📊 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
1019 OAK LEAF AVE LA PORTE 77571
Building Size
6,846 sqft
Total structure area from HCAD building records.
Elevation
6.86 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 3.1ft 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
3.14 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 $453,755 (6,846 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (6,846 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: 3.14 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 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)
5.55 million lbs
Extremely High
850.4x more than typical Houston property
277 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)
5.55 million lbs
Extremely High
1150.4x 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)5,548,248 lbs5,547,681 lbs567 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)3,123,959 lbs449,805 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 74 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (74 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
3Toluene108-88-3723,761 lbs0 lbs723,761 lbs
4Propylene115-07-1607,960 lbs0 lbs607,960 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
121,3-Butadiene106-99-0103,203 lbs0 lbs103,203 lbs
13Cyclohexane110-82-7102,641 lbs0 lbs102,641 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
17Hydroquinone123-31-942,849 lbs0 lbs42,849 lbs
18Ethylene glycol107-21-137,504 lbs0 lbs37,504 lbs
19Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
20Xylene (mixed isomers)1330-20-735,072 lbs0 lbs35,072 lbs
21Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
22Cumene98-82-831,481 lbs0 lbs31,481 lbs
23Phenol108-95-230,497 lbs0 lbs30,497 lbs
24Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
25Benzene71-43-224,339 lbs0 lbs24,339 lbs
26Dicyclopentadiene77-73-621,187 lbs0 lbs21,187 lbs
27Styrene100-42-518,039 lbs0 lbs18,039 lbs
28Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-017,903 lbs0 lbs17,903 lbs
29Acetaldehyde75-07-015,347 lbs0 lbs15,347 lbs
30Formaldehyde50-00-010,409 lbs0 lbs10,409 lbs
31Epichlorohydrin106-89-88,484 lbs0 lbs8,484 lbs
32Dimethylamine124-40-37,773 lbs0 lbs7,773 lbs
33Maleic anhydride108-31-66,232 lbs0 lbs6,232 lbs
34Naphthalene91-20-36,170 lbs0 lbs6,170 lbs
35Ethylbenzene100-41-46,019 lbs0 lbs6,019 lbs
36Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
37Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
38Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
39Formic acid64-18-64,772 lbs0 lbs4,772 lbs
401,2,4-Trimethylbenzene95-63-64,544 lbs0 lbs4,544 lbs
41Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
42Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
431,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
44Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
451,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
46Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
47NonylphenolN5301,974 lbs0 lbs1,974 lbs
48Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
49Ethylene oxide75-21-81,600 lbs0 lbs1,600 lbs
50Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
51o-Xylene95-47-6815 lbs0 lbs815 lbs
52Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
53Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
54Chlorobenzene108-90-7559 lbs0 lbs559 lbs
55Hydrazine302-01-2437 lbs0 lbs437 lbs
56Acrolein107-02-8402 lbs0 lbs402 lbs
57Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
58Benzyl chloride100-44-7228 lbs0 lbs228 lbs
59Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
60Diethanolamine111-42-2106 lbs0 lbs106 lbs
61Diethyl sulfate64-67-585 lbs0 lbs85 lbs
62Zinc compoundsN98248 lbs33 lbs81 lbs
63Phthalic anhydride85-44-940 lbs0 lbs40 lbs
64Antimony compoundsN01020 lbs15 lbs35 lbs
65Acetonitrile75-05-833 lbs0 lbs33 lbs
66Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
672,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
68Triethylamine121-44-810 lbs0 lbs15 lbs
69Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
701,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
71Lead7439-92-12 lbs0 lbs2 lbs
72Biphenyl92-52-42 lbs0 lbs2 lbs
73Boron trifluoride7637-07-21 lbs0 lbs1 lbs
74Nickel 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 59 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (59 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
4Toluene108-88-340,637 lbs0 lbs173,433 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
10Propylene115-07-149,181 lbs0 lbs49,557 lbs
11Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
12Propylene oxide75-56-923,121 lbs0 lbs41,146 lbs
13Ethylene74-85-140,262 lbs0 lbs40,262 lbs
14n-Hexane110-54-319,447 lbs0 lbs36,695 lbs
15Ammonia7664-41-730,863 lbs0 lbs31,185 lbs
16Styrene100-42-5798 lbs0 lbs29,705 lbs
17Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
18Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
19Dicyclopentadiene77-73-62,465 lbs0 lbs21,953 lbs
20Isoprene78-79-512,309 lbs0 lbs12,309 lbs
21Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
22Ethylbenzene100-41-4365 lbs0 lbs10,266 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
27Hydroquinone123-31-94,885 lbs0 lbs5,047 lbs
281,3-Butadiene106-99-04,450 lbs0 lbs4,450 lbs
29Naphthalene91-20-3538 lbs0 lbs4,437 lbs
30Acetonitrile75-05-824 lbs0 lbs4,091 lbs
31Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
32Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
33NonylphenolN530551 lbs0 lbs2,678 lbs
34Cumene98-82-82,611 lbs0 lbs2,611 lbs
35Benzene71-43-22,139 lbs0 lbs2,139 lbs
36n-Butyl alcohol71-36-3942 lbs0 lbs2,104 lbs
37Certain glycol ethersN230421 lbs0 lbs2,084 lbs
381,2,4-Trimethylbenzene95-63-6624 lbs0 lbs2,021 lbs
39Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,959 lbs0 lbs1,959 lbs
40Maleic anhydride108-31-61,351 lbs0 lbs1,351 lbs
41Formic acid64-18-6175 lbs0 lbs1,197 lbs
42Formaldehyde50-00-0447 lbs0 lbs1,090 lbs
43Dibutyl phthalate84-74-2496 lbs0 lbs1,073 lbs
44Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
45Trade SecretTRD SECRT0 lbs46 lbs581 lbs
46Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
47Ethylene oxide75-21-8462 lbs0 lbs462 lbs
48Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
49Benzyl chloride100-44-7119 lbs0 lbs379 lbs
50Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
51Nitric acid7697-37-2219 lbs0 lbs219 lbs
521,4-Dioxane123-91-1126 lbs0 lbs126 lbs
53Chlorobenzene108-90-7100 lbs0 lbs100 lbs
541,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
55Hydrazine302-01-239 lbs0 lbs39 lbs
56Acrolein107-02-828 lbs0 lbs38 lbs
57Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
58Propyleneimine75-55-832 lbs0 lbs32 lbs
59Phthalic anhydride85-44-914 lbs0 lbs14 lbs

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