Human Health Risk Assessment. The human health risk assessment (HHRA) may be performed to provide a quantitative assessment of the potential for adverse health effects that may result from exposure to chemicals of potential concern (COPCs) at the site. Appropriate HHRA guidance and criteria will be determined on a site-by-site basis in the SSWPs and may include the following: ■ Risk Assessment Guidance for Superfund (RAGS), Volume 1 - Human Health Evaluation Manual, Part A, Interim Final, EPA 540/1 89/002, USEPA, December 1989; ■ Risk Assessment Guidance for Superfund (RAGS), Volume 1 - Human Health Evaluation Manual, Part D, (Standardized Planning, Reporting, and Review of Superfund Risk Assessments), Final, USEPA, December 2001; ■ Risk Assessment Guidance for Superfund (RAGS), Volume 1 - Human Health Evaluation Manual, Part E, (Supplemental Guidance for Dermal Risk Assessment), EPA/540/R/99/005, USEPA Office of Emergency and Remedial Response, Washington, D.C., July 2004; ■ Exposure Factors Handbook Volume I – General Factors, USEPA, Office of Research and Development, 1997; ■ Exposure Factors Handbook Volume III – Activity Factors, USEPA, Office of Research and Development, 1997; ■ Region 9 Preliminary Remediation Goals, USEPA Region 9, October 2004; ■ Memorandum from Administrator Xxxxx X. Xxxxxxx to Assistant Administrators, Associate Administrators, Regional Administrators, General Counsel and Inspector General on March 21, 1995, EPA Risk Characterization Program, USEPA Office of the Administrator, Washington, D.C., March 21, 1995; ■ Calculating Upper Confidence Limits for Exposure Point Concentrations at Hazardous Waste Sites, OSWER 9285.6 10, USEPA, Office of Emergency and Remedial Response, Washington, D.C., December 2002; ■ WDNR Environmental Protection, Investigation and Remediation of Environmental Contamination, W.A.C. Chapter NR 720, Soil Cleanup Standards, January 2001; ■ WDNR W.A.C. Environmental Protection, General, Chapter NR 140, Groundwater Quality, February 2004; ■ Chapter 35 of the Illinois Administrative Code (IAC), Part 620: Groundwater Quality, February 2002; and ■ 35 IAC; Subtitle G: Waste Disposal; Chapter I: Pollution Control Board; Subchapter f: Risk Based Cleanup Objectives; Part 742: Tiered Approach to Corrective Action Objectives, February 2007.
Human Health Risk Assessment. A detailed HHRA report will be prepared based on the findings and inputs from aforementioned tasks. It will follow the standard risk assessment paradigm of problem formulation, exposure assessment, hazard assessment and risk characterization. At this stage in the proposal preparation, it is very difficult and likely premature to detail the exact approach to be undertaken to understand what potential health risks exist for residents and First Nations in northeast BC living in proximity to oil and gas activities. Instead a framework and proposed approach is provided which will be honed in consultation with the Intrinsik Advisory Panel, MOH and other government representatives, and key stakeholders upon completion of Task 4. It would be impossible to conduct an absolutely comprehensive quantitative risk assessment of all oil and gas activities, their chemical emissions and resulting risks to people living in such a large geographic area given the budgetary and time constraints. That is not to say that the Intrinsik Team believes that such an undertaking is without merit. In fact, we believe there are a number of generic oil and gas activity scenarios that exist that could be modelled to provide an estimation of potential risk surrounding their operation. This is an approach that has been adopted previously across Canada for a number of industries (e.g., waste‐to‐energy facilities and natural gas‐fired plants) in an attempt to identify those areas that require individual facility assessment or development of comprehensive monitoring or mitigation programs to ensure the ongoing protection of individuals’ health. In addition, it is critical to remember that very valuable qualitative information on activities that could pose an adverse health threat will be identified in Task 4. Based on the budget and our understanding of the scope and objectives, the Intrinisk Team envisions quantitative evaluation of one large/complex emission source, one medium and two small/simple oil and gas activities. For the purpose of the budget these have largely been envisioned to involve air releases of contaminants in the environment, ground‐level air concentrations being predicted, potential deposition in soil, and uptake into edible vegetation and wild game/livestock, where appropriate. Human receptor scenarios likely involving urban, rural and First Nations land use activity patterns would be assessed. Quantification of potential health risk using readily‐available chemical‐speci...
Human Health Risk Assessment. Provide support to the Department to determine risks posed by contaminants at the site to humans. Evaluate the studies, analysis, models and comments on the Human Health Risk provided by the PRPs and USEPA and prepare a response to address the issues/comments. Task 108 PROJECT COST: Provide and maintain current itemized construction cost(s) estimates and expenditures for each Task of each respective Phase. In addition to remediation costs, such costs shall include, and specifically identify, all professional, testing, construction, and remediation costs, as well as any costs to maintain the State/Client Agency facility operations. Project cost analysis shall consider funding sources availability, and all steps of the Project Budget and appropriation processes and similar allocation processes affecting funding availability. Such availability shall be compared to projected cash flows. Where any cost is projected to occur over more than one (1) fiscal year, the estimate shall reflect annual costs. Task 109 PROJECT SCHEDULE: Provide and submit for the Department’s acceptance, and maintain current for the Project, a schedule for the events of Tasks 104, 105, 106, and 107. The schedule format will be prescribed by the Department. This schedule shall include the procedural steps of Project Budget submittal, legislative appropriation, and the allocation and release of funds. Project schedules shall be in total compliance with the requirements of any court order(s), consent agreement(s) or other governing directive(s). Prescribed, agreed upon, or historically reasonable schedule times shall be included for reviews and approvals by the governing enforcing agency and for budgetary processes. Such schedules shall be provided in undated unit time durations (day(s), week(s), month(s), etc.) Project schedule dates will be incorporated when approvals or other written orders to proceed become known. Adherence by the Professional, to the Project's accepted schedule time/duration is a condition for satisfactory performance of this Contract. Task 110 PROJECT STUDY REPORTS: Submit weekly written reports for the work of Tasks 103, 104, 106, and 107 (or as the Department may require) which briefly summarize the on-site field investigation activities, findings, significant decisions, and accomplishment of the preceding period. These reports shall transmit and summarize the findings of the on-site field investigation reports of the Phase 700 Project Tasks. Give notice of identifie...
