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RMEA has conducted site investigations and remedial cleanups at numerous sites throughout the region, and our staff has conducted such work nationwide. A Phase III is an additional phase of site investigation focused on identifying remedial measures, and/or the implementation of actual site remediation. We keep abreast of the latest technologies to efficiently conduct these projects. Our close working relationships with regional regulatory staff, and mutual trust built over years of project work, allows for expedited outcomes and efficient progress through the regulatory process to attain formal closure. Our successful projects have included leaking underground storage tank (LUST) sites, hazardous materials sites, spill cleanups, and farm dump cleanups. We utilize the latest Risk Assessment techniques to make sure that remediation is conducted only when necessary, and only to the degree necessary to achieve closure, while protecting human health and the environment.
RMEA has conducted site investigations and remedial cleanups at numerous sites throughout the region, and our staff has conducted such work nationwide. A Phase III is an additional phase of site investigation focused on identifying remedial measures, and/or the implementation of actual site remediation. We keep abreast of the latest technologies to efficiently conduct these projects. Our close working relationships with regional regulatory staff, and mutual trust built over years of project work, allows for expedited outcomes and efficient progress through the regulatory process to attain formal closure. Our successful projects have included leaking underground storage tank (LUST) sites, hazardous materials sites, spill cleanups, and farm dump cleanups. We utilize the latest Risk Assessment techniques to make sure that remediation is conducted only when necessary, and only to the degree necessary to achieve closure, while protecting human health and the environment.
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Site Investigations and Remediation |
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What are Phase II and Phase III Environmental Site Assessments ?
 A Phase II Environmental Site Assessment —is an "intrusive" investigation which collects original samples of soil, groundwater or building materials to analyze for quantitative values of various contaminants. This investigation is normally undertaken when a Phase I ESA determines a likelihood of site contamination. The most frequent substances tested are petroleum hydrocarbons, heavy metals, pesticides, solvents, asbestos and mold.
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Excavating illegal dump site |
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Excavating pesticide containers |
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Staging containers for disposal pickup |
Phase III Environmental Site Assessment —is an investigation involving remediation of a site. Phase III investigations aim to delineate the physical extent of contamination based on recommendations made in Phase II assessments. Phase III investigations may involve intensive testing, sampling, and monitoring, "fate and transport" studies and other modeling, and the design of feasibility studies for remediation and remedial plans. This study normally involves assessment of alternative cleanup methods, costs and logistics. The associated reportage details the steps taken to perform site cleanup and the follow-up monitoring for residual contaminants.
Source: Wikipedia, the free encyclopedia Wikimedia Foundation, Inc.
Vac'ing backfill, below grade tank vault |
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Excavating pesticide contaminated soil |
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Read the long caption, it's worth it |
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Environmental remediation — is the removal of pollution or contaminants from environmental media such as soil, groundwater, sediment, or surface water for the general protection of human health and the environment or from a brownfield site intended for redevelopment. Remediation is generally subject to an array of regulatory requirements, and also can be based on assessments of human health and ecological risks where no legislated standards exist or where standards are advisory.
Source: Wikipedia, the free encyclopedia Wikimedia Foundation, Inc.
Remediation technologies are many and varied but can be categorized into ex-situ and in-situ methods. Ex-situ methods involve excavation of impacted soils and subsequent disposal or treatment at the surface, whereas In-situ methods seek to treat the contamination "in-place", without removing soils or groundwater.
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Experience Counts.
Example Phase II and III Projects
Teton River Meanders Ranch Fuel Spill Investigation and Cleanup, Victor, Idaho
This project involved an expedited investigation and cleanup associated with a fuel spill from an above ground storage tank (AST) on a ranch property involved in a real estate transaction. Groundwater occurred at a shallow depth in the area, and several drinking water wells and sensitive environmental receptors, including the Teton River, were nearby. RMEA directed the removal of a large quantity of contaminated soil, including underneath a large shop building. Excavation beneath the building required that the foundation be supported by a series of drilled helical piers. Groundwater was remediated via an air sparging system utilizing two horizontal recovery wells.
Valley Wide LUST site, Rexburg, Idaho
This project included the investigation of an extensive groundwater plume that extended from the site across a busy multi-lane roadway through the center of the town of Rexburg, and onto adjacent properties. Remedial actions have included soil removal, and injection of oxygen-release compound to stimulate bio-degradation of adsorbed and dissolved hydrocarbons. The site is currently in post-remediation monitoring.
Driggs, Idaho Airport Pesticide Release Cleanup
RMEA worked with the City of Driggs to cleanup a former aerial applicator site at the city airport. The site contained empty drums and piping, wood, plastics, soils and asphalt, all contaminated with various pesticides. The key contaminants of concern were disulfaton, malathion, and endosulfan. The cleanup strategy reflected an agreement with the state regulatory agency (IDEQ) that soils containing agricultural pesticides were not wastes, but were product that could be applied to ag land at agronomic rates. Drums and piping were decontaminated and disposed of as solid waste. Contaminated wood and asphalt were stockpiled pending characterization, and later transported and treated at a RCRA treatment facility, and disposed of at a Subtitle C landfill, in accordance with RCRA land disposal restriction requirements. Contaminated soils were excavated to risk-based cleanup levels and stockpiled, and, after characterization, were land-applied at agronomic rates.
Remediation of gasoline contaminated soil and groundwater, Roberts, Idaho
RMEA worked with the City of Roberts to remediate a large area of petroleum contaminated soil and groundwater from leaking USTs at a local gasoline station. An accelerated site characterization was completed using a Geoprobe and on site gas chromatograph. Cleanup included soil excavation, air sparging, and soil vapor extraction. Off gasses were treated using a Cat-Ox unit. Project funding was obtained from State and Federal agencies.
Other RMEA Site Investigation and Remediation Projects
 | Ball Ventures; Idaho Falls, Idaho |
| | Blue Bell Corporation; Rigby, Caldwell, Idaho |
| | Cheese Factory investigation and remediation; Salmon, Idaho |
| | D and L Cleaners; Idaho Falls, Idaho |
| | Driggs Airport pesticide recommendation; Driggs, Idaho |
| | Farm Dump investigation and cleanup; Ashton, Idaho |
| | Farm Dump investigation and cleanup; Thornton, Idaho |
| | Former Parker Landfill investigation and cleanup; Saint Anthony, Idaho |
| | Former Phillips 66 station investigation and remediation; Shelley, Idaho |
| | Horkley's Gas Station investigation and remediation; Rexburg, Idaho |
| | Investigation, Risk Assessment, and Cleanup of Pesticide Contaminated Soils, former Fertilizer Distribution facility; Rexburg, Idaho |
| | Live Water properties farm dump; Thornton, Idaho |
| | LUST site investigation/remediation; Roberts, Idaho |
| | Magnesium Chloride (MgCl2) Spill; Island Park, Idaho |
| | Tanker Truck Spill; Tendoy, Idaho |
| | Texaco Station investigation and remediation; Ashton, Idaho |
| | The City of Idaho Falls; Idaho Falls, Idaho |
| | Valley Wide Corp. LUST site; Rexburg, Idaho |
| | Wright Oil bulk plant site investigation and risk assessment; Blackfoot, Idaho |
| | Zions Bank; Idaho Falls, Idaho |
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Many sites, most actually, are free of significant environmental concerns and no additional work is required. When additional work is needed, that work is focused solely on the specific condition/s identified in the Phase 1. The scope of a Phase 2 study is therefore site specific and varies widely. Phase 3 studies are remediation-focused investigations that follow a Phase 2.
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Rocky Mountain Environmental is a registered service mark of
Rocky Mountain Environmental Associates, Inc., 482 Constitution Way, Suite 303, Idaho Falls, Idaho 83402
VOICE: 208-524-2353 ||| FAX: 208-524-1795 |
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