Environmental Protection Agency November 25, 2011 – Federal Register Recent Federal Regulation Documents

Notice is hereby given of a meeting of the National Drinking Water Advisory Council (NDWAC or Council), established under the Safe Drinking Water Act. The Council will consider various issues associated with drinking water protection and public water systems including actions to assist small water systems and efforts underway to address nutrient pollution of drinking water supplies. The Council will also receive updates about several on-going drinking water program activities.

EPA is approving State Implementation Plan (SIP) submittals from the State of Maryland pursuant to the Clean Air Act (CAA). Whenever new or revised national ambient air quality standards (NAAQS) are promulgated, the CAA requires states to submit a plan for the implementation, maintenance, and enforcement of such NAAQS. The plan is required to address basic program elements, including, but not limited to regulatory structure, monitoring, modeling, legal authority, and adequate resources necessary to assure attainment and maintenance of the standards. These elements are referred to as infrastructure requirements. Maryland has made submittals addressing the infrastructure requirements for the 1997 8-hour ozone and fine particulate matter (PM2.5) NAAQS and the 2006 PM2.5 NAAQS. This action approves portions of those submittals.

The EPA is proposing amendments to the national emissions standards for hazardous air pollutants for Mineral Wool Production and Wool Fiberglass Manufacturing to address the results of the residual risk and technology review that the EPA is required to conduct by the Clean Air Act. The proposed Mineral Wool Production amendments include emissions limits for carbonyl sulfide, hydrogen fluoride and hydrochloric acid for cupolas; add combined collection and curing processes as new regulated sources; and include emissions limits for formaldehyde, phenol and methanol for combined collection and curing operations. Modifications to the testing and monitoring and related notification, recordkeeping and reporting requirements are also proposed. The proposed amendments for the Wool Fiberglass Manufacturing source category include emissions limits for chromium compounds, hydrogen fluoride, hydrochloric acid and particulate matter for glass- melting furnaces at major sources; revised emissions limits for formaldehyde, and the addition of emissions limits for phenol and methanol for bonded product lines at major sources; and modifications to testing and monitoring and related notification, recordkeeping and reporting requirements. These proposed rules only apply to major sources, but we plan to regulate wool fiberglass area sources in a future action. We are also proposing to revise provisions addressing periods of startup, shutdown and malfunction to ensure that the rules are consistent with a recent court decision.