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usepagov: World Water Monitoring Day
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usepagov: Keynote Speaker at World Water Monitoring Day
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usepagov: Students Testing Water on World Water Monitoring Day
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usepagov: EPA Volunteer Teaching Students on World Water Monitoring Day
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usepagov: Samples of Macro Invertebrates at World Water Monitoring Day
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usepagov: EPA Volunteer Dressed up as a Wetland on World Water Monitoring Day
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usepagov: September 18, 2013 - EPA leadership gets in on the action
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usepagov: September 18, 2013 - Testing water from the South Platte River, Denver, CO
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usepagov: September 18, 2013 - South Platte River at Confluence Park, Denver, CO
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usepagov: September 18, 2013 - Crawfish gets a closer look