Volume 3: Unit 4

Question 1

Remediation sampling is conducted to determine _____

Answer 1

The extent of contamination before any cleanup is conducted

Question 1

What is an important factor to consider when developing a sampling methodology?

Answer 1

Where to sample

Question 1

Which sampling device has a major limitation of not being capable of penetrating stony or rocky soil?

Answer 1

Veihmeyer tube sampler

Question 1

What are the two types of augers?

Answer 1

Bucket and Screw

Question 1

If a soil sample is mixed or blended to create an even distribution of the contamination that is in the soil, what type of sample has been collected?

Answer 1

Homogenized

Question 1

Which type of sampling strategy should be used when there is minimal site background information available and there are no visible signs of contamination?

Answer 1

Simple random

Question 1

What type of sampling strategy would be used to investigate large sites that encompass a number of soil types, topographical features, or land uses?

Answer 1

Stratified random

Question 1

What type of grid pattern increases the efficiency of hot spot soil sampling?

Answer 1

Triangular grid pattern

Question 1

It is important to know how a contaminant interacts within the soil because it ______

Answer 1

let’s you know how deep and how far out from the contamination area to sample

Question 2

Which type of sample can be used to determine if a particle size is related to contaminant distribution?

Answer 2

Sieving

Question 3

What is the major concern when sampling for volatile organic compounds?

Answer 3

Minimizing air contact and loss of vapors with soil sample

Question 4

What field analysis device is best used to verify presence or absence?

Answer 4

Hazardous material identification (HAZMAT ID)

Question 5

What field analysis device can be used to sample for metals?

Answer 5

X-ray fluorescence (XFR)

Question 6

The advantage of collecting soil gas samples in the field is it will ______

Answer 6

Indicate if there are any volatile organic compounds

Question 7

After sampling results have been obtained, how are they interpreted?

Answer 7

They are compared to the selected occupational exposure limit (OEL)

Question 8

Which of these is not a consideration when comparing anlysis results to a standard?
a) Ensure the correct laboratory analysis method was conducted.
b) Ensure the results are compared to the correct type of standard.
c) Ensure all individuals potentially affected are listed in supportive documentation.
d) Ensure the correct units of measurement for both the sample and standard are being used

Answer 8

c) Ensure all individuals potentially affected are listen to supportive documentation