 |
||
|
Ground Water & Drinking Water |  |
 |
||
|
|
|
|
|||||||||
|
|
Working Group on Occurrence & Contaminant Selection Conference Call, January 7, 1998Executive SummaryWashington, D.C.1. ATTENDANCE: absent - Joye Emmens, Mike McGeehin, and Gary Toranzos. All other Working Group Members (Attachment A) in attendance. 2. ISSUES DISCUSSED: The purpose of this call was to determine what the final Drinking Water Contaminant Candidate List (CCL) will be in light of comments and additional data received during the comment period on the draft CCL, and to develop recommendations for consideration by the National Drinking Water Advisory Council. A Federal Register notice on the draft CCL was published on October 6, 1997. For a period of 60 days, until December 5, 1997, the public had an opportunity to comment on the notice. Based on the data and feedback received, changes were proposed (Attachment B) for consideration by the Working Group. The final CCL must be signed by February 6, 1998 to meet the Safe Drinking Water Act statutory deadline. 3. ISSUES RESOLVED: a. For microorganisms, the following changes are recommended. The changes below are the combined result of suggestions made during the conference call and later follow-up conference calls and discussions with EPA microbiologists and other personnel in Cincinnati and Headquarters. The basis for these recommendations is summarized in Attachments C & D.
b. For chemicals the following changes were recommendation for the CCL. The basis for these recommendations is summarized in Attachment E. Keep on CCL: Organotins (mono- and di- organotins are only types used in PVC heat stabilizers)*
Add to CCL: Perchlorate No changes were recommended for the remaining chemical contaminants on the CCL. * It should be noted, however, there were dissenting votes from the Working Group on this issue. c. Other changes recommended include: Contaminants should be categorized by the next steps likely to occur, as opposed to generic data needs. Categories will be changed from those presented on Table 8 of the notice of draft CCL to those in Table 2 (Attachment F). Figure 5 (Attachment G) will also be included to depict the next steps in this process. The CCL should list 'Alachlor ESA and other metabolites' rather than just 'Alachlor ESA,' and 'Triazines and degradates' rather than just 'Triazines' in order to clarify the broader focus of the list. 4. NEXT STEPS: Proposed recommendations for the final CCL (Attachment H) will be provided to the National Drinking Water Advisory Council, and will be the subject of their upcoming deliberations during the conference call scheduled for February 2, 1998. The next meeting of the Working Group is not likely to occur until Spring/Summer 1999. The Agency will work with AWWARF and NAS/NRC to assist in development of process for microbiological and chemical contaminants for future CCLs. The Working Group will be kept informed, and will reconvene to review the results of the process development. Word Perfect versions of these attachments (except Attachment A) are available for downloading. Otherwise, simply continue to read these attachments while you are online.
Other Related Executive Summaries |
|
|
|
|
||
|
|
