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937.05 USER CLASSES.
For the purpose of applying sanitary sewer charges, that is, user charges and debt service charges, all users of the sewage treatment works shall be classified as a member of one of the following two user classes:
(a) Nonindustrial;
(b) Industrial.
An industry may be placed in the nonindustrial user class if the industry discharges segregated domestic wastes or wastes from sanitary conveniences.
Any industry whose wastes are not domestic wastes or not wastes from sanitary conveniences shall be placed in the industrial user class.
The placement of a user within the nonindustrial user class shall be as determined by the Service Director in accordance with the above criteria.
(Ord. 92-008. Passed 1-7-92.)
937.06 USER CHARGES; WASTES OF NORMAL CONCENTRATION.
A user charge shall be levied on all users of the sewage treatment works to provide funds necessary to pay for the cost of operation, maintenance and replacement of such works. The user charges shall result in the distribution of all costs of operation, maintenance and replacement of the treatment works to each user or user class, in proportion to such user's contribution to the total sewage loading of the treatment works. Factors such as strength, volume and delivery flow rate characteristics shall be considered and included as the basis for the user's contribution to ensure a proportional distribution of operation, maintenance and replacement costs. The method to be used to establish the base user charges for sewage within the limits of normal concentration, as defined in Section 937.02, shall be defined in this section. The method to be used to establish extra strength surcharges for wastes in excess of normal concentrations shall be defined in Section 937.08.
The volume of sewage from each user shall be subject to a base user charge per 100 cubic feet, as follows:
(a) Charges for each billing period during a calendar year shall be based upon the following values for that calendar year:
(1) Estimated total operation, maintenance and replacement expenses attributed to the sewage treatment plant including a proportionate share of those costs classified as reimbursable government expenses for engineering, public service and safety, operation and maintenance fund of the City Municipal Building and vehicle insurance costs but excluding all other reimbursable general government and debt service expenses;
(2) Estimated total operating, maintenance and replacement expenses attributed to the sewage collection system including a proportionate share of those expenses classified as reimbursable government expenses as set forth in subsection (a)(1) hereof, but excluding all other reimbursable general government and debt service expenses;
(3) Estimated reimbursable government expenses of the Bureau of Buildings, Inspections, Licenses and Permits;
(4) Estimated annual revenue from extra strength surcharges;
(5) Estimated water consumption of users located inside the municipal limits of the City subject to sanitary sewer charges;
(6) Estimated water consumption of users located outside the municipal limits of the City subject to sanitary sewer charges;
(7) Estimated sums of the water consumption of users located both inside and outside the municipal limits of the City subject to sanitary sewer charges;
(b) The base user charge for sewage treatment per 100 cubic feet for each inside and outside City user shall equal:
(1) The total operation, maintenance and replacement expenses pursuant to subsection(a)(1) hereof, minus;
(2) The estimated annual revenue from extra strength surcharges pursuant to subsection (a)(4) hereof, all divided by;
(3) The estimated water consumption subject to sanitary sewer charges in 100 cubic feet pursuant to subsection (a)(7) hereof.
(c) The base user charge for conveyance of sanitary sewage per 100 cubic feet for each outside City user of the City sanitary sewer system shall equal:
(1) The total operation, maintenance and replacement expenses pursuant to subsection (a)(2) hereof times;
(2) The proportionate length of the City sewage collection system required by an outside City user to convey sewage from the municipal limits to the sewage treatment plant for treatment, divided by;
(3) The estimated water consumption subject to sanitary sewer charges in 100 cubic feet pursuant to subsection (a)(5) hereof.
(d) The base user charge for conveyance of sanitary sewage per 100 cubic feet for each inside City user of the City sanitary sewer system shall equal:
(1) The total operation, maintenance and replacement expenses pursuant to subsection (a)(2) hereof, plus;
(2) The estimated reimbursable government expenses of the Bureau of Buildings, Inspections, Licenses and Permits pursuant to subsection (a)(3), minus;
(3) The revenue received from outside City users pursuant to subsection (c) hereof, all divided by;
(4) The estimated water consumption subject to sanitary sewer charges, in 100 cubic feet pursuant to subsection (a)(6) hereof.
(Ord. 92-008. Passed 1-7-92.)
937.07 ADMINISTRATIVE CHARGES.
An administrative charge shall be levied on all users of the sewage treatment works to provide funds necessary to pay a portion of the general government expenses pertaining to the management of the sewage works as allowed by the Ohio Revised Code. Administrative charges for the sewer related cost of building and collection, data processing and engineering shall result in the distribution of all cost related to the management of the sewage works in proportion to the costs of providing such services. The method to be used to establish the administrative charges for sewage discharged to the sewage treatment works shall be defined in this section.
Each user shall be subject to an administrative charge per customer billing, as follows:
(a) Charges for each billing period during a calendar year shall be based upon the following values for that calendar year:
(1) Estimated reimbursable general governmental expenses for the sewer related costs of billing and collection, data processing and engineering.
(2) Estimated total number of nonindustrial and industrial customer billings prepared:
(b) The adminsitrative charge per customer billing for nonindustrial and industrial users shall equal:
(1) Estimated reimbursable general governmental expenses pursuant to subsection (a)(1) hereof, divided by;
(2) Estimated total customer billings pursuant to subsection (a)(2) hereof.
(Ord. 92-008. Passed 1-7-92.)
937.08 EXTRA STRENGTH SURCHARGES.
In addition to the base user charge applicable pursuant to Section 937.06, users discharging pollutants to the sewage treatment works of the City whose average concentration, as defined in Section 937.02, in one or more classifications exceeds in any month that concentration defined as normal in Section 937.02 in the corresponding classification, shall be subject to surcharges calculated as follows:
(a) Surcharges for each billing period during a calendar year shall be based upon the following values for that calendar year:
(1) Estimated total operation, maintenance and replacement expenses attributed to the sewage treatment plant pursuant to Section 937.06(a)(1)(Cto);
(2) Estimated total pounds of BOD received at the plant (Bt);
(3) Estimated total pounds of suspended solids received at the plant (St); and
(4) Estimated total pounds of ammonia received at the plant (NHt). Data not available shall be estimated in the most practical manner possible.
(b) Surcharge on user charges per pound of BOD in excess of normal equals:
Cto X 0.28
Bt
(c) Surcharge on user charges per pound of suspended solids in excess of normal equals:
Cto X 0.20
St
(d) Surcharge on user charges per pound of ammonia in excess of normal equals:
Cto X 0.09
NHt
(e) Pounds of BOD Per billing period subject to surcharge equals (average concentrations of BOD, calculated pursuant to Section 937.02, in milligrams per liter minus 20 milligrams per liter) times volume of sewage discharged from the user to the sewage treatment works per billing period, in 100 cubic feet, times 0.00624. If average concentrations of BOD are 200 milligrams per liter or less, no surcharge for BOD shall apply.
(f) Pounds of suspended solids per billing period subject to surcharge equals (average concentrations of suspended solids, calculated pursuant to Section 937.02, in milligrams per liter minus 240 milligrams per liter) times volume of sewage discharged from the user to the sewage treatment works per billing period, in 100 cubic feet, times 0.00624. If average concentrations of suspended solids are 240 milligrams per liter or less, no surcharge for suspended solids shall apply.
(g) Pounds of ammonia per billing period subject to surcharge equals (average concentrations of ammonia, calculated pursuant to Section 937.02, in milligrams per liter minus 20 milligrams per liter) times volume of sewage discharged from the user to the sewage treatment works per billing period, in 100 cubic feet, times 0.00624. If average concentrations of ammonia are 20 milligrams per liter or less, no surcharge for ammonia shall apply.
(h) Surcharge on user charges equals (pounds of BOD calculated pursuant to subsection (e)) times (surcharge per pound calculated to subsection (b)) plus (pounds of suspended solids calculated pursuant to subsection (f)) times (surcharge per pound calculated pursuant to subsection (c)) plus (pounds of ammonia calculated pursuant to subsection (g)) times (surcharge per pound calculated pursuant to subsection (d)).
(i) Formulas as contained in subsections (b), (c) and (d) hereof shall be subject to adjustment as necessary based upon a biennial audit of sewer revenue fund expenses. Examples for calculating the rate based on formulas set forth herein are attached as Exhibit A to Ordinance 82-039. Surcharges may also be established for pollutants other than those provided for in this paragraph which are permitted to be discharged to the sewage treatment works by the City, after pretreatment, or without pretreatment.
(Ord. 92-008. Passed 1-7-92.)
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