AIR, WATER & WASTE PERMITTING
One of Caltha’s core service areas is environmental permitting. Caltha provides expert and cost effective services to obtain air emission permits, wastewater permits and hazardous waste and other permits on behalf of our clients
Air Permit, Registration Permits & Permit By Rule
Wastewater Discharge, NPDES Permits, Pretreatment Permits and Sewer Discharge Permits
Under the Clean Water Act, all discharges of waste to the waters of the US require an NPDES permit. Caltha has permitted all sizes of municipal discharges, industrial discharges, cooling water discharges.
To meet Federal Categorical Effluent Guidelines, State rules, and local pretreatment regulations, many types of wastewater discharges to publicly owned treatment works (POTW) require a pretreatment permit. Caltha staff have permitted a wide range of indirect discharges.Recently, the potential for soil vapor intrusion has become an important issue. Caltha conducts a Tier I Vapor Encroachment Screening Assessment (ASTM Standard E2600-10) with every Phase 1 ESA. If the potential for vapor encroachment can not be ruled out during the Phase 1, Caltha can conduct soil vapor testing during the Phase 2 investigation.
Stormwater Discharge Permitting
RCRA Permit & Treatment, Storage & Disposal (TSDF) Permit
Aboveground & Underground Storage Tank Permit
EXAMPLE PROJECT SUMMARIES
Caltha posts write-ups on selected projects on our web site. You can view an archive of past project summaries for this service area by clicking on one of the general project categories listed below: