Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1902 State Hwy 146, La Porte, TX 77571

HCAD #1292170040005
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🌍Environmental Assessment

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.

🌊Flood Risk Analysis
FEMA Zone AE
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
1902 State Hwy 146, La Porte, TX 77571
Elevation
13.67 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Very High
Property flooded at 9.84ft depth.
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
Very High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
23.52 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
293.6 acres
99.5% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$1,189,333
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
Analysis Method
COG Combined 5000 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: 9.84 feet
Severity
Severe
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.

#1
Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages
#2
Obtain an Elevation Certificate to determine accurate flood insurance premiums
#3
Property elevation currently above simulated flood level
#4
Maintain flood insurance coverage as required in Special Flood Hazard Areas
#5
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#6
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
10.8th percentile
Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
6.88 millionlbs
Extremely High
1054.9x more than typical Houston property
≈ 344 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
6.88 millionlbs
Extremely High
1426.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
6 thousandlbs
Very High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
28
Industrial facilities within 2 miles
💡
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)6,882,561 lbs6,876,871 lbs5,690 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)569,650 lbs569,027 lbs623 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 chemicals released near this property (past 10 years):
n-Hexane, Ethylene, Methanol, Toluene, Vinyl acetate
View the full list of 85 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(85 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,274,648 lbs0 lbs1,274,648 lbs
2Ethylene74-85-11,120,937 lbs0 lbs1,120,937 lbs
3Methanol67-56-11,004,830 lbs55 lbs1,004,885 lbs
4Toluene108-88-3680,671 lbs0 lbs680,671 lbs
5Vinyl acetate108-05-4659,074 lbs0 lbs659,074 lbs
6Ammonia7664-41-7604,766 lbs0 lbs604,766 lbs
7Propylene115-07-1109,544 lbs0 lbs109,544 lbs
8Titanium tetrachloride7550-45-0108,195 lbs0 lbs108,195 lbs
9Acrylic acid79-10-7103,139 lbs0 lbs103,139 lbs
10Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
11Acetaldehyde75-07-096,270 lbs0 lbs96,270 lbs
12Propylene oxide75-56-995,696 lbs0 lbs95,696 lbs
13Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
14n-Butyl alcohol71-36-380,171 lbs0 lbs80,171 lbs
15Ethylene glycol107-21-169,563 lbs0 lbs69,563 lbs
16Ethylene oxide75-21-856,834 lbs0 lbs56,834 lbs
17Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-050,961 lbs0 lbs50,961 lbs
18Hydroquinone123-31-944,758 lbs0 lbs44,758 lbs
19Butyl acrylate141-32-242,511 lbs0 lbs42,511 lbs
20Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
21Ethyl acrylate140-88-537,048 lbs0 lbs37,048 lbs
22Certain glycol ethersN23036,974 lbs0 lbs36,974 lbs
23Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
24Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
25Cumene98-82-831,119 lbs0 lbs31,119 lbs
26Phenol108-95-230,497 lbs0 lbs30,497 lbs
27Molybdenum trioxide1313-27-527,245 lbs3,165 lbs30,410 lbs
28Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
29Xylene (mixed isomers)1330-20-722,865 lbs0 lbs22,865 lbs
30Styrene100-42-517,954 lbs0 lbs17,954 lbs
31Isoprene78-79-515,828 lbs0 lbs15,828 lbs
32Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
331,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
34Nickel compoundsN4959,885 lbs1,149 lbs11,034 lbs
35Benzene71-43-210,536 lbs0 lbs10,536 lbs
36Formaldehyde50-00-09,724 lbs0 lbs9,724 lbs
37Epichlorohydrin106-89-87,484 lbs0 lbs7,484 lbs
38tert-Butyl alcohol75-65-06,837 lbs0 lbs6,837 lbs
39Ethylbenzene100-41-45,941 lbs0 lbs5,941 lbs
40Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
41Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
42Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
43Cobalt compoundsN0963,961 lbs866 lbs4,827 lbs
441,2,4-Trimethylbenzene95-63-64,568 lbs0 lbs4,568 lbs
45Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
46Allyl alcohol107-18-63,389 lbs0 lbs3,389 lbs
47Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
481,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
491,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
50Acrolein107-02-82,268 lbs0 lbs2,268 lbs
51Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
52NonylphenolN5301,974 lbs0 lbs1,974 lbs
53Phosgene75-44-51,958 lbs0 lbs1,958 lbs
54Naphthalene91-20-31,635 lbs0 lbs1,635 lbs
55Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
56Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
57sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
58Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
59Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
60Maleic anhydride108-31-6965 lbs0 lbs965 lbs
61Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
62Nickel And Nickel CompoundsN495702 lbs21 lbs723 lbs
63Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
64Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
65Hydrazine302-01-2437 lbs0 lbs437 lbs
66Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
67Cobalt And Cobalt CompoundsN096300 lbs5 lbs305 lbs
68Benzyl chloride100-44-7228 lbs0 lbs228 lbs
69Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
70Copper compoundsN100132 lbs6 lbs138 lbs
71Diethanolamine111-42-2106 lbs0 lbs106 lbs
72Diethyl sulfate64-67-585 lbs0 lbs85 lbs
73Zinc compoundsN98248 lbs33 lbs81 lbs
74Phthalic anhydride85-44-940 lbs0 lbs40 lbs
75Antimony compoundsN01020 lbs15 lbs35 lbs
76N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
77Acetonitrile75-05-833 lbs0 lbs33 lbs
78Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
79Formic acid64-18-622 lbs0 lbs22 lbs
802,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
81Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
82Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
83Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
841,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
85Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Ammonia, Methanol, Toluene
View the full list of 65 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(65 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1n-Hexane110-54-3136,542 lbs0 lbs136,542 lbs
2Ethylene74-85-1117,900 lbs0 lbs117,900 lbs
3Ammonia7664-41-764,886 lbs0 lbs64,886 lbs
4Methanol67-56-152,785 lbs5 lbs52,790 lbs
5Toluene108-88-338,457 lbs0 lbs38,457 lbs
6Vinyl acetate108-05-433,123 lbs0 lbs33,123 lbs
7Propylene115-07-113,046 lbs0 lbs13,046 lbs
8Acrylic acid79-10-711,887 lbs0 lbs11,887 lbs
9Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
10Ethylene glycol107-21-18,929 lbs0 lbs8,929 lbs
11Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-08,214 lbs0 lbs8,214 lbs
12Cyclohexane110-82-78,101 lbs0 lbs8,101 lbs
13Propylene oxide75-56-97,974 lbs0 lbs7,974 lbs
14Hydroquinone123-31-96,585 lbs0 lbs6,585 lbs
15Acetaldehyde75-07-04,031 lbs0 lbs4,031 lbs
16Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
17Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
18Ethyl acrylate140-88-53,477 lbs0 lbs3,477 lbs
19Molybdenum trioxide1313-27-52,612 lbs474 lbs3,086 lbs
20Methyl acrylate96-33-32,867 lbs0 lbs2,867 lbs
21Butyl acrylate141-32-22,678 lbs0 lbs2,678 lbs
22Cumene98-82-82,611 lbs0 lbs2,611 lbs
23Isoprene78-79-52,125 lbs0 lbs2,125 lbs
24Ethylene oxide75-21-81,935 lbs0 lbs1,935 lbs
25Phenol108-95-21,875 lbs0 lbs1,875 lbs
26n-Butyl alcohol71-36-31,639 lbs0 lbs1,639 lbs
27Acrolein107-02-81,224 lbs0 lbs1,224 lbs
281,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
29Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
30Formaldehyde50-00-01,094 lbs0 lbs1,094 lbs
31Benzene71-43-21,090 lbs0 lbs1,090 lbs
32Xylene (mixed isomers)1330-20-71,047 lbs0 lbs1,047 lbs
33Chlorine7782-50-5961 lbs0 lbs961 lbs
34Methyl iodide74-88-4958 lbs0 lbs958 lbs
35Styrene100-42-5798 lbs0 lbs798 lbs
36Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
371,2,4-Trimethylbenzene95-63-6624 lbs0 lbs624 lbs
38NonylphenolN530551 lbs0 lbs551 lbs
39Dibutyl phthalate84-74-2496 lbs0 lbs496 lbs
40tert-Butyl alcohol75-65-0493 lbs0 lbs493 lbs
41Certain glycol ethersN230493 lbs0 lbs493 lbs
42Cobalt compoundsN096455 lbs36 lbs491 lbs
43Chloroacetic acid79-11-8476 lbs0 lbs476 lbs
44Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
45Ethylbenzene100-41-4365 lbs0 lbs365 lbs
46Naphthalene91-20-3235 lbs0 lbs235 lbs
47Dimethylamine124-40-3228 lbs0 lbs228 lbs
48Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
49Nitric acid7697-37-2219 lbs0 lbs219 lbs
50Maleic anhydride108-31-6178 lbs0 lbs178 lbs
511,4-Dioxane123-91-1126 lbs0 lbs126 lbs
52Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
53Benzyl chloride100-44-7119 lbs0 lbs119 lbs
54Diphenylamine122-39-4105 lbs0 lbs105 lbs
55Dicyclopentadiene77-73-697 lbs0 lbs97 lbs
56Allyl alcohol107-18-696 lbs0 lbs96 lbs
57sec-Butyl alcohol78-92-293 lbs0 lbs93 lbs
581,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
59Hydrazine302-01-239 lbs0 lbs39 lbs
60Benzoyl chloride98-88-433 lbs0 lbs33 lbs
61Phosgene75-44-527 lbs0 lbs27 lbs
62Acetonitrile75-05-824 lbs0 lbs24 lbs
63Phthalic anhydride85-44-914 lbs0 lbs14 lbs
64Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
65Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
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