tmdl development temperature tmdls in the rogue basin · 09/01/2019  · 303(d) list point sources...

Information Item 3: Siskiyou Streamside

Protections Review Progress Report

TMDL Development

&

Temperature TMDLs in the Rogue Basin

Board of Forestry

Public Meeting

January 9, 2019

Gene Foster

Oregon Department of Environmental QualityAGENDA ITEM A

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Presentation Overview

• Total Maximum Daily Load and Water Quality

Management Plan Development

• TMDL Implementation

• Rogue Basin TMDLs

• Siskiyou Georegion Water Quality Status & Trend

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TMDL and Adaptive Management Process

TMDL & WQMP Development

Implementation Plan Development

Adaptive Management Process:

Implement - Monitor - Share Information - Learn - Improve

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TMDL Development Process

• Identify water quality concerns

• Determine loading capacity and excess load

• Identify pollution sources and conditions contributing to

water quality concerns

• Point sources

• Nonpoint sources

• Link sources and conditions to water body

• Allocate pollutant loads that when implemented will result

in water quality standard attainment

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TMDL = WLAps + LAnps + LAbg + MOS + RCTemperature TMDLs

Load Allocation

Background Sources

LAbg

Pollutant

Loading

Current Conditions

303(d) list

Point

Sources

Non

point

Sources

Back

ground

Sources

Source

Identification

TMDL and Load

Reductions

MOSRCLAnpsWLAps

Excess Load

Loading

Capacity

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Temperature Water

Quality Standard

Load

Reduction

Biological Based

Numeric Criteria

Human Use

Allowance =

0.3 C

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ODAAg & Rural Residential WQ (Ag WQ Mngt Act)

ODFNonfederal Forests (Forest Practices Act)

BLM/FS/COEFederal Land Management

(TMDL Rule)

DEQPoint Source Permits

(CWA)

DMAs - Local Government

Urban and Rural NPS management(TMDL Rule)

TMDL Implementation & Authorities

OWEB, NRCS, FSA, DEQFunding Conservation

SWCD, OSU Ext, WSCEducation/Outreach

Private LandownersPrivate Land Management

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TMDL and WQMP Implementation Process

DMAs (DEQ)

• DMA’s submit TMDL IP’s

for DEQ review and

action

• DMAs submit annual

reports to DEQ

• DEQ reviews TMDL

Implementation Plans for

effectiveness

• DEQ may require plan

revisions

ODA

• ODA reviews and

revises area plans and

rules every two years

• DEQ reviews and

provides comment

• EQC may petition ODA

for changes

ODF

• ODF and Board of

Forestry administer

the Oregon Forest

Practices Act

• DEQ reviews and

provides comment

on FPA rules

• EQC may petition

Board for changes,

Board can petition

EQC to reconsider

WQS & TMDLs

Adaptive Management Process:

Implement - Monitor - Share Information - Learn - Improve

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Pollutant

Loading

Current Conditions:

303(d) list, TMDL

TMDL interim

Milestone # 1

Loading

Capacity

Allocations

Load

Reduction

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TMDL interim

Milestone # 2

Water Quality Standard

TMDL Implementation Timeline

Water Quality

Standards

Attainment

Adaptive Management Process:

Implement - Monitor - Share Information - Learn - Improve

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Rogue Basin Temperature TMDLs:

Waters Covered and Shade Allocations

• Applegate Subbasin (2003): All streams (& a Sediment

TMDL)

• Bear Creek Watershed (1992/2007): All perennial &

intermittent streams (& a Sediment TMDL)

• Lobster Creek (2002): Perennial streams

• Sucker Creek (2002): All streams

• Rogue River Basin (2008): All perennial and intermittent

streams

• Shade Allocations: Effective Shade @ System Potential

Vegetation

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Rogue River Shade: Current and Allocated

Effective Shade

0%

20%

40%

60%

80%

100%

0 50 100 150 200 250

eff

ective

sh

ad

e

river kilometer

Current Topographic System Potential Vegetation

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Elk Creek: Current and Allocated Effective

Shade

0%

20%

40%

60%

80%

100%

0 5 10 15 20 25

eff

ective s

hade

.

river kilometer

Current Topographic System Potential Vegetation

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Current Temperature Regime Example

(Elk Creek)

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• Majority of georegion

is forested

• Significant streamside

range, agriculture, and

urban areas

• Forested area is a mix

of federal and private

land

• Monitoring stations

spaced throughout

area

Station Location

& Land Cover

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• 8 of 10 monitoring

stations exceeding

spawning and/or

summer criteria

• 4 of 10 stations show

worsening water

quality

• 6 of 10 stations do

not exhibit a trend

Temperature

Status & Trend

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Mapping Designated Management Agencies

(DMAs) and Responsible Persons

• DMA: “a federal, state or local governmental

agency that has legal authority over a sector or

source contributing pollutants, and is identified as

such by the Department of Environmental Quality

in a TMDL.”

• Mapping helps DEQ with source identification,

and

• Links responsible entity to TMDL load allocations

OAR 340-042-0030(2)

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Mapping DMAs: Mid-Coast Example

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Mapping DMAs: Mid-Coast Example

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Questions?

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