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
1605 STRAWN RD HOUSTON 77039
Building Size
3,496 sqft
Total structure area from HCAD building records.
Elevation
69.21 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: 59.21 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)
1.14 million lbs
Extremely High
174.8x more than typical Houston property
≈ 57 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)
1.14 million lbs
Extremely High
236.5x 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)
147 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)1,140,486 lbs1,140,339 lbs147 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)80,176 lbs79,647 lbs9 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):

Styrene, Xylene (mixed isomers), Diisocyanates, Toluene, n-Hexane

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)
1Styrene100-42-51,020,632 lbs0 lbs1,020,632 lbs
2Xylene (mixed isomers)1330-20-795,170 lbs20 lbs95,190 lbs
3DiisocyanatesN1206,089 lbs0 lbs6,089 lbs
4Toluene108-88-35,975 lbs28 lbs6,003 lbs
5n-Hexane110-54-32,967 lbs8 lbs2,975 lbs
6Aluminum (fume or dust)7429-90-52,500 lbs0 lbs2,500 lbs
7Manganese7439-96-51,972 lbs0 lbs1,972 lbs
8Ethylbenzene100-41-41,716 lbs5 lbs1,721 lbs
9Benzene71-43-21,010 lbs1 lbs1,011 lbs
101,2,4-Trimethylbenzene95-63-61,002 lbs7 lbs1,009 lbs
11Chromium7440-47-3430 lbs3 lbs433 lbs
12Dichloromethane75-09-2407 lbs0 lbs407 lbs
13Nickel7440-02-0345 lbs31 lbs376 lbs
14Naphthalene91-20-3107 lbs0 lbs107 lbs
15Lead compoundsN4200 lbs25 lbs25 lbs
16Nickel compoundsN4956 lbs11 lbs18 lbs
17Chromium compounds (except for chromite ore mined in the Transvaal Region)N0903 lbs8 lbs11 lbs
18Certain glycol ethersN2308 lbs0 lbs8 lbs

Top chemicals released near this property (2024 only):

Styrene, Diisocyanates, Aluminum (fume or dust), Toluene, Xylene (mixed isomers)

View the full list of 9 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (9 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Styrene100-42-578,945 lbs0 lbs78,945 lbs
2DiisocyanatesN120250 lbs0 lbs750 lbs
3Aluminum (fume or dust)7429-90-5250 lbs0 lbs250 lbs
4Toluene108-88-392 lbs0 lbs92 lbs
5Xylene (mixed isomers)1330-20-752 lbs0 lbs52 lbs
6Nickel7440-02-010 lbs6 lbs35 lbs
7Manganese7439-96-529 lbs0 lbs29 lbs
8Chromium7440-47-313 lbs3 lbs17 lbs
9Certain glycol ethersN2306 lbs0 lbs6 lbs

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