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   Counties page > Pb in Conterminous US > Pb in southwestern US

Lead in Counties of the Southwestern US

Fremont Co.: Pb= 23.0 +/- 4.6 ppm Lincoln Co.: Pb= 20.0 +/- 3.8 ppm Carbon Co.: Pb= 21.4 +/- 7.8 ppm Sweetwater Co.: Pb= 25.6 +/- 4.3 ppm Elko Co.: Pb= 26.8 +/- 15.0 ppm Rich Co.: Pb= 12.8 +/- 2.6 ppm Box Elder Co.: Pb= 33.6 +/- 59.7 ppm Humboldt Co.: Pb= 20.3 +/- 5.8 ppm Cache Co.: Pb= 40.2 +/- 101.0 ppm Washoe Co.: Pb= 19.3 +/- 16.5 ppm Uinta Co.: Pb= 19.6 +/- 3.1 ppm Weber Co.: Pb= 439.0 +/- 620.3 ppm Morgan Co.: Pb= 26.8 +/- 32.7 ppm Summit Co.: Pb= 14.8 +/- 5.1 ppm Lassen Co.: Pb= 14.0 +/- 2.3 ppm Davis Co.: Pb= 55.3 +/- 55.3 ppm Tooele Co.: Pb= 30.8 +/- 48.3 ppm Routt Co.: Pb= 21.8 +/- 4.4 ppm Moffat Co.: Pb= 23.6 +/- 5.1 ppm Daggett Co.: Pb= 14.8 +/- 3.4 ppm Lander Co.: Pb= 26.5 +/- 20.3 ppm Eureka Co.: Pb= 28.4 +/- 41.3 ppm Pershing Co.: Pb= 22.2 +/- 10.4 ppm Salt Lake Co.: Pb= 295.9 +/- 369.5 ppm Uintah Co.: Pb= 20.1 +/- 4.5 ppm Duchesne Co.: Pb= 14.1 +/- 3.8 ppm Wasatch Co.: Pb= 12.2 +/- 5.7 ppm Utah Co.: Pb= 41.7 +/- 69.9 ppm Tehama Co.: Pb= 17.6 +/- 6.0 ppm Plumas Co.: Pb= 13.3 +/- 4.0 ppm Rio Blanco Co.: Pb= 22.8 +/- 11.4 ppm Butte Co.: Pb= 15.2 +/- 5.9 ppm White Pine Co.: Pb= 24.7 +/- 14.4 ppm Garfield Co.: Pb= 21.2 +/- 2.7 ppm Juab Co.: Pb= 23.1 +/- 4.0 ppm Churchill Co.: Pb= 22.4 +/- 7.6 ppm Mendocino Co.: Pb= 14.2 +/- 8.6 ppm Eagle Co.: Pb= 29.6 +/- 12.5 ppm Carbon Co.: Pb= 15.8 +/- 2.2 ppm Sanpete Co.: Pb= 18.4 +/- 4.0 ppm Glenn Co.: Pb= 12.3 +/- 2.3 ppm Sierra Co.: Pb= 14.4 +/- 5.0 ppm Lyon Co.: Pb= 27.5 +/- 7.3 ppm Emery Co.: Pb= 16.2 +/- 2.7 ppm Yuba Co.: Pb= 15.5 +/- 2.8 ppm Storey Co.: Pb= 30.6 +/- 20.7 ppm Lake Co.: Pb= 30.1 +/- 23.1 ppm Millard Co.: Pb= 20.7 +/- 3.9 ppm Nevada Co.: Pb= 17.4 +/- 4.4 ppm Grand Co.: Pb= 19.1 +/- 2.6 ppm Colusa Co.: Pb= 13.2 +/- 2.2 ppm Mesa Co.: Pb= 20.2 +/- 3.9 ppm Pitkin Co.: Pb= 39.7 +/- 24.5 ppm Placer Co.: Pb= 25.3 +/- 9.9 ppm Sutter Co.: Pb= 19.8 +/- 6.6 ppm Gunnison Co.: Pb= 49.7 +/- 51.1 ppm Carson City Co.: Pb= 47.1 +/- 8.6 ppm Delta Co.: Pb= 26.6 +/- 4.6 ppm Nye Co.: Pb= 31.7 +/- 55.3 ppm Douglas Co.: Pb= 32.9 +/- 9.1 ppm Mineral Co.: Pb= 33.9 +/- 12.4 ppm El Dorado Co.: Pb= 34.2 +/- 11.1 ppm Sevier Co.: Pb= 23.5 +/- 13.4 ppm Alpine Co.: Pb= 38.0 +/- 11.5 ppm Yolo Co.: Pb= 23.4 +/- 21.7 ppm Napa Co.: Pb= 22.9 +/- 14.4 ppm Sonoma Co.: Pb= 17.9 +/- 8.5 ppm Sacramento Co.: Pb= 84.4 +/- 66.2 ppm Mono Co.: Pb= 30.9 +/- 9.8 ppm Amador Co.: Pb= 45.3 +/- 17.4 ppm Lincoln Co.: Pb= 45.7 +/- 111.7 ppm Montrose Co.: Pb= 20.4 +/- 4.7 ppm Beaver Co.: Pb= 27.1 +/- 9.3 ppm Solano Co.: Pb= 35.2 +/- 22.9 ppm Piute Co.: Pb= 30.8 +/- 11.9 ppm Wayne Co.: Pb= 15.7 +/- 3.3 ppm Calaveras Co.: Pb= 30.8 +/- 11.2 ppm San Juan Co.: Pb= 16.9 +/- 11.0 ppm Esmeralda Co.: Pb= 29.6 +/- 4.7 ppm Saguache Co.: Pb= 42.3 +/- 48.5 ppm Tuolumne Co.: Pb= 22.6 +/- 10.6 ppm Ouray Co.: Pb= 239.0 +/- 455.8 ppm Marin Co.: Pb= 104.3 +/- 252.8 ppm San Joaquin Co.: Pb= 27.2 +/- 11.5 ppm San Miguel Co.: Pb= 46.1 +/- 105.5 ppm Garfield Co.: Pb= 18.2 +/- 4.8 ppm Iron Co.: Pb= 24.8 +/- 5.2 ppm Hinsdale Co.: Pb= 270.0 +/- 506.3 ppm Contra Costa Co.: Pb= 88.7 +/- 162.3 ppm Stanislaus Co.: Pb= 19.8 +/- 5.8 ppm Mineral Co.: Pb= 34.1 +/- 8.7 ppm San Juan Co.: Pb= 1123.1 +/- 1405.5 ppm San Francisco Co.: Pb= 1007.3 +/- 164.2 Alameda Co.: Pb= 157.8 +/- 325.8 ppm Mariposa Co.: Pb= 19.0 +/- 9.3 ppm Dolores Co.: Pb= 25.8 +/- 9.1 ppm Rio Grande Co.: Pb= 30.9 +/- 11.4 ppm Madera Co.: Pb= 20.9 +/- 10.6 ppm San Mateo Co.: Pb= 193.4 +/- 181.1 ppm La Plata Co.: Pb= 32.6 +/- 14.0 ppm Montezuma Co.: Pb= 20.7 +/- 7.0 ppm Merced Co.: Pb= 16.4 +/- 5.1 ppm Washington Co.: Pb= 21.3 +/- 5.6 ppm Fresno Co.: Pb= 23.2 +/- 14.4 ppm Kane Co.: Pb= 15.6 +/- 4.1 ppm Santa Clara Co.: Pb= 20.9 +/- 9.9 ppm Inyo Co.: Pb= 36.1 +/- 40.9 ppm Archuleta Co.: Pb= 26.1 +/- 3.5 ppm Conejos Co.: Pb= 26.8 +/- 4.6 ppm Santa Cruz Co.: Pb= 21.5 +/- 17.0 ppm Navajo Co.: Pb= 17.8 +/- 4.4 ppm Coconino Co.: Pb= 17.3 +/- 4.1 ppm Mohave Co.: Pb= 48.8 +/- 148.2 ppm Rio Arriba Co.: Pb= 22.4 +/- 6.8 ppm San Juan Co.: Pb= 35.1 +/- 45.2 ppm Apache Co.: Pb= 23.2 +/- 9.8 ppm San Benito Co.: Pb= 19.0 +/- 4.6 ppm Monterey Co.: Pb= 23.8 +/- 12.5 ppm Clark Co.: Pb= 24.8 +/- 17.9 ppm Tulare Co.: Pb= 20.5 +/- 10.7 ppm Kings Co.: Pb= 16.3 +/- 3.9 ppm Sandoval Co.: Pb= 22.5 +/- 3.3 ppm McKinley Co.: Pb= 20.2 +/- 3.0 ppm Los Alamos Co.: Pb= 26.9 +/- 3.3 ppm San Bernardino Co.: Pb= 39.9 +/- 99.5 pp Kern Co.: Pb= 20.2 +/- 7.5 ppm San Luis Obispo Co.: Pb= 26.1 +/- 32.1 p Yavapai Co.: Pb= 29.7 +/- 68.7 ppm Cibola Co.: Pb= 18.9 +/- 2.5 ppm Bernalillo Co.: Pb= 23.6 +/- 3.8 ppm Santa Barbara Co.: Pb= 15.4 +/- 4.2 ppm Torrance Co.: Pb= 23.7 +/- 10.3 ppm Valencia Co.: Pb= 23.3 +/- 2.8 ppm Ventura Co.: Pb= 18.2 +/- 12.1 ppm Los Angeles Co.: Pb= 50.5 +/- 68.9 ppm Catron Co.: Pb= 27.0 +/- 6.3 ppm Socorro Co.: Pb= 55.1 +/- 141.1 ppm Gila Co.: Pb= 39.3 +/- 50.4 ppm Lincoln Co.: Pb= 21.0 +/- 5.2 ppm La Paz Co.: Pb= 24.2 +/- 17.6 ppm Santa Barbara Co.: Pb= 15.4 +/- 4.2 ppm Riverside Co.: Pb= 21.5 +/- 14.3 ppm Maricopa Co.: Pb= 25.2 +/- 13.4 ppm Orange Co.: Pb= 56.1 +/- 55.4 ppm Greenlee Co.: Pb= 31.4 +/- 4.2 ppm Graham Co.: Pb= 691.8 +/- 1298.8 ppm Los Angeles Co.: Pb= 50.5 +/- 68.9 ppm San Diego Co.: Pb= 16.4 +/- 11.3 ppm Sierra Co.: Pb= 30.8 +/- 25.0 ppm Pinal Co.: Pb= 48.7 +/- 100.2 ppm Yuma Co.: Pb= 19.2 +/- 3.0 ppm Imperial Co.: Pb= 16.6 +/- 8.0 ppm Otero Co.: Pb= 20.5 +/- 3.9 ppm Ventura Co.: Pb= 18.2 +/- 12.1 ppm Grant Co.: Pb= 54.4 +/- 289.0 ppm Los Angeles Co.: Pb= 50.5 +/- 68.9 ppm Dona Ana Co.: Pb= 21.2 +/- 7.7 ppm Hidalgo Co.: Pb= 33.3 +/- 21.0 ppm Luna Co.: Pb= 31.1 +/- 27.1 ppm Pima Co.: Pb= 41.6 +/- 25.9 ppm Cochise Co.: Pb= 34.0 +/- 6.3 ppm El Paso Co.: Pb= 35.7 +/- 17.7 ppm Hudspeth Co.: Pb= 22.8 +/- 4.9 ppm Santa Cruz Co.: Pb= 45.6 +/- 13.8 ppm

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