Solid Waste Market Signature Projects
Statewide (Michigan) PFOA and PFOS
Landfill Leachate Study In February of 2018, EGLE launched the Industrial Pretreatment Program (IPP) PFAS Initiative to reduce and eliminate discharges of certain PFAS from industrial sources that may pass through wastewater treatment plants. In response, the Michigan Waste and Recycling Association (MWRA) contracted with NTH to conduct a collective study of leachate from landfills in Michigan. NTH’s report for the Michigan Waste and Recycling Association is now being used as a model nationwide on studying impacts of PFOA and PFOS in landfill leachate on WWRF influent. 
Pontiac Collier Road Landfill
Post-Closure Maintenance and Monitoring; PFAS Assessments The City of Pontiac’s Collier Road Landfill was closed in 2006 following operation as a municipal solid waste disposal facility for over 20 years. Since that time, NTH has provided monitoring and maintenance services to ensure compliance with regulatory requirements and to protect public health and the environment working with limited resources to address on-going PA 451 requirements. NTH was provided a proactive approach to site maintenance issues by planning and implementing preventive measures before problems arose and keeping the site in compliance with its Post-Closure Plan and environmental regulations. This includes recent assessments of PFAS groundwater impacts. 
Marquette County Landfill
PFAS Assessment PFAS are present in the leachate of every landfill. Although not covered in the landfill’s current NPDES permit for discharge of treated leachate, it is likely that PFAS will be included in the landfill’s next NPDES permit. To proactively address concentrations of PFAS and other pollutants in their leachate, the Marquette County Solid Waste Management Authority retained NTH to evaluate the landfill’s treatment system and its discharge to identify effective cost competitive method to meet likely PFAS permit limits. NTH is currently working on this project. |
Waste Management Landfill Hydrogeologic Monitoring
Groundwater Monitoring / Reporting Program NTH was retained by Waste Management (WM) beginning in 1998 to complete the Hydrogeologic Monitoring Reports for all of WM’s active and closed solid waste landfills in Michigan. This has included a total of up to 36 individual sites across the state, most of which require reports to be prepared on a quarterly basis. Working with WM staff, NTH has established one of the most efficient groundwater monitoring/reporting programs in Michigan. This has resulted in streamlined hydrogeologic monitoring plans (HMPs) that have reduced parameter lists and well networks at almost every site. 
Perfection Industries
Remedial Investigation, Design and Implementation Perfection Industries experienced a fire at their facility. When the cleanup was completed, agency regulators were concerned that there was a potential for the release of hazardous waste. After the hazardous waste was identified, the U.S. EPA stepped in as the prime regulatory agency. NTH was retained to evaluate if a release had occurred, and design and implement a remedial solution. NTH was able to work closely with the U.S. EPA to identify remediation strategy to meet the regulatory requirements, and also meet the client’s needs for cost containment on this sensitive project. 
Huron Monofill PFAS Compliance
Facility Design & Post-Closure Due Care The Huron Monofill is a closed incinerator ash landfill located on approximately 34 acres is regulated under Part 115 of Michigan’s Act 451, Natural Resources and Environmental Protection Act. NTH’s project team has provided the post-closure due care services for the Huron Monofill since final closure in 2005. Through close coordination with the different stakeholders, the site continues to meet its post-closure obligations consistent with environmental regulations. |