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
923 HACKBERRY ST LA PORTE 77571
Building Size
2,478 sqft
Total structure area from HCAD building records.
Elevation
9.28 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 0.7ft 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
0.72 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 $196,228 (2,478 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (2,478 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: 0.72 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 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)
3.76 million lbs
Extremely High
575.9x more than typical Houston property
≈ 188 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)
3.76 million lbs
Extremely High
779.0x 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)3,757,389 lbs3,756,822 lbs567 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,292,614 lbs274,592 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):

Toluene, Methanol, Ethylene, Ammonia, Acrylic acid

View the full list of 76 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (76 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Toluene108-88-3711,522 lbs0 lbs711,522 lbs
2Methanol67-56-1662,641 lbs55 lbs662,696 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
111,3-Butadiene106-99-089,666 lbs0 lbs89,666 lbs
12Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
13Propylene115-07-157,546 lbs0 lbs57,546 lbs
14n-Butyl alcohol71-36-355,708 lbs0 lbs55,708 lbs
15Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-050,961 lbs0 lbs50,961 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
22Cumene98-82-831,111 lbs0 lbs31,111 lbs
23Phenol108-95-230,497 lbs0 lbs30,497 lbs
24Styrene100-42-517,954 lbs0 lbs17,954 lbs
25Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
26Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
27Benzene71-43-210,536 lbs0 lbs10,536 lbs
28Formaldehyde50-00-010,409 lbs0 lbs10,409 lbs
29Epichlorohydrin106-89-88,484 lbs0 lbs8,484 lbs
30Dimethylamine124-40-37,773 lbs0 lbs7,773 lbs
31Maleic anhydride108-31-66,232 lbs0 lbs6,232 lbs
32Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
33Ethylbenzene100-41-45,941 lbs0 lbs5,941 lbs
34Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
35Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
361,2,4-Trimethylbenzene95-63-64,544 lbs0 lbs4,544 lbs
37tert-Butyl alcohol75-65-04,519 lbs0 lbs4,519 lbs
38Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
39Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
40Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
411,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
42Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
431,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
44Formic acid64-18-62,017 lbs0 lbs2,017 lbs
45NonylphenolN5301,974 lbs0 lbs1,974 lbs
46Phosgene75-44-51,958 lbs0 lbs1,958 lbs
47Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
48Naphthalene91-20-31,635 lbs0 lbs1,635 lbs
49Ethylene oxide75-21-81,600 lbs0 lbs1,600 lbs
50Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
51Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
52sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
53Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
54Dicyclopentadiene77-73-61,387 lbs0 lbs1,387 lbs
55Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
56Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
57Hydrazine302-01-2437 lbs0 lbs437 lbs
58Acrolein107-02-8402 lbs0 lbs402 lbs
59Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
60Benzyl chloride100-44-7228 lbs0 lbs228 lbs
61Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
62Diethanolamine111-42-2106 lbs0 lbs106 lbs
63Diethyl sulfate64-67-585 lbs0 lbs85 lbs
64Zinc compoundsN98248 lbs33 lbs81 lbs
65Phthalic anhydride85-44-940 lbs0 lbs40 lbs
66Antimony compoundsN01020 lbs15 lbs35 lbs
67N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
68Acetonitrile75-05-833 lbs0 lbs33 lbs
69Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
702,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
71Triethylamine121-44-810 lbs0 lbs15 lbs
72Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
731,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
74Lead7439-92-12 lbs0 lbs2 lbs
75Boron trifluoride7637-07-21 lbs0 lbs1 lbs
76Nickel 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 63 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (63 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-130,608 lbs5 lbs980,564 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3Toluene108-88-339,610 lbs0 lbs172,406 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)1330-20-71,270 lbs0 lbs66,506 lbs
9Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
10n-Hexane110-54-319,447 lbs0 lbs36,695 lbs
11tert-Butyl alcohol75-65-0986 lbs0 lbs34,701 lbs
12Ammonia7664-41-730,863 lbs0 lbs31,185 lbs
13Styrene100-42-5798 lbs0 lbs29,705 lbs
14Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
15Ethylene74-85-124,713 lbs0 lbs24,713 lbs
16Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
17Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
18Isoprene78-79-512,309 lbs0 lbs12,309 lbs
19Propylene115-07-111,682 lbs0 lbs11,682 lbs
20Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
21Ethylbenzene100-41-4365 lbs0 lbs10,266 lbs
22Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-08,214 lbs0 lbs8,214 lbs
23Propylene oxide75-56-97,974 lbs0 lbs7,977 lbs
24Dicyclopentadiene77-73-697 lbs0 lbs7,585 lbs
25Phenol108-95-21,875 lbs0 lbs6,506 lbs
26Ethylene glycol107-21-13,258 lbs0 lbs6,008 lbs
27Vanadium compoundsN7700 lbs0 lbs5,540 lbs
28Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
29Hydroquinone123-31-94,885 lbs0 lbs5,047 lbs
30n-Butyl alcohol71-36-31,017 lbs0 lbs4,633 lbs
31Naphthalene91-20-3235 lbs0 lbs4,135 lbs
32Acetonitrile75-05-824 lbs0 lbs4,091 lbs
33Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
341,3-Butadiene106-99-03,642 lbs0 lbs3,642 lbs
35sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
36NonylphenolN530551 lbs0 lbs2,678 lbs
37Cumene98-82-82,611 lbs0 lbs2,611 lbs
38Certain glycol ethersN230421 lbs0 lbs2,084 lbs
391,2,4-Trimethylbenzene95-63-6624 lbs0 lbs2,021 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
43Benzene71-43-21,090 lbs0 lbs1,090 lbs
44Dibutyl phthalate84-74-2496 lbs0 lbs1,073 lbs
45Chlorine7782-50-5961 lbs0 lbs961 lbs
46Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
47Trade SecretTRD SECRT0 lbs46 lbs581 lbs
48Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
49Ethylene oxide75-21-8462 lbs0 lbs462 lbs
50Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
51Benzyl chloride100-44-7119 lbs0 lbs379 lbs
52Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
53Nitric acid7697-37-2219 lbs0 lbs219 lbs
541,4-Dioxane123-91-1126 lbs0 lbs126 lbs
55Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
561,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
57Hydrazine302-01-239 lbs0 lbs39 lbs
58Acrolein107-02-828 lbs0 lbs38 lbs
59Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
60Propyleneimine75-55-832 lbs0 lbs32 lbs
61Phosgene75-44-527 lbs0 lbs27 lbs
62Phthalic anhydride85-44-914 lbs0 lbs14 lbs
63Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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