By Walter F. Roche Jr.
Tennessee environmental regulators have agreed that the use of a 52,250 gallon tank to produce an ammonium nitrate solution is an insignificant activity and US Nitrogen does not need to get a permit.
In a letter sent today to US Nitrogen Plant Manager Dylan Charles, James Johnston of the Tennessee Department of Environment and Conservation wrote thatnthe agemcy agreed with US Nitrogen's conclusion that a permit would not be needed.
The company advised TDEC in March that it intended to use the existing tank to produce a 57 percent ammonium nitrate-water solutuion.
TDEC approval comes after US Nitrogen informed the state that it had submitted erroneous data when it submitted the initial request. Corrected data on estimated ammonium nitrate emissions were included.
It has been dtermined the 57 percent solution tank constitutes an insignificant activity or insignificant emissions unit," Johnston wrote in the two-page letter.
Johnston wrote that "Specifically this operation would result in potential emission from this source of less than five tons per year of each air contaminant...and less than 1,000 pounds per year of each hazardous air pollutant."
He added that the March 8 letter would meet the 30 day notification requirement in state law and regulations.
"All applicable air pollution regulations must be met by your facility," Johnston concluded.
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