Phase II RCRA Facility Investigation Site Characterization Work Plan

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This document was prepared for Montana Environmental Trust Group, LLC by Hydrometrics, Inc. in May 2010. It totals 118 pages and is a 5MB PDF file.

Supporting files:

Quality Assurance Project Plan for Environmental Data Collection Activities

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This document was prepared for Montana Environmental Trust Group, LLC by Hydrometrics, Inc. in May 2010. It totals 86 pages and is a < 1MB PDF file.

Data Management Plan for Environmental Data Collection Activities
Phase II RCRA Facility Investigation

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This document was prepared for Montana Environmental Trust Group, LLC by Hydrometrics, Inc. in September 2010. It totals 19 pages and is a < 1MB PDF file.

Comprehensive Remedial Investigation/Feasibility Study

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This document was prepared for ASARCO Incorporated by Hydrometrics, Inc. in March 1999. It totals 467 pages and is a 20MB PDF file.

Current Conditions/Release Assessment: East Helena Facility

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This document was prepared for ASARCO Incorporated by Hydrometrics, Inc. in September 1998 and revised January 1999. It is the complete report totaling 2124 pages and is a 320MB PDF file.

Rather than downloading the entire report, you can view a summary by download any of the first four parts, each constituting sequential hundred page excerpts from the report:

If you’d like to download the entire 320MB file, you can access it here: