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
623 N SHADY LN LA PORTE 77571
Building Size
2,102 sqft
Total structure area from HCAD building records.
Elevation
6.72 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
High
Property flooded at 3.3ft depth. Risk based on flood depth at structure.

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
High
Flood Depth
3.28 ft ±0.5 ft
Depth of water above ground 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
Based on HCAD building value of $124,921 (2,102 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (2,102 sqft) but no comparable neighborhood data found.
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 Flooded
Flood Depth: 3.28 feet
Severity: Moderate

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.

  • This property is in a high-risk flood zone. Flood insurance is required for mortgages.
  • Consider flood mitigation measures like elevated utilities and flood vents.
  • 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.
  • Simulation shows flooding at current water level - review property drainage and consider mitigation.

🏭 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)
3.59 million lbs
Extremely High
550.2x more than typical Houston property
≈ 179 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)
3.59 million lbs
Extremely High
744.2x 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)
566 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)3,589,479 lbs3,588,913 lbs566 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,890,790 lbs315,917 lbs51 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):

tert-Butyl alcohol, Propylene, Ethylene, Methanol, Propylene oxide

View the full list of 53 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (53 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0747,259 lbs0 lbs747,259 lbs
2Propylene115-07-1560,029 lbs0 lbs560,029 lbs
3Ethylene74-85-1502,426 lbs0 lbs502,426 lbs
4Methanol67-56-1362,582 lbs55 lbs362,637 lbs
5Propylene oxide75-56-9293,670 lbs0 lbs293,670 lbs
6Ammonia7664-41-7265,454 lbs0 lbs265,454 lbs
7Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
8Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
9Benzene71-43-2115,467 lbs0 lbs115,467 lbs
10Cyclohexane110-82-7102,600 lbs0 lbs102,600 lbs
11Ethylbenzene100-41-466,674 lbs0 lbs66,674 lbs
12Styrene100-42-551,437 lbs0 lbs51,437 lbs
13Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
14Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
15Isoprene78-79-515,828 lbs0 lbs15,828 lbs
161,3-Butadiene106-99-014,544 lbs0 lbs14,544 lbs
17Toluene108-88-38,514 lbs0 lbs8,514 lbs
18Formaldehyde50-00-07,593 lbs0 lbs7,593 lbs
19Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
20Formic acid64-18-64,772 lbs0 lbs4,772 lbs
211,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
22Butyl acrylate141-32-24,451 lbs0 lbs4,451 lbs
23Acetaldehyde75-07-03,091 lbs0 lbs3,091 lbs
24Xylene (mixed isomers)1330-20-72,663 lbs0 lbs2,663 lbs
251,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02,610 lbs0 lbs2,610 lbs
27Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
28Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
29NonylphenolN5301,974 lbs0 lbs1,974 lbs
30n-Hexane110-54-31,735 lbs0 lbs1,735 lbs
31Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
32Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
33Ethylene glycol107-21-11,078 lbs0 lbs1,078 lbs
34Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
35Maleic anhydride108-31-6534 lbs0 lbs534 lbs
36Acrolein107-02-8402 lbs0 lbs402 lbs
37Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
38Hydroquinone123-31-9355 lbs0 lbs355 lbs
39Benzyl chloride100-44-7228 lbs0 lbs228 lbs
40Ethylene oxide75-21-8169 lbs0 lbs169 lbs
41Diethanolamine111-42-2106 lbs0 lbs106 lbs
42Diethyl sulfate64-67-585 lbs0 lbs85 lbs
43Zinc compoundsN98248 lbs33 lbs81 lbs
44n-Butyl alcohol71-36-368 lbs0 lbs68 lbs
45Epichlorohydrin106-89-842 lbs0 lbs42 lbs
46Antimony compoundsN01020 lbs15 lbs35 lbs
47Acetonitrile75-05-833 lbs0 lbs33 lbs
48Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
492,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
50Cumene98-82-815 lbs0 lbs15 lbs
51Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
521,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
53Lead7439-92-12 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

Methanol, tert-Butyl alcohol, Acrylic acid, Vinyl acetate, Nickel compounds

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)
1Methanol67-56-120,936 lbs5 lbs641,489 lbs
2tert-Butyl alcohol75-65-0100,711 lbs0 lbs615,843 lbs
3Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
4Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
5Nickel compoundsN4950 lbs0 lbs74,741 lbs
6Propylene oxide75-56-922,691 lbs0 lbs40,716 lbs
7Ethylene74-85-140,324 lbs0 lbs40,324 lbs
8Propylene115-07-139,199 lbs0 lbs39,575 lbs
9Xylene (mixed isomers)1330-20-7363 lbs0 lbs39,094 lbs
10Cyclohexane110-82-78,060 lbs0 lbs29,370 lbs
11Ammonia7664-41-723,068 lbs0 lbs23,164 lbs
12Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
13Styrene100-42-53,598 lbs0 lbs17,737 lbs
14Ethylbenzene100-41-44,042 lbs0 lbs15,706 lbs
15Benzene71-43-28,393 lbs0 lbs8,949 lbs
16Toluene108-88-3587 lbs0 lbs4,245 lbs
17Acetonitrile75-05-824 lbs0 lbs4,091 lbs
18Naphthalene91-20-3223 lbs0 lbs3,764 lbs
19Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
20Ethylene glycol107-21-1103 lbs0 lbs2,932 lbs
21NonylphenolN530551 lbs0 lbs2,678 lbs
22Isoprene78-79-52,125 lbs0 lbs2,125 lbs
23Certain glycol ethersN230421 lbs0 lbs2,084 lbs
241,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
25n-Hexane110-54-3160 lbs0 lbs1,995 lbs
26Formic acid64-18-6175 lbs0 lbs1,197 lbs
271,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
28Acrylonitrile107-13-1879 lbs0 lbs1,029 lbs
29Formaldehyde50-00-0296 lbs0 lbs936 lbs
30Butyl acrylate141-32-2848 lbs0 lbs848 lbs
31Trade SecretTRD SECRT0 lbs46 lbs581 lbs
32Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
33Benzyl chloride100-44-7119 lbs0 lbs379 lbs
34Nitric acid7697-37-2217 lbs0 lbs217 lbs
35Hydroquinone123-31-923 lbs0 lbs185 lbs
361,4-Dioxane123-91-1126 lbs0 lbs126 lbs
37Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0119 lbs0 lbs119 lbs
38Ethylene oxide75-21-842 lbs0 lbs42 lbs
39Acrolein107-02-828 lbs0 lbs38 lbs
40Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
41Maleic anhydride108-31-626 lbs0 lbs26 lbs

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