technical memo - rice creek commons

Technical Memo

-

Wenck Associates, Inc. | 1802 Wooddale Drive | Woodbury, MN 55125-2937

Toll Free 800-472-2232 Main 651-294-4580 Email [email protected] Web wenck.com

To: Shanna Schmitt, Minnesota Pollution Control Agency

Amy Hadiaris, Minnesota Pollution Control Agency

From: Joe Otte, Wenck Associates, Inc.

Copy: Rick Van Allen, Bay West

Date: 01 June 2015

Subject: Section 1010DU-1 Discrete PAH Sampling Event

TCAAP Redevelopment #2 Site

Purpose

The purpose of this correspondence is to describe and discuss the results of the Section

1010DU-1 discrete PAH sampling event that took place on May 13, 2015. The sampling

event was in response to ISM sample results from Section 1010DU-1 indicating

concentrations of B(a)P-equivalent in the 0 to 2 foot soil zone greater than the MPCA Tier 1

Residential Soil Reference Value (SRV).

ISM Sample Results - Section 1010DU-1

For reference, Tables 1 and 2, attached, provide a summary of the ISM results for Section

1010DU-1. This section was subject to a duplicate and triplicate sample set, which was

then used to calculate a 95% upper confidence limit (Table 2). The ISM results for Section

1010DU-1 indicated a 95% UCL B(a)P-equivalent concentration of approximately 5600

µg/kg. The Tier I SRV for B(A)P-equivalent is 2000 µg/kg.

Sampling Methodology

In an effort to identify potential locations exhibiting concentrations of PAHs greater than

TCAAP cleanup goals, discrete soil samples were collected immediately adjacent to the

locations of the ISM sample locations within Section 1010DU-1. ISM sample locations were

staked using GPS technology. Field personnel were able to locate the borings from the

previous ISM drilling conducted on April 14 and 15, 2015. The discrete sampling borings

were collected from within approximately 1 foot of the ISM borings. Borings were advanced

to 4 feet using a Geoprobe drilling rig to ensure adequate recovery. Samples were collected

in acetate sleeves which were immediately cut open after drilling. A representative volume

of soil from the 0 to 2 foot zone was collected and placed in laboratory-provided 4 ounce

amber glass jars. Field personnel made a visual evaluation of each core, and biased the

discrete sample if there was any indication of oily or black-colored material. Biased

sampling was only conducted on sample 1010DU-1-C27. Attached Figure 1 shows the

discrete and ISM sampling locations.

Samples were immediately placed on ice and shipped to Pace Analytical in Minneapolis for

PAHs analysis by EPA method 8270D under proper chain-of-custody procedures.

Shanna Schmitt Amy Hadiaris Minnesota Pollution Control Agency 06/01/2015

2

N:\Technical\0979 Bolander\03 Field Investigation\Section 1010 ISM PAH exceedance\Results Letter v2.docx

Discrete Sample Results – Section 1010DU-1

The results from the discrete sampling in Section 1010DU-1 indicated concentrations of

PAHs above the laboratory reporting limit in 11 of the 30 samples collected. Detected

B(a)P-equivalent concentrations ranged from a low of 1.24 µg/kg, to a high of 541.28

µg/kg. Table 3 provides a summary of discrete sampling results.

Discussion and Recommendations

The results from the discrete PAH sampling do not indicate a source area, or define a

location that could have contributed to the elevated PAH concentrations measured in the

ISM samples collected from Section 1010DU-1. This is not unexpected given the difficulty

of obtaining representative soil samples through discrete sampling. However, the discrete

sampling results do indicate that a laterally expansive release of PAHs is unlikely, and that

from a risk-based perspective, the need to remove and remediate the entire decision unit is

unnecessary.

Wenck recommends splitting the 5-acre Section 1010DU-1 area into five smaller 1-acre

decision units (DU-4 through DU-8), and conducting ISM sampling within each of these

smaller decision units. Additionally, the existing Zone 1 (0 to 2 feet below grade) will be

split into two zones; 0 to 1 feet (Zone A) and 1 to 2 feet below grade (Zone B). This finer

vertical delineation will help with cost reduction if results from any decision unit indicate

PAH concentrations greater than the SRV, as would be expected given the original DU-1

results.

Figure 2 shows the proposed layout of the five new decision units.

ISM Sample Locations and DecisionUnits within Plexus ESA Section 1010

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1010DU-1-IS-02

1010DU-1-IS-06

1010DU-1-IS-30

1010DU-1-IS-20

1010DU-1-IS-19

1010DU-1-IS-10

1010DU-2-IS-07

1010DU-1-IS-09

1010DU-1-IS-03

1010DU-2-IS-02 1010DU-2-IS-03

1010DU-1-IS-26

1010DU-2-IS-04 1010DU-2-IS-05 1010DU-2-IS-06

1010DU-1-IS-27

1010DU-1-IS-11

1010DU-1-IS-28 1010DU-1-IS-29

1010DU-1-IS-23

1010DU-1-IS-13

1010DU-1-IS-21

1010DU-1-IS-16

1010DU-1-IS-04

1010DU-1-IS-12

1010DU-1-IS-24

1010DU-1-IS-05

1010DU-1-IS-18

1010DU-1-IS-081010DU-1-IS-07

1010DU-1-IS-17

1010DU-1-IS-22

1010DU-1-IS-15

1010DU-1-IS-01

1010DU-2-IS-081010DU-2-IS-091010DU-2-IS-101010DU-2-IS-111010DU-2-IS-121010DU-2-IS-131010DU-2-IS-14

1010DU-2-IS-01

1010DU-1-IS-14

1010DU-1

1010DU-2

1010

1017

1013

3001

3008

Source: Esri, DigitalGlobe, GeoEye, i-cubed, Earthstar Geographics, CNES/Airbus DS, USDA,USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

RAMSEY COUNTYPath: \\vanessa\gis\0979\02\mxd\QAPP\SU 1010_Labels_amm.mxdDate: 5/22/2015 Time: 9:23:35 AM User: KacHD0606

60 0 6030Feet ±

Figure 1MAY 2015

Notes:Decision Unit (DU) = ISM Area within Plexus ESA Section. 2012 Aerial Photograph (Source: ESRI)

Legend!( Discrete Sample -- PAHs not detected!( Discrete Samples -- PAHs Detected

Site BoundariesESA Sections (Source: Plexus)Decision Unit Boundary

1-UD0101 Decision Unit IDSampling Grid

ISM Sample Locations and DecisionUnits within Plexus ESA Section 1010

1-UD0101

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1010DU-1

1010DU-2

1010DU-6

1010DU-7

1010DU-4

1010DU-5

1010DU-8

1010

1017

1013

3001

3008

Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS,AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

RAMSEY COUNTYPath: L:\0979\02\mxd\QAPP\SU 1010_V2_Labels.mxdDate: 5/27/2015 Time: 8:32:17 AM User: ShuJC0243

60 0 6030Feet ±

Figure

Notes:Decision Unit (DU) = ISM Area within Plexus ESA Section. 2012 Aerial Photograph (Source: Bing Maps)

MAY 2015

Legend!( Proposed Sample Locations

Site BoundaryESA Sections (Source: Plexus)Decision Unit Boundary

1-UD0101 Decision Unit IDProposed Sampling Grid

2

Table 1

Summary of ISM Soil Analytical Results

Section 1010


Arden Hills, Minnesota

1010DU-1-Z1 TCAAP-45 TCAAP-47 1010DU-1-Z2 TCAAP-46 TCAAP-48

10302991001 10302991003 10303066001 10302991002 10302991004 10303066002

4/16/2015 4/16/2015 4/17/2015 4/16/2015 4/16/2015 4/17/2015

Northing -- -- -- -- -- --

Easting -- -- -- -- -- --

Parameter Method

Tier 1

RES SRV

Screening

SLVs Units

Duplicate of

1010DU-1-Z1

Triplicate of

1010DU-1-Z1

Duplicate of

1010DU-1-Z2

Triplicate of

1010DU-1-Z2

Total Metals

Antimony 6010B 12 - mg/kg <0.44 <0.45 <0.38 <0.48 <0.40 <0.43

Arsenic 6010B 9 - mg/kg 1.7 1.6 1.9 2.0 2.3 2.4

Barium 6010B 1100 - mg/kg 28.4 27.0 33.3 36.9 36.5 41.0

Cadmium 6010B 25 - mg/kg <0.070 0.072 0.085 <0.077 0.070 0.081

Chromium 6010B 87a

- mg/kg 7.9 6.6 9.3 7.2 6.5 7.9

Copper 6020 100 - mg/kg 9.6 8.2 10.1 4.9 4.3 5.3

Lead 6010B 300 - mg/kg 6.9 6.7 7.5 3.0 3.0 16.7

Manganese 6010B 3600 - mg/kg 185 180 208 182 166 212

Mercury 7471 0.5 - mg/kg <0.019 <0.018 <0.018 <0.019 <0.018 <0.018

Thallium 6010B 3 - mg/kg 0.087 <0.090 <0.076 <0.097 <0.079 <0.086

Polycyclic Aromatic Hydrocarbons

Acenaphthene 8270 1.86E+06 5.00E+04 µg/kg 36.3 <50.2 <49.8 <10.0 <10.0 13.3

Acenaphthylene 8270 - - µg/kg 173 299 413 <10.0 <10.0 <10.0

Anthracene 8270 1.00E+07 9.42E+05 µg/kg 158 174 513 <10.0 <10.0 28.5

Benzo(a)anthracene 8270 - - µg/kg 761 734 3290 13.6 <10.0 44.3

Benzo(a)pyrene 8270 2.00E+03 1.02E+04 µg/kg 944 1110 3400 13.1 12.5 39.8

Benzo(b)fluoranthene 8270 - - µg/kg 1080 1370 4110 16.1 15.2 49.9

Benzo(g,h,i)perylene 8270 - - µg/kg 914 1040 1560 <10.0 <10.0 22.1

Benzo(k)fluoranthene 8270 - - µg/kg 479 437 1070 <10.0 <10.0 24.0

Chrysene 8270 - - µg/kg 817 864 3230 14.5 10.8 46.2

Dibenz(a,h)anthracene 8270 - - µg/kg 173 201 489 <10.0 <10.0 <10.0

Fluoranthene 8270 1.29E+06 2.95E+05 µg/kg 1270 1580 4670 28.0 18.5 84.6

Fluorene 8270 1.20E+06 4.70E+04 µg/kg 55.3 50.7 70.1 <10.0 <10.0 17.6

Indeno(1,2,3-cd)pyrene 8270 - - µg/kg 689 786 1360 <10.0 <10.0 17.9

Naphthalene 8270 2.40E+04 7.50E+03 µg/kg 17.9 <50.2 <49.8 <10.0 <10.0 <10.0

Phenanthrene 8270 - - µg/kg 589 486 761 23.1 11.1 80.4

Pyrene 8270 1.06E+06 2.72E+05 µg/kg 1320 1640 4530 23.3 16.2 72.5

B(a)P Equivalent -- 2000 10200 µg/kg 1349.95 1563.90 4689.14 16.22 14.13 53.87

Notes:

ft bgs = Feet Below Ground Surface

a = Risk Screening Value for Chromium IV

- = Negligable or Nonexistent Value

mg/kg = Milligrams per Kilogram (parts per million)

µg/kg = Micrograms per Kilogram (parts per billion)

1.7 = Analyte detected above the lab reporting limit but less than regulatory limit

3400.00 = Analyte detected above the regulatory screening limits

Tier 1 RES SRV = MPCA May 2013 Tier 1 Residential Soil Reference Value

Screening SLVs = MPCA May 2013 Screening Soil Leaching Values. Screening SLVs are not used to evaluate Total Metal parameters

B(a)P Equivalent = Benzo(a)anthracene equivalent value. Assume non-detected values equal to the reporting limit.

Sample ID

Laboratory Sample ID

Sample Collection Date

Table 2

Summary of ISM 95% UCL Results

Section 1010



1010DU-1-Z1 1010DU-1-Z2

10302991001 10302991002

4/16/2015 4/16/2015

Depth Range (ft bgs) 0-2 2-4

Parameter Method

Tier 1

RES SRV

Screening

SLVs Units

Total Metals

Antimony 6020 12 - mg/kg - -

Arsenic 6020 9 - mg/kg 1.99 2.58

Barium 6020 1,100 - mg/kg 35.14 42.33

Cadmium 6020 25 - mg/kg 0.09 0.09

Chromium 6020 87a

- mg/kg 10.21 8.38

Copper 6020 100 - mg/kg 10.96 5.68

Lead 6020 300 - mg/kg 7.74 20.90

Manganese 6020 3600 - mg/kg 216.18 226.04

Mercury 7471 0.5 - mg/kg - -

Thalium 6020 3 - mg/kg - -


Acenaphthene 8270 1.2E+06 8.1E+04 µg/kg - -

Acenaphthylene 8270 - - µg/kg 497.39 -

Anthracene 8270 7.9E+06 1.3E+06 µg/kg 619.68 -

Benzo(a)anthracene 8270 2.0E+03 1.4E+04 µg/kg 4069.79 65.55

Benzo(a)pyrene 8270 - - µg/kg 4131.94 48.08

Benzo(b)fluoranthene 8270 - - µg/kg 5005.34 60.41

Benzo(g,h,i)perylene 8270 - - µg/kg 1748.64 -

Benzo(k)fluoranthene 8270 - - µg/kg 1258.73 -

Chrysene 8270 - - µg/kg 3963.11 56.64

Dibenz(a,h)anthracene 8270 - - µg/kg 582.56 -

Fluoranthene 8270 1.1E+06 6.7E+05 µg/kg 5675.91 103.95

Fluorene 8270 8.5E+05 1.1E+05 µg/kg 75.79 -

Indeno(1,2,3-cd)pyrene 8270 - - µg/kg 1556.39 -

Naphthalene 8270 1.0E+04 4.5E+03 µg/kg - -

Phenanthrene 8270 - - µg/kg 846.22 100.64

Pyrene 8270 4.0E+03 4.4E+05 µg/kg 5477.55 89.02

B(a)P Equivalent -- 2000 10200 µg/kg 5685.50 65.78

Notes:

ft bgs = Feet Below Ground Surface `

a = Risk Screening Value for Chromium IV

- = Negligable or Nonexistent Value

mg/kg = Milligrams per Kilogram (parts per million)

µg/kg = Micrograms per Kilogram (parts per billion)

1.99 = Analyte detected above the lab reporting limit but less than regulatory limit

4069.79 = Analyte detected above the regulatory screening limits

Tier 1 RES SRV = MPCA May 2013 Tier 1 Residential Soil Reference Value

Screening SLVs = MPCA May 2013 Screening Soil Leaching Values.

Screening SLVs are not used to evaluate Total Metal parameters

B(a)P Equivalent = Benzo(a)anthracene equivalent value. Assume non-detected values equal to zero

Sample ID



95% Upper Confidence Level

N:\Technical\0979 Bolander\03 Field Investigation\TCAAP Soil Sampling\Data Summary Tables\1010\1010_Tables.xlsx 1 of 1

Table 3

Summary of Discrete PAH

Sample Results

Section 1010



1010DU-1-C1 1010DU-1-C2 1010DU-1-C3 1010DU-1-C4 1010DU-1-C5 1010DU-1-C6 1010DU-1-C7 1010DU-1-C8 1010DU-1-C9 1010DU-1-C10 1010DU-1-C11

10306157001 10306157002 10306157003 10306157004 10306157005 10306157006 10306157007 10306157008 10306157009 10306157010 10306157011

5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015

Northing 552684.9604 552882.1637 552926.2988 552839.1028 552753.4058 552664.7895 552754.0321 552839.7291 552927.0541 552927.8093 552840.3554

Easting 211476.6167 211556.1625 211489.0566 211488.4402 211487.8135 211398.5611 211402.1165 211402.7432 211403.3606 211317.6649 211317.0461

Parameter Method

Tier 1

RES SRV

Screening

SLVs


Acenaphthene 8270 1.86E+06 5.00E+04 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 <11.3 <11.9

Acenaphthylene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 36.2 <11.9

Anthracene 8270 1.00E+07 9.42E+05 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 22.4 <11.9

Benzo(a)anthracene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 23.8 <11.9

Benzo(a)pyrene 8270 2.00E+03 1.02E+04 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 12.2 <11.7 48 <11.9

Benzo(b)fluoranthene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 18.2 <11.7 84.7 <11.9

Benzo(g,h,i)perylene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 58.6 <11.9

Benzo(k)fluoranthene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 25.6 <11.9

Chrysene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 13.1 <11.7 41.8 <11.9

Dibenz(a,h)anthracene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 11.7 <11.9

Fluoranthene 8270 1.29E+06 2.95E+05 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 25.5 <11.7 36.5 <11.9

Fluorene 8270 1.20E+06 4.70E+04 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 <11.3 <11.9

Indeno(1,2,3-cd)pyrene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 43.1 <11.9

Naphthalene 8270 2.40E+04 7.50E+03 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 <11.0 <11.7 <11.3 <11.9

Phenanthrene 8270 - - µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 12.5 <11.7 <11.3 <11.9

Pyrene 8270 1.06E+06 2.72E+05 µg/kg <11.1 <11.7 <13.9 <11.4 <12.1 <11.5 <11.3 22.7 <11.7 41.6 <11.9

B(a)P Equivalent -- 2000 10200 µg/kg 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14.15 0.00 72.69 0.00

Notes:

µg/kg = micrograms per kilogram (parts per billion)

<0.021 = Analyte not detected above lab reporting limit

95.5 = Analyte detected above the lab reporting limit but less

than regulatory limit

Tier 1 Res SRV = Minnesota Pollution Control Agency Tier 1 Soil Reference Value


Sample ID



N:\Technical\0979 Bolander\03 Field Investigation\TCAAP Soil Sampling\Data Summary Tables\1010\1010_Tables.xlsx

Table 3


Sample Results

Section 1010



Northing

Easting

Parameter Method

Tier 1

RES SRV

Screening

SLVs


Acenaphthene 8270 1.86E+06 5.00E+04 µg/kg

Acenaphthylene 8270 - - µg/kg

Anthracene 8270 1.00E+07 9.42E+05 µg/kg

Benzo(a)anthracene 8270 - - µg/kg

Benzo(a)pyrene 8270 2.00E+03 1.02E+04 µg/kg

Benzo(b)fluoranthene 8270 - - µg/kg

Benzo(g,h,i)perylene 8270 - - µg/kg

Benzo(k)fluoranthene 8270 - - µg/kg

Chrysene 8270 - - µg/kg

Dibenz(a,h)anthracene 8270 - - µg/kg

Fluoranthene 8270 1.29E+06 2.95E+05 µg/kg

Fluorene 8270 1.20E+06 4.70E+04 µg/kg

Indeno(1,2,3-cd)pyrene 8270 - - µg/kg

Naphthalene 8270 2.40E+04 7.50E+03 µg/kg

Phenanthrene 8270 - - µg/kg

Pyrene 8270 1.06E+06 2.72E+05 µg/kg

B(a)P Equivalent -- 2000 10200 µg/kg

Notes:







Sample ID



1010DU-1-C12 1010DU-1-C13 1010DU-1-C14 1010DU-1-C15 1010DU-1-C16 1010DU-1-C17 1010DU-1-C18 1010DU-1-C19 1010DU-1-C20 1010DU-1-C21 1010DU-1-C22

10306157012 10306157013 10306157014 10306157015 10306157016 10306157017 10306157018 10306157019 10306157020 10306157021 10306157022

5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015

552754.6587 552668.9614 552603.2699 552585.8841 552669.588 552755.2851 552840.9821 552928.5649 552929.3201 552841.6084 552755.9117

211316.4195 211315.7932 211309.1443 211226.1743 211230.0962 211230.7225 211231.3491 211231.9689 211146.2725 211145.6518 211145.0255

<11.2 <11.7 <11.1 17.3 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

<11.2 <11.7 <11.1 <11.2 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

<11.2 22.3 21.8 38.9 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

25.0 36.2 64.1 65.5 17.0 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

24.3 33.6 63.9 55.5 18.4 67.1 <11.5 <11.6 <11.2 <11.6 <11.9

27.7 41.9 80.1 66.2 22.3 90.1 12.4 <11.6 <11.2 <11.6 <11.9

13.7 19.6 34.5 29.9 <11.6 89.7 <11.5 <11.6 <11.2 <11.6 <11.9

12.9 14.8 34.9 24.6 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

24.5 37.5 67.9 62.9 17.4 66.3 <11.5 <11.6 <11.2 <11.6 <11.9

<11.2 <11.7 12.2 <11.2 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

43.6 71.8 102 117 29.3 85.2 <11.5 <11.6 <11.2 <11.6 <11.9

<11.2 <11.7 <11.1 16.5 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

12.2 17.3 30.3 26.6 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

<11.2 <11.7 <11.1 <11.2 <11.6 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

26.4 58.4 56.3 101 12.0 <54.9 <11.5 <11.6 <11.2 <11.6 <11.9

40.5 64.6 104 115 28.0 76.9 14.1 <11.6 <11.2 <11.6 <11.9

32.3 45.00 92.35 74.42 22.5 76.77 1.24 0.00 0.00 0.00 0.00


Table 3


Sample Results

Section 1010



Northing

Easting

Parameter Method

Tier 1

RES SRV

Screening

SLVs


Acenaphthene 8270 1.86E+06 5.00E+04 µg/kg

Acenaphthylene 8270 - - µg/kg

Anthracene 8270 1.00E+07 9.42E+05 µg/kg

Benzo(a)anthracene 8270 - - µg/kg

Benzo(a)pyrene 8270 2.00E+03 1.02E+04 µg/kg

Benzo(b)fluoranthene 8270 - - µg/kg

Benzo(g,h,i)perylene 8270 - - µg/kg

Benzo(k)fluoranthene 8270 - - µg/kg

Chrysene 8270 - - µg/kg

Dibenz(a,h)anthracene 8270 - - µg/kg

Fluoranthene 8270 1.29E+06 2.95E+05 µg/kg

Fluorene 8270 1.20E+06 4.70E+04 µg/kg

Indeno(1,2,3-cd)pyrene 8270 - - µg/kg

Naphthalene 8270 2.40E+04 7.50E+03 µg/kg

Phenanthrene 8270 - - µg/kg

Pyrene 8270 1.06E+06 2.72E+05 µg/kg

B(a)P Equivalent -- 2000 10200 µg/kg

Notes:







Sample ID



1010DU-1-C23 1010DU-1-C24 1010DU-1-C25 1010DU-1-C26 1010DU-1-C27 1010DU-1-C28 1010DU-1-C29 1010DU-1-C30

10306157023 10306157024 10306157025 10306157026 10306157027 10306157020 10306157029 10306157030

5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015 5/13/2015

552670.2147 552584.5174 552512.1044 552585.1286 552670.8249 552756.5209 552842.217 552930.0547

211144.3989 211143.7725 211078.3366 211057.4482 211058.1953 211058.9423 211059.689 211060.4341

<11.3 84.5 91.2 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 <11.4 12.1 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 195 74.7 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 427 116 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 380 123 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 448 149 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 184 78.7 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 192 60.5 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 443 129 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 60.8 20.4 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 693 242 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 92.1 69 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 161 68.6 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 20.4 <11.6 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 579 277 <11.9 <11.2 <11.8 <11.7 <11.0

<11.3 619 221 <11.9 <11.2 <11.8 <11.7 <11.0

0.00 541.28 175.12 0.00 0.00 0.00 0.00 0.00


technical memo - rice creek commons

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