grassland bypass project quarterly … bypass project quarterly data report january, february and...

GRASSLAND BYPASS PROJECT

QUARTERLY DATA REPORT

January, February and March 2013

December 2013

A cooperative effort of:

U.S. Bureau of ReclamationCentral Valley Regional Water Quality Control Board

U.S. Fish and Wildlife ServiceCalifornia Department of Fish and Game

San Luis & Delta-Mendota Water AuthorityU.S. Environmental Protection Agency

U.S. Geological Survey

compiled by San Francisco Estuary Institute

Grassland Bypass Project Jan-Feb-Mar 2013

Map 1: Current Monitoring Plan for the Grasslands Bypass Project

Compiled by SFEI www.sfei.org/grassland/reports/gbppdfs.htm - 3 - Print Date: 11/25/2013


Map 2: Proposed 2013 Monitoring Plan for the Grasslands Bypass Project

41,122.00

41,244.00



GRASSLAND BYPASS PROJECT

QUARTERLY DATA REPORT

LIST OF TABLES FOR QUARTERLY REPORT

Continuous Monitoring1. Continuous water monitoring at Station A (inflow to San Luis Drain), January, February, March 2013.2a. Continuous water monitoring at Stations B and B2 (San Luis Drain Terminus), January, February, March 2013.2b. Monthly selenium discharges from the terminus of the San Luis Drain into Mud Slough compared to load values.3. Continuous water monitoring at Station D (Mud Slough North downstream of drainage discharges), January, February, March 2013.4. Continuous water monitoring at Station F (Salt Slough at Highway 165), January, February, March 2013.5. Continuous water monitoring at Station N (San Joaquin River at Crow’s Landing), January, February, March 2013.

Weekly Monitoring6. Weekly water quality monitoring at Station A (inflow to San Luis Drain).7. Weekly water quality monitoring at Station B (discharge from San Luis Drain).8. Weekly water quality monitoring at Station C (Mud Slough North upstream of drainage discharge).9. Weekly water quality monitoring at Station D (Mud Slough North downstream of drainage discharge).

10. Weekly water quality monitoring at Station I2 (Mud Slough backwater downstream of Station D).11. Weekly water quality monitoring at Station F (Salt Slough at Lander Avenue).12. Weekly water quality monitoring at Station G (San Joaquin River at Fremont Ford).13. Weekly water quality monitoring at Station J (Camp 13 Ditch).14. Weekly water quality monitoring at Station K (Agatha Canal).15. Weekly water quality monitoring at Station L2 (San Luis Canal at splits).16. Weekly water quality monitoring at Station M2 (Santa Fe Canal at weir).17. Weekly water quality monitoring at Station H1 (Above Newman WW (previously SJR at Hills Ferry)).18. Weekly water quality monitoring at Station H2 (San Joaquin River at Hills Ferry).19. Weekly water quality monitoring at Station N (San Joaquin River at Crow’s Landing).20. Weekly water quality monitoring at Central California Irrigation District Main Canal at Russell Avenue (MER510).

Monthly Monitoring21. Summary of fathead minnow (Pimephales promelas ) larvae survival in 7-day tests using water samples collected

from April 2012 to March 2013.22. Summary of fathead minnow (Pimephales promelas ) larvae growth in 7-day tests using water samples collected

from April 2012 to March 2013.23. Summary of Daphnia magna survival in 7-day tests using water samples collected from April 2012 to

March 2013.24. Summary of Daphnia magna reproduction in 7-day tests using water samples collected from April 2012

to March 2013.25. Summary of Selenastrum capricornutum growth in 4-day tests using water samples collected from April 2012

to March 2013.26. Summary of selenium concentrations in grab water samples collected at study stations for use in laboratory

toxicity tests, January 2013 to March 2013.27. Summary of total suspended solids concentrations in grab water samples collected from January 2013 to March 2013.28. Summary of salinity monitoring results at San Luis Drain from October 2011 to March 2013.29. Summary of salinity monitoring results at Mud Slough from October 2011 to March 2013.30. Summary of salinity monitoring results at Salt Slough from October 2011 to March 2013.31. Summary of salinity monitoring results at San Joaquin River at Fremont Ford from October 2011 to March 2013.32. Summary of salinity monitoring results at Crow's Landing from October 2011 to March 2013.

Quarterly Monitoring33. Summary of sediment monitoring results from March 2011 to March 2013.



PRELIMINARY RESULTS

Table 1. Continuous water monitoring at Station A (inflow to San Luis Drain), January, February, March 2013.

See Table 34 for explanation of footnotes and agency abbreviations.

PARAMETER FlowSpecific

Conductance FlowSpecific

Conductance FlowSpecific

ConductanceDATA SOURCE SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA

UNITS cfs µS/cm cfs µS/cm cfs µS/cmMonth January January February February March MarchDay 1 12 5,400 12 5,040 15 4,420Day 2 9 5,480 13 4,920 22 4,100Day 3 8 5,750 11 5,110 20 4,120Day 4 8 5,730 12 5,680 16 4,390Day 5 7 5,700 15 5,510 19 4,790Day 6 25 5,290 13 5,330 22 4,760Day 7 43 4,890 14 5,110 23 4,710Day 8 28 4,920 12 4,980 19 4,700Day 9 21 5,090 13 5,190 17 4,920Day 10 16 5,300 12 5,190 12 4,830Day 11 12 5,110 12 5,190 9 4,800Day 12 12 5,140 11 5,470 10 4,860Day 13 11 5,250 12 5,550 12 5,240Day 14 10 5,400 12 5,240 10 5,330Day 15 8 5,720 14 4,970 10 5,120Day 16 7 5,670 15 4,650 12 5,000Day 17 7 5,670 15 4,440 12 4,970Day 18 7 5,740 16 4,250 12 5,010Day 19 10 5,330 17 4,380 12 4,790Day 20 7 5,560 15 4,520 10 4,650Day 21 7 5,830 19 4,680 12 4,600Day 22 8 6,080 15 4,720 13 4,400Day 23 9 6,060 13 5,000 13 4,220Day 24 9 5,950 19 4,890 14 4,340Day 25 8 5,830 20 4,480 12 4,780Day 26 16 5,250 23 5,160 11 5,250Day 27 15 4,990 21 4,300 14 5,090Day 28 10 5,160 20 4,130 11 5,170Day 29 11 5,410 . . 10 4,990Day 30 14 5,300 . . 14 5,020Day 31 13 5,190 . . 22 5,190Mean 13 5,460 15 4,930 14 4,790



PRELIMINARY RESULTS

Table 2a. Continuous water monitoring at Stations B and B2 (San Luis Drain Terminus), January 2013.


PARAMETERSan Luis Drain

Outlet Flow Temperature BoronSpecific

ConductanceSelenium

(total)Selenium

(total) LoadDATA SOURCE SLDMWA♦ SLDMWA USBR SLDMWA USBR Computed

UNITS cfs °C mg/L µS/cm µg/L lbsJan-01-2013 19 4.7 10.0 4,740 33.0 3.5Jan-02-2013 18 5.3 9.7 4,750 34.0 3.4Jan-03-2013 15 5.1 9.1 4,530 30.0 2.5Jan-04-2013 14 5.5 9.5 4,570 30.0 2.2Jan-05-2013 13 6.3 10.0 4,620 32.0 2.3Jan-06-2013 16 7.5 9.0 4,500 30.0 2.6Jan-07-2013 31 6.5 8.3 4,230 33.0 5.5Jan-08-2013 48 7.3 8.1 4,220 27.0 7.0Jan-09-2013 34 6.6 10.0 4,760 34.0 6.2Jan-10-2013 27 6.2 10.0 4,920 32.0 4.6Jan-11-2013 23 5.3 11.0 4,830 38.0 4.7Jan-12-2013 19 4.7 9.8 4,680 35.0 3.5Jan-13-2013 19 2.3 9.8 4,550 33.0 3.3Jan-14-2013 17 2.9 9.7 4,520 32.0 2.9Jan-15-2013 16 4.0 9.7 4,590 33.0 2.9Jan-16-2013 15 5.6 8.6 4,490 30.0 2.4Jan-17-2013 14 6.6 8.6 4,290 30.0 2.2Jan-18-2013 13 6.9 NA 4,380 31.5 2.2Jan-19-2013 13 7.1 8.1 4,340 33.0 2.3Jan-20-2013 16 7.5 8.4 4,300 31.0 2.7Jan-21-2013 13 7.2 8.6 4,310 28.0 2.0Jan-22-2013 13 8.4 8.2 4,410 31.0 2.1Jan-23-2013 14 8.5 8.5 4,470 29.0 2.2Jan-24-2013 15 10.7 7.8 4,370 25.0 2.0Jan-25-2013 16 13.3 9.0 4,540 28.0 2.4Jan-26-2013 15 13.7 7.9 4,720 26.0 2.0Jan-27-2013 20 8.2 8.6 4,470 31.0 3.3Jan-28-2013 21 7.8 9.0 4,820 35.0 4.0Jan-29-2013 17 8.7 9.3 4,970 35.0 3.2Jan-30-2013 17 9.6 9.3 4,950 33.0 3.0Jan-31-2013 19 9.5 9.8 5,000 31.0 3.2

Mean 19 7.1 9.1 4,580 31.4 3.2Total Acre-feet 1,150

Total (lbs) 98

Load Limitation for January 2013 (lbs) 151



PRELIMINARY RESULTS

Table 2a. Continuous water monitoring at Stations B and B2 (San Luis Drain Terminus), February 2013.




ConductanceSelenium

(total)Selenium


UNITS cfs °C mg/L µS/cm µg/L lbsFeb-01-2013 18 10.5 8.7 4,730 28.0 2.8Feb-02-2013 18 10.0 8.5 4,660 30.0 2.8Feb-03-2013 18 9.6 8.6 4,460 32.0 3.1Feb-04-2013 17 10.5 8.9 4,920 37.0 3.3Feb-05-2013 16 9.2 8.9 4,920 38.0 3.3Feb-06-2013 19 8.8 8.1 4,790 38.0 3.9Feb-07-2013 18 9.2 8.2 4,630 37.0 3.6Feb-08-2013 19 7.7 8.4 4,590 39.0 3.9Feb-09-2013 18 7.6 9.3 4,700 36.0 3.4Feb-10-2013 18 6.9 10.0 5,160 33.0 3.2Feb-11-2013 17 8.5 9.2 5,070 31.0 2.9Feb-12-2013 17 9.0 8.6 4,910 30.0 2.7Feb-13-2013 16 10.5 7.7 4,820 30.0 2.5Feb-14-2013 16 11.4 8.7 4,610 31.0 2.7Feb-15-2013 16 12.3 8.4 4,760 30.0 2.6Feb-16-2013 18 12.0 8.3 4,830 31.0 3.0Feb-17-2013 19 11.2 9.2 4,820 31.0 3.2Feb-18-2013 19 10.3 9.5 4,980 26.0 2.6Feb-19-2013 20 7.3 8.7 5,130 24.0 2.5Feb-20-2013 21 8.0 8.3 4,830 23.0 2.6Feb-21-2013 20 7.7 8.8 4,600 25.0 2.7Feb-22-2013 24 9.2 8.0 4,370 20.0 2.6Feb-23-2013 19 10.8 7.7 4,150 19.0 2.0Feb-24-2013 17 10.9 7.7 4,260 24.0 2.2Feb-25-2013 23 10.4 8.6 4,320 21.0 2.6Feb-26-2013 24 10.5 9.2 4,630 26.0 3.3Feb-27-2013 27 11.1 8.8 4,670 23.0 3.4Feb-28-2013 25 13.9 9.2 4,990 23.0 3.1

. . . . . . .

. . . . . . .

. . . . . . .Mean 19 9.8 8.7 4,730 29.1 2.9

Total Acre-feet 1,060Total (lbs) 83

Load Limitation for February 2013 (lbs) 93



PRELIMINARY RESULTS

Table 2a. Continuous water monitoring at Stations B and B2 (San Luis Drain Terminus), March 2013.




ConductanceSelenium

(total)Selenium


UNITS cfs °C mg/L µS/cm µg/L lbsMar-01-2013 24 15.6 8.4 4,860 25.0 3.2Mar-02-2013 19 15.4 10.0 4,740 29.0 3.0Mar-03-2013 24 15.4 10.0 5,410 25.0 3.3Mar-04-2013 24 15.4 8.1 4,500 24.0 3.0Mar-05-2013 19 15.4 8.1 4,320 23.0 2.4Mar-06-2013 22 15.4 8.0 4,460 23.0 2.7Mar-07-2013 24 15.4 8.2 4,350 23.0 3.0Mar-08-2013 26 15.4 8.4 4,490 23.0 3.2Mar-09-2013 21 15.4 9.0 4,630 26.0 3.0Mar-10-2013 21 15.4 9.3 4,990 28.0 3.1Mar-11-2013 16 15.4 8.4 5,010 36.0 3.0Mar-12-2013 13 15.4 8.7 5,020 33.0 2.2Mar-13-2013 12 15.4 8.4 5,020 27.0 1.8Mar-14-2013 14 15.4 9.2 4,960 26.0 1.9Mar-15-2013 12 15.4 10.0 4,880 27.0 1.8Mar-16-2013 12 15.4 10.0 5,220 25.0 1.6Mar-17-2013 13 15.4 9.2 4,940 23.0 1.6Mar-18-2013 14 15.4 8.6 4,690 21.0 1.6Mar-19-2013 13 15.4 9.2 4,720 20.0 1.4Mar-20-2013 13 15.4 11.0 5,020 20.0 1.4Mar-21-2013 10 15.4 9.8 5,310 19.0 1.0Mar-22-2013 10 15.4 9.5 5,130 20.0 1.1Mar-23-2013 14 15.4 9.8 5,060 21.0 1.6Mar-24-2013 13 15.4 10.0 5,040 23.0 1.6Mar-25-2013 14 15.4 10.0 5,120 22.0 1.7Mar-26-2013 12 15.4 10.0 5,280 22.0 1.4Mar-27-2013 12 15.4 9.6 5,030 19.0 1.2Mar-28-2013 14 15.4 9.6 4,960 18.0 1.3Mar-29-2013 12 15.4 8.4 4,930 17.0 1.1Mar-30-2013 10 15.4 8.6 4,670 18.0 1.0Mar-31-2013 13 15.4 9.3 4,870 19.0 1.3

Mean 16 15.4 9.2 4,890 23.4 2.0Total Acre-feet 970

Total (lbs) 63

Load Limitation for March 2013 (lbs) 92



PRELIMINARY RESULTS

Table 2a. Continuous water monitoring at Stations B and B2 (San Luis Drain Terminus), March 2013.

151

93 92101 105

69 7075

57 55 55

152

0

20

40

60

80

100

120

140

160

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sele

nium

,pou

nds

Month

Grassland Bypass ProjectCalendar Year 2013

Load Value Discharge



PRELIMINARY RESULTS

Table 3. Continuous water monitoring at Station D (Mud Slough North downstream of drainage discharges), January 2013.


PARAMETER Flow TemperatureSpecific

ConductanceDATA SOURCE USGS USGS USGS

UNITS cfs °C µS/cmJan-01-2013 156 7.9 2,160Jan-02-2013 145 7.7 2,180Jan-03-2013 141 7.8 2,110Jan-04-2013 128 8.1 2,170Jan-05-2013 120 8.4 2,230Jan-06-2013 157 9.2 2,070Jan-07-2013 187 8.8 2,110Jan-08-2013 206 9.0 2,290Jan-09-2013 195 9.1 2,270Jan-10-2013 170 8.8 2,310Jan-11-2013 160 8.1 2,250Jan-12-2013 156 7.7 2,160Jan-13-2013 150 7.0 2,210Jan-14-2013 139 6.3 2,260Jan-15-2013 128 6.4 2,330Jan-16-2013 113 6.9 2,410Jan-17-2013 102 7.6 2,440Jan-18-2013 96 8.3 2,510Jan-19-2013 91 8.8 2,560Jan-20-2013 92 9.1 2,630Jan-21-2013 88 9.4 2,610Jan-22-2013 86 9.8 2,620Jan-23-2013 98 10.2 2,500Jan-24-2013 100 10.7 2,480Jan-25-2013 103 11.7 2,490Jan-26-2013 100 13.0 2,520Jan-27-2013 106 11.9 2,550Jan-28-2013 106 10.9 2,650Jan-29-2013 103 10.8 2,660Jan-30-2013 101 11.1 2,650Jan-31-2013 105 11.5 2,660

Mean 127 9.1 2,390



PRELIMINARY RESULTS

Table 3. Continuous water monitoring at Station D (Mud Slough North downstream of drainage discharges), February 2013.




UNITS cfs °C µS/cmFeb-01-2013 90 12.0 2,830Feb-02-2013 86 12.3 2,860Feb-03-2013 90 12.3 2,740Feb-04-2013 92 12.6 2,770Feb-05-2013 90 12.5 2,790Feb-06-2013 90 12.0 2,870Feb-07-2013 87 12.2 2,850Feb-08-2013 89 11.6 2,840Feb-09-2013 90 10.6 2,810Feb-10-2013 92 10.4 2,860Feb-11-2013 101 10.8 2,670Feb-12-2013 93 11.2 2,760Feb-13-2013 84 11.8 2,830Feb-14-2013 85 12.5 2,790Feb-15-2013 88 13.2 2,790Feb-16-2013 87 13.5 2,870Feb-17-2013 85 13.8 2,910Feb-18-2013 87 13.6 2,880Feb-19-2013 103 12.3 2,780Feb-20-2013 112 11.1 2,680Feb-21-2013 118 11.1 2,550Feb-22-2013 120 11.5 2,580Feb-23-2013 119 12.3 2,470Feb-24-2013 115 10.9 2,420Feb-25-2013 133 11.5 2,390Feb-26-2013 130 11.8 2,470Feb-27-2013 131 12.3 2,590Feb-28-2013 131 13.5 2,630

. . . .

. . . .

. . . .Mean 101 12.0 2,720



PRELIMINARY RESULTS

Table 3. Continuous water monitoring at Station D (Mud Slough North downstream of drainage discharges), March 2013.




UNITS cfs °C µS/cmMar-01-2013 145 15.0 2,500Mar-02-2013 147 15.9 2,370Mar-03-2013 155 16.3 2,510Mar-04-2013 172 16.0 2,330Mar-05-2013 182 15.9 2,400Mar-06-2013 180 14.8 2,470Mar-07-2013 182 14.3 2,450Mar-08-2013 191 14.6 2,420Mar-09-2013 187 14.1 2,420Mar-10-2013 179 14.3 2,480Mar-11-2013 166 15.3 2,420Mar-12-2013 179 16.6 2,240Mar-13-2013 193 18.1 2,210Mar-14-2013 198 19.1 2,320Mar-15-2013 198 19.1 2,340Mar-16-2013 192 18.7 2,420Mar-17-2013 196 18.4 2,500Mar-18-2013 197 17.6 2,470Mar-19-2013 183 17.9 2,510Mar-20-2013 165 18.4 2,600Mar-21-2013 139 17.4 2,660Mar-22-2013 121 14.7 2,610Mar-23-2013 107 13.6 2,810Mar-24-2013 85 15.3 3,040Mar-25-2013 75 17.2 3,240Mar-26-2013 86 18.0 2,880Mar-27-2013 83 18.6 2,870Mar-28-2013 82 19.3 2,860Mar-29-2013 70 19.8 2,960Mar-30-2013 64 20.9 3,130Mar-31-2013 65 20.9 3,240

Mean 147 17.0 2,600



PRELIMINARY RESULTS

Table 4. Continuous water monitoring at Station F (Salt Slough at Highway 165), January 2013.




UNITS cfs °C µS/cmJan-01-2013 151 7.8 1,580Jan-02-2013 134 7.8 1,680Jan-03-2013 124 7.8 1,670Jan-04-2013 118 7.9 1,660Jan-05-2013 111 8.2 1,710Jan-06-2013 127 9.0 1,630Jan-07-2013 147 8.8 1,550Jan-08-2013 160 8.6 1,480Jan-09-2013 164 8.6 1,490Jan-10-2013 158 8.6 1,550Jan-11-2013 153 8.0 1,560Jan-12-2013 148 7.5 1,570Jan-13-2013 143 6.9 1,580Jan-14-2013 137 6.4 1,570Jan-15-2013 130 6.4 1,600Jan-16-2013 124 6.8 1,620Jan-17-2013 117 7.3 1,660Jan-18-2013 123 7.8 1,610Jan-19-2013 131 8.0 1,470Jan-20-2013 127 8.3 1,490Jan-21-2013 122 8.5 1,480Jan-22-2013 118 8.9 1,510Jan-23-2013 117 9.4 1,530Jan-24-2013 116 10.2 1,510Jan-25-2013 113 11.2 1,530Jan-26-2013 113 12.5 1,540Jan-27-2013 115 11.9 1,570Jan-28-2013 113 10.7 1,530Jan-29-2013 106 10.4 1,630Jan-30-2013 98 10.6 1,720Jan-31-2013 98 11.0 1,750

Mean 128 8.8 1,580



PRELIMINARY RESULTS

Table 4. Continuous water monitoring at Station F (Salt Slough at Highway 165), February 2013.




UNITS cfs °C µS/cmFeb-01-2013 96 11.3 1,670Feb-02-2013 92 11.7 1,730Feb-03-2013 91 12.1 1,750Feb-04-2013 92 12.1 1,790Feb-05-2013 93 11.9 1,830Feb-06-2013 93 11.8 1,820Feb-07-2013 92 11.7 1,790Feb-08-2013 92 11.4 1,850Feb-09-2013 90 10.7 1,870Feb-10-2013 84 10.4 1,970Feb-11-2013 89 10.6 2,010Feb-12-2013 100 10.7 1,830Feb-13-2013 113 11.0 1,670Feb-14-2013 104 11.5 1,690Feb-15-2013 109 12.1 1,670Feb-16-2013 134 12.2 1,460Feb-17-2013 144 12.5 1,390Feb-18-2013 170 12.4 1,350Feb-19-2013 207 11.5 1,280Feb-20-2013 218 10.3 1,290Feb-21-2013 249 9.9 1,220Feb-22-2013 280 10.3 1,210Feb-23-2013 299 11.0 1,210Feb-24-2013 291 10.6 1,200Feb-25-2013 294 10.7 1,200Feb-26-2013 307 10.9 1,210Feb-27-2013 317 11.3 1,240Feb-28-2013 312 12.2 1,240

. . . .

. . . .

. . . .Mean 166 11.3 1,550



PRELIMINARY RESULTS

Table 4. Continuous water monitoring at Station F (Salt Slough at Highway 165), March 2013.




UNITS cfs °C µS/cmMar-01-2013 301 13.6 1,250Mar-02-2013 291 14.8 1,320Mar-03-2013 286 15.7 1,340Mar-04-2013 287 15.4 1,290Mar-05-2013 292 15.1 1,260Mar-06-2013 297 14.6 1,320Mar-07-2013 291 14.0 1,380Mar-08-2013 283 14.1 1,380Mar-09-2013 274 13.9 1,380Mar-10-2013 258 13.8 1,420Mar-11-2013 240 14.5 1,460Mar-12-2013 218 15.8 1,570Mar-13-2013 211 17.0 1,700Mar-14-2013 217 18.0 1,680Mar-15-2013 212 18.2 1,670Mar-16-2013 191 18.0 1,680Mar-17-2013 193 17.7 1,670Mar-18-2013 200 17.0 1,640Mar-19-2013 203 17.3 1,610Mar-20-2013 199 17.8 1,680Mar-21-2013 188 17.0 1,760Mar-22-2013 177 14.9 1,830Mar-23-2013 158 14.2 1,930Mar-24-2013 140 15.3 2,000Mar-25-2013 128 16.8 2,060Mar-26-2013 122 17.6 2,030Mar-27-2013 124 18.1 1,940Mar-28-2013 133 19.0 1,790Mar-29-2013 149 19.5 1,690Mar-30-2013 159 20.5 1,700Mar-31-2013 155 20.5 1,690

Mean 212 16.4 1,620



PRELIMINARY RESULTS

Table 5. Continuous water monitoring at Station N (San Joaquin River at Crow’s Landing), January 2013.


PARAMETER Flow Temperature BoronSpecific

Conductance Selenium (total)DATA SOURCE USGS USGS USBR USGS USBR

UNITS cfs °C mg/L µS/cm µg/LJan-01-2013 1,290 7.9 NA 836 NAJan-02-2013 1,150 7.6 NA 892 NAJan-03-2013 1,050 7.5 NA 930 NAJan-04-2013 969 7.7 NA 967 NAJan-05-2013 896 8.0 NA 993 NAJan-06-2013 892 8.8 NA 1,020 NAJan-07-2013 929 8.5 NA 1,040 NAJan-08-2013 1,200 8.3 NA 908 NAJan-09-2013 1,260 8.3 NA 869 NAJan-10-2013 1,210 8.3 NA 948 NAJan-11-2013 1,120 7.9 NA 1,020 NAJan-12-2013 1,020 7.6 NA 1,080 No samplesJan-13-2013 960 7.1 NA 1,130 collectedJan-14-2013 924 6.5 NA 1,150 1/1 - 1/28Jan-15-2013 883 6.6 NA 1,190 due to autoJan-16-2013 848 6.9 NA 1,210 sampler malfunctionJan-17-2013 815 7.2 NA 1,250 NAJan-18-2013 792 7.7 NA 1,270 NAJan-19-2013 768 8.1 NA 1,280 NAJan-20-2013 747 8.4 NA 1,290 NAJan-21-2013 747 8.6 NA 1,290 NAJan-22-2013 733 8.9 NA 1,300 NAJan-23-2013 714 9.4 NA 1,310 NAJan-24-2013 702 10.0 NA 1,320 NAJan-25-2013 691 11.2 NA 1,340 NAJan-26-2013 690 12.3 NA 1,360 NAJan-27-2013 680 11.6 NA 1,380 NAJan-28-2013 683 10.6 NA 1,370 NAJan-29-2013 687 10.4 Low flow volume. 1,390 1.2Jan-30-2013 670 10.7 Samples only 1,440 1.3Jan-31-2013 651 11.0 analyzed for Se 1,450 1.2

Mean 883 8.7 NA 1,170 1.2Total Acre-feet 54,290



PRELIMINARY RESULTS

Table 5. Continuous water monitoring at Station N (San Joaquin River at Crow’s Landing), February 2013.



Conductance Selenium (total)DATA SOURCE USGS USGS USBR USBR USBR

UNITS cfs °C mg/L µS/cm µg/LFeb-01-2013 647 11.3 NA 1,480 1.4Feb-02-2013 626 11.6 NA 1,510 1.4Feb-03-2013 616 11.4 NA 1,530 1.2Feb-04-2013 620 11.8 Low flow volume. 1,550 1.1Feb-05-2013 613 12.1 Samples only 1,540 1.1Feb-06-2013 608 11.8 analyzed for Se 1,540 1.2Feb-07-2013 609 12.1 0.9 1,560 1.3Feb-08-2013 605 11.5 1.0 1,560 1.4Feb-09-2013 600 10.7 1.0 1,550 1.3Feb-10-2013 592 10.6 1.0 1,550 1.4Feb-11-2013 582 10.8 1.0 1,540 1.4Feb-12-2013 570 11.1 1.0 1,550 1.2Feb-13-2013 551 11.6 1.1 1,560 1.2Feb-14-2013 547 12.1 1.0 1,580 1.1Feb-15-2013 558 12.7 1.0 1,550 1.1Feb-16-2013 562 13.0 0.9 1,510 1.1Feb-17-2013 576 13.1 1.0 1,500 1.1Feb-18-2013 585 13.1 0.9 1,460 1.2Feb-19-2013 588 12.5 0.9 1,440 1.2Feb-20-2013 611 11.2 0.9 1,450 1.3Feb-21-2013 627 11.5 0.9 1,450 1.2Feb-22-2013 647 11.6 0.9 1,430 1.2Feb-23-2013 662 12.2 0.9 1,410 1.1Feb-24-2013 679 11.2 0.9 1,410 1.1Feb-25-2013 674 11.6 0.9 1,400 0.9Feb-26-2013 673 12.0 0.9 1,400 1.1Feb-27-2013 682 12.1 0.9 1,400 1.1Feb-28-2013 674 13.2 0.9 1,410 1.3

. . . . . .

. . . . . .

. . . . . .Mean 614 11.8 0.9 1,490 1.2

Total Acre-feet 34,084



PRELIMINARY RESULTS

Table 5. Continuous water monitoring at Station N (San Joaquin River at Crow’s Landing), March 2013.



Conductance Selenium (total)DATA SOURCE USGS USGS USBR USBR USBR

UNITS cfs °C mg/L µS/cm µg/LMar-01-2013 681 14.5 1.0 1,440 1.2Mar-02-2013 695 15.4 1.0 1,450 1.2Mar-03-2013 712 16.1 1.0 1,440 1.1Mar-04-2013 711 15.8 1.0 1,460 1.1Mar-05-2013 720 15.9 1.0 1,470 1.2Mar-06-2013 743 15.2 1.0 1,480 1.3Mar-07-2013 768 14.5 1.0 1,490 1.0Mar-08-2013 779 15.0 1.0 1,500 1.0Mar-09-2013 805 14.8 1.0 1,500 1.1Mar-10-2013 801 14.8 1.0 1,480 1.1Mar-11-2013 759 15.2 1.0 1,510 1.1Mar-12-2013 695 16.2 1.0 1,540 1.2Mar-13-2013 677 17.1 1.0 1,580 1.1Mar-14-2013 658 18.0 1.0 1,610 0.9Mar-15-2013 676 18.2 1.2 1,620 0.9Mar-16-2013 707 17.9 1.1 1,620 0.8Mar-17-2013 750 17.9 1.2 1,660 0.9Mar-18-2013 751 17.5 1.2 1,660 0.9Mar-19-2013 769 17.7 1.2 1,620 0.9Mar-20-2013 725 18.4 1.2 1,670 0.8Mar-21-2013 704 17.7 1.3 1,740 0.8Mar-22-2013 677 15.6 1.3 1,720 0.8Mar-23-2013 670 14.4 1.2 1,670 0.7Mar-24-2013 654 15.6 1.2 1,680 0.8Mar-25-2013 649 16.7 1.2 1,710 0.7Mar-26-2013 574 17.3 1.2 1,780 0.8Mar-27-2013 535 18.1 1.2 1,770 0.8Mar-28-2013 515 19.2 1.2 1,770 0.7Mar-29-2013 511 19.7 1.1 1,720 0.7Mar-30-2013 503 20.4 1.1 1,690 0.8Mar-31-2013 510 20.9 1.0 1,640 0.7

Mean 680 16.8 1.1 1,600 0.9Total Acre-feet 41,820



PRELIMINARY RESULTS

Table 6a. Weekly water quality monitoring at Station A (inflow to San Luis Drain).


PARAMETER FlowTotal

SuspendedSolids

SpecificConductance

Selenium(total) Boron

DATA SOURCE SLDMWA Panoche DD USBR USBR USBR

Grab sample Composite Composite Composite

UNITS cfs mg/L µS/cm µg/L mg/LJan-02-2013 9 18 NA NA NAJan-07-2013 43 138 5,690 46 11.0Jan-14-2013 10 13 6,330 50 12.0Jan-21-2013 7 68 6,110 48 12.0Jan-28-2013 10 38 5,970 50 10.0Feb-04-2013 12 44 5,760 39 11.0Feb-11-2013 12 71 5,600 30 11.0Feb-18-2013 16 79 5,100 27 10.0Feb-25-2013 20 90 4,850 26 9.9Mar-04-2013 16 83 5,230 30 9.9Mar-11-2013 9 81 5,550 26 10.0Mar-18-2013 12 107 5,120 22 10.0Mar-25-2013 12 53 5,730 33 10.0

Note: Weekly results for specific conductance, selenium, and boron from composite of seven daily samples.



PRELIMINARY RESULTS

Table 7. Weekly water quality monitoring at Station B (discharge from San Luis Drain), taken from grab samples.


PARAMETERFlow

TotalSuspended

SolidsTemperature pH Specific

ConductanceSelenium

(total) Boron

DATA SOURCE SLDMWA Panoche DD USBR USBR USBR USBR USBR

UNITS cfs mg/L °C . µS/cm µg/L mg/LJan-03-2013 15 21 6.6 7.9 4,910 28 8.2Jan-08-2013 48 21 7.9 8.0 4,640 26 8.0Jan-15-2013 16 32 5.2 8.1 4,930 33 9.5Jan-22-2013 13 22 7.9 8.1 4,800 32 8.5Jan-29-2013 17 39 9.6 8.0 5,140 35 9.8Feb-05-2013 16 33 11.5 8.1 4,920 37 8.6Feb-12-2013 17 45 9.9 8.3 4,860 29 8.8Feb-19-2013 20 52 12.0 8.0 4,870 26 9.0Feb-26-2013 24 35 10.4 8.0 4,700 26 9.0Mar-05-2013 19 34 14.8 8.3 4,360 23 8.5Mar-12-2013 13 42 14.6 8.1 4,770 33 8.8Mar-19-2013 13 37 16.9 8.5 4,550 20 8.2Mar-29-2013 12 70 18.3 8.8 4,310 17 8.1

Table 8. Weekly water quality monitoring at Station C (Mud Slough North upstream of drainage discharges).


PARAMETER Flow Temperature pH SpecificConductance


DATA SOURCE calculated ++ USBR USBR USBR USBR USBR

UNITS cfs °C . µS/cm µg/L mg/LJan-03-2013 126 . 6.3 8.0 1,870 0.6 1.4Jan-08-2013 158 . 7.7 8.1 1,670 0.4 1.3Jan-15-2013 112 . 4.8 8.1 1,960 0.4 1.5Jan-22-2013 73 . 9.0 7.8 2,310 < 0.4 1.8Jan-29-2013 86 . 9.0 8.0 2,310 <0.8 1.9Feb-05-2013 74 . 11.5 8.0 2,290 0.5 2.0Feb-12-2013 76 . 10.2 8.2 2,300 0.4 2.0Feb-19-2013 83 . 11.5 7.8 2,210 0.4 1.9Feb-26-2013 106 . 10.3 7.9 2,030 0.6 1.8Mar-05-2013 163 . 14.5 8.0 2,190 1.0 2.0Mar-12-2013 166 . 15.1 7.9 2,020 0.7 1.9Mar-19-2013 170 . 15.7 8.1 2,330 0.7 2.3Mar-29-2013 58 . 19.4 8.1 2,450 0.6 2.0

++ Calculated flow value. Flow at Station C = flow at Station D - flow at Station B.



PRELIMINARY RESULTS

Table 9. Weekly water quality monitoring at Station D (Mud Slough North downstream of drainage discharges).


PARAMETER Flow Temperature Turbidity pH SpecificConductance


DATA SOURCE USGS USBR USBR USBR USBR USBR USBR

UNITS cfs °C NTU . µS/cm µg/L mg/L

Jan-03-2013 141 6.4 10 7.8 2,190 3.6 2.2Jan-08-2013 206 7.7 15 7.9 2,440 6.4 2.8Jan-15-2013 128 5.0 NA 8.0 2,410 4.8 2.5Jan-22-2013 86 8.8 9 8.0 2,760 4.5 2.8Jan-29-2013 103 9.0 16 7.9 2,770 5.8 3.2Feb-05-2013 90 11.3 14 7.8 2,880 7.2 3.0Feb-12-2013 93 9.9 18 8.0 2,840 5.8 3.4Feb-19-2013 103 11.6 24 7.8 2,810 5.0 3.3Feb-26-2013 130 10.5 32 8.0 2,600 4.3 3.2Mar-05-2013 182 14.9 45 8.0 2,450 3.3 2.6Mar-12-2013 179 15.3 77 7.9 2,260 2.9 2.4Mar-19-2013 183 15.4 100 8.0 2,510 2.0 2.9Mar-29-2013 70 19.5 48 8.2 2,970 3.4 3.4

Table 10. Weekly water quality monitoring at Station I2 (Mud Slough backwater downstream of Station D).


PARAMETER Temperature Turbidity pH SpecificConductance


DATA SOURCE USBR USBR USBR USBR USBR USBR

UNITS °C NTU . µS/cm µg/L mg/LJan-03-2013 Site Inaccessible NA NA NA NA NA NAJan-08-2013 In Early January NA NA NA NA NA NAJan-15-2013 . 3.8 NA 8.0 2,870 4.4 2.5Jan-22-2013 . 9.0 12 7.5 7,980 4.2 2.8Jan-29-2013 Site Inaccessible NA NA NA NA NA NAFeb-05-2013 Late January NA NA NA NA NA NAFeb-12-2013 through NA NA NA NA NA NAFeb-19-2013 mid-February NA NA NA NA NA NAFeb-26-2013 . 10.3 45 7.9 3,910 4.1 3.2Mar-05-2013 . 15.0 35 8.0 3,350 3.3 2.8Mar-12-2013 . 14.4 64 7.9 2,460 3.0 2.4Mar-19-2013 . 16.1 40 8.0 2,640 2.1 2.9Mar-29-2013 No Flow NA NA NA NA NA NA



PRELIMINARY RESULTS

Table 11. Weekly water quality monitoring at Station F (Salt Slough at Lander Avenue).


PARAMETER Flow Temperature pH SpecificConductance Selenium (total) Boron

DATA SOURCE USGS USBR USBR USBR USBR USBR

UNITS cfs °C . µS/cm µg/L mg/LJan-03-2013 124 6.5 7.4 1,750 0.4 0.9Jan-08-2013 160 7.6 7.6 1,540 0.5 0.7Jan-15-2013 130 5.1 7.7 1,720 0.5 0.9Jan-22-2013 118 7.8 7.4 1600 0.4 0.8Jan-29-2013 106 8.8 7.6 1700 < 0.8 0.9Feb-05-2013 93 10.7 6.9 1880 0.8 0.9Feb-12-2013 100 9.1 7.5 1,860 < 0.4 0.96Feb-19-2013 207 10.9 7.2 1,300 0.7 0.6Feb-26-2013 307 9.4 7.2 1,210 0.6 0.5Mar-05-2013 292 13.8 7.0 1,310 0.7 0.6Mar-12-2013 218 13.9 7.1 1,580 0.4 0.7Mar-19-2013 203 15.4 7.5 1,570 0.6 0.7Mar-29-2013 149 18.3 7.3 1,720 0.6 0.8

PRELIMINARY RESULTS

Table 12. Weekly water quality monitoring at Station G (San Joaquin River at Fremont Ford).


PARAMETER Flow Temperature pH SpecificConductance Selenium (total) Boron


UNITS cfs °C . µS/cm µg/L mg/LJan-03-2013 382 6.1 8.0 1,020 < 0.4 0.4Jan-08-2013 573 7.0 8.6 594 < 0.4 0.2Jan-15-2013 299 5.0 7.9 1,350 < 0.4 0.5Jan-22-2013 240 7.7 8.1 1,580 < 0.4 0.6Jan-29-2013 202 9.0 7.8 1,670 < 0.8 0.7Feb-05-2013 167 11.6 8.0 1,810 0.5 0.8Feb-12-2013 158 9.9 8.0 2,250 < 0.4 0.9Feb-19-2013 232 11.0 7.6 1,440 0.6 0.6Feb-26-2013 340 9.8 8.0 1,360 0.6 0.5Mar-05-2013 337 14.6 7.9 1,430 0.6 0.6Mar-12-2013 296 14.8 8.0 1,670 0.5 0.7Mar-19-2013 251 16.2 7.9 1,800 0.6 0.7Mar-29-2013 189 19.3 8.0 1,980 0.6 0.8



PRELIMINARY RESULTS

Table 13. Weekly water quality monitoring at Station J (Camp 13 Ditch).


PARAMETER Flow .Specific

ConductanceSelenium

(total) BoronDATA SOURCE SLDMWA†† . Panoche DD Panoche DD Panoche DD

UNITS cfs . µS/cm µg/L mg/LJan-02-2013 10 . . 281 0.8 0.1Jan-07-2013 15 . . 400 1.5 U 0.2Jan-14-2013 15 . . 448 1.0 0.3Jan-22-2013 15 . . 363 1.5 U 0.2Jan-28-2013 15 . . 455 1.4 U 0.3Feb-04-2013 15 . . 607 1.2 0.4 UFeb-11-2013 15 . . 593 0.9 0.3Feb-19-2013 5 . . 790 1.3 0.4 UFeb-25-2013 5 . . 655 1.0 0.3Mar-04-2013 5 . . 540 0.9 0.3Mar-11-2013 5 . . 618 1.1 0.3Mar-18-2013 5 . . 693 1.5 0.4Mar-25-2013 5 . . 968 1.6 0.6 U

Table 14. Weekly water quality monitoring at Station K (Agatha Canal).


PARAMETER Flow . .Specific

ConductanceSelenium

(total) BoronDATA SOURCE SLDMWA†† . . Panoche DD Panoche DD Panoche DD

UNITS cfs . . µS/cm µg/L mg/LJan-02-2013 50 . . 346 0.8 0.2Jan-07-2013 50 . . 452 1.1 0.3Jan-14-2013 50 . . 501 1.0 0.3Jan-22-2013 75 . . 349 0.9 0.2Jan-28-2013 75 . . 438 1.3 0.3Feb-04-2013 75 . . 556 1.1 0.3Feb-11-2013 75 . . 556 0.9 0.3Feb-19-2013 65 . . 621 0.8 0.3Feb-25-2013 65 . . 757 0.9 0.5Mar-04-2013 0 . . 653 1.1 0.4Mar-11-2013 0 . . 1,400 < 0.4 1.8 UMar-18-2013 0 . . 1,590 0.5 3.0 UMar-25-2013 0 . . 2,100 0.7 2.7 U



PRELIMINARY RESULTS

Table 15. Weekly water quality monitoring at Station L2 (San Luis Canal at splits).



ConductanceSelenium


UNITS cfs . . µS/cm µg/L mg/LJan-02-2013 NA . . 539 0.6 0.4Jan-07-2013 NA . . 933 0.5 0.9Jan-14-2013 NA . . 1,510 1.0 1.4Jan-22-2013 NA . . 1,470 0.9 1.4Jan-28-2013 NA . . 1,090 < 0.8 1.1Feb-04-2013 NA . . 1,160 1.0 1.1Feb-11-2013 NA . . 2,020 1.5 2.4 UFeb-19-2013 NA . . 1,340 0.9 1.3Feb-25-2013 NA . . 1,130 1.3 1.0Mar-04-2013 NA . . 2,200 2.7 U 2.5 UMar-11-2013 NA . . 2,340 2.3 U 2.9 UMar-18-2013 NA . . 2,990 2.9 U 3.6 UMar-25-2013 NA . . 1,770 1.7 1.8

Table 16. Weekly water quality monitoring at Station M2 (Santa Fe Canal at weir).



ConductanceSelenium


UNITS cfs . . µS/cm µg/L mg/LJan-02-2013 NA . . 549 0.5 0.4Jan-07-2013 NA . . 1,260 0.8 1.4Jan-14-2013 NA . . 1,290 0.9 1.4Jan-22-2013 NA . . 1,250 1.0 1.4Jan-28-2013 NA . . 1,100 0.9 1.2Feb-04-2013 NA . . 1,170 1.1 1.1Feb-11-2013 NA . . 1,020 0.8 1.1Feb-19-2013 NA . . 1,420 0.9 1.3Feb-25-2013 NA . . 1,250 1.0 1.2Mar-04-2013 NA . . 1,730 2.0 U 1.9Mar-11-2013 NA . . 1,560 0.8 1.6Mar-18-2013 NA . . 2,160 0.9 2.5Mar-25-2013 NA . . 2,260 1.1 2.5



PRELIMINARY RESULTS

Table 17. Weekly water quality monitoring at Station H1 (Above Newman WW (previously SJR at Hills Ferry)).(Collected data intended for use with biological monitoring.)See Table 34 for explanation of footnotes and agency abbreviations.

PARAMETER . . . SpecificConductance


DATA SOURCE . . . SLDMWA SLDMWA SLDMWA

UNITS . . . µS/cm µg/L mg/LJan-03-2013 . . . 461 1.7 1.1Jan-09-2013 . . . 449 1.5 1.1Jan-16-2013 . . . 583 1.8 1.3Jan-23-2013 . . . 408 1.2 1.0Jan-30-2013 . . . 734 2.0 1.5Feb-06-2013 . . . 452 1.5 1.1Feb-13-2013 . . . 781 2.6 1.8Feb-27-2013 . . . 1,790 1.9 1.2Mar-06-2013 . . . 1,810 1.6 1.3Mar-13-2013 . . . 2,250 8.8 U 1.5Mar-20-2013 . . . 2,290 1.4 1.7Mar-27-2013 . . . 1,910 1.6 1.3

Note: In October of 2012 samples were collected upstream of Station H1. Site name will be changed to Site R (SJR at China Island)under the 2013 Monitoring Plan.

Table 18. Weekly water quality monitoring at Station H2 (San Joaquin River at Hills Ferry).(Collected data intended for use with biological monitoring.)See Table 34 for explanation of footnotes and agency abbreviations.

PARAMETER Flow . . SpecificConductance


DATA SOURCE USGS . . SLDMWA SLDMWA SLDMWA

UNITS cfs . . µS/cm µg/L mg/L

Jan-03-2013 630 . . NA NA NAJan-09-2013 865 . . NA NA NAJan-16-2013 523 . . NA NA NAJan-23-2013 439 . . NA NA NAJan-30-2013 401 . . NA NA NAFeb-06-2013 363 . NA NA NAFeb-13-2013 335 . . NA NA NAFeb-27-2013 436 . . NA NA NAMar-06-2013 489 . . NA NA NAMar-13-2013 429 . . NA NA NAMar-20-2013 418 . . NA NA NAMar-27-2013 293 . . NA NA NA



PRELIMINARY RESULTS

Table 19. Weekly water quality monitoring at Station N (San Joaquin River at Crow’s Landing).


PARAMETER Flow Temperature pH SpecificConductance

Selenium (total) Boron


UNITS cfs °C . µS/cm µg/L mg/LJan-03-2013 1,050 6.4 7.8 1,020 0.9 0.6Jan-08-2013 1,200 7.5 8.0 863 0.8 0.5Jan-15-2013 883 5.5 8.0 1,290 1.0 0.8Jan-22-2013 733 8.1 8.1 1,400 1.0 0.8Jan-29-2013 687 9.3 7.9 1,480 1.2 0.9Feb-05-2013 613 11.5 8.1 1,560 1.3 0.9Feb-12-2013 570 9.8 8.2 1,620 1.2 1.0Feb-19-2013 588 11.5 7.9 1,420 1.2 0.9Feb-26-2013 673 10.6 8.0 1,440 1.1 0.9Mar-05-2013 720 15.1 8.0 1,510 1.4 1.0Mar-12-2013 695 14.8 8.1 1,610 1.2 1.1Mar-19-2013 769 16.4 8.0 1,680 0.9 1.2Mar-29-2013 511 18.7 8.1 1,760 0.9 1.0

Table 20. Weekly water quality monitoring at Central California Irrigation District Main Canal at Russell Avenue (MER510).


PARAMETER . . .Specific

ConductanceSelenium

(total) BoronDATA SOURCE . . . USBR USBR USBR

UNITS . . . µS/cm µg/L mg/LJan-02-2013 . . . 306 1.0 0.2Jan-07-2013 . . . 408 1.4 U 0.2Jan-14-2013 . . . 501 1.3 U 0.3Jan-22-2013 . . . 330 1.0 0.2Jan-28-2013 . . . 455 1.1 0.3Feb-04-2013 . . . 602 1.1 0.4 UFeb-11-2013 . . . 672 1.0 0.4 UFeb-19-2013 . . . 740 1.1 0.4 UFeb-25-2013 . . . 712 0.9 0.4 UMar-04-2013 . . . 666 0.9 0.4 UMar-11-2013 . . . 669 1.0 0.4 UMar-18-2013 . . . 682 1.7 0.4Mar-25-2013 . . . 674 1.1 0.4

U = results are determined to be an outlier at the time of data validation



Table 21. Summary of fathead minnow (Pimephales promelas ) larvae survival in 7-day tests using water samplescollected from April 2012 to March 2013. Each value is the mean of 4 replicates with 10 fish in each replicate.See Table 28 for explanation of footnotes and agency abbreviations.

LOCATION Station B Station C Station D Station F Canal Control

DATA SOURCE SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA

UNITS % % % % % %Apr-2012 98 100 98 95 93 93May-2012 98 88 98 88 90 95Jun-2012 95 100 100 98 100 98Jul-2012 68 90 98 98 95 98Aug-2012 65 93 100 100 93 93Sep-2012 98 100 100 95 98 93Oct-2012 NA NA NA NA NA NANov-2012 100 93 100 95 98 100Dec-2012 NA NA NA NA NA NAJan-2013 NA NA NA NA NA NAFeb-2013 NA NA NA NA NA NAMar-2013 98 98 98 93 95 88

Table 22. Summary of fathead minnow (Pimephales promelas ) larvae growth in 7-day tests using water samplescollected from April 2012 to March 2013. Each value is the mean of 4 replicates with 10 fish in each replicate.See Table 28 for explanation of footnotes and agency abbreviations.



UNITS mg mg mg mg mg mgApr-2012 0.39 0.35 0.34 0.40 0.34 0.34May-2012 0.32 0.32 0.36 0.34 0.30 0.31Jun-2012 0.34 0.37 0.39 0.38 0.38 0.36Jul-2012 0.27 0.33 0.39 0.37 0.34 0.36Aug-2012 0.22 0.33 0.31 0.30 0.33 0.30Sep-2012 0.33 0.27 0.31 0.32 0.32 0.34Oct-2012 NA NA NA NA NA NANov-2012 0.29 0.33 0.34 0.33 0.28 0.35Dec-2012 NA NA NA NA NA NAJan-2013 NA NA NA NA NA NAFeb-2013 NA NA NA NA NA NAMar-2013 0.39 0.37 0.37 0.38 0.32 0.33

Table 23. Summary of Daphnia magna survival in 7-day tests using water samples collected fromApril 2012 to March 2013. Each value is the mean of 10 replicates with 1 animal in each replicate.See Table 28 for explanation of footnotes and agency abbreviations.



UNITS % % % % % %Apr-2012 100 80 90 100 100 90May-2012 90 90 80 90 100 100Jun-2012 90 80 90 90 100 100Jul-2012 90 20* 40* 100 100 100Aug-2012 40* 100 100 100 100 100Sep-2012 90 100 90 80 90 100Oct-2012 NA NA NA NA NA NANov-2012 80 90 100 90 90 100Dec-2012 NA NA NA NA NA NAJan-2013 NA NA NA NA NA NAFeb-2013 NA NA NA NA NA NAMar-2013 90 100 90 100 100 100



PRELIMINARY RESULTS

Table 24. Summary of Daphnia magna reproduction in 7-day tests using water samples collected fromApril 2012 to March 2013. Each value is the mean of 10 replicates with 1 animal in each replicate.See Table 28 for explanation of footnotes and agency abbreviations.

LOCATION Station B Station C Station D Station FDelta Mendota

CanalLaboratory

ControlDATA SOURCE SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA

UNITS neonates per female neonates per female neonates per female neonates per female neonates per female neonates per femaleApr-2012 35.4 30.0 33.7 27.7 31.4 25.4May-2012 33.0* 39.7 40.2 42.2 47.2 38.9Jun-2012 41.9 37.7 33.1 29.8 35.7 28.3Jul-2012 56.3 24.1* 36.4 54.3 46.8 55.8Aug-2012 10.2* 25.0 26.2 27.3 29.3 24.5Sep-2012 28.2 26.2 34.6 18.2* 29.7 24.2Oct-2012 NA NA NA NA NA NANov-2012 25.7 21.1 23.8 21.6 22.6 22.8Dec-2012 NA NA NA NA NA NAJan-2013 NA NA NA NA NA NAFeb-2013 NA NA NA NA NA NAMar-2013 32.9 28.9 32.7 36.2 34.8 31.7

Table 25. Summary of Selenastrum capricornutum growth in 4-day tests using water samples collected fromApril 2012 to March 2013. Each value is the mean of 4 replicates.See Table 28 for explanation of footnotes and agency abbreviations.


CanalLaboratory

ControlDATA SOURCE SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA

UNITS 105 cells/mL 105 cells/mL 105 cells/mL 105 cells/mL 105 cells/mL 105 cells/mLApr-2012 22.2 30.9 27.5 24.4 23.4 23.5May-2012 18.1 8.3* 20.2 21.1 19.5 16.7Jun-2012 21.8 27.7 27.1 34.3 23.1 16.3‡Jul-2012 23.8 22.8 23.3 26.2 25.8 27.2Aug-2012 24.3 29.5 27.8 32.3 27.5 23.1Sep-2012 13.7* 19.0 17.4 20.2 14.4 16.8Oct-2012 NA NA NA NA NA NANov-2012 14.1* 25.4 24.7* 29.3 26.7 19.4Dec-2012 NA NA NA NA NA NAJan-2013 NA NA NA NA NA NAFeb-2013 NA NA NA NA NA NAMar-2013 19.1* 22.8 22.7 19.2* 24.8 20.2



PRELIMINARY RESULTS

Table 26. Summary of selenium concentrations in grab water samples collected at study stations for use inlaboratory toxicity tests, January 2013 to March 2013.



CanalDATA SOURCE SLDMWA/USBR SLDMWA/USBR SLDMWA/USBR SLDMWA/USBR SLDMWA/USBR

UNITS µg/L µg/L µg/L µg/L µg/LJan-17-2013 NA NA NA NA NAJan-19-2013 NA NA NA NA NAJan-21-2013 NA NA NA NA NAFeb-17-2013 NA NA NA NA NAFeb-19-2013 NA NA NA NA NAFeb-21-2013 NA NA NA NA NAMar-04-2013 24 0.9 3.7 0.6 < 0.4Mar-06-2013 24 0.7 3.3 0.5 < 0.4Mar-08-2013 24 0.6 3.7 0.5 < 0.4

Table 27. Summary of total suspended solids concentrations in grab water samples collected at studystations for use in laboratory toxicity January 2013 to March 2013.See Table 28 for explanation of footnotes and agency abbreviations.

LOCATION Station B Station C Station D Station F Canal

DATA SOURCE SLDMWA SLDMWA SLDMWA SLDMWA SLDMWA

UNITS mg/L mg/L mg/L mg/L mg/LJan-17-2013 NA NA NA NA NAJan-19-2013 NA NA NA NA NAJan-21-2013 NA NA NA NA NAFeb-17-2013 NA NA NA NA NAFeb-19-2013 NA NA NA NA NAFeb-21-2013 NA NA NA NA NAMar-04-2013 41 66 73 17 13Mar-06-2013 50 94 95 28 15Mar-08-2013 70 109 84 20 10



PRELIMINARY RESULTS

Table 28. Monthly Flow and Salinity of Water at San Luis Drain, Station B.

See Table 34 for explanation of footnotes and agency abbreviations.PARAMETER Flow at Station B Salinity at Station B

Mean daily Total FW EC TDS Salt loadUNITS cfs acre-feet µS/cm mg/L tons

Oct-2011 16 980 2,996 2,217 2,950Nov-2011 16 980 2,566 1,899 2,530Dec-2011 18 1,110 2,934 2,171 3,280Jan-2012 15 950 2,672 1,977 2,550Feb-2012 20 1,160 2,838 2,100 3,310Mar-2012 24 1,460 3,663 2,711 5,380Apr-2012 11 660 4,368 3,232 2,900May-2012 11 660 4,774 3,533 3,170Jun-2012 13 790 4,782 3,539 3,800Jul-2012 13 790 4,936 3,653 3,920Aug-2012 9 540 4,975 3,682 2,700Sep-2012 7 410 4,657 3,446 1,920Oct-2012 11 660 3,422 2,532 2,270Nov-2012 15 890 3,454 2,556 3,090Dec-2012 21 1,280 4,061 3,005 5,230Jan-2013 19 1,150 4,575 3,386 5,300Feb-2013 19 1,060 4,719 3,492 5,030Mar-2013 16 970 4,846 3,586 4,730

Note: EC to TDS conversion = 0.74

Water Year Averages and TotalsPARAMETER Mean daily flow Total flow FW EC TDS Salt load

UNITS cfs acre-feet µS/cm mg/L tonsWY 1997 52 37,560 4,257 3,150 160,910WY 1998 64 45,950 4,438 3,280 204,970WY 1999 45 32,310 4,650 3,440 151,160WY 2000 43 31,260 4,301 3,180 135,190WY 2001 39 28,250 4,191 3,100 119,100WY 2002 39 28,400 4,069 3,010 116,260WY 2003 38 27,270 4,319 3,200 118,680WY 2004 38 27,700 4,173 3,090 116,410WY 2005 42 30,160 4,315 3,190 130,850WY 2006 36 25,970 4,605 3,410 120,440WY 2007 26 18,540 4,235 3,130 78,920WY 2008 22 15,670 4,153 3,070 65,430WY 2009 18 13,160 4,254 3,060 54,770WY 2010 20 14,520 4,618 3,420 67,540WY 2011 26 18,510 4,497 3,330 83,830WY 2012 14 10,490 3,847 2,847 38,410

WY 2013 to date 17 6,010 4,180 3,093 25,650

Calendar Year TotalsPARAMETER Mean daily flow Total flow FW EC TDS Salt load

UNITS cfs acre-feet µS/cm mg/L tonsCY 1997 52 37,490 4,354 3,220 164,180CY 1998 64 46,240 4,563 3,380 212,560CY 1999 45 32,250 4,532 3,360 147,370CY 2000 42 30,210 4,189 3,100 127,370CY 2001 39 28,010 4,200 3,110 118,470CY 2002 39 28,460 4,155 3,070 118,830CY 2003 38 27,550 4,282 3,170 118,770CY 2004 39 28,290 4,129 3,060 117,730CY 2005 41 29,610 4,420 3,270 131,680CY 2006 36 25,890 4,589 3,395 119,540CY 2007 25 17,990 4,129 3,056 74,770CY 2008 22 15,860 4,096 3,030 65,360CY 2009 18 12,920 4,367 3,115 54,730CY 2010 20 14,710 4,580 3,390 67,820CY 2011 25 18,020 4,200 3,110 76,220CY 2012 14 10,250 4,050 2,997 40,240

CY 2013 to date 18 3,180 4,713 3,488 15,060Note: All totals and averages calculated from USGS preliminary data.



PRELIMINARY RESULTS

Table 29. Monthly Flow and Salinity of Water at Mud Slough, Station D.

See Table 34 for explanation of footnotes and agency abbreviations.PARAMETER Flow at Station D Salinity at Station D


Oct-2011 126 7,770 1,277 881 9,310Nov-2011 163 9,720 1,426 984 13,010Dec-2011 120 7,350 2,075 1,432 14,310Jan-2012 125 7,680 2,091 1,443 15,070Feb-2012 107 6,150 2,635 1,818 15,210Mar-2012 132 8,120 2,816 1,943 21,450Apr-2012 51 3,040 3,444 2,377 9,830May-2012 34 2,100 2,979 2,055 5,870Jun-2012 48 2,870 2,689 1,856 7,240Jul-2012 39 2,400 3,391 2,340 7,640Aug-2012 34 2,090 2,230 1,539 4,370Sep-2012 27 1,630 2,314 1,597 3,540Oct-2012 81 4,980 1,562 1,078 7,300Nov-2012 106 6,290 1,841 1,270 10,870Dec-2012 173 10,630 1,862 1,285 18,570Jan-2013 127 7,790 2,350 1,621 17,180Feb-2013 101 5,590 2,702 1,864 14,170Mar-2013 147 9,050 2,518 1,738 21,390



UNITS cfs acre-feet µS/cm mg/L tonsWY 1997 181 130,930 2,390 1,650 293,810WY 1998 257 182,580 2,600 1,790 444,470WY 1999 141 101,360 2,582 1,780 245,370WY 2000 131 94,440 2,496 1,720 220,910WY 2001 129 92,870 2,737 1,890 238,710WY 2002 104 75,280 2,809 1,940 198,620WY 2003 122 88,200 2,688 1,860 223,110WY 2004 120 87,190 2,704 1,870 221,740WY 2005 154 110,600 2,535 1,750 263,230WY 2006 160 116,100 2,273 1,570 247,900WY 2007 100 72,130 2,541 1,750 171,670WY 2008 85 61,630 2,767 1,910 160,090WY 2009 71 51,240 2,640 1,820 126,830WY 2010 90 64,840 2,726 1,880 165,780WY 2011 135 97,580 2,338 1,610 213,660WY2012 84 60,920 2,447 1,689 126,850

WY 2013 to date 122 44,330 2,139 1,476 89,480


UNITS cfs acre-feet µS/cm mg/L tonsCY 1997 174 125,450 2,471 1,700 290,040CY 1998 258 183,320 2,559 1,770 441,290CY 1999 137 98,740 2,588 1,790 240,370CY 2000 133 96,070 2,467 1,700 222,110CY 2001 123 88,890 2,768 1,910 230,900CY 2002 111 80,260 2,827 1,950 212,850CY 2003 119 85,750 2,621 1,810 211,080CY 2004 121 87,960 2,738 1,890 226,090CY 2005 160 115,030 2,513 1,730 270,640CY 2006 160 115,820 2,241 1,546 243,490CY 2007 86 61,940 2,611 1,801 151,730CY 2008 80 58,150 1,999 1,380 109,140CY 2009 75 54,260 2,760 1,775 130,990CY 2010 90 64,740 2,665 1,840 162,010CY 2011 139 100,510 2,291 1,580 215,980CY 2012 121 21,950 2,514 1,735 51,730




PRELIMINARY RESULTS

Table 30. Monthly Flow and Salinity of Water at Salt Slough, Station F.

See Table 34 for explanation of footnotes and agency abbreviations.PARAMETER Flow at Station F Salinity at Station F


Oct-2011 166 10,220 879 598 8,310Nov-2011 208 12,400 989 672 11,340Dec-2011 61 3,730 1,939 1,319 6,690Jan-2012 69 4,220 1,803 1,226 7,040Feb-2012 208 11,990 1,520 1,034 16,860Mar-2012 192 11,790 1,828 1,243 19,930Apr-2012 159 9,460 1,682 1,143 14,710May-2012 116 7,160 1,221 830 8,080Jun-2012 136 8,070 1,115 758 8,320Jul-2012 133 8,160 914 622 6,900Aug-2012 120 7,350 933 634 6,340Sep-2012 76 4,520 1,101 749 4,600Oct-2012 100 6,150 1,275 867 7,250Nov-2012 134 7,970 1,328 903 9,790Dec-2012 174 10,700 1,037 705 10,260Jan-2013 128 7,850 1,577 1,072 11,450Feb-2013 166 9,230 1,416 963 12,090Mar-2013 212 13,050 1,555 1,057 18,770



UNITS cfs acre-feet µS/cm mg/L tonsWY 1997 216 156,080 1,294 880 186,800WY 1998 273 196,090 1,387 940 250,680WY 1999 210 151,770 1,192 810 167,190WY 2000 195 141,050 1,314 890 170,730WY 2001 185 133,880 1,340 910 165,690WY 2002 145 104,880 1,445 980 139,780WY 2003 177 127,940 1,334 910 158,340WY 2004 170 123,330 1,296 880 147,600WY 2005 215 155,280 1,267 860 181,620WY 2006 234 168,800 1,189 810 185,950WY 2007 154 111,370 1,272 870 131,770WY 2008 125 90,930 1,099 750 92,750WY 2009 94 67,440 1,441 980 89,880WY 2010 146 105,310 1,365 930 133,200WY 2011 197 142,210 1,149 780 150,860WY 2012 137 99,070 1,327 902 119,120

WY 2013 to date 152 54,950 1,365 928 69,610


UNITS cfs acre-feet µS/cm mg/L tonsCY 1997 205 147,940 1,355 920 185,100CY 1998 281 201,370 1,292 880 241,000CY 1999 204 147,380 1,255 850 170,370CY 2000 194 140,370 1,284 870 166,090CY 2001 181 131,100 1,399 950 169,380CY 2002 161 116,600 1,403 950 150,650CY 2003 163 117,730 1,342 910 145,700CY 2004 170 123,500 1,285 870 146,130CY 2005 224 161,730 1,261 860 189,160CY 2006 232 167,460 1,163 793 180,680CY 2007 142 102,810 1,336 909 127,130CY 2008 120 86,890 1,046 710 83,900CY 2009 100 72,120 1,468 893 87,580CY 2010 150 108,300 1,362 930 136,980CY 2011 205 148,080 1,094 740 149,030CY 2012 135 97,540 1,313 893 120,080




PRELIMINARY RESULTS

Table 31. Monthly Flow and Salinity of Water at San Joaquin River at Fremont Ford, Station G.

See Table 34 for explanation of footnotes and agency abbreviations.PARAMETER Flow at Station N Salinity at Station N


Oct-2011 263 16,180 759 516 11,360Nov-2011 375 22,310 900 612 18,570Dec-2011 146 9,000 1,959 1,332 16,300Jan-2012 109 6,680 2,213 1,505 13,670Feb-2012 246 14,150 1,991 1,354 26,060Mar-2012 280 17,240 1,815 1,234 28,940Apr-2012 286 17,020 1,466 997 23,070May-2012 154 9,470 1,410 958 12,340Jun-2012 147 8,770 1,331 905 10,800Jul-2012 141 8,670 1,109 754 8,890Aug-2012 122 7,480 1,078 733 7,460Sep-2012 84 4,980 1,363 927 6,280Oct-2012 115 7,090 1,443 981 9,460Nov-2012 163 9,720 1,404 955 12,620Dec-2012 407 25,010 889 605 20,560Jan-2013 315 19,340 1,170 795 20,920Feb-2013 220 12,200 1,700 1,156 19,180Mar-2013 271 16,680 1,709 1,162 26,360



UNITS cfs acre-feet µS/cm mg/L tonsWY 1997 NA NA 1,387 940 NAWY 1998 NA NA 1,281 870 NAWY 1999 NA NA 1,433 980 NAWY 2000 NA NA 1,525 1,040 NAWY 2001 NA NA 1,761 1,200 NAWY 2002 NA NA 1,546 970 NAWY 2003 215 156,100 1,542 1,010 214,420WY 2004 223 161,760 1,554 1,020 224,390WY 2005 889 642,060 1,034 610 532,650WY 2006 2,670 1,931,210 863 530 1,392,020WY 2007 217 156,740 1,382 890 189,720WY 2008 206 148,330 1,611 1,100 221,900WY 2009 129 92,850 1,727 1,170 147,740WY 2010 395 286,220 1,003 680 264,700WY 2011 2,449 1,775,650 501 340 821,060WY 2012 196 141,950 1,449 986 183,740

WY 2013 to date 248 90,040 1,386 942 109,100


UNITS cfs acre-feet µS/cm mg/L tonsCY 1997 NA NA 1,466 1,000 NACY 1998 NA NA 1,221 830 NACY 1999 NA NA 1,463 1,000 NACY 2000 NA NA 1,517 1,030 NACY 2001 NA NA 1,857 1,230 NACY 2002 225 163,110 1,531 980 217,390CY 2003 194 140,470 1,572 1,040 198,680CY 2004 238 172,020 1,513 980 229,270CY 2005 897 647,690 992 590 519,710CY 2006 2,671 1,931,950 838 518 1,361,900CY 2007 193 139,080 1,523 993 187,760CY 2008 197 141,790 1,649 1,120 215,970CY 2009 142 102,020 1,651 986 136,870CY 2010 409 296,060 942 640 257,690CY 2011 2,464 1,786,170 463 320 777,340CY 2012 188 136,280 1,459 992 180,150




PRELIMINARY RESULTS

Table 32. Monthly Flow and Salinity of Water at San Joaquin River at Crow's Landing, Station N.

See Table 34 for explanation of footnotes and agency abbreviations.PARAMETER Flow at Station N Salinity at Station N


Oct-2011 1,630 100,150 442 274 37,370Nov-2011 1,120 66,770 738 457 41,540Dec-2011 670 41,440 1,318 817 46,060Jan-2012 590 36,280 1,466 909 44,840Feb-2012 640 36,700 1,575 976 48,730Mar-2012 800 49,010 1,636 1,014 67,610Apr-2012 660 39,360 1,500 930 49,780May-2012 840 51,890 724 449 31,670Jun-2012 490 29,130 1,154 716 28,350Jul-2012 370 22,640 1,237 767 23,610Aug-2012 330 20,470 1,130 701 19,500Sep-2012 300 17,690 1,127 699 16,810Oct-2012 530 32,700 798 495 22,000Nov-2012 580 34,330 931 577 26,950Dec-2012 990 61,100 866 537 44,620Jan-2013 880 54,290 1,130 701 51,740Feb-2013 610 34,080 1,490 924 42,830Mar-2013 680 41,820 1,594 988 56,220



UNITS cfs acre-feet µS/cm mg/L tonsWY 1997 5,407 3,844,610 820 510 2,666,620WY 1998 6,869 4,904,910 601 370 2,468,150WY 1999 1,412 1,015,480 902 560 773,390WY 2000 1,423 1,027,440 976 610 852,360WY 2001 903 653,430 1,162 720 639,840WY 2002 738 533,960 1,202 750 544,640WY 2003 753 546,130 1,244 770 571,910WY 2004 764 554,550 1,226 760 573,180WY 2005 2,381 1,721,000 722 450 1,053,250WY 2006 4,748 3,437,650 569 350 1,636,320WY 2007 838 607,180 1,103 680 561,520WY 2008 802 580,500 1,059 660 521,060WY 2009 468 336,670 1,273 790 361,720WY 2010 981 709,070 939 580 559,310WY 2011 4,428 3,192,490 463 290 1,259,120WY 2012 703 511,530 1,171 726 455,870

WY 2013 to date 712 258,320 1,135 704 244,360


UNITS cfs acre-feet µS/cm mg/L tonsCY 1997 5,063 3,590,680 975 600 2,929,990CY 1998 7,086 5,064,330 453 280 1,928,500CY 1999 1,207 864,600 1,017 630 740,790CY 2000 1,466 1,059,180 905 560 806,670CY 2001 882 638,210 1,174 730 633,610CY 2002 723 523,240 1,235 770 547,940CY 2003 718 521,480 1,258 780 553,190CY 2004 790 573,270 1,213 750 584,740CY 2005 2,428 1,755,440 697 430 1,026,580CY 2006 4,798 3,473,920 567 352 1,661,630CY 2007 740 535,270 1,099 682 496,160CY 2008 753 545,170 1,088 670 496,760CY 2009 490 353,040 1,270 660 316,760CY 2010 1,017 735,030 919 570 569,800CY 2011 4,519 3,259,660 421 260 1,152,620CY 2012 593 431,300 1,179 731 424,470

CY 2013 to date 723 130,190 1,405 871 150,790Note: All totals and averages calculated from USGS preliminary data.



PRELIMINARY RESULTS

Table 33. Summary of sediment monitoring results from March 2011 to March 2013. Concentrations in µg/g dry weight.

See Table 34 for explanation of footnotes and agency abbreviations.Station Code PARAMETER Selenium Organic Carbon Percent MoistureStation Name DEPTH 0-3 cm 3-8 cm Whole Core 0-3 cm 3-8 cm Whole Core 0-3 cm 3-8 cm Whole Core

SOURCE USBR USBR USBR USBR USBR USBR USBR USBR USBRUNITS µg/g (dry) µg/g (dry) µg/g (dry) % % % % % %

Station C: Mar-08-2011 <0.14 <0.15 0.30 0.31 0.19 0.81 32.20 36.70 25.90Mud Slough North Jun-01-2011 NA NA NA NA NA NA NA NA NAupstream of Sep-01-2011 NA NA NA NA NA NA NA NA NAdrainage discharges Nov-08-2011 NA NA <0.13 NA NA 0.38 NA NA 27.50

Mar-28-2012 NA NA <0.15 NA NA 0.26 NA NA 29.10Jun-06-2012 NA NA <0.15 NA NA 0.13 NA NA 34.90Sep-01-2012 NA NA <0.15 NA NA <0.70 NA NA 29.20Nov-01-2012 NA NA NA NA NA NA NA NA NAMar-01-2013 NA NA P NA NA 0.23 NA NA 24.00

Station D: Mar-08-2011 0.30 0.23 0.23 0.01 0.02 0.05 26.40 23.90 20.00Mud Slough North Dec-07-2010 0.28 0.30 0.32 0.06 0.11 0.08 19.10 18.90 26.90downstream of Mar-08-2011 0.30 0.23 0.23 0.01 0.02 0.05 26.40 23.90 20.00drainage discharges Jun-01-2011 NA NA NA NA NA NA NA NA NA

Sep-01-2011 NA NA NA NA NA NA NA NA NAJun-06-2012 NA NA 0.17 NA NA 0.18 NA NA 30.40Sep-01-2012 NA NA 0.42 NA NA <0.68 NA NA 25.90Nov-01-2012 NA NA NA NA NA NA NA NA NAMar-01-2013 NA NA P NA NA 0.12 NA NA 24.20

Station E: Mar-08-2011 1.90 1.90 0.69 0.84 0.77 0.72 43.40 50.20 37.00Mud Slough at Highway 140 Jun-01-2011 NA NA NA NA NA NA NA NA NA

Sep-01-2011 NA NA NA NA NA NA NA NA NANov-08-2011 NA NA 0.30 NA NA 0.55 NA NA 28.60Mar-28-2012 NA NA 0.24 NA NA 0.06 NA NA 21.80Jun-06-2012 NA NA 0.44 NA NA 0.60 NA NA 26.00Sep-01-2012 NA NA 0.83 NA NA <0.71 NA NA 32.90Nov-01-2012 NA NA NA NA NA NA NA NA NAMar-01-2013 NA NA P NA NA 0.51 NA NA 31.30

Station F: Mar-08-2011 NA NA NA NA NA NA NA NA NASalt Slough at Highway 165 Jun-01-2011 NA NA NA NA NA NA NA NA NA

Sep-01-2011 NA NA NA NA NA NA NA NA NANov-08-2011 NA NA <0.14 NA NA 0.10 NA NA 28.60Mar-28-2012 NA NA <0.15 NA NA 0.06 NA NA 33.20Jun-06-2012 NA NA 0.26 NA NA 0.78 NA NA 36.70Sep-01-2012 NA NA 0.29 NA NA 1.20 NA NA 39.80Nov-01-2012 NA NA NA NA NA NA NA NA NAMar-01-2013 NA NA P NA NA 0.35 NA NA 27.50

Station I2: Mar-08-2011 0.46 0.38 0.32 0.52 0.51 0.30 31.80 28.40 27.40Mud Slough: Jun-01-2011 NA NA NA NA NA NA NA NA NASeasonal backwater tributary Sep-01-2011 NA NA NA NA NA NA NA NA NA

Nov-08-2011 NA NA 6.90 NA NA 3.00 NA NA 53.90Mar-28-2012 NA NA 0.98 NA NA 0.51 NA NA 37.00Jun-06-2012 NA NA 0.40 NA NA 0.35 NA NA 29.60Sep-01-2012 NA NA 0.56 NA NA <0.68 NA NA 26.20Nov-01-2012 NA NA P NA NA NA NA NA NAMar-01-2013 NA NA P NA NA 0.40 NA NA 19.90



Table 34. Explanations of footnotes and agency abbreviations.

Footnote ExplanationCVRWQCB California Regional Water Quality Control Board, Central Valley RegionSLDMWA San Luis & Delta-Mendota Water Authority

USBR U.S. Bureau of ReclamationUSGS U.S. Geological Survey

e Estimated value. Not applicable< Less than MDL. If needed in calculation, use 1/2 MDL

NA Not analyzed - operator error, data will not be available in the futureNP Not Provided. Data may be available in the future.NT Not testedP Pending, data not available at this time but will be available in the future* Significantly reduced from Delta Mendota Canal (p<0.05)** Sample re-analyzed and result confirmed.† DMC/Lab Cl water failed to meet the survival (>80%) acceptability criteria.

†† Data from records of the Grassland Water District. Data is not subjected to the criteria documented in theCompliance Monitoring Program for the Use and Operation of the Grassland Bypass Project (1996) nor theQuality Assurance Project Plan for the GBP (1997 draft).

††† DMC water failed to meet the reproduction (>10 neonates/adult) acceptability criteria.†††† DMC water failed to meet minimum growth (106cell/mL) acceptability criteria.

‡ Control value exceeds suggested maximum variance (20%) acceptability criteria.‡‡ Fungal growth observed on test organisms.# New testing laboratory with reporting limit of 0.4 µg/L as of June 1998.v Based on definitive bioassay, NOEC is 50 percentS Source

EC Electrical conductivityFW Flow-weighted average concentrationG US Geological Survey published dataL Lawrence Berkeley Laboratory 15 minute flow and EC data

TDS Total dissolved solidsT Results obtained past holding timeU results are determined to be an outlier at the time of data validation


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