D.3.0 BASELINE RISK
The baseline risk is the existing risk at any location at different times in the future in the absence of remedial activities. It would be represented by the risk from the 177 tanks , 40 inactive MUSTs, and Cs and Sr capsules at the Hanford Site if no further actions were conducted to stabilize the waste. For NEPA purposes, the baseline risk is risk from the No Action alternative.
The No Action alternative was used to approximate the baseline. The No Action alternative would involve several activities including the following.
- The SSTs would be saltwell pumped.
- Monitoring and routine maintenance would be performed.
Section s D.4.1 and D.4.11 discuss the short-term risk for the tank waste No Action alternative and capsules No Action alternative, respectively. Sections D.5.1 and D.5.11 discuss the long-term risk for the tank waste No Action alternative and the capsules No Action alternative, respectively. Section D.7.0 discusses the risk from human intrusion into the tank waste and capsules under the No Action alternatives .
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