Effluent Concentration Limit4
(mg/l)
| ||
---|---|---|
Substance1
|
Allowable Average Daily2
|
Allowable Maximum Instantaneous3
|
Aluminum
| ||
Antimony
| ||
Arsenic
| ||
Barium
| ||
Beryllium
| ||
Bismuth
| ||
Bromine
| ||
Cadmium
|
0.69
|
2.0
|
Chlorides
| ||
Chlorine
| ||
Chromium (hex)
|
2.77
|
8.3
|
Chromium (total)
|
2.77
|
8.3
|
Cobalt
| ||
Copper
|
3.38
|
10
|
Cyanide (complex)
|
1.20
|
3.6
|
Cyanide (free)
|
1.20
|
3.6
|
Fluorides
| ||
Gold
| ||
Iodine
| ||
Iron
| ||
Lead
|
0.69
|
2.0
|
Manganese
| ||
Mercury
| ||
Molybdenum
| ||
Nickel
|
3.98
|
12.0
|
Phenols, total
|
NOTES:
|
1 Except for chromium (hex), all
concentrations listed for metallic substances shall be as "total metal,"
which shall be defined as the value measured in a sample acidified
to a pH value of 2.0 or less, without prior filtration.
|
2 As determined on a composite sample
taken from the user's daily discharge over a typical operational and/or
production day.
|
3 As determined on a grab sample
taken from the user's discharge at any time during the daily operational
and/or production period.
|
4 Other substances which may be limited
are antibiotic chemical compounds which, upon acidification, alkalinization,
oxidation or reduction, in the discharge or after admixture with wastewater
and its components in the POTW, produce toxic, flammable or explosive
compounds; pesticides, including algaecides, fungicides, herbicides,
insecticides or rodenticides; poly-aromatic hydrocarbons; or viable
pathogenic organisms from industrial processes or hospital procedures.
|