Section 250.603. Exposure factors for site-specific standards

(a) A risk assessment for the site-specific standard shall use site-specific exposure factors under the EPA’s Final Guidelines for Exposure Assessment, 1992 (57 FR 22888—22938) or exposure factors used in the development of the Statewide health standards identified in Subchapter C (relating to Statewide health standards).

(b) If a person uses site-specific exposure factors that deviate from the standard exposure factors in Subchapter C, the site-specific exposure factors shall be clearly justified by supporting data. The person shall provide the supporting data in the site-specific risk assessment report.

(c) The exposure factors shall be selected based on the land use of the site with reference to current and currently planned future land use and the effectiveness of institutional or legal controls placed on the future use of the land.

(d) The person shall document in the site-specific risk assessment report the future use of the site.

Notation

Cross References

This section cited in 25 Pa. Code § 250.602 (relating to risk assessment procedures); and 25 Pa. Code § 250.606 (relating to development of site-specific standards).