A.
No person shall discharge, or cause to be discharged, any stormwater,
surface water, groundwater, roof runoff, subsurface drainage, uncontaminated
cooling water, or any other unpolluted effluent, so declared by the
Town and Approval Authority, to the POTW. No user shall contribute
or cause to be contributed, directly or indirectly, any pollutant
or wastewater which will interfere with the operation or performance
of or pass through the POTW. These general prohibitions apply to all
such users of a POTW whether or not the user is subject to National
Categorical Pretreatment Standards or any other national, state, or
local pretreatment standards or requirements. A user may not contribute
the following substances to an POTW:
(1)
Any liquids, solids or gases which by reason of their nature or quantity
are, or may be, sufficient either alone or by interaction with other
substances to cause fire or explosion or be injurious in any other
way to the POTW or to the operation of the POTW. At no time shall
the average of two successive readings of an explosion hazard meter,
at the point of discharge into the system (or at any point in the
system) be more than 5%, nor any single reading over 10% of the lower
explosive limit (LEL) of the meter. Prohibited materials include but
are not limited to any discharge with a closed-cup flashpoint of less
than 140° F. or 60° C. using the test method specified in
40 CFR 261.21, gasoline, kerosene, naphtha, benzene, toluene, xylene,
ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates,
bromates, carbides, hydrides and sulfides, and any other substances
which the Town, the DEM, or the EPA has notified the user is a fire
hazard or a hazard to the system.
(2)
Solid or viscous substances which may cause obstruction to the flow
in a sewer or other interference with the operations of the wastewater
treatment facilities such as, but not limited to: grease in excess
of 100 milligrams per liter, garbage with particles greater than 1/2
inch in any dimension, animal guts or tissues, paunch manure, bones,
hair, hides or fleshings, entrails, whole blood, feathers, ashes,
cinders, sand, spent lime, stone or marble dust, metal glass, straw,
shavings, grass clippings, rags, spent grains, spent hops, wastepaper,
wood, plastics, gas, tar, asphalt residues, residues from refining,
or processing of fuel or lubricating oil, mud, or glass grinding or
polishing wastes.
(3)
Any wastewater having a pH less than 5.0 or greater than 11.0, or
wastewater having any other corrosive property capable of causing
damage or hazard structures, equipment and/or personnel of the POTW.
(4)
Any wastewater containing toxic pollutants in sufficient quantity,
either singly or by interaction with other pollutants, to injure or
interfere with any wastewater treatment process, constitute a hazard
to human or animals, create a toxic effect in the receiving waters
of the POTW, or to exceed the limitations set forth in a categorical
pretreatment standard. A toxic pollutant shall include, but not be
limited to, any pollutant identified pursuant to Section 307(a) of
the Act.
(5)
Any noxious or malodorous liquids, gases, or solids which, either
singly or by interaction with other wastes, are sufficient to create
a public nuisance or hazard to life or are sufficient to prevent safe
entry to the sewers for maintenance and repairs.
(6)
Any substance which may cause the POTW's effluent or any other product
of the POTW such as residues, sludges, or scums, to be unsuitable
for reclamation and reuse, or to interfere with the reclamation process.
In no case shall a substance discharged to the POTW cause the POTW
to be in noncompliance with sludge use or disposal criteria, guidelines
or regulations developed under Section 405 of the Act, any use or
disposal developed pursuant to the Solid Waste Disposal Act, or DEM
criteria applicable to the sludge management method being used.
(7)
Any substance which will cause the POTW to violate its NPDES and/or
RIPDES permit or the receiving water quality standards.
(8)
Any wastewater with objectionable color not removed in the treatment
process, such as, but not limited to, dye wastes and vegetable tanning
solutions.
(9)
Any wastewater having a temperature which will inhibit biological
activity in the POTW treatment plant resulting in Interference but
in no case wastewater with a temperature at the introduction into
the POTW which exceeds 40° C. (104° F.).
(10)
Any pollutants, including oxygen-demanding pollutants (BOD,
etc.) released at a flow rate and/or pollutant concentration which
a user knows or has reason to know will cause interference to the
POTW. In no case shall a slug load have a flow rate or contain concentration
or quantities of pollutants that exceed for any time period longer
than 15 minutes more than five times the average twenty-four-hour
concentration, quantities, or flow during normal operation.
(11)
Any wastewater containing any radioactive wastes or isotopes
of such half-life or concentration as may exceed limits established
by the Superintendent in compliance with applicable state or federal
regulations.
(12)
Any wastewater which causes a hazard to human life or creates
a public nuisance.
B.
When the Superintendent determines that a user is contributing to
the POTW, any of the above enumerated substances in such amounts as
to interfere with the operation of the POTW, the Superintendent shall:
Upon the promulgation of the Federal Categorical Pretreatment
Standards for a particular industrial subcategory, the federal standard,
if more stringent than limitations imposed under this Part 2 for sources
in that subcategory, shall immediately supersede the limitations imposed
under this Part 2. The Superintendent shall notify all affected users
of the applicable reporting requirements under 40 CFR 403.12.
Where the Town's wastewater treatment system achieves consistent
removal of pollutants limited by Federal Pretreatment Standards, the
Town may apply to the Approval Authority for modification of specific
limits in the Federal Pretreatment Standards. "Consistent Removal"
shall mean reduction in the amount if pollutant or alteration of the
nature of the pollutant by the wastewater treatment system to a less
toxic or harmless state in the effluent which is achieved by the system
as reported by analyses of 95% of the samples taken when measured
according to the procedures set forth in Section 403.7(c)(2) of Title
40 of the Code of Federal Regulations, Part 403, General Pretreatment
Regulations for Existing and New Sources of Pollution, promulgated
pursuant to the Act. The Town may then modify pollutant discharge
limits in the federal pretreatment standards if the requirements contained
in 40 CFR, Part 403, Section 403.7, are fulfilled and prior approval
from the Approval Authority is obtained.
No person shall discharge wastewater containing in excess of:
|
0.2
|
mg/l
|
Arsenic
|
|
0.11
|
mg/l
|
Cadmium
|
|
2.8
|
mg/l
|
Copper
|
|
0.8
|
mg/l
|
Cyanide
|
|
0.3
|
mg/l
|
Lead
|
|
0.05
|
mg/l
|
Mercury
|
|
2.8
|
mg/l
|
Nickel
|
|
0.43
|
mg/l
|
Silver
|
|
2.57
|
mg/l
|
Total chromium
|
|
1.8
|
mg/l
|
Zinc
|
|
0.5
|
mg/l
|
Total identifiable chlorinated hydrocarbons
|
|
0.05
|
mg/l
|
Phenolic compounds which cannot be removed by the Town's wastewater
treatment processes
|
Requirements and limitations on discharges established under
the Rhode Island Pollution Discharge Elimination System shall apply
in any case where they are more stringent than federal requirements
and limitations or those in this Part 2.
The Town reserves the right to establish by ordinance more stringent limitations or requirements on discharges to the wastewater disposal system if deemed necessary to comply with the objectives presented in § 206-55 of this article.
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 pollution-specific limitations developed by the Town or
state.
Each user shall provide protection from accidental discharge
of prohibited materials or other substances regulated by this Part
2. Facilities to prevent accidental discharge of prohibited materials
shall be provided and maintained at the owner or user's own cost and
expense. Detailed plans showing facilities and operating procedures
to provide this protection shall be submitted to the Director for
review, and shall be approved by the Director before construction
of the facility. All existing users shall complete such a plan within
90 days of the adoption of this Part 2. No user who commences contribution
to the POTW after the effective date of this Part 2 shall be permitted
to introduce pollutants into the system until accidental discharge
procedures have been approved by the Director. 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 Part 2. In the case of an accidental
discharge, it is the responsibility of the user to immediately telephone
and notify the POTW of the incident. The notification shall include
location of discharge, type of waste, concentration and 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 POTW, 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 article or other applicable laws.
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 insure that all
employees who may cause or suffer such a dangerous discharge to occur
are advised of the emergency notification procedure.
As defined in 40 CFR 403.16.
