NPDES LEVEL 1A ACTUAL EXAM TEST BANK 2026/2027 PRACTICE
QUESTIONS AND STUDY GUIDE ACCURATE EXAM COMPLETE
APPROVED QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (100% CORRECT VERIFIED ANSWERS) CURRENTLY
UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+ |FULL
REVISED NPDES LEVEL 1A EXAM | INSTANT DOWNLOAD PDF
|BRAND NEW!
1. Under the Clean Water Act, what does NPDES stand for?
A) National Pollution Discharge Elimination System
B) National Pollutant Discharge Elimination System
C) National Permit Discharge Elimination System
D) Non-Point Discharge Elimination System
CORRECT ANSWER: B) National Pollutant Discharge
Elimination System
Rationale: The National Pollutant Discharge Elimination System
(NPDES) is the permit program regulated under the Clean Water
Act (CWA) to control water pollution by regulating point sources
that discharge pollutants into U.S. waters.
2. Which type of NPDES permit covers stormwater discharges from
construction activities disturbing 1 or more acres?
,A) Individual permit
B) General permit (CGP – Construction General Permit)
C) Pesticide general permit
D) Pretreatment permit
CORRECT ANSWER: B) General permit (CGP – Construction
General Permit)
Rationale: Most construction sites use the Construction General
Permit (CGP), a general permit that covers multiple similar
discharges. This is the most common permit type for construction
stormwater compliance.
3. What is the primary pollutant of concern for construction
stormwater discharges?
A) Volatile organic compounds
B) Sediment (total suspended solids)
C) Chlorine
D) Dissolved oxygen
CORRECT ANSWER: B) Sediment (total suspended solids)
,Rationale: Sediment is the leading pollutant from construction sites,
causing habitat destruction, increased turbidity, and degradation of
receiving water bodies. TSS is the primary parameter monitored on
construction sites.
4. An NOI (Notice of Intent) must be submitted at least how many
days prior to commencement of land disturbance?
A) 1 day
B) 2 days (48 hours)
C) 5 days
D) 7 days
CORRECT ANSWER: B) 2 days (48 hours)
Rationale: The NOI must be submitted at least 2 days (48 hours)
before land disturbance begins. The NOI includes project
information, acreage, receiving waters, and BMP descriptions.
5. When must a Notice of Termination (NOT) be submitted?
A) When construction has just started
, B) When final stabilization has been achieved on the entire site and
temporary BMPs have been removed or stabilized
C) When the project is 50% complete
D) When the permit has been active for one year
CORRECT ANSWER: B) When final stabilization has been
achieved on the entire site and temporary BMPs have been removed
or stabilized
Rationale: A NOT is submitted when the project has reached final
stabilization (uniform vegetative cover of at least 70% density, or
equivalent permanent stabilization) and all permit conditions have
been met.
6. Under the Georgia Erosion and Sedimentation Act, a Land
Disturbing Activity (LDA) permit is required for any activity that
disturbs how much land area?
A) 1/4 acre or more (0.25 acre)
B) 1 acre or more
C) 5 acres or more
D) 10 acres or more
QUESTIONS AND STUDY GUIDE ACCURATE EXAM COMPLETE
APPROVED QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (100% CORRECT VERIFIED ANSWERS) CURRENTLY
UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+ |FULL
REVISED NPDES LEVEL 1A EXAM | INSTANT DOWNLOAD PDF
|BRAND NEW!
1. Under the Clean Water Act, what does NPDES stand for?
A) National Pollution Discharge Elimination System
B) National Pollutant Discharge Elimination System
C) National Permit Discharge Elimination System
D) Non-Point Discharge Elimination System
CORRECT ANSWER: B) National Pollutant Discharge
Elimination System
Rationale: The National Pollutant Discharge Elimination System
(NPDES) is the permit program regulated under the Clean Water
Act (CWA) to control water pollution by regulating point sources
that discharge pollutants into U.S. waters.
2. Which type of NPDES permit covers stormwater discharges from
construction activities disturbing 1 or more acres?
,A) Individual permit
B) General permit (CGP – Construction General Permit)
C) Pesticide general permit
D) Pretreatment permit
CORRECT ANSWER: B) General permit (CGP – Construction
General Permit)
Rationale: Most construction sites use the Construction General
Permit (CGP), a general permit that covers multiple similar
discharges. This is the most common permit type for construction
stormwater compliance.
3. What is the primary pollutant of concern for construction
stormwater discharges?
A) Volatile organic compounds
B) Sediment (total suspended solids)
C) Chlorine
D) Dissolved oxygen
CORRECT ANSWER: B) Sediment (total suspended solids)
,Rationale: Sediment is the leading pollutant from construction sites,
causing habitat destruction, increased turbidity, and degradation of
receiving water bodies. TSS is the primary parameter monitored on
construction sites.
4. An NOI (Notice of Intent) must be submitted at least how many
days prior to commencement of land disturbance?
A) 1 day
B) 2 days (48 hours)
C) 5 days
D) 7 days
CORRECT ANSWER: B) 2 days (48 hours)
Rationale: The NOI must be submitted at least 2 days (48 hours)
before land disturbance begins. The NOI includes project
information, acreage, receiving waters, and BMP descriptions.
5. When must a Notice of Termination (NOT) be submitted?
A) When construction has just started
, B) When final stabilization has been achieved on the entire site and
temporary BMPs have been removed or stabilized
C) When the project is 50% complete
D) When the permit has been active for one year
CORRECT ANSWER: B) When final stabilization has been
achieved on the entire site and temporary BMPs have been removed
or stabilized
Rationale: A NOT is submitted when the project has reached final
stabilization (uniform vegetative cover of at least 70% density, or
equivalent permanent stabilization) and all permit conditions have
been met.
6. Under the Georgia Erosion and Sedimentation Act, a Land
Disturbing Activity (LDA) permit is required for any activity that
disturbs how much land area?
A) 1/4 acre or more (0.25 acre)
B) 1 acre or more
C) 5 acres or more
D) 10 acres or more
