EPA Air · stack tests by county and year

Air-emissions stack tests in Polk County, Florida, 2026

61Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Polk County, Florida during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Polk County facility page.

Polk County, Florida, 2026

Air-emissions stack tests in Polk County, other years

Air-emissions stack tests recorded in Polk County, Florida, 2026

Date	Facility	Kind	Agency
2026-07-25	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-07-25	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-07-08	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-06-30	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-06-30	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-06-19	DUKE ENERGY FLORIDA, LLC	Pass	State
2026-06-19	DUKE ENERGY FLORIDA, LLC	Pass	State
2026-06-18	DUKE ENERGY FLORIDA, LLC	Pass	State
2026-06-04	LAKELAND ELECTRIC	Pass	State
2026-06-04	LAKELAND ELECTRIC	Pass	State
2026-06-03	LAKELAND ELECTRIC	Pass	State
2026-06-03	LAKELAND ELECTRIC	Pass	State
2026-06-03	BALL METAL BEVERAGE CONTAINER CORP.	Pass	State
2026-06-02	LAKELAND ELECTRIC	Pass	State
2026-06-02	LAKELAND ELECTRIC	Pass	State
2026-06-02	DUKE ENERGY FLORIDA, LLC	Pass	State
2026-06-02	DUKE ENERGY FLORIDA, LLC	Pass	State
2026-05-28	DUKE ENERGY FLORIDA, LLC	Pass	State
2026-05-20	GENERAL ASPHALT OF LAKELAND, LLC	Pass	State
2026-05-19	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-05-19	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-05-14	OWENS CORNING INSULATING SYSTEMS, LLC	Pass	State
2026-05-06	TAMPA ELECTRIC COMPANY	Pass	State
2026-05-06	TAMPA ELECTRIC COMPANY	Pass	State
2026-05-05	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-05-05	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-04-30	TAMPA ELECTRIC COMPANY	Pass	State
2026-04-30	TAMPA ELECTRIC COMPANY	Pass	State
2026-04-27	MOSAIC FERTILIZER LLC	Pass	State
2026-03-31	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-31	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-31	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-24	STANDARD SAND & SILICA CO — high-priority violation on file	Pass	State
2026-03-24	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-24	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-17	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-17	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-03-16	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-03-16	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-27	CUTRALE CITRUS JUICES USA, INC	Pass	State
2026-02-27	CUTRALE CITRUS JUICES USA, INC	Pass	State
2026-02-19	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-02-19	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-02-19	FLORIDA MUNICIPAL POWER AGENCY	Pass	State
2026-02-19	FLORIDA MUNICIPAL POWER AGENCY	Pass	State
2026-02-18	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-18	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-12	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-12	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-10	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-10	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-10	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-02-06	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-02-06	STANDARD SAND & SILICA COMPANY	Pass	State
2026-02-05	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-02-05	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-01-27	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-01-27	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-01-27	MOSAIC FERTILIZER, LLC — high-priority violation on file	Pass	State
2026-01-13	MOSAIC FERTILIZER LLC — high-priority violation on file	Pass	State
2026-01-09	LAKELAND ELECTRIC	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.