ENVIRONMENTAL FINAL GOVERNING STANDARDS ITALY

ITALY - 4 Wastewater
C4.3.4.3.3. First flush shall be separated, treated and considered as industrial
wastewater in the following cases:
C4.3.4.3.3.1. Courtyards, with an extension > 2,000 m 2 (21,527 ft 2 ),
serving car repair shops, body shops, car washes and wastewater treatment plants;
C4.3.4.3.3.2. Parking areas, with an extension > 5,000 m 2 (53,820 ft 2 ), of
installations listed in Table 4.9;
C4.3.4.3.3.3. Other non-roofed paved area of installations listed in Table
4.9 for which the Competent Authority has required treatment only for first flush;
C4.3.4.3.3.4. Courtyards and parking of residential/commercial areas,
intermodal areas, with an extension > 5,000 m 2 (53,820 ft 2 );
C4.3.4.3.3.5. Surfaces in fuel stations.
C4.3.4.3.3.6. Precipitation events are considered separate when they
occur within a timeframe > 48 hours from each other.
C4.3.4.3.4. Storm water runoff conveyed to a dedicated sewer system can be
discharged to surface water or soil when it is derived from:
C4.3.4.3.4.1. Public and private roads;
C4.3.4.3.4.2. Courtyards, with an extension < 2,000 m 2 (21,527 ft 2 ),
serving car repair shops, body shops, car washes and wastewater treatment plants;
C4.3.4.3.4.3. Parking areas, with an extension < 5,000 m 2 (53,820 ft 2 ), of
installations listed in Table 4.9;
C4.3.4.3.4.4. Courtyards and parking of residential/commercial areas,
public transit vehicles depots, intermodal areas, with an extension < 5,000 m 2 (53,820 ft 2 );
C4.3.4.3.3 above.
2012.
C4.3.4.3.4.5. All other surfaces not regulated under C4.3.4.3.1 and
C4.3.4.3.5. Existing installations shall be compliant with the above by 8 December
C4.3.4.4. Employee Training. Personnel who handle hazardous substances or perform
activities that could contribute pollution in wet weather events, should be trained in appropriate
BMPs. Such training should stress P2 principles and awareness of possible pollution sources,
including non-traditional sources such as sediment, nitrates, pesticides, and fertilizers.
C4.3.5. Septic Systems. All discharges to septic systems shall be permitted. The permit
shall be obtained through the Italian Base Commander. Discharge to a septic system of
wastewater containing industrial pollutants in levels that will inhibit biological activity is
September 2012 Italy FGS 4-18
Revision 0