Day Three

Question 1

Plant matter in water contain carbon and are considered

A. Fecal
B. Aerobic
C. Organic
D. Toxic

Answer 1

C. Organic

Question 2

Ideally, water storage tanks should turn over at least __________ in a 24 hour period.

A. 10%
B. 20%
C. 25%
D. 50%

Answer 2

B. 20%

Question 3

Handle Customer water quality complaints:

A. Once several people in the same area have complained
B. As time allows
C. If the water plant thinks there is a problem
D. Promptly and Seriously

Answer 3

D. Promptly and Seriously

Question 4

The __________ the water, the quicker chemical reactions take place.

A. Cleaner
B. Smellier
C. Warmer
D. Cooler

Answer 4

C. Warmer

Question 5

An Operator may feed powder activated carbon (PAC) on top of conventional filters if

A. The water is pink due to overfeeding potassium permanganate
B. There has been a drop in pH due to algae growth
C. The chlorine gas injector stopped working
D. The filter has lock up due to air binding

Answer 5

A. The water is pink due to overfeeding potassium permanganate

Question 6

Keep any and all backflow records for __________ years.

A. 2
B. 5
C. 10
D. To infinity and beyond

Answer 6

A. 2

Question 7

A system (community or non-community) that used ground water only, and serves a population less than 10,000 and does not treat for a primary contaminant is

A. ID
B. Class I
C. Class II
D. In a holler

Answer 7

B. Class I

Question 8

TTHMs and HAA5s can be formed when __________ reacts with __________

A. Chlorine; Coliform
B. Chlorine; Viruses
C. Potassium Permanganate; Organics D. Chlorine; NOM

Answer 8

D. Chlorine; NOM

Question 9

The SMCL for Iron and Manganese are __________ mg/L

A. 0.08; 0.06
B. 0.06; 0.08
C. 0.8; 0.6
D. 1.0; 10.0

Answer 9

Correct answer: 0.3mg/L; 0.05mg/L

Question 10

Breakpoint Chlorination occurs once

A. water is sterilized
B. chlorine demand has been met
C. 2-log removal begins
D. Turbidity breaks through

Answer 10

B. chlorine demand has been met

Question 11

Lead and Copper Samples should never be taken:

A. At the kitchen sink
B. At the bathroom sink
C. First thing in the morning
D. At an outside spigot

Answer 11

D. At an outside spigot

Question 12

Greensand filters are useful to remove:

A. Manganese and Iron
B. Algae Blooms
C. Lead and Copper
D. Crystal Meth

Answer 12

A. Manganese and Iron

Question 13

What is the most effective mechanical device to prevent backflow

A. Check Valve
B. RPZ
C. Air Gap
D. Joiner

Answer 13

B. RPZ

Question 14

Customers gauge water quality based on:

A. Physical Qualities
B. pH and alkalinity
C. How full the water tanks are
D. The water rates

Answer 14

A. Physical Qualities

Question 15

Radioactive __________ gas is commonly found in groundwater

A. Arsenic
B.Chlorine
C. Helium
D. Radon

Answer 15

D. Radon

Question 16

Water hardness is generally caused from the ions of calcium and

A. Minerals
B. Magnesium
C. Manganese
D. Malachite

Answer 16

B. Magnesium

Question 17

If the Sample Site Plan has to be changed, get all changes approved by the OEHS District Engineers

A. By the 10th day of the following month
B. Before the 25th
C. Prior to sample collection
D. On the full moon

Answer 17

C. Prior to sample collection

Question 18

How much time does an operator have to deliver bacT samples to the lab?

A. 24 Hours
B. 30 Hours
C. 36 Hours
D. 48 Hours

Answer 18

B. 30 Hours

Question 19

If a BacT sample does not arrive to a certified lab within 30 hours or the sample is frozen, causing the lab to reject the sample, a __________ sample must now be taken

A. Violation
B. Special Purpose
C. Routine
D. Replacement

Answer 19

D. Replacement

Question 20

The effective date for the new lead and copper rule is:

A. July 1, 2022
B. January 30, 2023
C. October 16, 2024
D. December 31, 2024

Answer 20

C. October 16, 2024

Question 21

MCL for Nitrate and Nitrite

A. 1.0 and 10.0 mg/L
B. 0.05 and 0.03 mg/L
C. 10.0 and 1.0 mg/L
D. 0.03 and 0.05 mg/L

Answer 21

C. 10.0 and 1.0 mg/L