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
5207 ROTAN DR HOUSTON 77032
Building Size
1,765 sqft
Total structure area from HCAD building records.
Elevation
67.32 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: 57.32 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 50% 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)
7 thousand lbs
Typical
1.0x more than typical Houston property
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)
5 thousand lbs
Typical
1.1x 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)
1 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)6,534 lbs5,258 lbs1,276 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)256 lbs142 lbs75 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 50% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 50-59th percentile (average pollution).

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

Nickel, Ethylene glycol, Chromium, Manganese, Copper

View the full list of 9 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (9 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nickel7440-02-02,175 lbs165 lbs2,370 lbs
2Ethylene glycol107-21-11,609 lbs250 lbs1,859 lbs
3Chromium7440-47-3786 lbs261 lbs1,082 lbs
4Manganese7439-96-5570 lbs426 lbs1,027 lbs
5Copper7440-50-854 lbs92 lbs152 lbs
6Aluminum oxide (fibrous forms)1344-28-15 lbs68 lbs73 lbs
7Chromium compounds (except for chromite ore mined in the Transvaal Region)N09042 lbs1 lbs43 lbs
8Manganese compoundsN45016 lbs13 lbs28 lbs
9Lead compoundsN4201 lbs1 lbs2 lbs

Top chemicals released near this property (2024 only):

Aluminum oxide (fibrous forms), Ethylene glycol, Nickel, Manganese, Chromium compounds (except for chromite ore mined in the Transvaal Region)

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)
1Aluminum oxide (fibrous forms)1344-28-13 lbs68 lbs70 lbs
2Ethylene glycol107-21-159 lbs0 lbs59 lbs
3Nickel7440-02-022 lbs0 lbs36 lbs
4Manganese7439-96-520 lbs0 lbs30 lbs
5Chromium compounds (except for chromite ore mined in the Transvaal Region)N09020 lbs1 lbs21 lbs
6Chromium7440-47-39 lbs0 lbs17 lbs
7Manganese compoundsN4507 lbs7 lbs14 lbs
8Copper7440-50-82 lbs0 lbs9 lbs

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