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
15711 S BRENTWOOD ST CHANNELVIEW 77530
Building Size
2,256 sqft
Total structure area from HCAD building records.
Elevation
25.64 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: 15.64 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 66% 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)
130 thousand lbs
High
19.9x more than typical Houston property
≈ 7 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)
130 thousand lbs
High
26.9x 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)
357 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)130,088 lbs129,731 lbs357 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)96,458 lbs13,708 lbs53 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 66% 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):

n-Hexane, Cyclohexane, Xylene (mixed isomers), Toluene, Benzene

View the full list of 26 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (26 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-328,628 lbs0 lbs31,071 lbs
2Cyclohexane110-82-717,867 lbs0 lbs23,451 lbs
3Xylene (mixed isomers)1330-20-715,892 lbs17 lbs23,373 lbs
4Toluene108-88-319,162 lbs92 lbs22,395 lbs
5Benzene71-43-211,261 lbs84 lbs12,917 lbs
61,3-Butadiene106-99-012,796 lbs0 lbs12,796 lbs
7Methanol67-56-15,968 lbs0 lbs5,968 lbs
8Ethylbenzene100-41-44,958 lbs4 lbs5,804 lbs
9Naphthalene91-20-32,635 lbs1 lbs4,801 lbs
101,2,4-Trimethylbenzene95-63-6934 lbs2 lbs3,728 lbs
11Styrene100-42-52,528 lbs0 lbs2,528 lbs
12Methyl tert-butyl ether1634-04-42,304 lbs0 lbs2,304 lbs
13Certain glycol ethersN2301,026 lbs0 lbs1,026 lbs
14Chromium7440-47-3817 lbs87 lbs904 lbs
15Hydrogen sulfide7783-06-4726 lbs0 lbs726 lbs
16n-Butyl alcohol71-36-3691 lbs0 lbs691 lbs
17Ethylene glycol107-21-1560 lbs0 lbs560 lbs
18Nickel7440-02-0315 lbs64 lbs379 lbs
19tert-Butyl alcohol75-65-0272 lbs0 lbs272 lbs
20Vinyl acetate108-05-4215 lbs0 lbs215 lbs
21Cumene98-82-8107 lbs0 lbs108 lbs
22Dicyclopentadiene77-73-634 lbs0 lbs34 lbs
23Methyl methacrylate80-62-613 lbs0 lbs13 lbs
24Tetrachloroethylene127-18-410 lbs0 lbs10 lbs
25Trichloroethylene79-01-610 lbs0 lbs10 lbs
26Lead7439-92-13 lbs7 lbs10 lbs

Top chemicals released near this property (2024 only):

Styrene, n-Hexane, Methyl methacrylate, Toluene, Xylene (mixed isomers)

View the full list of 18 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (18 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Styrene100-42-530 lbs0 lbs78,726 lbs
2n-Hexane110-54-34,110 lbs0 lbs4,110 lbs
3Methyl methacrylate80-62-61 lbs0 lbs3,658 lbs
4Toluene108-88-32,332 lbs0 lbs2,455 lbs
5Xylene (mixed isomers)1330-20-72,332 lbs0 lbs2,368 lbs
6Benzene71-43-21,563 lbs0 lbs1,645 lbs
7Cyclohexane110-82-71,189 lbs0 lbs1,244 lbs
8Naphthalene91-20-3419 lbs0 lbs448 lbs
91,3-Butadiene106-99-0433 lbs0 lbs433 lbs
10Methyl tert-butyl ether1634-04-4354 lbs0 lbs354 lbs
11Ethylbenzene100-41-4287 lbs0 lbs305 lbs
12Vinyl acetate108-05-4205 lbs0 lbs205 lbs
13Chromium7440-47-3136 lbs32 lbs167 lbs
14Methanol67-56-1115 lbs0 lbs115 lbs
15n-Butyl alcohol71-36-3108 lbs0 lbs108 lbs
16Nickel7440-02-036 lbs20 lbs57 lbs
17Dicyclopentadiene77-73-634 lbs0 lbs34 lbs
18Cumene98-82-825 lbs0 lbs27 lbs

Explore More Properties