Minutes 12/07/2017 PELICAN BAY SERVICES DIVISION
CLAM BAY COMMITTEE MEETING
DECEMBER 7,2017
The Clam Bay Committee of the Pelican Bay Services Division met on Thursday, December 7 at
1:30 p.m. at the SunTrust Bank Building, 801 Laurel Oak Drive, Suite 302, Naples, Florida
34108. In attendance were:
Clam Bay Committee Bohdan Hirniak
Susan O'Brien, Chairman Gary Ventress
Pelican Bay Services Division Staff Mary McCaughtry, Operations Analyst
Neil Dorrill, Administrator Lisa Jacob, Associate Project Manager (absent)
Marion Bolick, Operations Manager Barbara Shea, Recording Secretary
Also Present Mary Johnson, Pelican Bay Foundation
Jennifer Bobka, Earth Tech Andrew McAuley, Earth Tech
Mohamed Dabees, Humiston& Moore Jeremy Sterk, Earth Tech
Tim Hall, Turrell, Hall & Associates Dave Trecker, PBSD Board
APPROVED AGENDA (AS PRESENTED)
1. Roll call
2. Agenda approval
3. Approval of 10/03/17 meeting minutes
4. Audience comments
5. Clam Bay
a. Monitoring Irma recovery
b. Removing debris from hand-dug channels and waterways
c. Other debris removal
d. Die-off area assessment
e. Other
6. Clam Pass
a. Update on current conditions
b. November tidal ratio report
7. Water Quality
a. Copper results
b. Third quarter report on TP and TN
c. WIN data entry
d. Water sample collection
e. Discharge from Mystique construction project
8. Annual reports—due December 15, 2017
a. Clam Bay monitoring
b. Water Quality—due 30 days after October WQ results reported
c. Bathymetric and tidal monitoring
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Pelican Bay Services Division Clam Bay Committee Meeting
December 7,2017
9. Next meeting: January 4
10. Adjournment
ROLL CALL
All members were present and a quorum was established
AGENDA APPROVAL
Mr. Hirniak motioned, Mr. Ventress seconded to approve the agenda as presented.
The motion carried unanimously.
APPROVAL OF 10/03/17 MEETING MINUTES
Mr. Ventress motioned, Mr. Hirniak seconded to approve the 10/03/17 meeting
minutes as presented. The motion carried unanimously.
AUDIENCE COMMENTS
None
CLAM BAY
MONITORING IRMA RECOVERY
The committee reviewed the new infrared Clam Bay photo taken post-Irma (November
2017). Mr. Tim Hall, consultant with Turrell, Hall & Associates, reported observing post-Irma
"budding out" on hurricane-damaged trees. The committee reviewed photos of Irma-damaged
areas in Clam Bay, provided by Mr. Jeremy Sterk, consultant with Earth Tech, which were taken
soon after the storm occurred. Mr. Sterk suggested and the committee agreed that similar photos
of these areas would be taken in six months for comparison.
Mr. Sterk commented that PB sub-associations cannot, in general, remove debris from
mangrove and upland conservation areas (for cosmetic reasons) without a permit. The
SWFWMD would allow limited removal of"dead broken pieces" for safety reasons.
The committee agreed by consensus to add four mangrove plots in the Irma-impacted
area, which would be monitored in March& September with a limited scope.
REMOVING DEBRIS FROM HAND-DUG CHANNELS AND WATERWAYS
Mr. Sterk recommended removing the Irma-related debris from the hand-dug channels
and waterways as soon as possible, and estimated that approximately $100,000 may be required
to complete this work. Mr. Hall recommended cleaning out the main channels first. Mr. Bolick
commented that his staff has completed some debris removal from the waterways.
OTHER DEBRIS REMOVAL
Mr. Dorrill reported that staff is in the process of pricing out debris removal in the
waterways on the east and west sides of the berm.
DIE-OFF AREA ASSESSMENT
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Pelican Bay Services Division Clam Bay Committee Meeting
December 7,2017
Mr. Hall reported that he has observed signs of recovery in the mangrove die-off area.
Mr. Sterk commented on his "health assessments" of trees in the "plot" areas, which are also
showing improvement.
CLAM PASS
UPDATE ON CURRENT CONDITIONS
Dr. Dabees, consultant with Humiston & Moore, reported that the bathymetric survey
was completed at the end of November, and he is currently working on the annual report. He
commented on the recent super moon which caused the "spit" in Clam Pass to curve southward.
NOVEMBER TIDAL RATIO REPORT
Dr. Dabees commented that tidal ratios look decent and show positive trends.
ESCARPMENT
Ms. Mary Johnson questioned the cause of the current escarpment on the north side of
Clam Pass, and whether it could be a result of the sand placed on the beach from the last beach
renourishment project. Dr. Dabees commented that the escarpment is "part of nature" and not a
result of sand placement. He suggested no action be taken. He would not be opposed to a call to
the DEP to ask what they would suggest to correct the escarpment.
WATER QUALITY
COPPER RESULTS
Ms. O'Brien commented that copper levels in Clam Bay, as reported in the nine site
copper table updated through August, are "borderline" at 16%.
THIRD QUARTER REPORT ON TP AND TN
Dr. Trecker provided a document entitled, "Observations and Recommendations"
regarding the water quality trends within the six PB stormwater lakes, which was added to the
record. He highlighted, (1) copper levels in upland lakes are at an all time low, (2) there appears
to be movement of copper out of upland lakes into Clam Bay, (3)phosphorus and nitrogen levels
have been steady in the lakes over a five year period, (4) the Vizcaya lake consistently shows
the highest levels of phosphorus, (5) over half of the top 7 or 8 exceedances are golf course
lakes, and(6) copper and phosphorus appear to be cycling from the sediment.
Ms. O'Brien commented that 2017 data shows more exceedances than in prior years.
Mr. Hall reported that May 2017 shows that 8 out of 9 sites broke exceedance. He noted
that May data also shows exceptional winds which may have caused high sediment cycling.
Likewise, he reported that January and July 2017 showed no exceedances, and these months
were noted as "low wind" months. Mr. Hall will continue to study a possible correlation
between monthly exceedances and high winds.
Ms. Mary Johnson commented on the high level of nutrients in the reclaimed water used
for irrigation throughout Pelican Bay.
Ms. O'Brien commented that the Tomasko annual report is due in February.
WIN DATA ENTRY
Ms. O'Brien reported that the County Lab will be ready in February to input water
quality data into the WIN system. However, it would be necessary for County Lab personnel to
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Pelican Bay Services Division Clam Bay Committee Meeting
December 7,2017
perform the water quality sampling. She suggested that staff obtain pricing for these proposed
tasks.
WATER SAMPLE COLLECTION
Ms. O'Brien reported that no September samples were collected and that October results
should be received soon.
DISCHARGE FROM MYSTIQUE CONSTRUCTION PROJECT
Ms. O'Brien commented on the discharge from the Mystique construction project which
was discussed at the December PBSD board meeting. She suggested that any possible discharge
be monitored, as the PBSD is responsible for water quality in Clam Bay.
OTHER COMMENTS FROM MR. STERK
Mr. Sterk provided photos comparing 2016 and 2017 seagrass in the southern end of
Clam Bay. He has observed an overall seagrass reduction of two acres, most likely attributable
to poor pre-dredge conditions. He expects the seagrass to rebound.
Mr. Sterk commented on Irma-damaged canoe Marker 12, and will contact the County
for repair/replacement as the County is the holder of the permit and the responsible party.
NEXT MEETING:
By consensus, the committee agreed that the next meeting of the committee would be
held on January 4 at 1:30 p.m.
ADJOURNMENT
IThe meeting was adjourned at 2:59 p.m.
Susan O'Brien, Chairman
Minutes approved [ V j as presented OR [ 1 as amended ON [ 01 0 - /7 1 date
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