On Oct. 15, 2008, the EPA revised its standard for lead for the first time since the original 1978 lead standard was established. The revision strengthened the 1978 standard tenfold, decreasing the standard for airborne lead from 1.5 to 0.15 micrograms per cubic meter.

2008 Standard

Three-month Rolling Average Lead Standard - 0.15 micrograms per cubic meter, or

Boundary Designations

2008 Standard Boundary Designations Table

MoDNR Submittal Date MoDNR Action/Document EPA Date EPA Action/Document
Dec. 3, 2009 2008 Lead Standard Boundary Recommendations Nov. 22, 2011 Final Boundary Designations for the 2008 Lead NAAQS
[76 FR 72097]
Effective: Dec. 31, 2011
N/A N/A June 14, 2011 EPA 120-Day Letter for 2008 Lead Standard (2nd round)
N/A N/A June 11, 2010 EPA 120-Day Letter for 2008 Lead Standard (1st round)

Herculaneum

2008 Standard Herculaneum Action Table

>MoDNR Submittal Date MoDNR Action/Document EPA Date EPA Action/Document
Sept. 1, 2021 Department Response Letter - Herculaneum 2018 Violations Dunklin Monitor July 7, 2021

EPA Letter - Herculaneum 2018 Violations Dunklin Monitor

April 17, 2013

Herculaneum 2008 Lead Standard Nonattainment Area Plan

2013 Herculaneum Consent Judgement

Oct. 20, 2014 Approval - Nonattainment Plan [79 FR 62572]

Buick

2008 Standard Buick Actions Table

MoDNR Submittal Date MoDNR Action/Document EPA Date EPA Action/Document
Sept. 24, 2013 Modification - Buick 2008 Lead Standard Aug. 28, 2015 Approval - Nonattainment Plan
[80 FR 52190]
April 17, 2013 Buick 2008 Lead Standard Nonattainment Area Plan Aug. 28, 2015 Approval - Nonattainment Plan
[80 FR 52190]

Exide Technologies - Canon Hollow Facility

2008 Standard Exide Technologies - Canon Hollow Facility Action Table

MoDNR Submittal Date MoDNR Action/Document EPA Date EPA Action/Document
Oct. 15, 2014

Exide 2008 Lead Standard Compliance Plan

Sept. 26, 2016 Approval - Exide Compliance Plan
[81 FR 65987]

Glover

2008 Standard Glover SIPs Actions Table

MoDNR Submittal Date MoDNR Action/Document EPA Date EPA Action/Document
Oct. 7, 2020 Continued Attainment of the 2008 Lead Standard in Liberty and Arcadia Townships in Iron County Doe Run - Glover Facility Pending EPA Approval  

Related Links

Missouri Department of Natural Resources

Missouri Department of Health and Senior Services

U.S. Environmental Protection Agency

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