Ind. Admin. Code tit. 326, r. 6.8-2-37
Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11
Sec. 37. United States Gypsum Company in Lake County, source identification number 00333, shall meet the following emission limits:
| Emission Limits | |||
|---|---|---|---|
| Source | Units | lbs/hr | |
| Raw material handling | |||
| Each stack serving raw material conveying and storage, stacks J11, J12, and J13 | 0.015 gr/dscf | 0.190 | |
| Rock handling process | |||
| Drying, grinding, and calcining, stack M1 | 0.012 gr/dscf | 3.210 | |
| Stucco elevating and conveying, stack M2 | 0.015 gr/dscf | 2.210 | |
| Wallboard manufacturing process | |||
| Paper grinding and stucco system, stack B1 | 0.020 gr/dscf | 2.230 | |
| Specialty board manufacturing process (kerfing), stack B3 | 0.020 gr/dscf | 0.260 | |
| Each stack serving ready mix process, stacks J1, J2, and J3 | 0.017 lbs/ton | 0.100 | |
| Dry texture paint process | |||
| Mixing and packing, stack J4 | 0.020 gr/dscf | 0.190 | |
| Bag dumping, stack J5 | 0.010 gr/dscf | 0.100 | |
| Dry additive conveying, stack J6 | 0.010 gr/dscf | 0.030 | |
| Dry joint compound process | |||
| Mixing and packing, stack J7 | 0.020 gr/dscf | 0.340 | |
| Additive bag dumping, stack J8 | 0.010 gr/dscf | 0.34 | |
(Air Pollution Control Division; 326 IAC 6.8-2-37; filed Aug 10, 2005, 1:00 p.m.: 28 IR 3522; filed Jan 23, 2008, 1:44 p.m.: 20080220-IR-326040279FRA; errata filed Jan 7, 2011, 1:13 p.m.: 20110126-IR-326110007ACA; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)