Appendix D D1

Appendix D. Plots of Trend Analyses for Selected Constituents from Selected 

Sites, 1989–2012

Additional explanation for all graphs in appendix D

 Represents percentile limits defining the confidence band of the regression model

 Concentration

 

 Concentration range less than the reporting level
D2 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CPP 1 (433433112560201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22 24

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

7.5 8 .0 8.5 9 .0 9.5 10. 0

Regression, p = 0.264

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 22 24 26 28 30

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.7 0 .8 0.9 1 .0 1.1 1 .2 1.3

Regression, p = 0.002

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D3

CPP 1 (433433112560201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.020 0.030

Regression, p = 0.134

Fluoride, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.10 0.15 0.20 0.25 0.30

Regression, p = 0.069

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.036

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

01234 5

Regression, p = 0.832

Orthophosphate as P, in milligrams per liter
D4 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CPP 2 (433432112560801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

7.0 7 .5 8.0 8 .5 9.0

Regression, p = 0.382

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.6 0 .8 1.0 1 .2 1.4 1 .6

Regression, p = 0.002

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D5

CPP 2 (433432112560801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.01 0.03 0.05 0.07

Regression, p = 0.004

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.075

Orthophosphate as P, in milligrams per liter
D6 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RIFLE RANGE (433243112591101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4 1 6 1 8

Regression, p = 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 31 32 33

Regression, p = 0.011

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D7

USGS 20 (433253112545901)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

7.5 8.0 8 .5 9.0 9 .5 10. 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

17 18 19 20 21 22 23

Regression, p = 0.978

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.4 0 .6 0.8 1 .0 1.2 1 .4 1.6

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D8 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 20 (433253112545901)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020

Regression, p = 0.010

Orthophosphate as P, in milligrams per liter
Appendix D D9

USGS 34 (433334112565501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

6 8 10 12 14 16

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40 45

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.4 0 .6 0.8 1 .0 1.2 1 .4 1.6

Regression, p = 0.196

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D10 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 34 (433334112565501)

Fluoride, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.18 0.22 0.26 0.30

Regression, p = 0.329

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p < 0.001

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0

Regression, p = 0.002

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5

Regression, p = 0.328

Orthophosphate as P, in milligrams per liter
Appendix D D11

USGS 35 (433339112565801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0 3 5

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

6 8 10 12 14 16 18

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40 45 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.5 1 .0 1.5 2 .0 2.5

Regression, p = 0.004

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D12 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 35 (433339112565801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.020 0.025 0.030

Regression, p = 0.942

Orthophosphate as P, in milligrams per liter
Appendix D D13

USGS 36 (433330112565201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 40 60 80

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40 45

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.5 1 .0 1.5 2 .0 2.5 3 .0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D14 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 36 (433330112565201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04

Regression, p = 0.681

Orthophosphate as P, in milligrams per liter
Appendix D D15

USGS 37 (433326112564801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 35 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .5 2.0 2 .5 3.0 3 .5

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D16 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 37 (433326112564801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.05 0.10 0.15

Regression, p = 0.127

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.05 0.10 0.15 0.20 0.25

Regression, p = 0.394

Orthophosphate as P, in milligrams per liter Ammonia, in milligrams per liter
Appendix D D17

USGS 38 (433322112564301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 3 5

Regression, p = 0.024

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0123 4

Regression, p = 0.020

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D18 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 38 (433322112564301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.10 0.15 0.20 0.25 0.30

Regression, p = 0.032

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p = 0.013

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0

Regression, p = 0.940

Fluoride, in milligrams per liter Orthophosphate as P, in milligrams per liter Chromium, in micrograms per liter Total Organic Carbon, in milligrams per liter
Appendix D D19

USGS 39 (433343112570001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0

Regression, p = 0.128

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

6.5 7 .0 7.5 8 .0 8.5 9 .0 9.5

Regression, p = 0.026

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40 45 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.6 0 .7 0.8 0 .9 1.0 1 .1

Regression, p = 0.104

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D20 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 39 (433343112570001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.015 0.020 0.025 0.030

Regression, p = 0.614

Orthophosphate as P, in milligrams per liter
Appendix D D21

USGS 40 (433411112561101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25 30 35 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4 1 6 1 8 2 0

Regression, p = 0.221

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

23 24 25 26 27 28 29

Regression, p = 0.020

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2468 10 12

Regression, p = 0.393

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D22 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 40 (433411112561101)

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.927

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.917

Orthophosphate as P, in milligrams per liter
Appendix D D23

USGS 41 (433409112561301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25 30 35

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 9 10 11 12 13 14

Regression, p = 0.972

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 24 26 28 30

Regression, p = 0.003

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

123456 7

Regression, p = 0.951

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D24 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 41 (433409112561301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.04 0.08 0.12

Regression, p = 0.513

Orthophosphate as P, in milligrams per liter
Appendix D D25

USGS 42 (433404112561301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25 30 35

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 9 10 11 12 13 14

Regression, p = 0.846

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 23 24 25 26 27

Regression, p = 0.005

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .5 2.0 2 .5 3.0 3 .5 4.0

Regression, p = 0.950

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D26 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 42 (433404112561301)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.020 0.030 0.040

Regression, p = 0.010

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.261
Appendix D D27

USGS 43 (433415112561501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25 30 35

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20

Regression, p = 0.866

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

21 22 23 24 25 26

Regression, p = 0.054

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20 25

Regression, p = 0.254

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D28 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 43 (433415112561501)

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.169

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p = 0.065

Orthophosphate as P, in milligrams per liter
Appendix D D29

USGS 44 (433409112562101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

7.0 7.5 8.0 8 .5 9.0 9 .5

Regression, p = 0.005

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 21 22 23 24 25

Regression, p = 0.094

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.7 0.8 0 .9 1.0 1 .1 1.2

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D30 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 44 (433409112562101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.01 0.02 0.03 0.04 0.05 0.06

Regression, p = 0.135

Orthophosphate as P, in milligrams per liter
Appendix D D31

USGS 45 (433402112561801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22 24

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 9 10 11 12 13

Regression, p = 0.077

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 21 22 23 24 25 26

Regression, p = 0.025

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .2 1.4 1 .6

Regression, p = 0.174

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D32 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 45 (433402112561801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.015 0.020 0.025 0.030

Regression, p = 0.032

Orthophosphate as P, in milligrams per liter
Appendix D D33

USGS 46 (433407112561501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4

Regression, p = 0.045

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

21 22 23 24 25 26 27

Regression, p = 0.022

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12345 6

Regression, p = 0.002

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D34 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 46 (433407112561501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.015 0.025 0.035

Regression, p = 0.150

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.174

Orthophosphate as P, in milligrams per liter
Appendix D D35

USGS 47 (433407112560301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5

Regression, p = 0.004

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 24 26 28 30 32

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0246 8 1 0 1 2

Regression, p = 0.414

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D36 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 47 (433407112560301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.032

Orthophosphate as P, in milligrams per liter
Appendix D D37

USGS 48 (433401112560301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20

Regression, p = 0.059

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 24 26 28

Regression, p = 0.005

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

012345 6

Regression, p = 0.304

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D38 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 48 (433401112560301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04

Regression, p = 0.132

Orthophosphate as P, in milligrams per liter
Appendix D D39

USGS 51 (433350112560601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 150 200

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 30 40 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

24 26 28 30

Regression, p = 0.008

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2.0 2 .5 3.0 3 .5 4.0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D40 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 51 (433350112560601)

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06 0.08 0.10

Regression, p = 0.007

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p < 0.001

Orthophosphate as P, in milligrams per liter
Appendix D D41

USGS 52 (433414112554201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20

Regression, p = 0.074

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

23 24 25 26 27 28

Regression, p = 0.098

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.5 2 .0 2.5 3 .0 3.5 4 .0 4.5

Regression, p = 0.445

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D42 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 52 (433414112554201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p = 0.026

Orthophosphate as P, in milligrams per liter
Appendix D D43

USGS 57 (433344112562601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 40 60 80

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 3 5

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.5 2 .0 2.5 3 .0 3.5 4.0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D44 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 57 (433344112562601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.05 0.10 0.15 0.20

Regression, p = 0.653

Orthophosphate as P, in milligrams per liter
Appendix D D45

USGS 59 (433354112554701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 250

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 24 26 28 30 3 2

Regression, p = 0.010

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.002

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D46 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 59 (433354112554701)

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04

Regression, p = 0.003

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p = 0.006

Orthophosphate as P, in milligrams per liter
Appendix D D47

USGS 67 (433344112554101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 30 40 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

27 28 29 30 31 32

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

345 6

Regression, p = 0.011

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D48 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 67 (433344112554101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.167

Orthophosphate as P, in milligrams per liter
Appendix D D49

USGS 77 (433315112560301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

60 80 100 140 180

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

35 40 45

Regression, p = 0.283

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

27 28 29 30 31 32 33

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2.0 2 .5 3.0 3 .5 4.0 4 .5 5.0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D50 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 77 (433315112560301)

Fluoride, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.16 0.20 0.24 0.28

Regression, p = 0.001

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.003

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20

Regression, p = 0.001

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5

Regression, p = 0.499
Appendix D D51

USGS 82 (433401112551001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25

Regression, p = 0.004

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10.0 10.5 11.0 11.5 12. 0

Regression, p = 0.015

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20.0 21.0 22. 0 2 3.0

Regression, p = 0.687

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.50 0.60 0.70 0.80

Regression, p = 0.016

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D52 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 82 (433401112551001)

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.164

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06 0.08

Regression, p = 0.538

Orthophosphate as P, in milligrams per liter
Appendix D D53

USGS 84 (433356112574201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

4 6 8 1 0 1 2 1 4 1 6

Regression, p = 0.505

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

789 10

Regression, p = 0.559

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40

Regression, p = 0.891

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.6 0 .7 0.8 0 .9 1.0 1 .1

Regression, p = 0.095

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D54 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 84 (433356112574201)

Aluminum, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2 468 10

Regression, p = 0.212

Molybdenum, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .5 2.0

Regression, p = 0.535

Barium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

70 75 80 85 90 95 100

Regression, p = 0.586

Uranium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .2 1.4 1 .6 1.8 2 .0

Regression, p = 0.318
Appendix D D55

USGS 84 (433356112574201)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p < 0.001

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.881

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0

Regression, p = 0.410

Nickel, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0123 4

Regression, p = 0.021
D56 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 84 (433356112574201)

Lead, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20

Regression, p < 0.001

Copper, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5

Regression, p < 0.001

Cobalt, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p = 0.015

Cadmium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p < 0.001
Appendix D D57

USGS 84 (433356112574201)

Arsenic, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.024

Antimony, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p = 0.689

Manganese, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p = 0.771

Selenium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.068
D58 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 84 (433356112574201)

Zinc, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 100 200 300 400 500

Regression, p < 0.001
Appendix D D59

USGS 85 (433246112571201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 40 60 80

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 35 40 45

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .5 2.0 2 .5 3.0 3 .5

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D60 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 85 (433246112571201)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p = 0.013
Appendix D D61

USGS 111 (433331112560501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200

Regression, p = 0.623

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

26 28 30 32 34 36 38

Regression, p = 0.013

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2.0 2 .5 3.0 3 .5 4.0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D62 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 111 (433331112560501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020

Regression, p = 0.024

Orthophosphate as P, in milligrams per liter
Appendix D D63

USGS 112 (433314112563001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 40 60 80

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 3 5 4 0

Regression, p = 0.005

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

123 4

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D64 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 112 (433314112563001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.020 0.030

Regression, p < 0.001

Orthophosphate as P, in milligrams per liter
Appendix D D65

USGS 113 (433314112561801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 250

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 40 60 80 100

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 3 5 4 0 4 5

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04

Regression, p = 0.003

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Orthophosphate as P, in milligrams per liter
D66 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 113 (433314112561801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

012345 6

Regression, p = 0.638

Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D67

USGS 114 (433318112555001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

60 70 80 90 100 110

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

19 20 21 22 23 24

Regression, p = 0.173

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 26 27 28 29

Regression, p = 0.177

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2.5 3 .0 3.5 4 .0 4.5

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D68 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 114 (433318112555001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020

Regression, p = 0.604

Orthophosphate as P, in milligrams per liter
Appendix D D69

USGS 115 (433320112554101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 35 40 45 50 55

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4 1 6 1 8 2 0

Regression, p = 0.065

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 22 24 26

Regression, p = 0.046

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .2 1.4 1 .6

Regression, p = 0.448

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D70 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 115 (433320112554101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020

Regression, p = 0.542

Orthophosphate as P, in milligrams per liter
Appendix D D71

USGS 116 (433331112553201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100

Regression, p = 0.005

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

24 26 28 30 32 34 36

Regression, p = 0.060

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 32 34 36 38

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2.0 2 .2 2.4 2 .6 2.8 3 .0 3.2

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D72 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 116 (433331112553201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p = 0.191

Orthophosphate as P, in milligrams per liter
Appendix D D73

USGS 123 (433352112561401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0 4 0 5 0 6 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 22 24 26 28 30 32

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

012345 6

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D74 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 123 (433352112561401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6

Regression, p = 0.428

Orthophosphate as P, in milligrams per liter
Appendix D D75

USGS 128 (433250112565601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50 60

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .2 1.4 1 .6 1.8 2 .0 2.2

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.020 0.025 0.030

Regression, p < 0.001

Chloride, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
D76 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

MTR TEST (433520112572601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 15 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.9 1 .0 1.1 1 .2 1.3 1 .4

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D77

MTR TEST (433520112572601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p < 0.001

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20 25 30

Regression, p = 0.252

Orthophosphate as P, in milligrams per liter
D78 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

TRA Disposal (433506112572301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

6 8 10 12 14 16

Regression, p = 0.517

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

9.5 10.0 10.5 11.0 11.5 12. 0

Regression, p = 0.021

Sulfate, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 35 40 45

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.95 1.00 1.05 1.10 1.15 1.20

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D79

TRA Disposal (433506112572301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.02 0.04 0.06 0.08

Regression, p = 0.989

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5

Regression, p = 0.484

Orthophosphate as P, in milligrams per liter
D80 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 58 (433500112572502)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 11 12 13

Regression, p = 0.451

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8.5 9 .0 9.5 10.5 11. 5

Regression, p = 0.016

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

26 28 30 32 34 36

Regression, p = 0.003

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5

Regression, p = 0.331

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D81

USGS 65 (433447112574501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22 24

Regression, p = 0.326

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

11 12 13 14 15 16 17

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

140 150 160 17 0

Regression, p = 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.2 1 .3 1.4 1 .5 1.6 1 .7 1.8

Regression, p = 0.258

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D82 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 65 (433447112574501)

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 150 200

Regression, p < 0.001

Barium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

44 46 48 50 52 54 56

Regression, p < 0.001

Uranium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.5 2 .0 2.5 3 .0 3.5

Regression, p < 0.001

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06 0.08

Regression, p = 0.001
Appendix D D83

USGS 65 (433447112574501)

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0

Regression, p = 0.511

Nickel, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2468 10

Regression, p = 0.474

Molybdenum, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

02468 10

Regression, p < 0.001

Lead, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

02468 10

Regression, p < 0.001
D84 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 65 (433447112574501)

Copper, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2468 10

Regression, p = 0.053

Cobalt, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.008

Cadmium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p < 0.001

Arsenic, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0

Regression, p < 0.001
Appendix D D85

USGS 65 (433447112574501)

Aluminum, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0246 8 1 0 1 2

Regression, p = 0.616

Antimony, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p = 0.820

Manganese, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.727

Selenium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5 3.0

Regression, p = 0.203
D86 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 65 (433447112574501)

Zinc, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 100 200 300 400 500

Regression, p < 0.001
Appendix D D87

USGS 76 (433425112573201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

9 1 0 1 1 1 2 1 3 1 4 1 5

Regression, p = 0.298

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

9.0 9 .5 10.0 10. 5

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

26 27 28 29 30 31 32

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .5 2.0

Regression, p = 0.845

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D88 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 76 (433425112573201)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06 0.08

Regression, p = 0.434

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20

Regression, p = 0.472
Appendix D D89

USGS 79 (433505112581901)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

7 8 9 1 0 1 1 1 2 1 3

Regression, p = 0.773

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 24 26 28 30

Regression, p = 0.068

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.284

Chromium, in micrograms per liter Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D90 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CFA 1 (433204112562001)

Chloride, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100

Regression, p = 0.324

Sodium, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30 35 40

Regression, p = 0.419

Sulfate, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

26 28 30 32 34 36 38

Regression, p = 0.007

Nitrate plus Nitrite as N, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

2.5 3.0 3.5 4.0 4.5

Regression, p < 0.001
Appendix D D91

CFA 1 (433204112562001)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p = 0.883

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20 25

Regression, p = 0.651
D92 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CFA 2 (433144112563501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

60 80 100 120 140 160

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25 30 35 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 35 40 45 50 55

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

3.0 3.5 4.0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D93

CFA 2 (433144112563501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p = 0.115

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20 25

Regression, p = 0.571

Orthophosphate as P, in milligrams per liter Chromium, in micrograms per liter
D94 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CFA LF 3−9 (433216112571001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 120 140 160

Regression, p = 0.032

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

3.0 3 .5 4.0

Regression, p = 0.001

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04

Regression, p = 0.518

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04

Regression, p = 0.082

Chloride, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
Appendix D D95

CFA LF 2−10 (433216112563301)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40

Regression, p = 0.433

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 11 12 13 14

Regression, p = 0.026

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.0 1 .2 1.4 1 .6 1.8 2 .0

Regression, p = 0.004

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20

Regression, p = 0.007

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D96 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CFA LF 2−10 (433216112563301)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.020 0.030

Regression, p = 0.074

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.089

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0

Regression, p = 0.368
Appendix D D97

USGS 127 (433058112572201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

13 14 15 16

Regression, p = 0.076

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8.0 8 .5 9.0

Regression, p = 0.015

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.52 0.54 0.56 0.58

Regression, p = 0.201

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 9 10 11 12 13

Regression, p = 0.039

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D98 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 127 (433058112572201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03

Regression, p = 0.001

Orthophosphate as P, in milligrams per liter
Appendix D D99

RWMC M3S (433008113021801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 13 14 15

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.65 0.7 5 0 .85 0 .95

Regression, p = 0.683

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.01 0.02 0.03 0.04

Regression, p = 0.637

Chloride, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
D100 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RWMC M7S (433023113014801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

11 12 13 14

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.55 0.60 0.65 0.7 0 0 .75 0 .80

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.01 0.02 0.03 0.04 0.05 0.06

Regression, p = 0.137

Chloride, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
Appendix D D101

RWMC M11S (433058113010401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30 35

Regression, p = 0.504

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10.5 11.5 12.5 13. 5

Regression, p = 0.816

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.40 0.45 0.50 0.55 0.60 0.65

Regression, p = 0.271

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
D102 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RWMC M11S (433058113010401)

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.519

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8

Regression, p < 0.001
Appendix D D103

RWMC M12S (433118112593401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

14.5 15.5 16.5 17. 5

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8.0 8 .5 9.0 9 .5 10. 5

Regression, p = 0.978

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.80 0.85 0.90 0.95 1.00

Regression, p = 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22

Regression, p = 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Chromium, in micrograms per liter
D104 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RWMC M12S (433118112593401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.020 0.030

Regression, p = 0.002

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1234

Regression, p = 0.016

Orthophosphate as P, in milligrams per liter
Appendix D D105

RWMC M13S (433037113002701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5.6 5 .8 6.0 6 .2 6.4 6 .6

Regression, p = 0.560

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

9.5 10.0 10.5 11.0 11.5 12. 0

Regression, p = 0.176

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.32 0.34 0.36 0.38 0.40 0.42

Regression, p = 0.151

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

789 10 11 12

Regression, p = 0.054

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Chromium, in micrograms per liter
D106 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RWMC M13S (433037113002701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06 0.08

Regression, p = 0.634

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0

Regression, p = 0.027

Orthophosphate as P, in milligrams per liter Total Organic Carbon, in milligrams per liter
Appendix D D107

RWMC M14S (433052113025001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

14.0 15.0 16.0 17. 0

Regression, p = 0.425

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8.5 9 .0 9.5

Regression, p = 0.701

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.85 0.90 0.95

Regression, p = 0.251

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20

Regression, p = 0.004

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D108 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RWMC M14S (433052113025001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.010 0.015 0.020 0.025 0.030

Regression, p = 0.001

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0

Regression, p = 0.022

Orthophosphate as P, in milligrams per liter
Appendix D D109

RWMC Production (433002113021701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

7.0 7 .5 8.0 8 .5 9.0 9 .5

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

24 25 26 27 28 29

Regression, p = 0.054

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .2 0.4 0 .6 0.8 1 .0

Regression, p = 0.653

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D110 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

RWMC Production (433002113021701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06 0.08

Regression, p < 0.001

Orthophosphate as P, in milligrams per liter
Appendix D D111

USGS 87 (433013113024201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30 35 40

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4 1 6 1 8 2 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

22 24 26 28

Regression, p = 0.546

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.4 0 .6 0.8 1 .0 1.2 1 .4 1.6

Regression, p = 0.007

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D112 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 87 (433013113024201)

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20

Regression, p < 0.001

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.05 0.10 0.15 0.20

Regression, p = 0.123

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0123

Regression, p = 0.150
Appendix D D113

USGS 88 (432940113030201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 40 60 80 100 120

Regression, p = 0.524

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

40 42 44 46 48

Regression, p = 0.050

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 30 4 0 5 0 6 0 7 0

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D114 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 88 (432940113030201)

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .1 0.2 0 .3 0.4

Regression, p = 0.075

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p = 0.712

Orthophosphate as P, in milligrams per liter
Appendix D D115

USGS 89 (433005113032801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50

Regression, p = 0.157

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22

Regression, p = 0.160

Nitrate plus Nitrite as N, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

1.6 1 .7 1.8 1 .9 2.0 2 .1

Regression, p = 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.02 0.04 0.06

Regression, p = 0.142

Chloride, in milligrams per liter Sodium, in milligrams per liter Orthophosphate as P, in milligrams per liter
D116 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 89 (433005113032801)

Sulfate, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0 4 0

Regression, p = 0.346
Appendix D D117

USGS 120 (432919113031501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 35 40 45 50 55

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.5 0 .6 0.7 0 .8 0.9 1 .0 1.1

Regression, p = 0.488

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
D118 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 120 (432919113031501)

Orthophosphate as P, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020 0.030

Regression, p = 0.064

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 123

Regression, p = 0.060

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.984
Appendix D D119

USGS 104 (432856112560801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8.0 8 .5 9.0

Regression, p = 0.013

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.65 0.70 0.75 0.80 0.85 0.90

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.059

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
D120 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 105 (432703113001801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20 22

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

11.5 12.0 12.5 13.0 13.5 14. 0

Regression, p = 0.016

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.55 0.60 0.65 0.70 0.75

Regression, p = 0.013

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.005 0.010 0.015 0.020

Regression, p = 0.218

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
Appendix D D121

USGS 105 (432703113001801)

Total Organic Carbon, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.0 0 .5 1.0 1 .5 2.0 2 .5

Regression, p = 0.088

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.248
D122 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 106 (432959112593101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 13 14 15 16 17 18

Regression, p = 0.126

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

6.5 7 .0 7.5 8 .0 8.5

Regression, p = 0.022

Chloride, in milligrams per liter Sodium, in milligrams per liter
Appendix D D123

USGS 108 (432659112582601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

14 16 18 20

Regression, p = 0.789

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10.0 10.5 11.0 11.5 12. 0

Regression, p = 0.380

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.6 0 .7 0.8 0 .9 1.0 1 .1

Regression, p = 0.719

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.005 0.010 0.015 0.020

Regression, p = 0.035

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
D124 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 108 (432659112582601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1234

Regression, p = 0.178

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.955

Total Organic Carbon, in milligrams per liter Chromium, in micrograms per liter
Appendix D D125

USGS 124 (432307112583101)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

13 14 15 16

Regression, p = 0.003

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8.5 9 .0 9.5 10.0 10. 5

Regression, p = 0.357

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.65 0.7 0 0 .75 0 .80 0 .85 0 .90

Regression, p = 0.010

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.000 0.010 0.020

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter Orthophosphate as P, in milligrams per liter
D126 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

PW 1 (433349112560701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 200 300 400

Regression, p < 0.001

Sodium, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 140 180 220

Regression, p = 0.087

Chloride, in milligrams per liter
Appendix D D127

PW 2 (433344112555601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 150 200 250 300 350

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 120 140 160 180 200

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 25 30 35 40 45

Regression, p = 0.548

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D128 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

PW 3 (433351112555701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

150 200 250 300 350

Regression, p = 0.003

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

120 140 160 180

Regression, p = 0.178

Chloride, in milligrams per liter Sodium, in milligrams per liter
Appendix D D129

PW 4 (433348112554901)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 200 300

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

80 100 140 180

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

20 30 40 50

Regression, p = 0.016

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D130 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

PW 5 (433348112555701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 150 200 250 300 350

Regression, p = 0.122

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

120 140 160 180

Regression, p = 0.055

Chloride, in milligrams per liter Sodium, in milligrams per liter
Appendix D D131

PW 6 (433353112562201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 500 1000 1500

Regression, p = 0.499

Chloride, in milligrams per liter
D132 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 50 (433419112560201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

30 40 50 60 70 80 90

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50 60 70

Regression, p = 0.083

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 35 40 45

Regression, p = 0.478

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0

Regression, p = 0.024

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter Nitrate plus Nitrite as N, in milligrams per liter
Appendix D D133

USGS 50 (433419112560201)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.04 0.08 0.12

Regression, p = 0.517

Ammonia, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0.00 0.01 0.02 0.03 0.04 0.05

Regression, p = 0.028

Orthophosphate as P, in milligrams per liter
D134 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CWP 1 (433459112572601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0 3 5

Regression, p = 0.783

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 100 200 300 400 500

Regression, p = 0.045

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.515

Chloride, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D135

CWP 2 (433458112572401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5

Regression, p = 0.180

Chloride, in milligrams per liter
D136 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CWP 3 (433455112572501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30

Regression, p = 0.400

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 100 200 300 400

Regression, p = 0.315

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p < 0.001

Chloride, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D137

CWP 4 (433454112572601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4 1 6 1 8 2 0

Regression, p = 0.028

Chloride, in milligrams per liter
D138 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

CWP 8 (433500112573001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p = 0.003

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 25 0

Regression, p < 0.001

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.078

Chloride, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D139

PW 8 (433456112572001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0

Regression, p = 0.089

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20

Regression, p = 0.420

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150 200 250 300

Regression, p = 0.049

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0 4 0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D140 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

PW 9 (433500112575401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40 50

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

19 20 21 22 23

Regression, p = 0.015

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

70 80 90 100 110 120

Regression, p = 0.003

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 250

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D141

TRA A 13 (433502112572802)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0 4 0 5 0 6 0

Regression, p = 0.041

Chloride, in milligrams per liter
D142 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

TRA A 77 (433507112573801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2468 10

Regression, p = 0.018

Chloride, in milligrams per liter
Appendix D D143

USGS 53 (433503112573401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0 3 5

Regression, p = 0.974

Sodium, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0 3 5

Regression, p = 0.154

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 100 300 500

Regression, p = 0.103

Chloride, in milligrams per liter
D144 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 54 (433503112572801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0

Regression, p = 0.208

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20 22

Regression, p = 0.256

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 100 200 300

Regression, p < 0.001

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D145

USGS 55 (433508112573001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30 35

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0 3 5

Regression, p = 0.157

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 250

Regression, p = 0.253

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100

Regression, p = 0.012

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D146 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 56 (433509112573501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5 1 0 1 5 2 0 2 5 3 0 3 5

Regression, p = 0.537

Sodium, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 250

Regression, p = 0.865

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200

Regression, p = 0.101

Chloride, in milligrams per liter
Appendix D D147

USGS 60 (433456112571901)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p = 0.126

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20

Regression, p = 0.857

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150 200 250 300

Regression, p = 0.031

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10 15 20 25

Regression, p = 0.017

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D148 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 61 (433453112571601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22 24

Regression, p = 0.387

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

11 12 13 14 15 16 17

Regression, p = 0.027

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 150 200

Regression, p = 0.240

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D149

USGS 62 (433446112570701)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25

Regression, p = 0.639

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 13 14 15 16 17 18

Regression, p = 0.374

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150 200 250 300

Regression, p = 0.188

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D150 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 63 (433455112574001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25

Regression, p = 0.642

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18

Regression, p = 0.589

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150 200 250 300

Regression, p = 0.002

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D151

USGS 66 (433436112564801)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

14 16 18 20 22 24

Regression, p = 0.476

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

14 15 16 17 18

Regression, p = 0.910

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

100 150 200

Regression, p = 0.914

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p = 0.069

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D152 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 68 (433516112573901)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0

Regression, p = 0.047

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 500 1000

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1000 3000 5000

Regression, p < 0.001

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D153

USGS 69 (433450112573001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 20 30 40

Regression, p = 0.063

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150

Regression, p < 0.001

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.082

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D154 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 70 (433504112571001)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 15 20 25 30 35

Regression, p = 0.010

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

10 12 14 16 18 20 22

Regression, p = 0.123

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

50 100 150 200 250

Regression, p = 0.053

Chromium, in micrograms per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 1 0 2 0 3 0 4 0 5 0 6 0

Regression, p < 0.001

Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D155

USGS 71 (433439112571501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

16 18 20 22

Regression, p = 0.746

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

8 1 0 1 2 1 4

Regression, p < 0.001

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

140 150 160 170 180 190

Regression, p = 0.065

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p < 0.001

Chromium, in micrograms per liter Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D156 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 72 (433519112574601)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p = 0.778

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

15 20 25 30 3 5

Regression, p = 0.905

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

25 30 3 5

Regression, p = 0.002

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p = 0.73 5

Chromium, in micrograms per liter Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D157

USGS 73 (433502112575401)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 0 100 150 200 250

Regression, p = 0.044

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22

Regression, p = 0.213

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

40 50 60 70 80 90

Regression, p = 0.391

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 2 0 4 0 6 0 8 0 100

Regression, p < 0.001

Chromium, in micrograms per liter Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
D158 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

USGS 78 (433413112573501)

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

3.0 3 .5 4.0 4 .5 5.0 5 .5 6.0

Regression, p = 0.122

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

5.0 5 .5 6.0 6 .5 7.0 7.5

Regression, p = 0.057

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

12 14 16 18 20 22

Regression, p = 0.492

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

0 5 10

Regression, p < 0.001

Chromium, in micrograms per liter Chloride, in milligrams per liter Sodium, in milligrams per liter Sulfate, in milligrams per liter
Appendix D D159

USGS 92 (433000113025301)

Chloride, in milligrams per liter

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

60 80 100 120 140 160

Regression, p = 0.273
D160 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1981–2012 

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