Actually, Coop has come up almost 7 feet in the past week and the forecast is for even more flooding run-off. It was 4.1 feet into flood stage 48 hours ago and was almost 3 feet below pool when all the torrential rain started on the watershed in the past week...
Here's the official website with current elevation data:
https://waterdatafortexas.org/reservoirs/individual/jim-chapmanBased on my past experience at Coop I would guess most areas are extremely muddy to stained and water quality will become even worse when they start releasing and pulling large volumes of water downstream into Wright Patman.
More flooding rainfall is predicted for Lake Cooper and surrounding area for several more days...here is the latest advisory as of 7:15 A.M. this morning August 17th.
* Flood Advisory for...
Hunt County in north central Texas...
* Until 1015 AM CDT.
* At 715 AM CDT, Doppler radar indicated thunderstorms that were
producing heavy rainfall across portions of Kaufman County across
locations that received one to two inches of rainfall from earlier
activity. Excessive runoff from these thunderstorms will cause
urban and small stream flooding. Areas that are low lying or
usually experience poor drainage are most likely to experience
flooding. This means some low water crossings in the region may
become impassable.
* Some locations that will experience flooding include...
Greenville, Commerce, West Tawakoni, Wolfe City, Quinlan, Caddo
Mills, Celeste, Campbell, Hawk Cove, Josephine, Lone Oak and
Neylandville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.