Possible NAICS Codes
562111 – Solid Waste Collection
221320 – Sewage Treatment Facilities
238220 – Plumbing, Heating, and Air-Conditioning Contractors
332420 – Metal Tank (Heavy Gauge) Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
562219 – Other Nonhazardous Waste Treatment and Disposal
562991 – Septic Tank and Related Services