Keywords: NATIONAL WATER QUALITY LABORATORY, OPERATING THE ELECTRON MICROSCOPE - NARA - 551595.jpg Scope and content General notes 551595 Local identifier 412-DA-9110 Environmental Protection Agency 12/02/1970 - NARA-Author Emmerich Donald Photographer 3045077 <br /> Duluth Saint Louis county Minnesota United States North and Central America inhabited place 4201404 46 783 -92 1 <br /> Still Picture Records Section Special Media Archives Services Division NWCS-S National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 06/1973 Record group Record Group 412 Records of the Environmental Protection Agency 1944 - 2006 Record group ARC 708 DOCUMERICA The Environmental Protection Agency's Program to Photographically Document Subjects of Environmental Concern compiled 1972 - 1977 Series ARC 542493 File unit File unit ARC Variant control numbers Agency-Assigned Identifier 152/50/009110<br /> NAIL Control Number NWDNS-412-DA-9110 Other versions <gallery> File NATIONAL_WATER_QUALITY_LABORATORY _OPERATING_THE_ELECTRON_MICROSCOPE_-_NARA_-_551595 tif tif File NATIONAL_WATER_QUALITY_LABORATORY _OPERATING_THE_ELECTRON_MICROSCOPE_-_NARA_-_551595 jpg jpg </gallery> NARA-cooperation PD-USGov Water quality |