♦ Carcinogen
1,2-Diphenylhydrazine
CAS # 122-66-7
254,849 lbs total reported releases across all facilities and years.
Facilities listed below reported releases of this chemical to the EPA Toxic Release Inventory (TRI). Quantities are self-reported annual totals in pounds, broken out by release pathway. Click any facility name for its full compliance profile.
National Release Trend (2015–2024)
+3513738% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 7 | 2 | — |
| 2016 | 14 | 2 | +94% |
| 2017 | 48 | 2 | +241% |
| 2018 | 7 | 2 | -85% |
| 2019 | 6 | 1 | -15% |
| 2020 | 5 | 2 | -17% |
| 2021 | 3 | 2 | -40% |
| 2022 | 3 | 2 | -1% |
| 2023 | 2 | 2 | -33% |
| 2024 | 254,753 | 3 | +12674193% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Administrative and Support and Waste Management | 254,849 | 3 |
Worst Water Discharge Exceedances
Facilities that exceeded their permit limits for this chemical in discharge monitoring reports
| Facility | Reported | Limit | Exceedance | Period |
|---|---|---|---|---|
|
1144 15 STREET
DENVER, CO
|
0.01 mg/L | 0.00 | +11,264% | Sep 2021 |
|
1144 15 STREET
DENVER, CO
|
0.01 mg/L | 0.00 | +11,264% | Nov 2021 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| (VEOLIA) ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC - GUM SPRINGS PLANT | ARKADELPHIA, AR | 2024 | 254,751 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2024 | 2 | 2 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2024 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2023 | 2 | 2 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2023 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2022 | 3 | 3 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2022 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2021 | 3 | 3 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2021 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2020 | 5 | 5 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2020 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2019 | 6 | 6 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2018 | 7 | 7 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2018 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2017 | 48 | 48 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2017 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2016 | 14 | 14 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2016 | 0 | 0 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2015 | 6 | 6 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2015 | 1 | 1 | 0 |