Mode of access: Internet from the EPA web site. Addresses as of 12/11/08: http://www.epa.gov/etv/pdfs/publications/600r06001/600r06001.pdf (v. 1), http://www.epa.gov/nrmrl/std/etv/pubs/600r06082pv.pdf (pt. 2), http://www.epa.gov/nrmrl/pubs/600r10119/600r10119.pdf (v. 3 (4/12/2010)); current access available via PURLs.
Note
Title from v. 1 title screen (viewed on Mar. 23, 2006).