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
723 CHEAM CIR HOUSTON 77015
Building Size
2,365 sqft
Total structure area from HCAD building records.
Elevation
28.62 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: 18.62 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 62% 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)
72 thousand lbs
High
11.0x more than typical Houston property
≈ 4 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)
72 thousand lbs
High
14.9x 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)
14 lbs
Above Typical
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)72,054 lbs72,040 lbs14 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)3,480 lbs2,893 lbs3 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 62% 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):

Styrene, Xylene (mixed isomers), Toluene, Methanol, Ethylbenzene

View the full list of 21 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (21 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Styrene100-42-526,310 lbs0 lbs26,310 lbs
2Xylene (mixed isomers)1330-20-714,995 lbs0 lbs14,995 lbs
3Toluene108-88-36,758 lbs0 lbs7,334 lbs
4Methanol67-56-16,541 lbs0 lbs6,541 lbs
5Ethylbenzene100-41-44,169 lbs0 lbs4,169 lbs
6Ammonia7664-41-73,125 lbs0 lbs3,125 lbs
7Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,066 lbs0 lbs3,066 lbs
8Cyclohexane110-82-71,732 lbs0 lbs1,732 lbs
9Chlorine7782-50-51,412 lbs0 lbs1,412 lbs
10Formic acid64-18-61,012 lbs0 lbs1,012 lbs
11Certain glycol ethersN230903 lbs0 lbs903 lbs
121,2,4-Trimethylbenzene95-63-6863 lbs0 lbs863 lbs
13Ethylene glycol107-21-1398 lbs0 lbs398 lbs
14Nickel7440-02-0376 lbs1 lbs376 lbs
15Phthalic anhydride85-44-9184 lbs0 lbs184 lbs
16Maleic anhydride108-31-6139 lbs0 lbs139 lbs
17Nitric acid7697-37-228 lbs0 lbs28 lbs
18Naphthalene91-20-319 lbs0 lbs19 lbs
19Nonylphenol EthoxylatesN53510 lbs0 lbs10 lbs
20Lead And Lead CompoundsN4200 lbs7 lbs7 lbs
21Lead compoundsN4200 lbs6 lbs7 lbs

Top chemicals released near this property (2024 only):

Methanol, Toluene, Cyclohexane, Certain glycol ethers, Formic acid

View the full list of 7 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (7 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-11,343 lbs0 lbs1,343 lbs
2Toluene108-88-3314 lbs0 lbs890 lbs
3Cyclohexane110-82-7759 lbs0 lbs759 lbs
4Certain glycol ethersN230214 lbs0 lbs214 lbs
5Formic acid64-18-6173 lbs0 lbs173 lbs
6Nickel7440-02-090 lbs0 lbs98 lbs
7Lead compoundsN4200 lbs3 lbs3 lbs

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