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
3109 WOODLAND CT LA PORTE 77571
Building Size
2,627 sqft
Total structure area from HCAD building records.
Elevation
9.1 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 0.9ft 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
0.9 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 $234,292 (2,627 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (2,627 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: 0.9 feet
Severity: Minor

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 89% 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)
5.31 million lbs
Extremely High
814.0x more than typical Houston property
≈ 266 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)
5.31 million lbs
Extremely High
1101.2x 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)
567 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)5,310,773 lbs5,310,206 lbs567 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)3,083,189 lbs421,035 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 89% 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, Methanol, Toluene, Propylene, Ethylene

View the full list of 69 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (69 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0751,778 lbs0 lbs751,778 lbs
2Methanol67-56-1737,196 lbs55 lbs737,251 lbs
3Toluene108-88-3711,522 lbs0 lbs711,522 lbs
4Propylene115-07-1565,088 lbs0 lbs565,088 lbs
5Ethylene74-85-1509,845 lbs0 lbs509,845 lbs
6Ammonia7664-41-7335,424 lbs0 lbs335,424 lbs
7Propylene oxide75-56-9310,422 lbs0 lbs310,422 lbs
8Acrylic acid79-10-7251,302 lbs0 lbs251,302 lbs
9n-Hexane110-54-3205,902 lbs0 lbs205,902 lbs
10Vinyl acetate108-05-4142,721 lbs0 lbs142,721 lbs
11Titanium tetrachloride7550-45-0108,195 lbs0 lbs108,195 lbs
12Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
131,3-Butadiene106-99-089,666 lbs0 lbs89,666 lbs
14Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
15n-Butyl alcohol71-36-354,543 lbs0 lbs54,543 lbs
16Isoprene78-79-547,793 lbs0 lbs47,793 lbs
17Ethylene glycol107-21-137,504 lbs0 lbs37,504 lbs
18Xylene (mixed isomers)1330-20-735,072 lbs0 lbs35,072 lbs
19Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
20Phenol108-95-230,497 lbs0 lbs30,497 lbs
21Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
22Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-017,903 lbs0 lbs17,903 lbs
23Acetaldehyde75-07-015,347 lbs0 lbs15,347 lbs
24Styrene100-42-510,610 lbs0 lbs10,610 lbs
25Formaldehyde50-00-010,409 lbs0 lbs10,409 lbs
26Epichlorohydrin106-89-88,484 lbs0 lbs8,484 lbs
27Dimethylamine124-40-37,773 lbs0 lbs7,773 lbs
28Maleic anhydride108-31-66,232 lbs0 lbs6,232 lbs
29Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
30Ethylbenzene100-41-45,941 lbs0 lbs5,941 lbs
31Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
32Diphenylamine122-39-44,854 lbs0 lbs4,854 lbs
33Formic acid64-18-64,772 lbs0 lbs4,772 lbs
341,2,4-Trimethylbenzene95-63-64,544 lbs0 lbs4,544 lbs
35Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
36Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
371,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
38Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
391,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
40Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
41NonylphenolN5301,974 lbs0 lbs1,974 lbs
42Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
43Naphthalene91-20-31,635 lbs0 lbs1,635 lbs
44Ethylene oxide75-21-81,600 lbs0 lbs1,600 lbs
45Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
46Dicyclopentadiene77-73-61,387 lbs0 lbs1,387 lbs
47Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
48Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
49Hydrazine302-01-2437 lbs0 lbs437 lbs
50Acrolein107-02-8402 lbs0 lbs402 lbs
51Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
52Hydroquinone123-31-9355 lbs0 lbs355 lbs
53Benzyl chloride100-44-7228 lbs0 lbs228 lbs
54Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
55Diethanolamine111-42-2106 lbs0 lbs106 lbs
56Diethyl sulfate64-67-585 lbs0 lbs85 lbs
57Zinc compoundsN98248 lbs33 lbs81 lbs
58Phthalic anhydride85-44-940 lbs0 lbs40 lbs
59Antimony compoundsN01020 lbs15 lbs35 lbs
60Acetonitrile75-05-833 lbs0 lbs33 lbs
61Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
622,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
63Triethylamine121-44-810 lbs0 lbs15 lbs
64Cumene98-82-815 lbs0 lbs15 lbs
65Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
661,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
67Lead7439-92-12 lbs0 lbs2 lbs
68Boron trifluoride7637-07-21 lbs0 lbs1 lbs
69Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, tert-Butyl alcohol, Allyl alcohol, Toluene, Vinyl acetate

View the full list of 55 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (55 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-136,168 lbs5 lbs1,122,753 lbs
2tert-Butyl alcohol75-65-0101,697 lbs0 lbs650,543 lbs
3Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
4Toluene108-88-339,610 lbs0 lbs172,406 lbs
5Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
6Acrylic acid79-10-721,027 lbs0 lbs124,256 lbs
7Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
8Nickel compoundsN4950 lbs0 lbs74,741 lbs
9Xylene (mixed isomers)1330-20-71,270 lbs0 lbs66,506 lbs
10Diphenylamine122-39-42 lbs0 lbs48,628 lbs
11Propylene oxide75-56-923,121 lbs0 lbs41,146 lbs
12Ethylene74-85-140,262 lbs0 lbs40,262 lbs
13Propylene115-07-138,844 lbs0 lbs39,220 lbs
14n-Hexane110-54-319,447 lbs0 lbs36,695 lbs
15Ammonia7664-41-730,863 lbs0 lbs31,185 lbs
16Styrene100-42-5682 lbs0 lbs29,589 lbs
17Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
18Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
19Isoprene78-79-512,309 lbs0 lbs12,309 lbs
20Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
21Ethylbenzene100-41-4365 lbs0 lbs10,266 lbs
22Dicyclopentadiene77-73-697 lbs0 lbs7,585 lbs
23Phenol108-95-21,875 lbs0 lbs6,506 lbs
24Ethylene glycol107-21-13,258 lbs0 lbs6,008 lbs
25Vanadium compoundsN7700 lbs0 lbs5,540 lbs
26Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
27Naphthalene91-20-3235 lbs0 lbs4,135 lbs
28Acetonitrile75-05-824 lbs0 lbs4,091 lbs
291,3-Butadiene106-99-03,642 lbs0 lbs3,642 lbs
30Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
31NonylphenolN530551 lbs0 lbs2,678 lbs
32n-Butyl alcohol71-36-3942 lbs0 lbs2,104 lbs
33Certain glycol ethersN230421 lbs0 lbs2,084 lbs
341,2,4-Trimethylbenzene95-63-6624 lbs0 lbs2,021 lbs
35Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,959 lbs0 lbs1,959 lbs
36Maleic anhydride108-31-61,351 lbs0 lbs1,351 lbs
37Formic acid64-18-6175 lbs0 lbs1,197 lbs
38Formaldehyde50-00-0447 lbs0 lbs1,090 lbs
39Dibutyl phthalate84-74-2496 lbs0 lbs1,073 lbs
40Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
41Trade SecretTRD SECRT0 lbs46 lbs581 lbs
42Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
43Ethylene oxide75-21-8462 lbs0 lbs462 lbs
44Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
45Benzyl chloride100-44-7119 lbs0 lbs379 lbs
46Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
47Nitric acid7697-37-2219 lbs0 lbs219 lbs
48Hydroquinone123-31-923 lbs0 lbs185 lbs
491,4-Dioxane123-91-1126 lbs0 lbs126 lbs
501,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
51Hydrazine302-01-239 lbs0 lbs39 lbs
52Acrolein107-02-828 lbs0 lbs38 lbs
53Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
54Propyleneimine75-55-832 lbs0 lbs32 lbs
55Phthalic anhydride85-44-914 lbs0 lbs14 lbs

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