FIGURES  

 

Pierce County

T 21 N/R 03 E - 26

PM: RAB

January 2012

1922-046F

Site DiagramTacoma Public Utilities: Steam Plant

Figure 1

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5

RNB15

RNB14

RNB13

P3

RNB6

MW-6AMW-6B

MW-7B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Shoreline

Substation

Asphalt

AsphaltBench

StormwaterDepression

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

DOF-2

DOF-1

Tower

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos Waterway

RNB3

Legend:

Monitor Well Location

Borehole Location

NApproximateAerial Boundary

TAYLOR WAY

EAST 11

TH STR

EET

N

300’0’

Note: Image from Tacoma govMe Website

Scale 1” = ~300’

Note: Basemap taken from USGS Tacoma North Quad

Scale 1” = 1000’

N

0’ 1000’

120’0’

ID Northing Easting ID Northing Easting

RNB1 47.27676 -122.39391 MW68 47.27598 -122.39394

RNB2 47.27661 -122.39399 RNB13 47.27618 -122.39355

RNB3 47.27641 -122.39408 RNB14 47.27632 -122.39359

RNB4 47.27648 -122.39425 RNB15 47.27644 -122.39365

RNB5 47.27637 -122.39387 MW7A 47.27667 -122.39365

RNB6 47.2761 -122.39396 MW7B 47.27667 -122.39363

RNB7 47.27605 -122.39337 MW8A 47.27629 -122.39404

RNB8 47.27628 -122.39341 MW8B 47.27629 -122.39401

RNB9 47.27661 -122.39349 DOF-1 47.27655 -122.39371

RNB10 47.27620 -122.39306 DOF-2 47.27625 -122.39284

RNB11 57.27587 -122.39350 P3 47.27605 -122.39352

MW6A 47.27595 -122.39393

Well Location GPS Coordinates

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

1’1’

3’

3’

5’

5’

7’

?

?

Shallow Water LevelsTacoma Public Utilities: Steam Plant pH Investigation

Figure 3

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5RNB15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Shoreline

Substation

Asphalt

AsphaltBench

StormwaterDepression

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos Waterway

7.73’

9.94’

10.59’

8.56’

9.16’

11’

10’

9’

8’

7’

P3

7’

7’

MW-7B Well location / ID

Groundwater contourinterval

Approximate crushedconcrete fill layer

Water level elevationmeasured on 11/15/11

9.64’

Legend:

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

1’1’

3’

3’

5’

5’

7’

?

?

Deep Water LevelsTacoma Public Utilities: Steam Plant pH Investigation

Figure 4

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5RNB15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Shoreline

Substation

Asphalt

AsphaltBench

StormwaterDepression

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos Waterway

8.96’

7.64’

9.16’

P3

N

120’0’

7’

7’

MW-7B

Legend:

Well location / ID

Groundwater contourinterval

Approximate crushedconcrete fill layer

Water level elevationmeasured on 11/15/11

Groundwater FlowDirection

9.64’

10’

9’

8’ 7’

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

Soil pH and Crushed Concrete Layer Location MapTacoma Public Utilities: Steam Plant pH Investigation

Figure 5

1’1’

3’

3’

5’

5’

7’

?

?

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5RNB15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Substation

Asphalt

AsphaltBench

StormwaterDepression

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

Shoreline

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos Waterway

P3

Depth Field Lab Depth Field Lab Depth Field Lab Depth Field Lab

RN B1 RN B5 cont. RN B10 MW-6A/B 1 6.54 5 10.53 1 8.84 1 8.41

3.5 6.9 7 10.41 5 8.6 2.5 7.31 5 7.89 B6 6 8.2 4 6.06 7 8.31 1 11.22 11.59 7.5 8.35 5 7.05 8 8.15 2.5 9.64 10 8.65 6 6.92

10 7.65 5 9.33 12 7.55 7.5 6.65 12 7.45 6 9.51 RN B11 10 6.59 13 8.1 7.5 9 1 9.7 12 7.03 15 7.2 10 8.98 2.5 10.25 13.5 5.8 16 6.9 12.5 8.35 5 11.07 11.84 15 5.72

17.5 6.7 14.5 8.69 7.5 6.93 17.5 5.46 20 6.07 15 8.63 10 7.62 20 6.05 RN B2 RN B7 11 7.11 MW-7A 1 8.43 1 9.75 12 7.03 1 9.73

2.5 9.71 10.13 2.5 11.65 11.38 12.5 6.31 4 11.35 4 9.06 5 9.45 13.5 5.8 7 8.83 5 9.35 6 8.15 15 5.72 10 7.95 7 9.11 7.5 8.7 17.5 5.46 12.5 8.05

8.5 8.21 10 8.98 20 6.05 15 8.14 10 8.89 RN B8 RN B13 MW-7B

RN B3A/B 1 7.75 1 9.43 1 12.42 11.2 2 11.24 11.65 2.5 9.02 2 8.15 1.5 9.73

5 (A) 11.05 10.18 5 8.7 2.5 11.4 5 8.78 5 (B) 10.91 6 6.93 5 6.35 6.5 10.95 10.55

6 11.31 11.63 7.5 7.8 10 5.84 9 11.8 11.37 7 10.51 10 7.97 RN B14 MW-8A/B RN B4 12 8.04 1 9.37 1 12.46 11.85 1 8.94 13 7.86 2.5 8.98 2.5 9.27

2.5 9.24 15 7.79 5 9.37 5 8.89 5 9.95 9.32 RN B9 7 9.47 7.5 8.2 6 6.81 1 8.57 9 7.23 10 9.02

7.5 7.82 2.5 10.57 10.79 RN B15 15 9.03 10 7.93 5 9.57 10.02 No samples returned 20 8.12 RN B5 7.5 8.2 1 10.31 10 8.31 Note: Red indicates pH at or above 9 pH units 2 11.28 12.5 7.46 3 - 8.65 15 8.15

Approximate crushed concrete layer depth

Borehole with elevated soil pHreadings (>9.0)

Borehole with normal soil pH(6.0 to 9.0)

Well ID / Borehole IDRNB9

N

120’0’

7’

Legend:

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

Water pH Measurements and the Crushed Concrete Layer Site MapTacoma Public Utilities:Steam Plant pH Investigation

Figure 6

1’1’

3’

3’

5’

5’

7’

?

?

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5RNB15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Substation

Asphalt

AsphaltBench

StormwaterDepression

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

P3

Shoreline

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos Waterway

6.26 (shallow)

6.88

N/A

N/A

7.14

8.058.14

7.31 (shallow)

7.19

7.13

6.89

N/A

N/A

N/A

6.05

8.38

10.18

7.01

6.07

6.77

6.92

6.88 (deep)

7.13 (deep)no water sample (shallow)

7.95 (deep)

6.05 Normal water pH reading (6.0 to 8.0)

Elevated pH reading (>8.0)

No pH measurement

Well Location

Borehole Location

Well/Borehole ID

Approximate crushed concrete layer depth

Approximate pH Plume Boundary

10.18

N/A

RNB6

N

120’0’

7’Approximate pH Plume Boundary

Legend:

1’1’

3’

3’

5’

5’

7’

?

?

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

Summary of Analytical Results of Metals in SoilsTacoma Public Utilities: Steam Plant pH Investigation

Figure 10

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5

RNB15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Substation

Asphalt

AsphaltBench

StormwaterDepression

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

P3

Shoreline

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos WaterwayRNB1-8’

PbCuAsHg

<5.010<5.0<0.5

RNB2-7’

PbCuAsHg

<5.0<5.0<5.0<0.5

RNB3-2’PbCuAsHg

62297.1<0.5

RNB3-5’

PbCuAsHg

225154

<0.522

RNB4-9’PbCuAsHg

1588.0<5.0<0.5

RNB5-3’

PbCuAsHg

77235

<0.533

RNB6-1’

PbCuAsHg

51347.0<0.5 RNB7-2.5’

PbCuAsHg

201277.9<0.5

RNB6-7’

PbCuAsHg

<5.01211<0.5 RNB7-10’

PbCuAsHg

51147.1<0.5

RNB8-10’

PbCuAsHg

<5.0157.8<0.5

RNB9-2.5’

PbCuAsHg

35525.6<0.5

RNB9-10’

PbCuAsHg

587.46.1<0.5

RNB8-13’

PbCuAsHg

<5.0266.1<0.5

RNB10-9’

PbCuAsHg

30116.6<0.5

RNB11-5’PbCuAsHg

352011<0.5

MW-6A/B-10’

PbCuAsHg

<5.0<5.0<5.0<0.5

MW-8A/B-1’

PbCuAsHg

49139.9<0.5

MW-7A/B-1’

PbCuAsHg

6824<5.0<0.5

MW-7A/B-5’

PbCuAsHg

7432<5.0<0.5

MW-7A/B-9’

PbCuAsHg

1132919<0.5

MW-8A/B-10’

PbCuAsHg

2103811<0.5

RNB13-2.5’

PbCuAsHg

30352<5.0<0.5

RNB14-7’

PbCuAsHg

12928<5.0<0.5

Pb - Lead

Cu - Copper

As - Arsenic

Hg - Mercury

MTCA Method A - 1,000 mg/kg

MTCA Method B - 3,200 mg/kg

MTCA Method A - 20 mg/kg

MTCA Method A - 2 mg/kg

Respective Cleanup Levelfor Industrial Properties

Analyte

Red text indicates sample is aboveapplicable cleanup level

Note: All soil samples were reported below detection limits for Cadmium (1.0 mg/kg) and Chromium (5.0 mg/kg)

Method A Cleanup Levels for Industrial PropertiesCadmium (2 mg/kg) and Chromium (19 / 2,000 mg/kg) N

120’0’

7’Approximate crushedconcrete layer depth

Well Location

Borehole Location

Well/Borehole IDRNB6

MW-7A/B-15’

PbCuAsHg

<5.0<5.0<5.0<0.5

Legend:

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

Summary of Analytical Results of Total Metals in Groundwater Tacoma Public Utilities: Steam Plant pH Investigation

Figure 11

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5B15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Substation

Asphalt

AsphaltBench

StormwaterDepressions

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

P3

Shoreline

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos Waterway

1’1’

3’

3’

5’

5’

7’

?

?

RNB1-SW

PbCuAsHgCdCr

<0.54.03.8<0.10.40.8

Pb - Lead

Cu - Copper

As - Arsenic

Hg - Mercury

Cd - Cadmium

Cr - Chromium

MTCA Method A - 15 ug/L

MTCA Method B - 640 ug/L

MTCA Method A - 5 ug/L

MTCA Method A - 2 ug/L

MTCA Method A - 5 ug/L

MTCA Method A - 50 ug/L

Respective Cleanup Levelfor Industrial Properties

Analyte

Red text indicates sample is aboveapplicable cleanup level

RNB1-DW

PbCuAsHgCdCr

1.69.70.9<0.1<0.210.6RNB2-SW

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.20.9

RNB4-SW

PbCuAsHgCdCr

<0.52.21.0<0.1<0.21.0

RNB6-SW

PbCuAsHgCdCr

6.222.74.4<0.1<0.221.2

RNB7-SW

PbCuAsHgCdCr

2.413.10.8<0.1<0.25.9

RNB8-SW

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.24.8

RNB8-DW

PbCuAsHgCdCr

<0.51.40.7<0.1<0.21.8

RNB9-DW

PbCuAsHgCdCr

3.88.31.5<0.1<0.226.6

RNB10-SW

PbCuAsHgCdCr

<0.52.00.6<0.1<0.22.2

RNB11-SW

PbCuAsHgCdCr

1.94.6

<0.1<0.27.8

23.5

MW-7A

PbCuAsHgCdCr

<0.5<0.50.90.2<0.22.4

MW-7B

PbCuAsHgCdCr

21.5

8.214.8

0.50.35.3

MW-6A

PbCuAsHgCdCr

<0.5<0.54.6<0.1<0.21.1

MW-6B

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.2<0.5

MW-8A

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.20.9

B8-SW’

PbCuAsHgCdCr

<0.5<0.5

<0.1<0.2<0.5

28.6

MW-8B

PbCuAsHgCdCr

<0.53.33.30.7<0.20.7

Dof-2

PbCuAsHgCdCr

1.3175

<0.1<0.216.9

27.7

Dof-1

N

120’0’

7’Approximate crushed concrete layer depth

Well Location

Borehole Location

Well/Borehole IDRNB6

Legend:

Notes:Shallow Groundwater samplesRNB1-SW, RNB2-SW, RNB4-SW, RNB6-SW, RNB7-SW, RNB8-SW, RNB10-SW, RNB11-SW,MW-6B, MW-7B, MW-8B,Dof-A, and Dof-2

Deep Groundwater samplesRNB1-DW, RNB8-DW, RNB9-DW,MW-6A, MW-7A, and MW-8A

Pierce County

T 21 N/R 03 E - 26

Scale 1” = 120’

PM: RAB

January 2012

1922-046F

Summary of Analytical Results of Dissolved Metals in GroundwaterTacoma Public Utilities: Steam Plant pH Investigation

Figure 12

1’1’

3’

3’

5’

5’

7’

?

?

East 1

1th

Street

Taylor Way

RNB1

RNB2

RNB4

RNB5RNB15

RNB14

RNB13

RNB3

RNB6

MW-6AMW-6B

MW-7A

MW-7B

MW-8AMW-8B

RNB7

RNB8

Bulkhead

Substation

Asphalt

AsphaltBench

StormwaterDepressions

StormwaterDepression

WellHouse

RNB9

RNB10

RNB11

P3

Shoreline

DOF-2

DOF-1

TowerMW-7B

MW-7A

11th

Stree

t Dra

wbrid

ge

Hylebos WaterwayRNB1-SW

PbCuAsHgCdCr

<0.54.02.5<0.10.40.6

Pb - Lead

Cu - Copper

As - Arsenic

Hg - Mercury

Cd - Cadmium

Cr - Chromium

MTCA Method A - 15 ug/L

MTCA Method B - 640 ug/L

MTCA Method A - 5 ug/L

MTCA Method A - 2 ug/L

MTCA Method A - 5 ug/L

MTCA Method A - 50 ug/L

Respective Cleanup Levelfor Industrial Properties

Analyte

Red text indicates sample is aboveapplicable cleanup level

RNB1-DW

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.2<0.5RNB2-SW

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.2<0.5

RNB4-SW

PbCuAsHgCdCr

<0.51.50.6<0.1<0.2<0.5

RNB6-SW

PbCuAsHgCdCr

<0.5<0.50.6<0.1<0.2<0.5

RNB7-SW

PbCuAsHgCdCr

<0.52.0<0.5<0.1<0.21.2

RNB8-SW

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.24.3

RNB8-DW

PbCuAsHgCdCr

<0.51.2<0.5<0.1<0.2<0.5

RNB9-DW

PbCuAsHgCdCr

<0.5<0.50.5<0.1<0.21.1

RNB10-SW

PbCuAsHgCdCr

<0.5<0.5<0.5<0.1<0.20.8

RNB11-SW

PbCuAsHgCdCr

<0.54.7

<0.1<0.23.8

18.7

N

120’0’

Notes:Shallow Groundwater samplesRNB1-SW, RNB2-SW, RNB4-SW, RNB6-SW, RNB7-SW, RNB8-SW, RNB10-SW, RNB11-SW,MW-6B, MW-7B, MW-8B,Dof-A, and Dof-2

Deep Groundwater samplesRNB1-DW, RNB8-DW, RNB9-DW,MW-6A, MW-7A, and MW-8A

7’Approximate crushed concrete layer depth

Well Location

Borehole Location

Well/Borehole IDRNB6

Legend:

 

 

 

 

 

 

 

 

APPENDIX A  

 

APPENDIX B

APPENDIX C

TABLE 1 - Soil and Groundwater Sampling Parameters POT Steam Plant Site

Tacoma, Washington

Probe and

Well

Samples

Method1

Lower Reporting

Limit2

(mg/kg)

Probe

Samples

Well

Samples Method

1Lower Reporting

Limit2

(ug/L)

Field Measurements

pH -- -- -- X X Probe --

Temperature -- -- -- X X Probe --

Specific Conductance -- -- -- X X Probe --

Turbidity -- -- -- X X Probe --

ORP -- -- -- X X Probe * --

Dissolved Oxygen -- -- -- X X Probe --

Ferrous Iron -- -- -- X X Hach kit --

Lab Analyses

Metals

Arsenic X Method 6010B 5.0 X X Method 200.8 3

0.5

Cadmium X Method 6010B 0.2 X X Method 200.8 3

0.2

Chromium X Method 6010B 0.5 X X Method 200.8 3

0.5

Copper X Method 6010B 0.2 X X Method 200.8 3

0.5

Lead X Method 6010B 2 X X Method 200.8 3 1

Mercury X Method 7471A 0.1 X X Method 7470A 0.02

PCBs (as Aroclors) -- -- -- -- X Method 8082 0.01

Iron (dissolved) -- -- -- -- X Method 6010B 50

Sulfate and total Sulfides -- -- -- -- X 300.0 & 376.2 100 / 50

Manganese (dissolved) -- -- -- -- X Method 6010B 1

Calcium & Magnesium (Hardness) -- -- -- -- X M.6010B / SM 2340B 50

pH X 9045D 0.05 SU (prec.) -- -- 9040C 0.05 SU (prec.)

Alkalinity -- -- -- -- X SM.2320 1000

Chloride -- -- -- -- X 300.0 100

DOC -- -- -- -- X 415.1/9060 1500

1 Unless otherwise noted, methods are EPA Methods specified in EPA reference publication SW-846

2 These are generally achievable lower reporting limits.

3

* Calibrate and record for known ion pairs (reference electrode employed shall be reported with data, such as Ag/AgCl, calomel, etc.)

to allow determination of Eh

Reporting limits may be greater due to dilutions (i.e., x10) to address matrix interference in samples with high dissolved solids. Interference and

Soil Groundwater

Sample Measurement

Parameters

TPU Sample grid.xlsx Page 1 of 1