WorksheetsRegulation Overview
Total questions: 27
Worksheet time: 14mins
The SDWA defines a public water system as a supply of pipe water for human consumption that has at least ________ service connections or serves 25 or more persons 60or more days a year.
15
30
45
60
A community PWS is a system whose customers ________.
are full time residents
use the water occasionally or for only short periods of time.
use the water source for more than 6 months per year.
are full time residents
Identify the example of a Transient Non-Community Water System.
Camp Ground
School
Residential Home
Department Store
The enforceable regulated level which is usually set as close to the MCLG as reasonably and economically achievable describes which contamination level control.
Maximum Contaminant Level (MCL)
Maximum Contaminant Level Goal (MCLG)
Running Residual Average (RRA)
Quarterly Average (QA)
Protection from disinfectants and disinfection by-products is provided by which rule?
DDBR
FBRR
IESTR
TCR
What is the MCL for TTHM?
0.08 mg/L
0.06 mg/L
1 mg/L
4 mg/L
Under the Stage 1 DBPR, the compliance value for TTHM and HAA5 is determined by calculating a ________ during the previous 12 months for each DBP for all monitoring locations at each plant.
running annual average
maximum contaminate level
locational annual average
C x T value
What is the MCL for Arsenic?
0.01 mg/L
10 mg/L
4 mg/L
0.06 mg/L
For the treatment requirements for Cu and Pb actions levels are used instead of MCLs.
True
False
For a Total coliform positive sample three repeat samples must be taken.
True
False
CT disinfection effectiveness is bases on: (multiple answers)
Concentration of disinfectant
Contact time of disinfectant and water
Higher dosages require less contact time
Higher dosages require more contact time
Concentration of water
An assessment of the water supply system and its capacity to produce safe drinking water is known as a(n) ________________.
Sanitary Survey
Safe Water Assessment
Treatment Effectiveness Evaluation
Operations Self Assessment
Identify the best definition for Residence Time.
Average length of time water is at a given location.
Average length of time a home has been occupied.
Average time a disinfection agent has been in contact with water.
Average time a pond is uncovered.
Exposure to DBPs is considered to be _________.
chronic
acute
somatic
genetic
Compliance values for TTHM and HAA5 is determined by calculating a _________.
running annual average
running biannual average
locational 3 month average
locational monthly average
Bromate can be present in systems using ozone as a treatment option.
True
False
Turbidity is related to water __________.
transparency
smell
taste
pH
All water reservoirs should _________.
be covered
only contain treated water
only contain waste water
be uncovered
The concentration of a biological pathogen into Filter A & B filter is 10 mg/L. The outlet concentration for Filter A is 1 mg/L and the outlet concentration for Filter B is 0.1 mg/ L. Which filter has the higher LVR and what is the LVR?
B at 99%
A at 99%
B at 99.9%
A at 99.9%
Reusing treated wastewater for beneficial purposes such as agriculture and landscape irrigation, industrial processes, toilet flushing and replenishing a ground water basin is called _________.
water recycling
filter backwashing
log virus removal
sludge dump
The addition of chemicals and mixing to allow suspended solids in water to form larger particles that would more readily settle and be removed by filtration, best defines which term?
Coagulation
Sedimentation
Disinfection
Fluoridation
System found to be at high risk for fecal contamination are required to provide ________ inactivation of viruses and increased monitoring of fecal contamination.
4 log
3 log
2 log
1 log
If any Total Coliform sample is also positive for E. Coli what action is required?
The state must be notified by the end of the day on which the result was received and repeat samples are required within 24 hrs.
The state must be notified by the end of the week on which the result was received and repeat samples are required within 24 hrs.
The state must be notified by the end of the day on which the result was received and repeat samples are due within 72 hrs.
The state must be notified by the end of the week on which the result was received and repeat samples are required with 72 hrs.
The public notification rule requires reporting certain water quality violations including which of the items listed below? (multiple answers)
If the drinking water does not meet drinking water standards.
If the water system fails to test its water.
If the system has been granted a variance.
If the system has been granted an exemption.
Currently, only approved analytical methods can be used for compliance monitoring.
True
False
The FBRR minimizes potential health risk associated with recycle from such contaminants as Giardia
True
False
The USEPA does not include Operator Qualifications and certification in any of its rules.
True
False
