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

Lead in Counties of the Southwestern US

Fremont Co.: Pb= 22.9 +/- 4.4 ppm Lincoln Co.: Pb= 20.1 +/- 3.6 ppm Carbon Co.: Pb= 21.4 +/- 7.6 ppm Sweetwater Co.: Pb= 25.6 +/- 4.2 ppm Elko Co.: Pb= 26.8 +/- 14.5 ppm Rich Co.: Pb= 17.4 +/- 1.2 ppm Box Elder Co.: Pb= 35.3 +/- 61.8 ppm Humboldt Co.: Pb= 20.3 +/- 5.6 ppm Cache Co.: Pb= 137.3 +/- 183.5 ppm Washoe Co.: Pb= 19.2 +/- 15.8 ppm Uinta Co.: Pb= 19.9 +/- 2.9 ppm Weber Co.: Pb= 501.2 +/- 608.4 ppm Morgan Co.: Pb= 45.0 +/- 39.4 ppm Summit Co.: Pb= 18.1 +/- 4.6 ppm Lassen Co.: Pb= 13.9 +/- 2.2 ppm Davis Co.: Pb= 63.4 +/- 50.5 ppm Tooele Co.: Pb= 32.2 +/- 48.6 ppm Routt Co.: Pb= 21.8 +/- 4.1 ppm Moffat Co.: Pb= 23.7 +/- 4.8 ppm Daggett Co.: Pb= 14.9 +/- 3.3 ppm Lander Co.: Pb= 26.6 +/- 19.0 ppm Eureka Co.: Pb= 28.3 +/- 40.2 ppm Pershing Co.: Pb= 22.3 +/- 10.0 ppm Salt Lake Co.: Pb= 313.6 +/- 363.6 ppm Uintah Co.: Pb= 20.0 +/- 4.2 ppm Duchesne Co.: Pb= 17.3 +/- 4.0 ppm Wasatch Co.: Pb= 21.7 +/- 2.0 ppm Utah Co.: Pb= 69.6 +/- 108.6 ppm Tehama Co.: Pb= 17.6 +/- 5.7 ppm Plumas Co.: Pb= 13.4 +/- 3.7 ppm Rio Blanco Co.: Pb= 22.7 +/- 10.8 ppm Butte Co.: Pb= 15.2 +/- 5.5 ppm White Pine Co.: Pb= 24.8 +/- 13.7 ppm Garfield Co.: Pb= 21.1 +/- 2.6 ppm Juab Co.: Pb= 23.0 +/- 3.7 ppm Churchill Co.: Pb= 22.2 +/- 7.2 ppm Mendocino Co.: Pb= 14.1 +/- 8.0 ppm Eagle Co.: Pb= 29.8 +/- 12.0 ppm Carbon Co.: Pb= 15.8 +/- 2.1 ppm Sanpete Co.: Pb= 18.4 +/- 3.7 ppm Glenn Co.: Pb= 12.4 +/- 2.2 ppm Sierra Co.: Pb= 14.4 +/- 4.7 ppm Lyon Co.: Pb= 27.5 +/- 7.1 ppm Emery Co.: Pb= 16.2 +/- 2.5 ppm Yuba Co.: Pb= 15.6 +/- 2.6 ppm Storey Co.: Pb= 30.2 +/- 20.3 ppm Lake Co.: Pb= 29.3 +/- 21.6 ppm Millard Co.: Pb= 20.8 +/- 3.7 ppm Nevada Co.: Pb= 17.7 +/- 3.9 ppm Grand Co.: Pb= 19.1 +/- 2.4 ppm Colusa Co.: Pb= 13.6 +/- 2.0 ppm Mesa Co.: Pb= 20.2 +/- 3.7 ppm Pitkin Co.: Pb= 39.5 +/- 23.1 ppm Placer Co.: Pb= 25.8 +/- 10.3 ppm Sutter Co.: Pb= 20.4 +/- 6.5 ppm Gunnison Co.: Pb= 50.0 +/- 49.2 ppm Carson City Co.: Pb= 46.5 +/- 8.4 ppm Delta Co.: Pb= 26.5 +/- 4.4 ppm Nye Co.: Pb= 31.7 +/- 52.4 ppm Douglas Co.: Pb= 33.0 +/- 8.8 ppm Mineral Co.: Pb= 33.7 +/- 11.6 ppm El Dorado Co.: Pb= 34.4 +/- 10.5 ppm Sevier Co.: Pb= 23.3 +/- 13.0 ppm Alpine Co.: Pb= 38.2 +/- 11.1 ppm Yolo Co.: Pb= 23.8 +/- 19.4 ppm Napa Co.: Pb= 24.2 +/- 15.4 ppm Sonoma Co.: Pb= 18.3 +/- 8.7 ppm Sacramento Co.: Pb= 81.2 +/- 61.2 ppm Mono Co.: Pb= 31.0 +/- 9.3 ppm Amador Co.: Pb= 44.9 +/- 16.3 ppm Lincoln Co.: Pb= 46.0 +/- 106.1 ppm Montrose Co.: Pb= 20.7 +/- 5.0 ppm Beaver Co.: Pb= 27.0 +/- 8.8 ppm Solano Co.: Pb= 35.8 +/- 22.2 ppm Piute Co.: Pb= 30.7 +/- 11.2 ppm Wayne Co.: Pb= 15.8 +/- 3.3 ppm Calaveras Co.: Pb= 30.6 +/- 10.9 ppm San Juan Co.: Pb= 16.7 +/- 9.8 ppm Esmeralda Co.: Pb= 29.6 +/- 4.4 ppm Saguache Co.: Pb= 42.4 +/- 45.4 ppm Tuolumne Co.: Pb= 22.8 +/- 10.2 ppm Ouray Co.: Pb= 240.8 +/- 390.9 ppm Marin Co.: Pb= 95.2 +/- 180.5 ppm San Joaquin Co.: Pb= 27.0 +/- 10.8 ppm San Miguel Co.: Pb= 49.3 +/- 101.9 ppm Garfield Co.: Pb= 18.2 +/- 4.5 ppm Iron Co.: Pb= 24.7 +/- 5.0 ppm Hinsdale Co.: Pb= 277.4 +/- 473.7 ppm Contra Costa Co.: Pb= 94.6 +/- 157.0 ppm Stanislaus Co.: Pb= 19.8 +/- 5.5 ppm Mineral Co.: Pb= 34.3 +/- 8.4 ppm San Juan Co.: Pb= 1054.6 +/- 1317.2 ppm San Francisco Co.: Pb= 863.3 +/- 100.9 p Alameda Co.: Pb= 154.2 +/- 313.4 ppm Mariposa Co.: Pb= 19.2 +/- 8.8 ppm Dolores Co.: Pb= 27.2 +/- 17.8 ppm Rio Grande Co.: Pb= 30.8 +/- 8.6 ppm Madera Co.: Pb= 21.0 +/- 10.1 ppm San Mateo Co.: Pb= 188.8 +/- 176.2 ppm La Plata Co.: Pb= 36.1 +/- 27.7 ppm Montezuma Co.: Pb= 20.7 +/- 6.8 ppm Merced Co.: Pb= 16.4 +/- 4.8 ppm Washington Co.: Pb= 21.4 +/- 5.3 ppm Fresno Co.: Pb= 23.2 +/- 13.7 ppm Kane Co.: Pb= 15.7 +/- 3.7 ppm Santa Clara Co.: Pb= 21.4 +/- 10.1 ppm Inyo Co.: Pb= 35.9 +/- 37.6 ppm Archuleta Co.: Pb= 26.2 +/- 3.3 ppm Conejos Co.: Pb= 27.2 +/- 4.5 ppm Santa Cruz Co.: Pb= 21.7 +/- 16.4 ppm Navajo Co.: Pb= 17.8 +/- 4.2 ppm Coconino Co.: Pb= 17.4 +/- 3.9 ppm Mohave Co.: Pb= 46.4 +/- 131.8 ppm Rio Arriba Co.: Pb= 22.8 +/- 7.1 ppm San Juan Co.: Pb= 34.6 +/- 42.4 ppm Apache Co.: Pb= 23.1 +/- 9.2 ppm San Benito Co.: Pb= 19.1 +/- 4.6 ppm Monterey Co.: Pb= 23.8 +/- 12.1 ppm Clark Co.: Pb= 25.1 +/- 17.2 ppm Tulare Co.: Pb= 20.7 +/- 10.3 ppm Kings Co.: Pb= 16.3 +/- 3.8 ppm Sandoval Co.: Pb= 22.5 +/- 3.1 ppm McKinley Co.: Pb= 20.3 +/- 2.8 ppm Los Alamos Co.: Pb= 26.7 +/- 3.0 ppm San Bernardino Co.: Pb= 40.0 +/- 94.7 pp Kern Co.: Pb= 20.2 +/- 7.2 ppm San Luis Obispo Co.: Pb= 26.3 +/- 31.5 p Yavapai Co.: Pb= 29.6 +/- 66.9 ppm Cibola Co.: Pb= 18.9 +/- 2.4 ppm Bernalillo Co.: Pb= 23.5 +/- 3.5 ppm Santa Barbara Co.: Pb= 15.6 +/- 4.0 ppm Torrance Co.: Pb= 23.6 +/- 8.7 ppm Valencia Co.: Pb= 23.3 +/- 2.6 ppm Ventura Co.: Pb= 18.4 +/- 11.3 ppm Los Angeles Co.: Pb= 49.7 +/- 64.4 ppm Catron Co.: Pb= 27.0 +/- 6.1 ppm Socorro Co.: Pb= 54.8 +/- 133.2 ppm Gila Co.: Pb= 39.0 +/- 48.6 ppm Lincoln Co.: Pb= 21.0 +/- 4.9 ppm La Paz Co.: Pb= 25.3 +/- 18.5 ppm Santa Barbara Co.: Pb= 15.6 +/- 4.0 ppm Riverside Co.: Pb= 22.0 +/- 14.1 ppm Maricopa Co.: Pb= 25.2 +/- 12.8 ppm Orange Co.: Pb= 54.4 +/- 51.0 ppm Greenlee Co.: Pb= 31.7 +/- 4.1 ppm Graham Co.: Pb= 669.3 +/- 1210.3 ppm Los Angeles Co.: Pb= 49.7 +/- 64.4 ppm San Diego Co.: Pb= 16.4 +/- 11.0 ppm Sierra Co.: Pb= 31.7 +/- 24.5 ppm Pinal Co.: Pb= 48.7 +/- 90.7 ppm Yuma Co.: Pb= 19.2 +/- 2.9 ppm Imperial Co.: Pb= 16.6 +/- 7.6 ppm Otero Co.: Pb= 20.6 +/- 3.6 ppm Ventura Co.: Pb= 18.4 +/- 11.3 ppm Grant Co.: Pb= 55.8 +/- 288.2 ppm Los Angeles Co.: Pb= 49.7 +/- 64.4 ppm Dona Ana Co.: Pb= 21.2 +/- 7.5 ppm Hidalgo Co.: Pb= 33.4 +/- 20.5 ppm Luna Co.: Pb= 31.2 +/- 26.4 ppm Pima Co.: Pb= 41.7 +/- 24.0 ppm Cochise Co.: Pb= 34.0 +/- 5.9 ppm El Paso Co.: Pb= 35.6 +/- 16.7 ppm Hudspeth Co.: Pb= 23.0 +/- 4.6 ppm Santa Cruz Co.: Pb= 46.0 +/- 13.0 ppm

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