.  A staff gauge, located in the
> pond just south of the inlet culvert, will provide for water depth
> measurements."
>
> We, the water district, have allowed the pond to dry up this summer in
> order to conduct maintenance on the pond outlet structure which is
> leaking.  The outlet pipe has corroded in the salt water environment and
> is perforated.  This pipe is scheduled to be replaced, in kind, the
> beginning of August (August 7).  The work will probably take several
> days.  We will refill the pond as soon as the new pipe has been
> installed and it is safe to do so.


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