Contaminants of Emerging Concern Review Prioritization Meeting Environmental Health Division | Health Risk Assessment Unit June 6, 2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS Meeting Agenda Welcome Contaminants of Emerging Concern (CEC) Initiative Overview Guidance Process Preliminary Contaminant Rankings for Guidance Development Proposed 2020 Workplan and Discussion 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS Meeting Purpose Increase stakeholder engagement and transparency in the nomination and selection process Align with the selection process for contaminants reviewed under Health Risk Limits (HRL) Consider recommendations made by the University of Minnesota in a 2016 review of the CEC Initiative’s selection process Result in a draft annual work plan for fiscal year 2020 The full report is available online: www.health.state.mn.us/cec 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

The CEC Initiative: Part of Minnesota’s Legacy “To protect drinking water sources; to protect, enhance, and restore wetlands, prairies, forests, and fish, game, and wildlife habitat; to preserve arts and cultural heritage; to support parks and trails; and to protect, enhance, and restore lakes, rivers, streams, and groundwater.” 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

The CEC Initiative: Legislative Language “… addressing public health concerns related to contaminants found in Minnesota drinking water for which no health-based drinking water standards exist, for improving the department's capacity to monitor the water quality of drinking water sources and to develop interventions to improve water quality, and for the department's laboratory to analyze unregulated contaminants.” 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

The CEC Initiative: Expanded Protection for Minnesotans 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS For More Information www.health.state.mn.us/cec 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS CEC Guidance Process Nominated to CEC Initiative Screened for Feasibility + Toxicity and Exposure Potential Scored and Ranked based on Results of Screening May be Selected for Full Toxicological Review Reviewed by Toxicological and Exposure Team Guidance Derived Based on Review Guidance Published and Communicated to Stakeholders 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Screening, Ranking, and Selection of Priorities Nominated to CEC Initiative Screened for Feasibility + Toxicity and Exposure Potential Scored and Ranked based on Results of Screening May be Selected for Full Toxicological Review Reviewed by Toxicological and Exposure Team Guidance Derived Based on Review Guidance Published and Communicated to Stakeholders 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Feasibility of Toxicological Review 70 with sufficient information 22 not feasible 92 contaminants screened 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Scoring based on Toxicity and Exposure Potential Screenings Toxicity Potential Noncancer and/or Cancer Potency Severity of Effects Other Effects/Considerations Exposure Potential Persistence/Fate Disposal and Release Potential Occurrence in Water 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Toxicity and Exposure Screening Score Distribution 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Score Distribution of High Scoring Contaminants Special Project Strong Candidate FY2020 Limited feasibility/application 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Contaminants of Emerging Concern Special Projects Special projects are initiated by MDH when information is needed to address a specific question or issue Covers a wide variety of topics – Website has details https://www.health.state.mn.us/communities/environment/risk/guidance/dwec/specproj.html Examples include: Education and Outreach Grants Alternative Risk Assessment Methodology Analytical Method Development Pharmaceutical Screening Project 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Disinfection Byproducts Special Project Water disinfection is one of the most important tools in public health for disease prevention Due to ongoing needs and high ranking of many DBPs, a special project is the best way to address this group Long-term special project FY2020 and beyond 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Score Distribution of High Scoring Contaminants 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

FY2020 Workplan: Feedback and Discussion Strong Candidates Anthraquinone Benzophenone Biphenyl Fluconazole Lithium 2-Methoxyethanol Nicotine o-Toluidine Tributyl phosphate Tris(2-butoxyethyl)phosphate 8/29/2019 PROTECTING, MAINTAINING AND IMPROVING THE HEALTH OF ALL MINNESOTANS

Thank you! 8/29/2019