# Presentation: 045450

## Laboratory Evaluation Help Center

- Step-by-Step Guidance for the “**Lab Data Form”**

## WARNING!

- The forms available on the LEP website are **not yet live**. They are mock-ups of the upcoming web-based forms that will feed directly to our database.
- Do not enter data into these forms while on the web – all entries will be lost. Instead, copy the form to your computer and use them as a template for now.

## No Proficiency Test Sample Data?

- If you do not participate in round-robin or blind proficiency testing studies for the analyses requested, you will not be able to fill out this data form at this time.
- In any case, please **DO** send in the _[Method Data Table ](file:///lab_methodform.xls)__even if you don’t have any performance data._
- If you don’t have blind test data, please contact the USGS Project Chief as soon as possible to arrange for blind sample submission.

## Lab Form – DATA

- Table 2 is used for passing the results of double blind studies to the USGS project chief.

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form – DATA

- Copy in the Analyte Names, Pcode, Matrix, and Method (if populated) from the Project Form data provided you by the USGS Project Chief.
- If the USGS Project Chief did not fill in the _method_ field, they are looking for your suggested method to best match their analyte list, matrix, and concentration ranges expected. **Please provide a suggested method!**

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  |  |  |  |  |  |  |  |  |  |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form – DATA

- “Date Analyzed” is the date of analysis of a Test Sample. This is necessary to assure that USGS has your most recent data.

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form – DATA

- “Sample Type” is the kind of blind sample reported. Examples include WS and WP studies, USGS Standard Reference Samples, or Environment Canada studies (to name a few).

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form – DATA

- “Study Name” is the name of the specific study, such as WS109, WP 131, or M-176 .

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form –DATA

- Reported Value is the numerical result of the test.

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form –DATA

- “Units” is the concentration as reported.

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## Lab Form –DATA

- “True Value” is the value to compare with the “Reported Value”. It is the expected concentration.

| Analyte |  P code | Matrix | Method | Date Analyzed | Sample Type | Study Name | Reported Value | Units | True Value  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| example 2 | 45678B | GW | SM1234 | 2/2/2006 | USGS Round robin | Fall 06 | 1 | mg/L | 0.98 |

## End

- _[http://bqs.usgs.gov/lep/step2.html](http://bqs.usgs.gov/lep/step2.html)_
- Brooke Connor, Project Chief 303.236.1877
- Terry Schertz, Branch Chief 303.236.1835

- >>go to the lab form

- >>end show