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AWWA Operator Certification Study Guide 4thED. - Water Treatment Sample Test 3 (2024) Latest Questions & Answers!!

Water Treatment Operator Certification Study Guide (AWWA) Questions with 100% Correct Answers | Latest Version 2024/2025 | Expert Verified | Ace the Test

AWWA Basic Water Treatment

AWWA, ADEM Grade 4 Laboratory Analysis - Equipment and Maintenance The,100% Solved What test is done by a lab to determine data quality? spiked tests samples A beaker is used primarily for mixing chemicals What is the primary constituent of the pH-causing ions in a water sample if the pH is above 10? OH-1 Coliform bacteria will produce gas in _____broth at ____within____ lactose or lauryl tryptose, 35.5 C, 24-48hrs Number of samples under the Total coliform Rule ...

Spontaneous combustion can occur if activated carbon is mixed with... - Potassium permanganate If chemical solutions gets on a person's skin, the area should be flushed _______________, and if the chemical dust are inhaled ______________________. - with large quantities of water, consult a physician immediately Who esablishes MCLs? - State and federal regulations If a filter's turbidity exceeds _____ NTU in the first 4 hours of a given filter run for two consecutive _________samples, th...

CERT D - WTP - LABORATORY ANALYSIS - AWWA BOOK

AWWA Operator Certification Study Guide 4thED. - Water Treatment Sample Test 3 Questions and Answers The concentration of chlorine that is immediately dangerous to health and life (IDHL) is _____ parts per million. 30ppm The common rate of operation of a rapid sand filter is considered to be _____ gallons per square foot per minute. 2 to 6 An operator inspects valves to determine that they are holding properly by... a pressure test Trihalomethane (THM) precursors are ___...

Which disinfectant would work best against cryptosporidium? - Ozone The pH of a water sample is greater that the pHs so the Langlier index? - Indicates the water is scale forming. When water high in calcium bicarbonate is softened by ion exchange - Sodium bicarbonate remains in the product water. Lime softening can effectively disinfect water because: - The pH level is higher than 10.5 A noncarbonate hardness compound is - MgSO4 What term refers to the reintroduction of carbon dioxide int...

A watercourse that flows continuously at all times of the year is known as what? - Perennial stream What is defined as 'the killing or inactivation of pathogenic organisms in water'? - Disinfection Free chlorine residual values are based on a contact time of how long? - 10 mins What time of day does algae cause the pH of the water decrease? - Night time What contributes to the creation of algae blooms? - Increased nutrients What is found mainly in groundwater sources and forms a precipit...

Which agency sets legal limits on the concentration levels of harmful contaminants in potable water distributed to customers? - ️️US Environmental Protection Agency The number of monthly distributions system bacteriologiacal samples required is - ️️Based on the population served What is the maximum contaminant level for total trihalomethanes (TTHM) in the united States? - ️️0.080 mg/L Under the Surface Water Treatment Rule, disinfection residuals must be collected at the sam...