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
8230 STEDMAN ST 100 HOUSTON 77029
Elevation
43.65 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 33.65 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
High
Higher pollution than 76% 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)
521 thousand lbs
Very High
79.8x more than typical Houston property
≈ 26 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)
516 thousand lbs
Extremely High
107.0x 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)520,790 lbs515,875 lbs4,916 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)152,550 lbs90,679 lbs525 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 76% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile (top 25% most polluted).

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

Ammonia, n-Hexane, Zinc compounds, Toluene, Xylene (mixed isomers)

View the full list of 32 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (32 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7295,214 lbs0 lbs295,214 lbs
2n-Hexane110-54-3125,432 lbs0 lbs125,432 lbs
3Zinc compoundsN98224,232 lbs4,584 lbs28,816 lbs
4Toluene108-88-323,465 lbs0 lbs23,465 lbs
5Xylene (mixed isomers)1330-20-715,140 lbs0 lbs15,140 lbs
61,2,4-Trimethylbenzene95-63-68,773 lbs0 lbs8,773 lbs
7Hydrogen sulfide7783-06-46,912 lbs0 lbs6,912 lbs
8Manganese7439-96-54,730 lbs108 lbs4,839 lbs
9Methanol67-56-13,036 lbs0 lbs3,036 lbs
10Cyclohexane110-82-72,389 lbs0 lbs2,389 lbs
11Polycyclic aromatic compoundsN5901,893 lbs2 lbs1,902 lbs
12Ethylbenzene100-41-4917 lbs0 lbs918 lbs
13Ethylene glycol107-21-1856 lbs0 lbs856 lbs
14Propylene115-07-1810 lbs0 lbs810 lbs
15Lead7439-92-1373 lbs99 lbs472 lbs
16Certain glycol ethersN230402 lbs0 lbs402 lbs
17Chloroacetic acid79-11-8330 lbs0 lbs330 lbs
18Methyl methacrylate80-62-6265 lbs0 lbs265 lbs
19Benzo[g,h,i]perylene191-24-2236 lbs0 lbs236 lbs
20Naphthalene91-20-3184 lbs0 lbs185 lbs
21Styrene100-42-5162 lbs0 lbs163 lbs
22Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs67 lbs67 lbs
23Lead compoundsN42038 lbs22 lbs60 lbs
24Nickel7440-02-036 lbs4 lbs39 lbs
25Nitric acid7697-37-230 lbs0 lbs30 lbs
26Barium And Barium CompoundsN0400 lbs16 lbs16 lbs
27Mercury7439-97-612 lbs0 lbs12 lbs
28Chromium7440-47-33 lbs7 lbs10 lbs
29Copper7440-50-80 lbs6 lbs6 lbs
30Lead And Lead CompoundsN4203 lbs1 lbs3 lbs
31Copper compoundsN1001 lbs1 lbs2 lbs
32Dioxin and dioxin-like compoundsN1501 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Zinc compounds, Ammonia, n-Hexane, Xylene (mixed isomers), Toluene

View the full list of 13 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (13 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Zinc compoundsN9823,493 lbs500 lbs61,739 lbs
2Ammonia7664-41-749,429 lbs0 lbs52,907 lbs
3n-Hexane110-54-312,290 lbs0 lbs12,290 lbs
4Xylene (mixed isomers)1330-20-711,930 lbs0 lbs11,930 lbs
5Toluene108-88-311,886 lbs0 lbs11,886 lbs
61,2,4-Trimethylbenzene95-63-61,210 lbs0 lbs1,210 lbs
7Lead7439-92-1243 lbs3 lbs250 lbs
8Polycyclic aromatic compoundsN590152 lbs0 lbs180 lbs
9Lead compoundsN4205 lbs3 lbs60 lbs
10Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs19 lbs53 lbs
11Benzo[g,h,i]perylene191-24-221 lbs0 lbs24 lbs
12Methyl methacrylate80-62-610 lbs0 lbs10 lbs
13Chloroacetic acid79-11-810 lbs0 lbs10 lbs

Explore More Properties