AWWA QTC97055

With the final promulgation of the Information Collection Rule (ICR) in 1996, EPA hosted informal meetings with the stakeholders involved in the first phase of the Regulatory Negotiation (Reg Neg) process to exchange information regarding ongoing research and data collection efforts. However, a combination of delays in ICR implementation and the amendment of the Safe Drinking Water Act led stakeholders and the EPA to conclude that insufficient time would be available to use ICR data in the evaluation of the final Stage I Disinfectants and Disinfection Byproducts Rule (D/DBPR). A second negotiation process was pursued to achieve consensus on the Stage I D/DBPR and the Interim Enhanced Surface Water Treatment Rule (IESWTR). With respect to regulating DBPs, concerns were raised about the adverse effects of lowering DBP standards and eliminating predisinfection in maintaining, minimally, the status quo for microbial protection. Without ICR data, the Technical Working Group (TWG) for the negotiation process had to look elsewhere for data to answer questions about predisinfection, microbial risk, costs of compliance and total organic carbon removal. The Water Industry Data Base and other information was used in the development of the Stage I D/DBPR. This paper presents the conclusions drawn by the TWG based on the information it was able to collect regarding compliance with DBP Maximum Contaminant Levels, the elimination of predisinfection credits, enhanced coagulation and enhanced softening requirements and the projected cost of compliance with the Stage I D/DBPR.

Product Details

Published:

01/01/1997

ISBN(s):

0898679583

Number of Pages:

12

File Size:

1 file , 150 KB