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March 2008

In This Issue
Managing Regulatory Agency Oversight Costs
USEPA Risk Assessments for Nanomaterials
New Pollutants or Old? Pharmaceuticals in Drinking Water
New ASTM Standard for Vapor Intrusion
Changes in California Environmental Cleanup Procedures
 
JWI Adds LEED to Our Sustainability and CSR Services
 
JWI is increasing our Corporate Social Responsibility (CSR) services by adding LEED AP accreditation for several of our employees.  LEED stands for Leadership in Energy and Environmental Design. LEED is a comprehensive program for sustainable development that was developed by the U.S. Green Building Council (USGBC).  JWI is a member of the USGBC; selected staff of JWI are pursuing LEED AP accreditation, which we expect to complete in May of this year.  We will keep you posted on our services in this area.

USGBC Member Logo 
The USGBC Member Logo is a trademark owned by the U.S. Green Building Council and is used by permission.
 

Paul Nuti, P.E. Joins JWI

JWI is pleased to announce that Paul Nuti, P.E. has joined our company.  Paul is a registered Professional Engineer in Civil Engineering with over 14 years of experience in the environmental industry, with particular expertise in solid waste management.

 
At JWI, Paul is developing our solid waste and recycling practice areas, in addition to handling our traditional environmental services projects.  Paul brings a wealth of engineering experience to JWI, and we look forward to discussing opportunities for him to assist you with your projects.
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Johnson Wright, Inc.
3687 Mt. Diablo Blvd.
Suite 330
Lafayette, CA
(925) 403-6200
 
Managing Regulatory Agency Oversight Costs 
 
A cost element for contaminated sites that is often overlooked or not challenged by review is the regulatory oversight cost.  Depending on several factors such as the complexity of the site, the financial status of the potentially responsible parties (PRPs), and the agency's scope of oversight, the regulatory oversight costs can be as much as 20% of the total site investigation and remediation costs.  Given that regulatory agencies will be involved with a site cleanup from start to finish, these costs can be significant.  For example, at Superfund sites where both the United States Environmental Protection Agency (USEPA) and state regulators are overseeing the activities of the PRPs, these costs can easily reach $500,000.
 

FULL ARTICLE >>
 
USEPA Risk Assessments for Nanomaterials
 
Nanotechnology refers broadly to the science of fabricating chemical devices that are 100 nanoparticlenanometers or smaller.  By way of illustration, a sheet of paper is approximately 100,000 nanometers thick, or 1,000 times the size of the largest nanomaterial.  The United States Environmental Protection Agency and the National Institute of Environmental Health Sciences are working on the development of methods to quickly screen nanomaterials to identify hazards that warrant further scrutiny. Nanoscience and nanotechnology are relatively new, but already nanoparticles made from C60 (Buckminster fullerenes or "buckyballs") are finding potential applications in consumer products ranging from car lubricants to cosmetics and medicines. 
New Pollutants or Old?
Pharmaceuticals in Drinking Water
 
A recent news series by the Associated Press (AP) reported the discovery of pharmaceuticals in pharmaceuticalsmunicipal drinking water.  The pharmaceuticals included antibiotics, anti-convulsants, mood stabilizers and hormones.  The reported concentrations of these pharmaceuticals in municipal drinking water were measured in quantities of parts per billion or parts per trillion, which are far below the levels of a medical dose.  Although pharmaceuticals have been previously detected in our waterways, new advanced technologies have been developed that can detect concentrations measured at the levels of parts per billion or parts per trillion.
New ASTM Standard for Vapor Intrusion 
 

An international standards organization has approved a new standard for assessment of toxic vapor intrusion into buildings.  ASTM International approved the new standard, E  - 2600, Practice for Assessment of Vapor Intrusion into Structures on Property Involved in Real Estate Transactions, which provides guidance for vapor intrusion testing.  According to ASTM the specific intent of the standard is to establish a methodology to determine whether or not there is a reasonable probability that vapor intrusion could present an environmental risk and liability.  Additionally, for commercial real estate transactions the vapor intrusion investigation could be used independently or in conjunction with the existing ASTM standard for conducting Phase I Environmental Site Assessments.

 

The vapor intrusion evaluation process in the new ASTM standard consists of four tiers. The first two (Tier 1/Tier 2) are "screening tiers" which are used to assess the potential for a vapor intrusion concern to exist, so that properties with a low risk can be screened out quickly and inexpensively. The third tier provides for more site-specific and comprehensive investigations if the potential for vapor intrusion cannot reasonably be eliminated at the Tier 1/Tier 2 levels.  Tier 4 addresses vapor intrusion mitigation alternatives.  The process described in the ASTM standard is designed to complement existing Federal and state vapor intrusion policies or guidance.

 
ASTM is a voluntary standards development organization of over 30,000 technical experts representing producers, users, consumers, government and academia from over 120 countries.  ASTM is not a regulatory or governmental organization.   As such the standards developed by ASTM are not regulatory standards, but are often incorporated into the standard of practice in the environmental industry.
 
Changes in California Environmental Cleanup Procedures 

In California, the Department of Toxic Substances Control (DTSC) is one of the agencies that is responsible for direction and oversight of environmental cleanup actions.  At a recent industry conference, the Chief of the Site Cleanup Unit for DTSC described some of the changes in the way that DTSC plans to oversee cleanup of contaminated sites.  DTSC's Site Cleanup Program, which is responsible for oversight of the investigation and remediation of hundreds of contaminated sites in California, is changing their focus to accelerating cleanup by streamlining document review, developing presumptive remedy guidance documents to eliminate the Feasibility Study (FS) step, and holding initial project scoping meetings to reduce document review and negotiation time during cleanup.  Vapor intrusion continues to be one of the biggest concerns raised by DTSC from a public health protection perspective.  DTSC is in the process of revising its guidance document on vapor intrusion to address concerns with data quality and sample collection methodologies.  Overall, DTSC's Site Cleanup Unit is making a concerted effort to develop a more uniform and consistent oversight approach among various regional offices/branches in California.  There is also a big push to make site documents available via the internet.  Technical and regulatory documents for contaminated sites that are regulated by DTSC can be found at http://www.envirostor.dtsc.ca.gov/public/.

Johnson Wright, Inc. | 3687 Mt. Diablo Boulevard | Suite 330 | Lafayette | CA | 94549