The meeting was called to
order at 4:10 by Chairman Ron Schmidt. Commissioner Storms was absent. The minutes of the January 3 meeting were read and
SEWELL ENGINEERING UPDATE:
- Looking at a prospective
remote site that might accommodate lagoon and land application.
- Goal is to have the comprehensive
facility plan completed by the end of February.
- Andy states that new investigation
of treatment system was precipitated by a call to SeptiT echo when discussing costs the prices were substantially higher than
the original quotes.
- Now looking into Aeromod
system. They have 3 installations in the state with the closest being in Metaline. There is also one in Royal
City serving about 2,000 that has nitrogen removal and application onto
a golf course.
- Aeromod is an activated
sludge process with historically very good data. This system has nitrogen levels that are under 10 and BOD & TSS removal
- The Metaline system has
been in operation for 10 years with very good results. They actually discharge into the River.
- Aeromod provides a modular
design that would fit well into phase planning.
- The gross model from the
Hydrogeology report shows the Thies property could sustain 240 seasonal and 80
year round homes.
- The Aeromod system does
not use lagoons, but open basins having common wall construction about 10 feet above ground. They can go into the ground,
but planting buffers would be easier and more cost effective.
- Treatment modules are sized
for 27K, 50K, and 80K gallons per day.
- Would spray in the summer
and still use drip system in winter months for disposal. Andy feels that a bed would be better than drip system with way under
10 ppm. Generally the beds get planted over with native grasses.
- The treatment plant "consumes"
most of the solids and then it goes into a digester. Any remaining sludge is occasionally removed, probably for disposal in
- Andy states that they have
used a very conservative approach and he is confident that the model is conservative.
- Education on water use
and monitoring will be very important. It is a living system and do not want to overload it.
- The data shows that even
with sewer service provided to lake areas, people tend to continue to use properties seasonally. Other lakes have data that
show this is a conservative design for flow rates used. Winter flow rates on lakes average about 40% of summer flows.
- Within the facility plan
Sewell will be presenting alternatives that include cost and effectiveness.
- Sewell suggests that the
District continue to look for another 40 acre site, probably within 3 miles of the lake to serve the other of the lake. Even
if found another site that could support a lagoon/irrigation system would still likely use the same 40% winter flow rate.
- Sewell is not trying to
avoid a lagoon/irrigation system. They type system to be used is dictated by the property that it is located on.
- Eric and Andy will be heading
up to Metaline on Monday to check out their Aeromod system.
- The reason the Geoflow
system is not being considered is because its benefits are minimal in the winter.
- Still planning on using
the E-l pump. It has less opportunity to receive outside water to introduce into the system.
- It looks like those who
have good viable tanks will be able to use them by abandoning chamber # 1 and placing the pump into chamber #2.
- Notice from Public Works
regarding Shoreline Master Program
- Request from Auditor for
annual filing statement
- Copy of Letter from the
Lands to Terrace LID residents
- Response to Lands letter
from Karen Averitt
- Copy of <Gardening in
- Sheila spoke with Dave
Lamb. He met with Terry McNabb but Terry still did not have some of the information needed by Dave.
-Terry suggested that Kathy
Hamel from DOE Aquatic Management Fund has money available. Dave will check into that. They would both like to attend the
February 7 meeting. We will revisit Dave's proposal for 2008 at that time.
- Dave met with someone from
the Midwest who will be working with the Tribe on a weevil project. We might want to keep
an eye on what happens there.
- Terry sent an e-mail regarding
re-treatment of certain areas this summer, but details are yet to come.
- Ron would like to plan
a meeting to begin the LID process for Kohles Beach for May.
- Time to work up letters
to both the District residents and Terrace residents for a project update.
- Sheila spoke with Mike
Lithgow from Planning regarding the progress of the 4 foot tubes. Mike says it is in the District hands to provide them with
some engineering, a monitoring plan that DOE can approve and a plan for safe installation and maintenance. This plan needs
to be submitted to the County for approval.
- Jill Short asks if the
District has heard any news on Cedar Creek. Sheila will check in with Jim Sayre.
The next meeting will be
February 7, at 7:00 The meeting was adjourned at 5:45 pm
Sheila Pearman, Managing