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ILLINOIS EPA C CLASS WATER LICENSE EXAM 2025 | ACTUAL EXAM QUESTIONS WITH SOLUTIONS

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ILLINOIS EPA C CLASS WATER LICENSE EXAM 2025 | ACTUAL EXAM QUESTIONS WITH SOLUTIONS

Institution
ILLINOIS EPA C CLASS WATER LICENSE
Course
ILLINOIS EPA C CLASS WATER LICENSE

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ILLINOIS EPA C CLASS WATER LICENSE EXAM
2025 | ACTUAL EXAM QUESTIONS WITH
SOLUTIONS




1 PSI = ? FT -correct-answer-2.31 FT




Cathodic Protection -correct-answer-Prevents Corrosion




What is C-Factor? -correct-answer-Roughness of Inner pipe (140+ Required)




Types of Water Main -correct-answer-Grey Sand Cast, Asbestos, Steel Pipe, Plastic,
Ductile Iron, Concrete Pipe




Types of Water Service Lines -correct-answer-Copper, PVC




What is the standard service line size? -correct-answer-1"

, 2|Page




How far should a Water line be from a Sewer Line? -correct-answer-10' horizontal
and 18" vertical unless in water main quality casing




When is shoring needed? -correct-answer-5' deep or more




What chemicals can you use to disinfect a water main? -correct-answer-CL2 Gas or
Liquid, NaOCL - Sodium Hypochlorite, Ca(OCL)2 - Calcium Hypochlorite




What type of methods are there to disinfect a water main? -correct-answer-Slug
Method, Continuous Feed, Tablet Method




What is the accuracy of a water meter? -correct-answer-98.5% - 101.5%




What is the MAC for Lead? -correct-answer-.05 mg/L




What is the Action level for Lead? -correct-answer-.015 mg/L
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ILLINOIS EPA C CLASS WATER LICENSE
Course
ILLINOIS EPA C CLASS WATER LICENSE

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Uploaded on
August 19, 2025
Number of pages
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Written in
2025/2026
Type
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Questions & answers

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  • illinois epa c class water license
  • illinois epa c class water license exam 2025
  • illinois epa c class water license qa
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