Effluent Concentration Limit (mg/l)
| ||
---|---|---|
Substance
|
Allowable Average Daily
|
Allowable Maximum Instantaneous
|
(1)
|
(2)
|
(3)
|
Arsenic
|
0.102
|
0.153
|
Cadmium
|
0.023
|
0.035
|
Chromium
|
1.167
|
1.751
|
Copper
|
0.812
|
1.218
|
Cyanide (complex)
|
0.320
|
0.480
|
Lead
|
0.430
|
0.645
|
Mercury
|
0.012
|
0.018
|
Nickel
|
0.342
|
0.513
|
Silver
|
0.240
|
0.360
|
Zinc
|
1.480
|
2.000
|
Phenols (total)
|
—
|
45.000
|
NOTES:
| |
(1)
|
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: additional metals,
including aluminum, antimony, barium, beryllium, bismuth, cobalt,
gold, iron, manganese, molybdenum, selenium, tin, thallium, and vanadium;
additional halogens, including bromine and iodine; alkanes, alkenes
and alkynes; aliphatic and aromatic alcohols and acids; aliphatic
and aromatic aldehydes and ketones; aliphatic and aromatic esters;
aliphatic and aromatic halogenated compounds; aliphatic and aromatic
nitro, cyano and amino compounds; antibiotics; benzene derivatives;
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 algicides, fungicides; herbicides,
insecticides, rodenticides; phthalates; polyaromatic and polynuclear
hydrocarbons; total toxic organics, TTO, as defined in 40 CFR 433.11;
toxic organic compounds regulated by federal pretreatment standards;
unsaturated aliphatics, including those with an aldehyde, ketone or
nitrile functional group; viable pathogenic organisms from industrial
processes or hospital procedures.
|
Allowable POTW Influent Loading
| |
---|---|
Substance
|
Average Daily
(pounds per day)
|
Arsenic
|
0.127
|
Cadmium
|
0.029
|
Chromium
|
1.460
|
Copper
|
1.016
|
Cyanide (complex)
|
0.400
|
Lead
|
0.538
|
Mercury
|
0.015
|
Nickel
|
0.428
|
Silver
|
0.300
|
Zinc
|
1.668
|
Phenols (total)
|
37.530
|