NPDES Level 1A Practice Test – Georgia Erosion &
Sediment Control, BMPs, Permit Rules (2026) Complete
Exam Questions with Verified Answers
Introduction:
This document contains a comprehensive set of NPDES Level 1A
practice questions focused on Best Management Practices (BMPs),
soil erosion, sediment control, and Georgia-specific permit
regulations. It includes verified correct answers with detailed
coverage of inspection requirements, buffer zones, sediment basins,
and regulatory agencies.
The material aligns closely with certification exam expectations
and provides a thorough review of both theoretical concepts and
practical compliance standards under Georgia law.
Exam Questions and Answers
A temporary down drain structure using a 12 inch pipe could drain
up to ________ acres.
A) 0.3
B) 0.5
C) 0.4
D) 1.0 --- correct precise answer ---D) 1.0
A retrofit utilizing a slotted board dam can be used on projects with
a larger drainage area than a retrofit utilizing perforated half round
pipe.
, A) True
B) False --- correct precise answer ---B) False
A stream channel diversion can only be constructed on streams with
a drainage area less than _________ acres.
A) 830
B) 725
C) 640
D) 500 --- correct precise answer ---C) 640
What may be used to construct a grade stabilization structure?
A) Rock
B) Cement
C) Wood
D) All of the above --- correct precise answer ---D) All of the above
The apron for a storm drain outlet is designed to accommodate the
storm water flow but the minimum length is ______ times the
outlet pipe diameter.
A) 4
B) 5
C) 6
Sediment Control, BMPs, Permit Rules (2026) Complete
Exam Questions with Verified Answers
Introduction:
This document contains a comprehensive set of NPDES Level 1A
practice questions focused on Best Management Practices (BMPs),
soil erosion, sediment control, and Georgia-specific permit
regulations. It includes verified correct answers with detailed
coverage of inspection requirements, buffer zones, sediment basins,
and regulatory agencies.
The material aligns closely with certification exam expectations
and provides a thorough review of both theoretical concepts and
practical compliance standards under Georgia law.
Exam Questions and Answers
A temporary down drain structure using a 12 inch pipe could drain
up to ________ acres.
A) 0.3
B) 0.5
C) 0.4
D) 1.0 --- correct precise answer ---D) 1.0
A retrofit utilizing a slotted board dam can be used on projects with
a larger drainage area than a retrofit utilizing perforated half round
pipe.
, A) True
B) False --- correct precise answer ---B) False
A stream channel diversion can only be constructed on streams with
a drainage area less than _________ acres.
A) 830
B) 725
C) 640
D) 500 --- correct precise answer ---C) 640
What may be used to construct a grade stabilization structure?
A) Rock
B) Cement
C) Wood
D) All of the above --- correct precise answer ---D) All of the above
The apron for a storm drain outlet is designed to accommodate the
storm water flow but the minimum length is ______ times the
outlet pipe diameter.
A) 4
B) 5
C) 6
