Shasta River Watershed TMDLs Shasta River Watershed TMDLs Meeting - - PowerPoint PPT Presentation

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Shasta River Watershed TMDLs Shasta River Watershed TMDLs Meeting - - PowerPoint PPT Presentation

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Shasta River Watershed TMDLs Shasta River Watershed TMDLs Meeting of the Technical Advisory Group Meeting of the Technical Advisory Group and Interested Parties and Interested Parties November 3, 2005 November 3, 2005 Purpose of Meeting

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SLIDE 1

Shasta River Watershed TMDLs Shasta River Watershed TMDLs

Meeting of the Technical Advisory Group Meeting of the Technical Advisory Group and Interested Parties and Interested Parties

November 3, 2005 November 3, 2005

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SLIDE 2

Purpose of Meeting Purpose of Meeting

  • To review why we are developing TMDLs

and review components of a TMDL

  • To present Shasta River TMDL results
  • To discuss components of Shasta River TMDL

Implementation Plan

  • To get your input/feedback and answer your

questions

  • To identify next steps in process
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SLIDE 3

Outline Outline

  • Introductions

Introductions

  • TMDL background/framework

TMDL background/framework

  • Conceptual models and analytical approach

Conceptual models and analytical approach

  • Temperature and dissolved oxygen TMDL

Temperature and dissolved oxygen TMDL findings findings

  • Implementation Plan components discussion

Implementation Plan components discussion

  • Next steps in process

Next steps in process

  • Feedback

Feedback – – Q &A Q &A

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SLIDE 4

Introductions Introductions

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SLIDE 5

Why are we developing Why are we developing Shasta TMDLs? Shasta TMDLs?

Statute Consent Decree

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SLIDE 6

Legal Basis for Shasta TMDLs Legal Basis for Shasta TMDLs

Statute Federal Clean Water Act §§ 301-308 (adopted 1972)

  • 1. Identify surface waters

not meeting water quality standards

  • 2. Develop TMDLs
  • 3. Adopt TMDLs in the

Basin Plan

Consent Decree

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SLIDE 7

Statute Consent Decree 14 Plaintiffs sued the U.S. EPA to compel TMDL development in North Coast Consent Decree in 1997 resulted in timeline to complete TMDLs

Legal Basis for Shasta TMDLs Legal Basis for Shasta TMDLs

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SLIDE 8

TMDLs TMDLs – – 1997 Consent Decree 1997 Consent Decree

All Consent Decree waterbodies must have TMDL established by 2007. Shasta TMDLs must be adopted by Regional Water Board in 2006.

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SLIDE 9
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SLIDE 10

Klamath Basin TMDLs

1998 and 2001

2005

2005 2004 2006 2006

2006 Tributary completions precede mainstem Klamath TMDL Tributary completions precede mainstem Klamath TMDL

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SLIDE 11

Shasta River Impairments Shasta River Impairments

  • Organic enrichment / low dissolved

Organic enrichment / low dissolved

  • xygen
  • xygen –

– 1992 1992

  • Elevated stream temperature

Elevated stream temperature – – 1994 1994

  • Cold water fishery

Cold water fishery

  • Recreational use

Recreational use

  • Municipal and domestic water supply

Municipal and domestic water supply

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SLIDE 12

What is a TMDL? What is a TMDL?

Amount of a pollutant that a Amount of a pollutant that a waterbody can receive and still waterbody can receive and still attain & maintain WQS attain & maintain WQS T Total

  • tal M

Maximum aximum D Daily aily L Load

  • ad

WQS are water quality objectives WQS are water quality objectives plus beneficial uses plus beneficial uses

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SLIDE 13

A TMDL is a framework for: A TMDL is a framework for:

  • Evaluating and quantifying the factors that

Evaluating and quantifying the factors that contribute to water quality problems contribute to water quality problems

  • Developing a strategy (called an Action or

Developing a strategy (called an Action or Implementation Plan in CA) to attain water Implementation Plan in CA) to attain water quality standards quality standards

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SLIDE 14

A TMDL develops a pollution budget and a strategy so that A TMDL develops a pollution budget and a strategy so that the two boxes become equal; it represents the amount of the two boxes become equal; it represents the amount of pollution the waterbody can receive and still meet water pollution the waterbody can receive and still meet water quality standards quality standards

Loading Capacity Loading Capacity Natural Non-point Sources Point Sources Natural Non-point Sources Point Sources

Loading Capacity

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SLIDE 15

Components of a TMDL

Implementation Plan Technical TMDL Analysis

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SLIDE 16

TMDL Process TMDL Process – – Implement Implement Action Plan Action Plan

Implementation Actions Reassessment Adaptive Management

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SLIDE 17

Outline Outline

  • Introductions

Introductions

  • TMDL background/framework

TMDL background/framework

  • Conceptual models and analytical

Conceptual models and analytical approach approach

  • Temperature and dissolved oxygen TMDL

Temperature and dissolved oxygen TMDL findings findings

  • Implementation Plan concepts discussion

Implementation Plan concepts discussion

  • Next steps in process

Next steps in process

  • Feedback

Feedback – – Q &A Q &A

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SLIDE 18

Water Temperature Processes Water Temperature Processes

Bedrock Coarse sediment Fine sediment (e.g. colloidal, organic) External tributary

Advection and diffusion (thermal energy) Qbed

Qsw Qlw

(in)

Qlw

(out)

Qe Qc

Temperature

Qsw loading decreases with increasing depth

Qb

External inputs Solar Radiation Water diversions Conduction Convection Evaporative loss

Tributaries Groundwater Tailwater

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SLIDE 19

Factors affecting Shasta River Factors affecting Shasta River temperature: temperature:

  • Solar radiation and shade

Solar radiation and shade

  • Tailwater return flow inputs

Tailwater return flow inputs

  • Surface water diversions

Surface water diversions

  • Spring inflows

Spring inflows

  • Impoundments

Impoundments

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SLIDE 20

Processes Affecting Dissolved Oxygen Processes Affecting Dissolved Oxygen

CBOD Respiration SOD Reaeration Photosynthesis

Dissolved Oxygen Sources

  • Reaeration
  • Photosynthesis

Dissolved Oxygen Demands

  • Respiration
  • Sediment Oxygen Demand (SOD)
  • Carbonaceous Deoxygenation (CBOD)
  • Nitrogenous Oxygen Demand (NBOD)

Stream Bed Water Surface Aquatic Vegetation

NBOD

NO2/NO3

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SLIDE 21

Factors affecting Shasta River Factors affecting Shasta River dissolved oxygen levels: dissolved oxygen levels:

  • Temperature

Temperature

  • Photosynthesis and respiration of aquatic

Photosynthesis and respiration of aquatic plants; affected by: plants; affected by:

  • Temperature

Temperature

  • Light (shade and water clarity)

Light (shade and water clarity)

  • Nutrients

Nutrients

  • Sediment oxygen demand

Sediment oxygen demand

  • Inputs of organic material (CBOD) and

Inputs of organic material (CBOD) and nutrients (NBOD) nutrients (NBOD)

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SLIDE 22

TMDL development approach TMDL development approach

  • Developed monitoring plan to test working

Developed monitoring plan to test working hypotheses hypotheses

  • Monitoring and assessment

Monitoring and assessment

  • Empirical data analysis

Empirical data analysis

  • Application of TVA River Modeling System

Application of TVA River Modeling System and supporting models and supporting models – – “Tool Box” “Tool Box”

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SLIDE 23

Analytical Toolbox Analytical Toolbox

  • Objective: compliment RMS in the

Objective: compliment RMS in the assessment of water quality assessment of water quality

  • Toolbox

Toolbox

1. 1.

Benthic Algae Model Benthic Algae Model

2. 2.

Mass Balance Mass Balance

3. 3.

Residence Time Residence Time

4. 4.

Mixing Model Mixing Model

5. 5.

Primary Productivity Calculator Primary Productivity Calculator

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SLIDE 24

Monitoring / Assessment Monitoring / Assessment Overview: Overview:

  • Hourly DO measurements at 16 sites

Hourly DO measurements at 16 sites

  • Hourly temperature measurements at

Hourly temperature measurements at 19 sites 19 sites

  • Grab samples at 42 sites

Grab samples at 42 sites

  • SOD measurements at 18 sites

SOD measurements at 18 sites

  • Aquatic vegetation survey of 27 miles

Aquatic vegetation survey of 27 miles

  • f river plus Shastina
  • f river plus Shastina
  • Stream bottom substrate

Stream bottom substrate characterization at 20 sites characterization at 20 sites

  • Riparian vegetation classification of 27

Riparian vegetation classification of 27 miles of river miles of river

  • Flow measurements at 9 sites

Flow measurements at 9 sites

  • Thermal infrared survey of Shasta

Thermal infrared survey of Shasta River and key tributaries River and key tributaries

  • Stable isotope samples from 21 sites

Stable isotope samples from 21 sites

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SLIDE 25

Available Work Products Available Work Products

http://www.waterboards.ca.gov/northcoast/progra http://www.waterboards.ca.gov/northcoast/progra ms/tmdl/shasta/shasta.html ms/tmdl/shasta/shasta.html

  • Shasta River Dissolved Oxygen TMDL

Shasta River Dissolved Oxygen TMDL Work Plan (NCRWQCB 2003) Work Plan (NCRWQCB 2003)

  • Shasta River Water Quality Conditions

Shasta River Water Quality Conditions – – 2002 & 2003 (NCRWQCB 2004) 2002 & 2003 (NCRWQCB 2004) and (USGS 2004) and (USGS 2004)

  • Shasta River Water Quality Related

Shasta River Water Quality Related Investigations Investigations – – 2004 (NCRWQCB 2004) 2004 (NCRWQCB 2004)

  • Thermal Infrared Study (Watershed Sciences

Thermal Infrared Study (Watershed Sciences 2004) 2004)

  • Lake Shastina Limnology (Watercourse 2005)

Lake Shastina Limnology (Watercourse 2005)

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SLIDE 26

Shasta River Modeling Shasta River Modeling

  • TVA RMS: Extension of Abbott (2002) and

TVA RMS: Extension of Abbott (2002) and Deas (2003) to include: Deas (2003) to include:

  • Dissolved Oxygen

Dissolved Oxygen

  • Forcing Functions

Forcing Functions

  • Biochemical Oxygen Demand

Biochemical Oxygen Demand

  • Nitrogenous Oxygen Demand

Nitrogenous Oxygen Demand

  • Sediment Oxygen Demand

Sediment Oxygen Demand

  • Attached Algae Standing Crop

Attached Algae Standing Crop

  • Updated geometry

Updated geometry – – flow, water quality, and shade flow, water quality, and shade representation representation

  • Extended from Dwinnell Dam to mouth

Extended from Dwinnell Dam to mouth

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SLIDE 27

Modeling Tasks Modeling Tasks

  • Calibration and validation

Calibration and validation

  • Sensitivity testing

Sensitivity testing

  • Scenarios

Scenarios

  • Objective: To determine a suite of conditions

Objective: To determine a suite of conditions that result in water quality standards that result in water quality standards attainment under critical conditions attainment under critical conditions

  • “Water quality compliance” scenario

“Water quality compliance” scenario

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SLIDE 28

Water quality compliance scenario Water quality compliance scenario conditions: conditions:

  • Increased riparian shade

Increased riparian shade

  • Reduced inflow temperatures

Reduced inflow temperatures

  • Reduced aquatic plant standing crop

Reduced aquatic plant standing crop

  • Reduced SOD rates

Reduced SOD rates

  • Reduced NBOD inputs

Reduced NBOD inputs

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SLIDE 29

Water quality compliance scenario conditions: Water quality compliance scenario conditions:

  • Increased riparian shade:

Increased riparian shade:

Decreased percent transmittance

  • Reduced inflow temperatures:

Reduced inflow temperatures:

Big Springs Creek (Baseline minus 4°

C)

Parks Creeks (Baseline minus 2°

C)

Tailwater return flows (= river temperature)

  • Reduced aquatic plant standing crop:

Reduced aquatic plant standing crop:

50% reduction in photosynthetic and

respiration rates

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SLIDE 30

Water quality compliance scenario conditions: Water quality compliance scenario conditions:

  • Reduced SOD rates:

Reduced SOD rates:

50% reduction of SOD rates behind

impoundments

  • Reduced NBOD input concentrations:

Reduced NBOD input concentrations:

  • Dwinnell Dam (67%),
  • Tailwater return flows (= river concentration),

and

  • Yreka Creek (32%)
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SLIDE 31

Baseline versus estimated potential Baseline versus estimated potential percent transmittance percent transmittance

Left Bank Right Bank

0% 25% 50% 75% 100% 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 River Mile Average Percent Transmittance Baseline Reach Average Percent Transmittance TMDL Reach Average Percent Transmittance No Solar Passage (Full Shade) Full Solar Passage (No Shade)

0% 25% 50% 75% 100% 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 River Mile Average Percent Transmittance Baseline Reach Average Percent Transmittance TMDL Reach Average Percent Transmittance No Solar Passage (Full Shade) Full Solar Passage (No Shade)

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SLIDE 32

Outline Outline

  • Introductions

Introductions

  • TMDL background/framework

TMDL background/framework

  • Conceptual models and analytical approach

Conceptual models and analytical approach

  • Temperature and dissolved oxygen TMDL

Temperature and dissolved oxygen TMDL findings findings

  • Implementation Plan components discussion

Implementation Plan components discussion

  • Next steps in process

Next steps in process

  • Feedback

Feedback – – Q &A Q &A

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SLIDE 33 A12 H W Y 2 6 3 Y R EK A A G E R R D MON T AG U E A G E R R D OL D H I G H W A Y 99 ST A TE HI G H W A Y 3 H W Y 3 U S H W Y 97 STAT E HI G HW A Y 9 7 I 5 I 5 I 5 M O NT A G U E G R E NADA RD

Montague Grenada Weed Yreka

L ittle Sha s t a R ive r Yr ek a C r e e k G u y s G u l c h P a r k s C r e e k P ar ks C r e e k W h i t n e y Cr e ek B i g S p r i n gs

S h a sta R i v e r S h a s ta R i v e r

S h a stina E a s t L

  • u

i e R

  • a

d D w i n n ell Da m

a t h

2 3 1 5 9 8 11 7 6 4 10

Shasta Watershed North Coast Region I 5 California Oregon Nevada

Shasta River watershed location

Shasta River Watershed Water Quality Model Output Locations Explanation

Highway or Main Road Urbanized Area Klamath River Shasta River Main Stem Major Tributary Lake Model Output Location

  • 1. Mouth
  • 2. Hwy 263
  • 3. Anderson Grade Road
  • 4. Yreka-Ager Road
  • 5. Hwy 3
  • 6. Montague Grenada Road
  • 7. Freeman Road
  • 8. A-12
  • 9. GID/Hueseman diversion
  • 10. Big Springs Cr
  • 11. East Louie Road

2 4 6 8 1 Miles

Map prepared by Bruce Gwynne; NCRWQCB e mail: bgwynne@waterboards.ca.gov telephone: 707-576-2661
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SLIDE 34

Model Results Model Results -

  • Temperature

Temperature

Louie Road - Calibration Louie Road - WQ Compliance

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SLIDE 35

Montague-Grenada Road - Calibration Montague-Grenada Road - WQ Compliance

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SLIDE 36

Mouth - Calibration Mouth – WQ Compliance

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SLIDE 37

Temperature Results Summary Temperature Results Summary

  • Temperatures decreased at all river

Temperatures decreased at all river locations during each simulation period locations during each simulation period

  • 1

1° ° C C – – 4.5 4.5° ° C decrease from baseline C decrease from baseline

  • Greatest decrease around GID, Hwy 3,

Greatest decrease around GID, Hwy 3, and Y and Y-

  • A Road

A Road

  • On average, temperature decreases are

On average, temperature decreases are largest in August largest in August

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SLIDE 38

Model Results Model Results – – Dissolved Oxygen Dissolved Oxygen

Montague-Grenada Road - Calibration

M o n t a g u e G r e n a d a R o a d 0 . 0 2 . 0 4 . 0 6 . 0 8 . 0 1 0 . 0 1 2 . 0 1 4 . 0 1 2 2 4 3 6 4 8 6 0 7 2 8 4 9 6 H o u r DO, mg/L a u g _ b a s e lin e _ D O m a s t e r 1 _ a u g _ D O

Montague-Grenada Road - WQ Compliance

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SLIDE 39

Highway 3 - Calibration

H ig h w a y 3 0 .0 2 .0 4 .0 6 .0 8 .0 1 0 .0 1 2 .0 1 4 .0 1 2 2 4 3 6 4 8 6 0 7 2 8 4 9 6 H o u r DO, mg/L a u g _ b a s e lin e _ D O m a s te r 1 _ a u g _ D O

Highway 3 – WQ Compliance

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SLIDE 40

Mouth - Calibration

M o u th 0 .0 2 .0 4 .0 6 .0 8 .0 1 0 .0 1 2 .0 1 4 .0 1 2 2 4 3 6 4 8 6 0 7 2 8 4 9 6 H o u r DO, mg/L a u g _ b a s e lin e _ D O m a s te r 1 _ a u g _ D O

Mouth – WQ Compliance

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SLIDE 41

DO Results Summary DO Results Summary

  • Magnitude of DO fluctuations reduced at all

Magnitude of DO fluctuations reduced at all locations locations

  • Minimum DO concentrations increased to

Minimum DO concentrations increased to above 7.0 mg/L at all locations above 7.0 mg/L at all locations

  • Minimum DO concentrations increased by

Minimum DO concentrations increased by 0.5 mg/L to 2.0 mg/L; average increase of 0.5 mg/L to 2.0 mg/L; average increase of 1.5 mg/L 1.5 mg/L

  • Greatest increase in minimum DO

Greatest increase in minimum DO concentration at GID and Hwy A12 concentration at GID and Hwy A12

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SLIDE 42

Flow Increase Scenarios Flow Increase Scenarios

  • Objective: Evaluate affect of flow

Objective: Evaluate affect of flow increases on temperature and DO increases on temperature and DO

1. 1.

Increased Shasta River baseline flows by Increased Shasta River baseline flows by 50% at Dwinnell Dam, Big Springs 50% at Dwinnell Dam, Big Springs Creek, GID, Hwy A12, M Creek, GID, Hwy A12, M-

  • G Road, and A

G Road, and A-

  • G Road; applied in step

G Road; applied in step-

  • wise fashion

wise fashion

2. 2.

Combined increased flows with water Combined increased flows with water quality compliance scenario conditions quality compliance scenario conditions

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SLIDE 43

Big Springs Creek 150% Flow Scenario Results Big Springs Creek 150% Flow Scenario Results -

  • Temperature

Temperature

Maximum Temperatures Minimum Temperatures

Baseline Baseline Baseline Baseline Big Springs Cr Q150 WQ Compliance WQ Compliance plus Big Spring Q150 Big Springs Cr Q150 WQ Compliance WQ Compliance plus Big Spring Q150

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SLIDE 44

Increased Flow Scenarios Increased Flow Scenarios – – Temperature Summary Temperature Summary

  • 50% flow increases result in reductions in maximum

50% flow increases result in reductions in maximum stream temperatures at all river locations stream temperatures at all river locations

  • Maximum stream temperatures decreased by 0.1

Maximum stream temperatures decreased by 0.1° ° C to C to 2.4 2.4° ° C C

Largest reduction at Anderson-Grade Road of 2.4°

C due to 150% Big Springs Creek flow plus WQ compliance conditions

  • Effect on minimum stream temperatures mixed

Effect on minimum stream temperatures mixed

Largest reduction at M-G Road of 0.7°

C due to 150% Big Springs Creek flow plus WQ compliance conditions

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SLIDE 45

Big Springs Creek 150% Flow Scenario Results Big Springs Creek 150% Flow Scenario Results Dissolved Oxygen Dissolved Oxygen

Minimum Dissolved Oxygen

Baseline Baseline Big Springs Cr Q150 WQ Compliance WQ Compliance plus Big Spring Q150

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SLIDE 46

Increased Flow Scenarios Increased Flow Scenarios – – Dissolved Oxygen Summary Dissolved Oxygen Summary

  • Effect of increased flows on maximum DO

Effect of increased flows on maximum DO is mixed is mixed

  • Effect of increased flows on minimum DO

Effect of increased flows on minimum DO is also mixed is also mixed

Largest increase in minimum DO of 0.4 mg/L

at Freeman Lane due to 150% Big Springs Creek flow plus WQ compliance conditions

Largest decrease in minimum DO of 0.1 mg/L

at Yreka-Ager Road due to 150% Big Springs Creek flow

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SLIDE 47

Temperature TMDL Temperature TMDL

  • Potential solar radiation transmittance

Potential solar radiation transmittance

  • Shasta River: reach

Shasta River: reach-

  • scale average solar radiation

scale average solar radiation tranmittance tranmittance

  • Tributaries: site potential riparian shade

Tributaries: site potential riparian shade

  • No net increase in temperature from

No net increase in temperature from tailwater tailwater return flows return flows

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SLIDE 48

Dissolved Oxygen TMDL Dissolved Oxygen TMDL

(12,702) (12,702) (21,308) (21,308) Total Daily Demand (lbs/day) 21,208 21,208 42,417 42,417 Total Daily Production (lbs/day) Water Quality Compliance / TMDL Condition Baseline Condition Shasta River Dissolved Oxygen Load

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SLIDE 49

DO TMDL continued DO TMDL continued

4 4 Sediment oxygen demand 9 9 Nitrogenous oxygen demand 24 24 Carbonaceous oxygen demand 63 63 Respiration Photosynthesis Percent of Total Dissolved Oxygen Demand Dissolved Oxygen Process

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SLIDE 50

DO TMDL Load Allocations DO TMDL Load Allocations

DO TMDL Load Allocations

1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

D w i n n e l l t

  • R

i v e r s i d e R i v e r s i d e t

  • P

a r k s P a r k s t

  • B

i g S p r i n g s A 1 2 t

  • F

r e e m a n F r e e m a n t

  • M
  • G

R d M

  • G

R d t

  • Y
  • A

R d Y

  • A

R d t

  • A
  • G

R d A

  • G

R d t

  • Y

r e k a C r Y r e k a C r t

  • M
  • u

t h

Daily DO Demand (lbs/day) Baseline TMDL

30 % 45% 38% 36% 37% 46% 50% 49% 49%

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SLIDE 51

Questions? Questions?

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SLIDE 52

Shasta Watershed TMDL Shasta Watershed TMDL Draft Implementation Plan Draft Implementation Plan

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SLIDE 53

What is TMDL Implementation? What is TMDL Implementation?

Steps and actions necessary to achieve the Steps and actions necessary to achieve the TMDLs and meet water quality standards. TMDLs and meet water quality standards.

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SLIDE 54

Shasta River Implementation Shasta River Implementation Actions Actions

Main Points: Main Points:

  • Encourage and promote protection and

Encourage and promote protection and restoration of riparian vegetation. restoration of riparian vegetation.

  • Control nutrient and other oxygen

Control nutrient and other oxygen consuming constituent waste consuming constituent waste discharges from human discharges from human-

  • caused

caused sources. sources.

  • Encourage water management that

Encourage water management that improves water quality. improves water quality.

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SLIDE 55

Implementation Approach Implementation Approach in the Shasta River in the Shasta River

Identify, encourage, and build upon on Identify, encourage, and build upon on-

  • going restoration efforts that are linked to

going restoration efforts that are linked to recovery of impaired waters and recovery of impaired waters and prevention of further degradation of water prevention of further degradation of water quality and beneficial uses. quality and beneficial uses.

  • Federal Agencies

Federal Agencies

  • Tribes

Tribes

  • State Agencies

State Agencies

  • Local Agencies

Local Agencies

  • Watershed Groups

Watershed Groups

  • Other Stakeholders

Other Stakeholders

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SLIDE 56

Implementation Approach Implementation Approach in the Shasta River in the Shasta River

  • Identify gaps in on

Identify gaps in on-

  • going restoration

going restoration efforts. efforts.

  • Develop strategies with stakeholders

Develop strategies with stakeholders to address those gaps. to address those gaps.

  • Continue existing permit programs.

Continue existing permit programs.

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SLIDE 57

Implementation Approach Implementation Approach in the Shasta River in the Shasta River

  • Use the iterative adaptive

Use the iterative adaptive management process to make management process to make progress toward attaining and progress toward attaining and maintaining water quality standards. maintaining water quality standards.

Implement Implement Monitor Monitor Evaluate Evaluate Adjust Adjust

slide-58
SLIDE 58

Implementation Approach Implementation Approach in the Shasta River in the Shasta River

  • Attain TMDLs

Attain TMDLs

  • Likely to take 20, 30, to 40 years.

Likely to take 20, 30, to 40 years.

  • Trend toward DO compliance.

Trend toward DO compliance.

  • Trend toward temperature desired conditions.

Trend toward temperature desired conditions.

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SLIDE 59

Regional Board Actions Regional Board Actions

  • Permitting

Permitting

  • Nonpoint Source Policy

Nonpoint Source Policy

  • 401 Certification

401 Certification

  • Wastewater treatment permits

Wastewater treatment permits

  • Caltrans

Caltrans stormwater stormwater permit permit

  • Enforcement

Enforcement

  • Adaptive Management

Adaptive Management

slide-60
SLIDE 60

Grazing and Riparian Activities Grazing and Riparian Activities

  • RWB encourages inventory, prioritization

RWB encourages inventory, prioritization and repair of sources of nutrients and and repair of sources of nutrients and

  • ther oxygen consuming constituents &
  • ther oxygen consuming constituents &

high water temperatures. high water temperatures.

  • RWB can require Grazing and Riparian

RWB can require Grazing and Riparian Management Plans on an as Management Plans on an as-

  • needed, site

needed, site-

  • specific basis.

specific basis.

slide-61
SLIDE 61

Water Management Activities Water Management Activities

  • Understand tailwater and runoff water

Understand tailwater and runoff water conditions and effects conditions and effects

  • Manage for water quality attainment

Manage for water quality attainment

  • tailwater

tailwater

  • impoundments

impoundments

  • wastewater

wastewater

  • stormwater runoff

stormwater runoff

  • RWB can require Water Management

RWB can require Water Management Plans on an as Plans on an as-

  • needed basis

needed basis

slide-62
SLIDE 62

Timber Harvest Activities Timber Harvest Activities

  • USFS

USFS

  • Waiver

Waiver

  • MOU

MOU

  • Private Timber

Private Timber

  • Waiver

Waiver

  • General Permit

General Permit

slide-63
SLIDE 63

Roads Roads

  • Caltrans

Caltrans Stormwater Permit Stormwater Permit

slide-64
SLIDE 64

Irrigation Districts and Diverters Irrigation Districts and Diverters

  • Evaluate tailwater conditions, use, reuse,

Evaluate tailwater conditions, use, reuse, effects effects

  • Manage tailwater to improve water quality

Manage tailwater to improve water quality

  • Reduce water quality impacts of existing

Reduce water quality impacts of existing impoundments below Dwinnell Dam impoundments below Dwinnell Dam

  • Dwinnell Dam

Dwinnell Dam – – RWB still evaluating RWB still evaluating implementation options implementation options

slide-65
SLIDE 65

Private Landowners Private Landowners

  • Grazing Management

Grazing Management

  • Water Management

Water Management

  • Vegetation Conservation and Restoration

Vegetation Conservation and Restoration

slide-66
SLIDE 66

Shasta RCD, CRMP, NRCS, Shasta RCD, CRMP, NRCS, UCCE UCCE

  • RWB shall work cooperatively with these

RWB shall work cooperatively with these

  • rganizations.
  • rganizations.
  • RWB shall encourage:

RWB shall encourage:

  • implementation of the Shasta Restoration Plan.

implementation of the Shasta Restoration Plan.

  • assistance to landowners in developing and

assistance to landowners in developing and implementing nutrient and other oxygen consuming implementing nutrient and other oxygen consuming constituents and temperature control practices. constituents and temperature control practices.

slide-67
SLIDE 67

Urban and Developed Areas Urban and Developed Areas

  • Comply with existing permits, orders, and

Comply with existing permits, orders, and programs (Yreka, Montague and Weed) programs (Yreka, Montague and Weed)

  • Assess nutrient and other oxygen

Assess nutrient and other oxygen consuming constituent loads from consuming constituent loads from developed areas developed areas

  • stormwater runoff

stormwater runoff

slide-68
SLIDE 68

Timber Owners Timber Owners

  • Use existing permits

Use existing permits

  • RWB shall work with Habitat

RWB shall work with Habitat Conservation Plan holders to develop Conservation Plan holders to develop

  • wnership
  • wnership-
  • wide Waste Discharge

wide Waste Discharge Requirements. Requirements.

slide-69
SLIDE 69

Summary Summary

  • Implementation actions are designed to

Implementation actions are designed to meet the DO and temperature TMDLs and meet the DO and temperature TMDLs and achieve water quality standards. achieve water quality standards.

slide-70
SLIDE 70

TMDL Schedule TMDL Schedule

  • TAG meeting (Yreka)

TAG meeting (Yreka) – – November ‘05 November ‘05

  • Interested Parties meeting (Eureka)

Interested Parties meeting (Eureka) – – December ‘05 December ‘05

  • Peer review of draft TMDL Report

Peer review of draft TMDL Report -

  • November ‘05

November ‘05

  • Public review of TMDL Report

Public review of TMDL Report – – February ‘06 February ‘06

  • Regional Water Board and Public Workshops on

Regional Water Board and Public Workshops on TMDL (Santa Rosa, Arcata, and Yreka) TMDL (Santa Rosa, Arcata, and Yreka) – – March ‘06 March ‘06

  • Regional Water Board Hearing on TMDL (Ferndale)

Regional Water Board Hearing on TMDL (Ferndale) – – May 2006 May 2006

  • State Water Board Workshop and Hearing on TMDL

State Water Board Workshop and Hearing on TMDL (Sacramento) (Sacramento) – – July/August 2006 July/August 2006

  • EPA approval of TMDL

EPA approval of TMDL – – January 2007 January 2007

  • TMDL implementation

TMDL implementation – – February 2007 February 2007

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SLIDE 71

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