SUMMARY: EPA is proposing changes to analysis and sampling test procedures in wastewater regulations. These changes will provide increased flexibility to the regulated community and laboratories in their selection of analytical methods (test procedures) for use in Clean Water Act programs. The changes include proposal of EPA methods and methods published by voluntary consensus standard bodies, such as ASTM International and the Standard Methods Committee and updated versions of currently approved methods. EPA is also proposing to add certain methods reviewed under the alternate test procedures program. Further, EPA is proposing changes to the current regulations to clarify the process for EPA approval for use of alternate procedures for nationwide and Regional use. In addition, EPA is proposing minimum quality control requirements to improve consistency across method versions; corrections to previously approved methods; and changes to sample collection, preservation, and holding time requirements. Finally, EPA is proposing changes to how EPA cites methods in three effluent guideline regulations. DATES: EPA must receive your comments on this proposal on or before November 22, 2010.
Read the complete proposal: