Services
Risk Assessment
For Risk Assessment contact:
Description
OTO has extensive experience conducting risk assessments in accordance with the Massachusetts Contingency
Plan (MCP) and CERCLA (Superfund). We have four senior staff members whose work consists primarily of
risk characterization. Additional staff specializing in hydrogeology, environmental engineering, remediation
and air dispersion assist in risk characterization as needed. OTO strives to provide timely delivery of clear
and accurate reports that meet or exceed our clients’ expectations by integrating quality technical
analysis with sound and pragmatic project management.
OTO has prepared hundreds of risk characterizations for projects conducted under the MCP. The complexity
of these characterizations has ranged from simple Method 1 assessments covering residential fuel oil releases
to complex Method 3 assessments for large chemical manufacturing plants. OTO risk assessment staff regularly attends
technical meetings and training sessions sponsored by the Massachusetts Department of Environmental Protection and
the Licensed Site Professional Association to remain current with MCP regulations and guidance regarding
risk assessment. OTO offers risk-based options to clients, while working within the confines of the
applicable MCP regulations and guidance.
Our staff have worked on numerous federal Superfund sites. We are knowledgable about current
risk assessment procedures used by U.S. EPA, including RAGS Part D Standard Tables. Our firm
currently assists various municipalities and town committees in overseeing Superfund sites. For
the town of Acton, Massachusetts, we are consulting on the oversight of investigations conducted at the
W.R. Grace Superfund site. For a Watertown, Massachusetts, citizens group, we are consulting on the Watertown
Arsenal Superfund Site through an EPA-administered Technical Assistance Grant.
