Engineering and Expeditionary Warfare Center

Risk Assessment

NAVFAC Risk Assessment Workgroup (RAW)

Workgroup Objectives:

The Risk Assessment Work Group (RAW) was established as an advisory group to the Installation Restoration Managers and Remedial Project Managers (RPMs) to promote the efficient application of the human health and ecological risk assessment processes at NAVFAC sites. The ultimate purpose of RAW is to achieve protection of human health and the environment in a scientifically defensible, cost-effective and timely manner. This is accomplished through the promotion of information sharing and consistency among all members and various regulatory agencies, and providing technical support to Navy Ecological and Human Health Risk Assessors.

The Risk Assessment Work Group functions to achieve the following tasks as they relate to the Navy's ER program:
--Identify barriers that inhibit implementation of effective risk assessments and methodologies
--Propose policies, procedures, tools, methodologies and guidance for implementing sound risk assessments
--Share lessons learned, experiences and develop recommendations for the most efficient and cost effective approaches
--Serve as a resource to share information between risk assessors and RPMs within the Navy
--Perform evaluation of risk assessment regulations and obtain cross-agency perspective
--Promote the integration of both ecological and human health risk assessments throughout the environmental restoration process

Key RAW Focus Areas include:

1.      Guidance for Background Analysis, Vol IV – Vapor Intrusion Pathway (2011)

2.      Biomonitoring: Guide for the Use of Biological Endpoints in Monitoring Species, Habitats, and Projects (November 2007)

3.      Guidance for Habitat Restoration Monitoring: Framework for Monitoring Plan Development and Implementation (Aug 2004)

4.      Interim Guide for Assessing Sediment Transport at Navy Facilities (June 2004)

5.      Guidance for Background Analysis, Vol III – Groundwater  (Apr 2004)

6.      Development of a Standardized Approach for Assessing Potential Risks to Amphibians Exposed to Sediments and Hydric Soils Technical Guide (March 2004)

7.      EPA Environmental Monitoring Guidance Document for Superfund (Jan 2004) (Joint RAW/EPA effort)

8.      Guide for Incorporating Bioavailability Adjustments into HH and ERAs at US DoD Facilities – Part 1: Overview of Metals Bioavailability (Jun 2003)

9.      Guide for Incorporating Bioavailability Adjustments into HH and ERAs at US DoD Facilities – Part 2: Technical Background Document for Assessing Metals Bioavailability (Jun 2003)

10.   Watershed Contaminant Source Document Fact Sheet (March 2003)

11.   Implementation Guide for Assessing and Managing Contaminated Sediment at Navy Facilities (Feb 2003)

12.   Guidance for Background Analysis, Vol II - Sediments (Apr 2003) 

13.   Guidance for Background Analysis, Vol I - Soil (Apr 2002)

14.   Guide for Planning and Conducting Sediment Pore Water Toxicity Identification Evaluations (TIE) to Determine Causes of Acute Toxicity at Navy Aquatic Sites (Feb 2001)

 

 

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Resources

     Policy & Guidance            Publications             Related Sites    

 

 

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Policy and Guidance

Topics Title and Description Pages Size (KB)

Risk Assessment

Human Health

Policy

Navy Policy for Conducting Human Health Risk Assessments (HHRAs) Under the Environmental Restoration Program, CNO letter 5090 Ser N453E/1U595168 (12 February 2001)

This policy provides direction on how to conduct HHRAs. It describes a three-tiered HHRA approach with criteria for exiting the process. Use of the Navy’s tiered process will reduce the time and cost necessary for conducting HHRA under the Environmental Restoration Program while remaining consistent with the U.S. EPA’s Risk Assessment Guidance for Superfund (RAGS).

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Risk Assessment

Human Health

Guidance

U.S. Navy Human Health Risk Assessment Guidance (December 2008)

 

154 2777

Ecological Risk Assessment

Policy

Navy Policy for Conducting Ecological Risk Assessments, CNO 5090 Ser N453E/9U595355 (05 April 1999)

This policy provides the Navy's approach for implementing ERAs under the Navy Environmental Restoration Program and is fully consistent with the requirements of the U.S. Environmental Protection Agency (U.S. EPA) ERA guidance. It amplifies the 16 May 1997 ASN Environmental Policy Memorandum 97-04, Use of Ecological Risk Assessments. The goals of the policy are that ERAs conducted for the Navy are scientifically based, defensible, and conducted in a manner that is cost effective and protective of human health and the environment. The CNO policy applies to ERAs funded under Environmental Restoration, Navy (ER,N) and under Base Realignment and Closure (BRAC).

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Ecological Risk Assessment

CERCLA

DON Environmental Policy Memorandum 97-04: Use of Ecological Risk Assessment, ASN 5090 (16 May 1997)

The ASN (I&E) Policy Memorandum 97-04 identifies key issues and directions for ERAs within the Navy. This memorandum applies to environmental restoration activities performed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the Resource Conservation and Restoration Act (RCRA), and applicable state laws. The general directions of the policy memorandum are that ERAs need to be conducted in a manner that is consistent with and supportive of the remedial decision-making process. In particular, Navy RPMs need to ensure that proposed ERAs are designed to meet the specific regulatory requirements and needs for making a remedial decision.

5 15
Natural Resources Injury

CNO Policy on Natural Resources Injury and Damages in the Installation Restoration Program, CNO letter 5090 Ser N453E/1U595846 dated 21 December, 2001

The policy pertains to investigation of potentially impacted natural resources during the ERA process. It also discusses working with Natural Resource Trustees during the ERA process and selecting a response action that, to the extent practicable, will reduce the impacts to natural resources.

8 297
 

DUSD (ES) Interim Policy on Intergration of Natural Reources Injury Responsibilities and Environmental Restoration Activities, DUSD (ES) Memo dated 14 April 2000

This memorandum establishes an interim policy on the DoD Components’ responsibilities to address Natural Resource Injury (NRI) at sites administered by DoD where they are both a Natural Resource Trustee and the lead response agency for environmental restoration actions.

3 136
 

NAVFAC Guidance on Lead-Based Paint, NAVFAC Ltr 5090 Ser 13008.EV3-KB (31 January 2014)

 

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back to Resources

Publications

Topics Title and Description Pages Size (KB)
 

Dioxin - Questions & Answers, Tri-Service Environmental Risk Assessment Workgroup (February 2013)

Commonly asked questions about Dioxin are answered in this document.

7 103
 

Ecological Screening and COPC Refinement for Sediment, Soil, and Surface Water, NAVFAC Risk Assessment Workgroup Issue Paper (16 Feb 2012)

This issue paper is an updated version of the Risk Assessment Workgroup's paper on the Navy approach for developing the initial list of Contaminants of Potential Concern (COPCs) for ecological risk.

16 404
 

Ecological Risk Assessment - Reviewing Deliverables, NAVFAC Risk Assessment Workgroup Issue Paper (28 March 2012)

Provides RPMs with tools to help efficiently and effectively review ecological risk assessment (ERA) deliverables to ensure they meet Navy policy and the project objectives. It is a combination of the earlier Ecological Risk Assessment Standard Deliverables issue paper and the original Reviewing Ecological Risk Assessment Deliverables issue paper. Standard deliverables are discussed along with common issues in the ERA process and strategies RPMs can use to overcome them.

13 133
 

Assessing Non-Default Exposures in Human Health Risk Assessment (HHRA), NAVFAC Risk Assessment Workgroup Quick Reference Guide (28 April 2011)

This Reference Guide provides examples of non-default HHRA exposure scenarios and guidance so RPMs can recognize the types of exposure scenarios that may arise and when they may be applicable to their sites.

3 29
 

Demonstration and Certification of Amphibian Ecological Risk Assessment Protocol Final Report, NAVFAC ESC TR-2318-ENV (April 2009)

This document provides protocols developed under ESTCP for conducting ecological risk assessments (ERA) on amphibians. (ESTCP Project Number ER-0514)

11 7917
 

Biomonitoring: Guide for the Use of Biological Endpoints in Monitoring Species, Habitats, and Projects, NAVFAC ESC TR-2284-ENV (Nov 2007)

This guidance document presents a framework for using biological endpoints in monitoring species, habitats and projects associated with NERP sites undergoing remediation in compliance with CERCLA.

146 1018
 

Guidance for Habitat Restoration Monitoring: Framework for Monitoring Plan Development and Implementation, NAVFAC ESC UG-2061-ENV (August 2004)

 

130 4188
 

Guide for Incorporating Bioavailability Adjustments into Human Health and Ecological Risk Assessments at DoD Facilities Part 1: Overview of Metals Bioavailability, TSERAWG Update (June 2003)

The Navy developed a two-part Guide for Incorporating Bioavailability Adjustments into Human Health and Ecological Risk Assessments at DoD Facilities that was adopted by the Tri-service Environmental Risk Assessment Workgroup for use by all Services: A primer on the concept of bioavailability and how it can be used in determining risk levels.

89 825
 

Guide for Incorporating Bioavailability Adjustments into Human Health and Ecological Risk Assessments at DoD Facilities Part 2: Technical Background Document for Assessing Metals Bioavailability (includes Appendices), TSERAWG Update (June 2003)

Updated version of navy Bioavailability Guide dtd June 2000. Document has been updated and converted to a DoD guide.

56 1619
 

Integration of the Natural Resources and Installation Restoration Programs, Draft, NAVFAC ESC Report (1993)

Guidance to familiarize the Natural Resource Managers with the Installation Restoration Program

16 986
 

Example Approach for the Development of Site-Specific Preliminary Remediation Goals for Protection of Ecological and Human Health at Navy Aquatic Sites, NAVFAC ESC SP-2102-ENV (March 2001)

Case study demonstrating methodology for establishing preliminary remediation goals for sediment sites based on human health and ecological risk concerns.

96 2070
 

Risk Assessment Workgroup Brochure, NAVFAC (February, 2001)

Overview of the NAVFAC Human Health and EcoRisk Assessment Workgroup charter and current efforts.

2 379
 

Guidelines for Preparing Integrated Natural Resources Management Plans for Navy Installations, Navy (September 1998)

The document provides Navy natural resource managers with an interpretation of what processes are necessary to prepare integrated natural resources management plans (INRMP). An INRMP documents a planning process that draws from many disciplines and sources.

37 264
 

Risk Assessment Forum White Paper: Probabilistic Risk Assessment Methods and Case Studies, EPA Office of Science Advisor, EPA/100/R-14-004 (25 July 2014)

Probabilistic risk assessment (PRA) in its simplest form, is a group of techniques that incorporate uncertainty and variability into risk assessments. PRA provides estimates of the range and likelihood of a hazard, exposure, or risk, rather than a single point estimate. The goal of this paper is to explain how EPA can use probabilistic methods to address data, model, and scenario uncertainty and variability by capitalizing on the wide array of tools and methods that comprise PRA.

98 5326
       
  BACKGROUND    
 

NAVFAC Interim Final Guidance for Environmental Background Analysis Volume IV: Vapor Intrusion Pathway, NAVFAC UG-2091-ENV (April 2011)

Guidance on assessing potential background sources as a part of the assessment of the vapor intrusion pathway.

163 2521
 

NAVFAC Guidance for Environmental Background Analysis Volume III: Groundwater, NFESC UG-2059-ENV (April 2004)

Instructions for characterizing groundwater background conditions and comparing datasets for groundwater impacted by chemical release. The background analysis techniques presented are based on statistical methods and geochemical relationships.

203 2968
 

NAVFAC Guidance for Environmental Background Analysis Volume II: Sediment, NFESC UG-2054-ENV (April 2003)

Guidance document for calculating background concentrations at sediment sites.

241 5058
 

NAVFAC Guidance for Environmental Background Analysis Volume I: Soil, NFESC UG-2049-ENV (April, 2002)

This guidance document provides instructions for characterizing background conditions at sites where past uses of the property have resulted in actual or suspected chemical releases. Background analysis is necessary to identify background chemicals, those derived from natural or anthropogenic sources not related to activities conducted at the site, and to estimate the chemical concentration ranges that represent background conditions at the site

188 5923
 

Navy Policy on the Use of Background Chemical Levels CNO letter 5090 Ser N45C/N4U732212 (30 January, 2004 )

Navy policy on the use of background chemicals and eliminating them from the list of chemicals of potential concern (COPC).

6 428
       
  SEDIMENTS    
 

Contaminated Sediment: A User's Guide for Determining the Sources of Contaminants in Sediment, SSC Report 1907 (September 2003)

A Demonstration Study: Sources of PAH in Sediments in the Vicinity of Norfolk Naval Shipyard.

   
 

Sediment: Guide for Planning and Conducting Sediment Pore Water Toxicity Identification Evaluations (TIE) to Determine Causes of Acute Toxicity at Navy Aquatic Sites, NAVFAC ESC UG-2052-ENV (March 2003)

This guide provides info on determining applicability of Toxicity Identification Evaluation (TIE) at IR site; data requirements; SOPs for running the TIE, and how to do data analysis.

68 892
 

Sediment: Using Sediment Toxicity Identification Evaluations to Improve the Development of Remedial Goals for Aquatic Habitats, NAVFAC ESC SP-2132-ENV, (March, 2003)

Summarized the Toxicity Identification Evaluation (TIE) Guide (UG-2052-ENV) and provides information to RPMs on when to consider using TIEs within the IR process.

14 537
 

Sediment: Implementation Guide for Assessing and Managing Contaminated Sediment of Navy Facilities, NAVFAC ESC UG-2053-SED rev2  January 2005

This guide presents guidelines for conducting sediment site assessments and remedial alternative evaluations in the Navy's Environmental Restoration program.

294 20,867
       
  VAPOR INTRUSION    
 

Vapor Intrusion Mitigation in Construction of New Buildings, NAVFAC Fact Sheet (August 2011)

 

8 5337
 

Vapor Intrusion Mitigation in Existing Buildings, NAVFAC Fact Sheet (May 2011)

 

6 798
       
  OTHER RISK PUBLICATIONS    
 

2012-05--NAVFAC Asbestos Guidance and Frequently Asked Questions (FAQs 2) (17 May 2012)

 

18 366
 

Trichloroethene (TCE) Toxicitiy Values Fact Sheet, NAVFAC (March 2012)

This fact sheet reviews updated toxicity values for trichloroethene to be used in risk

1 25
 

Evaluation of Site-Specific Criteria for Determining Potability and Cleanup Goals for Impacted Groundwater, NAVFAC Risk Assessment Workgroup Issue Paper (16 Mar 2011)

This paper provides criteria for determining EPA's Groundwater Beneficial Use Classification in order to establish appropriate cleanup goals for groundwater sites.

11 311
 

DNAPL Management Overview Handbook, NAVFAC ESC TR-2315-ENV  (April 2007)

This handbook provides an introduction on how to manage DNAPL contamination at a site. Because DNAPL sites can be very challenging, this document focuses heavily on the limitations of characterizing and removing DNAPL and how to make realistic management decisions in the midst of these uncertainties.

17 933
Probabilistic Risk Assessment

Probabilistic Risk Assessment Methods and Case Studies-Risk Assessment Forum White Paper, EPA Office of Science Advisor, EPA/100/R-14-004 (25 July 2014)

Probabilistic risk assessment (PRA) in its simplest form, is a group of techniques that incorporate uncertainty and variability into risk assessments. PRA provides estimates of the range and likelihood of a hazard, exposure, or risk, rather than a single point estimate. The goal of this paper is to explain how EPA can use probabilistic methods to address data,  model, and scenario uncertainty and variability by capitalizing on the wide array of tools and methods that comprise PRA.

98 5326

radiation

risk assessment

Distribution of the "Radiation Risk Assessment at CERCLA Sites: Question & Answer", U.S. EPA Memorandum OSWER 9285.6-20 (13 June 2014)

This memorandum transmits the final guidance "Radiation Risk Assessment At CERCLA Sites: Q&A", replacing the 1999 version. The purpose of the guidance is to provide answers to commonly asked questions regarding risk assessemnt for radioactive contamination.

3 399

radiation

risk assessemnt

Radiation Risk Assessemnt at CERCLA Sites: Q & A, U.S. EPA OSRTI Guidance, Directive 9200.4-40, EPA 540-R-012-13 (May 2014)

The purpose of this EPA guidance from the Office of Superfund Remediation and Technology Innovation is to provide answers to commonly asked questions regarding risk assessemnt for radioactive contamination, superseding an earlier version issued in 1999 (EPA 1999a). It provides an overview of current EPA guidance for risk assessment and related topics for radioactively contaminated CERCLA remedial sites.  It provide answers to questions regarding risk assessments at radioactively contaminated CERCLA remedial action sites raised by Remedial Project Managers (RPMs), risk assessors, federal, state and local agencies, potentially responsible parties (PRPs), and contractors.

44 1899
Applicable or Relevant and Appropriate Requirement

Applicable or Relevant and Appropriate Requirements (ARARs) - Toolkit for Identifying, NAVFAC (August 2014)

ARARs are federal and state environmental or facility siting laws and regulations that are identified when evaluating CERCLA removal or remedial actions. ARARs must be established for CERCLA actions because CERCLA provides exemptions from some aspects of environmental laws and regulations for activities conducted entirely on-site. This Toolkit consists of eight graphical exhibits containing key information to aid in outlining the key concepts in identifying and documenting ARARs.

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