Grease, oil, and sand interceptors or other grease removal device
shall be provided by the user when, in the opinion of the Director
of Utilities, they are necessary for the proper handling of wastewater
containing excessive amounts of grease and oil, or sand; except that
such interceptors shall not be required for residential users. All
interception units shall be of type and capacity acceptable to the
Director of Utilities and shall be so located to be easily accessible
for cleaning and inspection. Such interceptors shall be inspected,
cleaned, and repaired regularly, as needed, by the user at their expense.
The user shall keep and maintain records that document all cleaning,
repair and proper disposal from all such interceptors for the preceding
three years. Such records shall be kept on the site for review by
the Director of Utilities
(Ord. 3895 § 3, 2008)
Amalgam separators shall be provided by dental dischargers in
accordance with 40 CFR Part 441. The Director of Utilities may specify
additional requirements for dental dischargers that remove or place
amalgam.
(A) All dental dischargers that remove or place amalgam fillings shall
comply with the following best management practices:
(1) No person shall rinse chair-side traps, vacuum screens, pump filters,
dental tools, cuspidors or amalgam separator equipment in a sink or
other connection to the sanitary sewer.
(2) Dental dischargers shall ensure that all staff members who handle
amalgam waste are trained in the proper handling, management, and
disposal of mercury-containing material and fixer-containing solutions,
and shall maintain training records that shall be available for inspection
by the Director of Utilities during normal business hours.
(3) Amalgam waste, to include amalgam, elemental mercury, broken or unusable
amalgam capsules, extracted teeth with amalgam, chairside traps, and
vacuum system screens/filters, shall be stored and managed in accordance
with the instructions of the recycler or hauler of such materials.
(4) Dental unit water lines, chair-side traps, and vacuum lines that
discharge amalgam process wastewater to the City must not be cleaned
with oxidizing or acidic cleaners, including but not limited to bleach,
chlorine, iodine and peroxide that have a pH lower than 6 or greater
than 8.
(5) The use of bulk mercury is prohibited. Only pre-capsulated dental
amalgam is permitted.
(6) Dental practice shall complete and maintain the One-Time Compliance
Report and make it available for inspection.
(B) All users of and dischargers from dental vacuum suction systems, except as set forth in subsection
(C) of this section, shall comply with the following:
(1) An ANSI/ADA 108-2009 or ISO 11143 certified amalgam separator or
comparable device shall be installed for each dental vacuum suction
system, and a One-Time Compliance Report must be submitted to the
Director of Utilities as required in subsection (B)(1)(a), (b) and
(c) below.
(a) Dental dischargers (under any ownership) that were discharging into
the POTW prior to July 14, 2017 ("existing sources") must be in compliance
with the 40 CFR 441 by July 14, 2020 and submit a One-Time Compliance
Report certifying such by October 12, 2020.
(b) Dental dischargers whose first discharge to the POTW occurs after
July 14, 2017 ("new sources") must be in compliance with the standards
immediately and submit a One-Time Compliance Report certifying such
within 90 days after the first discharge to the POTW.
(c) If an "existing source" or "new source" dental discharger transfers
ownership, the new owner must submit a new One-Time Compliance Report
to the Director of Utilities, no later than 90 days after the transfer.
(2) The installed device must be capable of removing a minimum of 95
percent of the amalgam. The amalgam separator(s) must be sized to
accommodate the maximum discharge rate of the amalgam process wastewater.
Alternative materials and methods may be proposed to the Director
of Utilities for approval.
(3) Amalgam separators shall be maintained in accordance with manufacturer's
recommendations. Installation, certification, and maintenance records
shall be available for immediate inspection upon request by the Director
of Utilities during normal business hours.
(4) Reporting and recordkeeping requirements as specified in 40 CFR Part
441.50, or as amended, in lieu of the otherwise applicable requirements
in 40 CFR Part 404.12(b), (d), (e), and (g).
(C) The following types of dental practices are exempt from this section:
(1) Any dental discharger exclusively practicing one of the following
dental specialties: orthodontics, periodontics, oral and maxillofacial
surgery, oral and maxillofacial radiology, oral pathology, and prosthodontics.
(2) Wastewater discharges from a mobile unit operated by a dental discharger.
(3) Dental dischargers that do not discharge any amalgam process wastewater
to a POTW, such as dental dischargers that collect all dental amalgam
process wastewater for transfer to a centralized waste treatment facility
as defined in 40 CFR Part 137.
(4) Dental dischargers that do not place dental amalgam, and do not remove
amalgam except in limited emergency or unplanned, unanticipated circumstances,
and that certify such to the Director of Utilities as required in
Part 441.50.
(Ord. 3895 § 3, 2008; Ord. 3914 § 3, 2009; Ord. 2019-016 § 12)
The Director of Utilities shall have the right to enter the
premises of any user announced or unannounced, to determine whether
the user is complying with all requirements of City ordinances and
any wastewater discharge permit or order issued hereunder. Users shall
allow the Director of Utilities ready access to all parts of the premises
for the purposes of inspection, sampling, records examination and
copying, and the performance of any additional duties.
(A) Where a user has security measures in force which require proper
identification and clearance before entry into their premises, the
user shall make necessary arrangements with its security guards so
that, upon presentation of suitable identification, the Director of
Utilities shall be permitted to enter, without delay, for the purposes
of performing specific responsibilities.
(B) The Director of Utilities shall have the right to set up or require
installation of, on the user's property, such devices as are necessary
to conduct sampling and/or metering of the user's operations.
(C) The Director of Utilities may require the industrial user to install
monitoring equipment, as necessary. The facility's sampling and monitoring
equipment shall be maintained at all times in a safe and proper operating
condition by the user at its expense. The Director of Utilities may
require the installation of such facilities on the premises of the
user at a location which will be accessible to the Director of Utilities
at all times. All devices used to measure wastewater flow and quality
shall be calibrated and certified periodically to ensure their accuracy.
(D) Any temporary or permanent obstruction to safe and easy access to
the facility to be inspected and/or sampled shall be promptly removed
by the user at the written or verbal request of the Director of Utilities
and shall not be replaced. The costs of clearing such access shall
be the responsibility of the user.
(E) When the owner of premises fails to comply with an order to cease
and desist, allowing the entrance of surface or subsurface drainage
water from the owner's premises to the City sewer system, the Director
of Utilities shall have the right to enter the premises and to block
the flow of drainage water.
(F) Unreasonable delays in allowing the Director of Utilities access
to the user's premises shall be a violation of this title.
(Ord. 3895 § 3, 2008)
Sewage and industrial wastewater flows from nonresidential and
industrial users not required to install control manholes shall be
determined as follows:
(A) For premises where no significant portion of the water received from
any source is consumed in the principal activity of the user, or is
removed from the premises by means other than the sewerage system,
the volume of waste flow shall be equal to the total volume of water
used from all sources. Water received from each source shall be determined
by the registration shown in the corresponding water meter.
(B) For premises where a portion of the water received from any source
does not flow into the sewerage system, either because of the principal
activity of the user or because of its removal by other means, the
volume of waste flow shall be equal to the volume of water used from
all sources less the volume of water removed by the user's activity.
Water received from each source, as well as water removed, shall be
determined by the registration shown in the corresponding water meters
or by other means approved by the Director of Utilities.
(C) All meters required in subsections
(A) and
(B) of this section shall be installed in accordance with City standards at the user's expense. Existing private meters installed by the user prior to the effective date of the ordinance codified in this section shall continue in service until they are required to be replaced. Upon the Director of Utilities' determination that the meter requires replacement, the user shall pay a one time fee to have a City-maintained meter installed. A monthly service charge will be assessed to the user to cover City meter reading and maintenance costs.
(Ord. 3895 § 3, 2008)
Written reports and notices pursuant to this title will be deemed
to have been submitted or given on the date postmarked. For reports
and notices which are not mailed, the date of receipt of the report
or notice will govern.
(Ord. 3895 § 3, 2008)
Users subject to the reporting requirements of this title shall
retain, and make available for inspection and copying, all records
of information obtained pursuant to any monitoring activities required
by this title and any additional records of information obtained pursuant
to monitoring activities undertaken by the user independent of such
requirements. Records will include the date, exact place, method,
and time of sampling, and the name of the person(s) taking the samples,
the dates analyses were performed, who performed the analyses, the
analytical techniques or methods used, and the results of such analyses.
These records shall remain available for a period of at least five
years. This period will be automatically extended for the duration
of any litigation concerning the user or the City, or where the user
has been specifically notified of a longer retention period by the
Director of Utilities.
(Ord. 3895 § 3, 2008)
Information and data on a user obtained from reports, surveys,
wastewater discharge permit applications, wastewater discharge permits,
and monitoring programs, and from the Director of Utilities' inspection
and sampling activities, shall be available to the public without
restriction, unless the user specifically requests in writing, and
is able to demonstrate to the satisfaction of the Director of Utilities,
that the release of such information would divulge information, processes,
or methods of production entitled to protection as trade secrets under
applicable State law. Any such request must be asserted at the time
of submission of the information or data. When requested and demonstrated
by the user furnishing a report that such information should be held
confidential, the portions of a report which might disclose trade
secrets or secret processes shall not be made available for inspection
by the public but shall be made available immediately upon request
to governmental agencies for uses related to this title, the National
Pollutant Discharge Elimination System (NPDES) program, and in enforcement
proceedings involving the person furnishing the report. Wastewater
constituents and characteristics and other "effluent data" as defined
by 40 CFR Part 2.302 or as amended, will not be recognized as confidential
information and will be available to the public without restriction.
(Ord. 3895 § 3, 2008)