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Bureau of Ground Water, Residuals, and Permit Administration
NJDEP Division of Water Quality
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Ground Water General Permits

Basin Discharges at Sanitary Landfills (I1)

Basin Discharges at Sanitary Landfills (I1)

This permit authorizes stormwater basin discharges at operating sanitary landfills. It is for site runoff into sedimentation basins, retention basins, detention basins, and surface impoundments (collectively referred to as basins). This runoff (rainwater) flows into basins without contacting landfill refuse. The permit includes monitoring among other permit requirements.

Dental Amalgam General Permit (K2)
Dental Staff

This general permit authorizes those who discharge wastewater to the ground water from new or existing dental facilities using individual subsurface sewage disposal systems, i.e. “septic systems”.

Lined Surface Impoundments (LSI)

Lined Surface Impoundments (LSI)

The Lined Surface Impoundment General Permit authorization was developed to encourage the elimination of ground water discharges from unlined surface impoundments, basins or infiltration/percolation lagoons, and to simplify the regulatory requirements for permittees.

Potable Water Treatment Plants (I2)

Potable Water Treatment Plants (I2)

This general permit covers potable water treatment plants (WTP) discharging filter backwash and clarifier water to outdoor basins. The discharge results from the process of bringing raw water supplies to drinking quality standards, which often requires the removal of low concentrations of iron, manganese, organic matter, and trace amounts of other metals. When filters are backwashed or when clarifiers are cleaned, the wastewater generated is usually discharged to an outdoor infiltration-percolation basin which ultimately discharges to groundwater.

Sanitary Subsurface Disposal (T1)
Sanitary Subsurface Disposal (T1)

This general permit authorizes the discharge of sanitary sewage from facilities to a subsurface disposal (septic) system with a design volume in excess of 2,000 GPD.

Sanitary Wastewater Discharges from Commercial Farm Activities (GWCF)
Sanitary Subsurface Disposal (T1)

This general permit authorizes the discharge of sanitary sewage to ground water from commercial activities that take place on Farms that utilize individual subsurface sewage disposal systems where the contribution to the overall design flow on property from the commercial activities is less than 2,000 gallons per day (calculated pursuant to N.J.A.C. 7:9A-7.4).

Sanitary Wastewater Discharges from Farm Labor Housing (GFLH)
Sanitary Subsurface Disposal (T1)

This General Permit authorizes the discharge of sanitary sewage to Ground Water on farms that utilize individual subsurface sewage disposal systems where the aggregate design volume of sanitary sewage generated on the property from farm labor housing is greater than 2,000 gallons per day, as calculated in accordance with N.J.A.C. 7:9A-7.4.



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Last Updated: June 1, 2023