Industrial Stormwater Management
MFA works with industries to develop adaptive stormwater and wastewater management solutions to challenging environmental regulations, permit requirements, and liabilities. MFA assists clients with NPDES permit compliance, including implementation of cost-effective BMPs and treatment measures, stormwater monitoring, inspections and reporting. MFA’s stormwater system design experience ranges from Low Impact Development (LID), including rainwater harvesting and vegetated swales, to advanced multi-stage treatment systems.
Our industrial stormwater services include:
- NPDES Permit Compliance
- Stormwater Pollution Control Plans
- Engineering Reports
- Best Management Practices (BMPs)
- Water Quality Monitoring, Inspections and Reporting
- Conveyance and Treatment Systems Design
- Stormwater Low Impact Development Design
- Treatability Studies and Alternatives Analysis
- Mixing Zone Studies and Outfall Design
- Source Control Evaluations and Recontamination Evaluations
- Stormwater Infrastructure Assessments and Cost Analyses
- Construction Bid Administration and Oversight
- Expert Witness Testimony and Technical Support for Clean Water Act Lawsuits
Stormwater Management at a Barge Manufacturing Facility
Managing stormwater at an active barge manufacturing facility and remediated brownfield, located along the bank of the Willamette River in downtown Portland, required a design that met both NPDES Permit requirements and remedial source control goals. These objectives were met through a combination of Low Impact Development (LID) techniques and advanced treatment technologies.
MFA designed a large infiltration facility to manage stormwater from a large portion of the operational area, significantly decreasing the volume of stormwater discharged to the river and reducing the potential for recontamination of a recently-completed remedial sediment cap. The reduced frequency of stormwater discharges has decreased the cost of stormwater monitoring and reporting, while allowing for continued barge building operations.
MFA also designed three filtration systems to treat stormwater from the rest of the facility, consistent with industrial stormwater permit requirements. Passive, reactive filtration is used to treat runoff from a large barge manufacturing building roof as well as an outdoor manufacturing area. Portable filtration units were designed to treat runoff from the outdoor barge assembly area to facilitate periodic relocation of the filters during barge launches.
MFA also provides on-call compliance services for this facility, including stormwater sampling and reporting.