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
10902 BOIS D ARC ST LA PORTE 77571
Building Size
3,004 sqft
Total structure area from HCAD building records.
Elevation
23.99 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
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: 13.99 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 91% 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)
11.01 million lbs
Extremely High
1686.9x more than typical Houston property
≈ 550 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)
8.54 million lbs
Extremely High
1770.9x 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)
2.47 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)11,005,564 lbs8,539,683 lbs2,465,880 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,977,204 lbs610,990 lbs176,882 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 91% 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):

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

View the full list of 57 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (57 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-11,911,824 lbs653,582 lbs10,230,331 lbs
2Vinyl acetate108-05-41,447,723 lbs5,684 lbs4,152,949 lbs
3Ethylene74-85-12,687,145 lbs0 lbs2,687,145 lbs
4Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,746,382 lbs1,746,382 lbs
5Propylene115-07-11,107,583 lbs0 lbs1,107,583 lbs
6Acetaldehyde75-07-0219,660 lbs0 lbs554,695 lbs
7Hydroquinone123-31-90 lbs0 lbs430,145 lbs
8n-Hexane110-54-3410,309 lbs0 lbs410,309 lbs
9Ammonia7664-41-7239,837 lbs12,191 lbs252,028 lbs
10Formaldehyde50-00-063,808 lbs0 lbs63,808 lbs
11Certain glycol ethersN23062,831 lbs0 lbs62,831 lbs
12Xylene (mixed isomers)1330-20-743,900 lbs0 lbs58,245 lbs
131,3-Butadiene106-99-050,362 lbs0 lbs50,362 lbs
14Toluene108-88-348,372 lbs33 lbs48,405 lbs
15n-Butyl alcohol71-36-348,129 lbs0 lbs48,129 lbs
16Methyl iodide74-88-437,993 lbs0 lbs37,993 lbs
17Chlorine7782-50-534,156 lbs3,421 lbs37,577 lbs
18Copper compoundsN1001 lbs84 lbs29,084 lbs
19Sodium nitrite7632-00-00 lbs26,012 lbs26,012 lbs
20Zinc compoundsN9824,689 lbs17,693 lbs22,382 lbs
21Benzene71-43-219,821 lbs42 lbs19,863 lbs
22Ethylene glycol107-21-116,751 lbs0 lbs16,751 lbs
23Chlorobenzene108-90-716,036 lbs0 lbs16,036 lbs
24Boron trifluoride7637-07-214,190 lbs0 lbs14,190 lbs
25N,N-Dimethylformamide68-12-29,020 lbs0 lbs9,020 lbs
26Dimethylamine124-40-37,035 lbs0 lbs7,035 lbs
27Maleic anhydride108-31-65,569 lbs0 lbs5,569 lbs
28Methyl methacrylate80-62-65,482 lbs0 lbs5,482 lbs
29Dichloromethane75-09-25,437 lbs0 lbs5,437 lbs
30Acetonitrile75-05-85,326 lbs0 lbs5,326 lbs
31Isoprene78-79-54,985 lbs0 lbs4,985 lbs
32Mercury7439-97-60 lbs0 lbs2,200 lbs
33Methyl acrylate96-33-32,031 lbs0 lbs2,031 lbs
34Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
35Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
36Cyclohexane110-82-71,246 lbs0 lbs1,246 lbs
37Styrene100-42-51,209 lbs0 lbs1,209 lbs
38Hydrogen fluoride7664-39-31,062 lbs0 lbs1,062 lbs
39Acrolein107-02-8810 lbs0 lbs810 lbs
40Naphthalene91-20-3493 lbs33 lbs526 lbs
41Ethylbenzene100-41-4391 lbs32 lbs423 lbs
42Dicyclopentadiene77-73-6290 lbs0 lbs290 lbs
43Manganese7439-96-50 lbs282 lbs282 lbs
44DiisocyanatesN120275 lbs0 lbs275 lbs
45Hexazinone51235-04-20 lbs212 lbs212 lbs
46Nickel7440-02-00 lbs152 lbs152 lbs
47Chromium7440-47-345 lbs25 lbs70 lbs
48sec-Butyl alcohol78-92-268 lbs0 lbs68 lbs
49Lead7439-92-10 lbs10 lbs10 lbs
50Nickel compoundsN4954 lbs3 lbs8 lbs
51Polycyclic aromatic compoundsN5907 lbs0 lbs7 lbs
52Copper And Copper CompoundsN1000 lbs6 lbs6 lbs
53Nickel And Nickel CompoundsN4952 lbs1 lbs3 lbs
54Mercury compoundsN4582 lbs0 lbs2 lbs
55Benzo[g,h,i]perylene191-24-20 lbs1 lbs1 lbs
56Methyl isocyanate624-83-91 lbs0 lbs1 lbs
57Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Aluminum oxide (fibrous forms), Ethylene, Maleic anhydride, Vinyl acetate

View the full list of 36 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (36 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-174,731 lbs64,010 lbs1,686,667 lbs
2Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs353,010 lbs
3Ethylene74-85-1206,385 lbs0 lbs206,385 lbs
4Maleic anhydride108-31-61,569 lbs0 lbs134,889 lbs
5Vinyl acetate108-05-488,722 lbs410 lbs132,067 lbs
6Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs112,100 lbs112,100 lbs
7Propylene115-07-198,454 lbs0 lbs98,454 lbs
8Acetaldehyde75-07-057,110 lbs0 lbs89,690 lbs
9Ammonia7664-41-729,391 lbs121 lbs67,904 lbs
10n-Hexane110-54-332,452 lbs0 lbs32,452 lbs
11Hydroquinone123-31-90 lbs0 lbs28,819 lbs
12Acrolein107-02-8209 lbs0 lbs7,515 lbs
13Formaldehyde50-00-03,559 lbs0 lbs5,799 lbs
14Chlorine7782-50-53,660 lbs0 lbs3,660 lbs
151,3-Butadiene106-99-02,958 lbs0 lbs2,958 lbs
16Certain glycol ethersN2302,700 lbs0 lbs2,700 lbs
17Benzene71-43-21,725 lbs3 lbs2,171 lbs
18Polycyclic aromatic compoundsN5903 lbs0 lbs1,655 lbs
19Methyl iodide74-88-41,600 lbs0 lbs1,600 lbs
20Boron trifluoride7637-07-21,192 lbs0 lbs1,192 lbs
21Xylene (mixed isomers)1330-20-71,144 lbs0 lbs1,144 lbs
22Zinc compoundsN982425 lbs210 lbs1,065 lbs
23Isoprene78-79-5578 lbs0 lbs578 lbs
24N,N-Dimethylformamide68-12-2570 lbs0 lbs570 lbs
25Toluene108-88-3487 lbs3 lbs538 lbs
26Lead7439-92-10 lbs5 lbs457 lbs
27Ethylbenzene100-41-4358 lbs2 lbs365 lbs
28Naphthalene91-20-3270 lbs18 lbs288 lbs
29Cyclohexane110-82-7160 lbs0 lbs160 lbs
30Styrene100-42-5141 lbs0 lbs155 lbs
31Methyl methacrylate80-62-6142 lbs0 lbs142 lbs
32Dicyclopentadiene77-73-630 lbs0 lbs30 lbs
33Mercury And Mercury CompoundsN4581 lbs0 lbs12 lbs
34n-Butyl alcohol71-36-37 lbs0 lbs7 lbs
35sec-Butyl alcohol78-92-25 lbs0 lbs5 lbs
36Ethylene glycol107-21-11 lbs0 lbs1 lbs

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