Minnesota Pollution Control Agency (MPCA) - Update on Vapor Intrusion Tim Grape and Gary Krueger - Vapor Intrusion Best Management Practices (BMP) Updates and Clarifications - Vapor Intrusion BMP Path Forward and Stakeholder Input - Additional Assistance at Vapor Intrusion Projects: New Technical Assistance Letters & MPCA eService . In The News > Technology Innovation News Survey - CLU-IN His responsibilities include technical oversight of hydrogeologic evaluations, remedial investigation and risk . 22 Question B: Are the exposure assumptions, toxicity data, cleanup levels, and remedial action PDF Table of Contents Minnesota Pollution Control Agency - MN November 5, 2014 / in Uncategorized / by Natalie Brown. These chemical vapors can sometimes pose risks to human health. Vapor mitigation is necessary when a voluntary party conducts a vapor assessment and identifies potential vapor intrusion risk for an on-site building. The Minnesota Pollution Control Agency (MPCA) and the Minnesota Department of Health (MDH) cooperatively produced this technical support document. For instance, the Connecticut Property Transfer Act requires an investigation in accordance with prevailing standards and guidelines. MPCA's "Vapor Intrusion Technical Support Document" (MPCA, 2010). He has worked in the MPCA's remediation division since 1992. The NAPL body generally contains much more COC mass than is present in the dissolved and vapor phase, and contains a finite mass of COC. Vapor Intrusion Mitigation Acronym List Groundwater samples from water table wells were obtained using new, clean disposable polyethylene bailers. potential vapor intrusion risks from DoD releases should be provided to non-DoD site owners or any future users. 2019. Minn. Stat. MNANG, in consultation with MPCA, has concluded enhanced bioremediation and phytoremediation actions are required at . DEEP's expectations are set forth in the Site Characterization Guidance Document PDF 1 Welcome - Thanks for joining this ITRC Training Class Responded to significant media interest from print, radio and television reporters. For more information about the Reilly site, visit the EPA's website, or visit the St. Louis Park Public Library, 3240 Library Lane, (site files are located here for public use).. On Nov. 28, 2018, the City of St. Louis Park hosted a presentation about the successful environmental cleanup efforts related to the former 80-acre Reilly Tar & Chemical Corp. (Reilly) site over the . See the Minnesota Department of Health for information about vapors and human health. Lists of . (TCE)!concentrations!of!2!μg/m3!and!20!μg/m3!are . 2014 Team Voyager Award- General Mills Superfund Site Vapor Intrusion Response Team A Grid plans and table at end of form are not protected so user may edit as needed (only change 6/5/12 so did not change date in footer). sources with the homeowner (see Chapter 7.1 and 8 of the NJDEP Vapor Intrusion Guidance Document, October 2005). Vapor intrusion at sites contaminated with volatile organic compounds (VOCs) has emerged as a key challenge for communities. Once the second round of sampling occurs with vapor intrusion . The locations may be slightly modified based on physical access limitations or if DPT refusal is encountered. MPE multiphase extraction. Once the vapor points were advanced, a bentonite seal was placed around the temporary probe to prevent ambient air from entering the sample. (MPE) Tech Sheet Soil Vapor Extraction (SVE) Tech Sheet Emerging Technologies Aerobic Vapor Mitigation Barrier (AVMB) Tech Sheet . PDF Five-Year Review Report Fourth Five-Year Review Report If you wish to access presentations and documents from . December News from Minnesota Brownfields We appreciate comments on the usability of the documents and forms. Intrusion screening values (ISVs) for vapor intrusion risk evaluation document. PDF Biofuel Releases: Prevention, Investigation, and ... MPCA, (Minnesota Pollution Control Agency). Guidance for Evaluating the Vapor Intrusion Exposure Pathway; Area Averaging Approach to Soil Compliance for Direct Contact Exposure Scenarios FAQs for Evaluating the Soil-to-Groundwater Pathway Groundwater Contaminant Fate & Transport Modeling; Guidance for Demonstrating Completion of Soil Removal Actions at Corrective Action Sites; Program Specific Topics Mark Toso is a Senior Hydrogeologist at the Minnesota Pollution Control Agency in St Paul. PDF Non-aqueous Phase Liquid (NAPL) Characterization ... But, following a bill signing by Governor Tim . Responses to feedback are expected for December 2015. PDF Vapor Intrusion Assessments Performed During Site ... Procedure | Environmental Assessments and Remediation 2.3.4.1 Minnesota Pollution Control Agency Responsibilities This guidance document will be updated as necessary as the MPCA incorporates information from active Minnesota vapor intmsion . IDEM, 2019 IDEM. potential vapor intrusion risks from DoD releases should be provided to non-DoD site owners or any future users. 1 ppb). The intent of the Environmental Assessments and Remediation procedure is to identify recognized environmental conditions (REC) associated with building materials, indoor air quality, soil, and groundwater, and to mitigate their potential effects on human health and the environment. ITRC has previously produced guidance documents on evaluating the . "Applying Dynamic Controls to Vapor Intrusion Mitigation Systems to Manage Pressure Differentials, Effluent Concentrations and Energy Conservation." 2014. More information. (MPCA, 2010). Mitigation Chapter 1 provides basic information on the vapor intrusion pathway. With limited resources and without further justification it has not been a priority for MPCA to pursue investigation. 3) The NAPL body may act as a long-term origin of chemicals of concern (COC) for the aqueous (dissolved) and vapor phases, referred to as compositional plumes. 11 in the QAPP (Bonestroo, 2011). The MPCA has developed procedures for vapor intrusion mitigation and public communication work that will be used by MPCA and our contractors for doing these aspects of vapor intrusion work. MPCA's "Vapor Intrusion Technical Support Document" (MPCA, 2010). 8 to 10 f eet bgs are proposed, based on the approximate depths of basements as recommended in MPCA's "Vapor Intrusion Technical Support Document" (MPCA, 2010). The ITRC Vapor Intrusion Team is composed of representatives from 19 states environmental agencies, 12 environmental companies, and four federal agencies (including EPA). The Minnesota Pollution Control Agency (MPCA) Voluntary Investigation and Cleanup, . Principal Minneapolis, Minnesota Office 612.253.8202 Office 612.791.0506 Mobile etollefsrud@geosyntec.com - Vapor Intrusion Assessment, Mitigation Cloud. document guides MPCA's use of the funds Intrusion Screening Values (ISVs) for vapor intrusion risk evaluation (aq1-36) — Jan. 2021. 21 Site Inspection 21 VII. Soil gas results are provided in Table 1, compared to 33X the Minnesota Pollution Control Agency (MPCA) compound-specific, industrial intrusion screening values (33x ISVs). Hazardous Vapor Mitigation Site. providing technical support to a broad range of contaminated sites around the globe and managing soil and groundwater remediation issues such as vapor intrusion, non-aqueous phase liquids, green remediation approaches, and sustainability. View the program agenda. The MPCA focused on evaluating soil vapor in the residential and commercial neighborhoods north of Highway 7 and south of Highway 7. General Topics. Vapor intrusion occurs when chemical vapors migrate from a source of contamination through the soil into the basements or foundations of buildings. Technical Assessment 22 Question A: Is the remedy functioning as intended by the decision documents ? Vapor Intrusion website This website provides basic information regarding non-petroleum vapor intrusion (e.g., vapor intrusion from chlorinated solvents) including technical and policy documents to support environmental investigations, and highlights of recent and upcoming activities related to vapor intrusion. Costs associated with soil vapor mitigation must be based on data provided that shows soil vapors are over 10 times the MPCA intrusion screening value thresholds. 1.1 Current Approaches to Assessing Vapor Intrusion Until recently, vapor intrusion of subsurface VOC contamination to indoor air was not well understood, and this exposure pathway was rarely evaluated as part of a human health risk If you have comments, please e-mail the Technical Program Support Team in the Remediation Division Support Section. A companion document, the Technical Guide for Addressing Petroleum Vapor Intrusion at Leaking Underground Storage Tank Sites addresses any sites where vapor intrusion related to petroleum contamination from underground storage tanks is a potential concern. WCEC assisted the Minnesota Pollution Control Agency (MPCA) emergency response team with reports of vapor impacts in an apartment building in a mixed commercial and residential area in St. Vapor Intrusion Forum Series. Actions documenting environmental monitoring systems or the successful implementation of a RAP such as technical writing are eligible for reimbursement. Developed communication documents and websites. for general support activities such as laboratory costs or preliminary site investigations or . Additional Vapor Intrusion Resources. 2 June 2015 Assessing and Mitigating the Vapor Intrusion Pathway from Subsurface Vapor Sources to Indoor Air DISCLAIMER This document presents current technical recommendations of the U.S. Environmental The U.S. Environmental Protection Agency (EPA) has released a guidance document entitled, Supplemental Guidance For Evaluating the Vapor Intrusion to Indoor Air Pathway (2001) that deals with indoor air impacts of subsurface soil contamination. Gary Krueger, Minnesota Pollution Control Agency . This team developed the ITRC Technical and Regulatory Guidance Document Vapor Intrusion Pathway: A Practical Guideline (VI-1, 2007), companion document Vapor Intrusion Pathway: As a Senior Hydrogeologist at the Minnesota Pollution Control Agency in St Paul, MN I worked in the remediation division and . Hazardous Vapor Mitigation Site. Spills can also be reported to the Minnesota Duty Officer at 651-649-5451. Groundwater samples from submerged soil-gas probes were obtained using a peristaltic pump. Vapor Intrusion Update • EPA's vapor intrusion program evaluates benzene, ethylbenzene and naphthalene based on cancer risk • Evidence that ethylbenzene and naphthalene pose cancer risks to humans is very limited. Post Run Tubing (PRT) active soil gas sampling probes with expendable sampling points were installed at each location. The MPCA is also in the process of reviewing stakeholder feedback from the second release of the Soil Reference Value (SRV) Technical Support Document, SRV Spreadsheets and the Background Threshold Value (BTV) Evaluation. - Vapor Intrusion - Investigation, Design & Mitigation - CERCLA Cost Recovery Litigation Support & Expert Testimony - Financial Reserve Development & Management Eric Tollefsrud, P.G. The soil vapor point construction was in conformance with the drawing for nested soil gas probes shown on Figure D-1 of the Vapor Intrusion Technical Support Document (MPCA, 2010), a copy of which was included in Attachment A of SOP No. 2020 Teams Soil Background Concentrations Jan 2020—July 2021 GSR / Resiliency June 2019—May 2021 Team Leaders: Bonnie Brooks (MPCA) and Claudio Sorrentino (CA DTSC) Team descriptions reflect the original project proposal and may change over the lifetime of the project. This document is issued by the Air National . Alternate contact number during business hours: 651-296-6300. While a second round of testing is underway, a conditional NAD is issued from the MPCA, allowing for the nuts and bolts of the transaction process to move along. An acute and immediate hazard due to accumulated vapors warranted partial evacuation of the apartment building. activities, and the Minnesota Pollution Control Agency (MPCA), the regulatory agency. document, providing technical input, review, and direction to achieve a document that represents and serves the needs of the Air Force, Army, Navy, and Marine Corps. The document outlines three tiers or levels of evaluation for the vapor intrusion to indoor air pathway. Trichloroethylene! As shown in Table 1, none of the PCE and TCE results exceeded MPCA's established screening level of 33x ISVs at the locations sampled along the eastern property boundary. Over 100 redevelopment professionals met May 15 in St. Paul to discuss a new Minnesota Brownfields report (Executive Summary, 11 pages) on current conditions and existing barriers to off-site soil reuse. The ITRC Vapor Intrusion Team is composed of representatives from 19 states environmental agencies, 12 environmental companies, and four federal agencies (including EPA). gradient, etc.) . vapor intrusion pathway and petroleum vapor intrusion. 25. Introduction and Overview of Vapor Intrusion Mitigation Training Team Fact Sheet . A protectiveness determination of the remedy at Operable Unit 2 cannot be made at this time until further information is obtained. Acknowledgements. Purpose. • Only 10 sites tested initially for vapor intrusion • Test for contaminants of emerging concern • Evaluate new/lowering health . Trichloroethene, or TCE, is a chemical solvent that has historically been widely used by the metals manufacturing industry as a degreaser. A high methane concentration exceeds 10% of the MPCA also states that the location and extent of potential deeper contamination, below the top 1 -2 feet, hasve not been investigated and that "hot spots" are assumed to exist which presents groundwater and soil exposure risks to construction workers and vapor intrusion risks to any building which may be located on the site. Minnesota officials have issued novel guidance for assessing the health risks posed by migrating indoor air pollutants that stem from groundwater and soil contaminated by petroleum wastes near residential and industrial buildings. The Minnesota Pollution Control Agency (MPCA) monitors environmental quality, offers technical and financial assistance, and enforces environmental regulations. pose a health concern due to th e vapor intrusion pathway, as well as determine when action may be needed to protect health. Mike provides technical support for the administration of the Land Recycling Program (PA's voluntary . State of Minnesota. m'MINNESOTA POLLUTION CONTROL AGENCY. Vapor intrusion. Hatton and Salcone, 2014 Hatton, Thomas, and M. Salcone. Intrusion Screening Values Technical Support Document (c-rem3-12) — Jan. 2021. The state is one of the first to address migrating groundwater and soil pollutants that can affect indoor air quality, and comes as EPA is working Site investigation 4. The Interactive Directory below presents the relationship between work products prepared by the VIMT team. The Minnesota Pollution Control Agency (MPCA) monitors environmental quality, offers technical and financial assistance, and enforces environmental regulations. He has actively participated in and taught for a number of ITRC Teams including the Biofuels Team. In October 2017, the MPCA released a document outlining the best management practices (BMPs) for vapor intrusion and building mitigation decisions [2]. (MPE) Tech Sheet Soil Vapor Extraction (SVE) Tech Sheet Emerging Technologies Aerobic Vapor Mitigation Barrier (AVMB) Tech Sheet . The forum featured a region-wide perspective on vapor intrusion policy and regulations in the Midwest. This includes any other due diligence or escrow conditions that must be met and paperwork associated with the transaction. Post Run Tubing (PRT) active soil gas sampling probes with expendable sampling points were installed at each location. MPCA develops statewide policy, support s environmental education, and help s ensure Petroleum Vapor Intrusion: Fundamentals of Screening . The ITRC Vapor Intrusion Team comprises of a wide variety of state regulators, federal partners, industry representatives and stakeholders. Chemical Accurate collection of information for completion of these forms is critical and includes discussions with the property owner to assess building characteristics, potential indoor air contaminant sources, and miscellaneous Vapor intrusion best management practices. The MPCA is the lead agency for developing and implementing the remedy for the Site.This FYR documents the results of the review conducted with the assistance of MPCA contractor, Antea Group of Shoreview, Minnesota. The ITRC Technical and Regulatory Guidance Web-Based Document, Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and Management (PVI-1, 2014) and this associated Internet-based training provides regulators and practitioners with consensus information based on empirical data and recent research to support PVI decision making . Vapor Intrusion 300,000 150,000 Well Abandonment 25,000 25,000 SUBTOTAL: . "Vapor Remedy Selection and Implementation," Indiana Department of Environmental Management, 2019, https . Once the vapor mitigation system is installed, verification testing is necessary per MPA's Vapor Mitigation BMP to confirm the mitigation system is effectively preventing vapor intrusion. This form used alone and is appendix H to Vapor Intrusion Technical Support Document (c-rem3-01). MPCA Minnesota Pollution Control Agency. I. ISV . General Topics. Since 2008, Mike has worked at PADEP focusing on human health and ecological risk assessment, vapor intrusion and the Uniform Environmental Covenants Act (UECA). Aug 1992 - Jun 202128 years 11 months. Five-Year Review Process 21 Administrative Components 21 Community Involvement. The members of the Interstate Technology & Regulatory Council (ITRC) Vapor Intrusion Mitigation Training (VIMT) Team wish to acknowledge and thank the individuals, organizations, and agencies that contributed to this online document, which includes multiple Fact Sheets, Technology Information Sheets, and Checklists. The forum addressed regulatory, technical, legal, and economic components of this . Soil Reuse 2.0 Forum. Procedures for collection and analysis of soil samples followed Minnesota Pollution Control Agency (MPCA) Guidance Document 4-04 (MPCA 2021). Cloud. It is primarily intended for persons with technical backgrounds and experience in contaminated site cleanup, including Ecology Cleanup Project . This vapor intmsion guidance document is supplemented by a Vapor Intmsion Technical Support Document (Technical Support Document) which provides more detailed technical guidance for evaluating the vapor intmsion pathway. Further information will be obtained by completing a vapor intrusion investigation. Although the document is written for the environmental professional who has some general knowledge of vapor intrusion, The document provides guidance on the remediation of petroleum contaminated sites under the Model Toxics Control Act (MTCA) Chapter 70.105D, and its implementing regulations, Chapter 173-340 WAC. If a parcel within the dump impact boundary were to be redeveloped today, a VOC vapor intrusion investigation would be required. 115B (2008), requires the Minnesota Pollution Control Agency (MPCA) to adopt . acronyms, glossary terms, and references cited in the fact sheets are also What%sub)slab%screening%valuesare%used%to%determine%if%a%home%isto%receive%a%mitigation%system?:! Delivering technical and sensitive health information to the public and individual residents. Monitoring was conducted in Vapor Intrusion Pathway: A Practical Guideline (ITRC 2007). ch. Disclaimer: Mention of state vapor intrusion guidance or reference to specific approaches The procedures and documents were developed working closely with the Minnesota Department of Health . This team developed the ITRC Technical and Regulatory Guidance Document Vapor Intrusion Pathway: A Practical Guideline (VI-1, 2007), companion document Vapor Intrusion (651) 757-2158. March 24, 2014 / in Uncategorized / by MN Brownfields. Document Review 16 Data Review 16 VI. Derivation of 33X ISVs and supporting information are in the MPCA's Intrusion screening values technical support document. WCEC assisted the Minnesota Pollution Control Agency (MPCA) emergency response team with reports of vapor impacts in an apartment building in a mixed commercial and residential area in St. For fixed gases, if the results show a high methane concentration in soil gas, contact the MPCA. The 2018 Minnesota Real Estate Journal Brownfields Redevelopment Summit featured key topics such as vapor intrusion, strategic data practices for real estate acquisitions, and funding mechanisms for brownfield redevelopment projects. Appendix A of this document also contains Figure 3-3, "Site Investigation Flowchart," from that technical and regulatory guidance document. Vapor Intrusion Update • EPA's vapor intrusion program evaluates benzene, ethylbenzene and naphthalene based on cancer risk • Evidence that ethylbenzene and naphthalene pose cancer risks to humans is very limited. 1.1 Current Approaches to Assessing Vapor Intrusion Until recently, vapor intrusion of subsurface VOC contamination to indoor air was not well understood, and this exposure pathway was rarely evaluated as part of a human health risk However; further evaluation of vapor intrusion pathways is necessary in order to fully assess protectiveness. An acute and immediate hazard due to accumulated vapors warranted partial evacuation of the apartment building. The Technology Innovation News Survey welcomes your comments and suggestions, as well as information about errors for correction. Groundwater Screening Value for Vapor Intrusion Pathway (GW ISV), and MPCA N. Presenters included representatives from the Minnesota Pollution Control Agency, Wisconsin Department of Natural Resources, and experts from across the industry. Introduction and Overview of Vapor Intrusion Mitigation Training Team Fact Sheet . Minnesota Pollution Control Agency. 1. mark.toso@state.mn.us. Chemical MPCA finds and clean s up spills or leaks that can affect health and environment. Preliminary screening of sites 3. TCE is also used in industrial and household goods like adhesives, paint and stain removers, and finishing products. Spills can be reported to the Minnesota Pollution Control Agency (MPCA) 24 hours a day at 800-422-0798. Minnesota Pollution Control Agency St. Paul, MN 651-757-2158 mark.toso . MPCA develops statewide policy, support s environmental education, and help s ensure Three ways to handling pollution: Cleanup is the most expensive Prevent it . The ISVs are located in a separate spreadsheet on the MPCA website. Minnesota Brownfields presented a 2-part series examining vapor intrusion from all professional perspectives. Response: 25. Minnesota First to Say "Goodbye" to TCE. MPCA finds and clean s up spills or leaks that can affect health and environment. Following are the TRRP guidance documents, including the final documents in the numbered series of TRRP Guidance. St Paul, MN. 2015 version of the draft soil reference values (SRVs) and background threshold values (BTVs), including: Revised SRV Technical Support Document (TSD) Two revised Remediation SRV spreadsheets . However, the lack of VOC analysis is only due to the time period this site was investigated. Guidance for Evaluating the Vapor Intrusion Exposure Pathway; Area Averaging Approach to Soil Compliance for Direct Contact Exposure Scenarios FAQs for Evaluating the Soil-to-Groundwater Pathway Groundwater Contaminant Fate & Transport Modeling; Guidance for Demonstrating Completion of Soil Removal Actions at Corrective Action Sites; Program Specific Topics The , as the support agencyEPA , has reviewed all supporting documentation and provided input to the MPCA during the FYR process. assessment, and vapor intrusion. Both guides are applicable to residential and non-residential settings. In 2007, MPCA samplings of test borings and shallow aquifer wells in St. Louis Park detected high concentrations of certain chlorinated solvents in groundwater, which could cause vapor intrusion into buildings. Once the vapor points were advanced, a bentonite seal was placed around the temporary probe to prevent ambient air from entering the sample. Although this document, does not specifically address commercial/industrial buildings, this set of BMPs offers guidance for conducting vapor investigations and applies to MPCA Resource . An overview of vapor intrusion 2. Please contact Michael Adam of the U.S. EPA Office of Superfund Remediation and Technology Innovation at adam.michael@epa.gov or (703) 603-9915 with any comments, suggestions, or corrections.

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