§ 8-4-2 General Sewer Use Requirements

8-4-2: GENERAL SEWER USE REQUIREMENTS:

8-4-2-1: PROHIBITED DISCHARGE STANDARDS:

A. General Prohibitions: No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass-through or interference. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements.

B. Specific Prohibitions: No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:

1. Pollutants which will create a fire or explosive hazard in the POTW, including, but not limited to, waste streams with a closed cup flashpoint of less than one hundred forty degrees Fahrenheit (140°F) (60°C) using the test methods specified in 40 CFR section 261.21;

2. Pollutants which will cause corrosive structural damage to the POTW, including, but not limited to, discharges with a pH lower than 5.0, unless the works is specifically designed to accommodate such discharges;

3. Pollutants which will cause corrosive structural damage to the POTW, including, but not limited to, discharges with a pH greater than 12.0;

4. Solid or viscous pollutants in amounts which will cause obstruction of the flow in the POTW resulting in interference;

5. Any pollutant, including oxygen demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which will cause interference with the POTW;

6. Any wastewater having a temperature greater than one hundred forty degrees Fahrenheit (140°F) (60°C), or which will inhibit biological activity in the SGRWRF resulting in interference, but in no case in such quantities that cause the temperature at the SGRWRF headworks to exceed one hundred four degrees Fahrenheit (104°F) (40°C);

7. Any petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass-through;

8. Any petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, exceeding one hundred milligrams per liter (100 mg/l);

9. Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause worker health and safety problems;

10. Any trucked or hauled pollutants, except at discharge points designated by the POTW, see section 8-4-3-4 of this chapter;

11. Any 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, a hazard to life, or prevent entry into the sewers for maintenance or repair;

12. Any wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant’s effluent, thereby violating SGRWRF’s UPDES permit;

13. Any wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;

14. Stormwater, surface water, groundwater, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the manager;

15. Any sludges, screenings, or other residues from the pretreatment of industrial wastes;

16. Any discharge of medical waste that causes or contributes to pass-through or interference;

17. Any wastewater causing, alone or in conjunction with other sources, the treatment plant’s effluent to fail a toxicity test; or

18. Any waste containing detergents, surface active agents, or other substances which may cause excessive foaming in the POTW.

C. Discharge: Pollutants, substances, or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW. (Ord. 2016-11-005, 11-10-2016)

8-4-2-2: NATIONAL CATEGORICAL PRETREATMENT STANDARDS:

A. National categorical pretreatment standards, specifying quantities or concentrations of pollutants or pollutant properties which may be discharged to a POTW by existing or new industrial users in specific industrial subcategories, have been established by EPA in 40 CFR chapter I, subchapter N, parts 405 through 471 and are hereby incorporated.

B. Users must comply with categorical pretreatment standards found at 40 CFR chapter I, subchapter N, parts 405 through 471.

C. When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the manager shall impose an alternate limit in accordance with 40 CFR section 403.6(e). (Ord. 2016-11-005, 11-10-2016)

8-4-2-3: STATE PRETREATMENT STANDARDS:

State of Utah pretreatment standards, established by the UAC section R317-8-8, are hereby incorporated. Any user subject to a state pretreatment standard is required to comply with the applicable standard. (Ord. 2016-11-005, 11-10-2016)

8-4-2-4: LOCAL LIMITS:

A. The manager is authorized to establish local limits pursuant to 40 CFR section 403.5(c).

B. Local limits apply at the point where the wastewater is discharged to the POTW. All limits set for metallic substances are for total metal unless indicated otherwise. The manager may impose mass limitations in addition to the concentration based limitations. The development documents for local limits are kept at SGRWRF offices and may be reviewed upon request.

C. The manager may develop best management practices (BMPs), by ordinance, or in individual wastewater discharge permits, to implement local limits and the requirements of section 8-4-2-1 of this chapter.

D. No user shall discharge pollutants in excess of the local limits established by the manager. (Ord. 2016-11-005, 11-10-2016)

8-4-2-5: SGRWRF’S RIGHT OF REVISION:

The SGRWRF reserves the right to establish, by ordinance, or in individual wastewater discharge permits, more stringent standards or requirements on discharges to the POTW consistent with the purpose of this chapter. In addition, the manager is authorized to temporarily or permanently revoke or suspend issuance of any type of permit at any time, in order to protect the POTW from pass-through or interference, or in order to maintain compliance with any UPDES permit requirement or pretreatment program requirement. The manager shall also have the right to deny new or increased contributions, or to set additional conditions on such contributions, to protect the POTW, including limits that may be more stringent than the approved local limits. (Ord. 2016-11-005, 11-10-2016)

8-4-2-6: DILUTION PROHIBITION:

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 a discharge limitation unless expressly authorized by an applicable pretreatment standard or requirement. The manager may impose mass limitations on users who are using dilution to meet applicable pretreatment standards or requirements, or in any other case when the imposition of mass limitations is appropriate. (Ord. 2016-11-005, 11-10-2016)

8-4-2-7: WASTEWATER SYSTEM:

A. Application For Wastewater Service: Any person desiring to secure, or required to secure, wastewater service, when such service is available from the city, shall apply to the water services director, or to such other person designated by the water services director, and shall pay the required fees before any wastewater connection is approved. By applying for a wastewater connection, such person agrees to be bound by this chapter and all applicable policies and regulations pertaining to the city POTW.

a. Residential Subdivisions: Residential subdivision developments are subject to city policy regarding use of, and connection to, the POTW, as well as this chapter.

b. Residential Dwelling Unit: It is mandatory that any residential dwelling unit shall be connected to the wastewater system at the expense of the owner or occupant thereof.

(1) The sole exception shall be for a single residential lot not within a platted subdivision where said lot is one acre or greater in size. In such case, a private wastewater disposal system may be utilized if a delay improvement agreement is approved and executed with the city, and easements are provided where required. Before commencement of construction of any private wastewater disposal system, the property owner or person seeking to install a private wastewater system shall submit plans, specifications, and other information deemed necessary to the Utah Department of Health, and obtain a written permit from it for installation thereof. The type, capacity, location, and layout of a private wastewater disposal system shall comply with all requirements of the Utah Department of Health. The owner of a private wastewater disposal system shall at all times operate and maintain the same in a sanitary manner and at no expense to the city.

(2) When, in the discretion of the wastewater manager, a private wastewater disposal system ceases to operate effectively or creates a sanitation hazard, direct connection to the public wastewater system may be required by the manager, in which case the private wastewater disposal system shall be closed, and its facilities disconnected and properly decommissioned.

2. Commercial, Industrial, And Other Buildings: It is mandatory that all commercial, industrial, and other buildings with wastewater service be connected to the public wastewater system. Private wastewater disposal systems shall not be allowed.

3. Enforcement: In addition to other available enforcement actions, the city may enforce the wastewater connection requirements imposed in this section by disconnecting or refusing to supply the culinary water servicing the premises until proper connection to the wastewater system has been made.

C. Ownership Of Connecting Lines: Unless provision is expressly made otherwise for ownership of laterals or lines by the owner of the adjacent property through a written agreement, all lines and laterals connecting the city POTW to a landowner or user’s premises shall be deemed to be the property of the landowner/user, and all operation and maintenance shall be at the landowner’s/user’s expense. The city shall not be liable for blockage or flow interference in laterals or connecting lines before they connect to the city wastewater line.

D. POTW Connections: Connection to, or extension of, the city wastewater main for use by a user shall be the sole responsibility of the user. Acceptance of any wastewater facility by the city for public use and maintenance shall not occur until such facility has been inspected and approved for compliance with all city, state, and federal requirements.

E. Inspection Of POTW Connections: Any connection to, extension of, or modification of, the wastewater system shall be under the direction of the water services director, and inspection of such shall be made by the appropriate inspector after installation in every case. No backfilling shall be done until the inspection is made, and the work accepted. In the event of an installation, repair, or alteration, where no building permit is required, there shall be no connection, directly or indirectly, with the wastewater system without notification to, and approval in advance from, the water services director or his designated representative, as well as the inspection after installation required above. A reasonable inspection fee shall be paid for any inspection made under this subsection.

F. Quality Of Installations And Maintenance: All wastewater mains, manholes, service laterals and other materials used in conjunction with the wastewater system shall be of such quality and specifications as required by the “city of St. George standard specifications for design and construction,” as last revised. It shall be unlawful for any person to connect any drain or service line to the POTW system unless such person is a contractor properly licensed by the state. After installation, all private service pipes, connections and other apparatus shall be maintained in good repair at the user’s expense. No person shall be allowed to dig into the street for purposes of installing, repairing or maintaining any service pipes, connections or other apparatus except under the direction of the water services director or his designated personnel who shall at all reasonable times have free access to drains and wastewater lines connecting with the wastewater system for the purpose of examination and inspection. (Ord. 2016-11-005, 11-10-2016)