 TDL  
   
Environmental Services
TDL  
   
Environmental Services
         
TDL’s 
engineers have distinctive expertise in the Environmental Engineering field 
including design experience as well as up-to-date knowledge of various 
environmental regulations such as NPDES storm-water and wastewater discharge 
regulations. 
			
			            
			
			Federal and Commercial managers need current information regarding 
various environmental requirements. Our environmental services focus on 
providing responsible managers with accurate and timely information about 
environmental regulations and changes to assist them in making effective 
business decisions. We can keep you abreast of environmental regulatory and 
compliance changes and explain how the changes will affect your business. 
Controlling the quality of soil, air, and water by complying with governing 
federal, state, and local regulatory requirements and guidelines is a necessary 
part of our Environmental, Safety and Occupational Health programs. 
			
			
			           
			
			We have 
designed automatic samplers with remote monitoring capability to enable our 
customers to comply with water discharge related regulations. Our engineers also 
hold patent on the design of Distributed Wastewater Treatment System. We can 
assist you in the design, build and operation of water, wastewater collection 
and treatment systems. Following are some of the environmental services we 
provide:
 Wastewater treatment
    
Wastewater treatment
 Wastewater collection (gravity and low pressure sewer)
    
Wastewater collection (gravity and low pressure sewer)
 NPDES 
Stormwater sampling
    
NPDES 
Stormwater sampling
 Soil 
analysis
    
Soil 
analysis
 Wastewater sampling
    
Wastewater sampling
 Erosion control
    
Erosion control
 Water 
resource engineering
    
Water 
resource engineering
			
 3-D 
acoustic telemetry
    
3-D 
acoustic telemetry
 Velocity data collection and analysis
    
Velocity data collection and analysis
 Structural design
    
Structural design
 Perform various studies ( wetland, endangered species ground water, erosion 
control, air quality etc.)
    
Perform various studies ( wetland, endangered species ground water, erosion 
control, air quality etc.)
 Modeling (earthquake and earth movement etc.)
    
Modeling (earthquake and earth movement etc.)
 National Environmental Policy Act (NEPA)
    
National Environmental Policy Act (NEPA)
			
 Regulatory support
    
Regulatory support
 Air 
quality
    
Air 
quality
 Solid/hazardous waste
    
Solid/hazardous waste
 Meteorological services
    
Meteorological services