📊 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
12100 PORT RD SEABROOK 77586
Elevation
10.19 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: 0.19 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
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)
2.67 million lbs
Extremely High
409.9x more than typical Houston property
134 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)
2.67 million lbs
Extremely High
554.5x 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)2,674,270 lbs2,673,960 lbs310 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,211,447 lbs241,459 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, Acrylic acid, Propylene oxide, Methanol

View the full list of 55 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (55 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0747,259 lbs0 lbs747,259 lbs
2Propylene115-07-1560,029 lbs0 lbs560,029 lbs
3Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
4Propylene oxide75-56-9214,778 lbs0 lbs214,778 lbs
5Methanol67-56-1184,215 lbs0 lbs184,215 lbs
6Ethylene74-85-1178,679 lbs0 lbs178,679 lbs
7Benzene71-43-2115,467 lbs0 lbs115,467 lbs
8Cyclohexane110-82-7102,600 lbs0 lbs102,600 lbs
9Ethylbenzene100-41-466,674 lbs0 lbs66,674 lbs
10Ammonia7664-41-760,756 lbs0 lbs60,756 lbs
11Styrene100-42-551,437 lbs0 lbs51,437 lbs
12Certain glycol ethersN23034,364 lbs0 lbs34,364 lbs
13Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
14Isoprene78-79-515,828 lbs0 lbs15,828 lbs
151,3-Butadiene106-99-014,544 lbs0 lbs14,544 lbs
16Toluene108-88-38,514 lbs0 lbs8,514 lbs
17Formaldehyde50-00-07,585 lbs0 lbs7,585 lbs
18Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
19Formic acid64-18-64,772 lbs0 lbs4,772 lbs
201,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
21Butyl acrylate141-32-24,451 lbs0 lbs4,451 lbs
22Vinyl acetate108-05-43,230 lbs0 lbs3,230 lbs
23Xylene (mixed isomers)1330-20-72,663 lbs0 lbs2,663 lbs
24Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
25NonylphenolN5301,974 lbs0 lbs1,974 lbs
26n-Hexane110-54-31,735 lbs0 lbs1,735 lbs
27Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
28Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
29Maleic anhydride108-31-6534 lbs0 lbs534 lbs
30Acetaldehyde75-07-0504 lbs0 lbs504 lbs
31Ethylene glycol107-21-1496 lbs0 lbs496 lbs
32Acrolein107-02-8402 lbs0 lbs402 lbs
33Hydroquinone123-31-9355 lbs0 lbs355 lbs
34Benzyl chloride100-44-7228 lbs0 lbs228 lbs
35Zinc compoundsN98268 lbs113 lbs181 lbs
36Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
37Diethanolamine111-42-2106 lbs0 lbs106 lbs
38Diethyl sulfate64-67-585 lbs0 lbs85 lbs
39Antimony compoundsN01044 lbs25 lbs69 lbs
40Epichlorohydrin106-89-842 lbs0 lbs42 lbs
41n-Butyl alcohol71-36-337 lbs0 lbs37 lbs
42Lead And Lead CompoundsN42032 lbs3 lbs36 lbs
43Acetonitrile75-05-833 lbs0 lbs33 lbs
44Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
45Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
462,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
47Lead compoundsN42015 lbs1 lbs16 lbs
48Cumene98-82-815 lbs0 lbs15 lbs
49Cadmium compoundsN07811 lbs0 lbs11 lbs
50Chromium7440-47-37 lbs2 lbs9 lbs
51Methyl acrylate96-33-36 lbs0 lbs6 lbs
52Ethylene oxide75-21-85 lbs0 lbs5 lbs
53Lead7439-92-12 lbs0 lbs2 lbs
54Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs2 lbs
55Chromium 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, Propylene

View the full list of 40 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (40 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1tert-Butyl alcohol75-65-0100,711 lbs0 lbs615,843 lbs
2Methanol67-56-16,789 lbs0 lbs154,798 lbs
3Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
4Nickel compoundsN4950 lbs0 lbs74,741 lbs
5Propylene115-07-139,199 lbs0 lbs39,575 lbs
6Xylene (mixed isomers)1330-20-7363 lbs0 lbs39,094 lbs
7Propylene oxide75-56-915,148 lbs0 lbs33,170 lbs
8Cyclohexane110-82-78,060 lbs0 lbs29,370 lbs
9Styrene100-42-53,598 lbs0 lbs17,737 lbs
10Ethylene74-85-116,290 lbs0 lbs16,290 lbs
11Ethylbenzene100-41-44,042 lbs0 lbs15,706 lbs
12Benzene71-43-28,393 lbs0 lbs8,949 lbs
13Ammonia7664-41-76,500 lbs0 lbs6,596 lbs
14Toluene108-88-3587 lbs0 lbs4,245 lbs
15Acetonitrile75-05-824 lbs0 lbs4,091 lbs
16Naphthalene91-20-3223 lbs0 lbs3,764 lbs
17Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
18Ethylene glycol107-21-184 lbs0 lbs2,913 lbs
19NonylphenolN530551 lbs0 lbs2,678 lbs
20Isoprene78-79-52,125 lbs0 lbs2,125 lbs
21Certain glycol ethersN230421 lbs0 lbs2,084 lbs
221,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
23n-Hexane110-54-3160 lbs0 lbs1,995 lbs
24Formic acid64-18-6175 lbs0 lbs1,197 lbs
251,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
26Acrylonitrile107-13-1879 lbs0 lbs1,029 lbs
27Formaldehyde50-00-0296 lbs0 lbs925 lbs
28Butyl acrylate141-32-2848 lbs0 lbs848 lbs
29Trade SecretTRD SECRT0 lbs46 lbs581 lbs
30Benzyl chloride100-44-7119 lbs0 lbs379 lbs
31Hydroquinone123-31-923 lbs0 lbs185 lbs
32Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
33Acrolein107-02-828 lbs0 lbs38 lbs
34Zinc compoundsN98213 lbs10 lbs33 lbs
35Maleic anhydride108-31-626 lbs0 lbs26 lbs
36Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
37Chromium7440-47-34 lbs1 lbs5 lbs
38Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
39Methyl acrylate96-33-32 lbs0 lbs2 lbs
40Ethylene oxide75-21-81 lbs0 lbs1 lbs

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