
PROFESSIONAL SERVICES

WATER PERMITTING
NPDES & PRETREATMENT
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New and Renewal Permit Applications
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Draft Permit Review and Comments
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Permit Negotiations
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Regulatory Agency Assistance
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Technology-Based and Water Quality-Based Effluent Limits
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Wasteload Allocations and TMDLs
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Mixing Zone Studies
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Section 316(a) Demonstrations
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Section 301(g) variances

ENVIRONMENTAL
LITIGATION
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Clean Water Act
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CERCLA - PRP services
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Expert engineering and technical consulting
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Expert witness services

RESEARCH AND
HISTORICAL MODELING
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Historical toxic pollutant allocation
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PCBs
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PAHs
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Lead
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Chromium
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Toxic Pollutant ambient air monitoring program evaluation
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U.S. / Canada
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Europe
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Japan
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WATER QUALITY
ENGINEERING
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Diagnostic evaluations of industrial process water and wastewater treatment systems
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Wastewater characterization
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Treatability and pilot plant studies
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Conceptual engineering for industrial process water treatment systems
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Outfall and diffuser design
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Mobile treatment system design and development
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Permit-to-install applications
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Strategic planning for water and wastewater management
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Storm water management and control

PCB AND DIOXIN CONSULTING
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U.S. EPA Dioxin Release Inventory data validation
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Dioxin & PCB release estimates (air, water, land)

CONTINGENCY
PLANNING
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Spill Prevention, Control, and Countermeasure (SPCC) Plans
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Storm Water Pollution Prevention Plans (SWPPPs)
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Pollutant Minimization Plans
(PMPs) -
Resource Conservation and Recovery Act (RCRA) Contingency Plans

AUDITING, COMPLIANCE INSPECTIONS, SITE ASSESSMENTS
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NPDES permit Compliance Evaluation Inspections (CEIs)
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Third party single media and multimedia environmental audits
(EPCRA, CAA, NESHAPs, RCRA, CWA, TSCA)
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Industrial storm water permit compliance inspections
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Municipal Separate Storm Sewer System (MS4) NPDES permit compliance inspections
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Phase 1 Environmental Site Assessments (ASTM E1527/E1528)

WATER QUALITY STUDIES
AND DYE TESTING
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Field Studies:
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Process water characterization
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Mixing Zones (Thermal, Other)
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Dissolved Metals Translators
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Water Effect Ratios
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Dye Tracer Studies and Flow Measurements
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Industrial Process Wastewater
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Non-Process Wastewater
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Storm Water
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Time-of-Travel Studies
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TRAINING
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Clean Water Act
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NPDES and Pretreatment Permitting
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Water Quality Modeling