Appendix E 1

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

censored data from selected sites.
E2 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 02468

1994 1996 1998 2000 2002 2004 2006 2008

Aluminum, in micrograms per liter

ANP 9 (434856112400001)

Akritas−Theil−Sen line

p -value = 0.068

0.2 0.4 0.6 0.8 1.0

1994 1996 1998 2000 2002 2004 2006 2008

Antimony, in micrograms per liter

Akritas−Theil−Sen line

0.771

0.0 0.2 0.4 0.6 0.8 1.0

1994 1996 1998 2000 2002 2004 2006 2008

Cobalt, in micrograms per liter

Akritas−Theil−Sen line

p -value= 0.584

0.2 0.4 0.6 0.8 1.0

1994 1996 1998 2000 2002 2004 2006 2008

Copper, in micrograms per liter

Akritas−Theil−Sen line

p -value= 0.97

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.

p -value=
Appendix E E3

0246 8 1 0 1 2 1994 1996 1998 2000 2002 2004 2006 2008

Manganese, in micrograms per liter

ANP 9 (434856112400001)

Akritas−Theil−Sen line

p -value= 0.484

0.010 0.015 0.020

1994 1996 1998 2000 2002 2004 2006 2008

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p -value= 0.11

0.2 0.4 0.6 0.8 1.0 1.2

1994 1996 1998 2000 2002 2004 2006 2008

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p -value= 0.924

0.0 0.2 0.4 0.6 0.8 1.0

1994 1996 1998 2000 2002 2004 2006 2008

Lead, in micrograms per liter

Akritas−Theil−Sen line

p -value= 0.687

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E4 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0246 8 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

ARBOR TEST (433509112384801)

Akritas−Theil−Sen line

p −value = 0.252

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E5

0.010 0.015 0.020

1995 2000 2005

Orthophosphate as P, in milligrams per liter

AREA 2 (433223112470201)

Akritas−Theil−Sen line

p −value = 1

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E6 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.015 0.020 0.025 0.030

1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

BADGING FACILITY (433042112535101)

Akritas−Theil−Sen line

p −value = 0.424

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E7

0.010 0.015 0.020 0.025

1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

CPP 4 (433440112554401)

Akritas−Theil−Sen line

p −value= 0.274

10 20 30 40 50

1985 1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.1

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E8 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.008 0.012 0.016 0.020

1980 1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

EBR 1 (433051113002601)

Akritas−Theil−Sen line

p −value = 0.83

6 8 10 12 14

1980 1985 1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.928

0.2 0.4 0.6 0.8 1.0 1.2 1.4

1980 1985 1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.837

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E9

0 10 20 30 40 50 1980 1985 1990 1995

Chromium, in micrograms per liter

FIRE STATION 2 (433548112562301)

Akritas−Theil−Sen line

p −value = 0.633

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E10 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.00 0.10 0.20 0.30

1980 1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

HIGHWAY 3 (433256113002501)

Akritas−Theil−Sen line

p −value = 0.955

2468 10 12 14

1980 1985 1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.724

0.0 0.5 1.0 1.5 2.0

1980 1985 1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.539

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E11

02468 10 12

1990 1995 2000 2005

Aluminum, in micrograms per liter

NO NAME 1 (435038112453401)

Akritas−Theil−Sen line

p −value = 0.027

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Antimony, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.887

0.0 0.5 1.0 1.5 2.0 2.5 3.0

1990 1995 2000 2005

Cobalt, in micrograms per liter

Akritas−Theil−Sen line

p −value = 1

02468 10

1990 1995 2000 2005

Copper, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.973

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E12 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 02468 10

1990 1995 2000 2005

Nickel, in micrograms per liter

NO NAME 1 (435038112453401)

Akritas−Theil−Sen line

p −value = 0.08

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Silver, in micrograms per liter

Silver

0.0 0.1 0.2 0.3 0.4 0.5 0.6

1990 1995 2000 2005

Thallium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.799

012345 6 1990 1995 2000 2005

Zinc, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.015

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E13

0.5 1.0 1.5 2.0 2.5 3.0

1990 1995 2000 2005

Manganese, in micrograms per liter

NO NAME 1 (435038112453401)

Akritas−Theil−Sen line

p −value = 0.614

0.010 0.015 0.020 0.025

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.983

012345 6 1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 1

6 789 10

1990 1995 2000 2005

Molybdenum, in micrograms per liter

Akritas−Theil−Sen line

p −value = 1

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E14 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.005 0.015 0.025

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

NPR TEST (433449112523101)

Akritas−Theil−Sen line

p −value = 0.071

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.185

01234567

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

Akritas−Theil−Sen line

p −value = 0.803

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E15

0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

P AND W 2 (435419112453101)

Akritas−Theil−Sen line

p −value= 0.166

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.798

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E16 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0 5 10 15 20 25 30

1990 1995 2000 2005

Aluminum, in micrograms per liter

PSTF TEST (434941112454201)

Akritas−Theil−Sen line

p −value = 0.352

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Antimony, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.698

1.0 1.5 2.0 2.5

1990 1995 2000 2005

Arsenic, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.449

2468

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.001

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E17

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Cobalt, in micrograms per liter

PSTF TEST (434941112454201)

Akritas−Theil−Sen line

p −value = 0.584

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Copper, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.911

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Lead, in micrograms per liter

Lead

0.0 0.5 1.0 1.5 2.0 2.5

1990 1995 2000 2005

Manganese, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.214

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E18 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.2 0.4 0.6 0.8 1.0 1.2

1990 1995 2000 2005

Nickel, in micrograms per liter

PSTF TEST (434941112454201)

Akritas−Theil−Sen line

p −value = 0.951

0.0 0.1 0.2 0.3 0.4 0.5

1990 1995 2000 2005

Thallium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.921

123456

1990 1995 2000 2005

Zinc, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.398

0.010 0.015 0.020 0.025 0.030

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.237

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E19

0.0 0.5 1.0 1.5

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

PSTF TEST (434941112454201)

Akritas−Theil−Sen line

p −value= 0.177

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E20 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 5678 9 10 11 1980 1985 1990 1995 2000 2005 Chromium, in micrograms per liter

SITE 4 (433617112542001)

Akritas−Theil−Sen line

p −value = 0.534

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E21

0.010 0.020 0.030 0.040

1995 2000 2005

Orthophosphate as P, in milligrams per liter

SITE 9 (433123112530101)

Akritas−Theil−Sen line

p −value= 0.326

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E22 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.01 0.02 0.03 0.04 0.05

1980 1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

SITE 14 (434334112463101)

Akritas−Theil−Sen line

p −value = 0.052

0 2468 10 12 14

1980 1985 1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.231

0.2 0.4 0.6 0.8 1.0 1.2 1.4

1980 1985 1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.336

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E23

0.010 0.015 0.020 0.025 0.030

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

SITE 17 (434027112575701)

Akritas−Theil−Sen line

p −value= 0.974

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E24 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0 10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

SITE 19 (433522112582101)

Akritas−Theil−Sen line

p −value = 0.388 Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E25

0.010 0.020 0.030

1980 1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

SPERT 1 (433252112520301)

Akritas−Theil−Sen line

p −value= 0.596

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E26 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0 10 20 30 40 50 1980 1985 1990 1995 2000 2005 Chromium, in micrograms per liter

TRA 1 (433521112573801)

Akritas−Theil−Sen line

p −value = 0.688 Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E27

0 10 20 30 40 50 1980 1985 1990 1995 2000 2005

Chromium, in micrograms per liter

TRA 3 (433522112573501)

Akritas−Theil−Sen line

p −value= 0.679

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E28 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0 10 20 30 40 50 1980 1985 1990 1995 2000 2005 Chromium, in micrograms per liter

TRA 4 (433521112574201)

Akritas−Theil−Sen line

p −value = 0.665

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E29

0.005 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 1 (432700112470801)

Akritas−Theil−Sen line

p −value= 0.14

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.807

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E30 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.015 0.020 0.025

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 2 (433320112432301)

Akritas−Theil−Sen line

p −value = 0.501

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E31

0.010 0.015 0.020 0.025

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 4 (434657112282201)

Akritas−Theil−Sen line

p −value= 0.092

8 9 10 11 12 13 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.056

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E32 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.00 0.02 0.04 0.06 0.08

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 5 (433543112493801)

Akritas−Theil−Sen line

p −value = 0.253

02468 10 12

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

Akritas−Theil−Sen line

p −value = 0.519

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E33

0.010 0.014 0.018 0.022

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 6 (434031112453701)

Akritas−Theil−Sen line

p −value= 0.015

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E34 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 2468 10 12 14

1990 1995 2000 2005

Aluminum, in micrograms per liter

USGS 7 (434915112443901)

Akritas−Theil−Sen line

p −value = 0.021

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Antimony, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.974

1.5 2.5 3.5 4.5

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.000

0.0 0.5 1.0 1.5 2.0 2.5 3.0

1990 1995 2000 2005

Cobalt, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.953

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E35

0246 8 10 1990 1995 2000 2005

Copper, in micrograms per liter

USGS 7 (434915112443901)

Akritas−Theil−Sen line

p −value= 0.676

345678 9 10 1990 1995 2000 2005

Molybdenum, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.581

0 246 8 10 1990 1995 2000 2005

Nickel, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.299

0.0 0.2 0.4 0.6 0.8

1990 1995 2000 2005

Thallium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.944

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E36 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0 5 10 15 20 25 30

1990 1995 2000 2005

Zinc, in micrograms per liter

USGS 7 (434915112443901)

Akritas−Theil−Sen line

p −value = 0.116

0.005 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.36

0.0 0.5 1.0 1.5 2.0 2.5 3.0

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

Akritas−Theil−Sen line

p −value = 1

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E37

0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 8 (433121113115801)

Akritas−Theil−Sen line

p −value= 0.187

2 468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value=1

0.0 1.0 2.0 3.0

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.801

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E38 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.014 0.018 0.022

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 9 (432740113044501)

Akritas−Theil−Sen line

p −value = 0.589

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.947

0.5 1.0 1.5 2.0 2.5 3.0

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

Akritas−Theil−Sen line

p −value = 0.523

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E39

0.00 0.05 0.10 0.15

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 11 (432336113064201)

Akritas−Theil−Sen line

p −value= 0.034

5 10 15

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.587

0.0 1.0 2.0 3.0

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.582

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E40 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

Orthophosphate as P, in milligrams per liter

USGS 12 (434126112550701)

Akritas−Theil−Sen line

p −value = 0.004

6 8 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 1

0246 8 1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.026

0.10 0.20 0.30 0.40

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.637

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E41

0.010 0.020 0.030 0.040

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 15 (434234112551701)

Akritas−Theil−Sen line

p −value= 0.072

0 123

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.072

0.1 0.2 0.3 0.4 0.5 0.6

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.011

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E42 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

USGS 17 (433937112515401)

Akritas−Theil−Sen line

p −value = 0.332

0.0 0.5 1.0 1.5 2.0 2.5 3.0

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

Akritas−Theil−Sen line

p −value = 0.003

0.010 0.020 0.030 0.040

1990 1995 2000 2005

Bromide, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.252

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E43

0.008 0.012 0.016 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 18 (434540112440901)

Akritas−Theil−Sen line

p −value= 0.174

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E44 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 19 (434426112575701)

Akritas−Theil−Sen line

p −value = 0.899

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.684

01234 5 1990 1995 2000 2005 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.005

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E45

0.006 0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 23 (434055112595901)

Akritas−Theil−Sen line

p −value= 0.089

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.747

0246 8 1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.959

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E46 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 246 8 10 1990 1995 2000 2005 Aluminum, in micrograms per liter

USGS 26 (435212112394001)

Akritas−Theil−Sen line

p −value = 0.01

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Antimony, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.886

35 36 37 38 39 40

1990 1995 2000 2005

Barium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.132

23456

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.000

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E47

0.0 0.5 1.0 1.5 2.0 2.5 3.0

1990 1995 2000 2005

Cobalt, in micrograms per liter

USGS 26 (435212112394001)

Akritas−Theil−Sen line

p −value= 0.956

02468 10

1990 1995 2000 2005

Copper, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.499

0.5 1.0 1.5 2.0

1990 1995 2000 2005

Manganese, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.372

02468 10

1990 1995 2000 2005

Nickel, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.899

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E48 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.0 0.1 0.2 0.3 0.4 0.5

1990 1995 2000 2005

Thallium, in micrograms per liter

USGS 26 (435212112394001)

Akritas−Theil−Sen line

p −value = 0.799

0 50 100 200 300

1990 1995 2000 2005

Zinc, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.046

0.000 0.005 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.015

0.2 0.4 0.6 0.8 1.0

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

Akritas−Theil−Sen line

p −value = 0.151

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E49

4 6 8 10 1990 1995 2000 2005

Molybdenum, in micrograms per liter

USGS 26 (435212112394001)

Akritas−Theil−Sen line

p −value= 0.018

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E50 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.005 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 27 (434851112321801)

Akritas−Theil−Sen line

p −value = 0.047

2468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.758

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E51

0.010 0.015 0.020 0.025 0.030

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 29 (434407112285101)

Akritas−Theil−Sen line

p −value= 0.065

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E52 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.015 0.020 0.025

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 31 (434625112342101)

Akritas−Theil−Sen line

p −value = 0.361

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E53

0.000 0.010 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 32 (434444112322101)

Akritas−Theil−Sen line

p −value= 0.01

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E54 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 5 10 15 20

1985 1990 1995 2000 2005

Chromium, in micrograms per liter

USGS 83 (433023112561501)

Akritas−Theil−Sen line

p −value = 0.311

0.008 0.012 0.016 0.020

1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.341

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E55

0.005 0.015 0.025

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 86 (432935113080001)

Akritas−Theil−Sen line

p −value= 0.002

5 10 15

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.52

0.5 1.0 1.5

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.96

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E56 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009

2 468 10

1990 1995 2000 2005

Aluminum, in micrograms per liter

USGS 97 (433807112551501)

Akritas−Theil−Sen line

p −value = 0.16

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Antimony, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.653

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Cadmium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.93

10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 1

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E57

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Cobalt, in micrograms per liter

USGS 97 (433807112551501)

Akritas−Theil−Sen line

p −value = 0.653

0.5 1.0 1.5

1990 1995 2000 2005

Copper, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.282

02468 10 12 14

1990 1995 2000 2005

Lead, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.981

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Manganese, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.923

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E58 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.00 0.05 0.10 0.15 0.20

1990 1995 2000 2005

Mercury, in micrograms per liter

USGS 97 (433807112551501)

Akritas−Theil−Sen line

p −value = 0.621

0.0 0.5 1.0 1.5 2.0 2.5 3.0

1990 1995 2000 2005

Nickel, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.617

1.5 2.0 2.5

1990 1995 2000 2005

Selenium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.615

012345

1990 1995 2000 2005

Silver, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.462

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E59

0 50 100 150

1990 1995 2000 2005

Zinc, in micrograms per liter

USGS 97 (433807112551501)

Akritas−Theil−Sen line

p −value= 0.09

0.10 0.12 0.14 0.16 0.18 0.20

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.563

0.010 0.020 0.030 0.040

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.043

0246 8

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.006

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E60 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 246 8 10

1990 1995 2000 2005

Aluminum, in micrograms per liter

USGS 98 (433657112563601)

Akritas−Theil−Sen line

p −value = 0.088

0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Antimony, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.923

1.0 1.2 1.4 1.6 1.8 2.0

1990 1995 2000 2005

Arsenic, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.653

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Cadmium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.636

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E61

0 10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

USGS 98 (433657112563601)

Akritas−Theil−Sen line

p −value= 0.014

0.0 0.2 0.4 0.6 0.8 1.0

1990 1995 2000 2005

Cobalt, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.7

02468 10

1990 1995 2000 2005

Copper, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.769

02468 10 12

1990 1995 2000 2005

Lead, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.000

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E62 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0246 8 10

1990 1995 2000 2005

Manganese, in micrograms per liter

USGS 98 (433657112563601)

Akritas−Theil−Sen line

p −value = 0.132

0.00 0.05 0.10 0.15 0.20

1990 1995 2000 2005

Mercury, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.929

0.0 0.5 1.0 1.5 2.0

1990 1995 2000 2005

Nickel, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.354

1.0 1.5 2.0 2.5

1990 1995 2000 2005

Selenium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.009

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E63

0.0 0.5 1.0 1.5 2.0

1990 1995 2000 2005

Silv er, in micrograms per liter

USGS 98 (433657112563601)

Akritas−Theil−Sen line

p −value= 0.542

0.10 0.20 0.30 0.40

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.258

0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.99

0 20 40 60 80

1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.000

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E64 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 99 (433705112552101)

Akritas−Theil−Sen line

p −value = 0.559

10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.521

0.10 0.15 0.20 0.25 0.30

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.299

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E65

0 10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

USGS 100 (433503112400701)

Akritas−Theil−Sen line

p −value= 0.764

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E66 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.006 0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 101 (433255112381801)

Akritas−Theil−Sen line

p −value = 0.289

0 10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.921

123 4

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

Akritas−Theil−Sen line

p −value = 0.824

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E67

0.02 0.06 0.10

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 102 (433853112551601)

Akritas−Theil−Sen line

p −value = 0.007

0.10 0.12 0.14 0.16 0.18 0.20

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value = 1

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E68 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 103 (432714112560701)

Akritas−Theil−Sen line

p −value = 0.795

468 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.099

01234 5

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

Akritas−Theil−Sen line

p −value = 0.235

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E69

0.008 0.012 0.016 0.020

1985 1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 107 (432942112532801)

Akritas−Theil−Sen line

p −value= 0.131

468 10 12 14

1985 1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value= 0.487

0.2 0.4 0.6 0.8 1.0 1.2

1985 1990 1995 2000 2005

Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value= 0.739

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E70 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.005 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 109 (432701113025601)

Akritas−Theil−Sen line

p −value = 0.188

4 6 8 10 12 14

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.229

0.2 0.4 0.6 0.8 1.0 1.2

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

Akritas−Theil−Sen line

p −value = 0.426

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E71

0.01 0.03 0.05 0.07

1996 1998 2000 2002 2004 2006 2008

Orthophosphate as P, in milligrams per liter

USGS 110A (432717112501502)

Akritas−Theil−Sen line

p −value = 0.815

02468 10 12 14

1996 1998 2000 2002 2004 2006 2008

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.188

0.5 1.0 1.5 2.0 2.5 3.0 3.5

1996 1998 2000 2002 2004 2006 2008 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.624

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E72 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.005 0.010 0.015 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 117 (432955113025901)

Akritas−Theil−Sen line

p −value = 0.124

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E73

0.008 0.012 0.016 0.020

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 119 (432945113023401)

Akritas−Theil−Sen line

p −value= 0.69

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E74 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.015 0.020 0.025 0.030

1995 2000 2005

Orthophosphate as P, in milligrams per liter

USGS 121 (433450112560301)

Akritas−Theil−Sen line

p −value = 0.223

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E75

0.010 0.014 0.018

1996 1998 2000 2002 2004 2006 2008

Orthophosphate as P, in milligrams per liter

USGS 125 (432602113052801)

Akritas−Theil−Sen line

p −value = 0.524

2468 10 12 14

1996 1998 2000 2002 2004 2006 2008

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.615

0.0 0.5 1.0 1.5 2.0 2.5 3.0

1996 1998 2000 2002 2004 2006 2008 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.09

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E76 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.014 0.018

2000 2002 2004 2006 2008

Orthophosphate as P, in milligrams per liter

USGS 126A (435529112471301)

Akritas−Theil−Sen line

p −value = 0.623

2468 10

2000 2002 2004 2006 2008

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.753

0 123 4 2000 2002 2004 2006 2008 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.668

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E77

0.010 0.014 0.018

2000 2002 2004 2006 2008

Orthophosphate as P, in milligrams per liter

USGS 126B (435529112471401)

Akritas−Theil−Sen line

p −value = 0.922

2468 10

2000 2002 2004 2006 2008

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.482

0.2 0.6 1.0 1.4

2000 2002 2004 2006 2008 Total Organic Carbon, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.357

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E78 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009 0.010 0.014 0.018

1990 1995 2000 2005

Orthophosphate as P, in milligrams per liter

WS INEL 1 (433716112563601)

Akritas−Theil−Sen line

p −value = 0.173

10 20 30 40 50

1990 1995 2000 2005

Chromium, in micrograms per liter

Akritas−Theil−Sen line

p −value = 0.02

0.1 0.2 0.3 0.4 0.5

1990 1995 2000 2005

Fluoride, in milligrams per liter

Akritas−Theil−Sen line

p −value = 0.372

Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
Appendix E E79

0.1 0.2 0.3 0.4 0.5

1970 1980 1990 2000

Fluoride, in milligrams per liter

LITTLE LOST RIVER NR HOWE ID (13119000)

Akritas−Theil−Sen line

p −value = 0.119 Vertical dots indicate a concentration 

 less than the extent of the dotted line.

Symbols used on each graph is the 

 uncensored concentration.
E80 Water-Quality Characteristics and Trends for Selected Sites, Idaho National Laboratory, Idaho, 1949–2009

This page left intentionally blank