APES WATER POLLUTION

4. used to treat sewage as a lower cost alternative to expensive waste treatment plants
5. countries that have established drinking water standards
8. national drinking water standards that prevent human health risks
9. this river drains all or part of 31 U.S. states
12. preventing method that controls runoff and international animal feedlots
13. this oil supertanker releases large amounts of oil into Alaskas Prince William Sound in 1989
14. area containing large amounts pollutant inputs and waste in the ocean
16. river in Louisiana known to contain 500 hazardous waste sites
17. used to fertilize farmland, forest, golf courses, cemeteries, etc.
18. largest estuary in the U.S.
20. this city gets 90% of its drinking water from reservoirs in their states mountains

1. most ocean oil ____ comes from human activity on the land
2. their waste is stored in lagoons that can leake, overflow, or even rupture
3. EPA estimates 7.1 million people get sick from _____ in contaminated water in the U.S.
6. chemicals and toxic metals containing shellfish beds, kill spawning fish, and accumulate in the tissue of bottom feeders
7. experiment that aims to use market forces to reduce water pollution
10. release waterborne and airborne toxins that damage fisheries and kus fish eating birds
11. bottled water is not as pure as __________ and costs more
15. this country's households receive strips of cloth to filter out cholera products from drinking water
19. primary sewage treatment and industrial plant come from this source