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Waste Classification

Industrial wastes generators need to sample and analyze their wastes to determine chemical concentration levels and determine if their waste is not hazardous waste. If the waste is determined to be a non-hazardous waste, a waste classification is needed to determine proper disposal, unless they are disposed in a municipal or non-municipal solid waste landfill approved by IDEM. Waste must be characterized at the point of generation to determine the class type of the waste before disposing in a restricted waste site. Both laboratory analytical testing results and a generator's knowledge of the waste is used to ensure that they are not hazardous and to obtain a waste classification showing the waste type. Based on the chemical constituent concentration the waste is classified as Type I, Type II, Type III and Type IV. Restricted waste site criteria are specified in 329 IAC 10-9-4.

The complete waste determination documentation must be submitted along with that formal request. After review, the Industrial Waste Section will notify the applicant of the classification assigned to its waste(s). Each waste stream will receive a waste classification. One important requirement is keeping a current waste classification and monitoring any changes in the nature of the wastes being disposed of at the site. A new waste classification is needed whenever process changes that may alter the chemical composition of the waste.

The waste classification [PDF] are issued for a certain period of time based on the nature of waste and its variability. The schedule for re-sampling corresponds with the expiration of the waste classification. Waste Classification renewal requests must be submitted at least 60 days before the expiration date.

There is no fee associated with the waste classification process. Once IDEM receives all necessary information, a waste classification is usually issued within 60 days. Once the waste type is determined, the generator then may apply for the permit for the restricted waste site that corresponds with its waste classification. The generator must select a facility type that meets or exceeds the waste type. The decision on the best disposal option for your waste will be based on several factors:

  • Expected variability of the waste;
  • Cost of permitting; and,
  • Construction and operation costs of the restricted waste site.

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