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   Counties page > Pb in Conterminous US > Pb in east-central US

Lead in Counties of the East-Central US

La Salle Co.: Pb= 43.4 +/- 25.2 ppm Louisa Co.: Pb= 17.5 +/- 1.0 ppm Mercer Co.: Pb= 18.6 +/- 3.8 ppm Jasper Co.: Pb= 25.7 +/- 5.8 ppm Stark Co.: Pb= 22.5 +/- 2.2 ppm Newton Co.: Pb= 25.4 +/- 3.2 ppm Knox Co.: Pb= 21.7 +/- 3.7 ppm Marshall Co.: Pb= 21.0 +/- 2.4 ppm Livingston Co.: Pb= 22.8 +/- 4.2 ppm Des Moines Co.: Pb= 17.0 +/- 1.9 ppm Henderson Co.: Pb= 21.7 +/- 2.5 ppm Warren Co.: Pb= 19.9 +/- 2.3 ppm Wabash Co.: Pb= 15.0 +/- 2.3 ppm Iroquois Co.: Pb= 23.4 +/- 1.7 ppm Huntington Co.: Pb= 18.2 +/- 5.4 ppm Miami Co.: Pb= 17.9 +/- 6.0 ppm Ford Co.: Pb= 22.0 +/- 2.8 ppm Peoria Co.: Pb= 20.0 +/- 4.6 ppm Woodford Co.: Pb= 24.9 +/- 7.0 ppm Adams Co.: Pb= 17.3 +/- 1.3 ppm Wells Co.: Pb= 18.5 +/- 2.3 ppm White Co.: Pb= 15.4 +/- 2.9 ppm Cass Co.: Pb= 32.5 +/- 16.7 ppm Hardin Co.: Pb= 18.6 +/- 1.4 ppm Lee Co.: Pb= 18.3 +/- 2.5 ppm McLean Co.: Pb= 22.3 +/- 2.1 ppm Tazewell Co.: Pb= 19.5 +/- 3.2 ppm Carroll Co.: Pb= 21.5 +/- 4.1 ppm Benton Co.: Pb= 21.4 +/- 3.7 ppm Mercer Co.: Pb= 17.6 +/- 1.7 ppm Fulton Co.: Pb= 19.5 +/- 6.0 ppm Morrow Co.: Pb= 21.9 +/- 3.3 ppm Marion Co.: Pb= 20.6 +/- 2.5 ppm Auglaize Co.: Pb= 18.1 +/- 1.0 ppm Westmoreland Co.: Pb= 35.6 +/- 13.3 ppm Tuscarawas Co.: Pb= 25.7 +/- 5.8 ppm Grant Co.: Pb= 19.5 +/- 2.0 ppm Hancock Co.: Pb= 18.1 +/- 4.5 ppm McDonough Co.: Pb= 23.2 +/- 3.7 ppm Jefferson Co.: Pb= 30.6 +/- 3.6 ppm Knox Co.: Pb= 16.1 +/- 1.2 ppm Jay Co.: Pb= 17.2 +/- 2.2 ppm Blackford Co.: Pb= 18.2 +/- 3.2 ppm Howard Co.: Pb= 22.9 +/- 3.1 ppm Tippecanoe Co.: Pb= 17.2 +/- 2.3 ppm Logan Co.: Pb= 14.7 +/- 3.1 ppm Union Co.: Pb= 14.9 +/- 2.6 ppm Vermilion Co.: Pb= 22.8 +/- 4.7 ppm Shelby Co.: Pb= 19.7 +/- 1.5 ppm Washington Co.: Pb= 26.9 +/- 3.6 ppm Warren Co.: Pb= 22.3 +/- 4.1 ppm Coshocton Co.: Pb= 20.3 +/- 3.3 ppm Delaware Co.: Pb= 17.8 +/- 1.5 ppm Mason Co.: Pb= 13.7 +/- 2.3 ppm Harrison Co.: Pb= 32.5 +/- 7.2 ppm Clinton Co.: Pb= 16.9 +/- 3.6 ppm Tipton Co.: Pb= 22.2 +/- 2.6 ppm Champaign Co.: Pb= 18.7 +/- 2.7 ppm Brooke Co.: Pb= 33.8 +/- 4.3 ppm Madison Co.: Pb= 18.8 +/- 3.3 ppm Delaware Co.: Pb= 15.8 +/- 2.7 ppm Fountain Co.: Pb= 23.0 +/- 7.7 ppm Darke Co.: Pb= 18.3 +/- 2.4 ppm Bedford Co.: Pb= 22.7 +/- 4.5 ppm Logan Co.: Pb= 18.7 +/- 1.7 ppm Randolph Co.: Pb= 16.2 +/- 1.8 ppm Franklin Co.: Pb= 28.0 +/- 2.9 ppm Somerset Co.: Pb= 21.6 +/- 4.0 ppm Schuyler Co.: Pb= 11.6 +/- 2.0 ppm De Witt Co.: Pb= 21.7 +/- 2.2 ppm Piatt Co.: Pb= 20.6 +/- 1.6 ppm Licking Co.: Pb= 15.5 +/- 1.7 ppm Champaign Co.: Pb= 18.0 +/- 3.4 ppm York Co.: Pb= 28.0 +/- 22.3 ppm Guernsey Co.: Pb= 24.9 +/- 4.4 ppm Hamilton Co.: Pb= 25.0 +/- 8.7 ppm Montgomery Co.: Pb= 16.4 +/- 5.7 ppm Adams Co.: Pb= 19.1 +/- 5.3 ppm Miami Co.: Pb= 17.5 +/- 2.2 ppm Ohio Co.: Pb= 29.5 +/- 1.8 ppm Boone Co.: Pb= 45.1 +/- 38.8 ppm Belmont Co.: Pb= 33.2 +/- 2.7 ppm Muskingum Co.: Pb= 23.9 +/- 3.6 ppm Fulton Co.: Pb= 25.9 +/- 7.2 ppm Menard Co.: Pb= 19.1 +/- 2.8 ppm Vermillion Co.: Pb= 15.8 +/- 7.4 ppm Fayette Co.: Pb= 23.4 +/- 4.8 ppm Franklin Co.: Pb= 18.2 +/- 1.6 ppm Cass Co.: Pb= 13.3 +/- 1.9 ppm Madison Co.: Pb= 17.7 +/- 1.3 ppm Brown Co.: Pb= 12.9 +/- 1.5 ppm Henry Co.: Pb= 15.6 +/- 3.0 ppm Adams Co.: Pb= 25.8 +/- 2.2 ppm Macon Co.: Pb= 20.4 +/- 1.8 ppm Clark Co.: Pb= 18.4 +/- 2.5 ppm Marshall Co.: Pb= 29.2 +/- 8.7 ppm Greene Co.: Pb= 25.7 +/- 1.9 ppm Wayne Co.: Pb= 13.4 +/- 2.6 ppm Sangamon Co.: Pb= 27.0 +/- 4.3 ppm Noble Co.: Pb= 25.0 +/- 2.1 ppm Parke Co.: Pb= 11.5 +/- 1.9 ppm Hancock Co.: Pb= 19.8 +/- 2.2 ppm Fairfield Co.: Pb= 16.9 +/- 0.6 ppm Perry Co.: Pb= 20.4 +/- 3.1 ppm Marion Co.: Pb= 20.5 +/- 6.2 ppm Hendricks Co.: Pb= 36.1 +/- 41.7 ppm Montgomery Co.: Pb= 18.0 +/- 1.3 ppm Preble Co.: Pb= 15.2 +/- 3.1 ppm Edgar Co.: Pb= 13.2 +/- 1.9 ppm Douglas Co.: Pb= 17.3 +/- 1.9 ppm Morgan Co.: Pb= 23.0 +/- 8.2 ppm Monroe Co.: Pb= 30.3 +/- 3.0 ppm Putnam Co.: Pb= 14.0 +/- 2.9 ppm Greene Co.: Pb= 17.4 +/- 1.1 ppm Pike Co.: Pb= 17.4 +/- 2.0 ppm New Castle Co.: Pb= 53.0 +/- 19.0 ppm Christian Co.: Pb= 23.2 +/- 1.3 ppm Pickaway Co.: Pb= 17.0 +/- 2.1 ppm Moultrie Co.: Pb= 21.6 +/- 3.4 ppm Scott Co.: Pb= 16.6 +/- 3.0 ppm Fayette Co.: Pb= 9.8 +/- 0.8 ppm Rush Co.: Pb= 14.7 +/- 4.1 ppm Salem Co.: Pb= 57.9 +/- 19.6 ppm Morgan Co.: Pb= 26.7 +/- 1.4 ppm Atlantic Co.: Pb= 50.4 +/- 22.9 ppm Union Co.: Pb= 12.1 +/- 1.4 ppm Allegany Co.: Pb= 31.0 +/- 5.5 ppm Washington Co.: Pb= 27.9 +/- 8.8 ppm Garrett Co.: Pb= 20.1 +/- 6.0 ppm Cecil Co.: Pb= 26.2 +/- 9.9 ppm Wetzel Co.: Pb= 28.2 +/- 4.7 ppm Harford Co.: Pb= 15.6 +/- 3.3 ppm Monongalia Co.: Pb= 27.5 +/- 2.3 ppm Preston Co.: Pb= 19.0 +/- 4.2 ppm Baltimore Co.: Pb= 24.4 +/- 9.2 ppm Carroll Co.: Pb= 30.3 +/- 4.9 ppm Frederick Co.: Pb= 23.8 +/- 4.2 ppm Fayette Co.: Pb= 14.9 +/- 1.8 ppm Shelby Co.: Pb= 17.4 +/- 3.4 ppm Morgan Co.: Pb= 30.9 +/- 1.9 ppm Ralls Co.: Pb= 21.7 +/- 1.5 ppm Coles Co.: Pb= 18.2 +/- 3.2 ppm Hocking Co.: Pb= 16.6 +/- 2.9 ppm Shelby Co.: Pb= 19.1 +/- 4.8 ppm Mineral Co.: Pb= 31.6 +/- 3.9 ppm Washington Co.: Pb= 27.9 +/- 1.9 ppm Marion Co.: Pb= 32.1 +/- 8.1 ppm Johnson Co.: Pb= 13.1 +/- 3.6 ppm Morgan Co.: Pb= 14.6 +/- 2.3 ppm Berkeley Co.: Pb= 28.2 +/- 1.9 ppm Vigo Co.: Pb= 17.0 +/- 2.7 ppm Clay Co.: Pb= 16.3 +/- 2.7 ppm Tyler Co.: Pb= 26.4 +/- 2.7 ppm Pike Co.: Pb= 21.7 +/- 3.3 ppm Butler Co.: Pb= 17.4 +/- 1.3 ppm Warren Co.: Pb= 17.1 +/- 1.8 ppm Clinton Co.: Pb= 15.2 +/- 1.2 ppm Cumberland Co.: Pb= 66.3 +/- 12.8 ppm Athens Co.: Pb= 25.4 +/- 3.7 ppm Hampshire Co.: Pb= 30.0 +/- 6.3 ppm Franklin Co.: Pb= 14.5 +/- 3.6 ppm Montgomery Co.: Pb= 18.6 +/- 5.1 ppm Macoupin Co.: Pb= 22.0 +/- 8.2 ppm Greene Co.: Pb= 21.7 +/- 3.3 ppm Ross Co.: Pb= 16.6 +/- 1.5 ppm Jefferson Co.: Pb= 23.2 +/- 1.5 ppm Clark Co.: Pb= 12.1 +/- 2.0 ppm Pleasants Co.: Pb= 28.6 +/- 2.1 ppm Owen Co.: Pb= 17.4 +/- 2.6 ppm Harrison Co.: Pb= 36.9 +/- 13.4 ppm Frederick Co.: Pb= 26.7 +/- 4.0 ppm Decatur Co.: Pb= 20.8 +/- 3.0 ppm Taylor Co.: Pb= 37.6 +/- 4.5 ppm Doddridge Co.: Pb= 27.7 +/- 3.8 ppm Wood Co.: Pb= 27.8 +/- 1.1 ppm Kent Co.: Pb= 40.0 +/- 19.6 ppm Calhoun Co.: Pb= 29.5 +/- 10.6 ppm Vinton Co.: Pb= 18.6 +/- 3.7 ppm Ritchie Co.: Pb= 28.5 +/- 2.7 ppm Kent Co.: Pb= 38.1 +/- 5.6 ppm Cumberland Co.: Pb= 22.4 +/- 4.5 ppm Highland Co.: Pb= 15.0 +/- 3.0 ppm Baltimore City Co.: Pb= 40.6 +/- 21.7 pp Howard Co.: Pb= 44.4 +/- 12.8 ppm Monroe Co.: Pb= 22.0 +/- 2.6 ppm Montgomery Co.: Pb= 52.5 +/- 33.4 ppm Bartholomew Co.: Pb= 28.6 +/- 12.6 ppm Brown Co.: Pb= 25.0 +/- 3.5 ppm Grant Co.: Pb= 19.9 +/- 5.6 ppm Cape May Co.: Pb= 28.3 +/- 13.5 ppm Loudoun Co.: Pb= 25.6 +/- 5.7 ppm Hamilton Co.: Pb= 27.1 +/- 9.3 ppm Ripley Co.: Pb= 20.1 +/- 4.9 ppm Dearborn Co.: Pb= 23.1 +/- 7.6 ppm Barbour Co.: Pb= 28.9 +/- 8.4 ppm Tucker Co.: Pb= 14.7 +/- 2.0 ppm Clermont Co.: Pb= 23.2 +/- 4.0 ppm Clarke Co.: Pb= 24.9 +/- 4.5 ppm Jersey Co.: Pb= 29.4 +/- 9.6 ppm Queen Annes Co.: Pb= 37.3 +/- 8.6 ppm Sullivan Co.: Pb= 18.7 +/- 3.8 ppm Brown Co.: Pb= 18.4 +/- 2.6 ppm Hardy Co.: Pb= 23.1 +/- 3.2 ppm Anne Arundel Co.: Pb= 93.0 +/- 63.1 ppm Lincoln Co.: Pb= 30.3 +/- 8.7 ppm Fayette Co.: Pb= 18.0 +/- 5.6 ppm Effingham Co.: Pb= 14.9 +/- 4.0 ppm Jackson Co.: Pb= 17.1 +/- 1.6 ppm Meigs Co.: Pb= 28.3 +/- 3.0 ppm Pike Co.: Pb= 18.5 +/- 4.4 ppm Jennings Co.: Pb= 20.8 +/- 4.2 ppm Wirt Co.: Pb= 24.5 +/- 1.6 ppm Crawford Co.: Pb= 18.6 +/- 4.0 ppm Jasper Co.: Pb= 23.6 +/- 2.9 ppm Greene Co.: Pb= 18.3 +/- 5.4 ppm Lewis Co.: Pb= 27.6 +/- 2.6 ppm Montgomery Co.: Pb= 17.6 +/- 7.0 ppm Boone Co.: Pb= 43.3 +/- 7.4 ppm Caroline Co.: Pb= 38.8 +/- 6.2 ppm Prince Georges Co.: Pb= 61.6 +/- 70.3 pp Campbell Co.: Pb= 40.7 +/- 17.2 ppm Randolph Co.: Pb= 15.1 +/- 2.6 ppm Upshur Co.: Pb= 26.0 +/- 6.8 ppm Gilmer Co.: Pb= 26.4 +/- 1.5 ppm Shenandoah Co.: Pb= 22.7 +/- 2.6 ppm Kenton Co.: Pb= 48.5 +/- 15.5 ppm Jackson Co.: Pb= 27.2 +/- 1.7 ppm Jackson Co.: Pb= 27.9 +/- 9.2 ppm Fairfax Co.: Pb= 59.3 +/- 34.0 ppm Adams Co.: Pb= 16.5 +/- 4.2 ppm Calhoun Co.: Pb= 31.2 +/- 3.6 ppm Warren Co.: Pb= 28.2 +/- 4.7 ppm Gallia Co.: Pb= 21.8 +/- 4.4 ppm Ohio Co.: Pb= 39.7 +/- 6.9 ppm Mason Co.: Pb= 27.3 +/- 2.5 ppm Bond Co.: Pb= 19.0 +/- 4.1 ppm Scioto Co.: Pb= 15.5 +/- 0.8 ppm Fauquier Co.: Pb= 28.3 +/- 3.6 ppm Madison Co.: Pb= 26.3 +/- 7.2 ppm Sussex Co.: Pb= 42.5 +/- 14.5 ppm Warren Co.: Pb= 17.8 +/- 5.0 ppm Lawrence Co.: Pb= 23.4 +/- 5.4 ppm St. Charles Co.: Pb= 30.8 +/- 14.6 ppm Pendleton Co.: Pb= 18.4 +/- 5.1 ppm Talbot Co.: Pb= 35.7 +/- 4.1 ppm Prince William Co.: Pb= 27.0 +/- 4.9 ppm Roane Co.: Pb= 29.0 +/- 4.3 ppm Switzerland Co.: Pb= 28.1 +/- 4.6 ppm Clay Co.: Pb= 15.2 +/- 2.5 ppm Jefferson Co.: Pb= 25.2 +/- 5.1 ppm Knox Co.: Pb= 24.6 +/- 6.3 ppm Braxton Co.: Pb= 29.5 +/- 3.0 ppm Martin Co.: Pb= 21.0 +/- 7.2 ppm Daviess Co.: Pb= 20.4 +/- 8.7 ppm St. Louis Co.: Pb= 40.3 +/- 19.1 ppm Pendleton Co.: Pb= 35.7 +/- 6.8 ppm Rappahannock Co.: Pb= 34.1 +/- 2.7 ppm Gallatin Co.: Pb= 28.4 +/- 6.4 ppm Lawrence Co.: Pb= 25.7 +/- 4.9 ppm Richland Co.: Pb= 18.7 +/- 4.1 ppm Rockingham Co.: Pb= 22.4 +/- 4.8 ppm Lawrence Co.: Pb= 18.6 +/- 1.6 ppm Scott Co.: Pb= 47.9 +/- 11.6 ppm Page Co.: Pb= 29.7 +/- 3.0 ppm Bracken Co.: Pb= 21.6 +/- 3.7 ppm Marion Co.: Pb= 22.3 +/- 5.0 ppm Grant Co.: Pb= 32.7 +/- 4.0 ppm Washington Co.: Pb= 26.4 +/- 7.0 ppm St. Louis City Co.: Pb= 61.5 +/- 16.7 pp Calvert Co.: Pb= 15.2 +/- 5.3 ppm Mason Co.: Pb= 47.4 +/- 28.7 ppm Carroll Co.: Pb= 28.8 +/- 1.7 ppm Greenup Co.: Pb= 17.2 +/- 0.9 ppm Clinton Co.: Pb= 31.3 +/- 5.6 ppm Pocahontas Co.: Pb= 19.9 +/- 3.2 ppm Webster Co.: Pb= 17.1 +/- 2.2 ppm Trimble Co.: Pb= 31.0 +/- 4.7 ppm Lewis Co.: Pb= 18.7 +/- 5.8 ppm Owen Co.: Pb= 30.0 +/- 6.4 ppm Franklin Co.: Pb= 28.0 +/- 21.3 ppm Charles Co.: Pb= 13.4 +/- 4.6 ppm Dorchester Co.: Pb= 28.5 +/- 5.3 ppm Culpeper Co.: Pb= 27.5 +/- 5.7 ppm Orange Co.: Pb= 25.0 +/- 4.6 ppm Putnam Co.: Pb= 28.8 +/- 2.3 ppm Clay Co.: Pb= 21.0 +/- 3.9 ppm St. Clair Co.: Pb= 34.5 +/- 10.3 ppm Madison Co.: Pb= 30.0 +/- 3.5 ppm Kanawha Co.: Pb= 28.7 +/- 3.1 ppm Robertson Co.: Pb= 27.4 +/- 2.3 ppm Wayne Co.: Pb= 21.0 +/- 2.1 ppm Clark Co.: Pb= 44.3 +/- 14.2 ppm Cabell Co.: Pb= 27.1 +/- 2.9 ppm Henry Co.: Pb= 45.7 +/- 9.7 ppm Stafford Co.: Pb= 22.3 +/- 3.3 ppm Highland Co.: Pb= 20.0 +/- 3.4 ppm Harrison Co.: Pb= 43.1 +/- 14.2 ppm Edwards Co.: Pb= 22.0 +/- 1.9 ppm Wabash Co.: Pb= 36.3 +/- 9.1 ppm Wicomico Co.: Pb= 36.2 +/- 7.1 ppm Nicholas Co.: Pb= 14.9 +/- 3.2 ppm Pike Co.: Pb= 45.5 +/- 12.7 ppm Gibson Co.: Pb= 62.0 +/- 22.4 ppm Dubois Co.: Pb= 39.0 +/- 10.7 ppm Fleming Co.: Pb= 39.1 +/- 19.3 ppm Oldham Co.: Pb= 56.8 +/- 12.2 ppm Monroe Co.: Pb= 28.3 +/- 9.7 ppm Washington Co.: Pb= 25.3 +/- 5.6 ppm St. Marys Co.: Pb= 9.9 +/- 3.1 ppm Boyd Co.: Pb= 20.5 +/- 0.8 ppm Carter Co.: Pb= 16.7 +/- 2.2 ppm Jefferson Co.: Pb= 76.6 +/- 87.2 ppm Scott Co.: Pb= 82.9 +/- 21.3 ppm Augusta Co.: Pb= 22.4 +/- 6.2 ppm Jefferson Co.: Pb= 25.6 +/- 6.3 ppm Greene Co.: Pb= 38.6 +/- 6.5 ppm Nicholas Co.: Pb= 35.3 +/- 4.6 ppm Worcester Co.: Pb= 37.9 +/- 14.8 ppm Crawford Co.: Pb= 25.8 +/- 3.1 ppm Harrison Co.: Pb= 21.6 +/- 2.1 ppm Wayne Co.: Pb= 19.7 +/- 8.2 ppm Floyd Co.: Pb= 27.1 +/- 6.6 ppm King George Co.: Pb= 16.4 +/- 3.6 ppm Rowan Co.: Pb= 16.2 +/- 1.8 ppm Orange Co.: Pb= 23.9 +/- 9.8 ppm Jefferson Co.: Pb= 55.7 +/- 19.5 ppm Spotsylvania Co.: Pb= 20.5 +/- 4.2 ppm Lincoln Co.: Pb= 26.3 +/- 4.2 ppm Franklin Co.: Pb= 54.3 +/- 15.1 ppm Bourbon Co.: Pb= 65.9 +/- 23.1 ppm Shelby Co.: Pb= 57.5 +/- 15.1 ppm Bath Co.: Pb= 21.7 +/- 4.2 ppm Somerset Co.: Pb= 42.6 +/- 8.2 ppm Westmoreland Co.: Pb= 19.8 +/- 8.1 ppm Albemarle Co.: Pb= 36.9 +/- 9.4 ppm Lawrence Co.: Pb= 14.5 +/- 3.5 ppm Greenbrier Co.: Pb= 20.4 +/- 5.9 ppm Elliott Co.: Pb= 16.4 +/- 2.1 ppm Perry Co.: Pb= 21.3 +/- 3.9 ppm Bath Co.: Pb= 29.1 +/- 10.5 ppm Fayette Co.: Pb= 11.4 +/- 5.7 ppm White Co.: Pb= 18.8 +/- 1.5 ppm Hamilton Co.: Pb= 19.2 +/- 1.3 ppm Caroline Co.: Pb= 25.6 +/- 3.7 ppm Warrick Co.: Pb= 34.4 +/- 13.2 ppm Boone Co.: Pb= 22.2 +/- 3.5 ppm Posey Co.: Pb= 26.7 +/- 9.3 ppm Randolph Co.: Pb= 17.8 +/- 2.2 ppm Perry Co.: Pb= 20.9 +/- 4.3 ppm Crawford Co.: Pb= 66.1 +/- 68.7 ppm Fayette Co.: Pb= 83.5 +/- 30.6 ppm Washington Co.: Pb= 161.1 +/- 115.4 ppm Spencer Co.: Pb= 21.0 +/- 4.9 ppm Meade Co.: Pb= 27.6 +/- 7.0 ppm Montgomery Co.: Pb= 24.1 +/- 4.4 ppm Vanderburgh Co.: Pb= 47.7 +/- 14.2 ppm Essex Co.: Pb= 25.8 +/- 3.1 ppm Louisa Co.: Pb= 22.3 +/- 3.7 ppm Spencer Co.: Pb= 43.9 +/- 8.8 ppm Anderson Co.: Pb= 53.1 +/- 19.9 ppm Ste. Genevieve Co.: Pb= 42.9 +/- 32.9 pp Franklin Co.: Pb= 25.2 +/- 4.7 ppm Richmond Co.: Pb= 20.9 +/- 3.1 ppm Bullitt Co.: Pb= 25.6 +/- 7.5 ppm Morgan Co.: Pb= 14.2 +/- 1.9 ppm Clark Co.: Pb= 33.8 +/- 8.5 ppm Rockbridge Co.: Pb= 30.5 +/- 8.1 ppm St. Francois Co.: Pb= 194.9 +/- 164.3 pp Menifee Co.: Pb= 13.8 +/- 1.7 ppm Nelson Co.: Pb= 38.2 +/- 11.3 ppm Breckinridge Co.: Pb= 22.2 +/- 8.0 ppm Northumberland Co.: Pb= 19.2 +/- 3.6 ppm Accomack Co.: Pb= 47.1 +/- 14.2 ppm Logan Co.: Pb= 28.9 +/- 11.0 ppm Hanover Co.: Pb= 21.9 +/- 5.4 ppm Hardin Co.: Pb= 13.3 +/- 4.4 ppm Fluvanna Co.: Pb= 26.6 +/- 7.7 ppm Jessamine Co.: Pb= 36.5 +/- 11.8 ppm Johnson Co.: Pb= 12.3 +/- 2.4 ppm Hancock Co.: Pb= 16.8 +/- 1.7 ppm Nelson Co.: Pb= 22.3 +/- 4.8 ppm Raleigh Co.: Pb= 15.2 +/- 2.8 ppm Henderson Co.: Pb= 24.0 +/- 8.1 ppm Mingo Co.: Pb= 15.7 +/- 2.5 ppm King and Queen Co.: Pb= 23.3 +/- 5.1 ppm Mercer Co.: Pb= 30.7 +/- 5.6 ppm Martin Co.: Pb= 8.3 +/- 1.5 ppm Alleghany Co.: Pb= 36.4 +/- 10.0 ppm Jackson Co.: Pb= 25.3 +/- 9.9 ppm Powell Co.: Pb= 19.1 +/- 10.1 ppm Daviess Co.: Pb= 15.6 +/- 1.5 ppm Madison Co.: Pb= 24.1 +/- 5.2 ppm Washington Co.: Pb= 27.5 +/- 3.2 ppm Gallatin Co.: Pb= 16.4 +/- 2.6 ppm King William Co.: Pb= 20.9 +/- 4.4 ppm Saline Co.: Pb= 20.7 +/- 2.6 ppm Perry Co.: Pb= 23.0 +/- 6.9 ppm Goochland Co.: Pb= 24.6 +/- 6.0 ppm Union Co.: Pb= 17.2 +/- 2.5 ppm Magoffin Co.: Pb= 15.1 +/- 2.6 ppm Summers Co.: Pb= 16.8 +/- 5.5 ppm Williamson Co.: Pb= 19.5 +/- 5.3 ppm Wolfe Co.: Pb= 14.6 +/- 3.2 ppm Estill Co.: Pb= 17.8 +/- 5.2 ppm Lancaster Co.: Pb= 20.8 +/- 7.1 ppm Amherst Co.: Pb= 38.1 +/- 9.3 ppm Botetourt Co.: Pb= 41.0 +/- 13.0 ppm Buckingham Co.: Pb= 23.0 +/- 4.0 ppm Wyoming Co.: Pb= 19.7 +/- 6.6 ppm Dent Co.: Pb= 19.4 +/- 12.1 ppm Middlesex Co.: Pb= 29.9 +/- 5.1 ppm Floyd Co.: Pb= 14.7 +/- 5.2 ppm Cumberland Co.: Pb= 20.8 +/- 2.8 ppm Pike Co.: Pb= 14.2 +/- 3.6 ppm Iron Co.: Pb= 45.0 +/- 21.1 ppm Ohio Co.: Pb= 15.8 +/- 1.3 ppm Larue Co.: Pb= 15.1 +/- 2.9 ppm Monroe Co.: Pb= 23.6 +/- 4.6 ppm Marion Co.: Pb= 20.7 +/- 3.4 ppm Lee Co.: Pb= 18.4 +/- 9.7 ppm Boyle Co.: Pb= 29.3 +/- 4.9 ppm Henrico Co.: Pb= 29.0 +/- 7.1 ppm Breathitt Co.: Pb= 13.9 +/- 4.2 ppm Powhatan Co.: Pb= 26.7 +/- 4.1 ppm McLean Co.: Pb= 16.3 +/- 1.1 ppm Craig Co.: Pb= 34.6 +/- 10.5 ppm Webster Co.: Pb= 20.4 +/- 2.4 ppm Madison Co.: Pb= 54.4 +/- 31.0 ppm Lincoln Co.: Pb= 21.4 +/- 5.0 ppm New Kent Co.: Pb= 22.8 +/- 2.1 ppm Grayson Co.: Pb= 13.0 +/- 2.4 ppm Bedford Co.: Pb= 26.1 +/- 10.0 ppm Cape Girardeau Co.: Pb= 19.2 +/- 1.6 ppm Reynolds Co.: Pb= 23.7 +/- 12.1 ppm Gloucester Co.: Pb= 37.3 +/- 6.0 ppm Johnson Co.: Pb= 16.7 +/- 4.1 ppm Union Co.: Pb= 17.5 +/- 3.4 ppm Pope Co.: Pb= 18.5 +/- 3.3 ppm Hardin Co.: Pb= 15.7 +/- 1.0 ppm Bollinger Co.: Pb= 22.8 +/- 5.4 ppm Mercer Co.: Pb= 26.6 +/- 7.7 ppm Jackson Co.: Pb= 15.6 +/- 4.8 ppm Hopkins Co.: Pb= 17.4 +/- 3.6 ppm Chesterfield Co.: Pb= 29.9 +/- 3.7 ppm Northampton Co.: Pb= 39.1 +/- 4.0 ppm Appomattox Co.: Pb= 22.3 +/- 2.4 ppm Casey Co.: Pb= 15.5 +/- 3.1 ppm McDowell Co.: Pb= 27.6 +/- 8.6 ppm Crittenden Co.: Pb= 16.8 +/- 1.3 ppm Mathews Co.: Pb= 48.6 +/- 3.9 ppm Owsley Co.: Pb= 27.1 +/- 32.8 ppm Rockcastle Co.: Pb= 14.3 +/- 2.6 ppm Buchanan Co.: Pb= 16.7 +/- 2.4 ppm Knott Co.: Pb= 11.6 +/- 2.2 ppm Amelia Co.: Pb= 24.5 +/- 7.3 ppm Charles City Co.: Pb= 26.3 +/- 3.9 ppm Taylor Co.: Pb= 14.8 +/- 1.7 ppm Giles Co.: Pb= 26.0 +/- 2.7 ppm Green Co.: Pb= 14.2 +/- 2.6 ppm James City Co.: Pb= 25.1 +/- 2.5 ppm Hart Co.: Pb= 12.9 +/- 4.1 ppm Perry Co.: Pb= 12.8 +/- 4.3 ppm Campbell Co.: Pb= 15.8 +/- 4.2 ppm Livingston Co.: Pb= 20.2 +/- 4.4 ppm Shannon Co.: Pb= 21.8 +/- 2.4 ppm Roanoke Co.: Pb= 26.5 +/- 4.3 ppm Muhlenberg Co.: Pb= 15.8 +/- 2.3 ppm Prince Edward Co.: Pb= 24.3 +/- 3.6 ppm Butler Co.: Pb= 14.5 +/- 2.6 ppm York Co.: Pb= 30.2 +/- 2.2 ppm Caldwell Co.: Pb= 17.3 +/- 1.4 ppm Montgomery Co.: Pb= 20.3 +/- 1.8 ppm Clay Co.: Pb= 17.2 +/- 3.5 ppm Pulaski Co.: Pb= 12.2 +/- 2.4 ppm Edmonson Co.: Pb= 13.9 +/- 3.6 ppm Tazewell Co.: Pb= 19.6 +/- 6.8 ppm Massac Co.: Pb= 21.0 +/- 3.4 ppm Laurel Co.: Pb= 22.7 +/- 10.4 ppm Alexander Co.: Pb= 34.5 +/- 36.0 ppm Pulaski Co.: Pb= 35.7 +/- 18.1 ppm Prince George Co.: Pb= 22.9 +/- 3.5 ppm Leslie Co.: Pb= 15.2 +/- 2.1 ppm Wayne Co.: Pb= 39.4 +/- 49.2 ppm Adair Co.: Pb= 13.0 +/- 1.6 ppm Dickenson Co.: Pb= 16.8 +/- 2.4 ppm Bland Co.: Pb= 20.3 +/- 4.2 ppm Nottoway Co.: Pb= 28.1 +/- 5.6 ppm Letcher Co.: Pb= 21.8 +/- 5.9 ppm Dinwiddie Co.: Pb= 30.6 +/- 5.0 ppm Scott Co.: Pb= 28.8 +/- 37.2 ppm Charlotte Co.: Pb= 18.7 +/- 2.3 ppm Surry Co.: Pb= 27.5 +/- 3.6 ppm Pulaski Co.: Pb= 18.2 +/- 3.1 ppm Franklin Co.: Pb= 20.0 +/- 4.3 ppm Ballard Co.: Pb= 33.2 +/- 7.6 ppm McCracken Co.: Pb= 29.7 +/- 7.0 ppm Wise Co.: Pb= 23.1 +/- 3.3 ppm Warren Co.: Pb= 19.1 +/- 4.1 ppm Russell Co.: Pb= 11.1 +/- 1.2 ppm Metcalfe Co.: Pb= 10.9 +/- 2.1 ppm Lyon Co.: Pb= 19.3 +/- 1.3 ppm Barren Co.: Pb= 14.9 +/- 2.9 ppm Christian Co.: Pb= 15.6 +/- 2.2 ppm Isle of Wight Co.: Pb= 27.2 +/- 1.4 ppm Russell Co.: Pb= 21.6 +/- 4.2 ppm Pittsylvania Co.: Pb= 20.6 +/- 6.0 ppm Stoddard Co.: Pb= 21.0 +/- 5.1 ppm Floyd Co.: Pb= 21.2 +/- 2.5 ppm Hampton : Pb= 28.1 +/- 1.9 ppm Lunenburg Co.: Pb= 20.7 +/- 4.7 ppm Sussex Co.: Pb= 26.5 +/- 3.9 ppm Carter Co.: Pb= 110.4 +/- 167.2 ppm Todd Co.: Pb= 13.0 +/- 1.7 ppm Logan Co.: Pb= 11.1 +/- 1.5 ppm Wythe Co.: Pb= 35.4 +/- 14.3 ppm Mississippi Co.: Pb= 72.5 +/- 74.0 ppm Marshall Co.: Pb= 20.3 +/- 3.1 ppm Halifax Co.: Pb= 19.0 +/- 4.0 ppm Knox Co.: Pb= 21.3 +/- 2.3 ppm Norfolk : Pb= 26.9 +/- 1.5 ppm Virginia Beach : Pb= 38.6 +/- 6.9 ppm Brunswick Co.: Pb= 25.0 +/- 6.0 ppm Harlan Co.: Pb= 35.3 +/- 39.6 ppm Smyth Co.: Pb= 45.6 +/- 23.1 ppm Trigg Co.: Pb= 18.5 +/- 1.7 ppm Wayne Co.: Pb= 11.4 +/- 2.6 ppm Southampton Co.: Pb= 27.7 +/- 3.7 ppm Whitley Co.: Pb= 17.9 +/- 4.0 ppm McCreary Co.: Pb= 17.0 +/- 12.8 ppm Bell Co.: Pb= 20.2 +/- 2.4 ppm Carlisle Co.: Pb= 21.0 +/- 6.4 ppm Graves Co.: Pb= 14.3 +/- 2.6 ppm Suffolk : Pb= 26.4 +/- 3.0 ppm Cumberland Co.: Pb= 11.0 +/- 1.2 ppm Allen Co.: Pb= 18.5 +/- 3.4 ppm Carroll Co.: Pb= 23.9 +/- 3.8 ppm Washington Co.: Pb= 23.1 +/- 3.8 ppm Butler Co.: Pb= 38.9 +/- 41.0 ppm Greensville Co.: Pb= 26.8 +/- 5.7 ppm Lee Co.: Pb= 41.2 +/- 21.8 ppm Mecklenburg Co.: Pb= 20.4 +/- 3.4 ppm Scott Co.: Pb= 24.4 +/- 7.3 ppm