Chlorine
CAS # 7782-50-5
54,826,981 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)
-48% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 4,882,374 | 644 | — |
| 2016 | 7,359,719 | 627 | +51% |
| 2017 | 14,119,219 | 593 | +92% |
| 2018 | 6,750,960 | 581 | -52% |
| 2019 | 979,950 | 337 | -85% |
| 2020 | 4,842,706 | 559 | +394% |
| 2021 | 9,162,686 | 554 | +89% |
| 2022 | 2,928,010 | 544 | -68% |
| 2023 | 1,245,507 | 527 | -57% |
| 2024 | 2,555,849 | 509 | +105% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Manufacturing | 53,176,355 | 636 |
| Utilities | 1,166,626 | 45 |
| Public Administration | 193,523 | 6 |
| Administrative and Support and Waste Management | 118,267 | 10 |
| Arts, Entertainment, and Recreation | 69,320 | 1 |
| Wholesale Trade | 37,849 | 48 |
| Mining, Quarrying, and Oil and Gas Extraction | 35,171 | 12 |
| Construction | 26,354 | 2 |
Worst Water Discharge Exceedances
Facilities that exceeded their permit limits for this chemical in discharge monitoring reports
| Facility | Reported | Limit | Exceedance | Period |
|---|---|---|---|---|
|
WHITMER WATER ASSOCIATION WTP
WHITMER, WV
|
0.01 mg/L | 0.00 | +2,147,483,650% | Mar 2018 |
|
WHITMER WATER ASSOCIATION WTP
WHITMER, WV
|
0.01 mg/L | 0.00 | +2,147,483,650% | Mar 2018 |
|
WHITMER WATER ASSOCIATION WTP
WHITMER, WV
|
0.01 mg/L | 0.00 | +2,147,483,650% | Jun 2018 |
|
WHITMER WATER ASSOCIATION WTP
WHITMER, WV
|
0.01 mg/L | 0.00 | +2,147,483,650% | Jun 2018 |
|
E B M U D ORINDA WATER TRTMNT PLANT
ORINDA, CA
|
0.05 mg/L | 0.00 | +2,147,483,650% | Apr 2019 |
|
E B M U D ORINDA WATER TRTMNT PLANT
ORINDA, CA
|
0.05 mg/L | 0.00 | +2,147,483,650% | Apr 2019 |
|
OH/ INW/ BH/ NE 001-004
MARTINSBURG, WV
|
0.14 mg/L | 0.00 | +2,147,483,650% | Jan 2018 |
|
WVAW - CAVE QUARTER UTILITY-TREATMENT PLANT
CHARLES TOWN, WV
|
0.00 mg/L | 0.00 | +2,147,483,650% | Dec 2024 |
|
GLADE FARMS CAMPGROUND
BRUCETON MILLS, WV
|
0.07 mg/L | 0.00 | +2,147,483,650% | Sep 2019 |
|
NATIONAL RADIO OBSERVATORY
GREEN BANK, WV
|
0.00 mg/L | 0.00 | +2,147,483,650% | Dec 2023 |
|
RICHWOOD CITY OF
RICHWOOD, WV
|
0.03 mg/L | 0.00 | +2,147,483,650% | Feb 2015 |
|
WOODS II SUBDIVISION
MARTINSBURG, WV
|
0.52 mg/L | 0.00 | +2,147,483,650% | Oct 2017 |
|
GLADE FARMS CAMPGROUND
BRUCETON MILLS, WV
|
0.00 mg/L | 0.00 | +2,147,483,650% | Jun 2025 |
|
BIG FOUR WTP
KIMBALL, WV
|
0.45 mg/L | 0.00 | +2,147,483,650% | Dec 2021 |
|
CITY OF PASO ROBLES WASTEWATER TREATMENT FACILITY
PASO ROBLES, CA
|
0.03 mg/L | 0.00 | +2,147,483,650% | Dec 2018 |
|
SIZEMORE TRAILER PARK
MAYSEL, WV
|
0.10 mg/L | 0.00 | +2,147,483,650% | Mar 2020 |
|
GLADE FARMS CAMPGROUND
BRUCETON MILLS, WV
|
0.53 mg/L | 0.00 | +2,147,483,650% | Mar 2020 |
|
SENECA SHADOWS CAMPGROUND
SENECA ROCKS, WV
|
0.04 mg/L | 0.00 | +2,147,483,650% | Sep 2017 |
|
SENECA SHADOWS CAMPGROUND
SENECA ROCKS, WV
|
0.04 mg/L | 0.00 | +2,147,483,650% | Sep 2017 |
|
SIZEMORE TRAILER PARK
MAYSEL, WV
|
0.21 mg/L | 0.00 | +2,147,483,650% | Dec 2018 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| INTEL CORPORATION RONLER ACRES CAMPUS | HILLSBORO, OR | 2024 | 10 | 10 | — |
| ALLIED NEW TECHNOLOGIES INC | PORT ST LUCIE, FL | 2024 | 10 | 10 | — |
| FLINT HILLS RESOURCES PINE BEND, LLC | ROSEMOUNT, MN | 2024 | 10 | 10 | — |
| ALLIED UNIVERSAL CORPORATION | ELLISVILLE, MS | 2024 | 10 | 10 | — |
| TRICO PRODUCTS CORPORATION | BROWNSVILLE, TX | 2024 | 10 | 10 | — |
| KUEHNE CHEMICAL COMPANY INC | NEW CASTLE, DE | 2024 | 9 | 9 | — |
| LOGAN ALUMINUM INC | RUSSELLVILLE, KY | 2024 | 7 | 7 | — |
| BRENNTAG MID-SOUTH, INC. | ORLANDO, FL | 2024 | 7 | 7 | — |
| ULRICH CHEMICAL INCORPORATED | TERRE HAUTE, IN | 2024 | 7 | 7 | — |
| CLOROX MANUFACTURING CO OF PUERTO R ICO INC | CAGUAS, PR | 2024 | 7 | 7 | — |
| US NITROGEN LLC | MIDWAY, TN | 2024 | 7 | 7 | — |
| P. B. & S. CHEMICAL COMPANY, INC. (50) | NITRO, WV | 2024 | 6 | 6 | — |
| HONDA HERITAGE CENTER | MARYSVILLE, OH | 2024 | 5 | 5 | — |
| BLEACH TECH LLC TANK EXPLOSION | PETERSBURG, VA | 2024 | 5 | 5 | — |
| GOLDEN ALUMINUM INC. - FORT LUPTON MILL | FORT LUPTON, CO | 2024 | 5 | 5 | — |
| VISKASE COMPANIES, INC. | OSCEOLA, AR | 2024 | 5 | 5 | — |
| FARMLAND FOODS INC | MILAN, MO | 2024 | 5 | 5 | — |
| HASA INC | ELOY, AZ | 2024 | 5 | 5 | — |
| HASA INC.- SAUGUS | SAUGUS, CA | 2024 | 5 | 5 | — |
| BLEACHTECH LLC | SEVILLE, OH | 2024 | 5 | 5 | — |
| INTERPLEX ETCH LOGIC | ATTLEBORO, MA | 2024 | 5 | 5 | — |
| BRENNTAG MID-SOUTH INC | KANSAS CITY, MO | 2024 | 5 | 5 | — |
| RESOLUTE FOREST PRODUCTS CALHOUN OPERATION | CALHOUN, TN | 2024 | 5 | 5 | — |
| HAWKINS INDUSTRIAL GROUP - RED ROCK | ST. PAUL, MN | 2024 | 5 | 5 | — |
| HASA INC | PITTSBURG, CA | 2024 | 5 | 5 | — |
| DOMTAR PAPER CO LLC HAWESVILLE MILL | HAWESVILLE, KY | 2024 | 5 | 5 | — |
| HASA LONGVIEW | LONGVIEW, WA | 2024 | 5 | 5 | — |
| BRENNTAG MID-SOUTH, INC. | CLEARWATER, FL | 2024 | 5 | 5 | — |
| SABIC INNOVATIVE PLASTICS US LLC | LOWNDESBORO, AL | 2024 | 4 | 4 | — |
| BRENNTAG MID-SOUTH, INC. | CHATTANOOGA, TN | 2024 | 4 | 4 | — |
| CHEM OIL CARSON TANK FARM | CARSON, CA | 2024 | 4 | 4 | — |
| JONES CHEMICAL | JACKSONVILLE, FL | 2024 | 3 | 3 | — |
| BILLERUD QUINNESEC LLC | QUINNESEC, MI | 2024 | 3 | 3 | — |
| BRENNTAG MID-SOUTH INC | HENDERSON, KY | 2024 | 3 | 3 | — |
| DUPONT PONTCHARTRAIN SITE | LA PLACE, LA | 2024 | 3 | 3 | — |
| CHEMART COMPANY | LINCOLN, RI | 2024 | 3 | 3 | — |
| CARBONFREE CHEMICALS | SAN ANTONIO, TX | 2024 | 3 | 3 | — |
| SPECTRO ALLOYS CORP | ROSEMOUNT, MN | 2024 | 2 | 2 | — |
| VERTEX | CAMANCHE, IA | 2024 | 2 | 2 | — |
| JCI JONES CHEMICALS INC | BARBERTON, OH | 2024 | 2 | 2 | — |
| HAWKINS, INC. - MEMPHIS | MEMPHIS, TN | 2024 | 2 | 2 | — |
| WILLOW SPRINGS TERMINAL | WILLOW SPRINGS, IL | 2024 | 2 | 2 | — |
| JCI JONES CHEMICALS, INC. - WARWICK, NY | WARWICK, NY | 2024 | 2 | 2 | — |
| NORTHSTAR CHEMICAL INC | TACOMA, WA | 2024 | 2 | 2 | — |
| K2 PURE SOLUTIONS - PITTSBURG PLANT | PITTSBURG, CA | 2024 | 2 | 2 | — |
| CLEAN HARBORS EL DORADO LLC | EL DORADO, AR | 2024 | 1 | 1 | — |
| CHEMOIL CORP | LONG BEACH, CA | 2024 | 1 | 1 | — |
| JCI JONES CHEMICALS INCORPORATED | BEECH GROVE, IN | 2024 | 1 | 1 | — |
| OCI BEAUMONT LLC | BEAUMONT, TX | 2024 | 1 | 1 | — |
| HONDA DEV. & MFG. OF AMERICA, LLC, EAST LIBERTY PLANT (0146000117) | EAST LIBERTY, OH | 2024 | 1 | 1 | — |