External Services
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Oxygen measurement techniques
DO Probe Electrochemical method: Composed of two metal electrodes in contact with supporting electrolyte and separated from the test solution by a gas permeable membrane. A constant voltage is placed across the cathode and anode. Oxygen diffuses…
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BOD dilution water
BOD dilution water nutrient solutions can be a source of contamination. If you prepare your own solution, make sure you store the phosphate buffer in a refrigerator. Discard any solution if it becomes cloudy or you observe any "chunks" floating in…
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DO meter calibration
Calibration of the DO meter is arguably the most critical aspect of BOD testing, since we measure the consumption of dissolved oxygen (DO). While calibration may be the center of the DO measurement universe, calibration is in turn impacted by both…
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BOD Basics
Five-day test The BOD test originated in the United Kingdom due to pollution in the London area along the Thames River. They found that sewage dumped in the Thames River took five days to reach the ocean, hence the five-day incubation period. The…
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Water overview
Clean water is vital for public health, a healthy environment and a strong economy. The Wisconsin Department of Natural Resources along with the U.S. Environmental Protection Agency, Army Corps of Engineers, counties and local municipalities all…
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Waste overview
Small businesses must follow rules regarding waste storage, transport, recycling and disposal. For more information on Waste regulations, go to the Waste program pages.
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Small Business Assistance team
The SBEAP reaches thousands of small businesses each year through meetings, speaking engagements, workshops and publications. Review our annual flyer that summarizes the reach of SBEAP during the previous calendar year. The program currently offers…
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Sustainability
Learn about how sustainable business practices can increase your bottom line, reduce your impact on the environment, and open up opportunities for your business. The resources below can help you get started.
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Industrial Storm Water Permit Transfer
In the event of a facility sale/transfer, the current owner and new owner should execute and submit a transfer of permit coverage per s. NR 216.31, Wis. Adm. Code. The notification shall be submitted by the new owner using the ePermitting system…