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
8627 GLENBRAE ST HOUSTON 77061
Building Size
1,845 sqft
Total structure area from HCAD building records.
Elevation
34.08 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: 24.08 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 81% 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)
1.07 million lbs
Extremely High
163.5x more than typical Houston property
≈ 53 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)
1.02 million lbs
Extremely High
212.2x 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)
43 thousand lbs
Extremely 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)1,066,641 lbs1,023,211 lbs43,431 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)88,401 lbs50,354 lbs14,546 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 81% 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, Methyl tert-butyl ether, 1,3-Butadiene, Methanol, Toluene

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)
1Ammonia7664-41-7279,379 lbs3,674 lbs283,053 lbs
2Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
31,3-Butadiene106-99-0255,578 lbs0 lbs255,578 lbs
4Methanol67-56-155,467 lbs39,325 lbs94,793 lbs
5Toluene108-88-363,489 lbs0 lbs63,489 lbs
6N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
7N-Methyl-2-pyrrolidone872-50-417,750 lbs0 lbs17,750 lbs
8n-Hexane110-54-316,000 lbs0 lbs16,000 lbs
9tert-Butyl alcohol75-65-015,263 lbs0 lbs15,263 lbs
10Propylene115-07-114,205 lbs0 lbs14,205 lbs
11Nitric acid7697-37-24,015 lbs0 lbs4,015 lbs
12Ethylene74-85-12,621 lbs0 lbs2,621 lbs
13Copper7440-50-82,452 lbs0 lbs2,452 lbs
14Nickel7440-02-02,057 lbs0 lbs2,057 lbs
15Nickel compoundsN4951,754 lbs156 lbs1,910 lbs
16Chromium7440-47-31,793 lbs0 lbs1,793 lbs
17Nickel And Nickel CompoundsN4951,505 lbs13 lbs1,518 lbs
18Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs173 lbs173 lbs
19Polycyclic aromatic compoundsN59084 lbs0 lbs162 lbs
20Manganese7439-96-562 lbs0 lbs62 lbs
21Boron trifluoride7637-07-236 lbs0 lbs36 lbs
22Lead7439-92-16 lbs0 lbs6 lbs

Top chemicals released near this property (2024 only):

Methyl tert-butyl ether, Methanol, 1,3-Butadiene, Copper, Nickel And Nickel Compounds

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)
1Methyl tert-butyl ether1634-04-418,336 lbs0 lbs31,624 lbs
2Methanol67-56-16,850 lbs14,541 lbs21,992 lbs
31,3-Butadiene106-99-018,236 lbs0 lbs18,236 lbs
4Copper7440-50-8264 lbs0 lbs5,330 lbs
5Nickel And Nickel CompoundsN495500 lbs5 lbs2,858 lbs
6N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,842 lbs
7Toluene108-88-31,500 lbs0 lbs1,500 lbs
8Nitric acid7697-37-2500 lbs0 lbs1,183 lbs
9Propylene115-07-11,091 lbs0 lbs1,091 lbs
10tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
11Nickel7440-02-022 lbs0 lbs788 lbs
12Chromium7440-47-314 lbs0 lbs432 lbs
13Ethylene74-85-1364 lbs0 lbs364 lbs
14Manganese7439-96-57 lbs0 lbs97 lbs
15Lead7439-92-11 lbs0 lbs23 lbs
16Polycyclic aromatic compoundsN5906 lbs0 lbs18 lbs
17Boron trifluoride7637-07-21 lbs0 lbs1 lbs
18Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1 lbs1 lbs

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