: 4. rcectiylc ttl tf Dprcaefor © Lili 4 “or LMepvre is The recormended sidance,See 233py in soil, is: a. <4) pei/: - corrective action not required. b. 49 to 499 nCi/e - corrective action may he needed. Action to be taken snould be detarminc!s on a case=ocase basis. Ce. 2429 pci: - corractive action rejuirel. In applying the criteria for bone and bene varrov in part 1 above, it is assuned that if annual exposures do not exceed the applicable criteria in the year of hichest Jose, there will not be a requirement for liniting lonser tern cunulative exposures. On the other hand, inplementation of the “lovest practicable" concept will require considerations of effectiveness of remedial measurts to reduce both annual and lonvzer tern exposures to the extent practicable, 111-16