This year McFadden Engineering has been busy with several sustainable projects. Our focus on providing innovative solutions for water and wastewater clients includes multiple projects. Our team chose to highlight two projects that demonstrate our commitment to sustainable engineering and helping our clients achieve their ESG goals in 2024.
In 2022, McFadden Engineering submitted a funding application under the American Recovery Plan Act (ARPA) to upgrade the wastewater treatment system at J.F. Shields High School. While the existing lagoon system was a low-maintenance and effective method of wastewater treatment, persistent algal blooms were causing elevated pH levels and low dissolved oxygen (DO) concentrations in the effluent.
The upgrade was necessary due to insufficient flow and loading in the lagoon system, which led to inefficient treatment and the inability to consistently meet effluent water quality standards. The three-cell lagoon system was effective in reducing carbonaceous biological oxygen demand (CBOD), particularly in the first cell, and ammonia concentrations in the effluent were consistently below 1 mg/L. However, the system struggled to meet regulatory pH and DO requirements, highlighting the need for improvement.
Our team designed a solution to enhance the lagoon system’s efficiency while minimizing changes to the existing structure. Key improvements included:
A portion of the third cell was covered with a polyethylene cover to limit algae growth, and baffles were added to allow settling before discharge. The final effluent is disinfected and aerated before being released into a nearby creek.
These upgrades, completed in September 2024, have significantly improved system performance, maintaining compliance with regulatory requirements since implementation.
McFadden Engineering conducted an environmental evaluation as part of a due diligence process for the replacement of approximately 2.18 miles (11,500 feet) of high-risk, leak-prone cast iron pipes. The project involves installing a 6-inch MDPE plastic pipe between two regulator stations: one located on Old U.S. Highway 431, 0.6 miles North of the State Highway 22 intersection, and the other on County Road 61, 0.56 miles north of U.S. Highway 431.
The Roanoke Utilities Board’s natural gas distribution system contains a significant proportion of high-risk cast iron pipes. Additionally, the project area is regulated by Section 4(f) properties, requiring careful consideration of environmental and community impacts.
The McFadden Engineering team performed a comprehensive review of environmental data and conducted detailed evaluations of:
The evaluation concluded that no significant environmental risks were present, and mitigation measures were outlined for potential concerns during construction. This proactive approach ensured compliance with environmental standards while supporting the replacement of outdated infrastructure.
In 2025 our team will continue our efforts to meet the needs of the environmental community. We look forward to serving our clients. Contact our team today to see how we can help you achieve your sustainability goals in the new year.
As global water demand rises due to population growth, manufacturers must adopt water-efficient practices to prevent scarcity and waste. Water has been crucial to societal development, with significant consumption across industries and municipal use. Furthermore, water conservation is essential in manufacturing because efficient manufacturing processes directly affect resource depletion, but effective water use boosts operational efficiency through reduced costs and waste. Effective water conservation for industrial water facilities is vital for reducing resource depletion and operational costs.
1. Conduct a Water Audit: An audit helps assess current water usage and waste across cooling systems, boilers and other processes. Water audits can include analysis of used water to determine the level of treatment required for reuse. If water is contaminated with organic materials, chemicals or metals while being used for its intended purposes, it may require additional treatment to allow for reuse. Regular audits provide insights for improvement and ensure efficient water use throughout the year, accounting for seasonal variations.
2. Prioritize Process Monitoring: Continuous system monitoring can identify issues like leaks or inefficiencies before audits, enabling timely intervention. Monitoring pressure, flow, critical water quality parameters and chemical additions help detect unexpected water use spikes, process upsets and potentially identifying system issues. Closely monitoring processes can assist in identifying water loss and assist in determining if the process is operating at its optimal levels. If your equipment suddenly needs more chemicals than before, it is likely using more makeup water. The overuse of makeup water is an indication of a possible source of water loss in the system. McFadden’s team of engineers and scientists can perform professional assessments of systems to detect water loss. These assessments include assembling public site records, leading physical site inspections, conducting interviews and performing additional steps as requested by the client.
3. Implement Water Reuse Technologies: Reusing condensate from boilers and treated blowdown water from cooling towers can reduce reliance on fresh water. Boiler condensate has a low level of solids and contaminants. In other words, facilities likely do not need to treat it to reuse it. Reusing condensate is advantageous because it cuts down on the makeup water required. Air conditioners also create condensate you can reuse for boilers or other processes. Additionally, another potential source of reusable water is blowdown water from cooling towers. Facilities should be aware that blowdown water will have a high level of dissolved solids requiring removal before reuse unless properly treated. McFadden’s team offers the expertise to provide treatment options for these applications so that the water can be reused or even discharged to meet permit limits. McFadden can also assist with the development of policies and procedures for reuse of these waters at facilities.
Overall, industrial activity consumes a significant amount of water through both operational processes and human use. Without the proper guidance from professionals like McFadden’s team of engineers, this will lead to higher financial, operational and environmental costs. Facilities should consider looking for guidance on strategies to improve water efficiency. By enhancing water efficiency, facilities can boost productivity, sustainability and resilience while lowering environmental impact. For example, in conducting a water audit McFadden’s engineering team can identify areas for waster reuse could be implemented. Contact us today to see how our team can reduce water usage for your facility!
Municipalities are seeking cost-effective and innovative strategies for stormwater management infrastructure investments. In many cases, retaining water on-site through green stormwater infrastructure (GSI) proves to be more cost-effective than traditional gray infrastructure. McFadden Engineering provides environmental engineering services to aid in the creation of GSI to ultimately reduce flood risks.
Examples of GSI include underground storage, infiltration systems and underground infiltration trenches. Hydraulic modeling can also be used to simulate and prepare for worst case scenarios so that designs can be implemented to mitigate flood risks. Municipalities using green stormwater infrastructure can save hundreds of millions of dollars in flood losses from applying GSI practices as well as other good engineering designs to new developments and redevelopment projects.
A climate study conducted in 2020 found that 5.9 million U.S. properties likely faced significant flood risks, despite being outside FEMA-recognized floodplains. This study compared flood-risk models with the U.S. Federal Emergency Management Agency (FEMA) maps. In response, FEMA implemented the Federal Flood Risk Management Standard (FFRMS) policy on September 9, 2024, to better align federal floodplain designations with current climate science.
The FFRMS policy applies to all FEMA-funded projects. The new rule expands regulatory floodplain coverage and imposes stricter resilience standards for federally funded projects within these floodplains, applying to new constructions, significant improvements, climate adaptation projects and major repairs to damaged structures.
To maintain compliance with FEMA’s FFRMS policy for all FEMA-funded projects, municipalities can build stormwater infrastructure, including GSI, on public lands as needed. GSI enables municipalities to analyze future precipitation rates and evaluate costs, reductions in runoff and co-benefits of various stormwater management scenarios.
GSI can treat urban runoff pollution, replenish groundwater and reduce erosion in headwater streams. Ultimately, GSI provides sustainable solutions with improved air quality, enhanced property values and better social well-being.
McFadden Engineering’s team of water and wastewater experts specializes in providing environmentally sound solutions to solve unique civil and environmental engineering needs. Based in Mobile, Ala. for more than 30 years, McFadden Engineering has worked on projects including municipal, commercial and industrial dischargers. McFadden has a wealth of experience in stormwater management and flood plain modeling to assist clients with stormwater projects. Visit mcfaddenengineering.com for more information.
On the fourth Sunday of every September, World Rivers Day celebrates the world’s waterways. This day honors the multitude of positive contributions of rivers. World Rivers Day was first celebrated in 2005 and is now celebrated by millions of people in more than 100 countries. This day emphasizes river conservation and sustainable management.
There are many services that McFadden Engineering offers that directly impact rivers as the water treated by these services is often directly discharged into rivers. McFadden Engineering designs its services to meet regulatory compliance. Particularly, when an NPDES permit must be considered as part of the system design .
Under the NPDES program, industrial facilities are permitted to discharge stormwater and/or wastewater into surface waters including rivers. McFadden Engineering specializes in evaluating treatment processes across various industries and offering solutions that ensure regulatory compliance while promoting environmental sustainability. Our engineers consult with industries such as food and beverage, pulp and paper, wastewater treatment, oil and gas/drilling and more. Each of these sectors plays a role in affecting the availability of clean water.
McFadden Engineering offers comprehensive environmental engineering services designed to safeguard rivers from the effects of both natural and human activities. Our extensive expertise includes developing best management practices for facility compliance, creating spill response plans for industrial clients and identifying treatment alternatives to meet permitted discharge limits.
Our team values responsibility and commitment to the environment. Every project that McFadden Engineering undertakes is designed to remove contaminants that might be released back into the water cycle from wastewater discharges. McFadden works with customers to obtain permits and to develop treatment processes that safely discharge water to waterways including rivers as a part of our commitment to sustainable engineering solutions.
In celebration of National Water Quality Month, McFadden Engineering spotlights the work our team does to reduce pollution from industrial wastewater. Industrial wastewater is usually very strong and complex in nature and can contain visible pollutants or dissolved chemicals. Before wastewater re-enters the natural water cycle, treatment is required before discharge. Our engineers assist clients in developing treatment processed to reduce contaminants in wastewater. In addition, McFadden Engineering is experienced in helping clients navigate the environmental regulatory permitting process including direct discharge through the National Pollutant Discharge Elimination System (NPDES), reuse permits for sustainable projects, as well as other permit alternatives.
There are various ways to treat industrial wastewater as its properties are dependent on the industry source. Through the NPDES program, industrial facilities are authorized to discharge stormwater and/or wastewater into surface waters. McFadden Engineering specializes in analyzing existing treatment processes across industries and providing solutions that meet regulations for a more sustainable environment. Industries that have consulted our engineers include food and beverage, pulp and paper, wastewater acceptors, oil and gas/drilling and more. Each of these industries has an impact on the availability of clean water. In 2005, the EPA founded National Water Quality Month as a reminder of the importance of preserving our water resources. National Water Quality Month celebrates the commitment we must have to protect clean water for the health of people and the environment.
McFadden Engineering applies a customized process to each unique scenario including modeling and evaluation of the dischargers to develop permit limits, determining the appropriate treatment train to meet the permits limits and compliance with other regulations. The NPDES is the national regulation for industrial sources and the pretreatment program for significant indirect industrial sources, but permits are issued at the state level. If a facility releases pollutants from a point source into the waters of the United States, an NPDES permit is required. As such, McFadden’s team incorporates NPDES permit requirements into its process.
McFadden’s process begins with a system evaluation and compliance review, then moves into planning for optimization of the wastewater treatment system and facilities. From there, the engineers continue to work with clients by assessing how water might be reused in the facility.
The primary goal for McFadden Engineering when working with our industrial wastewater treatment clients is to streamline treatment processes to achieve full compliance. The goal of every treatment project that McFadden Engineering undertakes is to remove contaminants that might be released back into the water cycle from wastewater discharges. When the Clean Water Act passed in 1972, the U.S. government enacted regulations making it illegal to dispose of high amounts of toxic materials into bodies of water. The standard set by these regulations is highlighted during National Water Quality Month through the efforts of sustainable engineering.
National Water Quality Month is celebrated every August as a reminder of the challenges facing water resources and the solutions that can protect this resource such as those provided by McFadden’s team of engineers.
On April 10, 2024, the Environmental Protection Agency (EPA) announced its final ruling on the new National Primary Drinking Water Regulation (NPDWR). Initially proposed in March of 2023, the rule is intended to limit public exposure to harmful “forever chemicals,” known generally as PFAS.
Foregrounded by the Safe Drinking Water Act (SDWA), the new NPDWR ruling outlines legal concentration limits for six PFAS contaminants in public drinking water. The specified contaminants are perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluoro hexane sulphonic acid (PFHxS), perfluorooctanoic acid (PFNA), FRD-903 (HFPO-DA, or Gen-X chemicals). The ruling also extends to blends consisting of two or more of the following contaminants: PFHxS, PFNA, HFPO-DA and PFBS.
All public water works are mandated to implement water quality monitoring by 2027 to demonstrate compliance with Maximum Contaminant Levels (MCLs); systems found exceeding MCLs will have until 2029 to achieve regulatory compliance.
PFAS are entirely man-made chemicals typically found in industrial manufacturing settings. While industrial entities may be responsible for their creation, the cost of their removal falls primarily on the general public; a dynamic the EPA is posed to correct. The NPDWR itself does not outline the consequences of non-compliance, but the ruling is still legally enforceable. The Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) may empower the EPA to focus enforcement and disciplinary actions on significant point source polluters.
McFadden Engineering’s team of water and wastewater experts specializes in providing environmentally sound solutions to solve unique civil and environmental engineering needs. Based in Mobile, Ala. for more than 30 years, McFadden Engineering has worked on projects including environmental permitting for municipal, commercial and industrial dischargers, site assessments and remediation, master planning for utilities, water quality projects and wastewater process design. Visit our website for more information.
Earth Day is the perfect time to reflect on how industries are aligning with sustainability goals, particularly in fields crucial to our infrastructure and environment. At McFadden Engineering, the commitment to embedding sustainability into every project isn’t just a standard—it’s a promise. This blog explores the significance of the sustainability effort mindset in civil and environmental engineering and highlights McFadden Engineering’s dedication to pioneering sustainable practices.
Sustainability in civil and environmental engineering involves practices that do not deplete materials or energy while avoiding harmful impacts on the ecosystem. This discipline integrates design and construction methodologies that prioritize environmental stewardship, resource efficiency and social responsibility. Key principles include minimizing energy use, reducing waste and pollution and preserving the natural environment. Case studies, such as the implementation of green roof systems in urban high-rises or the restoration of natural habitats disrupted by construction, underscore the successful application of these principles in real-world scenarios.
Adopting sustainable practices in engineering can significantly reduce carbon footprints, enhance biodiversity and improve air and water quality. These efforts contribute to combating climate change and promoting a healthier planet. Sustainable engineering practices often lead to reduced operational costs through efficient use of resources and energy. Additionally, these practices can open new markets and increase competitiveness. Incorporating sustainability fosters community involvement and development. It enhances the quality of life and can lead to greater social equity. Despite the benefits, several challenges persist. Technically, integrating new sustainable technologies can be complex and costly at the outset. Economically, the initial investment for sustainable technologies and materials can be higher than traditional ones, though they pay off in the long run. Cultural resistance to change and the traditional “business as usual” approach remain significant hurdles. Overcoming these requires education, transparent communication and community engagement.
To overcome challenges and promote sustainability, it’s crucial to focus on education and awareness. Integrating sustainability principles into the engineering curriculum can equip future engineers with the knowledge and skills to implement sustainable solutions. Furthermore, collaboration with government agencies, non-governmental organizations (NGOs) and other stakeholders is essential to foster policies and practices that support sustainable development. McFadden Engineering is committed to leading such initiatives by actively participating in partnerships and dialogue that promote sustainability.
As we mark Earth Day, let’s reaffirm our commitment to sustainability, particularly in fields like civil and environmental engineering that shape our world’s infrastructure. Reflect on how you can contribute to sustainability efforts in your professional and personal life. At McFadden Engineering, we remain dedicated to our mission of implementing and advancing sustainable practices. Join us in this endeavor to create a more sustainable and prosperous future for all. Together, we can make a difference—one project at a time.
To learn more about cultivating a sustainability mindset in celebration of Earth Day, visit our website and see how we incentivize and promote the importance of adopting a sustainability mindset from a civil and environmental engineering perspective.
McFadden Engineering’s team of water and wastewater experts specializes in providing environmentally sound solutions to solve unique civil and environmental engineering needs. Based in Mobile, Ala. for more than 30 years, McFadden Engineering has worked on projects including environmental permitting for municipal, commercial and industrial dischargers, site assessments and remediation, master planning for utilities, water quality projects and wastewater process design. Visit mcfaddenengineering.com for more information.
World Water Day is an annual United Nations observance day held on the 22nd of March that highlights the importance of fresh water. The day is used to advocate for the sustainable management of freshwater resources. The McFadden Engineering team works daily to assist our clients and community to minimize the impacts of wastewater on our natural resources and develop processes for water quality monitoring and solutions to environmental stressors on our waterways. We have chosen three projects that demonstrate our commitment to sustainable water management.
Environmental awareness, community health and the need for clean water have been the impetus for developing countries to address the problem of inadequate wastewater treatment in both urban and rural communities. Tenwek Hospital is in the Rift Valley Region of Kenya and serves a community of approximately 600,000 households with its 300-bed facility which is the largest rural hospital in East Africa. This facility supports and administers, in addition to the residential patients, a Community Health Program whereby satellite and mobile health care is provided to nearby communities, a School of Nursing and a Physician Residence Program training nationals alongside American and European physicians.
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New River Bayou is in Ascension Parish in Louisiana and ultimately drains to Lake Pontchartrain. As part of the Lake Pontchartrain Basin Restoration Program, Montgomery Watson Harza (MWH) was tasked with identifying and prioritizing the domestic wastewater sources that were the greatest detriment to water quality in the basin. As a sub consultant, McFadden Engineering assisted MWH with developing water quality criteria for evaluating the restoration of New River Bayou as a part of the overall impact on Lake Pontchartrain.
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The McFadden Engineering team works daily to integrate principles of sustainability into every stage of their projects, from site selection to construction techniques and material choices. By employing innovative design and process practices, the McFadden Engineering team has helped their clients optimize water and wastewater management, reduce energy and water consumption and meet embrace and exceed compliance protocols. Recently, the McFadden team was asked to design a vehicle wash station for a local lumber company.
Click Here to Read More About This Project.
McFadden Engineering’s team of water and wastewater experts specializes in providing environmentally sound solutions to solve unique civil and environmental engineering needs. Based in Mobile, Ala. for more than 30 years, McFadden Engineering has worked on projects including environmental permitting for municipal, commercial and industrial dischargers, site assessments and remediation, master planning for utilities, water quality projects and wastewater process design. Visit mcfaddenengineering.com for more information.
Civil engineers are at the forefront of designing sustainable infrastructure solutions that minimize environmental impact while also developing solutions for their clients. Mobile, Alabama-based McFadden Engineering is no exception. The McFadden Engineering team works daily to integrate principles of sustainability into every stage of their projects, from site selection to construction techniques and material choices. By employing innovative design and process practices, the McFadden Engineering team has helped their clients optimize water and wastewater management, reduce energy and water consumption and meet embrace and exceed compliance protocols. Recently, the McFadden team was asked to design a vehicle wash station for a local lumber company.
Jasper Lumber Company (JLC) desired to construct a vehicle wash for facility personnel to wash and clean equipment, limiting site runoff and distribution of pollutants throughout the facility. The vehicle wash area is intended to collect the wash water runoff and treat it before discharging the water to the sewer connection at the facility. Although there were no effluent requirements from the system, JLC wished to treat the wastewater from the vehicle wash before discharge.
McFadden Engineering designed a settling or “mud pit” for the collection of solids generated from vehicle washing activities. From this pit, water is drained to pre-treatment/settling tanks with filtration units to further remove suspended solids from the wash water. An oil-water separator for removal of oil and grease before the treated water flowed to an effluent pump station where the treated water was transferred to the sanitary sewer system.
The client was now able to wash their trucks without contaminating their yard, as well as prevent secondary pollutants from impacting the environment via runoff. As a bonus, the effluent from the wash station went through a voluntary pretreatment process, further assisting wastewater Infrastructure.
To learn more about our extensive background in civil and environmental engineering, click the below services to learn more. If you or a member of your organization wishes to hear more about our services, please visit our website or contact us.
McFadden Engineering provided the following services as part of the project:
McFadden Engineering’s team of water and wastewater experts specializes in providing environmentally sound solutions to solve unique civil and environmental engineering needs. Based in Mobile, Ala. for more than 30 years, McFadden Engineering has worked on projects including environmental permitting for municipal, commercial and industrial dischargers, site assessments and remediation, master planning for utilities, water quality projects and wastewater process design. Visit mcfaddenengineering.com for more information.
In an environmentally conscious world, businesses are increasingly seeking sustainable solutions for their operations. Whether the office is large or small, we have seen a significant increase in businesses making an extra effort to be more eco-friendly. McFadden Engineering would like to suggest practices that can easily be implemented by your business to reduce negative environmental impacts and decrease your organizations environmental footprint.
Light-emitting diodes, otherwise known as LED lights, are commonly considered the most energy efficient and quality lights available. In fact, the Department of Energy states that LED lights use at least 75% less energy than incandescent lights, with a lifespan of up to 25 times longer. Not only do they last significantly longer, making them a cost-effective alternative, but they only produce 20% of their energy as heat. By not emitting more heat than necessary, LED lights can maximize energy efficiency at a cost-effective price. By switching your office to LED lighting, you can reduce your budget and experience much more efficient lighting.
Smart thermostats have been on the market for more than 10 years and continue to improve in both energy savings and cost efficiency. Thermostats are deemed “smart” if they connect to wireless internet allowing the user to remotely make changes in the operational settings. These thermostats also allow for the use of implementing programming and quickly and easily making system adjustments. The most important feature to identify when shopping for a smart thermostat is the “ENERGY STAR” criteria, ensuring that the product meets strict energy efficient criteria set by the U.S. Environmental Protection Agency (EPA) or the U.S. Department of Energy. Data gathered by the E.P.A. shows that thermostats that meet this particular criteria save users an average of 8% on their utility bills.
Additionally, smart thermostats consume significantly less energy by simply turning off the heat or air conditioning on a more regular basis than normal thermostats. Smart thermostats can function without sacrificing comfort by adjusting the temperatures when nobody is using the office space. This energy-saving mode is automatic in many thermostats, however, other capabilities like customizable schedules allow for more user control of your offices’ overall energy savings.
While going completely paperless is an incredibly challenging undertaking and can take and the commitment from team members to properly complete, making the effort to greatly reduce paper usage in the office can be an achievable goal. This reduction can reduce your operating costs, increase your business’s competitiveness in the market, and greatly reduce waste as well. By implementing and incentivizing the transition from paper usage to digital solutions, such as moving all communications to email rather than print or mail correspondence, you can embrace new technology, as well as support sustainability goals. According to Forbes, approximately 26% of waste dumped in American landfills is discarded paper. To make matters worse, rotting paper is a source of methane gas, which the U.S. EPA reports is more than 28 times as potent as carbon dioxide at trapping heat in the environment.
From a financial standpoint, according to Corp! Magazine, businesses in the United States waste up to $8 billion on paper management per year. Your business can take small steps by implementing paperless software that will reduce costs and cut your carbon footprint.
Businesses making efforts to embrace eco-friendliness is no longer a rarity and is becoming an expectation by company leadership and employees. For organizations to be at the forefront of their industries, both large and small, steps must be taken to reduce their carbon footprint and show their desire to be more environmentally friendly.
If you’re interested in learning more about what your business or you as an individual employee can do to support office sustainability, read our blog about workplace recycling for additional steps you can take to be eco-friendly.
McFadden Engineering’s team of water and wastewater experts specializes in providing environmentally sound solutions to solve unique civil and environmental engineering needs. Based in Mobile, Ala. for more than 30 years, McFadden Engineering has worked on projects including environmental permitting for municipal, commercial and industrial dischargers, site assessments and remediation, master planning for utilities, water quality projects and wastewater process design. Visit mcfaddenengineering.com for more information.