CEPSCI Certification (Certified Erosion Prevention And
Sediment Control Inspector) – Questions & Answers
Why erosion prevention and sediment control are important? Right Ans -
1. Storm water runoff is leading cause of impaired water in SC. 2. Protect
downstream surface water and aquatic habitats
Erosion Right Ans - Process by which land surface is worn away by action
of water, wind, ice and gravity.
Natural erosion Right Ans - aka Geologic erosion. 1. relative slow 2. most
rapid along shorelines and stream channels 3. produces about 30% of eroded
sediment in US
Accelerated erosion Right Ans - 1. erosion at elevated rate bc of human
activity 2. agriculture, timber harvesting and construction are primary
contributors 3. accounts for remaining 70% of eroded sediment in US
Factors influencing erosion Right Ans - 1. climate (frequency, intensity and
duration of rainfall for a region) 2. season (more intense storms in summer) 3.
vegetative cover 4. topography 5. soil characteristics (texture, percentage of
organic content, structure, and permeability)
Sedimentation Right Ans - Process by which eroded material is transported
and deposited.
Negative impacts of sedimentation Right Ans - 1. screens out
sunlight/reduces water clarity. 2. fills channels and reduces capacity. 3.
pollutants attached to sediment particles can impact downstream water
quality.
NPDES Right Ans - aka National Pollutant Discharge Elimination System.
Created by the 1972 Clean Water Act.
1987 Right Ans - Amendment to CWA called Water Quality Act required
EPA to develop program to regulate storm discharges under NPDES program.
, Point source pollution Right Ans - Discharges from readily identifiable
sources such as wastewater treatment plants or industrial facilities.
Nonpoint source pollution Right Ans - Discharges that are less easily
identifiable such as runoff from urbanized or agricultural areas.
DHEC Right Ans - aka Department of Health and Environmental Control.
This regulation administers NPDES regulations, but EPA has authority to exert
jurisdiction in SC.
CGP Right Ans - aka Construction General Permit. One of several NPDES
permits administered by DHEC.
Who must obtain NPDES coverage? Right Ans - 1. land disturbing activities
greater than or equal to 1 acre. 2. land disturbance less than 1 acre within half
a mile of a receiving water body in SC Coastal Zone. 3. Exception: SFR
development NOT part of larger common plan of development.
Who is permitted? Right Ans - NPDES permits are always issued to
operator (person or company) for a particular discharge. NOT issued to parcel
or project.
Authorization of Discharges Right Ans - To receive coverage under permit,
appropriate Notice of Intent (NOI) form must be completed and submitted.
There are 3 types of NOIs and dependent on the Operator Category (refer to
chart).
Primary permittee Right Ans - 1. has operational control over Stormwater
Pollution Prevention Plan (SWPPP), construction plans and specifications,
including ability to request modifications to those plans. 2. typically owner or
developer. 3. has day-to-day operational control of those activities necessary
to ensure compliance with SWPPP.
Primary permittee requirements Right Ans - To obtain coverage under
CGP, they must submit NOI and prepare Comprehensive Stormwater Pollution
Prevention Plan (C-SWPPP)
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