ECI Grade 2 Practice Test Flashcards
ECI Grade 2 Practice Test
Stormwater runoff from chemical handling and storage area is considered a high strength wastewater?
True
Chemical Containment Areas must have drains?
False
How many categorical pretreatment standards has EPA Established?
35
How do you sample pH Grab or Composite?
Grab
What container to be used to for pH Sample?
Polyethylene or glass
Holding Time of pH Sample
Analyze immediately
How do you sample Oil and grease Grab or Composite?
Grab
what container to be used for an Oil and grease sample?
Glass
What preservative is used for an Oil and grease sample?
Chilled to < 6 °C, HCl or H2SO4 to pH < 2
How do you sample Cyanide Grab or Composite?
Grab
What container to be used for a Cyanide sample?
Polyethylene or glass
How do you sample for Metals Grab or Composite?
Composite
What tyoe of container is used for Metals Sample?
Polyethylene or glass
How do you preserve a Metal samples ?
HNO3 to pH < 2
How do you sample for 624 (volatiles organics) Grab or Composite?
Grab
What container do use for VOC’s sampling?
Amber glass, w/Teflon septum lid and zero headspace
How do you preserve a VOC Sample?
Chilled to < 6 °C (additional laboratory preservation required)
What is the holding time for a VOC sample?
7 or 14 days, depending on specific organic
Minimum requirement for POTW to monitor each SIU
POTWs are required to conduct annual compliance monitoring of all regulated pollutants at each SIU
Minimum requirement for SIU to self monitor
SIUs are required to conduct self-monitoring at least once every 6 months for all regulated pollutants
What is POTW compliance monitoring ?
Routine Compliance Monitoring by the Control Authority
What is IU Self-Monitoring?
Monitoring conducted by the IU
Reasons for an Increased Monitoring Frequency?
- IU’s continued noncompliance with pretreatment requirements
- Complaints
- IU with variable processes, production, and wastewater discharge
The Exceptions to the Rule:POTW is Conducting All Monitoring[
- 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
The disposal of POTW Sludge is affected by industrial discharges True of False?
True
What is the most heavily used toxic pollutant in leather tanning?
Chromium
What is the impact of a low pH industrial wastewater on the collections system?
Corrosion
What is the ERP?
Enforcement Response Plan
An SIU Permit should include the means to dispose of ruoff rainwater to the saniraty sewer?
False
What are refractory materials?
Materials difficult to remove entirely from wastewater, such as nutrients, color, taste- and odor-producing substances, and some toxic materials.
What do you do when refused entry ?
See page 25 of the Industrial User Inspection and Sampling Manual for POTW’s
How to clean sampling equipment?
Standard Methods requires that for most types of sample analsyses , sample containers should be cleaned by the laboratory usin acid washing techniques
What precuations should be taken before entering a confined space to collect a sample?
Always test the confined space air for toxic gases (H2S) , explosive or flammable gases (LEL) and Oxygen deficiency
What is a confined space?
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.
How can learn more about confined spaces ?
https://www.dir.ca.gov/title8/5157.html
Conventional pollutants include
Conventional pollutants include
- Biochemical Oxygen Demand (BOD)
- Cyanide.
- Hexavalent chromium
- Oil and grease
- Suspended solids (SS)
What damages could be caused to a POTW agency’s collection system by industrial wastes?
- Clogging the sewers.
- Corrosion of sewer.
- Excessive inflow and infiltration (I/I)
- Explosions from flammable wastes.
- Lift station failures due to lack of maintenance.
What are the basic elements of a pretreatment program?
- Frequency of inspection
- Inspection of companies
- Monitoring of discharges
- Permission to discharge.
- Pollution prevention.
What safety equipment must be in each inspector’s vehicle?
- Acid neutralizers.
- Fire extinguisher.
- First aid kit.
- Spill control pillows.
- Stop signs.
What important information is found on a Safety Data Sheet (SDS)?
- Cost of chemical.
- First aid measures.
- Hazardous ingredients.
- Personal protection.
- Spill, leak, and disposal procedures.
Why are samples collected?
- Check compliance with local standards.
- Determine strength to accurately assess discharge/use fees.
- Search for prohibited wastes.
- Verify industry monitoring points.
- Verify self-monitoring.
What information must be recorded for each sample collected?
- Emergency response phone number
- Field observations
- Name of industry contact person
- Time sample was collected
- Who collected sample.
What are the typical units used to measure flow?
- CFS
- FPS
- GPM
- MGD
- Mg/L
