▁ 2 0 2 4 ▁because ▁the ▁alternative ▁was ▁to ▁construct ▁U . S . ▁d ams ▁that ▁would ▁be ▁fully ▁paid ▁for ▁by ▁then . ▁ ▁Canada ▁accepted ▁the ▁calculation ▁method ▁and ▁explained ▁to ▁Parliament ▁that ▁the ▁$ 6 4 . 4   mill ion ▁is ▁ 2 4 % ▁greater ▁than ▁the ▁value ▁to ▁Canada ▁at ▁ 5 ½ % ▁interest ▁of ▁annual ▁pay ments ▁made ▁in ▁perpet u ity . ▁ ▁Ab sent ▁any ▁new ▁agre ements , ▁the ▁U . S . ▁purchase ▁of ▁an ▁annual ▁operation ▁of ▁Canadian ▁storage ▁for ▁flo od ▁control ▁will ▁exp ire ▁in ▁ 2 0 2 4 ▁and ▁be ▁replaced ▁with ▁an ▁option ▁for ▁the ▁U . S . ▁to ▁" Call ▁Upon " ▁Canadian ▁storage ▁for ▁flo od ▁control ▁needs ▁that ▁cannot ▁ade qu ately ▁be ▁met ▁by ▁U . S . ▁projects , ▁and ▁the ▁U . S . ▁must ▁pay ▁Canada ▁for ▁operating ▁costs ▁and ▁any ▁economic ▁losses ▁due ▁to ▁requested ▁flo od ▁control ▁operations . ▁ ▁Term ination ▁The ▁treat y ▁has ▁no ▁end ▁date , ▁but ▁it ▁includes ▁an ▁option ▁for ▁either ▁country ▁to ▁terminate ▁most ▁treat y ▁prov isions ▁any time ▁after ▁ 6 0 ▁years ▁( i . e . ▁ 1 6 ▁September ▁ 2 0 2 4 ), ▁given ▁at ▁least ▁ 1 0 ▁years ▁advance ▁notice . ▁If ▁the ▁treat y ▁is ▁terminated , ▁several ▁prov isions ▁continue ▁including ▁Cal led ▁Upon ▁flo od ▁control , ▁operation ▁and ▁coord ination ▁of ▁Lib by