$1,2,3-$trichloropropane $($TCP$)$ is a pollutant that is currently being considered for regulation in drinking water. The slope factor for TCP has been determined to be $7kg*\frac{d}{m}g.$

a$.$ What concentration of TCP will result in a risk of ${10}^{-6}$ assuming a $70kg$ person drinks $2\mathrm{.}3$ L of water per day, every day, over $60$ years? Assume all the exposure to TCP comes from the drinking water. Report your answer in units of $\frac{g}{L}.$

b$.$ The probability of experiencing an adverse health outcome following exposure to TCP is described in the dose$-$response figure below. Based on this information, do you expect that TCP is a carcinogen? Why or why not?

c$.1$c$.$ Are your answers for $1$a and $1b$ consistent with how you've defined the contaminant $($i$.$e$.,$ as a non$-$carcinogen or carcinogen$)?$ If not, what information is needed to correct this inconsistency?