Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Air Quality System (AQS)
  3. All Manuals and Guides
  4. User Guide

On-Line Data Tools - QA

Maintain Cylinder

screenshot of the maintain cylinder form in AQS with select fields highlighted

This is found under the Maintain section on the Menu Bar then select Cylinder.  It provides the ability to directly view, enter or edit cylinder data in the database for the selected screening group.  This form is optional by SLTs, but EPA highly encourages usage as soon as possible.  Monitoring programs that use this form are considered by OAQPS as meeting their annual EPA Protocol Gas reporting requirements and no longer need to participate in the annual AA-PGVP survey.  This form documents the EPA Protocol Gas Cylinder Standards used in the NAAQS monitoring networks.

  1. Producer ID [also known as Protocol Gas Verification Program ID (PGVP ID)] is validated against EPA approved Specialty Gas Producers and Certifiers of EPA Protocol Gas Standards.  Valid producer IDs are managed internally by OAQPS through the Maintain Cylinder form.
  2. Cylinder ID is the serial number of the cylinder assigned by the manufacturer
  3. Certification Date is the date the cylinder is certified by its manufacturer to contain the specified concentration of the gas identified by the Parameter Code.  The Expiration Date is the date after which the cylinder gas concentration is no longer certified to by within the tolerance limits of the cylinder certified concentration.

Maintain - 1-Point QC

The 1-Point QC form (Maintain -> QA Assessments -> 1-Point QC) is used to enter or edit all 1-point quality control check data for a monitor.

screenshot of the 1 point qc form and highlighted fields in aqs
  1. The User will fill out the values that will be used to query records.
  2. Execute the query using the parameters filled out above.
  3. Query results will be returned here.  The user may add, delete or edit records here.
  4. New:  Producer ID and Cylinder ID are now displayed where present in the database.  The Producer ID is a unique identifier of the organization that produced the cylinder being assessed.  The Cylinder ID is the unique identifier (e.g. serial number) of the gas cylinder being assessed.
  5. Click the Save icon.

Maintain - QA Annual Performance Evaluation

The Annual Performance Evaluation form (Maintain -> QA Assessments -> Annual Performance Evaluation) is used to enter or edit all annual performance data for a monitor.

screenshot of the annual performance evaluation form in AQS with select fields highlighted
  1. On this form, users may query annual performance evaluations for a monitor during a specified date range.
  2. All Annual Performance Evaluations for the queried fields.  Users can edit or add performance evaluation data in this section.  Individual evaluations are displayed on each line.
  3. New:  Cylinder PGVP ID and Cylinder ID are now present when provided.  The Cylinder PGVP ID is a unique identifier of the organization that produced the cylinder being assessed.  The Cylinder ID is the unique identifier (e.g. serial number) of the gas cylinder being assessed.

Previous  |  Next

Air Quality System (AQS)

  • AQS User Support
    • New User Registration
    • Training
    • Events Calendar
    • Java Memo
  • All Manuals and Guides
    • User Guide
      • AQS at a Glance
      • ENSC at a Glance
      • Logging On
      • Site ID Format
      • Batch Submission - Overview
      • Batch Submission - Using the ENSC
      • Batch Submission - Loading Using AQS
      • Batch Submission - Type of Data
      • Correct - Overview
      • Correct - Raw Data
      • Correct - 1-PT QC
      • Maintain - Overview
      • Maintain - Site
      • Maintain - Monitor
      • Maintain - Adding Events
      • Maintain - QA
      • Setting Up Samplers
      • Data Reports
      • CA Dump Bucket
      • Logging Off and Additional Info
    • Code Lists
    • Data Dictionary
    • Data Coding Manual
    • AQS Primer
    • AQS Frequent Questions
  • Related Resources
    • Monitoring and Policy Memos
    • AQS Pollutant Memos
    • Quality Assurance and Audits Memos
  • Archive Data
  • Obtaining AQS Data
    • API
    • About AQS Datamart
    • Pre-Generated Data
AQS Contact Us
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on December 17, 2024
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.