leads/ems data validation. 6 - 3 ips meteostar december 11, 2006 what is validation? from the...

LEADS/EMSLEADS/EMS

DATA VALIDATIONDATA VALIDATION

6 - 3 IPS MeteoStarDecember 11, 2006

WHAT IS VALIDATION?

From The Dictionary:

1a. To Make Legally Valid

1b. To Grant Official Sanction By Marking

• Validation Using LEADS Is A Process Of Data Review Followed By An Actual Marking Of The Data As Validated

• The Act Of Validating Data Is Restricted To Only Certain User Classes

• There Is An Automatic Audit Trail Entry Generated Every Time Data Is Validated


Data Validation Is Required By Federal Regulations:

Air Quality Data Submitted For Each Reporting Period Must Be Edited, Validated, And Entered Into The AIRS-AQS For Updating Pursuant To Appropriate AIRS-AQS Procedures.

~ 40 CFR 58.35

WHY BOTHER WITH VALIDATION?


VALIDATING DATA

• The Actual Act Of Validating Data With The Manual

Validation Interface Is Almost Trivial

• What Is Difficult Is Gathering All Of The Background And

Supporting Information That Allows The Data Validator To

Validate Data With Confidence

• This Has To Be A Collaborative Effort Between Everyone

Involved – Field Operators, QA Staff, Maintenance

Personnel, And Data Validators


• Validate NAMS/SLAMS Data Using Available Data Screens

And Reports

• Provide Technical Support On Data Management Issues That

May Arise

• Document All Data Management Activities

• Receive, Process, And Send All Network Data To The EPA

AIRS Database

• Prepare NAMS/SLAMS Data Summaries

• Prepare Annual SLAMS Certification For EPA

VALIDATOR RESPONSIBILITIES


• If Any Unusual Or Nonstandard Conditions Are Noticed By The

Field Operator, They Should Enter Any Pertinent Information In

The Electronic Operator Log

Then…

• Validators Review The Ambient Data, Electronic Logs,

Automatic Checks, And Quality Control Records To Determine

If There Is A Reason To Invalidate The Data

OPERATORS AND VALIDATORS


How Can You Get The Highest Data Return Possible?

1. Field Operators Record Everything They Do That Might Affect

The Monitors In The Operator Log

2. Everyone Know And Follow The QAPP, SOPs, And Other

Training Materials

3. Maintain A Station Inventory And Keep The System

Configuration Up-To-Date

HIGHEST DATA RETURN


• Operators Should Make A Log Entry Every Time They Do

Something At The Station – Including Just A Short “Well

Station” Visit

• Record Any PMI’s That Are Performed

• Record Any Pertinent Instrument Readings (Status, Mode, Etc.)

• Record The Cause Of Monitor Malfunctions And Automatic

Check Failures And What Was Done To Correct The Problem

• Record Whether Monthly Or Quarterly Audits And Verifications

Pass Or Fail – Include The Percentages

EFFECTIVE OPERATOR LOGS


• Keep The Station Temperature Within The Established Limits –

Both Upper And Lower

• Monitor The Sites Closely – Do Not Let Instruments Drift Until

There Is A Failure

• Keep Communications Between The Field And The Data

Validator(s) Open

• Be Pro-Active And Aggressive In Isolating And Resolving

Problems And Issues – If A Problem Is Causing A Loss Of

Data, It Must Be Addressed With The Highest Priority

SITE OPERATION STRATEGIES


• Establish A Quality Assurance Project Plan

• Develop And Implement Standard Operating Procedures

• Train Everyone On The QAPP And SOP’s

• Use The Quarterly (Or However Frequently The QAPP Calls For

Them) Audit Visits To Each Site To Verify That The QAPP And

SOP’s Are Being Used At Each Site

• Everyone Use The LEADS Tools – Including The Web Pages

And Manual Validation

STRATEGIES FOR SUCCESS


• Data Validation Is Dependent Upon The Correct QA And QC

Methods Having Been Complied With And The Validator

Notified

• If An Instrument Fails An Audit, The Data Collected Since The

Previous Audit May Be Invalid

DID YOU KNOW?


• If The Calibrator Is The Cause Of An Automatic Check Failure,

That The Data Is Likely To Be Recoverable?

• Make An Entry In The Operator Log To Let The Data Validator

Know What Happened!

DID YOU KNOW?


• An Equipment Problem Is Often First Evident In The 5 Minute

Data

• Data Is Compared Between Nearby Sites, And With Same-site

Parameters Which Correlate Inversely Or Proportionally

DID YOU KNOW?


FINI

This Concludes Data Validation

leads/ems data validation. 6 - 3 ips meteostar december 11, 2006 what is validation? from the...

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