# Presentation: 868724

## Module 2: Overview of Site Assessment and Remedial Action Process

**Module 2: Overview of Site Assessment and Remedial Action Process**

**5**

**4**

**3**

**1**

**2**

**2**

**Overview of Site Assessment and Remedial Action Process**

**Notes:**
Emphasize that AAI is a tool for advancing Brownfield redevelopment and just one of many steps in the overall process.

POINT OUT THAT SITE ASSESSMENT and REMEDIAITON PROCESS CAN INCLUDE MANY DIFFERENT STAGES, AND AAI FOCUSES ON JUST THE INITIAL STAGE. 

PARTICIPANTS SHOULD BE AWARE OF THE OTHER STAGES, BECAUSE AT SOME BROWNFIELDS SITE, THESE OTHER PHASES MAY HAVE ALREADY BEEN PERFORMED, SO GRANT REVIEWERS MAY COME ACROSS DOCUMENTATION FROM THESE OTHER PHASES

## Overview of Site Assessment and Remedial Action Process

**Overview of Site Assessment and Remedial Action Process**

## Overview of Site Assessment and Remedial Action Process

**Overview of Site Assessment and Remedial Action Process**

- Transaction Screen
- Phase I ESA
- Phase II ESA
- Feasibility Studies
- Remedial Actions

## Transaction Screen

**Transaction Screen**

- Less comprehensive in scope than Phase I ESA
- Prospective buyer has reason to believe that no adverse environmental conditions exist at the property
- Does not comply with AAI; no CERCLA liability protection
- ASTM E 1528-06 *Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process*

## Phase I ESA or All Appropriate Inquiries (AAI)

**Phase I ESA or All Appropriate Inquiries (AAI)**

- Initial assessment of a site to identify potential presence of environmental contamination
*AKA: Environmental due diligence and *“all appropriate inquiries”
- Real estate transactions, site discovery, CERCLA liability protection, Brownfields grants, assess business environmental risk concerns
- ASTM *Standard Practice for Environmental Site Assessment: Phase I Environmental Site Assessment Process*” (E1527-97, 00, 05)
- Does not _delineate_ contamination or quantify risk

## Phase I ESA Non-Scope Considerations

**Phase I ESA Non-Scope Considerations**

- Asbestos
- Radon
- Lead-based paints
- Wetlands
- Regulatory compliance
- Cultural and historic resources
- Air emissions

- Industrial hygiene
- Heath and safety
- Ecological resources
- Endangered species
- Indoor air quality
- Biological agents
- Mold
- Noise

## Phase II ESA

**Phase II ESA**

- Sampling of media – soil, ground water, sediment, surface water, air
- Chemical analysis - quantify types and magnitude of contaminants
- Define the nature and extent of contamination
- Quantify risk to receptors
- Comparison to relevant criteria to determine need for cleanup or risk management

## Feasibility/Treatability Studies

**Feasibility/Treatability Studies**

- Feasibility Studies
- Develop Remedial Action Objectives (RAO)
- Identify applicable regulatory requirements
- Evaluation of remedial alternatives against
- Effectiveness, implementability, cost, etc.
- Treatability Studies
- Bench, pilot, or field-scale testing of different remedial alternatives or processes
- Help design full-scale remedy

**Notes:**
Threshold and balancing criteria

## Remedial Actions

**Remedial Actions**

- Interim Removal Actions
- Corrective Action (RCRA)
- Record of Decision (CERCLA)
- State or Voluntary Cleanup Program Actions
- Risk-Based Corrective Action (RBCA)