did a little research. roughly 20+ miles from Pittsfield in north adams is a bankrupt anodizing plant.
North Adams, MA Real Estate | MLS # 213178
possible this was the jobsite. cleanouts like this could be hazardous to your health, wealth and sanity if the bankrupt company left a few "environmental issues" in those tanks or pipes that needed to be scrapped.
"Safety
Operating an anodizing line is similar to operating aqueous cleaning, deburring and vibratory finishing tools. That said, anodizing uses hazardous chemicals so worker safety is paramount. The types of hazardous materials shops will need to purchase, use and store include sodium hydroxide, chromic acid (for Type I anodizing), sulfuric acid (for Type II and III anodizing), nitric acid, ferrous sulfate, nickel acetate and organic dyestuffs. Obviously employees should be outfitted with the proper protective gear. For information about handling these materials, shops should contact their state’s department of environmental quality.
In addition to hazardous chemicals, anodizing also generates hazardous waste. This includes diluted wastes such as rinse water and concentrated wastes from cleaner tanks that need to be removed."
source :
Bringing Anodizing In-House : Modern Machine Shop
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