Drinking and wastewater operation and treatment facilities are part the utilities sector (NAICS 22). Industries in this sector include water treatment plants, water supply systems, sewer systems, and/or sewage treatment facilities that collect, treat, and dispose of waste. 

Laws and Regulations

• Drinking Water Treatment Wastes
• Effluent Guidelines: Drinking Water Treatment Residuals Management
• Municipalities and Wastewater Treatment Plants
• NESHAP for Publicly Owned Treatment Works (POTW)
• Public Drinking Water Systems Programs
• Pretreament Program

Compliance

• Pretreatment of Wastewater (Industrial Users) Compliance Monitoring
• Small Systems and Capacity Development: Compliance Help
• Laboratories & Monitoring
• Protocol for Conducting Environmental Compliance Audits of Public Water Systems under the Safe Drinking Water Act (SDWA) (PDF) (3/1/00)

Enforcement

• Water Enforcement

Policy & Guidance

• Water Enforcement Policy, Guidance, and Publications