NEWPORT BAY FECAL COLIFORM TMDL

Transcription

1 NEWPORT BAY FECAL COLIFORM TMDL 2017 ANNUAL DATA REPORT SEPTEMBER 1, 2017 Prepared for: Santa Ana Regional Water Quality Control Board to fulfill requirements of the TMDL for Fecal Coliform in Newport Bay (Resolution 99-10), and the January California Water Code Section letter Prepared and submitted by: County of Orange OC Public Works / OC Environmental Resources/Water Quality Compliance 2301 North Glassell Street Orange, CA Submitted on behalf of the: County of Orange Orange County Flood Control District City of Costa Mesa City of Irvine City of Lake Forest City of Newport Beach City of Orange City of Santa Ana City of Tustin

2 PREPARED UNDER THE DIRECTION OF: Chris Crompton, Manager, Water Quality Compliance By: Water Quality Planning Jian Peng, Chief Suzan Given, Environmental Resources Specialist Stuart Goong, Environmental Resources Specialist Data support by: Justin Grewal, Environmental Resources Specialist Photo credits: Stuart Goong and Dennis Tebo, OC Public Works

3 TABLE OF CONTENTS 1.0 Introduction Numeric Targets Routine Monitoring Program Analysis of Water Contact Recreation (REC 1) and Shellfish Harvesting (SHEL) Numeric Targets Impairment Analysis Long Term Trends Summary... 6 LIST OF TABLES Table 1a. REC-1 fecal coliform TMDL numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Lower Newport Bay... 9 Table 1b. REC-1 fecal coliform TMDL numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Upper Newport Bay Table 2a. REC-1 Enterococcus numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Lower Newport Bay Table 2b. REC-1 Enterococcus numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Upper Newport Bay Table 3a. SHEL fecal coliform TMDL numeric targets (April 1, 2016 March 31, 2017) assessment by calendar month for Lower Newport Bay Table 3b. SHEL fecal coliform TMDL numeric targets (April 1, 2016 March 31, 2017) assessment by calendar month for Upper Newport Bay i

4 LIST OF FIGURES Figure 1. Bacteriological Water Sampling Stations in Newport Bay Figure 2. Rainfall totals by monitoring year at the Costa Mesa (OCPW #165) and Corona del Mar (OCPW #169) gauges Figure 3. Number of months the fecal coliform geomean is greater than 200 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) Figure 4. Percentage of fecal coliform samples greater than 400 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) Figure 5. Number of months the Enterococcus geomean is greater than 35 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) Figure 6. Percentage of Enterococcus samples greater than 104 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) Figure 7. Upper and Lower Newport Bay annual geomean fecal coliform trend data for dry weather data only Figure 8. Upper and Lower Newport Bay annual geomean fecal coliform trend data for dry and wet weather data combined LIST OF APPENDICES APPENDIX A. Monitoring data... A-1 APPENDIX B. Annual fecal coliform and Enterococcus geomean trend data... B-1 ii

5 1.0 Introduction The Fecal Coliform Total Maximum Daily Load (TMDL) for Newport Bay was established by the Santa Ana Regional Water Quality Control Board (Regional Board) on April 9, The TMDL and the January 7, 2000 Water Code Section letter from the Regional Board require the County of Orange (County) and the cities of Costa Mesa, Irvine, Lake Forest, Newport Beach, Orange, Santa Ana and Tustin (watershed cities) to develop a routine monitoring program for Newport Bay and to submit an annual report by September 1 of each year that summarizes annual (April 1 through March 31) bacteriological data collected in Newport Bay and evaluates the TMDL numeric targets, which are based on the bacterial water quality objectives (WQOs) in the Water Quality Control Plan for the Santa Ana River Basin (Basin Plan). This report fulfills the requirement and summarizes monitoring data from April 1, 2016 through March 31, Numeric Targets Fecal Coliform TMDL Targets The TMDL established a prioritized, phased approach to the control of bacterial water quality in the Newport Bay and set the following numeric targets for fecal coliform. For bacterial concentrations in this report, the terms organisms, MPN, and CFU are considered equivalent. 1 For REC-1, the TMDL target is: Fecal coliform concentration: log mean ( geomean ) less than 200 organisms/100 ml, based on five or more samples/30 day period, and not more than 10% of the samples exceed 400 organisms/100 ml for any 30-day period. The Regional Board has provided clarification that any 30-day period refers to 12 discrete monthly averages and should not be construed as a running mean that overlaps more than one calendar month. 2 The analyses in Section 4.0 of this report are therefore based on monthly averages rather than a running mean. For SHEL, the TMDL target is: Fecal coliform concentration: monthly median concentration not more than 14 MPN (most probable number)/100 ml and not more than 10% of samples exceed 43 MPN/100 ml. Enterococcus criteria Enterococcus was included in the TMDL monitoring requirements, but no Enterococcus targets were established in the TMDL. The 2000 BEACH Act and subsequent Final Water Quality Standards 1 USEPA Protocol for developing pathogen TMDLs. 841-R USEPA Office of Water, Washington, DC. 2 Verbal and Tentative Order R , Appendix C 1

6 Bacteria Rule for Coastal and Great Lakes Waters (EPA 2004, hereinafter termed Great Lakes Rule) 3 added a 30-day geomean Enterococcus criterion of 35 CFU (Colony Forming Units)/100 ml for water contact recreation (REC-1) for coastal water in states including California. The single sample maximum of 104 CFU/100 ml was developed to allow informed decisions to open or close beaches, not as a never-to-be surpassed value for all implementation applications under the Clean Water Act, although it is suggested to be used if there are not enough data to calculate a geomean (Great Lakes Rule pages ). Since enough data were collected in Newport Bay to calculate geomeans, this report does not evaluate data based on the single sample maximum. In 2012, EPA concluded that Enterococcus in marine waters were a good indicator of fecal contamination and a predictor of gastrointestinal illness, but fecal coliforms were not. 4 As a consequence, the Regional Board is proposing that Enterococcus be used in place of fecal coliforms and the report therefore includes assessments of Enterococcus data. 3.0 Routine Monitoring Program The TMDL requires the County and watershed cities to implement a routine monitoring program to determine attainment of TMDL targets in Newport Bay. The current monitoring program implemented by the Orange County Health Care Agency (HCA) satisfies the requirements (sampling locations shown in Figure 1). Station data from weekly monitoring for bacteria are provided in Appendix A 5. In conducting the monitoring program and subsequent data analysis, the following should be noted: Two stations in the Upper Bay often could not be sampled weekly due to either low tide or lack of safe access (Vaughn s Launch (23) and Ski Zone (24)). Grand Canal could not be sampled from November 2016 through March 2017 because of bridge construction activities. Lido Yacht Club could not be sampled from the week of February 12 through March 2017 because the area was fenced off. 10th Street Beach could not be sampled on several days (February 21, March 7, and March 21, 2017) because of hotel construction. 43rd Street Beach was not sampled on March 21, 2017 because the sampling area was covered with algae mats. When calculating geomeans for fecal coliform data (<9 CFU/100 ml or <10 CFU/100 ml), the detection limit values were used. When calculating geomeans for Enterococcus data (<9 CFU/100 ml or <10 CFU/100 ml), a value of 3.7 CFU/100 ml was substituted for the detection limit values based on an analysis of over 3000 samples collected by the City of Los Angeles Environmental Monitoring Division from seven coastal beach sites between January 1996 and October Codified in the Code of Federal Regulations (40 CFR (c) (1)) 4 Recreational Water Quality Criteria (EPA Office of Water 820-F p 18) 5 HCA weekly monitoring data is available as an electronic file on-line at 6 Jurisdictional Groups, Reconsideration Elements for Bacteria TMDLs, July pp 2

7 Data were also collected from watershed freshwater inputs to Newport Bay (San Diego Creek, Santa Ana-Delhi Channel, Back Bay Drive Drain, and Big Canyon Wash) but these were not included in any assessments. Samples were not collected during the summer season at Back Bay Drive Drain due to a dry weather diversion to the sanitary sewer. 4.0 Analysis of Water Contact Recreation (REC 1) and Shellfish Harvesting (SHEL) Numeric Targets Consistent with the TMDL, the analysis in this section does not distinguish between wet 7 and dry weather. In this regard, the Newport Bay TMDL targets are written differently than more recent TMDLs throughout most of coastal Southern California, where dry and wet weather periods are typically regulated differently and a set number of allowances are provided based on data from undeveloped reference beaches. Wet weather events have a significant impact on bacterial water quality and consistently attaining standards under these conditions may not be feasible 8. Annual rainfall influencing Newport Bay is measured by two gauges located at either end of the Bay in Costa Mesa (OCPW #165) and Corona del Mar (OCPW #169). With respect to rainfall patterns, Figure 2 shows declining annual rainfall in the period since TMDL adoption and more noticeably in the recent 6-year drought-influenced period. Average data for Stations #165 and #169 show the following: The 57 year long term annual average from 1960 is inches The 15-year post-tmdl adoption annual average is inches The annual average from the last six years is 8.1 inches 4.1 REC-1 TMDL Fecal Coliform Monitoring Results Tables 1a and 1b show the monthly assessment of fecal coliform data for REC-1. Lower Newport Bay met the geomean target (200 CFU/100 ml) every month in the current reporting year. The overall numeric target (both numeric targets) was met eleven out of twelve months. In October 2016, more than 10% of samples were above 400 CFU/100mL due to a wet-weather influenced sampling on October 25, Upper Newport Bay met the geomean target (200 CFU/100 ml) every month in the current reporting year. The overall numeric target was met nine out of twelve months. In October, 7 Wet weather is the day of at least 0.1 inches of rainfall and the three days following. 8 Pathogens in Urban Stormwater Systems (August 2014, Urban Water Resources Research Council, Pathogens in Wet Weather Flows Technical Committee, Environmental and Water Resources Institute, American Society of Civil Engineers, p xvii) 3

8 November, and January, more than 10% of samples were above 400 CFU/100mL due to wet weather influenced samplings on October 18, October 25, November 21, and January REC-1 Enterococcus Monitoring Results Tables 2a and 2b show the monthly assessment of Enterococcus data for REC-1. Lower Newport Bay met the numeric geomean target (35 CFU/100 ml) every month in the current reporting year. Upper Newport Bay met the numeric geomean target (35 CFU/100 ml) eight out of twelve months in the current reporting year. In October, November, and January, the geomean was elevated due to sampling in wet weather on October 18 and 25, November 21 and November 29, January 24, and February 21 and SHEL Fecal Coliform Numeric Target Tables 3a and 3b show the monthly assessment of fecal coliform data for SHEL. Lower Newport Bay met the median target (14 MPN/100 ml) every month. The overall numeric target was met five out of twelve months. In June, August, and December, more than 10% of samples were above 43 CFU/100mL due to unknown causes. There was heavy rainfall in December, but sampling occurred outside of the 72-hour wet weather period used for wet weather designation. In October and November 2016, and in January and February 2017, more than 10% of samples were above 43 CFU/100mL due to wet weather (see table footnotes for station information). Upper Newport Bay met the overall numeric target seven out of twelve months. In May, July, September, December, January, and February, more than 10% of samples were above 43 CFU/100mL due to wet weather (see table footnotes for station information). The median target in the Upper Bay was not achieved in October and November 2016, and January and February 2017, which all had over half an inch of total monthly rainfall. There was heavy rainfall in December, but sampling occurred outside of the 72 hour wet weather period. 4

9 4.4 Assessment by station for management purposes In Figures 3 to 6, fecal coliform and Enterococcus data are presented geospatially to provide greater clarity in identifying areas for potential management actions. Figure 3 shows for each site, the number of monthly fecal coliform geomean concentrations that were greater than the target of 200 CFU/100mL. Figure 4 shows the percentage of annual Enterococcus concentrations greater than 400 CFU/100mL at each site. Figures 5 and 6 show the number of months when the Enterococcus geomean was greater than the target of 35 CFU/100mL, and when the annual percentage of samples was greater than 104 CFU/100 ml, respectively. The station-by-station assessment largely points to areas in the Bay already being targeted for diversion BMPs (see Appendix C) including the Arches Drain and tributaries to Upper Newport Bay. There were also elevated Enterococcus levels during wet months at many stations (e.g. Northstar Beach, Newport Dunes West), elevated fecal coliforms and Enterococcus for unknown reasons during summer months at Abalone Avenue Beach, and elevated Enterococcus for unknown reasons in the Ski Zone. 5.0 Impairment Analysis An impairment analysis for REC-1 beneficial use for data was presented in the 2016 Newport Bay Fecal Coliform TMDL Annual Data Report for both fecal coliform and Enterococcus using the State Listing/Delisting Policy for Upper and Lower Bay. The impairment analysis was not updated with data from April 1, 2016 through March 31, The results of these data analyses show that the Upper and Lower Newport Bay would be suitable for delisting for fecal coliform for REC-1 beneficial use, and that Upper and Lower Bay are not impaired for Enterococcus based on the Great Lakes Rule. 6.0 Long Term Trends Figure 7 shows the Bay-wide annual fecal coliform geomeans for the period of using dry weather data only, consistent with the criteria 9 underpinning the Great Lakes Rule. Analysis of dry weather data eliminates the influence of storm influenced samples and the potential bias caused by the recent drought. Figure 8 shows the Bay-wide annual fecal coliform geomeans for the period using dry and wet weather data combined. Statistical analysis in both cases suggests that water quality improved significantly subsequent to implementation of IRWD s Wetlands Treatment System (San Joaquin Marsh) in The Mann-Whitney Rank sum test indicates the median from April 1, 2001 to March 31, 2005 is significantly greater (p<0.001) than the median for data collected April 1, 2005 to March 31, Ambient Water Quality Criteria for Bacteria 1986 (EPA A440/ p 9) 5

10 Individual station trend plots of annual geomeans for fecal coliform and Enterococcus (dry and wet weather data combined) are included in Appendix B. 7.0 Summary Multi-year implementation of management actions (Appendix C) has resulted in an overall downward trend in Bay-wide fecal coliform levels (Figure 7) and at most stations (Appendix B) data show the following progress: Both Upper and Lower Newport Bay met the fecal coliform REC-1 numeric targets nine and eleven months, respectively, out of twelve months in the current reporting year. Lower Newport Bay met the Enterococcus REC-1 numeric target every month in the current reporting year. Upper Newport Bay met the Enterococcus REC-1 numeric target eight out of twelve months. Upper and Lower Newport Bay met targets every month from April through September. Several individual stations with elevated bacteria levels corresponded to areas with planned future diversions of local storm drain inputs. BMPs implemented and BMPs planned for the future are described in Newport Bay Fecal Coliform TMDL 2016 Summary of Management Actions (Submitted September 1, 2016 with the 2016 Newport Bay Fecal Coliform TMDL Annual Data Report). The data show the following challenges: Wet weather influences on indicator concentrations continue as the most prevalent issue The current TMDL does not include any of the allowances for natural conditions and wet weather provided in other TMDLs in southern California. Weather has a particularly significant impact on the SHEL target, 43 CFU/100 ml; almost any amount of rainfall will generate runoff that elevates concentrations of fecal coliform above this target. 6

11 TABLES 7

12 8

13 Table 1a. REC-1 fecal coliform TMDL numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Lower Newport Bay Month Number of samples Geomean (CFU/100 ml) 1 Percentage of samples greater than 400 CFU/100 ml 2 Both numeric targets met 3 April Yes May Yes June Yes July Yes August Yes September Yes October No 4 November Yes December Yes January Yes February Yes March Yes Annual geomean of all samples Geomean target is 200 CFU/100 ml 2 Target for percentage of samples greater than 400 CFU/100 ML allows not more than 10 percent to be greater than 400 CFU/100 ml 3 Both geomean and percentage targets must be met to receive a Yes 4 Ruby Avenue (3), Bayshore Beach (4), Via Genoa Beach (5), 43 rd Street Beach (6), 33 rd Street Beach (8), Rhine Channel (9), 19 th Street Beach (10), 15 th Street Beach (11), 10 th Street Beach (12), Alvarado Bay Island Beach (13), Garnet Avenue Beach (28), Lido Yacht Club (29), and Newport Blvd Beach (32) had fecal coliform greater than 400 CFU/100 ml on October Geomean is for entire year of data 9

14 Table 1b. REC-1 fecal coliform TMDL numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Upper Newport Bay Month Number of samples Geomean (CFU/100 ml) 1 Percentage of samples greater than 400 CFU/100 ml 2 Both numeric targets met 3 April Yes May Yes June Yes July Yes August Yes September Yes October No 4 November No 5 December Yes January No 6 February Yes March Yes Annual geomean of all samples Geomean target is 200 CFU/100 ml 2 Target for percentage of samples greater than 400 CFU/100 ML allows not more than 10 percent to be greater than 400 CFU/100 ml 3 Both geomean and percentage targets must be met to receive a Yes 4 Newport Dunes North (21) and Newport Dunes West (20) had fecal coliform greater than 400 CFU/100 ml on October 18. All stations on October 25 had fecal coliform greater than 400 CFU/100 ml 5 Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Vaughn s Launch (23), North Star Beach (25), and De Anza Launch (27) had fecal coliform greater than 400 CFU/100 ml on November 21. Newport Dunes Middle (19) and Newport Dunes West (20) had fecal coliform greater than 400 CFU/100 ml on November 29 6 Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), and De Anza Launch (27) had fecal coliform greater than 400 CFU/100 ml on January 24 7 Geomean is for entire year of data 10

15 Table 2a. REC-1 Enterococcus numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Lower Newport Bay Month Number of samples Geomean (CFU/100 ml) 1 Numeric target met 2 April 94 6 Yes May 94 6 Yes June Yes July 90 6 Yes August Yes September 91 8 Yes October Yes November Yes December 93 6 Yes January Yes February Yes March 82 6 Yes Annual geomean of all samples Geomean target is 35 CFU/100 ml 2 Geomean target must be met to receive a Yes 3 Geomean is for entire year of data 11

16 Table 2b. REC-1 Enterococcus numeric targets (April 1, 2016-March 31, 2017) assessment by calendar month for Upper Newport Bay Month Number of samples Geomean (CFU/100 ml) 1 Numeric target met 2 April 29 8 Yes May 25 6 Yes June 31 5 Yes July 24 5 Yes August 30 5 Yes September 26 6 Yes October No 3 November No 4 December Yes January No 5 February No 6 March 24 8 Yes Annual geomean of all samples Geomean target is 35 CFU/100 ml 2 Geomean target must be met to receive a Yes 3 Newport Dunes North (21) and Newport Dunes West (20) had elevated Enterococcus (greater than 35 CFU/100 ml) on October 18. Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), North Star Beach (25), and De Anza Launch (27) had elevated Enterococcus (greater than 35 CFU/100 ml) on October 25 4 Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), Vaughn s Launch (23), North Star Beach (25), and De Anza Launch (27) had elevated Enterococcus (greater than 35 CFU/100 ml) on November 21; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), Vaughn s Launch (23), Ski Zone (24), North Star Beach (25), and De Anza Launch (27) had elevated Enterococcus (greater than 35 CFU/100 ml) on November 29 5 Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), North Star Beach (25), and De Anza Launch (27) had elevated Enterococcus (greater than 35 CFU/100 ml) on January 24 12

17 6 North Star Beach (25) had elevated Enterococcus (greater than 35 CFU/100 ml) on February 15. North Star Beach had elevated Enterococcus (greater than 35 CFU/100 ml) on February 16; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), North Star Beach (25), and De Anza Launch (27) had elevated Enterococcus (greater than 35 CFU/100 ml) on February 21; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), and North Star Beach (25) had elevated Enterococcus (greater than 35 CFU/100 ml) on February Geomean is for entire year of data 13

18 14

19 Table 3a. SHEL fecal coliform TMDL numeric targets (April 1, 2016 March 31, 2017) assessment by calendar month for Lower Newport Bay 1 Month Number of samples Median (CFU/100 ml) 1 Percentage samples greater than 43 CFU/100 ml 2 Both numeric targets met 3 April Yes May Yes June No 4 July Yes August No 5 September Yes October No 6 November No 7 December No 8 January No 9 February No 10 March Yes Annual median of all samples Median target is 14 CFU/100 ml 2 Target for percentage of samples greater than 43 CFU/100 ML allows not more than 10 percent to be greater than 43 CFU/100 ml 3Both median and percentage targets must be met to receive a Yes 4 Alvarado/Bay Island Beach (13) had fecal coliform greater than 43 CFU/100 ml on June 1; N Street Beach (16) and Rocky Point Beach (17) had fecal coliform greater than 43 CFU/100 ml on June 7; Abalone Ave (15) had fecal coliform greater than 43 CFU/100 ml on June 9 and 10; Grand Canal (31) and Abalone Ave (15) had fecal coliform greater than 43 CFU/100 ml on June 15; Abalone Ave (15) also had fecal coliform greater than 43 CFU/100 ml on June 17, June 21, June 23, June 28, and June 30; Grand Canal (31) also had fecal coliform greater than 43 CFU/100 ml on June 21; Newport Blvd Bridge (32) had fecal coliform greater than 43 CFU/100 ml on June 14 and June

20 5 15 th Street Beach (11) had fecal coliform greater than 43 CFU/100 ml on August 2, and August 16. Abalone Ave Beach (15) had fecal coliform greater than 43 CFU/100 ml on August 2, August 5 and 6, August 16, August 23 and August 26. Garnet Ave Beach (28) had fecal coliform greater than 43 CFU/100 ml on August 2. Bayside Drive Beach (30) had fecal coliform greater than 43 CFU/100 ml on August 9. Newport Blvd Bridge (32) had fecal coliform greater than 43 CFU/100 ml on August 2 6 Garnet Ave Beach (28) had fecal coliform greater than 43 CFU/100 ml on October 12; Abalone Ave Beach (15) had fecal coliform greater than 43 CFU/100 ml on October 25. All stations, except for Promontory Point (26), N Street Beach (16), Rocky Point Beach (17), and Bayside Dr Beach (30), on October 25 had fecal coliform greater than 43 CFU/100 ml. 7 Park Avenue Beach (1), 10 th St Beach (12), Alvarado/Bay Isle Beach (13), Sapphire Ave Beach (14), Bayside Dr Beach (30), and Newport Blvd Bridge (32) had fecal coliform greater than 43 CFU/100 ml on November 15; Park Avenue Beach (1), Onyx Avenue Beach (2), Ruby Avenue Beach (3), Bayshore Beach (4), Via Genoa Beach (5), 43 rd St Beach (6), 38 th St Beach (7), 33 rd St Beach (8), Rhine Channel (9), Alvarado/Bay Isle Beach (13), Abalone Ave Beach (15), Rocky Point Beach (17), Promontory Point (26), Garnet Ave Beach (28), Bayside Dr Beach (30), and Newport Blvd Bridge (32) had fecal coliform greater than 43 CFU/100 ml on November 21; Ruby Avenue Beach (3), 19 th St Beach (10), Alvarado/Bay Isle Beach (13), Garnet Ave Beach (28), and Newport Blvd Bridge (32) had fecal coliform greater than 43 CFU/100 ml on November Bayshore Beach (4) had fecal coliform greater than 43 CFU/100 ml on December 6; Onyx Ave (2), Via Genoa Beach (5), 10 th St Beach (12), and Lido Yacht Club (29) had had fecal coliform greater than 43 CFU/100 ml on December 14; Lido Yacht Club (29) had had fecal coliform greater than 43 CFU/100 ml on December 15; Ruby Avenue Beach (3), Via Genoa Beach (5), and 19 th St Beach (10) had fecal coliform greater than 43 CFU/100 ml on December 20; 33 rd St Beach (8) had fecal coliform greater than 43 CFU/100 ml on December 28 and December All stations, except for Park Avenue Beach (1), Onyx Avenue Beach (2), Bayshore Dr Beach (4), Sapphire Ave Beach (14), Rocky Point Beach (17), Promontory Beach (26), and Bayside Dr Beach (30), had fecal coliform greater than 43 CFU/100 ml on January 24; Lido Yacht Club (29) had fecal coliform greater than 43 CFU/100 ml on January Ruby Ave Beach (3), Bayshore Beach (4), Alvarado/Bay Isle Beach (13), Sapphire Ave Beach (14), Abalone Ave Beach (15), and Newport Blvd Bridge (32) had fecal coliform levels greater than 43 CFU/100 ml on February 21; Onyx Ave Beach (2), 10 th St Beach (12), Sapphire Ave Beach (14), Abalone Ave Beach (15), and Newport Blvd Bridge (32) had fecal coliform greater than 43 CFU/100 ml on February Median is for the entire year of data 16

21 Table 3b. SHEL fecal coliform TMDL numeric targets (April 1, 2016 March 31, 2017) assessment by calendar month for Upper Newport Bay Month Number of samples Median (CFU/100 ml) 1 Percentage samples greater than 43 CFU/100 ml 2 Both numeric targets met 3 April Yes May Yes June Yes July Yes August Yes September No 4 October No 5 November No 6 December Yes January No 7 February No 8 March Yes Annual median of all samples Median target is 14 CFU/100 ml 2 Target for percentage of samples greater than 43 CFU/100 ML allows not more than 10 percent to be greater than 43 CFU/100 ml 3Both median and percentage targets must be met to receive a Yes 4 Newport Dunes North (21) had fecal coliform greater than 43 CFU/100 ml on September 13; Newport Dunes West (20) had fecal coliform greater than 43 CFU/100 ml on September 20; Newport Dunes - East (18) had fecal coliform greater than 43 CFU/100 ml on September

22 5 Newport Dunes North (21), Newport Dunes West (20), and North Star Beach (25) on October 18 had fecal coliform greater than 43 CFU/100 ml. Newport Dunes East (18), Newpot Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), North Star Beach (25), and De Anza Launch (27) had fecal coliform greater than 43 CFU/100 ml on October North Star Beach (25) had fecal coliform greater than 43 CFU/100 ml on November 8; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), Vaughn s Launch (23), North Star Beach (25), and De Anza Launch (27) had fecal coliform greater than 43 CFU/100 ml on November 21; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), Vaughn s Launch (23), Ski Zone (24), North Star Beach (25), and De Anza Launch (27) had fecal coliform greater than 43 CFU/100 ml on November Newport Dunes West () on January 17 had fecal coliform greater than 43 CFU/100 ml; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), North Star Beach (25), and De Anza Launch (27) had fecal coliform greater than 43 CFU/100 ml on January 24; Newport Dunes North (21) and Newport Dunes West (20) had fecal coliform greater than 43 CFU/100 ml on January Newport Dunes North (21) had fecal coliform greater than 43 CFU/100 ml on February 15; Newport Dunes East (18), Newport Dunes Middle (19), Newport Dunes North (21), Newport Dunes West (20), North Star Beach (25), and De Anza Launch (27) had fecal coliform greater than 43 CFU/100 ml on February 21; Newport Dunes North (21) and Newport Dunes West (20) had fecal coliform greater than 43 CFU/100 ml on February Median is for entire year of data 18

23 FIGURES 19

24 20

25 Figure 1. Bacteriological Water Sampling Stations in Newport Bay 21

26 Figure 2. Rainfall totals by monitoring year at the Costa Mesa (OCPW #165) and Corona del Mar (OCPW #169) gauges Note that OCPW s hydrographic monitoring year spans July 1-June 30. The graphic above reflects stats relative to the April 1 March 31 Fecal Coliform TMDL reporting periods. 22

27 Figure 3. Number of months the fecal coliform geomean was greater than 200 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) 23

28 Figure 4. Percentage of fecal coliform samples greater than 400 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) 24

29 Figure 5. Number of months the Enterococcus geomean was greater than 35 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) 25

30 Figure 6. Percentage of Enterococcus samples greater than 104 CFU/100 ml (April 1, 2016 March 31, 2017) by station (for management purposes only) 26

31 Figure 7. Upper and Lower Newport Bay annual fecal coliform geomeans for ,2 - dry weather data only 1 Analysis of dry weather data eliminates the potential influence of storm influenced samples and the recent drought. 2 The geometric mean water quality standard for fecal coliform is 200 CFU/100 ml. Figure 8. Upper and Lower Newport Bay annual fecal coliform geomean for dry and wet weather data combined 2 The geometric mean water quality standard for fecal coliform is 200 CFU/100 ml. 27

32

33 APPENDICES

34

35 APPENDIX A Monitoring data

36

37 The following tables summarize bacteriological monitoring data at Lower and Upper Newport Bay stations, and at tributaries from April 2016 through March Data by station are organized sequentially from the outlet of Lower Bay to Upper Bay. Samples were collected by County of Orange, Health Care Agency staff and analyzed at the Health Care Agency microbiology lab at Shellmaker Island in Newport Beach. These data are also available on-line at Orange County Health Care Agency, Ocean Water Protection Program: Table Key. Definition of formatting and notations in the following tables Sampling results influenced by rainfall (within 72 hours of 0.1 inch of rain) Additional sampling conducted often in response to elevated results (may not include all stations) TC = Total coliforms FC = Fecal coliforms ENT = Enterococcus NS = Not sampled A-1

38 Rocky Point Beach (17) N Street Beach (16) Bayside Dr Beach (30) TC FC ENT TC FC ENT TC FC ENT 4/5/2016 >= 1,540 1,070 < 9 9 < 9 < 9 >= 30 < 9 < 9 4/7/2016 < 9 < 9 < 9 NS NS NS NS NS NS 4/12/2016 < 9 < < /19/2016 >= 9 < 9 20 < 9 9 < 9 9 < 9 < 9 4/26/2016 < 9 < 9 < < 9 >= /3/2016 >= 9 < 9 < 9 < 9 < 9 < 9 >= /9/2016 NS NS NS NS NS NS 30 < 9 9 5/10/2016 >= 9 < 9 < 9 < 9 < 9 < 9 NS NS NS 5/17/2016 >= 9 < 9 < 9 >= 9 < 9 < 9 >= /18/2016 NS NS NS NS NS NS >= 100 < 9 9 5/24/2016 >= 20 9 < 9 < 9 < 9 < 9 >= 9 < 9 9 6/1/2016 >= 9 < 9 < 9 < 9 < 9 < 9 >= 100 < 9 9 6/7/2016 >= < 9 >= 30 < 9 9 6/14/2016 >= 9 9 < 9 < 9 < 9 < 9 >= /21/2016 >= 9 < 9 < 9 < 9 9 < 9 >= /28/ < 9 < 9 < 9 < 9 < 9 >= 9 < /6/2016 >= < 9 < 9 < 9 >= 9 < 9 < 9 7/12/ < 9 < 9 < < 9 7/19/2016 >= 9 < 9 9 < 9 < 9 9 >= /26/2016 >= 9 < 9 < 9 40 < 9 9 >= /2/2016 >= < 9 < 9 >= /9/ < 9 < < 9 >= /16/2016 >= < 9 < 9 < < 9 8/23/ < 9 < 9 < 9 < 9 < < 9 8/30/2016 < 9 < 9 < 9 20 < 9 < 9 >= /7/2016 < 9 < 9 9 >= /13/ < < 9 < 9 >= /15/2016 NS NS NS NS NS NS 9 < /20/ < 9 < 9 < 9 < 9 < 9 >= /22/2016 NS NS NS NS NS NS >= /27/2016 < 9 9 < 9 < 9 < 9 < 9 >= /4/ < 9 20 < 9 < 9 < < 9 10/12/ < 9 30 < 9 < 9 < 9 < 9 < 9 10/14/2016 NS NS NS NS NS NS >= 9 9 < 9 10/18/ < 9 9 < 9 < 9 < 9 >= /25/2016 >= 2, >= 1, >= < 9 11/1/ < 9 < 9 20 < < /8/2016 < 9 < 9 < 9 9 < < 9 11/15/2016 < 9 9 < 9 9 < 9 9 >= /21/2016 >= >= 4, ,300 11/29/ < 9 9 >= 160 < 9 < 9 >= 310 < /6/2016 < 9 < < < /14/ < 9 9 < 9 9 < 9 9 < /20/2016 >= >= < 9 >= 270 < /28/ < 9 < 9 50 < 9 < < 9 < 9 1/4/ < 9 < 9 9 < 9 < 9 30 < 9 < 9 1/17/ < < 9 30 < /24/2017 >= 3,800 >= 9 1,360 >= 7,100 >= 100 1,370 >= 5,500 >= 9 1,050 1/31/ < 9 < 9 < 9 < 9 < 9 60 < 9 < 9 2/15/2017 < 9 < < 9 < /21/2017 >= >= >= /27/ < 9 < 9 9 < 9 < /7/ < 9 < 9 < 9 < 9 < /14/2017 < 9 < 9 < 9 < 9 < 9 < 9 40 < /21/2017 < 9 < 9 < 9 30 < 9 < /28/ < 9 9 < 9 9 < < 9 A-2

39 Ruby Avenue Beach (3) Promontory Point Channel (26) TC FC ENT TC FC Onyx Avenue Beach (2) Park Avenue Beach (1) ENT TC FC ENT TC FC 4/5/2016 < 9 < 9 30 < 9 < 9 < < < 9 4/12/2016 < 9 < 9 < 9 60 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 4/19/ < 9 < 9 < 9 < 9 9 < 9 < 9 < 9 < 9 9 4/26/2016 < 9 < 9 < 9 < 9 < < 9 < 9 < 9 < 9 5/3/ < 9 < 9 < 9 < 9 20 < 9 < < 9 5/9/ < 9 9 NS NS NS NS NS NS NS NS NS 5/10/2016 NS NS NS < 9 < 9 < < 9 9 5/17/2016 >= 20 < < 9 9 >= 9 < 9 < 9 >= 9 9 < 9 5/24/2016 < 9 < 9 < 9 < 9 < < 9 < 9 < 9 < 9 9 6/1/2016 < 9 < < 9 < 9 >= >= 9 < 9 < 9 6/7/ < 9 < 9 < 9 < 9 < 9 < 9 9 < 9 9 < 9 < 9 6/14/2016 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 NS NS NS 6/15/2016 NS NS NS NS NS NS NS NS NS < 9 < 9 < 9 6/21/ < 9 < 9 < 9 < 9 70 < 9 < 9 20 < 9 < 9 6/28/2016 < 9 < 9 9 < 9 < 9 < 9 >= 9 < 9 < 9 9 < 9 < 9 7/6/ < 9 < 9 < 9 < 9 < 9 >= < /12/2016 < 9 < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 < 9 9 < 9 7/19/ < 9 < 9 < 9 20 < 9 < 9 9 < 9 < 9 7/26/2016 >= 9 < 9 30 < 9 < 9 9 < 9 < 9 < 9 9 < 9 < 9 8/2/2016 >= 30 9 < 9 < 9 9 < 9 >= 20 < 9 < 9 >= 9 9 < 9 8/9/2016 < 9 < 9 < 9 < 9 < 9 9 >= < 9 < 9 8/16/ < 9 < 9 < 9 < 9 < < 9 9 < 9 < 9 8/23/ < 9 < 9 < 9 < < 9 < 9 9 < 9 8/30/ < < 9 < 9 20 < < 9 < 9 9/7/2016 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < < 9 9 9/13/2016 >= 30 9 < 9 20 < 9 < < 9 9 < 9 < 9 9/20/ < 9 < 9 < 9 < 9 < < 9 < 9 9/27/ < 9 < 9 < 9 < < 9 < < 9 10/4/ < 9 >= 9 < 9 < 9 9 < 9 < 9 30 < 9 < 9 10/12/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 20 < 9 < 9 10/18/ < 9 < 9 < 9 < 9 50 < 9 20 < 9 < 9 < 9 10/25/2016 >= 12,200 >= < 9 9 >= 6,300 >= >= 2, /1/ < < 9 40 < 9 < 9 11/8/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 30 < 9 < 9 11/15/ < 9 < /17/ < 9 NS NS NS 9 < NS NS NS 11/21/2016 >= >= , , /29/2016 >= < 9 < 9 >= 1, , < 9 12/1/2016 NS NS NS NS NS NS 30 < 9 < 9 NS NS NS 12/6/2016 < 9 < 9 < 9 < 9 < 9 < < 9 < 9 < /14/ < 9 < 9 < < 9 < /20/ < 9 < 9 >= 140 < 9 < 9 >= 130 < /28/2016 >= < 9 < 9 >= /4/ < 9 < < < 9 < 9 30 < 9 < 9 1/17/ < 9 < 9 < < < 9 1/24/2017 >= 5,100 >= >= 8,000 >= >= 5,000 >= >= 4,000 >= /31/ < 9 < 9 40 < 9 < 9 < 9 < /15/2017 < 9 < 9 < 9 < 9 < 9 < < 9 20 < 9 9 2/21/2017 >= < 9 < 9 >= >= < 9 2/27/ < 9 < 9 1,900 1, < /7/2017 < 9 < 9 < 9 < 9 < 9 < 9 30 < < 9 < 9 3/14/ < 9 40 < 9 < 9 < 9 >= 20 < 9 < 9 < 9 < 9 9 3/21/ < 9 < < 9 9 < /28/ < 9 < 9 9 < 9 < 9 20 < 9 < 9 < 9 < 9 < 9 ENT A-3

40 Garnet Avenue Beach (28) Sapphire Avenue Beach (14) TC FC ENT TC FC Abalone Avenue Beach (15) Grand Canal (31) ENT TC FC ENT TC FC 4/5/2016 < 9 < 9 < 9 >= 9 < 9 < 9 >= ,700 < 9 < 9 < 9 4/7/2016 NS NS NS NS NS NS >= < 9 4/12/2016 >= >= 40 40< 9 < 9 < < 9 4/19/ < 9 < 9 30 < < 9 9 < 9 9 4/26/2016 >= 9 < < < 9 < 9 9 5/3/ < 9 9 >= 40 < 9 < 9 40 < 9 < 9 50 < /9/2016 >= < 9 40 < 9 < 9 NS NS NS < 9 5/10/2016 NS NS NS NS NS NS < 9 NS NS NS 5/17/2016 >= >= >= NS NS NS 5/24/ < 9 < 9 >= 9 < 9 < 9 < 9 < 9 9 < 9 < 9 < 9 6/1/ < 9 < 9 >= >= >= < 9 6/7/2016 >= < 9 >= 1,340 1, >= 40 9 < 9 6/9/2016 NS NS NS NS NS NS 4,200 3, >= 9 < 9 < 9 6/10/2016 NS NS NS NS NS NS >= NS NS NS 6/14/ < 9 < 9 < 9 < 9 9 NS NS NS 20 9 < 9 6/15/2016 NS NS NS NS NS NS >= < 9 >= /17/2016 NS NS NS NS NS NS >= < 9 6/21/ < 9 < 9 >= < 9 >= 1,090 1, < 9 6/23/2016 NS NS NS NS NS NS >= 470 2,900 2,000 NS NS NS 6/28/2016 >= 40 9 < 9 >= >= < 9 6/30/2016 NS NS NS NS NS NS >= /6/2016 >= >= 20 < 9 < 9 3,700 4, /12/2016 >= 1,070 9 < 9 < 9 < 9 < 9 >= < 9 9 < 9 7/19/2016 >= 9 20 < 9 >= 9 < 9 < 9 >= < /26/2016 < 9 9 < 9 >= 20 9 < 9 >= >= 20,000 >= 20,000 1,350 7/28/2016 NS NS NS NS NS NS >= < 9 8/2/2016 >= >= 20 9 < 9 >= NS NS NS 8/5/2016 NS NS NS NS NS NS >= < 9 8/6/2016 NS NS NS NS NS NS >= < 9 < 9 8/9/2016 >= 9 < /11/2016 NS NS NS NS NS NS < >= < 9 8/16/ < 9 < 9 9 < 9 < < 9 < 9 8/23/ < 9 < ,500 1, NS NS NS 8/25/2016 NS NS NS NS NS NS >= < 9 40 < /27/2016 NS NS NS NS NS NS 9 20 < /30/ < 9 < 9 < 9 < 9 < < < 9 9/7/ < 9 < /13/2016 >= >= < 9 9 < 9 < 9 < 9 < 9 9/20/2016 >= 120 < 9 30 >= < < 9 9/27/2016 >= 40 < 9 < 9 >= 20 < 9 < 9 < 9 < 9 < 9 40 < /4/2016 < 9 < < 9 < 9 >= < /12/ < 9 < < 9 < 9 < 9 < 9 10/18/ < 9 < 9 >= >= < 9 10/25/2016 >= 14,300 >= 1, >= 4,700 >= >= 1, NS NS NS 11/1/ < 9 9 >= 1,680 1,400 < /3/2016 NS NS NS >= NS NS NS 9 20 < 9 11/8/ < 9 < 9 9 < 9 < < < 9 11/15/2016 < 9 < , < 9 < 9 < 9 11/17/2016 NS NS NS >= 9 9 < 9 NS NS NS NS NS NS 11/19/2016 NS NS NS 9 < 9 < 9 NS NS NS NS NS NS 11/21/2016 >= 5, NS NS NS 11/29/2016 1, < 9 >= >= < 9 NS NS NS 12/6/ < 9 < 9 30 < 9 < 9 9 < 9 < 9 NS NS NS 12/14/ < 9 < < 9 < 9 < 9 NS NS NS 12/20/ < 9 70 < 9 < 9 >= NS NS NS 12/28/2016 >= 1,210 < < 9 9 >= 220 < 9 < 9 NS NS NS 1/4/ < 9 < < < 9 NS NS NS 1/17/ < 9 < 9 20 < < 9 NS NS NS 1/24/2017 >= 12,900 >= 210 2,700 >= 5,500 >= >= 5,700 >= NS NS NS 1/31/2017 >= 290 < < < 9 NS NS NS 2/15/2017 >= 190 < 9 < < 9 NS NS NS 2/21/2017 >= 2, >= >= NS NS NS 2/27/ < 9 < 9 4, NS NS NS 3/7/ < 9 < 9 < 9 9 < < 9 80 NS NS NS 3/14/ < 9 < 9 9 < 9 < 9 9 < 9 < 9 NS NS NS 3/21/2017 < 9 < 9 < 9 >= 1, , NS NS NS 3/23/2017 NS NS NS NS NS NS 9 < 9 9 NS NS NS 3/28/ < 9 < 9 < 9 < 9 < < 9 NS NS NS ENT A-4

41 Lido Yacht Club (29) 10th St Beach (12) Alvarado/ Bay Isle Beach (13) TC FC ENT TC FC ENT TC FC ENT 4/5/2016 >= 30 9 < 9 < 9 < 9 < < 9 4/12/ < 9 < 9 < 9 9 < 9 < 9 4/19/2016 >= 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 4/26/2016 >= 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 5/3/ < 9 < 9 < 9 < 9 < 9 < 9 5/5/2016 < 9 < 9 < 9 NS NS NS NS NS NS 5/9/2016 NS NS NS NS NS NS >= < 9 5/10/ < 9 < 9 < 9 < 9 < 9 NS NS NS 5/17/ < 9 < 9 < < 9 < 9 5/24/2016 < 9 < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 6/1/ < 9 < 9 < 9 < 9 < 9 >= 1,490 1,260 < 9 6/3/2016 NS NS NS NS NS NS 9 < 9 < 9 6/7/ < 9 < 9 9 < 9 < 9 < 9 9 < 9 6/14/ < 9 < 9 < 9 < 9 < 9 < 9 < /21/ < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 6/28/2016 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 9 7/6/2016 < 9 < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 7/12/ < 9 < 9 < 9 < 9 < 9 < 9 7/19/2016 >= 9 20 < 9 < 9 < 9 < 9 >= 9 < 9 < 9 7/26/ < 9 < 9 20 < 9 < 9 9 < 9 < 9 8/2/2016 >= 9 < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 8/9/2016 >= 9 < 9 9 < 9 < 9 < 9 < 9 < 9 < 9 8/16/2016 < 9 < 9 < 9 < 9 < 9 < 9 >= 9 < 9 < 9 8/23/2016 >= 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 8/30/2016 >= < 9 30 < 9 < 9 40 < 9 < 9 9/7/ < 9 < 9 < /13/2016 >= 9 < 9 < 9 < 9 < 9 < 9 >= /20/ < 9 < 9 9 < 9 < 9 < 9 9/27/2016 < 9 < 9 < 9 9 < 9 < 9 9 < 9 < 9 10/4/2016 < 9 < 9 < 9 < 9 < 9 < < 9 10/12/ < 9 40 < 9 < < 9 10/18/2016 >= 550 < 9 < < < 9 10/25/2016 >= 20,000 4,700 2,900 >= 20,000 5,100 1,180 >= 20,000 2, /1/2016 < 9 < 9 < 9 20 < 9 < 9 40 < 9 < 9 11/8/2016 < 9 < 9 < 9 >= 9 < 9 < 9 20 < 9 < 9 11/15/ < 9 < >= ,180 11/17/2016 NS NS NS NS NS NS 9 9 < 9 11/21/ < 9 30 >= 9, /29/2016 >= < 9 >= 1, , ,700 12/6/ < 9 < 9 < 9 < 9 < 9 30 < /14/2016 >= < 9 40 < /15/2016 >= NS NS NS NS NS NS 12/20/ < 9 < 9 60 < 9 < 9 50 < /28/ < 9 < 9 >= 90 9 < 9 >= 200 < 9 < 9 1/4/ < < 9 < 9 1/17/ < 9 < 9 9 < 9 < 9 9 < 9 < 9 1/24/2017 >= 7,000 >= >= 4, >= 9,500 >= 190 2,000 1/31/ < 9 9 < < 9 9 2/15/2017 NS NS NS < 9 < 9 < 9 < 9 < 9 < 9 2/21/2017 NS NS NS NS NS NS >= 2, /27/2017 NS NS NS /7/2017 NS NS NS NS NS NS 20 < 9 9 3/14/2017 NS NS NS < 9 < 9 < 9 9 < 9 < 9 3/21/2017 NS NS NS NS NS NS /28/2017 NS NS NS < 9 9 < 9 < 9 A-5

42 Rhine Channel (9) 19th Street Beach (10) 15th Street Beach (11) TC FC ENT TC FC ENT TC FC ENT 4/5/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 4/12/2016 < 9 < 9 < 9 < 9 < 9 < 9 20 < 9 9 4/19/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 4/26/ < 9 9 < 9 < 9 20 < 9 < 9 5/3/2016 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 5/9/ < 9 < 9 NS NS NS NS NS NS 5/10/2016 NS NS NS < 9 < 9 < < 9 5/17/ < 9 < 9 < 9 < 9 9 < 9 < 9 < 9 5/24/2016 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 6/1/ < 9 < 9 >= 9 < 9 < 9 < 9 < 9 < 9 6/7/ < 9 < 9 30 < 9 < 9 < 9 < 9 < 9 6/14/ < 9 < 9 9 < 9 < < 9 6/21/2016 >= < 9 < 9 < 9 30 < 9 < 9 6/23/ < 9 < 9 NS NS NS NS NS NS 6/28/2016 >= 250 < 9 < 9 >= 9 < 9 < 9 >= 140 < /6/ < 9 < 9 >= 30 < 9 20 < 9 < 9 < 9 7/12/ < 9 >= 9 < 9 < < 9 7/19/2016 < 9 < 9 < 9 >= 9 < 9 < 9 30 < /26/ < 9 < 9 < 9 < 9 < 9 >= /28/2016 NS NS NS NS NS NS >= /2/ < 9 < 9 < 9 < 9 < < 9 8/9/2016 >= 20 < 9 < 9 < 9 < 9 < < 9 8/16/ < 9 < 9 < 9 < 9 < < 9 8/23/ < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 8/30/ < 9 < 9 < 9 < < 9 < 9 9/7/ < 9 9 < 9 < 9 < 9 < /13/2016 >= 690 < < 9 9/15/ < 9 < 9 NS NS NS NS NS NS 9/20/ < 9 < 9 40 < < 9 < 9 9/27/ < 9 < 9 < 9 < 9 < 9 70 < 9 < 9 10/4/ < 9 < 9 9 < 9 < 9 20 < 9 < 9 10/12/ < 9 < < < 9 < 9 10/18/2016 >= 370 < 9 < 9 >= 9 < 9 < 9 20 < 9 < 9 10/25/2016 >= 20,000 2,000 1,280 >= 20,000 3, >= 20,000 2, /1/ < 9 >= 20 < 9 < 9 >= 9 < 9 < 9 11/8/2016 < 9 < 9 < 9 >= 9 < 9 < < 9 11/15/ < 9 < < 9 < 9 11/21/2016 7, >= >= /29/2016 >= , >= 1, /6/ < 9 9 >= 20 < 9 < 9 30 < 9 < 9 12/14/ < 9 < 9 80 < 9 < 9 20 < /20/ < 9 < 9 >= 1, < 9 12/21/2016 NS NS NS >= 280 < 9 < 9 NS NS NS 12/28/2016 >= 280 < 9 < 9 >= >= < 9 1/4/ < < 9 < 9 20 < 9 < 9 1/17/2017 < 9 < 9 < 9 80 < 9 < /24/2017 >= 6,000 >= >= 6, ,180 >= 6,900 >= 130 1,470 1/27/2017 NS NS NS NS NS NS >= < 9 1/31/ < 9 < 9 < 9 < 9 < 9 40 < 9 < 9 2/15/ < < 9 < 9 9 < 9 < 9 2/21/2017 >= < 9 NS NS NS >= 350 < 9 < 9 2/27/ < < /7/2017 < 9 < 9 < 9 9 < 9 < 9 9 < 9 < 9 3/14/2017 < 9 < 9 < 9 20 < < 9 < 9 3/21/2017 >= < 9 < 9 < < 9 9 3/28/2017 < 9 < 9 < 9 9 < 9 < 9 9 < 9 < 9 A-6

43 43rd Street Beach (6) 38th Street Beach (7) 33rd Street Channel (8) TC FC ENT TC FC ENT TC FC ENT 4/5/ < 9 < 9 >= < 9 < 9 4/12/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 4/19/ < 9 < 9 30 < 9 40 < 9 < 9 < 9 4/26/2016 < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 9 5/3/ < 9 < 9 < 9 < 9 < 9 40 < 9 < 9 5/9/ < 9 < 9 NS NS NS >= 130 < /10/2016 NS NS NS 9 9 < 9 NS NS NS 5/17/ < < 9 < 9 40 < 9 < 9 5/24/ < 9 40 < 9 < 9 < 9 < 9 < 9 < 9 6/1/2016 >= 540 < 9 < 9 30 < 9 < 9 < 9 < 9 < 9 6/7/2016 >= 40 < 9 < 9 >= 540 < 9 30 < 9 < 9 < 9 6/14/2016 2,000 < 9 < 9 >= 9 < < 9 9 6/21/2016 >= 9 < 9 < 9 < 9 9 < 9 >= 40 < 9 < 9 6/28/2016 >= 9 < 9 9 >= 9 < 9 < 9 >= 30 < 9 < 9 7/6/2016 >= 1, >= < 9 1, < 9 7/12/ < 9 9 >= 9 < 9 < 9 >= /19/2016 >= 40 < 9 < 9 >= 9 9 < 9 >= 9 < 9 < 9 7/26/ < 9 < 9 >= 9 < 9 < 9 >= 330 >= /2/2016 >= >= 9 < 9 < 9 >= 50 < 9 < 9 8/9/2016 >= >= 9 < 9 < 9 >= 9 < 9 < 9 8/16/2016 >= 140 < 9 9 >= 9 < 9 < 9 >= 70 < 9 < 9 8/23/ < 9 < 9 9 < 9 < 9 40 < 9 < 9 8/30/2016 >= 200 < 9 20 >= < 9 >= /7/ < >= 50 < 9 < 9 9/13/2016 >= < 9 >= /20/2016 < 9 9 < 9 9 < 9 < 9 < 9 < 9 < 9 9/27/2016 >= 30 < 9 < 9 30 < 9 < 9 < 9 < 9 < 9 10/4/ < 9 < 9 < 9 < 9 < 9 < 9 < /12/ < 9 < 9 >= , /14/2016 NS NS NS NS NS NS 9 < 9 < 9 10/18/2016 >= 310 < 9 < 9 >= 200 < 9 < 9 >= 40 < 9 < 9 10/25/2016 >= 9,200 >= 2,000 1,800 >= 7,900 2,100 1,630 >= 7,900 1,100 2,800 11/1/2016 < 9 < 9 < 9 80 < 9 < 9 80 < /8/ < 9 < 9 20 < 9 < 9 >= /15/2016 >= < 9 >= 270 < 9 < < 9 < 9 11/21/2016 >= 17,000 3, >= 14, >= 5,000 >= /29/2016 >= >= < 9 >= /6/2016 < 9 < 9 < 9 9 < 9 < < 9 12/14/ < 9 < 9 < 9 < < 9 < 9 12/20/ < < 9 < 9 20 < 9 < 9 12/28/2016 >= 70 < 9 < 9 40 < 9 < 9 >= 20,000 11, /29/2016 NS NS NS NS NS NS 3, /4/ < 9 < 9 20 < 9 < 9 < 9 < 9 < 9 1/17/ < 9 < 9 < 9 < 9 < < 9 1/24/2017 >= 1, >= 20, >= 12,700 1, /31/ < 9 < 9 30 < 9 < 9 20 < 9 < 9 2/15/ < 9 < 9 < 9 < 9 < 9 < 9 2/21/2017 >= 410 < 9 < 9 >= 150 < 9 < 9 >= 310 < 9 < 9 2/27/ >= < 9 >= 370 < /7/ < 9 20 < 9 < 9 < /14/ < 9 < 9 < 9 < 9 < 9 30 < 9 < 9 3/21/2017 NS NS NS >= 9 < 9 < 9 >= 5, /28/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 A-7

44 Newport Blvd. Bridge (32) Via Genoa Beach (5) Bayshore Beach (4) TC FC ENT TC FC ENT TC FC ENT 4/5/2016 < 9 < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 4/12/2016 >= 6, < 9 < 9 < 9 < 9 < 9 4/19/2016 < 9 < 9 < 9 < 9 < 9 < < 9 4/26/ < 9 < 9 < 9 < 9 9 < 9 < 9 < 9 5/3/ < 9 < 9 < 9 < 9 < 9 < 9 < 9 < 9 5/9/2016 >= NS NS NS NS NS NS 5/10/2016 NS NS NS 20 < 9 < 9 70 < 9 < 9 5/17/ < 9 < 9 9 < 9 < 9 >= 9 < 9 < 9 5/24/ < 9 9 < 9 < 9 < 9 80 < 9 < 9 6/1/2016 NS NS NS < 9 < 9 < 9 < 9 < 9 < 9 6/7/ < 9 < 9 < 9 < 9 < < 9 6/14/2016 >= 2,400 >= < 9 < 9 < 9 >= 9 < 9 9 6/21/ < 9 < 9 < 9 < 9 < 9 >= 50 < 9 < 9 6/28/2016 >= 20, < 9 < 9 < 9 >= 20 9 < 9 7/6/ < 9 < 9 < 9 >= 40 < 9 < 9 7/12/ < 9 < 9 < 9 < 9 >= < 9 7/19/2016 7,000 1,410 < 9 < 9 20 < 9 >= 9 < 9 < 9 7/26/2016 >= < 9 < 9 < 9 < /2/ < 9 9 < < 9 9 8/9/2016 >= 260 < >= 9 < 9 < 9 >= 9 < 9 9 8/16/ < 9 < 9 50 < < 9 < 9 8/23/2016 >= 1, < 9 < 9 < 9 20 < 9 < 9 8/30/ < 9 < 9 9 < 9 20 < 9 < 9 9/7/2016 2, < 9 < /13/ < 9 < 9 >= 9 < 9 < 9 9 < 9 < 9 9/20/ < 9 9 < 9 < 9 < < 9 9/27/ < 9 < 9 < 9 20 < 9 < 9 10/4/ < 9 < 9 < 9 < 9 < 9 40 < 9 < 9 10/12/ < 9 < 9 50 < 9 < 9 10/18/2016 >= < < < /25/2016 >= 11,900 2, >= 11,400 1, >= 20,000 >= 20,000 2,900 11/1/ < 9 < < 9 40 < 9 < 9 11/8/ < 9 < 9 < 9 < /15/2016 5, < /21/2016 >= 20,000 1, , >= 20,000 1,900 2,300 11/29/2016 >= 6, >= 1, < 9 2, /6/ < 9 9 < 9 9 < 9 >= /14/ < 9 < < 9 < 9 12/20/2016 >= 580 < < 9 >= 250 < 9 < 9 12/21/2016 NS NS NS >= 250 < 9 < 9 NS NS NS 12/28/ < 9 < 9 >= 140 < 9 < 9 >= < 9 1/4/2017 >= 40 < < 9 20 < 9 9 1/17/ < 9 9 < 9 < < 9 9 1/24/2017 >= 16,500 >= >= 7,100 >= 210 1,240 >= 5,800 >= 30 1,730 1/31/2017 >= 250 < 9 < < 9 >= 140 < 9 < 9 2/15/ < 9 < < < 9 2/21/2017 >= 14,700 2, >= >= 8,700 5, /27/2017 >= 4, < 9 < /7/2017 >= 4, < 9 < 9 < 9 80 < 9 < 9 3/14/ < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 3/21/2017 >= 6, < /28/ < 9 < 9 < 9 < 9 < 9 9 < 9 < 9 A-8