Branch of Quality Systems


 

Most Current Cumulative Time Series Charts and Statistical Summaries
for NWQL LS 1433


The Time Series Charts
The charts provide OBSP recovery information for every analyte at different concentrations for every schedule OBSP assesses. The charts exhibit a Locally Weighted Scatterplot Smoothing (LOWESS) line. This line is used to help observe patterns and trends of the data over time. The time series charts also show bias and variability of the OSBP data. The most current time series charts in the table below will be overwritten periodically and will contain data that is currently being reviewed. All data is provisional and may change if the OBSP deems necessary.

There are two tables provided at the bottom of every time series chart that show statistical summaries.

Plotted Points Statistics Table
Description of the OBSP QA recoveries grouped by concentration level. The statistics in the table: mean, median, standard deviation and F-pseudosigma define bias and variability of the OBSP recoveries.

Sample Statistics Table
Counts (N) - The quantity of the variety of items.
Plotted - This number equals the total number in the above table.
Estimated Values - There are a number of reasons the laboratory will estimate (E) a result. If there are 100% of the results estimated the analyte is identified as a permanently estimated compound (analyte name in time series chart will be red).
Deleted Values - The laboratory may delete an entire sample or a single analyte for a number of reasons.
Spiked, Censored - A term for those samples that were spiked and correctly reported as less than a reporting level (possibly a raised reporting level) - the expected concentration was at a lower concentration than the censored result provided by the laboratory.
Spiked - The number of times the OBSP has submitted this analyte to the NWQL.
False Negative - The number of times the laboratory reports this analyte as not present in the sample when it is there.
Not Spiked - The number of times the OBSP has submitted a sample to the appropriate schedule, without this analyte.
False Positive - The number of times the laboratory reports this analyte as present when it is not in the sample.


The charts and data that you might secure from this U.S. Geological Survey (USGS) web page (identified as "OBSP") have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.

Lab Schedule 1433 - Waste Water Compounds by GCMS, Filtered
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1,4-Dichlorobenzene (E) 34572GCM37 106-46-7
1-Methylnaphthalene 62054GCM37 90-12-0
2,6-Dimethylnaphthalene 62055GCM37 581-42-0
2-Methylnaphthalene 62056GCM37 91-57-6
3-beta-Coprostanol (E) 62057GCM37 360-68-9
3-Methyl-1(H)-indole (Skatole) 62058GCM37 83-34-1
3-tert-Butyl-4-hydroxy anisole (BHA) (E) 62059GCM37 25013-16-5
4-Cumylphenol 62060GCM37 599-64-4
4-n-Octylphenol 62061GCM37 1806-26-4
4-tert-Octylphenol 62063GCM37 136-85-6
5-Methyl-1H-benzotriazole 62062GCM37 140-66-9
Acetophenone 62064GCM37 98-86-2
Acetyl hexamethyl tetrahydronaphthalene (AHTN) 62065GCM37 21145-77-7
Anthracene 34221GCM37 120-12-7
Anthraquinone 62066GCM37 84-65-1
Benzo[a]pyrene 34248GCM37 50-32-8
Benzophenone 62067GCM37 119-61-9
beta-Sitosterol (E) 62068GCM37 83-46-5
beta-Stigmastanol (E) 62086GCM37 19466-47-8
Bisphenol A (E) 62069GCM37 80-05-7
Bromacil 04029GCM37 314-40-9
Bromoform (E) 34288GCM37 75-25-2
Caffeine 50305GCM37 58-08-2
Camphor 62070GCM37 76-22-2
Carbaryl (E) 82680GCM37 63-25-2
Carbazole 62071GCM37 86-74-8
Chlorpyrifos 38933GCM37 2921-88-2
Cholesterol (E) 62072GCM37 57-88-5
Cotinine (E) 62005GCM37 486-56-6
Diazinon 39572GCM37 333-41-5
d-Limonene (E) 62073GCM37 5989-27-5
Fluoranthene 34377GCM37 206-44-0
Hexadydrohexamethylcyclopentabenzopyran (HHCB) 62075GCM37 1222-05-5
Indole 62076GCM37 120-72-9
Isoborneol 62077GCM37 124-76-5
Isophorone 34409GCM37 78-59-1
Isopropylbenzene (Cumene) (E) 62078GCM37 98-82-8
Isoquinoline 62079GCM37 119-65-3
Menthol 62080GCM37 89-78-1
Metalaxyl 50359GCM37 57837-19-1
Methyl salicylate 62081GCM37 119-36-8
Metolachlor 39415GCM37 51218-45-2
N,N-diethyl-meta-toluamide (DEET) 62082GCM37 134-62-3
Naphthalene 34443GCM37 91-20-3
Nonylphenol, diethoxy- (total) (E) 62083GCM37 26027-38-2
Octylphenol, diethoxy- (E) 61705GCM37 26636-32-8
Octylphenol, monoethoxy- (E) 61706GCM37 26636-32-8
para-Nonylphenol (total) (E) 62085GCM37 84852-15-3
p-Cresol 62084GCM37 106-44-5
Pentachlorophenol (E) 34459GCM37 87-86-5
Phenanthrene 34462GCM37 85-01-8
Phenol 34466GCM37 108-95-2
Prometon 04037GCM37 1610-18-0
Pyrene 34470GCM37 129-00-0
Tetrachloroethylene (E) 34476GCM37 127-18-4
Tri(2-butoxyethyl)phosphate (E) 62093GCM37 78-51-3
Tri(2-chloroethyl)phosphate 62087GCM37 115-96-8
Tributyl phosphate 62089GCM37 126-73-8
Triclosan 62090GCM37 3380-34-5
Triethyl citrate (ethyl citrate) 62091GCM37 77-93-0
Triphenyl phosphate 62092GCM37 115-86-6
Tris(dichlorisopropyl)phosphate 62088GCM37 13674-87-8

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