The Pittsburgh region is home to hills, heavily wooded landscapes, and numerous streams and rivers.
Some mines caught on fire while others filled up with water that overflowed into streams and rivers.
The organisation said farmers must do more to prevent sewage overflowing into streams and rivers from their land.
BBC: Weston Uphill Slipway beach fails water quality standard
The San Antonio International Airport by Saturday afternoon had recorded 9.87 inches of rain since midnight, causing nearly all streams and rivers to experience extraordinary flooding.
Each day, 300 million gallons of polluted mine water enters Pennsylvania streams and rivers, turning many of them into dead zones unable to support aquatic life.
Craig told me that the skin infections and gastrointestinal problems attributed by the plaintiffs to oil pollution were more likely caused by sewer lines that run into local streams and rivers.
They are encouraging drillers to use tainted coal mine water to hydraulically fracture gas wells in the Marcellus Shale formation, with the twin goals of diverting pollution from streams and rivers that now run orange with mine drainage and reducing the drillers' reliance on fresh sources of water.
The biosphere reserve comprises permanent snowfields and glaciers, and numerous streams and small rivers.
Last, the project will try to work out how thawing permafrost will affect the numerous streams, rivers and lakes of the Arctic.
The area, with its abundance of streams, rivers and waterfalls, is still part of the living culture of Japan and is much visited for ritual purposes and hiking, with up to 15 million visitors annually.
Dips in the road, viaducts and areas adjacent to rivers and streams are especially susceptible to flooding during or after a downpour, and you should never assume that standing water is shallow enough to negotiate.
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Another 31 million is used to irrigate crops, and 39 million more flows through rivers and streams, keeping the fish and frogs wet.
And abuses, such as dumping flowback water into rivers and streams, have occurred.
The twin pipelines that will deliver the oil and gas to the island's southern tip cross around 1, 000 rivers and streams, many of which are used by spawning salmon.
As the fur-bearing population gave out in one place, the Russians moved east and north, following the streams and portages of the rivers that flowed to the Arctic Ocean.
Back on board en route to Severobaikalsk, the land become mountainous and we passed dense forest bisected by wide rivers and glacial streams.
It added that rivers and streams could rise and flood warnings and alerts may be issued.
It said the Environment Agency had been trying to prevent any spillage into nearby rivers and streams.
The villagers have established a system of breeding trout via natural water pools, fed by the rivers and streams.
Another method, used mainly in Pennsylvania, is to simply use treatment facilities to clean up the fracking wastewater before it heads into local rivers and streams.
The clay has the effect of storing rainwater, reducing the impact of flooding, while during dry spells, the water is gradually drained back into the rivers and streams.
People will also be encouraged to bring memories, images or artefacts relating to rivers and streams to the Museum in the Park as part of a Miniature Museum of Memories.
The commission said important data on the 49, 000 miles of rivers and streams in the basin comes from a network of gauges, but funding for many of those was lost in 2011.
Having fought to protect lakes, rivers and streams as a legislator, he now plans to get all regional water and sewage policy under his thumb as firmly as he has the roads.
Throughout the basin 32 percent of rivers and streams have water quality that isn't impaired, 40 percent are slightly impaired, 23 percent are moderately impaired, and 5 percent are severely impaired, the report said.
Aid organizations inside Zimbabwe warn that the contagious disease is spreading fast since raw sewage from burst pipes near the capital, Harare, flowed into wells, rivers and streams, the only source of drinking water for many Zimbabweans.
In river basins, soils, groundwater, riparian zones, streams, rivers, lakes and reservoirs act as successive filters in which the hydrology, ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported.
"Rivers, streams and lakes are measurably cleaner than they were before the Clean Water Act, but we still have a long way to go, " said Bob Irvin of the World Wildlife Fund, the world's largest privately funded conservation organization.
After taking samples from 21 spots along the coast, researchers expected to find the most caffeine pollution in areas near wastewater treatment plants, large population centers or rivers and streams emptying into the ocean, said Elise Granek, assistant professor of Environmental Science and Management at Portland State.
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