Marty , I thought same thing about the $150,000.00 for a study.
Bet it could be done for $1,000.00 by using local volunteers. I'll put money people who live on the creek would do the sampling.
Many water troubles are due to low O2 levels - pumping O2 into the creek at bottom sure can not hurt any thing. They need $150,000.00 to prove this ?
Be great to see solar panels used to power the pumps.