No person shall introduce or cause to be introduced into a community
sewer or the POTW any waste or wastewater which causes pass through
or interference. Additionally, no user shall introduce or cause to
be introduced into the POTW the following pollutants, substances,
or wastewater:
A.
That
create a fire or explosive hazard in the POTW, including, but not
limited to, wastestreams with a closed-cup flashpoint of less than
140 degrees Fahrenheit (60 degrees centigrade) using the test methods
specified in 40 CFR Part 261.21. Closed-cup flashpoint values may
be found in the National Institute of Occupational Safety and Health
(NIOSH) Pocket Guide to Chemical Hazards;
B.
That
have a pH lower than 6.0 or greater than 10.0, or otherwise causing
corrosive structural damage to the POTW or equipment;
C.
That
contain solids or viscous substances in amounts which will cause obstruction
of flow in the POTW resulting in interference or damage;
D.
That
include oxygen-demanding substances (BOD, etc.) which are released
at a flow rate and/or pollutant concentration which, either singly
or by interaction with other pollutants, will cause interference with
the POTW;
E.
That
cause the temperature at the POTW to be greater than 104 degrees Fahrenheit
(40 degrees centigrade), impairment or inhibition of biological treatment
processes or temperatures of greater than 140 degrees Fahrenheit (60
degrees centigrade) at the point of discharge;
F.
That
include petroleum oil, non-biodegradable cutting oil, or products
of mineral oil origin, in amounts that will cause interference or
pass through;
G.
That
result in the presence of toxic gases, vapors, or fumes within the
POTW in a quantity that may cause acute worker health and safety problems;
H.
From
any trucked or hauled pollutants, except at discharge points designated
by the City;
I.
That
are noxious or malodorous liquids, gases, solids, or other wastewater
which, either singly or by interaction with other Wastes, are sufficient
to create a public nuisance or a hazard to life, or to prevent entry
into the community sewer for maintenance and repair;
J.
That
causes the City's effluent or any other product of the treatment process,
residues, sludges, or scums, to be unsuitable for reclamation and
reuse or to interfere with the reclamation process;
K.
That
causes a detrimental environmental impact or a nuisance in the Waters
of the State or a condition unacceptable to any public agency having
regulatory jurisdiction over the City;
L.
That
create conditions at or near the City's POTW which violate any statute
or any rule, regulation, or ordinance of any public agency or State
or Federal regulatory body, or which cause the City to violate its
NPDES Permit;
M.
Quantities
or rates of flow which overload the City's collection or treatment
facilities, cause excessive City collection or treatment costs, or
use a disproportionate share of the City facilities;
N.
That
causes an LEL reading of greater than 10% as hexane at any point within
the POTW. LEL values may be found in the NIOSH Pocket Guide to Chemical
Hazards;
O.
That
causes obstruction or increased treatment costs due to the presence
of any sand, grit, straw, metal, glass, rags, feathers, tar, plastic,
wood, manure, dead animals, offal or any other solid viscous substance
which in any way interferes with the proper operation of the POTW;
or
P.
That
causes toxicity at the treatment plant or in the collection system
due to the presence of toxic or poisonous substances in sufficient
quantities to constitute a hazard to humans or animals, or to create
a hazard at the treatment plant, or to injure or interfere with any
sewage treatment processes.
Q.
Medical
wastes, except as specifically authorized by the Public Works Director
in a Wastewater Discharge Permit.
S.
Radioactive
waste.
T.
Containing
gasoline, naphtha, petroleum oils or any volatile, flammable or explosive
gas, liquid or solid, in sufficient quantities or combinations to
constitute a hazard to humans or animals, to create a hazard in the
POTW, or to injure or interfere with any sewage treatment process.
|
Pollutants, substances, or wastewater prohibited by this section
shall not be processed or stored in such a manner that it could be
discharged to the POTW.
|
(Ord. 3883 §1, 1977; Ord. 4589, 1989; Ord. 5078, 1998; Ord. 5675, 2014)
A.
Prohibited
discharge into community sewer. No person shall discharge or cause
to be discharged any storm water, surface water, ground water, subsurface
drainage, or any uncontaminated, unseptic, or non-septic cooling water,
boiler exhaust, blow-off water, non-septic wash-rack drainage, or
uncontaminated and non-septic industrial process water, directly or
indirectly, to, on or into a community sewer unless a permit has previously
been issued thereof by the City. The City may approve the discharge
of such water only when no reasonable alternative method of disposal
is available.
B.
If
a permit is granted for the discharge of such water into a community
sewer, the person shall pay the applicable user charges and fees and
meet such other conditions as required by the City.
(Ord. 3883, 1977; Ord. 4589, 1989; Ord. 5087, 1998; Ord. 5675, 2014)
No user shall discharge or cause to be discharged any slug load
of materials, chemicals, products, or waste into the POTW.
(Ord. 5675, 2014)
Waste from commercial garbage grinders shall not be discharged
into a community sewer.
(Ord. 3883, 1977; Ord. 4589, 1989; Ord. 5675, 2014)
A.
Sand
and oil interceptors. Sand and oil interceptors shall be provided
when, in the opinion of the Public Works Director, they are necessary
for the removal of sand or oil. All interceptor units shall be of
a type and capacity approved by the Public Works Director and shall
be located to be easily accessible for cleaning and inspection. Such
interceptors shall be installed, utilized and properly maintained
in continuous and efficient operation at all times and at the expense
of the user.
B.
Food
establishments. Grease and oil interceptors shall be provided at all
food establishments, or when the Health Officer of the County or the
Public Works Director determines that they are necessary for the proper
handling of liquid waste containing excessive amounts of grease or
oil. No such interceptor shall be required for private dwellings.
Grease and oil interceptors shall be installed, utilized and properly
maintained in continuous and efficient operation at all times and
at the expense of the user. All interceptors shall be of a type, capacity
and construction approved in writing by the Public Works Director.
Interceptors shall be located so as to be readily and easily accessible
for cleaning and inspection and shall be accessible at all times to
personnel from the City and the Health Officer of the County for inspection
and sampling. Food establishments which do not have a dishwashing
machine or garbage grinder and which show that the discharge does
not contribute grease or oil in excess of the limitations of this
title may apply for a variance from the requirement to install an
interceptor.
(Ord. 4589, 1989; Ord. 5675, 2014)
When directed by the Public Works Director, food establishments
shall install a sampling box of a size and type to be specified by
the Public Works Director.
(Ord. 4589, 1989; Ord. 5675, 2014)
No person shall discharge any substances directly into a manhole
or other opening in a community sewer other than through a City-approved
building sewer. The user must submit a written application and payment
of the applicable user charges and fees to the City.
(Ord. 3883, 1977; Ord. 4589, 1989; Ord. 5675, 2014)
A user proposing to discharge holding tank waste into a community
sewer must obtain a City permit. Unless allowed by the City under
the terms and conditions of the permit, a separate permit must be
obtained for each separate discharge. This permit will state the specific
location of discharge, the time of day the discharge is to occur,
the volume of the discharge and the wastewater constituents and characteristics.
If a permit is granted for discharge of such waste into a community
sewer, the user shall pay the applicable user charges and fees and
shall meet such other conditions as required by the City.
(Ord. 3883, 1977; Ord. 4589, 1989; Ord. 5675, 2014)
A.
Limits
on wastewater strength. No person shall discharge wastewater having
any of the following pollutants in excess of the following daily maximum
quantities at the point where the wastewater is discharged to the
community sewer:
490 milligrams per liter (mg/L) ammonia as N
0.93 mg/L arsenic
0.19 mg/L cadmium
4.6 mg/L copper
0.90 mg/L cyanide
1.9 mg/L lead
22 mg/L molybdenum
.064 mg/L mercury
6.4 mg/L nickel
0.93 mg/L silver
3.4 mg/L total chromium
8.1 mg/L zinc
1.8 mg/L selenium
100 mg/L total oil or grease.
All concentrations for metallic substances are for total metal,
unless indicated otherwise. The City may impose mass limitation in
addition to the concentration-based limitations above.
B.
Dilution
prohibited. No user shall ever increase the use of process waste,
or in any way attempt to dilute a discharge, as a partial or complete
substitute for adequate treatment to achieve compliance with a discharge
limitation, unless expressly authorized by an applicable pretreatment
standard or requirement. The City may impose mass limitations on users
who are using dilution to meet applicable pretreatment standards or
requirements, or in cases when the imposition of mass limitation is
appropriate.
(Ord. 3883, 1977; Ord. 4589, 1989; Ord. 4775, 1992; Ord. 5078, 1998; Ord. 5675, 2014; Ord. 5977, 2020; Ord. 6124, 2023)
Smoking, open fires, the striking of matches, open flame lamps
or lanterns, and electrical equipment and appliances that will generate
or produce sparks or fire shall not be permitted in any tunnel, storm
drain, sewer or portion thereof where there is or may be an accumulation
of flammable gas in explosive quantities.
(Ord. 4589, 1989; Ord. 5675, 2014)
The City reserves the right to establish, by ordinance or in
Wastewater Discharge Permits, more stringent standards or requirements
on discharges to the POTW consistent with the purpose of this title.
(Ord. 5675, 2014)
