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Agenda 10/26/2015PELICAN BAY SERVICES DIVISION Municipal Services Taxing & Benefit Unit NOTICE OF PUBLIC MEETING OCTOBER 26, 2015 THE WATER MANAGEMENT COMMITTEE OF THE PELICAN BAY SERVICES DIVISION WILL MEET AT 1 PM ON MONDAY, OCTOBER 26 AT THE COMMUNITY CENTER AT PELICAN BAY, LOCATED AT 8960 HAMMOCK OAK DRIVE, NAPLES, FL 34108. AGENDA 1. Pledge of Allegiance 2. Roll call 3. Agenda approval 4. Approval of 3/31/14, 5/16/14, 7/17/14, 10/16/14, 1/26/15 meeting minutes 5. Audience comments 6. Status of blue tilapia trials 7. Status of Pak -27 peroxide trials 8. * Alternatives to treat algae in Avalon Lake 9. Copper treated wood 10. Plants for ponds and schedule for plantings 11. Steps to obtain water management easements for remaining 19 lakes 12. Ceding responsibility to Foundation or associations 13. Estimated cost of aeration and maintenance cost of the systems and accelerated schedule for installation 14. Comparative costs of physical removal of algae /duckweed vs. chemical treatment a. Information /presentation on mechanical skimmer 15. Sediment testing 16. Use of hazmat suits when spraying ponds (O'Brien) 17. Plans for renewed community presentations 18. Water Quality Workshop Jan. 26, 2016, 1 -4 p.m. — presenters 19. Adjournment *asterisk indicates possible Committee action 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 OR VISIT PELICAN BAYS ERVICESDIVISION.NET. 10/20/2015 3:55:20 PM LANDSCAPE AND WATER MANAGEMENT COMMITTEE PELICAN BAY SERVICES DIVISION MARCH 31, 2014 The Landscape and Water Management Committee of the Pelican Bay Services Division met on Monday, March 31, 2014, at 3:00 p.m. at the Pelican Bay Services Division office at the SunTrust Bank Building, 801 Laurel Oak Drive, Suite 302, Naples, Florida. Landscape & Water Management Committee Dave Trecker, Chairman Joe Chicurel Tom Cravens Staff Neil Dorrill, Administrator Kyle Lukasz, Operations Manager Also Present Susan O'Brien, PBSD Board John Domenie Frank Dickson Scott Streckenbein AGENDA 1. Roll call 2. Agenda approval 3. Audience comments 4. Review lake pollution status 5. Legal standing in Commons project 6. Adjourn ROLL CALL All members were present and a quorum established. AGENDA APPROVAL Mr. Dickson motioned, Mr. Streckenbein seconded to approve the agenda as presented. The motion carried unanimously. AUDIENCE COMMENTS Ms. O'Brien noted she would present Clam Bay copper results at the appropriate time. REVIEW LAKE POLLUTION STATUS Dr. Trecker reviewed the history of copper impairment in Pelican Bay and what has been done to date to try to remediate the problem. Despite testing various alternatives to control algae, problems with high copper levels remain. Landscape and Water Management Committee of the Pelican Bay Services Division March 31, 2014 Meeting Minutes The Committee is working to inform the community and will send letters to individual associations about the water quality problems in Pelican Bay by offering ways to incorporate landscaping best management practices. LEGAL STANDING IN COMMONS PROJECT Mr. Dorrill clarified the areas which the PBSD has authority over water management or drainage facilities in regards to the Foundation's Commons improvements project. Drainage improvements will require a modification to the South Florida Water Management District (SFWMD) permit that PBSD would have an opportunity to review and weigh -in on if these improvements will affect a PBSD property interest or drainage easement and the plans would be reviewed by our engineer and report provided when available. ADJOURNMENT The meeting was adjourned at 5:04 p.m. Tom Cravens, Chairman Minutes approved � ] as presented OR [] as amended ON [ ] date Reviewed by [ ] staff initials [ ] date 2 PELICAN BAY SERVICES DIVISION LANDSCAPE AND WATER MANAGEMENT COMMITTEE MAY 16, 2014 The Landscape and Water Management Committee of the Pelican Bay Services Division met on Friday, May 16, 2014, at 2:00 p.m. at the Pelican Bay Services Division Office, at the SunTrust Bank Building, 801 Laurel Oak Drive, Suite 302, Naples, Florida. Landscape & Water Management Committee Tom Cravens, Chairman Joe Chicurel Tom Cravens Staff Neil Dorrill, Administrator Lisa Resnick, Interim Operations Manager John Domenic Frank Dickson absent Scott Streckenbein Dave Trecker, Chairman Mary McCaughtry, Operations Analyst Also Present Susan O'Brien, PBSD Board APPROVED AGENDA (AS AMENDED) 1. Roll call 2. Agenda approval 3. Audience comments 4. Review of lake pollution status (Dave Trecker) 5. Consideration of CH2M Hill and Turrell Hall proposals 6. Discussion of experimental use of blue tilapia to control algae and duck weed (Tom Cravens) 7. Other Business (add -on) 8. Adjournment ROLL CALL With the exception of Mr. Dickson, all members were present and a quorum established. AGENDA APPROVAL Dr. Streckenbein motioned, Dr. Chicurel seconded to approve the agenda as amended adding item 7. The motion carried unanimously. AUDIENCE COMMENTS None 1 Landscape and Water Management Committee of the Pelican Bay Services Division May 16, 2014 Meeting Minutes REVIEW OF LAKE POLLUTION STATUS Dr. Trecker reviewed the history of copper impairment in Pelican Bay and what has been done to date to try to remediate the problem. Despite testing various alternatives to control algae, problems with high copper levels remain. Letters to inform the individual associations about the water quality problems in Pelican Bay and offering ways to incorporate landscaping best management practices were being prepared. Mr. Cravens motioned, Dr. Trecker seconded to recommend to the full PBSD Board that continued quarterly sampling and testing be done in 30 lakes in Fiscal Year 2014, with sediment testing done on ten lakes bi- annually by Turrell -Hall and Associates, and have CH2M Hill assess the feasibility and estimated cost of the three copper removing procedures, at a cost of $20,668. The motion carried unanimously. DISCUSSION OF EXPERIMENTAL USE OF BLUE TALAPIA TO CONTROL ALGAE AND DUCKWEED Mr. Cravens made a presentation about using blue tilapia to control algae and duckweed. Mr. Dorrill will look into whether any permits are required to use blue tilapia. ADJOURNMENT The meeting was adjourned at 3:00 p.m. Tom Cravens, Chairman Minutes approved " as presented OR " as amended ON [ I date Reviewed by [] staff initials [ I date K LANDSCAPE AND WATER MANAGEMENT COMMITTEE PELICAN BAY SERVICES DIVISION JULY 17, 2014 The Landscape and Water Management Committee of the Pelican Bay Services Division met on Thursday, July 17, 2014, at 2:00 p.m. at the Community Center at Pelican Bay, 8960 Hammock Oak Drive, Naples, Florida. In attendance were: Landscape and Water Management Committee Tom Cravens, Chairman John Domenie Dave Trecker, ex- officio Joe Chicurel Pelican Bay Services Division Staff Neil Dorrill, Administrator Lisa Jacob, Interim Operations Manager Scott Streckenbein Mary McCaughtry, Operations Analyst Also Present Jim Carr, P.E., Agnoli, Barber & Brundage Jim Hoppensteadt, President, Pelican Bay Foundation AGENDA (AS SUBMITTED) 1. Roll call 2. Agenda approval 3. Audience comments 4. Review and discussion with Jim Carr regarding his July 2, 2014 report on the Commons drainage permit and design Summary 5. Other business 6. Adj ournment ROLL CALL All members were present and a quorum was established. AGENDA APPROVAL Dr. Trecker motioned, Dr. Chicurel seconded to approve the agenda as presented. The motion carried unanimously. 1 Landscape and Water Management Committee of the Pelican Bay Services Division July 17, 2014 Meeting Minutes AUDIENCE COMMENTS Mr. Cravens noted that 100 blue tilapia were installed at the Community Center lake yesterday to control algae at a cost of $1,900. ENGINEER'S REVIEW OF COMMONS DRAINAGE IMPROVEMENTS PBSD's engineer, Mr. Jim Carr, reviewed the drainage improvements proposed for the Commons and indicated that the PBSD's interest in this drainage easement must be vacated. Approval to alter this drainage facility would require BCC approval, as opposed to the PBSD Board, as the BCC or County is the entity responsible to own, operate and maintain the drainage facility. Mr. Carr explained that 0.37 acres of sidewalk will be added to the Commons property and no changes will be made to the existing drainage pipe on the south end. A new retention area for drainage at the north end will be constructed. He concluded that the changes were not within PBSD's existing drainage easement, therefore, the PBSD did not have jurisdictional ability to dispute the changes. He added, that the changes were insubstantial. The Committee members agreed that they saw no reason to pursue this issue any further. OTHER BUSINESS None ADJOURNMENT The meeting was adjourned at 2:17 p.m. Tom Cravens, Chairman Minutes approved " as presented OR [ ] as amended ON [ ] date Reviewed by [ ] staff initials [ ] date 2 LANDSCAPE AND WATER MANAGEMENT COMMITTEE PELICAN BAY SERVICES DIVISION OCTOBER 16, 2014 The Landscape and Water Management Committee of the Pelican Bay Services Division met on Thursday, October 16, 2014 at 1:00 p.m. at the Community Center of Pelican Bay, 8960 Hammock Oak Drive, Naples, Florida. Landscape & Water Management Committee Dave Trecker, Chairman Henry Bachman absent Joe Chicurel Tom Cravens Scott Streckenbein absent Staff Neil Dorrill, Administrator Marion Bolick, Operations Manager Mary McCaughtry, Operations Analyst Lisa Jacob, Recording Secretary Also Present Rafael Vazquez - Burney, CH2M Hill APPROVED AGENDA (AS AMENDED) 1. Roll call 2. Agenda approval 3. Audience comments 4. Update and rating of effectiveness of lake pilot treatments, including tilapia treatment a. Discussion on expanding tilapia treatment b. Proposed peroxide pilot treatment, per DBI Services 5. Updated lakes nutrient and copper levels 6. Testing for nutrients in recycled water Outsourcing lake management add -on 8. Adjournment ROLL CALL Three members were present and two were absent, and a quorum was established. AGENDA APPROVAL Dr. Trecker motioned, Dr. Chicurel seconded to approve the agenda as amended. Item 7 was removed and replaced with "Discussion of outsourcing lake management ". The motion carried unanimously. Landscape and Water Management Committee of the Pelican Bay Services Division October 16, 2014 Meeting Minutes AUDIENCE COMMENTS None TREATMENTS Dr. Trecker motioned, Mr. Cravens seconded to recommend to the full PBSD Board to extend the blue tilapia program to two additional lakes (L'Ambiance & Waldorf Astoria lake behind hotel). The motion carried unanimously. Mr. Cravens motioned, Dr. Trecker seconded to recommend to the full PBSD to do a pilot program on two lakes (St. Andrews & Lake 4 on golf course) with the peroxide treatment. The motion carried unanimously. UPDATE ON LAKES' NUTRIENT AND COPPER LEVELS Mr. Rafael Vasquez- Burney, CH2M Hill, believed that tilapia would be effective in controlling algae, but could present problems with carbon loads and oxygen depletion. He also reviewed copper data from the storm water lakes for the last four quarters, which showed a decreasing trend in copper levels. High levels of phosphorus and nitrogen were found and these nutrients contribute to algae growth. Mr. Cravens motioned, Dr. Chicurel seconded to recommend to the full PBSD Board that staff be authorized to explore the possibility of a pilot filter marsh project that would utilize space within the 12 acre site. The motion carried unanimously. OUTSOURCING LAKE MANAGEMENT Mr. Dorrill informed the Committee that the current outsourcing of lake management activities are costly. ADJOURNMENT The meeting was adjourned at 2:50 p.m. Tom Cravens, Chairman Minutes approved [I as presented OR [] as amended ON [ ] date Reviewed by [ ] staff initials [ ] date 2 WATER MANAGEMENT COMMITTEE PELICAN BAY SERVICES DIVISION JANUARY 26, 2015 The Water Management Committee of the Pelican Bay Services Division met on Monday, January 26 at 1:00 p.m. at the Community Center at Pelican Bay, located at 8960 Hammock Oak Drive, Naples, Florida. In attendance were: Water Management Committee Tom Cravens, Chairman Joe Chicurel Pelican Bay Services Division Staff Neil Dorrill, Administrator Marion Bolick, Operations Manager Scott Streckenbein Dave Trecker (ex- officio) Mary McCaughtry, Operations Analyst Lisa Jacob, Recording Secretary Also Present Ken Dawson, Pelican Bay Services Division Board Shaun Hyde, SePRO Anthony Morris, Hoover Pumping Systems Geoff Noble, Pelican Bay resident Susan O'Brien, Pelican Bay Services Division Board Michael Shaner, SePRO APPROVED AGENDA (AS AMENDED) 1. Roll call 2. Agenda approval 3. Audience comments 4. Treating algae in lakes presentation by Michael Shaner, SePRO 5. Re- establish community educational outreach 6. Experimental copper removal presentation by Geoff Noble 7. Preparing an RFP for water management consultant a. Other 8. Adjournment ROLL CALL All Committee members were present and a quorum was established. AGENDA APPROVAL Dr. Trecker motioned, Dr. Chicurel seconded to approve the agenda with the addition of item 7.a. Other. The motion carried unanimously. Water Management Committee of the Pelican Bay Services Division January 26, 2015 Meeting Minutes AUDIENCE COMMENTS Mr. Geoff Noble observed that algae in the Community Center Lake had decreased. TREATING ALGAE IN LAKES PRESENTATION BY MICHAEL SHANER, SePRO Mr. Michael Shaner, SePRO, discussed solutions to the algae problem in the lakes that his company SePRO might provide. Mr. Shaner noted that the lakes in Pelican Bay contain the weed slender spike rush, and recommended the Services Division use Phoslock, a SePRO product that reduces phosphorus levels, which would reduce algae production. RE- ESTABLISH COMMUNITY EDUCATIONAL OUTREACH A copy of the brochure, Water Quality in Pelican Bay, will be updated and distributed to residents, and presentations will be scheduled with community groups. Mr. Anthony Morris, Hoover Pumping Systems, spoke briefly about a product that can reduce nutrients in reclaimed water. EXPERIMENTAL COPPER REMOVAL PRESENTATION BY GEOFF NOBLE Mr. Geoff Noble demonstrated a process being developed to remove copper from solution. PREPARING AN RFP FOR WATER MANAGEMENT CONSULTANT Mr. Bolick indicated that he did not think that a consultant would be the best solution for water management issues at this time. The Committee discussed options, and agreed. OTHER (ADD -ON) Dr. Trecker noted that the October Clam Bay copper levels dropped in Upper Clam Bay. ADJOURNMENT Mr. Streckenbein motioned, Dr. Chicurel seconded to adjourn. The motion carried unanimously and the meeting was adjourned at 2:46 p.m. 2 WATER QUALITY IN PELICAN BAY In the absence of committee meetings and in view of the apparent lack of interest at the board level, I want to share my thoughts about water quality in Pelican Bay — which remains a serious problem. As I believe we all know, until 2012 the community was blissfully unaware there was a problem. Nutrient runoff from fertilizer use poured into the lakes, but the lakes remained clean, rid of algae by periodic copper sulfate treatment. Water flow was good. In Clam Bay, the focus was on mangrove restoration and keeping Clam Pass open, not on water quality. Then, in 2012, the FDEP changed all of that by citing Clam Bay "impaired for copper." In 2013, the PBSD stopped using copper in the 44 lakes for which it had responsibility, and in 2014 spokesmen for associations that maintained the remaining 19 lakes said they also had stopped using copper. As a result, copper levels in Clam Bay dropped dramatically. But algae and duckweed buildup in the lakes soared. And residents complained; property values were at stake. Alternatives to copper were examined based on experience in other communities around the state. Subsurface aeration and littoral plantings were found to help, but not solve the problem. Frequent touchup with costly non - copper chemicals was also needed. We learned that nothing worked as well as copper. So where do we stand and where do we go from here? (1) Fertilizers and Irrigation Water The root cause of algae and duckweed buildup is nutrient runoff from fertilizers and irrigation water. The nutrients (dissolved nitrogen and phosphorus) feed the algae and duckweed. Attempts by the PBSD to convince associations to curtail this runoff by having their landscape maintenance companies follow "best management practices" in fertilizer use apparently failed. Dissolved nitrogen and phosphorus levels remain high throughout the lake system. No real change since 2012. We concurrently learned that recycled county water used for irrigation was itself loaded with nutrients. So even with no fertilizer use, runoff of the irrigation water added to nutrient levels in the lakes. (The county is aware of the problem. The nutrients can be removed, but at unacceptably high cost.) We must renew efforts to urge that fertilizer and irrigation water be used responsibly. Talks with handouts should be given at Presidents' Council, Men's Coffee, The Club Pelican Bay, Pelican Bay Foundation, PBPOA and whatever associations will have us. (I don't think this will do a bit of good, but it's irresponsible not to try.) (2) Alternative Treatments The current PBSD budget covers installation of aerators in the remaining 20 lakes for which we have responsibility in FY 2016 and 2017 and planting of littorals in the 28 unplanted lakes in FY 2016. It also covers some, but not all, of the projected chemical costs for algae and duckweed control. Peroxide treatment is being piloted, as is testing of tilapia in two trial lakes. We should complete aerator installation and littoral plantings in FY 2016. Based on our own experience and input from other communities, this is sound baseline treatment and shouldn't be delayed. We should test copper touchups (not indiscriminate copper use) in a few pilot lakes. Many communities are doing this after learning that other chemicals are simply not as effective as copper. We should evaluate bacterial treatment, as suggested by several of our residents, in two pilot lakes and compare cost - effectiveness of chemical treatment with physical removal of algae /duckweed. (3) Sediment Testing We conducted a one -time sediment test (ten lakes) in 2013, with widely varying results. The intent was to measure sediment buildup and copper levels in the sediment. Sediment takes away the holding capacity of lakes, the capacity being important for both containing stormwater runoff and soaking up pollutants before they reach Clam Bay. Results from the 2013 test showed that silt levels, a partial measure of sediment content, ranged from 3% to 16 %, and copper content of the sediment varied from none to nearly 15,000 mg /kg. Proposals to continue sediment testing were rejected by the PBSD board because of concern over what we might find. "Let's not make trouble for ourselves." Sediment testing is an integral part of water management elsewhere. A Naples City Councilperson told me that, because of sediment monitoring, the City of Naples is facing the need for dredging several of its 30 lakes (at a cost of over $1 million per lake.) Further, the whereabouts of copper and the possibility of its reappearance cannot be known without at least limited sediment testing, both in lakes and Clam Bay. We should get our heads out of the sand (pun intended) and institute regular sediment testing in 10 -15 lakes. We should also consider limited sediment testing in Clam Bay. (4) Expert Consultants We have none. Tim Hall, an expert on marine biology, provides good guidance for Clam Bay. We have, from time to time, collared experts for advice on the lakes, but we have had no one on a regular basis. A proposal to hire a dedicated consultant — several were identified — was rejected by the Water Management Committee last year. Whenever I talk with someone outside of Pelican Bay about water quality, the first thing they ask is who is guiding our program. They are always amazed to hear that we have no outside consultant. If we are serious about water quality and if we continue to manage the program (see 6 below), we should retain an expert on a long -term basis. (5) Maintaining Some /All of the Lakes The PBSD has no control whatsoever over 19 of the 63 lakes in Pelican Bay. Those 19 lakes are maintained by individual associations. We get no input (nor are we entitled to any) on what is put into or taken out of those lakes. Fish could be dumped in indiscriminately. Copper could still be used. (That's the first thing I thought of when I saw the recent copper increases in Clam Bay.) If we continue to manage the program (see 6 below), it's essential that we gain maintenance easements to those 19 lakes. (6) The PBSD role going forward I think we have a number of options. A. Continue on our present course. With no time urgency, test alternative treatments and install plants and aerators. React to resident complaints by spraying with non - copper biocides. Lobby residents and associations managing the 19 private lakes for better behavior. B. Upgrade our management activities. Install plants and aerators in FY 2016. Aggressively test other approaches. Resume sediment testing. Retain a consultant. Take steps to gain maintenance easements to the remaining 19 lakes. Spend the money to do things right. C. Turn the program over to the Foundation. The Foundation has the money, manpower and consultant access to manage the program properly. Going hat -in -hand to the county for additional funding wouldn't be necessary. Moreover, the Foundation has enforcement powers the PBSD doesn't have. The PBSD could meet its ordinance obligations by managing water discharge only or, alternatively, lobbying the county to have water management removed from its ordinance responsibilities altogether. D. Cede responsibility for all 63 lakes to the associations. Without control of all of them, it might be preferable to manage none of them. It would allow PBSD funds to be diverted to more productive use. Further, the associations might pay better attention to fertilizer and irrigation water use if they had to pay for ridding the lakes of the resulting algae and duckweed. And responsibility often leads to financial commitment and action. Good examples are Crescent and Breakwater, which have done excellent jobs with their lakes. There's no reason to expect that other associations might not as well. My preference, of course, is B. 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CLAY BAY NUTRIENT MANAGEMENT aEO�oa.T H TURRELL,HALL @ASSOCIATES,INC. ��,. 0235.6 Marine&Environmental Consulting C 35ad Fxchnnge Ave.Suite R, w� 07-11-13 05 _ NnPlcx,FI.341 W-3]32 �C /_ , Phone:(23Y)693-0166 LLJJ /' Pnx:(2iY)(A3-6632 IP_BASIN 5 ,� _ J e''au:nu>b�ta�en-as.,,./.,�e�.et,,,, 93NOf'IONtltl EIOZlEU6 ONP SNI9VB SMOIj-SEZOWV°\Wewa6eueN tuagnN-i9d 9'SEM"d ° ah ,u x . �. w a r ', £ ,,,E fit.;.4,,,„.i."111- sa{ a ns,k' J4 $s ..-*, °- .94 it -'< ttitt . T ''''''' . . -*1 1.- It.' 1 ii ° a > a ,." -4"-'-` '4,—"''''' ''''''. 4. .4t:' . e. ,.^ -0 rt ' i; IF es r S D Z . �`� !f E D D °i V'„ Vv ' 'C zp ..W piNi, 'w :.A1-1.1*'.' a ' -,^fit ?.^ =" v+ 0) "u m :` �-� , Nam . 'i � ; � � � � ��=i: era"'�l"' x� . �r j k J X.., gtk. A 1 eT aEp � ,.. 2 - a as I , ',„,,,.. ): 1T7 f i m , tiiiiii.t.,,,,,\.... 1,r m 171 '` f _ j J, CO Z y y z r T-a 1 1 /�.,»»..: RMJ ,n, �,- - a" —r—1-7- CLAM BAY NUTRIENT VANAGEVENT TURRELL,HALL&ASSOCIATES,INC. yes, 0235.6 Malice&Environmental Consulting ��++ 3584 Exchange Ave.Suite n, o.h. 07-11-13 O V rvani .P(.3a(w-3�3z g 1 N Phone:(239)64}n166 Pax:(239)643-6632 t�"�� IP_BASIN 6 e,..,.n-n,oac�m.,�u-axe«imea.EOm FIGURE 10 Basin Average Total Nitrogen Time Series for Period of Record Pelican Bay Stormwater Lakes Water Quality Monitoring Program:May 2015 Data Review 6.0 8 7 5.0 6 00 4.0 / k►. 5 - "` 3.0 ' 4 2 Z 2.0 �.� to 2 VLit 1 0.0 �� ., .111111111121. I, I I I I .1 3,ICI I I II 0 y ,�, tititititi �titi3 tiN N ti° tia �°` N N yN ©a' 'b� �9c �4(Seth©QC,`�e`o�`aA �� p ''4(` �� `'e� �y0a �ii4) MI Rainfall -1 2 3 —4 5 6 Figure 11 presents a time series depicting the basin mean TP concentrations for the period of record,from which outliers have been removed for Basins 4,5,and 6.All basins have shown a decreasing trend over time since 2011.Basin 3 continues to have elevated TP concentration compared to other basins,but it also shows a decreasing trend over time.In May 2015,basin 3 had a sharp increase in its measured TP average,which was comparable to its August 2012 to November 2013 values. TP values were lowest during February 2014 and a pattern of increasing TP values is evident in all basins. Overall,TP concentration appear to have a slight pattern related to rainfall where peak rainfall events may be resuspending sediments and increased values are noted after significant rainfall events.The majority of phosphorous present is in its inorganic form which could be potentially associated with sediment or resuspension from aerators.Similar to the elevated TN concentrations,changes in algaecide practices at Pelican Bay have resulted in visible algal blooms which are another potential release mechanism of TP in the stormwater lakes. PBSD_TECHME MAY2015.DOC 12 PELICAN BAY STORMWATER LAKES WATER DUALITY MONITORING PROGRAM.MAY 2015 DATA REVIEW FIGURE 11 Basin Average Total Phosphorus Time Series for Period of Record Pelican Bay Stormwater Lakes Water Quality Monitoring Program:May 2015 Data Review 0.45 8 0.40 7 0.35 6 el 0.30 c 5 = v, 0.25 ' �' + 4 .-c 20. 20 K rc n 3 X0.15 ' , _ a 4 ,, 0.10 . v 2 r F°- 0.05 - A4, 1 itair 0.00 141'' tititititititititititirc)) ti t4 ;N<;) ,N(7 r�°� •,� NO > � ��' �e� �e2 4aa ��0 .sac s{ ��e ��yJ NO � INN Rainfall - - 1 -irk-2 3 -4-4 5 6 Figure 12 presents a time series depicting the basin mean copper concentrations for the period of record.A significant decreasing trend in copper is observed from August 2013 through May 2015,which is a direct result of discontinued use of copper-based algaecides.A recent downward trend from February to May 2015 is a positive sign that copper is being assimilated within the sediments.The outliers for Basin 2 and 4 were removed from the figure to better reflect the majority of the collected data.In May 2015,Basins 3 and 4 decreased by approximately 40 pg/L,approaching measured values in the other basins.Basins 3 and 4 continue to be the only basins to have individual stormwater lakes(Stations 3-1,4-08,and 4-10)with concentrations measuring above 100 tg/L of copper. Copper concentrations appear to decrease during the wet season which may be attributed to increased rainfall driven dilution or flushing within the ponds.Levels increased during dry periods when the pond stages are expected to be lower and evaporative losses result in increased concentrations of copper, however seasonal observations after the discontinued use of copper are not yet clear and a longer period of record is needed to assess the effect of seasonality.Copper levels overall appeared to have reached an equilibrium with sediments accumulated in these ponds and fluctuations in concentrations may be associated with perturbations of the sediment layer.Windy days,fountains,and general maintenance within the pond might create some disturbance within the sediment to observe changes in copper concentrations in the water column. PESO_TECKMEMO_MAY2015.DOC 13 FIGURE 12 Basin Average Total Recoverable Copper Time Series for Period of Record Pelican Bay Storm water takes Water Quality Monitoring Program:May 2015 Data Review 500 8 450 Discontinued 7 400 ; use of CuSO4 in", August 2013 6/ \350 ,,' 300 I \ �/ cu 250 4 '° v 200 \ \ 3 150 , . \i " \r a 0 100 \ 2 �, 1 s 5 0 .„, Ai s , 0 Fd ,e NI> tz9 NJ�c,,e, Leo lea 4`'�a Q�4O pow >ac 4.. >�� 4,eQ„,oA ,(NQ',..aA MINI Rainfall --4-1 -44.-2 3 —4-4 .. 5 ,J 6 Observations and Recommendations Based upon a review of the May 2015 monitoring results,the following observations are made on water quality trends observed within the six Pelican Bay stormwater lake basins. Nutrients have shown a mixed response over the past year.Total phosphorous in the basins has increased this quarter,with basin 3 returning to levels comparable to its higher November 2011 to November 2013 values.For total nitrogen,Basins 2,3 and 4 reversed a previously increasing trend with an overall decrease in TN during May 2015.However,a majority of the measured total nitrogen values are still higher than values recorded prior to August 2013. Total recoverable copper remains significantly lower than historical concentrations.The discontinuation in copper sulfate use for algae control has resulted in significantly decreased concentrations since August 2013.Eleven of the 29 stations measured in May 2015 had higher copper concentrations compared to the preceding quarter.However,there was a general decreasing trend for all the basins except Basin 2,with values comparable to the May 2014 measurements.The trend that copper concentrations appear to decrease with increased rainfall suggests a dilution or flushing effect from the ponds with the increased rainfall.Copper concentrations appear to be reaching an equilibrium with sediment releases and the levels in future quarters are expected to fluctuate seasonally:. Despite these overall improvements,copper concentrations continue to be greater than ranges typical of surface waters.While state water quality criteria are not directly applicable to the stormwater lakes,the FDEP has noted that the copper discharges to Clam Bay may be having an effect on estuarine water quality. Additional water quality monitoring is expected to clarify long-term trends in copper and the contributions to Clam Bay. The implementation of treatment systems in strategic locations within the stormwater lake system continues to warrant consideration.A study of treatment systems and their associated cost-effectiveness could address regulatory concerns over Clam Bay and help address other water quality concerns that lead to aesthetic concerns within the Pelican Bay Community. PesojEcHMEMO_MAY2a%s DOC 14 Motion approved at 9/2/15 PBSD board meeting: Move that PBSD board approve littoral plantings in lakes in which plantings have not already been made (ca. 28 lakes). What is timing for the plantings? Motion approved at 9/2/15 PBSD board meeting: Move that PBSD board direct staff to determine steps involved in seeking maintenance easements to the remaining 19 lakes now maintained by private associations and the attendant cost for maintaining those 19 lakes. What is status? Timing? From: ResnickLisa To: Bohdan Paul Hirniak lbohirniak(@aol.coml; Dave Trecker(djtrecker(a vahoo.com);Joe Chicurel jichicureh)amaiLcom); Ken Dawson(naoleskendawsonaol.com);Scott William Streckenbein;Pisan 0"Brien (naolessusan(@rcn.com);Tom Cravens(nfn16799(@naoles.net) Cc: SheaBarbara; McCauohtrvMarv; BolickMarion; Neil Dorrill;deef@dmafl.com; ResnickLisa Subject: FW:Info on Wood Date: Tuesday,October 20,2015 12:04:28 PM Attachments: CA-C(Cooper Azole Tvoe C)nreservatives.ndf Dear PBSD Board, On behalf of Mr. Cravens, this is intended as a one-way communication for your information only. To avoid Sunshine issues, please do not reply/comment. Please see below and attached. The attachment can also be downloaded at https://files.acrobat.com/a/preview/e2dd5559-37ca-454a-97af-da55935106b9. Lisa Original Message From: Tom Cravens [mailto:nfn16799@naples.net] Sent: Tuesday, October 20, 2015 11:56 AM To: ResnickLisa Subject: Info on Wood Greetings Lisa, Please send to following as a one way message to the PBSD Board; It has come to my attention the the repair work on the North Boardwalk in Pelican Bay is using wood that has been treated with copper. The wood is CA-C Treated wood. Tom Cravens Tom Cravens e-mail nfn16799 @naples.net Website http://www.tomcravens.com/ Under Florida Law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public records request, do not send electronic mail to this entity. Instead, contact this office by telephone or in writing. Copper Azole type C Pressure Treated Wood Safe Handling Information This wood has been preserved by pressure treatment with an EPA-registered pesticide containing copper and azole compounds to protect it from termite attack and decay. CA-C(Copper Azole Type C)preservatives penetrate deeply into and will remain in the wood for a long period of time. However,some preservative may migrate from the preserved wood into surrounding soil or water over time and may dislodge from the wood during construction or use upon contact with skin.The following precautions should be taken when handling the treated wood and in determining where to use or dispose of the treated wood. HANDLING AND USE RECOMMENDATIONS Do not burn preserved wood(see Disposal section).Avoid prolonged inhalation of sawdust.When sawing,sanding,or machining wood, wear a dust mask.When power-sawing and machining wood,wear goggles.Wear gloves when working with wood.All sawdust and construction debris should be cleaned up and disposed of after construction.After working with the wood and before eating,drinking, toileting,and use of tobacco products,wash exposed areas thoroughly.Wash work clothes separately from other household clothing before reuse.Preserved wood should not be used where it may come into direct or indirect contact with drinking water,except for uses involving incidental contact such as freshwater docks and bridges. Do not use preserved wood under circumstances where the preservative may become a component of food,animal feed,or beehives. Do not use preserved wood for mulch.Only preserved wood that is visibly clean and free of surface residue should be used for patios,decks,and walkways. Use hot-dip galvanized fasteners meeting ASTM-A153/A653, 304 or 316 stainless steel,or other fasteners and hardware as recommended by the hardware manufacturer.Do not use preserved wood in direct contact with aluminum. Mold growth may occur on building products, including untreated or treated wood.To remove mold from a treated wood surface, mild soap and water is typically used. DISPOSAL RECOMMENDATIONS CA-C products which are no longer usable,such as cutoffs,broken boards,sawdust or treated wood material taken out of service,may be disposed of in landfills.Treated wood should not be burned in open fires or in stoves,fireplaces,or residential boilers. ufpi.com ©2014 Universal Forest Products,Inc.All rights reserved.7784_6/14 1 0 al N tn. 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(V 4- (1) ,...- (13 L.), tS£ W I s- CD Vi 0. . 4-..: H. 4., Ill 4- — ,...., s... 4-4. to VI i >' C D >' 0 > ' 0 i CU 0 0 0 0 i al 0 0 0 . . ■I < a. <:0,'<, I I--:0- I-- U I-- • , I 1 i I 7 i , ■ 1 , , . . i ■ . 1 i . , Z I . I U) Ln in I La,Ln Ln L.0/LC) 1 ' ■ , 1 1 • en I i I : I 1 1 1 i . ! 1 I I I . , . ' I ._...1 I I iii I i 1 • I 1 1 i • 1 to From: WE Marls williamemor ns. v2 1c0-a_ Subject: Re:Littoral Plantings II 0a`:e: January 4,2015 at 12:45 PM Ta: david trecicer d;r2Gh Hi Dave, And Happy New Year to you as well. Hear is a partial listing and our experience with several plants on Sarasota County's list. I have asked my resource for the complete listing, as I couldn't find it on the Sarasota County web site. Listed in order of preference/success: #1. Arrowhead. Sagittaria lancifolia. Has nice white flowers,hardy, and self seeds. 2-3 feet tall. #2. Pickerelweed.Pontederia cordata. Has nice purple flowers, hardy, and slowly expands. 2-3 feet tall. #3. Spike Rush and jointed rush. Rush fuirena Brown spikelets, hardy, 2 feet tall. There are 5 different fuirena in Florida. These three are our currently preferred species, as they are hardy, not too tall, and provide softie color. We are planting these on our littoral shelves and along our shoreline to reduce erosion. We have found success in planting like species in tight groupings of 20-25 plants. This minimizes tilapia damage, and allows plants to get established. Best luck planting in spring at start of growing season. One footnote: The supplier stock can vary quite a bit in quality depending on when and how they harvested the plants. Some "floaters" will appear after planting, so need to have follow-up visits included in pricing to replant the floaters. 1 year guarantee is good as well. In round numbers about$1.00-1.25/plant planted. #4. Validus rush. Scirpus validus. A medium height bull rush, about 5 feet tall. Used sparingly due to height, but adds variety. #5. Golden Canna Canna flaccida. Has nice yellow flowers,hardy, and self seeds. 2-3 feet tall. This plant grows best at the transition from wet to dry. We have some test plots, and this shows promise for future plantings. #6. Californicus rush. Schoenoplectus Californicus. A tall rush,can grow 8 to 10 feet high, but very hardy in dry soil areas. We plant this where a screening is desired, or other areas where home owner views will not be impaired. #7. Smartweed. Polygonum hirsutum. We have removed this plant as it dies back in winter and is an ugly black/brown color while the snow birds are here. But it grows quickly providing almost instant coverage. Unfortunately it will also spread across open water, so it does not stay on the littoral shelf areas, and we have had to have people bring in boats to cut this back to the shelf area. More info as I get it. We have a meeting with our pond maintenance people tomorrow to review the "limited spray" program that we started in 2014 on 21 of our 67 ponds. We want native species to be nurtured,while spraying for invasive plants and grasses. A balancing act that we are trying to manage. We are expanding to 27 ponds for 2015. Still trying to educate home owners that perimeter aquatic plants are "good" as they prevent erosion, and attract shore birds. Change is a tough sell. Lir,'UNIVERSITY of ENH1215 FLORIDA IFAS Extension Florida-Friendly Plants for Stormwater Pond Shorelines.' Gail Hansen and Shangchun Hue Selecting aquatic and shoreline plants for stormwater ponds is more challenging than selecting plants for a typical landscape.Site conditions can vary greatly and are more difficult to control.For example,water depth sometimes � :.. ' fluctuates widely,creating wet and dry conditions.Water quality varies with rainfall and fertilizer inputs.Steep slopes can make plant establishment and retention difficult.The : concept of using the right plant in the right place is particu lady important in the shoreline environment because the '=�, , planting area includes a dry slope and a littoral shelf with ` shallow and deep water areas.Three questions to ask when *b .r selecting plants include 1)What environmental conditions does the plant need to row?2)How do you want the plant ,� '„ 7f x ' ,T t � � �r A P g � � #�.�� >� �� . � ass �.� � to function?3)What do you want the plant to look like? �a.; ` ` ? ' 1>s# ir`�;. � Table I lists recommended plants that were selected based i _4M ` . �"`� '°`, Y °' �� ' on these three questions. Growing Conditions t r Depth A site inventory and analysis guides plant choices by noting Water depth must be considered when choosing plants environmental conditions in the pond and on the shoreline. because wetland plants grow in three different zones Conditions that affect plants in aquatic habitats include (upper,middle,and lower littoral zones)with varying water water depth,fluctuating water levels,foraging fish,soil depths.The littoral zones are those areas where the land structure,the slope of the littoral shelf,and light availability, and water meet along the shoreline,and they are described Conditions that affect upland plants include soil structure by the water depth.Emergent wetland plants are rooted in and bank slope.Selecting native aquatic or wetland species the soil in the shallow water of the upper littoral zone with that are adapted to the environmental conditions could the upper portion of the plant out of the water.Emergent increase survival during establishment and sustainability wetland plants are further divided into short-stemmed following planting. marginal plants that do well in wet mud or sand and marginal plants that grow on the bank and prefer changing 1. This document is ENH1215,one of a series of the Environmental Horticulture Department,Florida Cooperative Extension Service,Institute of Food and Agricultural Sciences,University of Florida.Original publication date May 2013.Visit the EDIS website at http:t,/edi4.ifas.ul.ec 2. Gail Hansen,assistant professor,and Shangchun Hu,PhD student,Environmental Horticulture Department,Florida Cooperative Extension Service, Institute of Food°:nd Agricultural Sciences,University of Florida,Gainesville,Ft.32611. The Institute of Food and Agricultural Sciences(WAS)is an Equal Opportunity Institution authorized to provide research,educational information and other services only to individuals and institutions that function with non-discrimination with respect to race,creed,color,religion,age,disability,sex,sexual orientation,marital status,national origin,political opinions or affiliations.U.S.Department of Agriculture,Cooperative Extension Service,University of Florida,WAS,Florida A&M1 University Cooperative Extension Program,and Boards of County Commissioners Cooperating.t4IckT.Place,Dean water levels.Floating wetland plants have roots that dangle The slope of the bank leading to the water's edge can and are rooted in the pond bottom in the middle littoral present challenges for the establishment of a no-mow or zone.Submerged plants grow entirely underwater and are no-maintenance plant buffer zone.The plant buffer func- typically located in the lower littoral zone where the water tions as a protective barrier by preventing fertilizer runoff is deepest.Creating deeper areas by excavation can help and grass clippings from entering the pond.To establish expand the size of planted areas for submerged plants. plant material,several techniques can be used to prevent erosion and capture irrigation water for the slope plants. Fluctuating Water Levels Mini-baffles(landscape timbers or bio-logs)installed on Ponds that have fluctuating water levels present a challenge the downhill side of plants hold water and keep soil from when selecting plants.The plants need to thrive in both eroding.Porous landscape fabric such as burlap or jute wet and dry conditions,sometimes for extended periods. also traps sediment and water.Rip-rap made from stone, Emergent plants that are more tolerant of drawdowns concrete rubble,or pavers can help slow water runoff at (exposed pond soil)include pickerelweed(Pontederia spp.), outfalls,and swales and berms along the bank intercept and duck potato(Sagittaria lancifolia),golden canna(Canna slow water movement,allowing it to percolate. flaccida),spikerush(Eleocharis spp.),and blue flag iris(Iris vilginica). Light Availability Light availability is the most important factor in plant Foraging Fish:Controlling Grass Carp growth and is primarily determined by water clarity and Although grass carp(sterile triploid)are sometimes used depth.Water clarity is determined by organic color and I suspended particles,both organic and inorganic.Bottom- for biological control of aquatic vegetation,they can present feeding fish such as carp and catfish can increase suspended problems with new plantings.Grass carp prefer submerged sediment,which blocks light and may limit plant growth. plants,but they also browse on the tips of young,tender, Slowing surface runoff with plant buffers and no-mow emergent plants.To prevent loss of new plants,install a barricade around the plants,such as four-wire fencing or zones and using rip rap at drain discharge areas can help plastic net fencing from the pond bottom to the top of the decrease turbidity(cloudy water caused by suspended water until the plants are larger and less tender. soil particles)from water movement.Nutrient levels from both soil and humans in ponds can affect light availability Soil Structure by increasing algal growth,which decreases water clarity. Large trees on the shoreline with wide canopies that arch Soil(substrate)conditions are important for plant growth. over the water can create a problem with shade.Plant large Rocky bottoms in the pond are too hard for plant roots to trees on the north side of the pond so the shadow is cast penetrate,and muck soil is too soft and unstable to anchor primarily on the pond bank,particularly in the winter. plants.Sandy soil with some organic matter(between rocks and muck)is usually best.Too much organic matter can create high levels of acids,methane,ethylene,and alcohols, 1'u nction which are toxic to plants. When selecting plants,it is important to consider plant function for that particular site.Functional characteristics Slope of Littoral Shelf include foliage density to block views,root mass density Steep slopes,which create excessive changes in water levels and depth to prevent erosion,stalk density to buffer water and growing conditions,make establishment more difficult. movement,and the ability to take up nutrients and pollut It is important to determine the average water level along ants to improve water quality the shoreline on a yearly basis because many plants will die if they are too wet or too dry for long periods.Manipulating Erosion Control the depth and slope by grading is one of the best ways to Trees in the water at the pond edge can help control erosion encourage plant growth.Littoral zone width often increases by breaking up the wind and wave action that contributes as the pond gets older because water movement over to it.Large trees that do well in wet conditions include red time increases sedimentation from bank erosion,which maple(Ater rubrum),loblolly bay(Gordonia lasianthus), decreases the depth of the pond. and bald cypress(Taxodium spp.).Strongly rooted emergent plants also help prevent erosion by buffering the Slope of Pc id Bank wave action that undermines upland plant roots.Emergent rinridn..Criondly Plemec fro Ctr,rnn..nmr Pend C1,nfelIns: p lants include spikerush(Eleocharis spp.),Fickerelweed Form (Pontederia cordata),and duck potato(Sagittaria lancifolia). Growth habit or form is the most recognizable plant quality. Choose the plant form most appropriate for the desired function.It is important to remember that plants,especially larger plants and trees,change over time as they grow.Make Visual Quality your choice based on the full-grown size of the plant,but Most people enjoy a variety of color,texture,and forms to also consider the form at planting and intermediate stages create a pleasing composition that enhances the aquatic of growth.Form also helps determine if plant material habitat.In aquatic environments,people generally prefer should be used in masses or as individual specimens.In plants that grow in clumps with large,coarse-textured green large,open areas such as ponds,large,upright plants with foliage and colorful flowers.Aesthetically,they also prefer well-defined leaves that grow in large clumps are often plants that don't block the water view,are neatly organized preferred.Floating plants with broad,flat leaves,such as in the landscape through repetition,and have a less weedy water lilies,work well as long as they don't spread and or messy look.The recommended plants in Table I were cover the entire pond surface.A lake mower can be used selected for their performance on pond shorelines and the to control lilies by selectively cutting some lily pads and visual characteristics typically preferred by homeowners. leaving others for fish habitat.Because lilies spread their Some plants,such as soft rush(Juncus effuses)and Ameri- roots(rhizomes)laterally,the only other method to prevent can bulrush(Scirpus amcricanus),do well on shorelines spread is planting in submerged containers. but were not included in the table because they tend to have a more"weedy"look.California bulrush(Scirpus Size californicus)was also not included because the height It is important to consider the size of the plant when it is can block views of open water.Submerged plants,such as fully mature.Tall plants can sometimes block views when eel grass(Vallisneria americana),were also not included they are mature,so consider height as well as spread.The because they are not visible,so aesthetic appeal is not a slope to the water affects the visual height of the plant, consideration. depending on the plant's location on the slope.Tall plants at the top of the slope can block the view of the water,so Color locate low-growing plants at the top of slope and taller Color is usually the most attractive visual characteristic plants at the bottom.Remember to consider the amount of of plants,but it also is the most fleeting,as most plants flooding(or occasional standing water) they can tolerate if only display prominent color during short bloom periods. they are lower on the slope. The site's light qualities—sunny or shady areas—affect the perception of color.Warm,colors,such as white,yellow, Recommended Plants orange,and red,show up more in aquatic and shady Although Florida-Friendly Landscaping"plants include environments because they contrast with the darker blues, native and non-native plants,the plants recommended greens,and browns of water and foliage.Cool colors,such for the water edge zone are natives,as required by Florida as blues and dark purples,are less noticeable because they regulations for planting in water bodies.Native plants are tend to blend with greens.Including a variety of greens in not required on the bank slope zone,but the recommended the aquatic plants creates interest year-round. plants typically do well on dry slopes.Generally,the plants in Table I were selected for their foliage size,variety of Texture textures,flower color,growth habit and height,aesthetic Textures are typically described as coarse(large,broad acceptability,survivability in varying water depths,ability leaves and big stems) medium (average leaves and stems), to withstand wet and dry conditions,and ability to grow in or fine(tiny leaves,thin stems).Texture can provide a wide range of zones. contrast and interest,particularly when color variety is lacking.Stormwater ponds are often viewed from a dis- Additional Resources tance,so bold-textured plants with large,broad leaves and big flowers show better.Use a fine textured plant,such as Denny,G.,and G.Hansen,G.2013.Right Plant, Right Place: a grass,to contrast with the bold texture and provide more The Art and Science of Landscape Design—PIant Selection interest. and Siting.ENH1156.Gainesville:University of Florida r:r,,rm,,_r.,,,r,rr,.pr.,,,, I,, cforn,,.•ats+v r,,,.,,a er■.,.,dr,,., Table 1. Recommended plants for stormwater pond shorelines Water edge zone Plant Height Light Water depth USDA zone Arrowhead 3.5' Full sun to partial shade 6"-12" 5-10 Sagittaria latifolia I Blue flag iris 2' Partial shade Moist to wet;water 8b-11 iris virginica edge Duck potato 3' Full sun to partial shade 6"-12" 6-10 Sagittaria Iancifolia Fragrant water lily Floating Full sun to partial shade 30"-36" 8a-11 b Nymphaea odorata Golden canna 3' Full sun to partial shade 12"-18" 8-10 Canna flaccida Pickerelweed 3' Full sun to partial shade 6"-18" 3b-10 Pontederia cordeta Sand cord grass 4' Full sun Dry to wets water edge 8b-11 Spartina bakerii Splkerush 2.5' Full sun to partial shade 6"-12" 8a-11 b Eleocharis cellulose&interstincta Swamp lily 2' Partial shade 3" 7-11 Crinum americanum Bank slope zone African iris 3' Full sun to partial shade Dry to wet 8b-11 Dietes iridioides Blue mistflower 2' Full sun to partial shade Moist 4-11 Conoclinium coelestinum Blue porterweed 2' Full sun Dry to moist 9-11 _:•: Stachytarpheta jamaicensis Fakahatchee grass 4' Full sun to partial shade Dry to moist 8-11 Tripsacum dactyloides Florida gamagrass 3' Full sun to partial shade Dry to wet 8-11 Tripsacum floridanum Muhly grass 3' Full sun Dry to wet 7-11 Muhlenbergia capillaris Passion vine 0.5' Full sun Moist 8-11 Passiflora incarnate Scorpion tail 1.5' Full sun to partial shade Dry 10-11 Heliotropium angiospermum Institute of Food and Agricultural Sciences.http:Iledis.ifas. ufl.edulep4l.6. Florida LAKEWATCH.2007.A Beginner's Guide to Water Management:Aquatic Plants in Florida Lakes.Information Circular 111.Gainesville:University of Florida Institute of Food and Agricultural Sciences. White,G.F.,E.B.Worthington,and V.C.Ackerman, 1973.Man-Made Lakes:Their Problems and Environmental Effects.Richmond,VA:William Byrd Press. Pinrdn_P4n.dr Pinrntr f.,Ctnrn,n'nt"r Rind cl,nralnac a Estimated Cost to Install Aeration in Remaining PBSD Lakes Basin Lake Description Power Source Cost 1 8 Naples Grande Solar $6,900 1 7 Naples Grande Solar $14,600 2 2 Ridgewood Park Solar $7,000 2 1 Ridgewood Park Solar $6,900 2 3 Lake Vista Solar $13,900 2 4 Georgetown (south lake) Solar $14,800 2 8 Georgetown (west lake) Solar $13,600 2 9 St. Maarten/Commons Solar $14,300 2 10 Glenview Solar $6,800 4 3 Isle Verde Solar $14,450 5 1 Community Center Solar $7,050 5 3 Avalon Solar $14,400 5 5 County Park Solar $14,300 5 12 Bay Colony Shores Electric *$6,375 5 11 Bay Colony Shores Electric *$3,125 5 10 Bay Colony Shores Electric *$2,975 5 9 Bay Colony Shores Electric *$3,095 5 13 Bay Colony Shores Electric *$2,785 6 1 Trieste Solar $7,100 6 2 Ritz Carlton Solar $6,800 TOTAL $181,255 * Additional costs will be incurred to install electrical aeration systems and are dependent upon existing site conditions. Estimated average cost to install new electrical service or to modify existing electrical service ranges from $3,000 - $7,000. This estimated cost does not include electric usage costs to be incurred following installation to operate equipment. Basin 1 Lakes 7&8 AQUAGENIX NOTE: Basin 2 Lakes 1,2,3, ' DeAngelo Brothers,Inc. FUTURE 4,8,9,10 14250 Jetport Loop West UNITS Basin 4 Lake 3 Fort Myers,Florida 33913 INSTALLED Basin 5 Lake 1,3,5 20015-2016 Phone:239-561-1420 Basin 6 Lake 1,2 Fax:239-561-2883 Pelican Bay Services District ..». C/0 Collier County Board of County Commissioners 3299 Tamiami Trail East,Suite 700 Naples,Florida 34112 Attn:Marion Bolick Issue Date: 09/04/2015 Acct# 2015 Solar Aeration Maintenance Agreement With signed authorization,Aquagenix will provide the following: All other parts not mentioned and labor will be at customer request and will be as a work order separate from the maintenance contract. Scope of Work: Clean(15)Solar Aeration System. Solar Aeration Maintenance includes cleaning and replacing filters,check tubing lines,adjusting valves and cleaning diffuser heads when needed.Inspect Solar Panels, Digital Timers and Batteries—No Parts Included. Note:Parts are not included with the maintenance contract.Any issues discovered with the solar aeration systems(s)during the scheduled routine maintenance event will be reported to the customer along with a quote for all repairs.A one hundred dollars per hour labor charge will be issued for any repairs or requests for inspection by the customer during the month's in-between the regularly scheduled maintenance months.This does not include any parts,only labor.A work order will be sent to the customer and must be signed and returned by the customer to Aquagenix before any inspections or repairs can take place. Disclaimer:This agreement may be terminated by either party with a sixty day written notice.Notification must be sent by Certified Mail,(Return Receipt Requested),to our local office at:1425o Jetport Loop West,Fort Myers,Florida 33913.Once notice is received, service will continue and the customer will be responsible for paying all invoices for these services through and up to the 6o day termination notice period end date. Unless agreed upon by both parties,this agreement shall automatically renew for a term equal to its original term,unless a notice of cancellation has been received as outlined above.The annual contract amount may be increased at a rate of 4%per year on the anniversary date of this agreement.Unless otherwise agreed to in writing by both parties at the beginning of the contract term,services will continue at the increased rate without interruption. Lakes: See Attached sheet for locations Visit Schedule:Four times per year in January,February,March,April,May,June,July,August,September,October,November, December The Total Contract Amount: $3,000.00/per year $750.00/per quarter Aquagenix,division of Customer DeAngelo Brothers,Inc. Customer Print Name Date NOTE Basin 5 Lakes FUTURE UNITS TO 9,10,11,12,13,14 AQUAGENIX BE INSTALLED 2015-2016 DBI Services 14250 Jetport Loop West Fort Myers,Florida 33913 Phone:239-561-1420 Fax:239-561-2883 Pelican Bay Services District C/O Collier County Board of County Commissioners 3299 Tamiami Trail East,Suite 700 Naples,Florida 34112 Attn:Marion Bolick Issue Date:09/04/2015 Account#: AERATION MAINTENANCE AGREEMENT With signed authorization,Aquagenix will provide the following: Scope of Work: Clean( 6 )Aeration System.Maintenance includes cleaning or replacing filters,checking tubing lines,adjusting valves and cleaning diffuser heads when needed.Replace piston repair kit every two years. Note:Parts are not included with the maintenance contract.Any issues discovered with the aeration systems(s)during the scheduled routine maintenance event will be reported to the customer along with a quote for all repairs.A seventy five dollar per hour labor charge will be issued for any repairs or requests for inspection by the customer during the month's in-between the regularly scheduled maintenance months.This does not include any parts,only labor.A work order will be sent to the customer and must be signed and returned by the customer to Aquagenix before any inspections or repairs can take place. Lakes: See Attached Sheet for Locations Visit Schedule:Four times per year in January,February,March,April,May,June,July,August,September,October, November,December Total Contract Amount: $720.00/per quarter $2,880.00 /annually Aquagenix Representative Customer Print Name Date Customer Signature Date Disclaimer:This agreement may be terminated by either party with a sixty day written notice.Notification must be sent by Certified Mail,(Return Receipt Requested),to our local office at:14250 Jetport Loop West,Fort Myers,Florida 33913.Once notice is received,service will continue and the customer will be responsible for paying all invoices for these services through and up to the 6o day termination notice period end date. Unless agreed upon by both parties,this agreement shall automatically renew for a term equal to its original term, unless a notice of cancellation has been received as outlined above.The annual contract amount maybe increased at a rate of 4%per year on the anniversary date of this agreement.Unless otherwise agreed to in writing by both parties at the beginning of the contract term,services will continue at the increased rate without interruption. PREVENTION AND TREATMENT OPTIONS FOR ALGAE AND DUCKWEED • Reduced nutrient runoff from fertilizers and irrigation water • Subsurface aeration (increases DO, keeps bacteria aerobic, inhibits coalescing of algae) • Littoral plantings (soaks up nutrients, traps grass cuttings and other particulates) • Floating islands (soaks up nutrients) • Bacteria (degrades nutrients, reduces organics in sediment) • Physical removal of coalesced algae and duckweed • Fish (eat coalesced algae and duckweed) • Chemical removal (precipitation, e.g., with phosphate or carbonate; membranes; adsorption on solid) • Chemical kill (cupric sulfate, peroxide or organic herbicides) REMOVAL OF COPPER • Physical removal (sediment dredging) • Chemical removal (precipitation; ion exchange; adsorption on solid, e.g., clay; electroplating) • Biological removal (oysters, filter marsh) ' 4 From: Knowlton,Troy [Troy.Knowlton @cpsagu.com] Sent: Wednesday, October 14, 2015 10:54 AM To: BolickMarion Subject: Water testing Hey Marion, Nice meeting with you and the boys yesterday. I have attached SePRO's analysis for typical water testing. Whatever pond you decide to do the test plot with the bacteria...I have been given the OK to match product with you. Another words...the amount of bacteria you buy CPS will match for this test plot. Pond Boss Combo pack(for the first treatment)...$88.00ea Pond Boss block(every 60 days)...49.00ea. Both will treat 5 acre feet. Progression: 1-Determine size of pond (ac.-ft.)and treat existing algae 2-Baseline water test 3-Add Combo pak(s)day after treatment of algae 4-Add block(s)60 days after combo pak(s)for 6 months(May) 5-Water testing monthly TROY KNOWLTON AQUATIC SALES 727 348 7569 Crop Production CPs Service r1,1 or rat_nr+n CM,/M1Ory ., x,.,=...*.«a,..,......e...at..... .... ...... ,.,......,..�..m,,. tr. .<,.....c..,.o,.a... ,,.-s...,.. .,d<...,.:.., ......,..o....,.,..,.,,,.,®,.....�...,...,..,......,,..,....ate,. ...... > For more information on Agrium's E-Mail Policy or to unsubscribe,click here:http://www.aorium.com/email footer en.isp Pour plus de renseignements sur la politique de courrier electronique d'Agrium ou pour vous desabonnez.cliquez id htto://www.aorium.com/email footer fr.isp SePRO Research c SRTC &Technology Campus Water Quality Analysis Explanation These water quality parameters are essential to document the condition of a water body and design custom treatment prescriptions to achieve desired management objectives. pH: Measure of how acidic or basic the water is(pH 7 is considered neutral). <6 notably acidic 6-9 standard or ,ical reshwaters >9 notably basic 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Hardness:Measure of the concentration of divalent cations,primarily consisting of calcium and magnesium in typical freshwaters. 0-60 mg/L as CaCO3 soft;61-120 moderately hard; 121-180 hard, > 181 very hard Alkalinity-Measure of the buffering capacity of water,primarily consisting of carbonate,bicarbonate and hydroxide in typical freshwaters. Waters with lower levels are more susceptible to pH shifts. <_50 mg/L as CaCO3 low buffered;51-100 moderately buffered; 101-200 buffered; >200 high buffered Conductivity-Measure of the waters ability to transfer an electrical current,increases with more dissolved ions. <50 uS/cm relatively low concentration may not provide sufficient dissolved ions for ecosystem health;50-1500 typical f•eshwaters; > 1500 may be stressful to some freshwater organisms, though not uncommon in many areas Dissolved Oxygen-amount of diatomic oxygen dissolved in the water. <2 mgiL likely toxicity with sufficient exposure duration; <5 stressful to many aquatic organisms;2 5 able to support most fish and invertebrates Phosphorus:Essential nutrient often correlating to growth of algae in freshwaters. Total Phosphorus(TP)is the measure of all phosphorus in a sample as measured by persulfate strong digestion and includes;inorganic,oxidizable organic and polyphosphates. This includes what is readily available,potential to become available and stable forms. <12 pg/L oligotrophic; 12-24 pg/L mesotrophic;25-96 pg/L eutrophic; >96 pg/L hypereutrophic 1 Free Reactive Phosphorus(FRP)is the measure of inorganic dissolved reactive phosphorus(PO4"3,HPO4'2, etc).This form is readily available in the water column for algae growth. Nitrogen:Essential nutrient that can enhance growth of algae. Total N is all nitrogen in the sample or anic N`and Ammonia) determined by the sum of the measurements of g p ( g Ammonia) Y for Total Kjeldhal Nitrogen(TKN)and ionic forms. Nitrites and Nitrates are the sum of total oxidized nitrogen,often readily free for algae uptake. <1 mg/L typical freshwater; 1-10 potentially harmful; >10 possible toxicity,above many regulated guidelines Chlorophyll a: primary light-harvesting pigment found in algae and a measure of the algal productivity and water quality in a system. 0-2.6p0,oligotrophic;2.7-20 pg/l,mesotrophic;21-56 pg/L eutrophic; >56 pg/L hypereutrophic Turbidity-Measurement of water clarity.Suspended particulates(algae,clay,silt,dead organic matter)are the common constituents impacting turbidity. < 10 N al drinking water standards and typical trout waters; 10-50 NTU moderate; >50 NFU potential impact to aquatic life. Page 1 of 1 . , . , .., - maue III .;,•:.,,,—,',,..4.,, ,. ..-.,Yr411, :fp?, ... ... ,....... , , „tfz„. . -4- ..;,-s,,,,,-.3,,,f,-,,.... - ' ' 4,`ri'''' i' ' .',:";4-..."Ai':.'''''''''''4k. '4"....'•-f::' .• '; -;- +- — ;M:+1 11 i 0 ,= u 0A . ,. .,,i,; , 14,,,,,.._,-/ 07* ',.. -%.,. 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"5' -i,.,,,,.„.„.„ 1?-, i_7,!-,4,9...1, - - , - ,,* ---. -.— Tm 5 lb, The Block $.r.. k ttvi h°°1 ca::t.:b:9;''r e,%..:E. fu,.s:.,..ti5-..,a c.,7-r.!ee.:„:o'f Family of Bacteria Maintenance w: - 6rrnga17ns , Peck 4 ' • Controlled release regulates efficiency :' mt :' 4 • Reduces ammonia and nitrogen levels • Improves dissolved oxygen levels ,1/4 ,,i , ' ' I • Improves water clarity range• Effective over a wide e of pH conditions and water temperatures sludge ,, 't • Dissolves away organic • hSyigdnr oi fgiceannstluy i trieddeu, edeeeadeepxlaionutsmeadteerrisalea,aundsefidshbywaste I kr•&41.•-- PRO .......e"i7, (P°rId C rk of GeoGlobal Partners,LLC For more www.thepondboss.net 41111-11 FOor call 1(5ieBfeBr)m7a5t5b-6n7g5o0to www .. .—..- .— onGeltobaf Partners,LA.C:pond boss is a registered tr..madarta .--c'— ORDER DATE: P0 NUMBER: CUSTOMER NAME: OThe Block- 1 I ACCOUNT NUMBER._ : -,....; ' n .. Productio El The Block-5 lb. (Item#CBBPRS) ORDER QTY b.-24 pack (Item#CBBPR1-24) ORDER QTY: Crop lc CUSTOMER SIGNATURE: G Services enGtobal Partners,LLC The Stock.' 5Ih lvtanuf fC8SPFIS tit)-24 pack Manut liCe8Ppl_24 Made in immommuraresor USA,>. ar • 2 b ! a _ e i Bacteria Maintenance System Item #PROBUNDO1 rovvides over 60 days of treatment! ' t • Five 8 oz.Quick Release Water Soluble Bags for fast-acting treatment m om...•. • The BlockTM 5 lb.for long-term maintenance • Reduces ammonia and nitrogen levels > • Improves dissolved oxygen levels • Improves water clarity includes: fi • Effective over a wide range of pH conditions and water temperatures • Disso;ves away organic sludge • Significantly reduces noxious odors caused by hydrogen sulfide,dead plant material,and fish waste 5 Water Soluble Bags + 1 The BIOCkTM 5 lb. For more information go to www.thepondboss.net l C•jt f�'✓ x1"h Or call 1(888)755-6750 PRO CGeoGlobai Partners,LLG pond boss is a registered trademark of 6eoGlobat Partners.LLO. -. ORDER DATE: ___ CUSTOMER NAME: ACCOUNT NUMBER: PO NUMBER:, Bacteria Maintenance System Item#PROBUNDO1 ORDER QTY: Crop CUSTOMER SIGNATURE: Production C Services GeoGlotral Partners,LLC Baeter a Maintenance System Manor CPROBUNDO1 ResnickLisa From: david trecker[djtrecker @yahoo.com] Sent: Tuesday, October 13, 2015 5:11 PM To: ResnickLisa Subject: Bacteria Lisa - Dave Cook says The Crescent gets bacteria for its pond fromTLC Products (216) 472-3030, www.tic-products.com. He says cost is about $500/year for the single Crescent lake. Please advise Marion. Also, as discussed, peroxide trials should be in different lakes than bacteria trials. As you may recall, we got the very best test results with a combination of aeration+plantings+ bacteria. So at least one of the bacteria tests should be in a lake with aeration+plantings. Dave • 10/22/2015 , 41ex.:01 ..i..3/4..._...._ ti„,,,,,,,„;45,1,7#1„,,,,,,,,,..,,,„„..:: tv..7.1....,,,,,,„..,..,..„ '',F;%?,:1,1, ,1�.. Pelican Bay Services _.... Division " t. ;.ir■4 mss: An Updi'& ... ,I ...;-- 0„,s, VVa ,,,,,,.,. .4, O i ill 1 10/22/2015 tN PELICAN BAY SERVICES DIVISION WATERWAY SYSTEM Part of the South Florida Water Management District 0 63 freshwater lakes — retention ponds control runoff 44 lakes are the responsibility of the PBSD 19 lakes are the responsibility of individual .; associations i o Troughs to canal along berm, with culverts leading to' Clam Bay • o Clam Bay — Outer, Inner and Upper Clam Bay, connecting creeks and Clam Pass -_- :: ..:. ... .-= h am .* s .` ��-^ e,n ,�: "e. a %:,* --- C s h -1,T.,--%�, .' t \ - . I\ l� x :, \�'„�' ,f ` � I ` 1 `. ; r N 'l 'r 4x.;3 '' li.1, , , , ,,,,ftt ' " ` -a u „I., -4' .� .i� - n; - ..fit a,�p,3 a., +��r i a +-, t , > a 2 10/22/2015 � 4 � wMV+)"'a^,ef�^ut!«tiKstvvl^�•fu+ar"'�/'t Lakes Swales/Canals along berm Clam Bay 5 } ..- .. ELICAN 6AY SERVICES DIVISION STATE AND FEDERAL REGULATIONS o Man-made Lakes • SFWMD approval after construction No regulation thereafter c5 o Clam Bay U.S. EPA standards Florida DEP standards y 6 � i„�r r!I'_�� aT 'k is". ��b. C'`� ,.,< ! �,�i��T�€c3; 3^ � ♦�y,�-�c, � �� 3 10/22/2015 PELICAN BAY SERVICES DIVISION .. CLAM BAY WATER QUALITY Standard Actual Dissolved oxygen ? 5.0 mg/L 5.1 ** Total Nitrogen 0.81 mg/L* 0.50 ** Total Phosphorus 0.06 mg/L* 0.06 ** _ Copper s 3.7 pg /L 5.8 Inner Clam Bay ** 9.1 Upper Clam Bay ** - =__ * Midpoint of allowed range ** Average in 2011-12 - E Y<`BAY SERVICES DIVISION CLAM BAY WATER QUALITY Florida Department of Environmental Protection classified Clam Bay "impaired for copper" in October 2012 and gave Pelican Bay 5 years to develop a plan to deal with the problem 8 4 10/22/2015 .r.,4t4:71#2 41411 SEQUENCE OF PROBLEMS High fertilizer usage Excessive irrigation Nutrient accumulation in lakes 4, Algae bloom from excess nutrients - Reduced dissolved oxygen - Odor and sediment build up - Fish and bird kill Copper build-up from algae treatment 9 SEQUENCE OF PROBLEMS Fertilizer Runoff > Lake and Bay Nutrient Pollution Algae Bloom > Lake and Bay Copper Pollution Copper Algaecide 10 5 10/22/2015 ALICE S V APPROACH TO PROBLEM 1. Inform community and urge fertilizer BMP (2013-14) o Talks to local groups o Flyers to residents o Pelican Bay Post articles 2. Stop using copper algaecide o PBSD in August 2013 (44 lakes) o Individual associations in 2013-14 (19 lakes) 3. Find alternatives for algae control (10 test lakes) o Aeration 0 Floating islands o Littoral plants 0 Fish o Bacteria 1°. ��= - PELICAN BAY SERVICES DIVISION i'� WHERE DO WE STAND? o Copper levels dropping in Clam Bay o Algae and duckweed problems worsening in lakes 6 10/22/2015 PELICAN BAY SERVICES DIVISION � COPPER LEVELS IN CLAM BAY MOST RECENT RESULTS, Lig/L 2011/2012 2014 Average Average Outer Clam Bay 1.3 0.8 Inner Clam Bay 5.7 1.9 Upper Clam Bay 10.4 3.6 ®EP limit = 3.7 13 � • �- . 'erg r.k V. F <4- aGL "z:�\\; \. �`,z :''. PELICAN BAY SERVICES DIVISION .. . .....> _ ..-' �-.> WHERE DO WE STAND? • Copper levels dropping in Clam Bay • Less copper from lakes • Copper entering sediment • Tidal flushing to Gulf • Algae and duckweed problems worsening in lakes k . F/ 14 N.6" ,.`¢..a.�s'» 4 t �Y'ws i"s�`'�0�4�t'' '> 3` „�� " y 7 10/22/2.015 PELICAN.SAY SE Vate s DW45t0a WHERE DO WE STAND? • Copper levels dropping in Clam Bay • Less copper from lakes • Copper entering sediment • Tidal flushing to Gulf • Algae and duckweed problems worsening in lakes = -- • Continuing high nutrient & irrigation run-off • Non-copper algaecides less effective • Alternative treatments promising in trials 15 ?cam ti « �2 s# .e .� .5 i .�:.,,�� :�' -._-. .._�.s�.�i-}r�,z�ty .i.�rs , ��.9`.�".««.��` ��'.-.'�.:?rx...fir.. ,. ., M. TOTAL NITROGEN IN LAKES 4.0 8 3.5 7 3.0 d -44 6 s 2.5 20 \ S c ? V44 4 - m 4 73 1A 2 0,5 r 0.0 I' ,h ': i 1 1(. 0 : � bti titi 1ti titi titi .y3 y'3 y3 yb ,y& ,yh yQ ,ya r :� NM Rainfall -w- 1 2 GAS 3 -6-4 uw 5 v 6 8 10/22/2015 ti PELICAN BAY:.SERVICES DIVISION = TOTAL PHOSPHORUS IN LAKES 0.45 0.40 ,a,, 7 i 0.35 _..). 6 EY,.)-: \, 1 0.75 a ` r 0.20 - v - i � 4 3 p c 1 p f r � w-- �r \ o 0 15 J' , . 0� . (.4 2 0.10 vi , - I .P-0.05 1 I.{ /� 0 � . % h L 1. L 1 L h'7 M 'i '3 ff b A b h A h h h a' . , a 'o .1: `, 4 is @ ,‘„,.0. (,0 aS P`$ @ C V O c, - Min Rainfall --6 1 -- -2 o 3 --0-4 o-5 -i 6 n.a --6.,. :'..&\\\\_\\\\;,\,.\ .i. PELICAN BAY SERVICES DIVISION -�< �" hi... 2014 AVERAGE NUTRIENT LEVELS mg/L Total phosphorus Lakes 0.09 ]:_t:}:::= _ Irrigation water 1.97 =_ Nitrate/nitrite F Lakes 0.22 . Irrigation water 2.06 9 10/22/2015 -11„ BEST SUPPRESSION OF ALGAE* o Aeration + littoral plants (4 test lakes) o Aeration alone or plants alone (2 test lakes) o Floating islands (1 test lake) o Blue tilapia (1 test lake) *Visual examination over 7 - 15 months Role of bacteria uncertain Duckweed also a problem 19 GOING FORWARD o Expand aeration to additional lakes o Add littoral plantings o Evaluate bacteria and peroxide and reevaluate tilapia o Renew community presentations 20 10 10/22/2015 .. r ...> PELICAN BAY.SERVICES DIVISION WHAT CAN YOU DO? Demand that lawn/landscape management • companies: o Follow BMP for fertilizer use =_== o Direct irrigation heads and minimize irrigation water use o Collect grass clippings near lakes { i Clean groundwater and a healthy environment are everyone's responsibility! Y I } 22 A4'''.%‘' ... ^.s�. .*;:' +n .o`..�. 11 From: david tracker djtrecker @yahoo.com Subject: Re:Copper Azole Type C Date: October 26,2015 at 11:00 AM To: merlincdc @gmail.com Cc: Tim Hall Tim @turrell-associates.com, Jim Hoppensteadt jimh @pelicanbay.org, nfn16799 @naples.net I don't mean to get into an email war,but I disagree with Tim's brush-off.I am well aware of ligands and their ability to bind certain metal ions.I did research in that area a thousand years ago.Regardless of whether copper ions are bound in ligands,the copper must be in a biologically active form in order to kill microorganisms and preserve the wood.One has to assume that same biologically active copper is leachable and will enter Clam Bay. There are two instances in which this might not be a problem.(1)Only a small amount of copper treated wood is being used,and,in turn,only a small amount of copper could be leached into the water.In that case,the copper entering Clam Bay would be negligibly small.(2)As Tim proposes,the leached copper may be bound in the mangrove sediment and never reach Clam Bay. It all depends on whether we are comfortable with the risk. From: Tim Hall Tim @turrell-associates.com Subject: Re:Copper Azole Type C Date: October 25,2015 at 924 PM To: David Cook merlincdc @gmail.com Cc: david trekker djtrecker @yahoo.com, Jim Hoppensteadt jimh@pelicanbay.org, nfn16799 @naples.net E comment was based on my opinion of toxicity to the system. Free copper in high enough concentration is toxic to marine fish and invertebrates. However copper binds with organic carbon to form larger components called ligands which are not toxic. Even though the copper is still there it is not in a toxic form.If the wood being replaced is not over the water but in the mangroves then that copper will most likely be bound up in the soils and less likely to make it out into the open waters of the bay. The copper testing we have done is a digestive process which breaks the ligands and measures total copper,not just free copper which is why it is important that the samples not have any sediment when they are collected. You guys already removed a source of copper when you switched the decking from pressure treated to ipe wood a while back I'm not sure of the extent of the work being done but I don't think that the PT wood needed for minor repairs will contribute enough copper to be measurable. Sent from my iPhone On Oct 25,2015,at 5:57 PM,David Cook<merlincdc @gmail.com>wrote: Tim This topic is important to all of us Can you explain your comment z but more thoroughly? Thank you Sent from my iPhone I'm not sure what"bound up in organics before it makes it to the water"means.I can assure you that copper in any form will leach out over time and will be measurable as soluble copper by the techniques now used.It will be reportable to the FDEP as such. On Oct 21,2015,at 11:12 AM,James Hoppensteadt<jimh@peiicanbay.org>wrote: FYI;as a follow-up,I did contact Tim Hall about the use of the PT wood on the north boardwalk that is being used at the deck level above the water. He said."In the air over the mangroves would leach a little but be much more likely to be bound up in organics before it makes it to the water. I dcn't really have any concerns about it making contamination worse as the amount we are talking about is not a lot. There really aren't many good cost effective alternatives." Tim Sincerely, Jim Hoppensteadt President/COO Pelican Bay Foundation 6251 Pelican Bay Blvd. Naples, FL 34108 239-260-8460 direct 239-597-6927 fax The information transmitted is intended only for person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient,you are hereby notified that you have received this message in error and that any review,dissemination,distribution or copying of this message including any attachments is strictly prohibited. If you received this in error,please contact the sender and delete the material from any computer.***** Original Message From:James Hoppensteadt Sent:Tuesday,Cctober 20,2015 2:47 PM To:Tim Hall<tim Pturrell-associates.com> Subject:Copper Azole Type C Importance:High Tim, I know that pressure treated wood is often used in marine application. Wood being used to re-stabilize the North Boardwalk contains copper azole type C;I understand this is a better treatment substance than CCA,but do you have significant concerns of copper elements leaching out of this compound into the system? Sincerely, Jim Hoppensteadt President/COO Pelican Bay Foundation 6251 Pelican Bay Blvd. Naples, FL 34108 239-260-8460 direct 239-597-6927 fax *****The information transmitted is intended only for person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient,you are hereby notified that you have received this message in error and that any review,dissemination,distribution or copying of this message including any attachments is strictly prohibited. If you received this in error,please contact the sender and delete the material from any computer.***** <IMG 1162.JPG:> PBSD WATER MANAGEMENT Things that should be done to deal with water-quality problems in lakes, in descending order of urgency (1) Renew community presentations on fertilizer use and irrigation. (2) Complete littoral plantings in 2016. (3) Complete aerator installations in 2016. (4) Evaluate bacteria treatment. (5) Determine steps/timing for gaining maintenance easements to remaining 19 lakes. (6) Determine comparative cost-effectiveness of chemical touchup with physical removal of algae/duckweed. (7) Reinstitute sediment testing. (8) Evaluate copper touchup treatment in several test lakes. (9) Hire an expert consultant. (10) Consider transfer of maintenance responsibility for all lakes to the Foundation or to individual associations. (1)-(4) should be done immediately as part of our baseline responsibility. Evaluation of(5)-(7) should be done by or before the end of 2015. Dave Trecker 10/26/15 Copper Azole type C Pressure-Treated Wood Safe Handling Information This wood has been preserved by pressure treatment with an EPA-registered pesticide containing copper and azole compounds to protect it from termite attack and decay. CA-C(Copper Azole Type C) preservatives penetrate deeply into and will remain in the wood for a long period of time. However, some preservative may migrate from the preserved wood into surrounding soil or water over time and may dislodge from the wood during construction or use upon contact with skin.The following precautions should be taken when handling the treated wood and in determining where to use or dispose of the treated wood. HANDLING AND USE RECOMMENDATIONS Do not burn preserved wood(see Disposal section).Avoid prolonged inhalation of sawdust.When sawing,sanding,or machining wood, wear a dust mask.When power-sawing and machining wood,wear goggles.Wear gloves when working with wood.All sawdust and construction debris should be cleaned up and disposed of after construction.After working with the wood and before eating, drinking, toileting,and use of tobacco products,wash exposed areas thoroughly.Wash work clothes separately from other household clothing before reuse.Preserved wood should not be used where it may come into direct or indirect contact with drinking water,except for uses involving incidental contact such as freshwater docks and bridges. Do not use preserved wood under circumstances where the preservative may become a component of food,animal feed,or beehives. Do not use preserved wood for mulch. Only preserved wood that is visibly clean and free of surface residue should be used for patios,decks,and walkways. Use hot-dip galvanized fasteners meeting ASTM-A153/A653, 304 or 316 stainless steel,or other fasteners and hardware as recommended by the hardware manufacturer. Do not use preserved wood in direct contact with aluminum. Mold growth may occur on building products, including untreated or treated wood.To remove mold from a treated wood surface, mild soap and water is typically used. DISPOSAL RECOMMENDATIONS CA-C products which are no longer usable,such as cutoffs,broken boards,sawdust or treated wood material taken out of service,may be disposed of in landfills.Treated wood should not be burned in open fires or in stoves,fireplaces,or residential boilers. ufpi.com ©2014 Universal Forest Products,Inc.All rights reserved. 7784_6/14