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
5200 HIGHWAY 146 SEABROOK 77586
Elevation
11.95 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very Low
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
Very Low
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: 1.95 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.

  • FEMA Zone X (minimal hazard) - flood insurance available at preferred rates.
  • 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
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)
3.14 million lbs
Extremely High
481.3x more than typical Houston property
≈ 157 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)
3.14 million lbs
Extremely High
651.1x 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)
310 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)3,140,312 lbs3,140,001 lbs310 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,406,110 lbs274,984 lbs76 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):

tert-Butyl alcohol, Propylene, Methanol, Propylene oxide, Acrylic acid

View the full list of 67 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (67 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0750,524 lbs0 lbs750,524 lbs
2Propylene115-07-1566,101 lbs0 lbs566,101 lbs
3Methanol67-56-1320,845 lbs0 lbs320,845 lbs
4Propylene oxide75-56-9293,670 lbs0 lbs293,670 lbs
5Acrylic acid79-10-7248,318 lbs0 lbs248,318 lbs
6Ethylene74-85-1178,679 lbs0 lbs178,679 lbs
7Benzene71-43-2129,270 lbs0 lbs129,270 lbs
81,3-Butadiene106-99-0105,073 lbs0 lbs105,073 lbs
9Cyclohexane110-82-7102,600 lbs0 lbs102,600 lbs
10Ethylbenzene100-41-466,752 lbs0 lbs66,752 lbs
11Ammonia7664-41-760,756 lbs0 lbs60,756 lbs
12Toluene108-88-351,603 lbs0 lbs51,603 lbs
13Styrene100-42-551,523 lbs0 lbs51,523 lbs
14Isoprene78-79-547,793 lbs0 lbs47,793 lbs
15Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
16Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
17Dicyclopentadiene77-73-620,009 lbs0 lbs20,009 lbs
18Xylene (mixed isomers)1330-20-714,870 lbs0 lbs14,870 lbs
19Formaldehyde50-00-07,717 lbs0 lbs7,717 lbs
20Naphthalene91-20-36,108 lbs0 lbs6,108 lbs
21Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
22Dimethylamine124-40-35,764 lbs0 lbs5,764 lbs
23Maleic anhydride108-31-65,267 lbs0 lbs5,267 lbs
24Formic acid64-18-64,772 lbs0 lbs4,772 lbs
251,2,4-Trimethylbenzene95-63-64,492 lbs0 lbs4,492 lbs
26Butyl acrylate141-32-24,451 lbs0 lbs4,451 lbs
27Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
28Vinyl acetate108-05-43,230 lbs0 lbs3,230 lbs
29Acetonitrile75-05-82,760 lbs0 lbs2,760 lbs
301,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
31Acrylonitrile107-13-12,062 lbs0 lbs2,062 lbs
32NonylphenolN5301,974 lbs0 lbs1,974 lbs
33n-Hexane110-54-31,735 lbs0 lbs1,735 lbs
34n-Butyl alcohol71-36-31,298 lbs0 lbs1,298 lbs
35Epichlorohydrin106-89-81,042 lbs0 lbs1,042 lbs
36o-Xylene95-47-6815 lbs0 lbs815 lbs
37Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
38Ethylene glycol107-21-1605 lbs0 lbs605 lbs
39Chlorobenzene108-90-7583 lbs0 lbs583 lbs
40Acetaldehyde75-07-0504 lbs0 lbs504 lbs
41Acrolein107-02-8402 lbs0 lbs402 lbs
42Cumene98-82-8384 lbs0 lbs384 lbs
43Hydroquinone123-31-9355 lbs0 lbs355 lbs
44Benzyl chloride100-44-7228 lbs0 lbs228 lbs
45Butyraldehyde123-72-8186 lbs0 lbs186 lbs
46Zinc compoundsN98268 lbs113 lbs181 lbs
47Ethylene oxide75-21-8169 lbs0 lbs169 lbs
48Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
49Diethanolamine111-42-2106 lbs0 lbs106 lbs
50Diethyl sulfate64-67-585 lbs0 lbs85 lbs
51Antimony compoundsN01044 lbs25 lbs69 lbs
52Lead And Lead CompoundsN42032 lbs3 lbs36 lbs
53Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
54Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
552,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
56Lead compoundsN42015 lbs1 lbs16 lbs
57Triethylamine121-44-810 lbs0 lbs15 lbs
58Cadmium compoundsN07811 lbs0 lbs11 lbs
59Pyridine110-86-110 lbs0 lbs10 lbs
60Allyl alcohol107-18-610 lbs0 lbs10 lbs
61Chromium7440-47-37 lbs2 lbs9 lbs
62Methyl acrylate96-33-36 lbs0 lbs6 lbs
631,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
64Lead7439-92-12 lbs0 lbs2 lbs
65Biphenyl92-52-42 lbs0 lbs2 lbs
66Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs2 lbs
67Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

tert-Butyl alcohol, Methanol, Acrylic acid, Nickel compounds, Toluene

View the full list of 44 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (44 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1tert-Butyl alcohol75-65-0101,671 lbs0 lbs635,087 lbs
2Methanol67-56-110,422 lbs0 lbs246,979 lbs
3Acrylic acid79-10-720,902 lbs0 lbs124,130 lbs
4Nickel compoundsN4950 lbs0 lbs74,741 lbs
5Toluene108-88-32,767 lbs0 lbs47,505 lbs
6Propylene oxide75-56-922,691 lbs0 lbs40,716 lbs
7Xylene (mixed isomers)1330-20-7586 lbs0 lbs40,489 lbs
8Propylene115-07-139,502 lbs0 lbs39,878 lbs
9Cyclohexane110-82-78,060 lbs0 lbs29,370 lbs
10Styrene100-42-53,598 lbs0 lbs17,737 lbs
11Ethylene74-85-116,290 lbs0 lbs16,290 lbs
12Ethylbenzene100-41-44,042 lbs0 lbs15,706 lbs
13Dicyclopentadiene77-73-62,368 lbs0 lbs14,402 lbs
14Isoprene78-79-512,309 lbs0 lbs12,309 lbs
15Benzene71-43-29,442 lbs0 lbs9,998 lbs
16Ammonia7664-41-76,500 lbs0 lbs6,596 lbs
171,3-Butadiene106-99-04,450 lbs0 lbs4,450 lbs
18Acetonitrile75-05-824 lbs0 lbs4,091 lbs
19Naphthalene91-20-3526 lbs0 lbs4,066 lbs
20Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
21Ethylene glycol107-21-191 lbs0 lbs2,920 lbs
22NonylphenolN530551 lbs0 lbs2,678 lbs
23Certain glycol ethersN230421 lbs0 lbs2,084 lbs
241,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
25n-Hexane110-54-3160 lbs0 lbs1,995 lbs
26Formic acid64-18-6175 lbs0 lbs1,197 lbs
27Maleic anhydride108-31-61,173 lbs0 lbs1,173 lbs
28Acrylonitrile107-13-1883 lbs0 lbs1,033 lbs
29Formaldehyde50-00-0296 lbs0 lbs936 lbs
30Butyl acrylate141-32-2848 lbs0 lbs848 lbs
31Trade SecretTRD SECRT0 lbs46 lbs581 lbs
32Benzyl chloride100-44-7119 lbs0 lbs379 lbs
33Hydroquinone123-31-923 lbs0 lbs185 lbs
341,4-Dioxane123-91-1126 lbs0 lbs126 lbs
35Chlorobenzene108-90-7100 lbs0 lbs100 lbs
36Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
37Ethylene oxide75-21-842 lbs0 lbs42 lbs
38Acrolein107-02-828 lbs0 lbs38 lbs
39Zinc compoundsN98213 lbs10 lbs33 lbs
40Propyleneimine75-55-832 lbs0 lbs32 lbs
41Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
42Chromium7440-47-34 lbs1 lbs5 lbs
43Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
44Methyl acrylate96-33-32 lbs0 lbs2 lbs

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