How do I create a new primary monitor at a site where PM2.5 monitoring has a QA collocated monitor?

1. Log into AQS and connect to the screening group that owns the QA Collocated monitor for PM_2.5 at the site (there should only be one).
2. On the maintain -> Monitor form, query the QA Collocated monitor.
3. Click on the QA Collocation tab and add the end date for the last day that the current primary monitor will be the primary monitor and click Save.
4. On the Maintain -> Monitor form, query the current primary monitor (it should be both the QA Collocation Primary and the NAAQS Primary).
5. Click on the QA Collocation tab and add the end date for the last day that the current primary monitor will be the primary monitor and click Save.
6. On the Maintain -> Site form query the site.
7. Click on the Primary Monitor Period tab.
8. On the row for the current primary monitor enter the same date as the one used above.  Do NOT click save yet.
9. Create a new row for the new monitor to become the Primary with a begin date one day after the end date entered above.  This date must also be in an open sample period for that monitor.  Click Save.
10. On the Maintain -> Monitor form query the new primary monitor.
11. Click on the QA Collocation tab.
12. Enter the appropriate begin date for QA Collocation to start and 'Y' in the Primary Monitor column.  Click Save.
13. On the Maintain -> Monitor form query the QA Collocated monitor.
14. Click on the QA Collocation tab and create a new row.
15. Enter the same begin date as was entered for the primary and 'N' in the Primary Monitor column.
16. Enter the distance from the primary monitor then click Save and you are done.

Note: If any of the monitors above is owned by a different screening group you will need to connect to that screening group before proceeding with access to that monitor.