ECI Grade 2 Practice Test

Question 1

Stormwater runoff from chemical handling and storage area is considered a high strength wastewater?

Answer 1

True

Question 2

Chemical Containment Areas must have drains?

Answer 2

False

Question 3

How many categorical pretreatment standards has EPA Established?

Answer 3

35

Question 4

How do you sample pH Grab or Composite?

Answer 4

Grab

Question 5

What container to be used to for pH Sample?

Answer 5

Polyethylene or glass

Question 6

Holding Time of pH Sample

Answer 6

Analyze immediately

Question 7

How do you sample Oil and grease Grab or Composite?

Answer 7

Grab

Question 8

what container to be used for an Oil and grease sample?

Answer 8

Glass

Question 9

What preservative is used for an Oil and grease sample?

Answer 9

Chilled to < 6 °C, HCl or H2SO4 to pH < 2

Question 10

How do you sample Cyanide Grab or Composite?

Answer 10

Grab

Question 11

What container to be used for a Cyanide sample?

Answer 11

Polyethylene or glass

Question 12

How do you sample for Metals Grab or Composite?

Answer 12

Composite

Question 13

What tyoe of container is used for Metals Sample?

Answer 13

Polyethylene or glass

Question 14

How do you preserve a Metal samples ?

Answer 14

HNO3 to pH < 2

Question 15

How do you sample for 624 (volatiles organics) Grab or Composite?

Answer 15

Grab

Question 16

What container do use for VOC’s sampling?

Answer 16

Amber glass, w/Teflon septum lid and zero headspace

Question 17

How do you preserve a VOC Sample?

Answer 17

Chilled to < 6 °C (additional laboratory preservation required)

Question 18

What is the holding time for a VOC sample?

Answer 18

7 or 14 days, depending on specific organic

Question 19

Minimum requirement for POTW to monitor each SIU

Answer 19

POTWs are required to conduct annual compliance monitoring of all regulated pollutants at each SIU

Question 20

Minimum requirement for SIU to self monitor

Answer 20

SIUs are required to conduct self-monitoring at least once every 6 months for all regulated pollutants

Question 21

What is POTW compliance monitoring ?

Answer 21

Routine Compliance Monitoring by the Control Authority

Question 22

What is IU Self-Monitoring?

Answer 22

Monitoring conducted by the IU

Question 23

Reasons for an Increased Monitoring Frequency?

Answer 23

• IU’s continued noncompliance with pretreatment requirements
• Complaints
• IU with variable processes, production, and wastewater discharge

Question 24

The Exceptions to the Rule:POTW is Conducting All Monitoring[

Answer 24

• The POTW must conduct compliance monitoring at its SIUs least once every 6 months for all regulated pollutants
• The SIU is not responsible for conducting any self-monitoring

Question 25

The disposal of POTW Sludge is affected by industrial discharges True of False?

Answer 25

True

Question 26

What is the most heavily used toxic pollutant in leather tanning?

Answer 26

Chromium

Question 27

What is the impact of a low pH industrial wastewater on the collections system?

Answer 27

Corrosion

Question 28

What is the ERP?

Answer 28

Enforcement Response Plan

Question 29

An SIU Permit should include the means to dispose of ruoff rainwater to the saniraty sewer?

Answer 29

False

Question 30

What are refractory materials?

Answer 30

Materials difficult to remove entirely from wastewater, such as nutrients, color, taste- and odor-producing substances, and some toxic materials.

Question 31

What do you do when refused entry ?

Answer 31

See page 25 of the Industrial User Inspection and Sampling Manual for POTW's

Question 32

How to clean sampling equipment?

Answer 32

Standard Methods requires that for most types of sample analsyses , sample containers should be cleaned by the laboratory usin acid washing techniques

Question 33

What precuations should be taken before entering a confined space to collect a sample?

Answer 33

Always test the confined space air for toxic gases (H2S) , explosive or flammable gases (LEL) and Oxygen deficiency

Question 34

What is a confined space?

Answer 34

Confined space means a space that: (1) Is large enough and so configured that an employee can bodily enter and perform assigned work; and (2) Has limited or restricted means for entry or exit (for example, tanks, vessels, silos, storage bins, hoppers, vaults, and pits are spaces that may have limited means of entry.); and (3) Is not designed for continuous employee occupancy.

Question 35

How can learn more about confined spaces ?

Answer 35

https://www.dir.ca.gov/title8/5157.html

Question 36

Conventional pollutants include

Answer 36

Conventional pollutants include 1. Biochemical Oxygen Demand (BOD) 2. Cyanide. 3. Hexavalent chromium 4. Oil and grease 5. Suspended solids (SS)

Question 37

What damages could be caused to a POTW agency's collection system by industrial wastes?

Answer 37

1. Clogging the sewers. 2. Corrosion of sewer. 3. Excessive inflow and infiltration (I/I) 4. Explosions from flammable wastes. 5. Lift station failures due to lack of maintenance.

Question 38

What are the basic elements of a pretreatment program?

Answer 38

1. Frequency of inspection 2. Inspection of companies 3. Monitoring of discharges 4. Permission to discharge. 5. Pollution prevention.

Question 39

What safety equipment must be in each inspector's vehicle?

Answer 39

1. Acid neutralizers. 2. Fire extinguisher. 3. First aid kit. 4. Spill control pillows. 5. Stop signs.

Question 40

What important information is found on a Safety Data Sheet (SDS)?

Answer 40

1. Cost of chemical. 2. First aid measures. 3. Hazardous ingredients. 4. Personal protection. 5. Spill, leak, and disposal procedures.

Question 41

Why are samples collected?

Answer 41

1. Check compliance with local standards. 2. Determine strength to accurately assess discharge/use fees. 3. Search for prohibited wastes. 4. Verify industry monitoring points. 5. Verify self-monitoring.

Question 42

What information must be recorded for each sample collected?

Answer 42

1. Emergency response phone number 2. Field observations 3. Name of industry contact person 4. Time sample was collected 5. Who collected sample.

Question 43

What are the typical units used to measure flow?

Answer 43

1. CFS 2. FPS 3. GPM 4. MGD 5. Mg/L