R 299.9311 Recordkeeping for small and large quantity generators.

Rule 311. (1) Small and large quantity generators shall keep records supporting the hazardous waste determinations made under R 299.9302 for not less than 3 years from the date that the waste was last sent to on-site or off-site treatment, storage, or disposal. The records must include all the following information: (a) The type of waste and the source or process from which it was produced. (b) The chemical composition and properties of the waste and the anticipated fluctuations in its chemical composition and properties. (c) The results of any tests, sampling, waste analyses, or other determinations made under R 299.9302. (d) Records documenting the validity and relevance of the tests, sampling, and analytical methods used, including all the following information: (i) The sampling procedure and the reasons for determining that the sample is representative of the waste. (ii) The accuracy and precision of any tests conducted. (e) The knowledge basis for the generator’s determination if testing, sampling, and waste analyses were not conducted. (2) A small or large generator that is requested by the director to submit any of the information in subrule (1) of this rule shall provide the required information within 30 days after receipt of the request. (3) Small and large quantity generators shall keep a copy of each manifest signed under R 299.9309 for 3 years or until the small or large quantity generator receives a signed copy from the designated facility that received the waste. This signed copy must be retained as a record for not less than 3 years from the date the waste was accepted by the initial transporter. (4) A large quantity generator shall keep a copy of the data submitted under R 299.9312(1), exception report, or other report required by the director, or the director’s designee, for a period of not less than 3 years from the due date of the report. (5) Small and large quantity generators shall keep the documentation required under R 299.9503(1)(i)(ix) for not less than 3 years from the date that the waste was treated. (6) Small and large quantity generators shall keep the documentation required under R 299.9213(5) for not less than 3 years. (7) Small and large quantity generators shall keep documentation of all records required under R 299.9306 and R 299.9307, respectively, for not less than 3 years and make the records readily available to the department on request. (8) The periods of retention referred to in this rule are extended automatically during any unresolved enforcement action regarding the regulated activity or as requested by the director.