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
123 S 17TH ST LA PORTE 77571
Elevation
18.62 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: 8.62 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 85% 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)
2.07 million lbs
Extremely High
317.9x more than typical Houston property
≈ 104 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)
2.07 million lbs
Extremely High
430.1x 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)
171 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)2,074,320 lbs2,074,149 lbs171 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,541,956 lbs246,247 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 85% 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):

n-Hexane, Ethylene, Methanol, Ammonia, Hydroquinone

View the full list of 55 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (55 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,028,988 lbs0 lbs1,028,988 lbs
2Ethylene74-85-1427,145 lbs0 lbs427,145 lbs
3Methanol67-56-1182,403 lbs0 lbs182,403 lbs
4Ammonia7664-41-7106,624 lbs68 lbs106,692 lbs
5Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
6Propylene115-07-141,301 lbs0 lbs41,301 lbs
7Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
9Cumene98-82-831,165 lbs0 lbs31,165 lbs
10Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
11Xylene (mixed isomers)1330-20-716,881 lbs0 lbs16,881 lbs
12Propylene oxide75-56-916,766 lbs0 lbs16,766 lbs
13Acetaldehyde75-07-012,256 lbs0 lbs12,256 lbs
14Benzene71-43-210,536 lbs0 lbs10,536 lbs
15Chlorine7782-50-510,430 lbs0 lbs10,430 lbs
16Styrene100-42-58,897 lbs0 lbs8,897 lbs
17Toluene108-88-35,107 lbs0 lbs5,107 lbs
18Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
19Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
20Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
21Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
221,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
23Ethylene oxide75-21-82,222 lbs0 lbs2,222 lbs
24Mercury7439-97-60 lbs0 lbs2,200 lbs
25Phosgene75-44-51,958 lbs0 lbs1,958 lbs
26Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
27Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
28Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
29Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
30Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
31Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
32Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
33sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
34tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
35n-Butyl alcohol71-36-31,212 lbs0 lbs1,212 lbs
36Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
37Diphenylamine122-39-4997 lbs0 lbs997 lbs
381,2,4-Trimethylbenzene95-63-6971 lbs0 lbs971 lbs
39Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
40N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
41Manganese7439-96-5511 lbs0 lbs511 lbs
42Cyclohexane110-82-7418 lbs0 lbs418 lbs
43Dichloromethane75-09-2251 lbs0 lbs251 lbs
44Formaldehyde50-00-046 lbs102 lbs148 lbs
45Ethylbenzene100-41-494 lbs0 lbs94 lbs
46Ethylene glycol107-21-155 lbs0 lbs55 lbs
47Chloromethane74-87-351 lbs0 lbs51 lbs
48Chromium7440-47-345 lbs0 lbs45 lbs
49Naphthalene91-20-333 lbs0 lbs33 lbs
50Phthalic anhydride85-44-913 lbs0 lbs13 lbs
51Butyl acrylate141-32-25 lbs0 lbs5 lbs
52Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
53Certain glycol ethersN2303 lbs0 lbs3 lbs
54Maleic anhydride108-31-61 lbs0 lbs1 lbs
55Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Aluminum oxide (fibrous forms), Allyl alcohol, n-Hexane, Toluene

View the full list of 41 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (41 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-111,092 lbs0 lbs431,034 lbs
2Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs353,010 lbs
3Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
4n-Hexane110-54-3116,901 lbs0 lbs132,814 lbs
5Toluene108-88-3212 lbs0 lbs89,725 lbs
6Ethylene74-85-172,650 lbs0 lbs72,650 lbs
71,2,4-Trimethylbenzene95-63-674 lbs0 lbs43,988 lbs
8Xylene (mixed isomers)1330-20-7127 lbs0 lbs38,597 lbs
9Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
10Styrene100-42-5272 lbs0 lbs15,702 lbs
11tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
12Nonylphenol EthoxylatesN5350 lbs0 lbs11,809 lbs
13Propylene115-07-110,535 lbs0 lbs10,535 lbs
14Ammonia7664-41-78,692 lbs0 lbs9,344 lbs
15Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
16Vinyl acetate108-05-42,418 lbs0 lbs7,117 lbs
17Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
18Cumene98-82-82,616 lbs0 lbs5,324 lbs
19Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
20Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
21Naphthalene91-20-30 lbs0 lbs4,040 lbs
22Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
23sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
24Ethylene oxide75-21-8483 lbs0 lbs3,183 lbs
25Ethylbenzene100-41-44 lbs0 lbs2,630 lbs
26n-Butyl alcohol71-36-385 lbs0 lbs2,624 lbs
27Ethylene glycol107-21-13 lbs0 lbs1,147 lbs
28Acetaldehyde75-07-0494 lbs0 lbs1,132 lbs
29Benzene71-43-21,090 lbs0 lbs1,090 lbs
30Chlorine7782-50-5961 lbs0 lbs961 lbs
31Formaldehyde50-00-03 lbs0 lbs513 lbs
32Propylene oxide75-56-9431 lbs0 lbs431 lbs
33Maleic anhydride108-31-60 lbs0 lbs400 lbs
34Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
35Cyclohexane110-82-765 lbs0 lbs356 lbs
36Acrylic acid79-10-7186 lbs0 lbs192 lbs
37Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
38Diphenylamine122-39-4103 lbs0 lbs103 lbs
391,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
40Phosgene75-44-527 lbs0 lbs27 lbs
41Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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