Point Source projects
Point Source provided a site characterization on a golf course proposed for redevelopment as a retail center.
The site characterization indicated elevated levels of organochlorine pesticides including chlordane and dieldrin present in soils specifically found on and beneath the former greens. This required that site be entered into the Washington Department of Ecology Voluntary Cleanup Program. Point Source, in turn, planned and coordinated the removal and disposal of the pesticide impacted soils. At the end of the clean-up, WA DOE closed the location as a Method “A” Unrestricted Land Use site.
Type of Project:
Site Characterization and Cleanup
Type of Site:
Golf Course
Outcome:
Regulatory Closure by Washington Department of Ecology
Type of Project:
Environmental Due Diligence
Type of Site:
Active dry cleaner
Outcome:
Regulatory Closure by Washington Department of Ecology
As part of an environmental due diligence assessment for a real estate transaction, Point Source performed an investigation of an active dry cleaner site.
The dry cleaner began operations on the property in the 1960s. This investigation revealed evidence of historic dumping of dry cleaner solvents into a catch basin that was connected to an on-site drywell.
Type of Project:
Environmental Clean-up
Type of Site:
Urban redevelopment
Outcome:
Regulatory Closure by Washington Department of Ecology
Point Source provided consulting and management for environmental cleanup of property in downtown Vancouver, WA that was slated for construction of Vancouver Community Library. The library, the main branch of Fort Vancouver Regional Library District, opened in 2011 to much fanfare.
Point Source was retained to evaluate environmental conditions on a large property along North Portland Harbor as part of a property re-finance.
Petroleum products and polychlorinated biphenyls were identified during several investigations beginning in the 1980s. Point Source conducted extensive upland and in-water investigation including the collection of sediment cores near stormwater outfalls.
Our team laid out a grid on the river bottom as a guide for a diver who collected sediment cores. Detailed statistical analysis and site-specific risk-based evaluation resulted in a “No Further Action” determination by Oregon DEQ for the upland portions of the site. Plans are under development to address the area-wide sediment impact, as the various sources of that impact have not been determined.
Type of Project:
Environmental Evaluation
Type of Site:
River Upland and In-water
Outcome:
"No Further Action" Determination
Point Source performed a hydrogeologic review of a proposed development in a rural corner of Clackamas County. Certain land divisions and developments proposing exempt-use wells outside the urban growth boundary are required to do this review. Aquifers of concern were the Troutdale Formation and the underlying Columbia River Basalt Group, which requires that the development application include evidence of long-term sustainability of groundwater resources.
The review confirmed that the aquifer could sustain the proposed development with potable water and that proposed development was unlikely to unreasonably interfere with existing wells, groundwater rights, and/or surface water rights. The review also established that the development would not likely contribute to overdraft of the aquifer.
Type of Project:
Hydrogeologic Review
Type of Site:
Development of Rural Land
Outcome:
Evidence of Long-term Sustainability Accepted
Point Source investigated a former service station site in Woodburn, Oregon. Although underground storage tanks were removed during the 1970s, significant residual contamination was identified in soil and groundwater.
Point Source installed several monitoring wells on the property in addition to an extraction well and a groundwater pump and treat system. The system has significantly reduced contaminant concentrations in the groundwater. Point Source continues to evaluate site conditions and to further treatment while working with Oregon DEQ in pursuit of regulatory closure.
Type of Project:
Underground Storage Tank Clean Up
Type of Site:
Former Service Station
Outcome:
Ongoing Reduction in Groundwater Contaminant Concentrations and
Pursuit of Regulatory Closure
Point Source provided environmental consulting services for the iconic “Goat Blocks” located in Portland’s Central Eastside district.
This two-block property historically housed a produce distribution center operated by the Gardeners and Ranchers Association. Point Source led extensive environmental work at the site.
Type of Project:
Environmental Clean-up Management
Type of Site:
Urban Redevelopment
Outcome:
"No Further Action" Designation
Point Source provided environmental consulting for property in North Portland that once was home to Arlee Pest Control. Contamination by legacy pesticides resulted from activities related to a fumigation chamber. Initial sampling indicated soil would require disposal as a hazardous waste.
To ensure the waste was removed completely, Point Source developed a grid system for excavating and segregating soil. The team also prepared a risk-based corrective action report for the release. In response, Oregon Department of Environmental Quality issued a designation of "No Further Action." The property since has been redeveloped for a health care provider.
