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
2513 SAND CASTLE CT SEABROOK 77586
Building Size
4,357 sqft
Total structure area from HCAD building records.
Elevation
14.02 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
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: 4.02 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 85% 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)
2.5 million lbs
Extremely High
382.5x more than typical Houston property
≈ 125 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)
2.5 million lbs
Extremely High
517.4x 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)2,495,629 lbs2,495,319 lbs310 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,018,454 lbs225,209 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 85% 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, Ethylene

View the full list of 41 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (41 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0747,259 lbs0 lbs747,259 lbs
2Propylene115-07-1566,101 lbs0 lbs566,101 lbs
3Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
4Propylene oxide75-56-9214,725 lbs0 lbs214,725 lbs
5Ethylene74-85-1178,679 lbs0 lbs178,679 lbs
6Methanol67-56-1172,329 lbs0 lbs172,329 lbs
7Benzene71-43-2129,270 lbs0 lbs129,270 lbs
8Ethylbenzene100-41-466,024 lbs0 lbs66,024 lbs
9Styrene100-42-547,507 lbs0 lbs47,507 lbs
10Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
11Toluene108-88-320,552 lbs0 lbs20,552 lbs
12Dicyclopentadiene77-73-619,800 lbs0 lbs19,800 lbs
13Ammonia7664-41-717,698 lbs0 lbs17,698 lbs
141,3-Butadiene106-99-015,407 lbs0 lbs15,407 lbs
15Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
16Formic acid64-18-64,751 lbs0 lbs4,751 lbs
17Naphthalene91-20-34,535 lbs0 lbs4,535 lbs
18Formaldehyde50-00-02,450 lbs0 lbs2,450 lbs
19Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
20Butyl acrylate141-32-21,939 lbs0 lbs1,939 lbs
21o-Xylene95-47-6815 lbs0 lbs815 lbs
22Chlorobenzene108-90-7559 lbs0 lbs559 lbs
23Maleic anhydride108-31-6534 lbs0 lbs534 lbs
24Acetaldehyde75-07-0504 lbs0 lbs504 lbs
25Acrolein107-02-8402 lbs0 lbs402 lbs
26Cumene98-82-8369 lbs0 lbs369 lbs
27Hydroquinone123-31-9355 lbs0 lbs355 lbs
28Zinc compoundsN98255 lbs113 lbs168 lbs
29Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
30Antimony compoundsN01044 lbs25 lbs69 lbs
31Xylene (mixed isomers)1330-20-765 lbs0 lbs65 lbs
32Lead And Lead CompoundsN42032 lbs3 lbs36 lbs
33Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
34Lead compoundsN42015 lbs1 lbs16 lbs
35Cadmium compoundsN07811 lbs0 lbs11 lbs
36Chromium7440-47-37 lbs2 lbs9 lbs
37Methyl acrylate96-33-36 lbs0 lbs6 lbs
38Lead7439-92-12 lbs0 lbs2 lbs
39Biphenyl92-52-42 lbs0 lbs2 lbs
40Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs2 lbs
41Chromium 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, Propylene, Propylene oxide

View the full list of 30 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (30 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1tert-Butyl alcohol75-65-0100,711 lbs0 lbs615,843 lbs
2Methanol67-56-15,569 lbs0 lbs144,046 lbs
3Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
4Propylene115-07-139,502 lbs0 lbs39,878 lbs
5Propylene oxide75-56-915,147 lbs0 lbs33,169 lbs
6Ethylene74-85-116,290 lbs0 lbs16,290 lbs
7Dicyclopentadiene77-73-62,368 lbs0 lbs14,368 lbs
8Benzene71-43-29,442 lbs0 lbs9,998 lbs
9Ethylbenzene100-41-43,948 lbs0 lbs5,723 lbs
10Styrene100-42-53,330 lbs0 lbs3,992 lbs
11Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
12Toluene108-88-31,552 lbs0 lbs1,983 lbs
13Formic acid64-18-6175 lbs0 lbs1,197 lbs
14Acrylonitrile107-13-1879 lbs0 lbs1,029 lbs
15Butyl acrylate141-32-2848 lbs0 lbs848 lbs
161,3-Butadiene106-99-0808 lbs0 lbs808 lbs
17Formaldehyde50-00-0151 lbs0 lbs672 lbs
18Trade SecretTRD SECRT0 lbs46 lbs581 lbs
19Naphthalene91-20-3303 lbs0 lbs303 lbs
20Hydroquinone123-31-923 lbs0 lbs185 lbs
21Chlorobenzene108-90-7100 lbs0 lbs100 lbs
22Ethylene glycol107-21-10 lbs0 lbs85 lbs
23Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
24Acrolein107-02-828 lbs0 lbs38 lbs
25Zinc compoundsN98213 lbs10 lbs33 lbs
26Maleic anhydride108-31-626 lbs0 lbs26 lbs
27Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
28Chromium7440-47-34 lbs1 lbs5 lbs
29Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
30Methyl acrylate96-33-32 lbs0 lbs2 lbs

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