Tables - University of Minnesotapub/@ssrd/...Test trenches to extend 2 feet into unimpacted geologic...

Tables

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TABLE 1SUMMARY OF EXISTING WELLS

Phase II Investigation Work Plan, SOCs 1-3 and 6-8UMore Mining Area

Dakota County, Minnesota

MN Unique Listed Well Ground Well AquiferWell ID Township Range Sec subSec Use Surface Elev DepthNumber (north) (west) (ft MSL) (ft bgs)185278 114 19 4 BCDCBC Irrigation 951 310 PDC207605 114 19 3 BBAAAD Domestic 943 206 PDC207606 114 19 4 BBACBB Sealed 954 429207607 114 19 4 AAACBC Domestic 945 170 PDC207608 114 19 4 DACADD Public 948 415 Jordan207615 115 19 33 ADBACC Domestic 955 432207616 115 19 33 ABBBBC Irrigation 954 221 SPPDC207617 115 19 33 CDBBAA Domestic 950 434208402 115 19 33 DDDCC Domestic 950 166 PDC208405 115 19 34 CCCCD Domestic 953 236 PDC543862 114 19 4 Sealed543863 114 19 4 Sealed543864 114 19 4 Sealed575906 114 19 4 ADA Monitor635497 114 19 4 DAA Sealed 50635498 114 19 4 DAA Sealed 50635499 114 19 4 DAA Sealed 59769429 114 19 4 Monitor 939 77 SP769482 115 19 33 Monitor 950 147 Q769483 114 19 4 Monitor 947 127 Q769488 114 19 4 Monitor 948 70 Q769489 115 19 33 Monitor 950 146 Q769490 114 19 3 Monitor 944 72 Q769493 115 19 33 Monitor 950 77 Q769796 115 19 33 Monitor 948 84 Q

Notes: Blank indicates information not reported Domestic - indicates well is used for domestic water supply Sealed - indicates well has been sealed/decommissioned Irrigation - well used for crop irrigation water supply Monitor - well used for monitoring purposes Q - Quaternary SP - St. Peter Formation PDC - Prairie du Chien Group Jordan - Jordan Formation

PLLS Location

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TABLE 2SITES OF CONCERN

Phase II Investigation Work Plan, SOCs 1-3 and 6-8UMore Mining Area


Site of Concern Name Map Location Description Previously Identified Sites Potentially Affected Media

Anticipated Constituents of Concern

SOC 1 Former Railroad "Y" A2

Heavy gauge railroad junction that was a major gateway for delivery of construction materials and

raw material supplies for manufacture of smokeless gunpowder. Outbound shipments

likely included manufactured gunpowder, oleum, and nitric acid. During GOW decommission,

salvaged materials would have been shipped out along the rails.

Barr Site ID# 6001. Was visited by Army but not included in scope of Focused Site Investigation. No

previous investigations.

Soil and Groundwater

SVOCs from railroad ties including PAHs. Possible

spills from railcars including SVOCs (DNT, DBP, DPA),

NC, and VOCs. Arsenic-based herbicides may have been

used along tracks.

SOC 2 Forestry Research C3

Wooded area transected by the railroad south of the "Y". GOW era loading platform and

storehouses located in cluster with storage buildings south of the GOW lumber yard. The area appears to have disturbed ground on the

1945 air photo and scattered concrete and brick fragments were observed at the surface during

9/2008 field visit. RR tie visible in woods.

Barr Site ID# 6004 and ID# 6005, Dakota County Site ID# 5262 and ID# 5263. Storage buildings 126-

T, 127-T1, T2, and S-7-1. No previous investigations.

Soil ACM, SVOCs, metals

SOC 3 Ag Engineering/Former "K" Street Dump D3

Former Kane farmstead. West and central side of this area is the Ag Engineering Complex.

University staff indicate that the well in building 1010 is believed to be impacted by pesticides and

is not potable. East central includes a former animal waste lagoon and associated outlet

structures and east side is former dump. Dump is currently wooded with some rubble visible, was borrow area for GOW, appears to have been

filled with GOW demolition debris.

Barr Site ID# 6014, Dakota County Site ID# 5225, ID# 5859

and ID# 5012. Possibly associated with LEAK 7504, no known previous investigations.

Soil and GroundwaterACM, pesticides, herbicides,

metals, SVOCs (including DNT, DBP, DPA)

SOC 6Southern Complex

Storage Buildings and Wash Pads

E2Pesticide release sites closed 2002. University

staff suspect some impacts may remain in groundwater.

Barr Site ID# 6006, Dakota County Site ID# 5874 Soil and Groundwater Pesticides, herbicides

SOC 7 Former Dairy Complex Suspected Dump Area D1 Suspect dump area. Some evidence of concrete

and plastic in surface soils. Dakota County Site ID# 5152 (in

2006 Peer Phase I) Soil ACM, metals, SVOCs

SOC 8Undetermined Use Area West of Patrol

Road (South of CR 46)D2 Suspect hay bale area. Possible debris/material

stockpile area in 1945 aerial photo. NA Soil NA

AbbreviationsACM - Asbestos-containing materialDNT - 2,4-dinitrotoluene and 2,6-dinitrotoluene, a type of SVOC used as a burn rate modifier for smokeless gunpowder (NC)DPA - Diphenylamine, an SVOC used as a stabilizer added to smokeless gunpowderDBP - Di-n-butyl Phthalate, an SVOC used as a plasticizer for smokeless gunpowderGOW - Gopher Ordinance WorksNC - Nitrocellulose, smokeless gunpowder or gun cotton. A single base explosive and propellantPAH - Polycyclic Aromatic Hydrocarbons, a type of SVOCSOC - Site of ConcernSVOCs - Semivolatile Organic CompoundsVOCs - Volatile Organic CompoundsFSI - Draft-Final Focused Site Inspection Report (Bay West, 2008)

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TABLE 3SOIL AND GROUNDWATER SAMPLING SUMMARYUMore Mining Area, Phase II Investigation Work Plan


Sampling Target CommentLocation Depth1 Sample Interval2 Depth8

ID (feet bgs) (feet bgs) VOCs4 SVOCs PPL Metals Nitrocellulose 5 List 1&2 - Pest6 OC-Pest7 Asbestos Arsenic (feet bgs) VOCs SVOCs PPL Metals Nitrocellulose 5 List 1&2 - Pest6 OC-Pest7 Nitrogen9 PerchlorateSOC#1 Former Rilraod "Y" (#6001)

GP1 80 0-4 1 1 1 1 1 75 1 1 1 0 1 1 Continuous soil sample to groundwaterGP2 20 0-4 1 1 1 1 1GP3 20 0-4 1 1 1 1 1 75 1 1 1 1 1 1 1 Soil sample to 20'; blind advance to WT

SS-1A 0.5 0-0.5 1 1SS-1B 0.5 0-0.5 1 1SS-1C 0.5 0-0.5 1 1SS-2A 0.5 0-0.5 1 1SS-2B 0.5 0-0.5 1 1SS-2C 0.5 0-0.5 1 1SS-3A 0.5 0-0.5 1 1SS-3B 0.5 0-0.5 1 1SS-3C 0.5 0-0.5 1 1

SOC#2 Forestry Research/Former GOW StorageTT1 12 0-4 1 1 1 1 *TT2 12 0-4 1 1 1 1 *TT3 12 0-4 1 1 1 1 *TT4 12 0-4 1 1 1 1 *TT5 12 0-4 1 1 1 1 *TT6 12 *TT7 12 *TT8 12 *TT9 12 *

TT10 12 *TT11 12 *TT12 12 *TT13 12 *TT14 12 *TT15 12 *

SOC#3 Former "K" Street Dump Area and Age Engineering ComplexTT1 12 0-4 1 1 1 1 1 1 *TT2 12 0-4 1 1 1 1 1 1 *TT3 12 0-4 1 1 1 1 1 1 *TT4 12 0-4 1 1 1 1 1 1 *TT5 12 0-4 1 1 1 1 1 1 *TT6 12 0-4 1 1 1 1 1 1 *TT7 12 0-4 1 1 1 1 1 1 *TT8 12 0-4 1 1 1 1 1 1 *TT9 12 *

TT10 12 *TT11 12 *TT12 12 *TT13 12 *TT14 12 *TT15 12 *TT16 12 *GP1 20 0-4 1 0 1 1 1 1GP2 55 0 0 0 0 0 50 1 1 1 1 1 1 Continuous soil sample to groundwaterGP3 55 1 50 1 1 1 1 1 1 1 1 Continuous soil sample to groundwaterGP4 20 50 1 1 1 1 1 1 Soil sample to 20'; blind advance to WT

WSW-207605 NA 50 1 1 1 1 1 1SOC#6 Southern Complex Storage Buidlings and Wash Pads

GP1 20 0 0 55 1 1 1 1 Soil sample to 20'; blind advance to WTGP2 20 0 0 55 1 1 1 Soil sample to 20'; blind advance to WTGP3 20 0 0 55 1 1 1 Soil sample to 20'; blind advance to WTGP4 60 0 0 55 1 1 1 Continuous soil sample to groundwaterGP5 20 0-4 1 1GP6 60 0-4 1 1 55 1 1 1 Continuous soil sample to groundwaterGP7 20 0-4 1 1GP8 20 0-4 1 1

SOC#7 Dairy Complex Suspected Dump Area (#5152)TT1 12 0-4 0 0 0 *TT2 12 0-4 0 0 0 *TT3 12 0-4 0 0 0 *TT4 12 0-4 0 0 0 *TT5 12 0-4 1 1 1 *TT6 12 0-4 0 0 0 *TT7 12 0-4 1 1 1 *

SOC#8 Undetermined Use Area West of Patrol Road (South of CR 46)TT1 4 *

GW Quality

Potential Ag. Chemical impacts

Observed Debris

Fuel AST

& RationaleParameters (Number of samples)

Site ofConcern Parameters (Number of samples)

Soil Sampling Plan3 Groundwater Sampling Plan3

Potential release to low

areas

Surface samples will be collected in transects across former railroad bed.

Additional samples may be collected for SOC #2 parameters if evidence of soil impacts are observed

during test trench excavation.

Test trenches used to determine the extent of buried debris as needed

Potential surface impacts

along RR tracks

Former building/storag

e areas and observed

debris

SOC8 pile

Buried debris

Former lagoons

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TABLE 3SOIL AND GROUNDWATER SAMPLING SUMMARYUMore Mining Area, Phase II Investigation Work Plan


Sampling Target CommentLocation Depth1 Sample Interval2 Depth8

ID (feet bgs) (feet bgs) VOCs4 SVOCs PPL Metals Nitrocellulose 5 List 1&2 - Pest6 OC-Pest7 Asbestos Arsenic (feet bgs) VOCs SVOCs PPL Metals Nitrocellulose 5 List 1&2 - Pest6 OC-Pest7 Nitrogen9 Perchlorate& RationaleParameters (Number of samples)

Site ofConcern Parameters (Number of samples)

Soil Sampling Plan3 Groundwater Sampling Plan3

TT2 4 *TT3 4 *TT4 4 *TT5 4 *TT6 4 *TT7 4 *

Background SamplingSS1 0.5 0-0.5 0 1 1 1 1SS2 0.5 0-0.5 0 1 1 1 1SS3 0.5 0-0.5 0 1 1 1 1SS4 0.5 0-0.5 0 1 1 1 1SS5 0.5 0-0.5 0 1 1 1 1

MW-B1-001 NA 65 1 1 1 1 1 1 1MW-E2-009 NA 60 1 1 1 1 1 1 1MW-E2-209 NA 60 1 1 1 1 1 1 1

Estimated Minimum # of Samples: 19 32 24 16 21 18 0 11 9 9 9 2 14 12 14 6Notes:

1- Continuous soil sampling conducted in borings to target depth for soil description and screening purposes. Test trenches to extend 2 feet into unimpacted geologic deposit below modern soil or filled material, if possible.2- Default soil sample collection depths for chemical analysis. Metals sample default will be from 2 to 6 inches below ground surface. If impacted soils are encountered an additonal metals sample will be collected.

If contamination/debris is encountered, additional samples will be collected (if possible) as indicated in the table below:Haz. Material ReleaseBuried Debris

3 - Individual compounds and analytical methods for each parameter list are included in the Sampling and Analysis Plan (SAP)4 - VOC samples will be collected where soil exhibits evidence that VOCs are present. For example, elevated headspace, staining and strong odor.5 - Formerly included as "Explosives." SVOC analyte list includes the following compounds considered as "Explosives": 2,4-dinitrotoluene, 2,6-dinitrotoluene and dipheylamine.6 - List1&2-Pest - includes Minnesota Department of Agriculture Pesticides List 1 (neutral) and List 2 (acid) pesticides7 - OC-Pest - includes organochlorine pesticides listed in EPA method # 8081A8 - Approximate depth to groundwater. Actual depth to be determined in the field.9 - Nitrogen analysis include Nitrate+Nitrite (As N) and Total Kjeldahl Nitrogen (TKN)VOCs - Volatile organic compoundsSVOCs - Semi-volatile organic compoundsPPL Metals - Priority Pollutant List metalsWT - Water tableBold and italics font indicates addition/revision from original WP scope* indicates that a sample will be collected if potential Asbestos Containing Material is observed during test trenching

Impacted soil,unimpacted soilNative soil below debris

Stockpiles (1945)

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Figures

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Figure 1

SITE LOCATION

Phase II Investigation Work PlanSites of Concern 1-3, 6-8

UMore Mining AreaDakota County, MN

Source: MnDOT, MN DNR, Dakota County, Barr, SEH, HKGi.USGS topographic map background downloaded from the U.S. Department of Agriculture, Natural Resources Conservation Service.

UMore Mining Area (UMA)

UMore Park Boundary

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UMORE PARKUMA

Approximate Extent ofEconomic Gravel Deposit Area

Empire Twp. Sand & Gravel Mining and Accessory Area

Rosemount

Dakota Co. Technical College


UMore Park Boundary

Gravel Deposit Areas (ProSource, 2008)

Dakota Co. Technical College

Empire Twp. Sand & Gravel Mining

and Accessory Area

2005 Generalized Land Use (Met. Council)Agricultural/Farmstead

Commercial/Retail/Residential

Extractive

Parks, Recreational, or Preserve

Industrial and Utility

Institutional

Transportation

Undeveloped

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UMA PROJECT AREA AND CURRENT LAND USE



Source: Metropolitan Council, Dakota County, Barr, SEH, HKGi.

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FORMER GOW STRUCTURESAND SEWERS



Waste Lines (from Dakota Co.)Laminex Woodbox SewerLime SlurryProcess SewerSanitary SewerSeptic LineWater TreatmentUMore Mining Area (UMA)UMore Park BoundaryFormer GOW Building (from Dakota Co.)

Source: Dakota County, SEH, Barr, HKGi.

Background: 2008 Aerials Express imagery for the Twin Cities.

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EXISTING CONDITIONS AND TOPOGRAPHY



Source: Metropolitan Council, MnDOT, MN DNR, Dakota County, USGS, Barr, SEH


Ground Surface Contour

Depressional Ground Surface Contour

Background: 2008 Aerials Express.

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411A

411A

411B

411B

411B

858C

611D857A

411B

611D

411B411B

411C

250

611D250

411B

250

39D

415B

250

411B

415B

865B

411B

411B

411B

250

411B

411A

250

415B411A

857A

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250

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250

39B

41B

39B

611D

250

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250

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411B

411B

39D

857A

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611C

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UMA SURFACE SOILS



Source: MnDOT, MN DNR, Dakota County, USGS, Barr, SEH.Soil data is Soil Survey Geographic (SSURGO) database for Dakota County from the U.S. Department of Agriculture, Natural ResourcesConservation Service.


Soil Data (SSURGO)


Map Unit Symbol Map Unit Description

250 Kennebec silt loam

301B Lindstrom silt loam, 1 to 4 % slopes

39B Wadena loam, 2 to 6 % slopes

39D Wadena loam, 12 to 18 % slopes

411A Waukegan silt loam, 0 to 1 % slopes

411B Waukegan silt loam, 1 to 6 % slopes

411C Waukegan silt loam, 6 to 12 % slopes

415B Kanaranzi loam, 2 to 6 % slopes

41B Estherville sandy loam, 2 to 6 % slopes

611C Hawick coarse sandy loam, 6 to 12 % slopes

611D Hawick coarse sandy loam, 12 to 18 % slopes

857A Urban land-Waukegan complex, 0 to 1 % slopes

858C Urban land-Chetek complex, 1 to 15 % slopes

865B Urban land-Hubbard complex, 0 to 6 % slopes

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A3000

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LL2250

LL1850

LL1250

LL0750

LL0550

LL0350

KK3800

KK3600

KK3400

KK3200

KK3000

KK2800

KK2600

KK2400

KK2200

KK2000

KK1800

KK1600

KK1400

KK1200

KK1000

KK0900

KK0800

KK0600

KK0400

KK0300

KK0200

KK0000

JJ1650

JJ0850

JJ0650

JJ0450

JJ0050

II3300

II3100

II2900

II2700

II2500

II2400

II2300

II2100

II1900

II1700

II1500

II1300

II1200

II1100

II1000

II0900

II0700

II0500

II0400

II0300

II0100

HH2650

HH1350

HH1100

HH0850

HH0650

GG3400

GG3200

GG3000

GG2800

GG2600

GG2400

GG2200

GG1700

GG1600

GG1400

GG1200

GG1000

GG0800

GG0700

GG0600

GG0500

GG0400

GG0200

GG0000

FF2750

FF2450

FF1650

FF1450

FF1250

FF1050

FF0850

FF0550

FF0150

EE3300

EE3100

EE2900

EE2700

EE2600

EE2500

EE1500

EE1400

EE1300

EE1100

EE0900

EE0700

EE0500

EE0300

EE0100

DD1250

DD1050

DD0850

CC3400

CC3000

CC2800

CC2600

CC2400

CC1400

CC1200

CC1000

CC0800

CC0600

CC0400

CC0200

CC0000

BB2450

BB1350

BB1150

AA3300

AA3100

AA2900

AA2700

AA2500

AA1300

AA1100

AA0900

AA0700

AA0500

AA0300

AA0100

CCC3100

CCC2900

CCC2700

CCC2600

CCC2500

CCC2300

CCC2200

CCC2100

CCC1900

CCC1700

CCC1501

CCC1500

CCC1300

BBB3050

AAA3200

AAA3000

AAA2800

AAA2600

AAA2400

AAA2200

AAA2000

AAA1800

AAA1600

AAA1400

AAA1200

A’

A

Q-698459

PB-E1

MW-B1-001

PDC-E1-185278

Barr

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ter:

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e: 4

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2009

4:1

1:47

PM

Fi

le:

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9_V4

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mxd

Use

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1,500 0 1,500Feet

Figure 6

GRAVEL ASSESSMENT BORINGS AND

CROSS SECTION LOCATION



Cross SectionUMore Park BoundaryUMore Mining Area (UMA)Existing WellMonitoring WellPilot Boring

Boring LocationsPhase I, Auger (ProSource, 2008)Phase II, Auger (ProSource, 2008)Phase II, Coring (ProSource, 2008)

Source: ProSource, SEH, Barr, HKGi.


rjmMMQPPT

1000

950

900

850

800

750

700

Figure 7

CROSS SECTION A-A'Phase II Investigation Work Plan

Sites of Concern 1-3, 6-8UMore Mining Area

Dakota County, Minnnesota

0 1000

Approximate Horizontal Scale in Feet20X Vertical Exaggeration

P:\M

pls

\23

MN

\19

\23

19

B0

5\W

ork

File

s\G

W A

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vest

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#2

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05

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-09

Ele

vatio

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t (M

SL

)

A'SOUTH

ANORTH

ST. PETERSANDSTONE

Cross Section Location Map

Approximate Water Table Elevation(Dashed where inferred)

Approximate Groundwater Elevation(04-03-09)

Soil Boring

Well Screen

Open Hole Interval(for pre-existing wells)

Topsoil/Loess

Outwash

Diamicton

Fluvial(low energy)/Lacustrine

St. Peter Sandstone

Prairie du Chien

Surface Deposit - Organic TopsoilAt Depth - Silt

Poorly Graded Sand with Gravel(content ranging from 0 to 30%)

Lean Clay Matrix with Sand and Gravel(content ranging from 10% to 40%)

Sandy Silt, Silt or Interbedded Clays

Fine Grained Sandstone (Bedrock)

Dolomite (Bedrock)

OL, ML

SP, SW, GP

CL, SC

ML, SM, SM/CL

NA

NA

Generalized Field DescriptionsPredominant USCS

DescriptionsCommon NameLegend

Open to El. 640'

69

84

59

PB

-E1

C-0

30

0

18

52

78

C-0

50

0

B-0

75

0

B-0

95

0

B-1

15

0D-1

35

0

E-1

50

0

E-1

70

0

E-1

90

0

E-2

10

0

E-2

30

0

F-2

40

0

F-2

65

0

F-2

85

0

F-3

35

0

F-3

55

0

MW

-B1

-00

1

F-3

75

0

OUTWASHOUTWASH

OUTWASH

ST. PETERSANDSTONE

DIAMICTON

DIAMICTON

TOPSOIL/LOESS

OUTWASH

PRAIRIE DU CHIEN LIMESTONEPRAIRIE DU CHIEN LIMESTONE

TOPSOIL/LOESS

A'

A

FLUVIAL/LACUSTRINE

FLUVIAL/LACUSTRINE

FLUVIAL/LACUSTRINE

OUTWASH

FLUVIAL/LACUSTRINE

rjmMMQPPU

( dh /dz = 0)

( dh/dz = -0.0007 )

W8813.54

W113801.25

698462907.7

698459894.62

698456881.53

539515862.24 *

MW-E4-010882.6

MW-A3-003871.2

MW-C4-311874.72

MW-E2-009886.46

MW-D5-308871.77

MW-D3-007884.49

MW-A6-006852.21

MW-E2-305887.01

MW-C7-004858.93

MW-C2-002885.62

MW-B1-001884.11

W1815.93

T00020839.28

875865

855

885

845

835

895

825

815

905

805

2,500 0 2,500Feet

Figure 8

GROUNDWATER FLOW MAP



Monitoring Wells

Groundwater Elevation Contours

UMore Park Boundary


Site Location Grid

Approximate Extent of Massive Glacial Diamicton at Water TableEconomic Gravel Deposit Below the Water Table (Approximate)

Source: Metropolitan Council, MnDOT, Dakota County, Barr, ProSource, SEH, HKGi.


Water levels used for this map are from wells completedin the uppermost saturated unit and within 25 feet of thewater table. Most of the wells used are completed in Quaternary deposits or the St Peter formation, except W1, which is completed in the Prairie du Chien formation,and T00020, which is completed across Quaternarydeposits and the Prairie du Chien formation.

* The water level at well 539515 was measured on 3-4-2009 All others were measured on 3-3-2009.

dh dz

Vertical gradient in Quaternary deposit; negative indicates downward gradient.=

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cls

rjmMMQPPV

543862543864 635497

635499

575906

635498

H48777

208405208402

207617

207616

207615

207608

207606 207605

185278

543863

207607

MW-E2-209

MW-E2-305

MW-C2-202

MW-C2-002

PW-C2-202

MW-D3-007

MW-B1-001

MW-E2-009

3

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2009

4:1

4:17

PM

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9_R

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Exi

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d_W

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tions

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mxd

Use

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2,000 0 2,000Feet

Figure 9

EXISTING AND SEALED WELLS



Source: Dakota County, SEH, Barr, HKGi.Well data is from the Dakota County Well and Water Management System (WELLMAN) and from Barr.

Active Well

Sealed Well


UMore Park Boundary


rjmMMQPQM

SOC #5

SOC #3

SOC#1

SOC #7

SOC #2

SOC #6

6007

6006

5874

5704263-C

260-F

260-B

260-A

260-H

260-D

260-C

260-G

707-T

126-T2

FSB-9

126-T1

127-T2

S-7-2

S-7-1

127-T

127-T1

126-T

260-E

FSB-11

SOC #4

SOC #8

A

B

C

D

E

BOIS

E C

IR

1 2 3Ba

rr F

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r: D

ate:

5/1

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9 3:

05:2

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: I:\

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Map

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OC

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xd U

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cls

1,000 0 1,000Feet

Figure 10

SITE OF CONCERN LOCATIONS



Source: Dakota County, Barr, SEH, HKGi.


UMore Park Boundary

Site of Concern (SOC) Boundary


SOC #1 Former Railroad "Y"SOC #2 Forestry Research/Former GOW StorageSOC #3 Ag. Engineering/K Street DumpSOC #4 Former DNT Platform and AOC 3-DA1SOC #5 Central Services/Former DNT Bunkers (AOC 5)SOC #6 Southern Complex Storage Buildings and Wash PadsSOC #7 Susp. Disposal AreaSOC #8 Undet. Use Area

260-H GOW-Era Building Name

Previously Mapped and Evaluated Site Number5152

rjmMMQPQN

SOC #1

Access roads to be clearedwith heavy equipment.

SOC1-SS1A, 1B, 1C

SOC1-SS3A, 3B, 3C

SOC1-SS2A, 2B, 2C

SOC1-GP3SOC1-GP1

SOC1-GP2

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11_R

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xd U

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cls

200 0 200Feet

Figure 11

SOC #1- RAILROAD "Y" SAMPLING LOCATIONS






Direct Push Boring for Soil Sampling

Direct Push Boring for Soil and/or Groundwater Sampling

Surface Soil Sampling


Notes: 1. Based on field observation, test trenches may consist of discontinuous test pits excavated throughout the planned trench limits.2. Sample locations are approximate and may vary depending on site conditions.

Surface Soil Sample

Former Railroad Grade

Surface Soil Sampling Detail

rjmMMQPQO

SOC #2

Area with visible rubble at surface

SOC2-TT1 SOC2-TT3

SOC2-TT5

SOC2-TT4

SOC2-TT2

SOC2-TT13

SOC2-TT12

SOC2-TT14

SOC2-TT10

SOC2-TT11

SOC2-TT9

SOC2-TT8

SOC2-TT7

SOC2-TT6

SOC2-TT15

127-T

127-T2

127-T1

126-T

126-T2

126-T1

S-7-2S-7-1

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2009

4:1

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SOC

2_V4

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100 0 100Feet

Figure 12

SOC #2 - FORESTRY RESEARCH/FORMER GOW STORAGE

SAMPLING LOCATIONS






Former GOW Building (location from Dakota Co.)

Test Trench



rjmMMQPQP

SOC #3

Access road to be clearedwith heavy equipment.

Possible buried electric in area (location to be determined prior to investigation). Research Stations

Research Tower

Research Trailers

Fuel Oil AST

PotentialCisternFormer

Lagoon1012

1010

1009 10071004

10031001

1002

10061008

Outlet Pipe

Manhole

SOC3-GP2

SOC3-GP1

WSW-207605

SOC3-GP3

SOC3-GP4

SOC3-TT5

SOC3-TT7

SOC3-TT2

SOC3-TT1

SOC3-TT4SOC3-TT3

SOC3-TT6

SOC3-TT9

SOC3-TT10

SOC3-TT8SOC3-TT11

SOC3-TT12

SOC3-TT13

SOC3-TT14

SOC3-TT15

SOC3-TT16

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4:2

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PM

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SOC

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150 0 150Feet

Figure 13

SOC #3 - AGRICULTURAL ENGINEERING/FORMER "K" STREET DUMP AREA

AND SAMPLING LOCATIONS








Water Sample from Existing Well

Test Trench

Standpipe with Hand Valve

GOW Era Sewer Line (from Dakota Co.)


Notes: 1. Based on field observation, test trenches may consist of discontinuous test pits excavated throughout the planned trench limits.2. Sample locations are approximate and may vary depending on site conditions.3. WSW = water supply well.4. Test trenches 9-16 will be used to determine extent of buried debris as needed.

rjmMMQPQQ

SOC #6

709

706

Old Pump House

702

703

707

708

SOC6-GP8

SOC6-GP7

SOC6-GP5

SOC6-GP6

SOC6-GP4

SOC6-GP2

SOC6-GP3

SOC6-GP1

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4:2

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14_R

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100 0 100Feet

Figure 14

SOC #6 - SOUTHERN COMPLEXSTORAGE BUILDINGS AND WASH PADS

SAMPLING LOCATIONS









Notes: 1. Sample locations are approximate and may vary depending on site conditions.

rjmMMQPQR

SOC #7

SOC7-TT1

SOC7-TT6

SOC7-TT5

SOC7-TT4

SOC7-TT3

SOC7-TT2 SOC7-TT7

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SOC

7_V4

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100 0 100Feet

Figure 15

SOC #7 - SUSPECTED DUMP AREA SAMPLING LOCATIONS





Test Trench

Approximate Location of Debris Fragments Observed in Surface Soil



rjmMMQPQS

SOC #8

SOC8-TT3

SOC8-TT1

SOC8-TT2

SOC8-TT6

SOC8-TT7

SOC8-TT4

SOC8-TT5

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Test Trench


100 0 100 200Feet

Figure 16

SOC #8 - UNDETERMINED USE AREAWEST OF PATROL ROAD (SOUTH OF CR 46)





rjmMMQPQT

3

46

42

160th St W

Station Tr

170th St W

150th St W

145th St E

Ann

ette

Ave

Akr

on A

ve

Rob

ert T

r S

58

North

ern N

atural

Gas

Com

pany

SOC #7

SOC #6

SOC #3

SOC #2

SOC #8

SOC #1

BACK-SS4

BACK-SS5

BACK-SS3

BACK-SS1

BACK-SS2

MW-B1-001

MW-E2-009MW-E2-209

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amp_

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2,000 0 2,000Feet

Figure 17

BACKGROUND SOIL ANDGROUNDWATER

SAMPLING LOCATIONS



Source: HKGi, MnDOT, Dakota County, Barr, SEH


UMore Park Boundary


Surface Soil Sampling

Monitoring Well Location


rjmMMQPQU

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Transcript of Tables - University of Minnesotapub/@ssrd/...Test trenches to extend 2 feet into unimpacted geologic...