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Leah MacKinnon

Geosyntec Practitioners will Significantly Contribute to Battelle Chlorinated Conference

2026-08-07T14:29:52-06:00May 21st, 2026|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec practitioners will present, moderate, and chair sessions at Battelle’s Fourteenth International Conference on Remediation of Chlorinated and Recalcitrant Compounds on May 31 through June 4, in Fort Worth, Texas.

Geosyntec Contributes to 2025 Battelle Bioremediation Symposium

2026-03-20T15:33:52-06:00June 16th, 2025|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec and SiREM practitioners will make significant technical contributions at the 2025 Battelle International Symposium on Bioremediation and Environmental Biotechnology from June 23 through 26, 2025, in Boston, Massachusetts.

Geosyntec presents at the AquaConSoil 2023 in Prague

2026-03-15T10:24:26-06:00September 6th, 2023|Tags: , , |

Felipe Solano (Ontario), Leah MacKinnon (Ontario), and James Rayner (United Kingdom) will present at the AquaConSoil 2023 conference in Prague, Czech Republic at the Czech University of Life Sciences from September 12 through 14, 2023.

Julie Konzuk, Leah MacKinnon, and Jamie Evans to Present at the SMART Remediation Conferences in Toronto and Ottawa

2026-03-15T10:24:08-06:00January 25th, 2023|Tags: , , |

Julie Konzuk, Ph.D., P.Eng, (Ontario) will present "Leveraging Your CSM to Develop Successful Bedrock Remediation Approaches: Concepts & Case Studies" at the Smart Methods in Advanced Remediation Technologies (SMART) Remediation Conference at the Lionhead Golf Club and Conference Centre in Toronto, Ontario, at 9:25 a.m. on January 26, 2023. Leah MacKinnon, P.Eng, (Ontario) will present the same topic at the SMART Remediation Conference at the Ottawa Conference and Event Centre in Ottawa, Ontario, at 11:00 a.m. on February 2, 2023.

Geosyntec to Make Significant Contributions to RemTEC and Emerging Contaminants Summit

2026-03-15T10:23:57-06:00October 3rd, 2022|Tags: , , , , , , , , |

Geosyntec professionals will speak, present, and teach at RemTEC and Emerging Contaminants Summit at The Westin Westminster in Westminster, Colorado, October 4 through 6, 2022.

Leah MacKinnon and Julie Konzuk to Present on Leveraging CSM to Develop Bedrock Remediation Approaches

2026-03-15T10:23:23-06:00February 1st, 2022|Tags: , |

Leah MacKinnon, P.Eng., and Julie Konzuk, Ph.D., P.Eng. (Ontario), will present a webinar on Leveraging your CSM to Develop Successful Bedrock Remediation Approaches: Concepts & Case Studies at 1:30 p.m., EST on February 8, 2022.

Pesticide Product Services

2026-07-02T07:45:44-06:00November 23rd, 2021|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Product manufacturers, marketers, and clients are challenged with significant investments of time and money when developing and launching pesticidal products. Critical decisions on marketing, efficacy claims and pesticidal mode of action determine regulatory registration track, required testing programs, and the ultimate path to market. Geosyntec has broad experience in the regulation and registration of all classes of pesticide products (conventional pesticides, biopesticides, and antimicrobials) and provides science-based, business-focused support to guide clients through decision making, product positioning, and ultimately registration and market introduction. Geosyntec's Pesticide Product Services supports clients with insightful, innovative solutions. Geosyntec's team of toxicologists, risk assessors, regulatory specialists, and chemists have extensive experience and knowledge of pesticide testing, submission, and label requirements under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). We know how to position projects for efficient registration review and processing, and how to avoid misinterpreted guidance, labels, and efficacy claims that can add months to review timeframes and can significantly increase costs. We can assist with navigating all areas of FIFRA including: Preparing a product/pesticide registration strategy Meeting with and advocating on behalf of companies with regulators Developing and submitting FIFRA registration packages, renewals, and label updates Product label content development Preparing inert ingredient petitions Developing data waivers and rationales Scoping, placing, and monitoring product toxicity, physical characteristic, and efficacy studies Responding to regulator requests Pesticide device strategy, claims, data, and regulatory tracking State-level registrations Geosyntec and our wholly-owned SiREM lab manage data generation for new product registrations and amending existing products, particularly for antimicrobial products. Geosyntec and SiREM provide in-depth analytical consulting support covering toxicology studies and antimicrobial efficacy testing. SiREM provides Good Laboratory Practice (GLP) standard antimicrobial testing (i.e., bacteria and virus) to support required testing and methods under FIFRA. The Geosyntec and SiREM team allows for expert level review and strategy development of testing programs, as well as expedited access to efficacy testing, which can save months in registration timelines. Schedule a Meeting >

Chemical Management Programs

2026-04-23T14:17:48-06:00November 23rd, 2021|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Clients are faced with chemical risks throughout their business products, facilities, and supply chains. Increased regulations at global, regional, and national levels; combined with an expanding list of chemicals of concern; requires companies to demonstrate compliance to regulators while also addressing consumer and stakeholder expectations. Geosyntec provides advisory and evaluation support for multiple aspects of chemical management, from regulatory compliance to safety and supply chain transparency. We actively support chemical safety assessments and product stewardship summaries to help chemical and product manufacturers address public health concern challenges, regulations and data gaps associated with chemicals in the marketplace. Our services include: Compliance Tracking Management: Geosyntec's compliance team supports companies across applicable regulatory phases in their use and management of chemicals and production of a range of industrial and consumer products. This requires detailed knowledge of applicable regulatory programs; the status of specific chemicals under those programs; pending revisions and updates to the programs; and recordkeeping and reporting procedures to maintain compliance. Chemical Risk Assessment: Geosyntec's support services address human health and ecological risk assessment; hazard identification and evaluation; and exposure assessment. Restricted Substances Lists and Registrations: Our experienced practitioners know regional, national and state programs such as the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), the Toxic Substances Control Act (TSCA), the China State Administration of Work Safety (SAWS) 53, and California Proposition 65. Characterization Testing Programs: Testing programs include human health and ecological toxicity; chemical efficacy/claims verification; chemical content and physical characteristics. Supply Chain Stewardship: Geosyntec helps clients with retailer supplier portal content; registration and tracking; Environmental, Social, and Governance (ESG) reporting; chemical and product content and safety dossiers, and Safety Data Sheets .

Global Product Stewardship

2026-06-30T11:44:06-06:00September 27th, 2021|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

For decades, global chemical control and downstream product regulations, bans, restrictions, and reporting obligations have proliferated, creating major challenges for multinational corporations (MNCs).

Geosyntec Elects New Senior Principals for 2020

2026-03-15T10:21:59-06:00April 9th, 2020|Tags: , , , , , , , , |

Gesoyntec is pleased to announce the promotion of Beau Hodge, Chris Robb, Dave Bertrand, Elaina Modlin, Julia Caprio, Leah MacKinnon, Melissa Asher, Scott Graves, and Victor Damasceno to the position of Senior Principal within the Geosyntec family of companies. These individuals have each made substantial contributions to sustaining and growing our firm, as detailed below. Please join us in congratulating each of them on reaching this significant milestone in their careers.

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