Sampling and Analysis Scenario
Calibrate Instruments for Sampling and Field Analysis
Soil Sampling and Field Testing
Data Interpretation
While most of your answers will come from the coursework or outside regulatory sources - do not plagiarize by copying and pasting. Your answers should be wholely your work and should be cited and referenced when you access information from another source other than your writings.
: Answer the questions thoroughly on this document, and then upload this document .
Sampling and Analysis Scenario - The Incident
Calibrate Instruments for Sampling and Field Analysis
Soil Sampling and Field Testing
Identify the characteristics of your soil.
Data Interpretation
Alpha Chemical Facility 108 East 67th Street, Odessa, Texas (See Map: Page 5)
During operations transferring chemicals from storage tanks to chemical tankers for a client, John Kelley and his morning crew allowed 15,000 gallons of solvents to spill on the site, along with 635 gallons of tetrachloroethene (PCE).
The water table is at a depth of 60 feet and the base of the aquifer is about 145 feet below ground surface. Tetrachloroethene from the spill has formed a plume in the aquifer that extends eastward along East 67th Street to Stevenson Avenue.
You have been hired as an environmental technician for the remediation of the soil at this facility and where it has stretched into the public right of ways. The road in question, 67th Street, is a dirt road as well as the facility yard.
You will need to identify some information for the site sampling plan where there was a contamination of the soil in the following areas:
What sampling equipment will you need to take with you?
What preservation equipment will you need to take with you?
Summarize the steps that you will take to collect and preserve the representative samples of soil?
Where will you collect soil samples – mark on the map where you should collect samples.
Use map #2 – to mark your boreholes.
Prepare and evaluate documentation associated with sampling and field analysis
Complete a Sample Log in the chart below. You are only required to document 10 samples for the purpose of this final.
Create a general procedure for calibrating the pump. Use the following video -
Identify the personal protective equipment you should wear into the confined space with the chemical identified in the scenario.
Identify the training that you should have prior to entering the confined space.
Identify the four hazardous conditions that 29CFR 1910.120 required be checked during initial site entry.
Given 29 CFR 1910.120(q), state the three air monitoring requirements for the individual in charge of the Incident Command System (ICS).
Sample
Date
Time
Depth
Comments
AH-1
11/22/2019
0800
0 – 1’
Soil wet with chemical, strong odor present.
While on site, you are asked by the facility manager, to access a confined space area to assess whether any chemical has spilled over into this space. You agree with the proper permits filled out and rescue on site, that you will make entry and determine whether the chemicals have breached the confined space. You have your chemical-resistant suit, gloves, and goggles along with your respirator with organic vapor cartridges. You are also current on your OSHA 29 CFR 1910.120 and 1910.134 trainings. Tetrachloroethylene has a PEL of 100 ppm, a ceiling of 200 ppm, a TLV of 25 ppm, and a STEL of 100 ppm.
In case you find any chemical in the area, you will place High and Low Flow Air Sampling Pumps in the room. First, you must calibrate your pump. You decide that since you have the time, you will write out a procedure for calibrating the pump with a rotameter.
Acid or Alkaline
To test your soil’s pH, all you need is a soil sample, water and litmus paper (see the syllabus). You will also need for the purpose of this course, a small amount of an acid (vinegar or lemon juice), and a small amount of base (bleach or soapy water).
Mix a small bit of soil with the water and touch the litmus paper to the soil-water solution. Now, to get your answer, simply match the color of the litmus paper to a pH chart (they’re usually packaged with the litmus paper). Do the same with the soil and acid mixture, and the soil and base mixture. Be sure to wear gloves and glasses or goggles to protect yourself while working with these small amounts of chemicals.
Soil Texture
This hands-on test is a simple way to get an idea if your soil is sand, clay or a loamy mixture.
Moisten a small bit of soil and rub it between your thumb and forefinger. Identify the characteristics of your soil.
You must take a soil sample of dirt near your home or place of work.
Next, take a large enough sample of your soil that you can take the following pH readings:
Water
Water and Soil
Acid and Soil (1/4 cup of vinegar or lemon juice mixed with a spoonful of dirt)
Base and Soil (1/4 cup of bleach or soapy water mixed with a spoonful of dirt)
Take five photos – 1) identification of your soil, 2) water with the pH strip, 3) water/soil with the pH strip, 4) acid/soil with the pH strip, and 5) base/soil with the pH strip. Insert your photos at the end of this section.
While you have been completing the soil sampling project at Alpha Chemical, you have three other lab project reports you are working on, arrive in your email. Review the three reports and provide interpretations to your reports.
Lab 1: Drinking Water Sample for Analysis
Is the water from K. Smith’s home safe to drink?
Answer:
Parameter
ppm
EPA Limits1 (ppb)
Methods2
Arsenic
0.03
50
3114B
Barium
<0.05
100
3113B
Cadmium
<0.01
10
3113B
Chromium
0.03
50
3113B
Copper
0.05
1300
3113B
Lead
0.02
15
3113B
Mercury
<0.001
2
3112B
Selenium
<0.01
10
3114B
Silver
<0.05
50
3113B
1 Source: EPA “Safe Drinking Water Act of 7/8/87”; Copper and lead are action levels.
2 Source: American Public Health Association, “Standard Methods for the Examination of Water and Wastewater,” 18th Edition, 1992.
Lab 2: Two Air Samples of Welding Booths for Analysis
Is John Smith or Sue Johnson’s health in danger from workday time spent in the welding booth?
Answer:
Copper
mg/m3
Nickel
mg/m3
Lead
mg/m3
Chromium
mg/m3
Iron
mg/m3
John Smith
<0.01
<0.01
0.08
0.42
0.41
Sue Johnson
<0.01
0.03
0.11
0.36
0.47
OSHA TWA* Exposure Limits
1.0
1.0
0.05
0.50
10.0
*TWA = Time Weighted Average that must not be exceeded during any eight-hour work shift in a forty-hour work week.
Source: NIOSH, “Pocket Guide to Chemical Hazardous,” US Government Printing Office, 1985
Lab 3: One Soil Sample for Analysis
What can you conclude about the soil sample?
Answer:
Parameter
Total Metals
mg/kg
TCLP Metals
mg/L
TCLP Limits
mg/L
Arsenic
10.16
1.15
5.0
Barium
80.26
0.63
100.0
Cadmium
1.15
0.26
1.0
Chromium
142.10
3.36
5.0
Lead
1425.60
14.25
5.0
Mercury
<2.00
<0.05
0.2
Selenium
<2.00
<0.05
1.0
Silver
5.10
0.08
5.0
Source: “EPA Methods for the Examination of Solid Wastes,” SW-846, 3rd Edition.
MAP #1
MAP #2
INSERT PHOTOS HERE