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
903 HACKBERRY ST LA PORTE 77571
Building Size
2,743 sqft
Total structure area from HCAD building records.
Elevation
8.82 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 1.2ft 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
1.18 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 $208,888 (2,743 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (2,743 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: 1.18 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 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)
3.24 million lbs
Extremely High
496.7x more than typical Houston property
≈ 162 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)
3.24 million lbs
Extremely High
671.9x 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)3,240,482 lbs3,239,916 lbs567 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,113,286 lbs224,352 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 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):

Toluene, Methanol, Ethylene, Ammonia, Acrylic acid

View the full list of 66 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (66 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Toluene108-88-3680,671 lbs0 lbs680,671 lbs
2Methanol67-56-1537,306 lbs55 lbs537,361 lbs
3Ethylene74-85-1346,604 lbs0 lbs346,604 lbs
4Ammonia7664-41-7335,424 lbs0 lbs335,424 lbs
5Acrylic acid79-10-7251,302 lbs0 lbs251,302 lbs
6n-Hexane110-54-3205,902 lbs0 lbs205,902 lbs
7Vinyl acetate108-05-4142,721 lbs0 lbs142,721 lbs
8Titanium tetrachloride7550-45-0108,195 lbs0 lbs108,195 lbs
9Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
10Propylene oxide75-56-995,696 lbs0 lbs95,696 lbs
11Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
12n-Butyl alcohol71-36-354,543 lbs0 lbs54,543 lbs
13Ethylene glycol107-21-137,504 lbs0 lbs37,504 lbs
14Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
15Phenol108-95-230,497 lbs0 lbs30,497 lbs
16Xylene (mixed isomers)1330-20-722,865 lbs0 lbs22,865 lbs
17Propylene115-07-120,746 lbs0 lbs20,746 lbs
18Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-017,903 lbs0 lbs17,903 lbs
19Isoprene78-79-515,828 lbs0 lbs15,828 lbs
20Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
211,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
22Styrene100-42-510,610 lbs0 lbs10,610 lbs
23Formaldehyde50-00-010,285 lbs0 lbs10,285 lbs
24Epichlorohydrin106-89-87,484 lbs0 lbs7,484 lbs
25Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
26Ethylbenzene100-41-45,941 lbs0 lbs5,941 lbs
27Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
28Diphenylamine122-39-44,854 lbs0 lbs4,854 lbs
291,2,4-Trimethylbenzene95-63-64,544 lbs0 lbs4,544 lbs
30Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
311,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
32Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
331,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
34Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
35Formic acid64-18-62,017 lbs0 lbs2,017 lbs
36Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
37NonylphenolN5301,974 lbs0 lbs1,974 lbs
38Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
39Naphthalene91-20-31,635 lbs0 lbs1,635 lbs
40Ethylene oxide75-21-81,600 lbs0 lbs1,600 lbs
41Maleic anhydride108-31-61,499 lbs0 lbs1,499 lbs
42Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
43tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
44Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
45Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
46Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
47Hydrazine302-01-2437 lbs0 lbs437 lbs
48Acrolein107-02-8402 lbs0 lbs402 lbs
49Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
50Hydroquinone123-31-9355 lbs0 lbs355 lbs
51Benzyl chloride100-44-7228 lbs0 lbs228 lbs
52Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
53Diethanolamine111-42-2106 lbs0 lbs106 lbs
54Diethyl sulfate64-67-585 lbs0 lbs85 lbs
55Zinc compoundsN98248 lbs33 lbs81 lbs
56Phthalic anhydride85-44-940 lbs0 lbs40 lbs
57Antimony compoundsN01020 lbs15 lbs35 lbs
58Acetonitrile75-05-833 lbs0 lbs33 lbs
59Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
602,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
61Cumene98-82-815 lbs0 lbs15 lbs
62Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
631,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
64Lead7439-92-12 lbs0 lbs2 lbs
65Boron trifluoride7637-07-21 lbs0 lbs1 lbs
66Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Toluene, Vinyl acetate, Acrylic acid

View the full list of 53 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (53 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-127,356 lbs5 lbs934,822 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3Toluene108-88-338,457 lbs0 lbs130,173 lbs
4Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
5Acrylic acid79-10-721,027 lbs0 lbs124,256 lbs
6Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
7Nickel compoundsN4950 lbs0 lbs74,741 lbs
8Xylene (mixed isomers)1330-20-71,047 lbs0 lbs65,111 lbs
9Diphenylamine122-39-42 lbs0 lbs48,628 lbs
10n-Hexane110-54-319,447 lbs0 lbs36,695 lbs
11Ammonia7664-41-730,863 lbs0 lbs31,185 lbs
12Styrene100-42-5682 lbs0 lbs29,589 lbs
13Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
14Ethylene74-85-124,713 lbs0 lbs24,713 lbs
15Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
16tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
17Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
18Ethylbenzene100-41-4365 lbs0 lbs10,266 lbs
19Propylene oxide75-56-97,974 lbs0 lbs7,977 lbs
20Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
21Phenol108-95-21,875 lbs0 lbs6,506 lbs
22Ethylene glycol107-21-13,258 lbs0 lbs6,008 lbs
23Vanadium compoundsN7700 lbs0 lbs5,540 lbs
24Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
25Naphthalene91-20-3235 lbs0 lbs4,135 lbs
26Acetonitrile75-05-824 lbs0 lbs4,091 lbs
27NonylphenolN530551 lbs0 lbs2,678 lbs
28Isoprene78-79-52,125 lbs0 lbs2,125 lbs
29n-Butyl alcohol71-36-3942 lbs0 lbs2,104 lbs
30Certain glycol ethersN230421 lbs0 lbs2,084 lbs
311,2,4-Trimethylbenzene95-63-6624 lbs0 lbs2,021 lbs
32Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,959 lbs0 lbs1,959 lbs
33Propylene115-07-11,648 lbs0 lbs1,648 lbs
34Formic acid64-18-6175 lbs0 lbs1,197 lbs
351,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
36Formaldehyde50-00-0447 lbs0 lbs1,090 lbs
37Dibutyl phthalate84-74-2496 lbs0 lbs1,073 lbs
38Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
39Trade SecretTRD SECRT0 lbs46 lbs581 lbs
40Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
41Ethylene oxide75-21-8462 lbs0 lbs462 lbs
42Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
43Benzyl chloride100-44-7119 lbs0 lbs379 lbs
44Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
45Nitric acid7697-37-2219 lbs0 lbs219 lbs
46Maleic anhydride108-31-6204 lbs0 lbs204 lbs
47Hydroquinone123-31-923 lbs0 lbs185 lbs
481,4-Dioxane123-91-1126 lbs0 lbs126 lbs
491,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
50Hydrazine302-01-239 lbs0 lbs39 lbs
51Acrolein107-02-828 lbs0 lbs38 lbs
52Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
53Phthalic anhydride85-44-914 lbs0 lbs14 lbs

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