Federal Clean Water Act enacted in 1972 Missouri Began Issuing LOAs in mid 1970s NPDES Permit Applicability Debated Missouri CAFO Regulations: 4
Factoryfarm.org Missouri CAFO Regulations: In 1996 Missouri passed hog bill and CAFO regulations Required NPDES Permits in Missouri Precipitated by Large Farms Requirements for Large Farms Standards in Place Today 5
Issue NPDES Permits to CAFOs 1000 Animal Unit Threshold No Discharge Criteria Neighbor Notice Buffer Distances and Setbacks Design Criteria Best Management Practices Missouri CAFO Regulations: The Basics 6
Issue NPDES Permits to CAFOs Two Step Permitting: Construction and Operating General Permits Site-Specific Permits Missouri CAFO Regulations: 7
17 Nutrient Management Requirements: Planning: Nitrogen Rate Conservative Approach 100 lb. N/acre application Rate Plant Available Nitrogen Nitrogen rate based upon plant needs
Basic PAN Calculation: Crop Nitrogen Needs considers both the net crop nitrogen requirement and the residual soil nitrogen. Manure Nitrogen Contribution considers the manure nitrogen availability and loss.
19 Nutrient Management Requirements: Planning: Phosphorous General Permits - No Phosphorous Requirement Individual Permits - Phosphorous Requirement Soil Test Phosphorous Limit of 120 lb. P / acre Future - All permits will require phosphorous assessment.
20 Nutrient Management Requirements: Planning: Manure and Soil Testing General Permits - Manure and Soil Test Required for PAN Approach Individual Permits - Annual Manure Test and Soil Tests Every 3 Years Required Future - All permits will require annual manure testing and soil tests every five years.
21 Nutrient Management Requirements: Planning: Miscellaneous Land Area - Liquid systems and individual permits are typically required to identify land application area. Setbacks - Need to identify setback distances prior to land application. Timing - Days of storage and land application needs are generally assessed for adequacy.
22 Nutrient Management Requirements: Application Follow Plan and BMPs Select Appropriate Days – No Rain Within 24 Hours – No Frozen, Saturated or Snow Covered Soil – Monitor Wind Conditions Determine Rate Monitor for Runoff
23 Nutrient Management Requirements: Record Keeping: Why? Required for permittees To prove Agriculture Stormwater Exemption Optimize Yield
24 Nutrient Management Requirements: Record Keeping: Components Daily Log Non Owned Areas Transfers Rainfall Storage Levels Manure and Soil Test Results
25 Nutrient Management Requirements: Record Keeping: Reports Annual Reports Submitted to the Department in January of each year.