Stormwater Maintenance

Stormwater, Lake, and Pond Services

Hantho Specializes in Facility Maintenance. We provide a turn-key solution to Stormwater Maintenance.

We offer inspections, installation, and maintenance services for all Stormwater and runoff structures and will keep your system working as designed and intended to operate in compliance with all regulatory agencies. Hantho is experienced in compliance and knowledgeable on the design and function of every type of stormwater systems and BMPs.

Our environmental stormwater technicians will inspect your stormwater structures, propose any necessary corrective actions, and provide you with inspections reports for your maintenance records. If needed, we will provide a quote to conduct the required work on the structures to meet all of the necessary stormwater compliance standards. Hantho can also represent you and on your behalf negotiate variance changes to your BMP with municipalities if the BMP was not designed or does not function as originally intended.

Our approach provides stormwater treatment system owners with a proven process to ensure performance and regulatory compliance. Contact our team to schedule an inspection, maintenance, or a complimentary Stormwater Compliance Consultation: (763)-477-5011 or

  • Assessment, Repair, and Maintenance
  • Bio-detention Ponds
  • Bioretention Repair
  • Catch Basins
  • Cattail & Willow Removal
  • Construction Phase Erosion and Sediment Control
  • Construction Services
  • Detention/Retention Ponds
  • Drainage Channels
  • Dry Well Maintenance
  • Erosion & Slope Repair
  • Full Site Construction Capabilities
  • Grading, Excavating, & Compaction
  • Grates and Proprietary Grate Inserts
  • Green Roofs
  • Infiltration Trenches
  • Invasive Vegetation Control
  • Low Impact Development (LID)
  • Pervious Pavement and/or Concrete
  • Pipe & Riser Repair & Replacement
  • Rip Rap Replacement
  • Riprap Installation
  • Riser Leak Repair
  • Sand Filter Repair
  • Sand Filters
  • Sediment Removal
  • Stormwater Green Infrastructure
  • Stormwater Inlets/Outlets
  • Stormwater Services
  • Stormwater Vaults
  • Streambank Stabilization/ Restoration
  • Swales
  • Trash and Debris Removal
  • Turf Improvements & Establishment
  • Underground System Clean-out
  • Underground System Cleaning
  • Underground/Underdrain Systems
  • Vacuuming and Flushing
  • Vegetation Management
  • Video Inspections
  • Water Quality Units

BMP Maintenance


Construction and Remediation

Consulting and Data Management

What We Provide:

Hantho is knowledgeable professional and certified to inspect your stormwater assets on-stie and review the original construction plans. We will quickly provide you with a detailed comprehensive baseline report customized to your property’s construction. This report will identify and highlight issues and concerns that can have you compliant and functioning to specifications as quick and low cost as possible.

We offer you on-demand maintenance and remediation services as well as a free Operations and Maintenance Manual for your stormwater assets so you can plan long-term budgeting and familiarize yourself with the risk and lifecycles of your stormwater assets. We are certain you will be satisfied with what we can provide to you.

Our standards will help you better understand your property and facility, the associated regulations, the governing agencies, and the latest expectations to remain compliant.

QR Medallion Technology

HANTHO offers a stormwater BMP asset management service that no other company can offer. We place QR code medallions on your stormwater assets out in the field. This will provide to you in real time, immediate access to AS BUILT plans, and up-to-date revisions. It will highlight warranty timelines and target concerns for corrective actions before costs increase, such as, poor designs, potentially improper installations and follow up corrections. You will have everything you need when you need it just one click away.

  • In Progress Construction Due Diligence
  • Post Construction Reporting
  • Industrial Permit Reporting
  • ESG reporting