Prepared by S2C2 inc.

IntroductionIntroduction

The following tests were completedThe following tests were completed using Geoprobe’s Membrane Interface Probe (MIP) with Heated Trunkline ( )(HTL).The purpose of these tests is to showThe purpose of these tests is to show response of Photoionization detector (PID) and Halogen specific detector ( ) g p(XSD) over a range of trichloroethene (TCE) concentrations.

7 00E+06

Membrane Interface Probe HTL - TCE Response Test - XSD

6.00E+06

7.00E+06

200 ppm

400 ppmNotes:This graph shows XSD Response over a range of TCE standards with respect to time.  Actual XSD response in the field will differ from the l b t t t d t th

5.00E+06

V) 100 ppm

200 ppmlaboratory test due to the nature of the formation (i.e., matrix composition, saturation, etc.), actual chemical constituents present, as well as the phase of the chemical constituents (i e vapor dissolved solid)

3 00E+06

4.00E+06

tor R

espo

nse

(uV

50 ppm

100 ppm(i.e., vapor, dissolved, solid). 

MIP configuration:  Heated Trunkline; PID and XSD detector in‐line.  XSD detector set to medium sensitivity.Test completed 12/10/2009.

2.00E+06

3.00E+06

Det

ec

XSD (uV)

25 ppm

1.00E+06

500 ppb 1 ppm

5 ppm

10 ppm

0.00E+000 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000

Time (Seconds)

150 ppbpp

500,000

Peak XSD Response ‐ Trichloroethene ‐MIP HTL 

400,000

450,000Notes:This graph shows peak XSD response over a broad range of standard concentrations. Actual XSD response in the field

y = 1E‐08x2 ‐ 0.027x + 10951R² = 0.9839

300,000

350,000

ug/L)

will differ from the laboratory test due to the nature of the formation (i.e., matrix composition, saturation, etc.), actual chemical constituents present, as well as the h f th h i l

200,000

250,000

CE Con

centration

 (u phase of the chemical constituents (i.e., vapor, dissolved, solid).

MIP configuration: Heated Trunkline; PID and XSD detector in-line. XSD detector set to medium

100 000

150,000

,

TC

Peak XSD Response

detector set to medium sensitivity. Test completed 12/10/2009.

0

50,000

100,000

0

0.00E+00 1.00E+06 2.00E+06 3.00E+06 4.00E+06 5.00E+06 6.00E+06 7.00E+06

Peak XSD Response (uV)

1 00E+07

Membrane Interface Probe HTL - TCE Response Test - PID

8 00 06

9.00E+06

1.00E+07

400 ppm

Notes:This graph shows PID Response over a range of TCE standards with respect to time.  Actual PID response in the field will differ from the l b t t t d t th

7.00E+06

8.00E+06

V)

200 ppm

laboratory test due to the nature of the formation (i.e., matrix composition, saturation, etc.), actual chemical constituents present, as well as the phase of the chemical constituents (i e vapor dissolved solid)

5.00E+06

6.00E+06

ctor

Res

pons

e (u

V (i.e., vapor, dissolved, solid). 

MIP configuration:  Heated Trunkline; PID and XSD detector in‐line.  XSD detector set to medium sensitivity.Test completed 12/10/2009.

3.00E+06

4.00E+06

Det

ec

PID (uV)50 ppm

100 ppm

1.00E+06

2.00E+06

500 b 1 5

10 ppm

25 ppm

0.00E+000 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000

Time (Seconds)

500 ppb 1 ppm 5 ppm

500,000

Peak PID Response ‐ Trichloroethene ‐MIP HTL 

400,000

450,000Notes:This graph shows peak PID response over a broad range of standard concentrations. Actual PID response in the field will

y = 4E‐09x2 + 0.011x + 4265.4R² = 0.9915

300,000

350,000

ug/L)

differ from the laboratory test due to the nature of the formation (i.e., matrix composition, saturation, etc.), actual chemical constituents present, as well as the phase of the h i l tit t (i

200,000

250,000

CE Con

centration

 (u chemical constituents (i.e., vapor, dissolved, solid).

MIP configuration: Heated Trunkline; PID and XSD detector in-line. XSD detector set to medium sensitivity Test

100 000

150,000

,

TC

Peak PID Response

sensitivity. Test completed 12/10/2009.

0

50,000

100,000

0

0.00E+00 1.00E+06 2.00E+06 3.00E+06 4.00E+06 5.00E+06 6.00E+06 7.00E+06 8.00E+06 9.00E+06 1.00E+07

Peak XSD Response (uV)

Key PointsKey Points

These test show the working range ofThese test show the working range of the XSD (150 ppb to greater than 400 ppm TCE) and PID detectors (~1 ppm to pp ) ( ppgreater than 400 ppm TCE).Other chlorinated specific detectors (i.e.,Other chlorinated specific detectors (i.e., ECD) do not have this working range. The broader working range of the XSDThe broader working range of the XSD detector allows for more exact modeling of XSD results.