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Nez Perce Tribe

Nez Perce Tribe. ERWM Program, Air Quality Project. Nez Perce Reservation. Location: North Idaho, along the Clearwater River Topography: river valleys and plateau/prairie Two major highways: U.S. 12 & U.S.95 761,000 acres; 1,189 square miles Predominately agriculture and forested lands

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Nez Perce Tribe

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  1. Nez Perce Tribe ERWM Program, Air Quality Project

  2. Nez Perce Reservation • Location: North Idaho, along the Clearwater River • Topography: river valleys and plateau/prairie • Two major highways: U.S. 12 & U.S.95 • 761,000 acres; 1,189 square miles • Predominately agriculture and forested lands • Covers sections of five different counties • Tribal population: 9%; 1,600; Total Reservation population: 17,800 • Tribe and/or members own 93,940 acres 12.3% • [Lewiston/Clarkston population: 50,000]

  3. 2001 Emission Inventory • Prepared by contractor 2002 • ITEP, Joe Cain QA/QC check data 2006 • Common problems included assumptions for throughput, incorrect EFs • Fugitive dust from mobile sources - VMT • Submit to 2002 NEI • Mobile source issue figured out

  4. Agriculture emissions Cultivated land ~ 70% of reservation Wheat based, winter wheat predominates, peas, spring cereal, canola, mustards, bluegrass seed Burning, harvesting, tillage, storage Fertilization (25,000 tons N) Aerial and ground spraying - pesticides

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