Some diseases transmitted by unsafe water include typhoid, dysentery, cholera,
measles, polio, and cryptosporidiosis. (true/false)
Give this one a try later!
false (measles is not transmitted this way)
Texas standard for fluoride in the water is _____ mg/L. The federal limit is _____.
,Give this one a try later!
2.0 mg/L
4.0 mg/L
A gallon of bleach containing 5.25% sodium hypochlorite contains about _____ lbs of
chlorine.
Give this one a try later!
0.44 lbs
The action level for copper is _____ mg/L and for lead it is _____ mg/L.
Give this one a try later!
copper is 1.3 mg/L
lead is 0.015 mg/L
The objectives of water treatment are protecting of public health, supplying an
aesthetically pleasing product, and _____.
Give this one a try later!
protecting consumer property
,In water systems using surface water (or groundwater under the direct influence of
surface water) the MCL for total trihalomethanes is _____ mg/L and the MCL for HAA5
(haloacetic acids) is _____ mg/L.
Give this one a try later!
0.08 mg/L (THMs)
0.06 mg/L (HAAs)
The four national safety and quality standards for drinking water covered in the Safe
Drinking Water Act are physical, chemical, ________ and radiological.
Give this one a try later!
bacteriological
Color in water can result from _____ or _____.
Give this one a try later!
mineral or organic matter
Detention time in sedimentation basins must be at least ________ hours to allow floc to
settle.
Give this one a try later!
, 6
Surface water or groundwater prior to treatment is called _____ water.
Give this one a try later!
raw water
Besides disinfection, chlorine is used for taste and odor control and ________.
a. oxidation of iron and manganese
b. oxidation of hydrogen sulfide
c. disinfection of repairs
d. all listed
Give this one a try later!
d. all listed
The quantity of water a formation yields depends on the thickness and _____ of the
formation.
Give this one a try later!
permeability
measles, polio, and cryptosporidiosis. (true/false)
Give this one a try later!
false (measles is not transmitted this way)
Texas standard for fluoride in the water is _____ mg/L. The federal limit is _____.
,Give this one a try later!
2.0 mg/L
4.0 mg/L
A gallon of bleach containing 5.25% sodium hypochlorite contains about _____ lbs of
chlorine.
Give this one a try later!
0.44 lbs
The action level for copper is _____ mg/L and for lead it is _____ mg/L.
Give this one a try later!
copper is 1.3 mg/L
lead is 0.015 mg/L
The objectives of water treatment are protecting of public health, supplying an
aesthetically pleasing product, and _____.
Give this one a try later!
protecting consumer property
,In water systems using surface water (or groundwater under the direct influence of
surface water) the MCL for total trihalomethanes is _____ mg/L and the MCL for HAA5
(haloacetic acids) is _____ mg/L.
Give this one a try later!
0.08 mg/L (THMs)
0.06 mg/L (HAAs)
The four national safety and quality standards for drinking water covered in the Safe
Drinking Water Act are physical, chemical, ________ and radiological.
Give this one a try later!
bacteriological
Color in water can result from _____ or _____.
Give this one a try later!
mineral or organic matter
Detention time in sedimentation basins must be at least ________ hours to allow floc to
settle.
Give this one a try later!
, 6
Surface water or groundwater prior to treatment is called _____ water.
Give this one a try later!
raw water
Besides disinfection, chlorine is used for taste and odor control and ________.
a. oxidation of iron and manganese
b. oxidation of hydrogen sulfide
c. disinfection of repairs
d. all listed
Give this one a try later!
d. all listed
The quantity of water a formation yields depends on the thickness and _____ of the
formation.
Give this one a try later!
permeability
