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Industrial Inspection Program

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The industrial inspection provides an excellent opportunity for POTW pretreatment facility inspectors to collect information about an industry, and evaluate its compliance with pretreatment standards and requirements. Presented below is a list of the information which should be collected and documented during an on-site inspection:

  1. The industry name.
  2. The site address.
  3. The correspondence address.
  4. The contact name, title and telephone number.
  5. The year the industry was established on site.
  6. The number of employees per shift.
  7. The applicable Standard Industrial Classification (SIC) codes.
  8. A 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.
  9. A description of each discharge (including any batch discharges) specifying the amount, chemical nature, frequency and destination of each discharge.
  10. 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.
  11. A detailed description and appropriate sketches of existing pretreatment facilities, including operating data, if available.
  12. 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.
  13. Identification of appropriate sampling locations.
  14. Availability of sampling results performed by the industry.
  15. Proximity of chemical storage to floor drains, and whether floor drains discharge to storm or sanitary sewers.
  16. 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.
  17. A description of air pollution control equipment that may generate a waste stream, and the discharge or disposal method and location.
  18. A description of how waste residuals (solids) are handled, stored and/or disposed.
  19. A description of proposed, or recent changes to the industry’s processes that would affect the discharge characteristics or sampling locations.
  20. A description of any operational problems, or shutdowns of pretreatment facilities.
  21. Identification of specific hazards, and establishment of procedures to ensure safety of POTW personnel while at the industrial facility.