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
3014 QUAIL HOLLOW CIR BAYTOWN 77521
Building Size
1,881 sqft
Total structure area from HCAD building records.
Elevation
25.01 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: 15.01 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 75% 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)
464 thousand lbs
Very High
71.1x more than typical Houston property
≈ 23 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)
464 thousand lbs
Very High
96.2x 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)
35 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)463,782 lbs463,747 lbs35 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)71,660 lbs45,797 lbs0 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 75% 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):

Cyclohexane, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), 1,3-Butadiene, n-Hexane, Naphthalene

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)
1Cyclohexane110-82-7224,241 lbs10 lbs224,251 lbs
2Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-971,365 lbs0 lbs71,365 lbs
31,3-Butadiene106-99-060,572 lbs5 lbs60,577 lbs
4n-Hexane110-54-334,842 lbs10 lbs34,852 lbs
5Naphthalene91-20-325,104 lbs0 lbs25,104 lbs
6Styrene100-42-517,649 lbs10 lbs17,660 lbs
7Propylene115-07-116,018 lbs0 lbs16,018 lbs
8Ammonia7664-41-76,897 lbs0 lbs6,897 lbs
9Toluene108-88-32,071 lbs0 lbs2,071 lbs
10Hydrogen sulfide7783-06-41,665 lbs0 lbs1,665 lbs
11Isoprene78-79-51,217 lbs0 lbs1,217 lbs
12Ethylbenzene100-41-4897 lbs0 lbs897 lbs
13Benzene71-43-2604 lbs0 lbs604 lbs
14Dicyclopentadiene77-73-6146 lbs0 lbs146 lbs
15Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0140 lbs0 lbs140 lbs
16Xylene (mixed isomers)1330-20-7132 lbs0 lbs132 lbs
17Vanadium compoundsN770102 lbs0 lbs102 lbs
18Ethylene glycol107-21-145 lbs0 lbs45 lbs
19Biphenyl92-52-420 lbs0 lbs20 lbs
20Carbon disulfide75-15-014 lbs0 lbs14 lbs
21Anthracene120-12-72 lbs0 lbs2 lbs
22Lead7439-92-12 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

Cyclohexane, Vanadium compounds, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Naphthalene, 1,3-Butadiene

View the full list of 17 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (17 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Cyclohexane110-82-719,632 lbs0 lbs19,632 lbs
2Vanadium compoundsN7701 lbs0 lbs15,801 lbs
3Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-912,133 lbs0 lbs12,133 lbs
4Naphthalene91-20-3859 lbs0 lbs10,405 lbs
51,3-Butadiene106-99-04,654 lbs0 lbs4,654 lbs
6n-Hexane110-54-33,532 lbs0 lbs3,532 lbs
7Styrene100-42-52,073 lbs0 lbs2,073 lbs
8Isoprene78-79-51,197 lbs0 lbs1,197 lbs
9Benzene71-43-244 lbs0 lbs546 lbs
10Propylene115-07-1464 lbs0 lbs464 lbs
11Ammonia7664-41-7447 lbs0 lbs447 lbs
12Toluene108-88-3287 lbs0 lbs302 lbs
13Hydrogen sulfide7783-06-4296 lbs0 lbs296 lbs
14Ethylbenzene100-41-4120 lbs0 lbs120 lbs
15Xylene (mixed isomers)1330-20-729 lbs0 lbs29 lbs
16Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-025 lbs0 lbs25 lbs
17Ethylene glycol107-21-15 lbs0 lbs5 lbs

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