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
4906 MISTY SHADOWS DR HOUSTON 77041
Building Size
1,986 sqft
Total structure area from HCAD building records.
Elevation
98.4 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: 88.4 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 64% 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)
105 thousand lbs
High
16.0x more than typical Houston property
≈ 5 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)
100 thousand lbs
High
20.7x 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)
5 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)104,609 lbs99,976 lbs4,633 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)144,873 lbs2,070 lbs492 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 64% 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):

Vinyl acetate, Zinc compounds, Nitric acid, Ammonia, Phenol

View the full list of 22 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (22 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Vinyl acetate108-05-462,144 lbs0 lbs62,144 lbs
2Zinc compoundsN98211,697 lbs4,471 lbs16,168 lbs
3Nitric acid7697-37-28,299 lbs0 lbs8,299 lbs
4Ammonia7664-41-76,249 lbs0 lbs6,249 lbs
5Phenol108-95-25,162 lbs0 lbs5,162 lbs
6Propylene115-07-11,755 lbs0 lbs1,755 lbs
7Antimony compoundsN0101,359 lbs0 lbs1,359 lbs
8DiisocyanatesN120688 lbs0 lbs688 lbs
9Manganese7439-96-5540 lbs85 lbs624 lbs
10Ethylene glycol107-21-1520 lbs0 lbs520 lbs
11Chromium7440-47-3345 lbs9 lbs353 lbs
12Nickel7440-02-0306 lbs36 lbs342 lbs
13Copper7440-50-8294 lbs10 lbs304 lbs
144,4'-Isopropylidenediphenol80-05-7286 lbs5 lbs291 lbs
15Formic acid64-18-6255 lbs0 lbs255 lbs
16Triglycidyl isocyanurate2451-62-943 lbs5 lbs48 lbs
17Lead compoundsN42017 lbs11 lbs28 lbs
18Antimony And Antimony CompoundsN01010 lbs0 lbs10 lbs
19Manganese And Manganese CompoundsN4505 lbs0 lbs5 lbs
20Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs4 lbs
21Lead And Lead CompoundsN4201 lbs1 lbs2 lbs
22Lead7439-92-11 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Zinc compounds, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Vinyl acetate, Triglycidyl isocyanurate, Lead compounds

View the full list of 15 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (15 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Zinc compoundsN982198 lbs481 lbs94,504 lbs
2Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs42,194 lbs
3Vinyl acetate108-05-4819 lbs0 lbs2,008 lbs
4Triglycidyl isocyanurate2451-62-912 lbs5 lbs1,229 lbs
5Lead compoundsN4200 lbs0 lbs1,190 lbs
6Antimony compoundsN0100 lbs0 lbs1,189 lbs
7Nitric acid7697-37-2754 lbs0 lbs754 lbs
8Chromium7440-47-311 lbs0 lbs531 lbs
9Copper7440-50-87 lbs0 lbs341 lbs
10Nickel7440-02-07 lbs0 lbs341 lbs
11Ammonia7664-41-7250 lbs0 lbs250 lbs
12Manganese7439-96-54 lbs0 lbs190 lbs
134,4'-Isopropylidenediphenol80-05-71 lbs5 lbs144 lbs
14DiisocyanatesN1207 lbs0 lbs7 lbs
15Lead And Lead CompoundsN4200 lbs1 lbs1 lbs

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