(1) Unlawful discharges. Any discharge in violation of sections 6.501 to 6.596 of this code, the conditions of a discharge permit, or any other violation of sections 6.501 to 6.596 of this code is hereby declared to be a public nuisance. Such nuisance may be abated or enjoined and damages assessed therefor in accordance with other provisions in this code or in any other manner provided by law.

(2) Activities causing unlawful discharge. Any activity which could result in or cause discharges in violation of sections 6.501 to 6.596 of this code on at least one day a month for any six months during the course of 12 consecutive calendar months is hereby declared to be a public nuisance. Such nuisance may be abated or enjoined and damages assessed therefor in accordance with other provisions in this code or in any other manner provided by law.

(3) Additional personnel or monitoring devices. The city manager may order the employment of one or more personnel or the installation of secured monitoring devices to assure compliance with any abatement order. Where the city manager deems such action necessary, the city manager may select the persons to be employed as monitors. The cost for compliance with such order shall be apportioned according to the laws regarding nuisance abatement.