Water Treatment Technology Feasibility Support Document for Chemical Contaminants; In Support of Epa Six-Year Review of National Primary Drinking Water Regulations

By Environmental Protection Agency

Book Id: WPLBN0000054073
Format Type: PDF eBook
File Size: 0.5 MB
Reproduction Date: 2007

Title:	Water Treatment Technology Feasibility Support Document for Chemical Contaminants; In Support of Epa Six-Year Review of 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 Agency, E. P. (n.d.). Water Treatment Technology Feasibility Support Document for Chemical Contaminants; In Support of Epa Six-Year Review of National Primary Drinking Water Regulations. Retrieved from http://gutenberg.cc/

Description
Excerpt: This document was prepared in support of the 1996-2002 Six-Year Review of Existing National Primary Drinking Water Regulations (NPDWRs) for EPA's Office of Ground Water and Drinking Water with James Taft as Targeting and Analysis Branch Chief during the course of the review. Judy Lebowich served as EPA co-team lead for the Six-Year Review and as the Work Assignment Manager for the development of this document. At different times throughout the process, Marc Parrotta and Wynne Miller have also served as co-team leads for the project. The Six-Year Review Work Group consists of representatives of the Office of Ground Water and Drinking Water, the Office of Science and Technology, the Office of General Counsel, the Office of Pesticide Programs, the Office of Research and Development, the Office of Policy, Economics and Innovation, the Office of Solid Waste and Emergency Response, and EPA Regions I, V, VII, IX, and X. Work Group members provided technical guidance throughout. The National Drinking Water Advisory Council (NDWAC) and many stakeholders provided valuable advice to improve the review process and this document. The Cadmus Group, Inc., served as the prime contractor for developing this document.

Table of Contents
TABLE OF CONTENTS ACRONYMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v I. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II. Treatment Reviews for MCL-type Standards for Which Health Risk Assessments Were Completed or Anticipated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A. Beryllium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 B. Chromium (Total) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. Treatment technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Additional information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Potential in-place treatment modifications . . . . . . . . . . . . . . . . . . . . . . . . 7 4. Potential chromium treatment research . . . . . . . . . . . . . . . . . . . . . . . . . . 8 C. Fluoride . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1. Treatment technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2. Potential in-place treatment modifications . . . . . . . . . . . . . . . . . . . . . . . 10 3. Potential fluoride treatment research . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 D. Oxamyl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 E. Picloram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 III. Treatment Review for Chemical Contaminants Regulated by Treatment Technique (TT) Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 A. Acrylamide and Epichlorohydrin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 B. Lead and Copper Rule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 IV. Chemical Contaminants With MCLs Limited by Analytical Feasibility . . . . . . . . . . . . 14 A. Volatile Organic Contaminants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. Benzene, Carbon Tetrachloride, 1, 2-dichloroethane, and Trichloroethylene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2. 1,2-Dibromo-3-chloropropane (DBCP) . . . . . . . . . . . . . . . . . . . . . . . . . 15 3. Dichloromethane (Methylene Chloride) . . . . . . . . . . . . . . . . . . . . . . . . . 15 4. 1,2-Dichloropropane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5. Tetrachloroethylene (Perc) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 B. Other Contaminants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 1. Chlordane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2. Heptachlor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3. Heptachlor Epoxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4. Hexachlorobenzene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5. Thallium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6. Toxaphene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7. 1,1,2-Trichloroethane . . . . . . . . . . . . . . . . . . . .