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Home > Analysis: 907 Garden Walk Dr, La Porte, TX 77571

📊 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
907 GARDEN WALK DR LA PORTE 77571
Building Size
1,420 sqft
Total structure area from HCAD building records.
Elevation
13.77 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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
Property not flooded at current water level. No damage to calculate.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Property not flooded at current water level. No damage to calculate.
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: 3.77 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.

  • 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.

🏭 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)
3.74 million lbs
Extremely High
573.0x more than typical Houston property
≈ 187 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)
3.74 million lbs
Extremely High
775.1x 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)
479 lbs
High
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)3,738,226 lbs3,737,747 lbs479 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,035,235 lbs342,760 lbs5 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 61 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (61 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,030,72401,030,724
2Ethylene74-85-1743,8920743,892
3Methanol67-56-1442,79555442,850
4Toluene108-88-3429,4700429,470
5Ammonia7664-41-7310,3610310,361
6Vinyl acetate108-05-4139,4910139,491
7Cyclohexane110-82-7102,6410102,641
8Acrylonitrile107-13-183,639083,639
9n-Butyl alcohol71-36-355,640055,640
10Hydroquinone123-31-942,495042,495
11Propylene115-07-136,801036,801
12Methyl isobutyl ketone108-10-136,313036,313
13Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-035,668035,668
14Cumene98-82-831,096031,096
15Xylene (mixed isomers)1330-20-730,648030,648
16Phenol108-95-230,497030,497
17Styrene100-42-517,954017,954
18Propylene oxide75-56-916,752016,752
19Isoprene78-79-515,828015,828
20Acetaldehyde75-07-014,843014,843
21Chlorine7782-50-512,676012,676
221,3-Butadiene106-99-012,674012,674
23Benzene71-43-210,536010,536
24Diphenylamine122-39-45,85105,851
25Ethylbenzene100-41-45,21305,213
26Chloroacetic acid79-11-84,17504,175
27Acrylic acid79-10-73,53203,532
28Chlorobenzene108-90-73,12703,127
29Methyl methacrylate80-62-63,05003,050
30Formaldehyde50-00-02,69202,692
311,2-Butylene oxide106-88-72,34802,348
32Dimethylamine124-40-32,00902,009
33Phosgene75-44-51,95801,958
34Allyl alcohol107-18-61,82001,820
35Acetonitrile75-05-81,76501,765
36Methyl tert-butyl ether1634-04-41,59101,591
37Triethylamine121-44-81,51501,515
38Ethyl chloroformate541-41-31,46701,467
39Methyl chlorocarbonate79-22-11,44901,449
40sec-Butyl alcohol78-92-21,43401,434
41Ethylene oxide75-21-81,43101,431
42Nitric acid7697-37-21,41901,419
43tert-Butyl alcohol75-65-01,25401,254
44Dicyclopentadiene77-73-61,17801,178
45Maleic anhydride108-31-69650965
46Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-95970597
47N,N-Dimethylformamide68-12-25350535
48Ethylene glycol107-21-15270527
49Manganese7439-96-55110511
50Hydrazine302-01-24370437
51Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110370370
52Dichloromethane75-09-22510251
531,2,4-Trimethylbenzene95-63-670070
54Zinc compoundsN982353368
55Naphthalene91-20-363063
56Antimony compoundsN010201535
57Phthalic anhydride85-44-913013
58Antimony And Antimony CompoundsN0105510
59Butyl acrylate141-32-2505
60Boron trifluoride7637-07-2101
61Nickel compoundsN495011

Top chemicals released near this property (2024 only):

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

View the full list of 48 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (48 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-126,1705890,241
2Allyl alcohol107-18-6960233,588
3n-Hexane110-54-3117,0610134,809
4Vinyl acetate108-05-414,1160128,626
5Toluene108-88-314,2430102,639
6Ethylene74-85-196,034096,034
7Dimethylamine124-40-3228091,985
8Nickel compoundsN4950074,741
9Diphenylamine122-39-4105048,731
10Styrene100-42-5798029,705
11Cyclohexane110-82-78,101029,411
12Xylene (mixed isomers)1330-20-7684026,017
13Ammonia7664-41-725,258025,484
14Acetaldehyde75-07-0496023,127
15Chloroacetic acid79-11-8476020,694
16tert-Butyl alcohol75-65-026015,456
17Propylene115-07-110,035010,035
18Dicyclopentadiene77-73-69707,551
19Phenol108-95-21,87506,506
20Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,37406,374
21Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090005,055
22Hydroquinone123-31-94,86204,862
23n-Butyl alcohol71-36-31,01704,633
24Methyl isobutyl ketone108-10-13,99703,997
25sec-Butyl alcohol78-92-29303,447
26Cumene98-82-82,61102,611
27Isoprene78-79-52,12502,125
281,3-Butadiene106-99-01,18701,187
29Benzene71-43-21,09001,090
30Chlorine7782-50-59610961
31Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51100551
32Propylene oxide75-56-94300430
33Ethylene oxide75-21-84200420
34Methyl methacrylate80-62-63870387
35Naphthalene91-20-3120371
36Ethylbenzene100-41-42710283
37Nitric acid7697-37-22190219
38Acrylic acid79-10-71860192
39Maleic anhydride108-31-61780178
40Formaldehyde50-00-01510154
41Ethyl chloroformate541-41-31200120
421,2-Butylene oxide106-88-752052
43Hydrazine302-01-239039
44Antimony And Antimony CompoundsN0100033
45Phosgene75-44-527027
461,2,4-Trimethylbenzene95-63-625025
47Ethylene glycol107-21-115021
48Methyl chlorocarbonate79-22-113013