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They are the former dip tank, seven underground storage tanks, the sulfuric acid spills/overfills, and a stained area.
The former dip tank has no evidence of a spill or release during the October 2009 RCRA site visit or during a WVDEP or EPA file review.
For the seven underground storage tanks, no information was found in files reviewed indicated a release from these tanks or any sampling activities relating to their removal.
There was a release of sulfuric acid in April 1994. The facility reported the spill to the National Response Center and neutralized the spill with soda ash; no confirmatory samples were collected. A second sulfuric acid release occurred in July 1990. Soil sampling was recommended in May 1994 but there is no evidence in the files that this sampling was ever completed.
There was an area of black staining observed on the ground near the pre-treatment plant (one of the SWMU). The source or cause of this staining could not be determined during the 2009 RCRA site visit.
Under waste management, the EPA lists 37 solid waste management units:
These include a container storage, former baghouse dust storage, former nitric-HF tank, waste holding, spent acid tank system, neutralization tank, former west tailing pond, three former lagoons, former landfill, waste pile, hydraulic oil recycling unit, multi-hearth roasting furnace area, former barium chloride area, existing west tailing pond, dewatering filter press, reslurry tank, multi-hearth furnace, equalization tank, picking rinsewater pre-treatment plants, equalization tank, reaction tank, clarifier, three sludge dewatering tank, satellite accumulation areas, pre-treatment plant, former strip mill/current spent acid tank, former electro plating tanks, sludge holding tank, former temporary sludge holding tank, trash dumpsters, parts washer, equipment boneyard, and vacuum truck washer area.
EDITOR'S NOTE: Although no data is contained on the former nitric HF tank, a description of the Portsmouth Gaseous Diffusion Plant --- where a contaminated portion of the Huntington uranium/nickel carbonyl processing plant are buried --- does detail HF and by products.
"Wet atmospheric air continuously leaks into the cascade past the compressor seals and through cracks and pinholes that sometimes develop. UF6 reacts with the moisture in the air to form gaseous hydrogen fluoride (HF) and uranyl fluoride (UO2F2) which is solid at operating temperatures. This material settles out and degrades cascade efficiency.
It also poses a uranium accountability problem as the material appears to be lost. A third
concern is the possibility of a nuclear criticality incident if the material is allowed to collect in the
process equipment. In order to recover this uranium, fluorine and/or chlorine trifluoride are
introduced to remove these uranium deposits. Nitrogen and oxygen from the inleaked air are also
present. The process coolant, R-114, also leaks into the cascade. Nitrogen and/or dry air are used
to provide a buffer between the cascade and the atmosphere. Some of the buffer gases also leaks
into the cascade. Due to the much lower molecular weights of these substances, they flow rapidly
to the top cells of the cascade where they block the upflow of UF6 process gas unless they are
- Region III EPA Update on INCO (97.12 KB)