The concentration in sewage of any of the following substances shall not exceed these concentrations judged by the Superintendent to be toxic to biological sewage treatment processes or to the biota of the receiving waters and shall not exceed the limits specified below at the point of discharge into the Town trunk sewer system or public sewer tributary thereto. These limits may be revised by the Superintendent in accordance with §§ 173-11 and 173-13 of Article V of this chapter.
|
Regulated Pollutant
|
Permissible Average Daily Concentration
(milligrams per liter)
|
|---|---|
|
Cadmium
|
0.7
|
|
Hexavalent chromium
|
2.0
|
|
Total chromium
|
3.0
|
|
Copper
|
2.8
|
|
Lead
|
0.4
|
|
Mercury
|
0.2
|
|
Nickel
|
2.8
|
|
Zinc
|
1.8
|
|
Arsenic
|
0.2
|
|
Total cyanide
|
0.8
|
|
Selenium
|
0.2
|
|
Barium
|
2.0
|
|
Silver
|
0.8
|
|
Phenols
|
4.0
|
|
Oil and grease
|
100.0
|
State requirements and limitations on discharges
shall apply in any case where they are more stringent than federal
requirements and limitations or those in this chapter.
Except where expressly authorized to do so by
the Superintendent or by an applicable categorical pretreatment standard,
no user shall ever increase the use of process water or in any way
attempt to dilute a discharge as a partial or complete substitute
for adequate treatment to achieve compliance with the limitations
contained in the federal categorical pretreatment standards or in
any other pollutant-specific limitation developed by the Town, county
or state.
Each user shall provide protection from accidental
discharge of prohibited materials or other substances regulated by
this chapter. Facilities to prevent accidental discharge of prohibited
materials shall be provided and maintained at the owner's or user's
own cost and expense. Detailed plans showing facilities and operating
procedures to provide this protection shall be submitted to the Town
for review and shall be approved by the Town before construction of
the facility. All existing users shall complete such a plan as directed
by the Superintendent. No user who commences contribution to the publicly
owned treatment works after the effective date of this chapter shall
be permitted to introduce pollutants into the system until accidental
discharge procedures have been approved by the Town. Review and approval
of such plans and operating procedures shall not relieve the industrial
user from the responsibility to modify the user's facility as necessary
to meet the requirements of this chapter. In the case of an accidental
discharge, it is the responsibility of the user to immediately telephone
the Superintendent and notify the receiving publicly owned treatment
works treatment plant of the incident. The notification shall include
the location of the discharge, type of waste, concentration, volume
and corrective actions.
Within five days following an accidental discharge,
the user shall submit to the Superintendent a detailed written report
describing the cause of the discharge and the measures to be taken
by the user to prevent similar future occurrences. Such notification
shall not relieve the user of any expense, loss, damage or other liability
which may be incurred as a result of damage to the publicly owned
treatment works, fish kills or any other damage to person or property
nor shall such notification relieve the user of any fines, civil penalties
or other liability which may be imposed by this chapter or other applicable
law.
A notice shall be permanently posted on the
user's bulletin board or other prominent place advising employees
whom to call in the event of a dangerous discharge. Employers shall
ensure that all employees who may cause or suffer such a dangerous
discharge to occur are advised of the emergency notification procedure.
