USEPA (United States Environmental Protection Agency)

    Homepage                                        http://www.epa.gov/

    Laws & Regulations                       http://www.epa.gov/epahome/laws.htm 

    Sewage Sludge (Biosolids) Regulation  

                Background to Biosolids   http://www.epa.gov/region8/water/biosolids/

    Test methods: FAQ’s                       http://www.epa.gov/epaoswer/hazwaste/test/faqs.htm

    Intergrated Risk Information System (IRIS) http://www.epa.gov/iriswebp/iris/index.html

    National Primary Drinking Water Standard  http://www.epa.gov/safewater/mcl.htm

     POPs  Persistent Organic Pollutants     http://www.epa.gov/oppfead1/international/pops.htm

    BIOSCREEN   Groundwater contaminantion model      http://www.epa.gov/ada/csmos/models/bioscrn.html

    Waste Handling, Recyling and Disposal              http://www.epa.gov/epawaste/index.htm

                Hazardous WasteRules                           http://www.epa.gov/epawaste/hazard/index.htm
 

REMEDIATION TECHNOLOGIES

    The Groundwater Remediation Technologies Analysis Center     http://www.gwrtac.org/

    EPA REACH IT,  EPA's Technology Innovation Office        http://www.epareachit.org/

    Remediation Technologies Development Forum                    http://www.rtdf.org/

    Hazardous Waste Clean-up Information Web Site                http://www.clu-in.org/
 
 

NATIONAL LIBRARY OF HEALTH

    Toxicology Tutor                      http://www.sis.nlm.nih.gov/Tox/ToxTutor.html
 

    A Journalist's Handbook on Environmental Risk Assessment
                                                          
        Risk Assessment Basics  http://ruby.fgcu.edu/Courses/Twimberley/IDS3920/main.html

ATSDR (Agency for Toxic Substances and Disease Registry)

    Homepage                                        http://www.atsdr.cdc.gov/

    Toxic FAQ’s                                     http://www.atsdr.cdc.gov/toxfaq.html

    Minimal Risk Levels (MRLs)            http://www.atsdr.cdc.gov/mrls/index.html
        for Hazardous Substances
 

MPCA (Minnesota Pollution Control Agency)

    Homepage                                         http://www.pca.state.mn.us

    Regulations                                        http://www.pca.state.mn.us/rulesregs/index.html

    State-by-state Comparison of Animal Manure Regulations
                                                               http://www.pca.state.mn.us/hot/fl-statecomp.html

    Feedlot Homepage                             http://www.pca.state.mn.us/hot/feedlots.html

    Leaking Underground Storage Tank (LUST) Program
                                                               http://www.pca.state.mn.us/programs/lust_p.html

    Site Index                                           http://www.pca.state.mn.us/siteindex.html

    Risk Assessment                             http://www.pca.state.mn.us/cleanup/riskbasedoc.html

    Natural Attenuation                           http://www.pca.state.mn.us/water/groundwater/na-links.html

    Minnesota Superfund                     http://www.pca.state.mn.us/programs/superf_p.html

MDH (Minnesota Department of Health)

 http://www.health.state.mn.us/divs/eh/groundwater/hrltable.html

MDA (Minnesota Department of Agriculture)

    Homepage                                          http://www.mda.state.mn.us/

NATIONAL LIBRARY OF MEDICINE

    SIS (Special Information System)- Toxicology and Environmental Health

                    Many links to toxic substances data http://sis.nlm.nih.gov/Tox/ToxMain.html

    Chem ID plus

                    Chemical structures of toxic compounds  http://chem.sis.nlm.nih.gov/chemidplus/

RISK ASSESMENT INFORMATION SYSTEM (RAIS)

    Homepage                                          http://risk.lsd.ornl.gov/index.shtml
 

TOXNET (Toxicology Data Network)-- Data on most environmental toxic compounds

    Homepage                                       http://toxnet.nlm.nih.gov/

    ChemID Lite                                    http://chem2.sis.nlm.nih.gov/chemidplus/chemidlite.jsp

CORNELL Composting Site

                                                        http://compost.css.cornell.edu/Composting_Homepage.html
 

Soil Science Society of America and Glossary of Soil Science Terms

    Homepage                                          http://www.soils.org/sssagloss/

USDA-NRCS (United States Department of Agriculture-Natural Resources Conservation Service)

    Soil Science Descriptions                   http://soils.usda.gov/

    Minnesota online soil surveys             http://soils.usda.gov/survey/online_surveys/

Minnesota River Basin Water Quality Overview

                                                                  http://www.soils.umn.edu/research/mn-river/doc/watqual.html

Chemical Data: Web Elements

    Basic data for all for the elemants    http://www.webelements.com/
 

Helsinki University of Technology

    Transport of materials in subsurface soil and groundwater    http://www.water.hut.fi/wr/kurssit/Yhd-12.126/oppimateriaali/paa_e.htm
 

Conversion of units

        http://www.onlineconversion.com/

EXTOXNET pesticide information profiles
   

    http://ace.orst.edu/info/extoxnet/

    Soil Science Society of America "Publications Handbook and Style Manual"
       (See end of first chapter for reference styles)
         https://www.soils.org/publications/style/