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 COMMON AREA LA PORTE 77571
Elevation
12.1 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: 2.1 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 81% 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)
1.19 million lbs
Extremely High
182.4x more than typical Houston property
≈ 60 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)
1.19 million lbs
Extremely High
246.7x 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)1,190,062 lbs1,189,583 lbs479 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,273,458 lbs91,713 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 81% 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, Vinyl acetate, Cyclohexane

View the full list of 49 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (49 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-1323,747 lbs0 lbs323,747 lbs
2Methanol67-56-1207,331 lbs55 lbs207,386 lbs
3Ammonia7664-41-7204,698 lbs0 lbs204,698 lbs
4Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
5Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
6Propylene oxide75-56-995,325 lbs0 lbs95,325 lbs
7Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
8n-Hexane110-54-317,593 lbs0 lbs17,593 lbs
9Isoprene78-79-515,828 lbs0 lbs15,828 lbs
101,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
11Xylene (mixed isomers)1330-20-78,223 lbs0 lbs8,223 lbs
12Styrene100-42-55,569 lbs0 lbs5,569 lbs
13Formaldehyde50-00-05,143 lbs0 lbs5,143 lbs
141,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
15Toluene108-88-33,240 lbs0 lbs3,240 lbs
161,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
17Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02,610 lbs0 lbs2,610 lbs
18Acetaldehyde75-07-02,587 lbs0 lbs2,587 lbs
19Butyl acrylate141-32-22,512 lbs0 lbs2,512 lbs
201,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
21Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
22NonylphenolN5301,974 lbs0 lbs1,974 lbs
23Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
24Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
25Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
26tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
27Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
28Ethylene glycol107-21-11,118 lbs0 lbs1,118 lbs
29Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
30Ethylbenzene100-41-4728 lbs0 lbs728 lbs
31Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
32Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
33Benzyl chloride100-44-7228 lbs0 lbs228 lbs
34Ethylene oxide75-21-8169 lbs0 lbs169 lbs
35n-Butyl alcohol71-36-3114 lbs0 lbs114 lbs
36Diethanolamine111-42-2106 lbs0 lbs106 lbs
37Diethyl sulfate64-67-585 lbs0 lbs85 lbs
38Zinc compoundsN98248 lbs33 lbs81 lbs
39Epichlorohydrin106-89-842 lbs0 lbs42 lbs
40Antimony compoundsN01020 lbs15 lbs35 lbs
41Acetonitrile75-05-833 lbs0 lbs33 lbs
42Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
43Formic acid64-18-621 lbs0 lbs21 lbs
442,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
45Cumene98-82-815 lbs0 lbs15 lbs
46Phthalic anhydride85-44-913 lbs0 lbs13 lbs
47Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
481,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
49Nickel 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 34 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (34 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
3Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
4Toluene108-88-3258 lbs0 lbs79,083 lbs
5Nickel compoundsN4950 lbs0 lbs74,741 lbs
6Xylene (mixed isomers)1330-20-7451 lbs0 lbs64,433 lbs
7Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
8Styrene100-42-5424 lbs0 lbs29,331 lbs
9Ethylene74-85-124,034 lbs0 lbs24,034 lbs
10Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
11n-Hexane110-54-3521 lbs0 lbs17,769 lbs
12Ammonia7664-41-716,568 lbs0 lbs16,568 lbs
13tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
14Ethylbenzene100-41-494 lbs0 lbs9,983 lbs
15Propylene oxide75-56-97,914 lbs0 lbs7,917 lbs
16Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
17Acetonitrile75-05-824 lbs0 lbs4,091 lbs
18Naphthalene91-20-3223 lbs0 lbs3,764 lbs
19Ethylene glycol107-21-1103 lbs0 lbs2,847 lbs
20NonylphenolN530551 lbs0 lbs2,678 lbs
21Isoprene78-79-52,125 lbs0 lbs2,125 lbs
22Certain glycol ethersN230421 lbs0 lbs2,084 lbs
231,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
241,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
25Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
26Benzyl chloride100-44-7119 lbs0 lbs379 lbs
27Formaldehyde50-00-0145 lbs0 lbs263 lbs
28Nitric acid7697-37-2217 lbs0 lbs217 lbs
291,4-Dioxane123-91-1126 lbs0 lbs126 lbs
30Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0119 lbs0 lbs119 lbs
31n-Butyl alcohol71-36-310 lbs0 lbs95 lbs
321,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
33Ethylene oxide75-21-842 lbs0 lbs42 lbs
34Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs

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