Jump to main content or area navigation.

Contact Us

TRI Explorer

Releases: Facility Report Click for help on this criterion

Detail columns are collapsed by default. Click the expand columns icon icon to view additional columns. Use your Browser back feature to collapse.
 

Data Source: 2024 Dataset (released November 2025) See Note     Instructions for printing wide reports


TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), for all 22 facilities, for facilities in NAICS 324 - Petroleum,NAICS 325 - Chemicals,NAICS 211 - Natural Gas Processing,NAICS 4246 - Chemical Wholesalers (added 1998),NAICS 4247 - Petroleum Bulk Terminals (added 1998),NAICS 562 - Hazardous Waste (added 1998), for All chemicals, Contra Costa County, California, 2024

Row # Facility Total On-site Disposal or Other Releases Total Off-site Disposal or Other Releases Total On- and Off-site Disposal or Other Releases
   
Display details on On-site Disposal to Class I Wells RCRA C Landfills and Other Landfills   Display details on Other On-site Disposal or Other Releases
Display details on Off-site Disposal to U.I. Wells RCRA C Landfills and Other Landfills   Display details on Other Off-site Disposal or Other Releases
 
 
sort ascending  sort descending
sort ascending  sort descending
sort ascending  sort descending
sort ascending  sort descending
1 AIR LIQUIDE LARGE INDUSTRIES US LP - RODEO HYDROGEN PLANT.1391 SAN PABLO AVENUE, RODEO CALIFORNIA 94572 (CONTRA COSTA) 24,132 222,000 246,132
 
      Ammonia (325 - Chemicals)
24,000 . 24,000
  2 22,000 22,002
 
      Methanol (325 - Chemicals)
44 . 44
 
      Nickel compounds (325 - Chemicals)
5 . 5
 
      Zinc compounds (325 - Chemicals)
1 200,000 200,001
 
      n-Hexane (325 - Chemicals)
80 . 80
2 AIR PRODUCTS & CHEMICALS INC (MARTINEZ-WATERFRONT ROAD).110 WATERFRONT RD GATE 75, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 26,771 1,578 28,349
 
      Ammonia (325 - Chemicals)
20,188 139 20,327
 
      Ethylene (325 - Chemicals)
44 . 44
 
      Methanol (325 - Chemicals)
6,503 1,439 7,942
 
      Propylene (325 - Chemicals)
36 . 36
 
      Zinc compounds (325 - Chemicals)
0 . 0
3 AIR PRODUCTS WEST COAST HYDROGEN - HP-1.3485 PACHECO BLVD, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 2,642 142 2,784
 
      Ammonia (325 - Chemicals)
1,304 63 1,367
  0 . 0
 
      Copper compounds (325 - Chemicals)
0 . 0
 
      Ethylene (325 - Chemicals)
20 . 20
 
      Methanol (325 - Chemicals)
1,304 79 1,383
 
      Propylene (325 - Chemicals)
13 . 13
 
      Zinc compounds (325 - Chemicals)
0 . 0
 
      n-Hexane (325 - Chemicals)
1 . 1
4 AIR PRODUCTS WEST COAST HYDROGEN - HP-2.1915 SHELL AVE, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 17,372 1,641 19,013
  0 . 0
 
      Ethylene (325 - Chemicals)
0 . 0
 
      Methanol (325 - Chemicals)
17,371 1,641 19,012
 
      Propylene (325 - Chemicals)
0 . 0
5 BIO-RAD LABORATORIES INC.3110 REGATTA BLVD, RICHMOND CALIFORNIA 94804 (CONTRA COSTA) 689 . 689
 
      Acrylamide (325 - Chemicals)
0 . 0
 
      Mercury (325 - Chemicals)
0 . 0
 
      Methanol (325 - Chemicals)
652 . 652
 
      Tetrachloroethylene (325 - Chemicals)
37 . 37
6 BRENNTAG PACIFIC INC..860 WHARF ST, RICHMOND CALIFORNIA 94804 (CONTRA COSTA) 500 1,700 2,200
 
      Ethylene glycol (4246 - Chemical Wholesalers (added 1998))
500 1,700 2,200
 
      Nitric acid (4246 - Chemical Wholesalers (added 1998))
. . .
7 CHEMTRADE WEST US LLC.525 CASTRO ST, RICHMOND CALIFORNIA 94801 (CONTRA COSTA) 805 . 805
  805 . 805
8 CHEVRON PRODUCTS CO RICHMOND REFINERY.841 CHEVRON WAY, RICHMOND CALIFORNIA 94801 (CONTRA COSTA) 474,172 332,127 806,299
 
      1,2,4-Trimethylbenzene (324 - Petroleum)
771 36 807
 
      1,2-Dibromoethane (324 - Petroleum)
4 . 4
 
      1,3-Butadiene (324 - Petroleum)
260 16 276
 
      Ammonia (324 - Petroleum)
272,542 2 272,544
 
      Anthracene (324 - Petroleum)
40 12 52
 
      Benzene (324 - Petroleum)
1,916 32 1,948
 
      Benzo[g,h,i]perylene (324 - Petroleum)
1 13 14
 
      Carbon disulfide (324 - Petroleum)
1,500 . 1,500
 
      Carbonyl sulfide (324 - Petroleum)
2,339 331 2,670
 
      Cobalt compounds (324 - Petroleum)
31 21,887 21,918
 
      Copper compounds (324 - Petroleum)
91 721 812
 
      Cresol (mixed isomers) (324 - Petroleum)
731 107 838
 
      Cyanide compounds (324 - Petroleum)
62 . 62
 
      Cyclohexane (324 - Petroleum)
2,081 167 2,248
 
      Diethanolamine (324 - Petroleum)
550 35,000 35,550
 
      Dioxin and dioxin-like compounds (324 - Petroleum)
** ** **
 
      Ethylbenzene (324 - Petroleum)
1,911 29 1,940
 
      Ethylene (324 - Petroleum)
4,600 16 4,616
  15,000 . 15,000
 
      Hydrogen cyanide (324 - Petroleum)
83,000 . 83,000
 
      Hydrogen sulfide (324 - Petroleum)
5,540 106 5,646
 
      Isoprene (324 - Petroleum)
12 4 16
 
      Lead compounds (324 - Petroleum)
63 2,400 2,463
 
      Mercury compounds (324 - Petroleum)
8 29 37
 
      Molybdenum trioxide (324 - Petroleum)
18 39,094 39,112
 
      Naphthalene (324 - Petroleum)
371 154 525
 
      Nickel compounds (324 - Petroleum)
407 41,048 41,455
  2,100 . 2,100
 
      Phenol (324 - Petroleum)
514 22 536
 
      Polycyclic aromatic compounds (324 - Petroleum)
35 109 143
 
      Propylene (324 - Petroleum)
27,622 16 27,638
  30,000 . 30,000
 
      Tetrachloroethylene (324 - Petroleum)
1,525 . 1,525
 
      Toluene (324 - Petroleum)
6,706 106 6,812
 
      Vanadium compounds (324 - Petroleum)
58 187,198 187,256
 
      Xylene (mixed isomers) (324 - Petroleum)
6,133 144 6,277
 
      Zinc compounds (324 - Petroleum)
1,630 3,162 4,792
 
      n-Hexane (324 - Petroleum)
4,001 167 4,168
9 CORTEVA AGRISCIENCE LLC.901 LOVERIDGE RD, PITTSBURG CALIFORNIA 94565 (CONTRA COSTA) 7,635 368,809 376,444
 
      1,2,4-Trimethylbenzene (325 - Chemicals)
301 . 301
 
      2-Methylpyridine (325 - Chemicals)
1,113 . 1,113
 
      Carbon tetrachloride (325 - Chemicals)
1,839 . 1,839
 
      Chlorine (325 - Chemicals)
136 . 136
 
      Chloroform (325 - Chemicals)
1,366 . 1,366
 
      Cumene (325 - Chemicals)
25 . 25
 
      Diisocyanates (325 - Chemicals)
0 81,519 81,519
 
      Ethylbenzene (325 - Chemicals)
114 . 114
 
      Hexachlorobenzene (325 - Chemicals)
0 . 0
  773 16 789
 
      N-Methyl-2-pyrrolidone (325 - Chemicals)
834 . 834
 
      Nitrapyrin (325 - Chemicals)
56 279,677 279,733
  0 7,597 7,597
 
      Tetrachloroethylene (325 - Chemicals)
465 . 465
 
      Xylene (mixed isomers) (325 - Chemicals)
613 . 613
10 DOUGLAS PRODUCTS & PACKAGING CO.901 LOVERIDGE RD, PITTSBURG CALIFORNIA 94565 (CONTRA COSTA) 0 . 0
 
      Sulfuryl fluoride (325 - Chemicals)
0 . 0
11 ECO SERVICES OPERATIONS CORP..100 MOCOCO RD, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 6,024 1,150 7,174
 
      Ammonia (325 - Chemicals)
3,343 . 3,343
  9 . 9
  2,668 . 2,668
 
      Vanadium compounds (325 - Chemicals)
4 1,150 1,154
12 HASA INC.1251 LOVERIDGE RD, PITTSBURG CALIFORNIA 94565 (CONTRA COSTA) 5 . 5
 
      Chlorine (325 - Chemicals)
5 . 5
13 HENKEL US OPERATIONS CORP.2850 WILLOW PASS RD, BAY POINT CALIFORNIA 94565 (CONTRA COSTA) 48 . 48
 
      Aluminum (fume or dust) (325 - Chemicals)
47 . 47
 
      Tetrabromobisphenol A (325 - Chemicals)
1 . 1
14 K2 PURE SOLUTIONS NOCAL LP.950 LOVERIDGE RD, PITTSBURG CALIFORNIA 94565 (CONTRA COSTA) 96 . 96
 
      Chlorine (325 - Chemicals)
2 . 2
  89 . 89
  5 . 5
15 MARTINEZ REFINING CO LLC.3485 PACHECO BLVD, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 699,220 35,846 735,066
 
      1,2,4-Trimethylbenzene (324 - Petroleum)
2,470 479 2,949
 
      2,4-Dimethylphenol (324 - Petroleum)
7,301 12 7,313
 
      Ammonia (324 - Petroleum)
84,500 . 84,500
 
      Anthracene (324 - Petroleum)
20 299 319
 
      Benzene (324 - Petroleum)
2,343 134 2,477
 
      Carbon disulfide (324 - Petroleum)
4,330 15 4,345
 
      Carbonyl sulfide (324 - Petroleum)
19,033 . 19,033
 
      Cresol (mixed isomers) (324 - Petroleum)
48 . 48
 
      Cumene (324 - Petroleum)
101 6 107
 
      Cyclohexane (324 - Petroleum)
1,301 . 1,301
 
      Diethanolamine (324 - Petroleum)
4 . 4
 
      Dioxin and dioxin-like compounds (324 - Petroleum)
** ** **
 
      Ethylbenzene (324 - Petroleum)
2,714 162 2,876
 
      Ethylene (324 - Petroleum)
79 . 79
  14,000 . 14,000
 
      Hydrogen cyanide (324 - Petroleum)
13,000 . 13,000
 
      Hydrogen sulfide (324 - Petroleum)
1,120 . 1,120
 
      Isoprene (324 - Petroleum)
1 . 1
 
      Lead compounds (324 - Petroleum)
336 3,710 4,046
 
      Mercury compounds (324 - Petroleum)
29 352 380
 
      Molybdenum trioxide (324 - Petroleum)
3 0 3
 
      Naphthalene (324 - Petroleum)
402 505 907
 
      Nickel compounds (324 - Petroleum)
687 15,064 15,751
  450,000 . 450,000
 
      Phenanthrene (324 - Petroleum)
21 1,894 1,915
 
      Phenol (324 - Petroleum)
411 24 435
 
      Propylene (324 - Petroleum)
6,637 . 6,637
  41,000 . 41,000
 
      Tetrachloroethylene (324 - Petroleum)
0 . 0
 
      Toluene (324 - Petroleum)
9,965 727 10,692
 
      Xylene (mixed isomers) (324 - Petroleum)
8,244 1,268 9,512
 
      Zinc compounds (324 - Petroleum)
20,000 11,195 31,195
 
      n-Hexane (324 - Petroleum)
9,121 . 9,121
16 MECS INC..1778 MONSANTO WAY, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 700 144,215 144,915
  234 . 234
 
      Vanadium (except when contained in an alloy) (325 - Chemicals)
11 51,768 51,779
 
      Vanadium compounds (325 - Chemicals)
455 92,448 92,903
17 PHILLIPS 66 RICHMOND TERMINAL.1300 CANAL BLVD, RICHMOND CALIFORNIA 94804 (CONTRA COSTA) 2,421 5 2,426
 
      1,2,4-Trimethylbenzene (4247 - Petroleum Bulk Terminals (added 1998))
175 1 176
 
      Benzene (4247 - Petroleum Bulk Terminals (added 1998))
174 . 174
 
      Benzo[g,h,i]perylene (4247 - Petroleum Bulk Terminals (added 1998))
0 . 0
 
      Cumene (4247 - Petroleum Bulk Terminals (added 1998))
19 . 19
 
      Ethylbenzene (4247 - Petroleum Bulk Terminals (added 1998))
88 . 88
 
      Naphthalene (4247 - Petroleum Bulk Terminals (added 1998))
12 . 12
 
      Polycyclic aromatic compounds (4247 - Petroleum Bulk Terminals (added 1998))
0 . 0
 
      Toluene (4247 - Petroleum Bulk Terminals (added 1998))
1,199 2 1,201
 
      Xylene (mixed isomers) (4247 - Petroleum Bulk Terminals (added 1998))
498 2 500
 
      n-Hexane (4247 - Petroleum Bulk Terminals (added 1998))
256 . 256
18 PHILLIPS 66 RODEO RENEWABLE ENERGY COMPLEX.1380 SAN PABLO AVE, RODEO CALIFORNIA 94572 (CONTRA COSTA) 199,700 107,302 307,002
 
      1,2,4-Trimethylbenzene (325 - Chemicals)
390 . 390
 
      1,3-Butadiene (325 - Chemicals)
12 . 12
 
      Ammonia (325 - Chemicals)
29,380 . 29,380
 
      Benzene (325 - Chemicals)
511 0 511
 
      Benzo[g,h,i]perylene (325 - Chemicals)
1 . 1
 
      Biphenyl (325 - Chemicals)
21 . 21
 
      Carbonyl sulfide (325 - Chemicals)
170 . 170
 
      Cumene (325 - Chemicals)
19 . 19
 
      Cyclohexane (325 - Chemicals)
218 . 218
 
      Dioxin and dioxin-like compounds (325 - Chemicals)
** ** **
 
      Ethylbenzene (325 - Chemicals)
380 1 381
 
      Ethylene (325 - Chemicals)
181 . 181
 
      Hydrogen sulfide (325 - Chemicals)
9,774 . 9,774
 
      Lead compounds (325 - Chemicals)
83 161 244
 
      Mercury compounds (325 - Chemicals)
7 11 18
 
      Molybdenum trioxide (325 - Chemicals)
0 2,600 2,600
 
      Naphthalene (325 - Chemicals)
86 . 86
 
      Nickel compounds (325 - Chemicals)
140 104,517 104,657
  140,000 . 140,000
 
      Phenol (325 - Chemicals)
5,119 . 5,119
 
      Polycyclic aromatic compounds (325 - Chemicals)
18 . 18
 
      Propylene (325 - Chemicals)
890 . 890
 
      Styrene (325 - Chemicals)
18 . 18
 
      Toluene (325 - Chemicals)
1,611 2 1,613
 
      Xylene (mixed isomers) (325 - Chemicals)
3,102 10 3,112
 
      n-Hexane (325 - Chemicals)
7,570 . 7,570
19 SAFETY-KLEEN SYSTEMS INC.801 WHARF ST, RICHMOND CALIFORNIA 94804 (CONTRA COSTA) 0 0 0
 
      Zinc compounds (324 - Petroleum)
0 0 0
20 SHELL CATALYSTS & TECHNOLOGIES - PITTSBURG.2840 WILLOW PASS RD, PITTSBURG CALIFORNIA 94565 (CONTRA COSTA) 1,267 201,463 202,730
 
      Ammonia (325 - Chemicals)
962 190 1,151
 
      Cobalt compounds (325 - Chemicals)
5 4,318 4,323
 
      Molybdenum trioxide (325 - Chemicals)
173 155,212 155,386
 
      Nickel compounds (325 - Chemicals)
44 41,743 41,787
  83 . 83
 
      Nitric acid (325 - Chemicals)
0 . 0
21 SHELL CHEMICAL LP - MARTINEZ CATALYST PLANT.10 MOCOCO RD, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 13,594 . 13,594
 
      Ammonia (325 - Chemicals)
3,248 . 3,248
 
      Silver compounds (325 - Chemicals)
6,698 . 6,698
 
      Toluene (325 - Chemicals)
3,648 . 3,648
22 TESORO REFINING & MARKETING CO LLC.150 SOLANO WAY, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 72,979 38,090 111,069
 
      1,2,4-Trimethylbenzene (325 - Chemicals)
744 3,709 4,453
 
      Ammonia (325 - Chemicals)
21,128 . 21,128
 
      Benzene (325 - Chemicals)
3,250 26 3,276
 
      Benzo[g,h,i]perylene (325 - Chemicals)
0 0 0
 
      Biphenyl (325 - Chemicals)
0 2,009 2,009
 
      Cumene (325 - Chemicals)
123 21 144
 
      Cyclohexane (325 - Chemicals)
3,080 . 3,080
 
      Ethylbenzene (325 - Chemicals)
1,250 1,320 2,570
 
      Ethylene (325 - Chemicals)
20 . 20
 
      Hydrogen sulfide (325 - Chemicals)
2,571 . 2,571
 
      Lead compounds (325 - Chemicals)
20 1,309 1,329
 
      Mercury compounds (325 - Chemicals)
1 175 176
 
      Molybdenum trioxide (325 - Chemicals)
96 . 96
 
      Naphthalene (325 - Chemicals)
108 4,224 4,332
 
      Nickel compounds (325 - Chemicals)
114 1,730 1,844
  6,100 . 6,100
 
      Polycyclic aromatic compounds (325 - Chemicals)
2 655 657
 
      Toluene (325 - Chemicals)
6,600 4,133 10,733
 
      Xylene (mixed isomers) (325 - Chemicals)
4,602 6,478 11,080
 
      Zinc compounds (325 - Chemicals)
970 12,301 13,271
 
      n-Hexane (325 - Chemicals)
22,200 . 22,200
  Total 1,550,772 1,456,069 3,006,840
Total disposal or other releases omitting double counted amounts 2,869,830

(Note that if a facility name appears multiple times within each of the below tables, the facility is a multi-establishment and submitted multiple forms for Dioxin and Dioxin-like compounds. Also in the table above, EPA has converted Dioxin and Dioxin-like compounds data from grams (as reported to EPA) into pounds.
Please refer to the Dioxin and Dioxin-like compounds table below for reported amounts of Dioxin and Dioxin-like compounds in grams. Grams can be converted to pounds by multiplying by 0.002205.)


TRI On-site and Off-site Reported Disposed of or Otherwise Released (in grams), all 3 facilities, for facilities in NAICS 324 - Petroleum,NAICS 325 - Chemicals,NAICS 211 - Natural Gas Processing,NAICS 4246 - Chemical Wholesalers (added 1998),NAICS 4247 - Petroleum Bulk Terminals (added 1998),NAICS 562 - Hazardous Waste (added 1998), for Dioxin and Dioxin-like compounds, Contra Costa County, California, 2024

Row # Facility Total On-site Disposal or Other Releases Total Off-site Disposal or Other Releases Total On- and Off-site Disposal or Other Releases
   
Display details on On-site Disposal to Class I Wells RCRA C Landfills and Other Landfills   Display details on Other On-site Disposal or Other Releases
Display details on Off-site Disposal to U.I. Wells RCRA C Landfills and Other Landfills   Display details on Other Off-site Disposal or Other Releases
 
 
sort ascending  sort descending
sort ascending  sort descending
sort ascending  sort descending
sort ascending  sort descending
1 CHEVRON PRODUCTS CO RICHMOND REFINERY.841 CHEVRON WAY, RICHMOND CALIFORNIA 94801 (CONTRA COSTA) .3716900 .0868370 .4585270
2 MARTINEZ REFINING CO LLC.3485 PACHECO BLVD, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) 4.3010000 3.0000000 7.3010000
3 PHILLIPS 66 RODEO RENEWABLE ENERGY COMPLEX.1380 SAN PABLO AVE, RODEO CALIFORNIA 94572 (CONTRA COSTA) .0190390 . .0190390
  Total 4.6917290 3.0868370 7.7785660



Dioxin and Dioxin-like Compounds Toxicity Equivalent Weight (in grams), all 3 facilities, for facilities in NAICS 324 - Petroleum,NAICS 325 - Chemicals,NAICS 211 - Natural Gas Processing,NAICS 4246 - Chemical Wholesalers (added 1998),NAICS 4247 - Petroleum Bulk Terminals (added 1998),NAICS 562 - Hazardous Waste (added 1998),Contra Costa County, California, 2024

Row # Facility Total On-site Disposal or Other Releases Total Off-site Disposal or Other Releases Total On- and Off-site Disposal or Other Releases
   
Display details on On-site Disposal to Class I Wells RCRA C Landfills and Other Landfills   Display details on Other On-site Disposal or Other Releases
Display details on Off-site Disposal to U.I. Wells RCRA C Landfills and Other Landfills   Display details on Other Off-site Disposal or Other Releases
 
 
sort ascending  sort descending
sort ascending  sort descending
sort ascending  sort descending
sort ascending  sort descending
1 CHEVRON PRODUCTS CO RICHMOND REFINERY.841 CHEVRON WAY, RICHMOND CALIFORNIA 94801 (CONTRA COSTA) .0314398 .0059362 .0373760
2 MARTINEZ REFINING CO LLC.3485 PACHECO BLVD, MARTINEZ CALIFORNIA 94553 (CONTRA COSTA) .0014008 .0148035 .0162043
3 PHILLIPS 66 RODEO RENEWABLE ENERGY COMPLEX.1380 SAN PABLO AVE, RODEO CALIFORNIA 94572 (CONTRA COSTA) .0004787 .0000000 .0004787

Back to top

View other report type:
Transfers Off-site for Further Waste Management
Quantities of TRI Chemicals in Waste (waste management)

Save this report to other formats:
Save report in comma-separated-value, CSV, format
Save report in Microsoft Excel format, XLS
Save report in Rich Text Format, RTF
Open report in PDF format

Note: Reporting year (RY) 2024 is the most recent TRI data available. Facilities reporting to TRI were required to submit their data to EPA by July 1 for the previous calendar year's activities. TRI Explorer is using the 2024 Dataset (released November 2025). This dataset includes revisions for the years 1988 to 2024 processed by EPA. Revisions submitted to EPA after this time are not reflected in TRI Explorer reports. TRI data may also be obtained through EPA Envirofacts.

Users of TRI information should be aware that TRI data reflect releases and other waste management activities of chemicals, not whether (or to what degree) the public has been exposed to those chemicals. Release estimates alone are not sufficient to determine exposure or to calculate potential adverse effects on human health and the environment. TRI data, in conjunction with other information, can be used as a starting point in evaluating exposures that may result from releases and other waste management activities which involve toxic chemicals. The determination of potential risk depends upon many factors, including the toxicity of the chemical, the fate of the chemical, and the amount and duration of human or other exposure to the chemical after it is released.

Off-site disposal or other releases include transfers sent to other TRI Facilities that reported the amount as on-site disposal or other release because not all states and/or not all industry sectors are included in this report.

For purposes of analysis, data reported as Range Code A is calculated using a value of 5 pounds, Range Code B is calculated using a value of 250 pounds and Range Code C is calculated using a value of 750 pounds.

The facility may have reported multiple NAICS codes to TRI in the current reporting year. See the facility profile report by clicking on the facility name to see a list of all NAICS codes submitted to TRI for the current reporting year.

Beginning with the 2006 reporting year, the industry classification code is the North American Industry Classification System (NAICS), which has replaced the 1997 US Standard Industrial Classification (SIC) code. The primary NAICS code as reported by the facility is now used for all analysis purposes for all reporting years 2006 and later. For reporting years prior to 2006, EPA has assigned a primary NAICS code based on the SIC codes as reported for those years for the purpose of analyzing trends.

A decimal point, or "." denotes that the facility left that particular cell blank in its Form R submission (a zero in a cell denotes either that the facility reported "0" or "NA" in its Form R submission). "NA" in a cell denotes that the facility has submitted only Form A and thus the data for release, waste transfers or quantities of TRI chemicals in waste are not applicable. By submitting a Form A the facility has certified that its total annual reportable amount is less than 500 pounds, and that the facility does not manufacture, process, or otherwise use more than 1 million pounds of the toxic chemical.

How to cite TRI Explorer. Following APA Style, 6th edition, an appropriate citation to TRI Explorer is:
United States Environmental Protection Agency. (2025). TRI Explorer (2024 Dataset (released November 2025)) [Internet database]. Retrieved from https://enviro.epa.gov/triexplorer/, (December 12, 2025).

Go to TRI Explorer Home |

Top of Page

Jump to main content.