EPA Air · stack tests by county and year

Air-emissions stack tests in Cuyahoga County, Ohio, 2023

126Stack 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 Cuyahoga County, Ohio during 2023. 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 Cuyahoga County facility page.

Cuyahoga County, Ohio, 2023

Air-emissions stack tests in Cuyahoga County, other years

Air-emissions stack tests recorded in Cuyahoga County, Ohio, 2023

Date	Facility	Kind	Agency
2023-12-14	CORIX CLEVELAND THERMAL GENERATING LP	Pass	State
2023-12-13	CORIX CLEVELAND THERMAL GENERATING LP	Pass	State
2023-12-12	CORIX CLEVELAND THERMAL GENERATING LP	Pass	State
2023-12-08	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-12-05	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-28	CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. — high-priority violation on file	Pass	State
2023-11-28	CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. — high-priority violation on file	Pass	State
2023-11-15	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-11-10	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-10	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-10	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-10	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-10	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-10	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-09	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-11-09	FERROUS METAL PROCESSING CO.	Pass	State
2023-11-08	CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file	Pass	State
2023-10-17	THE MEDICAL CENTER COMPANY	Pass	State
2023-10-17	THE MEDICAL CENTER COMPANY	Pass	State
2023-10-17	THE MEDICAL CENTER COMPANY	Pass	State
2023-10-06	PPG INDUSTRIES OHIO, INC.	Pass	State
2023-10-06	PPG INDUSTRIES OHIO, INC.	Pass	State
2023-10-06	PPG INDUSTRIES OHIO, INC.	Pass	State
2023-10-06	PPG INDUSTRIES OHIO, INC.	Pass	State
2023-09-07	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-08-21	ALLIED CORPORATION PLANT #77	Pass	State
2023-08-21	ALLIED CORPORATION PLANT #77	Pass	State
2023-08-21	ALLIED CORPORATION PLANT #77	Pass	State
2023-08-02	TREMCO CPG	Pass	State
2023-08-02	TREMCO CPG	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Fail	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Fail	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	THE MEDICAL CENTER COMPANY	Pass	State
2023-07-26	THE MEDICAL CENTER COMPANY	Pass	State
2023-07-26	THE MEDICAL CENTER COMPANY	Pass	State
2023-07-26	THE MEDICAL CENTER COMPANY	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Fail	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Fail	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Fail	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-07-26	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-06-27	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-06-21	ALLIED CORPORATION PLANT 76	Pass	State
2023-06-21	ALLIED CORPORATION PLANT 76	Pass	State
2023-06-21	ALLIED CORPORATION PLANT 76	Pass	State
2023-06-21	ALLIED CORPORATION PLANT 76	Pass	State
2023-06-12	CHARTER MANUFACTURING COMPANY, INC.	Pass	State
2023-06-06	MOUNT ALVERNA VILLAGE	Pass	State
2023-05-17	USG INTERIORS, INC., AMERICAN METALS CORP., WESTLAKE	Pass	State
2023-05-17	USG INTERIORS, INC., AMERICAN METALS CORP., WESTLAKE	Pass	State
2023-05-17	USG INTERIORS, INC., AMERICAN METALS CORP., WESTLAKE	Pass	State
2023-05-17	USG INTERIORS, INC., AMERICAN METALS CORP., WESTLAKE	Pass	State
2023-05-08	HOWMET AEROSPACE INC.	Pass	State
2023-05-08	HOWMET AEROSPACE INC.	Pass	State
2023-05-08	HOWMET AEROSPACE INC.	Pass	State
2023-05-08	HOWMET AEROSPACE INC.	Pass	State
2023-05-08	HOWMET AEROSPACE INC.	Pass	State
2023-05-08	HOWMET AEROSPACE INC.	Pass	State
2023-04-27	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-04-21	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-04-20	SOUTHERLY WASTEWATER TREATMENT CENTER	Pass	State
2023-04-14	HOWMET AEROSPACE INC.	Pass	State
2023-04-14	HOWMET AEROSPACE INC.	Pass	State
2023-04-14	HOWMET AEROSPACE INC.	Pass	State
2023-04-14	HOWMET AEROSPACE INC.	Pass	State
2023-04-14	HOWMET AEROSPACE INC.	Pass	State
2023-04-14	HOWMET AEROSPACE INC.	Pass	State
2023-03-30	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-30	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-30	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-30	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Fail	State
2023-03-30	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-28	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-24	HOWMET AEROSPACE INC.	Pass	State
2023-03-24	HOWMET AEROSPACE INC.	Pass	State
2023-03-24	HOWMET AEROSPACE INC.	Pass	State
2023-03-24	HOWMET AEROSPACE INC.	Pass	State
2023-03-24	HOWMET AEROSPACE INC.	Pass	State
2023-03-24	HOWMET AEROSPACE INC.	Pass	State
2023-03-23	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-23	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-23	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-23	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-21	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-21	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-21	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State
2023-03-21	NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.)	Pass	State

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