Environmental go Results Found: 3 Button group with nested dropdown CG Public Health 2570 4th St SW Ste 1 Mason City IA 50401 (641) 421-9300 Visit Website Cerro Gordo Clean Energy District 1609 N Shore Dr Clear Lake IA 50428 (515) 724-2255 Cerro Gordo County 220 N Washington Ave Mason City IA 50401 (641) 421-3024 Visit Website