US Nitrogen Seeks More Permit Exemptions

By Walter F. Roche Jr.

With one exemption request still pending, a Greene County chemical is asking Tennessee environmental officials to waive permitting requirements for the use of three 20,000 gallon tanks.
In a request sent this week to the Tennessee Department of Environment and Conservation, US Nitrogen said the tanks will be used to hold sump pump water. According to the applications the tanks will hold water with no more than 5 percent ammonium nitrate.
The application seeks to have the tanks exempted from permit requirements "due to insignificant emissions."
The requests come as TDEC already is considering another permit exemption for a 52,250 gallon tank US Nitrogen plans to use for the production of an ammonium and water solution. According to the recently submitted application the solution would be 57 percent ammonium nitrate and 43 percent water.
In the latest request US Nitrogen said the 20,000 gallon tanks will be 13.67 feet in diameter.
The applications do not indicate the relationship, if any, between the two requests.
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