Current through Register 1531, September 27, 2024
(A) Only the following methods are
permissible for removal of lead-based paint, other coating, plaster or putty.
(1) Wire brushing or wet scraping alone or
with the aid of a non-flammable solvent or abrasive compound not containing
methylene chloride. Dry scraping, while permitted, is generally not recommended
because of its dust-generating character.
(2) Hand sanding or machine sanding using a
sander equipped with a HEPA filter vacuum to feather edges and prepare
substrate for repainting or sealing.
(3) Controlled, low-level heating element
which produces a temperature not exceeding 1,000°F.
(4) Needle gun.
(5) Dip-tank solvent (off-site).
(6) For exterior use only: abrasive blasting
using a wet-misting technique or simultaneous vacuuming system.
(7) Any other method approved by the
Director.
(B) All methods
not listed in 105 CMR 460.120 or otherwise approved by the Director are
prohibited for use in lead paint removal including, but not limited to:
(1) Torch or flame burning.
(2) Dry abrasive blasting using sand, grit or
any particulate except as indicated in 105 CMR 460.120(A).
(3) On-site use of methylene chloride or
solutions containing methylene chloride.
(4) Use of potassium or sodium
hydroxide-based solutions, except in paste forms on interior
surfaces.
(5) Machine sanding,
except as indicated in 105 CMR 460.120(A).
(C) For properties listed on the State
Register of Historic Places, the following methods for removing lead-based
paint, other coating, plaster or putty on site, usually in combination, may be
appropriate depending on the substrate and its condition. Any method can cause
damage to the substrate if used improperly. Testing of products and strict
controls on workmanship are recommended. For removing lead-based paint, other
coating, plaster or putty from a component or fixture which has been removed
and taken off site, see
105 CMR
460.140.
(1) Softening paint with heat guns, heat
plates, or steam.
(2) Stripping
with solvent-based, non-caustic chemical solutions.
(3) Scraping, without gouging
woodwork.
(4) Sanding, by hand, to
finish.
(5) Mechanical sanding with
orbital sander with HEPA filter attachment, only as a finishing or smoothing
tool.
(6) Mechanical sanding with
belt sander with HEPA filter attachment, only on a flat surface and by a
skilled operator.
(7) Abrasive
blasting with sand or other gritty substances, when used with a wet misting
technique or simultaneous vacuuming system, only in the following situations:
(a) Industrial interior masonry or wood
surfaces without significant design, detailing, tooling, or finish.
(b) Cast and wrought iron and
steel.
(c) Concrete.
(d) Delicate abrasive cleaning supervised by
an architectural conservator.
(8) Any other method approved by the Director
to be used in properties listed on the State Register of Historic
Places.
(D) All
leaded materials and/or lead residues shall be disposed of in accordance with
applicable regulations of the Department of Environmental Protection, all
applicable federal regulations including, but not limited to, those of the
Department of Housing and Urban Development and the Environmental Protection
Agency, and all applicable local regulations and ordinances.
