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ILLINOIS EPA C CLASS WATER LICENSE EXAM 2026 LATEST UPDATE QUESTIONS AND CORRECT VERIFIED ANSWERS ALREADY GRADEDE A+

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ILLINOIS EPA C CLASS WATER LICENSE EXAM 2026 LATEST UPDATE QUESTIONS AND CORRECT VERIFIED ANSWERS ALREADY GRADEDE A+

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 2026 LATEST
UPDATE QUESTIONS AND
CORRECT VERIFIED ANSWERS
ALREADY GRADEDE A+

Fe - ANS-Iron



Pb - ANS-Lead



Mg - ANS-Magnesium



Mn - ANS-Manganese



No3 - ANS-Nitrate



THM - ANS-Trihalomethanes



CH4 - ANS-Methane



SO4 - ANS-Sulfate



What are some water related diseases? - ANS-Typhoid fever, Guardia,
Cryptosporidium, Hepatitis



When must a boil order be passed out? - ANS-When the main goes
below 20 PSI

, The definition of a public water supply is? - ANS-15 service
connections, or serving at least 25 persons for at least 60 days



H2O - ANS-Water



Cl2 - ANS-Chlorine




1 PSI = ? FT - ANS-2.31 FT



Cathodic Protection - ANS-Prevents Corrosion



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



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



Types of Water Service Lines - ANS-Copper, PVC



What is the standard service line size? - ANS-1"



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



When is shoring needed? - ANS-5' deep or more



What chemicals can you use to disinfect a water main? - ANS-CL2 Gas or
Liquid, NaOCL - Sodium Hypochlorite, Ca(OCL)2 - Calcium Hypochlorite
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ILLINOIS EPA C CLASS WATER LICENSE
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ILLINOIS EPA C CLASS WATER LICENSE

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Uploaded on
May 17, 2026
Number of pages
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Written in
2025/2026
Type
Exam (elaborations)
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  • illinois epa c class water license
  • illinois epa c class water license exam 2026
  • illinois epa c class water license
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