US Codex
C.F.R.
Browse by date

View an earlier version

Latest
Current
1 year ago
Sep 4, 2025
5 years ago
Sep 4, 2021
Browse all versions by date
Notes

§61.207. Radium-226 sampling and measurement procedures. — Inbound Citations

40 C.F.R. § 61.207

Statutory Authority

Cited by 4 regulations in release Current.

Citations to 40 U.S.C. § 61.207 as a whole

  • 40 C.F.R. § 61.204(a)
    Go to provision →
    (a) The owner or operator of the stack from which the phosphogypsum is removed shall determine annually the average radium-226 concentration at the location in the stack from which the phosphogypsum will be removed, as provided by § 61.207.
  • 40 C.F.R. § 61.206(d)(1)
    Go to provision →
    (1) The owner or operator of the stack from which the phosphogypsum is removed shall determine annually the average radium-226 concentration at the location in the stack from which the phosphogypsum will be removed, as provided by § 61.207.
  • 40 C.F.R. § 61.208(a)(1)(vi)
    Go to provision →
    (vi) The average radium-226 concentration, in pCi/g (pCi/lb), of the phosphogypsum, as determined pursuant to § 61.207; and
  • 40 C.F.R. § 61.209(b)
    Go to provision →
    (b) Each owner or operator of a phosphogypsum stack must maintain records documenting the procedure used to determine average radium-226 concentration pursuant to § 61.207, including all measurements, calculations, and analytical methods on which input parameters were based. The required documentation shall be sufficient to allow an independent auditor to verify the accuracy of the radium-226 concentration.