WATER DISTRIBUTION LEVEL 2
TEST ASSESSMENTS & QUIZZES
WITH CORRECT SOLUTIONS A+
GRADED
K
C
LO
YC
D
U
ST
, The California Department of Public Health requires public notification when a primary
contaminant like total exceeds the 80 required quarterly running average . This type of
contaminant does not pose an immediate public health risk and requires PN within _____ days
?
30 days
Which of the following are chlorine reducing elements and compounds ?
Hydrogen sulfide, reduced manganese, ferrous iron
K
Copper and lead found in drinking water at POU is mainly due to aggressive water in the?
Customer's plumbing
C
Hard water caused by calcium and magnesium can _______ at POU
LO
increase soap consumption
Which organization certify materials and chemicals used in potable water system?
NSF/ANSI
YC
Which type of maps are used by distribution operators to help locate water mains and valves in
a water systems ?
sectional plat
D
To capture the " worse case" by collecting samples most likely to have the highest lead and
copper levels at the tap the 1991 LCR required targeted sampling for lead and copper at?
U
high-risk sampling sites
ST
When a route total coliform sample is confirmed positive for true presence of total coliforms
CDPH requires a repeat sample from the original sample point and two additional samples
within ?
5 service connections up and down stream of original sample point
Which chemical is used to neutralize chlorine in TCR water samples
sodium thiosulfate
TEST ASSESSMENTS & QUIZZES
WITH CORRECT SOLUTIONS A+
GRADED
K
C
LO
YC
D
U
ST
, The California Department of Public Health requires public notification when a primary
contaminant like total exceeds the 80 required quarterly running average . This type of
contaminant does not pose an immediate public health risk and requires PN within _____ days
?
30 days
Which of the following are chlorine reducing elements and compounds ?
Hydrogen sulfide, reduced manganese, ferrous iron
K
Copper and lead found in drinking water at POU is mainly due to aggressive water in the?
Customer's plumbing
C
Hard water caused by calcium and magnesium can _______ at POU
LO
increase soap consumption
Which organization certify materials and chemicals used in potable water system?
NSF/ANSI
YC
Which type of maps are used by distribution operators to help locate water mains and valves in
a water systems ?
sectional plat
D
To capture the " worse case" by collecting samples most likely to have the highest lead and
copper levels at the tap the 1991 LCR required targeted sampling for lead and copper at?
U
high-risk sampling sites
ST
When a route total coliform sample is confirmed positive for true presence of total coliforms
CDPH requires a repeat sample from the original sample point and two additional samples
within ?
5 service connections up and down stream of original sample point
Which chemical is used to neutralize chlorine in TCR water samples
sodium thiosulfate
