ENVIRONMENTAL FINAL GOVERNING STANDARDS ITALY

ITALY - 4 Wastewater
Table 4.1.1. Wastewater Discharge Limits for Urban Wastewaters in the Veneto Region
Parameter # Parameter (1)
Unit of
Measure
Discharge into Surface Water
A B C D E
1 pH 6.0 – 9.0 (2) 6.0 – 9.0 (2) 6.0 – 9.0 (2) 6.0 – 9.0 (2) 6.0 – 9.0 (2)
2 Temperature °C Generally
3°C above
receiving
water temp (3)
3 Color not
perceptible
after dilution
of 1:40
4 Odor Cannot be a
source of
nuisance or
discomfort
Generally
3°C above
receiving
water temp (3)
not
perceptible
after dilution
of 1:40
Cannot be a
source of
nuisance or
discomfort
Generally
3°C above
receiving
water temp (3)
not
perceptible
after dilution
of 1:20
Cannot be a
source of
nuisance or
discomfort
Generally
3°C above
receiving
water temp
(3)
not
perceptible
after
dilution of
1:20
Cannot be a
source of
nuisance or
discomfort
Generally
3°C above
receiving
water temp
(4)
not
perceptible
after
dilution of
1:20
cannot be a
source of
nuisance or
discomfort
5 Coarse material Absent Absent Absent Absent Absent
6 Total suspended
solids (TSS) (5)
7 BOD 5 (as O 2) (6) mg/L 30 (22)
mg/L 200 (9) 150 (9) (10) 35 (9) 35 (9) 35 (17)
45 (23)
September 2012 Italy FGS 4-25
Revision 0
30 (22)
45 (23)
25 (9) 25 (9) 25 (17)
8 COD (as O 2) (7) mg/L 380 (8) 250 (10) 125 125 125 (17)
9 Al mg/L 2 2 1 1 -
10 As mg/L 0.5 0.5 0.5 0.5 0.5
11 Ba mg/L 20 20 20 2 40
12 Bo mg/L 4 (11) 4 2 (11) 2 20
13 Cd mg/L 0.02 0.02 0.02 0.01 0.02
14 Total Cr mg/L 2 2 2 2 2
15 Cr VI mg/L 0.2 0.2 0.2 0.1 0.2
16 Fe mg/L 4 4 2 2
17 Mn mg/L 4 4 2 2
18 Hg mg/L 0.005 0.005 0.005 0.002 0.005
19 Ni mg/L 2 2 2 0.1 2
20 Pb mg/L 0.2 0.2 0.2 0.1 0.2
21 Cu mg/L 0.1 0.1 0.1 0.05 0.1
22 Se mg/L 0.03 0.03 0.03 0.02 0.03
23 Sn mg/L 10 10 10 10 -
24 Zn mg/L 0.5 0.5 0.5 0.5 0.5