Memos
In the table below, find the file you would like to download, then click on the icon to the right of the file name. Files are available in the format represented by icon(s) with each file. Note: Release notes for the AQS Web application are found via the AQS Web Change Log page.
You will need Adobe Acrobat Reader to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.
Issued | File Description | File Type |
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01/31/14 | AQS Update for Jan. 31, 2014 | |
12/07/13 | AQS Update for Dec. 16, 2013 View AQS Monitor Metadata Webinar AQS Monitor Metadata Webinar (Power Point) AQS Monitor Metadata Q and A (MS Word) |
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6/28/13 | AQS Status Update for June 28, 2013 |
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03/27/13 | In preparation for the new AQS Data Certification Report, a new monitor agency role of “CERTIFYING” has been created. This role specifies the agency that is responsible for certifying the monitor’s data. The certifying agency role has been initially populated based upon EPA Regional Office input. The following spreadsheets show the initial assignments made based upon Regional Office comments. Count of Monitors by PQAO Certifying Agencies-PQAOs Monitors without Certifying Agency |
Count of Monitors by PQAO Certifying Agencies-PQAOs Monitors without Certifying Agency |
01/31/13 | ENSC Changes | |
01/04/13 | Lead monitors and the analyzing agency AQSQA refresh AQS Processing Results email includes a link to any failed transactions |
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12/14/12 | Security Changes (update) AQS software deployment schedule for 2013 AQS conference information Standard Reports - how you are notified if your report fails to run Additional Report Entries under "Retrieve Reports" tab PM NAAQS and Impacts on AQS |
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12/05/12 | AQS Guidelines for Reporting Collocated PM2.5 and Lead | |
10/19/12 | Regular Software Deployment | |
10/01/12 | Reversal of July 23, 2012 change to Ozone 8-Hour Design Value Calculations | |
08/28/12 | Change of standard units & removal of 1/2 MDL substitution & PM10 speciated metals | |
07/23/12 | AQS Batch form - rerun reports for "old" jobs; Scan Report is available Maintain Bug (fixed) Summaries for 8-hour ozone Discoverer (new URL) |
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05/24/12 | New AQS URL Submit Automation software and webinar is available/ your ENSC user ID Updating an Expired Password Precision and Accuracy Data Maintain Site |
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12/12/11 | Precision data - AQS is no longer automatically generating precision data transactions during the load process; precision data for collocated monitors will be created on demand as needed for a report. Changes affect several reports. - 255 Data Quality Indicator Report, 246 Precision Report, and 250 P/A Raw Data Report – precision data is now generated via a custom database view - 502 Precision and Accuracy Data Extract - no change; shows only precision data loaded by a user via RP transactions |
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12/12/11 | Accuracy audit levels expanded to 10, rather than 5. Accuracy transactions are used to report QA data for annual performance evaluations, semi-annual flow rate audits, and lead audit strip results. | |
10/19/11 | Topics: General Fixes to Reports (“Standard Report Selection Criteria” form, AMP430/Data Completeness for ozone monitors, AMP350/Raw Data workfile, AMP502/Extract P/A Data XML file, and AMP450NC/Quicklook All Parameters for all NAAQS durations) |
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08/17/11 | - AQS Software Release Notes - Compliance with the Exchange Network - AQS and the CDX Exchange Network Web Client - AQS Software Availability and Outreach Plan - AQS transactions to XML converter |
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07/22/11 | AQS Software Release Notes - AMP430/Data Completeness Report problem with PM2.5 national extractions. - Maintain Blanks – Update problems when changing Blanks data via Maintain (online) have been fixed. - Primary Monitor Period Begin Date cannot be earlier than Sample Period Begin Date. |
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06/23/11 | AQS Software Release Notes - SO2 Design values - Removal of 1/2 MDL substitution for HAPS and NATTA parameters + List of HAPS and NATTS Required parameters for which 1/2 MDL substitution will end - Discoverer users - "NAAQS_Averages_V" update |
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06/12/11 | AQS Software Release Notes and General User Notices - AMP355/Combined Site Sample Values Report fix for lead - Precision Data cannot be loaded with invalid Agency Code - "Maintain Events" form fixes - DISCOVERER users: changes to NAAQS_Averages_V folder; If you use this folder, you must update your query! - DISCOVERER users: All the Views will be reviewed; any updates to the Views will be announced through another user email.
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06/09/11 | AQS Software Release Notes "Maintain Site LOV problem. |
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05/10/11 | Frequently asked questions about the AMP 255 report | |
04/25/11 | AQS Software Release Notes and General User Notices - RCF dates on "Maintain Monitor" - SO2 5-min and AMP255 - Quarterly creditable sample count and AMP480 - Removal of 11101 from "Criteria" list - Qualifier code "9" update - Discoverer users: "Exceptional Event " folder - Sampling methodologies - information sources
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03/18/11 | Software Release Notes for AQS Patch Deployment | |
03/10/11 | Guidance for reporting annual performance evaluation(accuracy data) to AQS |
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02/28/11 | Addendum to Negative Values | |
01/14/11 | Wind Speed and Wind Direction Parameter Name Change | |
12/20/10 | AQS Software Patch Schedule for 2011 | |
12/11/10 12/01/10 |
"Software Release Notes: Patches for Data Completeness, QuickLook, and Design Value Reports; Warning about Edit Error Detail Report" AQS Data Completeness Report
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12/02/10 | Expanded Audit Levels for Annual Performance | |
11/17/10 | AQS Password Changes (Revised) | |
11/10/10 | Tech memo for PE audit levels | |
01/11/11 | NO2 and SO2 NAAQS Revisions to AQS (Additions to Pase I) - standard units fo NO2 and SO2 related parameters changed to PPB | |
01/03/11 | Guidelines for Reporting 5-minute SO2 data to AQS | |
11/03/10 | Technical Note - Reporting NO2 and SO2, and NCORE Reporting for NOy and trace-level gases (Revision) | |
10/15/10 | Software Release Notes for NO2 and SO2 NAAQS revisions to AQS (Phase I) | |
08/04/10 | Software Release Notes for PM2.5 summaries October 1, 2010
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07/15/10 | Software Release Notes for the 2008 Lead NAAQS Implementation July 15, 2010 |
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05/14/10 | Ambient Air Monitoring Data Certification for 2009 | |
05/14/10 | Revised Software release Notes for May 14, 2010 | |
04/16/10 | AQS Archive Data Updates | |
04/15/10 | AQS Patches - April 15, 2010 | |
04/08/10 | AQS Patches - April 7 & 8, 2010 | |
04/06/10 | Revised Software release Notes for March 15, 2010 | |
03/09/10 | Update to Historical CSN Carbon Data | |
02/04/10 | Modifications to AQS | |
07/28/09 | Software release Notes for July 30, 2009 | |
06/09/09 | Changes in the AMP255 | |
05/15/09 | Ambient Air Monitoring Data Certification for 2008 | |
05/01/09 | " Technical Note - Lead Data Reporting to AQS "
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03/19/09 | Non Regulatory Monitor Type Guidance |
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02/12/09 | Recent updates to AQS | |
10/08/08 | Tribal Reporting to AQS | |
09/29/08 | Implementing New Qualifier Codes Exceptional Event Processing | |
09/25/08 | AQS Software Release Notes for the September 27, 2008 Installation | |
09/24/08 | September 27, 2008 Software Release Memo | |
07/24/08 | Implementing Continuous PM 2.5 Federal Equivalent Methods (FEMS) and Approved Regional Methods (ARMS) in State or Local Air Monitoring Station (SLAMS) Networks | |
06/09/08 | Questions and answers on State/Local/Tribal certification of 2007 ambient monitoring data in AQS Attachment 1: Ambient Air Monitoring Data Certification for 2007 rev2 Attachment 2: Certification Procedures 2007 cover message |
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06/09/08 | 2007 Data Certification and P&A Summary Recomputation Follow-up Attachment 1: AMP255 Fixes Table |
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05/20/08 | New Ozone Standard / System Outage | |
01/09/08 | AQS Modifications to Implement the Exceptional Event Rule Attachment 1: New QualifiersAttachment 2: REQEXC Parameters
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12/18/07 | E-Mail: Instructions for Adding Exceptional Event Comments to Flags | |
11/28/07 | AQS software upgrade installed to correct the problem with report AMP460 (Raw Data Workfile Parameters by Time) and make a new report AMP470 (Raw Values By Year) available | |
08/28/07 | E-Mail: Populating Site Standard Coordinates Attachment 1: Procedure to populate Standard Coordinates (39KB) Attachment 2: St01site geo spatial.xls (1150KB) |
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05/10/07 | AQS software upgrade to be installed between 7:30 - 8:00am 5/11/07 | |
03/9/07 | AQS Geospatial Doc | |
12/14/06 | Plans for Updating the Air Quality Index to Reflect New PM2.5 Standards | |
09/28/06 | Email: Retrieval Problem & Inactivated Local Primary Standard Codes | |
09/20/06 | Email: AQS Retrieval Problem
Attached spreadsheet - Reports with Possible Missing Data |
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08/24/06 | E-Mail: Status Report on Certification of CY 2005 Data on AQS (P. Lorang) | |
06/16/06 | E-Mail: Raw Data Archive | |
05/31/06 | E-Mail: Changes in Parameter Codes Used to Report PM2.5 Continuous Monitor and Speciation Sampler Data to AQS
Attached technical note |
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05/25/06 | E-Mail: Guidance for the Annual Certification Process for 2005 calendar year ambient air data on AQS | |
03/03/06 | Email: AQS Moves to Oracle 10g; New URL | |
06/03/05 | Email: AQS Ready to Accept XML Data | |
05/11/05 | Email: System Upgrade to Create Precision Data | |
04/14/04 | AQS Documentation - Algorithms for calculating summary statistics now available on AQS TTN web page | |
03/31/04 | Certification of Air Quality Data on the Air Quality System (AQS) memo from Richard D. Scheffe, MQAD | |
03/23/04 | Use of AQSP&A in place of PARSV2 for reporting precision and accuracy data to AQS | |
02/18/04 | E-Mail: Change in AQS User Support and Password Resets | |
07/09/03 | E-Mail: Welcome to AQS Web | |
02/12/03 | E-Mail: User-Ids Being Revoked after One Year of "not" Logging into AQS | |
12/21/99 | Use of Collocated PM2.5 Data and Parameter Occurrence Codes (POCs) | |
01/07/99 | Security Related Informational Material for All AIRS Users |