Neighborhood Witness

PORT NECHES OPERATIONS C4 PLANT

Regulated Entity Reference Number: RN104964267
Primary Business: CHEMICAL MANUFACTURING OF 1,3 BUTADIENE & METHYL T
County: JEFFERSON
Nearest City: PORT NECHES
Nearest Zipcode: 77651
Physical Location: LOCATED AT THE NW CORNER OF THE INTX OF FM 366 AND SPUR 136
TCEQ reference

Emission Events

Tracking Number

Event began

Event ended

Duration

Total Released

392710

12/27/2022 02:00 PM

12/29/2022 09:30 PM

55.50

281.00

Contaminant	Amount Released
1,3-BUTADIENE	275.00 lbs
Methane	6.00 lbs

359483

06/02/2021 05:05 PM

06/06/2021 08:05 AM

87.00

4.42

Contaminant	Amount Released
1,3-BUTADIENE	0.10 lbs
Vinyl cyclohexene	4.32 lbs

354280

04/13/2021 01:33 PM

04/13/2021 02:14 PM

0.68

139.45

Contaminant	Amount Released
1,2 Butadiene	0.36 lbs
1,3-BUTADIENE	84.05 lbs
1-Butene	15.67 lbs
Butane, N-	15.33 lbs
Cis-2-butene	9.95 lbs
Ethane	0.66 lbs
Isobutane	1.31 lbs
Isobutylene	2.34 lbs
Methyl Acetylene	2.09 lbs
Pentane, N-	0.45 lbs
Propane	0.10 lbs
Propylene (Propene)	0.42 lbs
Trans-2-butene	4.40 lbs
Vinyl acetylene	2.32 lbs

353873

04/06/2021 08:31 AM

04/06/2021 09:22 AM

0.85

77.94

Contaminant	Amount Released
1,2 Butadiene	0.20 lbs
1,3-BUTADIENE	46.99 lbs
1-Butene	8.76 lbs
Butane, N-	8.57 lbs
Cis-2-butene	5.56 lbs
Ethane	0.37 lbs
Isobutane	0.73 lbs
Isobutylene	1.31 lbs
Methyl Acetylene	1.17 lbs
Pentane, N-	0.25 lbs
Propane	0.05 lbs
Propylene (Propene)	0.23 lbs
Trans-2-butene	2.46 lbs
Vinyl acetylene	1.29 lbs

325683

09/27/2019 01:00 AM

09/30/2019 01:00 AM

72.00

2,500.00

Contaminant	Amount Released
1,3-BUTADIENE	1,000.00 lbs
PM (unspeciated)	500.00 lbs
VOCs	1,000.00 lbs

308170

05/10/2019 12:50 AM

05/10/2019 03:30 AM

2.67

490.00

Contaminant	Amount Released
1,3-BUTADIENE	140.00 lbs
VOCs	350.00 lbs

308001

05/07/2019 11:30 AM

05/08/2019 11:30 AM

24.00

926.61

Contaminant	Amount Released
1,3-BUTADIENE	458.61 lbs
VOC	468.00 lbs

304311

03/11/2019 09:55 AM

03/11/2019 10:20 AM

0.42

514.53

Contaminant	Amount Released
1,3-BUTADIENE	210.70 lbs
Carbon Monoxide	72.20 lbs
Nitrogen oxide	14.17 lbs
VOCs	217.46 lbs

302846

02/17/2019 07:40 PM

02/17/2019 08:15 PM

0.58

548.86

Contaminant	Amount Released
1,3-BUTADIENE	154.25 lbs
VOCs	394.61 lbs

301946

01/31/2019 03:05 AM

01/31/2019 03:50 AM

0.75

1,219.01

Contaminant	Amount Released
1,3-BUTADIENE	251.99 lbs
VOC	967.02 lbs

297500

11/18/2018 10:00 PM

11/19/2018 07:30 AM

9.50

54.35

Contaminant	Amount Released
1,3-BUTADIENE	22.40 lbs
1-Butene	1.72 lbs
Butane, N-	4.38 lbs
Cis-2-butene	7.66 lbs
Ethane	3.28 lbs
Hexane	11.57 lbs
Isobutane	0.89 lbs
Isobutylene	0.95 lbs
Propane	1.24 lbs
Propylene (Propene)	0.26 lbs

292841

09/23/2018 10:15AM

09/23/2018

0.92

462.12

Contaminant	Amount Released
1,3-BUTADIENE	73.30 lbs
Carbon Monoxide	171.83 lbs
Nitrogen oxide	33.72 lbs
VOCs	183.27 lbs

291999

09/11/2018 4:00PM

09/11/2018

0.25

64.26

Contaminant	Amount Released
1,3-BUTADIENE	64.26 lbs

291251

08/29/2018

6.83

100.00

Contaminant	Amount Released
1,3-BUTADIENE	100.00 lbs

287659

07/03/2018 7:20PM

07/03/2018

0.75

16.14

Contaminant	Amount Released
1,3-BUTADIENE	4.61 lbs
VOCs	11.53 lbs

287112

06/23/2018 9:45PM

06/24/2018

3.00

75.78

Contaminant	Amount Released
1,3-BUTADIENE	43.62 lbs
CO	7.66 lbs
NOX	1.50 lbs
VOCs	23.00 lbs

286684

06/19/2018 10:15AM

06/19/2018

6.00

1,984.61

Contaminant	Amount Released
1,3-BUTADIENE	518.82 lbs
VOCs	1,465.79 lbs

286215

06/13/2018 9:45AM

06/13/2018

0.58

8.05

Contaminant	Amount Released
1,3-BUTADIENE	1.98 lbs
VOCs	6.07 lbs

285660

06/05/2018 8:15AM

06/05/2018

3.00

416.01

Contaminant	Amount Released
1,3-BUTADIENE	329.07 lbs
CO	7.66 lbs
Methyl Acetylene	54.78 lbs
NOX	1.50 lbs
VOCs	23.00 lbs

285514

06/01/2018

4.75

144.12

Contaminant	Amount Released
1,3-BUTADIENE	72.06 lbs
1-Butene	25.94 lbs
Butane, N-	10.09 lbs
Isobutylene	21.62 lbs
Trans-2-butene	14.41 lbs

284207

05/21/2018 7:28PM

05/21/2018

0.75

290.59

Contaminant	Amount Released
1,3-BUTADIENE	144.65 lbs
VOCs	145.94 lbs

284144

05/21/2018 1:30AM

05/21/2018

18.00

3,525.60

Contaminant	Amount Released
1,3-BUTADIENE	740.38 lbs
Butane	316.20 lbs
Butene	574.90 lbs
Opacity	0.00 lbs
VOCs	1,894.12 lbs

283586

05/10/2018 10:15AM

05/11/2018

14.75

198.35

Contaminant	Amount Released
1,3-BUTADIENE	97.96 lbs
VOCs	100.39 lbs

282087

04/15/2018 12:06AM

04/15/2018

0.03

53.87

Contaminant	Amount Released
1,3-BUTADIENE	53.12 lbs
VOCs	0.75 lbs

282066

04/13/2018 2:40PM

04/14/2018

18.00

9,048.91

Contaminant	Amount Released
1,3-BUTADIENE	1,830.01 lbs
Butene	1,494.25 lbs
Carbon Monoxide	1,782.83 lbs
NOX	1,510.73 lbs
Opacity	0.00 lbs
VOCs	2,431.09 lbs

280215

03/09/2018 10:30PM

03/10/2018

3.63

1,524.40

Contaminant	Amount Released
1,3-BUTADIENE	330.80 lbs
Carbon Monoxide	290.34 lbs
NOX	56.98 lbs
VOCs	846.28 lbs

280003

03/06/2018 1:00AM

03/06/2018

0.67

708.71

Contaminant	Amount Released
1,3-BUTADIENE	153.79 lbs
Carbon Monoxide	134.98 lbs
NOX	26.49 lbs
VOCs	393.45 lbs

278697

02/14/2018 6:00AM

02/16/2018

65.00

11,261.50

Contaminant	Amount Released
1,3-BUTADIENE	277.00 lbs
Carbon Monoxide	2,637.70 lbs
NOX	517.60 lbs
Opacity	0.00 lbs
VOCs	7,829.20 lbs

277293

01/26/2018 10:00PM

01/26/2018

0.33

225.00

Contaminant	Amount Released
1,3-BUTADIENE	50.00 lbs
Carbon Monoxide	40.00 lbs
NOX	10.00 lbs
VOCs	125.00 lbs

276895

01/22/2018 1:56PM

01/22/2018

0.28

354.80

Contaminant	Amount Released
1,3-BUTADIENE	109.90 lbs
Carbon Monoxide	11.50 lbs
Nitrogen oxide	58.60 lbs
VOCs	174.80 lbs

276594

01/17/2018 2:00PM

01/19/2018

36.00

5,414.70

Contaminant	Amount Released
1,3-BUTADIENE	1,521.70 lbs
Opacity	0.00 lbs
VOCs	3,893.00 lbs

270260

10/14/2017 2:40PM

10/14/2017

0.17

58.80

Contaminant	Amount Released
1,3-BUTADIENE	58.80 lbs

266466

08/29/2017 8:00PM

09/08/2017

222.00

33,987.20

Contaminant	Amount Released
1,3-BUTADIENE	9,328.70 lbs
1-Butene	712.60 lbs
Butane, N-	1,829.60 lbs
Carbon Monoxide	4,864.20 lbs
Cis-2-butene	3,194.00 lbs
Hexane, n	4,829.20 lbs
Isobutane	370.50 lbs
Isobutylene	399.30 lbs
NOX	954.60 lbs
Opacity	0.00 lbs
Pentanes	1,836.20 lbs
Propane/Propylene Mix	839.00 lbs
VOCs	4,829.30 lbs

261137

06/23/2017 1:25PM

06/23/2017

6.58

2,298.70

Contaminant	Amount Released
1,3-BUTADIENE	610.70 lbs
Butane	93.60 lbs
Carbon Monoxide	599.60 lbs
Hexane, n	22.40 lbs
Nitrogen oxide	117.70 lbs
Propane	16.60 lbs
Propylene (Propene)	21.60 lbs
VOCs	358.90 lbs
butenes	457.60 lbs

260395

06/15/2017 1:10PM

06/15/2017

2.20

579.20

Contaminant	Amount Released
1,3-BUTADIENE	176.70 lbs
Carbon Monoxide	96.20 lbs
Nitrogen oxide	18.90 lbs
VOCs	287.40 lbs

253839

03/07/2017 11:00AM

03/07/2017

0.02

528.00

Contaminant	Amount Released
1,3-BUTADIENE	264.00 lbs
VOCs	264.00 lbs

253077

02/22/2017 2:40AM

02/22/2017

13.50

337.66

Contaminant	Amount Released
1,3-BUTADIENE	50.00 lbs
Butane	5.89 lbs
Butene	11.53 lbs
Carbon Monoxide	117.20 lbs
NOX	23.00 lbs
Opacity	0.00 lbs
Pentanes	4.92 lbs
VOCs	125.12 lbs

249574

12/29/2016 4:00AM

12/29/2016

0.02

15.62

Contaminant	Amount Released
Anhydrous ammonia	15.62 lbs

247633

11/23/2016 8:00AM

11/23/2016

2.50

4,050.00

Contaminant	Amount Released
HCFC-22	4,050.00 lbs

231974

04/21/2016 3:00PM

04/21/2016

1.50

829.49

Contaminant	Amount Released
1,3-BUTADIENE	193.90 lbs
Butane	83.35 lbs
Butene	54.24 lbs
Carbon Monoxide	119.20 lbs
NOX	23.40 lbs
Opacity	0.00 lbs
VOCs	355.40 lbs

231400

04/13/2016 10:16PM

04/13/2016

0.08

73.10

Contaminant	Amount Released
1,3-BUTADIENE	72.80 lbs
Butylene	0.30 lbs

228026

02/20/2016 5:30PM

02/20/2016

0.50

148.00

Contaminant	Amount Released
1,3-BUTADIENE	0.30 lbs
Butane	65.60 lbs
Butene	81.20 lbs
C5s	0.30 lbs
Propane	0.20 lbs
Propylene (Propene)	0.40 lbs

203752

01/21/2016

0.00

Contaminant	Amount Released
Butadiene	0.00 lbs

222102

10/24/2015

10/26/2015

48.00

900.00

Contaminant	Amount Released
Chlorine	900.00 lbs

217838

07/27/2015 10:00AM

07/27/2015

0.25

8.80

Contaminant	Amount Released
1,3-BUTADIENE	8.80 lbs

193245

01/21/2014 7:30AM

01/21/2014

5.83

176.25

Contaminant	Amount Released
1,3-BUTADIENE	176.25 lbs

189666

10/17/2013 7:55AM

10/17/2013

0.33

202.00

Contaminant	Amount Released
1,3-BUTADIENE	201.00 lbs
2-Butene	1.00 lbs

189577

10/15/2013

0.75

0.00

Contaminant	Amount Released
Opacity	0.00 lbs

188548

09/21/2013

0.00

Contaminant	Amount Released
Napthalene	0.00 lbs

187443

08/29/2013

0.00

66.00

Contaminant	Amount Released
Sulfuric acid	66.00 lbs

186738

08/14/2013 3:50AM

08/14/2013

0.17

28.29

Contaminant	Amount Released
1,2 - Butadiene	0.31 lbs
1,3-BUTADIENE	8.28 lbs
1-Butene	2.68 lbs
Butane, N-	2.65 lbs
Cis-2-butene	1.15 lbs
Ethyl acetylene	0.58 lbs
Isobutane	3.22 lbs
Isobutylene	2.61 lbs
Methyl Acetylene	0.51 lbs
Propane	0.54 lbs
Propylene (Propene)	0.54 lbs
Trans-2-butene	2.20 lbs
Vinyl acetylene	3.02 lbs

184378

06/18/2013 1:30PM

06/18/2013

0.42

38.20

Contaminant	Amount Released
1,3-BUTADIENE	38.20 lbs

181808

04/17/2013 7:32PM

04/17/2013

0.42

173.97

Contaminant	Amount Released
1,3-BUTADIENE	122.00 lbs
Carbon Monoxide	44.12 lbs
Cis-2-butene	0.96 lbs
Methyl Acetylene	0.78 lbs
Nitrogen oxide	6.11 lbs

181559

04/11/2013 4:39PM

04/11/2013

1.00

1,147.64

Contaminant	Amount Released
1,3-BUTADIENE	1,123.60 lbs
C4s	6.20 lbs
VOCs	17.84 lbs

179986

03/03/2013

0.00

Contaminant	Amount Released
Sulfuric acid	0.00 lbs

177635

01/02/2013 12:05PM

01/02/2013

0.33

6,479.58

Contaminant	Amount Released
1,2 Butadiene	16.80 lbs
1,3-BUTADIENE	3,870.00 lbs
1-Butene	642.80 lbs
Benzene	18.10 lbs
Butane, N-	457.50 lbs
Cis-2-butene	218.40 lbs
Ethane	36.30 lbs
Isobutane	435.50 lbs
Isobutylene	248.20 lbs
Isopentane	16.18 lbs
Pentane, N-	107.60 lbs
Trans-2-butene	293.00 lbs
Vinyl acetylene	119.20 lbs

172232

08/12/2012 11:00PM

08/13/2012

4.50

621.28

Contaminant	Amount Released
1,3-BUTADIENE	372.10 lbs
1-Butene	66.89 lbs
Butane, N-	48.40 lbs
Cis-2-butene	42.80 lbs
Isobutane	38.31 lbs
Isobutylene	32.94 lbs
Isopentane	19.84 lbs

163267

01/02/2012 11:07PM

01/02/2012

0.18

1,073.77

Contaminant	Amount Released
1,3-BUTADIENE	651.51 lbs
1-Butene	118.56 lbs
Butane, N-	83.47 lbs
Cis-2-butene	81.99 lbs
Ethane	1.70 lbs
Isobutane	19.34 lbs
Isobutylene	83.08 lbs
Isopentane	34.12 lbs

159817

09/28/2011 8:17PM

09/28/2011

0.50

100.11

Contaminant	Amount Released
1,2 - Butadiene	0.85 lbs
1,3-BUTADIENE	22.01 lbs
1-Butene	7.09 lbs
Butane, N-	6.98 lbs
Cis-2-butene	3.06 lbs
Ethane	0.35 lbs
Ethyl acetylene	1.52 lbs
Isobutane	8.55 lbs
Isobutylene	6.92 lbs
Methane	21.57 lbs
Methyl Acetylene	1.36 lbs
Nitrogen oxide	5.52 lbs
Propane	0.25 lbs
Propylene (Propene)	0.26 lbs
Trans-2-butene	5.81 lbs
Vinyl acetylene	8.01 lbs

159066

09/11/2011 10:45AM

09/11/2011

0.53

135.56

Contaminant	Amount Released
1,3-BUTADIENE	96.40 lbs
Carbon Monoxide	34.20 lbs
Cis-2-butene	0.26 lbs
Nitrogen oxide	4.70 lbs

152188

03/20/2011 12:30AM

03/20/2011

0.08

200.00

Contaminant	Amount Released
1,3-BUTADIENE	200.00 lbs

145443

09/28/2010 1:52PM

09/28/2010

0.87

60.64

Contaminant	Amount Released
1,3-BUTADIENE	57.81 lbs
Nitrogen oxide	2.83 lbs

144724

09/12/2010 4:10PM

09/13/2010

14.00

400.00

Contaminant	Amount Released
1,3-BUTADIENE	300.00 lbs
1-Butene	100.00 lbs

143902

08/23/2010 5:15PM

08/23/2010

0.17

238.64

Contaminant	Amount Released
1,2 - Butadiene	2.21 lbs
1,3-BUTADIENE	59.97 lbs
1-Butene	19.42 lbs
Butane, N-	19.17 lbs
Cis-2-butene	8.36 lbs
Ethyl acetylene	4.18 lbs
Isobutane	23.35 lbs
Isobutylene	18.92 lbs
Methyl Acetylene	3.69 lbs
Propylene (Propene)	3.93 lbs
Trans-2-butene	15.97 lbs
VOCs	37.60 lbs
Vinyl acetylene	21.87 lbs

142945

07/29/2010 8:30PM

07/29/2010

0.08

119.45

Contaminant	Amount Released
1,2 Butadiene	1.11 lbs
1,3-BUTADIENE	29.98 lbs
1-Butene	9.71 lbs
Butane, N-	9.58 lbs
Cis-2-butene	4.18 lbs
Ethyl acetylene	2.09 lbs
Isobutane	11.67 lbs
Isobutylene	9.46 lbs
Methyl Acetylene	1.84 lbs
Propane	1.97 lbs
Propylene (Propene)	1.97 lbs
Trans-2-butene	7.99 lbs
VOCs	16.96 lbs
Vinyl acetylene	10.94 lbs

139462

05/08/2010 6:48AM

05/08/2010

2.00

45.83

Contaminant	Amount Released
1,3-BUTADIENE	43.78 lbs
Nitrogen oxide	2.05 lbs

149286

01/10/2010 10:03AM

01/10/2010

0.75

262.85

Contaminant	Amount Released
1,3-BUTADIENE	112.53 lbs
1-Butene	30.69 lbs
Butane, N-	75.45 lbs
C4s	3.94 lbs
Cis-2-butene	16.48 lbs
Isobutane	9.08 lbs
Isobutylene	14.68 lbs

130448

10/07/2009 10:03AM

10/07/2009

11.00

1,702.15

Contaminant	Amount Released
1,2 - Butadiene	13.36 lbs
1,3-BUTADIENE	346.32 lbs
1-Butene	111.59 lbs
Butane, N-	109.78 lbs
Carbon Monoxide	500.88 lbs
Cis-2-butene	48.22 lbs
Ethyl acetylene	23.84 lbs
Isobutane	134.52 lbs
Isobutylene	108.89 lbs
Methyl Acetylene	21.39 lbs
Nitrogen oxide	65.88 lbs
Trans-2-butene	91.39 lbs
Vinyl acetylene	126.09 lbs

129911

09/25/2009 10:15AM

09/26/2009

24.00

410.36

Contaminant	Amount Released
1,3-BUTADIENE	134.47 lbs
1-Butene	41.83 lbs
Butane, N-	26.15 lbs
Cis-2-butene	2.47 lbs
Ethane	134.47 lbs
Isobutane	23.16 lbs
Isobutylene	13.45 lbs
Propane	26.89 lbs
Propylene (Propene)	2.99 lbs
Trans-2-butene	4.48 lbs

129286

09/11/2009 2:50AM

09/11/2009

0.83

207.41

Contaminant	Amount Released
1,2 - Butadiene	0.09 lbs
1,3-BUTADIENE	0.22 lbs
1-Butene	28.23 lbs
Butane, N-	29.55 lbs
Cis-2-butene	22.27 lbs
Isobutane	10.18 lbs
Isobutylene	73.84 lbs
Propane	0.81 lbs
Propylene (Propene)	1.28 lbs
Trans-2-butene	40.94 lbs

127522

07/31/2009 7:14AM

07/31/2009

1.00

0.00

Contaminant	Amount Released
Opacity	0.00 lbs

126850

07/15/2009 9:45AM

07/15/2009

0.25

483.39

Contaminant	Amount Released
1,2 - Butadiene	1.30 lbs
1,3-BUTADIENE	390.12 lbs
Methyl Acetylene	91.97 lbs

126832

07/15/2009 4:20AM

07/15/2009

0.02

1,142.20

Contaminant	Amount Released
1,3-BUTADIENE	0.80 lbs
1-Butene	30.50 lbs
Butane, N-	432.50 lbs
Cis-2-butene	168.00 lbs
Isobutane	70.30 lbs
Isobutylene	127.10 lbs
Pentane	9.00 lbs
Trans-2-butene	304.00 lbs

126687

07/12/2009 10:33AM

07/12/2009

4.00

1,215.73

Contaminant	Amount Released
1,3-BUTADIENE	651.35 lbs
1-Butene	132.52 lbs
Butane	161.35 lbs
Cis-2-butene	81.87 lbs
Ethane	2.31 lbs
Isobutane	32.09 lbs
Isobutylene	111.87 lbs
Isopentane	42.37 lbs

124353

05/19/2009 8:00AM

05/21/2009

54.00

0.00

Contaminant	Amount Released

121284

03/20/2009 11:00AM

03/20/2009

7.00

0.00

Contaminant	Amount Released
Carbon Monoxide	0.00 lbs
Nitrogen oxide	0.00 lbs

120623

03/02/2009 7:00AM

03/02/2009

0.02

0.00

Contaminant	Amount Released
1,3-BUTADIENE	0.00 lbs
Carbon Monoxide	0.00 lbs
Nitrogen oxide	0.00 lbs