Section 1: Regulatory Requirements
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Section 1: Regulatory Requirements
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This is a summary of Colorado Department of Public Health and Environment Water Quality Control Commission Regulation No. 81, Confined Animal Feeding Operations Control Regulation. The entire text of the regulation can be found on the internet at: http://www.cdphe.state.co.us/op/regs/waterregs/100281confinedanimalfeedingregs.pdf
Other regulations are also available at: http://www.cdphe.state.co.us/regulate.asp.
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Sections:
What you need for this section
Regulatory Requirements
Are you an AFO?
Calculating animal units
Are you a CAFO?
Swine operations
What you need for this section
Section 1 Form: This can be viewed below by clicking on the section headings above. If you would like to download the form to print and fill out by hand, please use the PDF version. The PDF version is available from the link at the top of the page.
1)What type of livestock do you raise?
2)Are your livestock confined for 45 days or longer in any 12 month perion?
_____Yes ____No
3)Is there no crop or forage growth in the confinement area?
_____Yes ____No
4) If you answered 'yes' to both questions 2 and 3, you have an animal feeding operation (AFO).
About AFO's:
a) All AFOs are expected to develop and follow Comprehensive Nutrient Management Plans (CNMPs). This expectation comes from the USDA/EPA Unified National Strategy for Animal Feeding Operations, not from the state of Colorado.
b) All AFOs must use Best Management Practices (BMPs) to protect state waters and use manure in a beneficial way. There are a wide variety of BMPs with the following purposes:
- divert clean surface water away from feedlot pens
- decrease open lot surface area
- decrease water volume
- decrease the potential for feedlot runoff to enter state waters
- decrease the potential for solids to enter state waters
- protect groundwater
5) How many of each type of livestock do you have on average at any one time (fill in Columns A and B)?
| A. Livestock Type |
B. Number of Head | C. Animal Units Equivalency Factor (see table below) |
D. Animal Units |
|---|---|---|---|
| Total |
Calculate how many animal units you have by multiplying the number of head by the animal unit equivalency factor (fill in Column C using the table below) for each livestock type and then totaling the animal units (Column D).
| Livestock Type | Animal Unit Equivalency Factor |
|---|---|
| Slaughter and Feed Cattle | 1.0 |
| Horses | 1.0 |
| Mature Dairy Cattle | 1.4 |
| Swine (>55 lb.) | 0.2 |
| Sheep | 0.2 |
| Turkeys | 0.02 |
| Chickens (broiler or layer) | 0.01 |
For young stock, less than 50% of adult weight, reduce the above equivalency factor by 1/2.
6) Do you have 1000 or more animal units?
___ Yes ___ No
About CAFOs:
a) If you have 1000 or more animal units and are an AFO, you are classified as a Concentrated Animal Feeding Operation (CAFO) and these requirements apply. Be aware that new CAFOs may be required to acquire a Special Use Permit from the county before the operation is constructed.
- CAFOs must contain runoff from the pens.
- If you have a CAFO which was built before 1974, you must contain runoff from a 10-year 24-hour storm.
- If you have a CAFO which was built after 1974, you must contain runoff from a 25-year 24-hour storm.
- If you have a CAFO built before 1974, and the operation either changed ownership or increased its working capacity after 1974, you must contain runoff from a 25-year 24-hour storm.
- CAFOs must maintain seepage rates from storage structures at < 1/32 inch/day for process wastewater or < 1/4 inch/day for runoff.
- Neither process wastewater retention structures nor manure stockpiles can be located within a 100-year flood plain.
- A minimum of 2 feet of freeboard must be maintained in storage structures.
- If the storage structure was built after 1992, the CAFO must have evidence that the structure's liner meets regulatory seepage requirements.
- Manure must be land applied according to one of three formulas for agronomic rate.
- All new or expanded CAFOs must submit a Manure and Wastewater Management Plan to the Colorado Department of Public Health and Environment, Water Quality Control Division (WQCD) for review.
b) If your operation discharges, or will discharge, wastewater or manure off-site for any reason other than having received a 25-year, 24-hour storm event (such as a chronic storm event), it should hold a discharge permit issued by the state's WQCD.
7) Is your operation capable of housing 800,000 pounds or more of live animal weight of swine at any one time?
___ Yes ___ No
If yes, then the operation is classified as a Housed Commercial Swine Feeding Operation (HCSFO). HCSFOs are required to hold individual discharge permits issued by the state's WQCD, and must comply with specific regulations that are separate from those presented above.