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ID#:4950
Description:Caption:
This 1976 photograph depicts a billboard in Oregon that was announcing what had been the Central Washington state, Columbia Basin Irrigation Project, making use of waters provided by the Grand Coulee Dam, and its impound of the Columbia River water flow. Water used for irrigation can produce stagnant pools, which can then act as breeding grounds for hundreds of thousands of mosquitoes, if the larvae are allowed to stand for a few days. This region was part of a Centers for Disease Control and Prevention (CDC) investigation focusing on the minimization of risks of vector-borne diseases in water resource developments. All water treatment plants must meet U.S. Environmental Protection Agency (EPA) standards.
High Resolution: Click here for hi-resolution image (6.18 MB)
Content Providers(s):CDC
Creation Date:1976
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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