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
4803 BLAND ST SEABROOK 77586
Building Size
3,041 sqft
Total structure area from HCAD building records.
Elevation
11.53 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: 1.53 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 76% 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)
551 thousand lbs
Very High
84.5x more than typical Houston property
≈ 28 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)
551 thousand lbs
Extremely High
114.3x 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)
88 lbs
Above Typical
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)551,319 lbs551,231 lbs88 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)151,091 lbs41,911 lbs46 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 76% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile (top 25% most polluted).

Top chemicals released near this property (past 10 years):

Acrylic acid, Benzene, Ethylbenzene, Styrene, Ammonia

View the full list of 18 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (18 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
2Benzene71-43-2115,467 lbs0 lbs115,467 lbs
3Ethylbenzene100-41-465,946 lbs0 lbs65,946 lbs
4Styrene100-42-547,421 lbs0 lbs47,421 lbs
5Ammonia7664-41-717,698 lbs0 lbs17,698 lbs
6Propylene115-07-115,687 lbs0 lbs15,687 lbs
7Ethylene74-85-115,437 lbs0 lbs15,437 lbs
8Toluene108-88-38,313 lbs0 lbs8,313 lbs
9Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
10Formaldehyde50-00-02,450 lbs0 lbs2,450 lbs
11Formic acid64-18-61,996 lbs0 lbs1,996 lbs
12Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
13Butyl acrylate141-32-21,939 lbs0 lbs1,939 lbs
141,3-Butadiene106-99-01,870 lbs0 lbs1,870 lbs
15Maleic anhydride108-31-6534 lbs0 lbs534 lbs
16Acrolein107-02-8402 lbs0 lbs402 lbs
17Hydroquinone123-31-9355 lbs0 lbs355 lbs
18Xylene (mixed isomers)1330-20-765 lbs0 lbs65 lbs

Top chemicals released near this property (2024 only):

Acrylic acid, Benzene, Ethylbenzene, Styrene, Propylene

View the full list of 16 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (16 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
2Benzene71-43-28,393 lbs0 lbs8,949 lbs
3Ethylbenzene100-41-43,948 lbs0 lbs5,723 lbs
4Styrene100-42-53,330 lbs0 lbs3,992 lbs
5Propylene115-07-12,003 lbs0 lbs2,003 lbs
6Formic acid64-18-6175 lbs0 lbs1,197 lbs
7Acrylonitrile107-13-1879 lbs0 lbs1,029 lbs
8Toluene108-88-3525 lbs0 lbs957 lbs
9Butyl acrylate141-32-2848 lbs0 lbs848 lbs
10Ethylene74-85-1741 lbs0 lbs741 lbs
11Formaldehyde50-00-0151 lbs0 lbs672 lbs
12Trade SecretTRD SECRT0 lbs46 lbs581 lbs
13Hydroquinone123-31-923 lbs0 lbs185 lbs
14Ethylene glycol107-21-10 lbs0 lbs85 lbs
15Acrolein107-02-828 lbs0 lbs38 lbs
16Maleic anhydride108-31-626 lbs0 lbs26 lbs

Explore More Properties