Appendix D D1

Appendix D. Theil-Sen slope line and p-values for selected constituents for 

uncensored data from selected sites. 12 14 16 18 20 22

1990 1995 2000 2005

Chloride, in milligrams per liter

ANP 6 (435152112443101)

Theil−Sen line

p−value = 0.037

9.5 10.0 10.5 11.0

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.045

31.5 32.5 33.5 34.5

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.020

0.70 0.80 0.90 1.00

1990 1995 2000 2005

Nitrate plus Nitrite as N, in milligrams per liter

Theil−Sen line

p−value = 0.234
D2 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.020 0.030

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

ANP 6 (435152112443101)

Theil−Sen line

p−value = 0.219
Appendix D D3

11.0 11.5 12.0 12.5 13.0 1994 1996 1998 2000 2002 2004 2006 2008

Chloride, in milligrams per liter

ANP 9 (434856112400001)

Theil−Sen line

p−value = 0.775

14.0 14.5 15.0 15.5 1994 1996 1998 2000 2002 2004 2006 2008

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.987

0.7 0.8 0.9 1.0 1.1 1.2

Nitrate plus Nitr

1994 1996 1998 2000 2002 2004 2006 2008

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.075

1.6 2.0 2.4 2.8

1994 1996 1998 2000 2002 2004 2006 2008

Arsenic, in micrograms per liter

Theil−Sen line

p−value = 0.538
D4 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 80 85 90

1994 1996 1998 2000 2002 2004 2006 2008

Barium, in micrograms per liter

ANP 9 (434856112400001)

Theil−Sen line

p−value = 0.244

5 10 15 1994 1996 1998 2000 2002 2004 2006 2008

Chromium, in micrograms per liter

Theil−Sen line

p−value = 0.000

2.6 2.7 2.8 2.9 3.0 1994 1996 1998 2000 2002 2004 2006 2008

Molybdenum, in micrograms per liter

Theil−Sen line

p−value = 0.002

2.0 2.1 2.2 2.3 2.4 2.5

1994 1996 1998 2000 2002 2004 2006 2008

Uranium, in micrograms per liter

Theil−Sen line

p−value = 0.000
Appendix D D5

0 10 20 30 40 50 60 1994 1996 1998 2000 2002 2004 2006 2008

Zinc, in micrograms per liter

ANP 9 (434856112400001)

Theil−Sen line

p−value = 0.010
D6 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 13 14 15 16 17 18

1990 1995 2000 2005

Chloride, in milligrams per liter

ARBOR TEST (433509112384801)

Theil−Sen line

p−value = 0.311
Appendix D D7

8 10 12 14 16 18

1995 2000 2005

Chloride, in milligrams per liter

AREA 2 (433223112470201)

Theil−Sen line

p−value = 0.200

10 12 14 16

1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.427

16 18 20 22 24 26 28

1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.007

0.6 0.8 1.0 1.2 1.4

Nitrate plus Nitr

1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.202
D8 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 14 16 18 20 22

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

ATOMIC CITY (432638112484101)

Theil−Sen line

p−value = 0.715

8 10 12 14 16 18 1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000
Appendix D D9

14 16 18 20 22

1985 1990 1995 2000 2005

Chloride, in milligrams per liter

BADGING FACILITY WELL (433042112535101)

Theil−Sen line

p−value = 0.571

8.0 8.5 9.0 9.5 10.5 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.339

20.0 20.5 21.0 21.5 22.0 1985 1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.252

0.60 0.65 0.70 0.75

Nitrate plus Nitrite

1985 1990 1995 2000 2005

 as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D10 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 15 20 25 30

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

CPP 4 (433440112554401)

Theil−Sen line

p−value = 0.469

6.0 6.5 7.0 7.5 8.0 8.5

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.010

1234 5

Nitrate plus Nitr

1980 1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.083
Appendix D D11

6 8 10 12 14 16 18

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

EBR 1 (433051113002601)

Theil−Sen line

p−value = 0.826

3456789

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.022

0.3 0.4 0.5 0.6 0.7 0.8 0.9

Nitrate plus Nitr

1980 1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.496
D12 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 15 20 25

1980 1985 1990 1995

Chloride, in milligrams per liter

FIRE STATION 2 (433548112562301)

Theil−Sen line

p−value = 0.344

6 789 10

1980 1985 1990 1995

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.087

0.8 1.0 1.2 1.4

Nitrate plus Nitr

1980 1985 1990 1995

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.047
Appendix D D13

4 6 8 10 12 1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

HIGHWAY 3 (433256113002501)

Theil−Sen line

p−value = 0.093

4.0 4.5 5.0 5.5 6.0 6.5

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.554

0.30 0.40 0.50

Nitrate plus Nitr

1980 1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.003
D14 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 16 18 20 22 24 26 28 30

1950 1960 1970 1980 1990 2000 2010

Chloride, in milligrams per liter

IET 1 DISP (435153112420501)

Theil−Sen line

p−value = 0.519

16 18 20 22

1950 1960 1970 1980 1990 2000 2010

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.624

0.0 0.5 1.0 1.5 2.0

Nitrate plus Nitr

1950 1960 1970 1980 1990 2000 2010

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.027

0.0 0.1 0.2 0.3 0.4 0.5

1950 1960 1970 1980 1990 2000 2010

Orthophosphate as P, in milligrams per liter

Theil−Sen line

p−value = 0.000
Appendix D D15

0.0 0.5 1.0 1.5 2.0 2.5

1950 1960 1970 1980 1990 2000 2010

Ammonia, in milligrams per liter

IET 1 DISP (435153112420501)

Theil−Sen line

p−value = 0.000

10 20 30 40 50 60

1950 1960 1970 1980 1990 2000 2010

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.060
D16 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 16 17 18 19 20

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

LEO ROGERS 1 (432533112504901)

Theil−Sen line

p−value = 0.324

14 16 18 20 22

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.728
Appendix D D17

18 19 20 21 22 23

1990 1995 2000 2005

Chloride, in milligrams per liter

NO NAME 1 (435038112453401)

Theil−Sen line

p−value = 0.240

9.5 10.0 10.5 11.0 11.5 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.633

0.55 0.60 0.65 0.70 0.75 0.80

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.110

1.4 1.6 1.8 2.0 2.2 2.4

1990 1995 2000 2005

Arsenic, in micrograms per liter

Theil−Sen line

p−value = 0.165
D18 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 62 64 66 68 70 72

1990 1995 2000 2005

Barium, in micrograms per liter

NO NAME 1 (435038112453401)

Theil−Sen line

p−value = 0.095

7 8 9 10 11 12 13 1990 1995 2000 2005

Chromium, in micrograms per liter

Theil−Sen line

p−value = 0.005

1.5 1.6 1.7 1.8 1.9 2.0

1990 1995 2000 2005

Uranium, in micrograms per liter

Theil−Sen line

p−value = 0.030
Appendix D D19

NPR TEST (433449112523101)

10 15 20

1990 1995 2000 2005

Chloride, in milligrams per liter

Theil−Sen line

p−value = 0.000

7.0 7.5 8.0 8.5

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.4 0.6 0.8 1.0 1.2 1.4

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D20 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 10 20 30 40 50 60

1990 1995 2000 2005

Chloride, in milligrams per liter

P AND W 2 (435419112453101)

Theil−Sen line

p−value = 0.327

7.0 7.5 8.0

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.902

0.3 0.4 0.5 0.6 0.7 0.8 0.9

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.154
Appendix D D21

6.0 6.5 7.0 7.5 8.0 8.5 9.0

1995 2000 2005

Chloride, in milligrams per liter

PSTF TEST (434941112454201)

Theil−Sen line

p−value = 0.314

6.0 6.5 7.0 7.5

1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.871

0.2 0.3 0.4 0.5 0.6 0.7 0.8

Nitrate plus Nitr

1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.471

62 64 66 68 70

1995 2000 2005

Barium, in micrograms per liter

Theil−Sen line

p−value = 0.078
D22 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 1.6 1.7 1.8 1.9 2.0

1995 2000 2005

Molybdenum, in micrograms per liter

PSTF TEST (434941112454201)

Theil−Sen line

p−value = 0.000

1.0 1.2 1.4 1.6 1.8 2.0

1995 2000 2005

Uranium, in micrograms per liter

Theil−Sen line

p−value = 0.245
Appendix D D23

0 5 10 15 20 25

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

SITE 4 (433617112542001)

Theil−Sen line

p−value = 0.000

789 10 11

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

20 22 24 26 28

1980 1985 1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.651
D24 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 12 13 14 15 16

1995 2000 2005

Chloride, in milligrams per liter

SITE 9 (433123112530101)

Theil−Sen line

p−value = 0.139

12.0 12.5 13.0

1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

21 22 23 24 25

1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.6 0.7 0.8 0.9

Nitrate plus Nitr

1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
Appendix D D25

8.0 8.5 9.0 9.5 10.0

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

SITE 14 (434334112463101)

Theil−Sen line

p−value = 0.534

12 13 14 15 16

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.125

0.52 0.54 0.56 0.58 0.60

Nitrate plus Nitr

1980 1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.060
D26 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 10 11 12 13 14 15

1990 1995 2000 2005

Chloride, in milligrams per liter

SITE 17 (434027112575701)

Theil−Sen line

p−value = 0.189

10.0 10.5 11.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.723

16 17 18 19 20 21 22

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.050

0.90 1.00 1.10 1.20

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.073
Appendix D D27

10 11 12 13 14 15 16

1990 1995 2000 2005

Chloride, in milligrams per liter

SITE 19 (433522112582101)

Theil−Sen line

p−value = 0.002

7.0 7.5 8.0 8.5 9.0 9.5

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.359

20 25 30 35

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.788
D28 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 15 20 25 30 35 40 45

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

SPERT 1 (433252112520301)

Theil−Sen line

p−value = 0.003

10 15 20

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.002

0.2 0.4 0.6 0.8 1.0 1.2 1.4

Nitrate plus Nitr

1980 1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
Appendix D D29

8 9 10 11 12 13 14 15

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

TRA 1 (433521112573801)

Theil−Sen line

p−value = 0.012

6.0 7.0 8.0 9.0

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

17 18 19 20 21 22 23 24

1980 1985 1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.030
D30 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 10 12 14 16

1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

TRA 3 (433522112573501)

Theil−Sen line

p−value = 0.012

56789 10 11

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.035

18 20 22 24

1980 1985 1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.968
Appendix D D31

9 10 11 12 13 14 15 1980 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

TRA 4 (433521112574201)

Theil−Sen line

p−value = 0.000

5678

1980 1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

17 18 19 20 21 22

1980 1985 1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.040
D32 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 11.0 12.0 13.0 14.0 1990 1995 2000 2005 Chloride, in milligrams per liter

USGS 1 (432700112470801)

Theil−Sen line

p−value = 0.022

14.0 14.5 15.0 15.5 16.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.457

0.8 1.0 1.2 1.4 1.6

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.007

0.5 1.0 1.5 2.0

1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Theil−Sen line

p−value = 0.093
Appendix D D33

15.8 16.2 16.6 17.0 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 2 (433320112432301)

Theil−Sen line

p−value = 0.224

16.0 16.5 17.0 17.5 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.127

12 13 14 15 16 17

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

1.0 1.2 1.4 1.6

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D34 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 30 35 40 45 50

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 4 (434657112282201)

Theil−Sen line

p−value = 0.000

44 46 48 50

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.773

2.0 3.0 4.0 5.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.234

1 234

1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Theil−Sen line

p−value = 0.110
Appendix D D35

7.0 8.0 9.0 10.0 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 5 (433543112493801)

Theil−Sen line

p−value = 0.002

7.0 7.4 7.8 8.2

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.083

0.1 0.2 0.3 0.4 0.5

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.634
D36 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 6 8 10 12 14

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 6 (434031112453701)

Theil−Sen line

p−value = 0.027

12.5 13.0 13.5 14.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.457

17 18 19 20

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.230

0.40 0.50 0.60 0.70

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.053
Appendix D D37

8.5 9.5 10.5 11.5 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 7 (434915112443901)

Theil−Sen line

p−value = 0.820

22.0 23.0 24.0 25.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.940

0.30 0.35 0.40 0.45

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.085

2.0 2.5 3.0 3.5 4.0 1990 1995 2000 2005

Arsenic, in micrograms per liter

Theil−Sen line

p−value = 0.204
D38 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 15.0 16.0 17.0 18.0 1990 1995 2000 2005 Barium, in micrograms per liter

USGS 7 (434915112443901)

Theil−Sen line

p−value = 0.012

2.0 2.5 3.0 3.5 4.0 4.5 5.0 1990 1995 2000 2005

Manganese, in micrograms per liter

Theil−Sen line

p−value = 0.357

1.9 2.0 2.1 2.2 2.3 1990 1995 2000 2005

Uranium, in micrograms per liter

Theil−Sen line

p−value = 0.684
Appendix D D39

7 8 9 10 11 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 8 (433121113115801)

Theil−Sen line

p−value = 0.000

6.2 6.4 6.6 6.8 7.0 7.2

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.689

0.65 0.75 0.85 0.95

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.139
D40 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 10 15 20 25 30 35

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 9 (432740113044501)

Theil−Sen line

p−value = 0.000

8 10 12 14 16 18

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.5 1.0 1.5

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.653
Appendix D D41

8 10 12 14 16

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 11 (432336113064201)

Theil−Sen line

p−value = 0.000

8.0 8.5 9.0

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.6 0.8 1.0 1.2 1.4 1.6

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.105
D42 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 15 20 25 30 35 40

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 12 (434126112550701)

Theil−Sen line

p−value = 0.018

12 14 16 18

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.972

25 30 35

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.5 1.0 1.5 2.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.656
Appendix D D43

0.06 0.08 0.10 0.12 0.14

1990 1995 2000 2005

Bromide, in milligrams per liter

USGS 12 (434126112550701)

Theil−Sen line

p−value = 0.007
D44 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 18 19 20 21 22 23 24 25

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 14 (432019112563201)

Theil−Sen line

p−value = 0.554

12 13 14 15 16 17

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.781
Appendix D D45

10 20 30 40

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 15 (434234112551701)

Theil−Sen line

p−value = 0.119

10 15 20 25

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.755

15 20 25 30 35 40

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.112

0.5 1.0 1.5 2.0 2.5 3.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.013
D46 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.02 0.04 0.06 0.08

1990 1995 2000 2005

Bromide, in milligrams per liter

USGS 15 (434234112551701)

Theil−Sen line

p−value = 0.860
Appendix D D47

4.5 5.5 6.5 7.5

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 17 (433937112515401)

Theil−Sen line

p−value = 0.000

6.5 7.0 7.5

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.035

18 19 20 21 22

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.753

0.5 1.0 1.5 2.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.003
D48 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.10 0.15 0.20 0.25 0.30

1990 1995 2000 2005

Fluoride, in milligrams per liter

USGS 17 (433937112515401)

Theil−Sen line

p−value = 0.992
Appendix D D49

9.0 9.5 10.5 11.5 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 18 (434540112440901)

Theil−Sen line

p−value = 0.017

11.5 12.0 12.5 13.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.204

23 24 25 26

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.60 0.65 0.70 0.75

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.641
D50 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 9 10 11 12 13 14 15 1990 1995 2000 2005 Chloride, in milligrams per liter

USGS 19 (434426112575701)

Theil−Sen line

p−value = 0.279

9.5 10.5 11.5 12.5 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.80 0.90 1.00 1.10

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.003
Appendix D D51

60 62 64 66 68 70 72

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 22 (433422113031701)

Theil−Sen line

p−value = 0.150

21.0 22.0 23.0 24.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.828
D52 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 9.2 9.6 10.0 10.4 1990 1995 2000 2005 Chloride, in milligrams per liter

USGS 23 (434055112595901)

Theil−Sen line

p−value = 0.379

8.5 9.0 9.5 10.0 10.5 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.037

0.5 0.6 0.7 0.8

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.043
Appendix D D53

12.0 13.0 14.0 15.0 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 26 (435212112394001)

Theil−Sen line

p−value = 0.060

14.0 14.5 15.0 15.5 16.0 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.028

0.2 0.4 0.6 0.8 1.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.015

1.5 2.0 2.5 3.0

1990 1995 2000 2005

Arsenic, in micrograms per liter

Theil−Sen line

p−value = 0.750
D54 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 2.0 2.1 2.2 2.3 2.4 1990 1995 2000 2005 Uranium, in micrograms per liter

USGS 26 (435212112394001)

Theil−Sen line

p−value = 0.090
Appendix D D55

50 55 60 65 70 75

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 27 (434851112321801)

Theil−Sen line

p−value = 0.000

27 28 29 30 31

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.187

2.3 2.4 2.5 2.6 2.7

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.050

0.8 1.0 1.2 1.4 1.6 1.8 2.0 1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Theil−Sen line

p−value = 0.973
D56 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 25 30 35 40 45 50

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 29 (434407112285101)

Theil−Sen line

p−value = 0.798

15 20 25 30 35 40

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.676

15 20 25 30 35 40

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.659

2.0 2.5 3.0 3.5 4.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.060
Appendix D D57

18 20 22 24 26 28 30

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 31 (434625112342101)

Theil−Sen line

p−value = 0.000

15.0 15.5 16.0 16.5 17.0 17.5 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.097

26 28 30 32

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.75 0.85 0.95 1.05

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D58 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 30 35 40 45 50 55 60

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 32 (434444112322101)

Theil−Sen line

p−value = 0.057

17 18 19 20 21

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.134

30 35 40 45

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.067

1.0 1.2 1.4 1.6 1.8

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.209
Appendix D D59

4 6 8 10 12 14 16

1985 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 83 (433023112561501)

Theil−Sen line

p−value = 0.290

6789 10

1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.142

0.4 0.5 0.6 0.7 0.8 0.9

Nitrate plus Nitr

1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.092
D60 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 16 18 20 22 24 26

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 86 (432935113080001)

Theil−Sen line

p−value = 0.000

10.5 11.0 11.5 12.0

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.257

0.8 1.0 1.2 1.4 1.6

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.045
Appendix D D61

26 28 30 32 34 36 38

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 97 (433807112551501)

Theil−Sen line

p−value = 0.000

13 14 15 16 17

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

28 30 32 34 36 38

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.002

0.5 1.0 1.5 2.0 2.5

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D62 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.06 0.08 0.10 0.12 0.14

1990 1995 2000 2005

Bromide, in milligrams per liter

USGS 97 (433807112551501)

Theil−Sen line

p−value = 0.042

1.2 1.4 1.6 1.8 2.0 2.2

1990 1995 2000 2005

Arsenic, in micrograms per liter

Theil−Sen line

p−value = 0.144

120 140 160 180 200

1990 1995 2000 2005

Barium, in micrograms per liter

Theil−Sen line

p−value = 0.025

0.8 1.0 1.2 1.4 1.6 1.8

1990 1995 2000 2005

Molybdenum, in micrograms per liter

Theil−Sen line

p−value = 0.000
Appendix D D63

2.0 2.2 2.4 2.6 2.8 3.0

1990 1995 2000 2005

Uranium, in micrograms per liter

USGS 97 (433807112551501)

Theil−Sen line

p−value = 0.938
D64 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 12 14 16 18 20 22 24

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 98 (433657112563601)

Theil−Sen line

p−value = 0.012

9 10 11 12 13

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.920

19 20 21 22 23 24 25

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.666

1.0 1.5 2.0 2.5 3.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.821
Appendix D D65

0.030 0.035 0.040 0.045 0.050

1990 1995 2000 2005

Bromide, in milligrams per liter

USGS 98 (433657112563601)

Theil−Sen line

p−value = 0.932

40 50 60 70 80 90 100

1990 1995 2000 2005

Barium, in micrograms per liter

Theil−Sen line

p−value = 0.399

1.0 1.2 1.4 1.6 1.8 2.0

1990 1995 2000 2005

Uranium, in micrograms per liter

Theil−Sen line

p−value = 0.523

0 50 100 200 300

1990 1995 2000 2005

Zinc, in micrograms per liter

Theil−Sen line

p−value = 0.000
D66 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 14 16 18 20 22 24

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 99 (433705112552101)

Theil−Sen line

p−value = 0.000

23 24 25 26 27 28 29 30

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.290

8 10 12 14 16

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

1.40 1.50 1.60 1.70

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.900
Appendix D D67

0.04 0.05 0.06 0.07 0.08

1990 1995 2000 2005

Bromide, in milligrams per liter

USGS 99 (433705112552101)

Theil−Sen line

p−value = 0.422

0123 4

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Theil−Sen line

p−value = 0.018
D68 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 12 14 16 18 20 22

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 100 (433503112400701)

Theil−Sen line

p−value = 0.080

10 12 14 16 18

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.005

15 20 25

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.023
Appendix D D69

678 9 10 11

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 101 (433255112381801)

Theil−Sen line

p−value = 0.000

10 11 12 13 14 15

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.195

0.6 0.7 0.8 0.9 1.0 1.1

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D70 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 24 26 28 30 32 34 36

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 102 (433853112551601)

Theil−Sen line

p−value = 0.955

13 14 15 16 17

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

25 30 35

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.072

0.06 0.08 0.10 0.12

1990 1995 2000 2005

Bromide, in milligrams per liter

Theil−Sen line

p−value = 0.035
Appendix D D71

0.5 1.0 1.5 2.0

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

USGS 102 (433853112551601)

Theil−Sen line

p−value = 0.002

01234

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Theil−Sen line

p−value = 0.028
D72 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 12 14 16 18 20

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 103 (432714112560701)

Theil−Sen line

p−value = 0.117

8 9 10 11 12 13 14 15

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.927

0.5 0.6 0.7 0.8

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.003
Appendix D D73

14 16 18 20 22 24

1985 1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 107 (432942112532801)

Theil−Sen line

p−value = 0.000

10 12 14 16 18

1985 1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.002

1.0 1.5 2.0 2.5

Nitrate plus Nitr

1985 1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
D74 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 12 14 16 18 20 22

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 109 (432701113025601)

Theil−Sen line

p−value = 0.000

11 12 13 14

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.644

0.45 0.55 0.65

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000
Appendix D D75

14 16 18 20 22 24

1984 1986 1988 1990 1992

Chloride, in milligrams per liter

USGS 110 (432717112501501)

Theil−Sen line

p−value = 0.000

10 12 14 16 18

1984 1986 1988 1990 1992

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.053
D76 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 18 19 20 21 22

1996 1998 2000 2002 2004 2006 2008

Chloride, in milligrams per liter

USGS 110A (432717112501502)

Theil−Sen line

p−value = 0.120

16.5 17.0 17.5 18.0

1996 1998 2000 2002 2004 2006 2008

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.571

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

Nitrate plus Nitr

1996 1998 2000 2002 2004 2006 2008

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.346
Appendix D D77

11 12 13 14 15 16

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 117 (432955113025901)

Theil−Sen line

p−value = 0.000

789 10 11

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.022

16 17 18 19 20 21

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.965

0.65 0.70 0.75

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.002
D78 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 8 9 10 11 12 13 14

1990 1995 2000 2005

Chloride, in milligrams per liter

USGS 119 (432945113023401)

Theil−Sen line

p−value = 0.050

10 11 12 13 14

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.853

20 25 30 35 40

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

1.2 1.3 1.4 1.5 1.6 1.7 1.8

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.526
Appendix D D79

10 12 14 16 18 20

1995 2000 2005

Chloride, in milligrams per liter

USGS 121 (433450112560301)

Theil−Sen line

p−value = 0.010

6.0 6.5 7.0 7.5 8.0 8.5

1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.376

21.0 22.0 23.0 24.0

1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.705

0.7 0.8 0.9 1.0 1.1

Nitrate plus Nitr

1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.254
D80 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 11 12 13 14 15

1996 1998 2000 2002 2004 2006 2008

Chloride, in milligrams per liter

USGS 125 (432602113052801)

Theil−Sen line

p−value = 0.000

11.0 11.5 12.0 12.5 13.0

1996 1998 2000 2002 2004 2006 2008

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.037

0.50 0.54 0.58 0.62

Nitrate plus Nitr

1996 1998 2000 2002 2004 2006 2008

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.346
Appendix D D81

7.2 7.6 8.0 8.4

2000 2002 2004 2006 2008

Chloride, in milligrams per liter

USGS 126A (435529112471301)

Theil−Sen line

p−value = 0.391

8.0 8.5 9.0 9.5

2000 2002 2004 2006 2008

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.561

0.48 0.50 0.52

Nitrate plus Nitr

2000 2002 2004 2006 2008

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.902
D82 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 7.4 7.6 7.8 8.0 8.2 8.4 8.6 2000 2002 2004 2006 2008 Chloride, in milligrams per liter

USGS 126B (435529112471401)

Theil−Sen line

p−value = 0.621

8.0 8.2 8.4 8.6 8.8 9.0 9.2 2000 2002 2004 2006 2008

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.210

0.6 0.8 1.0 1.2

Nitrate plus Nitr

2000 2002 2004 2006 2008

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.688
Appendix D D83

WS INEL 1 (433716112563601)

0 20 40 60 80 120

1990 1995 2000 2005

Chloride, in milligrams per liter

Theil−Sen line

p−value = 0.000

12 14 16 18 20 22

1990 1995 2000 2005

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.000

20 30 40 50 60

1990 1995 2000 2005

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.0 0.1 0.2 0.3 0.4

1990 1995 2000 2005

Bromide, in milligrams per liter

Theil−Sen line

p−value = 0.000
D84 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009

WS INEL 1 (433716112563601)

01234567

Nitrate plus Nitr

1990 1995 2000 2005

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.000

0.5 1.0 1.5 2.0 2.5 3.0 3.5

1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Theil−Sen line

p−value = 0.686
Appendix D D85

234567

1985 1990 1995 2000 2005

Chloride, in milligrams per liter

BIG LOST RIVER AT EXPERIMENTAL DAIRY FARM, NEAR HOWE (13132545)

Theil−Sen line

p−value = 0.072
D86 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 23456789

1985 1990 1995 2000 2005

Chloride, in milligrams per liter

BIG LOST RIVER BELOW INL DIVERSION, NEAR ARCO (13132520)

Theil−Sen line

p−value = 0.000
Appendix D D87

2.0 2.5 3.0 3.5 4.0 4.5 5.0 1985 1990 1995 2000 2005

Chloride, in milligrams per liter

BIG LOST RIVER AT MACKAY (13127700)

Theil−Sen line

p−value = 0.000
D88 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 2468 10 12 14

1970 1980 1990 2000

Chloride, in milligrams per liter

BIG LOST RIVER NEAR ARCO (13132500)

Theil−Sen line

p−value = 0.140

6 8 10 12 14

1970 1980 1990 2000

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.297

10 15 20 25

1970 1980 1990 2000

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.808

40 50 60 70

1970 1980 1990 2000

Calcium, in milligrams per liter

Theil−Sen line

p−value = 0.511
Appendix D D89

10 12 14 16 18

1970 1980 1990 2000

Magnesium, in micrograms per liter

BIG LOST RIVER NEAR ARCO (13132500)

Theil−Sen line

p−value = 0.811

10 12 14 16 18

1970 1980 1990 2000

Silica, in micrograms per liter

Theil−Sen line

p−value = 0.644

0.0 0.5 1.0 1.5 2.0

Nitrate plus Nitr

1970 1980 1990 2000

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.244

0.2 0.3 0.4 0.5 0.6

1970 1980 1990 2000

Fluoride, in milligrams per liter

Theil−Sen line

p−value = 1.000
D90 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 1.5 2.0 2.5

1970 1980 1990 2000

Potassium, in micrograms per liter

BIG LOST RIVER NEAR ARCO (13132500)

Theil−Sen line

p−value = 0.780
Appendix D D91

468 10

1970 1980 1990 2000

Chloride, in milligrams per liter

BIRCH CREEK AT BLUE DOME INN, NEAR RENO (13117020)

Theil−Sen line

p−value = 0.002
D92 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 5 10 15 20

1970 1980 1990 2000

Chloride, in milligrams per liter

LITTLE LOST RIVER NEAR HOWE (13119000)

Theil−Sen line

p−value = 0.030

4 6 8 10 12 14

1970 1980 1990 2000

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.382

10 15 20 25 30

1970 1980 1990 2000

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.664

20 25 30 35 40 45 50

1970 1980 1990 2000

Calcium, in milligrams per liter

Theil−Sen line

p−value = 0.497
Appendix D D93

10 12 14 16 18 20

1970 1980 1990 2000

Magnesium, in micrograms per liter

Theil−Sen line

p−value = 0.648

9 10 11 12 13 14 15 16

1970 1980 1990 2000

Silica, in micrograms per liter

Theil−Sen line

p−value = 0.301

0246

Nitrate plus Nitr

1970 1980 1990 2000

ite as N, in milligrams per liter

Theil−Sen line

p−value = 0.634

1.0 1.5 2.0 2.5

1970 1980 1990 2000

Potassium, in micrograms per liter

Theil−Sen line

p−value = 0.813

LITTLE LOST RIVER NEAR HOWE (13119000)
D94 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 5 10 15

1970 1980 1990 2000

Chloride, in milligrams per liter

MUD LAKE NEAR TERRETON (13115000)

Theil−Sen line

p−value = 0.000

8 10 12 14 16

1970 1980 1990 2000

Sodium, in milligrams per liter

Theil−Sen line

p−value = 0.823

4 6 8 10 12 14 16

1970 1980 1990 2000

Sulfate, in milligrams per liter

Theil−Sen line

p−value = 0.995

10 20 30 40

1970 1980 1990 2000

Calcium, in milligrams per liter

Theil−Sen line

p−value = 0.104
Appendix D D95

8 9 10 11 12 13

1970 1980 1990 2000

Magnesium, in micrograms per liter

Theil−Sen line

p−value = 0.472

10 15 20 25 30

1970 1980 1990 2000

Silica, in micrograms per liter

Theil−Sen line

p−value = 0.070

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

1970 1980 1990 2000

Nitrate plus Nitrite as N, in milligrams per liter

Theil−Sen line

p−value = 0.065

0.20 0.30 0.40 0.50

1970 1980 1990 2000

Fluoride, in milligrams per liter

Theil−Sen line

p−value = 0.908

MUD LAKE NEAR TERRETON (13115000)
D96 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 1.5 2.0 2.5 3.0 3.5 4.0 4.5

1970 1980 1990 2000

Potassium, in micrograms per liter

Theil−Sen line

p−value = 0.686

MUD LAKE NEAR TERRETON (13115000)