CNMP ENGINEERING EVALUATION
MANURE AND WASTEWATER HANDLING AND STORAGE

This element addresses the components and activities associated with the livestock production facility. Format of this evaluation can be a combination of paragraphs, sketches, charts, diagrams, photos, etc. as appropriate. PE seal shall be attached.
 

Inventory Worksheets

Complete CNMP Engineering Inventory Worksheet(s) (one for each facility).

Animal Units, Generated Manure Volume, and Storage Volume

1.     Calculate the number of Animal Units (AU) at each management unit.
2.     Calculate the Manure and Wastewater Production Volumes (current & expansion).
3.     Calculate the current duration of storage (days) for existing manure storage facilities.
4.     Document the fate of manure and wastewater that is not stored.
5.     Evaluate the Design Storage Volume and operating levels, for existing manure storage facilities.

Siting and Operation of Existing Facilities

1. Document siting effect of main livestock production site on neighbor’s property (odor, dust, and gaseous emissions). A qualitative odor assessment on neighboring residents may be used if applicable.
    

2. Evaluate all areas of livestock concentration (barnyards, feed lots, dry lots, exercise lots, etc.) for contaminated runoff leaving the area.
    

3. Evaluate all existing waste storage facilities.
   a. Evaluation of Existing Manure and Wastewater Storage Facilities:
   b. Evaluate all manure stacking areas used
    

4. Evaluate potential Feed Storage leachate (silage) pollution.
    

5. Evaluate Safety issues relating to waste storage facilities, barnyards, confined spaces, and feed storage areas.
    

6. Evaluate O&M plans of all areas of livestock concentration, waste storage facilities, manure transfer, manure stacking areas, and feed storage areas.

Siting and Sizing of Any Proposed Waste Storage Facilities

1. Evaluate the siting and sizing of any proposed waste storage facilities, concentrated live stock areas, and feed storage, using applicable standards.

Surface Water Runoff

1. Evaluate the effects of surface water runoff at the production facility and identified concentrated flow areas (erosion, ponding, flooding, etc).

Emergency Action Planning

1. Evaluate the response strategies for manure spills and catastrophic failure of the manure storage and transfer systems.
    

2. Forward recommendation to the emergency action plan author.

Alternative Manure and Wastewater Utilization Activities

(Implementation of alternative technologies is optional.)

1. Evaluate the potential for alternative technologies to address the identified resource concerns.
   a. Concentration of nutrients to produce alternative products, reduce water use, and reduce manure transportation costs.
   b. Minimize odors generated by the manure storage and land application activities.
   c. Treatment systems that capture energy or utilize manure carbon as a raw material to
    

Resource Concerns and Corresponding BMP Alternatives

1. Document any resource concerns identified by the evaluations.

2. Develop alternatives to address any identified resource concerns to assist the client with the decision making process. Multiple alternatives are often needed to address any one resource concern
   a. Provide a pre-design feasibility analysis with a pre-design cost estimate for all alternatives.
   b. Match the client’s goals and fit the site conditions.
   c. Comply with specific NRCS practice standards.
   d. Comply with applicable regulations.
   e. Shall be part of a system of conservation practices to address all identified risks associated with the livestock production operation.

Landowner Decision Making

1. Discuss resource concerns and all developed alternatives with the landowner.
    

2. Document landowner selected alternatives to the identified resource concerns.
    

3. Document agreed to planned implementation dates.
    

CNMP Organization

1. Coordinate information with CNMP writer.
   a. Inventory (CNMP Engineering Inventory Worksheet[s]).
   b. Evaluation (Evaluation Guide - Manure and Wastewater Handling and Storage)
   c. Plan Writing/Implementation (Resource concerns with selected alternatives to be included in CNMP Resource Concerns and Action Summary).