A.
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 the POTW. These general prohibitions
apply to all such users of a POTW, whether 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 any POTW:
(1)
Any liquid, 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, including waste streams
with a closed-cup flashpoint of less than 140° F. or 60° C.
using the test measures specified in 40 CFR 261.21 or its successor
section. At no time shall two successive readings on an explosion
hazard meter at the point of discharge into the system (or any point
in the system) be more than 5% nor any single reading over 10% of
the lower explosion limit (LEL) of the meter. Prohibited materials
include gasoline, kerosene, petroleum oil, nonbiodegradable cutting
oil, or products of mineral oil origin in amounts that will cause
interference or pass-through, naphtha, benzene, toluene, xylenes,
ethers, alcohols, ketones, aldehydes, peroxides, chlorates, bromates,
carbides, hydrides and sulfides, and any other substances which the
Town, the state, or the EPA has notified the user is a fire hazard
to the system.
(2)
Solid or viscous substances which may cause obstruction to the flow
in a sewer or other interference with the operation of the wastewater
treatment facilities including grease, 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,
waste paper, 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 6.0 or greater than 9.0, or
wastewater having any other corrosive property capable of causing
damage or hazard to 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 humans or animals, create a toxic effect in the receiving waters
of the POTW, or exceed the limitation 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. This includes
any wastewater having a lethal concentration of 50% (LC50) as determined by a toxicity test of 96 hours or less
using 100% of the industrial user's discharge and aquatic test
species chosen by the Director.
(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 entry
into the sewers for maintenance and repair.
(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 or any criteria,
guidelines, or regulations affecting sludge use or disposal developed
pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic
Substances Control Act, or state criteria applicable to the sludge
management method being used.
(7)
Any substance which will cause the POTW to violate its RIPDES permit
and/or state disposal system permit or the receiving water quality
standards.
(8)
Any wastewater with objectionable color not removed in the treatment
process, including 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 a wastewater discharge which causes the wastewater temperature
at the point of introduction to the POTW treatment plant to exceed
29° C. (85° F.) at any time.
(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 qualities 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 Director in compliance with applicable state or federal regulations.
(12)
No user shall contribute or cause to be contributed, directly
or indirectly, any pollutant or wastewater which will pass through
the POTW into the waters of Greenwich Cove.
(13)
Any wastewater which causes a hazard to human life or creates
a public nuisance.
(14)
Oil and grease:
(a)
Oil and grease concentrations of 100 mg/l or amounts from industrial
facilities violating federal pretreatment standards.
(b)
Wastewater from industrial facilities containing floatable fats
or oil, wax, grease, petroleum oil, cutting oil, or products of mineral
oil origin that may cause interference or pass-through.
(15)
Unpolluted waters: Any unpolluted water including water from
cooling systems or of storm water or groundwater origin, which, in
the opinion of the Director, will significantly increase the hydraulic
load on the collection system. This includes, but is not limited to,
stormwater, surface water, groundwater, artesian well water, roof
runoff, subsurface drainage, swimming pools drainage, condensate,
deionized water, cooling water and unpolluted wastewater.
(16)
Corrosive wastes: Any waste which will cause corrosion or deterioration
of the treatment system. All nondomestic wastes discharged to the
public sewer system must have a pH value in the range of 6.0 to 9.0
standard units. Prohibited materials include, but are not limited
to, acids, bases, hydroxides, peroxides, sulfides, concentrated chloride
and fluoride compounds, and substances which will react with water
to form corrosive products.
(17)
Hazardous waste: Any material identified as hazardous waste
according to 40 CFR, Part 261.
(18)
Infectious waste: Any infectious or medical waste except such
waste which receives infectious waste pretreatment and meets the approval
of the Director.
(19)
BOD, suspended solids, total nitrogen and ammonia, and flow:
Industrial surcharge requirements will be in effect for BOD greater
than 250 mg/l and TSS greater than 250 mg/l. Total nitrogen in excess
of 40 mg/l and ammonia in excess of 30 mg/l will also be subject to
industrial surcharges. Industries exceeding these limitations shall
be considered "significant" and shall require permitting. Flow reflects
each industry's average daily discharge. In the event that loadings
to the treatment facility approach capacity, the Town reserves the
right to place more stringent limitations on these parameters.
B.
When the Director determines that a user is contributing to the POTW
any of the enumerated substances in this section in such amounts as
to interfere with the operation of the POTW or otherwise inhibit the
achievement of the objectives of this chapter the Director shall:
(1)
Advise the user of the impact of the contribution on the POTW; and
(2)
Develop effluent limitations for such user to correct the interference
with the POTW.
(3)
Require payment to cover the added cost of handling and treating
the wastes not covered by existing sewer charges under the provisions
of this chapter.
A.
In accordance with and consistent with the objectives of this chapter,
the Director may establish specific limitations on pollutant discharges
to the Town's POTW. The Director shall limit any specific pollutant
discharges where such limitation is considered in the best interests
of the Town in properly maintaining and operating the POTW.
B.
No user shall discharge process wastewater into the facilities of
the Town's wastewater treatment facilities in concentrations
exceeding the following limitations:
|
Parameter
|
Daily Maximum Limitation
(mg/l)1
|
|---|---|
|
Cadmium
|
0.024
|
|
Chromium
|
0.719
|
|
Copper
|
0.95
|
|
Lead
|
0.22
|
|
Silver
|
0.159
|
|
Zinc
|
1.21
|
|
Nickel
|
0.137
|
|
Cyanide
|
0.112
|
|
Total fluoride
|
28.45
|
|
Mercury
|
0.0173
|
|
Arsenic
|
0.0178
|
|
Oil and grease
|
100
|
|
TTO2
|
1.5
|
|
TPH
|
40
|
|
pH
|
6.0 - 9.0
|
|
BOD2
|
5003
|
|
TSS2
|
5003
|
|
BOD and TSS
|
20#/d4
|
|
NOTES:
| |
|
1
|
All units are in mg/l except as noted.
|
|
2
|
"Total toxic organics" shall mean the summation of all quantifiable
values equal to or greater than 0.001 mg/l of toxic organics as compiled
in the most recent EPATest Methods 608, 624 and 625.
|
|
3
|
All associated industries with the exception of SIC 2082 (Malt
Beverages), 2084 (Wines, Brandy and Brandy Spirits) and 2085 (Distilled
and Blended Liquors).
|
|
4
|
Applicable to significant industrial users (SIU) in SIC Category
2082, 2084 and 2085.
|
A.
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 chapter for sources
in that subcategory, shall immediately supersede the limitations imposed
under this chapter. The Director shall notify all affected users of
the applicable reporting requirements under 40 CFR 403.12.
B.
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 of a 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 in 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.
State requirements and limitations on discharges shall apply
in any case where they are more stringent than federal standards or
those in this chapter.
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 § 134-1.
No user shall 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 or state.
A.
Protection required. 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 within
180 days of the effective date of the ordinance from which this chapter
is derived. No user who commences contribution to the POTW after the
effective date of the ordinance from which this chapter is derived
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 and notify the POTW of the incident. The notification shall
include location of discharge, type of waste, concentration and volume,
and corrective actions.
B.
Written notice. Within five days following an accidental discharge,
the user shall submit to the Director 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 chapter or other applicable law.
C.
Notice to employees. 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.
Privately owned and operated pump stations and collection systems
connected to the POTW must adhere to the following:
A.
Owners of privately owned wastewater treatment facilities shall maintain
the system in good working order. Proper operation and maintenance
shall include effective performance based on facility design, adequate
operator staffing and training, and adequate laboratory and process
controls, including quality assurance procedures as determined to
be appropriate by the Town and backup or auxiliary facilities or similar
systems to assure compliance or effective performance. Proper operation
and maintenance must include emergency procedures and reporting requirements
in case of power outages, natural disaster, labor shortage (whether
the result of intentional work stoppages or epidemic), equipment failure,
acts of terrorism/vandalism, or sanitary sewer overflow. Reporting
requirements shall include verbal notification to the Director and
the Rhode Island Department of Environmental Management (RIDEM) as
soon as possible, but not exceeding 24 hours of discovery of the event;
and a written report must be submitted to the Director and RIDEM not
more than five business days of the event's ending.
B.
The owner shall submit, for review and approval by the Director,
an operations and maintenance manual describing standards and procedures
by which the wastewater treatment facilities, pump station(s) and/or
collection system(s) will be staffed, operated and maintained during
normal and emergency conditions. Should development of the plan include
the practice of engineering, the plan must be prepared and certified
by a registered professional engineer (registered in the State of
Rhode Island).
(1)
Owners of existing privately owned pump stations shall submit an operations and maintenance manual within one year of passage of this chapter and pay all associated fees as presented in Chapter 93.
(2)
For newly constructed privately owned pump stations, the operations
and maintenance manual must be submitted prior to the Director issuing
a sewer permit. The fee shall be submitted at the time of the submittal.
(3)
The contents of the operations and maintenance manual shall be as
outlined in the Standard Sanitary Sewer Requirements of the Town of
East Greenwich.
C.
Provide all required easements that will allow the Town access to
the site for unannounced periodic inspections.
D.
The owner is required to conduct (at a minimum) monthly inspections
of the pump station. The inspection reports shall be forwarded to
the Director within three business days after the inspection. At a
minimum, the inspection report shall provide the name of the individual
or firm performing the inspection, hours of operation for each pump,
generator run time, summary of alarms, any maintenance undertaken
during that month, condition of the station, and recommendations.
