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
11235 CHOATE RD LA PORTE 77507
Elevation
11.21 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 1.21 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
Very High
Higher pollution than 91% 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)
9.62 million lbs
Extremely High
1474.9x more than typical Houston property
≈ 481 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)
9.6 million lbs
Extremely High
1991.2x 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)
20 thousand lbs
Extremely 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)9,622,674 lbs9,602,384 lbs20,290 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)5,480,815 lbs836,244 lbs2,733 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 91% 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):

Methanol, Ethylene, n-Hexane, tert-Butyl alcohol, Toluene

View the full list of 100 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (100 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-11,313,360 lbs55 lbs1,313,415 lbs
2Ethylene74-85-11,301,001 lbs0 lbs1,301,001 lbs
3n-Hexane110-54-31,277,126 lbs0 lbs1,277,126 lbs
4tert-Butyl alcohol75-65-0757,361 lbs0 lbs757,361 lbs
5Toluene108-88-3725,641 lbs0 lbs725,641 lbs
6Ammonia7664-41-7705,924 lbs0 lbs705,924 lbs
7Propylene115-07-1669,054 lbs0 lbs669,054 lbs
8Vinyl acetate108-05-4659,074 lbs0 lbs659,074 lbs
9Acrylic acid79-10-7351,457 lbs0 lbs351,457 lbs
10Propylene oxide75-56-9310,422 lbs0 lbs310,422 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
14Acetaldehyde75-07-097,287 lbs0 lbs97,287 lbs
15n-Butyl alcohol71-36-391,430 lbs0 lbs91,430 lbs
16Acrylonitrile107-13-183,724 lbs0 lbs83,724 lbs
17Molybdenum trioxide1313-27-578,313 lbs3,165 lbs81,478 lbs
18Ethylene glycol107-21-176,952 lbs0 lbs76,952 lbs
19Methyl methacrylate80-62-662,766 lbs0 lbs63,038 lbs
20Ethylene oxide75-21-860,191 lbs0 lbs60,191 lbs
21Isoprene78-79-551,809 lbs0 lbs51,809 lbs
22Hydroquinone123-31-945,112 lbs0 lbs45,112 lbs
23Butyl acrylate141-32-242,511 lbs0 lbs42,511 lbs
24Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
25Ethyl acrylate140-88-537,048 lbs0 lbs37,048 lbs
26Certain glycol ethersN23036,974 lbs0 lbs36,974 lbs
27Xylene (mixed isomers)1330-20-736,663 lbs0 lbs36,663 lbs
28Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
29Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
30Cumene98-82-831,489 lbs0 lbs31,489 lbs
31Phenol108-95-230,497 lbs0 lbs30,497 lbs
32Benzene71-43-224,344 lbs0 lbs24,344 lbs
33Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
34Dicyclopentadiene77-73-621,187 lbs0 lbs21,187 lbs
35Styrene100-42-520,372 lbs0 lbs20,503 lbs
36Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-017,903 lbs0 lbs17,903 lbs
37Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51145 lbs14,517 lbs14,562 lbs
38Nickel compoundsN49511,274 lbs1,170 lbs12,443 lbs
39Formaldehyde50-00-012,338 lbs0 lbs12,338 lbs
40Maleic anhydride108-31-611,271 lbs0 lbs11,271 lbs
41Epichlorohydrin106-89-88,484 lbs0 lbs8,484 lbs
42Dimethylamine124-40-37,773 lbs0 lbs7,773 lbs
43Naphthalene91-20-36,405 lbs0 lbs6,405 lbs
44Ethylbenzene100-41-46,019 lbs0 lbs6,019 lbs
45Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
46Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
47Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
48Cobalt compoundsN0964,415 lbs866 lbs5,281 lbs
49Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
50Formic acid64-18-64,910 lbs0 lbs4,910 lbs
511,2,4-Trimethylbenzene95-63-64,846 lbs0 lbs4,846 lbs
52Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
53Allyl alcohol107-18-63,399 lbs0 lbs3,399 lbs
54Vanadium compoundsN7703,122 lbs0 lbs3,137 lbs
55Nickel And Nickel CompoundsN4952,940 lbs96 lbs3,036 lbs
56Acetonitrile75-05-82,760 lbs0 lbs2,760 lbs
57Acrolein107-02-82,670 lbs0 lbs2,670 lbs
58Zinc compoundsN9822,387 lbs266 lbs2,653 lbs
591,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
601,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
61Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
62Nitric acid7697-37-22,056 lbs0 lbs2,056 lbs
63NonylphenolN5301,974 lbs0 lbs1,974 lbs
64Vanadium (except when contained in an alloy)7440-62-21,691 lbs0 lbs1,691 lbs
65Cobalt And Cobalt CompoundsN0961,041 lbs5 lbs1,046 lbs
66o-Xylene95-47-6815 lbs0 lbs815 lbs
67Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
68Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
69Chlorobenzene108-90-7583 lbs0 lbs583 lbs
70N,N-Dimethylformamide68-12-2511 lbs0 lbs511 lbs
71Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
72Hydrazine302-01-2437 lbs0 lbs437 lbs
73Diethanolamine111-42-2414 lbs0 lbs414 lbs
74Phosphorus (yellow or white)12185-10-3250 lbs0 lbs250 lbs
75Benzyl chloride100-44-7228 lbs0 lbs228 lbs
76Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
77Butyraldehyde123-72-8186 lbs0 lbs186 lbs
78Copper compoundsN100132 lbs24 lbs156 lbs
794,4'-Isopropylidenediphenol80-05-7141 lbs0 lbs141 lbs
80Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090101 lbs14 lbs115 lbs
81Diethyl sulfate64-67-585 lbs0 lbs85 lbs
82Phthalic anhydride85-44-940 lbs0 lbs40 lbs
83Antimony compoundsN01020 lbs15 lbs35 lbs
84Chromium compounds (except for chromite ore mined in the Transvaal Region)N09029 lbs4 lbs33 lbs
85Sodium nitrite7632-00-033 lbs0 lbs33 lbs
86Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
872,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
88Triethylamine121-44-810 lbs0 lbs15 lbs
89Pyridine110-86-110 lbs0 lbs10 lbs
90Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
91Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
92Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
931,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
94Lead compoundsN4202 lbs0 lbs2 lbs
95Lead7439-92-12 lbs0 lbs2 lbs
96Biphenyl92-52-42 lbs0 lbs2 lbs
97Nickel7440-02-02 lbs0 lbs2 lbs
98Lead And Lead CompoundsN4201 lbs0 lbs1 lbs
99N-Methyl-2-pyrrolidone872-50-41 lbs0 lbs1 lbs
100Boron trifluoride7637-07-21 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, tert-Butyl alcohol, Acrylic acid, Ethyl acrylate, Ethylene glycol

View the full list of 75 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (75 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-161,973 lbs5 lbs1,195,727 lbs
2tert-Butyl alcohol75-65-0102,164 lbs0 lbs744,444 lbs
3Acrylic acid79-10-732,789 lbs0 lbs463,570 lbs
4Ethyl acrylate140-88-53,477 lbs0 lbs391,250 lbs
5Ethylene glycol107-21-114,422 lbs0 lbs362,301 lbs
6Molybdenum trioxide1313-27-57,569 lbs474 lbs261,198 lbs
7Vinyl acetate108-05-433,123 lbs0 lbs254,727 lbs
8Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
9Toluene108-88-340,637 lbs0 lbs173,433 lbs
10n-Hexane110-54-3139,020 lbs0 lbs156,769 lbs
11Ethylene74-85-1150,272 lbs0 lbs150,272 lbs
12Acetaldehyde75-07-04,543 lbs0 lbs100,219 lbs
13Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
14Vanadium (except when contained in an alloy)7440-62-2170 lbs0 lbs86,403 lbs
15Nickel compoundsN4951,017 lbs108 lbs82,592 lbs
16n-Butyl alcohol71-36-31,564 lbs0 lbs77,005 lbs
17Ammonia7664-41-771,083 lbs0 lbs71,411 lbs
18Xylene (mixed isomers)1330-20-71,270 lbs0 lbs66,506 lbs
19Propylene115-07-151,245 lbs0 lbs51,620 lbs
20Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
21Butyl acrylate141-32-22,678 lbs0 lbs43,665 lbs
22Propylene oxide75-56-923,121 lbs0 lbs41,146 lbs
23Vanadium compoundsN77067 lbs0 lbs39,269 lbs
24Cobalt And Cobalt CompoundsN096100 lbs0 lbs37,290 lbs
25Nickel And Nickel CompoundsN495341 lbs26 lbs32,206 lbs
26Styrene100-42-51,383 lbs0 lbs30,290 lbs
27Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
28Dicyclopentadiene77-73-62,465 lbs0 lbs21,953 lbs
29Methyl acrylate96-33-32,867 lbs0 lbs17,363 lbs
30Methyl methacrylate80-62-612,693 lbs0 lbs12,693 lbs
31Isoprene78-79-512,309 lbs0 lbs12,309 lbs
32Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
33Ethylbenzene100-41-4365 lbs0 lbs10,266 lbs
34Hydroquinone123-31-96,608 lbs0 lbs6,770 lbs
35Phenol108-95-21,875 lbs0 lbs6,506 lbs
36Ethylene oxide75-21-84,138 lbs0 lbs6,416 lbs
37Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
381,3-Butadiene106-99-04,450 lbs0 lbs4,450 lbs
39Naphthalene91-20-3538 lbs0 lbs4,437 lbs
40Acetonitrile75-05-824 lbs0 lbs4,091 lbs
41Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
42Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
43Cobalt compoundsN096455 lbs36 lbs2,816 lbs
44Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,038 lbs2,781 lbs
45NonylphenolN530551 lbs0 lbs2,678 lbs
46Cumene98-82-82,611 lbs0 lbs2,611 lbs
47Certain glycol ethersN230493 lbs0 lbs2,155 lbs
48Benzene71-43-22,139 lbs0 lbs2,139 lbs
491,2,4-Trimethylbenzene95-63-6624 lbs0 lbs2,021 lbs
50Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,959 lbs0 lbs1,959 lbs
51Formaldehyde50-00-01,260 lbs0 lbs1,902 lbs
52Acrolein107-02-81,252 lbs0 lbs1,822 lbs
53Maleic anhydride108-31-61,756 lbs0 lbs1,756 lbs
54Cumene hydroperoxide80-15-90 lbs0 lbs1,560 lbs
55Formic acid64-18-6175 lbs0 lbs1,197 lbs
56Dibutyl phthalate84-74-2496 lbs0 lbs1,073 lbs
57Methyl iodide74-88-4958 lbs0 lbs958 lbs
58Nitric acid7697-37-2852 lbs0 lbs852 lbs
59Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
60Trade SecretTRD SECRT0 lbs46 lbs581 lbs
61Dimethyl phthalate131-11-30 lbs0 lbs406 lbs
62Benzyl chloride100-44-7119 lbs0 lbs379 lbs
63Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
644,4'-Isopropylidenediphenol80-05-71 lbs0 lbs146 lbs
651,4-Dioxane123-91-1126 lbs0 lbs126 lbs
66Chlorobenzene108-90-7100 lbs0 lbs100 lbs
671,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
68Hydrazine302-01-239 lbs0 lbs39 lbs
69N,N-Dimethylformamide68-12-239 lbs0 lbs39 lbs
70Benzoyl chloride98-88-433 lbs0 lbs33 lbs
71Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
72Propyleneimine75-55-832 lbs0 lbs32 lbs
73Phthalic anhydride85-44-914 lbs0 lbs14 lbs
74Acrylonitrile107-13-14 lbs0 lbs4 lbs
75Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs

Explore More Properties