Description
Other Quality Control, Testing and Inspection Services: Water Purification and Sewage Treatment Equipment

Possible NAICS Codes
221310 – Water Supply and Irrigation Systems
541380 – Testing Laboratories and Services
541620 – Environmental Consulting Services
541690 – Other Scientific and Technical Consulting Services
924110 – Administration of Air and Water Resource and Solid Waste Management Programs
561210 – Facilities Support Services
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
238220 – Plumbing, Heating, and Air-Conditioning Contractors
541990 – All Other Professional, Scientific, and Technical Services
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities