Wednesday, May 30, 2018

US Nitrogen Makes Massive Filing


By Walter F. Roche Jr.

US Nitrogen has filed a massive response to a series of questions raised by Tennessee regulators as part of the Greene County chemical firm's application to renew a key permit.
The filing earlier this month includes a 15-page letter from US Nitrogen Plant Manager Andrew Velo plus a series of attachments pushing the total filing to 195-pages.
The filing represents the second response by the chemical firm to a critical initial response to the permit renewal application. The first response was laced with criticism of the TDEC filing and disputed TDEC's findings on several counts.
In the latest response. US Nitrogen gave a point-by-point response to the TDEC questions and included much of the data the state had been seeking.
"There are no uncontrolled routine emissions from the ammonia storage and loading operations," Velo wrote in response to one TDEC question.
The company, a subsidiary of explosives manufacturer Austin Powder, said it had some answers to the regulators questions, but would need further research to answer others.
Responding to one question Velo acknowledged that the company had been unable to find documentation of data that was used in 2013.
In response to another question, Velo wrote that the company did not intend to exceed the production of 376 tons of 100 per cent nitric acid per day although the plant technically could produce up to 600 tons a day.
"In the future US Nitrogen can foresee operating at a rate of up to 600 tons per day of 100 per cent nitric acid," Velo wrote.
Other questions addressed include the output of aa steam generating boiler and the volume of ammonia to be produced on two ammonia trains.
The company also disclosed in a separate filing that it has once again appointed a new environmental manager.

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