Lake Elsinore and Canyon Lake Nutrient TMDL Monitoring Quarter 3 Report

Transcription

1 Lake Elsinore and Canyon Lake Nutrient TMDL Monitoring Quarter 3 Report Prepared for: Lake Elsinore & San Jacinto Watershed Project Authority Sterling Avenue Riverside, California Prepared by: Amec Foster Wheeler Environment and Infrastructure 9210 Sky Park Court Suite 200 San Diego, CA July 2018

2 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Lake Elsinore Monitoring Dates In-lake monitoring during the third quarter occurred February 8, 2018 and April 4, The lake levels on the day of sampling were and feet, respectively. Sampling is conducted monthly in Lake Elsinore during summer (June September) and bi-monthly during the remainder of the year (October May). Monitoring Locations Five locations were monitored in Lake Elsinore: Sites LE01, LE02, LE03 and the two in-lake data sondes maintained by Elsinore Valley Municipal Water District (EVMWD): Lakeshore Sonde and Grand Avenue Sonde. These sites are depicted in Figure 1. Weather February Warm and clear with a morning low of 42 F and a high of 84 F. Consistent wind speeds of 5-8 mph. April Overcast in the morning, giving way to sunny skies in the afternoon. Calm, with a low of 48 F and a high of 73 F. Water Quality Monitoring Activities Water quality monitoring was successfully performed in accordance with the project specific Work with no equipment failures or delays. Cyanobacterial toxin (cyanotoxins) samples were collected for the final time this annual monitoring period. Field monitoring included the following activities at each location or where indicated: Vertical water column profile measurements of temperature, conductivity, ph, and dissolved oxygen; (All stations) Depth-integrated water chemistry sample for Total Dissolved Solids, Sulfide, Nitrate as N, Nitrite as N, Kjeldahl Nitrogen, Total Nitrogen, Ammonia-Nitrogen, Ortho Phosphate Phosphorus, Total Phosphorus; (Site LE02 only) Chlorophyll-a surface (0-2 m) and full depth-integrated samples; (Site LE02 only) Surface grab and full depth-integrated samples for analysis of cyanotoxins (Microcystin, Cylindrospermopsin, Anatoxin-a, Nodularin); (Site LE02 only). Secchi disk measurements; (All stations) Full water column vertical plankton tows with samples preserved and archived for potential assessment in the future as needed; (Site LE02 only) Visual observations and photos of lake conditions. A summary of water quality profile data is presented in Tables 1 and 2. Results of the water chemistry analyses are presented in Tables 3 and 4. Aerial imagery of chlorophyll-a, turbidity, and cyanobacterial risk based on remote sensing satellite data are presented in Figures 2 through 11. Copies of field datasheets are provided in Appendix A. 1

3 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 1. Lake Elsinore Sampling Locations 2

4 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 1. Lake Elsinore In-situ Water Column Profile February 8, 2018 Site Time Measure Surface 1 m 2 m 3 m 4 m 5 m 6 m 7 m Water Column Mean LE01 LE02 LE03 Lakeshore Sonde Grand Ave Sonde a 0845 b Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) a Bottom depth measurement taken at 6.5m b Bottom depth measurement taken at 5.5m 3

5 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 2. Lake Elsinore In-situ Water Column Profile April 4, 2018 Site Time Measure Surface 1 m 2 m 3 m 4 m 5 m 6 m 7 m Water Column Mean LE01 a LE02 LE03 Lakeshore Sonde Grand Ave Sonde 08:00 15:00 08:20 14:45 09:28 14:30 09:55 09:40 Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) a Bottom depth measurement taken at 4.5 m b Bottom depth measurement taken at 5.5m 4

6 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 3. Water Chemistry for Lake Elsinore February 8, 2018 Method Compound Units RL Notes: a - Total Nitrogen = TKN+NO2+NO3 b - Annual average c - Values are site specific dependent upon ph and temperature recorded at each location d - Summer average (June through September) NA- Not applicable/available Basin Plan or TMDL Target Depth Integrated or Surface Sample SM 2540C Total Dissolved Solids mg/l Depth Integrated 2600 SM 4500S2 D Sulfide mg/l 0.1 NA Depth Integrated ND EPA Nitrate as N mg/l 0.2 NA Depth Integrated ND SM 4500NO2 B Nitrite as N mg/l 0.1 NA Depth Integrated ND EPA Kjeldahl Nitrogen mg/l 0.2 NA Depth Integrated 4.3 Total Nitrogen a mg/l b1 Depth Integrated 4.3 SM4500NH3H Ammonia-Nitrogen mg/l 0.1 CMC: 1.43 c1 CCC: 0.23 c1 Depth Integrated 0.19 SM 4500P E Ortho Phosphate Phosphorus mg/l 0.05 NA Depth Integrated ND EPA Total Phosphorus mg/l b1 Depth Integrated 0.09 EPA H Chlorophyll-a µg/l d1, 40 d2 Surface (0-2m) 139 Depth Integrated 98.2 LC-MS/MS Total Microcystin µg/l NA Surface Grab ND Depth Integrated ND LC-MS/MS Total Nodularin µg/l NA Surface Grab ND Depth Integrated ND LC-MS/MS Total Anatoxin-a µg/l 0.04 NA Surface Grab ND Depth Integrated ND LC-MS/MS Total Cylindrospermopsin µg/l 0.28 NA Surface Grab ND Depth Integrated ND TMDL Target, based on Table 5-9n of 2004 TMDL TMDL Target, based on Table 5-9n of 2004 TMDL 3 Santa Ana Region Basin Plan Objective ND- Not Detected LE02 5

7 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 4. Water Chemistry for Lake Elsinore April 4, 2018 Method Compound Units RL Basin Plan or TMDL Target Depth Integrated or Surface Sample SM 2540C Total Dissolved Solids mg/l Depth Integrated 2600 SM 4500S2 D Sulfide mg/l 0.1 NA Depth Integrated ND EPA Nitrate as N mg/l 0.2 NA Depth Integrated ND SM 4500NO2 B Nitrite as N mg/l 0.1 NA Depth Integrated ND EPA Kjeldahl Nitrogen mg/l 0.4 NA Depth Integrated 5.0 Total Nitrogen a mg/l b1 Depth Integrated 5.0 SM4500NH3H Ammonia-Nitrogen mg/l 0.1 CMC: 1.00 c1 CCC: 0.38 c1 Depth Integrated ND SM 4500P E Ortho Phosphate Phosphorus mg/l 0.05 NA Depth Integrated ND SM 4500P B E Total Phosphorus mg/l b1 Depth Integrated 0.17 EPA H Chlorophyll-a µg/l d1, 40 d2 LC-MS/MS Total Microcystin µg/l NA LC-MS/MS Total Nodularin µg/l NA LC-MS/MS Total Anatoxin-a µg/l NA LC-MS/MS Total Cylindrospermopsin µg/l 0.28 NA LE02 Surface (0-2m) 102 Depth Integrated 87.7 Surface Grab 0.18 Depth Integrated 0.36 Surface Grab Depth Integrated Surface Grab Depth Integrated ND ND ND ND Surface Grab 0.85 Depth Integrated 0.80 Notes: a - Total Nitrogen = TKN+NO2+NO3 b - Annual average c - Values are site specific dependent upon ph and temperature recorded at each location d - Summer average (June through September) NA Not applicable/ available TMDL Target, based on Table 5-9n of 2004 TMDL TMDL Target, based on Table 5-9n of 2004 TMDL 3 Santa Ana Region Basin Plan Objective ND Not detected 6

8 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 2. Satellite Imagery of Lake Elsinore Chlorophyll-a Concentrations February 8, 2018 Small data gaps mid-lake are due to surface cyanobacterial slicks 7

9 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 3. Satellite Imagery of Lake Elsinore Chlorophyll-a Concentrations based on TMDL Targets February 8, 2018 Data gaps mid-lake are due to surface cyanobacterial slicks 8

10 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 4. Satellite Imagery of Lake Elsinore Turbidity Measurements February 8, 2018 Data gaps mid-lake are due to surface cyanobacterial slicks 9

11 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 5. Satellite Imagery of Lake Elsinore HAB Indicator Likelihood February 8, 2018 Data gaps mid-lake are due to surface cyanobacterial slicks 10

12 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 6. Lake Elsinore Unprocessed Raw Satellite Image from February 8,

13 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 7. Satellite Imagery of Lake Elsinore Chlorophyll-a Concentrations April 4,

14 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 8. Satellite Imagery of Lake Elsinore Chlorophyll-a Concentrations based on TMDL Targets April 4,

15 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 9. Satellite Imagery of Lake Elsinore Turbidity Measurements April 4,

16 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 10. Satellite Imagery of Lake Elsinore HAB Indicator Likelihood April 4,

17 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 11. Lake Elsinore Unprocessed Raw Satellite Image from April 4,

18 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report June 2018 Canyon Lake Monitoring Dates During the third quarter lake monitoring was conducted in Canyon Lake on February 8, 2018 and April 4, The lake levels on the day of sampling were and feet, respectively. Year-round bi-monthly monitoring is required for Canyon Lake. Locations Four locations were sampled in Canyon Lake: Sites CL07, CL08 are located in the main lake body; and CL09, and CL10, are located in the eastern arm. These sites are depicted in Figure 12. Weather February Clear and calm, with a morning low of 44 F and a high of 83 F. Wind remained consistent at 5-8 mph. April Sunny and calm, with a low of 48 F and a high of 73 F. Wind speeds increased to 5-10 mph in the afternoon. Water Quality Monitoring Activities Water quality monitoring was successfully performed in accordance with the TMDL Work Plan and there were no equipment failures or delays. Cyanobacterial toxin (cyanotoxins) samples were collected for the final time this annual monitoring period. Field monitoring included the following activities at each location or where indicated: Vertical water column profile measurements of temperature, conductivity, ph, and dissolved oxygen; Depth-integrated (surface-to-bottom) water chemistry samples for Total Dissolved Solids, Sulfide, Nitrate as N, Nitrite as N, Kjeldahl Nitrogen, Total Nitrogen, Ammonia-Nitrogen, Ortho Phosphate Phosphorus, Total Phosphorus, Total and Dissolved Aluminum; Chlorophyll-a surface (0-2 m) and full depth-integrated samples; Cyanobacteria toxins (Microcystin, Cylindrospermopsin, Anatoxin-a, Nodularin) depthintegrated sample collection at all stations. An additional surface grab sample was also collected at CL07; Secchi disk measurements; Full water column vertical plankton tows with samples preserved and archived for potential assessment in the future as needed; Visual observations and photos of lake conditions. A summary of water quality profile data is presented in Tables 5 and 6. Results of the water chemistry analyses are presented in Tables 7 and 8. Satellite imagery of chlorophyll-a, turbidity, and cyanobacterial risk based on remote sensing data are presented in Figures 13 through 22. Copies of field datasheets are provided in Appendix A. 17

19 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report June 2018 Figure 12. Canyon Lake Sampling Locations 18

20 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 5. Canyon Lake In-situ Water Column Profile February 8, 2018 Site Time Measure Surface 1 m 2 m 3 m 4 m 5 m 6 m 7 m 8 m 9 m 10 m 11 m 12 m 13 m 14 m 15 m 16 m Water Column Mean - All Water Column Mean - Epilimnion Water Column Mean - Hypolimnion CL CL CL CL CL CL CL CL N. Ski Area Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Temp ( C) Cond (µs/cm) ph DO (mg/l) Hypolimnion Epilimnion Thermocline No Shading Indicates that there is no stratification 19

21 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 6. Canyon Lake In-situ Water Column Profile April 4, 2018 Site Time Measure Surface 1 m 2 m 3 m 4 m 5 m 6 m 7 m 8 m 9 m 10 m 11 m 12 m 13 m 14 m 15 m Water Column Mean - All Water Column Mean - Epilimnion Water Column Mean - Hypolimnion Temp ( C) CL07 10:30 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL07 15:25 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL08 09:45 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL08 15:00 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL09 a 09:00 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL09 a 14:35 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL10 b 08:15 Cond (µs/cm) ph DO (mg/l) Temp ( C) CL10 b 14:25 Cond (µs/cm) ph DO (mg/l) Hypolimnion Epilimnion Thermocline No Shading Indicates that there is no stratification 20

22 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Method Compound Table 7. Canyon Lake Water Chemistry February 8, 2018 Units RL Basin Plan or TMDL Target Depth Integrated or Surface Sample CL07 CL08 CL09 CL10 SM 2540C Total Dissolved Solids mg/l Depth Integrated SM 4500S2 D Sulfide mg/l 0.1 NA Depth Integrated ND ND ND ND EPA Nitrate as N mg/l Depth Integrated J ND SM 4500NO2 B Nitrite as N mg/l 0.1 NA Depth Integrated ND ND ND ND EPA Kjeldahl Nitrogen mg/l 0.1 NA Depth Integrated Total Nitrogen a mg/l b1 Depth Integrated J 1.2 SM4500NH3H Ammonia-Nitrogen mg/l 0.1 CMC: c1 CCC: c1 Depth Integrated ND SM 4500P E Ortho Phosphate Phosphorus mg/l 0.05 NA Depth Integrated 0.03J J ND EPA Total Phosphorus mg/l b1 Depth Integrated EPA Total Aluminum µg/l 100 NA Depth Integrated J 160 EPA Dissolved Aluminum µg/l 100 NA Depth Integrated ND ND ND ND EPA H Chlorophyll-a µg/l b1, 40 b2 Surface (0-2m) Depth Integrated LC-MS/MS Total Microcystin µg/l NA Surface Grab ND ND ND ND Depth Integrated ND ND ND ND LC-MS/MS Total Nodularin µg/l NA Surface Grab ND ND ND ND Depth Integrated ND ND ND ND LC-MS/MS Total Anatoxin-a µg/l 0.04 NA Surface Grab ND ND ND ND Depth Integrated ND ND ND ND LC-MS/MS Total Surface Grab ND ND ND ND µg/l 0.28 NA Cylindrospermopsin Depth Integrated ND ND ND ND Notes: a - Total Nitrogen = TKN+NO2+NO3 b - Annual average c - Values are site specific; dependent upon ph and temperature TMDL Target, based on Table 5-9n of 2004 TMDL TMDL Target, based on Table 5-9n of 2004 TMDL NA Not applicable/available ND Not detected J- Estimated value 21

23 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Table 8. Canyon Lake Water Chemistry April 4, 2018 Method Compound Units RL Basin Plan or TMDL Target Depth Integrated or Surface Sample CL07 CL08 CL09 CL10 SM 2540C Total Dissolved Solids mg/l Depth Integrated SM 4500S2 D Sulfide mg/l 0.1 NA Depth Integrated ND ND ND ND EPA Nitrate as N mg/l Depth Integrated 0.08J 0.09J ND 0.1J SM 4500NO2 B Nitrite as N mg/l 0.1 NA Depth Integrated ND ND ND ND EPA Kjeldahl Nitrogen mg/l 0.1 NA Depth Integrated Total Nitrogen a mg/l b1 Depth Integrated SM4500NH3H Ammonia-Nitrogen mg/l 0.1 CMC: c1 CCC: c1 Depth Integrated J ND ND SM 4500P E Ortho Phosphate Phosphorus mg/l 0.05 NA Depth Integrated ND ND ND ND SM 4500P B E Total Phosphorus mg/l b1 Depth Integrated EPA Total Aluminum µg/l 100 NA Depth Integrated 43J 43J 46J 140 EPA Dissolved Aluminum µg/l 100 NA Depth Integrated ND ND ND ND EPA H Chlorophyll-a µg/l b1, 40 b2 Surface (0-2m) Depth Integrated LC-MS/MS Total Microcystin µg/l NA Surface Grab 0.10 NS NS NS Depth Integrated LC-MS/MS Total Nodularin µg/l NA Surface Grab ND NS NS NS Depth Integrated ND ND ND ND LC-MS/MS Total Anatoxin-a µg/l NA Surface Grab ND NS NS NS Depth Integrated ND ND ND ND LC-MS/MS Total Cylindrospermopsin µg/l 0.28 NA Surface Grab ND NS NS NS Depth Integrated ND ND ND ND Notes: a - Total Nitrogen = TKN+NO2+NO3 b - Annual average c - Values are site specific dependent upon ph and temperature TMDL Target, based on Table 5-9n of 2004 TMDL TMDL Target, based on Table 5-9n of 2004 TMDL NA Not applicable/available ND Not detected NS- Not sampled J- Estimated value 22

24 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 13. Satellite Imagery of Canyon Lake Chlorophyll-a Concentrations February 8,

25 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 14. Satellite Imagery of Canyon Lake Chlorophyll-a Concentrations February 8, 2018 based on TMDL Targets 24

26 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 15. Satellite Imagery of Canyon Lake Turbidity Measurements February 8,

27 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 16. Satellite Imagery of Canyon Lake HAB Indicator Likelihood February 8,

28 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 17. Canyon Lake Unprocessed Raw Satellite Image from February 8,

29 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 18. Satellite Imagery of Canyon Lake Chlorophyll-a Concentrations April 4,

30 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 19. Satellite Imagery of Canyon Lake Chlorophyll-a Concentrations based on TMDL Targets April 4,

31 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 20. Satellite Imagery of Canyon Lake Turbidity Measurements April 4,

32 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 21. Satellite Imagery of Canyon Lake HAB Indicator Likelihood April 4,

33 AMEC Foster Wheeler Lake Elsinore and Canyon Lake Nutrient TMDL In Lake Monitoring Quarter 3 Report July 2018 Figure 22. Canyon Lake Unprocessed Raw Satellite Image from April 4,

34 Appendix A Field Datasheets

35 February 8, 2018 Field Datasheets

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53 April 4, 2018 Field Datasheets

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69