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(a) A basic penalty charge of ten (10) percent of the unpaid balance, or five dollars ($5.00), whichever is greater, may be added to any user fee payment that is delinquent. Interest at the rate of one-half (0.5) percent per month shall accrue on the sum of delinquent payments and penalty charges, compounded monthly.
(b) When a user fee payment has been delinquent for more than sixty (60) days, a written notice may be sent to the address listed for such account stating the total amount of delinquent payments and penalty charges then due and the period of time for which the payment has been delinquent.
(c) If the delinquent payments and penalty charges are not paid within ten (10) working days from the date of the delinquency notice, the director or his agents may take appropriate steps to ensure that the sewer connection giving rise to the delinquency is no longer utilized until the delinquency is paid.
(Ord. No. 4376, § 2, 9-2-75; Ord. No. 4527, § 16, 6-28-76)
ARTICLE IV.
INDUSTRIAL WASTE CONTROL AND INDUSTRIAL COST RECOVERY PROGRAM
INDUSTRIAL WASTE CONTROL AND INDUSTRIAL COST RECOVERY PROGRAM
Sec. 24-40(1). Excessive peak flows means peak flow rates which are greater than four (4.0) times the average twenty-four-hour flow or two and five tenths (2.5) times the average flow during the greatest eight-hour flow period in the day.
Sec. 24-40(2). Incompatible wastes means all wastes except those which the wastewater treatment plant is specifically designed to remove. Pollutants other than suspended solids, COD and pH are considered incompatible.
Sec. 24-40(3). Industrial user means any user of publicly owned treatment works identified with Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented, under the following divisions:
(a) Division A--Agriculture, forestry and fishing;
(b) Division B--Mining;
(c) Division D--Manufacturing;
(d) Division E--Transportation, communications, electric, gas and sanitary services;
(e) Division I--Services.
Sec. 24-40(4). Major industrial user means any industrial user with a wastewater discharge equal or exceeding a rate of fifty thousand (50,000) gallons per day for a duration of thirty (30) minutes, or twenty thousand (20,000) gallons per day for any twenty-four-hour period.
Sec. 24-40(5). Minor industrial user means any industrial user discharging less than a major industrial user.
Sec. 24-40(6). Permit means industrial discharge permit unless otherwise noted, or if spelled with a lower-case "p".
Sec. 24-40(7). Trade secrets shall include, but not be limited to, process, tool, mechanism, compound, procedure, production data, or compilation of information which is not patented, which is known only to certain individuals within a commercial concern who are using it to fabricate, produce or compound an article of trade or a service having commercial value, and which gives its user an opportunity to obtain a business advantage over competitors who do not know or use it.
(Ord. No. 4672, § 5, 6-20-77)
Sec. 24-42(1). General Conditions of the Industrial Wastewater Discharge Permit.
(a) No person shall discharge or cause to be discharged industrial wastewater into the public sewer without first obtaining a permit for industrial wastewater discharge for each connection. However, certain persons as defined in minor section 24-42(2) are exempt from obtaining a discharge permit. Exemption from obtaining a permit shall not be construed as exempting a person from any other provisions in this article. In situations where an establishment or class of establishments exempt from obtaining a permit is shown to discharge prohibited substances or to exceed the concentration limitations of restricted substances, that establishment or class of establishments may be required to install pretreatment facilities or take other action to prevent the prohibited discharges.
(b) The permit may require pretreatment of industrial wastewater prior to discharge, restriction of peak discharges, relocation of a point discharge, disposal of certain restricted wastes by alternative methods, reuse of process wastewater where economically feasible, installation of metering and sampling manholes, the reporting of discharge volumes and wastewater sampling data, and the repayment of excessive treatment costs not covered by the user charge.
(c) No permit is transferable without written consent of the director.
(d) No person shall discharge industrial wastewater in excess of the quantity or quality limitations set by the permit.
(e) Any person desiring to discharge wastewater or use facilities which are not in conformance with the permit should apply to the director for an amended permit. Major industrial users shall apply for an amended permit not less often than annually. Such amended permit shall be based on the monitoring required by minor section 24-43(5).
Sec. 24-42(2). Identification of Persons Required To Obtain A Permit.
(a) Any user discharging to the public sewer system, not specifically exempt in paragraph (b), identified in the Standard Industrial Classification (SIC) Manual, 1972, Office of Management and Budget, as amended and supplemented, under the following divisions shall apply for a permit from the department of water and sewers within three (3) months after the passage of this article or prior to making a new connection:
1. Division A--Agriculture, forestry, and fishing;
2. Division B--Mining;
3. Division D--Manufacturing;
4. Division E--Transportation, communications, electric, gas and sanitary services;
5. Division I--Services.
(b) A user in the divisions listed may be exempt from obtaining a permit if it is determined that the discharges will be from primarily sanitary conveniences. The director shall establish guidelines for deciding whether a permit is required in those cases where the term "primarily" is doubtful.
(c) Where more than one (1) SIC classification is applicable to an establishment, the classification that requires the most stringent requirement shall be used.
Sec. 24-42(3). Procedure for Obtaining an Industrial Wastewater Discharge Permit. Applicants for a permit shall complete an application form available from the department of water and sewers. The completed form, along with any required plans and data, shall be processed by the department. The application shall be approved if the applicant has complied with all applicable requirements of this article and furnished to the director all requested information, and if the director determines that there is adequate capacity in the agency's facilities, based upon sound engineering criteria, to convey, treat and dispose of the wastewater. Upon approval, the director or his designated representative, will sign the application form. When properly signed, the application form shall constitute a valid industrial wastewater discharge permit.
Sec. 24-42(4). Change of permit restrictions. The director may change the restrictions or conditions of a permit when necessary to comply with Environmental Protection Agency regulations on wastewater discharges to municipal treatment systems, to reduce the levels of incompatible wastes in the treated wastewater effluent thereby allowing beneficial reuse of the effluent wastewater to comply with the requirements of the NPDES permit to discharge, or as circumstances may require.
(Ord. No. 4672, § 5, 6-20-77)
Sec. 24-43(1). Pretreatment of Industrial Waste water.
An industrial wastewater pretreatment system or device may be required by the director to treat industrial flows prior to discharge to the sewer when it is necessary to restrict or prevent the discharge of certain waste constituents to the sewer system, to smooth out peak flow rates, or to accomplish any pretreatment required by the director. All pretreatment systems or devices shall be approved by the director, but such approval shall not absolve the industrial discharger of the responsibility of meeting any industrial effluent limitation set by the director.
A gravity separation interceptor, equalizing tank, neutralizing chamber, and control manhole will be required to remove prohibited settleable and flotable solids, to equalize wastewater streams varying greatly in quantity and/or quality, to neutralize low or high pH flows, and to facilitate inspection, flow measurements and sampling, respectively. Floor drains from commercial or manufacturing buildings, warehouses, or multiuse structures shall not discharge directly to the sewer, but shall first discharge to a gravity separation interceptor.
Sec. 24-43(2). Separation of Domestic and Industrial Wastewaters. Wastewater from sanitary plumbing fixtures, including, but not limited to, restrooms, showers and drinking fountains, shall be kept separate from industrial wastewaters until the industrial wastewater passes through any required pretreatment device and the control manhole, unless the wastes are compatible with the pretreatment process.
Sec. 24-43(3). Control Manhole. The director may require a control manhole of a design approved by the director in accordance with adopted standards to be furnished and installed by major industrial wastewater dischargers to facilitate inspection, sampling and flow measurement by department personnel. Any required control manhole shall be located such that it is accessible at all times. When it is necessary to install a control manhole within a fenced-off area, the department's monitoring and inspection personnel shall have access to the manhole through an adjacent locked gate for which the department shall have keys. All control manholes shall be kept free from obstructions which prevent entering the manhole and shall be maintained to permit safe entry and working conditions. Major industrial wastewater dischargers may be required to install flow metering equipment in the control manhole. This equipment must be maintained in proper working condition and calibrated regularly to maintain accuracy.
Sec. 24-43(4). Annual Treatability Charge. An annual treatability charge or a charge per unit of offending constituent as established shall be paid by persons discharging industrial wastes which result in unusual operation and maintenance costs to the department which are not accounted for by normal unit charges for volume, suspended solids and COD under the sewer user fee system. Examples of such constituents are excessive peak flows, excessive chlorine demand, excessive immediate oxygen demand, etc. Such charges shall be reasonably calculated to defray the costs attributable to such wastes. If there is a substantial change in the strength, volume, or delivery flow rate characteristics introduced into the treatment works by an industrial user, such users' share shall be adjusted accordingly.
Sec. 24-43(5). Sampling and Metering Waste Discharges.
Industrial waste discharges shall be periodically sampled to determine quality and/or metered to determine quantity. The frequency of required sampling and/or metering of discharge volumes shall be stated on the industrial discharge permit in accordance with the nature of the wastes discharged and policies set by the director. Major industrial waste discharges shall be sampled to determine quality and metered to determine quantity, no less than annually. Samples shall be collected in such a manner as to be representative of the composition of the wastes. Samples shall be iced or preserved by methods approved by the director. Samples shall be analyzed for the constituents stated on the permit by an independent laboratory approved by the director or by the department's wastewater laboratory. The person discharging shall pay all costs of sampling and analyzing samples, whether or not the analyses are performed by a private laboratory or by the department. A person discharging wastes may request that the analysis be performed by the department's laboratory, but such requests may be refused due to the lack of manpower or testing apparatus.
The director may at any time sample and/or analyze industrial waste discharges in lieu of required sampling by the person discharging. A charge for sampling and/or analysis by the department's laboratory will be set by the director; and such charges shall be paid by the person discharging the wastes, whether the sampling and/or analyses are in lieu of required samples or are requested by the person discharging in fulfillment of his permit requirements.
(Ord. No. 4672, § 5, 6-20-77)
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