This section contains brief descriptions of projects which Atlatl personnel have worked on, and illustrates our range of capabilities.  We have considerable project management experience that supplements the technical expertise of our professional staff.  We can manage multi-disciplinary projects, from conception to final design and implementation.  Atlatl's project-orientated approach vests leadership responsibilities in our project managers, to direct and organize thorough efforts that consistently meet performance, technical, and budgetary goals.

Atlatl project managers are experienced in addressing complex projects and have the resources to maintain firm project direction and control.  Project managers identify key project tasks and assign responsibilities within each task.  Atlatl's task teams provide the support the project manager requires to accomplish objectives on schedule and within budget.  Engineers, scientists, and technical specialists from within Atlatl's staff, or subcontracted to Atlatl, support the project manager's ability to tackle large and complex environmental projects.

Examples of projects, which our professional employees have completed, are provided on the following pages.

Client:  Major U.S. Aerospace/Environmental Contractor.

Problem:  Petroleum contamination from a former buried storage tank at a U.S Air Force missile site required delineation of vertical and horizontal extent in the vicinity of sensitive underground installations.

Resolution:  Provide extent of contamination sampling at precise locations and depths using Geoprobe technology.

Services:  Geoprobe Macro-Core soil sampling, under specified sampling and decontamination protocol.

Project Description:

Provided on-site Geoprobe soil sampling services, on a subcontract basis to a major aerospace/environmental contractor, at a remote missile silo/launch control facility. Extent of contamination was determined radially, and horizontally. The work scope included sampling and packaging of 4-foot soil cores for the prime contractor, at depths from surface to 40 feet, while complying with stringent client-specified sampling and decontamination protocol.

Client: City of Powell, Wyoming

Problem:  Utility pole transformer spill in a residential area.

Resolution:  PCB contaminant recovery and removal.

Services:  Spill response, and site assessment, excavation and removal of contaminants, equipment decontamination, waste transportation and disposal.

Project Description:

Responded to a PCB oil spill that occurred when heavy construction equipment knocked a utility pole and transformer down in a residential area. Worked closely with municipal employees while performing the initial site assessment and remediation. PCB contaminated soils were excavated and removed from the site, the heavy equipment in the accident was decontaminated and the contaminated power pole was dismantled and containerized. The damaged transformer and spill clean-up debris was transported and disposed of. Post clean-up sampling was performed to assure spill clean-up was complete.

Project: Action On An Administrative Order

Client: Construction Company

Problem:  Client received Administrative Order concerning improperly buried drums of miscellaneous materials.

Resolution:  Performing (as required by the Administrative Order) drum contents identification, drum consolidation, drum disposal, and developing a RI (remedial investigation) work plan

Services: Project management, hazardous materials management/consulting, environmental compliance and monitoring, remedial site services, materials disposal/transport, site assessment.

Project Description:

An initial site assessment was performed on a buried drum site. Personnel were then retained to address the Administrative Order that followed. A work plan, a site safety plan, and a QA/QC plan were prepared. Per the plans approved by the State Agency, personnel supervised the consolidation of the waste. A Remedial Investigation Plan, and an UST investigation and corrective action plan was developed.

Client: Service station inside a national park.

Problem:  Gasoline spill resulting from an underground storage tank leak causing soil and groundwater contamination.

Resolution:  Contaminant recovery

Services:  Initial site investigation, remediation plan, remediation system design and installation, waste transportation and disposal, post-remedial monitoring plan.

Project Description:

Gasoline had leaked from a buried pipe connection on an underground storage tank. Site investigation and remediation plans were developed in consultation with the US Park Service and state agencies. The site remediation included installation of product recovery trenches, monitoring well installation and sampling, aquifer testing, and soil vapor monitoring. Over 1300 gallons of product were recovered.

Client:  Service station located in Butte, Montana.

Problem: Gasoline spill resulting from an underground storage tank leak causing soil and groundwater contamination.

Resolution:  Contaminant recovery

Services:  Initial site investigation, remediation plan, recovery of contaminants, post-remedial monitoring plan.

Project Description:

An estimated 3,300 gallons of gasoline had leaked from underground storage tank systems. Site investigation and remediation plans were developed in consultation with the client and state agencies. The site remediation included the installation of a product recovery well, soil vapor extraction system, ground water pump and treat (air sparging) system, monitoring well installation and sampling, aquifer testing, and soil vapor extraction monitoring. More than 1,500 gallons of product have been recovered to date.

Client: Coal Fired Utility Plant, Montana

Problem: State required a leak detection system for two 500,000 gallon aboveground storage tanks with underground piping and a pressurized, circulation system.

Resolution: A product inventory system to monitor flows and measure consumption.

Services:  Regulation interpretation, research and review, regulation negotiation.

Project Description:

State regulations required aboveground storage tanks with underground piping systems to be equipped with leak detection and automatic alarms. A design was specified for leak detection for the system. There were no off-the-shelf systems available, because the diesel fuel continually circulated under pressure for emergency situations. Consequently, inventory control monitoring on the tanks was used, with automatic alarms for detection of a reduction in volume. As a backup, a series of monitoring wells along the pipeline were recommended to determine locations of potential leaks, and to detect vapors or groundwater contamination.

Client: School District

Problem: Fueling system at two bus garages needed upgrading and replacement.

Resolution: Upgraded, modified, and replaced outdated fueling systems with state-of-the-art fueling facilities

Services: Underground tank removal, underground tank installation, leak detection system installation, replacement of underground fueling facilities

Project Description:

Atlatl personnel managed the project to remove one 10,000 gallon, two 2,000 gallon, and one 500 gallon underground storage tanks, and two 10,000 gallon underground fuel storage tanks. These tanks were replaced with one 10,000 gallon and one 2,000 gallon underground storage tanks with leak detection, cathodic protection, pumps, and dispensers. The islands were replaced along with all electrical systems, concrete, and asphalt.

Client:  National Park Service

Problem:  Fueling system needed to be upgraded to meet the new regulations.

Resolution: Removed and replaced fueling system to meet requirements.

Services: Underground Storage Tank Removal; Underground Storage Tank Installation.

Project Description:

Atlatl personnel managed the contracts to remove two 1,000 gallon underground gasoline tanks and all accessories, and install one 1,000 gallon underground diesel fuel tank and one 2,000 gallon underground gasoline fuel tank. Each fuel tank was equipped with a new fuel pump, monitoring system, level gauges, and other appurtenances necessary to meet requirements of jurisdictional authorities. One new double fuel dispenser with key controls was installed to serve both tanks. A new concrete fuel island with canopy and bumper posts and new asphalt paving for the area were also installed.

Project: Assessment and Corrective Action Plan

Client: Service Station/Convenience Store.

Problem: Underground product line leakage from aboveground storage tank.

Resolution: Free product recovery. (gasoline)

Services: Site assessment, design free product recovery system, construct and implement recovery system.

Project Description:

A site assessment to identify the extent of soil and groundwater contamination was conducted. The assessment revealed that gasoline contamination had impacted the groundwater. A system to collect the free product, consisting of a trench with a perforated vertical culvert was installed. The trench was backfilled with permeable material to allow product migration into the system. A pump was installed in the culvert to skim free product from the groundwater.

Client:  Private Businessman

Problem:  Potential transfer of ownership requiring determination of existing and/or potential environmental hazards and/or liabilities.

Resolution:  Level 1 environmental site assessment.

Services:  Site investigation, site assessment.

Project Description:

A Level 1 Environmental Site Assessment on a small-town commercial property was performed. The property had been used for light manufacturing and retail purposes. The assessment included site reconnaissance, interviews with a past owner and neighbors, checks with government agencies, visual and electronic location of buried tanks and piping, evaluation of past and present land use, and contact of government agencies to verify historic land use, hazardous waste activity, and tank registration. An assessment report, including photographs, was submitted to the client, which identified liabilities from unregistered, abandoned belowground tanks and piping on the site. 

Client: Agricultural Company

Problem:  Soil contaminated from discarded used pesticide solutions behind a warehouse

Resolution:  Excavation and removal of contaminated soil to an EPA-permitted RCRA facility

Services:  Profiling/characterizing contaminated soil, excavation of contaminated soil, transport of soil to an EPA-permitted RCRA landfill.

Project Description:

A large agricultural company required remediation of an area contaminated with pesticides. Approximately 1200 cubic yards of pesticide-contaminated soils were excavated and transported to an EPA-permitted hazardous waste landfill. Engineering design and implementation of shoring, to protect foundations and columns of a warehouse impacted by the excavation, was also performed. Backfilling and compaction of the remediated areas was completed.

Project: Bioremediation of 1500 Cubic Yards of Hydrocarbon Contaminated Soil

Client:  U. S. Department of Agriculture, Forest Service.

Problem: Soils contaminated from above ground storage tanks, hydrocarbons leaching into nearby river, remote location, no utility services, difficult access.

Resolution: Solar-powered, computer controlled bio-cell.

Services: Remedial investigation, feasibility study, remedial design, remediation, monitoring, site closure, site reclamation.

Project Description:

An initial investigation was conducted to determine the extent of contamination from past releases of fuel on-site. Several documents indicated major spills during the operational history of the facility. The investigation was completed, design for a system to remediate the contaminated soil was performed, and the remedial action was implemented. The site was then closed and reclaimed. Due to the remote location, the lack of site services (electricity), and the proximity to special use waters in the State of Idaho, a self-contained solar powered system was used to remediate the soil. After 6 months of system operation the remediation was complete. 

Project: RI/FS, Remedial Action

Client:  Wood Products Manufacturing Facility.

Problem:  Soil and groundwater contamination from past use of pentachlorophenol, impacts to sole source aquifer for city, multi-agency regulatory involvement.

Resolution:  Remedial investigation, preliminary designs for bio-cell (to treat excavated soils), in-situ bioventing system (to treat remaining soil), and ground water treatment system (to control and treat the plume and prevent further migration).

Services:  Remedial investigation, feasibility study, remedial design, monitoring.

Project Description:

The investigation phase of the project was completed. A pilot study was performed to identify parameters for the bio-venting and ground water treatment phase. Pilot study and characterization work was completed for the biocell, and preliminary excavation plans and specifications were assembled.

Client:  Service Station

Problem:  Underground storage tank(s) and product line leakage.

Resolution:  Install in-situ vapor extraction\air sparging system.

Services:  Identify impact, site assessment, design system, implement remediation.

Project Description:

A site assessment was conducted to identify the extent of soil and groundwater contamination. The site assessment revealed that hydrocarbon contaminants had impacted the soils and groundwater. Based on the site assessment data collected, an in-situ soil vapor extraction system was designed, installed, and operated. The vapor extraction system consisted of 1 vacuum pump, 4 vapor extraction wells, and 3 vapor monitoring points.

Project: Municipal Landfill Design

Client:  Municipal Government

Problem: Municipal landfill was nearing its capacity.

Resolution:  Design and permit a new Municipal Solid Waste (MSW) landfill.

Services:  Municipal Landfill Consulting.

Project Description:

A new MSW landfill that incorporated the location, operating, design and groundwater monitoring criteria of the Subtitle D regulations was designed. The design met the requirements of the Montana Department of Health and Environmental Sciences "Application For A Solid Waste Management System License". Subsurface soil investigations, groundwater monitoring well installations, and preparation of necessary reports documenting these activities, were performed. An operation and maintenance manual for the landfill was prepared, that included plans for refuse cell development, site drainage, groundwater and leachate monitoring, methane monitoring, personnel and safety training, closure, and post-closure.

Client:  Industrial PRP

Problem: Selection of suitable sites for long term landfill storage of contaminated soils and mine related wastes regulated by CERCLA

Resolution:  Perform a site identification study

Services:   Environmental Consulting.

Project Description:

A waste repository site identification study was performed for a large industrial client to identify potential landfill site areas for long term internment of contaminated soils and mining wastes. A site selection work plan was prepared that identified the procedures and criteria to be used in the study. The site selection process was performed in two phases. Exclusionary criteria were first applied to the study area to exclude areas unsuitable for use as a waste repository. These criteria included parameters related to hydrological, geological, biological and socioeconomic characteristics of the study area. Ninety percent of the 4.15 million acre study area was removed from further consideration in the first phase. The second phase ranked each of the potential site areas according to overall suitability for use as a waste repository.  

Project: Regional Landfill Feasibility Study

Client: Association of County Governments.

Problem: Increased costs to small landfill operations due to RCRA Subtitle D regulations.

Resolution: Perform a regional landfill feasibility study.

Services: Municipal landfill consulting.

Project Description:

Information was collected, and conceptual designs/cost estimates were prepared for three different waste disposal alternatives. Public hearings were conducted to present the alternatives and accept comments to finalize the conceptual designs. The alternatives were evaluated for economic, environmental, socioeconomic, and operational issues. Based on the evaluation, a screening study was performed, which identified potential areas for a regional landfill. A report to the client formulated a strategy and schedule for the recommended alternative.

Client: Chemical Manufacturing Company.

Problem: Particulate separator pond for plant wastewater was filled to capacity.

Resolution: Construct an on-site landfill for the sludge from the particulate separator.

Services: Industrial landfill consulting.

Project Description:

The sludge in the particulate separator contained chromium, and therefore was considered to be a regulated waste by the Wyoming DEQ. A feasibility study indicated that the least-cost alternative was for the client to construct his own licensed landfill and dispose of the sludge on-site. State regulations required a double geosynthetic liner with a leak detection and recovery system. Site conditions required installation of a dewatering system for lowering the water level in a perched aquifer directly below the landfill. The project was designed, the construction specifications and bid packages prepared, and construction project engineering was provided. 

Project: Municipal Landfill Site Selection Study

Client:  Municipal Government

Problem:  Municipal landfill was nearing capacity and a new one needed to be sited.

Resolution:  Perform a municipal solid waste (MSW) landfill site selection study.

Services:  Environmental Consulting.

Project Description:

A MSW landfill site selection study was performed that incorporated the location standards of the RCRA Subtitle D regulations. A two-phase approach was used. The first phase screened out areas unsuitable for a MSW landfill. Remaining areas were then selected for evaluation in the second phase of the study. Second-phase criteria were used to evaluate site characteristics including water resources, biological resources, physical attributes, economics and socioeconomics. Public involvement groups were utilized via a facilitated group decision-making process. After evaluation, the candidate sites were ranked for MSW landfill suitability.