When too much nitrogen or phosphorous flows into our waters, THIS condition can result, where there is so little oxygen in the water that few fish can survive

This Michigan city suffered catastrophic lead contamination of its water.

This percentage of watersheds in the Western U.S. are contaminated by mining pollution.

When a sewage system or a wastewater treatment plant is overwhelmed by stormwater, THIS yucky thing can happen.

These are the TWO main sources of agricultural nutrient pollution.

These are two of the many health problems that can result from exposure to lead.

This is a major source of water pollution from mines.

While in nature stormwater percolates down into the soil, THESE types of surfaces funnel stormwater into nearby waterways or our sewage systems.

Agricultural pollution contaminated the drinking water supply for THIS city, forcing it to warn residents not to drink the tap water.

This many lead service lines are still in use in the U.S.

This many miles of streams and headwaters that provide drinking water for millions of Americans have been permanently buried and destroyed as the result of mountain top removal.

These residential development strategies can reduce runoff pollution.

Name one practice that can reduce pollution from agriculture.

This is one of many potential sources of PFAS contamination of groundwater.

This is one way that fracking can create water pollution.

This is one of the health or environmental impacts of a sewage overflow.