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
1810 S BROADWAY LA PORTE 77571
Building Size
1,783 sqft
Total structure area from HCAD building records.
Elevation
12.43 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
Property not flooded at current water level. No damage to calculate.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Property not flooded at current water level. No damage to calculate.
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: 2.43 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 82% 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)
1.38 million lbs
Extremely High
211.3x more than typical Houston property
≈ 69 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)
1.38 million lbs
Extremely High
285.7x 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)
479 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)1,378,412 lbs1,377,934 lbs479 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,547,726 lbs117,775 lbs5 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 82% 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):

Methanol, Ethylene, Vinyl acetate, Cyclohexane, Ammonia

View the full list of 50 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (50 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-1356,722 lbs55 lbs356,777 lbs
2Ethylene74-85-1346,604 lbs0 lbs346,604 lbs
3Vinyl acetate108-05-4139,491 lbs0 lbs139,491 lbs
4Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
5Ammonia7664-41-787,668 lbs0 lbs87,668 lbs
6Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
7Propylene115-07-136,801 lbs0 lbs36,801 lbs
8Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-035,668 lbs0 lbs35,668 lbs
10Cumene98-82-831,096 lbs0 lbs31,096 lbs
11n-Hexane110-54-317,593 lbs0 lbs17,593 lbs
12Propylene oxide75-56-916,752 lbs0 lbs16,752 lbs
13Isoprene78-79-515,828 lbs0 lbs15,828 lbs
14Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
15Styrene100-42-512,913 lbs0 lbs12,913 lbs
16Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
171,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
18Benzene71-43-210,536 lbs0 lbs10,536 lbs
19Xylene (mixed isomers)1330-20-75,625 lbs0 lbs5,625 lbs
20Toluene108-88-34,300 lbs0 lbs4,300 lbs
21Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
22Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
23Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
24Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
251,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
26Phosgene75-44-51,958 lbs0 lbs1,958 lbs
27Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
28Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
29Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
30Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
31Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
32Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
33sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
34Ethylene oxide75-21-81,431 lbs0 lbs1,431 lbs
35Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
36tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
37n-Butyl alcohol71-36-31,211 lbs0 lbs1,211 lbs
38Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
39Diphenylamine122-39-4997 lbs0 lbs997 lbs
40Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
41N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
42Ethylene glycol107-21-1527 lbs0 lbs527 lbs
43Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
44Dichloromethane75-09-2251 lbs0 lbs251 lbs
45Zinc compoundsN98235 lbs33 lbs68 lbs
46Antimony compoundsN01020 lbs15 lbs35 lbs
47Phthalic anhydride85-44-913 lbs0 lbs13 lbs
48Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
49Butyl acrylate141-32-25 lbs0 lbs5 lbs
50Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Vinyl acetate, Toluene, Nickel compounds

View the full list of 40 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (40 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-125,125 lbs5 lbs786,516 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
4Toluene108-88-3196 lbs0 lbs75,795 lbs
5Nickel compoundsN4950 lbs0 lbs74,741 lbs
6Styrene100-42-5540 lbs0 lbs29,447 lbs
7Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
8Xylene (mixed isomers)1330-20-788 lbs0 lbs25,339 lbs
9Ethylene74-85-124,713 lbs0 lbs24,713 lbs
10Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
11Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
12n-Hexane110-54-3521 lbs0 lbs17,769 lbs
13tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
14Propylene115-07-110,035 lbs0 lbs10,035 lbs
15Ammonia7664-41-77,795 lbs0 lbs8,021 lbs
16Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
17Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,374 lbs0 lbs6,374 lbs
18Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
19Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
20Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
21sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
22n-Butyl alcohol71-36-385 lbs0 lbs2,624 lbs
23Cumene98-82-82,611 lbs0 lbs2,611 lbs
24Isoprene78-79-52,125 lbs0 lbs2,125 lbs
251,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
26Benzene71-43-21,090 lbs0 lbs1,090 lbs
27Chlorine7782-50-5961 lbs0 lbs961 lbs
28Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
29Propylene oxide75-56-9430 lbs0 lbs430 lbs
30Ethylene oxide75-21-8420 lbs0 lbs420 lbs
31Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
32Nitric acid7697-37-2217 lbs0 lbs217 lbs
33Acrylic acid79-10-7186 lbs0 lbs192 lbs
34Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
35Diphenylamine122-39-4103 lbs0 lbs103 lbs
361,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
37Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
38Phosgene75-44-527 lbs0 lbs27 lbs
39Ethylene glycol107-21-115 lbs0 lbs21 lbs
40Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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