San joaquin river stockton deep water ship channel dissolved oxygen tmdl
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San Joaquin River Stockton Deep Water Ship Channel Dissolved Oxygen TMDL PowerPoint PPT Presentation


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San Joaquin River Stockton Deep Water Ship Channel Dissolved Oxygen TMDL. What is a TMDL? San Joaquin River DO TMDL Overview TMDL Control Program & Phase II MS4 Permit Sue McConnell (Senior WRCE) (916) 464-4798 Christine Joab (Environmental Scientist) (916) 464-4655. What is a TMDL?.

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San Joaquin River Stockton Deep Water Ship Channel Dissolved Oxygen TMDL

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San joaquin river stockton deep water ship channel dissolved oxygen tmdl

San Joaquin River Stockton Deep Water Ship Channel Dissolved Oxygen TMDL

What is a TMDL?

San Joaquin River DO TMDL Overview

TMDL Control Program & Phase II MS4 Permit

Sue McConnell (Senior WRCE) (916) 464-4798

Christine Joab (Environmental Scientist) (916) 464-4655

Phase II MS4 SJR DO TMDL 22 Jan 2014


What is a tmdl

What is a TMDL?

Waters not meeting water quality standards (objectives)

Impaired water bodies list

TMDL = Planning and Management Tool

Identify, quantify and control sources

Implement Control Program (actions, time schedule, monitoring)

Regulatory Programs

NPDES Permits (Municipal, Industrial & Storm Water)

Waste Discharge Requirements (WDRs)

401 Water Quality Certifications

Technical and Monitoring Report Requirements

Phase II MS4 SJR DO TMDL 22 Jan 2014


San joaquin river stockton deep water ship channel dissolved oxygen tmdl

Impaired Reach of the San Joaquin River

Disappointment Slough

Turner Cut

Impaired Reach

Port of Stockton

Phase II MS4 SJR DO TMDL 22 Jan 2014


San joaquin river stockton deep water ship channel dissolved oxygen tmdl

Impaired Reach of the DWSC

DO TMDL Source Area

Friant Dam

San Joaquin River

Mendota Pool

TMDL Source Area

Phase II MS4 SJR DO TMDL 22 Jan 2014


Tmdl sources

TMDL Sources

TMDL Studies - 3 Contributing Factors

Channel Geometry

Flow through the Channel

Upstream Oxygen Demanding Substances

City of Stockton WWTP discharges

Algae and nutrients from upstream watershed

Other upstream point sources (includes NPDES & Storm Water)

Phase II MS4 SJR DO TMDL 22 Jan 2014


Tmdl control program actions

TMDL & Control Program Actions

Contributors collectively responsible

Work together to implement TMDL

Actions Implemented within Watershed

Stockton WWTP upgrade

Aeration Facility operation

Watershed studies and new WDRs for Ag

Phase II MS4 – TMDL Implementation

Minimize, control and prevent discharge

Annual Report submittal

Phase II MS4 SJR DO TMDL 22 Jan 2014


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