Minutes 08/14/2018 PELICAN BAY SERVICES DIVISION
WATER MANAGEMENT COMMITTEE MEETING
AUGUST 14, 2018
The Water Management Committee of the Pelican Bay Services Division met on Tuesday,
August 14 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 Jacob Damouni (absent)
Tom Cravens, Chairman Mike Shepherd
Pelican Bay Services Division Staff Mary McCaughtry, Ops. Analyst
Neil Dorrill, Administrator Lisa Jacob, Associate Project Manager
Marion Bolick, Operations Manager Barbara Shea, Recording Secretary
Also Present
Tom Barber, Agnoli, Barber& Brundage Trent Waterhouse, Pelican Bay Foundation
Rick Swider, PBSD Board
APPROVED AGENDA (AS PRESENTED)
1. Pledge of Allegiance
2. Roll call
3. Agenda approval
4. Approval of 04/16/18 meeting minutes
5. Audience comments
6. *Lake remediation method recommendation
7. Evaluation of blue tilapia effectiveness (M. Bolick)
8. Status of solar powered aerators (M. Bolick)
9. Evaluation of effectiveness of aerators in algae control
10. Discussion of algae control methods
11. *Recommendation regarding evaluation of storm sewer lines
12. Discussion of the value of collection of water chemistry data
13. Alternatives to existing boat ramps
ROLL CALL
Mr. Damouni was absent and a quorum was established
AGENDA APPROVAL
Mr. Shepherd motioned, Mr. Cravens seconded to approve the agenda as
presented. The motion carried unanimously.
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Pelican Bay Services Division Water Management Committee Meeting
August 14,2018
APPROVAL OF 04/16/18 MEETING MINUTES
Mr. Shepherd motioned, Mr. Cravens seconded to approve the 04/16/18
meeting minutes as presented. The motion carried unanimously.
AUDIENCE COMMENTS
None.
LAKE REMEDIATION METHOD RECOMMENDATION
Mr. Cravens commented on the four methods of lake bank remediation,with varied
costs, as presented by Agnoli, Barber&Brundage to the committee last year. At that time,
the committee chose the St. Thomas/St. Martin lake 2-9 as the first lake for lake bank
remediation. Mr. Shepherd commented that the Budget Committee has included$500,000
in the FY19 budget for this purpose, and a similar amount will be accrued in subsequent
years for the repairs of additional lake banks.
Mr. Tom Barber, consultant with AB&B, reported on the completion of a survey
of lake 2-9 and recommended three different types of repairs for separate parts of the lake
bank which included (1) a sheet pile wall, (2) Geoweb, and (3) turf mat, with a total
estimated cost of$340,538.
Mr. Shepherd motioned, Mr. Cravens seconded to recommend to the full
board that we proceed with repair of lake 2-9 using the wall repair
feasibility summary as was presented with an estimated cost of $340,000
and will come up for secondary approval when we know the actual cost.
The motion carried unanimously.
EVALUATION OF BLUE TILAPIA EFFECTIVENESS AND OTHER METHODS
OF ALGAE CONTROL
Mr. Cravens commented on the PBSD's stocking blue tilapia in 20 lakes (in
April/May 2018) to determine their effectiveness in algae control. Mr. Bolick provided
before and after photos of ten of these lakes. The committee noted that these photos show
a significant reduction in algae, although some algae can still be observed on these lakes.
Mr. Cravens suggested that a few additional months are needed to evaluate the
effectiveness of the blue tilapia.
The committee discussed the current methods of PBSD algae control, including
aerators, bacteria, and chemicals. Mr. Shepherd suggested that other methods should be
looked at, including alum and copper sulfate. Mr. Cravens commented on his opposition
to the use of copper sulfate, and suggested that many PB residents would be opposed to it.
Mr. Shepherd and Mr. Cravens suggested that staff contact a vendor to provide a proposal
for a trial use of alum in one PB lake. Mr. Trent Waterhouse suggested that the PBSD urge
PB homeowners' associations to self-fund additional installations of blue tilapia in their
respective lakes.
RECOMMENDATION REGARDING EVALUATION OF STORM SEWER LINES
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Pelican Bay Services Division Water Management Committee Meeting
August 14,2018
Ms. Jacob commented on recent inspections of stormwater pipes by Envirowaste.
She has not received any video footage from their completed work, nor has she received a
proposal for additional work that was requested.
Mr. Shepherd commented that he would like to include an estimate for inspecting
and documenting all Pelican Bay stormwater piping as part of a possible PBSD/County
debt financing package. This information would be used to request the associated repairs
from the County Road& Bridge Dept.
Mr. Dorrill commented that staff will (1) obtain an estimate of the total length of
pipe within the six PB drainage basins from AB&B, and (2) contact the County
Procurement Dept. to determine whether the PBSD can hire another pipe inspecting
contractor, if the two County contractors are non-responsive. 1
The committee requested that staff provide the video of the stormwater pipes,taken
by Envirowaste,to the PBSD Board at the October board meeting.
THE VALUE OF COLLECTION OF WATER CHEMISTRY DATA
The committee discussed whether to continue spending $50,000 annually for the
collection and analysis of water chemistry data from Pelican Bay lakes and decided to bring
this issue to the PBSD Board at the October board meeting.
ALTERNATIVES TO EXISTING BOAT RAMPS
Not discussed
ADJOURNMENT
The meeting was adjourned at 2:13 p.m.
Iir
Tom Cray- s, Chairman
Minutes approved F las presented OR F 1 as amended ON /C° l a /8 i date
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