{"id":39879,"date":"2025-07-21T08:00:45","date_gmt":"2025-07-21T12:00:45","guid":{"rendered":"https:\/\/www.fondriest.com\/news\/?p=39879"},"modified":"2025-10-06T16:08:38","modified_gmt":"2025-10-06T20:08:38","slug":"flow-photo-explorer-studying-flows-in-the-penobscot-river-basin","status":"publish","type":"post","link":"https:\/\/www.fondriest.com\/news\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm","title":{"rendered":"Flow Photo Explorer: Studying Flows in the Penobscot River Basin"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The flow dynamics of rivers and streams play an essential role in the chemical and physical functions of aquatic ecosystems. In Maine, varying flows in the Penobscot River Basin have impacted the health of the ecosystem, water resource use, and habitat suitability for native species\u2014topics of particular concern to the <\/span><a href=\"https:\/\/www.penobscotnation.org\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Penobscot Indian Nation<\/span><\/a><span style=\"font-weight: 400;\">, who have been protecting and managing the waterway for millennia.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Parts of the Penobscot basin have been monitored by the USGS stream gage network, which covers larger streams and rivers but excludes many of the small streams found on tribal lands.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In addition to frequent discrete water quality sampling of these streams, Angela Reed, Water Resources Planner for the Penobscot Indian Nation, is currently leading efforts to establish a relative flow monitoring network in these smaller, often overlooked, streams.<\/span><\/p>\n<div id=\"attachment_39892\" style=\"width: 950px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39892\" class=\"wp-image-39892 size-full\" src=\"https:\/\/www.fondriest.com\/news\/wp-content\/uploads\/2025\/06\/Reed_IMG_7359_ForWeb.jpg\" alt=\"Jan Paul, Penobscot Nation citizen, rinsing bottle before collecting sample.\" width=\"940\" height=\"627\" srcset=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_IMG_7359_ForWeb.jpg 940w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_IMG_7359_ForWeb-300x200.jpg 300w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_IMG_7359_ForWeb-600x400.jpg 600w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_IMG_7359_ForWeb-768x512.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><p id=\"caption-attachment-39892\" class=\"wp-caption-text\"><span style=\"color: #808080;\">Jan Paul, a Penobscot Nation citizen, rinsing a bottle before collecting a sample. (Credit: Tyler Quiring)<\/span><\/p><\/div>\n<h3><span style=\"color: #808080;\">Flow Photo Explorer<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The <\/span><a href=\"https:\/\/www.usgs.gov\/apps\/ecosheds\/fpe\/#\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Flow Photo Explorer<\/span><\/a><span style=\"font-weight: 400;\"> started in 2021 and, as of April 2025, <\/span><a href=\"https:\/\/content.govdelivery.com\/accounts\/USDOIGS\/bulletins\/3db2be1\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">USGS reports<\/span><\/a><span style=\"font-weight: 400;\"> more than 8 million photos at more than 400 sites and has trained over 60 ranking models, documenting relative flow through staff-led annotation of images taken by cameras stationed in waterways across the country.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are eight stations currently deployed throughout the Penobscot watershed that have environmental field cameras positioned toward the water, facing either upstream or downstream, and snapping a photo of the relative flow and water level every 15 or 30 minutes.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These images are stored in the camera\u2019s SD card and collected every 4-8 weeks. Images are brought back to the office and uploaded to a <\/span><a href=\"https:\/\/www.usgs.gov\/apps\/ecosheds\/fpe\/#\/explorer\/362\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">public database<\/span><\/a><span style=\"font-weight: 400;\">. From there, the images are annotated, identifying high or low relative flow and other conditions such as ice cover in image pairs.\u00a0<\/span><\/p>\n<div id=\"attachment_39889\" style=\"width: 950px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39889\" class=\"size-full wp-image-39889\" src=\"https:\/\/www.fondriest.com\/news\/wp-content\/uploads\/2025\/06\/Reed_DSC_0247_ForWeb.jpg\" alt=\"Jan Paul, Penobscot Nation citizen, scanning a QR code on a sample bottle making digital data entry on the cell phone even faster.\" width=\"940\" height=\"627\" srcset=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0247_ForWeb.jpg 940w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0247_ForWeb-300x200.jpg 300w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0247_ForWeb-600x400.jpg 600w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0247_ForWeb-768x512.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><p id=\"caption-attachment-39889\" class=\"wp-caption-text\"><span style=\"color: #808080;\">Jan Paul, Penobscot Nation citizen, scanning a QR code on a sample bottle making digital data entry on the cell phone even faster. (Credit: Tyler Quiring)<\/span><\/p><\/div>\n<p><span style=\"font-weight: 400;\">Reed explains, \u201c[We\u2019ll be] able to see when things start freezing up, when things start thawing out, how much rain it takes to create what kind of water level, etc.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The images and annotations feed into a deep-learning model that will eventually be able to review and identify relative flow on its own. The goal of the project is to start collecting flow estimates on these smaller streams to document changes over time and better understand temperature variations in the stream.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Thus far, one camera is co-located with a USGS gage station, and all locations have <\/span><a href=\"https:\/\/www.fondriest.com\/onset-hobo-tidbit-v2-temperature-logger.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">HOBO TidbiT<\/span><\/a><span style=\"font-weight: 400;\"> temperature loggers that measure water temperature, with some select sites collecting air temperature data as well. These sites represent a small fraction of the total sites being monitored for stream and air temperature.<\/span><\/p>\n<div id=\"attachment_39882\" style=\"width: 950px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39882\" class=\"size-full wp-image-39882\" src=\"https:\/\/www.fondriest.com\/news\/wp-content\/uploads\/2025\/06\/Reed_Map_Final_ForWeb.jpg\" alt=\"Map of the Penobscot Nation's monitoring station in the Penobscot Watershed.\" width=\"940\" height=\"1216\" srcset=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Map_Final_ForWeb.jpg 940w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Map_Final_ForWeb-232x300.jpg 232w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Map_Final_ForWeb-600x776.jpg 600w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Map_Final_ForWeb-768x993.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><p id=\"caption-attachment-39882\" class=\"wp-caption-text\"><span style=\"color: #808080;\">Map of the Penobscot Nation&#8217;s monitoring stations in the Penobscot Watershed. (Credit: Emma Jones \/ Fondriest Environmental, Inc.)<\/span><\/p><\/div>\n<h3><span style=\"color: #808080;\">Future Flow Monitoring in the Penobscot River<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Over the next year, the Penobscot Indian Nation plans to co-locate another photo station on the East Branch of the Penobscot River. As this site has a new USGS gage, it will provide another site that measures absolute flow to which the camera can be compared and test the capabilities of the model on larger water bodies.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This site will also be included in the helicopter flights collecting thermal infrared imagery using a camera system purchased recently, with the plan of measuring temperatures in a larger area from an aerial view to identify cold-water refuges for fish.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Since some of the sites are remotely located and difficult to access, requiring a snowmobile or ATV and hiking to reach the site, the team is considering an external power supply to minimize the frequency of site visits and prevent data loss if the camera runs out of power.<\/span><\/p>\n<div id=\"attachment_39881\" style=\"width: 950px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39881\" class=\"size-full wp-image-39881\" src=\"https:\/\/www.fondriest.com\/news\/wp-content\/uploads\/2025\/06\/Reed_JanDanSampling_ForWeb.jpg\" alt=\"Jan Paul and Dan Kusnierz collecting samples and entering data into digital forms on cell phone.\" width=\"940\" height=\"629\" srcset=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_JanDanSampling_ForWeb.jpg 940w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_JanDanSampling_ForWeb-300x201.jpg 300w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_JanDanSampling_ForWeb-600x401.jpg 600w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_JanDanSampling_ForWeb-768x514.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><p id=\"caption-attachment-39881\" class=\"wp-caption-text\"><span style=\"color: #808080;\">Jan Paul and Dan Kusnierz collecting samples and entering data into digital forms on a cell phone. (Credit: <a href=\"https:\/\/www.seedlightpictures.com\/the-team\" target=\"_blank\" rel=\"noopener\">Bridget Besaw<\/a>)<\/span><\/p><\/div>\n<p><span style=\"font-weight: 400;\">For a more complete view of the watershed, Reed mentions that the team may add a <\/span><a href=\"https:\/\/www.fondriest.com\/ysi-exo1-multi-parameter-water-quality-sonde.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">YSI EXO1<\/span><\/a><span style=\"font-weight: 400;\"> to a few of the sites for dissolved oxygen, conductivity, turbidity, and pH measurement, as well as <\/span><a href=\"https:\/\/www.fondriest.com\/pme-minidot-dissolved-oxygen-logger.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">PME miniDOTs<\/span><\/a><span style=\"font-weight: 400;\"> at a few other locations.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The model will take two years\u2019 worth of observations (about 2,000 pairs) to be trained, performing better with time as the machine-learning model improves. Continuous annotation and documentation of changing trends, such as climate conditions and the river\u2019s change over time, will help further refine the model.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Given the ever-changing conditions, Reed doesn\u2019t anticipate the Penobscot Nation will stop this kind of monitoring.<\/span><\/p>\n<div id=\"attachment_39888\" style=\"width: 950px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39888\" class=\"size-full wp-image-39888\" src=\"https:\/\/www.fondriest.com\/news\/wp-content\/uploads\/2025\/06\/Reed_DSC_0210_ForWeb.jpg\" alt=\"Jan Paul, Penobscot Nation citizen, walking to a sampling site.\" width=\"940\" height=\"627\" srcset=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0210_ForWeb.jpg 940w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0210_ForWeb-300x200.jpg 300w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0210_ForWeb-600x400.jpg 600w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_DSC_0210_ForWeb-768x512.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><p id=\"caption-attachment-39888\" class=\"wp-caption-text\"><span style=\"color: #808080;\">Jan Paul, a Penobscot Nation citizen, walking to a sampling site. (Credit: Tyler Quiring)<\/span><\/p><\/div>\n<h3><span style=\"color: #808080;\">A Deeper Connection with the Penobscot River<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">While understanding these flows is important for management of the waterway, Reed explains that stewardship of the river runs much deeper for the Nation. \u201cThe Penobscot Nation sees <\/span><a href=\"https:\/\/www.sunlightmediacollective.org\/this-river-is-our-relative\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">the river as a relative<\/span><\/a><span style=\"font-weight: 400;\"> [\u2026]. It\u2019s not just about recreating or experiencing the outdoors\u2014it\u2019s about protecting something much bigger and much more important than that.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">She continues, \u201cThere\u2019s a phrase that you don&#8217;t let your work dictate your life [\u2026] but this is not just a job, it&#8217;s literally everything I believe in.\u201d<\/span><\/p>\n<div id=\"attachment_39886\" style=\"width: 950px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39886\" class=\"size-full wp-image-39886\" src=\"https:\/\/www.fondriest.com\/news\/wp-content\/uploads\/2025\/06\/Reed_Angie_sampling_ForWeb.jpg\" alt=\"Angie Reed sampling the Penobscot River at the site of the former Great Works dam shortly after it was removed.\" width=\"940\" height=\"940\" srcset=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Angie_sampling_ForWeb.jpg 940w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Angie_sampling_ForWeb-300x300.jpg 300w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Angie_sampling_ForWeb-600x600.jpg 600w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Angie_sampling_ForWeb-150x150.jpg 150w, https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_Angie_sampling_ForWeb-768x768.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><p id=\"caption-attachment-39886\" class=\"wp-caption-text\"><span style=\"color: #808080;\">Angie Reed sampling the Penobscot River at the site of the former Great Works dam shortly after it was removed. (Credit: Dan Kusnierz)<\/span><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The flow dynamics of rivers and streams play an essential role in the chemical and physical functions of aquatic ecosystems. In Maine, varying flows in the Penobscot River Basin have impacted the health of the ecosystem, water resource use, and habitat suitability for native species\u2014topics of particular concern to the Penobscot Indian Nation, who have [&hellip;]<\/p>\n","protected":false},"author":42,"featured_media":39892,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,7,8,49,510],"tags":[2320,2643,2641,2640,2642,2524,1888,73],"class_list":["post-39879","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured-articles","category-news","category-newsfeed","category-rivers-streams","category-water-quality","tag-flow","tag-flow-monitoring","tag-penobscot-indian-nation","tag-penobscot-river","tag-penobscot-river-basin","tag-resource-management","tag-river-monitoring","tag-usgs"],"remote_post_permalink":false,"remote_post_featured_image":false,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Flow Photo Explorer: Studying Flows in the Penobscot River Basin<\/title>\n<meta name=\"description\" content=\"The USGS&#039; Flow Photo Explorer project records flow conditions at over 400 sites in the country, eight of which are providing key data in the Penobscot River Basin.\" \/>\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.fondriest.com\/news\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Flow Photo Explorer: Studying Flows in the Penobscot River Basin\" \/>\n<meta property=\"og:description\" content=\"The USGS&#039; Flow Photo Explorer project records flow conditions at over 400 sites in the country, eight of which are providing key data in the Penobscot River Basin.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fondriest.com\/news\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm\" \/>\n<meta property=\"og:site_name\" content=\"Environmental Monitor\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-21T12:00:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-06T20:08:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/news.fondriest.com\/wp-content\/uploads\/2025\/06\/Reed_IMG_7359_ForWeb.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"940\" \/>\n\t<meta property=\"og:image:height\" content=\"627\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Samantha Baxter\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Samantha Baxter\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm\"},\"author\":{\"name\":\"Samantha Baxter\",\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/#\\\/schema\\\/person\\\/341002b379397e09112d3edcefc25a50\"},\"headline\":\"Flow Photo Explorer: Studying Flows in the Penobscot River Basin\",\"datePublished\":\"2025-07-21T12:00:45+00:00\",\"dateModified\":\"2025-10-06T20:08:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm\"},\"wordCount\":920,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/flow-photo-explorer-studying-flows-in-the-penobscot-river-basin.htm#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/news.fondriest.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/Reed_IMG_7359_ForWeb.jpg\",\"keywords\":[\"flow\",\"flow monitoring\",\"Penobscot Indian Nation\",\"Penobscot River\",\"Penobscot River Basin\",\"resource management\",\"river monitoring\",\"USGS\"],\"articleSection\":[\"Featured Articles\",\"News\",\"Newsfeed\",\"Rivers &amp; 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(Credit: Tyler Quiring)\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/#website\",\"url\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/\",\"name\":\"Environmental Monitor\",\"description\":\"Application and technology news for environmental professionals\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.fondriest.com\\\/news\\\/#\\\/schema\\\/person\\\/341002b379397e09112d3edcefc25a50\",\"name\":\"Samantha Baxter\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e97f39daccd348464e975668c310d7f7a93150e1d47044f68a24f83153c25e8?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e97f39daccd348464e975668c310d7f7a93150e1d47044f68a24f83153c25e8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e97f39daccd348464e975668c310d7f7a93150e1d47044f68a24f83153c25e8?s=96&d=mm&r=g\",\"caption\":\"Samantha Baxter\"},\"description\":\"Samantha M. Baxter is a Writer and the Managing Editor for Fondriest Environmental. She received B.A. degrees in Integrated Language Arts Education and Political Science at Wright State University. She was hired as an intern in the spring of 2022 and has continued to work as a writer and editor for the Environmental Monitor, FishSens Magazine and other Fondriest Environmental pages. As a writer, Samantha works with researchers from across the country to craft stories that highlight their work and its impacts. As an editor, Samantha works with graphic designers, fellow writers, and various environmental professionals to create unique content for Fondriest Environmental. 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