EPA Air · stack tests by county and year
Air-emissions stack tests in Northampton County, Pennsylvania, 2021
- 15Stack 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 Northampton County, Pennsylvania during 2021. 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 Northampton County facility page.
Northampton County, Pennsylvania, 2021
Air-emissions stack tests in Northampton County, other years
Air-emissions stack tests recorded in Northampton County, Pennsylvania, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-12-15 | NORTHAMPTON GEN CO/NORTHAMPTON | Pass | State |
| 2021-12-09 | HERCULES CEMENT CO LLC/STOCKERTOWN | Pending | State |
| 2021-10-19 | KEYSTONE PORTLAND CEMENT/EAST ALLEN — high-priority violation on file | Pass | State |
| 2021-08-12 | COLUMBIA GAS TRANS CORP/FORKS TWP FAC EASTON CTA | Pass | State |
| 2021-08-11 | COLUMBIA GAS TRANS CORP/FORKS TWP FAC EASTON CTA | Pass | State |
| 2021-08-11 | FRESHPET INC/BETHLEHEM | Fail | State |
| 2021-08-10 | FRESHPET INC/BETHLEHEM | Pass | State |
| 2021-08-05 | ULTRA POLY CORP/PORTLAND | Pass | State |
| 2021-07-16 | HEIDELBERG MATERIALS US CEMENT LLC/NAZARETH | Fail | State |
| 2021-06-23 | HERCULES CEMENT CO LLC/STOCKERTOWN | Pass | State |
| 2021-06-15 | PORTLAND POWER LLC/PORTLAND COMBUSTION TURBINE | Pass | State |
| 2021-06-10 | HEIDELBERG MATERIALS US CEMENT LLC/NAZARETH | Fail | State |
| 2021-05-27 | GREEN KNIGHT/PLAINFIELD LANDFILL GAS | Pass | State |
| 2021-02-23 | NORTHAMPTON GEN CO/NORTHAMPTON | Pass | State |
| 2021-01-12 | COLUMBIA GAS TRANS CORP/HELLERTOWN CT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.