| 1. |
What is the flow of water across the land surface that occurs after rainfall interception, surface storage, and infiltration reach capacity? |
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Evaporation |
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Transpiration |
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Runoff |
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None of the above |
| 2. |
Increased stream temperature, which decreases dissolved oxygen levels ____________ impacts temperature sensitive aquatic life, due to loss of riparian vegetation as well as stormwater runoff warmed by impervious surfaces. |
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Positively |
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Negatively |
| 3. |
The purpose of LID is to _____________ the altered areas of the post development hydrograph by reducing the peak discharge rate, volume, and duration of flow through the use of site design and stormwater quality control measures. |
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Increase |
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Reduce |
| 4. |
Porous pavement includes, but is not limited to, porous asphalt, porous concrete, ungrouted paving blocks, and gravel. At least what percent of the pavement at the site must be porous? |
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10% |
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30% |
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50% |
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70% |
| 5. |
A geotechnical report must be prepared by a geotechnical engineer as part of the LID Plan submittal to the Los Angeles County Department of Public Works (LACDPW). Which condition should the geotechnical report consider? |
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Topography |
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Soil type and geology |
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Groundwater |
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All of the above |
| 6. |
Early identification of soil types at the project site can reduce the number of test pit investigations and infiltration tests needed by narrowing potential test sites to areas that are ____________ likely suitable for infiltration. |
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.Most |
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Least |
| 7. |
Site design principles include all of the following except: |
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Site planning |
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Protection and restoration of natural areas |
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Land disturbance |
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Minimize impervious cover |
| 8. |
Slopes can be a major source of ____________ and should be properly protected and stabilized |
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Sediment |
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Disturbance |
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Water |
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None of the above |
| 9. |
Soils should have sufficient organic content and sorption capacity to ______________ certain pollutants, |
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Add |
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Remove |
| 10. |
As land use activities and site design practices evolve, particularly with increased incorporation of stormwater quality control measures, characteristic stormwater runoff concentrations and pollutants of concern from various land use types are likely to: |
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Stay the same |
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Change |
| 11. |
Projects may be exempt from implementation of hydromodification control measures where assessments of downstream channel conditions and proposed discharge hydrology indicate that adverse hydromodification effects to beneficial uses of natural drainage systems are: |
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Likely |
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Unlikely |
| 12. |
In particular, loading docks have the potential to contribute heavy metals, nutrients, suspended solids, oils, and grease to stormwater runoff due to: |
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Heavy truck traffic |
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Loading and unloading activities |
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All of the above |
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None of the above |
| 13. |
Outdoor loading/unloading dock areas must be checked _____________ to ensure containment of accumulated water and prevention of stormwater run-on. |
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One time |
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Three times |
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Periodically |
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Never |
| 14. |
Plants with similar water requirements and water should be grouped: |
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Apart |
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Together |
| 15. |
Choose plants that _______________ the need for fertilizer and pesticides. |
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Maximize |
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Minimize |
| 16. |
Sand barriers can be applied _______________ foundations to deter termites, as they cannot tunnel through sand. |
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Inside |
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Underneath |
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Around |
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None of the above |
| 17. |
It is recommended to store collected manure on _______________ to reduce contact with stormwater runoff. |
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Low ground |
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High ground |
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Water |
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None of the above |
| 18. |
The bioretention area should be vegetated to resemble a terrestrial forest community ecosystem, which is dominated by understory trees, a shrub layer, and herbaceous ground cover. Select vegetation that: |
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Will be dense and strong enough to stay upright, even in flowing water; |
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Has minimum need for fertilizers |
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Is not prone to pests and is consistent with Integrated Pest Management practices |
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All of the above |
| 19. |
Use of pressure-treated wood or galvanized metal at or around a bioretention area is: |
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Recommended |
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Prohibited |
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Allowed |
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None of the above |
| 20. |
Pretreatment refers to design features that provide settling of _____________ particles before stormwater runoff enters a stormwater quality control measure in order to reduce the long-term maintenance burden |
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Large |
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Small |
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