NR 508.04 Responses when a groundwater standard is attained or exceeded at any groundwater monitoring well.

Ch. NR 508 NoteNote: Chapter NR 508 as it existed on June 30, 1996 was repealed and a new chapter NR 508 was created effective July 1, 1996. Corrections made under s. 13.93 (2m) (b) 7., Register, August, 1997, No. 500.

NR 508.01NR 508.01 Purpose. The purpose of this chapter is to establish procedures for responding to a groundwater standard that is attained or exceeded at any groundwater monitoring well at a solid waste facility and for conducting assessment monitoring at Subtitle D wells and CCR wells. This chapter is adopted under ch. 289, Stats., and s. 227.11, Stats.

NR 508.01 HistoryHistory: Cr. Register, June, 1996, No. 486, eff. 7-1-96; CR 21-076: am. Register July 2022 No. 799, eff. 8-1-22.

NR 508.02(1)(a)(a) Except as provided in par. (b) and except as otherwise provided, this chapter governs all environmental monitoring for solid waste disposal facilities as defined under s. 289.01 (35), Stats., including all CCR landfills and expansions.

NR 508.02(1)(b)1.1. Hazardous waste facilities as defined under s. 291.01 (8), Stats., and regulated under chs. NR 660 to 679.

NR 508.02(1)(b)2.2. Metallic mining operations for nonferrous minerals as defined under s. 293.01 (9), Stats., and regulated under ch. NR 182.

NR 508.02(1)(b)3.3. Metallic mining operations for ferrous minerals as defined under s. 295.41 (26), Stats., including mining wastes and mining waste sites as defined under s. 295.41 (30) and (31), Stats., and regulated under subch. III of ch. 295, Stats.

NR 508.02(2)(2) This chapter does not apply to the design, construction or operation of industrial wastewater facilities, sewerage systems and waterworks treating liquid wastes approved under s. 281.41, Stats., or permitted under ch. 283, Stats., nor to facilities used solely for the disposal of liquid municipal or industrial wastes which have been approved under s. 281.41, Stats., or permitted under ch. 283, Stats., except for facilities used for the disposal of solid waste.

NR 508.02 HistoryHistory: Cr., Register, June, 1996, No. 486, eff. 7-1-96; correction in (1) made under s. 13.93 (2m) (b) 7., Stats., Register March 2003 No. 567; correction in (1) made under s. 13.93 (2m) (b) 7., Stats., Register April 2013 No. 688; CR 13-057: am. (1) Register July 2015 No. 715, eff. 8-1-15; CR 21-076: renum. (1) to (1) (a) and (b) 1. to 3. and am., cr. (1) (b) (intro.) Register July 2022 No. 799, eff. 8-1-22.

NR 508.04NR 508.04 Responses when a groundwater standard is attained or exceeded at any groundwater monitoring well. If a PAL, ACL or ES is attained or exceeded at any groundwater monitoring well according to s. NR 140.14 and the value is confirmed, the owner or operator shall comply with subs. (1) and (2) and may be required, either by the department or under s. NR 508.05 (5), to comply with subs. (3) and (4).

NR 508.04(1)(1) The owner or operator shall notify the department in accordance with s. NR 507.30.

NR 508.04(2)(2) The owner or operator shall respond in accordance with s. NR 140.24 or 140.26.

NR 508.04(3)(3) If required by the department, the owner or operator shall develop a site investigation workplan and a site investigation report in accordance with ss. NR 716.05 to 716.11 and 716.15 to 716.17. If a site investigation report is submitted under s. NR 716.15, it shall include proof of financial responsibility to comply with s. NR 520.05 (1).

NR 508.04(4)(4) If required by the department, the owner or operator shall evaluate and select remedial action options and develop a remedial action options report in accordance with ch. NR 722. Any soil contamination shall be addressed in accordance with the requirements of ch. NR 720.

NR 508.04(5)(5) If the owner or operator implements remedial action, the department shall determine whether the remedial action has met the requirements of ch. NR 140 in accordance with ch. NR 726.