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Agenda 09/28/2016 PELICAN BAY SERVICES DIVISION Municipal Service Taxing and Benefit Unit NOTICE OF PUBLIC MEETING SEPTEMBER 28, 2016 THE CLAM BAY COMMITTEE OF THE PELICAN BAY SERVICES DIVISION WILL MEET AT 1 :00 PM ON WEDNESDAY, SEPTEMBER 28 AT THE PELICAN BAY SERVICES DIVISION, 3RD FLOOR OF THE SUNTRUST BUILDING, SUITE 302, LOCATED AT 801 LAUREL OAK DRIVE, NAPLES, FLORIDA 34108. AGENDA 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 b. Tomasko quarterly report on total phosphorus and total nitrogen 8. Osprey nesting platform 9. Next meeting: November 9 or 10 10. Adjournment ANY PERSON WISHING TO SPEAK ON AN AGENDA ITEM WILL RECEIVE UP TO THREE (3) MINUTES PER ITEM TO ADDRESS THE BOARD. THE BOARD WILL SOLICIT PUBLIC COMMENTS ON SUBJECTS NOT ON THIS AGENDA AND ANY PERSON WISHING TO SPEAK WILL RECEIVE UP TO THREE (3) MINUTES. THE BOARD ENCOURAGES YOU TO SUBMIT YOUR COMMENTS IN WRITING IN ADVANCE OF THE MEETING. ANY PERSON WHO DECIDES TO APPEAL A DECISION OF THIS BOARD WILL NEED A RECORD OF THE PROCEEDING PERTAINING THERETO, AND THEREFORE MAY NEED TO ENSURE THAT A VERBATIM RECORD IS MADE, WHICH INCLUDES THE TESTIMONY AND EVIDENCE UPON WHICH THE APPEAL IS TO BE BASED. IF YOU ARE A PERSON WITH A DISABILITY WHO NEEDS AN ACCOMMODATION IN ORDER TO PARTICIPATE IN THIS MEETING YOU ARE ENTITLED TO THE PROVISION OF CERTAIN ASSISTANCE. PLEASE CONTACT THE PELICAN BAY SERVICES DIVISION AT (239) 597-1749. VISIT US AT HTTP://PELICANBAYSERVICESDIVISION.NET. 09/22/2016 9:43 AM PELICAN BAY SERVICES DIVISION CLAM BAY COMMITTEE MEETING AUGUST 31,2016 The Clam Bay Committee of the Pelican Bay Services Division met on Wednesday, August 31 at 12:30 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 (absent) 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 Dave Cook, Pelican Bay Foundation Brandon Reed, County Legislative Affairs Mohamed Dabees, Humiston&Moore Mike Shepherd, PBSD Board Tim Hall, Turrell, Hall & Associates Jeremy Sterk, Earth Tech Robert Naegele, PBPOA Dave Trecker, PBSD Board APPROVED AGENDA (AS PRESENTED) 1. Roll call 2. Agenda approval 3. Approval of 06/30/16 meeting minutes 4. Audience comments 5. Mangrove die-off a. THA July and August reports b. H&M tidal ratio data for July and August c. Water level data for 2015 and 2016 d. Shoal and meandering channels restricting flow e. Extent of tidal exchange f. Hand-dug channels g. Intervention strategies 6. Clam Bay monitoring a. Gopher tortoise survey b. Budget and expenses c. H&M approved and draft proposals d. Aerial photos e. Maintenance of tidal gauges f. Monitoring of mangroves in 2017 7. Water quality a. Copper data for May and June 1 Pelican Bay Services Division Clam Bay Committee Meeting August 31,2016 b. Tomasko quarterly report on total phosphorus and total nitrogen c. Monthly copper table update 8. Canoe trail guide 9. Osprey nesting platform 10. Infrared aerial photo 11. Clam Bay—related reports, proposals and updates 12. Next meeting: September 26, 27, or 28 13. Adjournment ROLL CALL Gary Ventress was absent and a quorum was established AGENDA APPROVAL Mr. Hirniak motioned, Ms. O'Brien seconded to approve the agenda as presented. The motion carried unanimously. Mr. APPROVAL OF 06/30/16 MEETING MINUTES Ms. O'Brien motioned,Mr. Hirniak seconded to approve the 06/30/16 meeting minutes as amended. The motion carried unanimously. AUDIENCE COMMENTS None MANGROVE DIE-OFF THA JULY AND AUGUST REPORTS Mr. Hall estimated the mangrove die-off area to be approximately 11 acres, and it does not appear to be increasing. He reported observing re-growth, noting that the black and red mangroves are coming back better than the white mangroves. He will continue to monitor one specific area showing no re-growth, and may consider the need for new hand dug channels in this area, requiring an FDEP permit. He reported that the mangroves along the Strand wall are showing improvement and that"standing water"throughout the area is no longer a concern. Ms. O'Brien requested that Mr. Hall include an estimate of re-growth observed within the 11 acres of mangrove die-off in his September report. H&M TIDAL RATIO DATA FOR JULY AND AUGUST Dr. Dabees reported that the mean tide ratios have improved post-dredging at the markers closest to Clam Pass (markers 4 & 14); the markers in Inner&Upper Clam Bay (markers 26 & 32)have shown little improvement. WATER LEVEL DATA FOR 2015 AND 2016 Mr. Hall reported that water level loggers in Clam Bay show that water is draining through the system, as a result of the maintenance dredging of Clam Pass. 2 Pelican Bay Services Division Clam Bay Committee Meeting August 31,2016 SHOAL AND MEANDERING CHANNELS RESTRICTING FLOW Mr. Hall reported that he no longer observes shoal and meandering channels restricting water flow in Clam Bay, as noted in the past. EXTENT OF TIDAL EXHANGE Mr. Sterk reviewed pre-dredge photos illustrating the extent of how far north the tides flow. Dr. Dabees commented that he does not recommend obtaining similar comparison photos in the future, since tides can be affected by many different factors and therefore, no conclusions can be drawn from these photos. HAND-DUG CHANNELS AND INTERVENTION STRATEGIES Mr. Hall commented that the mangrove die-off area will continue to be monitored. In the future, he may consider new hand-dug channels in areas not recovering. CLAM BAY MONITORING GOPHER TORTOISE SURVEY The committee reviewed the gopher tortoise survey provided by Earth Tech. Mr. Sterk reported on the existence of approximately 70 healthy tortoises and that GPS coordinates have been recorded for each nest. BUDGET AND EXPENSES Ms. O'Brien reviewed documents related to Clam Bay monitoring and discussed, (1) current existing contracts, (2)proposed monitoring, (3) PBSD budgeted expenses, and(4) requirements included in the Clam Bay Management Plan. H&M APPROVED AND DRAFT PROPOSALS Ms. O'Brien reviewed the H&M approved and draft proposals for (1) collection and analysis of tidal monitoring data for $11,000 and(2) post-construction monitoring of the 2016 Clam Pass maintenance dredging project for$45,500. Ms. O'Brien discussed possible alternatives: (1) combining reports, (2) reducing the number of reports issued, and (3) requesting H&M prepare only the "basic reports" as issued by them in past years. Mr. Dorrill commented that staff will re-evaluate the contracted tasks of H&M, pose alternatives to type and frequency of Clam Bay reports, and provide a recommendation to the full Board. AERIAL PHOTOS The committee and consultants discussed the advantages, disadvantages, and possible cost savings of using one plane, instead of the two planes currently contracted, to take monthly aerial photos of both the mangroves and Clam Pass. Mr. Dorrill will explore this further. Mr. Dorrill also reported on a new directive by the Risk Dept. of Collier County requiring their approval of any use of drones for contracted work. MAINTENANCE OF TIDAL GAUGES Mr. Sterk reported no performance issues of the tidal gauges in the past three weeks. Ms. O'Brien suggested that in-house staff be trained to reset the modems when needed. 3 Pelican Bay Services Division Clam Bay Committee Meeting August 31,2016 MONITORING OF MANGROVES IN 2017 In order to better monitor the mangroves, Mr. Dorrill and Mr. Hall will explore adding new"plots" in the mangrove die-off area for future continuous comparison analyses. WATER QUALITY COPPER DATA FOR MAY AND JUNE Ms. O'Brien commented on the copper data provided by the County Lab for May and June. Although the May copper results were significantly higher, the June results were lower and similar to those of prior months. TOMASKO QUARTERLY REPORT ON TOTAL PHOSPHORUS AND TOTAL NITROGEN Mr. Hall reported that Dr. Tomasko's second quarterly report was not yet available for the committee to review, and is expected shortly. MONTHLY COPPER TABLE UPDATE Ms. O'Brien suggested that staff be responsible for the task of updating a monthly copper table of nine sampling sites. Mr. Dorrill responded that this issue should be a board decision and that the issue would be added to the September PBSD Board agenda for board discussion. MR. HIRNIAK DEPARTED THE MEETING AT 1:45 PM CANOE TRAIL GUIDE Mr. Sterk provided an updated draft of the "Canoe Trail Guide." Dr. Trecker suggested that this guide be cross-checked with the existing Clam Bay Field Guide. The Pelican Bay Foundation will pay for the printing costs of the new final draft of the guide. OSPREY NESTING PLATFORM Mr. Dorrill recapped the progress of the osprey nesting platform project: (1)the platform has been built at a cost of$2,700, (2)permit and application fees of$800 have been paid to the County, and (3) Mr. Tim Durham, County Manager's Office, has been contacted for assistance in obtaining final County permit approvals. INFRARED AERIAL PHOTO The most recent infrared aerial photo of Clam Bay was reviewed by the committee. Mr. Hall commented that the different shades of red in an infrared photo may show the different levels of mangrove stress. CLAM BAY—RELATED REPORTS,PROPOSALS AND UPDATES Ms. O'Brien commented that the committee would appreciate staff providing Clam Bay related reports,proposals, and updates to the committee members as soon as they are received. NEXT CLAM BAY COMMITTEE MEETING By consensus, the committee agreed that the next meeting of the committee would be held on September 28 at 1:00 p.m. 4 Pelican Bay Services Division Clam Bay Committee Meeting August 31,2016 ADJOURNMENT The meeting was adjourned at 1:57 p.m. I Susan O'Brien, Chairman Minutes approved [ 1 as presented OR 1 1 as amended ON F 1 date 5 HUMISTON & MOORE ENGINEERS 4 Home About H&M Services ProjectsAgenda Item#5b Contact Page Urn Login 1, Consulting Coastal Engineers . C Lam Pass Tide Mon!toring- Click here for Maintenance Dredging Project details ---,....... .........41 c-,4 a!Mc.....',..c ‘1Al.A En' 1 MARKER 14 MARKER 2l-i MARKER 32 (1i,-,01F,7-...; .. 4 ,- Tide Gages Location fra•...-,...--,...- s rs4„, '.- ..'- -F-.--..-- -•''':' -- : ft ;i:l..- iiitil-4.7,w-i=i-- - ... ti.--...-i.. it i . - .: • ' -..--ii. ' --i l- -'• -i - i.,-.4-frilt. 7,4iiirt-t iiiitoitti‘iii-i'`, Monthly Time Series 2016(click on Thumbnails tab:pan* =-=€-: Mar Apr May Jun Jul Aug Sep Oct Nov Dec GaoeiGuIf Mean Tide Ratios -2016 0.9 - PASS 0.8 --, DREDGING 0.7 .. - P. X -- Marker 4 Ir. ' - Marker 14 0_4 ',. I c ..1 _ r z .. , .,,, ET Marker 26 -1 Marker 32 0.1 j _ : .f,,'- ' :-1.-=' , s.-., L . 0 - ..12,' g 'i Id IN Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Mean Low TideTime Lag -2016 300 -, PASS DREDGING .._ .., 250 • :i. - 4ir _. 4) ,..'.. . 200 - - , r.„„,Marker 4 ..... . tO (11 150 - . ,,, ' Marker 14 '...'_: a.i .. pi Marker 26 ' ' 1 ... , i 100 - i,::. h„ L.Marker 32 ..., ,. " 1: j., • .. &- so .- g ,, .,„„ . .'. „Y. . , 1 . „ . °0 - 0 +--------' . ::, '4":.- Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Definitions. 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SCALE PHONE 239 304-0030 FAX (239) 324-0054 nr /nom /1 i n n,rr��T Agenda Item#5e-1 + ,.'. •., � . "x ' ":41stik° . a '! """""'rm te * a '-tr M • ., . ` k3r S"ey'te»e . y:» . , .rtei .T : �- a . f , �au' t �:. 2.-z-;---....... ••ti. ,.... • ,_ ai s 7,7 et 44 w.. # Kq RITZ '' `� 13 '.'''/.-..; :, .4.,44 t1,.,..4r,-..-., , \ .,, ,,, ,,,, ). 44, -,,,,, , 1....y. b : ,,:4' ,.,r,, ‘ to-' ;., p � M� x; a,4,.d."y - t• ,4* t f'm tl \ .,.1 . , + .4 , ,,i,,,,,,,,hA ' .. `. 1'* °� .. `•_� N '1, .g t=om " s < s a e f 51. '" a 'f . • _`)p >.� .� �` TH-10 r + r :i- :. , =- ',„,—;,-„2,,.,- lw ,..\p,„\41.4\;• N,:.,,,,,4,‘ ittr,,r,,,..:10,,,. ,,, .,,..,-.... c.,..c"....e, ,„... i 411"...i :........,".,„ - .oir , r baa ° ! ' 4.94411 il 44 : ' i UP - 0/ .PER , . , . ..,. ,.., .,. CLAM 4 -.----_ ,,,,, .,, , ,, , r BAY !,rte . it... ... ,, . , _ ... _t MEXICO . ` I„" Olt }: a ii' ' Art r t . • ` S aka' ; 'ETE 7 3 � ,,,,—.....,....,„ \. , 30,—,,„ .r. 1,;.: -:_•-: 11.1.421k,,,,,,,4 1 ,,,,,, a ,,, .., . • 1W: d 11139 , I, , . - I ,v 7: , w WM BASIN BOUNDARIES ;w GENERALIZED WM FLOW DIRECTIONS „,.1::,i el\i,f,,/,4„c,1..,,. k„:. HAND DUG CHANNELS (GPS) / fin„ 4 DUNE S WA LE 0 600 1 '. k39 MANGROVE DIE OFF AREAS (2016) - ti MANGROVE MONITORING PLOTS (2016) I. , t•� N PELICAN BAY EARTH TECH ENVIRONMENTAL, LLC A WM FLOW INTO CLAM BAY 1455 RAIL HEAD BLVD, SUITE 8 NAPLES, FLORIDA 34110 SHEET NO once PROJECTNO. I scn�E Collier County. Florida P��NF r�sai sna-onsn Fax r�ssi 324-0054 A.enda Item#6f • � :"„'.4, � j ,�gz.,�� ti -iii‘ ' ,. : --,.. iti4.-.r.,, ,,,. ,,..:,,,, ..,„ ,,..., . ,-7'' .‘0,,i,f. , ` tit 4 � k. 'Clam Pass .arY - . ' ;''': l'''' '-V154 4i.'' 'sli - ,,,,k,a,..1.g . ,. t W rM, K. 7 li o 1 ii : , " ' - ..1'.' if . ,_ ...4 3 Gulf 1. a. of Mexico . .., 70.4 a ' lilt /- ••• n r 41PV ' 11 oP. Outer Clam E o E Bay r m ti „m #.� n SEAGATE DR. ✓ 0 �� 11,000 .•t LI DI iimm nlitlr 73 Notes0 SHOAL GRASS Halodule beaudettei (5.61 Ac) 1,r 2016 Aerial provided by the Collier County Property Appraiser. • Fieldwork conducted on July 21st&July 26th,2016. TURTLE GRASS -Thalassia testudinum (Instances) h rr ` " ' ' fir PB SD t. 2016 SUBMERGED EARTH TECH ENVIRONMENTAL, LLC RESOURCE SURVEY niesomm 7455 RAIL HEAD BLVD, SuNITE 8 CLAM BAYNRPA NAPLES, FLORIDA 34170 0 oA.E oc,uo Collier County, Florida PHONE (239) 304-0030 FAX (239) 324-0054 07/26/16 N/A AS SHOWN ANALYTICAL RESULTS Agenda Item#7a-Revised Collier County- Page 1 of POLLUTION CONTROL Report#: 072016PBAY LIVE. GilLEN.SANE BLUE, Project: PELICAN BAY COLLIER COUNTY POLLUTION CONTROL LABORATORY 3339 Tamiami Trail East Suite 304 • Naples,Florida 34112 • 239-252-2502 • FAX 239-252-2574 Report To: Marion Bolick Report Date:9/21/2016 Pelican Bay Services Report Time: 1:06:28PM 6200 Watergate Way Naples,Fl 34108 Collected by: PELICAN BAY SERVICES Collection Date: 07/20/2016 Submittal Date: 07/20/2016 @ 14:35 Data Qualifier Code Key: I: The reported value is between the laboratory method detection limit and the laboratory practical quantitation limit U: The compound was analyzed for but not detected Q: Sample held beyond acceptable holding time J: Estimate value;the reported value failed to meet established criteria for either precision or accuracy V: Analyte detected in both the sample and the associated method blank B: Colony count is generated from plates in which the total number of colonies is outside the method indicated ideal range Analyses performed using EPA or Standard Methods and certified to meet NELAC Standards.Data qualifiers assigned according to F.A.C.62-160. Results contained in this report relate only to the samples collected. Respectfully Submitted, Nosbel Perefr Nosbel Perez Laboratory Supervisor Report#072016PBAY FL State Laboratory ID:E45464 EPA Lab Code:FL00919 Page 1 of 5 Report#0720,€B8a11Yem#7a-Revised Page 2 of 5 Faddy.: 72016-CB1 LabZD AF11007.= Collect Dale/fine: 7/20/16 13:05 r`.. ap Ilam ftv e4 Result a fY °C nits MDL :PQ1.4-• 1W Analysis ate/'rime CC-Nitrate-N CC-Nitrate-N 0.005 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 0.709 mg/L 1 08/12/2016 11:08 Copper EPA 200.8(Cu) 0.924 ug/L 0.20 0.70 2 08/19/2016 15:35 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 08/08/2016 14:15 Nitrogen-Total Kjeldahl EPA 351.2 0.719 mg/L 0.051 0.255 1 08/11/2016 10:28 Nitrate-Nitrite(N) EPA 353.2 0.005 I mg/L 0.002 0.010 1 08/08/2016 15:01 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 2 08/17/2016 08:30 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 07/27/2016 09:45 Pheophytin SM18 10200 H 1.10 mg/m3 1.00 1.00 1 07/22/2016 13:15 Chlorophyll a SM18 10200 H 7.5 mg/m3 1.00 1.00 I 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 U mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.024 mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.077 mg/L 0.004 0.02 1 07/28/2016 11:46 TN TN 0.724 mg/L 0.051 0.255 1 08/22/2016 10:40 - - , iri 5 �� . }G e DI i..Y 6 a -� Oi � ='- 4' •�ip�e. „_,.,_,.a. ,.v„ 1.' ... `.w `� € . - b„= 1 'T�4L .. '•, a� t :v CC-Nitrate-N CC-Nitrate-N 0.007 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 1.09 mg/L 1 08/12/2016 11:08 Copper EPA 200.8(Cu) 6.16 ug/L 0.30 1.05 3 09/20/2016 13:00 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 08/08/2016 14:17 Nitrogen-Total Kjeldahl EPA 351.2 1.10 mg/L 0.051 0.255 1 08/11/2016 10:31 Nitrate-Nitrite(N) EPA 353.2 0.011 mg/L 0.002 0.010 1 08/08/2016 15:03 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 3 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 07/27/2016 09:45 Chlorophyll a SM18 10200 H 11.4 mg/m3 1.00 1.00 1 07/22/2016 13:15 Pheophytin SM18 10200 H 2.10 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.004 I mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.072 mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.123 mg/L 0.004 0.02 1 07/28/2016 11:46 TN TN 1.111 mg/L 0.051 0.255 1 08/22/2016 10:40 �y"ma„ �'useM�mwy.t .' , ,^i o_; „ Methodri >.taU�"Ia' b rr�p� �ts�'� s Cnws „F - PoIhPS 1 REAMMONIA Analysis 4.6 1 08/18/2016 14:11 CC-Nitrate-N CC-Nitrate-N 0.002 1 mg/L 0.002 0.010 1 08/22/2016 10:40 FL State Laboratory ID:E45464 EPA Lab Code:FL00919 Page 2 of 5 Report#0724 'em#7a-Revised Page 3 of 5 TKN-Ammonia CC-TKN-NH3 1.049 mg/L 1 08/18/2016 14:12 Copper EPA 200.8(Cu) 4.70 ug/L 0.40 1.40 4 09/20/2016 14:28 Ammonia EPA350.1 0.011 IJ mg/L 0.010 0.050 1 08/15/2016 14:04 Nitrogen-Total Kjeldahl EPA 351.2 1.06 mg/L 0.051 0.255 1 08/11/2016 10:33 Nitrate-Nitrite(N) EPA 353.2 0.004 IJ mg/L 0.002 0.010 1 08/15/2016 14:04 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 4 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 07/27/2016 09:45 Pheophytin SM18 10200 H 1.00 U mg/m3 1.00 1.00 1 07/22/2016 13:15 Chlorophyll a SM18 10200 H 9.4 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM I8 4500-NO2 B 0.002 I mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM 18 4500-P E 0.047 mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.108 mg/L 0.004 0.02 1 07/28/2016 11:46 TN TN 1.064 mg/L 0.051 0.255 1 08/22/2016 10:40 ,., ,� � I�Gi ip q rHii i °*1.t 3 � i ' =7 � ' � H i f ryury�u . Se.,CE_ s a3Xrrii � iriFd"r ,. 6 i lilt nw` �'" wb � . .�. ...,A -s� 2�..,i : :...,GGrH CC-Nitrate-N CC-Nitrate-N 0.012 mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 0.594 mg/L 1 08/18/2016 14:12 Copper EPA 200.8(Cu) 1.69 ug/L 0.70 2.45 7 09/20/2016 14:18 Ammonia EPA 350.1 0.015 I mg/L 0.010 0.050 1 08/15/2016 14:39 Nitrogen-Total Kjeldahl EPA 351.2 0.609 mg/L 0.051 0.255 1 08/11/2016 10:34 Nitrate-Nitrite(N) EPA 353.2 0.012 mg/L 0.002 0.010 1 08/15/2016 14:39 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 7 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/01/2016 11:20 Pheophytin SM18 10200 H 1.40 mg/m3 1.00 1.00 1 07/22/2016 13:15 Chlorophyll a SM18 10200 H 6.3 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 U mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.018 I mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.056 mg/L 0.004 0.02 1 08/02/2016 13:24 TN TN 0.621 mg/L 0.051 0.255 1 08/22/2016 10:40 . _.... y Flll[IID: 72� sr ii _r 7 { N ' i it i G Fhi ii'' ii��l ij41 r - r ii" ; �, ="faP11�p"itl nnc iii,-�Y'�i"y ifii Por # �i { _. . �.l�Ar=.�5=.t.° , L !ei��.� Result Qualifier i ,iSII �.°"..'a.aH.„i.,. CC-Nitrate-N CC-Nitrate-N 0.007 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 0.617 mg/I, 1 08/18/2016 14:12 Copper EPA200.8(Cu) 2.47 ug/L 0.100 0.350 1 08/19/2016 16:03 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 08/15/2016 14:12 Nitrogen-Total Kjeldahl EPA 351.2 0.627 mg/L 0.051 0.255 1 08/11/2016 10:35 Nitrate-Nitrite(N) EPA 353.2 0.007 1 mg/L 0.002 0.010 1 08/15/2016 14:12 FL State Laboratory ID:E45464 EPA Lab Code:FL00919 Page 3 of 5 Report#072146.fi 'em#7a-Revised Page 4 of 5 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 7 08/17/2016 08:30 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 07/27/2016 09:45 Pheophytin SM18 10200 H 1.10 mg/m3 1.00 1.00 1 07/22/2016 13:15 Chlorophyll a SM18 10200 H 5.9 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 U mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.009 I mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.03 mg/L 0.004 0.02 1 07/28/2016 11:46 TN TN 0.634 mg/L 0.051 0.255 1 08/22/2016 10:40 ggi feld ID: 72016-CB6' Lab fl. -,----r--a_„._,,_ ,,, , ..: f :me: 7/20/16 ^-.•" ,a ! Result Qualifier Units MDL PQI. Dl' Analysis Date/Time 1 . ., . CC-Nitrate-N CC-Nitrate-N 0.003 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 0.598 mg/L 1 08/18/2016 14:12 Copper EPA 200.8(Cu) 1.83 ug/L 0.70 2.45 7 09/20/2016 14:21 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 08/15/2016 14:13 Nitrogen-Total Kjeldahl EPA 351.2 0.608 mg/L 0.051 0.255 1 08/11/2016 10:36 Nitrate-Nitrite(N) EPA 353.2 0.003 I mg/L 0.002 0.010 1 08/15/2016 14:13 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 7 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 07/27/2016 09:45 Pheophytin SM18 1020014 1.00 U mg/m3 1.00 1.00 1 07/22/2016 13:15 Chlorophyll a SM18 10200 H 12.7 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 U mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.019 I mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.056 mg/L 0.004 0.02 1 07/28/2016 11:46 TN TN 0.611 mg/L 0.051 0.255 1 08/22/2016 10:40 ° + c Field ID: 72016-037 Lob ID: AE11013 Collett Date/Time: 74016 ' 10: I p:1. 'It , .6°: 1 u4F Analysis Date/Time CC-Nitrate-N CC-Nitrate-N 0.002 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 0.682 mg/L 1 08/18/2016 14:12 Copper EPA 200.8(Cu) 1.98 ug/L 0.70 2.45 7 09/20/2016 14:23 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 08/15/2016 14:15 Nitrogen-Total Kjeldahl EPA 351.2 0.692 mg/L 0.051 0.255 1 08/11/2016 10:38 Nitrate-Nitrite(N) EPA 353.2 0.004 I mg/L 0.002 0.010 1 08/15/2016 14:15 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 7 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/01/2016 11:20 Pheophytin SM18 10200 H 1.00 U mg/m3 1.00 1.00 1 07/22/2016 13:15 FL State Laboratory ID:E45464 EPA Lab Code:FL00919 Page 4 of 5 Report#0720.b6Baa S'em#7a-Revised Page 5 of 5 Chlorophyll a SM18 10200 H 5.7 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 I mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.014 I mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.056 mg/L 0.004 0.02 1 08/02/2016 13:24 TN TN 0.696 mg/L 0.051 0.255 1 08/22/2016 10:40 °cation: C1r =r t� " ��71 t k ,,e ar' t ! 10 ;;. j ki � h i ;nalvt• u • ti WankP i Oh Mr f ILL :a � a ti r Ana ss ate/Time ' . ._ CC-Nitrate-N CC-Nitrate-N 0.003 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 0.652 mg/L 1 08/18/2016 14:12 Copper EPA 200.8(Cu) 1.87 ug/L 0.70 2.45 7 09/20/2016 13:58 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 08/15/2016 14:16 Nitrogen-Total Kjeldahl EPA 351.2 0.662 mg/L 0.051 0.255 1 08/11/2016 10:39 Nitrate-Nitrite(N) EPA 353.2 0.003 I mg/L 0.002 0.010 1 08/15/2016 14:16 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 7 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/01/2016 11:20 Pheophytin SM18 10200 H 1.00 U mg/m3 1.00 1.00 1 07/22/2016 13:15 Chlorophyll a SM18 10200 H 6.7 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 U mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.017 I mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.072 mg/L 0.004 0.02 1 08/02/2016 13:24 TN TN 0.665 mg/L 0.051 0.255 1 08/22/2016 10:40 Location: CBS* Field ID: 72016-C'B9 LabID: AF1I0l 1'-�,,1,,C,71.11 .!4 t tine: 7/20/16 1,( 0 ._ Iii _ ,,,,,1,0;...071,- �a� nalyte Name Method Result Qualifier Units MDL 1'QL I ,A'Analysis Date/Time a t a„ CC-Nitrate-N CC-Nitrate-N 0.004 I mg/L 0.002 0.010 1 08/22/2016 10:40 TKN-Ammonia CC-TKN-NH3 1.005 mg/L 1 08/18/2016 14:12 Copper EPA 200.8(Cu) 8.36 ug/L 0.70 2.45 7 09/20/2016 14:26 Ammonia EPA 350.1 0.035 I mg/L 0.010 0.050 1 08/15/2016 14:18 Nitrogen-Total Kjeldahl EPA 351.2 1.04 mg/L 0.051 0.255 1 08/11/2016 10:40 Nitrate-Nitrite(N) EPA 353.2 0.006 I mg/L 0.002 0.010 1 08/15/2016 14:18 Filtration for Chlorophyll and Pheo SM 10200 H Completed 1 07/21/2016 10:30 Digestion for Metals SM 3030 D Completed 7 09/19/2016 09:10 Digestion for TKN SM 4500 NorgD Done 1 08/10/2016 10:05 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/01/2016 11:20 Chlorophyll a SM18 10200 H 15.3 mg/m3 1.00 1.00 1 07/22/2016 13:15 Pheophytin SM18 10200 H 3.20 mg/m3 1.00 1.00 1 07/22/2016 13:15 Nitrite(N) SM18 4500-NO2 B 0.002 I mg/L 0.002 0.01 1 07/20/2016 15:22 Orthophosphate(P) SM18 4500-P E 0.08 mg/L 0.004 0.02 1 07/21/2016 07:44 Phosphorus-Total SM18 4500-P E(P 0.148 mg/L 0.004 0.02 1 08/02/2016 13:24 TN TN 1.046 mg/L 0.051 0.255 1 08/22/2016 10:40 FL State Laboratory ID:E45464 EPA Lab Code:FL00919 Page 5 of 5 Agenda Item#7b Page 1 of 5 memorandum date September 7, 2016 to Tim Hall, Turrell, Hall and Associates, Inc. from David Tomasko, Ph.D. Emily Keenan, M.S. subject Quarter 2: Clam Bay NNC SSAC evaluation Background The United States Environmental Protection Agency (EPA) and Florida Department of Environmental Protection Agency (FDEP) adopted site specific alternative nutrient criteria (SSAC) for Clam Bay, as listed in Florida Administrative Code (FAC) 62-302.531. The SSAC were derived based upon a nutrient: salinity relationship from the Estero Bay Wetlands, a reference waterbody for water quality, as established by FDEP in prior TMDLs. The SSAC for Clam Bay is considered in the context of salinity due to the variability in nutrient concentrations that can be due to changes in freshwater inflow, rather than changes in nutrient concentrations alone. Therefore, the appropriate management response associated with any impairment determination is based upon the magnitude and duration of any exceedances. Based on prior work that showed that phytoplankton growth in Clam Bay was likely stimulated by both Total Nitrogen (TN) and Total Phosphorous (TP), both TN and TP are used to determine the degree of nutrient enrichment of Clam Bay's waters. As outlined in FAC 62- 302.531, water quality status is determined on an annual basis, preferably within a calendar year. Within a calendar year, each individual TN and TP value collected within the waterbody is compared to the nutrient: conductivity 90th percentile prediction limit (Figure 1), and an annual percent exceedance is calculated to determine the magnitude of exceedances per year. To be consistent with the method currently implemented by FDEP to identify impaired water bodies, if 13 percent or more of the TN or TP values in a calendar year exceed the 90th percentile prediction limit (after being normalized for conductivity) the duration of exceedance would then be determined. Based on the duration of exceedance (one year or greater than one year), the outcome designation is assigned. If fewer than 13 percent of the values exceed the 90th percent prediction limit, then the outcome is "0". If the magnitude (i.e., 13 percent) and duration (i.e., less than 1 year) of the exceedances are deemed small, the outcome is "1". If the magnitude or duration of the exceedances is large, then the outcome is "2". If both the magnitude and duration of the exceedances are large, then the outcome is "3". The Agenda Item#7b Page 2 of 5 management response for Clam Bay would be determined based on the outcomes assigned to both the TN and TP evaluations for the magnitude and duration of exceedance (Figure 2). The water quality status of Clam Bay would be assigned a green, yellow, or red designation annually based on the magnitude and duration of exceedances of the 90th percent prediction limit. The color designation is then used to determine what level(s) of management actions are appropriate. Annual management response actions are based on the response to nutrient concentrations of phytoplankton and dissolved oxygen (DO) as well as impacts on water clarity (Figure 3). If the outcome of the TN and TP evaluation is green, then no management actions are required. However, if the outcomes are yellow or red then further evaluation of the effect of elevated nutrient concentrations on both phytoplankton biomass and DO concentrations need to be reviewed. If there is no relationship between nutrients and chlorophyll-a or DO, then no management actions are required. If there is a signification relationship, then the impact of chlorophyll-a on the water clarity (Secchi disk depth) would be evaluated. If there is no relationship between chlorophyll-a and water clarity, then no management actions are required. If there is a significant relationship between chlorophyll-a concentrations and water clarity, an outcome designation of"yellow" (indicative of small magnitude or duration of exceedances) identifies that management actions should be taken to identify the potential causes and responses for the elevated nutrient levels. It the outcome designation is "red" (indicative of a large magnitude or duration of exceedances), management actions should be taken to implement recommended response tactics to reduce nutrient concentrations. In this manner, the "health" of Clam Bay is to be assessed annually. Figure 1. Clam Bay water quality flow chart. Do? of all TN&forTP valuesfrom:a calendar year No exceefres td tie 9r efe0%predirencectio I D?limit', ; WH Outcome(' Yes } ?13' , Magn"tudeof �'15°f% exceedance Duration of Duration of exceedance exceedance 1 year >1 year 1 year >1 year Outcomel Outcome2 Outcome2 Outcome Agenda Item#7b Page 3 of 5 Figure 2. Management response matrix using outcomes from both TN and TP evaluation. Total Phosphorus Total Nitrogen Outcome 0 Outcome 1 Outcome 2 Outcome 3 Outcome 0 Outcome 1 Outcome 2 Outcome 3 Figure 3. Management response actions in response to various outcomes. Green Yellow or Red Response evaluation r Evaluate phytoplankton/ significant dissolved oxygen (p<o.os) Not significant response to nutrient (p'o.OS) concentrations Evaluate water clarity Not significant response to chlorophyl l-a (p,o.Q5) Signi want(p<9.05) Small difference or short duration Identify potential causes anti implement identify potential Large difference or causes and recomrended response long duration responses Agenda Item#7b Page 4 of 5 Data Analysis The analysis conducted below was used to assess the water quality status of Clam Bay during the months of February 2016 to April 2016. Since the SSAC developed for Clam Bay is to be evaluated on an annual time step, this analysis provides insight into current water quality conditions within the Bay, but it does not substitute for the more comprehensive annual assessment required. Clam Bay surface water quality data were provided by Turrell, Hall and Associates, Inc. for comparison with the FDEP adopted SSAC established for Clam Bay and found within FAC. 62-302-532 -1-j. The NNC SSAC states the following; "No more than 10 percent of the individual Total Phosphorus (TP) or Total Nitrogen (TN) measurements shall exceed the respective TP Upper Limit or TN Upper Limit." The TP and TN upper limits are calculated using equations 1 and 2: Equation 1: TP Upper Limit (mg/L)= e(-1.06256-0.0000328465`conductivlty(Ns)) Equation 2: TN Upper Limit (mg/L)= 2.3601 — 0.0000268325*Conductivity(pS) The dataset was supplemented with in situ water quality data (e.g., temperature, dissolved oxygen, pH, conductivity, and salinity) retrieved from the chain of custody forms for each sampling event. The corresponding TN or TP Upper Limit was calculated for each Clam Bay estuarine water quality station and sampling date in which conductivity was available using Equations 1 and 2. TN and TP concentrations were compared to the derived upper limit thresholds to ascertain if elevated concentrations were identified (Appendix A). Over the period analyzed (February 2016 to April 2016), a single ambient water quality TN measurements exceeded the respective TN Upper Limit. In comparison, 5 of the 27 (19 percent) TP measurements exceeded the respective TP Upper Limit. Based on this time period, the frequency of exceedance, if maintained over the course of a calendar year, would not be determined to be impaired, and the likely outcome would be a value of"1" indicating a potential concern with water quality, with the level of concern based on whether or not exceedances would be maintained or whether such exceedances are a short-term phenomenon.. The TN exceedance occurred at Clam Bay 5 on February 25, 2016. Similar to the previous reviews (Technical Memo dated January 15, 2016 and May 2, 2016), the TP exceedances occurred at Clam Bay 2 on February 25, 2016 and April 27, 2016 and Clam Bay 1 on March 23, 2016 and April 27, 2016; both stations are located in Upper Clam Bay. In addition, the Clam Bay Outfall monitoring station results were compared to the proposed downstream protective values (DPV) for Clam Bay which are based upon "pristine" conditions of Estero Bay (PBS&J 2011). Outfall TN and TP concentrations were compared to the median and 90th percentile DPV values to determine if elevated concentrations were identified (Appendix B). Agenda Item#7b Page 5 of 5 The median and 90th percentile DPVs for TN are 1.31 and 1.8 mg/L, respectively. The median and 90th percentile DPVs for TP are 0.1 and .25 mg/L, respectively. For TN, 57 and 19 percent of the values exceeded the median and 90th percentile DPV values, respectively (Table 1). For TP, 57 and 19 percent of the reported values exceeded the median and 90th percentile DPV values, respectively (Table 1). Table 1. Percentage of TN or TP concentrations from outfall stations which exceeded the median or 90th percentile DPV values. DPV Total Nitrogen Total Phosphorus Median 90th Percentile Median 90th Percentile Below 43% 81% 43% 81% Exceed 57% 19% 57% 19% Findings It should be noted that this data analysis is not based on a full year of water quality data, and thus while it is indicative of potential findings for a calendar year, it is not necessarily predictive of what would be found with a calendar years' worth of data. The FDEP-adopted SSAC for Clam Bay requires data analysis on a calendar year basis (FAC 62-302.531). However, quarterly status reports can be useful as an early warning system if water quality appears to be significantly different from expected ranges. Preliminary evidence (see above) suggests that nitrogen concentrations in Clam Bay are not currently problematic. However, phosphorus concentrations within Upper Clam Bay exceeded the criteria in 19 percent of the samples collect for this period; additionally nutrient concentrations in stormwater runoff could be problematic if current values are maintained over time. Elevated nutrient concentrations in some of the outfall sampling locations suggests that some of the TP concentrations in Upper Clam Bay could be due to activities occurring on the watershed, and outfall sampling should continue. Additionally, the finding that nutrient concentrations in runoff are elevated compared to protective criteria, while the open waters of the bay itself appear to be unimpaired suggests that the maintenance of the flushing influence of Clam Pass is important to the water quality of Clam Bay. If Clam Pass was to close for some reason, the elevated nutrient concentrations from watershed runoff (compared to undeveloped watersheds) would likely result not only in the expression of eutrophication through mechanisms such as phytoplankton and/or macroalgae blooms, but stagnant water conditions would likely result in Clam Bay exceeding its FDEP-adopted water quality standards. TURRELL, HALL & ASSOCIATES, INC. MARINE &ENVIRONMENTAL CONSULTING 3584 Exchange Avenue, Suite B • Naples, Florida 34104-3732 • (239) 643-0166 • Fax (239) 643-6632 MEMORANDUM TO: PBSD Clam Bay Committee c/o Neil Dorrill FROM: Tim Hall DATE: September 27, 2016 RE: September Report on Mangrove Die-off status DIE-OFF STATUS In flying over the die-off areas this month I'm able to see that there is some regeneration occurring but also I am still seeing some additional chlorotic leaves and leaf loss in some areas. This leads me to believe that the area is still responding to the past conditions and may not have settled yet. The August report stated that the dead acreage estimate was 11.05 acres. I have expanded out the area of concern a bit in front of the Strand where I am seeing some of the ongoing leaf loss and yellowing. There is some seedling recruitment going on in this area but not as much as in some of the other areas. The September estimate,with the addition of this area in front of the Strand, is at 11.46 acres of concern. The previously observed seedling establishment, leaf regeneration, and sapling growth within portions of the identified die-off areas is still apparent. However,as mentioned above,we are also seeing indicators of stress that could still be effects from the inundation from the early part of the year. I am still no seeing large areas of prolonged inundation so the hydrological flushing capacity appears to be working as it was intended. WATER QUALITY I did notice that some of the summer water quality results appear to be higher during July and that could be a result of the increased detrital matter from dropped leaved being flushed out into the bay. N We will continue to watch this. Sincerely, Tim Hall Senior Ecologist Area of concern east of the Strand C.) U < < w "'- a N r r W (7 : ce Q 8 . A O W U : i 'Ai 4 Lur . loon - v1 'moon° m a 1s®®s® o 6 W � v a (7 0 • 1 H Q o CL x 2k s + Q Q W — i U Z : ..,„...... ..,: , . 7 W ( W , W . „,, ' 2 .% , I(( : Wp in', ,, .1 . 4 1 ' Cn i ,,...,.: _ _ _ , , __,,,,' .,,_ ty , ‘,.., , „..0:\v,_. t '14:fii*.;.' f. 0 5 g• e,, ,\41 0- - 4(u.a c''' 'y O U a” 1SNdz .,, L� M \ ',.. -. . _ t. C)''\1 :` /';,,j''''''''r * f/ 7 O y MLet R ® `vii1A,' P:19845 Clam Bay\DRAWINGS\SHEET\DIE-OFF_MONTHLYN2016-09-27-DIE-OFF.dwg SEPT OVERLAY 9/28/2016