▁flo od plain ▁is ▁a ▁more ▁significant ▁environmental ▁concern . ▁ ▁Spring ▁Brook ▁is ▁the ▁main ▁source ▁of ▁flo oding ▁in ▁Spring ▁Brook ▁Township , ▁L ack aw anna ▁County . ▁ ▁History ▁and ▁indust ries ▁Spring ▁Brook ▁was ▁entered ▁into ▁the ▁Geographic ▁Names ▁Information ▁System ▁on ▁August ▁ 2 , ▁ 1 9 7 9 . ▁Its ▁identifier ▁in ▁the ▁Geographic ▁Names ▁Information ▁System ▁is ▁ 1 1 8 8 2 0 6 . ▁ ▁Spring ▁Brook ▁provided ▁power ▁for ▁early ▁l umber ing ▁in ▁Spring ▁Brook ▁Township , ▁L ack aw anna ▁County . ▁In ▁the ▁early ▁ 1 9 0 0 s , ▁the ▁main ▁indust ries ▁in ▁the ▁waters hed ▁of ▁Spring ▁Brook ▁included ▁coal ▁min ing ▁and ▁agricult ure . ▁The ▁Pennsylvania ▁Co al ▁Company ▁histor ically ▁had ▁a ▁was h ery ▁that ▁dis charg ed ▁into ▁the ▁stream . ▁The ▁Du ▁Pont ▁Pow der ▁Company ▁also ▁operated ▁in ▁the ▁waters hed ▁at ▁that ▁time . ▁A ▁rail road ▁line ▁along ▁the ▁stream ▁was ▁present ▁by ▁the ▁ 1 8 8 0 s . ▁The ▁Wil kes - Bar re ▁and ▁Eastern ▁Rail road ▁also ▁crossed ▁the ▁stream ' s ▁waters hed ▁and ▁the ▁Sc r anton ▁and ▁Spring ▁Brook ▁Rail road ▁followed ▁the ▁stream ▁between ▁Rock dale ▁and ▁its ▁mouth . ▁During ▁this ▁time ▁period , ▁major ▁communities ▁in ▁the ▁waters hed ▁included ▁Mo os ic , ▁which ▁had ▁a ▁population ▁of ▁ 3 9 6 4 ▁at ▁the ▁time . ▁The ▁main ▁stem ▁and ▁several ▁trib