Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DOBER CHEMICAL CORP (HAZLE TOWNSHIP)
543 FORREST ROAD, HAZLETON, PA, 18202
Parent company: DOBER CHEMICAL CORP
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Sodium nitrite | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2-Mercaptobenzothiazole | Nonylphenol Ethoxylates | Ethylene glycol | Total (lbs) |
| 2024 | 233 | 109 | 44 | 22 | 40 | 448 |
| 2023 | 245 | 119 | 61 | 24 | 23 | 472 |
| 2022 | 188 | 97 | 39 | 21 | — | 345 |
| 2021 | 175 | 110 | 41 | 26 | — | 352 |
| 2020 | 136 | 80 | 26 | 23 | — | 265 |
| 2019 | 145 | 83 | 42 | — | — | 270 |
| 2018 | 149 | 88 | 34 | — | — | 271 |
| 2017 | 200 | 103 | 43 | — | — | 346 |
| 2016 | 2,923 | 1,778 | 541 | — | — | 5,242 |
| 2015 | 2,992 | 1,773 | 621 | — | — | 5,386 |
| 2014 | 3,327 | 2,084 | 680 | — | — | 6,091 |
| 2013 | 3,454 | 2,213 | 807 | — | — | 6,474 |
| 2012 | 2,838 | 4,904 | 539 | — | — | 8,281 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.