QUESTION $37$

While looking at discharge $001$ pond with a technician, he informs you that the water $pH$ is $9\mathrm{.}7,$ which is too high, and the pond will have to be treated with chemicals to lower the $pH$ before it can be discharged. What are the $pH$ effluent discharge limitations for our facility to be in compliance?

$1.$ between $6\mathrm{.}0$ and $9\mathrm{.}0$

$2.$ less than $7\mathrm{.}0$

$3.$ greater than $6\mathrm{.}0$

$4\mathrm{.}3\mathrm{.}5$ maximum for any $7-$day period

$5\mathrm{.}3\mathrm{.}1416$