WAC 173-303-64650
Corrective action management unit
(CAMU). (1) Except as provided in subsection (2) of this
section, CAMUs are subject to the requirements of this section
and WAC 173-303-64660 and 173-303-64670.
(2) CAMUs that were approved before April 22, 2002, or
for which substantially complete applications (or equivalents)
were submitted to the department on or before November 20,
2000, are subject to the requirements in WAC 173-303-64640 for
grandfathered CAMUs; CAMU waste, activities, and design will
not be subject to the standards in WAC 173-303-64650 and 173-303-64660, so long as the waste, activities, and design
remain within the general scope of the CAMU as approved.
(3) In accordance with the requirements of this section,
the applicable portions of WAC 173-303-64610 through173-303-64630
, and with WAC 173-303-64660, the department may
designate an area at a facility as a corrective action
management unit for the purpose of treating, storing or
disposing of CAMU-eligible waste that originates at the same
facility in order to implement remedies under this section or
to implement other cleanup actions. Corrective action
management unit means an area within a facility that is used
only for managing CAMU-eligible wastes for implementing
corrective action or cleanup at the facility. A CAMU must be
located within the contiguous property under the control of
the owner or operator where the wastes to be managed in the
CAMU originated. One or more CAMUs may be designated at a
facility.
(a) CAMU-eligible waste means:
(i) All solid and dangerous wastes, and all media
(including groundwater, surface water, soils, and sediments)
and debris, that are managed for implementing cleanup.
As-generated wastes (either dangerous or nondangerous) from
ongoing industrial operations at a site are not CAMU-eligible
wastes.
(ii) Wastes that would otherwise meet the description in
(a)(i) of this subsection are not "CAMU-Eligible Wastes"
where:
(A) The wastes are dangerous wastes found during cleanup
in intact or substantially intact containers, tanks, or other
nonland-based units found above ground, unless the wastes are
first placed in the tanks, containers or nonland-based units
as part of cleanup, or the containers or tanks are excavated
during the course of cleanup; or
(B) The department exercises the discretion in (b) of
this subsection to prohibit the wastes from management in a
CAMU.
(iii) Notwithstanding (a)(i) of this subsection, where
appropriate, as-generated nondangerous waste may be placed in
a CAMU where such waste is being used to facilitate treatment
or the performance of the CAMU.
(b) The department may prohibit, where appropriate, the
placement of waste in a CAMU where the department has or
receives information that such wastes have not been managed in
compliance with applicable land disposal treatment standards
of WAC 173-303-140(2), or applicable unit design requirements
of WAC 173-303-600 through 173-303-695, or applicable unit
design requirements of WAC 173-303-400, or that noncompliance
with other applicable requirements of this chapter likely
contributed to the release of the waste.
(c) Prohibition against placing liquids in CAMUs.
(i) The placement of bulk or noncontainerized liquid
dangerous waste or free liquids contained in dangerous waste
(whether or not sorbents have been added) in any CAMU is
prohibited except where placement of such wastes facilitates
the remedy selected for the waste.
(ii) The requirements in WAC 173-303-140 (4)(b)(ii) for
placement of containers holding free liquids in landfills
apply to placement in a CAMU except where placement
facilitates the remedy selected for the waste.
(iii) The placement of any liquid which is not a
dangerous waste in a CAMU is prohibited unless such placement
facilitates the remedy selected for the waste or a
demonstration is made pursuant to WAC 173-303-140 (4)(b)(v).
(iv) The absence or presence of free liquids in either a
containerized or a bulk waste must be determined in accordance
with WAC 173-303-140 (4)(b)(iii). Sorbents used to treat free
liquids in CAMUs must meet the requirements of WAC 173-303-140
(4)(b)(iv).
(d) Placement of CAMU-eligible waste into or within a
CAMU does not constitute land disposal of dangerous waste.
(e) Consolidation or placement of CAMU-eligible waste
into or within a CAMU does not constitute creation of a unit
subject to minimum technology requirements.
(4) Designation of a CAMU will not in any way affect the
department's existing authorities, including authority under
chapter 70.105D RCW, to address clean-up levels,
media-specific points of compliance, or other remedy selection
decisions.
(5) Designation of a CAMU will not in any way affect the
timing or scope of review of any actions taken under the Model
Toxics Control Act pursuant to WAC 173-303-64630 to fulfill
the corrective action requirements of WAC 173-303-64620 or the
corrective action requirements of WAC 173-303-645.
[Statutory Authority: Chapters 70.105, 70.105D, and 15.54 RCW
and RCW 70.105.007. 04-24-065 (Order 03-10), § 173-303-64650,
filed 11/30/04, effective 1/1/05.]