1 



^1 



Fig. 5. Major construction and operation events at MNPS lasting longer than 2 weeks: a) number or units operating; b) 

 periods of coffer dam construction and removal; c) presence of coffer dams at Unit 2, then Unit 3 intakes; d) second quarry 

 cut open; e) presence of fish barriers at quarry cul(s); f) presence of fish return system at Unit 1 intake; g) periods when a 

 surface boom was present at Unit I intake; h) periods when a surface boom was present at Unit 2 intake; i) period when 

 a bottom boom was present at Unit 1 intake. 



