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CLEAR WATER AT OUTLET OF SEWAGE TREATMENT PLANT IS CLEANER THAN THE WATER OF THE STREAM IT WILL BE DUMPED INTO - NARA - 543803
Summary
Public domain image - Environmental protection federal program, the 1970s, color photographs, no copyright restrictions - Picryl description
Tags
Date
1972 - 1977
Source
U.S. National Archives and Records Administration
Copyright info
public domain
