Consideration of Other Regulatory Revisions for Chemical Contaminants in Support of the Six-Year Review of the National Primary Drinking Water Regulations

By Environmental Protection Agency

Book Id: WPLBN0000073103
Format Type: PDF eBook:
File Size: 0.3 MB
Reproduction Date: 2007

Title:	Consideration of Other Regulatory Revisions for Chemical Contaminants in Support of the Six-Year Review of the National Primary Drinking Water Regulations
Author:	Environmental Protection Agency
Volume:
Language:	English
Subject:	Ecology, Natural resource issues, Environemtal protection
Collections:	Environmental Awareness Library Collection
Historic Publication Date:
Publisher:	United States Environmental Protection Agency


Citation APA MLA Chicago Protection Agency, B. E. (n.d.). Consideration of Other Regulatory Revisions for Chemical Contaminants in Support of the Six-Year Review of the National Primary Drinking Water Regulations. Retrieved from http://gutenberg.cc/

Description
Excerpt: To facilitate the quality and consistency of this regulatory review process, EPA performed a series of analyses at the beginning of each review cycle, intended to target those NPDWRs that are the most appropriate candidates for revision. The Agency plans to use available, scientifically-sound data to make decisions regarding whether or not to revise a regulation. During each review cycle, EPA will review the following key information to make decisions regarding regulatory changes: health risk assessments; technology assessments; other revisions related to implementation of the regulations; occurrence and exposure analyses; and economic considerations.

Table of Contents
TABLE OF CONTENTS List of Acronyms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi 1.0 Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Purpose of the Six-Year Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Purpose of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 Compliance Monitoring and Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Summary of Comments and EPA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2.1 Flexibility of Monitoring Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2.2 Waiver Issuance and Vulnerability Assessment . . . . . . . . . . . . . . . . . . . . . 5 3.0 Lead and Copper Rule Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 Summary of Comments and EPA Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2.1 Suggestions for Cost and Burden Reduction . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2.2 Sampling Methodology and Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.0 Monitoring for Cyanides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2 Summary of Comments and EPA Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.0 Monitoring for Nitrites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.2 Summary of Comments and EPA Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.0 Monitoring and Public Notification for Fluoride . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.2 Summary of Comments and EPA Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7.0 Consumer Confidence Report and Public Notification Requirements . . . . . . . . . . . . . . 12 7.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7.2 Summary of Comments and EPA Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8.0 Re-Evaluation of Risk for Requiring NTNCWS Monitoring . . . . . . . . . . . . . . . . . . . . . 13 8.1 Issue Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.2 Summary of Comments and EPA Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13