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
4219 LURLENE ST HOUSTON 77017
Building Size
2,574 sqft
Total structure area from HCAD building records.
Elevation
25.35 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: 15.35 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 88% 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)
4.98 million lbs
Extremely High
763.3x more than typical Houston property
≈ 249 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)
4.87 million lbs
Extremely High
1010.1x 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)
109 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)4,979,828 lbs4,870,849 lbs108,979 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)356,851 lbs326,808 lbs15,443 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 88% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile (top 15% most polluted).

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

Styrene, Ammonia, Propylene, 1,3-Butadiene, Methyl tert-butyl ether

View the full list of 23 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (23 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Styrene100-42-51,723,771 lbs7,271 lbs1,731,042 lbs
2Ammonia7664-41-71,374,705 lbs29,897 lbs1,404,602 lbs
3Propylene115-07-1757,146 lbs0 lbs757,146 lbs
41,3-Butadiene106-99-0435,763 lbs1 lbs435,764 lbs
5Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
6Ethylene74-85-1167,323 lbs0 lbs167,323 lbs
7Methanol67-56-156,642 lbs39,325 lbs95,968 lbs
8n-Hexane110-54-328,807 lbs0 lbs28,807 lbs
9N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
10Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs21,954 lbs21,954 lbs
11Benzene71-43-216,922 lbs363 lbs17,285 lbs
12tert-Butyl alcohol75-65-015,263 lbs0 lbs15,263 lbs
13Sodium nitrite7632-00-00 lbs9,470 lbs9,470 lbs
14Xylene (mixed isomers)1330-20-72,947 lbs0 lbs2,947 lbs
15Toluene108-88-31,278 lbs69 lbs1,347 lbs
16Polycyclic aromatic compoundsN5903 lbs410 lbs413 lbs
17Ethylbenzene100-41-4204 lbs59 lbs263 lbs
18Naphthalene91-20-3146 lbs72 lbs218 lbs
19Chlorine7782-50-5120 lbs0 lbs120 lbs
20Isoprene78-79-560 lbs0 lbs60 lbs
21Boron trifluoride7637-07-236 lbs0 lbs36 lbs
22Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
23Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs

Top chemicals released near this property (2024 only):

Styrene, Ammonia, Methyl tert-butyl ether, 1,3-Butadiene, Propylene

View the full list of 20 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (20 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Styrene100-42-5130,675 lbs291 lbs130,967 lbs
2Ammonia7664-41-7101,750 lbs78 lbs101,827 lbs
3Methyl tert-butyl ether1634-04-418,336 lbs0 lbs31,624 lbs
41,3-Butadiene106-99-030,971 lbs0 lbs30,971 lbs
5Propylene115-07-124,891 lbs0 lbs24,891 lbs
6Methanol67-56-16,850 lbs14,541 lbs21,992 lbs
7Ethylene74-85-18,214 lbs0 lbs8,214 lbs
8N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,842 lbs
9Benzene71-43-21,100 lbs110 lbs1,670 lbs
10n-Hexane110-54-31,106 lbs0 lbs1,106 lbs
11tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
12Sodium nitrite7632-00-00 lbs371 lbs371 lbs
13Toluene108-88-3110 lbs4 lbs146 lbs
14Xylene (mixed isomers)1330-20-7124 lbs0 lbs134 lbs
15Polycyclic aromatic compoundsN5901 lbs40 lbs41 lbs
16Ethylbenzene100-41-45 lbs1 lbs12 lbs
17Naphthalene91-20-32 lbs7 lbs9 lbs
18Isoprene78-79-58 lbs0 lbs8 lbs
19Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs3 lbs
20Boron trifluoride7637-07-21 lbs0 lbs1 lbs

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