Wash. Admin. Code § 51-51-60101

Current through Register Vol. 24-17, September 1, 2024

Section 51-51-60101 - Appendix F radon control methods

AF101.1 General. This appendix contains requirements for new construction in jurisdictions where radon-resistant construction is required.

Inclusion of this appendix by jurisdictions shall be required in high radon potential counties as determined in Figure AF101 and as listed in Table AF101(1).

Unvented crawl spaces are not permitted in any high radon potential county. In other areas, requirements of this appendix apply to any structure constructed with unvented crawl spaces as specified in R408.3.

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TABLE AF101(1) HIGH RADON POTENTIAL (ZONE 1) COUNTIES^A

WASHINGTON: Clark, Ferry, Okanogan, Pend Oreille, Skamania, Spokane, Stevens.

a.EPA recommends that this county listing be supplemented with other available state and local data to further understand the radon potential of Zone 1 areas.

Wash. Admin. Code § 51-51-60101

Statutory Authority: RCW 19.27.074, 19.27.020, and chapters 19.27 and 34.05 RCW. 07-01-090, § 51-51-60101, filed 12/19/06, effective 7/1/07.

Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency.