Carollo Engineers

Carollo Engineers

Environmental Services

Walnut Creek, California 25,155 followers

Water is our focus, our business, and our passion

About us

Carollo Engineers is the largest firm in the United States dedicated solely to water related engineering--it's all we do. Since 1933, this single-minded focus has allowed us to make some unique commitments to both clients and staff. It has opened the door to the very best talent in the water industry, innovative water solutions, unparalleled client service, and above all, a collaborative and collegial working environment that makes us a great company to work with, and for. The fact that this message is as relevant today as it was back in the 1930s is a reaffirmation of the core character and values of our company. The pressing challenges of today’s water industry require the concentrated focus provided by a specialist firm – one that is passionate about water, and welcomes the obligation to get the most out of this precious resource. We are that firm. We invite you to join us in our exploration of the issues, challenges, and advances in our industry. You can find out more about Carollo at our website (Carollo.com) or find us on Facebook and Twitter.

Industry
Environmental Services
Company size
1,001-5,000 employees
Headquarters
Walnut Creek, California
Type
Privately Held
Founded
1933
Specialties
Water Treatment, Wastewater Treatment, Energy, Sustainability, Integrated Water Resources, Research and Development, Water Reclamation/Reuse, Construction Management, Infrastructure, Business Solutions, Program Management, Alternative Project Delivery, and Resilience

Locations

Employees at Carollo Engineers

Updates

  • Have you had the chance to get to know I-FLOAT? Carollo’s Inflatable Fast and Lightweight Off-Gas Analysis Technology (I-FLOAT) is redefining how wastewater treatment facilities approach aeration efficiency and greenhouse gas (GHG) monitoring. With aeration accounting for over 50% of energy use in wastewater treatment, optimizing these processes is critical. I-FLOAT's lightweight, portable design and real-time monitoring capabilities provide an innovative solution for facilities seeking to improve energy efficiency while accurately tracking Scope 1 emissions. This system is already delivering measurable results, enabling facilities to benchmark performance and implement strategies that reduce both energy consumption and emissions. Its advanced features include rapid deployment, cloud-connected remote monitoring, and real-time data collection, offering a streamlined approach to optimizing wastewater operations. Discover how I-FLOAT can help your wastewater treatment facility: https://lnkd.in/gq_N5sd7

  • Carollo Engineers reposted this

    View profile for Rashi Gupta, graphic

    Wastewater Practice Director; Senior Vice President; Senior Project Manager at Carollo Engineers

    Our PFAS team has been hard at work parsing the Draft Sewage Sludge Risk Assessment for PFOA and PFOS. This technical bulletin summarizes some key takeaways and what this assessment means for utilities. For questions or more information, please reach out to me or Kyle Thompson, PhD, PE. In the meanwhile, I will search for a version of Severance technology that makes me forget PFAS for a while. 😊

    View organization page for Carollo Engineers, graphic

    25,155 followers

    This week, the US Environmental Protection Agency (EPA) released its Draft Sewage Sludge Risk Assessment for PFOA and PFOS, offering the agency’s insights into the potential risks associated with PFAS in biosolids. This draft quantifies the potential risks of land application and surface disposal of biosolids on families living on or near areas where biosolids have been applied or disposed. This assessment does not reflect risks to the general population, and while incineration of biosolids was qualitatively considered, risks were not quantified due to lack of data. The EPA’s report and supporting fact sheets provide guidance for wastewater utilities, farmers, and state water agencies. While this risk assessment does not yet set enforceable limits, it's a crucial indication of potential future regulatory direction. The draft is now open for a 60-day public comment period ending March 17, 2025, offering a valuable opportunity for industry professionals, regulators, and the public to provide feedback and shape the future of PFAS risk reduction and biosolids management. This technical bulletin from Carollo's PFAS and Biosolids experts summarizes key findings of the risk assessment and what it means for utilities. Read the full draft risk assessment and access supporting materials at: https://lnkd.in/e8e-RZKh

  • This week, the US Environmental Protection Agency (EPA) released its Draft Sewage Sludge Risk Assessment for PFOA and PFOS, offering the agency’s insights into the potential risks associated with PFAS in biosolids. This draft quantifies the potential risks of land application and surface disposal of biosolids on families living on or near areas where biosolids have been applied or disposed. This assessment does not reflect risks to the general population, and while incineration of biosolids was qualitatively considered, risks were not quantified due to lack of data. The EPA’s report and supporting fact sheets provide guidance for wastewater utilities, farmers, and state water agencies. While this risk assessment does not yet set enforceable limits, it's a crucial indication of potential future regulatory direction. The draft is now open for a 60-day public comment period ending March 17, 2025, offering a valuable opportunity for industry professionals, regulators, and the public to provide feedback and shape the future of PFAS risk reduction and biosolids management. This technical bulletin from Carollo's PFAS and Biosolids experts summarizes key findings of the risk assessment and what it means for utilities. Read the full draft risk assessment and access supporting materials at: https://lnkd.in/e8e-RZKh

  • PFAS regulations are one of the most pressing topics in the water industry, and the conversation is clearly resonating. In fact, WaterWorld Magazine recently named the Talking Under Water podcast episode "What do the new PFAS MCLs mean for the water industry?" as their most-listened-to episode of 2024. This episode features insights from four industry leaders, including Carollo’s national PFAS lead Kyle Thompson, PhD, PE. The discussion dives into the EPA’s historic announcement of Maximum Contaminant Levels (MCLs) for six PFAS contaminants—the first new MCLs in over 20 years—and what this means for water professionals. We’re thrilled to see this critical conversation recognized and proud of Kyle’s contributions to advancing understanding of PFAS challenges and solutions. Read the full article and explore the top 10 episodes here: https://lnkd.in/eSiYz6X2

    Talking Under Water's top 10 podcasts of 2024

    Talking Under Water's top 10 podcasts of 2024

    waterworld.com

  • Coastal communities like the Florida Keys are at the forefront of the fight against climate change and extreme weather. A recent article in the Water Desalination Report highlights how a new seawater reverse osmosis (SWRO) facility on Stock Island, Florida is leading the way with advanced technology and climate-ready engineering. The facility is built to endure Category 5 hurricanes, flooding, and rising sea levels. Its elevated infrastructure, durable materials, and backup power generators ensure uninterrupted operation even in extreme conditions. Additionally, its smaller feedwater pumps and energy recovery devices improve efficiency by significantly reducing energy consumption while doubling the production capacity of its predecessor. This state-of-the-art project provides a sustainable and reliable water supply for the Florida Keys, setting a new standard for resilient water infrastructure in coastal communities. Learn more about the innovative design and technology behind this facility: https://lnkd.in/gYbmZVyr

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  • San Francisco’s Southeast Treatment Plant (SEP) is undergoing a $718-million headworks upgrade as part of a $3-billion investment in the city’s wastewater system. Featured in Engineering News-Record California, the project addresses urban infrastructure challenges with innovative vertical construction and advanced engineering solutions. Engineered to handle 250 million gallons per day, the facility is designed to withstand earthquakes and sea-level rise, while improving efficiency and grit removal. Despite a tight 31,500-square-foot footprint, Carollo’s creative planning and vertical design maximized space, reduced odors, and earned an Envision Gold award for sustainability. Discover how this project is setting new standards for resilient wastewater infrastructure: https://ow.ly/Ajpr50Uvlvc

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