PROJECT SUMMARIES
These sampling of projects are highlighted to demonstrate CRI's capabilities for any size of environmental assessment and/or site restoration project.
Project Name: Stapleton Redevelopment, Denver, Colorado
Date Project Began: March 2000
Date Project Completed: Ongoing
Type of Project: Casey Resources, Inc. (CRI) is the Environmental Project Manager for Forest City Stapleton, Inc., the master developer of the former Stapleton International Airport. This is currently the largest Brownfield Redevelopment Project in the country. The project has included emergency response to contamination discoveries, drum site characterization and remediation, permit compliance (construction dewatering and stormwater management plan implementation).
Type of Contamination: Various contaminants including petroleum and polynuclear aromatic hydrocarbon (PAH) contamination in soils and groundwater.
Project Name: Prairie Gateway Development, Commerce City, Colorado
Date Project Began: December 2004
Date Project Completed: Ongoing
Type of Project: Casey Resources, Inc. (CRI) is the Environmental Program Manager for the development of 950 acres of the former Rocky Mountain Arsenal (RMA) property in Commerce City, Colorado. CRI is responsible for implementing a materials management plan for the development of the property in accordance with the National Wildlife Refuge Act of 1992 including the construction of a 35,000 seat regional soccer stadium. Prior to the initiation of the development, CRI personnel prepared comprehensive Phase I and II Environmental Site Assessments (ESAs) for the property. The Phase I and II ESAs included the review of hundreds of documents pertinent to the property as well as site inspections and soil and groundwater investigations to assess potential impacts associated with the former use of the RMA. These reports are being used as the summary due diligence documents to secure construction financing and environmental insurance coverage for the project. The site is being remediated as necessary to residential standards for redevelopment.
Type of Contamination: Limited area of polynuclear aromatic hydrocarbon (PAH) impacted soils and volatile organic compounds (VOCs) in groundwater.
Project Name: Rail Yard Lofts Project, Denver, Colorado
Date Project Began: January 2005
Date Project Completed: July 2005
Type of Project: Casey Resources, Inc. (CRI) prepared and submitted a Voluntary Cleanup Plan to the Colorado Department of Public Health and Environment (CDPHE) for the remediation of a former plating shop site. The end use for the site was the construction of 35 luxury loft units. CRI negotiated cleanup and sampling locations with the CDPHE and remediated lead contaminated soils at the property to meet the non-restricted/residential landuse standard for lead.
Type of Contamination: Chromium, lead, and asbestos contaminated material.
Project Name: Gold Hill Mesa Development, Colorado Springs, Colorado
Date Project Began: March 1999
Date Project Completed: Ongoing
Type of Project: Paul Casey, P.E., Principal of Casey Resources, Inc. (CRI) prepared and negotiated the Voluntary Cleanup Plan Application for the Gold Hill Mesa Site redevelopment in Colorado Springs with the Colorado Department of Public Health and Environment (CDPHE). The Voluntary Cleanup Plan Application identified remedial actions including the placement of an environmental cap on a 220 acre precious metal ore processing and refining tailings pile, with the final end-use of mixed use residential and commercial development. Mr. Casey made public presentations to Colorado Springs planning and city council for the development plan approval. Currently CRI is the Owner's Representative and Environmental Project Manager for the horizontal site development. CRI is currently managing all environmental related activities including, onsite tailings management, perimeter and onsite worker air monitoring, worker health and safety, and certification of environmental cap placement.
Type of Contamination: Tailings containing primarily lead and arsenic.
Project Name: Tailings Pile and Mill Site Closure, Creede, Colorado
Date Project Began: September 2004
Date Project Completed: Ongoing
Type of Project: Casey Resources, Inc. (CRI) is currently completing environmental assessments and preparing Voluntary Cleanup Plans for the closure of a former flotation mill site, a 42 acre tailings impoundment, and approximately 100 acres of floodplain property containing mining related debris in Creede, Colorado. Cleanup planning includes commercial and open space end use scenarios.
Type of Contamination: Mine tailings and related wastes containing heavy metal impacts, primarily arsenic, cadmium, lead, and zinc.
Project Name: Roscoe Development Corporation Property, Boulder, Colorado
Date Project Began: June 2005
Date Project Completed: Completed November 2005
Type of Project: Casey Resources, Inc. (CRI) performed limited subsurface investigations at a property in Boulder, Colorado to assess the potential of onsite volatile organic compound (VOC) sources. This investigation concluded that no VOC sources existed onsite and that VOC contamination was emanating from an offsite upgradient source. A Petition for No Action Determination was submitted to and approved by the Colorado Department of Public Health and Environment (CDPHE).
Type of Contamination: VOC impacted groundwater.
Project Name: Brighton Flats Development Project, Denver, Colorado
Date Project Began: April 2005
Date Project Completed: July 2005
Type of Project: Casey Resources, Inc. (CRI) completed an environmental site assessment in support of a Voluntary Cleanup Plan Application for the development of a two acre site in a former industrial area in Northeast Denver, Colorado. The results of the investigations indicated that the site's primary environmental problem was the existence of 10 to 20 feet of landfill debris containing a large volume of organic materials (grass and hay), which based on in-situ testing was generating significant levels of methane gas. CRI recommended the building architects incorporate environmental remediation aspects of construction into site planning such as foundation venting and proper management of water and excavated soils during construction. Based on the investigation findings, the building plans were modified not to include underground parking, but to construct slab on grade structures with methane venting systems. CRI provided methane venting system drawings as well as installation costs. CRI recommended the client consider development of a Voluntary Cleanup Plan Application should the proposed development include significant soil handling or removal.
Type of Contamination: Volatile Organic Compounds (VOCs), polynuclear aromatic hydrocarbons (PAHs), and metals contaminated soils and VOC impacted groundwater. Landfill deposits generating methane.
Project Name: Former Anderson Formal Wear Site, Commerce City, Colorado
Date Project Began: September 2001
Date Project Completed: February 2005
Type of Project: Mr. Terry McGowan of Casey Resources, Inc. (CRI) was the principal investigator for the Former Anderson Formal Wear Site in Commerce City, Colorado. This facility was the distribution center for the formal wear and also included a dry cleaning operation. Mr. McGowan designed and completed several site investigations to identify the source area of contamination and the extent of groundwater impact. Anderson's consultant proposed a soil vapor extraction system for remediation of the property, which was not accepted by the owner of the property. Mr. McGowan and Mr. Casey prepared an Integrated Corrective Action Plan (ICAP) for remediation of the site and also provided expert witness testimony as part of the legal issues associated with the property. Mr. McGowan managed the implementation of the ICAP which included the excavation of tetrachloroethene (PCE) impacted soil from beneath and in front of the building, and the removal of approximately 20,000 gallons of PCE impacted groundwater. Groundwater monitoring continued for one year on a quarterly basis with the final results showing that all offsite monitoring wells contained PCE concentrations below or just above the groundwater standard for PCE. Mr. McGowan negotiated with the Colorado Department of Public Health and Environment (CDPHE) to obtain an Environmental Covenant for the property which limited any use of groundwater, and released the owner from continued groundwater monitoring.
Type of Contamination: PCE contaminated soil and groundwater.
Project Name: Former Rainbow Cleaners, Northview Shopping Center, Westminster, Colorado
Date Project Began: September 2005
Date Project Completed: Ongoing
Type of Project: Casey Resources, Inc. (CRI) completed environmental investigations at a former dry cleaner operation and identified significant tetrachloroethene (PCE) impact in bedrock and groundwater. The information was summarized in an Integrated Corrective Action Plan (ICAP) which was submitted to and approved by the Colorado Department of Public Health and Environment (CDPHE). The ICAP remediation was implemented with the removal of indoor soils to approximately five feet below the floor surface and installation of a passive vapor venting system. As part of the indoor remediation, CRI was requested to provide environmental monitoring and oversight during building sanitary sewer pipeline replacement and to conduct 8-hour indoor air monitoring to assess air quality in building areas adjacent the sewer line repairs. CDPHE correspondence and negotiations were an integral part of the monitoring of the sewer pipeline repair project. Following the completion of the indoor remediation, CRI prepared an amendment to the ICAP which stated that outdoor excavation would be replaced with in-situ chemical oxidation at known source locations. CRI negotiated with the Colorado Department of Public Health and Environment (CDPHE) to complete the in-situ work and complete one year of groundwater monitoring. On completion of the groundwater monitoring, CDPHE and CRI will evaluate whether an Environmental Covenant for the property is necessary.
Type of Contamination: PCE contaminated soil and groundwater.
Project Name: Former Isaac Walton Gun Club Site, Colorado Springs, Colorado
Date Project Began: April 2005
Date Project Completed: December 2006
Type of Project: Casey Resources, Inc. (CRI) completed a detailed site assessment of a former shooting range and submitted a Voluntary Cleanup Plan Application on behalf of its client to remediate the property to residential standards as the proposed end use was residential single family homes and an associated commercial development. CRI completed bench scale testing of lead impacted soil and used this information to develop a remediation plan to neutralize the lead containing soils rendering them non-hazardous. The client's contractors completed the amendment of lead impacted soils and used the amended soils as backfill in the commercial area of the project. Deed restrictions were developed for the re-use site and a Construction Completion Report submitted to the Colorado Department of Public Health and Environment (CDPHE). CRI also assisted in negotiation with regard to a CDPHE Compliance Advisory issued to the contractors regarding hazardous waste regulations.
Type of Contamination: Lead and polynuclear aromatic hydrocarbon (PAH) contaminated soils.
Project Name: Kane Ranch Environmental Investigations, Fountain, Colorado
Date Project Began: June 2006
Date Project Completed: Ongoing
Type of Project: The Kane Ranch operated as a cattle ranch and commercial feedlot beginning in the early 1900s. The early ranching operations included control of disease and parasites by using arsenic compounds and pesticides directly applied to the cattle via a "dipping vat" (a long seven foot deep trench filled with these liquid compounds in which cattle were walked through). In addition, ranch activities included fueling of generators and ranching equipment using above ground and underground storage tanks. Site investigations by others identified organochlorine pesticide impacts to soil and petroleum hydrocarbon impacts to soil and groundwater. Casey
Resources, Inc. (CRI) implemented field investigations to define the areal extent and depth of both soil and groundwater contamination. The field investigations included the drilling of soil borings, installation of monitoring wells, and collection of surface soil, surface water, and subsurface soil samples. Based on these investigations, CRI established the following: 1) petroleum and organochlorine pesticides had not impacted the adjacent Williams Creek, 2) the organochlorine pesticide impact was limited in depth and areal extent and could be managed (remediated) onsite, and 3) the petroleum hydrocarbon impact was naturally degrading with time. Based on these data, CRI recommended to our client to proceed with a Voluntary Cleanup Plan Application and negotiations with the Colorado Department of Public Health and Environment (CDPHE) to remediate the property. The Voluntary Cleanup Plan Application was submitted to the CDPHE and outlined the capping of organochlorine pesticide soils and monitoring of the petroleum impact to show that the impact is naturally degrading. On approval of the Application, CRI will implement the remediation of the impacted soils.
Type of Contamination: Organochlorine pesticide impacted soil and petroleum hydrocarbon impacted soil and groundwater.
Project Name: Review Environmental Information for Nine Gasoline Stations, Colorado
Date Project Began: October 2005
Date Project Completed: October 2005
Type of Project: Casey Resources, Inc. (CRI) was requested by Dunton Realty to review the available information for nine gasoline stations located in Colorado and to report our findings in less than four days in order to meet a purchase deadline. Based on the information provided and research conducted at the Colorado Department of Labor and Employment (CDLE), Division of Oil and Public Safety (OPS), CRI prepared property assessment reports for each of the nine gasoline stations and ranked each of the properties based on the potential of environmental remediation and the estimated cost to complete remediation. Based on the reports provided, Dunton advised its client on which properties could be purchased as is and those for which a reduced price could be negotiated.
Type of Contamination: Petroleum hydrocarbon impacted soil and groundwater.
Phase I Environmental Site Assessments - Casey Resources, Inc. (CRI) personnel have completed Phase I Environmental Site Assessments (ESAs) for a number of properties in Colorado. These have included the Western Tier Parcel at the Rocky Mountain Arsenal (RMA), two large (1,000 and 2,500 acre) ranches in Douglas County, commercial building properties in Boulder, and active and former industrial sites in Englewood.
