NR 720.12 NoteNote: These soil parameter values are the defaults used in Pub-RR-890, “Soil Residual Contaminant Level Determination Using the US EPA Regional Screening Level Web Calculator.” This guidance may be found at http://dnr.wi.gov/topic/Brownfields/Pubs.html.

NR 720.13NR 720.13 Other pathways of concern. Responsible parties shall consider human food chain, surface water quality, and terrestrial eco-system pathways of exposure, when those pathways of exposure are of concern at a site or facility.

NR 720.13 NoteNote: In some cases, the potential for contaminant migration or exposure to contamination through other pathways may be of concern at a site or facility. These situations could include contaminated soil in close proximity to a surface water where the potential for runoff from the site or facility to cause an impact on surface water quality exists or contaminated soil where potential for bioaccumulation and uptake through the food chain resulting in adverse impacts to human health or terrestrial ecosystems exists. This section requires responsible parties to establish appropriate residual contaminant levels protective of these pathways when necessary.