LEGAL NOTICES OFFICIAL NOTICE HAZARDOUS SITES CLEANUP UNDER THE ACT OF OCTOBER 18, 1988 PROPOSED INTERIM RESPONSE FORWARD TOWNSHIP ASH SLIDE SITE, DOWNSTREAM AREAS FORWARD TOWNSHIP , ALLEGHENY COUNTY Pursuant to the Hazardous Sites Cleanup Act (HSCA), 35 P.S.6020.101-6020.1305, the Pennsylvania Department of Environmental Protection (Department) is proposing an interim response to address a release or threatened release of hazardous substances in areas downstream of the location of the fly ash slide that occurred at River Hill Road, Forward Township , Allegheny County on January 25, 2005. As a result of the January 2005 slide, fly ash has been deposited in areas that lie downstream of the slide in and along an unnamed tributary of the Monongahela River, between the tributary's third waterfall and the Monongahela River. The third waterfall is located directly east of the clearing for the gas pipe line that runs through properties owned by David Gregory and MSR, LLC. The proposed interim response will address whatever threat to human health and the environment is posed by the deposited fly ash. In brief, the following response action alternatives have been evaluated: 1. No Action: This alternative involves no response reaction being taken by the Department; whatever threat is posed by the fly ash would be left unaddressed. 2. Removal and off-site disposal of the fly ash: This alternative involves removing fly ash from the streams banks, properly disposing of the material, and restoring the disturbed areas. 3. Covering exposed fly ash with rock rip-rap : This alternative involves covering any exposed fly ash on the streams banks with rock rip-rap. Covering the fly ash would reduce the likelihood



of human and environmental threat; however, the fly ash could once more be exposed if stream flow erodes or displaces the rock cover. The Department is proposing Alternative No. 2 as its interim response, which the Department believes to be the option most protective of human health and the environment. This notice is being published pursuant to Section 506(b) of HSCA, 356020.506(b). An Administrative Record (AR) contains the information that forms the basis and that documents the selection of the proposed interim response. The AR is available for pubic review and comment Monday through Friday, 8 a.m. to 4 p.m., at the Department's Southwest Regional Office, 400 Waterfront Drive, Pittsburgh. The AR will be open for public review and comment for ninety (90) days only, from July 5, 2008 to October 3, 2008. Persons may submit written comments to the AR during this time by sending them to Terry Goodwald, 400 Waterfront Drive, Pittsburgh, PA 15222, or by delivering them to this office in person. In addition, persons may present oral comments for inclusion in the AR at a public hearing. The Department has scheduled the hearing on Thursday August 14, 2008 at 6:00 pm. at the Gallatin Sunnyside Fire Hall along Route 136 (3325 Rainbow Run Road) in Forward Township , Allegheny County. Persons wishing to present comments must register with the Departments Helen Humphreys before 12 p.m. on August 14, 2008, by telephone at (412) 442-4183 or in writing at 400 Waterfront Drive, Pittsburgh, PA 15222. Persons with a disability who wish to attend the hearing and require auxiliary aid, service or other accommodations to participate in the proceedings should call Helen Humphreys at (412) 442-4183, or through the Pennsylvania AT&T Relay Service at (800) 654-5984 (TDD), to discuss how the Department may accommodate their needs. July 5/2008 ADVERTISING WORKS Caff 412-664-9161 Ca f nd auC haw C can wark far yau!

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