(a) "Debt service" means the payment requirements to retire the sewage treatment works debt through cash generated during the period of time that the debt is outstanding. Any incremental charge for the recovery of "debt service" may be included in the sewer service charge.
(b) “Domestic wastes” means sewerage having up to the following concentrations of pollutants:
BOD5 | 300 mg/l |
SS | 250 mg/l |
Oil and grease | 100 mg/l |
Cadmium | less than 0.001 |
Chromium (total) | less than 0.05 |
Copper | 0.044 mg/l |
Cyanide (free) | 0.050 mg/l |
Lead | 0.004 mg/l |
Mercury | less than 0.002 mg/l |
Nickel | 0.04 mg/l |
Zinc | 0.09 mg/l |
Ammonia | 20 mg/l |
Phenols | 0.02 mg/l |
Domestic strength waste does not contain detectable concentrations of other toxic pollutants as defined pursuant to Section 307 of the Act.
(c) “Operation and maintenance (O&M)” means those functions that result in expenditures during the useful life of the POTW for materials, labor, utilities, and other items, including periodic equipment replacement, which are necessary for managing and for which such works were designed and constructed.
(d) "Sewer service charge" means the basic fee levied on all users of the City sewage treatment works whose wastes do not exceed in strength the concentration values established as representative of normal domestic waste strength sewage. This charge to include the users charge as hereinafter defined and any other charge related to the construction and use of the City sewage treatment works that may be permitted by law, including debt service.
(e) "User charge" means the charge to each recipient of sewage treatment services within the City's service area, representing a proportionate share of the costs of operation and maintenance including replacement of all sewage treatment service provided.
(f) "User class" means the division of users within the City's service area, by the origin of the sewage discharged and by the similarity of the function of such users. Stated in four general classes, they are:
(1) "Commercial user" means a commercial business discharging wastewater; users not included in any other class.
(2) "Industrial user" means a person who discharges to the City's sewage treatment works liquid wastes resulting from processes employed in industrial or manufacturing, or from the development of any natural resource.
(3) "Other public authority user" means a special class of user who contributes primarily domestic waste or waste from sanitary conveniences. This class usually includes hospitals, sanitariums, prisons, or charitable institutions, schools and all other government users (Federal, State and local).
(4) "Residential user" means single family or equivalent residences which discharge only wastes from sanitary conveniences.
(Ord. 106-94. Passed 10-3-94.)