Permit
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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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Calibration & barometric pressure
Pressure adjustments Typically, any barometric pressure measurement that you hear (radio, TV) represents a value that has been corrected to a value relative to sea level. Why is this? For one thing, it's a means of standardizing data. Barometric…
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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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What to look for when purchasing a property
There are many issues to consider when purchasing a property. Depending on the size and scope of the property, and the final plans for use of the land and/or buildings, a new owner may run into multiple programs within the DNR that have rules…
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Construction and long term storm water management
This page was designed to show some methods used to control erosion before, during and after construction and to review some long term storm water management methods installed prior to your business operations. Before reading the following essay,…
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Air pollution basics
The air we breathe should be primarily oxygen and nitrogen with just a few other chemicals thrown in from natural sources. Modern life and all the vehicles and industrial activities that come with it have added a large number of additional chemicals…
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Air permit types for small businesses
Certain regulations are enacted to minimize the amount of pollution present in the air we breathe. For Wisconsin, both the U.S. Environmental Protection Agency and the state Department of Natural Resources implement and enforce a range of air…
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Air permit exemptions
New facilities, or construction projects at existing facilities, with low air pollution emissions may be exempt from air pollution permits. This may apply to small facilities or small changes at larger facilities. Even if a facility is eligible for…
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Permits review
To implement the diversion of Lake Michigan water to the city of Waukesha (Waukesha), Waukesha must obtain all required federal, state and local permits and approvals. Waukesha has decided to obtain Lake Michigan water from the Milwaukee Water…