Minutes 08/03/2017 PELICAN BAY SERVICES DIVISION
WATER MANAGEMENT COMMITTEE MEETING
AUGUST 3,2017
The Water Management Committee of the Pelican Bay Services Division met on
Thursday, August 3 at 1:00 p.m. at the SunTrust Bank Building, 801 Laurel Oak Drive,
Suite 302,Naples, Florida 34108. The following members attended.
Water Management Committee Mike Shepherd
Tom Cravens, Chairman Dave Trecker
Pelican Bay Services Division Staff Mary McCaughtry, Operations Analyst
Neil Dorrill, Administrator Lisa Jacob, Associate Project Manager
Marion Bolick, Operations Manager Barbara Shea, Recording Secretary
Also Present
Tom Barber, Agnoli, Barber& Brundage
APPROVED AGENDA (AS PRESENTED)
1. Pledge of Allegiance
2. Roll call
3. Agenda approval
4. Approval of 04/21/17 meeting minutes
5. Audience comments
6. *Phase 2 lake bank erosion study results—presentation by Tom Barber(ABB)
7. Status of 2017 aerator installation
8. Systematic twice weekly monitoring of solar aerators
9. Evaluation of"Lake Evaluation Form"and potential use
10. Lake water quality
11. Other business
12. Adjournment
*indicates possible action items
ROLL CALL
All members were present and a quorum was established
AGENDA APPROVAL
Dr. Trecker motioned, Mr. Shepherd seconded to approve the agenda as
presented. The motion carried unanimously.
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Pelican Bay Services Division Water Management Committee Meeting
August 3, 2017
APPROVAL OF 04/21/17 MEETING MINUTES
7 Mr. Shepherd motioned, Dr. Trecker seconded to approve the 04/21/17
meeting minutes as presented. The motion carried unanimously.
AUDIENCE COMMENTS
None
PHASE 2 LAKE BANK EROSION STUDY RESULTS
Mr. Tom Barber, our ABB consultant, provided a presentation on his Phase 2 lake
bank erosion study results, as provided in the agenda packet. He discussed the criteria
examined, which resulted in a final ranking/score of the lake banks of the 45 lakes for
which the PBSD has responsibility. Mr. Barber provided cost estimates for the ten worst
ranked lakes, using four remediation options including (1) Option A: uses geoweb for
the primary repair and turf mat for the secondary repair, (2) Option B: uses turf mat for
both the primary and secondary repairs, (3) Option C: uses turf mat for the primary
repair and re-grading for the secondary repair, and (4) Option D: provides for re-grading
the primary repair and rototilling the secondary repair. He also commented that all of the
options include littoral plantings in the cost estimates.
After discussion, the committee agreed by consensus on (1) the principle of a trial
lake, (2) the selection of Lake 2-9 (St. Maarten/St. Thomas) as the trial lake, (3) the need
to accrue sufficient funds to complete the trial lake project (the FY18 budget includes
approximately $150,000 for lake bank remediation), and (4) the selection of the method
of remediation of the trial lake requires more discussion.
Mr. Dorrill commented on a more cost effective method of lake bank remediation
whereby the lake bottom is dredged and materials are inserted into tubes which are used
to shore up the lake banks. Mr. Barber commented on reasons not to choose this method.
Mr. Henry Bachman commented that as a taxpayer, he is paying taxes to the
PBSD to maintain the functioning of the water management system, and lake banks do
not affect this system.
Mr. Shepherd motioned, Dr. Trecker seconded to recommend to the full
board that we do the remediation of Lake 2-9 in fiscal year 2019 and begin
accruing sufficient amounts to fund that project. The motion carried
unanimously.
STATUS OF 2017 AERATOR INSTALLATION
Ms. Jacob reported that she is currently working on the bid packet for the
installation of 11 aerators. Her goal is to complete the project before the end of FY17.
MR. DORRILL DEPARTED THE MEETING AT 2:20 PM
SYSTEMATIC TWICE WEEKLY MONITORING OF SOLAR AERATORS
Mr. Cravens commented on the lack of hard data on the breakdowns of our solar
aerator systems, including (1) repair costs, (2) length of down time, and (3) number of
systems which have required repairs. Mr. Shepherd suggested installing an electronic
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Pelican Bay Services Division Water Management Committee Meeting
August 3,2017
clock in each aerator to monitor any lapses in aerator operation. Mr. Bolick agreed to
report the cost of an electronic monitoring clock to the full PBSD Board at the September
board meeting.
EVALUATION OF "LAKE EVALUATION FORM" AND POTENTIAL USE
Mr. Cravens commented on our lack of ability to evaluate the relative
effectiveness of our existing methods to combat algae (aerators, bacteria, chemicals,
littoral plantings, etc.) in our lakes. After discussion, the committee decided to discuss
any practical method of analysis of lake treatment methods at a future date.
LAKE WATER QUALITY
Dr. Trecker expressed concern over the high "out of spec" phosphorous readings
reported in Clam Bay in April and May. His conclusions on 2016-2017 total phosphorus
data in Pelican Bay lakes included, (1)there is no upward or downward trend in Basins 1-
5, (2) Basin 3 shows the worst data, which may be impacting Inner Clam Bay, and (3) the
Vizcaya lake consistently shows the worst data, which may be impacting Upper Clam
Bay.
OTHER BUSINESS
None
ADJOURNMENT
The meeting was adjourned at 2:55 p.m. I
Tom Cravens, Chairman
Minutes approved [ :'as presented OR[ 1 as amended ON4026 d 1 date
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