Plan_View_Contamination_Maps_from_BOD_Report_Dec_2013.pdf

PDF 9 MB Posted

Attached to
10th Street Remedial Action - Phase II, Columbus
Solicitation number
SOL-R7-15-00012
Issued by

About this file

Attachment 5 Contamination Maps

View the file

Other files

File Type Posted
Soil_Figures_with_TCLP_Results.pdf PDF
Sol_SOL-R7-15-00012_Amd_000003.pdf PDF
Total_and_TCLP_VOCs_in_Soil_Data_Tables.pdf PDF
CommentResponses_07282015_LS.docx DOCX document
Total_and_TCLP_VOCs_in_Soil_Data_Tables.pdf PDF
Soil_Figures_with_TCLP_Results.pdf PDF
Sol_SOL-R7-15-00012_Amd_000003.pdf PDF
CommentResponses_07282015_LS.docx DOCX document
Soil_Figures_with_TCLP_Results.pdf PDF
Sol_SOL-R7-15-00012_Amd_000003.pdf PDF
Total_and_TCLP_VOCs_in_Soil_Data_Tables.pdf PDF
CommentResponses_07282015_LS.docx DOCX document
Soil_Figures_with_TCLP_Results.pdf PDF
Total_and_TCLP_VOCs_in_Soil_Data_Tables.pdf PDF
Sol_SOL-R7-15-00012_Amd_000003.pdf PDF
CommentResponses_07282015_LS.docx DOCX document
Sol_SOL-R7-15-00012_Amd_000002.pdf PDF
Revisedsol7_10_15.pdf PDF
10ST_REVSPECS_AC_072015_without_attachments.pdf PDF
Price_Schedule_10th_St_RA_Phase_II_Updated_8_July__Need_Landfill_diversion_incentive_included.docx DOCX document
Names.pdf PDF
Sol_SOL-R7-15-00012_Amd_000001.pdf PDF
PWS-9July2015.docx DOCX document
EPA__07-01-2015transcript.pdf PDF
QASP_7_7_2015.docx DOCX document
Q AAmendment_1.docx DOCX document
Sol_SOL-R7-15-00012.pdf PDF
DBwage.txt TXT text file
Drawings.pdf PDF
PWS-2June2015_KKC_notes_6_16_15_(3).docx DOCX document
QASP-11June2015_KKC_note_6_16_15.docx DOCX document
Specifications.pdf PDF
Show all 32

On GovTribe

Work with this file

  • Download the original file
  • Contacts named in this file
  • Similar government files
  • Ask GovTribe AI about this file

Text version

NE Hwy 30 (23rd St.)

th

A ve

Restaurant Food Fast

Storm Sewer

Storm Sewer Inlet

Street Light

Shed

Dry Cleaners

Building Treatment

Prestige

AS/SVE

Customer Area

Dry Cleaning Machine

Storage

Boiler Room

Sanitary Sewer Line

Boiler

Dry Cleaning Solvent & Waste Storage (Petroleum Distillate)

Sanitary Sewer Floor Drain

(OHM Grate)

Observed Connection to Sanitary Sewer (75' West of Manhole)

Gas in Alley

OHM-AB01

OHM-AB02

OHM-AB04

OHM-AB05 OHM-AB07

OHM-F01

OHM-E03

OHM-E01

OHM-D06

OHM-D07

OHM-D01

OHM-C05

OHM-C06

OHM-B04

OHM-A08

OHM-A06

OHM-A05

OHM-A04

OHM-A03OHM-A02

OHM-A01OHM-A09

OHM-D03

(1) - 100

(0.5) - 540(0.5) - 470

ND

(0.5) - 1,600

OHM-AB06

OHM-AA06

OHM-A07

OHM-B05

OHM-B06

OHM-B09

OHM-B03

OHM-B02

OHM-B01

OHM-A10

OHM-C07

OHM-C08

OHM-D04

OHM-D05

(1) - 160

(0.5) - 48,000

(0.5) - 580

(1) - 1,500

(1) - 290

(0.5) - 2,500

(0.5) - 6,500

(0.5) - 18,000

(0.5) - 1,900

ND

NDND

ND

ND

(1) - 640

(1) - 450

ND

(1) - 6,600

(1) - 510

(1) - 27,000

(1) - 23,000

(1) - 12,000

OHM-E04

OHM-AB08

OHM-D02

OHM-E02

OHM-C02 OHM-C01

OHM-C03

OHM-C04

OHM-F02

OHM-G01OHM-G02

OHM-G03

OHM-AA01

OHM-AA02

OHM-AA03

OHM-AA04

OHM-AA05

OHM-AB03

(1) - 900 ND

(0.5) - 1,400

(0.5) - 310

ND

ND

(1) - 150

OHM-B07

OHM-C10

OHM-C09

(1.5) - 300

(1.5) - 630

ND

(1) - 36,000

(1) - 1,300

(1) - 26

(1) - 100

(1) - 110

Sewer Line Gas Line

(1) - 1,300

(1) - 210

ND

ND

ND

(1) - 580

ND

ND

ND

ND

(1) - 1,400

OHM-AA07

NDND

OHM-AA08

ND

OHM-BB02OHM-BB01 OHM-BB03

ND

ND

ND

ND

ND

ND

ND

(0.16) - 52ND (0.16) - 36

(0.33) - 71

(0.33) - 290

ND

(0.33) - 19,000

ND

(0.33) - 31

ND

ND

ND

Boring 12 Boring 8

Boring 10

Boring 7

Boring 11

Boring 9

Boring 5

Boring 1 Boring 3

Boring 4

Boring 6

Boring 2

U.S. EPA

Region 7

Legend

Filename: Fig2-5 Soil_OHM_Results_PCE_0-2.dwg Task Order Number: 3370-002 Revised: 12/20/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.5 OHM Source Area Soil PCE Results

(0 to 2 feet)

10th Street OU2 Site, Columbus, Nebraska

Accelerated Remediation Technologies (ART) Integrated Remediation System well

Sand Vapor Extraction (SVE) well (~20' Deep)

Clay Vapor Extraction (CVE) well (~6' Deep)

Air Sparge (AS) well (~70' Deep)

Monitoring Well (MW) (~20' Deep)

Pilot Combined Injection and Extraction (PCIX) well

Existing 12" Water Line

Existing 8" Sanitary Sewer Line

Existing 24" Stormwater Line

Existing 10" Water Line

Sanitary Sewer Connection noted during sewer inspectionSSC

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg (unless noted otherwise)

PCE 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

PCE > 10,000 µg/kg

Residential Soil Risk Level of 550 µg/kg

Industrial Soil Risk Level of 2,600 µg/kg

Estimated contour

ND Not Detected

August 2009 DPT Soil Sample Location (> 60 µg/kg)

August 2009 DPT Soil Sample Location (< 60 µg/kg) th

A ve

Restaurant Food Fast

Storm Sewer

Storm Sewer Inlet

Street Light

Shed

Dry Cleaners

Building Treatment

Prestige

AS/SVE

Customer Area

Dry Cleaning Machine

Storage Boiler Room

Sanitary Sewer Line

Boiler

Dry Cleaning Solvent & Waste Storage (Petroleum Distillate)

Sanitary Sewer Floor Drain

(OHM Grate)

Observed Connection to Sanitary Sewer (75' West of Manhole)

Gas in Alley

OHM-AB01 OHM-AB02 OHM-AB04 OHM-AB05 OHM-AB07

OHM-F01

OHM-E03OHM-E01

OHM-D06

OHM-D07OHM-D01

OHM-C05

OHM-C06

OHM-B04

OHM-A08

OHM-A06

OHM-A05OHM-A04OHM-A03OHM-A02OHM-A01OHM-A09

OHM-D03

(6) - 150

ND

(6) - 140

OHM-AB06

OHM-AA06

OHM-A07

OHM-B05

OHM-B06 OHM-B09OHM-B03OHM-B02

OHM-B01

OHM-A10

OHM-C07 OHM-C08

OHM-D04 OHM-D05

(5) - 380

(6) - 78

ND

ND

ND

ND

ND

OHM-E04

OHM-AB08

OHM-D02

OHM-E02

OHM-C02 OHM-C01OHM-C03OHM-C04

OHM-F02

OHM-G01

OHM-G02OHM-G03

OHM-AA01 OHM-AA02 OHM-AA03 OHM-AA04 OHM-AA05

OHM-AB03

(5) - 480 (4.5) - 92 (4) - 450

(4) - 120

ND

ND

(5) - 83

OHM-B07

OHM-C10

OHM-C09

(5) - 31

(5) - 820

Sewer Line Gas Line

ND

ND

ND

ND

ND

ND

ND

OHM-AA07

NDND

OHM-AA08

ND

OHM-BB02OHM-BB01 OHM-BB03

ND

ND

ND

ND

NDNDNDND

ND ND ND ND ND

ND

NDND

ND ND

ND

NDND ND

NDNDND

ND

ND ND

ND

ND

ND

ND

ND

ND

NE Hwy 30 (23rd St.)

ND

NDND

ND

ND

ND

ND

ND

ND

ND

ND ND

Boring 12 Boring 8

Boring 10

Boring 7

Boring 11

Boring 9

Boring 5

Boring 1 Boring 3

Boring 4

Boring 6

Boring 2

U.S. EPA

Region 7

Legend

Filename: Fig2-6 Soil_OHM_Results_PCE_4-6.dwg Task Order Number: 3370-002 Revised: 12/20/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.6 OHM Source Area Soil PCE Results

(4 to 6 feet)

10th Street OU2 Site, Columbus, Nebraska

Accelerated Remediation Technologies (ART) Integrated Remediation System well

Sand Vapor Extraction (SVE) well (~20' Deep)

Clay Vapor Extraction (CVE) well (~6' Deep)

Air Sparge (AS) well (~70' Deep)

Monitoring Well (MW) (~20' Deep)

Pilot Combined Injection and Extraction (PCIX) well

Existing 12" Water Line

Existing 8" Sanitary Sewer Line

Existing 24" Stormwater Line

Existing 10" Water Line

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg (unless noted otherwise)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

Estimated contour

ND Not Detected

NE Hwy 30 (23rd St.)

th

A ve

Restaurant Food Fast

Storm Sewer

Storm Sewer Inlet

Street Light

Shed

Dry Cleaners

Building Treatment

Prestige

AS/SVE

Customer Area

Dry Cleaning Machine

StorageBoiler Room Sanitary Sewer Line

Boiler

Dry Cleaning Solvent & Waste Storage (Petroleum Distillate)

Sanitary Sewer Floor Drain

(OHM Grate)

Observed Connection to Sanitary Sewer (75' West of Manhole)

Gas in Alley

OHM-AB01 OHM-AB02 OHM-AB04 OHM-AB05 OHM-AB07

OHM-F01

OHM-E03OHM-E01

OHM-D06

OHM-D07OHM-D01

OHM-C05

OHM-C06

OHM-B04

OHM-A08OHM-A06OHM-A05OHM-A04OHM-A03OHM-A02

OHM-A01

OHM-A09

OHM-D03

ND

(8) - 69

OHM-AB06

OHM-AA06

OHM-A07

OHM-B05 OHM-B06 OHM-B09OHM-B03OHM-B02OHM-B01

OHM-A10

OHM-C07 OHM-C08

OHM-D04 OHM-D05

(9) - 110

(9) - 140

ND

(9.5) - 58J

ND

ND

ND

ND

OHM-E04

OHM-AB08

OHM-D02

OHM-E02

OHM-C02 OHM-C01OHM-C03OHM-C04

OHM-F02

OHM-G01

OHM-G02OHM-G03

OHM-AA01 OHM-AA02 OHM-AA03 OHM-AA04 OHM-AA05

OHM-AB03

(9) - 220

(8) - 170 (8) - 73

ND

ND

(7) - 82

OHM-B07

OHM-C10OHM-C09

Sewer Line Gas Line

ND

ND

ND

ND

ND

ND

ND

OHM-AA07

NDND

OHM-AA08

ND

OHM-BB02OHM-BB01 OHM-BB03

ND

ND

ND

ND

NDNDNDND

ND ND ND ND ND

NDND

ND

ND

NDND ND

ND

NDND

ND

ND

NDND

ND

NDND

ND

ND

ND ND

ND

ND

ND

ND

NDND

ND

ND

ND

ND

ND

ND

ND

ND ND

Boring 12 Boring 8

Boring 10

Boring 7

Boring 11

Boring 9

Boring 5

Boring 1 Boring 3

Boring 4

Boring 6

Boring 2

U.S. EPA

Region 7

Legend

Filename: Fig2-7 Soil_OHM_Results_PCE_7-10.dwg Task Order Number: 3370-002 Revised: 12/20/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.7 OHM Source Area Soil PCE Results

(7 to 10 feet)

10th Street OU2 Site, Columbus, Nebraska

Accelerated Remediation Technologies (ART) Integrated Remediation System well

Sand Vapor Extraction (SVE) well (~20' Deep)

Clay Vapor Extraction (CVE) well (~6' Deep)

Air Sparge (AS) well (~70' Deep)

Monitoring Well (MW) (~20' Deep)

Pilot Combined Injection and Extraction (PCIX) well

Existing 12" Water Line

Existing 8" Sanitary Sewer Line

Existing 24" Stormwater Line

Existing 10" Water Line

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg (unless noted otherwise)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

Estimated contour

U.S. EPA

Region 7

Figure 2.8 OHM Source Area

PCE Groundwater Sample Results (17 to 20 feet) April 2013

Legend

Sand Vapor Extraction (SVE) well (~20' Deep)

Clay Vapor Extraction (CVE) well (~6' Deep)

Air Sparge (AS) well (~70' Deep)

Filename: Fig2-8 20ft-PCE.dwg Task Order Number: 3370-002 Revised: 12/20/13 MMG

SCALE IN FEET

30 600 15

N

PCE (tetrachloroethene) 5 - 100 µg/L

PCE concentrations in micrograms per liter (µg/L)

Monitoring Well (MW) (~20' Deep)

Pilot Combined Injection and Extraction (PCIX) well

Accelerated Remediation Technologies (ART) Integrated Remediation System well

10th Street OU2 Site, Columbus, Nebraska

PCE 100 - 1000 µg/L

PCE 1,000 - 10,000 µg/L

Estimated Boundary

PCE > 10,000 µg/L

Figure 2.9 OHM Source Area

PCE Groundwater Sample Results (30 feet) April 2013

Legend

Sand Vapor Extraction (SVE) well (~20' Deep)

Clay Vapor Extraction (CVE) well (~6' Deep)

Air Sparge (AS) well (~70' Deep)

Filename: Fig2-9 30ft-PCE.dwg Task Order Number: 3370-002 Revised: 12/20/13 MMG

SCALE IN FEET

30 600 15

N

Monitoring Well (MW) (~30' Deep)

Pilot Combined Injection and Extraction (PCIX) well

Accelerated Remediation Technologies (ART) Integrated Remediation System well

PCE (tetrachloroethene) 5 - 100 µg/L

PCE 100 - 1,000 µg/L

10th Street OU2 Site, Columbus, Nebraska

Estimated Boundary

PCE concentrations in micrograms per liter (µg/L)15

Figure 2.10 OHM Source Area

PCE Groundwater Sample Results (50 feet) April 2013

Legend

Sand Vapor Extraction (SVE) well (~20' Deep)

Clay Vapor Extraction (CVE) well (~6' Deep)

Filename: Fig2-10 50ft-PCE.dwg Task Order Number: 3370-002 Revised: 12/20/13 MMG

SCALE IN FEET

30 600 15

N

Air Sparge (AS) well (~70' Deep)

Pilot Combined Injection and Extraction (PCIX) well

Monitoring Well (MW) (~50' Deep)

Accelerated Remediation Technologies (ART) Integrated Remediation System well

* This well is screened 89-99 feet below ground surface (bgs)

10th Street OU2 Site, Columbus, Nebraska

PCE (tetrachloroethene) 5 - 100 µg/L

PCE (tetrachloroethene) 100 - 1,000 µg/L

Estimated Boundary

PCE concentrations in micrograms per liter (µg/L)15

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Abandoned Water Service Line

JAC-I02

th

A ve

MW-5

9th St.

Alley

Top Score Games

Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

10' Spacing

RR

JAC-J06

JAC-L05JAC-L04JAC-L03

JAC-H05

JAC-I05

JAC-H09

TOP-L02*

JAC-M01

JAC-L07

JAC-K01

JAC-J07

JAC-I04

JAC-H06

JAC-H08

JAC-L06

JAC-J08

JAC-H07

JAC-F03

JAC-E07

JAC-B01

JAC-D08

JAC-E10

JAC-A01

JAC-A02 JAC-A03 JAC-A04

JAC-A05

JAC-A06

JAC-E08

RR

JAC-E06

JAC-F04

JAC-E05 JAC-E04

JAC-D03

JAC-E03

JAC-D01

TOP-J04TOP-J05

TOP-H04

JAC-J01

JAC-J02 JAC-J03

JAC-I01

JAC-I03

JAC-H03

JAC-H01

JAC-H02

JAC-F02

JAC-G02

JAC-G01

JAC-F01

JAC-E02

(1) - 30,000

(1) - 2,900

(1) - 14,000

ND

(1.5) - 7,000

JAC-G03

JAC-G06

JAC-G05

JAC-G04

(1) - 140

(1) - 1,300

Office

(1) - 2,500

(0) - 24,000

(1) - 15,000

NS

(1) - 530

ND

(1) - 350

(1) - 520

(1) - 650

(1) - 3,000

(2.5) - 830

(1) - 13,000

(1) - 7,900

TOP-L01*

Work Room

Main Room

Storage

Unfinished

RR

Settlement Pit

(2) - 3,900

(1) - 970

(1) - 880

(1) - 6,400

(1.5) - 340

(1) - 1,900

(1) - 7,500

(1) - 290

(1) - 4,500

(1) - 1,500

(1) - 450

(1) - 150

(1) - 1,300

(1) - 680

(1) - 140

(1) - 210

ND

ND

(1) - 79

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

JAC-B02

JAC-B03

JAC-A07

JAC-A09

JAC-A10 JAC-A12

JAC-A11

JAC-B08

JAC-B09

JAC-B10

JAC-B11

(1) - 4,500

(1) - 1,600

ND

(1) - 560 (1) - 1,000 (1) - 1,100

(1) - 730 (1) - 1,100

(1) - 600(1) - 3,600

(1) - 600

(1) - 2,200

ND

(1) - 4,300

(1) - 29,000

JAC-N01

JAC-O01

JAC-P04 JAC-P03 JAC-P02 JAC-P01

JAC-G07

JAC-D02JAC-D05

JAC-D06

JAC-B12

NDNDND

(1) - 1,500(1) - 600

ND

(1) - 600

(1) - 55,000(1) - 360,000

(1) - 12,000

JAC-B04

JAC-B05JAC-B06

JAC-B07

JAC-N04

JAC-N03

JAC-N02

ND

ND

ND

ND

ND

ND

(1) - 320

(1) - 400

(1) - 7,700

(1) - 6,000

(1) - 2,600

(1) - 5,500

(1) - 13,000

(1) - 8,900

(1) - 7,200(1) - 1,900

(1) - 450

(1) - 300,000

(1) - 680

JAC-M02

JAC-AA04

JAC-AA03 JAC-AA02 JAC-AA01

JAC-B13

NDNDND

ND

JAC-D07

JAC-E09

JAC-I06

JAC-M03

(1) - 290

(1) - 1,600

(1) - 6,100

(1) - 770

(1) - 5,000

(1) - 10,000

ND

(1) - 790

ND

ND

ND

ND

JAC-A08

NS

JAC-E01

Former Loading Dock

Office (Main Floor)

Boiler Room (Basement Level - No Access) Basement Level

(8 ft bgs)

Back Door

Former Dry Cleaning Machines

JAC-B14

JAC-A13

JAC-D09

JAC-E11

JAC-F05

JAC-G08

JAC-I07

JAC-J09

JAC-K02

(1) - 23J

(1) - 28

(1) - 11

ND

ND

(1) - 18

(1) - 12

ND

ND

U.S. EPA

Region 7

Legend

Filename: Fig2-11 Soil_Jackson_Results_PCE_0-2.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.11 Former Jackson Services Source Area

Soil PCE Results (0 to 2 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line E E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level (8 ft bgs)

DPT Soil Sample Location (> 60 µg/kg)

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

* TOP-L01 and TOP-L02 were only sampled to 6.5 feet and 9 feet respectively due to flowing sand.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

PCE 10,000 - 100,000 µg/kg

PCE > 100,000 µg/kg

Not DetectedND

Not SampledNS

Residential Soil Risk Level of 550 µg/kg

Industrial Soil Risk Level of 2,600 µg/kg

DPT Boring Location

Estimated contour

Former Loading Dock

Back Door

Former Dry Cleaning Machines

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G th

A ve

MW-5

9th St.

EL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL T

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Alley

Top Score Games

Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

10' Spacing

RR

JAC-J06

JAC-L05JAC-L04

JAC-L03

JAC-H05

JAC-I05

JAC-H09

TOP-L02*

JAC-M01

JAC-L07

JAC-K01

JAC-J07

JAC-I04

JAC-H06JAC-H08

JAC-L06

JAC-J08

JAC-H07

JAC-F03

JAC-E07

JAC-B01

JAC-D08

JAC-E10

JAC-A01 JAC-A02

JAC-A03

JAC-A04 JAC-A05

JAC-A06

JAC-E08

RR

JAC-E06

JAC-F04

JAC-E05

JAC-E04

JAC-D03

JAC-E03

JAC-D01

TOP-J04TOP-J05

TOP-H04

JAC-J01

JAC-J02

JAC-J03

JAC-I02 JAC-I01

JAC-I03

JAC-H03

JAC-H01

JAC-H02

JAC-F02

JAC-G02

JAC-G01

JAC-F01

JAC-E02

(4) - 2,100

(6) - 250

(6) - 160

NS

(4.5) - 150

JAC-G03

JAC-G06

JAC-G05

JAC-G04

ND

ND

Office

(4.5) - 260

(4) - 510

(5) - 86

(6) - 370(5) - 95

(5) - 200

(5) - 130

(6) - 180

(5) - 160

(5) - 260

(5) - 2,000

NS

(6) - 200

ND

TOP-L01*

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

(5.5) - 190

ND

ND

(6) - 260,000

(6) - 92

ND

ND

ND

(5) - 530

ND

ND

ND

ND

ND

ND

ND

ND

ND

(6) - 65

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

JAC-B02JAC-B03

JAC-A07

JAC-A09 JAC-A10 JAC-A12JAC-A11

JAC-B08

JAC-B09

JAC-B10

JAC-B11

(6) - 420

(6) - 190

ND ND

ND

ND (6) - 110

ND ND

(5) - 71

(5) - 180

ND ND ND

(4.5) - 240

JAC-E01

JAC-N01

JAC-O01

JAC-P04 JAC-P03 JAC-P02 JAC-P01

JAC-G07

JAC-D02

JAC-D05

JAC-D06 JAC-D04

JAC-B12

NDNDND

NDND ND

(5) - 340(4) - 660(5) - 2,600

(5) - 1,000

JAC-B04JAC-B05JAC-B06

JAC-B07

JAC-N04JAC-N03JAC-N02

ND

ND

ND

ND

ND

ND

ND

(5) - 100

(4) - 440

(5) - 66

(4) - 970

(5) - 430

ND

ND

(4.5) - 550

ND

(5.5) - 71

ND

(5) - 650

ND

JAC-M02

JAC-AA04 JAC-AA03 JAC-AA02 JAC-AA01

JAC-B13

NDNDNDND

JAC-D07

JAC-E09

JAC-I06

JAC-M03

(5) - 730

(5) - 380

ND

ND

(5) - 130

ND

ND

(4) - 360

ND

ND

ND ND

JAC-A08

Office (Main Floor)

Boiler Room (Basement Level - No Access)

Basement Level (8 ft bgs)

U.S. EPA

Region 7

Legend

Filename: Fig2-12 Soil_Jackson_Results_PCE_4-6.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.12 Former Jackson Services Source Area

Soil PCE Results (4 to 6 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line E E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level (8 ft bgs)

DPT Soil Sample Location (> 60 µg/kg)

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

* TOP-L01 and TOP-L02 were only sampled to 6.5 feet and 9 feet respectively due to flowing sand.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

PCE 10,000 - 100,000 µg/kg

PCE > 100,000 µg/kg

ND Not Detected

DPT Boring Location

NS Not Sampled

Former Loading Dock

Office (Main Floor)

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

Boiler Room (Basement Level - No Access) th

A ve

MW-5

9th St.

TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Alley

Top Score Games

Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

10' Spacing

RR

JAC-J06

JAC-L05JAC-L04JAC-L03

JAC-H05

JAC-I05

JAC-H09

TOP-L02*

JAC-M01

JAC-L07

JAC-K01

JAC-J07

JAC-I04

JAC-H06JAC-H08

JAC-L06

JAC-J08

JAC-H07

JAC-F03

JAC-E07

JAC-B01

JAC-D08

JAC-E10

JAC-A01 JAC-A02 JAC-A03 JAC-A04 JAC-A05 JAC-A06

JAC-E08

RR

JAC-E06

JAC-F04

JAC-E05

JAC-E04

JAC-D03

JAC-E03

JAC-D01

TOP-J04

TOP-J05

TOP-H04

JAC-J01

JAC-J02

JAC-J03

JAC-I02

JAC-I01

JAC-I03

JAC-H03 JAC-H01

JAC-H02

JAC-BL02JAC-BL03

JAC-BL01

JAC-F02

JAC-G02

JAC-G01

JAC-F01

JAC-E02

JAC-BL04

JAC-BL05

(8) - 160

(8) - 94

ND

(7) - 190

(7) - 120

JAC-G03

JAC-G06

JAC-G05 JAC-G04

ND

ND

Office

ND

(8) - 260

(7) - 200

(9) - 200

(7) - 69

ND

ND

ND

(7) - 100

(7) - 160

(7) - 290

(7) - 70

(8) - 150

(7) - 78

TOP-L01*

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

(7) - 97

(9) - 130

ND

ND

(7) - 18,000

(9) - 310

(10) - 110

ND

ND

ND

ND

ND

ND

ND

NDND

ND

ND

ND

ND

ND

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

JAC-B02JAC-B03

JAC-A07 JAC-A09 JAC-A10 JAC-A12JAC-A11

JAC-B08JAC-B09JAC-B10

JAC-B11

ND

ND

ND ND NDND ND ND

(7) - 110

JAC-E01

JAC-N01

JAC-O01

JAC-P04 JAC-P03 JAC-P02 JAC-P01

JAC-G07

JAC-D02

JAC-D05

JAC-D06

JAC-B12

NDNDND

NDND ND

(7) - 95

ND

(7) - 560(7) - 420

JAC-B04

JAC-B05

JAC-B06JAC-B07

JAC-N04JAC-N03JAC-N02

ND

ND

ND

ND

ND

ND

ND

(7) - 100

ND

ND(7) - 80

NDNDND

(10) - 100

ND

(8.5) - 95

(8.5) - 830 ND

ND

ND

ND

(7) - 190 (8.5) - 68

ND

JAC-M02

JAC-AA04 JAC-AA03 JAC-AA02 JAC-AA01

JAC-B13

NDNDNDND

JAC-D07

JAC-E09

JAC-I06

JAC-M03

ND

(7) - 130

ND

(7) - 170

ND

ND

ND

ND

ND

ND

ND ND

JAC-A08

ND ND ND ND ND ND

Basement Level (8 ft bgs)

Back Door

Former Dry Cleaning Machines

U.S. EPA

Region 7

Legend

Filename: Fig2-13 Soil_Jackson_Results_PCE_7-10.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.13 Former Jackson Services Source Area

Soil PCE Results (7 to 10 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line E E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level

DPT Soil Sample Location (> 60 µg/kg)

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

* TOP-L01 and TOP-L02 were only sampled to 6.5 feet and 9 feet respectively due to flowing sand.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

PCE 10,000 - 100,000 µg/kg

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

MW-5

9th St.

TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Alley

Top Score Games

Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

10' Spacing

RR

JAC-J06

JAC-L05JAC-L04JAC-L03

JAC-H05

JAC-I05

JAC-H09

TOP-L02*

JAC-M01

JAC-L07

JAC-K01

JAC-J07

JAC-I04

JAC-H06JAC-H08

JAC-L06

JAC-J08

JAC-H07

JAC-F03

JAC-E07

JAC-B01

JAC-D08

JAC-E10

JAC-A01 JAC-A02 JAC-A03 JAC-A04 JAC-A05 JAC-A06

JAC-E08

RR

JAC-E06

JAC-F04

JAC-E05 JAC-E04

JAC-D03

JAC-E03

JAC-D01

TOP-J04TOP-J05

TOP-H04

JAC-J01

JAC-J02 JAC-J03

JAC-I02 JAC-I01 JAC-I03

JAC-H03

JAC-H01

JAC-H02

JAC-BL02

JAC-BL03

JAC-BL01

JAC-F02

JAC-G02

JAC-G01

JAC-F01

JAC-E02

JAC-BL04

JAC-BL05

ND

ND

ND(11) - 940

ND

JAC-G03

JAC-G06 JAC-G05 JAC-G04

ND

ND

Office

ND

ND

ND

(13) - 6,900

ND

ND

ND

ND

NDND

(11) - 3,900

(11) - 1,100

ND

ND

TOP-L01*

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

(11) - 460

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

NDND

ND

ND

ND

ND

(11.5) - 1,500

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

JAC-B02JAC-B03

JAC-A07 JAC-A09 JAC-A10 JAC-A12JAC-A11

JAC-B08JAC-B09JAC-B10JAC-B11

ND

ND

ND ND

ND

JAC-E01

JAC-N01

JAC-O01

JAC-P04 JAC-P03 JAC-P02 JAC-P01

JAC-G07

JAC-D02JAC-D05JAC-D06

JAC-B12

NDNDND

NDND ND

(12) - 450

NDND

(12) - 180

JAC-B04

JAC-B05JAC-B06

JAC-B07

JAC-N04JAC-N03JAC-N02

ND

ND

ND

ND

ND

ND

ND

ND

ND NDND

ND

NDNDNDND

ND

ND

ND

ND

ND

ND

ND

ND

JAC-M02

JAC-AA04 JAC-AA03 JAC-AA02 JAC-AA01

JAC-B13

NDNDNDND

JAC-D07

JAC-E09

JAC-I06

JAC-M03

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND ND

JAC-A08

ND ND NDNDNDNDNDNDNDND

Former Loading Dock

Back Door

Former Dry Cleaning Machines

Office (Main Floor)

Boiler Room (Basement Level - No Access)

Basement Level (8 ft bgs)

U.S. EPA

Region 7

Legend

Filename: Fig2-14 Soil_Jackson_Results_PCE_11-13.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.14 Former Jackson Services Source Area

Soil PCE Results (11 to 13 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line E E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level ( 8 ft bgs)

DPT Soil Sample Location (> 60 µg/kg)

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

* TOP-L01 and TOP-L02 were only sampled to 6.5 feet and 9 feet respectively due to flowing sand.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

Office (No Access)

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

Boiler Room (basement level) th

A ve

MW-5

9th St.

TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Alley

Top Score Games

Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

10' Spacing

RR

JAC-J06

JAC-L05JAC-L04JAC-L03

JAC-H05

JAC-I05

JAC-H09

TOP-L02*

JAC-M01

JAC-L07

JAC-K01

JAC-J07

JAC-I04

JAC-H06JAC-H08

JAC-L06

JAC-J08

JAC-H07

JAC-F03

JAC-E07

JAC-B01

JAC-D08

JAC-E10

JAC-A01 JAC-A02 JAC-A03 JAC-A04 JAC-A05 JAC-A06

JAC-E08

RR

JAC-E06

JAC-F04

JAC-E05 JAC-E04

JAC-D03

JAC-E03

JAC-D01

TOP-J04TOP-J05

TOP-H04

JAC-J01 JAC-J02 JAC-J03

JAC-I02

JAC-I01

JAC-I03

JAC-H03

JAC-H01

JAC-H02

JAC-BL02

JAC-BL03

JAC-BL01

JAC-F02

JAC-G02

JAC-G01

JAC-F01

JAC-E02

JAC-BL04

JAC-BL05

(15) - 330

(14) - 160

ND

ND

ND

JAC-G03JAC-G06

JAC-G05

JAC-G04

ND

ND

Office

(16) - 160B

(16) - 1,500

(16) - 1,000

ND

ND

(16) - 86B

ND

ND

ND(15) - 270

(15.5) - 290

(15) - 110

(14) - 170

ND

TOP-L01*

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

(15) - 380

ND

ND

(14) - 160

ND

ND

ND

ND

ND

ND

ND

ND

NDND

ND

ND

ND

ND

(15.5) - 130

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

JAC-B02JAC-B03

JAC-A07 JAC-A09 JAC-A10 JAC-A12JAC-A11

JAC-B08JAC-B09JAC-B10JAC-B11

ND

ND

ND ND ND ND ND ND NDND ND ND ND ND

(14.5) - 88

JAC-E01

JAC-N01

JAC-O01

JAC-P04 JAC-P03 JAC-P02 JAC-P01

JAC-G07

JAC-D02JAC-D05JAC-D06

JAC-D04

JAC-B12

NDNDND

NDND NDNDND

(14) - 9,600

ND

JAC-B04JAC-B05

JAC-B06

JAC-B07

JAC-N04JAC-N03JAC-N02

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

NDNDNDNDND

ND

ND

ND

ND

ND

ND

ND

ND

JAC-M02

JAC-AA04 JAC-AA03 JAC-AA02 JAC-AA01

JAC-B13

NDNDNDND

JAC-D07

JAC-E09

JAC-I06

JAC-M03

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND ND

JAC-A08

Basement Level (8 ft bgs)

U.S. EPA

Region 7

Legend

Filename: Fig2-15 Soil_Jackson_Results_PCE_14-16.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

SCALE IN FEET

20 400 10

N

Figure 2.15 Former Jackson Services Source Area

Soil PCE Results (14 to 16 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line E E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level (8 ft bgs)

DPT Soil Sample Location (> 60 µg/kg)

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

* TOP-L01 and TOP-L02 were only sampled to 6.5 feet and 9 feet respectively due to flowing sand.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

Not DetectedND

B Analyte was found in associated method blank as well as sample

C A

CATV

Cleaners Liberty

Services Jackson Former

Office (No Access)

G G G G G G G G G G G G G G G G G

Boiler Room (basement level) th

A ve

MW-5

TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL TEL

E E E E E E E E E E E E E E E E E E E E

Alley

Top Score Games Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

RR

RR

Office

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

Basement Level (8 ft bgs)

JAC-GW19 JAC-GW18 JAC-GW17

JAC-GW13

JAC-GW09

JAC-GW10

JAC-GW11

JAC-GW08

JAC-GW15

JAC-GW12

JAC-GW14

JAC-GW07

JAC-GW01

JAC-GW16

JAC-GW06

JAC-GW04

JAC-GW05

JAC-GW03

JAC-GW02

9th St.

2.68.661

PCE TCE cisDepth (ft.)

135.124

PCE TCE cisDepth (ft.)

2.51368

PCE TCE cisDepth (ft.)

1U6.136.6

PCE TCE cisDepth (ft.)

16 9.620.7151.3J

PCE TCE cisDepth (ft.)

16 23.923.4148.2J

PCE TCE cisDepth (ft.)

6.1

3.53.1

PCE TCE cisDepth (ft.)

17 17.6

101.5

PCE TCE cisDepth (ft.)

14 18

172413

PCE TCE cisDepth (ft.)

8.3J1870

PCE TCE cisDepth (ft.)

131629

PCE TCE cisDepth (ft.)

13.130.53

PCE TCE cisDepth (ft.)

15.91.6

PCE TCE cisDepth (ft.)

2.312.51.2

PCE TCE cisDepth (ft.)

2.46.418

PCE TCE cisDepth (ft.)

2.1822

PCE TCE cisDepth (ft.)

3.53.5

PCE TCE cisDepth (ft.)

14 22 5.13.5

PCE TCE cisDepth (ft.)

14 11

1U1.6

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.)

1U

U.S. EPA

Region 7

Legend

Filename: Fig2-16_Jackson_GWSampLocs_16.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

Figure 2.16 Former Jackson Services Source Area

Groundwater Results (16 feet bgs) April 2011

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line

TEL Existing Telephone Line

G Existing Natural Gas Line

E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level (8 ft bgs)

DPT Groundwater Sample Locations

SCALE IN FEET

25 500 12.5

N

37 Concentrations in µg/L from EPA Region 7 lab

37 Concentrations in µg/L from EPA mobile lab

J Estimated

U Not detected above stated reporting limit

ft. Feet below ground surface

PCE (tetrachloroethene) 5 - 50 µg/L

PCE 50 - 100 µg/L

PCE 100 - 500 µg/L

1. DPT groundwater samples collected in March 2011 and June 2011. Monitoring well groundwater samples collected in April 2011.

2. Inset map plume based on April 2011 monitoring well groundwater samples. The former Jackson Services source area and the surrounding area has TCE groundwater concentrations are generally greater than 5 µg/L. The larger TCE plume is not shown on the figure; only PCE plumes greater than 5 µg/L were mapped for clarity.

TCE 5 - 50 µg/L

INSET MAP

Office (No Access)

G G G G G G G G G G G G G

Boiler Room (basement level) th

A ve

MW-5

Alley

Top Score Games Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

RR

RR

Office

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

Gas Line

Current Gas Line

Abandoned Water Service Line

Basement Level (8 ft bgs)

JAC-GW19 JAC-GW18 JAC-GW17

JAC-GW13

JAC-GW09

JAC-GW10

JAC-GW11

JAC-GW08

JAC-GW15

JAC-GW12

JAC-GW14

JAC-GW07

JAC-GW01

JAC-GW16

JAC-GW06

JAC-GW04

JAC-GW05

JAC-GW03

JAC-GW02

9th St.

PCE TCE cisDepth (ft.)

18830.5U30

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.)

28620.5U30

PCE TCE cisDepth (ft.)

47.33.61.730

50.230

PCE TCE cisDepth (ft.)

270.9930 5.3

PCE TCE cisDepth (ft.)

162.230 19

PCE TCE cisDepth (ft.)

8.230 446.7

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.)

13250.5U30

PCE TCE cisDepth (ft.)

42170.5U30

PCE TCE cisDepth (ft.)

12.156.31U30

PCE TCE cisDepth (ft.)

22.5145.8J1U30

PCE TCE cisDepth (ft.)

32.4141U30

PCE TCE cisDepth (ft.)

18110.5U30

PCE TCE cisDepth (ft.)

4.5 35

33.128.4

PCE TCE cisDepth (ft.)

22290.5U30

36440.5U30

31393.330

PCE TCE cisDepth (ft.)

15.34.430

PCE TCE cisDepth (ft.)

17.4430

Cleaners Liberty

Services Jackson Former

U.S. EPA

Region 7

Legend

Filename: Fig2-17_Jackson_GWSampLocs_30.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

Figure 2.17 Former Jackson Services Source Area

Groundwater Results (30 feet bgs) April 2011

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line

TEL Existing Telephone Line

G Existing Natural Gas Line

E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level (8 ft bgs)

DPT Groundwater Sample Locations

SCALE IN FEET

25 500 12.5

N

37 Concentrations in µg/L from EPA Region 7 lab

37 Concentrations in µg/L from EPA mobile lab

J Estimated

U Not detected above stated reporting limit

ft. Feet below ground surface

PCE (tetrachloroethene) 5 - 50 µg/L

TCE 50 - 100 µg/L

Estimated contour

1. DPT groundwater samples collected in March 2011 and June 2011. Monitoring well groundwater samples collected in April 2011.

2. Inset map plume based on April 2011 monitoring well groundwater samples.

The former Jackson Services source area and surrounding areas TCE groundwater concentrations are generally greater than 5 µg/L. The larger TCE plume is not shown on the figure; only the TCE plumes greater than 50 µg/L were mapped for clarity.

TCE 100 - 500 µg/LTCE 5 - 50 µg/L

Cleaners Liberty

Services Jackson Former

Office (No Access)

G G G G G G G G G G G G G

Boiler Room (basement level) th

A ve

MW-5

E E E E E E E E E E E E E E E

Alley

Top Score Games Bailer

Office

Bermed Area

RR

City Recycling Center

Drain indicated on site sketches (Not observed)

RR

RR

Office

Work Room Main Room

Storage

Unfinished

RR

Settlement Pit

Abandoned Gas Line

Current Gas Line

Abandoned Water Service Line

Basement Level (8 ft bgs)

JAC-GW19 JAC-GW18 JAC-GW17

JAC-GW13

JAC-GW09

JAC-GW10

JAC-GW11

JAC-GW08

JAC-GW15

JAC-GW12

JAC-GW14

JAC-GW07

JAC-GW01

JAC-GW16

JAC-GW06

JAC-GW04

JAC-GW05

JAC-GW03

JAC-GW02

9th St.

PCE TCE cisDepth (ft.)

141701U60

PCE TCE cisDepth (ft.)

111200.5U60

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.) PCE TCE cisDepth (ft.) PCE TCE cisDepth (ft.)

23.7192J1U60

PCE TCE cisDepth (ft.)

25.13.460

12.658 38J

3.858 110J10

PCE TCE cisDepth (ft.)

3.9J58 955.2

PCE TCE cis

161100.660

Depth (ft.)

PCE TCE cisDepth (ft.)

181300.5UJ60

PCE TCE cisDepth (ft.)

30.4177.5J1U56

PCE TCE cisDepth (ft.)

48.11U 182.7J

PCE TCE cisDepth (ft.)

32.9212.6J1U60

PCE TCE cisDepth (ft.)

411701U60

PCE TCE cisDepth (ft.)

113.5J

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.)

PCE TCE cisDepth (ft.)

6.760 1400.5U

PCE TCE cis

101601U60

Depth (ft.)

181401U60

24198.2J1U60

39.7219.1J1U60 34.4178.6J5.460

PCE TCE cisDepth (ft.)

310.5U60 280

U.S. EPA

Region 7

Legend

Filename: Fig2-18_Jackson_GWSampLocs_60.dwg Task Order Number: 3370-002 Revised: 11/11/13 MMG

Figure 2.18 Former Jackson Services Source Area

Groundwater Results (60 feet bgs) April 2011

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line

TEL Existing Telephone Line

G Existing Natural Gas Line

E Existing Electrical Line

Floor Drain

Sanitary Sewer Lines within Building

Rest RoomRR

Features indicated inside this area are at basement level (8 ft bgs)

DPT Groundwater Sample Locations

SCALE IN FEET

25 500 12.5

N

37 Concentrations in µg/L from EPA Region 7 lab

37 Concentrations in µg/L from EPA mobile lab

J Estimated

U Not detected above stated reporting limit

ft. Feet below ground surface

PCE (tetrachloroethene) 5 - 50 µg/L

TCE 5 - 50 µg/L

TCE 50 - 100 µg/L

1. DPT groundwater samples collected in March 2011 and June 2011. Monitoring well groundwater samples collected in April 2011.

2. Inset map based on April 2011 monitoring well groundwater samples. The former Jackson Services source area and the surrounding area TCE groundwater concentrations are generally greater than 5 µg/L. The larger TCE plume is not shown on the figure; only the TCE plumes greater than 50 µg/L were mapped for clarity.

Estimated contour

TCE 100 - 500 µg/L

INSET

MAP

Former Dry Cleaning Machine

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

G G G

G G

G G

G GAlley th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

G G

G G

G G

G G

G G

G G

G G

Front Door

LIB-A09 LIB-A01

LIB-A02

LIB-A03 LIB-A04

LIB-B03

LIB-B04 LIB-B01

LIB-C05

LIB-C04

LIB-C01

LIB-C06 LIB-C02

LIB-D03

LIB-D02 LIB-D01

LIB-E01 LIB-E05 LIB-E04

LIB-E03LIB-E02

LIB-Z11 LIB-Z01

LIB-Z02

LIB-Z09

LIB-Z07

LIB-Z08

LIB-Z04

MW-1

(6) - 220

(6) - 5,300

(4) - 200

(5) - 64

LIB-Z03

LIB-Z06

LIB-Z05

(5) - 240

ND

(4.5) - 160

LIB-AA01LIB-AA02 ND

ND

LIB-C03

ND

LIB-AA03

ND

G

G G

G G

G G

LIB-B02

LIB-A10LIB-A11

LIB-A12

LIB-A07LIB-A06LIB-A05LIB-A08

(5) - 250

LIB-F01LIB-F02LIB-F03Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

(4) - 290

LIB-AA04

(6) - 100

(6) - 300

ND ND

ND

ND

ND

ND

ND

ND

ND

LIB-E06

LIB-E07

LIB-E11

LIB-E10

LIB-E08

LIB-E09

LIB-CC02

LIB-BB02

LIB-AA05

(6) - 560

ND

ND

ND

(5) - 1,100

ND

(5) - 320

(5) - 1,500

(5) - 190

ND

ND

LIB-BB01

ND

LIB-CC01

ND

LIB-AX01

ND

(5) - 1,100

ND

ND ND

ND

LIB-CC03

LIB-DD01LIB-DD02

LIB-DD03

LIB-Z10

ND

ND

NDND

ND

NDND

ND

ND

NDND

ND

ND

ND

ND ND

ND

ND ND

ND

ND

Liberty Cleaners

Former Liberty Cleaners

Warehouse Property

Machine Room

U.S. EPA

Region 7

Legend

Filename: Fig2-23 Soil_Liberty_Results_PCE_4-6.dwg Task Order Number: 3370-002 Revised: 12/23/13 MMG

SCALE IN FEET

15 300 7.5

N

Figure 2.23 Liberty Cleaners Source Area

Soil PCE Results (4 to 6 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

Total dimensions of building are 74' x 66'. Liberty Cleaners is 21.5' x 66'.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

PCE 1,000 - 10,000 µg/kg

Estimated contour

Not DetectedND

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

G G G

G G

G G

G GAlley th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

G G

G G

G G

G G

G G

G G

G G

Front Door

LIB-A09

LIB-A01

LIB-A02

LIB-A03 LIB-A04

LIB-B03 LIB-B04 LIB-B01

LIB-C05

LIB-C04

LIB-C01 LIB-C06 LIB-C02

LIB-D03 LIB-D02 LIB-D01

LIB-E01 LIB-E05 LIB-E04

LIB-E03LIB-E02

LIB-Z11 LIB-Z01

LIB-Z02

LIB-Z09

LIB-Z07

LIB-Z08

LIB-Z04

MW-1

(8) - 290

(7) - 240

(9) - 110

LIB-Z03

LIB-Z06

LIB-Z05

ND

ND

LIB-AA01

LIB-AA02

(7) - 61

ND

LIB-C03

LIB-AA03

G

G G

G G

G G

LIB-B02

LIB-A10

LIB-A11

LIB-A12

LIB-A07LIB-A06LIB-A05LIB-A08

(9) - 1,200

LIB-F01LIB-F02LIB-F03Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

(10) - 240

LIB-AA04

(8) - 64

ND

ND

ND

ND

ND

ND

LIB-E06

LIB-E07

LIB-E11

LIB-E10

LIB-E08

LIB-E09

LIB-CC02

LIB-BB02

LIB-AA05

(9) - 220

(10) - 90

ND

ND

(7) - 170

(10) - 610

(10) - 240

(9) - 91

ND

ND

LIB-BB01

ND

LIB-CC01

ND

LIB-AX01

ND

(10) - 66

ND

(8) - 250

ND ND

ND

LIB-CC03

LIB-DD01LIB-DD02

LIB-DD03

LIB-Z10

ND

NDND

ND

NDND

ND ND

ND

ND

ND

NDND

ND

NDND

ND

ND

ND

ND

ND

NDND

ND

ND

ND

ND

ND

ND

Former Dry Cleaning Machine

Machine Room

Former Liberty Cleaners

Warehouse Property

Liberty Cleaners

U.S. EPA

Region 7

Legend

Filename: Fig2-24 Soil_Liberty_Results_PCE_7-10.dwg Task Order Number: 3370-002 Revised: 12/23/13 MMG

SCALE IN FEET

15 300 7.5

N

Figure 2.24 Liberty Cleaners Source Area

Soil PCE Results (7 to 10 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

Total dimensions of building are 74' x 66'. Liberty Cleaners is 21.5' x 66'.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

PCE (tetrachloroethene) 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

G G

G G

G GAlley th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

G G

G G

G G

G G

G G

G G

G G

Front Door

LIB-A09 LIB-A01

LIB-A02

LIB-A03 LIB-A04

LIB-B03 LIB-B04 LIB-B01

LIB-C05

LIB-C04

LIB-C01 LIB-C06 LIB-C02

LIB-D03 LIB-D02 LIB-D01

LIB-E01

LIB-E05

LIB-E04

LIB-E03LIB-E02

LIB-Z11

LIB-Z01

LIB-Z02

LIB-Z09

LIB-Z07

LIB-Z08

LIB-Z04

MW-1

(12) - 5,200

(11) - 550

LIB-Z03

LIB-Z06

LIB-Z05

(11) - 210

(11) - 210

ND

LIB-AA01LIB-AA02

ND

LIB-C03

LIB-AA03

G

G G

G G

G G

LIB-B02

LIB-A10

LIB-A11

LIB-A12

LIB-A07LIB-A06LIB-A05LIB-A08

(12) - 2,300

LIB-F01LIB-F02LIB-F03Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

LIB-AA04

(12) - 600 ND

ND

ND

(11) - 110

ND

ND

(13) - 140

LIB-E06

LIB-E07

LIB-E11

LIB-E10

LIB-E08

LIB-E09

LIB-CC02

LIB-BB02

LIB-AA05

(13) - 81 (12) - 1,100

ND

ND

(11) - 120

ND

(11) - 1,000

ND

LIB-BB01

ND

LIB-CC01

ND

LIB-AX01

ND

ND

ND ND

ND

LIB-CC03

LIB-DD01LIB-DD02

LIB-DD03

LIB-Z10

ND

NDND

ND

ND

ND

ND

ND

ND

ND

NDND

ND

ND

(12) - 69ND

ND

NDND ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

NDND

ND

ND ND

Former Dry Cleaning Machine

Machine Room

Former Liberty Cleaners

Warehouse Property

Liberty Cleaners

U.S. EPA

Region 7

Legend

Filename: Fig2-25 Soil_Liberty_Results_PCE_11-13.dwg Task Order Number: 3370-002 Revised: 12/23/13 MMG

SCALE IN FEET

15 300 7.5

N

Figure 2.25 Liberty Cleaners Source Area

Soil PCE Results (11 to 13 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

Total dimensions of building are 74' x 66'. Liberty Cleaners is 21.5' x 66'.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

PCE 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

G G

G G

G GAlley th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

G G

G G

G G

G G

G G

G G

G G

Front Door

LIB-A09 LIB-A01 LIB-A02 LIB-A03 LIB-A04

LIB-B03 LIB-B04 LIB-B01

LIB-C05

LIB-C04

LIB-C01 LIB-C06 LIB-C02

LIB-D03 LIB-D02 LIB-D01

LIB-E01 LIB-E05 LIB-E04

LIB-E03LIB-E02

LIB-Z11 LIB-Z01

LIB-Z02

LIB-Z09

LIB-Z07 LIB-Z08

LIB-Z04

MW-1

(16) - 3,700(16) - 840

LIB-Z03

LIB-Z06

LIB-Z05

ND

LIB-AA01LIB-AA02

ND

LIB-C03

LIB-AA03

G

G G

G G

G G

LIB-B02

LIB-A10LIB-A11

LIB-A12

LIB-A07LIB-A06LIB-A05LIB-A08

LIB-F01LIB-F02LIB-F03Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

LIB-AA04

ND

ND

ND ND

ND

LIB-E06

LIB-E07

LIB-E11

LIB-E10

LIB-E08

LIB-E09

LIB-CC02

LIB-BB02

LIB-AA05

ND

ND

ND

ND

LIB-BB01

ND

LIB-CC01

ND

LIB-AX01

ND

ND

ND ND

ND

LIB-CC03

LIB-DD01LIB-DD02

LIB-DD03

LIB-Z10

ND

NDND

ND

NDND

ND

NDND

ND

NDND

NDND

ND

ND

ND

ND

ND

ND

ND

ND

NDND

ND

ND

ND ND

ND

ND

ND

NDND NDND

ND

ND ND ND ND

ND

ND

ND

ND

Former Dry Cleaning Machine

Machine Room

Former Liberty Cleaners

Warehouse Property

Liberty Cleaners

U.S. EPA

Region 7

Legend

Filename: Fig2-26 Soil_Liberty_Results_PCE_14-16.dwg Task Order Number: 3370-002 Revised: 12/23/13 MMG

SCALE IN FEET

15 300 7.5

N

Figure 2.26 Liberty Cleaners Source Area

Soil PCE Results (14 to 16 feet)

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

Note:

Sample depth indicated is from the top of the 0.5' sample interval.

Total dimensions of building are 74' x 66'. Liberty Cleaners is 21.5' x 66'.

(2) - 1,000 (feet bgs) - PCE concentration in µg/kg

DPT Soil Sample Location (> 60 µg/kg)

DPT Soil Sample Location (< 60 µg/kg)

PCE 60 - 100 µg/kg

PCE 100 - 1,000 µg/kg

Services Jackson

Cleaners Liberty

Former

Alley

10th Street th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

Front Door

MW-1

Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

Former Dry Cleaning Machine

Machine Room

Former Liberty Cleaners

Warehouse Property

Liberty CleanersLIB-GW14

LIB-GW15

LIB-GW16

LIB-GW01 LIB-GW02

LIB-GW03

LIB-GW13

LIB-GW08

LIB-GW11

LIB-GW07

LIB-GW12

LIB-GW10 LIB-GW09

LIB-GW04 LIB-GW05 LIB-GW06

PCE TCE cisDepth (ft.)

5.51.823.1

PCE TCE cisDepth (ft.)

117.7

MW-2

U.S. EPA

Region 7

Legend

Filename: Fig-2-27_Liberty_GWSampLocs_16.dwg Task Order Number: 3370-002 Revised: 11/8/13 MMG

SCALE IN FEET

25 500 12.5

N

Figure 2.27 Liberty Cleaners Source Area

Groundwater Results (16 feet bgs) April 2011

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

DPT Groundwater Sample Locations

1. DPT groundwater samples collected in March 2011 and June 2011. Monitoring well groundwater samples collected in April 2011.

2. Inset map plume based on April 2011 monitoring well groundwater samples.

J Estimated

U Not detected above stated reporting limit

ft. Feet below ground surface

PCE 5 - 50 µg/L

PCE 50 - 100 µg/L

Estimated contour

TCE 5 - 50 µg/L

Alley

10th Street th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

Front Door

MW-1

Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

Former Dry Cleaning Machine

Machine Room

Former Liberty Cleaners

Warehouse Property

Liberty CleanersLIB-GW14

LIB-GW15

LIB-GW16

LIB-GW01

LIB-GW02

LIB-GW03

LIB-GW13

LIB-GW08

LIB-GW11

LIB-GW07

LIB-GW12

LIB-GW10 LIB-GW09

LIB-GW04 LIB-GW05 LIB-GW06

Cleaners Liberty

Services Jackson Former

U.S. EPA

Region 7

Legend

Filename: Fig-2-28_Liberty_GWSampLocs_30.dwg Task Order Number: 3370-002 Revised: 11/8/13 MMG

SCALE IN FEET

25 500 12.5

N

Figure 2.28 Liberty Cleaners Source Area

Groundwater Results (30 feet bgs) April 2011

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

DPT Groundwater Sample Locations

1. DPT groundwater samples collected in March 2011 and June 2011. Monitoring well groundwater samples collected in April 2011.

2. Inset map plume based on April 2011 monitoring well groundwater samples.

J Estimated

U Not detected above stated reporting limit

ft. Feet below ground surface

PCE 5 - 50 µg/L

TCE 5 - 50 µg/L

Estimated contour

TCE 50 - 100 µg/L

MW-13

Cleaners Liberty

Services Jackson Former

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

G G

G G

G

Alley

10th Street th

A ve nu e

E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E

Front Office

Press Room

RR

G G

G G

G G

G G

Front Door

MW-1

G G

G

Warehouse Property Fenced Yard

Steel Plate Above ground water faucet

Former Dry Cleaning Machine

Machine Room

Former Liberty Cleaners

Warehouse Property

Liberty CleanersLIB-GW14

LIB-GW15

LIB-GW16

LIB-GW01

LIB-GW02

LIB-GW03

LIB-GW13

LIB-GW08

LIB-GW11

LIB-GW07

LIB-GW12

LIB-GW10 LIB-GW09

LIB-GW04 LIB-GW05 LIB-GW06

MW-2

U.S. EPA

Region 7

Legend

Filename: Fig2-29_Liberty_GWSampLocs_60.dwg Task Order Number: 3370-002 Revised: 11/8/13 MMG

SCALE IN FEET

25 500 12.5

N

Figure 2.29 Liberty Cleaners Source Area

Groundwater Results (60 feet bgs) April 2011

10th Street OU2 Site, Columbus, Nebraska

Monitoring Well (MW)

Existing 6" Sanitary Sewer Line TEL TEL Existing Telephone Line

G G Existing Natural Gas Line (Underground) E E Existing Electrical Line (Underground)

Rest RoomRR

DPT Groundwater Sample Locations

J Estimated

U Not detected above stated reporting limit

ft. Feet below ground surface

TCE 5 - 50 µg/L

TCE 50 - 100 µg/L cis 70 - 200 µg/L

TCE 100 - 500 µg/L

Estimated contour

1. DPT groundwater samples collected March 2011 and June 2011.

Monitoring well groundwater samples collected in April 2011.

2. Inset map based on April 2011 monitoring well groundwater samples. The Liberty Cleaners source area and the surrounding area TCE groundwater concentrations are generally greater than 5 µg/L. The larger TCE plume is not shown on the figure; only the TCE plumes greater than 50 µg/L were mapped for clarity.

INSET

MAP

File details come from the government source that posted it. Updated .