- Few Southeast students face suspension, expulsion for sexual assaults, campus paper finds (4/25/17)6
- Perryville family organizing bone-marrow drive Friday for ailing 6-year-old boy (4/26/17)
- Woman battered after smashing boyfriend's meth pipe against wall, police say (4/25/17)1
- Temptations bassist dies after Cape Girardeau show (4/26/17)2
- Event includes the first public tour of 200-year-old Elmwood Manor (4/23/17)3
- BBB warns Jackson man's online business might not be legit (4/24/17)
- Pilot House goes smoke-free (4/23/17)10
- State Supreme Court rules against congressman's mother in dog-kennel defamation case (4/27/17)1
- Strattman to step down as principal at St. Mary (4/28/17)1
- Cape couple turns their home into cozy, comfortable music venue (4/24/17)
Reservoir needs overflow spillway
To the editor:
Why does the upper reservoir at the Taum Sauk power plant no have an overflow spillway? Nobody seems to have noticed that an overflow spillway on the upper reservoir would be an effective safety feature that would protect the power-generating station and the neighbors from a spillover caused by pumps that were supposed to shut off but did not do so when the upper reservoir was already full.
Electric company computers can be hacked or sabotaged and made inoperative. Water-level sensors can break. Data transmission from the sensor to the central computer can be lost. The central computer's signal to stop pumping may not arrive or be acted upon by the pumps. But gravity always works. With an upper reservoir overflow spillway in place, some electricity would be wasted as overflowing pumped water flowed back downhill, but catastrophic failure of the reservoir and downstream damage would not happen. The cost of installing a spillway system is far less than the cost of damage repair.
A spillway is designed to handle overflow. A reservoir wall is not. Water pouring over the reservoir wall weakened the materials supporting the wall and led to wall collapse and catastrophic failure of the reservoir.
The Taum Sauk pumpback power plant should be returned to operation, but with a fail-safe, gravity-powered, overflow spillway installed at the upper reservoir.
WILLIAM JUD, Fredericktown, Mo.