Environmental Drainage Protection
Hydrocarbon Filtration System with GEOJET Drainage Protection
Maintainable hydrocarbon filtration drainage filters for infrastructure, industrial, transportation, and waterfront applications where water movement and environmental protection must work together.
Hydrocarbon filtration is a critical concern for infrastructure, industrial, transportation, and waterfront drainage applications. Petroleum-based pollutants from runoff, spills, groundwater movement, and operational surfaces can migrate toward waterways if drainage systems are not designed to manage both water flow and contaminant reduction.
GEOJET from JET Filter System is designed to help address that challenge. The system combines maintainable weep hole drainage with hydrocarbon filtration media to support controlled drainage, soil retention, and environmental protection in applications where petroleum-impacted water may be present.
Core value: GEOJET helps reduce petroleum-based contaminants while maintaining drainage access, hydrostatic pressure relief, and soil retention behind infrastructure walls.
The Problem
Why Hydrocarbon Filtration Matters in Drainage Water
Hydrocarbons are organic compounds commonly associated with petroleum products such as gasoline, diesel, motor oil, hydraulic fluid, and other fuels or lubricants. In infrastructure settings, these contaminants can enter drainage pathways through roadway runoff, industrial operations, equipment areas, fuel storage zones, parking surfaces, marine facilities, and contaminated groundwater.
Common Sources
- Roadway runoff during rainfall events
- Groundwater seepage through petroleum-impacted soils
- Fuel, oil, or lubricant spills near retaining structures
- Industrial and maintenance facility drainage
- Stormwater discharge from paved or operational surfaces
Environmental Risks
- Reduced water quality
- Impacts to aquatic ecosystems
- Petroleum migration through drainage pathways
- Soil and backfill contamination concerns
- Greater environmental compliance pressure
Drainage systems in these environments need to do more than move water. They need to help manage pollutant risk while maintaining reliable hydraulic performance.
The Solution
GEOJET Hydrocarbon Filtration Drainage
GEOJET is a maintainable drainage filter system designed for applications where hydrocarbon filtration and water pressure relief are both important. The system uses hydrocarbon filtration media within the JET Filter drainage assembly to help reduce petroleum-based contaminants while allowing water to discharge through the wall.
Pressure Relief
Allows water to discharge through the wall to help relieve hydrostatic pressure behind retaining structures.
Hydrocarbon Reduction
Uses hydrocarbon filtration media to help reduce petroleum-based contaminants in drainage discharge.
Soil Retention
Supports soil retention behind the wall while helping reduce erosion and uncontrolled backfill migration.
At the center of the system is JET Filter’s conical maintainable weep hole filter design. The drainage component allows water to move through the structure while helping retain surrounding soils and preserve future service access.
System Function
How GEOJET Works
GEOJET combines filtration, drainage, and maintainability in a single wall drainage system.
- Water enters the drainage assembly from behind the wall.
- The discharge passes through hydrocarbon filtration media.
- The system helps reduce petroleum-based contaminants in drainage water.
- The filter assembly supports soil retention behind the structure.
- The maintainable configuration preserves access for inspection and servicing.
The result is a drainage solution that helps manage water pressure while supporting environmental protection where hydrocarbon exposure may be a concern.
System Benefits
Key Benefits of GEOJET
GEOJET supports environmental drainage applications by combining hydrocarbon reduction, maintainable service access, hydrostatic pressure relief, and soil retention in one drainage filter system.
Hydrocarbon Reduction
Helps reduce petroleum-based contaminants from drainage discharge in applications exposed to fuels, oils, lubricants, industrial runoff, or contaminated groundwater.
Maintainable Access
Designed for future inspection and servicing so owners and contractors can maintain drainage performance over time instead of relying on hidden drainage paths.
Pressure Relief
Helps relieve hydrostatic pressure behind retaining structures, seawalls, bulkheads, culverts, and other drainage-sensitive infrastructure.
Soil Retention
Supports soil retention while helping reduce the risk of backfill loss, erosion, and sediment migration through drainage openings.
Product Line
GEOJET Model Overview
The GEOJET product line includes open-end free-flow models and closed-end models with check valves for backflow prevention.
For related drainage products, explore the GEOJET Filter product line or compare available drainage options in the JET Filter product comparison guide.
Open-End Free-Flow Models

GEO3SS
A 3-inch stainless steel GEOJET model designed for maintainable drainage and hydrocarbon reduction in smaller wall drainage applications.















