Environmental Law Resources on the Web
1. EPA Sites
EPA Home Page www.epa.gov
EPA’s Superfund Home Page www.epa.gov/superfund/
of Decision site.
Searches can be
conducted by state, county, or site name.
Brownfields Home Page www.epa.gov/swerosps/bf/
policy statements and a good FAQ page regarding Brownfields are provided.
Toxic Release Inventory Page www.epa.gov/tri/
A Phase I Inventory of Current EPA Efforts to Protect Ecosystems
EPA’s Air Facility Subsystem (AFS) (formerly AIRS) www.epa.gov/Compliance/planning/data/air/afssystem.html
The Air Facility Subsystem (AFS) contains compliance and permit data for stationary sources regulated by the U.S. EPA and state and local air pollution agencies. AFS is used by some state and local government agencies to track permit data.
EPA’s AirData web site for air monitoring. www.epa.gov/air/data/
The AirData Web site gives you access to air pollution data for the entire United States.
National Primary Drinking Water Regulations
National Primary Drinking Water Regulations (NPDWRs or primary standards) are
legally enforceable standards that apply to public water systems.
Model CERCLA Section 107 Agreement for Recovery of Past Response
Model CERCLA Section 122(h)(1) Agreement for Recovery of Past
Response Costs www.usdoj.gov/enrd/122h1.htm
Policy on the Issuance of Comfort/Status Letters
The “Policy on the Issuance of
Comfort/Status Letters” is designed primarily to assist parties who seek to
cleanup and reuse brownfields.
An interactive map of the United States
is featured on this site. Selecting a given state generates a list of each site
in that state. HazDat was developed to provide information on Superfund sites
and the hazardous substances released from those sites. Information available
in HazDat includes site characteristics, activities and site events and
contaminants found. HazDat also contains data from the U.S. Environmental
Protection Agency (EPA) Comprehensive Environmental Response, Compensation, and
Liability Information System (CERCLIS) database, including the CERCLIS number,
site description and site latitude and longitude.
This EPA relational database
integrates data from four EPA program systems: permit compliance system (PCS),
CERCLIS, TRIS, and RCRIS. It is probably the best single environmental data
EPA’s Chemical Registry System.
Chemical Registry System (CRS) provides information on chemical substances and
how they are represented in the Environmental Protection Agency (EPA)
regulations and data systems.
EPA Region 3 Hazardous Risk Assessment.
www.epa.gov/reg3hwmd/risk/index.htm This is the EPA’s version of a
RBCA-style ranking of hazardous risks. Use at your own risk as it is still
2. Additional Federal Sources
ATSDR ToxFaq www.atsdr.cdc.gov/toxfaq.html
The ATSDR ToxFAQsTM is a series of summaries about hazardous substances
developed by the ATSDR Division of Toxicology. Information for this series is
excerpted from the ATSDR Toxicological Profiles and Public Health Statements.
Each fact sheet serves as a quick and easy to understand guide. Answers are provided
to the most frequently asked questions (FAQs) about exposure to hazardous substances
found around hazardous waste sites and the effects of exposure on human health.
ATSDR Minimal Risk Levels (MRLs)for Hazardous Substances www.atsdr.cdc.gov/mrls.html
An MRL is an estimate of the daily human exposure to a hazardous substance that is
likely to be without appreciable risk of adverse noncancer health effects over a specified
duration of exposure. These substance-specific estimates, which are intended to serve as
screening levels, are used by ATSDR health assessors and other responders to identify
potential health effects that may be of concern at hazardous waste sites.
ATSDR Toxicological Profile Information Sheet www.atsdr.cdc.gov/toxpro2.html
ATSDR produces “toxicological profiles” for hazardous substances found at National
Priorities List (NPL) sites. These hazardous substances are ranked based on frequency
of occurrence at NPL sites,
toxicity, and potential for human exposure.
Federal Register Environmental Subset
text of selected Federal Register documents regarding the environment or
environmental issues are included here. These documents are posted daily to the
EPA’s gopher and web servers. The Environmental Subset provides coverage from
October 1, 1994 through the present organized by year, month, and day.
FedWorld Information Network
FedWorld has extensive links to almost every
publicly-accessible federal database. This is a product of the National
Technical Information Service (NTIS) operated by the U.S. Department of
Office of Surface Mining http://www.osmre.gov/
U. S. Geological Survey http://www.usgs.gov/
USGS is the nation’s
largest earth science research and information agency. USGS maps are available
from the site.
3. Iowa Sources
Iowa Geological Survey Bureau
Iowa Geographic Map Server komodo.gis.iastate.edu/new_site/
entire state of Iowa can be viewed in aerial photographs, USGS maps, and other
maps at 2 meter resolution. ISU is rapidly supplementing the older black and
white aerial photographs from the early to mid-1990s with color infrared 2
meter photos, beginning with cities.
Iowa PROfiles City-by-County Index
For population and economic data
on Iowa cities and counties or for help in submitting applications for
Brownfields projects, this site is very good.
Iowa Department of Natural Resources (IDNR)
IDNR Environmental Protection Division
IDNR Animal Feeding Operations Unit
IDNR Water Quality Bureau
IDNR Air Quality Bureau
IDNR Energy and Geological Resources Division of the Geological
Survey Bureau www.igsb.uiowa.edu/
Code of Iowa.
4. Other Sources
American Society for Testing and Materials Web Site
ASTM provides a source
of engineering standards commonly used in many environmental audits.
CDMS, Inc. AgChem MSDS and label information.
CDMS is a privately held corporation
located in Marysville, CA. Founded in 1983, the company provides America’s
premier software service to access crop protection product label, MSDS, WPS and
University of Pittsburgh School of Law Environmental web site
entitled: Hazardous Substances and Hazardous Waste.
This web site has a comprehensive list of RCRA related web resources.
The material contained in this web page is not intended to be a definitive analysis of the subjects
discussed. The reader is cautioned that neither the section nor its members intend that reliance be
placed upon these materials in advising your clients without confirming independent