Permit
- Webpage
WPDES permit application materials, instructions, reporting & compliance documents
View required application materials if you are a proposed Concentrated Animal Feeding Operation (CAFO) applying for the first time for a WPDES permit or you are an existing CAFO applying for a renewal of your WPDES permit.Preliminary and final…
- Webpage
Reissuance or modification of CAFO WPDES permits
At least 180 days prior to the expiration of your current WPDES permit for a CAFO, you are required to submit a complete reissuance application to the Department of Natural Resources (DNR). Before submitting your reissuance application, please…
- Webpage
Kinnard Farms Inc. CAFO Permit
Kinnard Farms LLC is an existing Concentrated Animal Feeding Operation in Kewaunee, WI. Kinnard Farms is owned and operated by Lee Kinnard. As of January of 2025, Kinnard Farms has 9,150 milking and dry cows (12,840 animal units) Kinnard Farms…
- Webpage
First-time CAFO WPDES permit applications
If your operation has 1,000 animal units (AU), your operation is a Concentrated Animal Feeding Operation (CAFO) and you must obtain a Wisconsin Pollutant Discharge Elimination Permit (WPDES) from the Department of Natural Resources.
- Webpage
BOD Toxicity
Sample toxicity Often referred to as "sliding" BODs BOD decreases as sample volume increases (i.e., less dilute) Occurs frequently in systems receiving industrial waste Amounts to killing off (or severe shock to) "the bugs" Results in under-…
- Webpage
BOD seed
Seed preparation and addition De-ionized water kills - Adding a seed capsule to deionized water causes an osmotic imbalance that will kill seed organisms. The purified water —containing no salts— rushes across the bacterial cell walls. The bacteria…
- Webpage
BOD resources
Websites Field Training Manual for Laboratory Analysts: Chapter 7 - BOD Biochemical Oxygen Demand Source: http://home.windstream.net/mikeric/Chap1to9/Chap7%20Biochemical%20Oxygen%20Demand.htm-->
- Webpage
BOD quality control
Limit of detection (LOD) BOD detection limits are theoretically based. A key assumption which the concept of detection for BOD is based is that the LEAST amount of depletion allowable is 2 mg/L. The LOD is also based on the highest volume of sample…
- Webpage
BOD sample pre-treatment
Because the BOD test is a bioassay, it is critical to maintain optimal conditions for the "bugs" (bacteria and other microorganisms) to remain viable. Temperature, pH, oxygen levels and the presence of disinfectants can all influence the outcome of…