(a) Certain industrial base data shall be obtained, recorded and maintained for all nongovernmental/nonresidential users. This data, as a minimum, shall consist of the average daily volume of wastewater discharged, as well as, the biochemical oxygen demand (BOD), suspended solids (SS) and toxic contaminant loadings of the discharge. PH values of the wastewater may also be used in determining its quality when compared to normal sanitary wastewater. Discharges known to contain only sanitary wastes may be evaluated with the assumption that the discharge characteristics other than flow are equivalent to those of domestic wastewater.
(b) When formal, written agreements, which reserve capacity in the wastewater treatment works exist between nongovernmental/nonresidential users and the Municipality, the total reserved capacity (used or unused) shall be utilized when compiling the industrial base data.
(c) The required industrial base data may be obtained from point monitoring, water use records, data from similar users or other methods if deemed appropriate by Municipal Council. Any of these methods may be employed singly or in conjunction with any of the other methods.
(d) Nongovernmental/nonresidential users must report to the Municipal Council or its authorized representative any substantial change in the wastewater characteristics as soon as the change is detected.
(e) An annual reidentification and reevaluation of all nongovernmental/nonresidential users shall be performed. Users whose average daily discharge constitutes more than five percent (5%) of the average daily flow from the Municipality, or whose discharge consists in whole or in part of raw or pretreated process wastewaters, or whose discharge contains toxic materials, or who are classified as industrial users subject to industrial cost recovery, shall be monitored semi- annually, as a minimum, and more often if deemed necessary by Municipal Council.
(f) All point monitoring shall be performed during periods of normal discharge.
(g) All industrial base data shall be recorded and maintained in a format similar to and consistent with Table 1 of the Appendix. This record shall be updated as noted in subsection (e) hereof.
(h) From the industrial base data presented in Table 1 and in conjunction with Section 921.11, a determination of industrial cost recovery liability for each nongovernmental/nonresidential user shall be made by Municipal Council or its authorized representative and noted in Table 1.
(Ord. 18-1980. Passed 10-13-80.)