1 EXHIBIT 16.1 ------------ [McGladrey & Pullen, LLP letterhead] September 21, 1999 Mr. James K. McHugh Chief Financial Officer N-Viro International Corporation 3450 West Central Avenue, Suite 328 Toledo, OH 43606 Dear Mr. McHugh: This is to confirm that the client-auditor relationship between N-Viro International Corporation (Commission File Number 0-21802), and McGladrey & Pullen, LLP has ceased. Sincerely, /s/ McGladrey & Pullen, LLP --------------------------- McGLADREY & PULLEN, LLP cc: Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission Mail Stop 11-3 450 Fifth Street, N.W. Washington, DC 20549