2007 Methods Update Rule (MUR)
The US EPA issued Guidelines for Establishing Test Procedures for the Analysis of Pollutants under the Clean Water Act; National Primary Drinking Water Regulations; Analysis and Sampling Procedures; Final Rule (3/12/2007). This rule became effective April 11, 2007.
2007 Methods Update Rule Announcement Letter (4/19/2007)
Federal Register Notices
New Test Methods for Clean Water Act (CWA) Table(per 3/12/2007 Federal Register)
New Test Methods for Clean Water Act (CWA) Table (per 3/26/2007 Federal Register)
Oil and Grease Methods
No freon use after April 11, 2007