Walden manages environmental concerns on a daily basis, and we are the best-equipped
team to tackle the most challenging environmental problems. We are staffed with highly experienced environmental engineers, geologists, and hydrogeologists who have the knowledge and skill to help our clients achieve and maintain compliance in a cost-effective manner. By hiring Walden, you can avoid violations and costly environmental penalties.
Our environmental consulting services include but are not limited to:
Phase I and Phase II Environmental Site Assessments
Buying or selling a property? Contact Walden for your environmental due diligence needs. Although the property you plan to purchase may appear ideal at first glance, environmental problems may be lurking. Walden’s professionals perform Phase I/II Environmental Site Assessments to protect clients from taking on onerous environmental liabilities. A Phase I ESA is a comprehensive property evaluation which includes a site inspection, historical site review, and evaluation of regulatory databases. When a Phase I ESA identifies potential environmental concerns, a Phase II investigation is essential to characterize these issues. Call Walden to protect your interests in property transactions.
Air Permitting, Monitoring and Compliance
Emissions of particulate matter and hazardous compounds are regulated by Federal, State and local agencies. Walden’s experts know the ins and outs of the air quality regulations. We can help you obtain the air permits needed for your operations, and then perform the monitoring and reporting required to comply with your permit. Call Walden today to discuss air quality compliance at your facility.
Auto Repair Shop Compliance
Walden’s engineers have developed compliance programs for many auto repair and vehicle maintenance facilities. Automotive fluids, waste oils, paints and other hazardous materials used in these repair shops must be stored, handled and disposed of in accordance with specific regulations. Contact Walden to ensure that your facility has the required permits and environmental protections in place to avoid penalties.
Cost Estimating and Value Engineering
Cost is often the primary factor in determining whether a project can move forward. Clients always want a project to be cost-effective, resulting in a benefit to cost ratio greater than one. Walden prepares cost estimates for ranges of alternatives to support decision making based on value in a variety of situations, including contractor selection and justification for construction or remediation projects. Contact Walden today for help with your cost estimating needs.
Geophysical Sensing Surveys
When characterizing a site, it is imperative to perform a geophysical sensing survey using equipment such as a ground penetrating radar instrument to identify buried obstructions. Walden coordinates these surveys to locate underground utilities, storage tanks, building foundations and other structures. Knowing the locations of underground features before starting a subsurface investigation or site development project is especially important in order to help the work run smoothly.
Soil, Groundwater, and Soil Vapor Intrusion Investigations
Walden performs investigations to characterize soil, soil vapor, and groundwater conditions at sites ranging from small fuel spills to Superfund sites. We develop sampling investigation work plans detailing sampling locations and procedures; coordinate with drilling contractors and laboratories; collect the field samples; evaluate the results; and prepare summary reports to involved regulatory agencies as appropriate. At Walden, we tailor investigations based on site characteristics and project objectives to ensure a cost-effective approach.
Remedial Action Plans and Implementation
After the nature and extent of contamination at a site are defined, Walden evaluates potential alternatives to achieve the remedial action objectives for the project. Based on this evaluation, Walden develops a Remedial Action Plan describing the recommended remediation option, representing the most appropriate alternative to achieve the objectives in a cost-effective manner. Upon approval of a Remedial Action Plan, the selected alternative is designed and implemented by Walden. Remediation projects completed by Walden include soil excavation, dewatering, soil vapor extraction/air sparging, sub-slab depressurization, groundwater extraction/treatment, and long-term groundwater monitoring. Contact Walden to discuss your site remediation needs.
Engineering Design, Bidding and Construction Management
Walden’s engineers have designed many projects including remediation systems, landfill caps, storage tanks, fueling systems, fleet management systems, and emergency generators. We understand the regulations and standards that apply to the engineering designs. We prepare technical specifications for our designs and manage the contractor bidding process for our clients. During construction, Walden provides field oversight of contractor activities to ensure that the approved design and specifications are followed. Walden’s involvement in the entire design/construction process protects our clients’ interests and avoids costly contractor change orders.
Hazardous Waste Reporting
If your facility generates and stores hazardous wastes in quantities above regulatory thresholds, you must comply with RCRA reporting requirements. Storage requirements and the extent of reporting varies depending on whether the facility is defined as a large quantity generator, small quantity generator, or conditionally exempt small quantity generator. More restrictive requirements apply to facilities that handle acutely hazardous wastes. At Walden, we help our clients comply with reporting requirements, and when possible, limit the quantities of wastes on-site to reduce reporting and associated costs.
Environmental Compliance Audits
Walden’s engineers, geologists and environmental scientists work within the complex regulatory framework on a daily basis. We have the expertise and resources to assist clients achieve and maintain regulatory compliance. Rather than sitting back and hoping that your facility will not be inspected, take action now. Call Walden to schedule an environmental compliance audit today to head off potential violations and fines. We will review your facility and operations through the eyes of an inspector, and based on our observations will develop a plan to address items found to be out of compliance.
Vibration, Air and Odor Assessments
If your facility’s operations generate vibrations, noise, odors, dust and other emissions, Walden can help you comply with monitoring and reporting requirements. These items have the potential to impact public health and quality of life. Therefore, testing is performed to verify that the levels of vibration, odors and emissions are within acceptable limits.
Recently, a number of emerging contaminants have been detected during routine groundwater monitoring activities. Of particular concern is the detection in drinking water supplies of certain compounds, including PFOA, PFOS and 1,4-dioxane. Although these chemicals are known threats to human health, USEPA and the States have not established individual water quality standards limiting concentrations in groundwater and surface water. Walden’s staff is experienced in sampling for these emerging contaminants and can help you interpret the data and select appropriate treatment technologies if needed.
RCRA Contingency Plans
Walden prepares RCRA Contingency Plans for clients as required by the regulations. These plans detail the procedures to be followed by the facility in the event of an emergency. Contact Walden to discuss how we can help you
SEQR/NEPA Environmental Review
Many types of site development and modification projects must be approved by municipalities or permitting agencies. The approval process often includes an environmental review to comply with SEQR/NEPA requirements and characterize the potential impacts associated with the project. Walden’s experts understand the environmental review process and will identify the permits and other considerations that factor into the determination of the impacts posed by our clients’ planned projects. Depending on the project specifications, Walden’s environmental reviews result in findings of no significant impact (FONSI) or recommendations for a full environmental impact statement.
Solid Waste Permitting
Walden’s engineers have assisted many clients wade through the detailed solid waste permitting process. We have obtained permits for waste transporters, transfer stations and disposal facilities. Walden monitors changes to the solid waste regulations and advises clients of the impacts such modifications have on facility operations. We have been deeply involved in the on-going NYSDEC Part 360 sold waste regulations planning process, advocating for our clients. Contact Walden to discuss your solid waste permitting needs.
Chemical Bulk Storage and Spill Prevention Plans
Walden has broad experience in evaluating chemical bulk storage systems for regulated substances. We understand the secondary containment requirements and have designed many CBS systems. Walden prepares spill prevention plans in accordance with the regulations and explains the provisions to client personnel responsible for chemical bulk storage. Call Walden to schedule an inspection of your facility to evaluate CBS compliance.
Walden works with clients to ensure compliance with the Federal and State wastewater and storm water discharge requirements. The NPDES/SPDES programs limit the levels of certain contaminants that can be discharged to surface waters and groundwater. Walden can help you obtain NPDES/SPDES permits as needed for your operations or construction activity.
Underground Injection Control
At Walden, our engineers and geologists assist clients in complying with USEPA’s UIC regulations which prohibit discharges to underground injection wells. We understand what structures are regulated by the UIC program and coordinate cleaning and abandonment activities to bring facilities into compliance. Call Walden today to discuss your UIC project concerns.
Walden works with many municipalities to assist them in compliance with the municipal separate storm sewer system (MS4) requirements. We conduct facility inspections and evaluate operating practices in terms of impacts to stormwater collection and discharge systems. Walden recommends improvements to housekeeping, recordkeeping and enforcement practices to minimize illicit discharges. We promote public education and involvement in MS4 programs. Walden also prepares annual MS4 reports on behalf of our clients to satisfy reporting requirements.
As the Town of Hempstead’s primary environmental consultant since 1995, Walden always tries to improve Town operations, manage costs, gain regulatory compliance, foster a good working relationship with regulators, and ensure projects’ budgets and schedules are met. Walden’s staff are qualified and committed to providing excellent service. "
John GibilaroSupervisor of Building Operations Town of Hempstead, NY
Walden has served us for more than a decade on our compliance and tank needs. They always complete their work in a professional manner and in the highest quality. From regulatory agency interaction, to spill response and tank permitting, their engineering staff is always responsive, thoughtful, and confident – I look forward to continue working with them in the future. "Commissioner Municipal Water Supplier, Long Island, NY
Fantastic document! Just did my first full read through and I have to tell you – this was a great read. Honestly, you guys did an amazing service for this client. You seem to be a true partner for them. Excellent technical work – well written. "Unsolicited feedback from a fellow engineering consultant regarding Walden's report summarizing a drainage study completed for a local Village
Some of our Clients:
MOSF Cost Evaluation
Walden performed a cost benefit analysis for the conversion from Number 6 Fuel Oil to Ultra Low Sulfur Diesel at a Major Oil Storage Facility (MOSF).