▁l abs ▁within ▁the ▁U . S . ▁and ▁six ▁locations ▁over se as . ▁ ▁In ▁June ▁ 2 0 0 8 ▁the ▁Environment al ▁Prote ction ▁Agency ▁said ▁it ▁planned ▁to ▁add ▁the ▁base ▁to ▁the ▁Super fund ▁list ▁of ▁the ▁most ▁poll uted ▁places ▁in ▁the ▁country . ▁On ▁ 9 ▁April ▁ 2 0 0 9 , ▁" F ort ▁Det rick ▁Area ▁B ▁Gr ound ▁Water " ▁was ▁added ▁to ▁the ▁list ▁which ▁currently ▁includes ▁ 1 8 ▁other ▁sites ▁within ▁Maryland . ▁ ▁The ▁Forest ▁Glen ▁Anne x ▁of ▁the ▁Walter ▁Re ed ▁Army ▁Medical ▁Center ▁in ▁Silver ▁Spring , ▁Maryland ▁was ▁transferred ▁to ▁the ▁command ▁of ▁Fort ▁Det rick ▁in ▁ 2 0 0 8 ▁as ▁a ▁result ▁of ▁the ▁Base ▁Re align ment ▁and ▁Cl os ure ▁process . ▁▁ ▁about ▁ 7 , 9 0 0 ▁people ▁worked ▁at ▁Fort ▁Det rick . ▁The ▁base ▁has ▁been ▁the ▁largest ▁employ er ▁in ▁Frederick ▁County ▁and ▁contributed ▁more ▁than ▁$ 5 0 0 ▁million ▁into ▁the ▁local ▁economy ▁ann ually . ▁ ▁Environment al ▁cont am ination ▁Fort ▁Det rick ▁Area ▁B ▁is ▁a ▁ 3 9 9 - acre ▁prov ing ▁ground ▁and ▁was ▁a ▁dispos al ▁area ▁for ▁chemical , ▁bi ological , ▁and ▁radi ological ▁material ▁until ▁ 1 9 7 0 . ▁Only ▁very ▁recently , ▁in ▁ 2 0 0 9 , ▁was ▁it ▁listed ▁as ▁a ▁super fund ▁site ▁on ▁the ▁National ▁Prior ities ▁List ▁with ▁four ▁so ▁called