1. Rainwater collected from piping on the exterior and used solely for subsurface irrigation, drip irrigation, watering plants using a hose and washing of sidewalks, streets, buildings or vehicles;
2. Rainwater collected utilizing a retention system through rain barrels complying with the requirements of the Department of Environmental Protection;
3. Commercial car washing facilities; and
4. Water closet-sink combinations. A fixture that enables wastewater from a lavatory to discharge directly into the flushing tank of a water closet may be utilized provided it complies with the New York City Construction Codes, including all accessibility requirements. The water closet and lavatory shall be located in the same room.
BLACK WATER. Discharge from water closets, urinals, bathtubs, showers, clothes washers, laundry trays, washdown water and blowdown water from cooling towers, and any other fixtures discharging animal or vegetable matter in suspension or solution.
GRAY WATER. Discharge from lavatories and condensate water.
RAINWATER. Precipitation collected directly from the sky or from roof and balcony runoff.
WASTEWATER. Gray and black water.
Exception: Systems collecting only rainwater and/or condensate used solely for cooling tower makeup and/or subsurface and drip irrigation shall comply with Section PC C103.
TABLE C102.1 MINIMUM WATER QUALITY STANDARDS
|BOD||< 10 mg/la|
|TSS||< 10 mg/l|
|Total Coliform||< 100 per 100 ml|
|E. Coli||< 2.2 colonies per 100 ml|
|Turbidity||< 2.0 NTUb|
|a. Effluent from rainwater and condensate collected in separate tanks or compartments from wastewater shall not be required to meet the BOD limitations indicated above.|
|b. The wastewater facility effluent must meet the performance standards of < 2.0 NTU for turbidity for 95% of the measurements. At no time can the turbidity result be above 5 NTU. These results shall be recorded and compiled in the annual report.|