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
3826 CORAL CIR SEABROOK 77586
Building Size
3,681 sqft
Total structure area from HCAD building records.
Elevation
11.39 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
Property not flooded at current water level. No damage to calculate.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Property not flooded at current water level. No damage to calculate.
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: 1.39 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 79% 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)
736 thousand lbs
Extremely High
112.8x more than typical Houston property
≈ 37 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)
736 thousand lbs
Extremely High
152.6x 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)736,070 lbs735,760 lbs310 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)181,744 lbs48,312 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 79% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile (top 25% most polluted).

Top chemicals released near this property (past 10 years):

Acrylic acid, Benzene, Methanol, Ethylbenzene, Styrene

View the full list of 43 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (43 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
2Benzene71-43-2129,270 lbs0 lbs129,270 lbs
3Methanol67-56-1108,059 lbs0 lbs108,059 lbs
4Ethylbenzene100-41-466,024 lbs0 lbs66,024 lbs
5Styrene100-42-547,507 lbs0 lbs47,507 lbs
6Propylene115-07-121,759 lbs0 lbs21,759 lbs
7Toluene108-88-320,552 lbs0 lbs20,552 lbs
8Dicyclopentadiene77-73-619,800 lbs0 lbs19,800 lbs
9Ammonia7664-41-717,698 lbs0 lbs17,698 lbs
10Ethylene74-85-115,437 lbs0 lbs15,437 lbs
111,3-Butadiene106-99-015,407 lbs0 lbs15,407 lbs
12Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
13Naphthalene91-20-34,536 lbs0 lbs4,536 lbs
14Acetonitrile75-05-82,727 lbs0 lbs2,727 lbs
15Formaldehyde50-00-02,450 lbs0 lbs2,450 lbs
16Acrylonitrile107-13-12,062 lbs0 lbs2,062 lbs
17Formic acid64-18-61,996 lbs0 lbs1,996 lbs
18Butyl acrylate141-32-21,939 lbs0 lbs1,939 lbs
19n-Butyl alcohol71-36-31,230 lbs0 lbs1,230 lbs
20o-Xylene95-47-6815 lbs0 lbs815 lbs
21Chlorobenzene108-90-7583 lbs0 lbs583 lbs
22Maleic anhydride108-31-6534 lbs0 lbs534 lbs
23Acrolein107-02-8402 lbs0 lbs402 lbs
24Cumene98-82-8369 lbs0 lbs369 lbs
25Hydroquinone123-31-9355 lbs0 lbs355 lbs
26Butyraldehyde123-72-8186 lbs0 lbs186 lbs
27Zinc compoundsN98255 lbs113 lbs168 lbs
28Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
29Antimony compoundsN01044 lbs25 lbs69 lbs
30Xylene (mixed isomers)1330-20-765 lbs0 lbs65 lbs
31Lead And Lead CompoundsN42032 lbs3 lbs36 lbs
32Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
331,2,4-Trimethylbenzene95-63-618 lbs0 lbs18 lbs
34Lead compoundsN42015 lbs1 lbs16 lbs
35Cadmium compoundsN07811 lbs0 lbs11 lbs
36Allyl alcohol107-18-610 lbs0 lbs10 lbs
37Pyridine110-86-110 lbs0 lbs10 lbs
38Chromium7440-47-37 lbs2 lbs9 lbs
39Methyl acrylate96-33-36 lbs0 lbs6 lbs
40Lead7439-92-12 lbs0 lbs2 lbs
41Biphenyl92-52-42 lbs0 lbs2 lbs
42Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs2 lbs
43Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Acrylic acid, Dicyclopentadiene, Methanol, Benzene, Ethylbenzene

View the full list of 27 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (27 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
2Dicyclopentadiene77-73-62,368 lbs0 lbs14,368 lbs
3Methanol67-56-1385 lbs0 lbs12,579 lbs
4Benzene71-43-29,442 lbs0 lbs9,998 lbs
5Ethylbenzene100-41-43,948 lbs0 lbs5,723 lbs
6Styrene100-42-53,330 lbs0 lbs3,992 lbs
7Propylene115-07-12,306 lbs0 lbs2,306 lbs
8Toluene108-88-31,552 lbs0 lbs1,983 lbs
9Formic acid64-18-6175 lbs0 lbs1,197 lbs
10Acrylonitrile107-13-1883 lbs0 lbs1,033 lbs
11Butyl acrylate141-32-2848 lbs0 lbs848 lbs
121,3-Butadiene106-99-0808 lbs0 lbs808 lbs
13Ethylene74-85-1741 lbs0 lbs741 lbs
14Formaldehyde50-00-0151 lbs0 lbs672 lbs
15Trade SecretTRD SECRT0 lbs46 lbs581 lbs
16Naphthalene91-20-3303 lbs0 lbs303 lbs
17Hydroquinone123-31-923 lbs0 lbs185 lbs
18Chlorobenzene108-90-7100 lbs0 lbs100 lbs
19Ethylene glycol107-21-10 lbs0 lbs85 lbs
20Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
21Acrolein107-02-828 lbs0 lbs38 lbs
22Zinc compoundsN98213 lbs10 lbs33 lbs
23Maleic anhydride108-31-626 lbs0 lbs26 lbs
24Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
25Chromium7440-47-34 lbs1 lbs5 lbs
26Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
27Methyl acrylate96-33-32 lbs0 lbs2 lbs

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