Section 326IAC1-4-65. Porter County

   The following attainment status designations are applicable to Porter County:

Pollutant	Designation
SO2	Cannot be classified for the area bounded on the north by Lake Michigan; on the west by the Lake County and Porter County line; on the south by I-80 and I-90; and on the east by the LaPorte County and Porter County line. The remainder of Porter County is better than national standards.
CO	Unclassifiable or attainment effective November 15, 1990.
O3	40 CFR 81.315 as amended by 77 FR 34228.1,2
PM2.5	Attainment effective February 6, 2012, for the annual PM2.5 standard.
PM2.5	Unclassifiable or attainment effective December 13, 2009, for the 24-hour PM2.5 standard.
PM10	Unclassifiable effective November 15, 1990.
NO2	Cannot be classified or better than national standards.
Pb	Unclassifiable or attainment effective December 31, 2011.
1Nonattainment Severe 17 effective November 15, 1990, for the Chicago-Gary-Lake County area for the 1-hour ozone standard which was revoked effective June 15, 2005.
2The department has filed a legal challenge to U.S. EPA's designation in 77 FR 34228.

(Air Pollution Control Division; 326 IAC 1-4-65; filed Dec 26, 2007, 1:43 p.m.: 20080123-IR-326070308FRA; filed Oct 15, 2010, 1:51 p.m.: 20101110-IR-326100342FRA; filed Jun 7, 2012, 11:21 a.m.: 20120704-IR-326110742FRA; filed Jan 30, 2013, 12:34 p.m.: 20130227-IR-326110774FRA; filed Oct 25, 2013, 2:41 p.m.: 20131120-IR-326130164FRA)