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
1328 HIGHWAY 146 S LA PORTE 77571
Elevation
14.83 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: 4.83 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 87% 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)
3.69 million lbs
Extremely High
565.4x more than typical Houston property
≈ 184 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)
3.68 million lbs
Extremely High
763.7x 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)
6 thousand lbs
Very 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)3,688,794 lbs3,682,935 lbs5,860 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,153,030 lbs338,979 lbs623 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 87% 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, Toluene, Ammonia

View the full list of 68 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (68 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,028,988 lbs0 lbs1,028,988 lbs
2Ethylene74-85-1743,892 lbs0 lbs743,892 lbs
3Methanol67-56-1445,834 lbs55 lbs445,889 lbs
4Toluene108-88-3430,277 lbs0 lbs430,277 lbs
5Ammonia7664-41-7311,322 lbs68 lbs311,390 lbs
6Vinyl acetate108-05-4139,491 lbs0 lbs139,491 lbs
7Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
8n-Butyl alcohol71-36-355,641 lbs0 lbs55,641 lbs
9Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
10Propylene115-07-136,801 lbs0 lbs36,801 lbs
11Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
12Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-035,668 lbs0 lbs35,668 lbs
13Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
14Xylene (mixed isomers)1330-20-731,523 lbs0 lbs31,523 lbs
15Cumene98-82-831,165 lbs0 lbs31,165 lbs
16Phenol108-95-230,497 lbs0 lbs30,497 lbs
17Molybdenum trioxide1313-27-527,245 lbs3,165 lbs30,410 lbs
18Propylene oxide75-56-916,766 lbs0 lbs16,766 lbs
19Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
20Styrene100-42-513,938 lbs0 lbs13,938 lbs
21Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
22Nickel compoundsN4959,885 lbs1,149 lbs11,034 lbs
23Benzene71-43-210,536 lbs0 lbs10,536 lbs
24Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
25Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
26Cobalt compoundsN0963,961 lbs866 lbs4,827 lbs
27Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
28Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
29Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
30Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
31Formaldehyde50-00-02,738 lbs102 lbs2,840 lbs
321,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
33Ethylene oxide75-21-82,222 lbs0 lbs2,222 lbs
34Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
35Phosgene75-44-51,958 lbs0 lbs1,958 lbs
36Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
37Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
38Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
39Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
40Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
41Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
42sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
43Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
44tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
45Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
461,2,4-Trimethylbenzene95-63-61,041 lbs0 lbs1,041 lbs
47Maleic anhydride108-31-6966 lbs0 lbs966 lbs
48Nickel And Nickel CompoundsN495702 lbs21 lbs723 lbs
49Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
50N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
51Ethylene glycol107-21-1528 lbs0 lbs528 lbs
52Manganese7439-96-5511 lbs0 lbs511 lbs
53Hydrazine302-01-2437 lbs0 lbs437 lbs
54Cyclohexane110-82-7418 lbs0 lbs418 lbs
55Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
56Cobalt And Cobalt CompoundsN096300 lbs5 lbs305 lbs
57Dichloromethane75-09-2251 lbs0 lbs251 lbs
58Copper compoundsN100132 lbs6 lbs138 lbs
59Naphthalene91-20-396 lbs0 lbs96 lbs
60Zinc compoundsN98235 lbs33 lbs68 lbs
61Chloromethane74-87-351 lbs0 lbs51 lbs
62Antimony compoundsN01020 lbs15 lbs35 lbs
63Phthalic anhydride85-44-913 lbs0 lbs13 lbs
64Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
65Butyl acrylate141-32-25 lbs0 lbs5 lbs
66Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
67Certain glycol ethersN2303 lbs0 lbs3 lbs
68Boron trifluoride7637-07-21 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, n-Hexane, Vinyl acetate, Toluene

View the full list of 50 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (50 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-126,279 lbs5 lbs985,733 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3n-Hexane110-54-3116,901 lbs0 lbs132,814 lbs
4Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
5Toluene108-88-314,259 lbs0 lbs116,569 lbs
6Ethylene74-85-196,034 lbs0 lbs96,034 lbs
7Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
8Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
91,2,4-Trimethylbenzene95-63-699 lbs0 lbs44,013 lbs
10Xylene (mixed isomers)1330-20-7723 lbs0 lbs39,275 lbs
11Molybdenum trioxide1313-27-52,612 lbs474 lbs33,276 lbs
12Ammonia7664-41-725,260 lbs0 lbs25,912 lbs
13Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
14Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
15Styrene100-42-5530 lbs0 lbs15,960 lbs
16tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
17Nonylphenol EthoxylatesN5350 lbs0 lbs11,809 lbs
18Propylene115-07-110,035 lbs0 lbs10,035 lbs
19Nickel compoundsN4951,017 lbs108 lbs7,851 lbs
20Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
21Phenol108-95-21,875 lbs0 lbs6,506 lbs
22Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,374 lbs0 lbs6,374 lbs
23Cumene98-82-82,616 lbs0 lbs5,324 lbs
24Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
25Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
26n-Butyl alcohol71-36-31,017 lbs0 lbs4,633 lbs
27Naphthalene91-20-312 lbs0 lbs4,411 lbs
28Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
29Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
30sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
31Ethylene oxide75-21-8483 lbs0 lbs3,183 lbs
32Ethylbenzene100-41-4275 lbs0 lbs2,913 lbs
33Cobalt compoundsN096455 lbs36 lbs2,816 lbs
34Ethylene glycol107-21-115 lbs0 lbs1,159 lbs
35Benzene71-43-21,090 lbs0 lbs1,090 lbs
36Chlorine7782-50-5961 lbs0 lbs961 lbs
37Formaldehyde50-00-0154 lbs0 lbs667 lbs
38Maleic anhydride108-31-6178 lbs0 lbs578 lbs
39Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
40Propylene oxide75-56-9431 lbs0 lbs431 lbs
41Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
42Cyclohexane110-82-765 lbs0 lbs356 lbs
43Nitric acid7697-37-2219 lbs0 lbs219 lbs
44Acrylic acid79-10-7186 lbs0 lbs192 lbs
45Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
461,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
47Hydrazine302-01-239 lbs0 lbs39 lbs
48Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
49Phosgene75-44-527 lbs0 lbs27 lbs
50Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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