Frederick County, Maryland

GRIFFITH ENERGY SERVICES INC FREDERICK BULK PLANT

200 East South Street Frederick Md 21701 5656

S.W. BARRICK & SONS-LEGORE QUARRY

11640 Woodsboro Pike Keymar Md 21757

MARTIN MARIETTA BOONSBORO

20301 Benevola Church Road Boonsboro Md 21713 1707

MONTGOMERY CO. RESOURCE RECOVERY FACILITY

21204 Martinsburg Road Dickerson Md 20842 9406

FLOWSERVE CORPORATION

5310 Taneytown Pike Taneytown Md 21787