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Express Terms Summary Parts 226 and 201

The New York State Department of Environmental Conservation (Department) proposes to: amend the current Part 226 entitled "Solvent Metal Cleaning Processes" by re-designating it Subpart 226-1 and renaming it "Solvent Cleaning Processes"; add a new Subpart 226-2, entitled "Industrial Cleaning Solvents" and make attendant changes to Part 201, 'Permits and Registrations' of Title 6 of the Official Compilation of Codes, Rules, and Regulations of the State of New York (6 NYCRR). The proposed changes to Part 226 are intended to reflect changes to the Ozone Transport Commission's (OTC's) model rule for solvent degreasing and incorporate federal Control Techniques Guidelines (CTGs) establishing Reasonably Available Control Technology (RACT) for volatile organic compounds (VOCs) emitted by industrial cleaning solvents.

Consistent with the OTC's model rule, the proposed changes to Part 226 include expanding applicability to the cleaning of all materials, not just metal; and changing the current 'cold cleaning' requirement of using a solvent with a maximum vapor pressure of 1.0 mm Hg, or less, at 20 degrees Celsius, to using a cleaner with no more than twenty-five (25) grams of VOC per liter (25g/l) of cleaning solution. No changes are being proposed for the other Part 226 solvent cleaning processes (open top vapor or conveyorized degreasing).

Based on the US Environmental Protection Agency's 'Industrial Cleaning Solvents' CTG (2006), owners or operators subject to the proposed Subpart 226-2 'Industrial Cleaning Solvents' will have work practice, recordkeeping and storage requirements for their cleaners that contain VOCs. Cleaning solutions will also have a maximum VOC content limit of fifty (50) grams of VOC per liter (0.42 pounds of VOC per gallon) of cleaning material or, as an alternative to this maximum VOC content, an industrial cleaning solvent with a maximum composite vapor pressure of eight (8) millimeters of mercury (mmHg) at 20 degrees Celsius may also be used. Using an emission control system with an overall control efficiency of at least 85 percent or equivalent control is also an acceptable form of compliance.

Where it can be demonstrated by the owner or operator of a facility that the requirements of proposed Subparts 226-1 or 226-2 cannot be met, for reasons of technological and economic infeasibility, the Department may accept a lesser degree of control upon submission of a satisfactory process specific RACT demonstration.

Proposed revisions to Part 201 include removing an exemption for cold cleaning degreasers that use a solvent with a VOC content of five percent or less by weight. This will remove potential confusion with the revised VOC limit of 25 grams VOC/liter for cold cleaners in the proposed rule. Also, a caveat will be added to a trivial exemption for solvent cleaning by hand, as hand wiping is specifically subject to the industrial cleaning solvent regulation being proposed (Subpart 226-2).

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    Proposed Part 226
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