567—90.1 (455B,17A) Scope of title. The department has jurisdiction over the surface water and groundwater of the state to prevent, abate and control pollution. As a part of that general responsibility, the department and the Iowa finance authority are jointly designated to administer the clean water state revolving fund (CWSRF) pursuant to Iowa Code sections 455B.291 to 455B.299 and the federal Clean Water Act. This chapter provides the definitions and forms in the department’s administration of the CWSRF. 567—Chapter 91 contains the criteria for rating and ranking water pollution control projects. 567—Chapter 92 contains the general project and program administration rules. 567—Chapter 93 contains rules for the nonpoint source pollution control programs.