Shoreline Cleanup and Assessment Technique (SCAT) Simple and comprehensive way to perform a survey of an affected shoreline Systematic approach using standardized terminology to collect data on shoreline oiling conditions Material Summarized from NOAA Shoreline Assessment Manual

A Shoreline Assessment Program Supports decision making for shoreline cleanup Flexible in terms of scale of the survey and detail of the data sets collected Multi-agency with trained representatives from all interested parties who have authority to make decisions Material Summarized from NOAA Shoreline Assessment Manual

SCAT Team Responsibilities Evaluate oiling conditions Factor in shoreline types Identify sensitive resources Determine need for cleanup Recommend cleanup methods and endpoints Place constraints on cleanup if necessary, due to ecological, economic, or cultural concerns Post-cleanup Inspections and Final sign-off of clean-up activities Material Summarized from NOAA Shoreline Assessment Manual

Key Considerations for Endpoints: (Riparian, Stream Banks, Man-made Structures) Is proposed shoreline segment safely accessible for cleanup? Is proposed endpoint practicably and technologically achievable? Will additional removal cause more damage than leaving the residual oil in place for natural weathering and biodegradation? Will remaining oil represent either an environmental hazard, historical/cultural property threat, or human use nuisance?

Proposed End-Points: (Riparian, Stream Banks, Man-made Structures) Remove and/or abate visible oil and or sheen affecting Yellowstone River Shorelines no longer release sheens that affect Yellowstone River Oil no longer rubs off on contact Oil removal to the point where recovery can occur without causing more harm than leaving the oil in place. Structure no longer generates liquid oil or sheen

Key Considerations for Endpoints: (Upland Areas) Areas that are traditionally safer to access Is proposed endpoint practicably and technologically achievable? Areas that may be less ecologically fragile

Proposed End-Points: (Upland Areas) Characterize and assess per MDEQ Guidance Remediate to meet the higher of background and/or soil, groundwater, and drinking water standards associated with the Montana RBCA Guidance for Petroleum releases