Wyoming Administrative Code › Agency 041 - Fire Prevention and Electrical Safety, Dept. of › Sub-Agency 0004 - State Emergency Response Commission › Chapter 2 - CLANDESTINE LAB TESTING AND REMEDIATION › Section 2-11 - Remediation Procedures

Current through July 13, 2024
(a) If any Normal
				Access Area within a structure is found or assumed to contain Target Compound
				residues levels above the AL, the area shall be remediated to reduce the Target
				Compound concentration to a level below the AL prior to further use, entry,
				lease, renting, or occupancy. If any Low Access Area within a structure is
				found or assumed to contain Target Compound residues levels above the AL-LAA,
				the area shall be remediated to reduce the Target Compound concentration to a
				level below the AL-LAA prior to further use, entry, lease, renting, or
				occupancy. Part or all of the structure may be disposed of or demolished in
				lieu of remediation, in compliance with all other applicable
				regulations.
(b) The following
				procedures shall be used during remediation.
(i) Only qualified remedial contractors as
				defined in Section 4 shall be used to perform Clanlab remediation.
(ii) All work shall be performed in
				accordance with a written specification of the scope and methods to be used,
				prepared and stamped by the CIH/PE in advance of remediation.
(iii) The remedial contractor shall ensure
				that the structure(s) being remediated are secure from unauthorized entry
				throughout the remediation process until clearance is achieved.
(iv) Remediation supervision shall be
				provided by an experienced supervisor who is on-site at all times while work is
				being performed.
(v) Personal
				protective equipment shall be used in accordance with the employer's site
				specific written health and safety program.
(vi) Access points to the zone of remediation
				shall be labeled with appropriate signs indicating that Clanlab hazards exist
				within. They shall be barricaded with a triple z-flap entrance constructed of
				six-mil polyethylene.
(vii) The
				work area(s) shall be ventilated with four air changes per hour using a HEPA
				filtration system, exhausted outside the structure, when the remediation is
				producing airborne dust, or whenever remediation work is being performed
				adjacent to areas that are not contaminated. Existing ventilation systems shall
				be de-activated.
(viii) Any areas
				adjacent to the zone of non-compliance shall be sealed in a manner where no
				significant air movement will occur.
(ix) Any chemicals that may qualify as
				hazardous shall be handled, packaged, transported, and disposed of in
				accordance with federal, state and local requirements.
(x) All movable items and porous materials
				shall be removed unless sample results indicate that the residue level(s) on
				them are less than the Allowable Level(s).
(xi) Chemical oxidants shall not be used for
				initial cleaning unless manufacturer's data demonstrate that the product will
				reduce by-products to the same percent reduction as the Target Compound is
				reduced. However, if two cleanings are performed with non-oxidizing cleaning
				agents, and the average reduction from initial residue levels is at least 90%
				and no more than three times the AL in Normal Access Areas or AL-LAA for Low
				Access Areas, whichever is more stringent, then oxidants may be used for final
				cleaning.
(xii) If any surfaces
				were painted prior to clearance testing, the paint layer that was applied shall
				be removed or the substrate removed.
(xiii) Unless testing indicates no Target
				Compound is detectable, soils within areas that exceed allowable levels shall
				be removed to a depth of two inches and a vapor barrier installed or be removed
				to a depth that is below the target level.
(xiv) All waste materials, including but not
				limited to contents and demolition waste, shall be promptly containerized and
				disposed of in accordance with all applicable regulatory requirements. All
				haulers or handlers and landfills shall be notified in writing, and acknowledge
				receipt in writing, that the waste contains target compound residues. A receipt
				from the landfill shall be obtained to document the location where wastes were
				taken.
(xv) All plumbing systems
				shall be flushed clean with water.
(xvi) HVAC systems shall be cleaned or
				demolished (removed). If HVAC systems are cleaned for clearance testing, the
				following steps shall be used.
(A) A sketch of
				the system layout shall be prepared.
(B) All components of the system shall be
				cleaned by hand or with pneumatic or electrical agitators.
(C) Negative pressure with HEPA filtration
				shall be applied to a section of the ductwork prior to agitation.
(D) Portions of the ductwork system that are
				not comprised of sheet metal shall be opened and cleaned, e.g., joist spaces,
				drywall spaces, etc.
(E) A
				certification shall be prepared that all parts of the system as sketched were
				cleaned.
(F) The CIH/PE shall be
				notified that the structure is ready for clearance testing.
(xvii) After clearance sampling
				indicates that all portions of the facility that were part of the required
				remediation are in compliance, the CIH/PE shall notify the building owner and
				incident commander in writing. At that time, the incident commander shall
				determine if the warning signs shall be removed and the site declared
				remediated.
(xviii) The remedial
				contractor shall provide a project report to the CIH/PE for compilation with
				the sampling report including the following information: date(s) of work,
				method(s) of work, daily personnel sign-in logs, training certificates, all
				chemicals used, a narrative description of daily work completed, disposal
				methods, landfill location, copies of all disposal certificates, materials and
				items removed, sketches of HVAC system, certification that all work was
				performed in accordance with regulations and specification, certification that
				all parts of HVAC system were cleaned.