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
605 S 4TH ST LA PORTE 77571
Building Size
3,190 sqft
Total structure area from HCAD building records.
Elevation
18.51 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: 8.51 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 77% 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)
591 thousand lbs
Very High
90.6x more than typical Houston property
≈ 30 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)
591 thousand lbs
Extremely High
122.6x 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)
1 lbs
Low
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)591,125 lbs591,125 lbs1 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)416,339 lbs55,123 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 77% 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):

Methanol, Ammonia, Hydroquinone, Propylene, Methyl isobutyl ketone

View the full list of 38 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (38 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-1177,343 lbs0 lbs177,343 lbs
2Ammonia7664-41-7105,663 lbs0 lbs105,663 lbs
3Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
4Propylene115-07-136,801 lbs0 lbs36,801 lbs
5Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
6Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
7Cumene98-82-831,096 lbs0 lbs31,096 lbs
8Ethylene74-85-122,857 lbs0 lbs22,857 lbs
9Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
10Acetaldehyde75-07-012,256 lbs0 lbs12,256 lbs
11Benzene71-43-210,536 lbs0 lbs10,536 lbs
12Chlorine7782-50-510,430 lbs0 lbs10,430 lbs
13Xylene (mixed isomers)1330-20-710,381 lbs0 lbs10,381 lbs
14Styrene100-42-57,344 lbs0 lbs7,344 lbs
15Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
16Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
17Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
18Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
19Phosgene75-44-51,958 lbs0 lbs1,958 lbs
20Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
21Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
22Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
23Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
24Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
25sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
26Ethylene oxide75-21-81,431 lbs0 lbs1,431 lbs
27Toluene108-88-31,261 lbs0 lbs1,261 lbs
28n-Butyl alcohol71-36-31,164 lbs0 lbs1,164 lbs
29Diphenylamine122-39-4997 lbs0 lbs997 lbs
30Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
31N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
32Manganese7439-96-5511 lbs0 lbs511 lbs
33Propylene oxide75-56-9371 lbs0 lbs371 lbs
34Dichloromethane75-09-2251 lbs0 lbs251 lbs
35Chromium7440-47-345 lbs0 lbs45 lbs
36Ethylene glycol107-21-114 lbs0 lbs14 lbs
37Butyl acrylate141-32-25 lbs0 lbs5 lbs
38Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Chloroacetic acid, Propylene, Ammonia, Vinyl acetate

View the full list of 26 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (26 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-110,953 lbs0 lbs335,512 lbs
2Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
3Propylene115-07-110,035 lbs0 lbs10,035 lbs
4Ammonia7664-41-78,690 lbs0 lbs8,916 lbs
5Vinyl acetate108-05-42,418 lbs0 lbs7,117 lbs
6Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
7Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
8Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
9Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
10sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
11Cumene98-82-82,611 lbs0 lbs2,611 lbs
12n-Butyl alcohol71-36-375 lbs0 lbs2,529 lbs
13Acetaldehyde75-07-0494 lbs0 lbs1,132 lbs
14Benzene71-43-21,090 lbs0 lbs1,090 lbs
15Chlorine7782-50-5961 lbs0 lbs961 lbs
16Ethylene74-85-1679 lbs0 lbs679 lbs
17Ethylene oxide75-21-8420 lbs0 lbs420 lbs
18Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
19Acrylic acid79-10-7186 lbs0 lbs192 lbs
20Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
21Styrene100-42-5116 lbs0 lbs116 lbs
22Diphenylamine122-39-4103 lbs0 lbs103 lbs
23Propylene oxide75-56-960 lbs0 lbs60 lbs
24Phosgene75-44-527 lbs0 lbs27 lbs
25Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
26Ethylene glycol107-21-13 lbs0 lbs9 lbs

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