Stormwater Inspection and Maintenance - Quiz

How often should a visual inspection be conducted on a stormwater treatment practice?

Monthly
At least once per year
Every 5 years
Only as often as necessary

Which of these can be determined by visual inspection?

Whether or not erosion is occurring
What type of maintenance is required
When maintenance is required
All of the above

What is the most common cause for reduced performance in stormwater treatment practices?

Sediment accumulation
Invasive vegetation
Litter and debris
Bank erosion

Which of the following would require maintenance before the next rainfall?

Vegetation coverage less than 50%
Completely clogged inlet or overflow which would result in flooding
Litter, large debris, and solid waste
Excessive or invasive vegetation

Which of the following statements is TRUE for most stormwater treatment practices?

Maintenance cost, as a percent of construction costs, DECREASES as construction cost increases.
Maintenance cost, as a percent of construction costs, IS CONSTANT as construction cost increases.
Maintenance cost, as a percent of construction costs, INCREASES as construction cost increases.
Maintenance cost, as a percent of construction costs, IS NOT RELATED TO construction cost.

Proper stormwater inspection consists only of a quick, simple and visual assessment.

True
False

According to the survey conducted, maintenance costs in infiltration trenches are much higher when construction cost increase.

True
False

What is the purpose of inspections?

To determine functionality
To determine the cause(s) of poor performance
To select and schedule the most appropriate maintenance
All of the above

The primary functions of bioretention practices include:

Runoff volume and rate reduction (infiltration)
Sediment collection (settling, filtration)
Sediment deposition
A and B
None of the above

Visual inspections should be focused on:

Sediment accumulation
Vegetation management
Promoting infiltration and evapotranspiration
All of the above

When is maintenance needed for sediment deposition and tree removal?

Within 1-2 years
Within 2-4 years
Within 2-3 years
Within 1 year

Which of the following is a non-routine of preventive maintenance?

Cleanout trees and sediment
Visual inspection
Litter and debris removal
Rebuild

According to the speaker, major maintenance should be prevented because it is expensive.

True
False

Existing maintenance activities are occurring generally once per year or less.

True
False

Stormwater Inspection and Maintenance – Quiz

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

11. Question

12. Question

13. Question

14. Question

Receive Updates

Support