ut aries ▁were ▁also ▁histor ically ▁used ▁as ▁a ▁water ▁supply ▁by ▁the ▁Spring ▁Brook ▁Water ▁Supp ly ▁Company . ▁The ▁stream ▁is ▁still ▁used ▁as ▁an ▁important ▁water ▁supply ▁in ▁the ▁L ack aw anna ▁Valley , ▁as ▁of ▁ 2 0 0 1 . ▁T ogether ▁with ▁Ro aring ▁Brook ▁and ▁Staff ord ▁M ead ow ▁Brook , ▁it ▁serves ▁as ▁a ▁water ▁supply ▁to ▁a ▁substantial ▁part ▁of ▁the ▁valley . ▁Some ▁areas ▁of ▁the ▁waters hed ▁have ▁been ▁subject ed ▁to ▁extensive ▁tim ber ing ▁programs ▁as ▁recently ▁as ▁ 2 0 0 1 . ▁The ▁N es b itt ▁Water ▁Fil tr ation ▁Plant ▁is ▁in ▁the ▁waters hed , ▁in ▁Pitt ston ▁Township , ▁Lu zer ne ▁County . ▁It ▁is ▁owned ▁by ▁the ▁Pennsylvania ▁American ▁Water ▁Company . ▁ ▁Spring ▁Brook ▁flo oded ▁during ▁H urr icane ▁D iane ▁in ▁ 1 9 5 5 , ▁reaching ▁a ▁dis charge ▁of ▁ ▁near ▁Mo os ic ▁and ▁destroy ing ▁three ▁homes ▁and ▁in und ating ▁the ▁bas ements ▁and ▁first ▁flo ors ▁of ▁many ▁others . ▁The ▁Pennsylvania ▁Department ▁of ▁Environment al ▁Prote ction ▁constructed ▁a ▁le vee ▁on ▁the ▁stream ▁after ▁this ▁flo oding ▁event . ▁The ▁stream ▁also ▁experienced ▁bank ▁failure ▁during ▁flo ods ▁in ▁October ▁ 1 9 8 5 ▁and ▁January ▁ 1 9 9 6 . ▁It ▁also ▁flo oded ▁homes ▁and ▁tra ilers ▁in ▁its ▁vic inity . ▁ ▁A ▁two - span ▁steel ▁string er / multi - be