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
0 N H ST LA PORTE 77571
Elevation
20.7 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: 10.7 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)
2.99 million lbs
Extremely High
457.6x more than typical Houston property
≈ 149 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)
2.04 million lbs
Extremely High
423.7x 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)
942 thousand lbs
Extremely 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)2,985,213 lbs2,043,385 lbs941,828 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,216,879 lbs121,213 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 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):

Methanol, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ethylene, Vinyl acetate, Ammonia

View the full list of 57 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (57 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-1962,044 lbs0 lbs1,221,044 lbs
2Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs911,682 lbs911,682 lbs
3Ethylene74-85-1362,526 lbs0 lbs362,526 lbs
4Vinyl acetate108-05-4141,735 lbs0 lbs279,345 lbs
5Ammonia7664-41-7106,624 lbs3,267 lbs109,891 lbs
6Formaldehyde50-00-063,854 lbs102 lbs63,956 lbs
7Hydroquinone123-31-942,495 lbs0 lbs57,435 lbs
8Propylene115-07-149,954 lbs0 lbs49,954 lbs
9n-Butyl alcohol71-36-349,207 lbs0 lbs49,207 lbs
10Toluene108-88-345,807 lbs0 lbs45,807 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)7647-01-033,058 lbs0 lbs33,058 lbs
13Cumene98-82-831,165 lbs0 lbs31,165 lbs
14Copper compoundsN1001 lbs84 lbs29,084 lbs
15Xylene (mixed isomers)1330-20-712,012 lbs0 lbs26,357 lbs
16Sodium nitrite7632-00-00 lbs26,012 lbs26,012 lbs
17Acetaldehyde75-07-016,053 lbs0 lbs22,283 lbs
18n-Hexane110-54-316,824 lbs0 lbs16,824 lbs
19Chlorine7782-50-511,961 lbs0 lbs11,961 lbs
20Benzene71-43-210,536 lbs0 lbs10,536 lbs
21Styrene100-42-57,344 lbs0 lbs7,344 lbs
22Dimethylamine124-40-37,035 lbs0 lbs7,035 lbs
23Dichloromethane75-09-25,437 lbs0 lbs5,437 lbs
24Acetonitrile75-05-85,326 lbs0 lbs5,326 lbs
25Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
26Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
27Methyl methacrylate80-62-63,437 lbs0 lbs3,437 lbs
28Ethylene oxide75-21-82,222 lbs0 lbs2,222 lbs
29Mercury7439-97-60 lbs0 lbs2,200 lbs
30Phosgene75-44-51,958 lbs0 lbs1,958 lbs
31Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
32Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
33Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
34sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
35Hydrogen fluoride7664-39-31,062 lbs0 lbs1,062 lbs
36Diphenylamine122-39-4997 lbs0 lbs997 lbs
371,2,4-Trimethylbenzene95-63-6971 lbs0 lbs971 lbs
38Manganese7439-96-5511 lbs282 lbs793 lbs
39Propylene oxide75-56-9385 lbs0 lbs385 lbs
40Cyclohexane110-82-7377 lbs0 lbs377 lbs
41Hexazinone51235-04-20 lbs212 lbs212 lbs
42Nickel7440-02-00 lbs152 lbs152 lbs
43Ethylbenzene100-41-494 lbs0 lbs94 lbs
44Chromium7440-47-345 lbs25 lbs70 lbs
45Methyl acrylate96-33-355 lbs0 lbs55 lbs
46Chloromethane74-87-351 lbs0 lbs51 lbs
47N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
48Naphthalene91-20-333 lbs0 lbs33 lbs
49Ethylene glycol107-21-115 lbs0 lbs15 lbs
50Nickel compoundsN4954 lbs3 lbs8 lbs
51Copper And Copper CompoundsN1000 lbs6 lbs6 lbs
52Butyl acrylate141-32-25 lbs0 lbs5 lbs
53Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
54Nickel And Nickel CompoundsN4952 lbs1 lbs3 lbs
55Certain glycol ethersN2303 lbs0 lbs3 lbs
56Maleic anhydride108-31-61 lbs0 lbs1 lbs
57Methyl isocyanate624-83-91 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Aluminum oxide (fibrous forms), 1,2,4-Trimethylbenzene, Vinyl acetate, Chloroacetic acid

View the full list of 37 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (37 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-155,943 lbs0 lbs1,647,100 lbs
2Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs353,010 lbs
31,2,4-Trimethylbenzene95-63-674 lbs0 lbs43,988 lbs
4Vinyl acetate108-05-49,298 lbs0 lbs27,496 lbs
5Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
6Toluene108-88-316 lbs0 lbs13,930 lbs
7Xylene (mixed isomers)1330-20-739 lbs0 lbs13,258 lbs
8Nonylphenol EthoxylatesN5350 lbs0 lbs11,809 lbs
9Propylene115-07-110,535 lbs0 lbs10,535 lbs
10Ethylene74-85-110,189 lbs0 lbs10,189 lbs
11Ammonia7664-41-78,692 lbs0 lbs9,344 lbs
12Formaldehyde50-00-03,562 lbs0 lbs6,312 lbs
13Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
14Cumene98-82-82,616 lbs0 lbs5,324 lbs
15Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
16Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
17Naphthalene91-20-30 lbs0 lbs4,040 lbs
18Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
19sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
20Ethylene oxide75-21-8483 lbs0 lbs3,183 lbs
21Ethylbenzene100-41-44 lbs0 lbs2,630 lbs
22n-Butyl alcohol71-36-375 lbs0 lbs2,529 lbs
23Polycyclic aromatic compoundsN5900 lbs0 lbs1,652 lbs
24Acetaldehyde75-07-0504 lbs0 lbs1,147 lbs
25Ethylene glycol107-21-13 lbs0 lbs1,147 lbs
26Chlorine7782-50-51,121 lbs0 lbs1,121 lbs
27Benzene71-43-21,090 lbs0 lbs1,090 lbs
28Maleic anhydride108-31-60 lbs0 lbs400 lbs
29Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
30Cyclohexane110-82-724 lbs0 lbs315 lbs
31Acrylic acid79-10-7186 lbs0 lbs192 lbs
32Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
33Styrene100-42-5116 lbs0 lbs116 lbs
34Diphenylamine122-39-4103 lbs0 lbs103 lbs
35Propylene oxide75-56-961 lbs0 lbs61 lbs
36Phosgene75-44-527 lbs0 lbs27 lbs
37Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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