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
402 N 16TH ST LA PORTE 77571
Elevation
19.04 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 9.04 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 82% 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)
1.22 million lbs
Extremely High
187.2x more than typical Houston property
≈ 61 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)
1.22 million lbs
Extremely High
253.3x 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)
94 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)1,221,570 lbs1,221,476 lbs94 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)812,835 lbs96,607 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 82% 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):

Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Formaldehyde, Propylene

View the full list of 45 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (45 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-1439,205 lbs0 lbs439,205 lbs
2Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9216,585 lbs0 lbs216,585 lbs
3Ammonia7664-41-7105,663 lbs0 lbs105,663 lbs
4Formaldehyde50-00-063,808 lbs0 lbs63,808 lbs
5Propylene115-07-149,954 lbs0 lbs49,954 lbs
6n-Butyl alcohol71-36-349,206 lbs0 lbs49,206 lbs
7Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
8Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
10Cumene98-82-831,096 lbs0 lbs31,096 lbs
11Ethylene74-85-129,857 lbs0 lbs29,857 lbs
12Copper compoundsN1001 lbs84 lbs29,084 lbs
13Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
14Hydrogen fluoride7664-39-317,939 lbs0 lbs17,939 lbs
15Acetaldehyde75-07-012,256 lbs0 lbs12,256 lbs
16Chlorine7782-50-511,230 lbs0 lbs11,230 lbs
17Benzene71-43-210,536 lbs0 lbs10,536 lbs
18Xylene (mixed isomers)1330-20-710,381 lbs0 lbs10,381 lbs
19Styrene100-42-57,344 lbs0 lbs7,344 lbs
20Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
21Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
22Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
23Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
24Mercury7439-97-60 lbs0 lbs2,200 lbs
25Phosgene75-44-51,958 lbs0 lbs1,958 lbs
26Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
27Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
28Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
29Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
30Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
31Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
32sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
33Ethylene oxide75-21-81,431 lbs0 lbs1,431 lbs
34Toluene108-88-31,261 lbs0 lbs1,261 lbs
35Diphenylamine122-39-4997 lbs0 lbs997 lbs
36N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
37Manganese7439-96-5511 lbs0 lbs511 lbs
38Propylene oxide75-56-9371 lbs0 lbs371 lbs
39Dichloromethane75-09-2251 lbs0 lbs251 lbs
40Chromium7440-47-345 lbs0 lbs45 lbs
41Ethylene glycol107-21-114 lbs0 lbs14 lbs
42Nickel compoundsN4954 lbs3 lbs8 lbs
43Copper And Copper CompoundsN1000 lbs6 lbs6 lbs
44Butyl acrylate141-32-25 lbs0 lbs5 lbs
45Nickel And Nickel CompoundsN4952 lbs1 lbs3 lbs

Top chemicals released near this property (2024 only):

Aluminum oxide (fibrous forms), Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chloroacetic acid, Propylene

View the full list of 30 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (30 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs353,010 lbs
2Methanol67-56-116,034 lbs0 lbs340,606 lbs
3Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-929,545 lbs0 lbs29,545 lbs
4Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
5Propylene115-07-110,535 lbs0 lbs10,535 lbs
6Ammonia7664-41-78,690 lbs0 lbs8,916 lbs
7Vinyl acetate108-05-42,418 lbs0 lbs7,117 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
9Formaldehyde50-00-03,559 lbs0 lbs5,799 lbs
10Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
11Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
12Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
13sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
14Cumene98-82-82,611 lbs0 lbs2,611 lbs
15n-Butyl alcohol71-36-375 lbs0 lbs2,529 lbs
16Hydrogen fluoride7664-39-31,738 lbs0 lbs1,738 lbs
17Ethylene74-85-11,329 lbs0 lbs1,329 lbs
18Acetaldehyde75-07-0494 lbs0 lbs1,132 lbs
19Chlorine7782-50-51,121 lbs0 lbs1,121 lbs
20Benzene71-43-21,090 lbs0 lbs1,090 lbs
21Ethylene oxide75-21-8420 lbs0 lbs420 lbs
22Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
23Acrylic acid79-10-7186 lbs0 lbs192 lbs
24Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
25Styrene100-42-5116 lbs0 lbs116 lbs
26Diphenylamine122-39-4103 lbs0 lbs103 lbs
27Propylene oxide75-56-960 lbs0 lbs60 lbs
28Phosgene75-44-527 lbs0 lbs27 lbs
29Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
30Ethylene glycol107-21-13 lbs0 lbs9 lbs

Explore More Properties