5 PCSR 12-28-1993 - Laserfiche WebLink

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12/22/93 10:23 12612 559 2202 B.A. LIESCH Z002/003 • LIEXH - B.A. LIESCH ASSOCIATES,INC, 13400 15TH AVE.N. MINNEAPOLIS, MN 55441 612/559-1423 FAX;612/559-2202 MEMORANDUM TO: STEVEN ROHLF - CITY OF ELK RIVER FROM: JOHN LICHTER - B.A. LIESCH ASSOCIATES DATE: DECEMBER 22, 1993 RE: RENEWAL OF NRG CONDITIONAL USE PERMIT Based on our recent telephone conversations, I have reviewed several issues in regard to the Conditional Use Permit (CUP) renewal request forwarded by NRG. At this time, I have not received all information that has been requested from NRG, however, based on • our discussions, I believe the information they submit will not impact the findings of this memorandum. I had conversations with Mr. Joseph Weinhold of NRG concerning environmental issues at the NRG facility. I have confirmed the following issues with Mr. Weinhold: 1. The Fen wall system has been switched from halon to a sodium bicarbonate system thus eliminating the discharge of CFCs from the halon system. 2. Mr. Weinhold indicated that their water supply testing in the plant exceeded MDH EPA standards for copper in the softened water supply based on two samples taken in the janitor's sink and the bathroom sink. It is anticipated by Mr. Weinhold that these levels may fall within drinking water standards in the unsoftened drinking water source. Samples confirming test results from the drinking water sources will be collected in January and analyzed shortly thereafter. 3. The metals levels present in run-off water on-site has been below the drinking water standard dr RAL for lead and cadmium, the two metals that we have been analyzing in surface water run-off on the facility. 01 Based on my conversations with you and Mr. Weinhold, it is not likely that NSP has exceeded the tonnage requirement of 1526 tons per day on an average annual through-put basis in their existing permit and license from the City.