Document 4JwK3zVy8JNnD9GJbZx3Bkd1Q

Risk Comparison I iwwi pa# te M Sierra Club v. EPA 18cv3472 NDCA Tier 1 ED 002061 00094894-00001 Compounded Conservatism Everyone has all of the following characteristics: P a ra m e te r National Default Value Proposal for W ashington W eighs... 80kg (176 lbs) Same Proposal for Maine (Indian Lands) Same 2 4 L.-da-/ -2 6 gu a n s- Every Day for 70 Years Drinks W ater From the Same Location T hat is.... U n filte re d a n d U n treated a n d *From Surface W ater (lakes, streams, etc.) and Same Contammat^ci at She h h \ \ O C l..e\e! 22 g-dsy i.8 oz; AND Every Day for 70 Years Consum es Fish From the Sam e Location T h a t Is ... From Local W aters, G rocery -Stores, Aquaculture, Foreign Countries (excluding marine) ana From W aters Contam inated at the HHWQC Level and Fish are Contam inated with Pollutants from the W ater to the Maximum Extent Possible Same Except Same Except 286 (.63 lbs) 175 (.39 lbs) (a rate unsuppressed by availability or safety concerns) Sierra Club v. EPA 18cv3472 NDCA Tier 1 ED 002061 00094894-00002 Policy Issues Impact of EPA Choosing 10~6 v. 10~5 v. 10~4 Excess Lifetime Cancer Risk Level "10-6 means the "risk of developing cancer...would be one in a million on top of the background risk of developing cancer from all other exposures." (emphasis added)* If Everyone has ALL of the Equation Characteristics: 4 in 10. or .40000 .4001 .40001 * EPA Proposed Criteria for Maine, 81 Fed. Reg. 23243 (4/20/16) .400001 Awseiesn I Porwt Paflsr A **w S*M#b Sierra Club v. EPA 18cv3472 NDCA Tier 1 ED 002061 00094894-00003