Hazen and Sawyer

Hazen and Sawyer

Environmental Services

New York, NY 20,391 followers

Achieving water quality and quantity objectives with practical, forward-thinking solutions that return lasting benefits.

About us

Since 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. Our range of services encompasses the planning, design, and construction management of water and wastewater-related projects – from clean water treatment, storage, and distribution to wastewater and stormwater collection, treatment, and reuse. Our focus brings us exceptional challenges – such as the largest drinking water UV disinfection installation in the world, upgrade of major wastewater treatment plants to reduce nutrient discharges to sensitive receiving waters, and recharging vital drinking water aquifers with highly-treated wastewater effluent, renewing a valuable resource. Our focus also makes us home to many of the world’s most knowledgeable and experienced environmental engineers and scientists, each seeking a challenging and rewarding career while making an important contribution to the communities in which we work. Our expert process groups contribute to the latest research and determine how to apply the most effective and efficient technologies to engineer solutions to your challenges. Your goals are our goals, and we offer the insight and experience needed to achieve and exceed them. If you have a water engineering challenge, Hazen and Sawyer has your solution.

Industry
Environmental Services
Company size
1,001-5,000 employees
Headquarters
New York, NY
Type
Privately Held
Founded
1951
Specialties
Drinking Water, Wastewater, Wet Weather, Water Resources, Energy and Sustainability, Conveyance, Program and Construction Management, Applied Research, and Water Reuse

Locations

Employees at Hazen and Sawyer

Updates

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    20,391 followers

    Today, the Imagine a Day Without Water initiative from the US Water Alliance is celebrating 10 years of education and action to create awareness around the importance of water in our daily lives. While many people need to use their imaginations to envision what a day without water would look like, reliable access to safe water is a critical issue in many communities across the country and worldwide. We hope you’ll join us as we reflect today (and every day) on the importance of ensuring safe water for all and the ways that every person can help make that goal a reality. Discover more here: https://lnkd.in/eqG7-T8g

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    How can Water Resource Recovery Facilities (WRRFs) boost capacity and efficiency—without breaking the bank? Densified Activated Sludge (DAS) is proving to be part of the answer. Pilot testing with Metro Water Recovery showed DAS can double secondary clarifier capacity compared to conventional methods. What else could full-scale DAS unlock for WRRFs? Learn more here: 👉 https://lnkd.in/giPQiVpW #AllThingsWater #WaterResourceRecovery

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    20,391 followers

    🚌 The fall career fair roadshow continues! Hazen representatives are appearing at college career fairs nationwide over the next few weeks and our next batch of upcoming stops is listed below. Join us if you can! And see our current openings any time at this link 👉 https://lnkd.in/dhN3MNrU GMU ASCE Fair - 10/8 San Diego State - 10/9 University of AL Birmingham - 10/9 University of Louisville - 10/9 University of Florida - 10/10 Morgan State - 10/10 The City College of New York - 10/10 University of the Pacific - 10/10  Virginia Tech - 10/15 Utah State University - 10/15 #allthingswater #workwithapurpose #careerfair

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    💧 What U.S. city is reducing its reliance on imported water by ramping up potable reuse? 🔔 Los Angeles. As climate change intensifies droughts, LA’s reliance on imported water has grown riskier. That’s why the Los Angeles Department of Water and Power (LADWP) partnered with the Los Angeles Bureau of Sanitation (LASAN) to build a 20 mgd Advanced Water Purification Facility at the Donald C. Tillman Water Reclamation Plant.   The facility will produce enough recycled water for 250,000 people—and a chance to strengthen LADWP and LASAN’s relationship ahead of even bigger joint potable reuse projects. https://lnkd.in/gTWAAmCr Pictured: The Japanese Garden at Tillman.

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    20,391 followers

    🌎 One of the first plants in the world to operate the next-gen nutrient removal process known as PANDA (partial nitrification-denitrification-anammox), the Noman M. Cole Jr. Pollution Control Plant in Fairfax County, VA is making history. 🐼 What makes PANDA so revolutionary? It dramatically cuts energy consumption while efficiently treating nitrogen, a critical component in water quality management, using colonies of reddish-colored anammox bacteria. 💧 The plant is still refining the new system with Hazen’s help. But it has already seen promising initial savings, and the successful startup marks a paradigm shift in wastewater treatment. 💡 Check out how tapping into next-gen nutrient removal processes is creating new possibilities for energy efficiency and wastewater resource recovery. https://lnkd.in/e9zGbCNg #PANDA #Wastewater #AllThingsWater

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    20,391 followers

    📚 School is back in session and Hazen is back on the road! Our representatives are appearing at college career fairs nationwide over the next few weeks and our next batch of upcoming stops is listed below. Join us if you can! And see our current job openings any time at this link 👉 https://lnkd.in/dhN3MNrU Columbia University - 9/27 University of Kentucky - 9/27 Manhattan College - 10/1 UVA Dalla Data Analytics Night - 10/2 Rose Hulman - 10/2 Alabama A&M - 10/3 ODU - 10/3 The Citadel - 10/7 WEFTEC - 10/7 #allthingswater #workwithapurpose #careerfair

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    20,391 followers

    🔮 What will the next-generation of wastewater nutrient removal look like? You don't need a crystal ball. Just checkout these two pilot projects in LA. 🌴 ⚡️ In the world of wastewater, nutrient removal tends to be an energy- and chemical-intensive process. Next-gen approaches can reduce those costs, simplify operations, and increase treatment capacity. 💧 Hazen partnered with the Los Angeles County Sanitation Districts' (LACSD) on two innovative nutrient removal pilots—one using densified activated sludge (DAS) and another using partial nitrification-dentrification-anammox (PANDA)—to see if they could achieve low nutrient targets while saving money. 📈 The results? These new processes show promise in saving millions in capital expenses compared to traditional biological nutrient removal systems. 🌇 Learn more about how these projects are helping transform the future of wastewater nutrient removal: https://lnkd.in/eiKV46V4

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    20,391 followers

    ❓ Can EPA’s required LCRR notifications be an opportunity to strengthen relationships with your customers? 👷♂️ Eddie Torres (below left) thinks so. As a master plumber for Denver Water, he didn't just remove thousands of lead service lines for customers of all stripes. He spent time with them in their homes and yards, helping them understand lead removal work and patiently answering their questions. 🏁 We asked utility leaders (and Torres, who just joined Hazen) how to unlock the opportunities in LCRR notification requirements. Here's what they shared: https://lnkd.in/dFqd_fUi #AllThingsWater #LCRR

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    20,391 followers

    As the Association of State Dam Safety Officials (ASDSO) kicks off its 40th(!) annual conference next week in Denver, CO, we're reminded that dam safety is a shared responsibility. Maintaining and fortifying dams is essential for water supply, flood control, irrigation, and hydropower. It takes collaboration and hard work to safeguard these critical—and often visually stunning—structures. One such example is the Savage River Dam in Maryland, where Hazen helped the Upper Potomac River Commission replace its gate system on an emergency schedule. The gates control 6.3 billion gallons of water used by hundreds of thousands of people. Here's to the ongoing collaboration that ensures the safety and resilience of our dams for generations to come. https://lnkd.in/eMn9SGJS #DamSafety #AllThingsWater #ASDSO

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    20,391 followers

    🎉 We are thrilled to share that an article co-authored by seven Hazen experts was selected as a 2024 winner of the prestigious Gascoigne Wastewater Treatment Plant Operational Improvement Medal! The award, which will officially be given at WEFTEC 2024, recognizes exciting advancements in water knowledge and practice. The article delves into how densified activated sludge (DAS) can improve sludge settleability while allowing for increasing capacity ratings of existing infrastructure, enabling utilities to get the most out of limited facility footprints. Congratulations to the authors, including Ronald Latimer, Alonso Griborio, Paul Pitt, Wendell Khunjar, Gayathri Ram Mohan, PhD, PE, Haley Noteboom, and Yewei Sun, all from Hazen, and David Jones and Melissa Meyer, PE from the Gwinnett County Government Department of Water Resources. Learn more about this important work here: https://lnkd.in/gD3mzX6D #allthingswater #WEFTEC #DAS

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Funding

Hazen and Sawyer 1 total round

Last Round

Grant

US$ 130.1K

See more info on crunchbase