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Geoflow Subsurface Drip Geoflow, Inc.

Description of Technology

Descriptions for proprietary technologies are from the Massachusetts DEP Approval Letters for the technology.

The System is a pressure distributed subsurface wastewater drip dispersal (disposal) system that replaces a conventional soil absorption system (SAS). The System is designed to distribute secondary effluent and pressure discharge it at a depth of at least 6 inches below finished grade. The System includes a pump chamber, control panel, a filter module/hydraulic unit and drip dispersal zone(s) with drip tubing incorporating discharge emitters. The dispersal zone(s) include small diameter flexible polyethylene tubing with turbulent flow emitters regularly spaced inside the line. The System can be designed with either classic turbulent flow emitters or with pressure compensating emitters spaced one or two feet apart. The tubing is extruded with an inner lining of an anti-microbial agent to prevent bacterial growth. Dispersal field dosing is timed and controlled electronically to provide pre-programmed volumes of effluent for discharge to each dispersal zone(s). Each zone shall have air release valves at the high points of manifolds and check valves on each return manifold in multi-zone systems. The System shall be equipped with a totalizing flow meter.

Massachusetts Technology Approvals

Approval Type General Remedial Provisional Pilot
Secondary Treatment
Nitrogen Removal Credit
Phosphorus Removal Credit

Please check the Title 5 Innovative/Alternative Technology Approval Letters webpage at Massachusetts DEP for the most up-to-date information.


Geoflow, Inc.
506 Tamal Plaza
Corte Madera, California 94925 United States
P: 800–828–3388

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