Coliform - Study guides, Class notes & Summaries

Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates - ANSWER clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba histolytica d. salmonella typhosa - ANSWER coliform

illusion of invulnerability Members ignore obvious danger, take extreme risk, and are overly optimistic collective rationalization Members discredit and explain away warning contrary to group thinking. illusion of morality members believe their decisions are morally correct, ignoring the ethical consequences of their decisions excessive stereotyping The group constructs negative stereotypes of rivals outside the group. pressure for conformity Members pressure any in the group who expres...

REHS Exam Questions and Answers 100% CorrectREHS Exam Questions and Answers 100% CorrectREHS Exam Questions and Answers 100% CorrectREHS Exam Questions and Answers 100% Correct Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates - ANSWER-clostridium sporulates The presence of which of the following is mo...

Wastewater Lab Analyst Exam Test Questions And Revised Correct Answers You have 0.01 mg of Manganese in 200 mL. How much do you have in 1L? - ANSWER : 0.05 mg In chemistry, what does the word Normality mean? - ANSWER : gram equivalent weights of reagent chemical per liter of solution The conductivity of de-ionized water should have how many microhmos/cm? - ANSWER : less than 0.2 Results of batci test are expressed as what? - ANSWER : coliforms per 100 mL How to report TN...

State Agency responsible for enforcing the safe drinking water act in Texas (Ans- Texas Commission on environmental Quality What minerals can cause water hardness (Ans- Calcium and magnesium A public water system must at all times provide (Ans- Adequate quantity of water, pressure, and disinfection A source groundwater would be (Ans- aquifer Fecal coliform organisms sometimes found in water supplies are an indication that (Ans- Water supply is contaminated, harmful bacteria m...

Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates - clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba histolytica d. salmonella typhosa - coliform Which of the...

Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates correct answer: clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba histolytica d. salmonella typhosa corre...

CPH Full Study Guide with Complete Solutions Select the qualitative method that collects data through a simultaneous conversation with a group of people. informant interviews urse analysis ys groups - Correct Answer groups A district health department is trying to decide whether to invest in interpretation services and translated materials to address local language barriers, address needs of limited English proficient (LEP) clients and meet Federal requirements. The Four Factor Analys...

According to the Safe Drinking Water Act the basic definition of a public water supply system is any water system that supplies water for human consumption that serves: - 15 service connection or over 25 persons for over 60 days a year What federal law regulates public water supplies? - Safe Drinking Water Act What cause water to move through pores in soil and rocks ? - Gravity What are disease producing bacteria called? - Pathogenic A presence/absence coliform test utilizes - color change...

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