The following Product Service Codes (PSCs) are commonly associated with NAICS 221320, Sewage Treatment Facilities

PSC S216 Housekeeping—Facilities Operations Support

Services
Federal Category 4.4: Facilities & Construction Facility Related Services

PSC H346 Inspection—Water Purification and Sewage Treatment Equipment

Services

PSC F108 Natural Resources/Conservation—Environmental Remediation

Services
Federal Category 4.4: Facilities & Construction Facility Related Services

Description
Hazardous Substance Removal, Cleanup, and Disposal Services and Operational Support

Includes
Includes: Toxic and Hazardous Substance Removal, Cleanup, and Disposal, Asbestos and Lead Abatement

Possible NAICS Codes
562910 – Remediation Services
562211 – Hazardous Waste Treatment and Disposal
562112 – Hazardous Waste Collection
541620 – Environmental Consulting Services
562111 – Solid Waste Collection
562213 – Solid Waste Combustors and Incinerators
562998 – All Other Miscellaneous Waste Management Services