N.J. Admin. Code § 7:14A-13.9 - Seasonal effluent limitations

(a) Seasonal water quality based effluent limitations for continuous discharges may be developed in accordance with the following:

1. The permittee shall submit the necessary water quality studies that address any effects or potential effects on nutrient cycling and potential or actual adverse biological impacts in other waterbody segments related to nutrients.

2. The seasonal limitations shall be developed from a seasonal TMDL or a seasonal site specific allocation for the specific pollutant(s) or pollutant parameter(s) which addresses critical conditions applicable to each season for which an effluent limitation is requested.

3. Seasonal water quality based effluent limitations shall be developed only for the following parameters and groups of parameters and only insofar as the warm weather limitations cannot be achieved due to decreases in biological treatment efficiency during cold weather:

i. Parameters affecting dissolved oxygen dynamics in the receiving stream;

ii. Nutrients, including phosphorus and nitrogen; and

iii. Ammonia-N, to protect against toxic effects in the receiving water.

4. Except as specified at (a)5 below, seasonal water quality based effluent limitations shall be developed for two seasons in each year.

5. Seasonal WLAs or site specific allocations may be developed for shorter periods of time including more than two seasons, when the United States Geological Survey provides a reliable estimate of applicable stream design flows from a gauging station located in the vicinity of the discharge location.

Notes

N.J. Admin. Code § 7:14A-13.9