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
13531 BRIDGEWALK CV HOUSTON 77041
Building Size
2,064 sqft
Total structure area from HCAD building records.
Elevation
107.62 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: 97.62 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
Moderate
Higher pollution than 70% 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)
219 thousand lbs
High
33.6x more than typical Houston property
≈ 11 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)
216 thousand lbs
High
44.8x 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)
3 thousand lbs
Very 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)219,018 lbs215,891 lbs3,127 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)6,255 lbs5,179 lbs0 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 70% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile (higher than average pollution).

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

Toluene, Styrene, 1-Bromopropane, Ammonia, Nickel

View the full list of 17 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (17 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Toluene108-88-374,770 lbs0 lbs74,770 lbs
2Styrene100-42-553,277 lbs0 lbs54,435 lbs
31-Bromopropane106-94-550,819 lbs0 lbs50,819 lbs
4Ammonia7664-41-715,812 lbs0 lbs15,812 lbs
5Nickel7440-02-04,876 lbs73 lbs4,949 lbs
6Manganese7439-96-52,937 lbs1,687 lbs4,624 lbs
7Copper7440-50-82,850 lbs1,264 lbs4,113 lbs
8Chromium7440-47-33,456 lbs103 lbs3,559 lbs
9Zinc compoundsN9822,820 lbs0 lbs2,820 lbs
10Nitric acid7697-37-22,688 lbs0 lbs2,688 lbs
11Hydrogen fluoride7664-39-31,458 lbs0 lbs1,458 lbs
12Ethylene glycol107-21-1102 lbs0 lbs102 lbs
13Zinc (fume or dust)7440-66-613 lbs0 lbs13 lbs
14Cobalt7440-48-48 lbs0 lbs8 lbs
15Lead7439-92-13 lbs0 lbs3 lbs
16Selenium7782-49-22 lbs0 lbs2 lbs
17Aluminum (fume or dust)7429-90-51 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

1-Bromopropane, Nickel, Chromium, Manganese, Hydrogen fluoride

View the full list of 8 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (8 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
11-Bromopropane106-94-53,844 lbs0 lbs3,844 lbs
2Nickel7440-02-0409 lbs0 lbs884 lbs
3Chromium7440-47-3237 lbs0 lbs637 lbs
4Manganese7439-96-5162 lbs0 lbs280 lbs
5Hydrogen fluoride7664-39-3265 lbs0 lbs265 lbs
6Copper7440-50-8181 lbs0 lbs246 lbs
7Nitric acid7697-37-281 lbs0 lbs81 lbs
8Aluminum (fume or dust)7429-90-51 lbs0 lbs18 lbs

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