Class C Water Exam Prep Exam And Actual Answers 2024

THM are caused by - Answer Reaction of chlorinated water with humic materials found in surface water sources THMs in finished water can cause - Answer Cancer What is the MCL for Trihalomethanes - Answer 0.1 mg/L Nitrate in levels above ______ mg/L can cause blue baby disease - Answer 10 Water main definition - Answer Any line that passes one property to reach another parcel of property Name three water borne diseases - Answer Typhoid, infectious hepatitis, and cholera How much pressure in one foot of elevation offer? - Answer .433 psi Velocity of flow in a water main is expressed in _________ - Answer Feet per second What is the industry standard for acceptable water loss in a public water supply? - Answer 14% or less The average flow from a 5/8" x 3/4" water meter is _________ gpm - Answer 18-20 gpm How many pounds of water in a cubic foot of water? - Answer 62.4 pounds What is the IDPH required level of fluoride - Answer .6 mg/L - .8 mg/L What type of test is most commonly used for testing fluoride levels? - Answer SPADNS