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

Universal Citation: WY Code of Rules 2-11

Current through December 21, 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.

Disclaimer: These regulations may not be the most recent version. Wyoming may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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