Learn the Issues
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Tier II reporting for agricultural dusts and agricultural products handled in powdered form (i.e. combustible dust)
EPCRA Section 312 requires facility owners or operators to submit annual chemical inventory reports (Tier I/Tier II Forms) for any OSHA defined hazardous chemical subject to OSHA's Hazard Communication Standard ( 29 CFR section 1910.1200 ) when present at a facility above threshold amounts at any one time during the…
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What is meant by "molten" and "in solution" when describing extremely hazardous substances?
To assist state and local officials in the development of emergency response plans, the Emergency Planning and Community Right-to-Know Act (EPCRA) requires the owner or operator of each facility at which an extremely hazardous substance (EHS) is present in an amount equal to or exceeding its threshold planning quantity (TPQ)…
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Reporting radionuclide mixtures if composition is known
How are mixtures of radionuclides reported if the composition of the mixture is known? The requirements for reporting mixtures of radionuclides depend on whether the composition of the mixture is known or unknown. If the identity and quantity (in curies) of each radionuclide involved in a release is known, the…
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Reporting hazardous substance mixtures
How are mixtures of hazardous substances (other than radionuclides) reported? EPA issued the "mixture rule" ( 40 CFR section 302.6(b) ), developed in connection with CWA section 311 regulations, as a method for determining when to report releases of mixtures or solutions. Under the mixture rule, if the quantities (or…
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Releases from a facility onto a public roadway that runs through the facility
The EPCRA emergency notification regulations require facility owners and operators to immediately report releases into the environment of extremely hazardous substances or CERCLA hazardous substances if the releases exceed specific reportable quantities ( 40 CFR §355.42 ). The notification must be provided to the appropriate State Emergency Response Commission and…
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Mystic River Watershed Steering Committee Meeting, January 10, 2010
Document(s) from the January 10, 2010 Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Steering Committee Meeting, November 18, 2009
Document(s) from the November 18, 2009 Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Pre-Steering Committee Meeting, January 28, 2009
Document(s) from the January 28, 2009 Pre-Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Pre-Steering Committee Meeting, December 3, 2008
Document(s) from the December 3, 2008 Pre-Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Pre-Steering Committee Meeting, October 6, 2008
Document(s) from the October 6, 2008 Pre-Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Steering Committee Meeting, September 14, 2017
Document(s) from the September 14, 2017 Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Steering Committee Meeting, November 30, 2017
Document(s) from the November 30, 2017 Steering Committee Meeting for the Mystic River Watershed.
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Inter-Agency Advisory Committee (IAAC) Meeting Minutes Archive
Archive of minutes for Inter-Agency Advisory Committee (IAAC) meetings
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Cleanup Agreements for the GE-Pittsfield/Housatonic River Site
Learn more about consent decree, RCRA agreements, definitive economic development agreement, 1 1/2 mile bershier gas settlement agreement, cost recovery, and prospective purchaser agreement.
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Environmental Education Resources for Teachers and Students
Background Information on Environmental Issues and Student Activities.
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Mystic River Watershed Steering Committee Meeting, April 13, 2017
Document(s) from the April 13, 2017 Steering Committee Meeting for the Mystic River Watershed.
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Mystic River Watershed Municipal Subcommittee IDDE Workshop, October 29, 2015
Document(s) from the October 29, 2015 Municipal Subcommittee Illicit Discharge Detection and Elimination Program Workshop for the Mystic River Watershed.
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Mystic River Watershed Water Quality Science Subcommittee Meeting, January 7, 2010
Document(s) from the January 7, 2010 Water Quality Science Subcommittee Meeting for the Mystic River Watershed.
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Mystic River Watershed Steering Committee Meeting, June 19, 2014
Document(s) from the June 19, 2014 Steering Committee Meeting for the Mystic River Watershed.
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TMDL Report and Approval Documents for Boston Harbor, Weymouth-Weir, and Mystic Watersheds, MA
View supporting documents for Boston Harbor, Weymouth-Weir, and Mystic Watersheds in Massachusetts.