Proposed State of MD.TMDL Plan

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Once the TMDL (Total Maximum Daily Load) is established for each segment, the MDE should send out a questionnaire to each and every landowner in the segment asking them   the following:

1. Verify the total property size in acres?

NUTRIENTS

1. How much nitrogen fertilizer have you applied in each of the last 3 years?

2. How much phosphorous fertilizer have you applied each of the last 3 years?

3. How much manure have you applied to your land each of the last 3 years?

4. Animal CAFO,s- How many facilities and the number of animals processed yearly in each? Describe how the manure is currently managed?

SEDIMENT

1. How much of your land was tilled using a single crop rotation each of the last 3 years?

2. How much of your land was tilled using a 2 crop rotation each of the last 3 years?

3.How much of your land was tilled using 3 or more crops in yearly rotation?

4. How many acres of cover crops were planted each of the last 3 years?

5. How much of your land was in grass or pasture each of the last 3 years?

SEPTIC

1. How many septic systems  on the property and how many people use each?

The MDE will assign a maximum for each landowner for each of the pollutants based on the simple premise that a reduction in application will result in a lessening of intrusion into aquifers and surface water roughly equal to the reduction in application. The administration of sediment is based on the USDA research on the relationship between the percentage of live roots in the ground and crop rotation. (See Table 11.1 pg. 118 In USDA Sustainable Soils Management) A two crop corn and soybean rotation is rated at 32% while a pasture or lawn is rated at 100%.

The landowner can meet the established requirement either by reducing the application amount of a particular pollutant or by changing a portion of the property to a less intrusive farming system. A particularly effective way to reduce nutrient and sediment is to add pasture or forage to the rotation as suggested by Iowa State University researchers and research farmers.

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