Protecting Public Health and the Environment.

Lower Boise River Watershed Advisory Group (WAG)

Watershed advisory groups (WAGs) are groups of interested citizens that provide local public input and guidance to DEQ during the development of water quality improvement plans or "Total Maximum Daily Loads" (TMDLs) for water bodies that fail to meet water quality standards. TMDLs are designed to reduce the levels of pollutants, such as bacteria and sediment, in impaired water bodies.

The Lower Boise River WAG was formed to develop and implement TMDLs to improve water quality in the Lower Boise River. DEQ will consult with WAG participants on a regular basis throughout the TMDL development and/or five-year review process.

Upcoming Meetings

Lower Boise Watershed Council
Thursday, April 13, 2017, 1 p.m.
Caldwell Airport
4814 E. Linden St.
Agenda

Review Documents

Water Quality Trading

Total Phosphorus and Sediment and Bacteria Addendums

Comments and Responses on Draft Total Phosphorus TMDL Addendum

Previous Draft Documents

Phosphorus

WAG/TAC Review Documents

Technical Reports and Scientific Literature

Images and Waypoints

Sediment/Bacteria

Sediment Information

Scientific Research

Previous Meetings

Watershed Council and TAC Meetings

Date
Materials
March 9, 2017
Agenda
January 12, 2017
Agenda
November 10, 2016
Agenda
Lower Boise River Monitoring Update: Water Year 2016 (USGS presentation)
September 8, 2016
Agenda
July 14, 2016
Agenda
June 9, 2016
Agenda
Category 4b Summary for the Nutrient Impaired Tributaries in the Lower Boise River Watershed
Indian Creek Temperature TMDL Strategy Paper
May 12, 2016
Agenda
April 14, 2016
Agenda
March 10, 2016
Agenda
February 11, 2016
Agenda
February 10, 2016
Agenda
January 14, 2016
Agenda
November 12, 2015
Agenda
October 8, 2015
Agenda
September 10, 2015
Agenda
July 9, 2015
Agenda
June 11, 2015
Minutes (draft)
May 14, 2015
Agenda
April 9, 2015
Lower Boise River TP TMDL - LBWC Update
March 19, 2015
Agenda
Additonal Scenarios for the Lower Boise River AQUATOX Model of the Total Phophorus/Periphyton Relationship
Lower Boise River Total Phosphorus TMDL Update
Authorized Nonstormwater Table and Definitions
March 12, 2015
Agenda
February 12, 2015
Agenda
Lower Boise River Total Phosphorus TMDL - Update
January 21, 2015 - TAC
Agenda
Draft Lower Boise River Subbasin Assessment and Total Maximum Daily Load (DEQ presentation)
January 8, 2015
Agenda
Draft Lower Boise Tributaries: 2014 Addendum of the Sediment and E. Coli TMDLs
Draft Lower Boise River Subbasin Assessment and Total Maximum Daily Load: 2015 Total Phosphorus TMDL Addendum for the Lower Boise River, Mason Creek, and Sand Hollow Creek
December 11, 2014
Agenda
Agricultural Reuse: Wastewater and Drain Water Preliminary Outline
Lower Boise River Total Phosphorus TMDL Update
December 4, 2014 - TAC
Agenda
November 20, 2014 - TAC
Agenda
October 9, 2014
Agenda
TP TMDL Update
September 24, 2014 - TAC
Agenda
Draft Allocation Tables
September 11, 2014
Agenda
Minutes
2012 and 2013 Results: 10 Contracts Funded Each Fiscal Year
Draft Work Plan for the Assessment of Water Quality and Biological Communities in the Lower Boise River and Selected Tributaries
TP TMDL Update (via email)
Lower Boise River and Tributaries Applied BMPs and Inventory (presentation by Kari Pappani, Idaho State Soil and Water Conservation Commission)
Agricultural BMP's in Canyon County (presentation by Robin Hadeler, Canyon Soil Conservation District)
July 30, 2014 - TAC
Agenda
Modeling Development for the LBR Total Phosphorus TMDL (presentation by DEQ)
July 10, 2014
Agenda
Minutes
TP TMDL Update
Lower Boise River Monitoring Options FY15
Signature Page
June 12, 2014
Agenda
TP TMDL Update
May 29, 2014 - TAC
Agenda
Minutes
Periphyton Table
Perspectives on Selecting Aquatox Model Conditions (presentation by Michael Kasch)
May 8, 2014
Agenda
Periphyton Table
TP TMDL Update
Municipal Wastewater At A Glance (presentation)
April 24, 2014 - TAC
Draft Agenda
Model-Techno-Policy Workgroup Update (presentation by DEQ)
April 10, 2014
Agenda
Map
TP TMDL Update
Draft Duration Curves for Parma
Draft May-September Load Allocation Tables
April 3, 2014 - TAC
Agenda
Draft Duration Curves for Parma
Draft May-September Load Allocation Tables
Draft May-September Load Allocation Analysis (presentation by DEQ)
March 13, 2014
Agenda
Lower Boise River Total Phosphorus AQUATOX Vote Memo
DEQ LBR TP TMDL - LBWC Update
EPA Calibration Comments
Jonathan Clough and Dick Park Model Comments
AQUATOX Model Calibration for the LBR TP TMDL (presentation by DEQ)
AQUATOX (presentation by City of Boise)
February 26, 2014 - TAC
AQUATOX Model Calibration for the LBR TP TMDL (presentation by DEQ)
February 13, 2014
Agenda
USGS Monitoring Update (presentation by USGS)
TP TMDL - LBWC Update
January 23, 2014 - TAC
Draft Agenda
AQUATOX Model Calibration for the LBR TP TMDL (presentation by Troy Smith and Darcy Sharp, DEQ)
January 9, 2014
Agenda
TP TMDL - LBWC Update
November 14, 2013
Agenda
October 24, 2013 - TAC
Agenda (draft)
LBR TP TMDL AQUATOX Modeling Discussion (presentation by Troy Smith, DEQ)
October 10, 2013
Agenda
September 26, 2013
Agenda
TP TMDL Update and Chl a Target Refinement (presentation by Troy Smith, DEQ)
Revised Target Recommendations for AQUATOX Modeling and TMDL
September 12, 2013
Agenda
Draft Mass Balance Scenarios
Revised Target Recommendations for AQUATOX Modeling and TMDL
August 22, 2013 - TAC
Agenda (draft)
Target Recommendations for AQUATOX Modeling
Municipal WWTF Considerations (presentation by Kate Harris, City of Boise)
LA and WLA Discussion Materials
July 25, 2013 - TAC
Agenda (draft)
Allocation Development Discussion
Total Phosphorus Mass Balance Model Sensitivity: Lower Boise River - Week of August 20, 2012
Summary of Simulation Inputs to the Predictive Total Phosphorus Mass Balance Model of the Boise River
Municipal/Industrial Wastewater Treatment Facilities Work Group: Draft Framework for Allocations for Mainstem Lower Boise River Phosphorus TMDL
April 25, 2013 - TAC
Agenda (draft)
Phosphorus and Effluent Trading Discussion (Presentation by Scott Koberg, Ada SWCD)
Best Management Practice Effectiveness on Phosphorus Removal from Field Surface Irrigation Return Flows
Proposed Best Management Practices to be Applied in the Lower Boise River Effluent Trading Demonstration Project (Carter, 2002)
April 11, 2013
Agenda (draft)
Lower Boise River TP TMDL Adjusted Timeline - April 9, 2013 (draft)
Mass Balance Model Data
Groundwater Gains and Losses - August
July 11, 2013
Agenda
Recommendations of the Bylaws Subcommittee to the Lower Boise Watershed Council Board of Directors
LA and WLA Discussion Materials for July 11, 2013 LBWC Meeting
June 27, 2013 - TAC
Agenda
June 13, 2013
Phosphorus Allocation for Nampa Plant (presentation by Sorrento Lactalis, Inc.)
Notes on Boise Total Phosphorus TMDL (presentation by Jack Harrison)
DEQ Use of the USGS Mass Balance Model Point Paper
Agenda
May 23, 2013 - TAC
Modeling Status Update (presentation by HDR Engineering, Inc.)
Summary of AQUATOX Modeling for the Lower Boise River
Agenda
May 9, 2013
Agenda
May 2, 2013 - Load and Wasteload Allocations
Summary of Allocation Options and Examples in Idaho (presentation by Tom Dupuis)
April 4, 2013 - TAC
Agenda (draft)
Snake River/Hells Canyon TMDL
Bear River/Malad River TMDL
Portneuf River TMDL
Clark Fork River Voluntary Nutrient Reduction Program
WI Guidance for TP Point Source Discharges
Oregon's 2010 Integrated Report 303d listing for Phytoplankton in the Snake River/Hell's Canyon Complex
Lower Boise River TP TMDL Adjusted Timeline - April 3, 2013 (draft)
DEQ TMDL Template Example
March 14, 2013
Agenda
Preliminary Fivemile and Tenmile Creek 2012 Water Quality Sampling Results (Jack Harrison presentation)
Fifteenmile Creek Data
Proposal to Modify the Lower Boise River Total Phosphorus TMDL, Benthic Chlorophyll-a Target Period Based on Additional Analyse
February 28, 2013 - TAC
Agenda (draft)
Benthic Chlorophyll-a Target – Applicable Timeframe (DEQ presentation)
Total Phosphorus Mass Balance Model (USGS presentation)
Lower Boise River Total Phosphorus Chlorophyll-a Target Addendum
February 14, 2013 - WAG
Agenda
Benthic Chlorophyll-a Target-Applicable Timeframe (DEQ presentation)
Proposal to Modify the Benthic Cholorphyll-a Target Period for the Lower Boise River Total Phosphorus TMDL: July 1 - November 30 with additional modeling
January 24, 2013 - WAG and TAC
Agenda (draft)
Benthic Chlorophyll-a Target-Applicable Timeframe (DEQ presentation)
Total Phosphorum Mass Balance Model - Lower Boise River (USGS presentation)
2012 Integrated Report: Assessment Unit-Cause Combinations Delisted
Water Quality Data for Tributaries to the Lower Boise River for Consideration in the Draft 2012 Integrated Report
Category 1: Waters Wholly within Wilderness or Roadless Areas Where Standards are Presumed to be Attained
Category 2: Waters Attaining Some Standards
Category 3: Waters with Insufficient Data to Determine if Any Standards are Attained
Category 4a: EPA Approved TMDLs
Category 4b: Impaired Waters Expected to Meet Standards
Category 4c: Waters Impaired by Pollution, Not a Pollutant
Category 5: Impaired Waters Needing a TMDL
New Listings to Category 5 for the 2012 Cycle
January 10, 2013
Memorandum: Benthic Chlorophyll-a Target Recommendation for the Lower Boise River Total Phosphorus TMDL
Agenda (draft)
Proposed Sediment Targets in the Lower Boise River Tributaries (DEQ, January 2013)
Plans for 2013 Integrated Report (presentation)
January 3, 2013 - TAC
Total Phosphorus TMDL Target Development (presentation)
Agenda (draft)
Target Selection Point Paper
November 29, 2012 - TAC
Total Phosphorus TMDL Target Development (presentation)
Agenda (draft)
Sediment Targets in the Boise River Tributaries (presentation)
1999 Lower Boise River Sediment Target Summary (presentation)
October 11, 2012
Sediment and Nutrient Reductions in Constructed Water Quality Ponds (presentation)
September 27, 2012 - TAC
Perspectives on Selecting Water Quality Targets and Allocations (presentation)
August 23, 2012 - TMDL TAC
Lower Boise River TMDL Target and Metric Identification & Assessment Process (draft)
Total Phosphorus TMDL Overview of Strategy (presentation)
July 26, 2012 - TMDL TAC
Lower Boise Watershed Phosphorus TMDL Addendum Strategy Paper (draft)
Lower Boise Watershed Tributary TMDL Addendum Strategy Paper (draft)
July 19, 2012 - TAC
Agenda
June 14, 2012 - TAC
Minutes
April 12, 2012
Minutes (draft)
Attendance List
Proxy Form
April 6, 2012 - TAC
Lower Boise River Phosphorus TMDL (Presentation by Lauri Monnot, DEQ)
Boise River Phosphorus TMDL (Presentation by Lance Holloway, DEQ)
What Does USGS Research Tell Us About Phosphorus in the Boise River? (Presentation by Alexandra Etheridge, USGS)
March 16, 2012
Elements of a TMDL (Handout)
Pollutant Trading 101 (Handout)

Water Quality Trading TAC

Date
Materials
June 16, 2016
Agenda
Water Quality Trading Framework Update (Willamette Partnership presentation)
April 27, 2016
Action Items
Meeting #3: Foundations of Revising the Lower Boise River Water Quality Trading Framework (presentation)
Meeting #3: Foundations of Revising the Lower Boise River Water Quality Trading Framework
Lower Boise River Technical Analysis (The Freshwater Trust)
March 28, 2016
Agenda
Action Items
Meeting #2: Foundations of Revising the Lower Boise River Water Quality Trading Framework (presentation)
Meeting #2: Foundations of Revising the Lower Boise River Water Quality Trading Framework
Concept Draft
March 1, 2016
Agenda
Water Quality Trading Notes
Action Items
Meeting #1: Foundations of Revising the Lower Boise River Water Quality Trading Framework
Meeting #1: Foundations of Revising the Lower Boise River Water Quality Trading Framework (presentation)

319 TAC Meetings

Date
Materials
April 4, 2017
Agenda
March 7, 2017
Agenda
February 7, 2017
Agenda
October 4, 2016
Agenda
September 1, 2016
Agenda
Minutes
July 7, 2016
Agenda
June 2, 2016
Agenda
May 5, 2016
Agenda
April 7, 2016
Agenda
March 3, 2016
Agenda
January 14, 2016
Agenda
October 8, 2015
Agenda
September 10, 2015
Agenda
June 11, 2015
Agenda
May 14, 2015
Agenda
Minutes
April 9, 2015
Agenda
Minutes
March 12, 2015
Agenda
January 8, 2015
Agenda
October 9, 2014
Minutes
July 10, 2014
Agenda
June 12, 2014
Agenda
May 8, 2014
Agenda
Minutes
April 10, 2014
Agenda
May 9, 2013
Agenda

Modeling Work Session and Technical Policy Meetings

Date
Materials
July 23, 2014
Summary
Estimated Municipal Wastewater Treatment Level Performance
July 9, 2014
Summary
Characterizing Point Source Phosphorus for the Lower Boise River Total Maximum Daily Load and Aquatox Water Quality Modeling
June 11, 2014
Summary
AQUATOX Model Scenarios Memo
May 28, 2014
Summary
Perspectives on Selecting Aquatox Model Conditions (presentation by Michael Kasch)
May 14, 2014
Summary
Periphyton Table
April 30, 2014
Summary
AQUATOX Model 13-Segment Diagram
Periphyton Table
April 15, 2014
Summary
February 18, 2014
Summary
January 21, 2014
Summary
December 19, 2013
Summary
Lower Boise River AQUATOX Modeling (presentation by DEQ)
December 3, 2013
Summary
Lower Boise River AQUATOX Model Updates (presentation by DEQ)
November 26, 2013
Summary
Lower Boise River AQUATOX Model Updates (presentation by DEQ)
November 5, 2013
Summary
Model Uncertainty: Reporting Error of Surface Water Models (presentation by DEQ)
October 22, 2013
Summary
September 24, 2013
Summary
Lower Boise River AQUATOX Model Primer
September 10, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
Lower Boise River AQUATOX Model Segments 2-8
September 3, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
August 27, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
LBR TP TMDL Modeling Decision Log
Periphyton and Substrate Modeling
August 13, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
LBR TP TMDL Modeling Decision Log
August 6, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
Periphyton Visual Assessment (Presentation by DEQ)
July 23, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
Modeling Decision Log
Biological Assessment of the Lower Boise River, October 1995 Through January 1998
July 16, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
Fifteenmile Creek Flow Draft Memo
July 9, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
AQUATOX Modeling of Attached Algae
July 2, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
Water Quality Monitoring Report Lower Boise River and Snake River Tributaries April 24 through October 9, 2008
The Freshwater Trust: Thermal Uplift Estimates
June 25, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
Modeling Decision Log
June 18, 2013
Summary
Questions/Action Items for AQUATOX Model Calibration
June 11, 2013
Summary
Steps for Modeling Phytoplankton Chl a in Boise River?
May 28, 2013
Notes on Modeling Periphyton
Addendum to "Use of Periphytic Chlorophyll a in Application of AQUATOX in the Lower Boise River TMDL Analysis"
Calibration and Model Acceptance: Proposed Goals (presentation by DEQ)
1-Step or 2-Step Normalization and Deconstruction of Periphyton Data (presentation by Jack Harrison)
May 14, 2013
Summary
Potential NPDES Permits and WQ Data to be Included in Model Scenarios for WLAs
Reach Habitat Info Mockup
Use of Periphytic Chlorophyll a in Application of AQUATOX in the Lower Boise River TMDL Analysis
April 30, 2013
Summary
Lower Boise TMDL Modeling Decision Log
General Periphyton Data Questions (presentation)
Lower Boise NPDES Permits
Lower Boise River Periphyton Controls
Pebble and Shade Normalization Example
Periphyton Biomass Per Unit Area
April 23, 2013
Summary
Lower Boise TMDL Modeling Decision Log
Lower Boise River Periphyton Community Composition Analysis (March 2007)
Periphyton Community Analysis Summary: Boise River Study (March 2007)
Phytoplankton Community Analysis: Boise River at Parma (March 2007)
A Study of the Diatom Flora of Boise River, Idaho (Spring 2007)
Modeling Algae with AQUATOX (Richard Park)
April 16, 2013
Summary
Aquatox Model Segmentation Diagram
Lower Boise Aquatox Model Segmentation
Preliminary Comments on Segmentation (Jack Harrison, HyQual)
Lower Boise TMDL Modeling Decision Log
March 20, 2013 WERF Webinar: Modeling Approaches to Developing Site Specific Nutrient Goals, Criteria, and Management
April 9, 2013
Summary
Workgroup Documents
April 2, 2013
Summary
Agenda (draft)
EPA AQUATOX Technical Note 1: A Calibrated Parameter Set for Simulation of Algae in Shallow Rivers
Initial Four-Segment AQUATOX Run on the Lower Boise River
EPA AQUATOX: Modeling Environmental Fate and Ecological Effects in Aquatic Ecosystems User's Manual
March 21, 2013
Agenda (draft)
Scenarios
February 21, 2013
Agenda (draft)
Potential AQUATOX Applications for Lower Boise TP TMDL Modeling (presentation)
Modeling LBR Periphyton (attached algae) ... Some Background (presentation)
QUAL2Kw (presentation)
January 17, 2013
Fresh Science for CWA Section 304(a)(1) Responsibility
Total Phosphorus Mass Balance Model - Lower Boise River (USGS presentation)
Agenda (draft)
Mass Balance Model Data
Map: Synoptic Sites
November 28, 2012
Boise River: Total Phosphorus Mass Balance Model (presentation)
Agenda (draft)
Summary of Previous Lower Boise River Water Quality Modeling (presentation)
U.S. EPA NPDES Permit Modification for the West Boise Wastewater Treatment Facility (fact sheet)

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Staff Contacts

Watershed Manager
Lance Holloway
DEQ Boise Regional Office
1445 N. Orchard St.
Boise, ID 83706
(208) 373-0550
lance.holloway@deq.idaho.gov

DEQ Resources

Landscape Plumbing: Mapping the Water of the Treasure Valley - Google Earth map that shows the source and destination of water for every field in the lower Boise River valley

Related Pages

Total Maximum Daily Loads (TMDLs): Water Quality Improvement Plans

Watershed Advisory Groups