Maryland E&S Certification Questions and Correct Answers
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Course
Maryland E&S Certification
Institution
Maryland E&S Certification
Although 2/3's of earth's surface is water, what percentage is fresh water? 3%
What percentage of Maryland residents household water comes from a surface water source? 68%
Clean water provides: *Critical wildlife habitat *an important part of Maryland's economy *enhances recreational opportunitie...
Maryland E&S Certification Questions
and Correct Answers
Although 2/3's of earth's surface is water, what percentage is fresh water? ✅3%
What percentage of Maryland residents household water comes from a surface water
source? ✅68%
Clean water provides: ✅*Critical wildlife habitat
*an important part of Maryland's economy
*enhances recreational opportunities
The average Marylander uses how many gallons of water per day? ✅100 gallons
Maryland's healthy water resources can benefit the economy by providing ✅*Water for
crop irrigation
*Water for livestock watering
*Electrical power generation
*Good quality fish and shellfish harvests
Natural erosion can be caused by ✅*Water
*Ice
*Wind
*Gravity
T or F: Raindrops can strike the soil surface at a velocity of 25-30 ft per second ✅True
Sediment pollution is harmful because it: ✅*Silts in streams, lakes, ponds, rivers, and
the Chesapeake Bay
*Increases turbidity in water which can kill submerged aquatic vegetation
*Threatens public safety and may increase flooding
*Carries over abundant nutrients into waterways
Sediment runoff to a waterway can result in eutrophication due to ✅Excessive algae
growth as a result of increased level of nutrients which enter water bodies attached to
soil particles causing depletion of oxygen
The purpose of requiring erosion and sediment control is to ✅Provide a means for land
development while protecting the environment
Land development often accelerates the erosion process because ✅*Construction can
cause soils to become compacted, inhibiting the absorption of rainfall
, *Drainage areas are often enlarged during construction, leading to increased runoff
velocities
*Vegetation, which helps to diffuse the force of raindrops, is removed
T or F: A Maryland Department of the Environment (MDE) approved inspection report
must be used when conducting self-inspection under the National Pollutant Discharge
Elimination System (NPDES) General Stormwater Permit for Construction Activity.
✅True
What year did State law mandate that all counties and municipalities in Maryland
establish an erosion and sediment control? ✅1970
Compliance with the NPDES General Permit for Stormwater Associated with
Construction Activity (which an Notice of Intent or NOI is submitted) requires the
inspection and documentation of erosion and sediment controls: ✅Weekly and the
next day after a rain event that produces runoff
A NOI (Notice of Intent) must be submitted and coverage obtained under the NPDES
General Permit for Construction Activity for any construction site that disturbs: ✅5
acres or more
If working on a construction site in Allegany County the agency with enforcement
authority to conduct erosion and sediment controls inspections would be: ✅MDE
(Maryland Department of Environment)
Areas of Special Concern with respect to an erosion and sediment control plan include:
✅*Wetlands and streams
*Highly erodible soils
*Steep slopes
The following type of enforcement action could result from violations of erosion and
sediment control requirements: ✅*Administrative penalty
*Criminal penalty
*Stop work order
*Civil Penalty
T or F: Perimeter controls must be installed before mass grading commences. ✅True
All erosion and sediment control devices must be ✅*Built according to approved
design
*Stabilized
*Inspected and approved
In general, an approved erosion and sediment control plan is valid for ✅2 years
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