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
1903 W D ST LA PORTE 77571
Elevation
21.28 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: 11.28 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 86% 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)
2.86 million lbs
Extremely High
438.0x more than typical Houston property
≈ 143 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)
2.85 million lbs
Extremely High
591.5x 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)
5 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)2,857,743 lbs2,852,361 lbs5,382 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,870,029 lbs272,438 lbs618 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 86% 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, Toluene, Ethylene, Methanol, Ammonia

View the full list of 66 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (66 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,028,988 lbs0 lbs1,028,988 lbs
2Toluene108-88-3430,277 lbs0 lbs430,277 lbs
3Ethylene74-85-1420,145 lbs0 lbs420,145 lbs
4Methanol67-56-1268,476 lbs0 lbs268,476 lbs
5Ammonia7664-41-7106,624 lbs68 lbs106,692 lbs
6Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
7n-Butyl alcohol71-36-355,641 lbs0 lbs55,641 lbs
8Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
9Propylene115-07-136,801 lbs0 lbs36,801 lbs
10Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
11Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
12Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
13Xylene (mixed isomers)1330-20-731,523 lbs0 lbs31,523 lbs
14Cumene98-82-831,165 lbs0 lbs31,165 lbs
15Phenol108-95-230,497 lbs0 lbs30,497 lbs
16Molybdenum trioxide1313-27-527,245 lbs3,165 lbs30,410 lbs
17Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
18Propylene oxide75-56-916,766 lbs0 lbs16,766 lbs
19Styrene100-42-513,938 lbs0 lbs13,938 lbs
20Acetaldehyde75-07-012,256 lbs0 lbs12,256 lbs
21Nickel compoundsN4959,885 lbs1,149 lbs11,034 lbs
22Benzene71-43-210,536 lbs0 lbs10,536 lbs
23Chlorine7782-50-510,430 lbs0 lbs10,430 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
38Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
39Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
40Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
41Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
42Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
43sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 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
51Manganese7439-96-5511 lbs0 lbs511 lbs
52Hydrazine302-01-2437 lbs0 lbs437 lbs
53Cyclohexane110-82-7418 lbs0 lbs418 lbs
54Cobalt And Cobalt CompoundsN096300 lbs5 lbs305 lbs
55Dichloromethane75-09-2251 lbs0 lbs251 lbs
56Copper compoundsN100132 lbs6 lbs138 lbs
57Naphthalene91-20-396 lbs0 lbs96 lbs
58Ethylene glycol107-21-155 lbs0 lbs55 lbs
59Chloromethane74-87-351 lbs0 lbs51 lbs
60Chromium7440-47-345 lbs0 lbs45 lbs
61Nitric acid7697-37-214 lbs0 lbs14 lbs
62Phthalic anhydride85-44-913 lbs0 lbs13 lbs
63Butyl acrylate141-32-25 lbs0 lbs5 lbs
64Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
65Certain glycol ethersN2303 lbs0 lbs3 lbs
66Boron trifluoride7637-07-21 lbs0 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 49 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (49 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-112,137 lbs0 lbs534,759 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
5Toluene108-88-314,259 lbs0 lbs116,569 lbs
6Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
7Ethylene74-85-172,000 lbs0 lbs72,000 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
12Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
13Styrene100-42-5530 lbs0 lbs15,960 lbs
14tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
15Nonylphenol EthoxylatesN5350 lbs0 lbs11,809 lbs
16Propylene115-07-110,035 lbs0 lbs10,035 lbs
17Ammonia7664-41-78,692 lbs0 lbs9,344 lbs
18Nickel compoundsN4951,017 lbs108 lbs7,851 lbs
19Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
20Vinyl acetate108-05-42,418 lbs0 lbs7,117 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)7647-01-06,255 lbs0 lbs6,255 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 glycol107-21-13 lbs0 lbs1,147 lbs
35Acetaldehyde75-07-0494 lbs0 lbs1,132 lbs
36Benzene71-43-21,090 lbs0 lbs1,090 lbs
37Chlorine7782-50-5961 lbs0 lbs961 lbs
38Formaldehyde50-00-0154 lbs0 lbs667 lbs
39Maleic anhydride108-31-6178 lbs0 lbs578 lbs
40Propylene oxide75-56-9431 lbs0 lbs431 lbs
41Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
42Cyclohexane110-82-765 lbs0 lbs356 lbs
43Acrylic acid79-10-7186 lbs0 lbs192 lbs
44Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
451,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
46Hydrazine302-01-239 lbs0 lbs39 lbs
47Phosgene75-44-527 lbs0 lbs27 lbs
48Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
49Nitric acid7697-37-22 lbs0 lbs2 lbs

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