1,1,1-Trichloroethane
CAS # 71-55-6
589,715 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)
-60% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 101,941 | 29 | — |
| 2016 | 68,905 | 26 | -32% |
| 2017 | 85,232 | 26 | +24% |
| 2018 | 126,368 | 24 | +48% |
| 2019 | 2,946 | 6 | -98% |
| 2020 | 43,491 | 26 | +1376% |
| 2021 | 41,570 | 24 | -4% |
| 2022 | 41,554 | 21 | -0% |
| 2023 | 36,650 | 22 | -12% |
| 2024 | 41,059 | 19 | +12% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Manufacturing | 379,570 | 30 |
| Administrative and Support and Waste Management | 210,136 | 18 |
| Utilities | 9 | 1 |
Worst Water Discharge Exceedances
Facilities that exceeded their permit limits for this chemical in discharge monitoring reports
| Facility | Reported | Limit | Exceedance | Period |
|---|---|---|---|---|
|
PENN COLOR INC FORMER MANVILLE, NJ FACILITY
HILLSBOROUGH TWP, NJ
|
0.00 mg/L | 0.05 | +99,999% | Jul 2018 |
|
SOMERSET ST GROUNDWATER TREATMENT FACILITY
HOPEWELL BORO, NJ
|
0.00 mg/L | 0.02 | +99,999% | Apr 2021 |
|
SOMERSET ST GROUNDWATER TREATMENT FACILITY
HOPEWELL BORO, NJ
|
0.00 mg/L | 0.05 | +99,999% | Apr 2021 |
|
TFX AVIATION, INC.
NEWBURY PARK, CA
|
0.11 kg/d | 0.00 | +4,900% | Mar 2019 |
|
RAMAPO VALLEY WELL FIELD
WEST NYACK, NY
|
0.50 mg/L | 0.01 | +4,067% | Jul 2015 |
|
WESTLAKE US 2 LLC
WESTLAKE, LA
|
9.46 kg/d | 0.38 | +2,381% | Jun 2025 |
|
MILLIKEN & COMPANY/MAGNOLIA PLANT
BLACKSBURG, SC
|
0.05 kg/d | 0.01 | +293% | Sep 2022 |
|
COOPER INDUSTRIES LLC
ZANESVILLE, OH
|
0.02 mg/L | 0.01 | +240% | Dec 2024 |
|
TRELLEBORG YSH INCORPORATED SANDUSKY PLANT
SANDUSKY, MI
|
0.03 mg/L | 0.01 | +210% | Nov 2015 |
|
PRINTING AND PUB SYS DIV
WEATHERFORD, OK
|
0.03 mg/L | 0.01 | +210% | Jun 2021 |
|
SP SCIENTIFIC
GARDINER, NY
|
0.01 mg/L | 0.01 | +180% | Feb 2025 |
|
TRANE TECHNOLOGIES GWCU
BATTLE CREEK, MI
|
0.03 mg/L | 0.01 | +175% | Oct 2024 |
|
MOOG INC
EAST AURORA, NY
|
0.02 mg/L | 0.01 | +100% | Jul 2016 |
|
MOOG INC
EAST AURORA, NY
|
0.02 mg/L | 0.01 | +80% | Jun 2021 |
|
WESTLAKE US 2 LLC
WESTLAKE, LA
|
0.23 kg/d | 0.14 | +61% | Jun 2025 |
|
AAR MOBILITY SYSTEMS
CADILLAC, MI
|
0.02 mg/L | 0.02 | +55% | Nov 2020 |
|
MILLIKEN & COMPANY/MAGNOLIA PLANT
BLACKSBURG, SC
|
0.05 kg/d | 0.04 | +51% | Sep 2022 |
|
SP SCIENTIFIC
GARDINER, NY
|
0.01 mg/L | 0.01 | +40% | Oct 2025 |
|
SP SCIENTIFIC
GARDINER, NY
|
0.01 mg/L | 0.01 | +34% | Jun 2025 |
|
HARTZELL PROPELLER: HARTZELL AIRPORT SITE
PIQUA, OH
|
0.01 mg/L | 0.01 | +30% | Jan 2018 |