New World Mining District Response & Restoration Project
Project Documents

The Document Library has been collected throughout the history of the New World Mine.  You can search for documents by subject, title, author, date and type of document.

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Glengarry Mill-Site Adit Closure Construction Report – 2008
Adobe PDF (2.09MB)

This Construction Report summarizes work completed to close and reclaim the Glengarry Mill-site Adit.

Glengarry Mine Closure Construction Report – 2003-2005
Adobe PDF (6.13MB)

This Construction Report summarizes construction work completed to close the Glengarry Mine underground workings using a combination of methods including fracture grouting, cement plugs, cement backfill, rock backfill, and portal plugging. The report includes contract information, a description of construction activities, and construction costs.

McLaren Pit Response Action – 2002-2004
Adobe PDF (3.1MB)

This Construction Report summarizes construction work completed in 2002 and 2003 to consolidate and cover mine waste rock in the former McLaren Pit. The report includes contract information, a description of construction activities, site revegetation, and construction costs.

Selective Source Response Action – 2001-2002
Adobe PDF (2.02MB)

This Construction Report summarizes construction work completed in 2001 and 2002 to remove mine waste rock and tailings from seven waste sites and to build a mine waste repository to contain the removed wastes. The report includes contract information, a description of construction activities, site revegetation, and construction costs.

Project Summary 2008
Adobe PDF (6.17MB)

This Project Summary updates the previous summary released in June 2007 by summarizing on-going project activities. The document details recent cleanup activities and presents a timetable for project completion.

Project Summary 2007
Adobe PDF (8,031k)

This Project Summary updates the previous summary released in June 2006 by summarizing on-going project activities. The document details recent cleanup activities and presents a timetable for project completion.

Project Summary 2006
Adobe PDF (1,741k)

This Project Summary updates the previous summary released in June 2005 by summarizing on-going project activities. The document details recent cleanup activities and presents a timetable for project completion.

Project Summary 2005
Adobe PDF (1,673k)

This Project Summary updates the previous summary released in June 2004 by summarizing on-going project activities. The document details recent cleanup activities and presents a timetable for project completion.

Project Summary 2004
Adobe PDF (1,666k)

This Project Summary document, which was first distributed in the fall of 2000 and updated annually, summarizes on-going project activities. This Project Summary details recent cleanup activities and presents a timetable for project completion.

Project Summary 2003
Adobe PDF (782k)

This Project Summary document, which was first distributed in the fall of 2000 and updated again in the fall of 2001 and the summer of 2002, is being updated annually to keep those interested abreast of on-going project activities. Previous Project Summary documents summarized the project’s history, mining-related problems, legal considerations, and cleanup process. This Project Summary for 2003 focuses on cleanup activities, with a brief summary of the cleanup approach for the project.

Project Summary 2002
Adobe PDF (287k)

Since a considerable amount of work has been done since the project was initiated by the USDA Forest Service in 1999, this Project Summary document, which was first distributed in the fall of 2000 and updated again in the fall of 2001, is being updated annually to keep those interested abreast of on-going project activities. Previous Project Summary documents summarized the project's history, mining-related problems, legal considerations, and cleanup process. This Project Summary for 2002 focuses more specifically on the cleanup actions rather than the history and cleanup process.

Project Summary 2001
Adobe PDF (323k)

Because a considerable amount of work has been done since the inception of this project under the USDA Forest Service's lead, this document was prepared to briefly summarize the most pertinent aspects of the project, especially for those people that may not have the time to wade through two years of project documents. The summary contains a description of the project's history, the cleanup process, legal issues, and the Forest Service's approach to completing the project. It covers the period from January 1999 through July 2001.

2009/2010 Work Plan (Final)
Adobe PDF (2.4MB)

The Final 2009/2010 Work Plan details the work proposed for 2009 and 2010 including monitoring surface water and groundwater quality, ongoing removal action construction work, and other activities that will be conducted for the project.

2008/2009 Work Plan (Final)
Adobe PDF (5.85MB)

The Final 2008/2009 Work Plan details the work proposed for 2008 and 2009 including monitoring surface water and groundwater quality, ongoing removal action construction work, and other activities that will be conducted for the project.

2007/2008 Work Plan (Final)
Adobe PDF (6.15MB)

The Final 2007/2008 Work Plan details the work proposed for 2007 and 2008 including monitoring surface water and groundwater quality, ongoing removal action construction work, and other activities that will be conducted for the project.

2006/2007 Work Plan (Final)
Adobe PDF (3.62MB)

The Final 2006/2007 Work Plan details the work proposed for 2006 and 2007 including monitoring surface water and groundwater quality, ongoing removal action construction work, and other activities that will be conducted for the project.

2005/2006 Work Plan (Final)
Adobe PDF (3.11MB)

The Final 2005/2006 Work Plan details the work proposed for 2005 and 2006 including monitoring surface water and groundwater quality; construction work at the Glengarry Adit, the Como Basin, and the Selective Source Repository; closure of boreholes in the Gold Dust Adit; and, the Second 3-Year Review Process for the Temporary Standards.

2004/2005 Work Plan (Final)
Adobe PDF (2.24MB)

The Final 2004/2005 Work Plan details the work proposed for 2004 and 2005 including monitoring surface water and groundwater quality; construction work at the Glengarry Adit; potential closure of boreholes in the Gold Dust Adit; plans for the grizzly bear, Stillwater wetland, and ferricrete studies; and, a description of the engineering evaluation/cost analysis proposed for discharging adits in the District.

2003/2004 Work Plan (Final)
Adobe PDF (1.82MB)

The Final 2003/2004 Work Plan details the work that will be done in 2003 and 2004 to monitor existing conditions at the site, collect data to implement the yearly removal action, construct the preferred alternatives resulting from the McLaren Pit Response Action EE/CA and the Glengarry Adit Response Action, and plan for future removal actions slated for the Como Basin, Fisher Creek, and Miller Creek. Due to its large file size, Figure 5 of this document is not available online. If you would like a copy please send an email.

2002/2003 Work Plan (Final)
Adobe PDF (247k)

The 2002/2003 Work Plan details the work that will be done in 2002 and 2003 to monitor existing conditions at the site, collect data to implement the yearly removal action, construct the preferred alternative resulting from the McLaren Pit Response Action EE/CA, and plan for the removal action for the Como Basin/Glengarry Adit/Fisher Creek that will be done in 2003. Due to its large file size, Figure 5 of this document is not available online. If you would like a copy please send an email.

2001 Work Plan (Final)
Adobe PDF (162k)

The 2001 Work Plan details the work that will be done in 2001 to monitor existing conditions at the site, collect data to implement the yearly removal action, construct the preferred alternative resulting from the 2001 EE/CA, and plan for the removal action that will be done in the following year.

2000 Work Plan (Final)
Adobe PDF (113k)

The 2000 Work Plan details the work that will be done in 2000 to monitor existing conditions at the site, collect data to implement the yearly removal action, construct the preferred alternative resulting from the 2000 EE/CA, and plan for the removal action that will be done in the following year.

Overall Work Plan
Adobe PDF (181k)

The Overall Project Work Plan serves to outline background information on the project and to present the scope of work and process that will be used to guide response and restoration activities. This plan is the master planning document for the project.

Long-Term Operations and Maintenance Plan (Final)
Adobe PDF (2.62MB)

The Long-Term Operations and Maintenance Plan provides descriptions of annual monitoring tasks that will be completed to determine whether maintenance of reclaimed sites and the repository is needed, how maintenance work will be done, and estimated costs of site-wide monitoring and maintenance. This operations and maintenance plan for the project begins after reclamation is complete and covers activities that will occur for the following 20 years. It is estimated the operations and maintenance period will begin in 2010 and end in 2030.

Long-Term Repository Monitoring Plan
Adobe PDF (1,764k)

This Long-Term Repository Monitoring Plan presents monitoring activities that will be conducted annually at the New World Waste Repository over a 10-year period following completion of construction of the facility.  Monitoring includes surface water and groundwater quality sampling, monitoring the repository sump, and revegetation monitoring.  Monitoring will be done in conjunction with response and restoration activities for the New World Mining District Response and Restoration Project.

Long-Term Surface Water Quality Monitoring Plan
Adobe PDF (48k)

The Long-Term Surface Water Quality Monitoring Plan describes surface water monitoring activities in the project area that will be carried out over the eight-year project period. Surface water quality monitoring will be done to carry out the monitoring requirements associated with the proposed rule to adopt temporary water quality standards for segments of Daisy Creek, the Stillwater River, and Fisher Creek. Details included in the monitoring plan are sampling station locations, frequency of sampling, sampling methods, analytical parameters, analytical methods, and quality control procedures.

Long-Term Revegetation Monitoring Plan
Adobe PDF (56k)

The revegetation monitoring plan outlines the procedures, methods, and schedule for monitoring revegetated areas. The areas monitored will include the areas recently reclaimed by Crown Butte Mines and new areas that will be reclaimed each year as a result of the response actions. Revegetation monitoring data will be used to aid in the design and implementation of revegetation efforts as well as to determine if maintenance is needed on previously revegetated areas. Field measurements will be taken each year at selected sites to quantify cover, species types, frequency, and diversity. Monitoring will be conducted annually, primarily during the month of August.

Community Relations Plan
Adobe PDF (44k)

The Community Relations Plan (CRP) formalizes the extent of public involvement and the tools that will be used by the USDA Forest Service to keep the public informed. Some of the features of the plan include scheduling public meetings; using area newspapers to announce pertinent project events; providing for acceptance of public comment; establishing information repositories; providing project information via the internet; and, establishing a project mailing list for occasional mailings.

Site-Wide Sampling and Analysis Plan
Adobe PDF (163k)

The Site-Wide Sampling and Analysis Plan (SAP) describes the objectives, field methods, analytical methods, data quality objectives, quality control procedures, and standard operating procedures used to guide collection and analysis of environmental data for the project. The SAP is comprised of two parts, a Field Sampling Plan (FSP) and a Quality Assurance Project Plan (QAPP). The FSP presents a detailed description of field investigation activities. The QAPP describes quality parameters and procedures to ensure that all data collection efforts produce data of known quality.

Adit Discharge Engineering Evaluation/Cost Analysis
Adobe PDF (8,586k)

This draft Response Action EE/CA presents the scope, goals, and objectives of a non-time-critical removal action for mining-related discharges present in the New World Mining District. A total of 27 discharges were inventoried in the District, and 11 discharges were determined to pose a risk to human health or the environment. The EE/CA presents site characterization data, evaluates risk to human health and the environment, and includes a screening of removal technologies and technology process options to address the discharges. Removal action alternatives were developed for the discharges and then evaluated in detail. A preferred alternative and estimated costs are included in the evaluation.

Your comments on the Draft Adit Discharge Engineering Evaluation/Cost Analysis are welcome. Please send your comments to the following address by March 2, 2007:

Once we have received comments, the document will be modified as necessary and a final version of the document will be issued.

Miller Creek Response Action Engineering Evaluation/Cost Analysis - Final
Adobe PDF (1,787k)

This document adopts the draft document as final and presents responses to comments received from cooperating federal and state agencies and the public.

Draft Miller Creek Response Action Engineering Evaluation/Cost Analysis
Adobe PDF (7,494k)

The draft Miller Creek Response Action EE/CA presents the scope, goals, and objectives of a non-time-critical removal action for mine waste present in the Miller Creek drainage. In addition, ancillary actions are proposed that address natural resource restoration related to roadways as sediment sources to surface waters, and wetlands restoration near the portal of the Glengarry Adit in Fisher Creek. The EE/CA presents site characterization data, evaluates risk to human health and the environment, and establishes goals for the response action. The document includes a screening of removal technologies and technology process options, develops several alternatives for cleanup of the waste sources present in Miller Creek, and provides a detailed engineering analysis of the alternatives. A preferred alternative, along with estimated costs, is also identified.

Como Basin/Glengarry Adit/Fisher Creek Engineering Evaluation/Cost Analysis (EE/CA) - Final
Adobe PDF (1,304k)

This document adopts the draft document as final and presents responses to comments received from the cooperating federal and state agencies and the public.

Draft Como Basin/Glengarry Adit/Fisher Creek Engineering Evaluation/Cost Analysis (EE/CA)
Adobe PDF (1,837k)

The Draft EE/CA for cleanup work proposed in the Como Basin, at the Glengarry Mine, and at 43 remaining waste rock dumps in the headwaters of Fisher Creek is now available to the public for comment. This document identifies site characteristics and environmental problems associated with mine wastes in these areas, assesses risk to human health and the environment from these wastes, and screens and develops potential cleanup alternatives for each of the three areas. A preferred response action alternative is identified in the document.

McLaren Pit Response Action EE/CA (Final)
Adobe PDF (1,071k)

This document adopts the draft document as final and presents responses to comments received from the cooperating federal and state agencies and the public.

McLaren Pit Response Action EE/CA (Draft)
Adobe PDF (1,288k)

The McLaren Pit Response Action EE/CA presents the scope, goals, and objectives of a non-time-critical removal action for the headwaters of Daisy Creek. The EE/CA presents site characterization data, evaluates risk to human health and the environment, and establishes goals for the response action. The document includes a screening of removal technologies and technology process options, develops several alternatives for cleanup of the waste sources present at the headwaters of Daisy Creek, and provides a detailed engineering analysis of the alternatives. A preferred alternative, along with estimated costs, is also identified.

Selective Source Response Action Engineering Evaluation/Cost Analysis
Adobe PDF (585k)

The Selective Source Response Action EE/CA presents the scope, goals, and objectives of the initial non-time-critical removal action along with an analysis of the alternatives that were developed to meet these goals. The EE/CA includes a screening of removal technologies and technology process options and an engineering analysis of the site data.

The EE/CA is written to include an explanation of the removal action objectives, a summary of pertinent site data that show the nature and extent of contamination relevant to the removal action, a streamlined risk evaluation, identification of applicable reclamation technologies and process options, development and screening of alternatives, and an estimate of costs that are needed to support the selection of an alternative. Comments were received on the draft document and incorporated into this final report. A preferred alternative has been selected by the USDA Forest Service and an action memorandum has been issued.

Technical Memorandum (April 13, 2009)- Non-Degradation Analysis for McLaren Adit Infiltration Basin
Adobe PDF (88.1KB)

Additional work is scheduled for the McLaren Adit during the summer of 2010, and includes; backfilling the adit portal with coarse rock, installing a drain-pipe inward of the rock plug to capture and direct adit discharge into an infiltration basin located outside and down gradient of the adit, and surface reclamation. Tetra Tech prepared a non-degradation calculation for the proposed infiltration gallery to treat seepage water from the McLaren Adit. Review of the data and non-degradation calculations shows that only the trigger value for zinc would be exceeded in groundwater beneath the infiltration gallery, but no applicable DEQ-7 ground or surface water quality standards for zinc would be exceeded. Dilution of aluminum, copper, and manganese concentrations in groundwater would occur upon mixing with adit seepage. Therefore, the calculated non-degradation values show that discharges from the proposed infiltration gallery will result in “non-significant” changes in water quality.

Technical Memorandum (April 6, 2009)- McLaren Subsurface Drain Anaerobic Bioreactor System Review
Adobe PDF (1.08MB)

This review is a reexamination of the anaerobic bioreactor system proposed for the McLaren drains in the EE/CA. A passive solid substrate bioreactor (SSBR) and a semi-passive liquid substrate bioreactor system (LSBR) are compared. The water flow rate and quality data have been reevaluated for each source. An estimated cost analysis for bench scale pilot studies is presented, and the sensitivity of the system to changing flow and chemistry conditions is discussed. Finally, the construction, operations and maintenance cost analysis presented in the EE/CA has been updated to provide further detail and refined cost estimates for the SSBR and LSBR systems based on these analyses.

Technical Memorandum (February 6, 2009)- Spatial Distribution of Metals in Groundwater of the New World Mining District - Implications for a Controlled Groundwater Area
Adobe PDF (3.73MB)

This technical memorandum presents geochemical data and maps that illustrate the spatial extent of metal concentrations in groundwater that exceed regulatory standards and guidelines within the New World Mining District in Park County, Montana. This memorandum also provides a basis for consideration of the establishment of a controlled groundwater area as an appropriate administrative/regulatory solution to groundwater quality issues in the District.

Technical Memorandum (January 12, 2009)- New World Revegetation Monitoring: Review and Recommendations
Adobe PDF (45K)

This memorandum describes long-term revegetation monitoring sampling methods for the New World Mining District. Long-term revegetation monitoring has occurred in the district since 1999. In an effort to successfully meet objectives and standardize protocols, sampling methods and revegetation cover value goals are outlined.

Technical Memorandum (March 16, 2005; Revised December 2, 2005) – Sediment Characterization - Daisy and Fisher Creeks
Adobe PDF (2,817K)

This technical memorandum presents streambed sediment characterization activities that were conducted in the Daisy Creek and Fisher Creek drainages during September 2004. Sediment characterization involved mapping and sampling fine-grained sediments present in the two stream courses. Streambed sediments were mapped, and samples were analyzed for total metals concentrations.

Technical Memorandum (April 8, 2005) – Potential Methods to Estimate Drainage into the Repository Sump
Adobe PDF (78K)

This memorandum presents potential methods that could be used to estimate draindown from waste that will be placed in the repository during the upcoming repository expansion.

Technical Memorandum (January 18, 2005) – 2004 McLaren Pit Area Groundwater and Surface Water Monitoring
Adobe PDF (1,899K)

This memorandum summarizes monitoring activities that were conducted in the McLaren Pit area in 2004. Monitoring activities included monitoring surface water and groundwater quality on numerous occasions during the period of April through October. This memorandum was initially posted to the website on February 2, 2005 and was updated on March 16, 2005 to correct an error in a calculation on Page 4, second paragraph under surface water, last two sentences in the paragraph.

Technical Memorandum (June 24, 2004) – Summary of Repository Sump Monitoring – July 2003 through June 17, 2004
Adobe PDF (624K)

This memorandum presents a summary of the monitoring data collected at the Selective Source repository since July 2003. Monitoring data presented in this memorandum include sump water level and chemistry, groundwater levels in surrounding wells, and surface water quality data. A detailed discussion of the results is presented along with graphs and tables of data.

Technical Memorandum (January 7, 2004) – 2003 McLaren Pit Area Groundwater Monitoring
Adobe PDF (6.98MB)

This memorandum summarizes the results of hydrogeologic investigation activities conducted in 2003 in the McLaren Pit area. Investigation activities included installing 4 monitoring wells, and monitoring groundwater quality and groundwater characteristics.

Technical Memorandum (January 7, 2004) – 2003 Como Basin Area Groundwater Monitoring
Adobe PDF (3.34MB)

This memorandum summarizes the results of hydrogeologic investigation activities conducted in 200 in the Como Basin area. Investigation activities involved monitoring groundwater characteristics.

Technical Memorandum (January 7, 2004) – McLaren Pit Cover Monitoring System
Adobe PDF (630k)

This memorandum describes the installation of the McLaren Pit Cover Monitoring System and methods used to determine moisture content in waste before and after the McLaren Pit Cover System was installed.

Technical Memorandum (June 23, 2003) - Summary of Repository Sump Monitoring - Fall 2002 through June 2003
Adobe PDF (105k)

This memorandum presents a summary of the monitoring data collected since repairs were completed at the Selective Source repository in September 2002. Both water level, water volume, and water chemistry data are reviewed.

Technical Memorandum (June 20, 2003) - Estimate of Drainage from Waste into Repository Sump
Adobe PDF (113k)

This memorandum presents several estimates for the total volume of water that may be expected to drain from the waste placed in the Selective Source repository into the repository sump.

Technical Memorandum (January 10, 2003) - McLaren Adit Assessment
Adobe PDF (697k)

This memorandum summarizes reopening and assessment activities conducted at the McLaren Adit during 2001 and 2002.

Technical Memorandum (January 6, 2003) - Summary of McLaren/Como Hydrogeologic Investigations
Adobe PDF (2,946k)

This memorandum summarizes the results of hydrogeologic investigation activities in the McLaren Pit area and in the Como Basin area that were conducted in 2001 and 2002. Investigation activities included installing 21 monitoring wells in the McLaren Pit area, installing 20 monitoring wells in the Como Basin, aquifer testing results in selected McLaren Pit area monitoring wells, and the results of monitoring groundwater quality and groundwater characteristics.

Technical Memorandum (December 24, 2002) - Soil Sampling Results, Gallatin National Forest Land Adjacent to the Great Republic Smelter Site
Adobe PDF (49k)

This memorandum describes methods and results of soil sampling on the Gallatin National Forest adjacent to the Great Republic Smelter site. Sampling was performed in 2002. Sampling was conducted to evaluate the extent and magnitude of metals concentrations in surface soil on National Forest System lands resulting from historic operation of the smelter.

The figures in this document are too large to include in this PDF file. A hard copy of the document is available in the document repository.

Memorandum (November 7, 2002) - Proposed Reclamation Activities for the Fisher Creek Source Area
Adobe PDF (53k)

This memorandum describes specific work that is proposed for the Fisher Creek Source Area. The Fisher Creek Source Area includes remaining mine dumps and disturbances located in the Fisher Creek drainage where cleanup work will be done according to the preferred alternative described in the Como Basin/Glengarry Adit/Fisher Creek Engineering Evaluation/Cost Analysis. Cleanup activities are described for 12 sites in the drainage.

Technical Memorandum - Como Basin Erosional Evaluation
Adobe PDF (16k)

This memorandum describes erosional problems in the Como Basin and an evaluation of potential solutions.

Technical Memorandum - Oil Stored at the Gold Dust Adit
Adobe PDF (52k)

This memorandum describes the condition of oil containers left at the Gold Dust Adit.

Technical Memorandum - Sump Water Non-Degradation Calculations for Surface and Groundwater, Selective Source Response Action Repository
Adobe PDF (204k)

This memorandum was prepared at the request of the Montana Department of Environmental Quality (DEQ) to document that water contained in the repository sump can be made into snow, land applied at the repository site, and not adversely affect surface water or groundwater quality. Water had collected in the sump as a result of a snowfall event during cap construction at the repository in the fall of 2001. Laboratory analysis of water collected in the sump indicated water quality with a neutral pH, high total dissolved solids, and elevated concentrations of iron and manganese. Concentrations of other heavy metals were below detection (aluminum, cadmium, chromium, lead, mercury, and zinc) or just above detection levels (arsenic, barium, copper, and selenium).

Technical Memorandum (February 15, 2002) - Underground Mine Assessment
Adobe PDF (1,502k)

This memorandum summarizes mining history, geologic nature of ore deposits, and available baseline information concerning 16 principle underground mines located on District Property in the New World Mining District. The memorandum presents data on the underground workings, water quality from adit discharges, and mine waste chemistry, as well at the potential for closure and closure options.

Technical Memorandum (November 21, 2001) - Revised and Final Report on Potential Rock and Soil Sources, McLaren Pit Capping System and Drainage Channels, McLaren Pit Response Action
Adobe PDF (755k)

This memorandum summarizes the results of field investigations to identify potential sources of rock and soil in the District that could be used in the construction of the McLaren Pit Response Action.

Technical Memorandum (November 13, 2001) - Reopening of the Portals of the Lower Spaulding Adit and the McLaren Adit or Winter Tunnel
Adobe PDF (225k)

This memorandum presents a summary of the work done to reopen the Lower Spaulding and McLaren adits during the 2001 field season.

Technical Memorandum (November 15, 2001) - Reopening and Assessment of the Glengarry Mine in 2001 and Assessment of the Glengarry Dump as Potential Backfill
Adobe PDF (323k)

This memorandum summarizes the rehabilitation work done in the Como Raise in 2001. It also presents the results of bench scale testing of the Glengarry waste dump material.

Technical Memorandum (December 3, 2001) - Hydrogeology Group Meeting Notes (September 6, 2001 meeting)
Adobe PDF (104k)

This memorandum summarizes the September 6, 2001, discussions of the Hydrogeology Meeting Group. The main issues covered during this meeting were the Glengarry/Como Raise reopening results, the Glengarry underground water quality results, metals loading to Fisher Creek, and a discussion of tracer studies that were conducted in upper Fisher Creek.

Hydrogeology Group Teleconference Meeting Summary, April 4, 2004
Adobe PDF (59k)

These meeting notes summarize the discussions held regarding proposed surface water and groundwater monitoring activities for 2005. Comments made during the conference call were incorporated into the public draft of the 2005/2006 Work Plan, which was issued on May 11, 2005.

Hydrogeology Meeting Summary, February 18, 2003, Bozeman, Montana
Adobe PDF (39k)

These meeting notes summarize the discussions held in January and February 2003 concerning District-wide surface water and groundwater monitoring. Several issues were discussed, and action items that were identified during the meetings were included in the 2003/2004 Work Plan.

Meeting Summary, Natural Resources Working Group Technical Meeting
Adobe PDF (71k)

This memorandum summarizes the discussions of the Natural Resources Working Group Technical Meeting held in Bozeman, Montana at the Bozeman Public Library on June 19, 2002.

Meeting Summary, Repository Sump Water Meeting
Adobe PDF (47k)

This meeting summary documents the presentations made and discussions held on water in the repository sump. The presentations and discussions covered repository construction, remaining work to be completed on the repository in 2002, water conditions in the repository sump, snowmaking operations conducted in April 2002, and the results of repository sump water quality monitoring. The meeting was held in Bozeman, Montana at the First Security Bank conference room on June 4, 2002.

Meeting Summary, New World Annual Technical Meeting, New World Annual Public Meeting
Adobe PDF (267k)

This memorandum summarizes the discussions of the annual meetings held in Bozeman, Montana at the GranTree Inn on January 23 and 24, 2002.

Meeting Summary, Hydrogeology Group Technical Meeting
Adobe PDF (94k)

This memorandum summarizes the discussions of the Hydrogeology Group Technical Meeting held in Bozeman, Montana at the Forest Service Supervisor's Office on January 22, 2002.

2008 Surface Water and Groundwater Monitoring Report
Adobe PDF (24MB)

This document presents surface water and groundwater data collected during the 2008 calendar year in conjunction with response and restoration activities at the New World Mining District.

2007 Surface Water and Groundwater Monitoring Report
Adobe PDF (34.4MB)

This document presents surface water and groundwater data collected during the 2007 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 12 sampling stations for three sampling events in April, June, and September 2007 to satisfy the requirements of the rule approving temporary standards on District streams. In addition, surface water quality data were collected from 18 supplemental stations in the Daisy Creek, Stillwater River, Fisher Creek, Miller Creek, and Soda Butte Creek drainages. Groundwater was sampled from monitoring wells in July and August, in the District, to continue the characterization of groundwater quality in several areas. Limited monitoring was also conducted in wells in the McLaren Pit vicinity during September.

2006 Surface Water and Groundwater Monitoring Report
Adobe PDF (9.32MB)

This document presents surface water and groundwater data collected during the 2006 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 13 sampling stations for three sampling events in April, July, and September 2006 to satisfy the requirements of the rule approving temporary standards on District streams. In addition, surface water quality data were collected from 14 supplemental stations in the Fisher, Daisy, and Miller creek drainages. Groundwater was sampled in July at most monitoring sites in the District to continue the characterization of groundwater quality in several areas. Monitoring wells were also sampled in the McLaren Pit in October.

2006 Revegetation Monitoring Report
Adobe PDF (1.98MB)

The 2006 Revegetation Monitoring Report summarizes the results of vegetation cover monitoring conducted at the reclaimed McLaren Pit, McLaren Triangle, and McLaren borrow area, as well as three reclaimed sites in Miller Creek. Revegetation monitoring was conducted during the week of August 21, 2006. To reduce file size, color photos taken during monitoring were extracted to the following file: Site Photographs (19.9MB)

2005 Reclamation Monitoring Report
Adobe PDF (11.9MB)

This monitoring report summarizes the results of reclamation monitoring conducted at the McLaren Pit, McLaren Triangle, and the McLaren borrow area in 2005.

2004 Reclamation Monitoring Report
Adobe PDF (2.55MB)

This technical memorandum summarizes the results of reclamation monitoring conducted at the McLaren Pit and McLaren Triangle in 2004. Sites that were reclaimed in 2001 were also visited and photographs of these sites are included in the report.

2003 Reclamation Monitoring Report
Adobe PDF (4.26MB)

This document summarizes the results of reclamation monitoring conducted in the District at mine waste removal areas reclaimed by the Forest Service in 2001 and at the McLaren Triangle.

2005 Surface Water and Groundwater Monitoring Report
Adobe PDF (8.5MB)

This document presents surface water and groundwater data collected during the 2005 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 13 sampling stations for three sampling events in April, July, and September 2005 to satisfy the requirements of the rule approving temporary standards on District streams. In addition, surface water quality data were collected from 14 supplemental stations in the Fisher, Daisy, and Miller creek drainages. Groundwater was sampled in July at most monitoring sites in the District to continue the characterization of groundwater quality in several areas. Monitoring wells were also sampled in the McLaren Pit in September.

2004 Surface Water and Groundwater Monitoring Report
Adobe PDF (2.4MB)

This document presents surface water and groundwater data collected during the 2004 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 13 sampling stations for three sampling events in April, July, and September 2004 to satisfy the requirements of the rule approving temporary standards on District streams. In addition, surface water quality data were collected from 14 supplemental stations in the Fisher, Daisy, and Miller creek drainages. Groundwater was sampled in July at most monitoring sites in the District to continue the characterization of groundwater quality in several areas. Monitoring wells were also sampled in the McLaren Pit in August and September.

2003 Surface Water and Groundwater Monitoring Report
Adobe PDF (3.87MB)

This document presents surface water and groundwater data collected during the 2003 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 13 sampling stations for three sampling events in April, July, and September 2003 to satisfy the requirements of the rule approving temporary standards on District streams. Groundwater was sampled in July as well to continue the characterization of groundwater quality in several areas. Monitoring wells sampled were located in the McLaren Pit, Como Basin , Fisher Creek, Miller Creek, Daisy Creek, and Selective Source repository areas. In addition, water quality data were collected from numerous other sites including the following: Como Basin and McLaren pit area tributaries; McLaren Millsite runoff sampling (August); 23 discharging adits, including the Glengarry, McLaren, and Gold Dust; construction monitoring sites associated with construction at the McLaren Pit and Glengarry Adit; and monitoring of the Selective Source repository area.

2002 Surface Water and Groundwater Monitoring Report
Adobe PDF (1,825k)

This document presents surface water and groundwater data collected during the 2002 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 12 sampling stations for three sampling events in April, July, and October 2002 to satisfy the requirements of the rule approving temporary standards on District streams. Groundwater was sampled in July as well to continue the characterization of groundwater quality in several areas. Monitoring wells sampled were located in the McLaren Pit, Como Basin, Fisher Creek, Miller Creek, Daisy Creek, and Selective Source repository areas. In addition, water quality data were collected from numerous other sites including the following: five discharging adits, including the Glengarry, McLaren, and Gold Dust; construction monitoring sites associated with the Selective Source repository area; construction monitoring sites associated with mine waste dump areas reclaimed in 2001; and, construction monitoring sites associated with construction of the McLaren Pit Response Action.

2002 Reclamation Monitoring Report
Adobe PDF (421k)

This document summarizes the results of reclamation monitoring conducted in the District at three areas: Mine waste removal areas reclaimed by the Forest Service in 2001; the McLaren Triangle; and, roads reclaimed during the period 1993 to 1996 by Crown Butte Mining, Inc. The memo describes the methods and results of monitoring and provides specific recommendations for maintenance of reclaimed areas.

2001 Surface Water and Groundwater Monitoring Report
Adobe PDF (193k)

This document presents surface water and groundwater data collected during the 2001 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 12 sampling stations for three sampling events in April, June, and October 2000 to satisfy the requirements of the rule approving temporary standards on District streams. Groundwater was sampled in June as well to continue the characterization of groundwater quality in several areas. Monitoring wells sampled were located in the McLaren Pit, Como Basin, Fisher Creek, Miller Creek, and Daisy Creek areas. In addition, water quality data collected from 11 discharging adits, including the Glengarry Adit, is also summarized in the report.

2000 Surface Water and Groundwater Monitoring Report
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This document presents surface water and groundwater data collected during the 2000 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 12 sampling stations for three sampling events in April, July and October 2000 to satisfy the requirements of the rule approving temporary standards on District streams. Groundwater was sampled in July to continue the characterization of groundwater quality in several areas. Monitoring wells sampled were located in the McLaren Pit, Como Basin, Fisher Creek, Miller Creek, and Daisy Creek areas.

1999 Surface Water and Groundwater Monitoring Report
Adobe PDF (157k)

This document presents surface water and groundwater data collected during the 1999 calendar year in conjunction with response and restoration activities at the New World Mining District. Surface water samples were collected from 10 sampling stations for three sampling events in May, July, and September 1999 to satisfy the requirements of the rule approving temporary standards on District streams. Groundwater was sampled to continue the characterization of groundwater quality in several areas. Monitoring wells sampled were located in the McLaren Pit, Como Basin, Fisher Creek, Miller Creek, and Daisy Creek areas. Two groundwater monitoring events were completed, one in May (12 monitoring wells sampled) and one in July (27 monitoring wells sampled).

2000 Long-Term Revegetation Monitoring Report
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Presents the results of area-wide and cover monitoring that was performed on District Property in 2000.  The areas monitored in 2000 include the McLaren Pit, Como Basin and roads reclaimed by Crown Butte Mining, Inc. Monitoring was conducted in accordance with the methods and procedures described in the Long-Term Revegation Monitoring Plan.  The monitoring report includes a discussion of results and forwards recommendations for future work in the monitored areas.  Appendices included in the report are not available on this web site but can be found in the hard copy version which is on file at the project information repositories.

1999 Long-Term Revegetation Monitoring Report (Final)
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Presents the results of area-wide and cover monitoring that was performed on District Property in 1999.  The areas monitored in 1999 include the McLaren Pit, Como Basin and roads reclaimed by Crown Butte Mining, Inc.  Monitoring was conducted on about 26 acres of reclaimed mine areas and about 9.8 miles of reclaimed roads.  Monitoring was conducted in accordance with the methods and procedures described in the Long-Term Revegation Monitoring Plan.  The monitoring report includes a discussion of results and forwards recommendations for future work in the monitored areas.  Appendices included in the report are not available on this web site but can be found in the hard copy version which is on file at the project information repositories.

Final Water Quality Compliance Report, New World Response and Restoration Project, with Cover Letter from Mary Beth Marks, OSC, New World Project
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Pre-Mining Water Quality (Final)
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The purpose of this report is to estimate what surface water quality might have been in Daisy and Fisher Creeks prior to mining in the New World District. Because the area of interest has been disturbed by mining, it is not possible to directly measure the pre-mining conditions. A variety of methods have been proposed to estimate pre-mining water quality conditions but none provide certainty. Therefore, various methods are used in this report to infer the estimated pre-mining conditions.

An Empirical Method for Estimating In-Stream Pre-Mining pH and Dissolved Cu Concentration in Catchments with Acidic Drainage and Ferricrete: By Nimick, D.A., Gurrieri, J.T., and Furniss, George, Applied Geochemistry, 2009
Adobe PDF (357 k)

Metal Concentrations and Sources in the Miller Creek Watershed, Park County, Montana, August 2000 - US Geological Survey, Water-Resources Investigations Report 02-4148
http://water.usgs.gov/pubs/wri/wri024148/index.htm

Quantification of Metal Loads by Tracer Injections and Synoptic Sampling in Daisy Creek and the Stillwater River, Park County, Montana, August 1999 - US Geological Survey, Water-Resources Investigations Report 00-4261
http://water.usgs.gov/pubs/wri/wri004261/index.htm

Quantification of metal loading in Fisher Creek by tracer injection and synoptic sampling, Park County, Montana, August 1997 - US Geological Survey, Water-Resources Investigations Report 99-4119
http://co.water.usgs.gov/toxics/reports/fisher/

Final Project Report (September 3, 2002) - Humidity Cell Test Results - Weeks 1 to 20, McLaren Pit Capping Material
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This letter report presents the results of humidity cell testing on the area referred to as the Daisy Creek Moraine. Humidity cell testing used accelerated weathering methods to determine if the moraine material exhibited acid producing characteristics or generated leachate with concentrations of metals that would be of concern for reclamation purposes. The material will be used to cover the McLaren Pit liner.

Progress Report, Temporary Water Quality Standards, 3-Year Review
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This document was prepared by the Forest Service to fulfill the requirements of the Montana Department of Environmental Quality (DEQ) for the temporary water quality standards approved by DEQ for portions of Fisher Creek, Daisy Creek, and the headwaters of the Stillwater River. Section 75-5-312 (10), MCA, provides for a 3-year review of temporary standards, which involves a public hearing with notice and opportunity for comment. Depending on DEQ's review, temporary standards can be left unchanged, modified, or terminated. The purpose of this report is to present the cleanup actions taken to date in the District by the Forest Service, review long-term water quality data collected since the standards became effective in June 1999, and compare project progress with that presented in the Implementation Plan.

Data Summary McLaren Pit, Como Basin, and Glengarry and Gold Dust Adit Areas
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This document summarizes environmental data collected in the District at the referenced sites. The data summary focuses on surface water, groundwater, and geochemical information, summarizing pertinent findings of previous investigators, developing conceptual models of contaminant sources and migration pathways for the sites, and identifying data needed to complete the environmental characterization of the sites.

Phase II Repository Site Investigation Report
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This report presents the results of a Phase II investigation conducted at potential repository sites in the New World Mining District in 1999.  A mine waste repository is needed in the District to dispose of mine wastes that are currently located at disperse sites throughout the District.  The Phase II investigation was conducted in accordance with recommendations forwarded in the Repository Site Evaluation Report completed by Maxim in June 1999.  The goal of the Phase II investigation was to characterize the geologic and hydrogeologic characteristics of the SB-4 area to the extent that definitive recommendations could be made on the suitability of the area for siting a mine waste repository.  Investigation activities described in the report include on-site inspections, geophysical exploration, subsurface material evaluation, and groundwater characterization.

Repository Site Evaluation Report
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This report evaluates and summarizes existing technical information on groundwater, surface water, geology, soil, and other resources at three potential mine waste repository areas located within the New World Mining District. A central repository site is being considered to isolate approximately 60,000 cubic yards of waste rock and tailings located on District Properties and an additional 370,000 cubic yards of tailings located at the McLaren tailings site near Cooke City. Advantages and disadvantages are presented for each of the three areas evaluated and recommendations for additional data at the preferred sites are stated.

Action Memorandum – Glengarry Mill Site, Lower Tredennic and Black Warrior Adits Response Action
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This is the decision document signed by the regional forester that presents the logic for selecting the response alternative described in the association engineering evaluation/cost analysis.

Action Memorandum (February 23, 2004) – Miller Creek Response Action
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This is the decision document signed by the regional forester that presents the logic for selecting the response alternative described in the Miller Creek Response Action Engineering Evaluation and Cost Analysis.

Action Memorandum - Como Basin/Glengarry Audit/Fisher Creek Response Action
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This is the decision document signed by the regional forester that presents the logic for selecting the response alternative described in the association engineering evaluation/cost analysis.

Action Memorandum - McLaren Pit Response Action
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This is the decision document signed by the regional forester that presents the logic for selecting the response alternative described in the associated engineering evaluation/cost analysis.

Action Memorandum - Selective Source Response Action
Adobe PDF (147k)

This is the decision document signed by the regional forester that presents the logic for selecting the response alternative described in the associated engineering evaluation/cost analysis.

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