Here’s a detailed list of the information to be collected and documented during an on-site inspection:

Industry Name
Site Address
Correspondence Address
Contact Name, Title, and Phone Number
Year the Industry was Established on Site
Number of Employees per Shift
Applicable Standard Industrial Classification (SIC) codes
Schematic of the water flow through the industry, and the location of all wastewater discharge lines which flow to the POTW system; the schematic should also include the layout of major plant features
A description of each discharge (including any batch discharges) specifying the amount, chemical nature, frequency, and destination of each discharge
A description and process flow diagram of each major product line and process utilized within the plant, particularly processes which may be subject to Federal Categorical Pretreatment Standards
A detailed description and appropriate sketches of existing pretreatment facilities, including operating data, if available

A list of pollutants of interest at the plant. The list should be divided into two categories:

(1) pollutants that come in direct contact with the water that is discharged to the POTW and

(2) pollutants that do not come in direct contact but have a potential to enter the wastewater due to spills, machinery malfunctions or other similar problems

Identification of appropriate sampling locations

Availability of sampling results performed by the industry

Proximity of chemical storage to floor drains, and whether floor drains discharge to storm or sanitary sewers
A description of spill control practices the industry uses. Information about past spills, unusual discharges, or temporary problems with any of the process units that may affect the wastewater discharge should be included
A description of air pollution control equipment that may generate a waste stream, and the discharge or disposal method and location
A description of how waste residuals (solids) are handled, stored, and/or disposed of
A description of proposed, or recent changes to the industry’s processes that would affect the discharge characteristics or sampling locations
A description of any operational problems, or shutdowns of pretreatment facilities
 Identification of specific hazards, and establishment of procedures to ensure safety of POTW personnel while at the industrial facility

Industrial Inspection Program FAQs

The Industrial Inspection Program involves inspectors visiting industrial sites to gather information and ensure compliance with pretreatment standards and requirements.

It helps ensure that industries are following regulations to protect the environment and public health by properly treating wastewater before it is discharged into the public sewer system.

By ensuring that industries are compliant with pretreatment standards, it helps maintain water quality, reduces the risk of pollution, and protects the environment and public health.

Inspections are conducted by inspectors from the Publicly Owned Treatment Works — POTW — pretreatment facility.