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
0 S ST PASADENA 77536
Elevation
27.2 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: 17.2 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)
19.9 million lbs
Extremely High
3050.1x more than typical Houston property
≈ 995 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)
12 million lbs
Extremely High
2488.1x 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)
7.9 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)19,899,459 lbs11,998,542 lbs7,900,917 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,922,919 lbs1,419,640 lbs331,523 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, Cumene, Propylene, 1,3-Butadiene

View the full list of 103 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (103 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs7,511,077 lbs7,511,077 lbs
2Ethylene74-85-11,700,686 lbs0 lbs1,700,686 lbs
3Cumene98-82-81,368,814 lbs883 lbs1,369,697 lbs
4Propylene115-07-11,278,690 lbs0 lbs1,278,690 lbs
51,3-Butadiene106-99-01,022,338 lbs45 lbs1,022,383 lbs
6Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-91,016,311 lbs0 lbs1,016,311 lbs
7Ammonia7664-41-7679,768 lbs14,832 lbs694,600 lbs
8Phenol108-95-2646,790 lbs1,112 lbs647,902 lbs
9Benzene71-43-2594,810 lbs245 lbs595,055 lbs
10Methanol67-56-1446,901 lbs141,201 lbs588,102 lbs
11Toluene108-88-3505,020 lbs199 lbs505,219 lbs
12Vinyl chloride75-01-4333,460 lbs59 lbs333,519 lbs
13Xylene (mixed isomers)1330-20-7258,238 lbs179 lbs258,417 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0247,526 lbs0 lbs247,526 lbs
15Acetophenone98-86-2213,206 lbs5,107 lbs218,312 lbs
16Hydrogen sulfide7783-06-4211,383 lbs2,545 lbs213,928 lbs
17n-Hexane110-54-3184,978 lbs10 lbs184,988 lbs
18Acetaldehyde75-07-0163,603 lbs5,354 lbs168,957 lbs
19Hydrogen cyanide74-90-8126,501 lbs2,741 lbs129,242 lbs
204,4'-Isopropylidenediphenol80-05-7125,700 lbs0 lbs125,700 lbs
211,2-Dichloroethane107-06-2125,688 lbs0 lbs125,688 lbs
22Epichlorohydrin106-89-8121,011 lbs3,811 lbs124,822 lbs
23Sodium nitrite7632-00-00 lbs102,300 lbs102,300 lbs
24Acetonitrile75-05-883,752 lbs12,219 lbs95,971 lbs
25Ethylbenzene100-41-473,430 lbs222 lbs73,652 lbs
26Isoprene78-79-569,617 lbs137 lbs69,754 lbs
27Zinc compoundsN9825,079 lbs62,059 lbs67,137 lbs
28Propylene oxide75-56-953,747 lbs0 lbs53,747 lbs
29Ethylene glycol107-21-133,071 lbs9,387 lbs42,458 lbs
30Diethanolamine111-42-235,781 lbs0 lbs35,781 lbs
31Isobutyraldehyde78-84-228,404 lbs0 lbs28,404 lbs
321,2,4-Trimethylbenzene95-63-623,633 lbs0 lbs23,633 lbs
33Butyraldehyde123-72-823,130 lbs0 lbs23,130 lbs
34Naphthalene91-20-321,844 lbs206 lbs22,050 lbs
35Dichloromethane75-09-219,581 lbs39 lbs19,620 lbs
36Butyl acrylate141-32-218,363 lbs0 lbs18,363 lbs
37Chlorine7782-50-518,361 lbs0 lbs18,361 lbs
38Boron trifluoride7637-07-214,399 lbs0 lbs14,399 lbs
39Maleic anhydride108-31-613,892 lbs0 lbs13,892 lbs
40Cyclohexane110-82-713,331 lbs284 lbs13,615 lbs
41Cumene hydroperoxide80-15-911,006 lbs0 lbs11,006 lbs
42Trade SecretTRD SECRT9,705 lbs0 lbs9,705 lbs
43Dicyclopentadiene77-73-68,670 lbs0 lbs8,670 lbs
44Allyl alcohol107-18-67,427 lbs626 lbs8,053 lbs
45sec-Butyl alcohol78-92-21,946 lbs5,600 lbs7,546 lbs
46Glycidol556-52-52,841 lbs4,410 lbs7,251 lbs
47Manganese compoundsN450137 lbs5,037 lbs5,174 lbs
48Methyl isobutyl ketone108-10-14,714 lbs2 lbs4,716 lbs
49Tetrachloroethylene127-18-44,241 lbs176 lbs4,417 lbs
50n-Butyl alcohol71-36-34,032 lbs0 lbs4,032 lbs
51Nickel compoundsN49580 lbs3,764 lbs3,844 lbs
52Styrene100-42-53,800 lbs16 lbs3,816 lbs
53Phthalic anhydride85-44-93,545 lbs0 lbs3,545 lbs
54Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs1,936 lbs1,936 lbs
55Lead compoundsN420509 lbs1,376 lbs1,886 lbs
56Phenanthrene85-01-81,547 lbs159 lbs1,706 lbs
57o-Cresol95-48-71,585 lbs0 lbs1,585 lbs
581,1,2-Trichloroethane79-00-51,537 lbs0 lbs1,537 lbs
59Nonylphenol EthoxylatesN5351,381 lbs0 lbs1,381 lbs
60o-Xylene95-47-61,330 lbs0 lbs1,330 lbs
61Bis(2-chloroethyl) ether111-44-4950 lbs0 lbs950 lbs
62Formaldehyde50-00-0857 lbs0 lbs857 lbs
63Polycyclic aromatic compoundsN590576 lbs130 lbs782 lbs
64Lead And Lead CompoundsN420267 lbs421 lbs689 lbs
65Chloroform67-66-3638 lbs0 lbs638 lbs
66Anthracene120-12-7534 lbs70 lbs604 lbs
67Trichloroethylene79-01-6603 lbs0 lbs603 lbs
68Cresol (mixed isomers)1319-77-3430 lbs146 lbs576 lbs
69Certain glycol ethersN230557 lbs0 lbs557 lbs
70Acrylic acid79-10-7348 lbs0 lbs348 lbs
71Pentachloroethane76-01-7323 lbs0 lbs323 lbs
72Mercury compoundsN458105 lbs212 lbs317 lbs
73Chloroethane75-00-3284 lbs0 lbs284 lbs
74Mercury And Mercury CompoundsN45836 lbs195 lbs230 lbs
751,1,2,2-Tetrachloroethane79-34-5219 lbs0 lbs219 lbs
76Benzo[g,h,i]perylene191-24-296 lbs74 lbs170 lbs
77Diphenylamine122-39-4128 lbs14 lbs142 lbs
78Cobalt compoundsN09633 lbs89 lbs122 lbs
79Barium And Barium CompoundsN0400 lbs99 lbs99 lbs
80Carbon disulfide75-15-084 lbs0 lbs84 lbs
81Chlorobenzene108-90-777 lbs0 lbs77 lbs
821,2-Dichloroethylene540-59-075 lbs0 lbs75 lbs
83NonylphenolN53061 lbs0 lbs61 lbs
84Chloroprene126-99-855 lbs0 lbs55 lbs
85Nitric acid7697-37-249 lbs0 lbs49 lbs
86Methyl acrylate96-33-347 lbs0 lbs47 lbs
87Ethylidene dichloride75-34-337 lbs0 lbs37 lbs
88Cobalt And Cobalt CompoundsN09612 lbs24 lbs36 lbs
89Ethyl acrylate140-88-535 lbs0 lbs35 lbs
90Triethylamine121-44-834 lbs0 lbs34 lbs
91Chromium7440-47-30 lbs33 lbs33 lbs
92Nickel7440-02-00 lbs31 lbs31 lbs
93Dioxin and dioxin-like compoundsN1508 lbs23 lbs31 lbs
94Carbon tetrachloride56-23-527 lbs0 lbs27 lbs
95Methyl methacrylate80-62-625 lbs0 lbs25 lbs
96Hexachloroethane67-72-116 lbs0 lbs16 lbs
97Vinylidene chloride75-35-415 lbs0 lbs15 lbs
98Propionaldehyde123-38-68 lbs0 lbs8 lbs
99trans-1,4-Dichloro-2-butene110-57-67 lbs0 lbs7 lbs
100DiisocyanatesN1206 lbs0 lbs6 lbs
101Hexachlorobenzene118-74-15 lbs0 lbs5 lbs
102N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs
103Acetamide60-35-52 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

Ethylene, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene, 1,3-Butadiene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 84 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (84 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1471,291 lbs0 lbs471,291 lbs
2Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs277,377 lbs277,377 lbs
3Propylene115-07-1201,043 lbs0 lbs201,043 lbs
41,3-Butadiene106-99-0108,938 lbs9 lbs108,947 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-997,096 lbs0 lbs97,096 lbs
64,4'-Isopropylidenediphenol80-05-710,300 lbs0 lbs89,800 lbs
7Cumene98-82-887,663 lbs31 lbs87,798 lbs
8Methanol67-56-117,927 lbs27,510 lbs72,875 lbs
9Benzene71-43-258,001 lbs7 lbs60,171 lbs
10Ammonia7664-41-746,802 lbs1,580 lbs56,097 lbs
11Toluene108-88-350,315 lbs10 lbs51,765 lbs
12Phenol108-95-244,667 lbs254 lbs48,437 lbs
13Hydrogen sulfide7783-06-438,758 lbs289 lbs39,047 lbs
14Vinyl chloride75-01-424,220 lbs4 lbs24,224 lbs
15Xylene (mixed isomers)1330-20-718,785 lbs10 lbs20,598 lbs
16Acetophenone98-86-217,907 lbs860 lbs18,767 lbs
17n-Hexane110-54-315,830 lbs10 lbs15,840 lbs
18Zinc compoundsN982340 lbs9,539 lbs15,648 lbs
19Hydrogen cyanide74-90-813,000 lbs70 lbs13,070 lbs
20Diethanolamine111-42-23,059 lbs0 lbs12,859 lbs
21Lead compoundsN42093 lbs169 lbs12,855 lbs
22Acetaldehyde75-07-012,161 lbs541 lbs12,702 lbs
23Epichlorohydrin106-89-812,291 lbs331 lbs12,622 lbs
24Nickel compoundsN4950 lbs218 lbs11,929 lbs
25Dichloromethane75-09-29,911 lbs10 lbs9,922 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-09,647 lbs0 lbs9,647 lbs
271,2-Dichloroethane107-06-28,530 lbs0 lbs8,530 lbs
28Acetonitrile75-05-84,900 lbs3,100 lbs8,000 lbs
29Trade SecretTRD SECRT5,677 lbs0 lbs5,677 lbs
30Ethylbenzene100-41-44,620 lbs7 lbs5,262 lbs
31Sodium nitrite7632-00-00 lbs4,600 lbs4,600 lbs
32Isobutyraldehyde78-84-24,431 lbs0 lbs4,431 lbs
33Naphthalene91-20-32,376 lbs22 lbs4,130 lbs
34Glycidol556-52-51,002 lbs2,400 lbs3,402 lbs
351,2,4-Trimethylbenzene95-63-62,446 lbs0 lbs2,966 lbs
36sec-Butyl alcohol78-92-2540 lbs2,100 lbs2,640 lbs
37Butyraldehyde123-72-82,507 lbs0 lbs2,507 lbs
38Isoprene78-79-52,360 lbs16 lbs2,376 lbs
39Ethylene glycol107-21-12,086 lbs0 lbs2,086 lbs
40Ethyl acrylate140-88-56 lbs0 lbs1,809 lbs
41Styrene100-42-51,160 lbs2 lbs1,371 lbs
42Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
43o-Cresol95-48-788 lbs0 lbs1,122 lbs
44Maleic anhydride108-31-6833 lbs0 lbs982 lbs
45Formaldehyde50-00-099 lbs0 lbs978 lbs
46Cyclohexane110-82-7858 lbs17 lbs875 lbs
47Chlorine7782-50-5798 lbs0 lbs798 lbs
48n-Butyl alcohol71-36-3638 lbs0 lbs638 lbs
49Butyl acrylate141-32-2597 lbs0 lbs597 lbs
50Dicyclopentadiene77-73-6493 lbs0 lbs503 lbs
51Polycyclic aromatic compoundsN59012 lbs14 lbs390 lbs
52Manganese compoundsN45037 lbs350 lbs387 lbs
53Cumene hydroperoxide80-15-9384 lbs0 lbs384 lbs
54NonylphenolN5302 lbs0 lbs374 lbs
55Benzo[g,h,i]perylene191-24-20 lbs1 lbs334 lbs
56Tetrachloroethylene127-18-4282 lbs4 lbs286 lbs
571,1,2-Trichloroethane79-00-5166 lbs0 lbs166 lbs
58Acrylic acid79-10-7127 lbs0 lbs127 lbs
59Bis(2-chloroethyl) ether111-44-496 lbs0 lbs96 lbs
60Mercury compoundsN4580 lbs53 lbs54 lbs
61Dioxin and dioxin-like compoundsN1501 lbs0 lbs53 lbs
62Methyl isobutyl ketone108-10-10 lbs0 lbs44 lbs
63Chloroform67-66-344 lbs0 lbs44 lbs
64Trichloroethylene79-01-643 lbs0 lbs43 lbs
65Lead7439-92-10 lbs0 lbs38 lbs
66Pentachloroethane76-01-736 lbs0 lbs36 lbs
67Mercury And Mercury CompoundsN45817 lbs0 lbs32 lbs
681,1,2,2-Tetrachloroethane79-34-524 lbs0 lbs24 lbs
69Diphenylamine122-39-423 lbs0 lbs23 lbs
70Chloroethane75-00-321 lbs0 lbs21 lbs
71Chlorobenzene108-90-714 lbs0 lbs14 lbs
72Carbon disulfide75-15-012 lbs0 lbs12 lbs
73Nitric acid7697-37-211 lbs0 lbs11 lbs
74Chromium7440-47-30 lbs2 lbs8 lbs
75Phenanthrene85-01-86 lbs1 lbs7 lbs
76Nickel7440-02-00 lbs2 lbs6 lbs
771,2-Dichloroethylene540-59-05 lbs0 lbs5 lbs
78Carbon tetrachloride56-23-54 lbs0 lbs4 lbs
79Chloroprene126-99-83 lbs0 lbs3 lbs
80Hexachloroethane67-72-12 lbs0 lbs2 lbs
81Anthracene120-12-71 lbs1 lbs2 lbs
82Ethylidene dichloride75-34-31 lbs0 lbs1 lbs
83Propylene oxide75-56-91 lbs0 lbs1 lbs
84Hexachlorobenzene118-74-11 lbs0 lbs1 lbs

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