Lead (tons) County Site Name Facility Type City Latitude Longitude

0.43 Frederick Frederick Muni Airport Frederick 39.41 -77.37

0.42 Anne Arundel Baltimore-Washington In Airport Baltimore 39.18 -76.67

0.27 Montgomery Montgomery County Airpa Airport Gaithersburg 39.16 -77.16

0.19 Queen Annes Bay Bridge Airport Stevensville 38.97 -76.32

0.19 Carroll Carroll County Regional Airport Unknown 39.6 -77

0.17 St. Marys Capt Walter Francis Duk Airport Leonardtown 38.31 -76.55

0.13 Harford PHILLIPS AAF Airport ABERDEEN PROVING GROUNDS(ABERDEEN) 39.46 -76.16

0.13 Baltimore RG Steel Sparrows Point, LLC Steel Mill Sparrows Point 39.21 -76.47

0.13 Anne Arundel Tipton Airport Fort Meade(Odenton) 39.08 -76.75

0.12 Talbot Easton/Newnam Field Airport Easton 38.8 -76.06

0.10 Worcester Ocean City Muni Airport Ocean City 38.31 -75.12

0.09 Washington Hagerstown Regional-Ric Airport Hagerstown 39.7 -77.73

0.09 Anne Arundel Lee Airport Annapolis 38.94 -76.56

0.08 Wicomico Salisbury-Ocean City Wi Airport Salisbury 38.33 -75.51

0.08 Charles GenOn Energy, Inc.-Morgantown Electricity Generation via 

Combustion Newburg 38.35 -76.97

0.07 Caroline RIDGELY AIRPARK Airport RIDGELY 38.97 -75.86

0.07 Prince Georges Freeway Airport Mitchellville 38.94 -76.77

0.06 Dorchester Cambridge-Dorchester Airport Cambridge 38.53 -76.03

0.05 Anne Arundel Suburban Airport Laurel 39.07 -76.82

0.05 Prince Georges GenOn Energy, Inc.-Chalk Point Electricity Generation via 

Combustion Aquasco 38.54 -76.68

0.05 Harford Harford County Airport Churchville 39.56 -76.2

0.04 Charles Maryland Airport Indian Head 38.6 -77.07

0.04 Carroll CLEARVIEW AIRPARK Airport WESTMINSTER 39.46 -77.01

0.04 Cecil CECIL COUNTY Airport ELKTON 39.57 -75.86

0.04 Garrett Garrett County Airport Oakland 39.58 -79.33

0.04 Allegany Luke Paper Company Pulp and Paper Plant Luke 39.47 -79.05

0.03 Baltimore Martin State Airport Baltimore 39.32 -76.41

0.03 Prince Georges Potomac Airfield Airport Friendly 38.74 -76.95

0.03 Kent Eastman Specialties Corporation Chestertown 39.26 -76.08

0.03 Montgomery Montgomery County RRF Municipal Waste Combustor Dickerson 39.2 -77.45

0.02 Harford FALLSTON Airport FALLSTON 39.5 -76.41

0.02 Baltimore ESSEX SKYPARK Airport BALTIMORE 39.26 -76.43

0.02 Baltimore city BALTIMORE POLICE DEPARTMENT Airport BALTIMORE 39.29 -76.6

0.02 Prince Georges Western Branch WWTP Wastewater Treatment Facility Upper Marlboro 38.79 -76.72

0.02 Montgomery GenOn Energy, Inc.-Dickerson Electricity Generation via 

Combustion Dickerson 39.2 -77.46

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Lead (tons) County Site Name Facility Type City Latitude Longitude

0.02 Washington Holcim (US), Inc. Portland Cement 

Manufacturing Hagerstown 39.65 -77.68

0.01 Prince Georges Washington Executive/Hy Airport Clinton 38.74 -76.93

0.01 Montgomery Davis Airport Laytonsville 39.24 -77.14

0.01 Carroll Lehigh Cement Company - Union Bridge Portland Cement 

Manufacturing Union Bridge 39.56 -77.17

0.01 Kent MASSEY AERODROME Airport MASSEY 39.29 -75.79

0.01 Baltimore Constellation - Crane Electricity Generation via 

Combustion Middle River 39.32 -76.36

0.01 Anne Arundel Constellation - Fort Smallwood Complex Electricity Generation via 

Combustion Baltimore 39.17 -76.53

0.01 Baltimore Lafarge Building Materials, Inc. Mineral Processing Plant Sparrows Point 39.21 -76.46

0.01 Charles Naval Support Facility, Indian Head Military Base Indian Head 38.58 -77.17

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