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Minutes 09/28/2016 PELICAN BAY SERVICES DIVISION CLAM BAY COMMITTEE MEETING SEPTEMBER 28,2016 The Clam Bay Committee of the Pelican Bay Services Division met on Wednesday, September 28 at 1:00 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 Marion Bolick, Operations Manager Barbara Shea, Recording Secretary Also Present Tim Hall, Turrell, Hall & Associates Dave Trecker, PBSD Board Mike Shepherd, PBSD Board Kathy Worley, Conservancy of SW Florida Jeremy Sterk, Earth Tech APPROVED AGENDA (AS PRESENTED) 1. Roll call 2. Agenda approval 3. Approval of 08/31/16 meeting minutes 4. Audience comments 5. Mangrove die-off a. THA September report b. H&M tidal ratio data for September c. Hand-dug channels d. Intervention strategies e. Possible impact of dune swale work f. 2016 infrared aerial photo 6. Clam Bay monitoring, work, and reports a. Tree trimming and exotic removal in FY16 b. Timeline for 2016 annual report i. Part 1 —on Objectives 1, 4, and 5 of Man. Plan ii. Part 2—on Objective 2 of Man. Plan iii. Part 3 —on Objective 3 of Man. Plan c. Aerial photos d. Maintenance of tidal gauges e. Revised monitoring of mangrove plots for 2016 f. Sea grass exhibit 7. Water quality a. Copper data for July 1 Pelican Bay Services Division Clam Bay Committee Meeting September 28,2016 b. Tomasko quarterly report on total phosphorus and total nitrogen 8. Osprey nesting platform 9. Next meeting: November 9 or 10 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 08/31/16 MEETING MINUTES Mr. Ventress motioned, Mr. Hirniak seconded to approve the 08/31/16 meeting minutes as amended. The motion carried unanimously. AUDIENCE COMMENTS None MANGROVE DIE-OFF THA SEPTEMBER REPORTS Mr. Hall estimated the mangrove die-off area has expanded to 11.46 acres of concern with the addition of 4/10 acre in front of the Strand, although some seedling recruitment can be observed in this area. Mr. Hall is not recommending new hand-dug channels at this time, and will continue to monitor the die-off areas. Mr. Sterk commented that his observations show that the mangrove mortality appears to be almost 100%white mangroves with evidence of new red mangrove growth. Ms. Worley, Conservancy of SW Florida, reported that she monitors 12 Clam Bay plots annually in March, and will provide her reports to the PBSD. She has observed fungus in stressed mangroves. Ms. O'Brien commented on a possible contributing factor of the mangrove die-off as being water run-off from Bay Colony Drive into Clam Bay. Mr. Sterk suggested an additional possible contributing factor as being the poorly functioning Bay Colony condo drainage structures. Mr. Dorrill commented that he will pass along these concerns to Bay Colony, as these concerns are not the responsibility of the PBSD. Mr. Dorrill reported that staff is currently in the process of updating our dune swale maintenance project. He will work with LuAnn Giovannelli and the Bay Colony Association Board, and will pursue a cost-sharing agreement. Mr. Dorrill will explore the set-back documentation for the retaining wall on Bay Colony Drive. H&M TIDAL RATIO DATA FOR SEPTEMBER Ms. O'Brien commented that the variability of the mean tidal ratios has continued. 2 Pelican Bay Services Division Clam Bay Committee Meeting September 28,2016 HAND-DUG CHANNELS Mr. Hall commented that he is not recommending new hand-dug channels at this time. He is considering a possible recommendation about a hand-dug channel right alongside the retaining wall at Bay Colony Drive. INTERVENTION STRATEGIES By consensus, the committee chose to continue with monthly "mangrove die-off status reports" (by Turrell, Hall & Assoc.) for the next six months, through March 2017. POSSIBLE IMPACT OF DUNE SWALE WORK Ms. O'Brien commented on her concerns of the PBSD dune swale work resulting in additions to the standing water in Clam Bay. 2016 INFRARED AERIAL PHOTO The new July 2016 Clam Bay infrared aerial photo is on display in the PBSD office. Ms. Jacob commented that an aerial photo is taken annually; the next photo will be scheduled for July 2017. CLAM BAY MONITORING, WORK,AND REPORTS TREE TRIMMING AND EXOTIC REMOVAL IN FY16 Ms. Jacob reported that the current contract for Clam Bay exotic removal with Earth Balance expires on Sept. 30. She will request a quote from Earth Tech for targeted exotic removal services in FY2017, based on Mr. Sterk's exhibit of identified exotics in Clam Bay. TIMELINE FOR 2016 ANNUAL REPORT By consensus, the committee agreed on Dec. 15 as a target date for consultants to submit their components of the 2016 Clam Bay annual report. By consensus, the committee suggested obtaining a bathymetric survey in November and May of FY2017. Mr. Dorrill commented that he will bring this issue to the PBSD Board on Oct. 5 for approval; only one bathymetric survey is included in the FY2017 PBSD budget. AERIAL PHOTOS Ms. O'Brien expressed her preference in utilizing one plane to take all of the Clam Bay related aerial photos. MAINTENANCE OF TIDAL GAUGES Mr. Sterk reported that on average he receives notification of performance issues of a tidal gauge twice per month. He noted that although a tidal gauge may not be transmitting, the gauge's data is never lost. REVISED MONITORING OF MANGROVE PLOTS FOR 2016 Mr. Sterk reported that he is in the process of changing the Clam Bay mangrove plots by adding additional plots in the die-off area, and abandoning some of the older Lewis plots. 3 Pelican Bay Services Division Clam Bay Committee Meeting September 28,2016 SEA GRASS EXHIBIT Mr. Sterk reported that the sea grass in Clam Bay has increased by approximately 1/2 acre. WATER QUALITY COPPER DATA FOR JULY Ms. O'Brien commented on the copper data provided by the County Lab for July, which showed copper exceeding FDEP acceptable limits at three sites. She reported that the County Lab has provided two sets of distinct results for each of the past two months. The committee expressed concerns over the quality of the County Lab work, and may consider using Benchmark Lab in the future to obtain more consistent results for copper. Dr. Trecker suggested the possibility of copper from the sediment in Clam Bay going back into solution during the high rainy season, causing higher readings. TOMASKO QUARTERLY REPORT ON TOTAL PHOSPHORUS AND TOTAL NITROGEN Ms. O'Brien commented that the 2nd Quarter Tomasko report shows five "exceeds" for total phosphorus; the backup detail report show four "exceeds." Mr. Hall will contact Dr. Tomasko for clarification. The report shows one "exceed" for total nitrogen. Mr. Hall commented on a new rookery containing approximately 80 nests, on a Clam Bay island, which is a new source of phosphorous and nitrogen. OSPREY NESTING PLATFORM Ms. O'Brien thanked staff and Mr. Sterk for their work on the completion of the osprey nesting platform, recently installed just south of the Marker 36 Restaurant. NEXT CLAM BAY COMMITTEE MEETING By consensus, the committee agreed that the next meeting of the committee would be held on November 9 at 1:00 p.m. ADJOURNMENT The meeting was adjourned at 2:37 p.m. c----)1/44 Cnn Susan O'Brien, Chairman Minutes approved [ ] as presented OR [ /1 as amended ON [ - ] date 4