Applicability

Applicability. (1) Except as provided under subs. (3) , (4) , and (5) , this chapter applies to dental dischargers. (2) Unless otherwise designated by the control authority, a dental discharger subject to this chapter is not a significant industrial user as defined under ch. NR 211 , and is not a categorical industrial user or industrial user subject to categorical pretreatment standards as those terms and variations are used under ch. NR 211 , as a result of applicability of this rule. (3) This chapter does not apply to a dental discharger that exclusively practices one or more of the following dental specialties: (a) Oral pathology. (b) Oral and maxillofacial radiology. (c) Oral and maxillofacial surgery. (d) Orthodontics. (e) Periodontics. (f) Prosthodontics. (4) This chapter does not apply to wastewater discharges from a mobile unit operated by a dental discharger. (5) This chapter does not apply to a dental discharger that does not discharge any amalgam process wastewater to a POTW, such as a dental discharger that collects all amalgam process wastewater for transfer to a centralized waste treater as defined under s. NR 211.03 (2e) . (6) A dental discharger that does not place dental amalgam and does not remove dental amalgam except in limited emergency or unplanned, unanticipated circumstances, and that certifies such to the control authority in a one-time compliance report as required under s. NR 229.05 is exempt from any further requirements of this chapter.