Volume 1

PART 01 Introduction to Water Pollution
01 Fundamentals of Environmental Engineering
02 Water Quality and Environmental Chemistry
03 Characteristics of water and water resources
04 Water pollution and pollutant discharge sources
05 Aquatic Biology
06 Water Resources Management
07 Water Environment Conservation Act
Enforcement Decree of the Water Environment Conservation Act
09 Enforcement Regulations of the Water Environment Conservation Act
10 Framework Act on Environmental Policy

PART 02 Water and Sewerage Plan
01 Basic Water Supply and Sewerage Plan
02 Water sources and water collection/storage facilities
03 Water supply facilities
04 Plumbing facilities
05 Pumps and pumping stations

PART 03 Water Pollution Prevention Technology
01 Physical processing
02 Chemical treatment
03 Biological treatment
04 Advanced processing
05 Sludge Treatment

PART 04 Water Quality Pollution Process Testing Standards
01 General Provisions, Quality Assurance/Quality Control
02 Methods for collecting, preserving, and preprocessing samples
03 Flow rate measurement method and velocity area method
04 General Items
05 Measurement methods by ion and metal

Volume 2

PART 05 Past Exam Questions by Subject
01 Subject 1: Introduction to Water Pollution Previous Exam Questions
- 2016 1st, 2nd, and 4th exam questions
- 2017 1st, 2nd, and 4th exam questions
- Past exam questions from the 1st, 2nd, and 4th exams in 2018
- Past exam questions from the 1st, 2nd, and 4th exams in 2019
- Past exam questions for the 1st, 2nd, 3rd, and 4th exams in 2020
- Past exam questions for the 1st, 2nd, and 4th exams in 2021
- 2022 1st, 2nd, and 4th exam questions
- 2023 1st, 2nd, and 4th CBT Restoration Problems
- 2024 1st, 2nd, and 4th CBT restoration problems
02 Subject 2 Water Supply and Sewerage Planning Previous Exam Questions
- 2016 1st, 2nd, and 4th exam questions
- 2017 1st, 2nd, and 4th exam questions
- Past exam questions from the 1st, 2nd, and 4th exams in 2018
- Past exam questions from the 1st, 2nd, and 4th exams in 2019
- Past exam questions for the 1st, 2nd, 3rd, and 4th exams in 2020
- Past exam questions for the 1st, 2nd, and 4th exams in 2021
- 2022 1st, 2nd, and 4th exam questions
- 2023 1st, 2nd, and 4th CBT Restoration Problems
- 2024 1st, 2nd, and 4th CBT restoration problems
03 Previous Exam Questions for Subject 3: Water Pollution Prevention Technology
- 2016 1st, 2nd, and 4th exam questions
- 2017 1st, 2nd, and 4th exam questions
- Past exam questions from the 1st, 2nd, and 4th exams in 2018
- Past exam questions from the 1st, 2nd, and 4th exams in 2019
- Past exam questions for the 1st, 2nd, 3rd, and 4th exams in 2020
- Past exam questions for the 1st, 2nd, and 4th exams in 2021
- 2022 1st, 2nd, and 4th exam questions
- 2023 1st, 2nd, and 4th CBT Restoration Problems
- 2024 1st, 2nd, and 4th CBT restoration problems
04 Subject 4: Air Pollution Process Testing Standards Previous Exam Questions
- 2016 1st, 2nd, and 4th exam questions
- 2017 1st, 2nd, and 4th exam questions
- Past exam questions from the 1st, 2nd, and 4th exams in 2018
- Past exam questions from the 1st, 2nd, and 4th exams in 2019
- Past exam questions for the 1st, 2nd, 3rd, and 4th exams in 2020
- Past exam questions for the 1st, 2nd, and 4th exams in 2021
- 2022 1st, 2nd, and 4th exam questions
- 2023 1st, 2nd, and 4th CBT Restoration Problems
- 2024 1st, 2nd, and 4th CBT restoration problems
05 Previous Exam Questions for Subject 5: Water Quality and Environment Laws
- 2016 1st, 2nd, and 4th exam questions
- 2017 1st, 2nd, and 4th exam questions
- Past exam questions from the 1st, 2nd, and 4th exams in 2018
- Past exam questions from the 1st, 2nd, and 4th exams in 2019
- Past exam questions for the 1st, 2nd, 3rd, and 4th exams in 2020
- Past exam questions for the 1st, 2nd, and 4th exams in 2021
- 2022 1st, 2nd, and 4th exam questions
- 2023 1st, 2nd, and 4th CBT Restoration Problems
- 2024 1st, 2nd, and 4th CBT restoration problems

PART 06 Latest CBT Restoration Problems
- 2025 1st Latest CBT Restoration Problem
- 2025 2nd Latest CBT Restoration Problem
- 2025 3rd Latest CBT Restoration Problem

supplement
Frequently occurring collection by type
01 Type-specific frequent occurrence theory 93 types
02 Type-specific frequent occurrence formula 51 types

Wrong answer notebook
01 Incorrect answer notebook