CWEA Collections Grade 1 Questions with
Detailed Verified Answers
Sanitary Sewer Overflow (SO) Ans: To accurately estimate the volume of a sanitary
sewer overflow, you must have Spill Start Time, Spill End Time, and Spill Rate.
Sanitary Sewer System Management Plan Ans: The goal of a sanitary sewer system is
to provide a plan and schedule to properly manage, operate, and maintain all parts of
the system.
Basic Elements of a Safety Program Ans: The basic elements include accident
investigation, injury frequency rates, and safety policy statement.
Easement Considerations Ans: When obtaining an easement for construction and
maintenance of a collection system, access for equipment and personnel must be
considered.
Immediate Response to Board or Council Ans: If you do not know all the answers,
you should respond with the information available and update them with more.
Managing Substandard Performance Ans: Discuss the problem with the substandard
foreman and offer to help before any other action is taken.
Pipe Material Selection Ans: In selecting pipe material for maximum service life, the life
expectancy of the pipe is the most important factor.
Flow Capacity of a Sewer Line Ans: The flow capacity of a sewer line is affected by
backfill material, manhole spacing, and pipe size.
Grade Conflict Solution Ans: When a grade conflict exists between a water main and
a sewer main, the best solution is to drop the sewer service under the water main and
let it work like a siphon.
Challenges in Wastewater Collection Replacement Ans: The replacement of
wastewater collection systems in some downtown streets is difficult due to crowding
of other underground utilities.
, Rescue Service Practice Conditions Ans: Each member of the rescue service must
practice permit space rescues at least once a year in a simulated situation or by the
satisfactory performance of an actual rescue.
Camera Wedge Problem Ans: If the camera becomes wedged during a video
inspection, the first step in solving the problem is to dig up the area where the camera
is wedged.
As Built Drawings Ans: Construction drawings issued to the contractor, corrected
construction drawings showing changes made in the field installation, detailed drawings
of proposed construction, and sectional maps on file.
Category 1 Sanitary Sewer Overflows Reporting Ans: Legally Responsible Officials are
required to report within 30 days, before the end of the day, as soon as possible, or
within 2 hrs.
Span & Control Ans: Relates to the number of subordinates who can be supervised
effectively by one supervisor, which at the top level of organizations is typically 2 to 4,
3 to 5, 6 to 8, or 9 to 11.
Power Rodder Tools Ans: Tools used with a power rodder include finger grips,
pruning shears, spring blades, and videotape camera.
Sewer Rodding Tools Ans: Tools used for sewer rodding include lag screw, porcupine,
root saw, and square bar cork screw.
Selecting a Solution for Sewer Stoppage Ans: Considerations include adding a solution
to the upstream manhole to clear the stoppage, cause of stoppage, time of day, and
staffing requirements.
Invert Ans: The lowest point on the inside of a pipeline.
Emergency Stoppages in Pipelines Ans: May be cleared safely by use of balling, high
velocity cleaners, bucket machines, or kites.
© Get it right 2025 Getaway - Stuvia US All rights reserved
Detailed Verified Answers
Sanitary Sewer Overflow (SO) Ans: To accurately estimate the volume of a sanitary
sewer overflow, you must have Spill Start Time, Spill End Time, and Spill Rate.
Sanitary Sewer System Management Plan Ans: The goal of a sanitary sewer system is
to provide a plan and schedule to properly manage, operate, and maintain all parts of
the system.
Basic Elements of a Safety Program Ans: The basic elements include accident
investigation, injury frequency rates, and safety policy statement.
Easement Considerations Ans: When obtaining an easement for construction and
maintenance of a collection system, access for equipment and personnel must be
considered.
Immediate Response to Board or Council Ans: If you do not know all the answers,
you should respond with the information available and update them with more.
Managing Substandard Performance Ans: Discuss the problem with the substandard
foreman and offer to help before any other action is taken.
Pipe Material Selection Ans: In selecting pipe material for maximum service life, the life
expectancy of the pipe is the most important factor.
Flow Capacity of a Sewer Line Ans: The flow capacity of a sewer line is affected by
backfill material, manhole spacing, and pipe size.
Grade Conflict Solution Ans: When a grade conflict exists between a water main and
a sewer main, the best solution is to drop the sewer service under the water main and
let it work like a siphon.
Challenges in Wastewater Collection Replacement Ans: The replacement of
wastewater collection systems in some downtown streets is difficult due to crowding
of other underground utilities.
, Rescue Service Practice Conditions Ans: Each member of the rescue service must
practice permit space rescues at least once a year in a simulated situation or by the
satisfactory performance of an actual rescue.
Camera Wedge Problem Ans: If the camera becomes wedged during a video
inspection, the first step in solving the problem is to dig up the area where the camera
is wedged.
As Built Drawings Ans: Construction drawings issued to the contractor, corrected
construction drawings showing changes made in the field installation, detailed drawings
of proposed construction, and sectional maps on file.
Category 1 Sanitary Sewer Overflows Reporting Ans: Legally Responsible Officials are
required to report within 30 days, before the end of the day, as soon as possible, or
within 2 hrs.
Span & Control Ans: Relates to the number of subordinates who can be supervised
effectively by one supervisor, which at the top level of organizations is typically 2 to 4,
3 to 5, 6 to 8, or 9 to 11.
Power Rodder Tools Ans: Tools used with a power rodder include finger grips,
pruning shears, spring blades, and videotape camera.
Sewer Rodding Tools Ans: Tools used for sewer rodding include lag screw, porcupine,
root saw, and square bar cork screw.
Selecting a Solution for Sewer Stoppage Ans: Considerations include adding a solution
to the upstream manhole to clear the stoppage, cause of stoppage, time of day, and
staffing requirements.
Invert Ans: The lowest point on the inside of a pipeline.
Emergency Stoppages in Pipelines Ans: May be cleared safely by use of balling, high
velocity cleaners, bucket machines, or kites.
© Get it right 2025 Getaway - Stuvia US All rights reserved
