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HomeMy WebLinkAbout~Master - Rates and Regulations on Surcharge for High Strength Wastewater Discharges ORDINANCE NO. 3049 AN ORDINANCE TO AMEND THE MUNICIPAL CODE OF THE CITY OF AMES, IOWA BY REPEALING SECTION 28.39 THEREOF AND ENACTING A NEW SECTION 28.39 FOR THE PURPOSE OF REVISING RATES AND REGULATIONS PERTAIN- ING TO A SURCHARGE FOR HIGH STRENGTH WASTEWATER DISCHARGES AND REPEALING ALL ORDINANCES OR PARTS OF ORDINANCES IN CONFLICT HEREWITH TO THE EXTENT OF SUCH CONFLICT; AND PROVIDING A PENALTY BE IT ORDAINED, by the City Council of the City of Ames, Iowa: Section One. The Municipal Code of the City of Ames, Iowa shall be and is hereby amended by repealing Section 28.39 and enacting a new Section 28.39 as follows: "Sec. 28.39. SEWER RATES ESTABLISHED. (1) Each user shall pay for the services provided by the City based on his use of the treatment works as deter- mined by water meter readings or other appropriate methods acceptable to the City. (2) For all users, monthly user charges shall be based on actual water usage, except where a practical method of wastewater measurement is available. If a user has a consumptive use of water, or in some other manner uses water which is not discharged into the wastewater collection system, the user charge for that contributor may be based on readings of a wastewater meter(s) or separate water meter(s) installed and maintained at the user's expense and in a manner acceptable to the City. (3) The minimum charge per month shall be $3.00 for the first 100 cubic feet of water used per month. In addi- tion, for all water metered after the first 100 cubic feet per month, each user shall pay: (a) a treatment user charge rate for operation and maintenance, including replacement, of $0.24/100 cu. ft. of water used per month, (b) a sewer user charge rate for operation and main- tenance, including replacement, of $0.30/100 cu. ft. of water used per month, (c) a capital charge rate for debt retirement of $1.16/100 cu. ft. of water used per month The sewer user charge and the capital charge may be adjusted to better reflect actual benefit to the contribu- tor. (4) For those users whose wastewater has a greater strength 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: Surcharge Parameter Extra-Strength Ratemg/1 of Extra Strength BOD $0.08/lb. $0.00050/100 cf SS $0.14/lb. $0.00088/100 cf NH3 $0.20/lb. $0.00125/100 cf (5) The City shall be responsible to initially determine which users have wastewater discharges with strengths greater than normal domestic sewage. Any costs for this initial determination shall be the responsibility of the City. Based upon this initial determination , the City shall notify the user of the surcharge rate to be charged each month during the next year or until the next analytical data set is submitted. (6) Any user so identified by the City shall submit at least once each year an analytical data set for each discharge point showing the concentrations for BOD, SS, and NH This data set shall be collected in three consecu- tiv 24-hour samples of the wastewater discharge during a typical work week. These samples shall be represen- tative of the average or typical discharge from the user. After the initial determination, all costs for sample collection, analysis, and reporting shall be the responsibility of the user. If any facilities are needed in order to obtain representative samples, the user shall also be responsible for all costs of any facilities needed. (7) Any user may submit more than one analytical data set each year. These additional data sets shall be used to modify or revise the surcharge rate as appropriate. The revised surcharge rate shall be implemented at the first full billing cycle following the receipt of the data set. All costs for these additional data sets shall be the responsibility of the user. . (8) All sample collection and analytical work shall be done by competent individuals or firms regularly involved in wastewater collection and analysis. All samples and analyses shall comply with the procedures specified in the Standard Methods for the Examination of Water and Wastewater, 16th Edition, APHA-AWWA-WPCF, 1985. Any data sets which do not meet this requirement shall be rejected. (9) Any user which discharges any toxic pollutants (as defined in the Sewer Use Ordinance) which cause an increase in the cost of managing the effluent or the sludge from the City's treatment works, or any user which discharges any substance which singly or by interaction with other substances causes identifiable in- creases in the cost of operation, maintenance, or replacement of the treatment works, shall pay for such increased costs. The charge to each such user shall be as determined by the appropriate financial personnel and approved by the City Council. (10) The City will review the user charge system at least every two years and revise user charge rates as neces- sary to ensure that the system generates adequate revenues to pay the costs of operation and maintenance including replacement and that the system continues to provide for the proportional distribution of operation and maintenance including replacement costs among users. The City will notify each user at least annually, in conjunction with a regular bill, of the rate being charg- ed for operation and maintenance including replacement of the treatment works. (11) Where a customer wishes to use water for watering a lawn or garden, filling a swimming pool, or for existing single-pass air conditioning or other such use and that water does not reach the sanitary sewer system, the customer may at his option apply for and have installed a 'yard meter'. A 'yard meter' is defined as a second water meter or sub-meter on the premises installed downstream of the first or master water meter. It will be so placed as to meter outdoor water use described above which does not reach the sanitary sewer system. The 'yard meter' shall have a remote reading register outdoors as required for the master water meter. The full cost of the 'yard meter' and any associated plumbing changes shall be the responsibility of the customer. The 'yard meter' shall be furnished and owned by the City and so located as to be easily acces- sible at all times. Maintenance and replacement of the 'yard meter' shall be governed by the same require- ments applying to all other water meters owned by the City. The sewer service charge will be billed only on the difference between the two water meter readings. No minimum monthly bill for either water or sewer service shall apply to the 'yard meter'. (12) Where a 'yard meter' is not installed, but it appears in any month that more than two thousand (2,000) cubic feet of water was used by the customer in a way that the water did not reach the sanitary sewer, that amount of water shall be exempt from the sewer rate on application to the city manager. (13) The user charge ordinance shall take precedence over any terms or conditions of agreements of contracts which are inconsistent with the requirements of Section 204(b)(1)(A) of the Act and 40 CFR Part 35 dated February 17, 1984. (14) The sewer rates established and stated herein are determined by the system for development of propor- tional user charges set out, with representative compu- tations, as Appendix M to the Ames Municipal Code. Section Two. Violation of this ordinance shall constitute a municipal infraction. Section Three. All ordinances or parts of ordinances in conflict herewith are hereby repealed to the extent of such conflict, if any. Section Four. This ordinance shall be in full force and effect from and after its publication as required by law. Adopted this 23rd day of Ma.y 1989. Nancy DionigA,City Clerki F. Paul Goodland, Mayor