No person shall discharge or cause to be discharged any stormwater,
surface water, groundwater, roof runoff, subsurface drainage, uncontaminated
cooling water, or unpolluted industrial process waters to any sanitary
sewer.
Stormwater and all other unpolluted drainage shall be discharged
to such sewers as are specifically designated as storm sewers or to
a natural outlet approved by the Director. Industrial cooling water
or unpolluted process waters may be discharged on approval of the
Director to a storm sewer or natural outlet.
A.
No person shall discharge or cause to be discharged into any public
sewer any liquid or waste which contains the following substances
in amounts which exceed those levels which have been established as
present in the City's potable water system:
(1)
Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive
liquid, solid or gas.
(2)
Any waters or wastes containing toxic or poisonous solids, liquids,
or gases in sufficient quantity, either singly or by interaction with
other wastes, to injure or interfere with any wastewater facility,
constitute a hazard to humans or animals, create a public nuisance,
or create any hazard in the receiving waters of the wastewater treatment
works, including but not limited to cyanide in excess of two milligrams
per liter as CN in the wastes as discharged to the public sewer.
(3)
Any herbicides and pesticides.
(4)
Any waters or wastes having a pH lower than 5.5, or having any other
corrosive property capable of causing damage or hazard to structures,
equipment, and personnel of the wastewater facility.
(5)
Solid or viscous substances in quantities or of such size capable
of causing obstruction to the flow in sewers, or others interference
with the proper operation of the wastewater facility such as, but
not limited to, ashes, cinders, sand, mud, straw, ground garbage,
whole blood, paunch manure, hair and fleshings, entrails, and paper
dishes, cups, milk containers, etc., either whole or ground by garbage
grinders.
(6)
Any amount of the following heavy metals:
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Antimony
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Chromium (tri)
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Rhenium
| |
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Arsenic
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Cobalt
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Selenium
| |
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Barium
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Copper
|
Silver
| |
|
Beryllium
|
Iron
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Strontium
| |
|
Bismuth
|
Lead
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Tellurium
| |
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Boron
|
Manganese
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Tin
| |
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Cadmium
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Mercury
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Uranyl Ion
| |
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Chromium (hexa)
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Zinc
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Nickel
| |
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Molybdenum
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B.
Dilution of toxic materials and heavy metals in lieu of removal is
not acceptable.
No person shall discharge or cause to be discharged the following
described substances, materials, waters, or wastes if it appears likely
in the opinion of the Director that such wastes can harm the wastewater
facility or equipment, have an adverse affect on the receiving stream,
or can otherwise endanger life, limb, public property, or constitute
a nuisance. In forming an opinion as to the acceptability of these
wastes, the Director will give consideration to such factors as the
quantities of subject wastes in relation to flows and velocities in
the sewers, materials of construction of the sewers, nature and capacity
of the wastewater facility, degree of treatability of wastes in the
wastewater treatment works and other pertinent factors. The substances
which must be considered include but are not limited to the following:
A.
Any liquid or vapor having a temperature higher than 100 milligrams
per liter or containing substances which may solidify or become viscous
at temperatures between 32° and 150°.
B.
Any water or waste containing fats, grease, wax, or oils, whether
emulsified or not, in excess of 100 milligrams per liter or containing
substances which may solidify or become viscous at temperatures between
32° and 150°.
C.
Any garbage that has not been properly shredded. The installation
and operation of any garbage grinder larger than those normally manufactured
and sold for residential and noncommercial use will not be installed
without specific review and approval by the Director.
D.
Any waters or wastes containing strong-acid iron-pickling wastes,
or concentrated plating solutions cannot be discharged to the wastewater
facility unless completely neutralized and approved by the Director
for discharge.
E.
Any waters or wastes containing reducing substances of an organic
or inorganic nature, toxic or nontoxic, which exert an immediate chlorine
demand shall not be discharged into the wastewater facility if discharge
of such agents will prevent the achievement of an adequate chlorine
residual in the effluent of the wastewater treatment works.
F.
Any waters or wastes containing phenols or other taste or odor-producing
substances cannot be discharged to the wastewater facility in concentrations
exceeding limits established by the Director. Dilution shall not be
used to decrease the concentrations.
G.
Any radioactive wastes or isotopes of such half-life or concentrations
as may exceed limits established by the Director in compliance with
applicable state and federal regulations.
H.
Any waters or wastes having a pH in excess of 9.5.
I.
Materials which exert or cause:
(1)
Unusual concentrations of inert suspended solids (such as, but not
limited to, fuller's earth, lime residues) or of dissolved solids
(such as, but not limited to, sodium chloride and sodium sulfate).
(2)
Excessive discoloration (such as, but not limited to, animal blood
dye wastes, and vegetable tanning solutions).
(3)
Unusual chemical oxygen demand, or biochemical oxygen demand, or
chlorine requirements in such quantities as to constitute a significant
load on the wastewater treatment works.
(4)
Slugs or shocks constituting an unusual volume of flow or concentration
of wastes which will disturb the normal functioning of the wastewater
facility.
J.
Waters or wastes containing substances which are not amenable to
treatment or reduction by the wastewater treatment works employed,
or are amenable to treatment only to such degree that the effluent
cannot meet the requirements of agencies having jurisdiction over
discharge to the receiving waters.
A.
If any waters or wastes are discharged or are proposed to be discharged
to the public sewers, which waters contain the substances or possess
the characteristics enumerated in this chapter and which in the judgment
of the Director may have a deleterious effect upon the wastewater
facilities or receiving waters, or which otherwise create a hazard
to life or constitute a public nuisance, the Director may:
B.
If the Director requires the pretreatment or equalization of waste
flows, the design and installation of the pretreated system shall
be subject to the review and approval of the Director and the State
of New Mexico and subject to the requirements of all applicable codes,
ordinances, and laws. All related expenses required for the identification
of any required process, design and installation of said process shall
be borne by and be the responsibility of the owner.
Testing of industrial waste shall be performed at least twice
a year or whenever found necessary by the Director. The person discharging
the waste shall be liable for payment of all costs arising from the
testing of the industrial waste.
Grease, oil, sand traps, bar screens or grinders shall be provided
when, in the opinion of the Director, they are necessary for the proper
handling of liquid wastes containing grease in excessive amounts,
and/or flammable wastes, sand, or other harmful ingredients or materials;
except that such traps shall not be required for private living quarters
or dwelling units. All traps, screens or grinders shall be of a type
and capacity approved by the Director and shall be located as to be
readily and easily accessible for cleaning and inspection. Grease
and oil traps shall be installed in all new filling stations, garages,
restaurants, and other new facilities where heavy discharge of grease
and oil is to be expected.
Where preliminary treatment of flow-equalizing facilities are
provided for any industrial liquid wastes, they shall be maintained
continuously in satisfactory and effective operation by the owner
at his expense.
[Amended 4-19-2006 by Ord. No. 06-04]
A.
If any owner desires a fixed cost sewer billing to be discontinued,
the owner, at his own expense, shall abandon the sewer connection
to said property. No person shall abandon any building connection
without first obtaining a written permit therefor, such permit to
be obtained from the Director or his designee.
B.
The following procedures shall be followed when abandoning sewer
connection:
C.
The abandonment of such sewer connection shall be made under the
supervision of the Wastewater Systems Operations Supervisor or Water
Director.
A.
When required by the Director, the owner of any property serviced
by a building sewer carrying industrial liquid wastes shall install
a suitable control manhole together with such necessary meters and
other appurtenances in the building sewer to facilitate observation,
sampling, and measurement of wastes.
B.
Such manhole, when required, shall be accessible and safely located,
constructed in such a manner as to prevent infiltration of ground
and surface waters, and should be constructed in accordance with plans
approved by the Director. The manhole shall be installed by the owner
at his expense and shall be maintained by him as to be safe and accessible
at all times.
A.
All measurements, tests, and analysis of the characteristics of water
and wastes shall be determined in accordance with the latest edition
of "Standard Methods" and shall be determined at the control manhole
provided, or upon suitable samples taken at said control manhole.
B.
The control manhole shall be located so that sampling of the industrial
waste will be performed before discharge into the public sewer system.
C.
Sampling shall be carried out by customarily acceptable methods to
reflect the effect of constituents upon the wastewater treatment works
and to determine the existence of hazards to life, limb and property.
(The particular analysis involved will determine whether a twenty-four-hour
composite of all discharge of a premises is approximate or whether
a grab sample or samples should be taken. Normally, but not always,
COD, BOD, and suspended solids analysis are obtained from twenty-four-hour
composites of all discharges whereas pH's are determined from
periodic grab samples.)
