[Added 2-14-2007 by Ord. No. 304]
The purpose of this article is to provide for
the regulation of installation, maintenance and use of sewage grinder
pumps and any associated force mains or low-pressure laterals for
the protection, benefit and preservation of the health, safety and
welfare of the residents of Skippack Township.
A.
The following pollutant limits are established to
protect against pass through, interference and sludge contamination.
No person shall discharge wastewater treatment in excess of the following
limits:
|
Pollutant
|
Parameter Daily Maximum
(mg/L)
|
|
Arsenic
|
0.425
|
|
Cadmium
|
0.05
|
|
Chromium
|
3.5
|
|
Copper
|
1.0
|
|
Cyanide
|
1.0
|
|
Lead
|
1.0
|
|
Mercury
|
0.002
|
|
Nickel
|
1.1
|
|
Oil and grease and fats of animal or vegetable
origin
|
100
|
|
Oil and grease of petroleum origin, nonbiodegradable
|
100
|
|
Cutting oil, mineral oil
|
25
|
|
Silver
|
0.35
|
|
Zinc
|
3.0
|
B.
The above limits apply at the point where the wastewater
is discharged to the sewer. All concentrations from metallic substances
are for "total" metal unless otherwise indicated. The above local
limits are based on maximum allowable headworks loadings (MAHL) as
approved by EPA. The Control Authority, Lower Perkiomen Valley Regional
Sewer Authority, through the issuance of an industrial waste discharge
permit, may establish other effluent limits consistent with the approved
MAHL. No such permits, however, shall waive or abrogate federal or
state categorical pretreatment standards or regulations. Categorical
concentrations apply at the end of the process waste stream. No person
shall discharge wastewater containing in excess of allowable discharge
limits as established by the Control Authority, Lower Perkiomen Valley
Regional Sewer Authority. The Control Authority, Lower Perkiomen Valley
Regional Sewer Authority, may impose mass limitations in addition
to, or in place of, the concentration-based limitations.
