Data-driven insights for local properties

📊 Environmental Assessment Report

This comprehensive report analyzes both flood risk and industrial pollution exposure for this property. The assessment combines multiple data sources including USGS elevation, FEMA flood zones, historical storm modeling, and EPA Toxic Release Inventory records.

🌊 Part 1: Flood Risk Analysis

Property Overview

This section shows the fundamental characteristics of the property, including its elevation above sea level, FEMA flood zone designation, and our calculated overall flood risk rating based on historical data and topographic analysis.

Address
410 INDEPENDENCE PKY S LA PORTE 77571
Elevation
29.19 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very Low
Risk based on FEMA zone and simulation.

Risk Assessment Outputs

These detailed metrics show the technical outputs from our flood risk model. They include predicted water depths at the property during a 5000-year flood event and estimated flood damage based on USACE methodology.

Risk Rating
Very Low
Flood Depth
0 ft ±0.5 ft
No flooding at current water level.
Water Surface Elevation (WSE)
N/A
Water surface elevation data not available.
Area Inundated
N/A
Data not available
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage Estimate (HCAD Valuation)
$0
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
Analysis Method
COG Bathtub Model
Raster-based flood inundation query

Flood Simulation

This simulation shows whether the property would flood based on a 5000-year flood event with 3m (9.84ft) water level. Use the interactive tool to explore different scenarios.

✅ Property Would Be Safe
Safety Margin: 19.19 feet
Severity: Safe

Adjust Flood Simulation

The analysis above uses default settings (5000-year flood, 3m/9.84ft water level). To explore different flood scenarios with interactive maps, return to the main tool:

Open Interactive Analysis Tool

Flood Risk Recommendations

Based on the property's flood risk profile, here are specific action items to consider.

  • FEMA Zone X (minimal hazard) - flood insurance available at preferred rates.
  • Review the interactive flood simulator to understand how different rainfall events could affect this property.
  • Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
Very High
Higher pollution than 94% of Houston homes
This ranking compares pollution levels within 2 miles of this property against 10,000 randomly sampled Houston metro properties. Lower percentiles indicate higher pollution exposure.
Industrial Pollution Nearby (Last 10 Years)
21.03 million lbs
Extremely High
3223.8x more than typical Houston property
≈ 1.1K dump trucks of chemicals within 2 miles
Total chemical releases from all industrial facilities within a 2-mile radius over the past decade (2014–2024). Data from EPA's Toxic Release Inventory tracking air, water, and land discharges.
💨 Air Pollution (Last 10 Years)
13.09 million lbs
Extremely High
2713.4x more than typical Houston property
Chemicals released into the air from nearby facilities over 10 years. Includes both fugitive emissions (leaks, evaporation) and stack emissions (smokestacks, vents). May affect local air quality.
💧 Water Pollution (Last 10 Years)
7.95 million lbs
Extremely High
Most Houston properties have none nearby
Chemical discharges to surface water (bayous, streams, drainage) from industrial facilities within 2 miles over the past decade. May impact local waterways and drainage systems.

❤️ Why It Matters

High chemical activity nearby can indicate industrial zones, truck traffic, or potential odor and noise issues. These factors may affect air quality, long-term property desirability, and neighborhood character. This data helps you understand the industrial footprint around your property.

🏙️ Houston Metro Benchmarks

Comparison with typical Houston properties (based on 10,000 randomly sampled homes). All measurements are for chemicals released within a 2-mile radius.

PeriodTotalAirWater
Typical Houston Property (2014-2024)6,524 lbs4,822 lbs0 lbs
This Property (2014-2024)21,033,161 lbs13,085,131 lbs7,948,030 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)5,254,054 lbs1,118,413 lbs707,785 lbs

📊 How This Property Compares to Houston Metro

Based on a random sample of 10,000 Houston properties, this chart shows the distribution of pollution levels across the metro area. The highlighted bar indicates where this property falls compared to other homes. Lower percentiles mean higher pollution exposure.

0-9thMost Polluted
9.9%
10-19th
10.1%
20-29th
9.9%
30-39th
10.1%
40-49th
9.7%
50-59th
10.2%
60-69th
6%
70-79th
5.8%
80-89th
4.3%
90-100thLowest Pollution
34.2%
Higher pollution than 94% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

Top chemicals released near this property (past 10 years):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ethylene, Propylene, Zinc compounds, Methanol

View the full list of 235 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (235 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5119 lbs7,119,876 lbs7,119,886 lbs
2Ethylene74-85-13,081,127 lbs0 lbs3,081,127 lbs
3Propylene115-07-12,926,463 lbs0 lbs2,926,463 lbs
4Zinc compoundsN9827,746 lbs43,022 lbs2,673,883 lbs
5Methanol67-56-1922,862 lbs691,064 lbs1,613,926 lbs
6Ammonia7664-41-71,036,090 lbs30,921 lbs1,488,491 lbs
7Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090312 lbs423 lbs1,288,417 lbs
8Aluminum oxide (fibrous forms)1344-28-113 lbs0 lbs1,108,293 lbs
9Vinyl acetate108-05-41,065,140 lbs5,684 lbs1,070,824 lbs
10Lead And Lead CompoundsN4201,132 lbs1,204 lbs1,064,701 lbs
11Lead compoundsN420232 lbs88 lbs751,347 lbs
12Copper And Copper CompoundsN1005 lbs9,570 lbs717,114 lbs
13Methyl methacrylate80-62-6656,901 lbs0 lbs656,901 lbs
14Chromium compounds (except for chromite ore mined in the Transvaal Region)N0908 lbs81 lbs638,329 lbs
15n-Hexane110-54-3617,914 lbs0 lbs617,914 lbs
16Selenium And Selenium CompoundsN72529 lbs957 lbs467,876 lbs
17Copper compoundsN1005 lbs14,687 lbs437,081 lbs
18Lead7439-92-18 lbs78 lbs436,135 lbs
19Barium And Barium CompoundsN04079 lbs99 lbs420,803 lbs
20Silver And Silver CompoundsN74034 lbs486 lbs388,530 lbs
21Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0387,234 lbs0 lbs387,234 lbs
22Aluminum (fume or dust)7429-90-51,426 lbs0 lbs333,760 lbs
23Manganese compoundsN45030 lbs0 lbs324,029 lbs
241,2-Dichloroethane107-06-2302,990 lbs59 lbs303,048 lbs
25Hydrogen cyanide74-90-8287,023 lbs1,846 lbs288,869 lbs
26n-Butyl alcohol71-36-3196,522 lbs0 lbs284,764 lbs
27Mercury compoundsN4581,288 lbs0 lbs251,836 lbs
28Vinyl chloride75-01-4247,583 lbs79 lbs247,662 lbs
29Butyl acrylate141-32-2246,390 lbs0 lbs246,390 lbs
30Chromium7440-47-33 lbs51 lbs225,153 lbs
31Barium7440-39-32 lbs0 lbs213,719 lbs
32Cadmium7440-43-916 lbs316 lbs212,173 lbs
33Nickel And Nickel CompoundsN49597 lbs216 lbs190,022 lbs
34Selenium compoundsN7251 lbs0 lbs180,047 lbs
35Nickel compoundsN4953 lbs0 lbs178,941 lbs
36Mercury And Mercury CompoundsN458623 lbs1 lbs171,850 lbs
37Silver7440-22-48 lbs89 lbs156,682 lbs
38Nickel7440-02-050 lbs149 lbs148,913 lbs
39Acrylic acid79-10-7128,006 lbs0 lbs128,006 lbs
40Acetaldehyde75-07-0104,156 lbs1,275 lbs105,431 lbs
41Antimony compoundsN0107 lbs0 lbs103,400 lbs
42Arsenic And Arsenic CompoundsN02013 lbs139 lbs85,173 lbs
43Arsenic7440-38-221 lbs308 lbs80,284 lbs
44Chlorine7782-50-575,579 lbs3,421 lbs79,000 lbs
45Cobalt compoundsN0961 lbs0 lbs77,363 lbs
46Titanium tetrachloride7550-45-06 lbs0 lbs70,875 lbs
471,3-Butadiene106-99-070,137 lbs45 lbs70,182 lbs
48Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs1,936 lbs66,779 lbs
49Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-965,729 lbs0 lbs65,729 lbs
50Certain glycol ethersN23064,631 lbs0 lbs64,631 lbs
51Selenium7782-49-21 lbs192 lbs62,376 lbs
52Asbestos (friable)1332-21-41 lbs0 lbs59,423 lbs
53Ethylene glycol107-21-149,428 lbs9,387 lbs58,815 lbs
54Copper7440-50-80 lbs49 lbs57,714 lbs
55Arsenic compoundsN0207 lbs0 lbs54,039 lbs
56Propylene oxide75-56-953,802 lbs0 lbs53,802 lbs
57Dicyclopentadiene77-73-649,241 lbs26 lbs49,267 lbs
58Formaldehyde50-00-047,426 lbs0 lbs47,426 lbs
59Xylene (mixed isomers)1330-20-743,821 lbs0 lbs43,821 lbs
60Thallium compoundsN76015 lbs0 lbs40,288 lbs
61Cyanide compoundsN1061 lbs9,834 lbs39,319 lbs
62Methyl iodide74-88-437,993 lbs0 lbs37,993 lbs
63Toluene108-88-337,819 lbs74 lbs37,893 lbs
64Zinc (fume or dust)7440-66-6672 lbs0 lbs36,101 lbs
65Ethyl acrylate140-88-536,084 lbs0 lbs36,084 lbs
66Manganese And Manganese CompoundsN450779 lbs0 lbs29,251 lbs
67Benzene71-43-222,209 lbs42 lbs22,250 lbs
68Silver compoundsN7400 lbs0 lbs19,617 lbs
69Mercury7439-97-6163 lbs0 lbs18,764 lbs
70Maleic anhydride108-31-617,835 lbs0 lbs17,835 lbs
71Hydrogen sulfide7783-06-417,437 lbs0 lbs17,437 lbs
72Chlorobenzene108-90-716,300 lbs0 lbs16,300 lbs
73Chloroethane75-00-314,816 lbs0 lbs14,816 lbs
74Cyclohexane110-82-714,402 lbs0 lbs14,402 lbs
75Boron trifluoride7637-07-214,201 lbs0 lbs14,201 lbs
76Methyl isobutyl ketone108-10-113,403 lbs0 lbs13,403 lbs
77Chloroform67-66-312,358 lbs51 lbs12,409 lbs
78Antimony7440-36-06 lbs3 lbs11,670 lbs
79Antimony And Antimony CompoundsN010683 lbs0 lbs11,438 lbs
80Cadmium compoundsN0780 lbs0 lbs9,750 lbs
81Trade SecretTRD SECRT9,705 lbs0 lbs9,705 lbs
82N,N-Dimethylformamide68-12-29,035 lbs0 lbs9,035 lbs
832-Methyllactonitrile75-86-58,412 lbs0 lbs8,412 lbs
84Carbon tetrachloride56-23-58,024 lbs0 lbs8,024 lbs
85Manganese7439-96-50 lbs0 lbs7,325 lbs
86Acrylonitrile107-13-17,023 lbs0 lbs7,023 lbs
87Isoprene78-79-55,949 lbs0 lbs5,949 lbs
88Dichloromethane75-09-25,585 lbs0 lbs5,585 lbs
891,1,2-Trichloroethane79-00-54,497 lbs0 lbs4,497 lbs
90DiisocyanatesN1204,310 lbs0 lbs4,310 lbs
91Molybdenum trioxide1313-27-50 lbs0 lbs4,062 lbs
92Methyl tert-butyl ether1634-04-43,935 lbs0 lbs3,935 lbs
93Cobalt7440-48-40 lbs0 lbs3,228 lbs
94Formic acid64-18-62,515 lbs0 lbs2,515 lbs
95Vanadium compoundsN7700 lbs0 lbs2,459 lbs
96Ethylidene dichloride75-34-32,234 lbs0 lbs2,234 lbs
97Styrene100-42-52,103 lbs0 lbs2,103 lbs
98Di(2-ethylhexyl) phthalate117-81-72,021 lbs0 lbs2,021 lbs
991,2-Dichloroethylene540-59-01,504 lbs0 lbs1,504 lbs
100Nonylphenol EthoxylatesN5351,381 lbs0 lbs1,381 lbs
101Bis(2-chloroethyl) ether111-44-4952 lbs0 lbs952 lbs
102Vanadium (except when contained in an alloy)7440-62-20 lbs1 lbs851 lbs
103Acetonitrile75-05-8849 lbs0 lbs849 lbs
104Trichloroethylene79-01-6807 lbs0 lbs807 lbs
105Tetrachloroethylene127-18-4790 lbs0 lbs790 lbs
106Vinylidene chloride75-35-4743 lbs0 lbs743 lbs
107Ethylbenzene100-41-4628 lbs32 lbs660 lbs
108Pentachloroethane76-01-7582 lbs0 lbs582 lbs
109Naphthalene91-20-3538 lbs33 lbs571 lbs
1101,1,2,2-Tetrachloroethane79-34-5525 lbs0 lbs525 lbs
111Chloromethane74-87-3455 lbs0 lbs455 lbs
112Dimethylamine124-40-3417 lbs0 lbs417 lbs
113Hydroquinone123-31-9394 lbs0 lbs394 lbs
114Acrolein107-02-8326 lbs0 lbs326 lbs
115Nitric acid7697-37-2311 lbs0 lbs311 lbs
116Creosote8001-58-9192 lbs0 lbs192 lbs
117NonylphenolN530161 lbs13 lbs174 lbs
118Hexachlorocyclopentadiene77-47-4110 lbs33 lbs143 lbs
119Triethylamine121-44-8114 lbs0 lbs114 lbs
120Beryllium7440-41-70 lbs0 lbs108 lbs
121Hexachloroethane67-72-1103 lbs0 lbs103 lbs
122Aniline62-53-3102 lbs0 lbs102 lbs
123tert-Butyl alcohol75-65-079 lbs0 lbs79 lbs
124sec-Butyl alcohol78-92-268 lbs0 lbs68 lbs
125Beryllium compoundsN0500 lbs0 lbs68 lbs
126Polychlorinated biphenyls1336-36-368 lbs0 lbs68 lbs
127Chloroprene126-99-865 lbs0 lbs65 lbs
1281,1,1-Trichloroethane71-55-664 lbs0 lbs64 lbs
129Isopropyl alcohol (only persons who manufacture by the strong acid process are subject, no supplier notification)67-63-063 lbs0 lbs63 lbs
130Methyl acrylate96-33-362 lbs0 lbs62 lbs
131Dioxin and dioxin-like compoundsN1501 lbs60 lbs61 lbs
132Diethanolamine111-42-259 lbs0 lbs59 lbs
1331,4-Dichlorobenzene106-46-744 lbs0 lbs44 lbs
134Epichlorohydrin106-89-844 lbs0 lbs44 lbs
135Hexachlorobenzene118-74-122 lbs14 lbs36 lbs
136Diphenylamine122-39-420 lbs14 lbs35 lbs
137Pyridine110-86-133 lbs0 lbs33 lbs
138Trichlorofluoromethane (CFC-11)75-69-432 lbs0 lbs32 lbs
1391,2,4-Trimethylbenzene95-63-629 lbs0 lbs29 lbs
140Ethylene oxide75-21-829 lbs0 lbs29 lbs
1411,2-Dichlorobenzene95-50-129 lbs0 lbs29 lbs
142Nitrobenzene98-95-323 lbs0 lbs23 lbs
143Phenol108-95-220 lbs0 lbs20 lbs
144Allyl chloride107-05-120 lbs0 lbs20 lbs
145Butyraldehyde123-72-819 lbs0 lbs19 lbs
146Biphenyl92-52-417 lbs0 lbs17 lbs
147Triallate2303-17-513 lbs0 lbs13 lbs
148N-Methyl-2-pyrrolidone872-50-412 lbs0 lbs12 lbs
149Diaminotoluene (mixed isomers)25376-45-810 lbs0 lbs10 lbs
150Carbon disulfide75-15-010 lbs0 lbs10 lbs
151Polycyclic aromatic compoundsN59010 lbs0 lbs10 lbs
1524,4'-Isopropylidenediphenol80-05-79 lbs0 lbs9 lbs
153Lindane58-89-99 lbs0 lbs9 lbs
154Urethane51-79-69 lbs0 lbs9 lbs
1551,2-Dichloropropane78-87-58 lbs0 lbs8 lbs
1562,4-D94-75-78 lbs0 lbs8 lbs
157Toluene-2,4-diisocyanate584-84-98 lbs0 lbs8 lbs
158trans-1,4-Dichloro-2-butene110-57-67 lbs0 lbs7 lbs
1591,4-Dioxane123-91-17 lbs0 lbs7 lbs
160o-Toluidine95-53-47 lbs0 lbs7 lbs
161Phthalic anhydride85-44-96 lbs0 lbs6 lbs
162Dibutyl phthalate84-74-26 lbs0 lbs6 lbs
1631,2,3-Trichloropropane96-18-46 lbs0 lbs6 lbs
164Thiram137-26-86 lbs0 lbs6 lbs
1654,4'-Methylenedianiline101-77-96 lbs0 lbs6 lbs
166Allyl alcohol107-18-65 lbs0 lbs5 lbs
167o-Cresol95-48-75 lbs0 lbs5 lbs
168Methoxychlor72-43-55 lbs0 lbs5 lbs
169Acetophenone98-86-25 lbs0 lbs5 lbs
170Dichlorobenzene (mixed isomers)25321-22-64 lbs0 lbs4 lbs
171Cumene98-82-84 lbs0 lbs4 lbs
172Fluorouracil51-21-84 lbs0 lbs4 lbs
173Diazinon333-41-54 lbs0 lbs4 lbs
174Cresol (mixed isomers)1319-77-34 lbs0 lbs4 lbs
175Malathion121-75-54 lbs0 lbs4 lbs
1762-Methoxyethanol109-86-44 lbs0 lbs4 lbs
177Toxaphene8001-35-24 lbs0 lbs4 lbs
178Ethylene thiourea96-45-74 lbs0 lbs4 lbs
1792-Ethoxyethanol110-80-54 lbs0 lbs4 lbs
1801,3-Phenylenediamine108-45-23 lbs0 lbs3 lbs
181Hexachlorophene70-30-43 lbs0 lbs3 lbs
182ChlorophenolsN0843 lbs0 lbs3 lbs
183Propionaldehyde123-38-63 lbs0 lbs3 lbs
184Chlordane57-74-93 lbs0 lbs3 lbs
185Dibenzofuran132-64-93 lbs0 lbs3 lbs
1862-Methylpyridine109-06-82 lbs0 lbs2 lbs
1871,2,4-Trichlorobenzene120-82-12 lbs0 lbs2 lbs
188Warfarin and saltsN8742 lbs0 lbs2 lbs
189Nicotine and saltsN5032 lbs0 lbs2 lbs
190Hexachloro-1,3-butadiene87-68-32 lbs0 lbs2 lbs
191Bifenthrin82657-04-32 lbs0 lbs2 lbs
192Dimethyl phthalate131-11-32 lbs0 lbs2 lbs
193Pentachlorophenol87-86-52 lbs0 lbs2 lbs
194Linuron330-55-22 lbs0 lbs2 lbs
195Hexazinone51235-04-22 lbs0 lbs2 lbs
196Heptachlor76-44-81 lbs0 lbs1 lbs
197Benzo[g,h,i]perylene191-24-21 lbs1 lbs1 lbs
198Paraldehyde123-63-71 lbs0 lbs1 lbs
199Pentachlorobenzene608-93-51 lbs0 lbs1 lbs
200Aldrin309-00-21 lbs0 lbs1 lbs
201p-Cresol106-44-51 lbs0 lbs1 lbs
2022-Nitropropane79-46-91 lbs0 lbs1 lbs
203Permethrin52645-53-11 lbs0 lbs1 lbs
204Phenanthrene85-01-81 lbs0 lbs1 lbs
205Pronamide23950-58-51 lbs0 lbs1 lbs
2062,4-Dinitrotoluene121-14-21 lbs0 lbs1 lbs
2072-Propenoic acid, butyl ester, telomer with 2-[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl 2-propenoate, 2-[methyl[(nonafluorobutyl)sulfonyl]amino]ethyl 2-propenoate, α-(2-methyl-1-oxo-2-propenyl)-ω-hydroxypoly(oxy-1,4-butanediyl), α-(2-methyl-1-oxo-2-propenyl)-ω-[(2-methyl-1-oxo-2-propenyl)oxy]poly(oxy-1,4-butanediyl), 2-[methyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 2-propenoate, 2-[methyl[(tridecafluorohexyl)sulfonyl]amino]ethyl 2-propenoate, 2-[methyl[(undecafluoropentyl)sulfonyl]amino]ethyl 2-propenoate and 1-octanethiol68227-96-31 lbs0 lbs1 lbs
208Methyl parathion298-00-01 lbs0 lbs1 lbs
209Isodrin465-73-61 lbs0 lbs1 lbs
210Nitroglycerin55-63-01 lbs0 lbs1 lbs
211Carbaryl63-25-21 lbs0 lbs1 lbs
212Dichlorvos62-73-71 lbs0 lbs1 lbs
213m-Cresol108-39-41 lbs0 lbs1 lbs
214m-Xylene108-38-31 lbs0 lbs1 lbs
215Diallate2303-16-41 lbs0 lbs1 lbs
216Pendimethalin40487-42-11 lbs0 lbs1 lbs
217Polychlorinated alkanes (C10-C13)N5831 lbs0 lbs1 lbs
2181,2-Dibromoethane106-93-41 lbs0 lbs1 lbs
2191,2-Phenylenediamine95-54-51 lbs0 lbs1 lbs
2201,1,1,2-Tetrachloroethane630-20-61 lbs0 lbs1 lbs
221N-Nitrosodiphenylamine86-30-61 lbs0 lbs1 lbs
222Sodium nitrite7632-00-01 lbs0 lbs1 lbs
223Anthracene120-12-71 lbs0 lbs1 lbs
224Mecoprop93-65-21 lbs0 lbs1 lbs
225Toluene diisocyanate (mixed isomers)26471-62-51 lbs0 lbs1 lbs
226Isobutyraldehyde78-84-21 lbs0 lbs1 lbs
227Benomyl17804-35-21 lbs0 lbs1 lbs
228Bendiocarb22781-23-31 lbs0 lbs1 lbs
229Aldicarb116-06-31 lbs0 lbs1 lbs
230Captan133-06-21 lbs0 lbs1 lbs
2312,4-Dimethylphenol105-67-91 lbs0 lbs1 lbs
232Acrylamide79-06-11 lbs0 lbs1 lbs
233Thiophanate-methyl23564-05-81 lbs0 lbs1 lbs
234Tetrabromobisphenol A79-94-71 lbs0 lbs1 lbs
235Trifluralin1582-09-81 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Zinc compounds, Methyl methacrylate, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)

View the full list of 141 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (141 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs629,081 lbs638,792 lbs
2Ammonia7664-41-798,317 lbs2,056 lbs570,047 lbs
3Zinc compoundsN982434 lbs1,694 lbs547,712 lbs
4Methyl methacrylate80-62-660,017 lbs0 lbs415,700 lbs
5Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09049 lbs66 lbs341,543 lbs
6Ethylene74-85-1302,795 lbs0 lbs302,795 lbs
7Aluminum oxide (fibrous forms)1344-28-10 lbs0 lbs270,663 lbs
8Propylene115-07-1264,678 lbs0 lbs264,678 lbs
9Lead And Lead CompoundsN420178 lbs144 lbs239,635 lbs
10Methanol67-56-155,775 lbs69,184 lbs198,452 lbs
11Copper And Copper CompoundsN1002 lbs4,129 lbs172,600 lbs
12Maleic anhydride108-31-62,270 lbs0 lbs135,590 lbs
13Silver And Silver CompoundsN7407 lbs92 lbs107,122 lbs
14Manganese compoundsN4501 lbs0 lbs95,992 lbs
15Aluminum (fume or dust)7429-90-526 lbs0 lbs88,438 lbs
16Vinyl acetate108-05-482,469 lbs410 lbs83,316 lbs
17Butyl acrylate141-32-224,361 lbs0 lbs81,487 lbs
18Selenium And Selenium CompoundsN7254 lbs100 lbs75,707 lbs
19n-Hexane110-54-365,515 lbs0 lbs67,445 lbs
20Barium And Barium CompoundsN04012 lbs0 lbs65,889 lbs
21n-Butyl alcohol71-36-330,571 lbs0 lbs65,412 lbs
22Nickel And Nickel CompoundsN49523 lbs69 lbs60,437 lbs
23Arsenic And Arsenic CompoundsN0206 lbs66 lbs30,307 lbs
24Cadmium7440-43-92 lbs43 lbs28,414 lbs
25Antimony compoundsN0100 lbs0 lbs26,943 lbs
26DiisocyanatesN1201,845 lbs0 lbs24,098 lbs
27Toluene108-88-33,576 lbs11 lbs22,498 lbs
281,2-Dichloroethane107-06-220,890 lbs15 lbs21,267 lbs
29Hydrogen cyanide74-90-812,157 lbs0 lbs17,407 lbs
30Vinyl chloride75-01-415,914 lbs5 lbs15,937 lbs
31Zinc (fume or dust)7440-66-6215 lbs0 lbs12,790 lbs
32Cobalt compoundsN0960 lbs0 lbs12,049 lbs
33Thallium compoundsN7600 lbs0 lbs11,354 lbs
34Acrylic acid79-10-79,951 lbs0 lbs9,951 lbs
35Cresol (mixed isomers)1319-77-30 lbs0 lbs9,186 lbs
36Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-07,335 lbs0 lbs7,340 lbs
37Methyl isobutyl ketone108-10-12,474 lbs0 lbs6,926 lbs
38Acetaldehyde75-07-05,933 lbs161 lbs6,175 lbs
39Chlorine7782-50-55,832 lbs0 lbs5,832 lbs
40Phenol108-95-20 lbs0 lbs5,752 lbs
41Trade SecretTRD SECRT5,677 lbs0 lbs5,677 lbs
42Ethyl acrylate140-88-53,769 lbs0 lbs5,572 lbs
43Chlorobenzene108-90-717 lbs0 lbs5,467 lbs
44Formaldehyde50-00-05,252 lbs0 lbs5,276 lbs
45Xylene (mixed isomers)1330-20-71,153 lbs0 lbs5,193 lbs
46Pentachlorophenol87-86-50 lbs0 lbs4,592 lbs
47Dicyclopentadiene77-73-64,280 lbs5 lbs4,285 lbs
48Benzene71-43-21,769 lbs3 lbs4,038 lbs
491,3-Butadiene106-99-03,952 lbs9 lbs3,961 lbs
50Polycyclic aromatic compoundsN5903 lbs0 lbs3,627 lbs
51Certain glycol ethersN2303,027 lbs0 lbs3,249 lbs
52Mercury And Mercury CompoundsN458101 lbs1 lbs2,777 lbs
53Ethylbenzene100-41-4362 lbs2 lbs2,763 lbs
54Cyclohexane110-82-71,729 lbs0 lbs2,624 lbs
55Dioxin and dioxin-like compoundsN1500 lbs7 lbs2,327 lbs
56Toluene-2,4-diisocyanate584-84-90 lbs0 lbs2,095 lbs
57Ethylene glycol107-21-11,649 lbs0 lbs1,973 lbs
58Toluene diisocyanate (mixed isomers)26471-62-50 lbs0 lbs1,873 lbs
59Acrylonitrile107-13-11,776 lbs0 lbs1,786 lbs
602-Ethoxyethanol110-80-50 lbs0 lbs1,753 lbs
61Methyl iodide74-88-41,600 lbs0 lbs1,600 lbs
62Chloroethane75-00-31,527 lbs0 lbs1,527 lbs
63Boron trifluoride7637-07-21,192 lbs0 lbs1,192 lbs
64Chloroform67-66-3847 lbs9 lbs1,166 lbs
65Dichloromethane75-09-289 lbs0 lbs1,146 lbs
662-Methyllactonitrile75-86-5998 lbs0 lbs998 lbs
67NonylphenolN53012 lbs0 lbs848 lbs
681,4-Dichlorobenzene106-46-72 lbs0 lbs842 lbs
69Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-90 lbs0 lbs795 lbs
70Styrene100-42-5166 lbs0 lbs737 lbs
71Carbon tetrachloride56-23-5580 lbs0 lbs634 lbs
72Isoprene78-79-5583 lbs0 lbs583 lbs
73N,N-Dimethylformamide68-12-2570 lbs0 lbs572 lbs
742,4-D94-75-70 lbs0 lbs510 lbs
75Lead7439-92-10 lbs5 lbs495 lbs
76Methoxychlor72-43-50 lbs0 lbs460 lbs
77Cyanide compoundsN1060 lbs396 lbs458 lbs
781,2,4-Trimethylbenzene95-63-60 lbs0 lbs400 lbs
791,1,2-Trichloroethane79-00-5396 lbs0 lbs398 lbs
80Formic acid64-18-6294 lbs0 lbs294 lbs
814,4'-Methylenedianiline101-77-90 lbs0 lbs291 lbs
82Naphthalene91-20-3270 lbs18 lbs288 lbs
83Tetrachloroethylene127-18-438 lbs0 lbs254 lbs
84Hydrogen sulfide7783-06-4235 lbs0 lbs235 lbs
85Pyridine110-86-11 lbs0 lbs231 lbs
86Nonylphenol EthoxylatesN5350 lbs0 lbs212 lbs
87Aniline62-53-30 lbs0 lbs201 lbs
88Nitric acid7697-37-231 lbs0 lbs197 lbs
89Trichloroethylene79-01-653 lbs0 lbs189 lbs
90Ethylidene dichloride75-34-3160 lbs0 lbs160 lbs
91Hexachloroethane67-72-19 lbs0 lbs147 lbs
92tert-Butyl alcohol75-65-01 lbs0 lbs130 lbs
93Acetonitrile75-05-840 lbs0 lbs129 lbs
941,2-Dichloroethylene540-59-0108 lbs0 lbs108 lbs
95Bis(2-chloroethyl) ether111-44-496 lbs0 lbs96 lbs
96Nitrobenzene98-95-31 lbs0 lbs93 lbs
97Hydroquinone123-31-984 lbs0 lbs84 lbs
98Vinylidene chloride75-35-451 lbs0 lbs83 lbs
99Pentachloroethane76-01-756 lbs0 lbs56 lbs
100Vanadium compoundsN7700 lbs0 lbs56 lbs
1011,1,2,2-Tetrachloroethane79-34-548 lbs0 lbs48 lbs
1021,2-Phenylenediamine95-54-50 lbs0 lbs39 lbs
103Benzo[g,h,i]perylene191-24-20 lbs0 lbs38 lbs
104Dibutyl phthalate84-74-20 lbs0 lbs36 lbs
1054,4'-Isopropylidenediphenol80-05-70 lbs0 lbs33 lbs
106Dimethylamine124-40-332 lbs0 lbs32 lbs
107Cumene98-82-80 lbs0 lbs32 lbs
108Acrolein107-02-827 lbs0 lbs27 lbs
1091,1,1-Trichloroethane71-55-61 lbs0 lbs27 lbs
110Hydrogen fluoride7664-39-30 lbs0 lbs24 lbs
111Hexachloro-1,3-butadiene87-68-30 lbs0 lbs23 lbs
112Toxaphene8001-35-20 lbs0 lbs23 lbs
113Permethrin52645-53-10 lbs0 lbs21 lbs
114Lindane58-89-90 lbs0 lbs18 lbs
115Asbestos (friable)1332-21-40 lbs0 lbs17 lbs
116Hexachlorocyclopentadiene77-47-410 lbs5 lbs15 lbs
117m-Cresol108-39-40 lbs0 lbs14 lbs
118Methyl tert-butyl ether1634-04-411 lbs0 lbs11 lbs
119Polychlorinated biphenyls1336-36-37 lbs0 lbs10 lbs
120Ethylene oxide75-21-810 lbs0 lbs10 lbs
121Hexachlorobenzene118-74-12 lbs1 lbs9 lbs
122Allyl alcohol107-18-60 lbs0 lbs9 lbs
123Trichlorofluoromethane (CFC-11)75-69-40 lbs0 lbs7 lbs
124Carbaryl63-25-20 lbs0 lbs6 lbs
125sec-Butyl alcohol78-92-25 lbs0 lbs5 lbs
126Dichlorobenzene (mixed isomers)25321-22-60 lbs0 lbs5 lbs
127Chloroprene126-99-84 lbs0 lbs4 lbs
128Epichlorohydrin106-89-80 lbs0 lbs3 lbs
129Triethylamine121-44-83 lbs0 lbs3 lbs
1301,2-Dichlorobenzene95-50-10 lbs0 lbs2 lbs
1311,4-Dioxane123-91-10 lbs0 lbs2 lbs
132Warfarin and saltsN8740 lbs0 lbs2 lbs
133Chlordane57-74-90 lbs0 lbs2 lbs
1342-Methylpyridine109-06-82 lbs0 lbs2 lbs
135Phenanthrene85-01-80 lbs0 lbs1 lbs
136Heptachlor76-44-80 lbs0 lbs1 lbs
137Propylene oxide75-56-91 lbs0 lbs1 lbs
138N-Methyl-2-pyrrolidone872-50-41 lbs0 lbs1 lbs
139Methyl acrylate96-33-31 lbs0 lbs1 lbs
140Allyl chloride107-05-11 lbs0 lbs1 lbs
141Butyraldehyde123-72-81 lbs0 lbs1 lbs

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