Equipment requirements for asbestos abatement are as follows:

1. (1) The Contractor shall utilize a sufficient number of functioning negative air machines equipped with HEPA filters, and which shall:

   1. (A) Be capable of providing one work-place air change every 15 minutes.

   2. (B) Be capable of producing a reduced pressure of 0.02 inches of water in containment, which shall be verified by instrumentation available at the work site.

      1. (i) Such instrumentation shall record a permanent paper record of the differential pressure, which shall be available for inspection by DOL.
      2. (ii) Manometer inlet tube placement shall be such that a representative reading of the pressure drop within the containment is obtained.
   3. (C) Not all of the above negative air machines need be discharged from the containment, provided the requirements of Sections 380:50-17-3(1)(A) and (B) above are satisfied.
   4. (D) Operate continuously from the start of removal of asbestos until clean-test requirements are met under the requirements of Section 380:50-11-2, except when the lock-down encapsulant is being sprayed.
2. (2) A sufficient amount of equipment and supplies for work area decontamination shall be available.
3. (3) A sufficient supply of scaffolds, ladders, lifts and hand tools (e.g., scrapers, wire cutters, brushes, utility knives, wire saws, etc.) shall be provided as needed.
4. (4) Sprayers for spraying amended water shall be provided as needed.
5. (5) Rubber dustpans and rubber squeegees shall be provided for cleanup.
6. (6) A sufficient supply of HEPA filtered vacuum systems shall be available during cleanup.
7. (7) Powered hand tools shall be equipped with HEPA filtered, local exhaust ventilation systems.

8. (8) Removal of asbestos by means of high-pressure water jets is prohibited, unless:

   1. (A) The building in which the water jets to be used is unoccupied, or absolutely isolated from occupied areas.
   2. (B) Measures have been taken by the con- tractor to guarantee water will not escape from containment.
   3. (C) Any water escaping from a containment in which water jets have been used will be assumed to contain asbestos, and unless proved otherwise, could result in a serious violation.
9. (9) No asbestos contaminated equipment shall be brought to an asbestos abatement site. Visible residue on such equipment shall be assumed by DOL to contain asbestos.

Amended at 9 Ok Reg 3309, eff 7-27-92

Amended at 18 Ok Reg 3523, eff 9-14-01