The URL can be used to link to this page

Item M07M C ounty of f Monroe ELj » °o � BOARD OF COUNTY COMMISSIONERS /� r i � �� Mayor George Neugent, District 2 The Florida. Ke Se y I Mayor Pro Tern David Rice, District 4 Danny L. Kolhage, District I Heather Carruthers, District 3 Sylvia J. Murphy, District 5 County Commission Meeting October 18, 2017 Agenda Item Number: M.7 Agenda Item Summary #3341 BULK ITEM: Yes DEPARTMENT: Sustainability TIME APPROXIMATE: STAFF CONTACT: Rhonda Haag (305) 453 -8774 11:00 a.m. AGENDA ITEM WORDING: Discussion and direction of findings from Phase IIIA of the Canal Management Master Plan (CMMP), including the "2017 List of Canals Not Meeting the FDEP Criteria for Dissolved Oxygen ", provided by AMEC Foster Wheeler Environment and Infrastructure, Inc. for services funded by EPA grant X7- 001340915. ITEM BACKGROUND: The County was awarded an EPA grant to fund Phase IIIA of the Canal Management Master Plan (CMMP). AMEC was identified in the grant application to perform the work. The Water Quality Protection Program (WQPP) Action Plan of the Florida Keys National Marine Sanctuary (FKNMS) identifies impaired water quality in residential canals as a priority for corrective action (FDEP, 2013). The following tasks were included in the grant to address the identified data gaps: 1) Collection of expanded Dissolved Oxygen (DO) data for all Fair and Poor ranked canals. 2) Collection of sediment cores from a subset of canals that have documented organic detritus bottom sediment loading greater than 0.75 feet in thickness to evaluate the potential for reusing canal sediments in their planning and cost evaluation. The outputs for the work include: 1) Confirmation of the canal rankings for poor and fair ranked canals and verification that the rankings would not be altered using the new FDEP standard for Dissolved Oxygen. 2) Assist in determining the cost of removing decaying organic matter from all the canals which could potentially benefit from the restoration effort. PREVIOUS RELEVANT BOCC ACTION: 06/15/16: Approval of EPA Grant Application to fund Phase IIIA of the Canal Management Master Plan to be completed by Amec. 10/19/16: Approval of Amendment No. 12 to the Contract for Engineering, Design and Permitting Services of the Demonstration Projects, with AMEC Foster Wheeler Environment and Infrastructure, Inc. to provide administrative and planning services related to completing Phase IIIA of the Canal Management Master Plan in an amount not to exceed $170,921.75, of which $110,582.30 is funded by EPA grant funds. CONTRACT /AGREEMENT CHANGES: N/A STAFF RECOMMENDATION: DOCUMENTATION: Task 1 EPA Grant Water Quality Monitoring Tech Report FINANCIAL IMPACT: Effective Date: N/A Expiration Date: N/A Total Dollar Value of Contract: N/A Total Cost to County: N/A Current Year Portion: N/A Budgeted: N/A Source of Funds: N/A CPI: N/A Indirect Costs: N/A Estimated Ongoing Costs Not Included in above dollar amounts: Not Applicable Revenue Producing: No If yes, amount: Grant: No — but related to the EPA Grant for this work. County Match: N/A Insurance Required: N/A Additional Details: 09/21/16 304 -23000 - PHYSICAL ENVIRONMENT I to] XTAi Do 1111" $0.00 Rhonda Haag Completed 09/01/2017 3:17 PM Pedro Mercado Completed 09/01/2017 3:26 PM Budget and Finance Completed 09/01/2017 3:28 PM Maria Slavik Completed 09/03/2017 3:11 PM Kathy Peters Completed 09/05/2017 9:44 AM Board of County Commissioners Completed 09/20/2017 9:00 AM M.7.a TECHNICAL MEMORANDUM (DRAFT) TO SUMMARIZE THE FLORIDA KEYS CANAL WATER QUALITY MONITORING EFFORT FUNDED BY EPA GRANT X7- OOD40915 AND MONROE COUNTY MONROE COUNTY, FLORIDA KEYS PREPARED FOR: MONROE COUNTY SUSTAINABILITY DEPARTMENT 102050 OVERSEAS HIGHWAY, STE. 246 KEY LARGO FL 33037 amec foster wheeler PREPARED BY: AMEC FOSTER WHEELER ENVIRONMENT & INFRASTRUCTURE, INC. September 2017 �a. �a r c m r a Packet Pg. 2035 amec� foster wheeler 5845 NW 158 Street Miami Lakes, Florida 33014 (305) 826 -5588 Date: September 13, 2017 To: Ms. Rhonda Haag, Monroe County From: Stephen Hanks, PE Reviewed by: Greg Corning, PE, Ricardo F Memorandum (DRAFT) is, PE Subject: Summary of Findings 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 1.0 EXECUTIVE SUMMARY The prioritization of canal restoration projects in Monroe County was developed through two phases of a Canal Management Master Plan (CMMP) using water quality monitoring data that was collected in 2013. Since the development of the canal water quality rankings, the Dissolved Oxygen (DO) criteria has been modified, and the collection of additional comprehensive water quality monitoring data has not been completed. Therefore, Amec Foster Wheeler Environment & Infrastructure, Inc. on behalf of Monroe County completed water quality' monitoring under Task 1 of EPA Grant X7- OOD40915 -2 to assess the current canal water quality in Monroe County with respect to the current DO criteria.` The following is a summary of the implications of the 2017 water quality monitoring activities: • Applying the current FDEP DO criteria to the monitoring data collected in 2013 reduces the number of non - compliant fair and poor canals from 233 to 116. • Grab samples collected from 302 canals between February 2017 and April 2017 identified 36 potentially non - compliant canals based on the time of day corrected average of DO saturation in the entire water column. • 10 canals were selected for diel monitoring, pursuant to FDEP guidance that indicates diel measurements are preferred over grab samples. Diel monitoring was completed in May 2017, and identified an additional 4 non - compliant canals. • The poor correlation between grab samples and diel monitoring data indicates that that time of day corrected DO saturation measured by grab sample may be insufficient to characterize the predominant dissolved oxygen saturation in a water body, and that more robust monitoring such as composite sampling to determine monthly average DO saturation may be necessary to adequately characterize and prioritize canals for water quality restoration. a� Amec Foster Wheeler Environment & Infrastructure, Inc. 5845 N.W. 158th Street Miami, Florida 33014 Summary of Findings September 13, 2017 2017 EPA Grant Task 1 WQ Monitoring Project Number. 6783 -16 -2899 Amec Foster Wheeler Environment & Infrastructure, Inc. 2.0 INTRODUCTION & BACKGROUND In 1994, the Water Quality Protection Program (WQPP) Steering Committee was established to make recommendations to maintain the water quality needed for healthy natural resources surrounding the Florida Keys. The Canal Restoration Advisory Subcommittee (Subcommittee) was created in 2012 to provide scientific and objective oversight of the Canal Restoration Program including the development of the Canal Management Master Plan (CMMP). The Subcommittee members consist of representatives from the following agencies: • Federal: EPA, NOAA • State: DEP, FFWCC • County: Monroe County • Cities: Islamorada, Key of Colony Beach, Layton, Marathon, Key West • Other: Florida Keys Environmental Fund The Subcommittee meets regularly to review the progress of the program and to recommend the appropriate actions necessary to facilitate implementation of various project tasks. Phase I of the CMMP developed a set of project goals and objectives that were initially approved by the Subcommittee in 2012. These goals and objectives were reviewed by the Subcommittee again as part the 2013 Phase 2 CMMP and were approved without change. The objectives that were identified and adopted by the Subcommittee are as follows: • Water Quality — Address Eutrophication and DO- Related Issues • Water Quality — Address Organic Material (e.g., Weed Wrack) Related Issues • Improve Sediment Quality • Improve Habitat Quality • Generate Public involvement in the canal management process Phase II CMMP Water Quality Monitoring: Water quality monitoring was completed following approved FDEP methodology in spring and early summer of 2013 to support water quality ranking for the Phase 11 CMMP. During the water quality monitoring activities, biological indicators such as turbidity, algae, sponges, seagrasses, and reef fish were recorded for each surveyed canals to facilitate ranking of water quality. The water quality summary for the surveyed canals were evaluated based on biological indicators and comparison to the dissolved oxygen (DO) standard as identified in the 2012 edition of 62- 302.530, FAC, for Class III Marine Waters. The 2012 standard stated that DO shall never be measured at less than 4.0 mg /L at any point or at any time. Furthermore, the FDEP has stated that any Class I I I water body which displays DO levels less than 4.0 mg /L should be considered non - compliant. The Phase II CMMP canal assessments measured DO at various depth intervals throughout the canal's water column with the use of a calibrated YSI. The measurements were obtained in a representative sample location within the canal based on access and a� Summary of Findings September 13, 2017 2017 EPA Grant Task 1 WQ Monitoring Project Number. 6783 -16 -2899 Amec Foster Wheeler Environment & Infrastructure, Inc. configuration (Attachment #1 - Figures, Figure 1). Analysis of the DO measurements was completed by taking the lowest measured reading observed at each canal, and comparing it to the 4 mg /L criteria; since the criteria was applicable to the entire waterbody. The DO conditions in conjunction with biological indicators were used to summarize the water quality of each canal as follows: DO Conditions Biological Conditions Water Quality Summar > 4.0 m /L Positive Good > 4.0 m /L Negative Fair 3.0 - 4.0 m /L Positive Fair 3.0 - 4.0 m /L Negative Poor < 3.0 m /L N/A Poor The Phase II CMMP identified approximately 180 fair water quality canals and 130 poor water quality canals within Monroe County. Of the 310 fair and poor canals, 233 exhibited DO concentrations below the 2012 FDEP standard. There were 77 canals that exhibited DO concentrations in compliance with the 2012 FDEP standard, but were ranked fair due to negative biological indicators. 3.0 SUMMARY OF THE CURRENT DISSOLVED OXYGEN STANDARD In 2013, the FDEP water quality criteria for DO was modified from the 4 mg /L (at any location at any time) threshold to percent saturation as follows: 1. The percent DO saturation measured over a 24 -hour period (with a sample frequency of at least once per hour) shall not be below 42 percent saturation in more than 10 percent of the values (ie at least 90 percent of the 24 DO saturation measurements must be above 42 percent); 2. The weekly average DO percent saturation shall not be below 51 percent; and 3. The monthly average DO percent saturation shall not be below 56 percent. Both the weekly and monthly average DO percent saturation values are calculated using either 3 full days of diel measurements or ten evenly distributed grab samples collected throughout the averaging period. Since the collection of diel measurements or multiple grab sample events is not always feasible, the March 2013 FDEP Technical Support Document: Derivation of Dissolved Oxygen Criteria to Protect Aquatic Life in Florida's Fresh and Marine Waters indicates that a one -time grab sample can be converted to a daily average using a Time of Day correction. However, the Technical Support Document indicates that a set of diel measurements is preferred over a Time of Day corrected grab sample. The Technical Support Document provides an equation to complete a Time of Day correction for a grab sample collected in freshwater, but is ambiguous as to how to complete a Time of Day correction for a marine sample. However, as indicated on page 64 of the Technical Support Document "Due to the natural diel DO fluctuations, if the instantaneous measurements are used to compare to the criteria developed using the daily average percent DO saturation, the time of day for the instantaneous DO measurements could be an important consideration ", and it is indicated on page 65 that Summary of Findings September 13, 2017 2017 EPA Grant Task 1 WQ Monitoring Project Number. 6783 -16 -2899 Amec Foster Wheeler Environment & Infrastructure, Inc. the FDEP is planning to develop a time of day correction for marine waters based on future sampling events. Therefore, it is Amec Foster Wheeler's interpretation that correcting an observed value to match the expected value for eight o'clock in the morning (when the lower 90 percentile value is typically observed) using diel data collected from representative water bodies is in agreement with the Time of Day correction intended in the Technical Support Document. The Technical Support Document provides recommendations for sampling depth for fresh waterbodies, but does not provide recommendations for sampling depths for marine waterbodies. However, 62- 303.320(6)(b) indicates that the samples collected from multiple depths should be averaged. The following summarizes the applicable criteria and sampling methodology for the 2013 and 2017 water quality monitoring events: Sampling Event FDEP DO Criteria Sampling Location DO analysis 2013 Greater than 4 mg /L at any At a One time grab sample location at any time representative along a vertical profile. If location within any interval did not meet the canal the DO criteria the canal based on was considered out of accessibility. compliance 1. The daily average DO 2017 concentration shall not be At center of the 1. One time grab sample below 42 percent saturation canal halfway along a vertical profile. in more than 10 percent of between the The readings were the values; mouth and the averaged and corrected back of canal. for Time of Day. If the 2. The weekly average DO average was below 42 percent saturation shall not percent, the canal was be below 51 percent; and recorded as being out of compliance. 3. The monthly average DO percent saturation shall not 2. Diel readings collected be below 56 percent. at two feet below the surface every 10 minutes for 24 hours. If more than 10% of the readings were below 42 percent, the canal was considered out of compliance. a� Summary of Findings September 13, 2017 2017 EPA Grant Task 1 WQ Monitoring Project Number. 6783 -16 -2899 Amec Foster Wheeler Environment & Infrastructure, Inc. 4.0 EVALUATION OF 2013 WATER QUALITY DATA USING THE CURRENT STANDARD Even though the 2012 DO standard was applied to the entire vertical profile, and the 2013 DO standard is applied to an average of the vertical profile; the time of day corrected DO saturation in the upper six feet of the water column was calculated for the 2013 water quality dataset in order to provide an equal basis of comparison to the 2017 water quality monitoring data. Ideally, values collected over the entire vertical profile would have been averaged for comparison to the 2017 water quality monitoring data, but given the sampling methodology implemented in 2013 (i.e. sampling from the canal headwall) readings greater than 10 feet were not collected. Please note that the Time of Day correction was completed using the 2017 diel measurements as described in Section 4. A summary of the 2013 water quality data that was evaluated pursuant to the current DO standard is provided in (Attachment #2 — Tables, Table 1). Please note, only fair and poor canals that were resurveyed in 2017 are provided in (Attachment #2 — Tables, Table 1). Of the 233 fair and poor canals that exhibited DO concentrations below the previous standard, only 116 were below the current standard; which represents a 50 percent reduction in non - compliant canals as a result of the change in the DO standard. A comparison of the 2013 and 2017 water quality data is further described in Section 5. 5.0 WATER QUALITY MONITORING ACTIVITIES The Phase IIIA CMMP canal assessments measured DO at various depth intervals throughout the water column of 302 canals with the use of a calibrated YSI. The YSI meter was used to measure temperature, DO, pH, and conductivity. The canal assessments were conducted between February 20, 2017 and April 28, 2017. Please note that approximately 8 canals could not be accessed due to homeowner reluctance or inaccessibility. The standard depth intervals for data collection were the upper two feet, five feet below the water surface, and every five feet thereafter until one foot above the canal bottom. The measurements were obtained in the center of the canal halfway between the mouth and back of the canal, as required by FDEP methodology, with two sample locations completed at 21 large canals. The typical layout of canal sample locations is provided in (Attachment #1 - Figures, Figure 1). Additionally, 24 hour diel measurements were collected from 10 canals between May 24, 2017 and May 26, 2017. The ten canals selected for diel monitoring were chosen to provide a representative dataset based on the range of values observed for the grab samples. The canals selected for diel monitoring are listed in (Attachment #2 — Tables, c� Table 2). The diel monitoring was completed by suspending a data collection sonde < approximately two feet below the surface using a floating buoy that was tethered to the Lu canal headwall. A photo of the diel monitoring configuration is provided on page 6. a� M.7.a September 13, 2017 Project Number. 6783 -16 -2899 Source: Diel monitoring equipment setup at Canal 25 Key Largo 6.0 WATER QUALITY MONITORING RESULTS The 2017 water quality grab sample monitoring results are summarized in (Attachment #2 — Tables, Table 1), and the 2017 diel monitoring results are summarized in (Attachment #2 — Tables, Table 2). Charts of the diel measurements are provided in (Attachment #3 - Diel Monitoring Graphs). The diel monitoring data was used to develop a time of day correction for the grab sample data. The incremental DO saturation measurements collected every 10 minutes were averaged for a one hour period for each canal selected for diel monitoring, with the exception of the diel data collected from canals 33 Key Largo, 61 Key Largo, 82 Rock Harbor, and 475 Geiger Key. The data from these canals was not included in the composite hourly average calculations because it was either an incomplete dataset (33 Key Largo), or the absolute difference between the first and last reading exceeded 30 percent; indicating that external factors other than diel variability was affecting the DO saturation measurements. The time of day correction calculations performed using a sine wave function determined 0 percent correction for values measured at 8 am, a -10 percent correction for values measured at 12 pm, and a -27 percent correction for values measured at 6 pm. The average of the diel measurements and the sine wave regression are provided in (Attachment #3- Diel Monitoring Graphs). Please note, that a time of day correction was not applied to canals with a depth greater than 10 feet, since diel monitoring collected to evaluate the progress of the demonstration program by FIU indicates that deeper portions of the water column do not exhibit significant diel variability. T " �a r c a� E R r a Packet Pg. 2041 Summary of Findings 2017 EPA Grant Task 1 WQ Monitoring Amec Foster Wheeler Environment & Infrastructure, Inc. Summary of Findings September 13, 2017 2017 EPA Grant Task 1 WQ Monitoring Project Number. 6783 -16 -2899 Amec Foster Wheeler Environment & Infrastructure, Inc. A comparison between the time of day corrected DO saturation in the upper six feet of the water column measured in 2013 versus 2017 indicates that an improvement in water quality in the canals across the County may have occurred as a result of the water quality improvement projects completed pursuant to the Reasonable Assurance Document (RAD). However, it is possible that the improvement in water quality may be associated in variability in ambient conditions. In 2013, 116 of the fair and poor canals (37 percent) exhibited a DO saturation below the current FDEP DO criteria. In 2017, 31 of the fair and poor canals (10 percent) exhibited a DO saturation below the current FDEP DO criteria. The average of the entire water column indicates that 36 canals exhibit a DO saturation below the criteria based on the grab samples. It should be noted that canals 266, 287, 29, and 472 that were restored for the demonstration program exhibited a DO saturation above the criteria. However, Canal 290 was below the FDEP DO criteria since the air curtain was installed after the grab sample event and therefore was not completely restored. The diel monitoring data indicates that 6 of the 10 canals exhibited more than 10 percent of values below the 42 percent criteria. A correlation between the time of day corrected DO saturation and diel results could not be completed, indicating that time of day corrected DO saturation measured by grab sample may be insufficient to characterize the predominant dissolved oxygen saturation in a water body. For example, of the ten canals selected for diel monitoring, only two canals were identified as being below the criteria based on the grab sampling activities, and canal 82 exhibited a DO saturation of 66.3 percent in the grab sample, but exhibited 64.6 percent of the diel measurements below the standard. Please recall that the current criteria specifies that no more than ten percent of the diel measurements can be below the standard. The 36 canals that did meet the criteria based on grab samples, and the 4 additional canals that did not meet the criteria based on the diel monitoring are listed in (Attachment #2 — Tables, Table 3). 7.0 RECOMMENDATIONS The 2017 water quality monitoring activities identified 40 non - compliant canals within the Keys based on the modified FDEP DO criteria and sampling methodology. Please note that of the 40 non - compliant canals one is a plugged canal, and two are adjacent and considered to be one project. Therefore, the 2017 monitoring activities have identified 38 canals that do not meet the FDEP modified criteria and sampling methodology (Attachment #2 — Tables, Table 3). The 2017 water quality monitoring data is a snap shot of the water quality of the canals CL within the Keys, and should be used to supplement the 2013 CMMP. Therefore, it is LU recommended that the County and municipalities should implement canal restoration projects using both the 2017 water quality monitoring data and the ranking and analysis completed for the 2013 CMMP; with consideration that the 2013 CMMP evaluated other factors such as biological indicators to gauge the long term water quality of the systems. Furthermore, it is recommended that a canal monitoring program be instituted that sufficiently characterizes the water quality of the canals to further assist with the prioritization of water quality restoration projects. Also, the monitoring program should be tailored to the water quality concerns for the canals and nearshore waters associated with Summary of Findings September 13, 2017 2017 EPA Grant Task 1 WQ Monitoring Project Number. 6783 -16 -2899 Amec Foster Wheeler Environment & Infrastructure, Inc. the RAID monitoring program. Amec Foster Wheeler recommends that the County and municipalities work closely with the Subcommittee to determine the appropriate sampling methodology, locations, and analysis for the monitoring program. Finally, it should be noted that in order to make a determination whether a water body is impaired for a constituent, FDEP states in 62- 303.320(4) F.A.C. that a minimum of 10 samples must be obtained within a 10 year period. Of these measurements, no more than 3 samples can be below the criteria for the constituent of concern, or the water body is considered impaired. Therefore, the sampling activities that were completed for this scope of work are insufficient to determine impairment. a� 0 as U) 0. a. L) ATTACHMENT #1 - FIGURES cu ' D CL 0 (D 0 CL (D F- 0 0 0 CL Lu (D E .a 0 .s M.7.a low ' .� . +�,rp M1 ' - .. - .o f �_� r r p F9 angrcrra L-1 sc� � a CJ r L- 0 3 Q m m a a U r- 0 W M U W Q i it Legend a Y 0 2017 WQ Monitoring Locations W r 0 2013 WQ Monitoring Locations i - E D • IGI b -, Canal Feature - _ E cs f4 r r Q N 1 inch = 1,500 feet Monroe County Canal Restoration Program Feet 0 750 1,500 3,000 CMMP PHASE IIIA.1 - WQ MONITORING LOCATIO Drawn Date amec foster wheeler h` MIAMI, FL Fig sJH 8 -22 -17 Checked Date Project # 6783- r Packet Pg. 2045 RF 8 -22 -17 ATTACHMENT #2 - TABLES Table 1 Summary of Dissolved Oxygen Measurements 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 Canal Name 2013 WQ Summary 2013 WQ Ranking 2013 Sample Date or Reference Canal 2017 Sample Date 2013 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Full Profile 2017 Time Corrected Minimum Observed D02 2017 Total Depth (ft) 2017 Time of Day Correction (%) 2 OCEAN REEF CLUB ADDED Fair Ref 2 Added 2 Feb -21 -17 69.3 97.7 115.9 114.2 15.7 -17.0 2 OCEAN REEF CLUB ADDED 2 Fair Feb -11 -13 Feb -21 -17 45.5 75.8 75.8 73.3 5.2 -20.4 4 OCEAN REEF CLUB Fair Feb -11 -13 Feb -21 -17 54.7 68.6 1 83.4 81.6 1 19.6 -17.0 4 Ocean Reef Club Fair Feb -11 -13 Feb -21 -17 -- 71.8 84.0 79.7 19.2 -17.0 7 KEY LARGO Fair May -10 -13 Feb -21 -17 NA 77 77 77 5 -9 13 KEY LARGO Fair May -10 -13 Feb -21 -17 43.4 76.9 76.9 75.1 5.6 -6.5 14 KEY LARGO Fair Ref 13 Feb -21 -17 43.4 69.9 69.9 68.2 4.6 -6.5 20 KEY LARGO Poor 45 Feb -11 -13 Feb -22 -17 10.7 61.8 47.0 23.6 18.6 -3.6 21 KEY LARGO Poor 80 Feb -12 -13 Feb -21 -17 17.8 63.8 63.8 63.1 5.7 -3.6 22 KEY LARGO Poor 81 Feb -11 -13 Feb -24 -17 16.8 57.5 63.0 56.3 18.3 -9.8 23 KEY LARGO Fair Feb -11 -13 Feb -24 -17 26.4 58.1 63.2 57.2 17.4 -9.8 24 KEY LARGO Fair May -09 -12 Feb -23 -17 75.9 64.2 69.4 56.2 16.3 0.0 24 Key Largo (1) Fair May -09 -12 Feb -23 -17 -- 54.5 41.3 19.5 18.2 0.0 25 KEY LARGO Fair Feb -12 -13 Feb -23 -17 55.0 67.5 49.3 7.6 33.2 0.0 26 KEY LARGO Poor 101 Feb -12 -13 Feb -23 -17 7.2 49.1 39.1 26.3 33.9 -1.4 27 KEY LARGO Poor 90 Ref 26 Feb -23 -17 7.2 75.9 54.7 12.2 33.1 -1.4 28 KEY LARGO Poor 67 Feb -12 -13 Feb -23 -17 35.8 64.3 42.5 6.8 27.6 -1.4 29 KEY LARGO Poor 92 Feb -12 -13 Feb -23 -17 34.3 74.2 74.2 67.0 6.9 -1.4 30 KEY LARGO Fair Feb -11 -13 Feb -23 -17 37.7 80.1 79.9 75.3 23.4 -3.6 31 KEY LARGO Poor 81 Feb -12 -13 Feb -24 -17 17.5 73.3 90.2 85.2 10.7 -13.4 32 KEY LARGO Fair Feb -12 -13 Feb -23 -17 38.6 81.1 83.0 79.7 13.2 -3.6 33 KEY LARGO Poor 96 Feb -12 -13 Feb -23 -17 1.0 44.2 44.2 40.0 6.6 -3.6 36 KEY LARGO Poor 80 Ref 37 Feb -21 -17 41.0 64.4 71.7 41.6 16.3 -23.2 37 KEY LARGO Poor 84 Jun -11 -13 Feb -21 -17 41.0 55.6 73.5 62.7 13.4 -23.2 38 KEY LARGO Fair Jun -11 -13 Feb -21 -17 57.7 71.5 93.0 89.5 13.7 -23.2 39 KEY LARGO Poor 94 Ref 41 Feb -24 -17 26.8 95.6 95.6 89.4 3.8 -17.0 40 KEY LARGO Poor 93 Ref 41 Feb -24 -17 26.8 93.0 93.0 93.0 2.9 -17.0 41 KEY LARGO Poor 93 Jun -11 -13 Feb -24 -17 26.8 87.7 87.7 87.6 7.5 -17.0 42 KEY LARGO Fair Jun -11 -13 Feb -21 -17 44.5 88.1 86.3 79.6 18.3 -3.6 42 Key Largo (1) Fair Jun -11 -13 Feb -21 -17 -- 87.2 88.0 85.0 20.2 -3.6 43 KEY LARGO Fair Feb -19 -13 Feb -24 -17 52.3 75.2 91.0 89.3 16.6 -17.0 44 KEY LARGO Fair Feb -19 -13 Feb -24 -17 27.2 68.1 68.1 58.4 5.5 -20.4 45 KEY LARGO Poor 75 May -09 -12 Feb -24 -17 76.1 61.7 78.9 72.7 12.6 -20.4 45 Key Largo (1 ) Poor 75 May -09 -12 Feb -24 -17 -- 61.0 75.8 68.3 14.5 -20.4 46 KEY LARGO Fair Feb -19 -13 Feb -24 -17 39.2 71.1 71.1 1 69.5 5.6 1 -13.4 47 KEY LARGO Poor 79 Feb -19 -13 Feb -24 -17 1.0 32.1 34.6 10.2 15.9 -20.4 47 Key Largo (1 ) Poor 79 Feb -19 -13 Feb -24 -17 -- 52.5 52.5 48.1 7.6 -20.4 48 KEY LARGO Poor 67 Jun -11 -13 Feb -24 -17 25.6 66.6 67.0 49.8 20.1 -13.4 49 KEY LARGO Poor 74 Ref 52 Mar -07 -17 1 45.7 68.2 69.9 66.4 13.8 0.0 50 KEY LARGO Poor 81 Feb -19 -13 Feb -24 -17 4.1 55.6 61.4 55.9 15.2 -6.5 51 KEY LARGO Fair Feb -19 -13 Feb -24 -17 32.9 79.0 75.3 58.3 18.3 -6.5 51 Key Largo (1 ) Fair Feb -19 -13 Feb -24 -17 -- 75.7 69.4 52.7 17.9 -6.5 52 KEY LARGO Poor 79 Feb -19 -13 Feb -25 -17 45.7 69.4 73.7 69.3 11.4 -6.5 53 KEY LARGO Poor 91 Ref 52 Feb -25 -17 45.7 83.4 84.7 67.6 10.6 -9.8 54 KEY LARGO Poor 101 Ref 52 Feb -25 -17 45.7 63.3 63.3 63.0 6.8 -9.8 55 KEY LARGO Fair Ref 51 Feb -24 -17 32.9 65.4 58.6 40.2 23.2 -6.5 56 KEY LARGO Fair Apr -17 -13 Feb -25 -17 59.9 75.5 80.3 74.2 1 15.8 -9.8 58 KEY LARGO Fair No access WQ est Feb -23 -17 41.9 68.3 68.3 67.2 6.0 -17.0 59 KEY LARGO Poor 82 Apr -17 -13 Feb -23 -17 1.0 56.2 56.2 56.2 2.7 -17.0 60 KEY LARGO Fair Apr -20 -13 Feb -23 -17 79.4 69.4 75.7 75.4 13.7 -6.5 60 Key Largo (1) Fair Apr -20 -13 Feb -23 -17 -- 74.0 79.0 76.1 11.2 -6.5 61 KEY LARGO Fair Ref 60 Feb -21 -17 79.4 64.1 63.1 61.3 9.4 0.0 63 ROCK HARBOR Poor 69 Apr -07 -13 Feb -21 -17 41.7 73.8 73.8 71.0 6.2 0.0 64 ROCK HARBOR Poor 95 Ref 65 Feb -27 -17 26.6 80.7 81.7 70.8 1 13.2 -6.5 65 ROCK HARBOR Poor 84 Apr -17 -13 Feb -27 -17 26.6 63.8 63.8 60.2 5.6 -6.5 67 ROCK HARBOR Fair Ref 70 Feb -27 -17 50.8 72.7 76.0 69.7 13.2 -6.5 70 ROCK HARBOR Fair X Apr -17 -13 Feb -27 -17 50.8 72.2 77.1 74.0 14.5 -6.5 72 ROCK HARBOR Fair Ref 74 Mar -01 -17 49.5 73.5 71.1 60.4 15.8 -3.6 73 ROCK HARBOR Fair Ref 74 Mar -01 -17 49.5 71.3 76.4 73.6 13.6 -6.5 74 ROCK HARBOR Fair Apr -07 -13 Mar -01 -17 49.5 69.3 73.9 70.1 13.1 -6.5 75 ROCK HARBOR Poor 73 Jun -11 -13 Mar -01 -17 50.5 83.4 78.6 57.8 1 22.3 -6.5 76 ROCK HARBOR Poor 87 Ref 75 Mar -01 -17 50.5 77.9 80.4 76.2 14.9 -6.5 76 ROCK HARBOR ADDED Fair No access WQ est Mar -01 -17 NA 82 82 80 7 -9 77 ROCK HARBOR Poor 69 Apr -17 -13 Feb -23 -17 46.2 66.4 66.4 64.1 7.3 -17.0 78 ROCK HARBOR Poor 97 May -09 -12 Feb -23 -17 22.4 53.1 70.8 65.4 13.6 -20.4 79 ROCK HARBOR Poor 68 Ref 81 Mar -01 -17 54.6 77.3 77.3 76.7 5.2 -13.4 80 ROCK HARBOR Poor 89 Ref 81 Mar -01 -17 54.6 77.7 87.6 80.5 13.3 -13.4 81 ROCK HARBOR Poor 89 Jun -11 -13 Mar -01 -17 54.6 31.3 56.3 1 6.5 1 12.2 1 -13.4 81 ROCK HARBOR ADDED Poor 87 Ref to 82 Mar -01 -17 12.5 77.7 87.6 80.5 12.3 -13.4 82 ROCK HARBOR Poor 99 Jun -11-13 Mar -01 -17 12.5 66.3 66.3 62.9 5.8 -9.8 83 ROCK HARBOR Poor 102 Ref 82 Mar -01 -17 12.5 78.0 78.0 70.7 6.5 -9.8 BtS Qd 1 of 5 Table 1 Summary of Dissolved Oxygen Measurements 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 Canal Name 2013 WQ Summary 2013 WQ Ranking 2013 Sample Date or Reference Canal 2017 Sample Date 2013 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Full Profile 2017 Time Corrected Minimum Observed D02 2017 Total Depth (ft) 2017 Time of Day Correction (%) 84 ROCK HARBOR Poor 103 Ref 82 Mar -01 -17 12.5 79.1 79.1 76.9 8.2 -9.8 86 ROCK HARBOR Fair No access WQ est Mar -01 -17 NA 76.3 76.3 76.2 5.9 -17.0 87 ROCK HARBOR Fair No access WQ est Mar -01 -17 NA 79.1 1 90.9 80.5 11.2 -17.0 88 ROCK HARBOR Fair No access WQ est Feb -27 -17 NA 83.1 83.1 82.9 5.9 -13.4 89 ROCK HARBOR Fair Jun -10 -13 Feb -23 -17 30.4 45.5 66.0 63.7 11.0 -20.4 90TAVERNIER Poor 62 Apr -17 -13 Feb -27 -17 34.7 81.1 87.7 77.6 18.3 -13.4 91 TAVERNIER Poor 78 Ref 90 Feb -27 -17 34.7 73.4 78.1 69.0 21.7 -13.4 92TAVERNIER Poor 78 Ref 90 Feb -27 -17 34.7 81.9 83.8 58.3 23.4 -13.4 93TAVERNIER Fair May -10 -13 Feb -27 -17 55.8 79.0 88.1 74.1 21.1 -17.0 94TAVERNIER Poor 63 Ref 90 Feb -27 -17 34.7 81.4 87.2 71.1 23.4 -13.4 95 TAVERNIER Fair Ref 96 Feb -27 -17 51.3 73.8 73.8 71.5 6.1 -17.0 96TAVERNIER Fair May -10 -13 Feb -27 -17 51.3 74.9 74.9 72.2 5.8 -17.0 97 TAVERNIER Fair Ref 96 Feb -27 -17 51.3 80.9 80.9 79.9 6.0 -17.0 99 TAVERNIER Fair Ref 96 Feb -27 -17 51.3 67.6 67.6 59.2 5.2 -17.0 100 TAVERNIER Fair Ref 96 Feb -27 -17 51.3 67.4 67.4 65.7 5.7 -17.0 102 TAVERNIER Poor 76 Ref 103 Mar -01 -17 29.6 104.2 1 115.5 104.0 11.4 -17.0 103TAVERNIER Poor 79 May -09 -13 Mar -01 -17 29.6 62.5 71.2 56.1 25.4 -20.4 104 TAVERNIER Poor 68 Ref 103 Mar -01 -17 29.6 63.6 81.7 76.4 27.1 -20.4 104 Tavernier (1) Poor 68 Ref 103 Mar -01 -17 -- 71.6 84.1 68.2 22.3 -20.4 105TAVERNIER Fair May -09 -13 Feb -23 -17 56.5 55.5 55.5 47.7 8.5 -20.4 108 PLANTATION KEY Poor 81 Jul -29 -13 Feb -27 -17 NA 85.6 85.6 83.8 5.0 -1.4 109 PLANTATION KEY Fair Ref 111 Feb -20 -17 19.8 1 50.4 43.8 8.5 18.8 -17.0 110 PLANTATION KEY Poor 62 May -09 -13 Feb -27 -17 40.3 86.8 74.7 59.0 21.1 0.0 111 PLANTATION KEY Fair May -08 -13 Feb -27 -17 19.8 59.7 80.2 78.2 13.3 -20.4 112 PLANTATION KEY Fair May -08 -13 Feb -20 -17 40.9 80.3 96.8 95.2 15.0 -17.0 113 PLANTATION KEY Fair May -09 -13 Feb -25 -17 52.8 52.0 51.5 50.5 9.3 -17.0 114 PLANTATION KEY Fair May -09 -13 Feb -27 -17 48.4 80.7 79.7 74.9 12.1 -1.4 115 PLANTATION KEY Fair Ref 114 Feb -27 -17 48.4 87.9 87.5 83.9 10.5 -1.4 116 PLANTATION KEY Poor 80 May -09 -13 Feb -27 -17 43.7 1 91.8 91.8 84.5 8.4 -1.4 116 PLANTATION KEY ADDED Poor 56 Jul -29 -13 Feb -27 -17 NA 89.5 79.6 52.5 14.6 -3.6 117 PLANTATION KEY Fair May -08 -13 Feb -20 -17 29.7 72.4 80.5 69.4 18.0 -13.4 118 PLANTATION KEY Fair May -08 -13 Feb -20 -17 43.9 79.8 93.0 92.5 14.0 -13.4 118 Plantation Key h I Fair May -08 -13 Feb -20 -17 -- 65.1 65.1 64.8 9.2 -13.4 119 PLANTATION KEY Fair Jun -10 -13 Feb -27 -17 48.6 75.6 53.9 21.4 16.6 -1.4 120 PLANTATION KEY Poor 86 Apr -20 -13 Feb -20 -17 36.0 83.9 87.0 80.2 12.0 -6.5 120 plantation key (1) Poor 86 Apr -20 -13 Feb -20 -17 -- 1 77.2 81.7 77.8 13.0 -6.5 121 PLANTATION KEY Fair Apr -20 -13 Feb -20 -17 61.7 92.0 94.8 87.5 18.0 -6.5 122 PLANTATION KEY Fair Jul -29 -13 Mar -07 -17 NA 82.7 69.9 39.1 21.0 -1.4 123 PLANTATION KEY Fair Ref 123 Added Feb -23 -17 48.3 40.9 40.9 8.9 3.3 -25.5 123 PLANTATION KEY ADDED Fair May -08 -13 Feb -23 -17 48.3 87.6 87.6 85.6 3.0 -25.5 127 PLANTATION KEY Poor 43 Apr -05 -13 Feb -22 -17 51.7 64.7 64.7 64.7 2.1 -1.4 129 PLANTATION KEY Poor 40 Ref 127 Mar -07 -17 51.7 47.4 50.5 48.1 17.5 -1.4 132 PLANTATION KEY Poor 62 Ref 137 Feb -27 -17 1 14.4 47.0 31.0 1.0 9.6 -25.5 137 PLANTATION KEY Poor 62 May -08 -13 Feb -27 -17 14.4 26.7 21.3 10.6 9.1 1 -25.5 139 WINDLEY KEY ADDED Poor 82 Ref to 139 Added 2 Feb -23 -17 NA 111.8 111.8 108.5 5.2 -25.5 139 WINDLEY KEY ADDED 2 Poor 61 Jul -29 -13 Feb -23 -17 NA 78.4 78.4 75.8 3.9 -25.5 140 UPPER MATECUMBE KEY Fair Jul -29 -13 Feb -27 -17 NA 131.7 131.7 131.7 3.7 -20.4 141 UPPER MATECUMBE KEY Fair Jul -29 -13 Feb -27 -17 NA 80.6 80.6 79.3 8.1 -23.2 142 UPPER MATECUMBE KEY Fair No access WQ est Feb -27 -17 NA 1 101.4 101.4 101.4 4.7 -23.2 143 UPPER MATECUMBE Poor 85 Jul -29 -13 Apr -28 -17 NA 77.3 74.7 38.4 1 16.7 -23.2 143 UPPER MATECUMBE ADDED Fair No access WQ est Feb -26 -17 NA 38.4 51.9 34.0 14.5 -25.5 144 LOWER MATECUMBE KEY Fair Jul -29 -13 Feb -28 -17 NA 71.0 71.0 64.7 6.9 0.0 145 LOWER MATECUMBE KEY Poor 87 Apr -05 -13 Apr -28 -17 50.3 36.7 43.6 16.8 10.6 -20.4 146 LOWER MATECUMBE KEY Fair No access WQ est Feb -28 -17 NA 76.8 65.7 40.7 10.1 -1.4 147 LOWER MATECUMBE KEY Poor 87 Apr -05 -13 Apr -28 -17 30.3 61.8 61.8 61.8 4.3 -20.4 148 LOWER MATECUMBE KEY Poor 99 Apr -05 -13 Apr -28 -17 18.2 65.5 65.5 65.4 5.7 -20.4 149 LOWER MATECUMBE KEY Fair Ref 150 Feb -28 -17 64.4 83.2 83.2 1 83.2 4.2 -3.6 150 LOWER MATECUMBE KEY Fair Apr -04 -13 Feb -28 -17 64.4 83.3 83.3 82.9 5.7 -3.6 150 Lower Matecumbe Key (1) Fair Apr -04 -13 Feb -28 -17 -- 93.7 75.7 39.6 20.1 -3.6 151 LOWER MATECUMBE KEY Fair Ref 150 Feb -28 -17 64.4 100.4 100.4 99.8 5.7 -1.4 151 LOWER MATECUMBE ADDED 2 Fair Jul -29 -13 Feb -28 -17 NA 56.6 56.6 56.6 2.6 -1.4 151 LOWER MATECUMBE ADDED Fair refer to 151 Added 2 Feb -28 -17 NA 1 89.5 83.6 68.9 10.8 -1.4 152 LOWER MATECUMBE KEY Fair Apr -04 -13 Feb -28 -17 40.7 76.6 76.6 75.9 1 5.6 -3.6 152 Lower Matecumbe Key Fair Apr -04 -13 Feb -28 -17 -- 79.0 79.0 71.5 5.7 -3.6 153 LOWER MATECUMBE KEY Fair Ref 152 Feb -28 -17 40.7 92.2 92.2 79.4 7.6 -6.5 154 LOWER MATECUMBE KEY Fair I Apr -04 -13 Feb -28 -17 49.2 82.1 82.1 82.1 6.6 -6.5 155 LOWER MATECUMBE KEY Fair X Mar -08 -13 Feb -28 -17 63.2 86.1 79.5 66.3 9.9 -6.5 156 LOWER MATECUMBE KEY Fair Ref 155 Feb -28 -17 63.2 80.1 80.1 80.1 6.7 -6.5 157 LOWER MATECUMBE KEY Poor 102 Apr -20 -13 Apr -28 -17 27.3 71.3 71.3 71.3 3.7 -17.0 158 LOWER MATECUMBE KEY Fair Ref 155 Feb -28 -17 63 80.8 80.3 6.9 -6.5 162 LONG KEY /LAYTON Fair Ref 163 Mar -02 -17 NA 55.0 41.7 14.2 14.6 0.0 BtS Qd 2 of 5 Table 1 Summary of Dissolved Oxygen Measurements 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 Canal Name 2013 WQ Summary 2013 WQ Ranking 2013 Sample Date or Reference Canal 2017 Sample Date 2013 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Full Profile 2017 Time Corrected Minimum Observed D02 2017 Total Depth (ft) 2017 Time of Day Correction (%) 163 LONG KEY /LAYTON Fair Phase I Mar -02 -17 NA 74.5 72.6 66.6 23.0 -1.4 164 CONCH KEY ADDED Fair May -10 -12 Mar -02 -17 53.2 62.8 62.8 60.8 5.9 -1.4 165 GRASSY KEY Fair No access WQ est NA NA Inaccessible by land and water 166 GRASSY KEY Fair No access WQ est NA NA Inaccessible b land and water 166 GRASSY KEY ADDED Poor 97 Mar -07 -13 Mar -02 -17 29.8 43.3 40.9 33.2 10.5 -1.4 169 MARATHON Fair No access WQ est Mar -07 -17 NA 88.6 52.9 6.6 33.5 -3.6 170 MARATHON Fair Mar -05 -13 Mar -10 -17 41.0 79.3 79.3 72.9 6.3 -23.2 171 MARATHON Fair No access WQ est Mar -02 -17 NA 49.8 39.1 15.4 15.4 -3.6 183 MARATHON Fair No access WQ est Mar -02 -17 NA 67.5 74.4 73.9 10.3 -6.5 184 MARATHON Fair Mar -05 -13 Mar -02 -17 69.2 44.2 1 39.5 22.8 12.8 -3.6 184 MARATHON ADDED Fair Ref 184 NA 69.2 Private land. Gated landside and waterside 186 MARATHON Fair Mar -05 -13 Mar -07 -17 53.1 72.2 72.2 70.2 8.2 -6.5 191 MARATHON Fair Mar -04 -13 Mar -07 -17 54.6 75.7 75.8 75.3 9.2 -6.5 198 MARATHON Fair Mar -04 -13 Mar -07 -17 50.9 39.3 39.3 37.5 7.9 -26.8 200 MARATHON Fair May -10 -12 Mar -02 -17 40.4 53.5 60.1 58.9 10.2 -6.5 220 MARATHON Poor 105 Ref 223 Mar -07 -17 34.7 2.0 2.0 1.0 4.8 -9.8 223 MARATHON Poor 88 May -15 -12 Mar -07 -17 34.7 58.7 58.7 57.5 8.9 -6.5 226 MARATHON Fair No access WQ est Mar -02 -17 NA 57.9 1 57.9 51.3 1 7.6 -6.5 228 MARATHON Fair Mar -05 -13 Mar -02 -17 64.8 47.2 50.1 43.1 13.9 -6.5 229 BIG PINE KEY Fair Jan -30 -13 Mar -06 -17 50.1 75.2 75.2 75.1 7.4 0.0 232 MARATHON ADDED Fair No access WQ est Mar -02 -17 NA 39.8 39.8 33.0 7.3 -9.8 232 MARATHON ADDED 2 Fair No access WQ est Mar -02 -17 NA 18.5 18.5 17.0 6.2 -9.8 233 BIG PINE KEY Fair Ref 229 Mar -06 -17 50.1 82.8 82.8 81.8 6.5 0.0 235 MARATHON Poor 94 Ref 237 Mar -10 -17 32.9 54.9 54.9 35.8 4.9 -23.2 237 MARATHON Poor 90 Mar -04 -13 Mar -10 -17 32.9 1 77.0 77.0 76.9 1 6.0 -23.2 239 MARATHON Fair Mar -04 -13 Mar -02 -17 45.8 8.6 8.6 4.7 7.7 -9.8 240 MARATHON Fair Ref 239 Mar -02 -17 45.8 1.0 9.5 6.1 17.2 -9.8 242 MARATHON Poor 101 Mar -04 -13 Mar -02 -17 45.2 8.3 19.8 15.8 12.5 -13.4 243 MARATHON Poor 72 Phase I Mar -02 -17 NA 71.0 88.8 79.5 19.1 -23.2 243 marathon (1 ) Poor 72 Phase I Mar -02 -17 -- 80.2 92.8 76.1 18.3 -23.2 244 MARATHON Fair No access WQ est Mar -07 -17 NA 65.4 65.4 64.0 7.3 -17.0 244 MARATHON ADDED 3 Fair No access WQ est Mar -10 -17 NA 53.7 53.7 49.1 1 5.8 -23.2 245 MARATHON Fair Mar -04 -13 Mar -02 -17 59.4 58.1 58.1 55.9 7.5 -25.5 246 MARATHON Fair Ref 245 Mar -02 -17 59.4 66.1 66.1 55.7 5.3 -25.5 248 MARATHON Fair Mar -03 -13 Mar -02 -17 60.4 65.8 60.8 50.7 9.4 -25.5 252 MARATHON Poor 71 Phase I Mar -07 -17 NA 66.9 83.4 81.5 14.0 1 -17.0 255 BIG PINE KEY Poor 59 Jan -30 -13 Mar -06 -17 23.3 69.8 1 77.5 73.2 10.2 -9.8 257 MARATHON Fair I Mar -04 -13 Mar -02 -17 49.9 13.1 13.1 4.7 8.5 -20.4 257 Marathon (1) Fair Mar -04 -13 Mar -02 -17 -- 35.8 35.8 35.8 3.6 -20.4 258 BIG PINE KEY Poor 79 Feb -01 -13 Mar -03 -17 44.5 57.3 57.3 50.2 7.2 -3.6 258 Big Pine Key Poor 79 Feb -01 -13 Mar -03 -17 -- 62.6 59.4 45.6 10.3 -3.6 259 BIG PINE Fair Mar -06 -13 Mar -03 -17 62.0 50.1 43.2 29.5 9.3 -3.6 260 MARATHON Fair Mar -04 -13 Mar -02 -17 52.8 56.1 52.3 44.9 9.6 -23.2 261 No Name Key Poor 74 Phase I Mar -03 -17 NA 11.4 1 9.6 5.7 15.5 -1.4 262 BIG TORCH KEY Fair Mar -06 -13 Mar -06 -17 49.4 66.4 71.0 69.3 17.5 -3.6 263 BIG PINE KEY Fair Mar -06 -13 Mar -03 -17 42.6 52.6 45.4 31.1 8.3 -3.6 265 No Name Key Poor 90 Mar -06 -13 Mar -03 -17 23.9 13.8 13.8 6.1 6.8 -3.6 266 BIG PINE KEY Poor 115 Phase I Mar -03 -17 NA 65.7 65.7 49.1 7.6 -3.6 269 MARATHON Fair Ref 257 Mar -07 -17 49.9 70.6 70.6 70.6 2.1 -17.0 271 MARATHON Fair Ref 257 Mar -02 -17 49.9 75.7 75.7 74.3 5.9 1 -20.4 277 BIG PINE KEY Poor 111 Feb -01 -13 Mar -03 -17 20.8 85.0 1 93.5 90.9 10.5 -9.8 277 BIG PINE KEY MERGED Poor 101 Ref 277 Mar -03 -17 20.8 53.9 54.5 36.1 11.1 -9.8 277 BIG PINE KEY MERGED 2 Poor 101 Ref 277 Mar -03 -17 20.8 64.6 61.8 36.7 13.2 -9.8 277 BIG PINE KEY MERGED 3 Poor 95 Ref 277 Mar -03 -17 20.8 45.2 42.9 26.0 15.1 -9.8 277 BIG PINE KEY MERGED 4 Poor 101 Ref 277 Mar -03 -17 20.8 37.7 36.5 12.9 16.3 -9.8 277 BIG PINE KEY MERGED 5 Poor 91 Ref 277 Mar -03 -17 20.8 42.1 44.5 29.7 13.5 -9.8 277 BIG PINE KEY MERGED 6 Poor 105 Ref 277 Mar -03 -17 20.8 28.4 32.0 26.1 12.6 -6.5 278 BIG PINE KEY Poor 91 Jan -28 -13 Mar -06 -17 63.0 62.4 1 62.4 57.6 5.0 0.0 278 BIG PINE KEY Poor 91 Jan -28 -13 Mar -06 -17 -- 63.2 63.2 59.2 5.2 0.0 279 LITTLE TORCH KEY Fair Jan -30 -13 Mar -08 -17 47.7 83.8 82.0 76.2 14.3 -1.4 280 LITTLE TORCH KEY Fair No access WQ est Mar -10 -17 NA 72.3 71.8 69.5 18.0 -1.4 281 LITTLE TORCH KEY Fair Jan -30 -13 Mar -08 -17 52.6 79.6 78.8 72.5 17.6 -3.6 282 BIG PINE KEY Poor 103 Feb -01 -13 Mar -03 -17 28.3 32.7 32.7 26.5 4.1 -17.0 283 BIG PINE KEY Poor 103 Ref 282 Mar -03 -17 28.3 29.8 29.8 17.6 8.5 -17.0 285 LITTLE TORCH KEY Fair Mar -06 -13 Mar -08 -17 NA 61.4 1 61.4 55.2 4.5 -3.6 286 BIG PINE KEY Poor 86 May -10 -12 Mar -03 -17 NA 38.8 38.8 20.0 4.5 -17.0 286 Big Pine Key (1) Poor 86 May -10 -12 Mar -03 -17 -- 52.1 50.9 24.1 15.9 -17.0 287 BIG PINE KEY Poor 112 Ref 288 Mar -03 -17 23.8 51.2 51.2 49.3 8.9 -17.0 288 BIG PINE KEY Poor 112 Jan -28 -13 Mar -03 -17 23.8 42.0 39.5 12.0 15.4 -13.4 289 BIG PINE KEY Fair Jan -28 -13 Mar -06 -17 NA 46.1 55.3 46.0 20.8 -1.4 290 BIG PINE KEY Poor 106 Feb -01 -13 t Mar -03 -17 22.0 30.3 18.1 1.0 BtS Qd 3 of 5 Table 1 Summary of Dissolved Oxygen Measurements 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 Canal Name 2013 WQ Summary 2013 WQ Ranking 2013 Sample Date or Reference Canal 2017 Sample Date 2013 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Upper 6 Feet (%) 2017 Time Corrected Average DO Full Profile 2017 Time Corrected Minimum Observed D02 2017 Total Depth (ft) 2017 Time of Day Correction (%) 291 BIG PINE KEY Fair Ref 289 Mar -06 -17 NA 39.6 25.9 7.4 24.6 -1.4 292 LITTLE TORCH KEY Fair Jan -30 -13 Mar -06 -17 56.7 46.0 53.3 46.4 10.4 -1.4 293 BIG PINE KEY Poor 97 Feb -01 -13 Mar -10 -17 5.9 9.4 1 14.2 9.1 12.0 0.0 295 BIG PINE KEY Poor 105 Ref 297 Mar -03 -17 1.0 37.6 37.6 37.6 2.3 -13.4 297 BIG PINE KEY Poor 115 Feb -01 -13 Mar -03 -17 1.0 51.4 51.4 46.4 5.6 -13.4 299 BIG PINE KEY Poor 121 Feb -01 -13 Mar -03 -17 1.0 43.4 43.4 34.5 5.9 -13.4 300 BIG PINE KEY Poor 111 Ref 299 Mar -03 -17 1.0 36.9 36.9 29.6 6.6 -9.8 310 RAMROD KEY Fair No access WQ est Mar -10 -17 NA 5.1 5.0 3.0 18.6 -1.4 311 RAMROD KEY Fair Mar -06 -13 Mar -08 -17 55.0 72.3 76.4 67.3 17.7 -9.8 315 BIG PINE KEY Poor 84 Mar -07 -13 Mar -10 -17 10.6 5.1 6.2 4.7 9.6 0.5 318 SUGARLOAF KEY Poor 66 Jan -31 -13 Mar -10 -17 24.5 58.6 58.6 53.2 5.8 -3.6 319 BIG PINE KEY Fair No access WQ est Mar -08 -17 NA 81.5 81.5 78.2 5.0 -3.6 320 SUMMERLAND KEY Fair Apr -05 -13 Mar -08 -17 39.0 95.8 95.4 94.6 9.9 -17.0 321 BIG PINE KEY Fair No access WQ est Mar -08 -17 NA 64.3 64.3 61.9 6.0 -3.6 323 SUMMERLAND KEY Poor 72 Apr -05 -13 Mar -08 -17 1.0 71.9 71.9 70.7 4.8 -17.0 324 CUDJOE KEY Fair Ref 336 Mar -09 -17 77.1 90.2 87.7 82.6 9.2 -20.4 325 SUGARLOAF KEY Poor 71 Ref 318 Mar -10 -17 24.5 63.8 63.8 62.1 7.3 -3.6 327 BIG PINE KEY Fair No access WQ est Mar -08 -17 NA 76.2 76.2 72.3 7.8 -3.6 328 SUMMERLAND KEY Fair Apr -17 -13 Mar -10 -17 42.3 59.4 59.4 56.0 7.1 -1.4 329 CUDJOE KEY Fair Phase I Mar -09 -17 NA 80.1 103.5 99.8 12.3 -23.2 332 CUDJOE KEY Fair Ref 329 Mar -09 -17 NA 83.2 102.1 93.4 19.4 -23.2 335 CUDJOE KEY Fair Apr -06 -13 Mar -09 -17 42.3 95.3 95.3 93.6 5.3 -20.4 335 Cudjoe Key Fair Apr -06 -13 Mar -09 -17 -- 88.7 88.7 84.8 5.3 -20.4 336 CUDJOE KEY Fair May -11 -12 Mar -09 -17 77.1 75.4 1 75.4 75.4 8.8 -25.5 336 Cudjoe Key (1) Fair May -11 -12 Mar -09 -17 -- 83.9 110.2 107.8 12.4 -25.5 337 CUDJOE KEY Fair Ref 329 Mar -09 -17 NA 81.5 106.0 104.2 11.7 -25.5 340 CUDJOE KEY Fair Ref 329 Mar -09 -17 NA 83.0 107.3 105.8 16.3 -25.5 342 BIG PINE KEY Fair No access WQ est Mar -08 -17 NA 78.8 78.8 77.6 5.0 -6.5 343 CUDJOE KEY Fair Ref 355 Mar -08 -17 53.7 91.7 110.7 108.0 10.1 -20.4 344 CUDJOE KEY Fair Ref 329 Mar -09 -17 NA 83.3 107.3 104.2 12.4 -25.5 345 CUDJOE KEY Poor 88 Ref 349 Mar -09 -17 22.5 84.7 1 84.7 84.0 5.3 -17.0 346 BIG PINE KEY Fair No access WQ est Mar -08 -17 NA 81.8 81.8 80.9 6.7 -6.5 347 CUDJOE KEY Fair Ref 355 Mar -08 -17 53.7 86.4 87.3 84.9 10.0 -20.4 348 BIG PINE KEY Fair No access WQ est Mar -08 -17 NA 72.2 74.2 68.4 23.3 -6.5 349 CUDJOE KEY Poor 88 Apr -06 -13 Mar -09 -17 22.5 81.9 81.9 80.1 5.8 -17.0 350 RAMROD KEY Fair Mar -06 -13 Mar -08 -17 50.7 87.8 87.8 83.8 5.2 -9.8 350 Ramrod Key (1) Fair Mar -06 -13 Mar -08 -17 -- 1 78 78 78 7 -9 352 CUDJOE KEY Fair Ref 355 Mar -08 -17 53.7 89.2 1 89.2 88.7 8.5 -20.4 353 CUDJOE KEY Poor 88 Ref 349 Mar -09 -17 22.5 80.6 80.6 79.1 6.3 -17.0 354 CUDJOE KEY Poor 84 Ref 349 Mar -09 -17 22.5 70.9 70.9 66.9 6.3 -17.0 355 CUDJOE KEY Fair Apr -06 -13 Mar -08 -17 53.7 84.6 84.6 82.2 8.0 -20.4 357 CUDJOE KEY Poor 84 Ref 349 Mar -09 -17 22.5 74.9 86.7 76.3 12.3 -17.0 359 CUDJOE KEY Poor 74 Ref 349 Mar -09 -17 22.5 73.8 85.3 77.2 17.9 -17.0 360 CUDJOE KEY Fair Ref 355 Mar -08 -17 53.7 87.1 87.4 1 86.7 9.4 1 -20.4 362 CUDJOE KEY Poor 74 Ref 349 Mar -09 -17 22.5 65 .7 84.7 74.4 17.3 -25.5 363 CUDJOE KEY Fair Ref 355 Mar -10 -17 53.7 g7.3 87.3 84.3 7.8 -9.8 364 CUDJOE KEY Poor 78 Ref 349 Mar -09 -17 22.5 76.2 87.7 80.4 16.6 -17.0 365 SUMMERLAND KEY Fair May -31 -13 NA 107.1 Private land. Gated landside and waterside 366 CUDJOE KEY Fair Ref 355 Mar -08 -17 1 53.7 90.7 110.3 108.8 11.0 -20.4 367 CUDJOE KEY Poor 78 Ref 349 Mar -09 -17 22.5 76.7 93.3 92.7 18.3 -17.0 368 CUDJOE KEY Fair Ref 355 Mar -08 -17 53.7 89.1 109.2 108.6 13.4 -20.4 369 CUDJOE KEY Poor 78 Ref 349 Mar -09 -17 22.5 84.1 84.1 83.3 6.5 -13.4 370 CUDJOE KEY Fair Ref 355 Mar -08 -17 53.7 100.1 113.7 97.5 18.3 -20.4 371 CUDJOE KEY Poor 94 Ref 372 Mar -09 -17 42.4 82.7 79.4 46.2 21.3 -13.4 372 CUDJOE KEY Poor 90 Apr -06 -13 Mar -09 -17 42.4 79.4 1 91.0 87.4 1 10.3 -13.4 373 CUDJOE KEY Poor 97 Apr -06 -13 Mar -08 -17 26.4 94.5 94.5 94.5 3.6 -20.4 374 CUDJOE KEY Poor 92 Ref 372 Mar -09 -17 42.4 79.2 79.2 77.6 7.2 -13.4 375 CUDJOE KEY Poor 97 Ref 373 Mar -09 -17 26.4 85.1 85.1 85.1 3.3 -9.8 376 CUDJOE KEY Poor 95 Ref 372 Mar -09 -17 42.4 84.1 84.1 84.0 5.2 -13.4 377 CUDJOE KEY Poor 94 Ref 372 Mar -09 -17 42.4 85.1 85.1 83.2 6.4 -13.4 378 CUDJOE KEY Poor 91 Ref 373 Mar -09 -17 26.4 87.5 87.5 87.5 1.6 -13.4 380 CUDJOE KEY Poor 78 Ref 373 Mar -09 -17 26.4 81.8 1 81.8 1 79.0 1 5.8 -13.4 382 SUMMERLAND Fair Ref 379 NA 76.0 Private land. Gated landside and waterside 383 SUMMERLAND Fair Ref 379 Mar -06 -17 76.0 66.5 1 66.5 1 63.4 1 5.3 -3.6 384 SUGARLOAF KEY Poor 86 Jan -31 -13 NA 13.5 Canal surveyed, data file corru led 385 SUGARLOAF KEY Fair Jan -31 -13 Mar -09 -17 50.7 93.0 93.0 91.9 5.7 0.0 386 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 92.9 92.9 92.6 5.4 0.0 387 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 91.0 91.0 88.0 5.4 0.0 388 SUGARLOAF KEY Poor 48 Jan -31 -13 Mar -09 -17 39.6 96.2 99.1 97.6 11.4 -3.6 389 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 92.1 92.1 90.9 6.3 0.0 390 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 96.0 97.0 96.3 11.1 -1.4 BtS Qd 4 of 5 Table 1 Summary of Dissolved Oxygen Measurements 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 Canal Name 2013 WQ Summary 2013 Wki Ranking 2013 Sample Date or Reference Canal 2017 Sample Date 2013 Time Corrected Average DO Upper 6 Feet (`%) 2017 Time Corrected Average DO Upper 6 Feet (`%) 2017 Time Corrected Average DO Full Profile 2017 Time Corrected Minimum Observed D02 2017 Total Depth (ft) 2017 Time of Day Correction (% ) 391 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 88.3 88.3 86.7 7.2 0.0 392 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 105.1 104.9 101.8 12.9 -1.4 393 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 96.5 1 97.0 95.3 12.9 -1.4 394 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 91.6 91.6 91.3 7.0 0.0 395 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 101.3 102.1 100.8 12.4 -1.4 396 SUGARLOAF KEY Fair Apr -18 -13 Mar -09 -17 76.0 95.0 96.7 92.7 11.6 -3.6 397 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 84.5 84.5 84.2 7.0 0.0 398 SUGARLOAF KEY Fair Ref 396 Mar -09 -17 76.0 85.4 88.4 87.2 11.0 -3.6 399 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 103.9 104.1 101.6 1 14.1 -1.4 400 SUGARLOAF KEY Fair Ref 385 Mar -09 -17 50.7 88.5 88.5 86.8 8.6 0.0 401 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 105.1 106.2 105.6 12.3 -1.4 402 SUGARLOAF KEY Fair Apr -18 -13 Mar -09 -17 47.4 93.2 92.7 91.8 9.3 -6.5 403 SUGARLOAF KEY Fair Apr -18 -13 Mar -09 -17 55.1 103.9 105.1 104.9 13.1 -1.4 404 SUGARLOAF KEY Fair Ref 402 Mar -09 -17 47.4 94 94.8 94.3 8.5 -3.6 405 SUGARLOAF KEY Fair Ref 402 Mar -09 -17 47.4 95.0 98.5 98.1 10.1 -3.6 406 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 101.6 101.4 98.3 12.5 -1.4 407 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 100.1 101.4 101.1 12.2 -1.4 408 SUGARLOAF KEY Fair Ref 403 Mar -09 -17 55.1 99.6 98.4 92.3 14.2 -1.4 410 SUGARLOAF KEY Fair Ref 413 Mar -09 -17 44.2 90.6 90.3 89.8 9.3 -3.6 411 SUGARLOAF KEY Fair Apr -18 -13 Mar -09 -17 51.4 97.5 97.1 96.1 9.9 -3.6 413 SUGARLOAF KEY Fair Apr -18 -13 Mar -09 -17 44.2 91.6 90.8 89.1 9.9 -3.6 416 SUGARLOAF KEY Fair Ref 411 Mar -09 -17 51.4 90.1 90.1 87.7 8.7 -3.6 418 SUGARLOAF KEY Fair Ref 413 Mar -09 -17 44.2 90.3 1 88.5 84.9 9.9 -3.6 432 SADDLEBUNCH KEYS Fair Ref 433 Mar -10 -17 36.9 73.5 73.5 72.9 5.7 -6.5 433 SADDLEBUNCH KEYS (MERGED) Poor 86 May -11 -12 Mar -10 -17 36.9 91.9 91.9 91.8 5.7 -6.5 435 SADDLEBUNCH KEYS Poor 76 Ref 433 Mar -10 -17 36.9 68.3 68.8 65.6 9.6 -3.6 436 BIG COPPITT KEY Fair Ref 443 Mar -05 -17 56.8 72.0 89.0 83.8 22.9 -20.4 440 BIG COPPITT KEY Fair Ref 443 Mar -05 -17 56.8 88.9 88.9 87.3 6.9 -20.4 443 BIG COPPITT KEY Fair May -31 -13 Mar -05 -17 56.8 2.1 22.2 4.7 22.8 -20.4 447 BIG COPPITT KEY Fair Ref 443 Mar -05 -17 56.8 66.3 1 83.6 14.0 -25.5 448 BIG COPPITT KEY Fair Refer to 447 Mar -05 -17 56.8 68.2 611 ! �3 66.7 6.0 -25.5 449 BIG COPPITT KEY Fair Apr -19 -13 Mar -05 -17 46.8 79.4 79.4 78.0 6.2 -9.8 456 GEIGER KEY Poor 86 Ref 466 NA 21.1 Landowner re nested the surve team to leave 457 KEY HAVEN Fair Jan -29 -13 Mar -05 -17 54.5 92.7 102.2 96.9 10.3 -6.5 458 GEIGER KEY Poor 71 Ref 466 NA 21.1 Landowner re nested the surve y team to leave 459 GEIGER KEY Poor 86 Ref 466 Mar -05 -17 21.1 75.3 75.3 73.8 7.5 -23.2 465 GEIGER KEY Poor 79 Ref 466 Mar -05 -17 21.1 80.6 80.6 78.5 5.5 -13.4 466 GEIGER KEY Poor 81 Apr -19 -13 Mar -05 -17 21.1 69.5 70.6 69.1 10.0 -23.2 467 GEIGER KEY Poor 74 Ref 466 Mar -05 -17 21.1 64.8 64.8 62.4 8.6 -23.2 468 GEIGER KEY Poor 70 Ref 466 Mar -05 -17 21.1 78.5 78.5 77.2 8.8 -20.4 470 GEIGER KEY Poor 51 Apr -19 -13 Mar -05 -17 44.2 72.5 84.7 81.7 16.9 -9.8 471 KEY HAVEN Fair Jan -29 -13 Mar -05 -17 71.2 96.4 1 96.4 94.4 1 8.3 -6.5 471 Key Haven (1) Fair Jan -29 -13 Mar -05 -17 -- 86.6 88.0 84.1 9.2 -6.5 472 GEIGER KEY Poor 100 Ref 475 Mar -05 -17 36.2 66.3 66.3 66.0 5.5 -13.4 E 2 EIGER KEY Poor 100 Ref 475 Mar -05 -17 36.2 40.6 38.0 24.7 9.4 -9.8 475 GEIGER KEY Poor 101 Apr -19 -13 Mar -05 -17 36.2 41.6 41.6 34.8 6.8 -9.8 476 GEIGER KEY Poor 100 Ref 475 Mar -05 -17 36.2 65.5 54.5 31.1 15.0 -9.8 Count of Values less than 42 percentl 116 l 31 l 36 l 62 l Notes: 1 - Indicates that the values provided are for the second sample collected within that canal system 2 - Time correction was not performed for the full profile average DO or for the minimum DO if the total depth was greater than 10 feet. Negative time corrected values reported as 1%. NA - Indicates that either No Access, or that the detailed 2013 survey data is no longer available. -- Indicates that the sample location was the second for that canal system, and the 2013 survey data is summarized for the first sample location. BtS Qd 5 of 5 uo a ;epdn :D3WV) [� uoisinab] :podob goal 6uiao ;iuoW A ;!Ient) aa;eM ;ueJO Vd3 � Isel :;uauayoe;;br to c O O E p O 00 m 00 O 0 c T a` c � O — rid c O C� O v 0 O c T U Z N T N E O c O a u u N U 0) L N O d Q 0 w O ~ n 0 O N 01 V 01 N 01 t O Q 01 E 01 7 N v E T E m 7 O 01 O 01 c to c v _v 0 0 V V c v 7 � E a o 0 i 0 a c T L Ln c-I V N _0 T c � o O u iF iF to M t c 7 V c O c v 01 3 O m v 3 " 0 Ln 0 m I� V f6 p Z 71 w 0 � O O � L o N 10 0 Ln Ln m a • y 7 N cN-I N N Ln c Ln 0 N C N O � N 71 W� w � O � a` Q o � O O 00 m N c-I m ? m' V 0 m G. 71 l0 l0 l0 l0 ':.. to Ln U � w m E C7 F N a w c 71 c ±' Q V v o 0 N o ++ o N N c-I o I� Ln I- -z� O i 4 O n 00 N 6 Ln I- m O � p 0 Ln zt m m m m to t a N v m m O <D m m O I- � 00 I l0 N > 0 E m N N N m N m c-I W-1 c-I N O c-I ry� N x Q 71 N Ln O'zt m 'zt N W W � Ln l0 l0 W I� W l0 I� W W 71 a Q 71 + > C m I- N O N m m W m N m m W m W m'zt N V T Q� c-I N O I� m c-I m lD lD N N V £ m o N I Ln m c-I c-I 00 I y O\ m Ln N 0 00 0 N N c-I m Ln m -j m m Ln -j Ln -j O 7 c - m O N 00 00 m m I 00 m 0 0 Ln Ln 0 Ln Ln Ln 0 > v a o o v o 3 m o m � m Ln o0 m .. m m rl rl: Ln 'ZI: O rl: m w o o m o m m M 0 m m > y m m N m N N N m N N a Q E v T iF iF iF O 01 Y T 01 T 01 O O O O O O N Y Y c !' co co co co co co = 'a 0�p 0�p T 01 T 01 T 01 T 01 T 01 T 01 V O .LO 07 01 C7 C7 D Y Y Y Y Y Y K 00 N Ln O N ' r, N Ln N m Ln l0 00 00 N I� n 01 V 01 N 01 t O Q 01 E 01 7 N v E T E m 7 O 01 O 01 c to c v _v 0 0 V V c v 7 � E a o 0 i 0 a c T L Ln c-I V N _0 T c � o O u iF iF to M t c 7 V c O c v 01 3 O m Table 3 Ranking of Canals for Restoration Based on Dissolved Oxygen Measurements 2017 EPA Grant - Task 1 Water Quality Monitoring Monroe County Canal Restoration Program AMEC Project Number: 6783 -16 -2899 RANK CANAL FULL PROFILE TIME CORRECTED AVERAGE DO ( %) UNINCORPORATED'MONROE COUNTY('!) 1 315 BIG PINE KEY 6.2 2 261 No Name Key 9.6 3 265 No Name Key 13.8 4 293 BIG PINE KEY 14.2 5 290 BIG PINE KEY 18.1 6 443 BIG COPPITT KEY 22.2 7 291 BIG PINE KEY 25.9 8 283 BIG PINE KEY 29.8 9 277 BIG PINE KEY 32.0 10 282 BIG PINE KEY 32.7 11 47 KEY LARGO 34.6 12 300 BIG PINE KEY 36.9 13 295 BIG PINE KEY 37.6 14 474 GEIGER KEY 38.0 15 286 BIG PINE KEY 38.8 16 26 KEY LARGO 39.1 17 288 BIG PINE KEY 39.5 18 24 KEY LARGO 41.3 19 475 GEIGER KEY 41.6 20 162 LONG KEY /LAYTON 41.7 21 33 KEY LARGO 44.2 22 50 KEY LARGO 61.4 23 61 KEY LARGO 63.1 24 82 ROCK HARBOR (3) 66.3 MARATHON' 1 220 MARATHON 2.0 2 239 MARATHON 8.6 3 240 MARATHON 9.5 4 257 MARATHON 13.1 5 232 MARATHON ADDED 2 18.5 6 242 MARATHON 19.8 7 171 MARATHON 39.1 8 198 MARATHON 39.3 9 184 MARATHON 39.5 10 232 MARATHON ADDED 39.8 11 166 GRASSY KEY ADDED 40.9 1SLAMORADA 1 137 PLANTATION KEY 21.3 2 132 PLANTATION KEY 31.0 3 123 PLANTATION KEY 40.9 Notes: (1) Canal 310 was removed from the list because it is a plugged canal. (2) Restoration of 277 Merged 4 & 6 are considered one project. (3) Indicates that the canal met the FDEP DO criteria for the grab sample event, but did not meet the FDEP DO critera for the 24 hr diel measurement. �a as E ATTACHMENT #3 - DIEL MONITORING GRAPHS R bA C . E 0 0 v v 0 W 0 N 0 z uo a ;epdn 03WV) [� uoisinab] :todab goal 6uiao ;iuoW A ;iIent) aa;eM ;ueJO Vd3 6 3 isel :;uauayoe;;br � O N C1 CL i r m R a m 0 0 0 0 r,. 0 0 0 � o N O O O O Ln Ln > o tto O O N N L J N • E O ~ O N O O m m Ln > tlA J 0 Ln ° O O N 0 _ Ln 0 O ~ O ti O N o 0 0 0 0 0 0 0 0 0 0 0 0 • O m m r �o Ln a m N ti ti O (�� uoileinieS uaBAxo panIosSi4 O tw • Ln > ° � J O N � o ti•� 0 0 0 0 0 0 0 0 0 0 0 0 0 O ti 0 0 0 0 0 0 0 0 m m r �o Ln a m N 0 ti 0 (�� uoileinieS uaOAxo panIosSi4 N g O O Ln I • o 0 0 0 0 0 0 0 0 0 0 0` o o o o o o o o O O O O ti m m r- �o Ln a m N ti (�� uoileinieS uaOAxo panIosSi4 i r m R a m 0 0 0 0 r,. 0 0 � o N O O O Ln O > o tto O O J N L J N • E O ~ N O O m m Ln > tlA J • �a Ln ° O O N O O O O O O O O O _ Ln 0 O ~ O ti O o 0 0 0 0 0 0 0 0 0 0 0 0 O m m r �o Ln a m N ti ti (�� uoileinieS uaBAxo panIosSi4 o ti•� 0 0 0 0 0 0 0 0 0 0 0 0 0 O ti 0 0 0 0 0 0 0 0 m m r �o Ln a m N 0 ti 0 (�� uoileinieS uaOAxo panIosSi4 i r m R a m 0 0 0 0 0 � o N O O O Ln O > o tto O O J N L J N • E ~ N O o m m 0 Ln O O 0 O O O O O O O O O _ Ln 0 0 O ti O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O m m r �o Ln a m N ti ti (�� uoileinieS uaBAxo panIosSi4 i r m R a m 0 0 0 O vi N O O O N O O Ln ti > O t to 0 ° L J N 0 E O ~ o N 0 0 Ln O O O O O O O O O O O O O 0 0 0 0 0 0 0 0 0 0 0 O m m r �o Ln a m N ti ti (�� uoileinieS uaOAxo panIosSi4 i r m R a m 0 0 R uo a ;epdn :D3WV) [� uoisinab] :podab goal 6uiao ;iuoW A ;!Ient) aa;eM ;ueJO Vd3 6 lisel : ;uauayoe;;br O O N '� O O O N O O Ln O m tto L 0 � O J �• E 0 0 ~ Y • 0 ••i O O vi fLij O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O m m � 'o in a m N ti ti (�� uolleinieS uaOAxo panlosS14 O O vi N O O O N y i • o > Ln O o to r6 O J N E O ~ o O ~ _ O O L ^. N • I O .� O O O O O O O O O O O O O O O O O O O O O O O O O m W I to Ln t m rV c-I ti (�� uolleinieS uaOAxo panlosSl(I O O vi N O Y U O N 00 00 O O O N •• 0 0 0 s v • E O ~ 0 ti ' 00 0 O O O O O O O O O O O O O O O O O O O O O O O O O m W I to Ln -zt m rV c-I ti (�� uolleinieS uaOAxo panlosSla CD LO O N Cl CL r m v R CL m 0 0 N O O Ln •• Cb I N O O O N 0 _ O Ln ? 0 O � a E 0 0 0 ~ m 00 00 N O O vi I I • O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O m m r �o in a m N ti ti (�� uolleinieS uaOAxo panlosS14 O O vi N O Y U O N 00 00 O O O N •• 0 0 0 s v • E O ~ 0 ti ' 00 0 O O O O O O O O O O O O O O O O O O O O O O O O O m W I to Ln -zt m rV c-I ti (�� uolleinieS uaOAxo panlosSla CD LO O N Cl CL r m v R CL m 0 0 N R uo a ;epdn :D3WV) [� uoisinab] :podob goal 6uiao ;iuoW A ;!Ient) aa;eM ;ueJO Vd3 6 Isel :;uauayoe;;br r- LO O N Cl CL r m R CL m 0 0 m i• GO • 0 O O O ti a N Y Ln 0 0 L L 0 O D i. O O Ln r- N 0 O Ill � O O O O O O O O O O O O O O O O O O O O O O O O O to Lr1 t m rV rI /o) uoiaeanieS uaOAxo panIosSi4 r- LO O N Cl CL r m R CL m 0 0 m O O Ln Ln N N � O v v > v a v 2 O ; v O O v a m O O E T O N � N 7 N U O c = In I O O O O 0 * 0 L � O 0 � 0 O tto L m H H O O o > o N Q O O O O I N L a N W O O 0 O O O O O O O O O O O O O O O O O O O O O O O O DD C O O O O O O O O O 7 Ol W I� l0 Ill -zt m N O N . O O O . O m . O . O I . . . O O O l0 Ill :t . . . . . O O O O - p m N N N — -' `imnpmip S uaOAxo panIosSi4 ( %) uoileinieS uaOAxo panIosSi4 w r- LO O N Cl CL r m R CL m 0 0 m T I 'UNDE B cANU wAiRR ouum uonnoRn�c ERRORT FUNDE 8V EPA ORIHT It)OOOIUYIS AND YOHROE COUNiV Rhonda Haag Monroe County Greg Corning, PE Amec Foster Wheeler 10/17/2017 1 10/17/2017 Scope of Work: A. Collection of 310 grab samples to analyse Dissolved Oxygen (DO) data • Samples collected from original list of 180 Fair and 130 Poor rated canals. No Good rated canals were resampled. • Sampled February —April 2017. B. Additional collection of diel measurements from 10 other canals • Provide a representative dataset throughout the Florida Keys. C. Collection of sediment cores from 15 other canals that have documented organic bottom sediment loading greater than 0.75 feet in thickness • Evaluate potential for reusing canal sediments in planning and cost evaluation of organic removal and backfilling D. 8 poor / fair canals were not sampled • Found to be located on private undeveloped lands with e no access from land or water. 1 corrupted data sample. • water uuanty — aaaress organic matenai te.g., weea wracKi reiatea issues • Improve Sediment and Habitat Quality • Generate Public Involvement in the canal management process B. CMMP Phase 11 2013 — Methodology approved by DEP and Subcommittee • FDEP 2012 62- 302.530, DO shall never be measured at less than 4.0 mg /L at any point or time • Biological Indicators • Measurements - taken at representative sample locations and along a vertical profile to obtain the lowest measured reading C. CMMP Phase IIIA 2016 — Methodology approved by DEP and Subcommittee • FDEP water quality methodology for Dissolved Oxygen was modified from "4 mg /Liter" to a "% saturation ". • Measurements taken at center of canal and along a vertical profile to obtain the daily average reading • 302 Canals Sampled RA 10/17/2017 25 canals out of 302 sampled exhibited a daily average DO saturation below the current DEP Dissolved Oxygen (DO) criteria using grab samples • 1 -time grab samples collected February - April 2017 2. 5 canals out of 10 sampled exhibited a daily average DO saturation below the current DO criteria using Diel monitoring • Samples from 10 canals selected for 24 hour die[ monitoring • 9 of 10 of these samples passed the April grab samples • Diel monitoring completed May 2017 3. Poor correlation exists between all the grab samples and also between the diel monitoring from 2013 and 2017 • Indicates that water quality conditions in canals are highly variable, and a canal monitoring program with a sufficient frequency of sample collection is necessary 91 10/17/2017 DRAFT FLORIDA KEYS LIST OF CANALS NOT MEETING THE FDEP CRITERIA FOR DISSOLVED OXYGEN BASED ON FEBRUARY AND MAY 2017 WATER QUALITY RESULTS FROM EPA FUNDED CMMP PART III -A _ CANA (2) TECHNOLOGY COST 290 BIG PINE KEY(') BACKFILLING $1 265 NO NAME KEY _+ _ BACKFILLING AND AIR CURTAIN 24 KEY LARGO 61 KEY LARGO( _ _ ORGANIC REMOVAL, BACKFILLING AND AIR CURTAIN _ __$ $ 952 ,0 08 293 BI PINE KEY ORGANI REMOVAL, BACKFILLING AND AIR CURTAIN $2,145,335 315 BI PINE KEY ORGANIC REMOVAL, BACKFILLING AND AIR CU $2,473, 82 ROCK HARBOR( ORGANIC REMOVAL, BACKFILLING AND AIR CURTAIN_ _ $2,547,22_9 _ 443 BIG COPPITT KEY BACKFILLING $2,655,573 291 BIG PINE KEY BACKFILLING $2,944,118 475 GEIGER KEYM BACKFILLING, CULVERT AND AIR CURTAIN _ $3,124,154 _ 288 BIG PINE KEY OR_G_A_ NIC REMOVAL, BACKFILLING AND AIR CURTAIN $3,305,477 47 KEY LARGO _ BACKFILLING AND CULVERT _ _ $4,819,475 277 BIG PINE KEY ORGANIC REMOVAL, BACKFILLING, AND CULVERT $5,764,147 33 KEY LARG (3) ORGANIC REMOVAL, BACKFILLING, CULVERT AND AIR CURTAIN $6,618,009 50 KEY LARGO( ORGANIC REMOVAL, BACKFILLING, CULVERT AND AIR CURTAIN $8,888,858 162 LONG KEY / LAYTON ORGANIC REMOVAL, BACKFILLING AND AIR CURTAIN $12,129,938 26 KEY LARGO ORGANIC REMOVAL, BACKFILLING, CULVERT AND AIR CURTAIN $13,590,209 261 NO NAME KEY ORGANIC REMOVAL, BACKFILLING, CULVERT AND AIR CURTAIN $23,569,737 24 KEY LARGO ORGANIC REMOVAL,,BACKFILLING, AND CULVERT $23,893,007 TOTAL $120,257,798 2 2017 water quality data is only a snap shot of the water quality of the canals, and should be used to supplement, not replace, the 2013 CMMP data. 3. Does riot recommend using only the list of 28 canals as the final list of waterbodies that need restoration. DEP Impaired Waters Rule uses numerous samples for an assessment, not 1 or 2 4. County should continue to implement canal restoration projects using both the 2017 water quality monitoring data and the 2013 ranking and analysis 2013 CMMP evaluation included biological indicators such as turbidity, algae growth, sponges, seagrasses, and fish to gauge the long term water quality of the systems. 5. Canal monitoring program recommended to sufficiently characterize the canal water quality and assist with prioritization of restoration projects. 4 10/17/2017 3. Continue to work with Canal Advisory Subcommittee Strategies for prioritization of projects • Achieve water quality improvement for canals and near shore waters • Achieve cost efficiency Select FY18 restoration projects 4. Continue to pursue funding opportunities with State and Federal agencies to continue the implementation of canal restoration projects. Include RESTORE funds. 5. Prepare a canal water quality monitoring program to prioritize future canal projects and track improvement efficiencies associated with completed restoration projects. r i Canal 75 - Backfilling to begin soon. Vendor Adventure Environmental emoving storm debris at no charge. Canal 83 - Backfilling completed in July. Some storm debris. 1. Continue to prioritize canals for Restoration Use ranking and water quality data from 2013 • Add supplemental water quality data from 2017 • Add ongoing and new monitoring data from County and DEP canal monitoring efforts. 2. Incorporate lessons learned from demonstration program and results from FIU Final Report Canal 266 -Air Curtain Canal 290 - Air Curtain Canal 287 - Air Curtain $104,000 damage replacement $100,000 damage replacement $112,000 damage replacement assessment assessment assessment 10/17/2017 Thank You