• If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • You already know Dokkio is an AI-powered assistant to organize & manage your digital files & messages. Very soon, Dokkio will support Outlook as well as One Drive. Check it out today!

View
 

Boulder Elkhorn Documents

This version was saved 11 years, 4 months ago View current version     Page history
Saved by Christina Staten
on November 16, 2012 at 1:46:26 pm
 

Removed metals doc, posted temp section, & reorganized page

Boulder-Elkhorn TMDL Planning Area home

Project Outreach     Photos     Advisory Groups

 

Boulder-Elkhorn TMDL Planning Area Documents 

 

 

Page Contents:


 


Draft TMDL Documents

 

Metals:

The "Boulder-Elkhorn Metals TMDLs and Framework Water Quality Improvement Plan" is available for public comment until 5 p.m. Thursday, December 6, 2012. The document and information on submitting comments can be found on DEQ's web site at: http://deq.mt.gov/pubcom.mcpx. A public meeting to review this document and answer questions will be held from 7 to 9 p.m. Monday, November 26, 2012 at City Hall in Boulder.

 

Nutrients, Sediment, & Temperature:

The nutrient, sediment, and temperature TMDLs are being published in a separate document from the metals TMDLs. Draft portions of this document are being posted in the table below for stakeholder review and comment, as they become available. A deadline for submitting comments has not been established. Stakeholders will be notified via email when all portions of the document are available for review and the stakeholder comment period end date has been determined. A stakeholder meeting will be held once the full draft document is complete.

 

If you would like to send comments, please email them to Christina Staten or mail to:

 

Dept. of Environmental Quality

PPA/WQPB

Attn: Christina Staten

P.O. Box 200901

Helena, MT 59620-0901

 

 

Boulder-Elkhorn Nutrients, Sediment, and Temperature TMDLs Draft Document 

Note: Some appendix and attachment letters may change

Document Section

Section Contents

Date Posted

Sections 1-4

1.0: Introduction

2.0: Boulder River Watershed Description

3.0: Montana Water Quality Standards

4.0: Defining TMDLs & Their Components

 

Section 5: Sediment TMDL Components

Detailed evaluation of sediment water quality standards and calculation of pollutant source loading estimates, TMDLs, and allocations for sediment TMDLs.

 

Section 6: Temperature TMDL Components (0.2 MB)

Detailed evaluation of temperature water quality standards and calculation of pollutant source loading estimates, TMDLs, and allocations for temperature TMDLs.

11/16/12

Section 7: Nutrient TMDL Components (0.9 MB)

Detailed evaluation of nutrient water quality standards and calculation of pollutant source loading estimates, TMDLs, and allocations for nutrient TMDLs.

10/5/12

Sections 8-9

8.0: Restoration Objectives & Implementation Strategy

9.0: Monitoring Strategy

 

Appendix

Appendix Description

Date Posted

Appendix A: Tables & Figures

Contains Table A-1 and all maps and figures for the Boulder River Watershed Description found in Section 2.0 of the document and Appendix B.

 

Appendix B: Boulder River Watershed Description

Describes the physical, ecological, and cultural characteristics of the Boulder River watershed. The characterization establishes a context for impaired waters in the watershed, in support of TMDL development.

 

Appendix C: Regulatory Framework & Reference Condition Approach

Contains more detailed information about legal requirements for developing TMDLs; Montana’s sediment, nutrient, and temperature water quality standards; and the approach taken to evaluate reference conditions.

 

Appendix D: Sediment Reference Conditions & Target Value Rationale (0.1 MB)

Provides a detailed description of the approach taken to determine reference conditions in the Boulder-Elkhorn TMDL planning area, and the target parameters and target values used for sediment-impaired streams in this planning area.

7/10/12

Appendix E:

This appendix will contain information related to the sediment TMDLs

 

Appendix F: Nutrient Water Quality Data

Contains the water quality data used in development of nutrient TMDLs in the Boulder-Elkhorn TMDL Planning Area

 

 

 

 

Attachment

Attachment Description

Date Posted

Attachment A

This attachment will contain information related to the sediment TMDLs

 

Attachment B

This attachment will contain information related to the temperature TMDLs

 

 

 


 

Nutrients and Metals Water Quality Sampling Data

 

DEQ sampled for a suite of nutrients and metals parameters during high and low flows in 2009 and 2010 throughout the Boulder River watershed. Seventy-three sites were sampled in 2009. A portion of those sites were sampled in 2010, along with 14 new sites. Five sites were sampled in 2011 in order to collect additional data on three streams. The sampling and analysis plans posted below provide tables and maps of sampling locations and the parameters that were sampled at each site. Data from all three years is provided below in both PDF and MS Excel (spreadsheet) formats.

 

Nutrients & Metals Sampling Plans

2009 Sampling and Analysis Plan (0.6 MB)

Appendices A – C (1.91 MB): Chlorophyll-a Photo Packet, Analyte Checklist, and QA/QC Checklist

2010 Sampling and Analysis Plan (0.09 MB)

Nutrients & Metals Sample Results

Metals (water column) Sample Results

Metals (sediment) Sample Results

Nutrients & Chlorophyll-a Sample Results

 

Spreadsheet of all Metals & Nutrient Sample Results

If you would like a comprehensive spreadsheet containing all data attributes, please contact Christina Staten.

Montana’s Water Quality Standards

“Circular DEQ-7, Montana Numeric Water Quality Standards” contains numeric water quality standards for metals parameters and can be found on DEQ’s Water Quality Standards web page.

DEQ is currently developing numeric water quality criteria for nutrients. See DEQ’s Numeric Nutrient Criteria webpage for additional information and to view the draft Circular DEQ-12 containing proposed numeric values. The proposed values for wadeable streams in the Middle Rockies Level III ecoregion will be applied for the Boulder-Elkhorn nutrient TMDLs.

 

 


 

Sediment & Temperature Source Assessment Reports

 

REPORT

DESCRIPTION

Sediment and Habitat Conditions and Streambank Erosion Assessments (2.5 MB)

Instream fine sediment data was collected and streambank erosion assessments were performed during the summer of 2010 on 13 streams. This document summarizes the methods used and the data that was collected. A map of sampled sites is included.

Assessment of Sediment Contribution from Hillslope Erosion (Upland Modeling Report) (1.16 MB)

A simple model was used to provide an assessment of existing sediment loading from upland sources and an assessment of potential sediment loading through the application of best management practices.

Boulder River Temperature Assessment (1.32 MB)

Stream temperature, flow, and riparian shade data was collected on the Boulder River during the summer of 2010. This information was used in a QUAL2K model to assess the influence of riparian shading and streamflow on stream temperatures in the Boulder River. This report contains a map of sample locations, summarizes the collected data, and discusses the results of the assessment.


 

Click on the Adobe icon if you need to download the free Adobe Acrobat software to view these files.

Please contact Christina Staten, if you have problems downloading these documents. 

Click here to download Adobe Acrobat Reader

 

 

Page Released: August 27, 2009

Last Updated: November 16, 2012