EPA Inspector General Audit Report:
Region 9 Superfund DQO's, Sept 1998
Office of Inspector General
Audit Report
Report on Environmental Data Quality at Superfund Removal Actions
in Region 9
E1SFF7-09-0058-8100223
September 4, 1998
Summary:
The purpose of the audit was to determine if Region
9 had sufficient procedures in place to ensure that environmental data
was of known and acceptable quality for Superfund removal actions. The
audit of five removal actions showed Region 9 did not have sufficient
procedures over Superfund removal actions to ensure that environmental
data was of known and acceptable quality. Also, the Region did not fully
use EPA's scientific planning process, called data quality objectives,
to ensure its removal actions and corresponding data collection activities
were effective and efficient. This audit is also part of a national
audit of field sampling. Accordingly, the results of this audit will
also be included in a national audit report, to be issued in 1998.
Viewing the Report:
EPA Office of the Inspector General HQs has this
audit report on the web. Here is the pdf of the report complete with
pictures. It can be read with Adobe Acrobat Reader. (See
attached file: 8100223.pdf)
The report (as well as other EPA IG Audit reports) can also be viewed
on the EPA
IG Web Site: http://www.epa.gov/oigearth/list998.htm
Hanford DQO Approach is recommended
See Chapter 2 on DQOs; note the recommendation to
the EPA Regional Administrator to use/adopt the Hanford (Environmental
Restoration Contractor [ERC]) methodology for implementing the 7-Step
DQO Process, including attaching the ERC
DQO Implementation Process Flow Chart as APPENDIX F: Hanford's "Best
Practice" for Data Quality Objectives in the report.
Excerpts From the report:
- Page 29: Underlying Principles of DQOs
- All collected data have error.
- Nobody can afford absolute certainty.
- The DQO process defines tolerable error rates.
- Absent DQOs, decisions are uninformed.
- Page 29: The DQO process is a systematic,
scientific method to establish data quality criteria and performance
specifications for decision making. The DQO process was developed
by EPA to:
- Help define specific questions that an environmental
project is intended to answer;
- Identify the decisions that will be made
when using the resulting data;
- Define the allowable risk of decision errors
in specific and quantifiable terms; and,
- Optimize the design of data collection.
The DQO process provides two primary
benefits:
- Better decisions, because they are based
on the scientific method and decision error is
reduced.
- More cost effective data collection efforts,
because managers focus on the quantity and
quality of data needed for decisions.
- Page 31: Why DQOs Were Not Used
- DQOs were not considered mandatory.
- Lack of DQO training and experience.
- Perception that DQOs were not practical.
- Process to support DQOs not in place.
- Page 33: Changes Needed to Support DQO Process
- Require DQOs
- Set training requirements
- Use a team approach
- Designate facilitators
- Page 33: BEST PRACTICES
The U.S. Department of Energy seems
to have been particularly successful implementing the DQO process.
It should be noted that Energy has required the use of the DQO process
at its environmental projects and operations. The Department of
Energy sponsors a DQO Internet "web" site that explains
the DQO process, provides case studies of lessons learned and cost
savings, and identifies DQO resources. The address is http://dqo.pnl.gov/.
Our audit of Laboratory Data Quality at Federal Facility Superfund
Sites, issued in March 1997, found that the Hanford Nuclear Reservation
had developed an effective DQO implementation procedure. This procedure,
shown
at Appendix F, involves key decision makers in the development
of objectives. The Region should consider implementing many aspects
of this procedure. A key part of Hanford's DQO process was the use
of a facilitator. The facilitator can assist by fostering communication
among planning team members and adding objectivity to the decision
making process. The facilitator should have a broad range of technical
and regulatory expertise and experience in making focused decisions.
- Page 34: RECOMMENDATIONS
We recommend that the Regional Administrator:
- Require on-scene coordinators to develop DQOs
for all removal actions.
- Establish a minimum mandatory training requirement
for DQOs for all regional personnel whose duties involve the collection,
evaluation, or use of environmental data.
- Require on-scene coordinators to attend DQO
training.
- Use a graded or pro-forma approach to develop
DQOs depending upon the scope and complexity of the project.
- Use a team approach to develop DQOs. The team
should include QA specialists, samplers, chemists, project managers,
risk assessors, toxicologists, data users and statisticians.
- Designate a DQO facilitator to assist and coordinate
team members through the DQO process.
For more information on the DQO Implementation
Process contact:
Sebastian Tindall
QE3C
PO Box 1389
Richland, WA 99352
(509) 845-7078
qe3c@owt.com
http://www.hanford.gov/dqo
For more information the audit report, call:
Katherine Thompson
Auditor in Charge
U.S. EPA Office of the Inspector General
Sacramento, CA
(916) 498-6535
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