SITE INFORMATION AND CORRESPONDENCE (3)

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Media-Specific Criteria: A. Groundwater: 1. For sites in which groundwater.with a designated beneficial use is affected by an unauthorized release: Has the contaminant plume that exceeds water quality objectives been stable or decreasing in areal extent and met all of the additional characteristics of one of the five classes of sites listed below? dyes 0 No NA (a) i. The contaminant plume that exceeds water quality objectives is <100 feet in length. ii. There is no free product. iii. The nearest existing water supply well or surface water body is >250 feet from the defined plume boundary. ❑ Yes ❑ No �NA (b) i. The contaminant plume that exceeds water quality objectives is <250 feet in length. ii. There is no free product. iii. The nearest existing water supply well or surface water body is >1000 feet from the defined plume boundary. iv. The dissolved concentration of benzene is <3000 pg/L and the dissolved concentration of MTBE is <1000 pg/L. ❑ Yes ❑ No [21NA c i. The contaminant plume that exceeds wafer quality objectives is <250 feet in length. ii. Free product has been removed to the maximum extent practicable, may still be present below the site where the release originated, but does not extend off-site. iii. The plume has been stable or decreasing for a minimum of five years. iv. The nearest existing water supply well and/or surface water body is >1000 feet from the defined plume boundary. owner is willing to t a land use restriction if the regulatory agency v. The property own g accept requires a land use restriction as a condition for closure. Yes ❑ No 2/NA (d) i. The contaminant plume that exceeds water quality objectives is <1000 feet in length. ii. There is no free product. iii. The nearest existing water supply well or surface water body is >1000 feet from the defined plume boundary. iv. The dissolved concentrations of benzene and MTBE are both <1000 pg/L. ❑ Yes o ❑ NA i 1 \