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
8617 EMMOTT RD HOUSTON 77040
Building Size
2,942 sqft
Total structure area from HCAD building records.
Elevation
91.15 ft
Height above sea level from USGS data.
FEMA Flood Zone
AO
High Risk - Sheet flow flooding
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: 81.15 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
Low
Lower pollution than 52% 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)
3 thousand lbs
Below Typical
2.1x less 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)
3 thousand lbs
Typical
1.6x less 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)
101 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)3,114 lbs3,013 lbs101 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,541 lbs88 lbs6 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%
Lower pollution than 52% 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):

Propylene, Manganese, Zinc compounds, Chromium, Formic acid

View the full list of 12 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (12 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Propylene115-07-1985 lbs0 lbs985 lbs
2Manganese7439-96-5588 lbs0 lbs588 lbs
3Zinc compoundsN982491 lbs0 lbs491 lbs
4Chromium7440-47-3448 lbs0 lbs448 lbs
5Formic acid64-18-6255 lbs0 lbs255 lbs
6Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N04022 lbs98 lbs232 lbs
7Nickel7440-02-0119 lbs0 lbs119 lbs
8Copper7440-50-849 lbs0 lbs49 lbs
9Lead compoundsN42021 lbs3 lbs29 lbs
10Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51118 lbs0 lbs18 lbs
11Manganese compoundsN45013 lbs0 lbs13 lbs
12Mercury compoundsN4584 lbs0 lbs4 lbs

Top chemicals released near this property (2024 only):

Chromium, Nickel, Copper, Manganese, Barium compounds (except for barium sulfate (CAS No. 7727-43-7))

View the full list of 6 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (6 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Chromium7440-47-330 lbs0 lbs555 lbs
2Nickel7440-02-016 lbs0 lbs355 lbs
3Copper7440-50-811 lbs0 lbs345 lbs
4Manganese7439-96-520 lbs0 lbs206 lbs
5Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0406 lbs6 lbs72 lbs
6Lead compoundsN4204 lbs0 lbs8 lbs

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