site assessment - moving to the future and getting better ......moderator: sabrina forrest us epa...
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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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CO
LOR
ADO
BLV
D
SO
UTH
HO
LLY
ST
MO
NA
CO
PKW
Y
JEWELL AVE
E FLORIDA AVE
MISSISSIPPI AVE
LOUISIANA
CHERRY CREEK
CDOTMTL SITE
CDOTPLUME
REDFIELDSITE
REDFIELDPLUME
STUDY AREA
0 0.5 Miles
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.