Domestic wastewater - Study guides, Class notes & Summaries
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TCEQ Wastewater License Exam Test Questions With Revised Correct Answers
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TCEQ Wastewater License 
Exam Test Questions With Revised 
Correct Answers 
What are the steps of the Water Use Cycle? - ANSWER : 
Environment --> Water Treatment --> Water Distribution System -- 
> Customer Use --> Wastewater Collection System --> 
Wastewater Treatment --> Environment 
What are the benefits of the collection system? - ANSWER : - 
Removal of health hazards 
- Prevention of odors and flies 
- Cleanliness and appearance 
- Comfort and convenience 
Septic vs. F...
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TCEQ Wastewater License Exam question n answers graded A+
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TCEQ Wastewater License ExamWhat are the steps of the Water Use Cycle? - correct answer Environment --> Water Treatment --> Water Distribution System --> Customer Use --> Wastewater Collection System --> Wastewater Treatment --> Environment 
 
What are the benefits of the collection system? - correct answer - Removal of health hazards 
- Prevention of odors and flies 
- Cleanliness and appearance 
- Comfort and convenience 
 
Septic vs. Fresh wastewater? - correct answer Sep...
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Waste Water D License Study Questions and Answers 2024-2025 Verified 100%
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Water Resources in Texas includes lakes, rivers, bays, estuaries, wetlands, ground water, and storm (1-3) - False 
 
Water Polluntants include organic and inorganic material, heat, and radiation (1-4) - True 
 
In Texas, Clean water is needed to provide for human comsumption and recreation, Maintain aquatic habitats for wildlife, recharge ground water, and provide for industry. (1-4) - False 
 
Two sources of water contamination are discharges and non- point source discharges (1-4) - False 
 
Ex...
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wastewater grade 1 exam Treatment updated 20-24/2025
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wastewater grade 1 exam Treatment 
updated 20-24/2025 
domestic wastewater - CORRECT ANSWER-Comes from schools, homes, hospitals, 
businesses, light industrial facilities. 
population equivalents - CORRECT ANSWER-100 lbs wastewater per day, .2 lbs 
TSS/day, .17 BOD/day 
industrial wastewater - CORRECT ANSWER-Comes from industries. Compatible 
wastes can be processed by the plant. Incompatible wastes are toxic to the plant. 
sanitary wastewater - CORRECT ANSWER-The combined domestic and indus...
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Texas Wastewater A questions with correct answers
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What is TCEQ doing to control "point source" pollution of the Texas waterways? CORRECT ANSWER-*Permitting of domestic wastewater plants 
*Permitting of industrial wastewater plants 
 
Describe proper design of force main wastewater lines. CORRECT ANSWER-Minimum two fps velocity with the smallest pump operating alone. Minimum four inch diameter pipe with 150 psi rating. 
 
What is Standard Dimension Ratio? CORRECT ANSWER-Ratio of outside pipe diameter (OD) to wall thickness (PVC) 
 
Describe pr...
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REHS Wastewater questions with answers graded A+
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REHS WastewaterSludge and scum accumulation, and the appearance of particles of solids in the effluent from a septic tank is an indication of what? 
 
a. a failure in the absorption field 
b. a septic tank in need of cleaning 
c. a water line leak 
d. the need to replace the septic tank - correct answer a septic tank in need of cleaning 
 
Which of the following soils would be most suitable for subsurface absorption of wastewater? 
 
a. mottled brown and red soil 
b. blue soil 
c. grayish soil ...
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OSSF DR TEST PRACTICE QUESTIONS WITH 100 % CORRECT ANSWERS | VERIFIED
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_______ and ________ soil textural classes are always unsuitable for standard absorptive OSSF - 
Answer-class IA and IV 
List each of the major soil horizons - Answer-surface soil A, surface soil B, and parent material 
_____________ is a term describing the ability of water to migrate through a soil profile under either 
_________ or __________ conditions. - Answer-Hydraulic conductivity, saturated, unsaturated 
Interconnected pores in the soil profile allow ______ and _______ to enter the soil...
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REHS Exam: Wastewater 2023 -24 with 100% correct answers
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How much of the population is on individual sewage disposal systems? - correct answer 1/3 of population 
 
What is the time limit for wastewater traveling to the waste water facility? Why? - correct answer 2 days 
 
Fresh wastewater is easily treated and highly putrid 
 
Septic wastewater requires more treatment, cost, and energy 
 
How fast does wastewater move through sewer pipes? - correct answer 2 feet per second 
 
Any slower and water tends to decay faster and become septic 
 
How fa...
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Wastewater Practice Test (Florida) English Examination Questions & Revised Correct Answers >> Updated 100% Guarantee Pass!!
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Wastewater Practice Test (Florida) 
English Examination Questions & 
Revised Correct Answers >> Updated 
100% Guarantee Pass!! 
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level 
disinfection is described as: - ANSWER : A chlorine residual of 
0.5 mg/L for 15 minutes at peak hourly flow 
FDEP chapter 62-604.550 (a) FAC, requires a wastewater spill 
shall be verbally reported to the state warning point no later than: 
- ANSWER : 24hrs from discovery 
What is the 'rule of...
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CWEA Grade I Laboratory Analyst Exam Questions and Answers Rated A+ Latest Update
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Chloride -️️ - Major anion found in many natural waters 
- Can impart salty taste in H2O 
What increases concentration of chloride in wastewater -️️ Chloride in human diet and 
softeners flushed into sanitary sewer system 
2 most prevalent methods of measuring chloride -️️ argentometric and mercuric nitrate 
Argentometric -️️ Titration of sample with standard solution of silver nitrate (AgNO3) 
- Indicator: Chromate ions (CrO4) 
- End point: reddish silver chromate 
Mercuric Nitr...
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