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Water Quality Division

Nicole Deinarowicz

(208) 373-0591

Michael McIntyre

(208) 373-0570

 

Surface Water:

Final 2008 Integrated Report

> Link to Report

> Link to EPA Partial Approval/Partial Disapproval

> Link to Response to Comments

Use DEQ's map-based integrated report Web site to see 2008 Integrated Report results for your favorite stream.

 

Every two years, DEQ is required by the federal Clean Water Act to conduct a comprehensive analysis of Idaho's water bodies to determine whether they meet state water quality standards and support beneficial uses or if additional pollution controls are needed. This analysis is summarized in an "Integrated Water Quality Monitoring and Assessment Report" (Integrated Report), which is submitted to the U.S. Environmental Protection Agency (EPA) for approval. The report serves as a guide for developing and implementing water quality improvement plans (total maximum daily loads, or TMDLs) to protect water quality and achieve federal and state water quality standards. 

An Integrated Report must be approved by EPA before it can be used by a state to guide its management decisions. Idaho's most recent approved version is its 2008 Integrated Report.  This document will continue to guide DEQ's water quality management decisions until a 2010 Integrated Report is completed by DEQ and approved by EPA.

Read more on Integrated Report purpose, organization, and background.

 
 Background

The public and EPA commented on the draft 2008 Integrated Report in February 2008 (view DEQ’s responses). DEQ’s Integrated Report was completed and submitted to EPA for review and approval in July 2008. Based on EPA’s review of the Integrated Report, it was determined that there were data differences between The Assessment Total Maximum Daily Load Tracking and Implementation System (ATTAINS) and DEQ's Assessment Database (ADB). DEQ and EPA reconciled those differences between July 2008 and May 2009. DEQ received a Partial Approval/ Partial Disapproval of the 2008 Integrated Report from EPA on February 4, 2009.

 

EPA disapproved delisting Hem Creek for temperature and the Lower Boise for nutrients because DEQ did not demonstrate good cause to delist. EPA subsequently took public comment on this reversal that ended May 15, 2009. EPA has not yet responded to those comments.

Water bodies listed in Section 5 of the 2008 Integrated Report require TMDLs to protect their beneficial uses and meet water quality standards.

The report shows that 27% of Idaho's streams meet state water quality standards, 36% do not meet water quality standards, and 37% have not been assessed.
 

 Final 2008 Integrated Report

The report and the information it contains are available in several ways:
 
Download the document here in PDF format:
Entire Report 5.3 mb, 608 pages

For quicker downloading, we have also divided the report into the following sections:
Introduction: Principles and Policies for the Report 2.0 mb, 96 pages
Section 1: Wilderness Waters 86 kb, 10 pages
Section 2: Full Support 266 kb, 33 pages
Section 3: Unassessed Waters 378 kb, 50 pages
Section 4a: EPA Approved TMDLs 447 kb, 123 pages
(The report does not contain a Section 4b.)  
Section 4c: Waters Impaired by Non-Pollutants 135 kb, 29 pages
Section 5: Impaired Waters 433 kb, 93 pages
Mercury-Impaired Water Bodies 759 kb, 1 page
Delisted Assessment Units 911 kb, 173 pages
 
Request the document on a CD:

Barbara Mallard

Water Quality Division

DEQ State Office

1410 N. Hilton

Boise, ID 83706

ph: (208) 373-0502

fx: (208) 373-0576

barbara.mallard@deq.idaho.gov
 
View a map showing overall results:
View a map of Idaho (32" x 46") showing Integrated Report results (not included in the report, above).
 
Use an interactive map to search for water body-specific results:

Use DEQ's map-based Integrated Report Web site to find the same information that is available in the Integrated Report, but in a searchable, map-based format.

(This is the same Web site linked to from the yellow box at the top of this page.)

 

 EPA Partial Approval/Partial Disapproval

Entire Document 8.8 mb, 106 pages

For quicker downloading, we have also divided the document into the following sections:
Cover Letter 241 kb, 2 pages
Enclosure 1: EPA review of Idaho's 2008 Integrated Report 83 kb, 7 pages
Enclosure 2: EPA review of Idaho's Delisting Rationale for the Lower Boise River 292 kb, 22 pages
Photo Log of the Lower Boise River, Ada and Canyon Counties, Idaho - July 9, 2008 3.9 mb, 22 pages
Photo Log of the Lower Boise River, Ada and Canyon Counties, Idaho - August 13, 2008 2.9 mb, 15 pages
EPA Memo Subject: Macroinvetebrate Data Related to the Delisting of Nutrients on the Lower Boise River 25 kb, 2 pages
Enclosure 3: EPA Review of Idaho's Delisting Rationale for Hem Creek 499 kb, 30 pages
 

2008 Integrated Report Response to Comments
DEQ conducted a 30-day public comment period on the principles and policies document and water body specific actions taken in Idaho's 2008 Integrated Report. Twenty-five comment letters were received, in addition to comments that were provided online by DEQ's web-based mapping project.
 
Response to Comments Matrix 542 kb, 112 pages
   
 



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