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Grassland Bypass Project Water Quality Monitoring Rudy Schnagl Central Valley Regional Water Quality Control Board 11/28/2011 DCRT Meeting 1 Terms WDRs Waste Discharge Requirements Discharger US Bureau of Reclamation and San

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11/28/2011 DCRT Meeting 1

Grassland Bypass Project Water Quality Monitoring

Rudy Schnagl

Central Valley Regional Water Quality Control Board

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11/28/2011 2

Terms

  • WDRs – Waste Discharge Requirements
  • Discharger – US Bureau of Reclamation and

San Luis and Delta-Mendota Water Authority

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11/28/2011 DCRT Meeting 3

Lower San Joaquin River Basin

Salt Slough Mud Slough Mendota Pool SJR near Vernalis Del Puerto Creek Orestimba Creek Stanislaus River Tuolumne River Merced River Grasslands Watershed (370,000 acres) Drainage Project Area (97,000 acres)

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11/28/2011 DCRT Meeting 4

Two Monitoring Programs

Required by WDRs Developed by Data Collection And Reporting Team

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11/28/2011 DCRT Meeting 5

Grassland Bypass Project Monitoring Sites

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11/28/2011 DCRT Meeting 6

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11/28/2011 DCRT Meeting 7

= Required by WDRs Grassland Bypass Project Monitoring Sites

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11/28/2011 DCRT Meeting 8

WDR Monitoring and Reporting Program

Surface Water Monitoring Sites

Merced River Salt Slough Mud Slough

  • Monitoring Site

San Luis Drain

Crows Landing Fremont Ford

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11/28/2011 DCRT Meeting 9

Constituents Monitored

  • Selenium
  • Molybdenum
  • Boron
  • Flow
  • pH
  • Electrical Conductivity
  • Total suspended solids
  • Temperature
  • Nutrient series

– Nitrate – Ammonia – Total Kjeldahl Nitrogen – Total Phosphorus – Ortho Phosphate – 3 species chronic toxicity – Sediment

  • Quality
  • Quantity
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11/28/2011 DCRT Meeting 10

Additional WDR Monitoring

  • Stormwater
  • Internal Wetland Water Supply Channels

(visual)

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11/28/2011 DCRT Meeting 11

Irrigated Lands Regulatory Program Monitoring Requirements (customized by area monitored)

  • E. Coli bacteria
  • Additional Metals
  • Additional Nutrients
  • Pesticides
  • 303(d) listed constituents
  • Sediment

– Toxicity – Pesticides – Other characteristics

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11/28/2011 DCRT Meeting 12

Questions

  • What adjustments are needed in

– Location – Frequency – Constituents – Types of analyses

  • Does the water quality sampling support evaluation
  • f other monitoring efforts?
  • How should the GBP Monitoring coordinate with San

Joaquin River Restoration Program and Irrigated lands Regulatory Program monitoring?

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Monitoring Results

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11/28/2011 DCRT Meeting 14

Concentration versus Load

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11/28/2011 DCRT Meeting 15

4,200 5,920 7,310 7,960 7,430 3,190 2,530 6,460 7,880 10,200 9,120 449 873 356 366 352 166 243 235 326 283 186 118 67 Pounds of Selenium

Figure 3. Annual Loads of Selenium in Salt Slough

Grassland Bypass Project

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11/28/2011 DCRT Meeting 16

GBP Annual Selenium Discharge

2,000 4,000 6,000 8,000 10,000 12,000 14,000 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Se Load (lbs)

WDR Critical Year Se Load Objectives 1986-96 Average (8,800 lbs) WDR Phase I WDR Phase II all WDR Wet Year Se Load Objectives Grassland Bypass Project

Wet Dr /Belo Normal Critical

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Applicable Water Quality Objectives

Boron (mg/L) Selenium (ug/L) Molybdenum (ug/L) Water Body Continuous Max Continuous Max Continuous Max Wetland Channels

  • 2

20

  • Salt Slough

2.0* 5.8 2 20 19 50 Mud Slough (north) 2.0* 5.8 5 (4-day ave.) 20 19 50 San Joaquin River upstream of Merced River 2.0* 5.8 5 (4-day ave.) 20 19 50 San Joaquin River btwn Merced River and Vernalis 0.8* 1.0** 2.0* 2.6** 5 (4-day ave.) 12 10 15

Continuous objectives are monthly means unless otherwise noted.

  • *WQO applies from 15 March through 15 September
  • ** WQO applies from 16 September through 14 March
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11/28/2011 DCRT Meeting 18

Mud Slough Downstream SLD Selenium (µg/L)

20 40 60 80 100 120 04-Oct- 95 04-Oct- 97 04-Oct- 99 04-Oct- 01 04-Oct- 03 04-Oct- 05 04-Oct- 07 04-Oct- 09 Selenium (µg/L) Mud Slough Downstream SLD Selenium (µg/L)

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Selenium in SJR at Lander and SJR at Fremont Ford (above project area)

5 10 15 20 25 25-Oct-95 25-Oct-96 25-Oct-97 25-Oct-98 25-Oct-99 25-Oct-00 25-Oct-01 25-Oct-02 25-Oct-03 25-Oct-04 25-Oct-05 25-Oct-06 25-Oct-07 25-Oct-08 25-Oct-09 25-Oct-10 Selenium (µg/L) SJR at Lander Selenium (µg/L) SJR at Fremont Ford Selenium (µg/L)

Due to the large number of non-detects in the SJR at Lander data set the non-detects were assigned the numerical value of 0.2 µg/L instead of using the Reasonable Potential Calculator. Non-detects for the SJR at Fremont Ford data set were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 20

SJR at Crows Landing Selenium (µg/L)

2 4 6 8 10 12 14 16 18 20

01-Oct-95 01-Oct-97 01-Oct-99 01-Oct-01 01-Oct-03 01-Oct-05 01-Oct-07 01-Oct-09

Selenium (µg/L) SJR at Crows Landing Selenium (µg/L)

Non-detects were assigned numerical values using the Reasonable Potential Calculator

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11/28/2011 DCRT Meeting 21

Selenium in SJR at Crows Landing (grab samples), SJR at Patterson, SJR at Maze, and SJR at Airport

1 2 3 4 5 6 7 8 9 06-Oct-95 06-Oct-96 06-Oct-97 06-Oct-98 06-Oct-99 06-Oct-00 06-Oct-01 06-Oct-02 06-Oct-03 06-Oct-04 06-Oct-05 06-Oct-06 06-Oct-07 06-Oct-08 06-Oct-09 06-Oct-10 Selenium (µg/L) SJR at Crows Landing Selenium (µg/L) SJR at Patterson Selenium (µg/L) SJR at Maze Selenium (µg/L) SJR at Airport Selenium (µg/L)

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11/28/2011 DCRT Meeting 22

Selenium in SJR at Crows Landing and at Airport Way

1 2 3 4 5 6 7 8 9 10/6/1995 10/6/1996 10/6/1997 10/6/1998 10/6/1999 10/6/2000 10/6/2001 10/6/2002 10/6/2003 10/6/2004 10/6/2005 10/6/2006 10/6/2007 10/6/2008 10/6/2009 10/6/2010 Selenium (ug/L)

SJR at Crows Landing Selenium (µg/L) SJR at Airport Selenium (µg/L)

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Selenium at Agatha Canal, Camp 13 Drain, CCID Main, San Luis Canal, and Santa Fe Canal

20 40 60 80 100 120 27-Oct-95 27-Oct-96 27-Oct-97 27-Oct-98 27-Oct-99 27-Oct-00 27-Oct-01 27-Oct-02 27-Oct-03 27-Oct-04 27-Oct-05 27-Oct-06 27-Oct-07 27-Oct-08 27-Oct-09 27-Oct-10

Selenium (µg/L)

Agatha Canal Selenium (µg/L) Camp 13 Drain Selenium (µg/L) CCID Main Selenium (µg/L) San Luis Canal Selenium (µg/L) Santa Fe Canal Selenium (µg/L)

Non-detects were assigned numerical values using the Reasonable Potential Calculator.

26.4 µg/L (Agatha Canal) 44 µg/L (Agatha Canal)

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11/28/2011 DCRT Meeting 24

Boron in SJR at Crows Landing (samples collected with an autosampler)

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 02-Oct-95 02-Oct-96 02-Oct-97 02-Oct-98 02-Oct-99 02-Oct-00 02-Oct-01 02-Oct-02 02-Oct-03 02-Oct-04 02-Oct-05 02-Oct-06 02-Oct-07 02-Oct-08 02-Oct-09 02-Oct-10 Boron (mg/L) SJR at Crows Landing Boron (mg/L)

Non-detects were assigned numerical values using the Reasonable Potential Calculator

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Nutrients in SJR at Crows Landing

5 10 15 20 25 25-May-00 25-May-02 25-May-04 25-May-06 25-May-08 25-May-10 mg/L SJR at Crows Landing Ammonia (mg/L) SJR at Crows Landing Nitrate (mg/L) SJR at Crows Landing TKN (mg/L) SJR at Crows Landing Orthophosphate (mg/L) SJR at Crows Landing Phosphorous (mg/L)

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11/28/2011 DCRT Meeting 27

20 40 60 80 100 120 140 160 Selenium (µg/L)

Selenium in SLD at Inflow and Terminous

SLD Selenium (µg/L) Inflow to SLD Selenium (µg/L)

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11/28/2011 DCRT Meeting 28

1 2 3 4 5 6 7 8 9 Selenium (µg/L)

Selenium in SJR at Crows Landing (grab samples), SJR at Patterson, SJR at Maze, and SJR at Airport

SJR at Crows Landing Selenium (µg/L) SJR at Patterson Selenium (µg/L) SJR at Maze Selenium (µg/L) SJR at Airport Selenium (µg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 29

1 2 3 4 5 6 7 8 9 10 Boron (mg/L)

Mud Slough Downstream SLD Boron (mg/L)

Mud Slough Downstream SLD Boron (mg/L)

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11/28/2011 DCRT Meeting 30

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 Boron (mg/L)

Boron in SJR at Crows Landing (grab samples), SJR at Patterson, SJR at Maze, and SJR at Airport

SJR at Crows Landing Boron (mg/L) SJR at Patterson Boron (mg/L) SJR at Maze Boron (mg/L) SJR at Airport Boron (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 31

2 4 6 8 10 12 14 16 18 mg/L

Nutrients in SJR at Fremont Ford

SJR at Fremont Ford Ammonia (mg/L) SJR at Fremont Ford Nitrate (mg/L) SJR at Fremont Ford TKN (mg/L) SJR at Fremont Ford Orthophosate (mg/L) SJR at Fremonth Ford Phosphorous (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 32

1 2 3 4 5 6 7 8 9 10 mg/L

Nutrients in Mud Slough above SLD

Mud Slough Upstream SLD Ammonia (mg/L) Mud Slough Upstream SLD Nitrate (mg/L) Mud Slough Upstream SLD TKN (mg/L) Mud Slough Upstream SLD Orthophosphate (mg/L) Mud Slough Upstream SLD Phosphorous (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 33

20 40 60 80 100 120 mg/L

Nutrient Levels in SLD at Terminous

SLD Ammonia (mg/L) SLD Nitrate (mg/L) SLD TKN (mg/L) SLD Orthophosphate (mg/L) SLD Phosphorous (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 34

10 20 30 40 50 60 70 80 90 mg/L

Nutrients in Mud slough Downstream of SLD

Mud Slough Downstream SLD Ammonia (mg/L) Mud Slough Downstream SLD Nitrate (mg/L) Mud Slough Downstream SLD TKN (mg/L) Mud Slough Downstream SLD Orthophosphate (mg/L) Mud Slough Downstream SLD Phosphorous (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 35

5 10 15 20 25 mg/L

Nutrients in SJR at Crows Landing

SJR at Crows Landing Ammonia (mg/L) SJR at Crows Landing Nitrate (mg/L) SJR at Crows Landing TKN (mg/L) SJR at Crows Landing Orthophosphate (mg/L) SJR at Crows Landing Phosphorous (mg/L) Non-detects were assigned numerical values using the Reasonable Potential

  • Calculator. Non-detects for

Ammonia results were assigned numerical values of half the reporting limit because there were not enough data to use the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 36

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Boron (mg/L)

Boron in SJR at Lander and SJR at Fremont Ford (above project area)

SJR at Lander Boron (mg/L) SJR at Fremont Ford Boron (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 37

0.5 1 1.5 2 2.5 3 3.5 4 4.5 Boron (mg/L)

Boron in Salt Slough and Mud Slough above SLD

Salt Slough Boron (mg/L) Mud Slough Upstream SLD Boron (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 38

2 4 6 8 10 12 14 Boron (mg/L)

Boron at Agatha Canal, Camp 13 Drain, CCID Main, San Luis Canal, and Santa Fe Canal

Agatha Canal Boron (mg/L) Camp 13 Drain Boron (mg/L) CCID Main Boron (mg/L) San Luis Canal Boron (mg/L) Santa Fe Canal Boron (mg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.

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11/28/2011 DCRT Meeting 39

5 10 15 20 25 Boron (mg/L)

Boron in San Luis Drain at Inflow and Terminous

SLD Boron (mg/L) Inflow to SLD Boron (mg/L)

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11/28/2011 DCRT Meeting 40

5 10 15 20 25 30 35 40 Selenium (µg/L)

Selenium in Salt Slough and Mud Slough above SLD

Salt Slough Selenium (µg/L) Mud Slough Upstream SLD Selenium (µg/L) Non-detects were assigned numerical values using the Reasonable Potential Calculator.