📊 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
2902 F ST LA PORTE 77571
Building Size
1,775 sqft
Total structure area from HCAD building records.
Elevation
12.06 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: 2.06 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)
1.22 million lbs
Extremely High
187.0x more than typical Houston property
61 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)
1.22 million lbs
Extremely High
252.9x 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)
478 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)1,220,065 lbs1,219,587 lbs478 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)883,811 lbs90,220 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):

Ethylene, Methanol, Ammonia, Vinyl acetate, Cyclohexane

View the full list of 42 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (42 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-1323,747 lbs0 lbs323,747 lbs
2Methanol67-56-1287,128 lbs55 lbs287,183 lbs
3Ammonia7664-41-7204,698 lbs0 lbs204,698 lbs
4Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
5Cyclohexane110-82-7102,600 lbs0 lbs102,600 lbs
6Propylene oxide75-56-978,945 lbs0 lbs78,945 lbs
7Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
8Isoprene78-79-515,828 lbs0 lbs15,828 lbs
91,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
10Formaldehyde50-00-05,143 lbs0 lbs5,143 lbs
111,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
12Styrene100-42-54,016 lbs0 lbs4,016 lbs
131,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02,610 lbs0 lbs2,610 lbs
15Xylene (mixed isomers)1330-20-72,598 lbs0 lbs2,598 lbs
16Acetaldehyde75-07-02,587 lbs0 lbs2,587 lbs
17Butyl acrylate141-32-22,512 lbs0 lbs2,512 lbs
18Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
19NonylphenolN5301,974 lbs0 lbs1,974 lbs
20n-Hexane110-54-31,735 lbs0 lbs1,735 lbs
21Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
22Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
23Ethylene glycol107-21-11,078 lbs0 lbs1,078 lbs
24Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
25Ethylbenzene100-41-4728 lbs0 lbs728 lbs
26Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
27Benzyl chloride100-44-7228 lbs0 lbs228 lbs
28Toluene108-88-3201 lbs0 lbs201 lbs
29Ethylene oxide75-21-8169 lbs0 lbs169 lbs
30Diethanolamine111-42-2106 lbs0 lbs106 lbs
31Diethyl sulfate64-67-585 lbs0 lbs85 lbs
32Zinc compoundsN98248 lbs33 lbs81 lbs
33n-Butyl alcohol71-36-368 lbs0 lbs68 lbs
34Epichlorohydrin106-89-842 lbs0 lbs42 lbs
35Antimony compoundsN01020 lbs15 lbs35 lbs
36Acetonitrile75-05-833 lbs0 lbs33 lbs
37Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
38Formic acid64-18-621 lbs0 lbs21 lbs
392,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
40Cumene98-82-815 lbs0 lbs15 lbs
41Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
421,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

Methanol, Vinyl acetate, Nickel compounds, Xylene (mixed isomers), Cyclohexane

View the full list of 29 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (29 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-115,367 lbs5 lbs497,442 lbs
2Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
3Nickel compoundsN4950 lbs0 lbs74,741 lbs
4Xylene (mixed isomers)1330-20-7363 lbs0 lbs39,094 lbs
5Cyclohexane110-82-78,060 lbs0 lbs29,370 lbs
6Ethylene74-85-124,034 lbs0 lbs24,034 lbs
7Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
8Ammonia7664-41-716,568 lbs0 lbs16,568 lbs
9Styrene100-42-5268 lbs0 lbs13,745 lbs
10Ethylbenzene100-41-494 lbs0 lbs9,983 lbs
11Propylene oxide75-56-97,544 lbs0 lbs7,547 lbs
12Acetonitrile75-05-824 lbs0 lbs4,091 lbs
13Naphthalene91-20-3223 lbs0 lbs3,764 lbs
14Toluene108-88-362 lbs0 lbs3,288 lbs
15Ethylene glycol107-21-1103 lbs0 lbs2,847 lbs
16NonylphenolN530551 lbs0 lbs2,678 lbs
17Isoprene78-79-52,125 lbs0 lbs2,125 lbs
18Certain glycol ethersN230421 lbs0 lbs2,084 lbs
191,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
20n-Hexane110-54-3160 lbs0 lbs1,995 lbs
211,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
22Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
23Benzyl chloride100-44-7119 lbs0 lbs379 lbs
24Formaldehyde50-00-0145 lbs0 lbs263 lbs
25Nitric acid7697-37-2217 lbs0 lbs217 lbs
261,4-Dioxane123-91-1126 lbs0 lbs126 lbs
27Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0119 lbs0 lbs119 lbs
28Ethylene oxide75-21-842 lbs0 lbs42 lbs
29Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs

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