Basis

Applicability:

Lower applicability criteria to 1.0 ton per year of colored glass

Create Tier 0 (1.0 to 10 tpy, make sure 10 itself isn’t in both Tier 0 and 1)

Comment, lower applicability

Permit requirement:

Tier 1 and 2 require permit

Tier 0 must register

Change made to integrate Tier 0

Control requirements for furnaces that use regulated HAPs:

Tier 0, install filtration system (baghouse, cartridge filter), submit NC

Tier 1, install filtration system (baghouse, cartridge filter), submit NC (drop exemption possibility)

Tier 2, install filtration system (baghouse, cartridge filter), submit NC

Change made to integrate Tier 0, simplify rules

Performance standard for emission control device:

Tier 0, none (review NC to be sure it’s a legitimate system)

Tier 1, 0.005 gr/dscf (or other) on outlet

Tier 2, 0.005 gr/dscf (or other) on outlet

Comments, also DEQ judgement that BE test has proven that baghouses are viable control devices

Bag leak detection system:

Tier 0, not required

Tier 1, not required

Tier 2, required, install prior to conducting PM test (note that obtaining and installing bag leak detection system adds to the time needed, so I suggest adding more

?

Testing requirements:

Tier 0, none

Tier 1, test control outlet for PM within 60 days (or more?)

Tier 2, test control outlet for PM within 120 days (linked to bag leak detection system); test for metals (M29) within 120 days (or more?)

Tier 2, optional test on control outlet, M0061 for Cr+6

If optional test is not done, source must assume 100% of chromium emitted is as Cr+6; if optional test is done, DEQ may approve use of the test result to estimate percentage of Cr+6 in emissions.

Comments, and to integrate Tier 0

Add exemption for remelters:

Clarify that remelters are not subject to the rule

Define remelting

Comments

Other:

tbd