Soil and Groundwater cleanup
Remediation systems Design and Installation
Operation and Maintenance
Asbestos Credentials
Asbestos Survey and Materials Sampling
Stormwater Management
Subsurface Technologies, Inc., STI, provides comprehensive stormwater management services that include design, permitting, construction, rehabilitation and maintenance. STI maintains these facilities in accordance with Federal, State, and local jurisdictions that provide the best and most cost-effective support for our clients.
Emergency Response and Cleanup
Site Investigation, Monitoring, and Closure
Comprehensive Sampling and Analysis
Computer Aided Design
Phase I and II Assessments
24 Hour Emergency Response Team
Permitting and construction
Permitting through agency review and approval.
Cost-effective design to achieve least-cost level of stormwater management
Implementation of required stormwater management controls while minimizing the commitment of developable land area.
Control and mitigation of stormwater impact to downstream areas.
Aesthetic design incorporation.
Repair and Rehabilitation
Subsurface Technologies, Inc., provides comprehensive repair and rehabilitation: Structures – Catch Basins, Storm Drains, and other subsurface units
Removal of silt, dredging, trash and other debris.
Repair/replacement of damaged units, correction of settling and deterioration of structures (concrete, brickwork, rip-rap, gabions, etc.).
Waterproofing and relining of piping.
Inlets and Outlets
Correction and elimination of ponding and impeded flow-related to obstructions or poor design.
Modifications and improvements to address changed conditions or problems with original design.
Ponds and Swales
Repair of erosion
Removal and elimination of significant overgrowth.
Excavation, handling and disposal of siltation to restore pond/swale function.
Maintenance
Routine maintenance services are critical components of stormwater management. Regular maintenance results in decreased long-term operating costs, operation in accordance with original design and regulatory compliance. Additionally, nuisance issues such as insect and animal infestation may be eliminated. Typical maintenance activities include:
Brush and tree removal
Grading and slope stability
Vegetation of denuded areas
Vault, inlet, and pipe cleaning
Erosion control
Catch basin cleaning
Vault cleaning
Oil/grit/sand separator cleaning
Mowing and debris removal (Initial and regular maintenance)
