QA - Annual Performance Evaluation¶
40 CFR Part 58 Appendix A section 3.2.2 requires the PQAO, each calendar quarter (during which monitors are operated), evaluate at least 25 percent of the SLAMS monitors for SO2, NO2, O3, or CO such that each monitor is evaluated at least once per year. The evaluation is made by challenging the monitor with audit gas standards of known concentration from at least three of ten audit levels. The audit levels selected should represent or bracket 80 percent of ambient concentrations measured by the monitor being evaluated.
Each audit level has a minimum and maximum concentration range, with the lowest range defined as audit level 1. For the criteria gases, 10 audit level ranges are currently defined.
AQS evaluates each reported assessment concentration on the transaction with its reported level number. If the concentration is not within the level’s concentration range, then AQS will produce a warning message when processing the transaction. The concentration values and reported level number will be stored in the database and a warning will be issued on the error report produced by the batch load process.
The maximum and minimum allowable reported values defined for the parameter would also apply, and produce rejections if exceeded.
Examples:
QA|I|Annual PE|0145|06|067|0010|44201|1|20200708|1|087|007|||0.0133|0.0138|0.0276|0.0286|0.0518|0.0532|0.0752|0.0778|||0.1215|0.1271||||||
QA|I|Annual PE|1296|TT|905|9009|42101|1|20200923|1|593|007|||0.074|0.077|0.235|0.24||||||||||||||
Format¶
Seq. |
Name |
Description |
Formatting Rules |
Required |
Key |
|---|---|---|---|---|---|
1 |
Quality Assurance transaction identifier. |
Must = QA |
Always |
||
2 |
Indicator for Insert, Update, or Delete action. |
Must = I, U, or D |
Always |
||
3 |
Indicates the specific QA assessment associated with the transaction. |
Must = Annual PE |
Always |
Y |
|
4 |
Agency Code of organization performing assessment. |
Must exist in AGENCIES reference table. |
Optional; defaults to user agency |
||
5 |
The FIPS state code of the monitor, or “TT” to indicate that the next field on the transaction is a Tribal code. |
Must exist in STATES Reference Table or be ‘TT’ for Tribal Site |
Always |
Y |
|
6 |
The FIPS County Code of the site. If the previous field on the transaction contains “TT”, then the Tribal Code of the site. |
Must exist in COUNTIES (for state) or TRIBAL_AREAS Reference table |
Always |
Y |
|
7 |
Four digit number to uniquely identify site in county and/or tribe. |
Must exist in SITES table with {State Code, county Code} or Tribal Code |
Always |
Y |
|
8 |
The AQS parameter code assigned to the monitor in AQS. |
Must exist in PARAMETERS reference table. |
Always |
Y |
|
9 |
Parameter Occurrence Code: One or two digit number identifying a specific monitor for a parameter at the site. |
Must exist in MONITOR table for non-Insert actions. |
Always |
Y |
|
10 |
Date that the assessment was performed |
YYYYMMDD. |
Always |
Y |
|
11 |
A unique number associated with an assessment performed at a site on a given day. Value should be “1” unless additional same assessments are performed. |
Integer. |
Always |
Y |
|
12 |
The sampling methodology of the monitor being assessed. |
Must exist in SAMPLING METHODOLOGIES reference table. |
Insert |
||
13 |
Units associated with the assessment concentrations (Monitor Concentration and Check Standard Concentration). |
Must exist in UNITS reference table, and unit code must be for Concentration units type. |
Unless Delete |
||
14 |
The concentration value provided by the monitor being assessed at level 1. |
Decimal. |
Insert |
||
15 |
The value of the known gas standard concentration in Audit Level 1. |
Decimal. |
Insert |
||
16 |
The concentration value provided by the monitor being assessed at level 2. |
Decimal. |
Insert |
||
17 |
The value of the known gas standard concentration in Audit Level 2. |
Decimal. |
Insert |
||
18 |
The concentration value provided by the monitor being assessed at level 3. |
Decimal. |
Insert |
||
19 |
The value of the known gas standard concentration in Audit Level 3. |
Decimal. |
Insert |
||
20 |
The concentration value provided by the monitor being assessed at level 4. |
Decimal. |
Insert |
||
21 |
The value of the known gas standard concentration in Audit Level 4. |
Decimal. |
Insert |
||
22 |
The concentration value provided by the monitor being assessed at level 5. |
Decimal. |
Insert |
||
23 |
The value of the known gas standard concentration in Audit Level 5. |
Decimal. |
Insert |
||
24 |
The concentration value provided by the monitor being assessed at level 6. |
Decimal. |
Insert |
||
25 |
The value of the known gas standard concentration in Audit Level 6. |
Decimal. |
Insert |
||
26 |
The concentration value provided by the monitor being assessed at level 7. |
Decimal. |
Insert |
||
27 |
The value of the known gas standard concentration in Audit Level 7. |
Decimal. |
Insert |
||
28 |
The concentration value provided by the monitor being assessed at level 8. |
Decimal. |
Insert |
||
29 |
The value of the known gas standard concentration in Audit Level 8. |
Decimal. |
Insert |
||
30 |
The concentration value provided by the monitor being assessed at level 9. |
Decimal. |
Insert |
||
31 |
The value of the known gas standard concentration in Audit Level 9. |
Decimal. |
Insert |
||
32 |
The concentration value provided by the monitor being assessed at level 10. |
Decimal. |
Insert |
||
33 |
The value of the known gas standard concentration in Audit Level 10. |
Decimal. |
Insert |
||
34 |
PVGP-ID |
Corresponding to the ?producer_id? column on the CYLINDERS table |
Must exist in AAPGVP PRODUCERS reference table. |
Always |
|
35 |
Cylinder Id |
Corresponding to the ?cylinder_id? column on the CYLINDERS table. |
Text (up to 40 characters). |
Always |