Wastewater level 3 - Study guides, Class notes & Summaries

hazwoper 8 hour refresher test (Answered 100% Correctly) Latest 2024 hazwoper 8 hour refresher test (Answered 100% Correctly) Latest 2024 Which of the following is NOT a likely cause of a hazardous substance accident? A Broken or rusted pipes B Following standard operating procedures C Faulty valves or transfer hoses D Leaking tank b What is a hazardous substance? A Any substance defined under section 101(14) of CERCLA B Any biological agent and other disease-causing agen...

Most important factor in preventing accidents at a wastewater plant? - Answer Attitude of the employees. Plant influent appears black and has a foul odor each morning. The cause is traced to a pump station at a subdivision which is oversized for the current number of homes in the subdivision. What corrective action can you take? - Answer Decrease the distance between the on and off probes in the wet well. Which of the following best describes the term "public relations"? - Answer ...

REHS/RS Waste Water and Potable Water Questions and Answers Graded A What is the best way to fix a leaking septic tank? inject seam with an epoxy resin What are the four common causes of septic tank seepage field system failure? leaky fixtures, improper sizing, non-suitable soil, non-servicing After servicing a septic tank, what should be done with the tank or lid? replaced and secured for security purposes After a septic tank is cleaned, why shouldn't it be disinfected? Sludge on unclean wa...

CWEA Grade I Laboratory Analyst, questions and answers 2023 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) -...

CWEA COLLECTION SYSTEM MAINTENANCE GRADE 1, 2, 3 AND 4 EXAM QUESTIONS AND ANSWERS 2024/2025 GRADED A+. 2 / 9 1. Why are gasoline and volatile solvents objectionable when present in asewer?: They produce an explosion hazard 2. You should never attempt to install, maintain, repair or replace electrical equipment panels, controls, wiring or circuits unless: You know what you aredoing, are qualified and are authorized 3. What are the different areas of traffic zones?: Advance Warning Area, ...

TEXAS Wastewater Class B Exam - Complete Solutions (Answered) Before entering a manhole the operator should test for ________and oxygen levels and ________the manhole before entering. all hazardous gasses and ventilate When a municipal wastewater effluent has a high nitrate level and low ammonia level this most likely means the effluent has received a high degree of aerobic treatment Total solids in wastewater are the sum of Settleable and volatile solids This treatment device is commonly used...

Waste Water D license Study With Correct Answers. 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-...

The name of the State Agency responsible for enforcing pollution control laws in Texas is – a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission 2. The term pathogenic means – a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacteria e. Capable of Causing Disease 3. The minimum separation between sewer lines and potable water lin...

What removes Total Suspended Solids from a sample (TSS) filtration What chapter of the Texas Water Code gives T C E Q authority to control discharges in Texas. Chapter 26 Inorganic solids include sand, grit and minerals Organic solids include organic materials from plants, animals or humans A good plant influent pH is about 7.2 A simple method for indicating when to waste sludge is 30 minute settling test What is the expected organic loading of a s...