{"id":30028,"date":"2025-09-02T17:16:52","date_gmt":"2025-09-02T17:16:52","guid":{"rendered":"https:\/\/www.trccompanies.com\/?post_type=news-and-insights&#038;p=30028"},"modified":"2025-09-03T18:46:24","modified_gmt":"2025-09-03T18:46:24","slug":"webinar-pfas-analyses-false-positives-false-negatives-and-interferences","status":"publish","type":"news-and-insights","link":"https:\/\/www.trccompanies.com\/fr\/insights\/webinar-pfas-analyses-false-positives-false-negatives-and-interferences\/","title":{"rendered":"TRC\u2019s Webinar On-Demand: PFAS Analyses: False Positives, False Negatives, and Interferences"},"content":{"rendered":"<!-- Start Block: acf\/wysiwyg -->\n\n<section class=\"wysiwyg section-padding bg-white\">\n    <div class=\"container-fluid\">\n        \n        <div class=\"row\">\n                            <div class=\"col-lg-8 columns js-animated-content animated-content\">\n                                        <p class=\"is-animated\" data-pm-slice=\"1 1 []\">Most professionals rely on Level 2 PFAS data packages to make important project decisions\u2014but what critical information could be missing?<\/p>\n<p class=\"is-animated\">Join TRC\u2019s expert-led session to explore how deeper reviews of Level 4 raw data reveal hidden issues that can impact PFAS detection and concentration reporting. We\u2019ll walk through real examples of data anomalies, ranging from false positives to misapplied internal standards, that are not tied to any one lab, but could affect any project.<\/p>\n<p class=\"is-animated\"><strong>You Will Learn:<\/strong><\/p>\n<ul class=\"is-animated\">\n<li>Common analytical oversights in PFAS testing<\/li>\n<li>Real-world data anomalies and their impact<\/li>\n<li>Why raw data (Level 4) review matters<\/li>\n<li>Best practices for verifying PFAS data accuracy<\/li>\n<\/ul>\n<p class=\"is-animated\"><strong>Who Should Attend:<\/strong><\/p>\n<p class=\"is-animated\">Environmental professionals, project managers, regulators and anyone using PFAS data for site assessment, risk evaluation, or compliance decisions.<\/p>\n<p><a class=\"btn btn-primary\" href=\"https:\/\/register.gotowebinar.com\/recording\/2130704450664896863\">Watch Now<\/a><\/p>\n                <\/div>\n                <div class=\"col-lg-4 columns js-animated-content animated-content\">\n                                        <div class=\"wysiwyg__links js-animated-content animated-content\">\n                        <div class=\"wysiwyg__links__top \">\n                                                        <h4>Related Services<\/h4>\n                                                                                    <ul class=\"js-animated-content animated-content\">\n                                                                <li><a href=\"https:\/\/www.trccompanies.com\/services\/remediation-and-materials-management\/pfas-and-emerging-contaminants\/\" target=\"_self\">PFAS and Emerging Contaminants<\/a><\/li>\n                                                            <\/ul>\n                                                    <\/div>\n                                                                                                            <div class=\"wysiwyg__links__bottom\">\n                                    <a href=\"https:\/\/www.trccompanies.com\/services\" target=\"_self\">View All Services<\/a>\n                                <\/div>\n                                                                                                <\/div>\n                <\/div>\n                    <\/div>\n\n            <\/div>\n<\/section>\n<!-- End Block: acf\/wysiwyg -->\n\n<!-- Start Block: acf\/innerpage-promotion-blocks -->\n\n<section class=\"cta-right-image-text\">\n    <div class=\"cta-right-image-text__wrap\">\n        <div class=\"cta-right-image-text__text\">\n            <div class=\"cta-right-image-text__text__wrap js-animated-content animated-content\">\n                <h2 class=\"is-animated\" data-pm-slice=\"1 1 []\">Meet the Speaker<\/h2>\n<h3 class=\"is-animated\" data-pm-slice=\"1 1 []\"><a href=\"mailto:EDenly@trccompanies.com\">Elizabeth Denly<\/a><\/h3>\n<p class=\"is-animated\" data-pm-slice=\"1 1 []\">VP, PFAS Initiative Leader &amp; Chemical Director<\/p>\n            <\/div>\n        <\/div>\n        <div class=\"cta-right-image-text__image\">\n            <img decoding=\"async\" width=\"1013\" height=\"1035\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/LizDenly_March-2024-e1759175186265.jpg\" class=\"object-fit\" alt=\"LizDenly_March-2024-e1759175186265\" \/>            <span class=\"top\"><\/span>\n            <span class=\"bottom\"><\/span>\n            <span class=\"left\"><\/span>\n            <span class=\"right\"><\/span>\n        <\/div>\n    <\/div>\n<\/section>\n\n<!-- End Block: acf\/innerpage-promotion-blocks -->\n\n<!-- Start Block: acf\/innerpage-news-and-insights -->\n<section class=\"image-cards image-cards--news-and-insights section-margins image-cards--with-slider image-cards--innerpage\">\n    <div class=\"container-fluid\">\n        <div class=\"image-cards__wrap\">\n            <div class=\"image-cards__left\">\n                <div>\n                    <h2>Partager nos perspectives<\/h2>\n<p>Nos praticiens partagent leurs id\u00e9es et leurs points de vue sur les tendances et les d\u00e9fis qui fa\u00e7onnent le march\u00e9.<\/p>\n                <\/div>\n                            <\/div>\n                            <div class=\"image-cards__right\">\n                    <div class=\"js-image-cards-slider fx-slider\">\n                                                <div class=\"image-cards-slider-item fx-slide\">\n                            <div class=\"image-card\">\n                                <div class=\"image-card__image\">\n                                    <img decoding=\"async\" width=\"700\" height=\"394\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-700x394.jpg\" class=\"attachment-homepage-image-card size-homepage-image-card\" alt=\"e81273b4-pfas-forensics-2\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-700x394.jpg 700w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-300x169.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-1024x576.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-768x432.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-1536x864.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-1067x600.jpg 1067w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2-889x500.jpg 889w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/e81273b4-pfas-forensics-2.jpg 2000w\" \/>                                <\/div>\n                                <div class=\"image-card__info\">\n                                    <div class=\"image-card__info__top\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/news-and-insights-category\/insights\/\" class=\"image-card__category\">Insights<\/a>                                                                                                                        <h3>PFAS Forensics &#8211; Identify the Source of PFAS<\/h3>\n                                        <h4 class=\"hidden-md-down\">juillet 8, 2022<\/h4>\n                                        <p class=\"image-card__description\">Forensics and source identification is necessary to detect the unique PFAS chemical signatures<\/p>\n                                    <\/div>\n                                    <div class=\"image-card__info__bottom\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/insights\/forensics-as-a-differentiator-let-us-identify-the-source-of-pfas\/\" class=\"image-card__link\">En savoir plus<\/a>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"image-cards-slider-item fx-slide\">\n                            <div class=\"image-card\">\n                                <div class=\"image-card__image\">\n                                    <img decoding=\"async\" width=\"700\" height=\"350\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-700x350.jpg\" class=\"attachment-homepage-image-card size-homepage-image-card\" alt=\"c408d779-01-keeping-up-with-pfas-regulatory-updates\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-700x350.jpg 700w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-300x150.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-1024x512.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-768x384.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-1200x600.jpg 1200w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates-1000x500.jpg 1000w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2023\/08\/c408d779-01-keeping-up-with-pfas-regulatory-updates.jpg 1280w\" \/>                                <\/div>\n                                <div class=\"image-card__info\">\n                                    <div class=\"image-card__info__top\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/news-and-insights-category\/resources\/\" class=\"image-card__category\">Resources<\/a>                                                                                                                        <h3>Keeping Up With PFAS Regulatory Updates<\/h3>\n                                        <h4 class=\"hidden-md-down\">ao\u00fbt 1, 2023<\/h4>\n                                        <p class=\"image-card__description\">Since the early 2000s, the United States Environmental Protection Agency (EPA) has implemented regulations to reduce PFAS exposure and protect public health.<\/p>\n                                    <\/div>\n                                    <div class=\"image-card__info__bottom\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/insights\/pfas-regulatory-updates\/\" class=\"image-card__link\">En savoir plus<\/a>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"image-cards-slider-item fx-slide\">\n                            <div class=\"image-card\">\n                                <div class=\"image-card__image\">\n                                    <img decoding=\"async\" width=\"700\" height=\"467\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-700x467.jpg\" class=\"attachment-homepage-image-card size-homepage-image-card\" alt=\"GettyImages-503814062-scaled\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-700x467.jpg 700w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-300x200.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-1024x683.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-768x512.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-1536x1024.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-2048x1365.jpg 2048w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-900x600.jpg 900w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/07\/GettyImages-503814062-750x500.jpg 750w\" \/>                                <\/div>\n                                <div class=\"image-card__info\">\n                                    <div class=\"image-card__info__top\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/news-and-insights-category\/resources\/\" class=\"image-card__category\">Resources<\/a>                                                                                                                        <h3>PFAS in Consumer Products: Assessing the Risk of Dermal Exposures<\/h3>\n                                        <h4 class=\"hidden-md-down\">juillet 17, 2025<\/h4>\n                                        <p class=\"image-card__description\">Products, such as bandages, baby wipes and feminine care products, may contain trace levels of PFAS due to intentional use or cross-contamination, which has prompted recent concerns about skin absorption and long-term health effects. \u200b<\/p>\n                                    <\/div>\n                                    <div class=\"image-card__info__bottom\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/insights\/pfas-in-consumer-products-assessing-the-risk-of-dermal-exposures\/\" class=\"image-card__link\">En savoir plus<\/a>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"image-cards-slider-item fx-slide\">\n                            <div class=\"image-card\">\n                                <div class=\"image-card__image\">\n                                    <img decoding=\"async\" width=\"700\" height=\"381\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-700x381.jpg\" class=\"attachment-homepage-image-card size-homepage-image-card\" alt=\"image-25-scaled\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-700x381.jpg 700w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-300x163.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-1024x558.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-768x418.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-1536x836.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-2048x1115.jpg 2048w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-1102x600.jpg 1102w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2025\/04\/image-25-918x500.jpg 918w\" \/>                                <\/div>\n                                <div class=\"image-card__info\">\n                                    <div class=\"image-card__info__top\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/news-and-insights-category\/videos\/\" class=\"image-card__category\">Videos<\/a><a href=\"https:\/\/www.trccompanies.com\/fr\/news-and-insights-category\/events-and-webinars\/\" class=\"image-card__category\">Webinar Replay<\/a>                                                                                                                        <h3>TRC\u2019s Webinar On-Demand ART-PFAS Technology<\/h3>\n                                        <h4 class=\"hidden-md-down\">mai 7, 2025<\/h4>\n                                        <p class=\"image-card__description\">TRC\u2019s Nidal Rabah and Brendan Lazar present ART-PFAS, an award-winning in-situ alternative to pump-and-treat for remediating PFAS and VOCs in groundwater.<\/p>\n                                    <\/div>\n                                    <div class=\"image-card__info__bottom\">\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/insights\/trcs-webinar-on-demand-art-pfas-technology\/\" class=\"image-card__link\">En savoir plus<\/a>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                            <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/section>\n<!-- End Block: acf\/innerpage-news-and-insights -->\n\n<!-- Start Block: acf\/innerpage-featured-projects -->\n\n<section class=\"projects-featured section-margins bg-white hidden-xs-down\">\n    <div class=\"container-fluid\">\n        <div class=\"projects-featured__top-content js-animated-content animated-content\">\n            <div class=\"projects-featured__top-content__text js-animated-content animated-content\">\n                <h2>Related Projects<\/h2>\n            <\/div>\n                    <\/div>\n\n        <div class=\"projects-featured__block\">\n            <div class=\"row\">\n                <div class=\"col-lg-7 big hidden-md-down\">\n                    <div class=\"js-projects-featured-slider fx-slider\">\n                                                <div class=\"projects-featured-slider-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188.jpg\" class=\"object-fit project-list-card-image\" alt=\"088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188.jpg 2000w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-300x200.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-1024x682.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-768x512.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-1536x1024.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-900x600.jpg 900w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-750x500.jpg 750w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-700x467.jpg 700w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li><a href=\"https:\/\/www.trccompanies.com\/projects-category\/pfas-and-emerging-contaminants\/\" class=\"image-card__category\">PFAS and Emerging Contaminants<\/a><\/li><li><a href=\"https:\/\/www.trccompanies.com\/projects-category\/projects-with-purpose\/\" class=\"image-card__category\">Projects With Purpose<\/a><\/li><li><a href=\"https:\/\/www.trccompanies.com\/projects-category\/remediation-and-materials-management\/\" class=\"image-card__category\">Remediation and Materials Management<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-treatment-evaluation-for-the-maysville-well\/\" class=\"project-list-card-title\">PFAS Treatment Evaluation for the Maysville Well<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-treatment-evaluation-for-the-maysville-well\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>TRC staff installed a water treatment system to remediate and prevent recurrence of PFAS in the Maysville Well in North &hellip;<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"projects-featured-slider-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"1953\" height=\"1535\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682.jpg\" class=\"object-fit project-list-card-image\" alt=\"125c87ed-saturated-foliage-river-1016909682\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682.jpg 1953w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-300x236.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-1024x805.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-768x604.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-1536x1207.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-763x600.jpg 763w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-636x500.jpg 636w\" sizes=\"(max-width: 1953px) 100vw, 1953px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li><a href=\"https:\/\/www.trccompanies.com\/projects-category\/pfas-and-emerging-contaminants\/\" class=\"image-card__category\">PFAS and Emerging Contaminants<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/projects\/investigating-pfas-in-ground-and-surface-water\/\" class=\"project-list-card-title\">Investigating PFAS in Ground and Surface Water<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/projects\/investigating-pfas-in-ground-and-surface-water\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>With TRC\u2019s research and knowledge into locating the source of PFAS and demonstrating this conclusion to MassDEP, we were able &hellip;<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"projects-featured-slider-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"1133\" height=\"800\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination.jpg\" class=\"object-fit project-list-card-image\" alt=\"air-contamination\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination.jpg 1133w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-300x212.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-1024x723.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-768x542.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-850x600.jpg 850w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-708x500.jpg 708w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-700x494.jpg 700w\" sizes=\"(max-width: 1133px) 100vw, 1133px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li><a href=\"https:\/\/www.trccompanies.com\/projects-category\/pfas-and-emerging-contaminants\/\" class=\"image-card__category\">PFAS and Emerging Contaminants<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-investigation-at-former-michigan-plating-facility-2\/\" class=\"project-list-card-title\">PFAS Investigation at Former Michigan Plating Facility<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-investigation-at-former-michigan-plating-facility-2\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>TRC is helping the current owner address PFAS contamination on the site.<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"projects-featured-slider-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"2121\" height=\"1414\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1.jpg\" class=\"object-fit project-list-card-image\" alt=\"GettyImages-1820805377-1\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1.jpg 2121w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-300x200.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-1024x683.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-768x512.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-1536x1024.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-2048x1365.jpg 2048w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-900x600.jpg 900w\" sizes=\"(max-width: 2121px) 100vw, 2121px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li><a href=\"https:\/\/www.trccompanies.com\/fr\/projects-category\/assainissement-et-gestion-des-materiaux\/\" class=\"image-card__category\">Assainissement et gestion des mat\u00e9riaux<\/a><\/li><li><a href=\"https:\/\/www.trccompanies.com\/fr\/projects-category\/pfas-et-contaminants-emergents\/\" class=\"image-card__category\">PFAS et contaminants \u00e9mergents<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/fr\/projects\/lingenierie-conventionnelle-pour-un-nouveau-probleme-environnemental\/\" class=\"project-list-card-title\">L\u2019ing\u00e9nierie conventionnelle pour un nouveau probl\u00e8me environnemental<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/projects\/lingenierie-conventionnelle-pour-un-nouveau-probleme-environnemental\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>TRC a effectu\u00e9 des essais de SPFA et a mis au point une restructuration d\u2019urgence de l\u2019infrastructure du site afin &hellip;<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                            <\/div>\n                <\/div>\n                <div class=\"col-xxs-12 col-lg-5\">\n                    <div class=\"js-projects-featured-list-slider fx-slider\">\n                                                <div class=\"projects-featured-slider-list-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188.jpg\" class=\"object-fit project-list-card-image\" alt=\"088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188.jpg 2000w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-300x200.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-1024x682.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-768x512.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-1536x1024.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-900x600.jpg 900w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-750x500.jpg 750w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/08\/088350fb-man-filling-a-glass-of-filtered-water-right-from-the-tap-in-the-kitchen-1368715188-700x467.jpg 700w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li class=\"pfas-and-emerging-contaminants\"><a href=\"https:\/\/www.trccompanies.com\/projects-category\/pfas-and-emerging-contaminants\/\" class=\"image-card__category\">PFAS and Emerging Contaminants<\/a><\/li><li class=\"projects-with-purpose\"><a href=\"https:\/\/www.trccompanies.com\/projects-category\/projects-with-purpose\/\" class=\"image-card__category\">Projects With Purpose<\/a><\/li><li class=\"remediation-and-materials-management\"><a href=\"https:\/\/www.trccompanies.com\/projects-category\/remediation-and-materials-management\/\" class=\"image-card__category\">Remediation and Materials Management<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-treatment-evaluation-for-the-maysville-well\/\" class=\"project-list-card-title\">PFAS Treatment Evaluation for the Maysville Well<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-treatment-evaluation-for-the-maysville-well\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>TRC staff installed a water treatment system to remediate and prevent recurrence of PFAS in the Maysville Well in North &hellip;<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"projects-featured-slider-list-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"1953\" height=\"1535\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682.jpg\" class=\"object-fit project-list-card-image\" alt=\"125c87ed-saturated-foliage-river-1016909682\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682.jpg 1953w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-300x236.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-1024x805.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-768x604.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-1536x1207.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-763x600.jpg 763w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/125c87ed-saturated-foliage-river-1016909682-636x500.jpg 636w\" sizes=\"(max-width: 1953px) 100vw, 1953px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li class=\"pfas-and-emerging-contaminants\"><a href=\"https:\/\/www.trccompanies.com\/projects-category\/pfas-and-emerging-contaminants\/\" class=\"image-card__category\">PFAS and Emerging Contaminants<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/projects\/investigating-pfas-in-ground-and-surface-water\/\" class=\"project-list-card-title\">Investigating PFAS in Ground and Surface Water<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/projects\/investigating-pfas-in-ground-and-surface-water\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>With TRC\u2019s research and knowledge into locating the source of PFAS and demonstrating this conclusion to MassDEP, we were able &hellip;<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"projects-featured-slider-list-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"1133\" height=\"800\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination.jpg\" class=\"object-fit project-list-card-image\" alt=\"air-contamination\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination.jpg 1133w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-300x212.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-1024x723.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-768x542.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-850x600.jpg 850w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-708x500.jpg 708w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/air-contamination-700x494.jpg 700w\" sizes=\"(max-width: 1133px) 100vw, 1133px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li class=\"pfas-and-emerging-contaminants\"><a href=\"https:\/\/www.trccompanies.com\/projects-category\/pfas-and-emerging-contaminants\/\" class=\"image-card__category\">PFAS and Emerging Contaminants<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-investigation-at-former-michigan-plating-facility-2\/\" class=\"project-list-card-title\">PFAS Investigation at Former Michigan Plating Facility<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/projects\/pfas-investigation-at-former-michigan-plating-facility-2\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>TRC is helping the current owner address PFAS contamination on the site.<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                                <div class=\"projects-featured-slider-list-item fx-slide\">\n                            <div class=\"project-list-card-item\">\n                                <div class=\"project-list-card\">\n                                    <img decoding=\"async\" width=\"2121\" height=\"1414\" src=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1.jpg\" class=\"object-fit project-list-card-image\" alt=\"GettyImages-1820805377-1\" srcset=\"https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1.jpg 2121w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-300x200.jpg 300w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-1024x683.jpg 1024w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-768x512.jpg 768w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-1536x1024.jpg 1536w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-2048x1365.jpg 2048w, https:\/\/www.trccompanies.com\/wp-content\/uploads\/2024\/09\/GettyImages-1820805377-1-900x600.jpg 900w\" sizes=\"(max-width: 2121px) 100vw, 2121px\" \/>                                    <div class=\"project-list-card__details\">\n                                                                                <ul class=\"hidden-xs-down\">\n                                        <li class=\"assainissement-et-gestion-des-materiaux\"><a href=\"https:\/\/www.trccompanies.com\/fr\/projects-category\/assainissement-et-gestion-des-materiaux\/\" class=\"image-card__category\">Assainissement et gestion des mat\u00e9riaux<\/a><\/li><li class=\"pfas-et-contaminants-emergents\"><a href=\"https:\/\/www.trccompanies.com\/fr\/projects-category\/pfas-et-contaminants-emergents\/\" class=\"image-card__category\">PFAS et contaminants \u00e9mergents<\/a><\/li>                                        <\/ul>\n                                                                                <a href=\"https:\/\/www.trccompanies.com\/fr\/projects\/lingenierie-conventionnelle-pour-un-nouveau-probleme-environnemental\/\" class=\"project-list-card-title\">L\u2019ing\u00e9nierie conventionnelle pour un nouveau probl\u00e8me environnemental<\/a>\n                                        <a href=\"https:\/\/www.trccompanies.com\/fr\/projects\/lingenierie-conventionnelle-pour-un-nouveau-probleme-environnemental\/\" class=\"project-card-redirect-btn\"><i class=\"icon-link\"><\/i><\/a>\n                                        <div class=\"project-list-card__content hidden-md-down\">\n                                            <p>TRC a effectu\u00e9 des essais de SPFA et a mis au point une restructuration d\u2019urgence de l\u2019infrastructure du site afin &hellip;<\/p>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                                            <\/div>\n    \n                <\/div>\n\n            <\/div>\n        <\/div>\n\n        <div class=\"projects-featured__btn hidden-lg\">\n                                <\/div>\n    <\/div>\n<\/section>\n\n<!-- End Block: acf\/innerpage-featured-projects -->\n\n<!-- Start Block: acf\/innerpage-cta-bar -->\n<section class=\"global-cta innerpage-cta cta-light-gradient\">\n    <div class=\"container-fluid\">\n        <div class=\"global-cta-wrapper flush-bottom \">\n                            <div class=\"row\">\n                    <div class=\"col-sm-12\">\n                        <h2>Embrassez le changement<\/h2>\n                    <\/div>\n                    <div class=\"col-sm-12\">\n                        <div class=\"global-cta-content\">\n                            <p>Collaborez avec les praticiens test\u00e9s de TRC<\/p>\n                            <p><a href=\"https:\/\/www.trccompanies.com\/Contact-Us\/\" title=\"Contact Us\" class=\"btn btn-primary\" >Contact Us<\/a><\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                        \n        <\/div>\n    <\/div>\n<\/section>\n\n<!-- End Block: acf\/innerpage-cta-bar -->","protected":false},"excerpt":{"rendered":"<p>Watch this webinar recording from TRC that reveals what\u2019s often missed in Level 2 PFAS data packages, and why it matters. Drawing on real-world findings from Level 4 raw data reviews, our experts spotlight overlooked analytical anomalies, from false positives to interferences, and share strategies to ensure accurate results.<\/p>\n","protected":false},"featured_media":29306,"template":"","tags":[],"news-and-insights-category":[381,384],"services-category":[],"custom_category":[],"class_list":["post-30028","news-and-insights","type-news-and-insights","status-publish","has-post-thumbnail","hentry","news-and-insights-category-videos","news-and-insights-category-events-and-webinars"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>TRC\u2019s Webinar On-Demand: PFAS Analyses: False Positives, False Negatives, and Interferences - TRC Companies<\/title>\n<meta name=\"description\" content=\"Watch this webinar recording from TRC that reveals what\u2019s often missed in Level 2 PFAS data packages, and why it matters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.trccompanies.com\/fr\/insights\/webinar-pfas-analyses-false-positives-false-negatives-and-interferences\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TRC\u2019s Webinar On-Demand: PFAS Analyses: False Positives, False Negatives, and Interferences - 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