Celebrating 40 years of taking care of Missouri’s natural resources. REGFORM – Missouri Water Seminar September 4, 2014 Numeric Nutrient Criteria John Hoke, Missouri DNR
Hoke, John, MDNR, Numeric Nutrient Criteria, Missouri Water Seminar, Sept.4-5, 2014, Columbia, MO
Dec 25, 2014
Where are we on numeric nutrient criteria for Lakes, in Missouri?
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Celebrating 40 years of taking care of Missouri’s natural resources.
REGFORM – Missouri Water Seminar
September 4, 2014
Numeric Nutrient Criteria
John Hoke, Missouri DNR
Celebrating 40 years of taking care of Missouri’s natural resources.
History of Numeric Nutrient Criteria in Missouri
• 2009 – Numeric nutrient criteria for lakes approved by Missouri Clean Water Commission, submitted to EPA
• 2011 – EPA disapproves most of the nutrient criteria portion of the rule
• 2014 – Department develops alternate nutrient criteria in response to EPA disapproval
Celebrating 40 years of taking care of Missouri’s natural resources.
Nutrient Criteria Protect Designated Uses
Chl-aTotal P
Total N
Celebrating 40 years of taking care of Missouri’s natural resources.
Nutrient Criteria Follow Ecoregions
Celebrating 40 years of taking care of Missouri’s natural resources.
Numeric Nutrient Criteria Schedule
• Regulatory Impact Report developed to estimate economic and environmental costs and benefits
• Proposed rulemaking will include public comment period and public hearing
• Rule to be effective 2015/2016
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