WATER POLLUTION

4. sampling method that can determine the overall water quality
7. _______ fences serve as filter to slowly release filtered water
8. one of the method to determine the organic pollutants in surface water
9. method for forming sediment ponds
10. example of chemical measures in dust control
11. used at the basin inlet to prevent erosion
12. ________ control is a method to prevent exposed soil from being transported by wind
14. measured by comparing the water sample with standard color solutions
16. Examples of ________ solids are plankton, algae and fine organic debris
17. measured and expressed in terms of a threshold odor number
18. scattered or diffuse point of discharge
19. measure of the ability of water to pass an electrical current
21. relatively depends on color, volume, depth of water and time of year
22. sand bag _______ serve as a filter to slowly release filtered water
24. One of example _________ physical parameters is color, odor and taste
25. silt fences must be inspected after _____ events
26. single sampling method

1. low conductivity
2. the higher the concentration, the better the water quality
3. pH of 7
5. substance that can contaminated water
6. drains _____ protection are temporary devices constructed around storm drains
7. used in BOD and COD laboratory test
10. the pond designed to reduce peak storm flows & flooding
13. can lead to silt bearing runoff and sediment pollution
15. can be determined only after 5 days
20. to cover unused fill dirt
21. the higher the value of this parameter will effect the clarity of water
23. measured in scale between 0 to 14
24. device used to attach meter (for measuring pH or DO)