Air Toxics – Non-Cancer Risk by Census Tract

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Layer displays the modeled non-cancer risk associated with air toxics exposure. A hazard index (HI) of 1 or lower means air toxics are unlikely to cause adverse noncancer health effects over a lifetime of exposure.

Outstanding State Resource Water – Watersheds

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This feature class contains watersheds associated with Missouri’s use designations for waters listed in Table E – Outstanding State Resource Waters of the Water Quality Standards rule published in the Missouri Code of State Regulations, 10 CSR 20-7.031, on January … Continued

303d Lakes

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This data set contains Missouri’s 2016 Section 303(d) Listed Waters – Rivers and Streams and is a list of certain impaired waters in the State of Missouri. The list is a requirement of the Federal Clean Water Act and is … Continued

Outstanding National Resource Waters

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This feature class contains Missouri’s Outstanding National Resource Waters listed in Table D of the Water Quality Standards rule as published in the Code of State Regulations on May 31, 2012. Water quality standards are not enforceable by state law … Continued

Outstanding Resource Waters – Marshes

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This feature class contains Missouri’s Outstanding State Resource Waters – Marshes listed in Table E of the Water Quality Standards rule as published in the Code of State Regulations on May 31, 2012. Water quality standards are not enforceable by … Continued

Outstanding Resource Waters – Streams

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This feature class contains Missouri’s Outstanding State Resource Waters – Rivers and Streams listed in Table E of the Water Quality Standards rule as published in the Code of State Regulations on May 31, 2012. Water quality standards are not … Continued