THE WELCH COMPANY
440 Davis Court #1602
San Francisco, CA 94111-2496
415 781 5700

January 19, 1999                                                                     04 00035 61 99011901



Mr. Wayne Wetzel, Ph.D.
Deputy Director
State of Montana
Department of Natural Resources
and Conservation
1520 East Sixth Avenue
Helena, MT  59620 2301

Subject:  SDS Problem

Dear Wayne,

This confirms our telecon this afternoon, responding to your letter dated today, on SDS problems.

Please try the ideas from our telecon this afternoon, and let me know the results, including submitting the past few months of your SDS records.

Thanks.

Sincerely,

THE WELCH COMPANY

Rod Welch