Chapter 13.15 SEWER SYSTEM REGULATIONS This chapter is included in your selections. Sections: 13.15.010 Septic tanks and cesspools – Permitted when – Nuisance when. 13.15.015 Meters. 13.15.020 Charge for sewer services. 13.15.030 Service charge discontinuance. 13.15.040 Residential service. 13.15.050 Commercial service. 13.15.060 Industrial service.