06-096 C.M.R. ch. 130, § 9 - Monitoring and Record Keeping
The owner or operator of a solvent cleaning machine shall maintain a monthly record of the amount of solvent added to the unit and keep such records for a period of two years. In addition, the operator of a solvent cleaning machine subject to the provisions of Sections 4 though 6 of this Chapter shall conduct monitoring and record keeping as outlined below. These records shall be maintained for a period of six years.
A. If a freeboard refrigeration device is
used to comply with these standards, the owner or operator shall use a
thermometer or thermocouple to measure the temperature at the center of the air
blanket during the idling mode. Measurements and recordings shall be made
weekly;
B. If a superheated vapor
system is used to comply with these standards, the owner or operator shall use
a thermometer or thermocouple to measure the temperature at the center of the
superheated solvent vapor zone while the solvent cleaning machine is in the
idling mode. Measurements and recordings shall be made weekly;
C. If a cover (working-mode, downtime-mode,
and/or idling-mode cover) is used to comply with these standards, the owner or
operator shall conduct a visual inspection to determine if the cover is opening
and closing properly, completely covers the cleaning machine openings when
closed, and is free of cracks, holes, and other defects. Observations and
recordings shall be made weekly;
D.
If dwell is used, the owner or operator shall determine the actual dwell time
by measuring the period of time that parts are held within the freeboard area
of the solvent cleaning machine after cleaning. Observations and recordings
shall be made monthly;
E. The owner
or operator shall determine the hoist speed by measuring the time it takes for
the hoist to travel a measured distance. The speed is equal to the distance in
meters divided by the time in minutes (meters per minute). Measurements and
recordings shall be made monthly;
F. The owner or operator of a batch vapor or
in-line solvent cleaning machine complying using reduced room draft, maintained
by controlling room parameters (i.e., redirecting fans, closing doors and
windows, etc.), shall conduct monitoring and record the results as follows:
(1) Initially measure the windspeed within 6
inches above the top of the freeboard area of the solvent cleaning machine in
accordance with the following:
(a) Determine
the direction of the wind current by slowly rotating a velometer or similar
device until the maximum speed is located;
(b) Orient a velometer in the direction of
the wind current at each of the four corners of the machine;
(c) Record the reading for each corner;
and
(d) Average the values obtained
at each corner and record the average wind speed.
(2) Record the room parameters established
during the initial compliance test to achieve the reduced room draft;
(3) Quarterly monitor of the windspeed in
accordance with paragraph (1); and
(4) Weekly monitoring of the room parameters
established during the initial compliance test to achieve the reduced room
draft.
G. If an
enclosure (full or partial) is used to achieve reduced room draft, the owner or
operator shall conduct an initial monitoring test and, thereafter, monthly
monitoring tests of the windspeed within the enclosure by slowly rotating a
velometer inside the entrance to the enclosure until the maximum speed is
located and record the maximum wind speed. The owner or operator shall also
conduct a monthly visual inspection of the enclosure to determine if it is free
of cracks, holes and other defects.
H. The owner or operator using a carbon
adsorber to comply with this Chapter shall measure and record the concentration
of VOC solvent in the exhaust of the carbon adsorber weekly with a colorimetric
detector tube. This test shall be conducted while the solvent cleaning machine
is in the working mode and is venting to the carbon adsorber. The exhaust
concentration shall be determined using a colorimetric detector tube designed
to measure a concentration of 25 parts per million by volume of solvent in air
to an accuracy of plus or minus 25 parts per million by volume or as approved
by the DEP and EPA. The concentration shall be determined through a sampling
port for monitoring within the exhaust outlet that is easily accessible and
located at least 2 stack or duct diameters upstream or downstream from any flow
disturbance such as a bend, expansion, contraction, or outlet and downstream
from no other inlet, or as approved by DEP and EPA.
I. All records shall be made available to the
Department or EPA upon request.
Notes
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