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Agenda 11/18/2016 PELICAN BAY SERVICES DIVISION Municipal Services Taxing & Benefit Unit NOTICE OF PUBLIC MEETING NOVEMBER 18, 2016 THE WATER MANAGEMENT COMMITTEE OF THE PELICAN BAY SERVICES DIVISION WILL MEET AT 11 :00 AM ON FRIDAY, NOVEMBER 18 AT THE PELICAN BAY SERVICES DIVISION, 3RD FLOOR OF THE SUNTRUST BUILDING, SUITE 302, LOCATED AT 801 LAUREL OAK DRIVE, NAPLES, FL 34108. AGENDA 1. Pledge of Allegiance 2. Roll call 3. Agenda approval 4. Approval of 10/20/16 meeting minutes 5. Audience comments 6. Water quality status of lakes (recent reports) 7. Sediment analyses 8. Monitoring Clam Bay for the presence of herbicides used to treat algae in Pelican Bay lakes. 9. Cost-effectiveness of various treatments 10. More complete information on the "lake spray records" 11. Lakes selected for "microfloc" testing 1-7 (Naples Grande front lake) and 3-5 (The Club Clubhouse lake) 12. Plans to deal with lakebank erosion 13. 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 OR VISIT PELICANBAYSERVICESDIVISION.NET. 11/14/2016 1:05:20 PM PELICAN BAY SERVICES DIVISION WATER MANAGEMENT COMMITTEE MEETING OCTOBER 20,2016 The Water Management Committee of the Pelican Bay Services Division met on Thursday, October 20 at 2:00 p.m. at the SunTrust Bank Building, 801 Laurel Oak Drive, Suite 302, Naples, Florida 34108. The following members attended. Water Management Committee Scott Streckenbein (absent) Tom Cravens, Chairman Dave Trecker Pelican Bay Services Division Staff Mary McCaughtry, Operations Analyst Neil Dorrill, Administrator Lisa Jacob, Associate Project Manager Marion Bolick, Operations Manager (absent) Barbara Shea, Recording Secretary Also Present Mike Shepherd, PBSD Board Rafael Vazquez-Burney, CH2M Hill APPROVED AGENDA (AS PRESENTED) 1. Pledge of Allegiance 2. Roll call 3. Agenda approval 4. Approval of 9/27/16 meeting minutes 5. Audience comments 6. CH2M Hill proposal for non-stoichiometric lake treatment to reduce phosphorus 7. Adjournment ROLL CALL Mr. Streckenbein was absent and a quorum was established AGENDA APPROVAL Dr. Trecker motioned, Mr. Cravens seconded to approve the agenda as presented. The motion carried unanimously. APPROVAL OF 09/27/16 MEETING MINUTES Dr. Trecker motioned, Mr. Cravens seconded to approve the 09/27/16 meeting minutes as presented. The motion carried unanimously. 1 Pelican Bay Services Division Water Management Committee Meeting October 20, 2016 AUDIENCE COMMENTS None. CH2M HILL PROPOSAL FOR NON-STOICHIOMETRIC LAKE TREATMENT TO REDUCE PHOSPHORUS Mr. Rafael Vazquez-Burney, a consultant with CH2M Hill, provided a presentation on micro-alum dosing for algae management in stormwater lakes. He provided background information which included: • High levels of nitrogen and phosphorus continue to persist in PB lakes. • The source of these nutrients is run-off into the lakes. • Algae requires both nitrogen and phosphorus to thrive. • Limiting one of these two nutrients would drastically reduce lake algae. • Phosphorus contained in the lake sediment continuously goes back into solution. Mr. Vazquez-Burney provided an explanation of ultra-low alum dosing which included: • Alum dosing causes lake phosphorus to be sequestered in the sediment. • Aeration systems can be used to disperse the alum into the lake water. • This process is low cost, low tech, and low risk. • It takes approximately three weeks to complete one lake's alum dosing. • After a dosing, positive effects (clear lake water) are immediate. • The estimated effectiveness is six months. • Subsequent to a dosing, phosphorus levels must be monitored to determine when the next dosing is needed. Mr. Vazquez-Burney suggested that the PBSD develop a test plan for a few PB lakes to evaluate the results of alum dosing. Dr. Trecker commented that he believes "alum dosing" warrants serious consideration. He suggested a trial in two test lakes which have consistently high levels of phosphorus. He emphasized that the test lakes cannot receive any other algae treatment during the trial period. Mr. Cravens suggested that Mr. Vazquez-Burney provide the same presentation to the full board at the November 2 PBSD Board meeting, and requested that an approximate cost of a trial be provided as well. Mr. Vazquez-Burney agreed to attend the November 2 meeting to provide his presentation. ADJOURNMENT [The meeting was adjourned at 2:50 p.m. Tom Cravens, Chairman Minutes approved [ 1 as presented OR [ 1 as amended ON [ 1 date 2 Agenda Item#6 Page 1 of 47 TECHNICAL MEMORANDUM Pelican Bay Stormwater Lakes Water Quality Monitoring Program: August 2016 Sampling Event Data Review PREPARED FOR: Pelican Bay Services Division PREPARED BY: CH2M HILL DATE: November 3,2016 PROJECT NUMBER: 671093 Introduction Pelican Bay,a 2,300-acre residential community in Naples,Florida,is adjacent to a 570-acre mangrove preserve area known as Clam Bay.This community is served by a stormwater management system consisting of 63 stormwater lakes designed to attenuate stormwater runoff.The Pelican Bay Stormwater Lakes are distributed among six drainage basins which deliver stormwater runoff to the west to Clam Bay (Figure 1). The Pelican Bay Services Division (PBSD) is currently conducting quarterly surface water quality monitoring of 30 of the 63 stormwater lakes.The data collected is presented herein.At the end of fiscal year 2014,30 stations(29 lakes and one from the reclaimed water source),were selectively chosen based on demonstrated elevated concentrations of copper for the period of record and are listed in Table 1.This technical memorandum summarizes the stormwater lake water quality data collected by PBSD during August 2016 which is the fourth 2016 event(final deliverable for this fiscal year),and compares these data to historical water quality data gathered since November 2011. Appendix A presents a summary of the water quality results for all of the parameters analyzed by the Collier County Pollution Control laboratory in August 2016.Appendix B provides the entire laboratory report. Summary of August 2016 Water Quality Data On August 23, 2016,PBSD collected samples at the 29 stormwater lake monitoring stations and the reclaimed water source as shown in Figure 1.Surface water grab samples were collected and submitted to Collier County Pollution Control laboratory for analysis of the following parameters: a Nitrate-Nitrite o Ammonia o Total Kjeldahl Nitrogen(TKN) o Ortho Phosphate o Total Phosphorus(TP) o Total Suspended Solids(TSS) o Hardness o Arsenic o Copper o Zinc After collection of the surface water quality grab samples,field measures for the following parameters were recorded by PBSD staff: o Conductivity o pH Because water quality concerns regarding the potential influence of stormwater discharges from these lakes to Clam Bay revolve mostly around nitrogen, phosphorus,and copper,evaluations presented herein are focused on these parameters. Agenda Item#6 Page 2 of 47 FIGURE 1 Locations of Pelican Bay Stormwater Lake Basins and Monitoring Stations in Relation to Clam Bay Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016R Data Review VIIx� t Z 11 yl { ,i 4 Y 3 ,r�A�{ Y !,443 In SSP,' r S k`i',:g"moi ti l(Mtr 'r.{j 4 yr , „. <T7h 1l �` N! i)(, F. ii.*:.-.1:1' 1.1 est,r s � it t€ l i' � ..'i'', t( � !xt "'^�� a • Mt; 4r fi- ,r ;Tl.• &• :41 .,-: ;,=::,47;-.0-..- ..,,,...,A,4'-'7,31 of ' 4,' ''3 I;(.•1-,., .1f4 .,-;•/:,':i.,;",,V,,,„441, ‘‘,„, •t 144 r ` Id �i1110. ' r ° s ° „ i • $ 4A '?1,-,0,,(,:e r1"-±,';),.1.:74} 1 Mme" ', l ;t .i "j ' ...ix, '{}t', „it t. tt*y e.0,7,Xy!-Yy:',". *y. kit F. - yy,l,. Y* A. io°7,'*1'''SYY`Y.'Y.-• ii:yy, ,,,....ityl " '''''''''"'fr-'1,':' , a'i * i,a: wit?i.'i ,-1 2,, * '4‘.,',.--0,..4;ii! . • yi� . 1`.s a `3. \c,74.:,i'*'4,-,.:f: .:,,,414 ' I •, .7 C. `_,,,g• 1.: , '.11. ..t t:4,.. .°.„.1'.•4:,til '1,-;°„*.it ...,',., ,,,,,.,A4., , s . .,t,. it,,i„ � �, 'y '1 *� x Y Lk .., r7-..„:7„,,,,,* 74 .,: ,,,s ,A x ( a , fit ff e 2� I T. ,T )� 1\ , R c= F .4 )2 4 s,A LtkIr 141,4' f. # ; xs, ,' ° om! isF � r , si b b t-,,..r„...1,,:‘,,,,„6...las,,,:,, ._..,,„ -40 ,4,1 I -ir",„. ,,,,,,• .,,te am, ? •. - 8 141,1 1 ,�i �. i Air. �d0[OCA11Ot.5 ,e �a,�� x ,1 f 1l."< .: ";r 9 c`°cA"ys,'tr[E`D —_ L" ,+a1,t �j ... 1• i��{-,y d 1 €1 r $AWfU LOC ARb:'SASSOt$AI(U ato • T se. `li re �' -- _. ftiNt CIPR4T NATER ,it 1,;31 .' , its j STOR/N TOR 4W SAOLYItXt e , ,'A4 it,* 11,,r,41`, 4'li ki. , , ,1'..„,` ,, . .. c i'-,• r a. ,,,,,,,g.„.,,„w. „1, 2 .4,,,.,. pi, ,„,..,, .1,.i.* ''''i by1TM rir til a �1 r' J. , `-_if4 s 1' R i.,...---'it+ t `der '- t a;C� ' • .+i tt i Rol 4.s'Tarsi Nal ani As'-, e0.Et LA)' - 1: , CELL -St,.7-..;+t .t.i7.+. .•...tiaxra;ctioss,nr_ ..0 r--' 2 Agenda Item#6 Page 3 of 47 PELICAN BAY STORMWATER LAKES WATER QUALITY MONITORING PROGRAM:AUGUST 2016 SAMPLING EVENT DATA REVIEW TABLE 1 Water Sampling Locations of 30 Stormwater Lakes Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review Basin Lake Station Basin Lake Station No. Number ID Station Name Station Name No. Number ID 1 3 1-3 MID 4 5 4-2 Bay 2 6 1-4 Crayton 2 4-4 Bay 4 7 1-5 Registry S 12 4-6 Crescent Swale 1-6 Heron 8 4-7 Pelican 6 2 1 2-1 Ridgewood Pk 14 4-8 Coco Bay 5 2-2 George N 11 4-10 Pelican 3 3 2-3 George W 5 1 5-1 Hammock Oak 12 2-4 Club 4 2 5-2 L Ambience 7 2-5 Club 7 8 5-5 Breakwater S 13 2-6 Lugano 11 5-7 Bay Colony EN 3 2 3-1 Laurel Oaks 12 5-8 Bay Colony WN 6 3-4 Pelican 9 15 5-10 Viscaya 8 3-5 Interlochen 6 2 6-2 Remington 9 3-6 Valencia (2) N/A RC Reclaimed Water Source 7 3-8 Pelican 1 5 3-9 Club 9 Nitrogen Concentrations Nitrogen monitoring in the Pelican Bay stormwater lakes consists of analyses of the nitrogen species that make up total nitrogen including nitrate-nitrite,ammonia,and TKN. Because TKN represents the sum of ammonia plus organic nitrogen(ON),the concentration of ON can be calculated by subtracting the concentration of ammonia from TKN.Total nitrogen(TN)is defined as the sum of nitrate-nitrite,ammonia, and ON. Mean concentrations for each drainage basin were calculated for each nitrogen species,based on the August 2016 data collected.Figure 2 presents the average TN concentration for each basin and the relative contributions of each form of nitrogen to the basin mean. Average TN in August 2016 for all basins ranged from 0.86 to 1.50 mg/L.Basin 2 had the highest TN average (1.50 mg/L),followed closely by basins 3 and 4(1.33 and 1.40 mg/L respectively).Basin 5 had the lowest average value(0.84 mg/L).The highest TN concentration(2.20 mg/L)was measured at station 4-10(Basin 4, lake no. 11).The lowest TN concentration(0.60 mg/L)was at station 5-01(Basin 5, lake no.1).Figure 2 shows that on average,approximately 90.0 percent of the total nitrogen is in the form of ON.The remainder of the nitrogen is,on average,5.9 percent nitrate-nitrogen and 4.1 percent ammonia. Overall,the average measured TN values for Basins 1 through 4 during the August 2016 event were lower compared to the May 2016 event. Basin 5 maintained an average TN basin value comparable to the May 2016 event,and Basin 6 increased slightly. In open water systems,such as the stormwater lakes at Pelican Bay,ON typically comprises a significant fraction of the background TN present in the water column due to inorganic nitrogen uptake and cycling from wetland plants,algae,and soils.Typical background TN concentrations in stormwater systems range from 0.6 mg/L to 1 mg/L depending on the nitrogen loading.During the August 2016 sampling event,TN 3 Agenda Item#6 Page 4 of 47 levels in 19 of the 29 stormwater lakes monitored were above this typical range which suggests that nitrogen loading to these lakes is likely higher than typical for stormwater ponds but reductions in the overall average TN indicates improvement.The reclaimed water(RC)sampling location used for irrigation had a TN concentration of 5.48 mg/l.in August. Reclaimed water and fertilizer applications within Pelican Bay are likely sources of the nitrogen load to the stormwater lakes. FIGURE 2 Average Total Nitrogen Concentrations by Basin in August 2016 Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review 1.6 1.4 1.2 0 1.0 e 0.8 0 U eel 0.6 --- op 0 0.4 760 0.2 -____ r troori- Basin 1 Basin 2 Basin 3 Basin 4 Bailin 5 Basin 6 ON(mg/L) Ammonia(mg/L) Nitrate+Nitrite(mg/L) To assess the variability of the nitrogen values at the different sampling locations within each basin, box and whisker plots(a.k.a. box plots)were developed for TN. Box plots are a graphical method for summarization of data variability. For a data set representing all of the TN values for a given basin,the median value is identified along with various measures of how variable the data within the basin are(maximum and minimum values as well as the 75th and 25`h percentile values). If extreme outlier values are present,they generally are excluded from these evaluations of variability, but are shown graphically as indicated in Figure 3. Generally,the median values are the key point of comparison when assessing differences across data sets. Data sets(in this case, basins)where the variability bars from the 25"i to the 75'percentile values overlap are typically not considered significantly different from each other. 4 Agenda Item#6 Page 5 of 47 __ PELICAN BAY STORMWATER LAKES WATER QUALITY MONITORING PROGRAM:AUGUST 2016 SAMPLING EVENT DATA REVIEW FIGURE 3 Explanation of the Features of a Box and Whisker Plot Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review X •--outlier 4--MAXIMUM ;; .........__..._-__-._ --Q3(/5'Percentile) U MEDIAN E C a—01(25'Percentile) -+—MINIMUM Satnplinq Location Figure 4 compares the six Pelican Bay Stormwater Lakes basins based on the August 2016 TN data. Basin 3 had the greatest variability, with samples ranging from 0.72 to 2.10 mg/L.However Basin 4 had the highest measured TN sample this quarter at station 4-10,measuring 2.20 mg/L. Basin 1 showed the least amount of variability. Basins 1 and 5 had a similarly low median TN of 0.8 mg/L. Basin 5 had the lowest measured sample at 0.60 mg/L TN at station 5-01.The highest median value was observed in Basin 2 at 1.4 mg/L. Overall,the median values have improved compared to earlier sampling events(November 2013)where median values for all basins were above 1.5 mg/L. Despite the long-term concentration reductions, in terms of relative contribution of TN loadings to Clam Bay from the Pelican Bay Stormwater Lakes system,these basins appeared to have a high potential for contributing nitrogen based on the nitrogen concentration data. Flow records would be needed to assess actual mass nitrogen loading to Clam Bay. FIGURE 4 Variability of TN Results per Basin for August 2016 Results Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 2.5 - Max Outlier Min Outlier 2.0 - E 1.5 [7:1—=1 LU (� 1 I— 0.5 - 0.0 1I Basin 1 Basin 2 Basin 3 Basin 4 Basin 5 Basin 6 5 Agenda Item#6 Page 6 of 47 Phosphorus Concentrations Phosphorus monitoring in the Pelican Bay Stormwater Lakes consists of analysis of two forms of phosphorus,orthophosphate and total phosphorus(TP).Orthophosphate represents the inorganic form of phosphorus.Organic phosphorus is calculated as the difference between the TP and orthophosphate concentrations.Mean concentrations for each drainage basin were calculated for each phosphorus species, based on the August 2016 data.Figure 5 compares the average TP concentration for each basin and the relative contributions of each form of phosphorus to the basin mean. For this analysis,the measured phosphorus value for station 5-10 was removed due to laboratory error. Station 5-10 had a measured orthophosphate concentration of 2.4 mg/L,greater than the station's total phosphate concentration,0,309 mg/L. Average TP in all basins ranged from approximately 0.09 to 0.22 mg/L, excluding Basin 6,during the August 2016 event. Basin 3 had the largest average TP concentration(0.22 mg/L)of all basins. Basin 3 had the largest measured TP concentration (0.42 mg/L),which was measured at station 3-01(basin 3,lake No.2). Basin 1 had the lowest average TP concentration(0.09 mg/L),however basins 2,4,and 5 had similarly low average TP concentrations ranging from 0.10 to 0.13 mg/L.The last eight events show similar results for Basins 1 through 5,with the greatest average TP concentrations occurring in basin 3. Basin 6 is represented by a single measurement at station 6-02(Basin 6, lake No.2).The TP concentration for Basin 6(0.29 mg/L) appears to be an outlier when looking at its historical values,as Basin 6 has not been above 0.17 mg/L since May 2014. For the August 2016 event,Basins 2,4,and 5 average TP concentrations were only slightly different(less than 10 percent)compared to the May 2016 event. Basin 3 average TP decreased by 0.03 mg/L,or 14 percent,and Basin 1 average TP decreased by 0.04 mg/L,or 32 percent.Overall,average TP has been fairly stable and comparable to the last seven events,beginning with August 2014, Figure 5 shows that Basins 3,4,and 6 are comprised of nearly equal parts orthophosphate and organic phosphorus.Orthophosphate average values ranged from 0.03 to 0.12 mg/L.Basin 3 had the largest average measured orthophosphate concentration,calculated to be 0.12 mg/L,or 54 percent of the average TP concentration,which is also the largest ratio of orthophosphate to organic phosphorus average concentration. Basins 1,2,and 5 are comprised of mostly organic phosphorus as compared to orthophosphate.Organic phosphorus average quantities ranged from 0.06 to 0.10 mg/L.Basin 2 contained the highest average of organic phosphorus(0.10 mg/L),or 72 percent of the average TP concentration,the largest ratio of organic phosphorus to orthophosphate. Basin 6 had a calculated organic phosphorus value of 0.17 mg/L,the largest organic phosphorus value of all the measured stations. Lakes that have higher ratios of orthophosphate to organic phosphate can be considered to potentially reflect a more direct influence from landscape fertilizer application practices.Higher concentrations of orthophosphate are more conducive to producing algal blooms. 6 Agenda Item#6 Page 7 of 47 PELICAN DAY STORMWATER LAKES WATER QUALITY MOt:ITORING PROGRAM AUGUST 2016 SAMPLING EVENT DATA REVIEW FIGURE 5 Average Total Phosphorus Concentrations by Basin in August 2016 Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review 0.30 0.25 bA , 4 y 0.20 s 0.15 o. c 0.10 L - 0.05 0.00 1 Basin 1 Basin 2 Basin 3 Basin 4 Basin 5 Basin 6 Organic Phosphorus (mg/L) Orthophosphate (mg/L) To assess the variability of the TP values at the different sampling locations within each basin, box plots were developed for TP. Figure 6 compares the six Pelican Bay Stormwater Lakes basins based on the August 2016 TP results. Basin 3 had the greatest range of variability, highest median value at 0.189 mg/L,and the highest measured value of 0.422 mg/L, measured at station 3-01, (Basin 3, lake no. 2),however this was considered an outlier. Basin 2 had the lowest measured value of 0.044 mg/L, measured at station 2-02 (Basin 2, lake no.5), however this was considered an outlier. Basin 1 had the lowest median value at 0.085 mg/L. Basin 1 had the smallest range of variability, ranging from 0.065 mg/L to 0.111 mg/L. Basin 5 has shown a significant improvement in median TP values since November 2013 where values were observed above 0.3 mg/L. Basin 6 consisted of a single sample,which is not sufficient for statistical analysis. FIGURE 6 Variability of TP Results per Basin for August 2016 Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 0.45 - 0.40 - 0.35 p.30 -. _ E O.25 - 2 00.20 - 0. 00.15 - o0.10 - 4.3 t i-0.05 - 0.00 .__.- I 1 Basin 1 Basin 2 Basin 3 Basin 4 Basin 5 Basin 6 Agenda Item#6 Page 8 of 47 Copper Concentrations Copper monitoring in the Pelican Bay Stormwater Lakes consists of analysis of surface water samples for total recoverable copper. Figure 7 presents the average copper concentration for each basin.Average copper in August 2016 for all the basins ranged between 14.5 and 33.2 µg/L. Basin 4 had the highest average copper value(33.2 pg/L),and the highest measured value for this event(97.5 pg/L),located at station 4-10 (Basin 4, lake no. 11). Basin 5 had both the lowest average copper concentration (14.5µg/L),and the lowest measured copper value(1.78 pg/L)at station 5-07(basin 5, lake no. 11). A decrease in total recoverable copper concentrations in all basins has been observed when compared to the May 2016 sampling event,with decreases ranging from 22 to 67 percent.Compared to the same season last year(August 2015), Basins 1,3,5, and 6 maintained similar levels,while Basin 4 decreased by 31.8 µg/L (49 percent decrease),and Basin 2 increased by 14.5 µg/L(a 326 percent increase).Overall, median copper values measured during this event are about 50%of the values measured in November 2013,a direct result of discontinued copper sulfate application. FIGURE 7 Average Copper Concentrations by Basin in August 2016 Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 35 30 ba N 25 LT. S . v 20 S2 15 o 0 10 = co � 0 5 0 Basin 1 Basin 2 Basin 3 Basin 4 Basin 5 Basin 6 To assess the variability of the copper values at the different sampling locations within each basin,box plots were developed for total recoverable copper. Figure 8 compares the August 2016 copper data for the six Pelican Bay Stormwater Lakes basins. Basin 4 showed the greatest level of variability with samples that ranged between 12.8 and 97.5 pg/L. Basin 4 had the highest measured value for this event at 97.5µg/L, located at station 4-10(Basin 4, lake no. 11).Basin 1 had the lowest variability of all the basins with more than one station sampled,ranging from 5.0 to 28.8µg/L. Basin 3 had the lowest median copper value at 14.3 pg/L. Basin 1 had the highest median copper value at 21.8µg/L. Basins 3 and 4 continue to show the largest variability in measured copper,the greatest mean concentrations and the greatest measured values but significant improvement is measured since November 2013 where median values hovered closer to 30µg/l. or above. 8 Agenda Item#6 Page 9 of 47 PELICAN BAY STORMWATER LAKES WATER QUALITY MONITORING PROGRAM:AUGUST 2015 SAMPLING EVENT DATA REVIEW FIGURE 8 Variability of Copper Results by Basin in August 2016 Pelican Say Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 120 - *Max Outlier ,Min Outlier x, 100 - a 80 - r�. 0 U 75 60 - ro 8 40 - 8 1E111 11L71I 1 Basin 1 Basin 2 Basin 3 Basin 4 Basin 5 Basin 6 The surface water quality standard for copper in the State of Florida's Class III freshwater lakes is a calculated value and varies based on water hardness.This standard is not directly applicable to the Pelican Bay Stormwater Lakes since they are man-made lakes designed to treat stormwater and manage runoff. However,the calculated values provide a reference value for comparison with the monitoring results. Hardness for the August 2016 monitoring in the Pelican Bay stormwater lakes ranged up to 199 mg/L CaCO3. Applying this value to the formula provided in Ch.62-302,F.A.C.,yielded a copper reference value of 16.8 pg/L.Water quality within 14 of the 29 stormwater lakes at Pelican Bay in August 2016 reflected concentrations above this copper reference value,nine fewer lakes above the copper reference level than assessed during the May 2016 event. Table 2 summarizes the August 2016 sampling results by distributing basin sites by copper concentration ranges.Twenty-one of the 30 stations(72 percent) had copper concentrations of 25 pg/L or less.Eight of the basin sample sites,or 28 percent,were measured in the range of 26 to 100 pg/L,seven of which were less than 51 pg/L. No sample sites were measured at 100 pg/L or greater this quarter. In August 2015,64 percent of the sample stations were less than 25 sg/L,and 11 percent,were measured at 100 sg/L or greater.The distribution of total recoverable copper concentrations were lower during this event than recent results but overall concentrations are remaining relatively steady. 9 Agenda Item#6 Page 10 of 47 TABLE 2 Distribution of Basins by Copper Results in August 2016 Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review Basin Basin Avg. Stations with Copper Concentrations,inµg/L {µg/L} <12 12-25 26-50 51-75 76-100 101-125 >125 1. 19.3 1-05 1-03 1-04 1-06 2 19.0 2-03 2-01 2-04 2-06 2-02 2.05 3-08 3-04 3-01 3 22.4 3-09 3-05 3-06 4-02 4-08 4-10 4 33.2 4-04 4-06 4-07 5-07 5-01 5-02 5 14.5 5-08 5-05 5-10 6 1.8 6-02 Comparison of August 2016 to Historical Monitoring Data The historical monitoring data from November 2011 through August 2016 were compiled and analyzed to generate basin-level means for all parameters monitored over the period of record.The means for each basin in each quarter were used to generate time series plots for TN,TP,and total recoverable copper to compare the current basin concentrations to the entire period of record.It should be noted that the period of record data were adjusted to show only the 30 lakes selected for this quarterly report.The number of lakes monitored was reduced from 45 to 30 lakes during December 2014. Historical rainfall data were obtained through the South Florida Water Management District's DBHYDRO database.The site previously used to collect rainfall records,BCBNAPLE,database key LX271,ended its operation on March 30,2016.From this report forward, rainfall will be collected from C00013,database key 00535,with latitude 26°15'22.3"N and longitude 81°46'47.3"W,which is located near the spillway on Cocohatchee canal at Palm River Rd.This rain gauge is managed by the South Florida Water Management District.The rainfall records are from November 1,2011 to August 31,2016 were collected from C0001_R for comparison with the collected water quality parameters.Rainfall data previously collected from BCBNAPLE was replaced with C0001_R to maintain a consistent dataset. Figure 9 presents a time series plot of basin mean TN concentrations for the period of record.A slight declining trend in TN is evident from November 2011 to August 2013. From November 2013 to May 2015, the mean TN values trended upwards with peak values noted in February 2015.Since February 2015,the basin averages have been decreasing,and have returned to levels comparable to events prior to March 2013.Typically, Basins 1,5 and 6 have lower values than Basins 2,3 and 4.In August 2016,Basins 1,5,and 6 had the lowest TN average concentrations near 1 mg/L while Basins 2,3,and 4 had average values near 1.5 mg/L,which are still above-average background concentrations for stormwater ponds. 10 Agenda Item#6 Page 11 of 47 PELICAN DAY STORMWATER LAKES WATER QUALITY MONITORING PROGRAM AUGUST 2016 SAMPLING EVENT DATA REVIEW FIGURE 9 Basin Average Total Nitrogen Time Series for Period of Record Pelican Ray Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 6.0 6 5.0 5 LID E 4.0 4 A 3.0 •" 5 E 1 2 v k_ O 1.0 t _41 4 r T ,i r (� R 0.0 ,.,� �a , IIII ,. I �H I I.IIii 1111 �i �if i I� III , J 1,01111111.M 0 ti' titi� ;�' ti� �' 4" 4' 4' tihtit�? 'v) ti� ti� it; � a � `Nei- P \' Q (rP9QOQ%-'6' ,QQ <<v\,,'6 Rainfall 1 --2 3 4 5 6 Changes in nitrogen observed in each basin are attributable to a complex chemicaland biological interaction and seasonal factors,such as variation in rainfall and associated runoff inputs,along with fertilization practices and schedules. In addition,the discontinuation of algaecide can influence the nitrogen cycle by changing the effect of the primary producers on the uptake and recycling of nitrogen.All basins showed similar TN ranges before August 2013, but TN concentrations started varying significantly once the use of copper sulfate was terminated.These stormwater lakes are designed to retain the first flush and control direct discharge of these nutrients to Clani Bay.Adding littoral and in-pond vegetation cover would promote additional treatment and attachment surfaces for microbial films to enhance the nitrogen cycling and conversion to reduce the overall nitrogen load to the bay. Figure 10 presents a time series depicting the basin mean TP for the six basins for the period of record.All basins show a variable trend over time since 2011 with minimum levels experienced by all basins in February 2014. Since August 2014. Basins 1,2,4, and S appear to have stabilized with average TP concentrations between 0.05 to 0.15 mg/L. Basin 3 TP remains significantly elevated and fluctuates more than the other basins. Basin 6 TP was significantly elevated this quarter but this may be an outlier compared to Basin 6's historical values,which range from 0.08 to 0.17 mg/L since August 2014. The majority of inorganic phosphorus present is likely associated with sediment cycling. Concentrations of phosphorus are elevated even during times of low rainfall and external load. In general,stormwater lakes provide little TP removal due to phosphorus solubilization of settled sediment.It is typical for settled phosphorus not to remain in the lake sediment, but to cycle back into the water column increasing TP in lake discharges between storm events.The levels observed within these stormwater lakes are likely in equilibrium with sediment cycling and are not expected to decrease in the near term,even if loads to the lakes were reduced. 11 Agenda Item#6 Page 12 of 47 FIGURE 10 Basin Average Total Phosphorus Time Series for Period of Record Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review 0.60 6 0.50 5 ;0.4() 4 To 3 ._ 0.30 44 ;`.a X 0.20 II if, I I 2 _ v 4.41 0.10 I 1 � I d � �.�hl �I 'rl� i � 1, '1� �` Il �� '� �' ei (� . t�lig ll�tt` 0 ©0.00 , c ti< ,y ; ro�o,yo " Q � , Wel aN,° Rainfall -4-1 -44-2 3 v 4 1. 5 6 Filgure 11 presents a time series depicting mean copper concentrations for the period of record for the 6 basins.The significant decrease in average copper concentration ,Leftwe and after August 2013 appears to be a direct result of discontinued use of copper-based algaecides.">Y :oe'u l concentrations of copper have shown a decreasing trend from August 2013 to August 2016. Copper concentration decreased from the previous quarter in Basis 1 through 5 but did not show a similar decrease in Basin 6. No stations measured more than 100µg/L of copper.Station 4-10,where copper typically measures greater than 100µg/L,approached this threshold at 97.5µg/L. Copper levels overall appeared to have reached an equilibrium with accumulated sediments.Fluctuations in concentration may be associated with perturbations to the sediment layer.Windy days,fountains,and general maintenance within the lakes may disturb sediment,resulting in changes in copper concentrations in the water column. FIGURE 11 Basin Average Total Recoverable Copper Time Series for Period of Record Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review 600 6 Discontinued 500 - use of CuSO4 in 5 August 2013 Do 400 4 co v-. a" 300 3 ® " II I 200 ' k 2 v I 100 I di ,+a It `: �{ I' 1 { 1� it , )91 ,4.1 0 ,I SII I I. '- II;3I I '�I � � Ii I.I I. 0 15G titi ti ;�ti,titi titi� ti ,ti ti' ti ,ti°`,ti°` ti ti ,ti '• :�`' ti ,tip,tip tip' °' a� @ � '�Q �° a\`a � 0(er) �2C J p°ca�sa �� °4 ��' aJ�J\ Rainfall r 1 -43 2 3 No__4 5 6 12 Agenda Item#6 Page 13 of 47 PELICAN BAY STOR W TER LAKES WATER QUALITY MONITORING PROGRAM.AUGUST 2016 SAMPLING EVENT DATA REVIEW Reclaimed Water The historical monitoring data of the reclaimed water samples from November 2.011 through August 2016 were compiled and analyzed to compare reclaimed water quality to the average basin water quality of the stormwater lakes. Figure 12 presents a time series plot of the reclaimed water TN compared to the basin mean TN for the period of record. Note the difference in scale between the two vertical axes.There is no trend evident for TN from November 2011 to August 2016, however,the average reclaimed water TN for the period of record is 6.78 mg/L,which is greater than the average TN value for each of the basins.This comparison to reclaimed water does not take into account the lag time for applied reclaimed water to reach the stormwater lakes and/or groundwater and any direct effects may be attenuated. FIGURE 12 Reclaimed Water and Basin Average Total Nitrogen Time Series for Period of Record Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 6.0 12.0. `ea7 E 5.0 10.0 C t, 0) an M 2 4.0 8.0 2 2 3 I:51 3.0 6.0 7-1 • - 4.0 � 2,0 +$-1 u N (0 .� f/ ., t 4u,. „•� yam"' �' t i "C3 r� � 17, 0 0.0 0.0 n 'v 'L ,L yb 1 'y \ ' ' 9gh J� �,�i �o to ay �� y �yy \N ,•;\, `\oJq, 0 1_ 2 3 4 5 6 --.—RC Figure 13 depicts reclaimed water TP compared to the mean TP for 6 basins for the period of record.There is no trend evident for TP concentration in reclaimed water from November 2011 to August 2016.The reclaimed water TP for the period of record averaged 1.99 mg/L,which is significantly higher than the average TP concentration in each of the basins.The average composition of TP in reclaimed water is 80 percent or more orthophosphate.Only the November 2013 and February 2016 measurements show an approximately 50 percent composition of orthophosphate and organic phosphate. 13 1 Agenda Item#6 Page 14 of 47 FIGURE 13 Reclaimed Water and Basin Average Total Phosphorus Time Series for Period of Record Pelican Bay Storm water Lakes Water Quality Monitoring Program:August 2016 Data Review 2.0 3.0 ,_J 4 .J £ - 2.5 - • 1,5 Ot> 0. 2.0 v n \N/ 0 1 :: ? 05 " r. b:41:-.44,:t f ,.1 t »: n_--'...,4-4,„ ,(rf' _11,„'. , ,....t a W. 0 0.0 �� 0.0 r V) \oN �i(>\,,,a\P�4 5 <<e� ,a\PJ��ci <4.ic a\PJ%,c\o,Qe'2 4a\,i,,,..\\5\<400\vO, :1_ —2 3 4. . 4 :,_-5 6 —0---11C Figure 14 compares the mean copper concentrations in reclaimed water with the six basins over time.The average total recoverable copper for each of the basins,except for Basin 6, is typically much greater than the total recoverable copper measured in reclaimed water.Since May 2013,copper in reclaimed water has been less than 8 pg/i.anti averaged 4.8 pg/I (May 2.013 to August 2016). In February 2016, however,the reclaimed water copper concentration was 18.5 pg/L. Based on historical data,this sample is an outlier. In August 2016, reclaimed water measured 2.3 pg/L total recoverable copper. FIGURE 14 Reclaimed Water Total Recoverable Copper Time Series for Period of Record Pelican Bay Stormwater Lakes Water Quality Monitoring Program:August 2016 Data Review 600 600 __ 00 500 500 t 0, a. O. • 400 - 400 0 v N N t; 300 300 46 I- v ! 0; 7, 200 , 200 10 co coto "' -le V 1.00 ' . _ f/ / u _ ,- rt� . �� 1 100 ' } _t ' pis E0 16 n. vi 4',�,v ,yL ,y'L y1l ,y'L 'v' 'i' `i' ti' , 4' ti� ti� :. ) ti� tit y� ,yo ,yk° ,h-C') `\61<e�'�aX WJ%,\(3\'‹e,c',\�J ,o�' )`ra\4J \d'�Q '0 v,,..)%.04'<e�' ,a\,c,,.� —1 . 2 , 3 - -4 5 6 —.—RC Observations and Recommendations Based upon a review of the August 2016 monitoring results,the following observations are made on water quality trends observed within the six Pelican Bay stormwater lake basins. 14 Agenda Item#6 Page 15 of 47 PELICAN BAY STORMWATER LAKES WATER QUALITY MONITORING PROGRAM:AUGUST 2016 SAMPLING EVENT DATA REVIEW Nutrients have shown slight improvements since November 2013.However,these lakes continue to experience nutrient concentra ions a ypereu rop cc eve s. ++ E e so e fast s s ow s :` ower levels since the last quarter,the improvements are not statisticaffy significant.Basin 3 continues to be the most affected basin for both nitrogen and phosphorus. Total recoverable copper remains significantly lower than historical concentrations since August 2013 when copper sulfate use for algae control ceased,Only 1 station out of 29 had a higher copper concentration in August 2016 compared to the preceding quarter.Copper concentrations appears to decrease slightly during increased rainfall,suggesting a dilution or flushing effect from the lakes during periods of higher rain and runoff.However,copper concentrations appear to have reached an equilibrium with sediment cycling. Copper concentrations in future quarters are expected to fluctuate seasonally but remain similar if no further action is taken. Despite the overall decline,copper concentrations continue to be above the typical range of surface waters and significantly above the Florida Class III water body standard.While state water quality criteria are not directly applicable to the stormwater lakes,the FDEP has expressed concern that stormwater discharges to Clam Bay may be having an effect on estuarine water quality for copper.Additional water quality monitoring will support conclusions on long-term trends in copper and the contributions to Clam Bay. Implementation of treatment systems in strategic locations within the stormwater lake system continues to warrant consideration,primarily to address nutrients and algae blooms in the stormwater lakes.Treatment and removal of nutrients will likely show a similar benefit to copper with an expected concomitant decrease, The long-term data suggest that both phosphorus and copper are cycling from the sediments and have reached an equilibrium that leads to high lake background concentrations that are no longer associated with the loads to tea es.Contro ing phosp orus cyc ing will lead to significant lake aesthetic improvements. One approach to control sediment cycling is"geochemical augmentation",which consists of ultra-low dosing of alum to enhance the natural geochemical process of sediment sequestration.Alum is a common chemical used for phosphorus and metals removal in drinking water operations via flocculation.However,the ultra- low dose approach would be at small concentrations below floc forming concentrations so there would be no accumulation of solids.With this method,lakes would be dosed once to several times per year.Existing aerators could be used to mix and disperse the small dose of liquid alum.A simple approach would be to strap a dosing hose onto the diffusers in the middle of the bubble stream and meter the liquid alum in gradually.This could readily be tested at Pelican Bay.Evaluation of the efficacy would involve normal water quality sampling and observation of water clarity. If the test of this approach proves to be successful,a practical implementation approach could consist of using a mobile dosing trailer to dose all of the lakes once or twice per year.This would avoid the cost and aesthetic concern of permanent infrastructure. A pilot study of treatment systems could offer an effective solution to regulatory concerns in Clam Bay and improve algae/scum water quality concerns within the Pelican Bay Community. 15 Agenda Item#6 Page 16 of 47 Appendix A Analytical Results of the August 2016 Monitoring Of the Pelican Bay Stormwater Lakes Agenda Item#6 Page 17 of 47 A A •A A <tb W W l.) W W W '.D• bJ N N N N) N N ,Y co '--j '"- — "-' ' '.':W''.'.' ��`'`. co l V 0 O 0 0 ! 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A A O -4 �t VI w 01 W 01 -4 .P Vt i 00 O O O O — O - O O O O O - C' - - 000 0 1 0 O - - .'�:.:: __1 V, ,0 b O J 00 _ 00 VD AO fin Oo +s A N O ut A VD VO 00 V. �1 \0 .` �D O O O 0 O i 0 O O O O O 0 1 0 O O O O O O O O O O 9 O O N O iv j .•- ..—..— iJ ;•-` ,,— •A !! .-- Na O O ,'--- O O O ,1 O .1 In 14 A _ 100 W •A '-•' 1.0 N '•••' 'O O A O •A\ .-A 00 ON 00 t-+ 00 :'b,`. A V0 •P NO O\ A O\ co 00 W N CP, V. Vn Vi 00 A O ON Vi VI 1--' A 1 f -- O ,-- �. N N '--' O �O N O .-- O .-. .-. O .-- O •-- O .-. OF O '--' in in � O in (D in -) i0 N 00 'coi O in O in . v V Z-.71W A 4) ' .:0. f co N con A A V c , w w cn w C\ ',IO. J Vi VI 0 -4 1 -.1 - O1 ON e _ w _ ON A 'O '-O -1 O' O W l.I) O -1 V. N O A N I A :O VO In qg .n. Co A W iD A in in 4 A O W 1 in O iv O .A C A A 00 in i0 1` r. Y co .-• w .A. W Ui A w 1J A N A A ccitcn .� A A -N A cn A w s. :.1 O 000 c0 'O 00 00 V. 00 4) 0 00 00 A ON N 1 3 1-• VI '-' iO in Oo W I IJ -` :--11 IQ or 01 iO W -` O. �! Q\ O A � 01 1 - b:--' .0\ oo �. :.` .� I g ON W cn 00 O, -1 'c's' W N V A a\ D• J J ...4J Vi W i W A W W � O 00 00 O' O r1 In 00 .-- N N -4 1J i--. W .-- .A 0 00 ...1 00 �l O 0 Agenda Item#6 Page 18 of 47 ra a, :e�? to to to w to` a �, ; w+ w. o tqN *i e 0 o p o ,Oy N O oo -a tJ �-- A; O 00. ::: a 1 t�J v Q.) tp rn C.:, s.0 - r w A O A t+) iJ '-) 10 1/40 �I ao 1 0pp0 ao �1 �I �]; j ity ::..' `:•p ..I N 00 o00 NP 4) lt''n �O' .. . cn tJo „ . UWn. — W 00 0o W 'I 00 �Q la 00 In ;A O 00 la ON O IJ cn O ri A O .0 tJ O, A as p a` O O O O ' o oO O �� 7' N — A O N 0 O IJ O�0 :5 P 0 1 O ' O O O O O O O O O ::. -. J 4) r-• r--' r r — r-' r W 1 : Fes. O O —' — O O O r .-. O W O Oo LI i.n N In i0 00 ; to tT 01, O to to '0 0 i N O ;yr.. 1:; • O O r r--+ 0 0 O r IJ O :.`v :;.:, _� ... p r 00 00 O Ol A iJ iD 0o r 3 Q, 1 co 01 0 -I to O O O : O 1 N 0 0 0 0 0 O 0 0 tJ O 3 AO_ O O O O 0 r-+ O Q.'.r:.. . VAi N O O W J 61 � A J ...� �'� W 0 1D A IJ W r+ 0 i O '! .:; i t t 0 0 ! 0 N 0 0 0 0 0 0 '0 0 S .:_: C' 0 0 0 0 0 0 0 0 0 +b 00 rte- OHO w O O C O O O 00 W N 01 W D W ..�. . O O O 0 O '-' O O ' r U.) r ''� :,. ....:. A In Ji t.) ON W W r N .FA O A 0.: ON ON - A iJ O'. '.p W W W - A P to r' •.� 01 VI l4 : �D ,\O t..) U O\ r ; W W N Ni).),\ tJ in �I in in r+•., 4, N W w O 0000 CNh A oro J °\) a N tJ as, 00 th � N 00 d �t W to ON `1 in in W ' P N {" t/] Agenda Item#6 Page 19 of 47 Appendix B Chain of Custody of the August 2016 Monitoring Of the Pelican Bay Stormwater Lakes IIIIIIIIIIIIII AgendaAgendt1 em s yyn.. '0 ). r) n El 4 ti1,,g: ° n�3222 2g2222n §22Qo " ncv0• N P DDDOO4Op4OO O 8. g: nw ) ;�;v ro n O e � Z r/4t 3n. a N ; QoTrnmrnrnmrnmrnrnrnrnrnrnrnrn rg '4 13 wrp, q0 - :: cG ,v ^�A caN NN -. : o " w 9rH 0 amvV1 � .J G ��aYO 47 N .p U V 0 4J W�Na & -a O Cn co 0 t..1 .--• N 0 110.15 Ach. Q tst , .G R ` C1w � mVv� a,� .4VVWVJN #a ANOVNpONIn CONN � OOD4 — W Yr4®ZCr T 1 v m0 - 2 o po q � 1 5 I*? * * f �• oZ4+ A cnti �cpm .raoVanmrOpJ44(„no yWNN )� - dgCwW • A N-a W r f71 V CO CO V 0 D p 3 TA Cl p n O O p O 0000 q 000000 Ip(` ‹ °' a m 0 NN 0C�,T 0 Z n - y o� m m ie m. i Agenda Item#6 o z io 1 E., g to p „ n a� o. rt p 0 , r-.,i- 61 01 +i,' t uO• 6.tl �f g~N N z 9 W . mUI' r- r.O3.: 3; ice . 6 •_ "0 N VNi Z p 6 L~3 P w n� w cG •=4) Q� cspp g. PE. r et u. n �9 a V a Pit O O n _ . h d N . ry a, _ a 01il W �7{� g f.,1 N M. c K 3 3 Io Io • w ` 8 1 5 g m r r .. IOW•`1. 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LA 0 .1 .J• _. .../. ._ 2,a ..A ...1 _a_a ..a �+-.1. = 0 — Nf0 tv 0, -=.40usrc.uasPc,wxnP4Mr m _ _, D w m • %Z - on PC,IrvlcMC,Prep-1.4101 }c a"3 n-- 3 N ;MAN-WM CC-TP-OP,Ma dM -PC -•.O VDD ro tp fl► — ie =• 0 N°. v �m Tp ,a C � � S 0 ..H _• Z� - ZiX W,_ .--......-- -=.:--,_-,...,..._,==-_-----,,,,....=- rn DDDDDDDYDDD >D> D I- -N.0 _..- M. -----0 -%----4 ..-----= -I'T1-I'T) m "CI -n T T 71-n 'TIT•71 `11 s .--0 a O N ...., 3 v N 'n, _h W W W W W W W W W W W W W W W Al 6ia _'.0 a C?.'O p l7 a _-- _ 2 .A W C,PtQ� C�th fT -A A 0)pp co A W W 1! D - • 7,tD b = a, —= — 2 0 `..O' O 0100 A A 07 CTV O -1 01010)W,00, .,a 3 ^ m '8 [a lit ' M ,^°' �- 7 __,...... ____ _ sa . w Agenda Item#6 Page 23 of 47 Appendix C Laboratory Reports of the August 2016 Monitoring Of the Pelican Bay Stormwater Lakes Agenda Item#6 ANALYTICAL.RESULTS Page 24 of 47 o[therf -*Ant y Rcpor t/l: 082316PSTM " � ° PJ CONTROL Report: PELICAN BAY ."" LIVE GREEN. SAVE BLUE. COLLIER COUNTY TIO t 4CONTROL LABORATORY 3339 Tamiami Trail East Suite 304 • Naples,Florida 34 112 • 239-252-2502 • FAX 239-252-2574 Report to: Brock Marion Report Date:10/6/2016 Pelican Bay Services Report Time:9:24:24AM 6200 Watergate Way Naples,FL 34108 Collected by: PELICAN BAY SERVICES Collection Date: 08/23/2016 Submittal Date: 08/23/2016 0 15:52 Data Qualifier Code Key: L: 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, NosbeWevelf Q ACCQF4. Nosbel Perez 9.9oitmcO• Laboratory Supervisor Report//082316PSTM FL Stale laboratory 1D:E45164 EPA Lab Code:FL00919 Page 1 of 15 Agenda Item#6 Report#08231ff of 47 Lorgllpn; 1-6_HERQN Field D: AF13135 L[rbID: AF1313S CollectDate/IFmei;:8123116 09:23 Anal a to Natne MethodResult Qualifief. Units MDL P e L AF Anai sts iiiiirime Calcium EPA 200.7(Ca) 41.1 mg/L 0.720 3.60 1 09/15/2016 14:23 Magnesium EPA 200.7(Mg) 3.69 mg/L 0.220 1.10 1 09/15/2016 14:23 Arsenic EPA 200.8(As) 0.976 ug/L 0.100 0.200 1 09/13/2016 14:44 Copper EPA 200.8(Cu) 28.8 ug/L 0.100 0.350 1 09/13/2016 14:44 Zinc EPA 200.8(Zn) 4.25 ug/1. 1.00 3.00 I 09/13/2016 14:44 Ammonia EPA 350.1 0.042 I nig/I, 0.010 0.050 1 09/06/2016 11:17 Nitrogen-Total Kjeldahl EPA 351.2 0.730 mg/€, 0.051 0.255 1 09/02/2016 10:05 Nitrate-Nitrite(N) EPA 353.2 0.043 mg/I. 0.002 0.010 1 09/06/2016 14:00 Digestion for Metals SM 3030 D Completed 1 09/13/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P Il Completed I 08/24/2016 10:20 Hardness-Calculated SM18 234013 118 mg/L 1 5 1 09/15/2016 14:23 Residues-Nanfillerable('TSS) SMI8 2540 D 3.0 I mg/L 2.0 10 1 08/25/2016 10:40 Orthophosphate(P) SMI8 4500-P E 0.02 mg/1, 0.004 0.02 I 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.065 mg/I, 0.004 0.02 I 08/26/2016 13:29 Locrrlle:n: 1-4 CRAYTON Field ID: AF.1.3136 Lab II) AF13136 Collect Dale'Drne: 8/23/16 10,12 AnalyteName ' Method Result Qualtller Units -.: MDL PQL DF . Analysts DatefIune Calcium EPA 200.7(Ca) 41.8 mg/L 0.720 3.60 1 09/15/2016 14:27 Magnesium EPA 200.7(Mg) 3,71 mg/L 0.220 1.10 1 09/I52016 14:27 Arsenic EPA 200.8(As) 1.01 ug/L 0.100 0.200 1 09/13/2016 14:47 Copper EPA200.8(Cu) 28.4 ug/L 0.100 0.350 1 09/13/2016 14:47 Zinc EPA 200.8(Zn) 10.5 ug/L 1.00 3.00 1 09/13/2016 14:47 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 11:21 Nitrogen-Total Kjeldahl EPA 351.2 0.707 mg/L 0.051 0.255 1 09/022016 10:06 Nitrate-Nitrite(N) EPA353.2 0.019 mg/L 0.002 0.010 1 09/06/2016 11:21 Digestion for Metals SM 3030 D Completed 1 09/13/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/24/2016 I0:20 Hardness-Calculated SM 18 2340 B 120 mg/L 1 5 1 09/15/2016 14:27 Residues-Nonfilterable(TSS) SMI8 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 10:40 Orthophosphate(P) SMI8 4500-P E 0.01 1 mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.111 ntg/L 0.004 0.02 1 08/26/2016 13:29 Location 1�].11iJD Field ID AF13137 Lab ID: AF13137 Collect DirlelTFnte: 8123/16 09:38 , AitalyteName.' 1Methiol Result. Qualifiier .::Units MOI, PQL DF AnalysiSDate(firne Calcium EPA 200.7(Ca) 39.8 nig/L. 0.720 3.60 1 09/15/2016 14:31 Magnesium EPA 200.7(Mg) 2.99 mg/L 0.220 1,10 I 09/15/2016 14:31 Arsenic EPA200.8(As) 0.537 ug/L 0.100 0.200 I 09/13/2016 14:49 Copper EPA200.8(Cu) 15.1 ug/L 0.100 0.350 1 09/13/2016 14:49 FL State Laboratory ID:E45.164 EPA Lab Code:FL00919 Page 2 01'15 Agenda Item#6 Report#0823 ff'of 47 Zinc EPA 200.8(Zn) 7.19 ug/I, 1.00 3.00 1 09/13/2016 14:49 Ammonia EPA 350.1 0.011 1 mg/i 0.010 0.050 1 09/06/2016 1I:23 Nitrogen-Total Kjeldahl EPA 351.2 0.820 mg/L 0.051 0.255 1 09/02/2016 10:07 Nitrate-Nitrite(N) EPA 353.2 0.036 mg/1, 0.002 0.010 1 09/06/2016 11:23 Digestion for Metals SM 3030 D Completed 1 09/13/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed I 09/06/2016 09:35 Hardness-Calculated SM 18 2340 B 112 mg/1, 1 5 1 09/15/2016 14:31 Residues-Nonfilterable(TSS) SM 18 2540 D 2.0 U mg/1, 2.0 10 1 08/25/2016 10:40 Orthophosphate(P) SM18 4500-P E 0.031 mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphors-Total SM18 4500-P E(P 0.084 mg/L 0.004 0.02 1 09/07/2016 14:01 Location".1.5 REGIS RY S FlekIlD AF1313$ Lab IDS AFI3138 C`olleel Dgte/iinte 8123/16 09.05 Analyte Name . Method . Result. Qualifier 'Units MDI. PQL 1 . Analysis Datonme Calcium EPA 200.7(Ca) 55.6 mg/i 0.720 3.60 1 09/15/2016 14:35 Magnesium EPA 200.7(Mg) 4.78 mg/I 0.220 1.10 1 09/15/2016 14:35 Arsenic EPA 200.8(As) 0.539 ugh 0.100 0.200 1 09/13/2016 14:52 Copper EPA 200.8(Cu) 4.97 ug/L 0.100 0.350 1 09/13/2016 14:52 Zinc EPA 200.8(Zn) 21.4 ug/L 1.00 3.00 1 09/13/2016 14:52 Ammonia EPA350.1 0.131 mg/L 0.010 0.050 1 09/06/2016 11:24 Nitrogen-Total Kjeldahl EPA 351.2 0.935 mg/L 0.051 0.255 1 09/02/2016 10:09 Nitrate-Nitrite(N) EPA 353.2 0.146 mg/1, 0.002 0.010 1 09/06/2016 11:24 Digestion for Metals SM 3030 D Completed 1 09/13/2016 08:50 Digestion for TKN SM 4500 NorgD Done I 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 09/06/2016 09:35 Hardness-Calculated SM18 2340 B 158 mg/1, l 5 I 09/15/2016 14:35 Residues-Nonfilterable(TSS) SM 18 2540D 2.0 U mg/L 2.0 10 I 08/25/2016 10:40 Orthophosphate(P) SM 18 4500-P E 0.051 mg/1, 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.085 mg/1, 0.004 0.02 1 09/07/2016 14:01 Location: 2-1 UDGEWD PK FlelrliD AT13139 ±" L'ab ID: AF13139 Collect Dale/Tfnle:i 8123/16 09.36 Analyte Name. Method Result Qualifier Units. '. MDL PQL DF.. Analysis Datefl'ime Calcium EPA 200.7(Ca) 47.4 mg/L 0.720 3.60 1 09/15/2016 14:39 Magnesium EPA 200.7(Mg) 4.99 rng/L 0.220 1.10 I 09/15/2016 14:39 Arsenic EPA 200.8(As) 1.79 ug/L 0.I00 0.200 1 09/13/2016 14:54 Copper EPA 200.8(Cu) 14.0 ugh 0.100 0.350 1 09/13/2016 14:54 Zinc EPA 200.8(Zn) 16.6 ug/L 1.00 3.00 1 09/13/2016 14:54 Ammonia EPA 350.1 0.012 1 mg/L 0.010 0.050 I 09/06/2016 11:26 Nitrogen-Total Kjeldahl EPA 351.2 1.38 mg/L 0.051 0.255 I 09/02/2016 10:10 Nitrate-Nitrite(N) EPA 353.2 0.030 ing/L 0.002 0.010 1 09/06/2016 11:26 Digestion for Metals SM 3030 D Completed 1 09/13/2016 08:50 Digestion for TKN SM 4500 NorgD Done I 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 09/06/2016 09:35 Ft,State Laboratory 11):E45-463 EPA Lab Code:FL00919 Page 3 of 15 Agenda Item#6 Report t!0823 gligPIZT of 47 Hardness-Calculated SM I8 2340 B 139 mg/L I 5 I 09/15/2016 14:39 Residues-Nontilterable(TSS) SM I8 254013 4.5 I mg/I. 2.0 10 1 08/25/2016 10:40 Orthophosphate(P) SM I8 4500-P E 0.015 I mg/L 0.004 0.02 I 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.110 mg/L 0.004 0.02 I 09/07/2016 14:01 Location: 2-2:'GEORGE_N Fie/d7D AF13140 , Lab ID: Ar13140 Collect DRteTnle: 8/23/16 10:35 AnelyicNanle Method Result Qualifier.. Units MDL PQL DF Analysis DateiTime Calcium EPA 200.7(Ca) 42.0 mg/L 0.720 3.60 1 09/19/2016 11:39 Magnesium EPA 200.7(Mg) 7.43 mg/L 0.220 1.10 1 09/19/2016 11:39 Arsenic EPA 200.8(As) 1.16 ug/L 0.100 0.200 I 09/16/2016 11:25 Copper EPA 200.8(Cu) 25.0 ug/L 0.100 0.350 1 09/16/2016 11:25 Zinc EPA 200.8(Zn) 41.8 ug/L 1.00 3.00 1 09/16/2016 11:25 Ammonia EPA 350.1 0.119 mg/L 0.010 0.050 1 09/06/2016 11:27 Nitrogen-Total Kjeldahl EPA 351.2 1.80 mg/L 0.051 0.255 1 09/02/2016 10:11 Nitrate-Nitrite(N) EPA 353.2 0.036 mg/L. 0.002 0.010 1 09/06/2016 11:27 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/24/2016 10:20 Hardness-Calculated SM18 2340 B 135 mg/L 1 5 I 09/19/2016 11:39 Residues-Nonlilterable(TSS) SM 18 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM I8 4500-P E(P 0.044 mg/L 0.004 0.02 1 08/26/2016 13:29 Locnlion: 2 3_GEORGE_t Field ID: AF13141 Lab ID: AE1314] Collect DaJeiiie: 8/23/16 08:M Analyte Name': MethodResult. Qualifier• Units. MDL PQI. DF Analysts Date/f'inse Calcium EPA 200.7(Ca) 41.6 mg/L 0.720 3.60 I 09/19/2016 11.43 Magnesium EPA200.7(Mg) 7.07 mg/L 0.220 1.10 1 09/19/2016 11:43 Arsenic EPA200.8(As) 0.919 ug/L 0.100 0.200 1 09/16/2016 11:27 Copper EPA 200.8(Cu) 8.75 ug/L 0.100 0.350 1 09/16/2016 11:27 Zinc EPA 200.8(Zn) 4.41 ug/L 1.00 3.00 1 09/16/2016 11:27 Ammonia EPA350.1 0.058 mg/1. 0.010 0.050 1 09/06/2016 11:29 Nitrogen-Total Kjeldahl EPA 351.2 1,30 mg/L 0.051 0.255 1 09/02/2016 10:31 Nitrate-Nitrite(N) EPA 353.2 0.068 mg/L 0.002 0.010 1 09/06/2016 11:29 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/24/2016 10:20 Hardness-Calculated SM 18 2340 B 133 mg/L 1 5 1 09/19/2016 11:43 Residues-Nonfilterablc(TSS) SM 18 2540 D 2.3 I ntg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM I8 4500-P E 0.007 1 mg/L 0.004 0.02 I 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.098 mg/I. 0.004 0.02 1 08/26/2016 13:29 Location• 2.4_CLUB 4! Fief IDS AF13142 Lab ID: AF13142 Collect Datellinler 8/23/16 09:10 Analyte Name: Method Result Qualifier• gaits MDL PQL DF AnalysisDate/Time. FL state Laboratory ID:E45-164 EPA Lab Code:J<L00919 Page 4 of15 Agenda Item#6 Report I/08231141131V of 47 Calcium EPA 200.7(Ca) 56.7 mg/L 0.720 3.60 I 09/19/2016 11:47 Magnesium EPA 200.7(Mg) 7.26 rng/L 0.220 1.10 1 09/19/2016 11:47 Arsenic EPA 200.8(As) 1.65 ug/L 0.100 0.200 1 09/16/2016 11:29 Copper EPA 200.8(Cu) 34.4 ug/l. 0.100 0.350 I 09/16/2016 11:29 Zinc EPA 200.8(Zn) 4.89 ug/L 1.00 3.00 1 09/16/2016 11:29 Ammonia EPA350.1 0.072 muff. 0,010 0.050 1 09/06/2016 11:30 Nitrogen-Total Kjeldahl EPA35I.2 1.21 meal. 0.051 0.255 1 09/02/2016 10:32 Nitrate-Nitrite(N) EPA 353.2 0.523 mg/1. 0.002 0.010 1 09/06/2016 11:30 Digestion for Metals SM 3030 D Completed l 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/24/2016 10:20 Hardness-Calculated SM 18 2340 B 171 mg/l. 1 5 1 09/19/2016 11.47 Residues-Nonfilterablc(TSS) SM I8 2540 D 2.0 U mg/l. 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.126 mg/1. 0.008 0.04 2 08/24/2016 13:32 Phosphorus-Total SM I8 4500-P E(P 0.245 mg/L 0.004 0.02 1 08/26/2016 13:29 Location: 2=5sLUB_I ! FieldJD:. API3143 L.ab;0) AF13143. Collect D rt me: 8/23/16 - 09:53 Analyte Name Method Result, Qualifier Uriits : MDL PQL . DF- ' Analysis Date/Ti me.. =, Calcium EPA 200.7(Ca) 54.0 mg/L 0.720 3.60 1 09/19/2016 11:51 Magnesium EPA 200.7(Mg) 7.05 mg/L 0.220 1.10 1 09/19/2016 11:51 Arsenic EPA 200.8(As) 1.51 ug/L 0.100 0.200 1 09/16/2016 11:32 Copper EPA 200.8(Cu) 26.2 ug/L 0.100 0.350 1 09/16/2016 11:32 Zinc EPA 200.8(Zn) 12.3 ug/L 1.00 3.00 1 09/16/2016 11:32 Ammonia EPA 350.1 0.048 1 mg/L 0.010 0.050 1 09/06/2016 11:32 Nitrogen-Total Kjeldahl EPA 351.2 1.45 mg/L 0.051 0.255 1 09/02/2016 10:34 Nitrate-Nitrite(N) EPA 353.2 0.027 mg/L 0.002 0.010 1 09/06/2016 11:32 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/24/2016 10:20 Hardness-Calculated SM18 2340 B 164 mg/L 1 5 1 09/19/2016 11:51 Residues-Nonfilterable(TSS) SMI8 2540 D 2.7 1 mg/L 2.0 IO 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.034 mg/. 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.105 mg/1, 0.004 0.02 1 08/26/2016 13:29 Location 2 6_LUGANO Fleld.,TD• AF13144Lab ID:" AP13144; Collect Dateliittre 8/23/1.6 . 09:53 Analyte Name Method Result .Qualifier i'Units MDL PQL DP Analysis DatetTmte + Calcium EPA 200.7(Ca) 48.1 mg/L 0.720 3.60 I 09/19/2016 11:55 Magnesium EPA 200.7(Mg) 6.24 mg/L 0.220 1.10 1 09/19/2016 11:55 Arsenic EPA 200.8(As) 0.881 ug/L 0.100 0.200 I 09/16/2016 11:34 Copper EPA200.8(Cu) 5.69 ug/L 0.100 0.350 I 09/16/2016 11:34 Zinc EPA 200.8(Zn) 3.72 ug/L L00 3.00 I 09/16/2016 11:34 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 11:33 Nitrogen-Total Kjeldahl EPA 351.2 L16 mg/L 0.051 0.255 1 09/02/2016 10:35 FL State Laboratory ID:E4S46.1 EPA Lab Code:FL00919 Page 5 of 15 Agenda Item#6 Report#0823114M0 of 47 Nitrate-Nitrite(N) EPA 353.2 0.007 1 mg/L 0.002 0.010 1 09/06/2016 11:33 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/24/2016 10:20 Hardness-Calculated SM18 234013 146 mg/I 1 5 1 09/19/2016 11:55 Residues-Nonfilterable(TSS) SM I8 2540 D 2.3 I mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM18 4500-P E 0.006 I mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.095 mg/L 0.004 0.02 1 08/26/2016 13:29 Locolloni RO_MA1N SITE FieldlD: AF13145 L'ab ID:'AFi3145 Collect Dnle/Dine: 8/23/16 13:59 . Analyte Name , Method Result Qualiller . 'Ullits MDI, PQL DF '. Aanalysis Dateffinie Calcium EPA 200.7(Ca) 44.1 mg/L 0.720 3.60 1 09/19/2016 11:59 Magnesium EPA 200.7(Mg) 7.18 mg/t.. 0.220 1,10 1 09/19/2016 11:59 Arsenic EPA 200.8(As) 0.442 ug/L 0.100 0.200 1 09/16/2016 11:36 Copper EPA200.8(Cu) 2.29 ug/L 0.100 0.350 1 09/16/2016 11:36 Zinc EPA 200.8(Zn) 34.2 ug/L 1.00 3.00 1 09/16/2016 11:36 Ammonia EPA 350.1 0.127 mg/L 0.010 0.050 1 09/06/2016 11:48 Nitrogen-Total Kjeldahl EPA 351.2 1.38 J mg/L 0.051 0.255 1 09/02/2016 10:27 Nitrate-Nitrite(N) EPA 353.2 4.10 J mg/L 0.012 0.060 6 09/06/2016 12:39 Digestion for Metals SM 3030 D Completed I 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed I 09/16/2016 11:20 Hardness-Calculated SM18 2340 B 140 mg/L 1 5 1 09/19/2016 11:59 Residues-Nonfilterable(TSS) SM18 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM184500-PE 2.45 mg/L 0.100 0.50 25 08/24/2016 13:32 Phosphors-Total SM18 4500-P E(P 2.63 mg/L 0.012 0.06 3 09/20/2016 10:59 Location 3-I LAUREL_OAK Field ID: AF13146 Lab ID AF1314ti; Collect DnleTmet_ 8/23/16 10:33 Analyte Name. Metltad Result Qualifier. i`.Units. .' MDL'!:::1,:!.;PQL DP Analysis Datclfimc Calcium EPA 200.7(Ca) 20.9 mg/L 0.720 3.60 1 09/19/2016 12:32 Magnesium EPA200.7(Mg) 4.53 mg/L 0.220 1.10 1 09/19/2016 12:32 Arsenic EPA 200.8(As) 0.511 ug/L 0.100 0.200 1 09/16/2016 11:53 Copper EPA 200.8(Cu) 69.2 ug/L 0.100 0.350 1 09/16/2016 11:53 Zinc EPA200.8(Zn) 43.7 ug/L 1.00 3.00 1 09/16/2016 11:53 Ammonia EPA350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 11:53 Nitrogen-Total Kjeldahl EPA 351.2 1.07 mg/L 0.051 0.255 1 09/02/2016 10:36 Nitrate-Nitrite(N) EPA 353.2 0.011 mg/L 0.002 0.010 1 09/06/2016 12:44 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM18234013 71 mg/L 1 5 1 09/19/2016 12:32 Residues-Nonfilterable(TSS) SM18 2540D 2.0 U mg/1. 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM18 4500-P E 0.303 mg/L 0.012 0.06 3 08/24/2016 13:32 FI.State Laboratory II):FA5-164 EPA Lab Code:FL00919 Page 6 of 15 Agenda Item#6 Report#082311 ' 4 of 47 Phosphorus-Total SM18 4500-P E(P 0.422 mg/L 0.004 0.02 1 09/01/2016 15:13 Location: 3-6mVALENCLA FieldID• Air4:13147 Lab ID AF13147 CoileciDntellfine 8/23/16 11:06 Analyte Name ; d 111ethod. Result Qualifier Units MDL POI. >bF Analysis Datelflme Calcium EPA 200.7(Ca) 35.2 mg/L 0.720 3.60 1 09/19/2016 12:28 Magnesium EPA 200.7(Mg) 3.80 mg/L 0.220 1.10 1 09/19/2016 12:28 Arsenic EPA 200.8(As) 0.303 J ug/L 0.100 0.200 I 09/16/2016 11:51 Copper EPA 200.8(Cu) 20.2 ug/L 0.100 0.350 I 09/16/2016 11:51 Zinc EPA 200.8(Zn) 32.6 J ug/L 1.00 3.00 1 09/16/2016 11:51 Ammonia EPA 350.1 0.010 U mg/I. 0.010 0.050 I 09/06/2016 11:54 Nitrogen-Total Kjeldahl EPA 351.2 1.03 mg/L 0.051 0.255 1 09/02/2016 10:37 Nitrate-Nitrite(N) EPA 353.2 0.012 mg/L 0.002 0.010 1 09/06/2016 11:54 Digestion for Metals SM 3030 D Completed I 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM 18 2340 B 103 mg/L 1 5 I 09/19/2016 12:28 Residues-Nonfilterable(TSS) SMl8 2540 D 3.4 I mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.125 mg/L 0.004 0.02 1 08/24/2016 '13:32 Phosphorus-Total SM I8 4500-P E(P 0.243 I mg/L 0.004 0.02 1 09/01/2016 15:13 Locailori: 3-S,INTERLOCIIEN Fleld:1D AF13148 L;ab 1D: AF13148: Collect DaleTnte 8/23/16 11,22 Anal to Name Method 'Result:. t ualifier Units MDL 1'a L DF Analsis natefrime Calcium EPA 200.7(Ca) 28.6 mg/L 0.720 3.60 1 09/19/2016 12:36 Magnesium EPA 200.7(Mg) 2.10 mg/L 0.220 1.10 1 09/19/2016 12:36 Arsenic EPA 200.8(As) 9.01 ug/L 0.100 0.200 1 09/16/2016 11:55 Copper EPA 200.8(Cu) 15.5 ug/L 0.100 0.350 1 09/16/2016 11:55 Zinc EPA 200.8(Zn) 11.3 ug/L 1.00 3.00 1 09/16/2016 11:55 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 11:56 Nitrogen-Total Kjeldahl EPA 351.2 0.708 mg/L 0.051 0.255 1 09/02/2016 10:39 Nitrate-Nitrite(N) EPA 353.2 0.014 mg/L 0.002 0.010 I 09/06/2016 11:56 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P. SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SMl8 2340 B 80 mg/L 1 5 1 09/19/2016 12:36 Residues-Nonfilterable(TSS) SMI8 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.043 mg/. 0.004 0.02 I 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.118 mg/L 0.004 0.02 1 09/01/2016 15:13 Location 3.4_PELICANY 9 Field ID• AF13149 LabiD: AF13149 Collect Date/rme 8/23/16 11:02 Analyte Name_ MethodResult . Qualifier Units MDL POI. =. DF Analysis Date/I ime Calcium EPA 200.7(Ca) 43.6 mg/L 0.720 3.60 1 09/19/2016 12:40 Magnesium EPA200.7(Mg) 7.22 mg/I, 0.220 1.10 1 09/19/2016 12:40 Arsenic EPA 200.8(As) 2.36 ug/L 0.100 0.200 1 09/16/2016 11:57 NI,State Laboratory ID:E45464 EPA Lab Code:FL009I9 Page 7 of 15 Agenda Item#6 Report 4 0823 litfrail0823 1'iof 47 Copper EPA 200.8(Cu) 13.1 ug/l, 0.100 0.350 1 09/16/2016 11:57 Zinc EPA 200.8(Zn) 7.50 ug/L 1,00 3.00 1 09/16/2016 11:57 Ammonia EPA 350.1 0.010 U mg/l., 0.010 0.050 I 09/06/2016 11:57 Nitrogen-Total Kjeldahl EPA 351.2 1.48 ntg/L 0.051 0.255 1 09/02/2016 10:40 Nitrate-Nitrite(N) EPA 353.2 0.002 U mg/L 0.002 0.010 1 09/06/2016 11:57 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P 13 Completed 1 08/31/2016 10:23 Hardness-Calculated SM18 234011 139 mgJL 1 5 1 09/19/2016 12:40 Residues-Nonfilterable(TSS) SM18 2540 D 2.6 1 mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.106 mg/L 0.004 0.02 I 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.193 mg/L 0.004 0.02 1 09/01/2016 15:13 Location:.3-8_PELICAN 1 ! Field JO AFI3150 Lab ID AF1131.50;' Collect Dlile2me:` "8/23/16 2 it21 Analyte Nance : Method. Result Qualifier. Units MDY. ....'PQL D1� Analysts I)ate/Tinte. Calcium EPA 200.7(Ca) 48.7 mg/L 0.720 3.60 1 09/19/2016 12:44 Magnesium EPA 200.7(Mg) 10.5 mg/L 0.220 1.10 1 09/19/2016 12:44 Arsenic EPA 200.8(As) 1.58 ug/L 0.100 0.200 1 09/16/2016 12:00 Copper EPA200.8(Cu) 7.33 ug/L 0,100 0.350 1 09/16/2016 12:00 Zinc EPA 200.8(Zn) 19.7 ug/L 1.00 3.00 I 09/16/2016 12:00 Ammonia EPA 350.1 0.016 I mg/L 0.010 0.050 I 09/06/2016 11:59 Nitrogen-Total Kjeldahl EPA 351.2 2.08 mg/L 0.051 0.255 1 09/02/2016 10:41 Nitrate-Nitrite(N) EPA 353.2 0.017 mg/L 0.002 0.010 I 09/06/2016 11:59 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 11ardness-Calculated SM18234013 165 ntg/L I 5 1 09/19/2016 12:44 Residues-Nonfillcrable(TSS) SM18 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.027 mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.136 mg/L 0.004 0.02 1 09/01/2016 15:13 Location 3 9;CLUB 9 Fieldd ID: AF13151 Lab ID: AF13151 Collect Dale rte,: 8/23116 14:21 Analyte.Natrie• -Method Result Qualifier. .Units 114DL PQL DT • Analysis Date/Fitne..:.. Calcium EPA 200.7(Ca) 58.1 mg/I. 0.720 3.60 1 09/19/2016 12,48 Magnesium EPA 200.7(Mg) 7.67 mg/L 0.220 1.10 1 09/19/2016 12:48 Arsenic EPA 200.8(As) 2.69 ug/L 0.100 0.200 1 09/16/2016 12:02 Copper EPA200.8(Cu) 9.20 ug/L 0.100 0.350 1 09/16/2016 12:02 Zinc EPA 200.8(Zn) 22.7 ug/I, 1.00 3.00 1 09/16/2016 12:02 Ammonia EPA350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 12:00 Nitrogen-Total Kjetdahl EPA 351.2 1.54 i mg/L 0.051 0.255 1 09/02/2016 10:56 Nitrate-Nitrite(N) EPA 353.2 0.007 1 mg/L 0.002 0.010 1 09/06/2016 12:00 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 PI,State Laboratory ID;E45464 EPA Lab Code:FL00919 Page 8 of 15 Agenda Item#6 Report if 0823114'M*of 47 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM18 234013 177 mg/L 1 5 1 09/19/2016 12:48 Residues-Nonfilterable(TSS) SM 18 2540 D 4.6 1 mg/L 2,0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-PE 0.098 mg/L. 0.004 0.02 1 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.184 mg/L, 0.004 0.02 I 09/01/2016 15:13 Locathlr. 4 2TBAY 2 F1eld ID: AR13152 f Lab.1D.-AZ~13152, Collect DreteTme: 8/23116 11:34 Aunlyte.Name illeihod . Res.ult Qualifier ':Units• MDL PQL. Dl AnalysisDate%Tinte Calcium EPA 200.7(Ca) 49.3 mg/L 0.720 3.60 1 09/19/2016 13.15 Magnesium EPA 200.7(Mg) 8.55 mg/L 0.220 1.10 1 09/I9/2016 13:15 Arsenic EPA200.8(As) 1.46 ug/L 0,100 0.200 1 09/16/2016 12:17 Copper EPA 200.8(Cu) 20.3 ug/L 0.100 0.350 1 09/16/2016 12:17 Zinc EPA 200,8(Zn) 61.6 ug/L 1.00 3.00 1 09/16/2016 12:17 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 12:02 Nitrogen-Total Kjeldahl EPA 351.2 1.45 mg/L 0.051 0.255 1 09/02/2016 11:00 Nitrate-Nitrite(N) EPA 353.2 0.007 1 mg/L 0.002 0.010 1 09/06/2016 12:02 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion forTKN SM 4500 NorgD Done 1 09101/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM18 2340 B 158 mg/1. 1 5 I 09/19/2016 13:15 Residues-Nonfilterabie(TSS) SM 18 2540D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphors-Total SMI8 4500-PE(P 0.049 mg/L 0.004 0.02 1 09/01/2016 15:13 Local/on 4.4 BAY 4 Field ID AT13153 Lab ID AT13153 •; Collect Dnle/linne 8/23/16 11;52 AnalyteName '..i Method Result . Qualifier -Units i MDL PQL :'1-.)# AnalysisDate/Timc Calcium EPA 200.7(Ca) 30.8 mg1L 0.720 3.60 1 09/19/2016 13:18 Magnesium EPA200.7(Mg) 5.76 mg/L 0.220 1.10 1 09/19/2016 13:18 Arsenic EPA 200.8(As) 1.46 ug/L 0.100 0.200 1 09/16/2016 12:19 Copper EPA 200.8(Cu) 16.9 ug/L 0.100 0.350 1 09/16/2016 12:19 Zinc EPA 200.8(Zn) 11.6 ug/L 1.00 3.00 1 09/16/2016 12:19 Ammonia EPA 350.1 0.144 mg/L 0.010 0.050 1 09/06/2016 12:03 Nitrogen-Total Kjeldahl EPA 351.2 1.26 mg/L 0.051 0.255 1 09/02/2016 11:01 Nitrate-Nitrite(N) EPA 353.2 0.459 mg/L. 0.002 0.010 1 09/06/2016 12:03 Digestion for Metals SM 3030 D Completed I 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM 18 2340 B 101 mg/L 1 5 I 09/19/2016 13:18 Residues-Nonfilterable(TSS) SM182540D 2.0 U mg/L. 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM I8 4500-PE 0.130 mg/L 0.008 0.04 2 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.224 mg/L 0.004 0.02 1 09/01/2016 15:13 FL State Laboratory 10:E45164 EPA Lab Code:Ft.00919 Page 9 of 15 Agenda Item#6 Report fi 08231%4'MM of 47 lrpCRtlptN 4 6 CRESCENT Field 1D: Al 13154 Lnh ID; AF13154 Collet/Di le h;e 8123116 , Z3c35 AnalyteName MethodResult Qualifier ;Units ;i, MDL PQL 1)F . AnalyslsDate%Time Calcium EPA200.7(Ca) 18.5 mg/L 0.720 3.60 I 09/19/2016 13:22 Magnesium EPA200.7(Mg) 3.76 mg/L 0.220 1.10 I 09/19/2016 13:22 Arsenic EPA 200.8(As) 0.129 I ug/L 0.100 0200 1 09/16/2016 12:21 Copper EPA 200.8(Cu) 13.6 ug/L 0.100 0.350 1 09/16/2016 12:21 Zinc EPA 200.8(Zn) 5.40 ug/L 1.00 3.00 1 09/16/2016 12:21 Ammonia EPA350.1 0.010 U mg/L 0.010 0.050 I 09/06/2016 12:05 Nitrogen-Total Kjeldahl EPA 351.2 0.915 mg/L 0.051 0.255 1 09/02/2016 11:02 Nitrate-Nitrite(N) EPA 353.2 0.003 I mg/L 0.002 0.010 1 09/06/2016 12:05 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for'fKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P I3 Completed 1 08/31/2016 10:23 Hardness-Calculated SM18 234013 62 mg/L 1 5 I 09/19/2016 13:22 Residues-Nonfilterable(TSS) SM18 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.059 mg/L 0.004 0.02 1 09/01/2016 15:13 ::;;;:.!4#000-0:0tB,COCO)BAY . Field`ID: AF13155 Lab ID 'AF13155' Collect Date/TFtne: 8/23/16 -12:1)3 AniilyteNarne. Method. . Result Qtualifiel Units MDL PQL <DP Analysts Date/ftnle ' Calcium EPA 200.7(Ca) 46.7 mg/L 0.720 3.60 1 09/19/2016 13:27 Magnesium EPA200.7(Mg) 5.16 mg/L 0.220 1.10 I 09/19/2016 13:27 Arsenic EPA 200.8(As) 1.41 ug/L 0.100 0.200 1 09/16/2016 12:23 Copper EPA 200.8(Cu) 38.0 ug/L 0.100 0.350 1 09/16/2016 12:23 Zinc EPA 200.8(Zn) 6.26 ug/L 1.00 3.00 I 09/16/2016 12:23 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 13:47 Nitrogen-Total Kjeldahl EPA 351.2 0.902 mg/L 0.051 0.255 1 09/02/2016 11:04 Nitrate-Nitrite(N) EPA353.2 0.011 mg/L 0.002 0.010 1 09/06/2016 12:26 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion forTKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM 18 2340 I3 138 mg/L 1 5 1 09/19/2016 13:27 Residues-Nonfilterable(TSS) SM18 2540 D 2.0 U mg/L 2.0 10 I 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.07 mg/L 0.004 0.02 I 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.148 mg/L 0.004 0.02 1 09/01/2016 15:13 Locatfon 41 1 ELICAN 6 field ID: AF13156 ' Ltrb ID:-AF13156; Collect Dale/hrter 8/23/16 12:(16 Anal teName.: Method Result .Qualifier . Units'.i MDL P:•L D1 Aptil.ik ate/I'ime .i Calcium EPA 200.7(Ca) 30.9 mg/L 0.720 3.60 I 09/19/2016 13:31 Magnesium EPA 200.7(Mg) 6.01 mg/L 0.220 1.10 1 09/19/2016 13:31 Arsenic EPA 200.8(As) 0.962 ug/t, 0.100 0.200 1 09/16/2016 12:26 Copper EPA 200.8(Cu) 12.8 ugh 0.100 0.350 1 09/16/2016 12:26 Zinc EPA 200.8(Zn) 4.54 ug/L 1.00 3.00 1 09/16/2016 12:26 FL State Laboratory 11):E45461 EPA Lab Code:FL00919 Page 10 6f 15 Agenda Item#6 Report#0823 ifM of 47 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 I 09/06/2016 13:48 Nitrogen-Total Kjeldahl EPA 351.2 1.16 mg/I, 0.051 0.255 1 09/02/2016 11:05 Nitrate-Nitrite(N) EPA 353.2 0.042 mg/i. 0.002 0.010 I 09/06/2016 12:27 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P 13 Completed I 08/31/2016 I0:23 Hardness-Calculated SMI8 2340 B 102 mg/l. 1 5 l 09/19/2016 13:31 Residues-Nonfiiterable(TSS) SMI8 2540 D 2.0 U mg/L 2.0 10 1 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.004 U mg/I. 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SMI8 4500-P E(P 0.074 mg/L 0.004 0.02 1 09/01/2016 15:13 Location 4 10 PELICAN 3 Field 7D; AT13157 ' Lab ID: .AF13157. collect Dateline . 8/23/16 11:41, Analyte Name Method Result Qualifier Units MDL PQ`[+ `DF Analysis Date/rune :1 Calcium EPA 200.7(Ca) 46.7 mg/I, 0.720 3.60 1 09/19/2016 13:35 Magnesium EPA 200.7(Mg) 8.38 mg/I, 0.220 1.10 I 09/19/2016 13:35 Arsenic EPA 200.8(As) 2.99 ugfL 0.100 0.200 I 09/16/2016 12:28 Copper EPA200.8(Cu) 97.5 ug/1. 0.100 0.350 1 09/16/2016 12:28 Zinc EPA200.8(Zn) 7.60 ug/L 1.00 3.00 1 09/16/2016 12:28 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 13:50 Nitrogen-Total Kjeldahl EPA 351.2 1.52 mg/L 0.051 0.255 1 09/02/2016 11:06 Nitrate-Nitrite(N) EPA 353.2 0.678 mg/L 0.002 0.010 I 09/06/2016 12:29 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SMI8 2340 B 151 mg/L 1 5 1 09/19/2016 13:35 Residues-Nonl lterable(TSS) SM 18 2540 D 2.8 I mg/1, 2.0 10 I 08/25/2016 12:59 Orthophosphate(P) SMI8 45(30-PE 0.146 mg/L 0.008 0.04 2 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.231 mg/L 0.004 0.02 1 09/01/2016 15:13 Location^ 5.1_HAMMOK OAK ;. FielydID: AIr1315$ Lab ID: AF13158:_ collectDnte/lime:. 8/23116 12:40 Analyte Name MethodResult _.Qualifier s Units MDL PQL DF Analysis Date/i'ime. Calcium EPA 200.7(Ca) 18.7 mg/L 0.720 3.60 1 09/19/2016 14:02 Magnesium EPA200.7(Mg) 2.54 mg/L 0.220 1.10 1 09/19/2016 14:02 Arsenic EPA 200.8(As) 0.187 I ug/L 0.100 0.200 1 09/16/2016 12:43 Copper EPA 200.8(Cu) 18.0 ug/L 0.100 0.350 I 09/16/2016 12:43 Zinc EPA 200.8(Zn) 8.03 ug/L 1.00 3.00 1 09/16/2016 12:43 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 13:51 Nitrogen-Total Kjeldahl IPA 351.2 0.587 mg/i. 0.051 0.255 1 09/02/2016 11:07 Nitrate-Nitrite(N) EPA 353.2 0.012 mg/L 0.002 0.010 1 09/06/2016 12:30 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed I 08/31/2016 10:23 Hardness-Calculated SM 18 2340 B 57 mg/L 1 5 1 09/19/2016 14:02 FL State Laboratory ID:F.45464 EPA Lab Code:FL00919 Page 11 of 15 Agenda Item#6 Report#0823 $i of 47 Residues-Nonfiltemble(TSS) SM 18 2540 D 6.0 1 mg/L 2.0 10 I 08/25/2016 12:59 Orthophosphate(P) SM 18 4500-P E 0.011 I mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SMI84500-PE(P 0.106 mg/L 0.004 0.02 1 09/01/2016 15:13 Location: 5 2_L AMBIANCE Field JDA AI!.:I3159 Lob ID:;AF13159 Col/ec1 Dntellinre: 8123/16 14:01 Analyte Name ' Method' Result Qualifier Units MDL PQL DF Analysis DRte/ime Calcium EPA 200.7(Ca) 24.4 mg/l, 0.720 3.60 I 09/19/2016 14:06 Magnesium EPA200.7(Mg) 2.52 mg/I.. 0.220 1.10 1 09/19/2016 14:06 Arsenic EPA200.8(As) 0.146 I ug/L 0.100 0.200 1 09/16/2016 12:45 Copper EPA 200.8(Cu) 28.6 ug/L 0.100 0.350 1 09/16/2016 12:45 Zinc EPA 200.8(Zn) 14.6 ugh, 1.00 3.00 1 09/16/2016 12:45 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 13:53 Nitrogen-Total Kjeldahl EPA 351.2 0.748 mg/l, 0.051 0.255 1 09/02/2016 11:09 Nitrate-Nitrite(N) EPA 353.2 0.006 1 mg/L 0.002 0.010 1 09/06/2016 12:32 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion forTKN SM 4500 NorgD Done 1 09/01/2016 09:44 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM1S 2340 B 71 mg/I. 1 5 I 09/19/2016 14:06 Residues-Nonfiltemble(TSS) SM 18 2540 D 4.9 1 mg/L 2,0 10 1 08/25/2016 12:59 Orthophosphate(P) SMI B 4500-P E 0.073 mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.139 mg/L 0.004 0.02 1 09/01/2016 15:13 Locution. 5-SJIREAKWA fR S Field ID. AF13160 Lab ID:.A1?13160' Collect Daleliinte: 8/23/116 13:30 AnalyteName Metltpll Result Qualifier Units MDL PQLDF A,nalysis.l)ateffime Calcium EPA 200.7(Ca) 25.7 mg/L 0.720 3.60 1 09/19/2016 14:10 Magnesium EPA 200.7(Mg) 2.73 tng/L 0.220 1.10 1 09/19/2016 14:10 Arsenic EPA200.8(As) 1,32 ug/L 0.100 0.200 1 09/16/2016 12:47 Copper EPA200.8(Cu) 23.3 ug/L 0.100 0.350 1 09/16/2016 12:47 Zinc EPA 200.8(Zn) 66.1 ug/L 1.00 3.00 1 09/16/2016 12:47 Ammonia EPA350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 13:54 Nitrogen-Total Kjeldahl EPA 351.2 0.753 mg/L 0.051 0.255 1 09/15/2016 12:27 Nitrate-Nitrite(N) EPA 353.2 0.016 mg/l, 0.002 0.010 1 09/06/2016 12:33 Digestion for Metals SM 3030 D Completed 1 09/152016 08:50 Digestion forTKN SM 4500 NorgD Done 1 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SMI8 2340 B 75 mg/L 1 5 1 09/19/2016 14:10 Residues-Nonfilterable(TSS) SM 18 2540 D 2.0 U mg/L 2.0 10 1 08/29/2016 10:29 Orthophosphate(P) SM 18 4500-P E 0.032 mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.103 mg/L 0.004 0.02 1 09/01/2016 15:13 Location: 5-7_`n COLONY_EN Field ID; AF13161 : Lab ID <AF13161 'Collect•Datefilme 8/23/16 '12:58 Analyte Name:• Method Result Qualifier . Units t MDL PQL .. OF.. Analysis 1)ate/Tiine Calcium EPA 200.7(Ca) 68.8 mg/L 0.720 3.60 1 09/19/2016 14:14 FL State Laboratory ID:E45464 EPA Lab Code:0L00919 Page 12 of 15 Agenda Item#6 Report#082318Mli6 of 47 Magnesium EPA 200.7(Mg) 6.62 mg/L 0.220 1.10 I 09/19/2016 14:14 Arsenic EPA 200.8(As) 0.317 ug/L 0.100 0.200 1 09/16/2016 12:49 Copper EPA 200.8(Cu) 1.78 ug/L 0.100 0.350 1 09/16/2016 12:49 Zinc EPA 200.8(Zn) 12.3 ug/L 1.00 3.00 1 09/16/2016 12:49 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 I 09/06/2016 13:56 Nitrogen-Total Kjeldahl EPA 351.2 1.20 mg/L 0.051 0.255 I 09/15/2016 12:29 Nitrate-Nitrite(N) EPA 353.2 0.003 1 mg/L 0.002 0.010 1 09/06/2016 12:35 Digestion for Metals SM 3030 D Completed I 09/15/2016 08:50 Digestion for'MN SM 4500 NorgD Done I 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM182340B 199 mg/L 1 5 1 09/19/2016 14:14 Residues-Nonfilterable(TSS) SM18 2540D 4.7 I mg/L 2.0 10 1 08/29/2016 10:29 Orthophosphate(P) SM 18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM 18 4500-P E(P 0.076 m g/L 0.004 0.02 1 09/01/2016 15:13 Loi:ntlorr 5 B;aCOLONX WN c .Fleld ID: AF:13162 Lab ID: AF13162' Collect Dalellfine 8/23116 12:40 Analyte Name Method Result Qualifier l;.Jnits :; MDQ. PQL `DF Analysis Date/Tirne Calcium EPA200.7(Ca) 40.7 mg/L 0.720 3.60 1 09/19/2016 14:18 Magnesium EPA200.7(Mg) 4.45 mg/L 0.220 1.10 1 09/19/2016 14:18 Arsenic EPA 200.8(As) 0.606 ug/L 0,100 0.200 1 09/16/2016 12:52 Copper EPA200.8(Cu) 3.99 ug/L 0.100 0.350 1 09/16/2016 12:52 Zinc EPA200.8(Zn) 59.9 ug/L 1.00 3.00 1 09/I6/2016 12:52 Ammonia EPA 350.1 0.010 U mg/1. 0.010 0.050 1 09/06/2016 13:42 Nitrogen-Total Kjeldahl EPA 351.2 1.06 mg/L 0.051 0.255 1 09/15/2016 12:09 Nitrate-Nitrite(N) EPA 353.2 0.002 U mg/L 0.002 0.010 1 09/06/2016 12:21 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done I 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P 13 Completed I 08/31/2016 10:23 Hardness-Calculated SM18 2340 B 120 mg/L I 5 I 09/19/2016 14:18 Residues-Nonfilterable(TSS) SM18 2540 D 2.9 1 mg/L 2.0 10 I 08/29/2016 10:29 Orthophosphate(P) SM 18 4500-P E 0.019 I mg/L 0.004 0.02 I 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.062 mg/L 0.004 0.02 I 09/01/2016 15:13 Local o,:: 5-lp VIZCA)YA 1 ield JD• AF13163 ` Lab JO: AF13163` CollectDote lime 8/23!16 13:15 Analyte Name Method • :Result Qualifier Units M12L PQL DF AnalysisDate/Time Calcium EPA 200.7(Ca) 23.3 mg/L 0.720 3.60 I 09/19/2016 14:23 Magnesium EPA 200.7(Mg) 3.28 mg/L 0.220 1.10 I 09/19/2016 14:23 Arsenic EPA 200.8(As) 0,300 ug/L 0.100 0.200 I 09/16/2016 12:54 Copper EPA 200.8(Cu) 11.4 ug/L 0.100 0.350 1 09/16/2016 12:54 Zinc EPA 200.8(Zn) 19.4 ug/L 1.00 3.00 1 09/16/2016 12:54 Ammonia EPA 350.1 0.011 1 mg/L 0.010 0.050 1 09/06/2016 13:57 Nitrogen-Total Kjeldahl EPA 351.2 0.756 mg/L 0.051 0.255 I 09/15/2016 11:46 Nitrate-Nitrite(N) EPA 353.2 0.042 mg/L 0.002 0.010 1 09/06/2016 12:36 FL State Laboratory ID:E4S.164 EPA Lab Code:FL00919 Page 13 of 15 Agenda Item#6 Report#08231lY of 47 Digestion for Metals SM 3030 D Completed I 09/15/2016 08:50 Digestion forTKN SM 4500 NorgD Done 1 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016 10:23 Hardness-Calculated SM 18 2340 B 72 mg/L 1 5 1 09/19/2016 14:23 Residues-Nonfilterable(TSS) SM 18 2540 D 2.0 U mg/L 2.0 10 I 08/29/2016 10:29 Orthophosphate(P) SM 18 4500-P E 2.40 mg/L 0.080 0.40 20 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.309 mg/L 0.004 0.02 I 09/01/2016 15:13 Location 6-2.11EMINGTON Field JD•'.AF13164 LtrbbID: A.TI3.164 Collect Dafellt»te 8/23/16 ' 13:05 Analyte Name: Method Result° Qualifier .`.Units: i411)L PQL DF.: - Analysis Date/1'tmc Calcium EPA 200.7(Ca) 42.8 mg/L 0.720 3.60 1 09/19/2016 14:50 Magnesium EPA 200.7(Mg) 4.77 mg/I. 0,220 1.10 I 09/19/2016 14:50 Arsenic EPA 200.8(As) 0.499 ug/L 0.100 0.200 1 09/16/2016 13:09 Copper EPA 200.8(Cu) 1.82 ug/L 0.100 0.350 1 09/16/2016 13:09 Zinc EPA 200.8(Zn) 8.18 ug/L 1.00 3.00 I 09/16/2016 13:09 Ammonia EPA350.1 0.132 mg/L 0.010 0.050 I 09/06/2016 13:59 Nitrogen-Total Kjeldahl EPA 351.2 1.09 mg/L 0.051 0.255 1 09/15/2016 12:07 Nitrate-Nitrite(N) EPA 353.2 0.018 mg/1. 0.002 0.010 1 09/06/2016 12:38 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P B Completed 1 08/31/2016. 10:23 Hardness-Calculated SM18 2340 B 127 mg/L. 1 5 I 09/19/2016 14:50 Residues-Nonfilterable(TSS) SM18 2540 D 2.0 U mg/I.. 2.0 10 I 08/29/2016 10:29 Orthophosphate(P) SM I8 4500-P E 0.117 mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphors-Total SM 18 4500-P E(P 0.285 mg/I. 0.004 0.02 1 09/01/2016 15:13 Location: BLANKSfORMWATER Field ID: AT13166 Lnb IA .AF13166 Collect Dafe/T hie 8/23/1b 10:43 AnalyteNanle< .. Method. . Result, Qualifier Units i MDI. PQL DF AnalysisDate/Time Calcium EPA 200.7(Ca) 0.720 U mg/L 0.720 3.60 1 09/19/2016 14:54 Magnesium EPA200.7(Mg) 0.220 U mg/L 0.220 1.10 I 09/19/2016 14:54 Arsenic EPA 200.8(As) 0.100 U ug/1. 0.100 0.200 1 09/16/2016 13:11 Copper EPA 200.8(Cu) 0.182 1 ugh 0.100 0.350 1 09/16/2016 13:11 Zinc EPA200.8(Zn) 1.00 U ug/L 1.00 3.00 1 09/16/2016 13:11 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 14:20 Nitrogen-Total Kjeldahl EPA 351.2 0.051 U mg/L 0.051 0.255 1 09/15/2016 12:05 Nitrate-Nitrite(N) EPA 353.2 0.002 U mg/L 0.002 0.010 1 09/06/2016 13:00 Digestion for Metals SM 3030 D Completed I 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P13 Completed I 09/06/2016 09:35 Hardness-Calculated SM I8 2340 B 1 U mg/L 1 5 I 09/19/2016 14:54 Residues-Nonfiltcrable(TSS) SM 18 2540 D 2.0 11 mg/L 2.0 10 1 08/29/2016 10:29 Orthophosphate(P) SM18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/20I6 13:32 Phosphors-Total SM 18 4500-P E(P 0.004 U mg/L 0.004 0.02 1 09/07/2016 14:01 FL State Laboratory ID:E45464 EPA Lab Code;FLO0919 Page 14 of 15 Agenda Item#6 Report#0823 of 47 Locallpn.; /11LANK STORMWATER Field ID API3167 Lab ID.. AF13167 collect Drr'lellime 8/23/16 08.48 Analyte Na;nie MethodResult Qualifier : ._:Units ' MDI. PQL DF . . Analysts Datcli`,.`tme .. . Calcium EPA 200.7(Ca) 0.720 U mg/L 0.720 3.60 1 09/19/2016 14:58 Magnesium EPA 200.7(Mg) 0.220 U mg/L 0.220 1.10 1 09/19/2016 14:58 Arsenic EPA200.8(As) 0.100 U ug/L 0.100 0,200 1 09/16/2016 13:13 Copper EPA 200.8(Cu) 0.204 1 ug/L 0.100 0.350 1 09/16/2016 13:13 Zinc EPA200.8(Zn) 1.93 1 ug/L 1.00 3.00 1 09/16/2016 13:13 Ammonia EPA 350.1 0.010 U mg/I. 0.010 0.050 1 09/06/2016 14:18 Nitrogen-Total Kjeldahl EPA 351.2 0.051 U mg/L 0.051 0.255 1 09/15/2016 12:04 Nitrate-Nitrite(N) EPA353.2 0.002 U mg/L 0.002 0.010 1 09/06/2016 12:59 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P11 Completed 1 09/06/2016 09:35 Hardness-Calculated SM18 234013 1 U mg/L 1 5 1 09/19/2016 14:58 Residues-Nonfilterable(TSS) SM18 2540 I) 2.0 U mg/1. 2.0 10 1 08/29/2016 10:29 Orthophosphate(P) SM18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.004 U mg/L 0.004 0.02 1 09/07/2016 14:01 Loeatio,s REP_STORMSYATER Field.ID; AFi13168 Lrrb ID. AFI3168 Collect D ite/Ifine• 8/23/16 13 37 Analyte.Name .._ i.Method. Result. Qualtticr Untlts MDL PQI, DF Analysis DatelTsme Calcium EPA 200.7(Ca) 17.8 mg/L 0.720 3.60 1 09/19/2016 15:02 Magnesium EPA 200.7(Mg) 3.63 mg/L 0.220 1.10 I 09/19/2016 15:02 Arsenic EPA 200.8(As) 0.114 1 ug/L 0.100 0.200 1 09/16/2016 13:16 Copper EPA 200.8(Cu) 12.8 ug/L 0.100 0.350 1 09/16/2016 13:16 Zinc EPA 200.8(Zn) 3.77 ugfL 1.00 3.00 1 09/16/2016 13:16 Ammonia EPA 350.1 0.010 U mg/L 0.010 0.050 1 09/06/2016 14:14 Nitrogen-Total Kjeldahl EPA 351.2 1.20 mg/L 0.051 0.255 1 09/15/2016 12:02 Nitrate-Nitrite(N) EPA 353.2 0.002 U mg/L 0.002 0.010 1 09/06/2016 12:54 Digestion for Metals SM 3030 D Completed 1 09/15/2016 08:50 Digestion for TKN SM 4500 NorgD Done 1 09/13/2016 08:57 Persulfate Digestion for Total P SM 4500-P B Completed 1 09/06/2016 09:35 Hardness-Calculated SMI8 234013 59 ntg/L 1 5 1 09/19/2016 15:02 Residues-Nonfitterable(TSS) SM18 2540 D 4.0 I mg/L 2.0 10 1 08/29/2016 10:29 Orthophosphate(P) SM18 4500-P E 0.004 U mg/L 0.004 0.02 1 08/24/2016 13:32 Phosphorus-Total SM18 4500-P E(P 0.053 mg/L 0.004 0.02 1 09/07/2016 14:01 FL State Laboratory II):E45464 EPA Lab Code:FL00919 Page 15 of 15 Agenda Item#6 Page 39 of 47 Appendix D Graphs of the Individual Basins For the Monitoring Period of Record Of the Pelican Bay Stormwater Lakes Agenda Item#6 Page 40 01 47 Total Recoverable Copper In Pelican Bay 500 400 01) -Es 300 0 0. o 200 (4)0 Mi\s/c ,ft o 100 / 01 tit\ U 12 . 0 ) , ) ) (r 71 CV et1 N N M M fel sr, Ch *4' s1- in to in in to 10 s-i t-i ri r 1 71 71 v 1 • 71 71 71 71 o > „A „A 0 0) iV 0 a) a3 0 0) to o a) go n 0 0) 113 Z <L > 14 ZO- <1<o) 1 - 0 -2 0 3 u4 J 5 0 6 Total Nitrogen in Pelican Bay 6.0 5.0 au 4.0 3.0 4*. OD \44r ()\ - 1,4 1/4) 04- u r3 0 0.0 N N M CO CO .4' .4 4 1J1 1r1 1.0 1.0 s. r1 T-4 1-1 ri 71 1 71 r-I v-1 71 71 71 .6 bl) 7 .6 7- Ctr/ > A >s 1;0 o la/ 03 0 0 CU 0 133 03 0 0 03 <0 0 0 al ro IL 24 z u- 24 z u- 24 z u- 24 z u- 2 -1 — --- 0 3 4 ‘4. 5 ,) 6 Total Phosphorus in Pelican Bay 0.6 0.5 0•00.4 0.3 st! (,) '44 — 1/4) /4\ ) oat 0.2 v9/71 \ \ • ) /444.-40-N, 0.1 0.0 71 IN IN IN rq 1Y1 M M <7' to 40 1 c 1 71 71 Ai 1 71 71 7,1 71 71 71 71 71 v-1 7,1 71 o to o (u 0 0 (13 03 0 a) 03 o D z u- 4711. 2 z IL < ZIL2 z u- 2 -AO-1 ---fe-2 3 u4 - 5 -., 6 Agenda Item#6 Page 41 of 47 Total Recoverable Copper in Basin 1 200 l 180 • 160 1 G140 0 120 i I 100P. 80 Ill\ i\ .*? 1 .11 46• 40 1 I sfll \ p . 20 x r �.„em 0 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 1-1 1-2 1-3 1-4 -0--1-5 1-6 Total Nitrogen in Basin 1 5.0 4.5 4.0 3.5 -3.0 C w Jjj t ✓ 25 / ., N1.5 ey,4 / `. r 1.0 it 4 ;a 0.5 0.0 Feb 11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 1-1 1-2 1-3 1-4 ---1-5 „_1-6 Total Phosphorus in Basin 1 0.30 0.25 F0.20 o2 i \ .0.15 r ro 0.10 0.00 Feb 11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-1S Jan-16 Aug-16 Mar-17 1-1 1-2 1-3 1-4 4J_.,1-5 1-6 Agenda Item#6 Page 42 of 47 Total Recoverable Copper in Basin 2 500 Ili it 400 i ' a, 350 I l a. u 300 o 1 .0 250 1 t` wD 200 „ I tr. o u <y } R'\ rc 150 r3 V 1 76 100 \, 50 -4fjt 0 k Vy Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 M"2-1 2-2 2-3 2-4 --0 2-5 • 2-6 Total Nitrogen in Basin 2 8.0 7.0 6,0 J E 5.0 it C 04.0 7.7. 3.0 -\L". 0-, 2.0 ,, '. � f, a i .. 6.`. 0.0 Feb-11 Sep 11 Apr-12 Oct-12 May 13 Nov-13 Jun-14 Dec-14 Jul 15 Jan 16 Aug 16 Mar-17 0- 2-1 2-2 2-3 2-4 - 2-5 2-6 Total Phosphorus in Basin 2 0.30 0.25 1 E 0.20 73 ' \\\\ t /g- s8.0.15 `j \ ' 0.10 il ,-- **,,,!'1.',;/.. -N i 0.os 0� -, 1 , ,�'0,\ - 0.00 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 2-1 ; 2-2 2-3 2-4 2-5 ,.,2.6 Agenda Item#6 Page 43 of 47 Total Recoverable Copper in Basin 3 500 450 ti 4001 3500. ;S °u 300 l 41 250 t/( / N , . a`r 200 X) 150 � " x e- � 4, 74 15. 10 0 }50 � f Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 3-1 - .: 3-2 3-3 3-4 -0-3-5 X2_3.6 -+ll--.,3.7 _ 0--3.8 -O--3.9 Total Nitrogen in Basin 3 10.0 9.0 8.0 7.0 8 E 6.0 co 5.0 z 4.0 3.0 1111 111'\\: 2.0 t 4 f 1.0 F,. s .. a,;:... 0.0 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 3-1 3-2 3-3 3-4 --i-3-5 36 - -3-7 --4---3-8 -O--3-9 Total Phosphorus in Basin 3 0.7 0.6 0.5 3 OA 0 0.3 a .e` 0 0.2 o.o Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 -- _.3.1 _ 41 -3-2 3-3 3-4 -0--3.5 16 -3 7 -3 8 -0-3-9 Agenda Item#6 Page 44 of 47 Total Recoverable Copper In Basin 4 500 450 I l 1 t6 1 lq 400 a 350 I 0 300 r 250 { w: _.(7 ,c4 i 200 10, i 50 .5 a To' 100 0 i ,F ,'r F' S0 \ /w. V\ /41104h/ , \-- ' ' '' \;,, Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 J11l-1S Jan-16 Aug-16 Mar-17 4-1 --<J 4-2 4-3 4-4 —9-4-5 0 4-6 —0-4-7 -x--4-8 --0-4-9 —0-4-10---0—4-11 Total Nitrogen in Basin 4 9.0 8.0 7.0 E 6.0 \- ± - Feb-il la 00.0 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 4-1 ., --4-2 4-3 4-4 - 4-5 •—4-6 --+O---4-7 --9-4-8 —0-4-9 -- -4-10---A---4-11 Total Phosphorus in Basin 4 1.0 0.9 .-,0.8 J E 0.7 2 0.6 VI- '.:2 0.5 N 0.4 a. To 0.3 O ,� ,e rw 0.1 :,, i'llAV-P.."' 1111p„ 4.,...„,,..,---„,-,- _, _e--, ,, , - - -,.4-, -.. ....6.--4.„., .40,,, ...„ ,, ,,,,,t - . ,,,,, 0.0 Feb-11 Sep 11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-1S Jan-16 Aug-16 Mar-17 _ .--4-1 - • 4-2 4-3 4-4 .b_4-5 4 6 --1-4-7 --4-8 --0-4-9 - .:.,-4-10---4a-4.11 Agenda Item#6 Page 45 of 47 Total recoverable Copper in Basin 5 200 180 J 1 i\ 110 • 140 cif \ 1 i P., 120 ' 1 ' //:\\\\ 0 100 t A > 80 r` • 60 TO o 20f 0 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 5-1 5-2 5-3 5.4 — 5-S 5-6 --.--5.7 5.8 --0—5-9 —0---5-10 Total Nitrogen in Basin 5 6.0 5.0 J p4.0 c v 0 3.0 z \, 1/9.\ Ti 2.0 It'• 1 -.--- A„ .„1,r-, ,,,,,,," /,./ \ 1.0 1 ..v.-,07...14„,_:,, Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 * 5-1 5-2 5-3 5-4 —*-5-5 -0---5-6 —4*----5-7 —.--5-8 —0--5-9 —0-5-10 Total Phosphorus In Basin 5 1.6 1.4 a, 1.2 )i N 1.0 < 2 cj -" a 0.8 0 1 _a 0.6 . m \` ,° 0.4I. 5 0.2 /..ft- - - 0.0 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jut-15 Jan 16 Aug-16 Mar-17 * -5-1 a-5-2 5-3 5-4 - 5-5 5-6 --S---5-7 - -5-8 -- ---59 - ,..5 10 Agenda Item#6 Page 46 of 47 Total Recoverable Copper in Basin 6 20 113 11\ "A16 All) 14 O. oc 12 U .fl 1Oi, 1 N Jff7 \ 1f 'o 1 u 6 4 \1 it 15 4 2 `. 0 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 •--6-1 a 6-2 Total Nitrogen in Basin 6 4.0 3.5 J 3.0 1\ E 2.5 a 2.0 Jt. -2 7•\ / .. //7\,0 \ \ Fto. -4\ -r**\./ / */ \ v /* ‘j 0.5 o.o Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 6-1 6-2 Total Phosphorus in Basin 6 0.30 0.25 l , E 0.20 g.0.15 \ �f \ J 0.10 ° -,fie. H ^,..1 "ti\ 0.05 kt 0.00 Feb-11 Sep-11 Apr-12 Oct-12 May-13 Nov-13 Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 6-1 6.2 Agenda Item#6 Page 47 of 47 Total Recoverable Copper in Reclaimed Water 600 600 500 ii 500 ‘.. (1) n, 0. o0 400 kX {4.\\\I 400 ce)- (...) L.) 713 \\f(7 (I '-' 300 w 300 `:() ,2 4) 1.-- . A I.0 200 f.),/ -,.. p 1 200 45 100 W- ' ) '' \,,* ki/0\ 9- ...., 8 100 i --ii. .,---,-4-- .0,1 LI al 0 t....) -,...) i 3 *,..4 0 ,... Cr" 2 v•I CO 1,1 N N CA CA to co ..1.- q .3 s til In LA It) l0 ID 1.0 IA s-4 '-' '1 '1 '4 " '4 '71 'v.' `-.1 "-t4 s-.1 '4 '-11 '-i 'V s-' '4 '-c' 9 .o 9. 8.1) > .0 9 tIA > .0 >- an > 40 >. an > .0 >, an 0 (1) CO :3 0 CU (0 0 C) Cu (0 0 0 OJ CO 0 0 0) Cu 0 Z LI- .,., 4 7 ,L. 2 < z u. 2 < z "- 2 < z_ u.. 2 < w 1 02- u 3 o4 -.„4 5 i 6 -.-RC Total Nitrogen In Reclaimed Water 10.0 10.0..; _ A ,0 E -,:- 8.0 8.0 -t: (C) 1)0 2 e .•'': 6.0 6.0 1...',. To To 4-, 4-• 0 I- m,,Iir 0 v, 4.0 4.0 .... 'k\" a) vi iti ro ) 0---- -4' ' \ 2.0 -2 `III- ..)-I ' * tz: E 0.0 0.0 :3)) 0, re ..., (-I CY CN1 A4 IN IA (A (A (A ct ‘t .14 '1,4 Ill If) IA VI LI, Up la v•-I r',1 74 5-1 g-1 e-'1 IA IA %-i s-I ,--1 r-.1 1-,-1 5-1 r-1 r-,-1 c 1 L 4 c-,-1 1---,1 > .6 >. 1.4) .6 >, en > .6 i• en > l.) on > .0 >. an LI Cu (0 0 0 0) R1 0 0 (I) CO 0 0 cll Cu :3 o CO 10 '3 Z U. 4 7 LI- 24zu. 24zu. 2 < 2: u- 2a 0 1 - 0 -2 - 3 -0-4 u 5 ,-.,, 6 -0-RC Total Phosphorus in Reclaimed Water 2.0 [ 3.0 ..,_ -_-7 -.' •-__ 0) ,, 2.5 -i,, 1.5 -f-3 ..,,, 2.0 0. r Ti 1.0 1.5 " t; I- ,,, i lict 1.0 ',,, (0 s...., W05. -: 2 (.> la Z._ !! ) u• 3 tj la 0 ,) ) ,) ) , 'Ir V 0•5- _50 4„0„/v,„.14.,,,„ 1,4 ' . l'i v '''' 2 0.0 v) .-; N CV N PO (c) (0 m co .,4• ..t .4 .4- in tn IA 113 k„I:1 ,0).4 .4,1 ri r-1 w--1 r-i r-4 *-1 I-1 71 t-4 t--1 T,;1 71 71 71 ril 7c''s 1 , , , 0 0 pa 0 o 0) a3 :3 0 0) IC) 0 0 a) Co D 0 az1,1), CC)›. .7-,(' .7::: I-1- azu- 2u- 2 .< zu. az 2- -0-1 - 0 -2 ,..) 3 --V 4 k„4. 5 t) 6 -0-RC Agenda Item#7 Page 1 of 7 LAKE SEDIMENT DATA must 2013/April 2016/September 2016 Lake Depth (ft.)* Silt (in.)* 1-2 6.5/6.5/6.5 15/12/12 (13%) 1-6 10/11.5/11.5 10/3/3 (2%) 2-9 -/12/12 -/36/36 (20%) 2-12 - /6/6 -/12/12 (14%) 3-1 11.5/12/12 14/3/3 (2%) 3-3 11.5/11.5/12.5 5/5/5 (3%) 4-1 13/14/14 5/2.5/3 (2%) 4-11 8/9/9 9/3/3 (3%) 5-3 13/14/14 15/2/2 (1%) 5-12 11/11.5/11 4/3/3 (2%) *Mid-lake samples Agenda Item#7 Page 2 of 7 LAKE SEDIMENT DATA April 2016/September 2016* Lake Water Copper (ug/L) Sediment Copper (mg/kg.) Sediment TP (mg/kg.) 1-2 100/11 84/248 561/771 1-6 36/15 13,795/9226 55/1086 2-9 20/11 10,056/19,187 57/2332 2-12 83/17 13,482/16,494 801/6765 3-1 37/3.6 11,092/9892 106/1753 3-3 43/14 16,784/5905 30/97 4-1 36/11 15,619/8447 82/3886 4-11 211/70 15,108/577 38/118 5-3 52/16 14,855/4665 617/1624 5-12 4/5 320,404/2906 6424/2290 ' Mid-lake samples Ago— Agenda Item#7 Page 3 of 7 DISPOSITION OF LAKE COPPER* • 0.10 mg. 0.13 mg. 1 f 4f 2306 mg. '/ j f I� 157,561 mg. // Lake 1-6 Lake 2-9 Crayton Road St. Maarten Over 99.99% Over 99.99% in sediment in sediment 0.02 mg. 0.15 mg. ! f! 2480 mg. M1 /j// 2112 mg. /f ! Lake 3-3 Lake 4-1 St. Andrews Oakmont Over 99.99% Over 99.99% in sediment in sediment *Milligrams of copper in water/sediment column Agenda Item#7 Page 4 of 7 DISPOSITION OF LAKE PHOSPHORUS* I i 2.8 mg. 0.8 mg 1 272 mg. 1\\1 6765 mg. Lake 1-6 Lake 2-12 Crayton Road Golf Course 99.0% in sediment 99.98% in sediment 7.2 mg. 2.2 mg. r l,! 118 mg. �\ 11.Z 2290 mg.!\\ Lake 4-11 Lake 5-12 Golf Course Bay Colony Shores 94% in sediment 99.91% in sediment *Milligrams of total phosphorus in water/sediment column Agenda Item#7 Page 5 of 7 CONCLUSIONS ... • Nearly all lake copper (over 99.99%) is in the sediment. • The remaining soluble copper(from equilibrium with copper bound in the sediment) is not causing problems in Clam Bay, where soluble copper levels remain low. • High levels of phosphorus (94 to over 99%) are also bound in the sediment. This along with steady levels of soluble phosphorus in the lakes suggests equilibrium has been established, fueling algae build even without ongoing fertilizer runoff. • Sediment levels in most lakes tested remain very low (1-3%). Exceptions are lakes 2-9 (20%), 2-12 (14%) and 1-2 (13%), but even there it appears dredging won't be needed for decades. Bacteria, now being tested in lake 2-9, may reduce sediment levels. Agenda Item#7 Page 6 of 7 PELICAN BAY STORMWATER(AXES WATER QUALITY MON[TORWG PROGRAM:AUGUST 2016 SAMPLING EVENT DATA REVIEW Nutrients have shown slight improvements since November 2013.However,these lakes continue to experience nutr ent concentrations afhypereutrophic leveis. wile somebasins b-asir6W—sliglitlievels since the last quarter,the improvements are not statistically significant.Basin 3 continues to be the most affected basin for both nitrogen and phosphorus. Total recoverable copper remains significantly lower than historical concentrations since August 2013 when copper sulfate use for algae control ceased.Only 1 station out of 29 hada higher copper concentration in August 2016 compared to the preceding quarter.Copper concentrations appears to decrease slightly during increased rainfall,suggesting a dilution or flushing effect from the lakes during periods of higher rain and runoff.However,copper concentrations appear to have reached an equilibrium with sediment cycling. Copper concentrations in future quarters are expected to fluctuate seasonally but remain similar if no further action is taken. • Despite the overall decline,copper concentrations continue to be above the typical range of surface waters and significantly above the Florida Class III water body standard.While state water quality criteria are not directly applicable to the stormwater lakes,the FDEP has expressed concern that stormwater discharges to Clam Bay may be having an effect on estuarine water quality for copper.Additional water quality monitoring will support conclusions on long-term trends in copper and the contributions to Clam Bay. Implementation of treatment systems in strategic locations within the stormwater lake system continues to warrant consideration, primarily to address nutrients and algae blooms in the stormwater lakes.Treatment and removal of nutrients will likely show a similar benefit to copper with an expected concomitant decrease. The long-term data suggest that both phosphorus and copper are cycling from the sediments and have reached an equilibrium that leads to high lake background concentrations that are no longer associated with the loads to the lakes.Controlling phosphorus cycling will lead to significant lake aesthetic improvements.' One approach to control sediment cycling is"geochemical augmentation",which consists of ultra-low dosing of alum to enhance the natural geochemical process of sediment sequestration.Alum is a common chemical used for phosphorus and metals removal in drinking water operations via flocculation.However,the ultra- low dose approach would be at small concentrations below floc forming concentrations so there would be no accumulation of solids.With this method,lakes would be dosed once to several times per year.Existing aerators could be used to mix and disperse the small dose of liquid alum.A simple approach would be to strap a dosing hose onto the diffusers in the middle of the bubble stream and meter the liquid alum in gradually.This could readily be tested at Pelican Bay.Evaluation of the efficacy would involve normal water quality sampling and observation of water clarity. If the test of this approach proves to be successful,a practical implementation approach could consist of using a mobile dosing trailer to dose all of the lakes once or twice per year.This would avoid the cost and aesthetic concern of permanent infrastructure. A pilot study of treatment systems could offer an effective solution to regulatory concerns in Clam Bay and improve algae/scum water quality concerns within the Pelican Bay Community. • 15 Agenda Item#7 Page 7 of 7 WHAT'S HAPPENING IN SARASOTA COUNTY ... Telephone Conversation with Bill Morris (10/17/16) This is a follow-up to a previous phone conservation (12/2/14)with Bill Morris, who heads a group responsible for water management in Pelican Pointe, a 21-year-old community of 1,388 units just north of Venice, FL. Pelican Pointe has 67 retention ponds in three basins, the runoff from which goes into Hatchet Creek. 55 of the lakes catch runoff from well water, which is used for general irrigation. 12 of the lakes catch runoff from recycled water, which is used to irrigate the adjacent golf course. Algae Control —Aeration, littoral plantings and chemical touchup (chelated copper) were found to control most of the algae growth. Dyes are used in some lakes to reduce sunlight penetration, further slowing algae growth. Sarasota County requires littoral plantings in all lakes. Best were said to be Pickerelweed,Arrowhead and Spikerush placed in like groupings of 10-25 plants. Recycled Water The 12 lakes irrigated by recycled water(loaded with nutrients) had far more algae than the 55 lakes irrigated by well water —a night and day difference! Fertilizer—Pelican Pointe allows no use of phosphate-containing fertilizers! Blue Tilipia --Pelican Pointe consultants and county environmental engineers strongly recommend against using Blue tilapia. The fish were put in all 67 of their ponds and are now being removed. They were said to have no long-term effect against algae and were found to be a nuisance because they ate shoots from the littoral plants. The fish also propagated like crazy. Shoreline Erosion —A 3-foot buffer of hand-cut 8-12-inch grass is being maintained on the shoreline of all lakes. This was said to reduce shoreline erosion and also keep mower-based grass cuttings out of the lakes. Morris invited the PBSD to visit, view their lakes and review their activities. Dave Trecker (10/17/16) Agenda Item#9 Page 1 of 1 PELICAN BAY LAKE TREATMENTS FOR ALGAE & DUCKWEED 1. Aerators 2. Littoral plantings 3. Blue Tilapia 4. Bacteria 5. Hydrothol 6. Tribune 7. Green Clean 8. Schooner 9. Rodeo (primarily glyphosate) wd:Herbicide Info Subject: Fwd:Herbicide Info From: JacobLisa<LisaJacob@colliergov.net> Date: 11/17/2016 8:12 AM To: SheaBarbara<BarbaraShea@colliergov.net>, Tom Cravens<nfn16799@naples.net> CC: Jeremy Sterk<j.sterk@etenviron.com>, Tim Hall<Tim@thanaples.com> Here is an opinion from the owner of Earth Tech (who has been a licensed pesticide applicator for 20 years) re: chemicals hydrothol, Tribune, and Rodeo impact on mangrove die-off and recommends testing soil for certain criteria in both the affected area and in area where mangroves are healthy to make a comparison. Sent from my iPhone Begin forwarded message: From: Jeremy Sterk <1 .sterk@etenviron.com<mailto:j .sterk@etenviron.com>> Date: November 16, 2016 at 20:20:08 EST To: JacobLisa <LisaJacob@colliergov.net<mailto:LisaJacob@colliergov.net>> Subject: FW: Herbicide Info Lisa, I asked Donn Brown, the president of our company to weigh in on the herbicide question. He has been a licensed herbicide applicator for almost 20 years. See his response below. Jeremy From: Don Brown <d.brown@etenviron.com<mailto:d.brown@etenviron.com>> Date: Wednesday, November 16, 2016 at 3:33 PM To: Jeremy Sterk <1 .sterk@etenviron.com<mailto:j .sterk@etenviron.com>> Subject: Herbicide Info Jeremy Hydrothol 191, Tribune and Rodeo are all aquatically approved herbicides typically used to control submersed and floating plants, algae and aquatic herbaceous species. The half-life of all these herbicides is around 1-5 days, which means it dissipates through microbial degradation. It is probably very unlikely that any herbicide residuals would move beyond the lakes to the estuarine system. In addition, it would be highly unlikely that you will find residual herbicides in a water test. A soil test may be what is needed to see if there is any type of accumulation of excess nutrients, heavy metals or herbicides in the estuarine system. Maybe comparing DO, pH, salinity, copper, N and P in soil samples from a thriving location and the die-off location would give you some indication of what is going on? In conclusion, I would find it highly unlikely that the aquatic weed control in the lakes would be linked to the die-off in Clam Pass (unless they are actually spraying the mangroves directly with high concentrations of these herbicides) . You would have a better chance of finding copper accumulation trapped in the sediments compared to linking Hydrothol 191, Tribune and Rodeo to the mangrove die-off. I hope this helps? Thanks, Donn Brown President / Owner Earth Tech Environmental LLC of 2 11/17/2016 12:32 PM 'wd:Herbicide Into 1455 Rail Head Boulevard Suite 8 Naples, FL 34110 Office: (239) 304-0030 Fax: (239) 324-0054 Mobile: (239) 438-1389 www.etenviron.com<http://www.etenviron.com/> P Help save trees and paper, only print if needed. 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Checked by AVG - www.avg.com Version: 2016.0.7859 / Virus Database: 4664/13427 - Release Date: 11/17/16 of2 11/17/2016 12:32 PM EXHIBIT"A" Estimated Project Budget Pelican Bay Services Division Master System Lake Erosion Analysis November 18,2016 SCOPE OF SERVICES The purpose of this work is to develop a lake remediation plan for the 47 lakes in Pelican Bay. The report and proposed work plan will utilize the most cost effective methods. Services may include, but are not limited to the following: 1. Onsite visit for 47 of the PBSD master system lakes. Onsite visits shall involve pictures and brief description of each lake with accompanying data sheet analysis/inspection report. The location of historic water fluctuation marks on control structures and lake banks will aide in determining critical erosion repair elevations. $17,400 T/M 2. Create PBSD Lake Analysis excel model to develop a sound analysis method in order to determine the most logical order of future lake remediation among the 47 lakes and also determine the order in which lakes require remediation. ABB will submit draft findings to staff for feedback prior to the completion of the final report. $5,200 T/M 3. Report summarizing findings for each lake and describing methodology used to determine future plan for lake remediation. Develop a set of distinct priorities based on specific conditions taking into account cost savings wherever possible. Categorize future remediation by risk assessment and repair feasibility. $14,600 T/M TOTAL $37,200 T/M T/M=Time and Materials. Billings will be based on actual time and materials expended in accordance with our rate schedule. Budgets given are an approximate amount and will not exceed without prior authorization. Billings will be made on a percent of budget basis. Building Permit Not Included NOTE: All review fees paid to agencies to be supplied by client. These services not included are Mechanical Engineering,Landscape Architect,and Soil/Structure Engineer. Page 5 of 6 K:\2015\15-0022-Pelican Bay GIS Mapping\Correspondences\Proposal\Lake Erosion Analysis.docx