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
1806 HIGHWAY 146 S LA PORTE 77571
Elevation
16.07 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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: 6.07 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.

  • This property is in a high-risk flood zone. Flood insurance is required for mortgages.
  • Consider flood mitigation measures like elevated utilities and flood vents.
  • 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
High
Higher pollution than 88% 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)
3.95 million lbs
Extremely High
605.7x more than typical Houston property
≈ 198 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)
3.95 million lbs
Extremely High
818.2x 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)
6 thousand lbs
Very 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)3,951,738 lbs3,945,878 lbs5,860 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,496,729 lbs362,908 lbs623 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 88% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile (top 15% most polluted).

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

n-Hexane, Ethylene, Methanol, Toluene, Ammonia

View the full list of 77 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (77 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,030,724 lbs0 lbs1,030,724 lbs
2Ethylene74-85-1743,892 lbs0 lbs743,892 lbs
3Methanol67-56-1444,555 lbs55 lbs444,610 lbs
4Toluene108-88-3429,217 lbs0 lbs429,217 lbs
5Ammonia7664-41-7311,322 lbs68 lbs311,390 lbs
6Vinyl acetate108-05-4142,721 lbs0 lbs142,721 lbs
7Cyclohexane110-82-7103,018 lbs0 lbs103,018 lbs
8Propylene oxide75-56-995,710 lbs0 lbs95,710 lbs
9Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
10n-Butyl alcohol71-36-355,709 lbs0 lbs55,709 lbs
11Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
12Propylene115-07-136,801 lbs0 lbs36,801 lbs
13Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-035,668 lbs0 lbs35,668 lbs
15Certain glycol ethersN23034,375 lbs0 lbs34,375 lbs
16Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
17Cumene98-82-831,188 lbs0 lbs31,188 lbs
18Phenol108-95-230,497 lbs0 lbs30,497 lbs
19Molybdenum trioxide1313-27-527,245 lbs3,165 lbs30,410 lbs
20Xylene (mixed isomers)1330-20-723,740 lbs0 lbs23,740 lbs
21Styrene100-42-517,954 lbs0 lbs17,954 lbs
22Isoprene78-79-515,828 lbs0 lbs15,828 lbs
23Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
24Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
251,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
26Nickel compoundsN4959,885 lbs1,149 lbs11,034 lbs
27Benzene71-43-210,536 lbs0 lbs10,536 lbs
28Formaldehyde50-00-07,881 lbs102 lbs7,983 lbs
29tert-Butyl alcohol75-65-06,837 lbs0 lbs6,837 lbs
30Ethylbenzene100-41-46,035 lbs0 lbs6,035 lbs
31Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
321,2,4-Trimethylbenzene95-63-65,539 lbs0 lbs5,539 lbs
33Cobalt compoundsN0963,961 lbs866 lbs4,827 lbs
34Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
35Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
36Allyl alcohol107-18-63,389 lbs0 lbs3,389 lbs
37Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
381,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
39Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
40Ethylene oxide75-21-82,391 lbs0 lbs2,391 lbs
411,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
42Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
43NonylphenolN5301,974 lbs0 lbs1,974 lbs
44Phosgene75-44-51,958 lbs0 lbs1,958 lbs
45Naphthalene91-20-31,668 lbs0 lbs1,668 lbs
46Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
47Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
48sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
49Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
50Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
51Ethylene glycol107-21-11,155 lbs0 lbs1,155 lbs
52Maleic anhydride108-31-6966 lbs0 lbs966 lbs
53Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
54Nickel And Nickel CompoundsN495702 lbs21 lbs723 lbs
55Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
56Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
57Hydrazine302-01-2437 lbs0 lbs437 lbs
58Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
59Cobalt And Cobalt CompoundsN096300 lbs5 lbs305 lbs
60Benzyl chloride100-44-7228 lbs0 lbs228 lbs
61Copper compoundsN100132 lbs6 lbs138 lbs
62Diethanolamine111-42-2106 lbs0 lbs106 lbs
63Diethyl sulfate64-67-585 lbs0 lbs85 lbs
64Zinc compoundsN98248 lbs33 lbs81 lbs
65Chloromethane74-87-351 lbs0 lbs51 lbs
66Epichlorohydrin106-89-842 lbs0 lbs42 lbs
67Antimony compoundsN01020 lbs15 lbs35 lbs
68N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
69Acetonitrile75-05-833 lbs0 lbs33 lbs
70Bis(2-chloroethyl) ether111-44-429 lbs0 lbs29 lbs
71Formic acid64-18-621 lbs0 lbs21 lbs
722,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
73Phthalic anhydride85-44-913 lbs0 lbs13 lbs
74Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
75Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
761,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
77Boron trifluoride7637-07-21 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, n-Hexane, Vinyl acetate, Toluene

View the full list of 60 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (60 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-127,504 lbs5 lbs1,032,202 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3n-Hexane110-54-3117,061 lbs0 lbs134,809 lbs
4Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
5Toluene108-88-314,321 lbs0 lbs119,857 lbs
6tert-Butyl alcohol75-65-0493 lbs0 lbs109,357 lbs
7Ethylene74-85-196,034 lbs0 lbs96,034 lbs
8Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
9Nickel compoundsN4951,017 lbs108 lbs82,592 lbs
10Xylene (mixed isomers)1330-20-71,086 lbs0 lbs78,369 lbs
11Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
121,2,4-Trimethylbenzene95-63-6698 lbs0 lbs46,009 lbs
13Molybdenum trioxide1313-27-52,612 lbs474 lbs33,276 lbs
14Cyclohexane110-82-78,125 lbs0 lbs29,726 lbs
15Styrene100-42-5798 lbs0 lbs29,705 lbs
16Ammonia7664-41-725,260 lbs0 lbs25,912 lbs
17Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
18Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
19Ethylbenzene100-41-4369 lbs0 lbs12,896 lbs
20Nonylphenol EthoxylatesN5350 lbs0 lbs11,809 lbs
21Propylene115-07-110,035 lbs0 lbs10,035 lbs
22Naphthalene91-20-3235 lbs0 lbs8,175 lbs
23Propylene oxide75-56-97,975 lbs0 lbs7,978 lbs
24Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
25Phenol108-95-21,875 lbs0 lbs6,506 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,374 lbs0 lbs6,374 lbs
27Cumene98-82-82,616 lbs0 lbs5,324 lbs
28Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
29Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
30n-Butyl alcohol71-36-31,017 lbs0 lbs4,633 lbs
31Acetonitrile75-05-824 lbs0 lbs4,091 lbs
32Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
33Ethylene glycol107-21-1106 lbs0 lbs3,994 lbs
34Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
35sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
36Ethylene oxide75-21-8525 lbs0 lbs3,225 lbs
37Cobalt compoundsN096455 lbs36 lbs2,816 lbs
38NonylphenolN530551 lbs0 lbs2,678 lbs
39Isoprene78-79-52,125 lbs0 lbs2,125 lbs
40Certain glycol ethersN230421 lbs0 lbs2,084 lbs
41Cumene hydroperoxide80-15-90 lbs0 lbs1,560 lbs
421,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
43Benzene71-43-21,090 lbs0 lbs1,090 lbs
44Chlorine7782-50-5961 lbs0 lbs961 lbs
45Formaldehyde50-00-0299 lbs0 lbs930 lbs
46Maleic anhydride108-31-6178 lbs0 lbs578 lbs
47Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
48Dimethyl phthalate131-11-30 lbs0 lbs406 lbs
49Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
50Benzyl chloride100-44-7119 lbs0 lbs379 lbs
51Nitric acid7697-37-2219 lbs0 lbs219 lbs
52Acrylic acid79-10-7186 lbs0 lbs192 lbs
531,4-Dioxane123-91-1126 lbs0 lbs126 lbs
54Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
551,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
56Hydrazine302-01-239 lbs0 lbs39 lbs
57Benzoyl chloride98-88-433 lbs0 lbs33 lbs
58Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
59Phosgene75-44-527 lbs0 lbs27 lbs
60Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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