- Ammonia (NH4+ as N), Fil, DA -
Blind Blank Results
Test ID: 00608SHC02
Open Data Set

The SGPlot Procedure

False Positive Rate for Ammonia (NH4+ as N), Fil, DA

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Ammonia (NH4+ as N), Fil, DA 00608SHC02 3116 2015 58 3 5%
      2016 51 3 6%
      2017 18 1 6%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Ammonia (NH4+ as N), Unf, DA -
Blind Blank Results
Test ID: 00610CL017
Open Data Set

The SGPlot Procedure

False Positive Rate for Ammonia (NH4+ as N), Unf, DA

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Ammonia (NH4+ as N), Unf, DA 00610CL017 2188 2015 22 0 0%
      2016 51 0 0%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Kjeldahl Nitrogen (NH4+ +org N as N), Fil -
Blind Blank Results
Test ID: 00623KJ002
Open Data Set

The SGPlot Procedure

False Positive Rate for Kjeldahl Nitrogen (NH4+ +org N as N), Fil

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Kjeldahl Nitrogen (NH4+ +org N as N), Fil 00623KJ002 1985 2015 52 2 4%
      2016 51 2 4%
      2017 18 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Kjeldahl Nitrogen (NH4+ +org N as N), Unf -
Blind Blank Results
Test ID: 00625KJ008
Open Data Set

The SGPlot Procedure

False Positive Rate for Kjeldahl Nitrogen (NH4+ +org N as N), Unf

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Kjeldahl Nitrogen (NH4+ +org N as N), Unf 00625KJ008 1986 2015 52 1 2%
      2016 51 0 0%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Nitrate plus Nitrite (NO3-+NO2- as N), Fil -
Blind Blank Results
Test ID: 00631RED01
Open Data Set

The SGPlot Procedure

False Positive Rate for Nitrate plus Nitrite (NO3-+NO2- as N), Fil

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Nitrate plus Nitrite (NO3-+NO2- as N), Fil 00631RED01 3156 2015 52 3 6%
      2016 51 1 2%
      2017 18 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Nitrate plus Nitrite (NO3-+NO2- as N), Fil, low-level -
Blind Blank Results
Test ID: 00631RED02
Open Data Set

The SGPlot Procedure

False Positive Rate for Nitrate plus Nitrite (NO3-+NO2- as N), Fil, low-level

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Nitrate plus Nitrite (NO3-+NO2- as N), Fil, low-level 00631RED02 3157 2015 52 6 12%
      2016 51 2 4%
      2017 18 1 6%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Nitrite (NO2- as N), Fil -
Blind Blank Results
Test ID: 00613DZ001
Open Data Set

The SGPlot Procedure

False Positive Rate for Nitrite (NO2- as N), Fil

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Nitrite (NO2- as N), Fil 00613DZ001 3117 2015 58 2 3%
      2016 51 2 4%
      2017 18 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Orthophosphate (PO4 3- as P), Fil -
Blind Blank Results
Test ID: 00671PHM01
Open Data Set

The SGPlot Procedure

False Positive Rate for Orthophosphate (PO4 3- as P), Fil

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Orthophosphate (PO4 3- as P), Fil 00671PHM01 3118 2015 58 0 0%
      2016 51 1 2%
      2017 18 1 6%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Nitrogen (NH4++NO3-+NO2-+org N as N), Fil, persulfate dig. -
Blind Blank Results
Test ID: 62854CL063
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Nitrogen (NH4++NO3-+NO2-+org N as N), Fil, persulfate dig.

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Nitrogen (NH4++NO3-+NO2-+org N as N), Fil, persulfate dig. 62854CL063 2754 2015 52 1 2%
      2016 51 0 0%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Nitrogen (NH4++NO3-+NO2-+org N as N), UNF, acidified, persulfate dig. -
Blind Blank Results
Test ID: 62855AKP01
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Nitrogen (NH4++NO3-+NO2-+org N as N), UNF, acidified, persulfate dig.

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Nitrogen (NH4++NO3-+NO2-+org N as N), UNF, acidified, persulfate dig. 62855AKP01 2756 2015 52 0 0%
      2016 51 3 6%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Phosphorus (as P), Fil, Kjeldahl -
Blind Blank Results
Test ID: 00666KJ005
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Phosphorus (as P), Fil, Kjeldahl

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Phosphorus (as P), Fil, Kjeldahl 00666KJ005 1983 2015 52 0 0%
      2016 51 0 0%
      2017 18 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Phosphorus (as P), Fil, persulfate dig. -
Blind Blank Results
Test ID: 00666CL063
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Phosphorus (as P), Fil, persulfate dig.

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Phosphorus (as P), Fil, persulfate dig. 00666CL063 2757 2015 52 1 2%
      2016 51 2 4%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Phosphorus (as P), Fil, persulfate dig., low-level -
Blind Blank Results
Test ID: 00666CL020
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Phosphorus (as P), Fil, persulfate dig., low-level

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Phosphorus (as P), Fil, persulfate dig., low-level 00666CL020 2331 2015 52 1 2%
      2016 51 0 0%
      2017 18 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Phosphorus (as P), Unf, acidified, Kjeldahl -
Blind Blank Results
Test ID: 00665KJ009
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Phosphorus (as P), Unf, acidified, Kjeldahl

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Phosphorus (as P), Unf, acidified, Kjeldahl 00665KJ009 1984 2015 52 1 2%
      2016 51 1 2%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Phosphorus (as P), Unf, acidified, persulfate dig. -
Blind Blank Results
Test ID: 00665AKP01
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Phosphorus (as P), Unf, acidified, persulfate dig.

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Phosphorus (as P), Unf, acidified, persulfate dig. 00665AKP01 2759 2015 52 1 2%
      2016 51 5 10%
      2017 12 0 0%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017



- Total Phosphorus (as P), Unf, acidified, persulfate dig., low-level -
Blind Blank Results
Test ID: 00665CL021
Open Data Set

The SGPlot Procedure

False Positive Rate for Total Phosphorus (as P), Unf, acidified, persulfate dig., low-level

Analyte Test ID Lab Code Water Year # of
Samples
# of
False Pos.
*False
Positive Rate
Total Phosphorus (as P), Unf, acidified, persulfate dig., low-level 00665CL021 2333 2015 52 1 2%
      2016 51 3 6%
      2017 12 3 25%
*Highlighted if false positive rate > 5 %

Updated 02/17/2017