TAILIEUCHUNG - THE ENVIRONMENTAL PROTECTION AGENCY

To date, there has been no explicitly systematic review of the available literature on this topic. In contrast to non-systematic reviews which can be biased and incomplete, the prime purpose of systematic reviews of literature is to provide a comprehensive display of all available evidence in a common format. Systematic reviews have clear principles for their conduct. First, the process of the review should be carried out according to a pre- specified method. Second, the proposed method should be open to public scrutiny and peer review. Third, the review should be comprehensive within its pre-specified. | Wednesday January 30 1991 Part h Environmental Protection Agency 40 CFR Parts 141 142 and 143 National Primary Drinking Water Regulations Final Rule 3526 Federal Register Vol. 56 No. 20 Wednesday January 30 1991 Rules and Regulations ENVIROfU FNTAL PROTECTION AGENCY 40 CFR Parts 141 142 and 143 WH-FRL-3360-1 National Prlmnry Drinking Water Regtilatlnns Synthet c Organic Chemicals and inorganic Chemicals Monitoring for Unregulated Contaminants National Primary Drinking Water Regulations Implementation National Second ary Drinking Water Regulations AGENCY . Environmental Protection Agency EPA . ACTION Final rule. SUMMARY By this document EP A is promulgating maximum contaminant level goals MCLGs and National Primary Drinking Water Regulations NPDWRs for 25 synthetic organic chemicals SOCs and 7 inorganic chemicals IIOCs . The MCLGs and. MCLs for aldicarb aldicarb sulfoxide aldicarb sulfone pentachlorophenol and barium are reproposed elsewhere in today s Federal Register due to changes in the health basis for the MCLGs and or revised MCLs. The NPDWRs consist of maximum contaminant levels MCLs or treatment techniques for the SOCs and IOCs. The NPDWRs also include monitoring reporting and public notification requirements for these compounds. This document includes the best available technology BAT upon which the MCLs are based and the BAT for the purpose of issuing variances. The Agency is promulgating secondary MCLs SMCLs for two contaminants and one-time monitoring requirements IO approximately 30 SOCs and lOCs that are not regulated by NPDWRs. EFFECTIVE DATE All sections and of this regulation are effective July 30 1992. The information collection requirements of 2 Slid are effective July 30 1992 if the Information Collection Request is cleared by the Office of Management and Budget OMB . If not the requirements

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