▁Mine ▁d rain age ▁is ▁pre val ent ▁in ▁the ▁United ▁States ▁state ▁of ▁Pennsylvania , ▁as ▁well ▁as ▁several ▁other ▁states ▁that ▁have ▁histor ically ▁had ▁large ▁min ing ▁indust ries . ▁In ▁Pennsylvania , ▁nearly ▁ ▁of ▁streams ▁have ▁been ▁affected ▁by ▁abandoned ▁mine ▁d rain age , ▁and ▁more ▁than ▁ ▁have ▁been ▁affected ▁in ▁the ▁App al ach ian ▁Mountains , ▁and ▁more ▁than ▁ ▁are ▁affected ▁in ▁Pennsylvania ▁and ▁West ▁Virginia . ▁ ▁In ▁one ▁waters hed ▁affected ▁by ▁abandoned ▁mine ▁d rain age , ▁the ▁value ▁of ▁homes ▁within ▁ ▁of ▁an ▁affected ▁stream ▁decre ased ▁by ▁$ 2 5 0 0 ▁per ▁, ▁as ▁of ▁ 2 0 0 9 . ▁ ▁Al ga e ▁sometimes ▁coat ▁streams ▁that ▁are ▁affected ▁by ▁abandoned ▁mine ▁d rain age , ▁although ▁aqu atic ▁plants ▁have ▁difficulty ▁surv iving ▁in ▁such ▁streams . ▁The ▁g ills ▁of ▁fish ▁are ▁also ▁har med ▁by ▁the ▁met als ▁in ▁abandoned ▁mine ▁d rain age . ▁The ▁eggs ▁of ▁macro in verte br ates ▁and ▁fish ▁are ▁also ▁sm other ed ▁by ▁the ▁precip itate . ▁Cold water ▁fish ▁such ▁as ▁tr out ▁are ▁especially ▁har med ▁by ▁abandoned ▁mine ▁d rain age . ▁ ▁Ab andon ed ▁mine ▁d rain age ▁also ▁affect s ▁the ▁plants ▁and ▁animals ▁in ▁the ▁area ▁surrounding ▁the ▁mine . ▁Mine ▁d rain age ▁poll ution ▁has ▁been ▁found ▁in ▁sheep ▁that ▁fed ▁near ▁abandoned ▁mines . ▁ ▁Rem ed ies ▁and ▁applications ▁There ▁are ▁several