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
3205 BROADWAY LA PORTE 77571
Elevation
9.91 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
High
Property flooded at 0.1ft depth. Risk based on flood depth at structure.

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
High
Flood Depth
0.09 ft ±0.5 ft
Depth of water above ground 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 Flooded
Flood Depth: 0.09 feet
Severity: Minor

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.
  • Simulation shows flooding at current water level - review property drainage and consider mitigation.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
High
Higher pollution than 84% 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)
1.87 million lbs
Extremely High
285.9x more than typical Houston property
≈ 93 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)
1.86 million lbs
Extremely High
386.7x 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)
566 lbs
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)1,865,473 lbs1,864,907 lbs566 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,431,144 lbs140,124 lbs51 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 84% 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):

Ethylene, Methanol, Ammonia, Acrylic acid, Vinyl acetate

View the full list of 55 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (55 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-1339,184 lbs0 lbs339,184 lbs
2Methanol67-56-1288,963 lbs55 lbs289,018 lbs
3Ammonia7664-41-7265,454 lbs0 lbs265,454 lbs
4Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
5Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
6Benzene71-43-2115,467 lbs0 lbs115,467 lbs
7Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
8Propylene oxide75-56-995,325 lbs0 lbs95,325 lbs
9Ethylbenzene100-41-466,674 lbs0 lbs66,674 lbs
10Styrene100-42-552,990 lbs0 lbs52,990 lbs
11Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
12n-Hexane110-54-317,593 lbs0 lbs17,593 lbs
13Isoprene78-79-515,828 lbs0 lbs15,828 lbs
14Propylene115-07-115,687 lbs0 lbs15,687 lbs
151,3-Butadiene106-99-014,544 lbs0 lbs14,544 lbs
16Toluene108-88-311,553 lbs0 lbs11,553 lbs
17Xylene (mixed isomers)1330-20-78,288 lbs0 lbs8,288 lbs
18Formaldehyde50-00-07,593 lbs0 lbs7,593 lbs
19Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
201,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
21Butyl acrylate141-32-24,451 lbs0 lbs4,451 lbs
221,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
23Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02,610 lbs0 lbs2,610 lbs
24Acetaldehyde75-07-02,587 lbs0 lbs2,587 lbs
251,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
26Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
27Formic acid64-18-62,017 lbs0 lbs2,017 lbs
28Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
29NonylphenolN5301,974 lbs0 lbs1,974 lbs
30Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
31Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
32Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
33tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
34Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
35Ethylene glycol107-21-11,118 lbs0 lbs1,118 lbs
36Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
37Maleic anhydride108-31-6534 lbs0 lbs534 lbs
38Acrolein107-02-8402 lbs0 lbs402 lbs
39Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
40Hydroquinone123-31-9355 lbs0 lbs355 lbs
41Benzyl chloride100-44-7228 lbs0 lbs228 lbs
42Ethylene oxide75-21-8169 lbs0 lbs169 lbs
43n-Butyl alcohol71-36-3114 lbs0 lbs114 lbs
44Diethanolamine111-42-2106 lbs0 lbs106 lbs
45Diethyl sulfate64-67-585 lbs0 lbs85 lbs
46Zinc compoundsN98248 lbs33 lbs81 lbs
47Epichlorohydrin106-89-842 lbs0 lbs42 lbs
48Antimony compoundsN01020 lbs15 lbs35 lbs
49Acetonitrile75-05-833 lbs0 lbs33 lbs
50Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
512,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
52Cumene98-82-815 lbs0 lbs15 lbs
53Phthalic anhydride85-44-913 lbs0 lbs13 lbs
54Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
551,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Acrylic acid, Vinyl acetate, Toluene

View the full list of 44 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (44 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-115,367 lbs5 lbs497,442 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
4Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
5Toluene108-88-3783 lbs0 lbs80,040 lbs
6Nickel compoundsN4950 lbs0 lbs74,741 lbs
7Xylene (mixed isomers)1330-20-7451 lbs0 lbs64,433 lbs
8Styrene100-42-53,754 lbs0 lbs33,323 lbs
9Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
10Ethylene74-85-124,775 lbs0 lbs24,775 lbs
11Ammonia7664-41-723,068 lbs0 lbs23,164 lbs
12Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
13n-Hexane110-54-3521 lbs0 lbs17,769 lbs
14Ethylbenzene100-41-44,042 lbs0 lbs15,706 lbs
15tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
16Benzene71-43-28,393 lbs0 lbs8,949 lbs
17Propylene oxide75-56-97,914 lbs0 lbs7,917 lbs
18Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
19Acetonitrile75-05-824 lbs0 lbs4,091 lbs
20Naphthalene91-20-3223 lbs0 lbs3,764 lbs
21Ethylene glycol107-21-1103 lbs0 lbs2,932 lbs
22NonylphenolN530551 lbs0 lbs2,678 lbs
23Isoprene78-79-52,125 lbs0 lbs2,125 lbs
24Certain glycol ethersN230421 lbs0 lbs2,084 lbs
25Propylene115-07-12,003 lbs0 lbs2,003 lbs
261,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
27Formic acid64-18-6175 lbs0 lbs1,197 lbs
281,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
29Acrylonitrile107-13-1879 lbs0 lbs1,029 lbs
30Formaldehyde50-00-0296 lbs0 lbs936 lbs
31Butyl acrylate141-32-2848 lbs0 lbs848 lbs
32Trade SecretTRD SECRT0 lbs46 lbs581 lbs
33Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
34Benzyl chloride100-44-7119 lbs0 lbs379 lbs
35Nitric acid7697-37-2217 lbs0 lbs217 lbs
36Hydroquinone123-31-923 lbs0 lbs185 lbs
371,4-Dioxane123-91-1126 lbs0 lbs126 lbs
38Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0119 lbs0 lbs119 lbs
39n-Butyl alcohol71-36-310 lbs0 lbs95 lbs
401,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
41Ethylene oxide75-21-842 lbs0 lbs42 lbs
42Acrolein107-02-828 lbs0 lbs38 lbs
43Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
44Maleic anhydride108-31-626 lbs0 lbs26 lbs

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