Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1806 Highway 146 S, La Porte, TX 77571

HCAD #1292170030005
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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
1806 Highway 146 S, La Porte, TX 77571
Elevation
16.07 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)
25.92 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
294.9 acres
100.0% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$4,839,319
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
12.5th percentile
Property Pollution Ranking
High
Higher pollution than 88% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
3.95 millionlbs
Extremely High
605.7x more than typical Houston property
≈ 198 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.95 millionlbs
Extremely High
818.2x 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
23
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)3,951,738 lbs3,945,878 lbs5,860 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)363,531 lbs362,908 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 88% 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, Ammonia
View the full list of 77 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(77 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,030,724 lbs0 lbs1,030,724 lbs
2Ethylene74-85-1743,892 lbs0 lbs743,892 lbs
3Methanol67-56-1444,555 lbs55 lbs444,610 lbs
4Toluene108-88-3429,217 lbs0 lbs429,217 lbs
5Ammonia7664-41-7311,322 lbs68 lbs311,390 lbs
6Vinyl acetate108-05-4142,721 lbs0 lbs142,721 lbs
7Cyclohexane110-82-7103,018 lbs0 lbs103,018 lbs
8Propylene oxide75-56-995,710 lbs0 lbs95,710 lbs
9Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
10n-Butyl alcohol71-36-355,709 lbs0 lbs55,709 lbs
11Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
12Propylene115-07-136,801 lbs0 lbs36,801 lbs
13Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-035,668 lbs0 lbs35,668 lbs
15Certain glycol ethersN23034,375 lbs0 lbs34,375 lbs
16Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
17Cumene98-82-831,188 lbs0 lbs31,188 lbs
18Phenol108-95-230,497 lbs0 lbs30,497 lbs
19Molybdenum trioxide1313-27-527,245 lbs3,165 lbs30,410 lbs
20Xylene (mixed isomers)1330-20-723,740 lbs0 lbs23,740 lbs
21Styrene100-42-517,954 lbs0 lbs17,954 lbs
22Isoprene78-79-515,828 lbs0 lbs15,828 lbs
23Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
24Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
251,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
26Nickel compoundsN4959,885 lbs1,149 lbs11,034 lbs
27Benzene71-43-210,536 lbs0 lbs10,536 lbs
28Formaldehyde50-00-07,881 lbs102 lbs7,983 lbs
29tert-Butyl alcohol75-65-06,837 lbs0 lbs6,837 lbs
30Ethylbenzene100-41-46,035 lbs0 lbs6,035 lbs
31Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
321,2,4-Trimethylbenzene95-63-65,539 lbs0 lbs5,539 lbs
33Cobalt compoundsN0963,961 lbs866 lbs4,827 lbs
34Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
35Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
36Allyl alcohol107-18-63,389 lbs0 lbs3,389 lbs
37Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
381,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
39Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
40Ethylene oxide75-21-82,391 lbs0 lbs2,391 lbs
411,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
42Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
43NonylphenolN5301,974 lbs0 lbs1,974 lbs
44Phosgene75-44-51,958 lbs0 lbs1,958 lbs
45Naphthalene91-20-31,668 lbs0 lbs1,668 lbs
46Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
47Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
48sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
49Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
50Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
51Ethylene glycol107-21-11,155 lbs0 lbs1,155 lbs
52Maleic anhydride108-31-6966 lbs0 lbs966 lbs
53Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
54Nickel And Nickel CompoundsN495702 lbs21 lbs723 lbs
55Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
56Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
57Hydrazine302-01-2437 lbs0 lbs437 lbs
58Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
59Cobalt And Cobalt CompoundsN096300 lbs5 lbs305 lbs
60Benzyl chloride100-44-7228 lbs0 lbs228 lbs
61Copper compoundsN100132 lbs6 lbs138 lbs
62Diethanolamine111-42-2106 lbs0 lbs106 lbs
63Diethyl sulfate64-67-585 lbs0 lbs85 lbs
64Zinc compoundsN98248 lbs33 lbs81 lbs
65Chloromethane74-87-351 lbs0 lbs51 lbs
66Epichlorohydrin106-89-842 lbs0 lbs42 lbs
67Antimony compoundsN01020 lbs15 lbs35 lbs
68N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
69Acetonitrile75-05-833 lbs0 lbs33 lbs
70Bis(2-chloroethyl) ether111-44-429 lbs0 lbs29 lbs
71Formic acid64-18-621 lbs0 lbs21 lbs
722,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
73Phthalic anhydride85-44-913 lbs0 lbs13 lbs
74Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
75Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
761,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
77Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Methanol, Ammonia, Toluene
View the full list of 54 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(54 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1n-Hexane110-54-3117,061 lbs0 lbs117,061 lbs
2Ethylene74-85-196,034 lbs0 lbs96,034 lbs
3Methanol67-56-127,504 lbs5 lbs27,509 lbs
4Ammonia7664-41-725,260 lbs0 lbs25,260 lbs
5Toluene108-88-314,321 lbs0 lbs14,321 lbs
6Vinyl acetate108-05-414,116 lbs0 lbs14,116 lbs
7Propylene115-07-110,035 lbs0 lbs10,035 lbs
8Cyclohexane110-82-78,125 lbs0 lbs8,125 lbs
9Propylene oxide75-56-97,975 lbs0 lbs7,975 lbs
10Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,374 lbs0 lbs6,374 lbs
11Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
12Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
13Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
14Molybdenum trioxide1313-27-52,612 lbs474 lbs3,086 lbs
15Cumene98-82-82,616 lbs0 lbs2,616 lbs
16Isoprene78-79-52,125 lbs0 lbs2,125 lbs
17Phenol108-95-21,875 lbs0 lbs1,875 lbs
181,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
19Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
20Benzene71-43-21,090 lbs0 lbs1,090 lbs
21Xylene (mixed isomers)1330-20-71,086 lbs0 lbs1,086 lbs
22n-Butyl alcohol71-36-31,017 lbs0 lbs1,017 lbs
23Chlorine7782-50-5961 lbs0 lbs961 lbs
24Styrene100-42-5798 lbs0 lbs798 lbs
251,2,4-Trimethylbenzene95-63-6698 lbs0 lbs698 lbs
26NonylphenolN530551 lbs0 lbs551 lbs
27Ethylene oxide75-21-8525 lbs0 lbs525 lbs
28Acetaldehyde75-07-0496 lbs0 lbs496 lbs
29tert-Butyl alcohol75-65-0493 lbs0 lbs493 lbs
30Cobalt compoundsN096455 lbs36 lbs491 lbs
31Chloroacetic acid79-11-8476 lbs0 lbs476 lbs
32Certain glycol ethersN230421 lbs0 lbs421 lbs
33Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
34Ethylbenzene100-41-4369 lbs0 lbs369 lbs
35Formaldehyde50-00-0299 lbs0 lbs299 lbs
36Naphthalene91-20-3235 lbs0 lbs235 lbs
37Dimethylamine124-40-3228 lbs0 lbs228 lbs
38Nitric acid7697-37-2219 lbs0 lbs219 lbs
39Acrylic acid79-10-7186 lbs0 lbs186 lbs
40Maleic anhydride108-31-6178 lbs0 lbs178 lbs
411,4-Dioxane123-91-1126 lbs0 lbs126 lbs
42Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
43Benzyl chloride100-44-7119 lbs0 lbs119 lbs
44Ethylene glycol107-21-1106 lbs0 lbs106 lbs
45Diphenylamine122-39-4105 lbs0 lbs105 lbs
46Dicyclopentadiene77-73-697 lbs0 lbs97 lbs
47Allyl alcohol107-18-696 lbs0 lbs96 lbs
48sec-Butyl alcohol78-92-293 lbs0 lbs93 lbs
491,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
50Hydrazine302-01-239 lbs0 lbs39 lbs
51Benzoyl chloride98-88-433 lbs0 lbs33 lbs
52Phosgene75-44-527 lbs0 lbs27 lbs
53Acetonitrile75-05-824 lbs0 lbs24 lbs
54Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
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