site assessment - moving to the future and getting better ......moderator: sabrina forrest us epa...

Site Assessment – Moving to the Future and Getting Better

The Triad Approach

Moderator: SABRINA FORREST US EPA Region VIII Site Assessment & Brownfields Manager

NSAS June 21, 2007

URSOPERATING SERVICES, INC.

The Triad ApproachDEANA CRUMBLING – US EPA OSRTI Technology

Integration and Field Services Division

STEPHEN DYMENT - US EPA OSRTI Technology Integration and Field Services Division

BEV HALWA – UOS, START3 Region VIII Contractor

BRENDA COOK – US EPA Region VI NPL Coordinator

KRISTINE LLOYD – E&E, EPA Region VI Contractor

Moving …and Getting Better

• Collecting data for multiple agencies or groups

• Site reassessment– Questions of data relevance and quality– Missing information– Few sample locations from which to make a

decision– Incomparable data for updated benchmarks

or action levels

URSOPERATING SERVICES, INC.

The Triad Approach

You can SAFELY test the waters

URSOPERATING SERVICES, INC.

Moving…and Getting Better

3 legs of Triad are a solid framework

Don’t need to cannonball in

URSOPERATING SERVICES, INC.

www.triadcentral.org

Get

Mor

e In

fo!!

TO THE EXTENT THETRIAD APPROACH

IS IMPLEMENTED AT A SITE,THE BENEFITS

WILL BE EXPERIENCED

URSOPERATING SERVICES, INC.

Data Quality ObjectivesData Quality Objectives

1. State the Problem2. Identify the Decision3. Identify the Inputs to the Decision4. Define the Boundaries of the Study5. Develop a Decision Rule6. Specify Tolerable Limits on Decision Errors7. Optimize the Design for Obtaining Data

URSOPERATING SERVICES, INC.

Implementing The Triad Implementing The Triad ApproachApproach

• Team development of the CSM and project strategy can be challenging but is integral to a Triad success.

URSOPERATING SERVICES, INC.

Potential Team MembersEPA

Federal Agencies

State Agencies

County Agencies

City Agencies

Tribes

Property Owner

Consultants

Watershed Groups

Community Coalitions

Potential Team Members

Potential Team MembersPotential Team Members• EPA Site Assessment Manager• Contractor Project Manager• QA/QA Officer• Chemist• Statistician• Risk Assessor• Data Management/GIS/GPS Specialist• Geologist• Hydrogeologist• Physicist• Engineer• Public Affairs Specialist• Lawyer URS

OPERATING SERVICES INC

Martha Rose/Walsh Smelter Site

Conceptual Site Model

Implementing the Implementing the Triad ApproachTriad Approach

• Statistics aren’t always necessary to achieve site assessment goals.

URSOPERATING SERVICES, INC.

• Terrible mine gravel piles here

• Photo of dog kennels

• Ross incinerator photo

Implementing the Implementing the Triad ApproachTriad Approach

• The Data Quality Objective process can be used to achieve a desired confidence level without previous analytical data.

URSOPERATING SERVICES, INC.

• Photo of Corky auguring

Implementing the Implementing the Triad ApproachTriad Approach

• Dynamic work strategies to adapt work activities based on real-time data can reduce the project budget.

URSOPERATING SERVICES, INC.

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Implementing the Implementing the Triad ApproachTriad Approach

• The Triad includes unique QA/QC components.

URSOPERATING SERVICES, INC.

QC Performed

QC Criteria

Met

Quality Decision Quality or

Screening Quality

Yes Yes Known Decision Quality Data

Yes No Known Depends on Site DQOs

No N/A Unknown Screening Quality Data

TO THE EXTENT THETRIAD APPROACH

IS IMPLEMENTED AT A SITE,THE BENEFITS

WILL BE EXPERIENED

URSOPERATING SERVICES, INC.