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NPDES Level 1A Practice Test 2025/2026 – 100+ Questions on BMPs, Soil Erosion, Sediment Control, Permit Rules & Georgia State Compliance|NPDES Level 1A Practice Test 2025/2026 – Questions & Answers on BMPs, Erosion Control, Permit Rules & Georgia Complia

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This document includes over 100 NPDES Level 1A practice questions with verified answers, focusing on erosion control, sediment management, and stormwater best management practices (BMPs). It covers essential exam topics such as permit requirements, buffer zones, inspection standards, and Georgia-specific regulations. Designed for exam preparation, this practice test helps reinforce key concepts and improve confidence for passing the NPDES certification on the first attempt.

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5/1/26, 6:31 NPDES Level 1A Practice T flashcard sets |
AM Quizlet
NPDES Level 1A Practice Test 2025/2026 – 100+ Questions on
BMPs, Soil Erosion, Sediment Control, Permit Rules & Georgia
State Compliance

A slope gradient of 25% (4:1) would indicate that in a horizontal length of 100 feet,
the vertical rise would be feet.
A) 2.5
B) 12.5
C) 25
D) 4
C) 25


As rain falls to the earth, what is the very first function of vegetation?
A) It reduces detachment
B) It increases infiltration
C) It absorbs rain drop impact
D) Roots hold soil in place
A) It reduces detachment


Because of the likelihood of thunderstorms which is the worst month to schedule land
disturbing activities?
A) April
B) July
C) September
D) October
B) July


Which of the following is not a stage in Erosion and Sedimentation?
A) Detachment
B) Solubility
C) Transport
D) Deposition
B) Solubility


At what depth must sediment be removed from a silt fence barrier?
A) 12 Inches
B) 16 Inches

https://quizlet.com/search?query=NPDES-Level-1A-Practice- 1/
Test&type=sets 10

, 5/1/26, 6:31 NPDES Level 1A Practice T flashcard sets |
AMC) 1/4 full Quizlet

D) 1/2 full




https://quizlet.com/search?query=NPDES-Level-1A-Practice- 2/
Test&type=sets 10
Connected book
image
Unknown Field Manual for Erosion & Sediment Control in Georgia
Publisher: 2016 ISBN: 9781118928721 Edition: Unknown

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