Wis. Admin. Code Department of Natural Resources § NR 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).

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

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

(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).

(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.

(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.

Note: For the purpose of this chapter, the department considers a value to be confirmed if a follow up field sample attains or exceeds the groundwater standard.

Notes

Wis. Admin. Code Department of Natural Resources § NR 508.04

Cr. Register, June, 1996, No. 486, eff. 7-1-96.

Section NR 140.14(3) addresses exceedances for analytical results that fall between the limit of detection and the limit of quantitation.