City Ordinances: Chapters 97-100

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CHAPTER 97: USE OF PUBLIC SEWERS

97.01   STORM WATER.  No person shall discharge or cause to be discharged any storm water, surface water, groundwater, roof run-off, sub-surface drainage, uncontaminated cooling water, or unpolluted industrial process waters to any sanitary sewer.  Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the Superintendent.  Industrial cooling water or unpolluted process waters may be discharged on approval of the Superintendent, to a storm sewer, combined sewer, or natural outlet.

97.02   SURFACE WATERS EXCEPTION.  Special permits for discharging surface waters to a public sanitary sewer may be issued by the Council upon recommendation of the Superintendent where such discharge is deemed necessary or advisable for purposes of flushing, but any permit so issued shall be subject to revocation at any time when deemed to the best interests of the sewer system.

97.03   PROHIBITED DISCHARGES.  No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:

  1. Flammable or Explosive Material. Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas.
  2. Toxic or Poisonous Materials. 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 sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant, including but not limited to cyanides in excess of two (2) milligrams per liter as CN in the wastes as discharged to the public sewer.
  3. Corrosive Wastes. 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 sewage works.
  4. Solid or Viscous Substances. Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the sewage works such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders.
  5. Excessive B.O.D., Solids or Flow.
  6. Any waters or wastes: (i) having a five-day biochemical oxygen demand greater than 300 parts per million by weight; or (ii) containing more than 350 parts per million by weight of suspended solids; or (iii) having an average daily flow greater than two percent of the average sewage flow of the City, shall be subject to the review of the Superintendent.
  7. Where necessary in the opinion of the Superintendent, the owner shall provide, at the owner’s expense, such preliminary treatment as may be necessary to: (i) reduce the biochemical oxygen demand to 300 parts per million by weight; or (ii) reduce the suspended solids to 350 parts per million by weight; or (iii) control the quantities and rates of discharge of such waters or wastes.  Plans, specifications, and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Superintendent and no construction of such facilities shall be commenced until said approvals are obtained in writing.

97.04   RESTRICTED DISCHARGES.  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 Superintendent that such wastes can harm either the sewers, sewage treatment process, or equipment, have an adverse effect on the receiving stream or can otherwise endanger life, limb, public property, or constitute a nuisance.  The Superintendent may set limitations lower than the limitations established in the regulations below if, in the Superintendent’s opinion, more severe limitations are necessary to meet the above objectives.  In forming an opinion as to the acceptability of these wastes, the Superintendent 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 of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors.  The substances restricted are:

  1. High Temperature. Any liquid or vapor having a temperature higher than one hundred fifty degrees (150º) F (65º C).
  2. Fat, Oil, Grease. Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of 100 milligrams per liter.
  3. Viscous Substances. Water or wastes containing floatable oils, fat, or grease.
  4. Any garbage that has not been properly shredded, that is, to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers.
  5. Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solution whether neutralized or not.
  6. Toxic or Objectionable Wastes. Any waters or wastes containing iron, chromium, copper, zinc, and similar objectionable or toxic substances; or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Superintendent for such materials.
  7. Odor or Taste. Any waters or wastes containing phenols or other taste or odor producing substances, in such concentrations exceeding limits which may be established by the Superintendent as necessary, after treatment of the composite sewage, to meet the requirements of State, Federal, or other public agencies of jurisdiction for such discharge to the receiving waters.
  8. Radioactive Wastes. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Superintendent in compliance with applicable State or Federal regulations.
  9. Excess Alkalinity. Any waters or wastes having a pH in excess of 9.5.
  10. Unusual Wastes. Materials which exert or cause:
    1. Unusual concentrations of inert suspended solids (such as, but not limited to, Fullers earth, lime slurries, and 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 dye wastes and vegetable tanning solutions).
    3. Unusual B.O.D., chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
    4. Unusual volume of flow or concentration of wastes constituting “slugs” as defined in Section 95.02(22) of this Code of Ordinances.
  11. Noxious or Malodorous Gases. Any noxious or malodorous gas or other substance which either singly or by interaction with other wastes is capable of creating a public nuisance or hazard to life or of preventing entry into sewers for their maintenance and repair.
  12. Damaging Substances. Any waters, wastes, materials or substances which react with water or wastes in the sewer system to release noxious gases, develop color of undesirable intensity, form suspended solids in objectionable concentration or create any other condition deleterious to structures and treatment processes.
  13. Untreatable Wastes. Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.

97.05   RESTRICTED DISCHARGES – POWERS.  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 Section 97.04 and which in the judgment of the Superintendent may have a deleterious effect upon the sewage works, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Superintendent may:

  1. Reject the wastes by requiring disconnection from the public sewage system;
  2. Require pretreatment to an acceptable condition for discharge to the public sewers;
  3. Controls Imposed. Require control over the quantities and rates of discharge; and/or
  4. Special Charges. Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of Chapter 99.

97.06   TREATMENT AGREEMENT.  The City may require any contributor to enter into a treatment agreement in accordance with established State or Federal requirements.

97.07   ADDITIONAL INFORMATION REQUIREMENTS.  The Superintendent may require a user of sewer services to provide information needed to determine compliance with this chapter.  These requirements may include:

  1. Wastewaters discharge peak rate and volume over a specified period of time.
  2. Chemical analysis of wastewaters.
  3. Information on raw materials, processes, and products affecting wastewater volume and quality.
  4. Quantity and disposition of specific liquid, sludge, oil, solvent, or other materials important to sewer use control.
  5. A plot plan of sewers of the user’s property showing sewer and pretreatment facility location.
  6. Details of wastewater pretreatment facilities.
  7. Details of systems to prevent and control the losses of materials through spills to the public sewer.

97.08   SPECIAL FACILITIES.  If the Superintendent permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the Superintendent and subject to the requirements of all applicable codes, ordinances, and laws.  Where preliminary treatment or flow-equalizing facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at the owner’s expense.

97.09   CONTROL MANHOLES.  When required by the Superintendent, the owner of any property serviced by a building sewer carrying industrial 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 the wastes.  Such manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by the Superintendent.  The manhole shall be installed by the owner at the owner’s expense, and shall be maintained by the owner so as to be safe and accessible at all times.

97.10   TESTING OF WASTES.  All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association, and shall be determined at the control manhole provided, or upon suitable samples taken at said control manhole.  In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected.  Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb, and property.  (The particular analyses involved will determine whether a 24-hour composite of all outfalls of a premises is appropriate or whether a grab sample or samples should be taken.  Normally, but not always, B.O.D. and suspended solids analyses are obtained from 24-hour composites of all outfalls whereas pH’s are determined from periodic

CHAPTER 98: ON-SITE WASTEWATER SYSTEMS

98.01   WHEN PROHIBITED.  Except as otherwise provided in this chapter, it is unlawful to construct or maintain any on-site wastewater treatment and disposal system or other facility intended or used for the disposal of sewage. (Code of Iowa, Sec. 364.12[3f])

98.02   WHEN REQUIRED.  When a public sanitary sewer is not available under the provisions of Section 95.05, every building wherein persons reside, congregate or are employed shall be provided with an approved on-site wastewater treatment and disposal system complying with the provisions of this chapter. (IAC, 567-69.1[3])

98.03   COMPLIANCE WITH REGULATIONS.  The type, capacity, location and layout of a private on-site wastewater treatment and disposal system shall comply with the specifications and requirements set forth by the Iowa Administrative Code 567, Chapter 69, and with such additional requirements as are prescribed by the regulations of the County Board of Health. (IAC, 567-69.1[3 & 4])

98.04   PERMIT REQUIRED.  No person shall install or alter an on-site wastewater treatment and disposal system without first obtaining a permit from the County Board of Health.

98.05   DISCHARGE RESTRICTIONS.  It is unlawful to discharge any wastewater from an on-site wastewater treatment and disposal system (except under an NPDES permit) to any ditch, stream, pond, lake, natural or artificial waterway, drain tile or to the surface of the ground. (IAC, 567-69.1[3])

98.06   MAINTENANCE OF SYSTEM.  The owner of an on-site wastewater treatment and disposal system shall operate and maintain the system in a sanitary manner at all times and at no expense to the City.

98.07   SYSTEMS ABANDONED.  At such time as a public sewer becomes available to a property served by an on-site wastewater treatment and disposal system, as provided in Section 95.05, a direct connection shall be made to the public sewer in compliance with these Sanitary Sewer chapters and the on-site wastewater treatment and disposal system shall be abandoned and filled with suitable material. (Code of Iowa, Sec. 364.12[3f])

98.08   DISPOSAL OF SEPTAGE.  No person shall dispose of septage from an on-site treatment system at any location except an approved disposal site.

 

CHAPTER 99: SEWER SERVICE CHARGES

99.01   SEWER SERVICE CHARGES REQUIRED.  Every customer shall pay to the City sewer service fees as hereinafter provided. (Code of Iowa, Sec. 384.84)

99.02   RATE.  Each customer shall pay sewer service charges for the use of and for the service supplied by the municipal sanitary sewer system as follows:

  1. Residential – $27.00 per month plus $15.00 per month for capital project debt retirement.
  2. Commercial – $27.00 per month minimum, plus $15.00 per month for capital project debt retirement, plus $0.81 per 1,000 gallons of water used over 1,000 gallons in one month and $15.00 per month for capital project debt retirement.
  3. Multiple customers, including residential, business, institutional, or industrial customers, may be serviced from a single sewer system. The minimum charge for the service shall be $27.00 per month plus $15.00 per month for capital project debt retirement multiplied by the number of customers serviced from the sewage system.  It is the responsibility of the property owner to notify the Clerk of any vacancy in multiple residential and/or business units and until such notification is received the City will charge according to the total number of units serviced by the sewage system.

(Section 99.02 – Ord. 457-16 – Jun. 18 Supp.)

99.03   SPECIAL RATES.  Where, in the judgment of the Superintendent and the Council, special conditions exist to the extent that the application of the sewer charges provided in Section 99.02 would be inequitable or unfair to either the City or the customer, a special rate shall be proposed by the Superintendent and submitted to the Council for approval by resolution. (Code of Iowa, Sec. 384.84)

99.04   SURCHARGE FOR CERTAIN WASTEWATER CUSTOMERS.  For those customers who contribute wastewater, the strength of which is greater than normal domestic sewage, a surcharge in addition to the normal user charge will be collected.  The surcharge for operation and maintenance, including replacement, is:

  • CBOD/BOD, per pound (for concentrations in excess of 200 mg/l)… $0.27
  • SS, per pound (for concentrations in excess of 240 mg/l)………………. $0.16
  • Ammonia nitrogen, per pound…………………………………………………… $0.22
  • Oil and grease, per pound (for concentrations in excess of 100 mg/l) $0.11

(Section 99.04 – Ord. 457-16 – Jun. 18 Supp.)

99.05   PRIVATE WATER SYSTEMS.  Customers whose premises are served by a private water system shall pay sewer charges based upon the water used as determined by the City either by an estimate agreed to by the customer or by metering the water system at the customer’s expense.  Any negotiated, or agreed upon sales or charges shall be subject to approval of the Council.  If a customer is served by a private water system and desires to connect to the public sewer system, the Council may require that the water be tested, at the customer’s expense, to determine that such water will not or does not detrimentally affect the public sewer system.  Should it be determined that the water will or does have a detrimental effect on the public sewer system, the Council may require a water connection to the public water system. (Code of Iowa, Sec. 384.84)

99.06   PAYMENT OF BILLS.  All sewer service charges are due and payable under the same terms and conditions provided for payment of a combined service account as contained in Section 92.04 of this Code of Ordinances.  Sewer service may be discontinued in accordance with the provisions contained in Section 92.05 if the combined service account becomes delinquent, and the provisions contained in Section 92.08 relating to lien notices shall also apply in the event of a delinquent account.

99.07   LIEN FOR NONPAYMENT.  Except as provided for in Section 92.07 of this Code of Ordinances, the owner of the premises served and any lessee or tenant thereof shall be jointly and severally liable for sewer service charges to the premises.  Sewer service charges remaining unpaid and delinquent shall constitute a lien upon the premises served and shall be certified by the Clerk to the County Treasurer for collection in the same manner as property taxes. (Code of Iowa, Sec. 384.84)

99.08   SPECIAL AGREEMENTS PERMITTED.  No statement in these chapters shall be construed as preventing a special agreement, arrangement or contract between the Council, and any industrial concern whereby an industrial waste of unusual strength or character may be accepted subject to special conditions, rate and cost as established by the Council.

 

CHAPTER 100: SEWER EXTENSIONS

100.01 PURPOSE.  The purpose of this chapter is to provide a means and method for the extension of sewers to serve property not served by an existing sewer line so as to preserve and improve the peace, safety, health, welfare, comfort and convenience of the residents of the City.

100.02 DEFINITION.  For the purpose of this chapter, “builder” means the owner of land who causes a sanitary sewer to be installed under the provisions of this chapter.  Such term includes the heirs, successors or assigns of such owner.

100.03 CONSTRUCTION BY CITY.  An owner of land abutting or adjoining a public street where no sanitary sewer has been installed may make application to the Council for the installation of a sanitary sewer in said street for the purpose of serving the property in accordance with the following:

  1. Application and Deposit. A written request for such installation, and a sum equal to the cost as estimated by the City of construction from the point where the sanitary sewer is presently installed and terminates to the point where the most distant boundary of the owner’s lot abuts the said public street, shall be submitted to the Council.
  2. Construction. Upon receipt of the deposit, the City shall construct the sanitary sewer for the purpose of serving the property of the applicant (builder), as soon as such construction can reasonably be accomplished.
  3. Additional Costs. In the event the actual cost to the City of installation of the sanitary sewer is in excess of the estimated cost, the builder agrees to reimburse the City for the actual additional cost within thirty (30) days after the presentation of a bill for such additional cost.
  4. Lien Authorized. In the event of the failure of the builder to reimburse the City, as specified in subsection 3 above, the total of the additional cost shall be certified to the County Treasurer as a special assessment lien against the builder’s real estate.  In the written request for installation of the sanitary sewer, the landowner shall waive all objections to jurisdiction and rights to notice and consent to the entry of such a special assessment lien against the real estate.
  5. Connecting Property. The expense of connecting the property of the builder to the sanitary sewer laid in the public street shall be borne by the builder, in addition to the cost of constructing said sewer, but such connection shall be under the supervision of the City.

100.04 CONSTRUCTION BY OWNER.  In the event an owner of land abutting or adjoining a public street in which no sewer has been previously installed desires to construct said sewer at the owner’s own expense, the owner may do so, after making proper application to the City and receiving a permit to install such a sewer, in accordance with the following:

  1. City Supervision. The installation of such a sewer by a landowner at the owner’s expense shall be under the strict supervision of the City and shall, in all ways, conform to the requirements and specifications of the City.
  2. Surety Bond. When making application to the City for a permit to install such a sewer, the applicant shall post with the City a surety bond, in an amount to be set by the Council and made a matter of record in the minutes of the Council, which shall be in an amount equal to but not less than one hundred ten percent (110%) of the total estimated cost of the installation for the full distance from the termination point of the presently existing sewer to the point where the farthest boundary of the applicant’s land abuts the public street, and the bond shall guarantee the installation of the sewer in as short a time as reasonably possible and shall further indemnify the City for the cost of completing the project in the event the applicant fails to complete the project within a reasonable time, and shall further indemnify the City for all damages to the public street incurred in the installation, and shall further hold the City harmless for any and all other damages arising from the installation of the sanitary sewer.
  3. Ownership of Sewer Line. After the sewer has been installed, it shall become the property of the City.

100.05 OTHERS REQUIRED TO CONNECT.  Following the installation of a sanitary sewer under the provisions of this chapter, owners of land abutting or adjoining a public street in which such sewer has been installed, being persons other than the builder, shall be obliged to connect any sewage generating facilities into said sanitary sewer, as required by Chapter 95.

100.06 BUILDING SEWERS INSTALLED.  Each sanitary sewer constructed in a public street or right-of-way, whether constructed by the City or by a private party, shall include a stub to each abutting or adjoining lot line of the street or right-of-way on which the sewer is installed.  Each party responsible for installing such sewer shall provide the City with an accurate map showing the location of each of such stubs within thirty (30) days of the completion of the installation.

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