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
2823 SEA LEDGE DR SEABROOK 77586
Building Size
3,002 sqft
Total structure area from HCAD building records.
Elevation
9.6 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
High
Property flooded at 0.4ft depth. Risk based on flood depth at structure.

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
High
Flood Depth
0.4 ft ±0.5 ft
Depth of water above ground 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
Based on HCAD building value of $292,878 (3,002 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (3,002 sqft) but no comparable neighborhood data found.
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 Flooded
Flood Depth: 0.4 feet
Severity: Minor

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.
  • Simulation shows flooding at current water level - review property drainage and consider mitigation.

🏭 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)
2.98 million lbs
Extremely High
456.4x more than typical Houston property
≈ 149 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)
2.96 million lbs
Extremely High
614.4x 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)
15 thousand lbs
Extremely 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)2,977,758 lbs2,962,935 lbs14,823 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,640,146 lbs261,032 lbs2,140 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, Acrylic acid, Propylene oxide

View the full list of 68 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (68 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
3Methanol67-56-1308,012 lbs0 lbs308,012 lbs
4Acrylic acid79-10-7248,318 lbs0 lbs248,318 lbs
5Propylene oxide75-56-9214,725 lbs0 lbs214,725 lbs
6Ethylene74-85-1178,679 lbs0 lbs178,679 lbs
7Benzene71-43-2129,275 lbs0 lbs129,275 lbs
8Ammonia7664-41-7127,548 lbs0 lbs127,548 lbs
91,3-Butadiene106-99-092,399 lbs0 lbs92,399 lbs
10Ethylbenzene100-41-466,024 lbs0 lbs66,024 lbs
11Toluene108-88-351,402 lbs0 lbs51,402 lbs
12Molybdenum trioxide1313-27-551,068 lbs0 lbs51,068 lbs
13Styrene100-42-547,507 lbs0 lbs47,507 lbs
14Isoprene78-79-531,965 lbs0 lbs31,965 lbs
15Dicyclopentadiene77-73-620,009 lbs0 lbs20,009 lbs
16Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51145 lbs14,147 lbs14,192 lbs
17Xylene (mixed isomers)1330-20-712,272 lbs0 lbs12,272 lbs
18n-Butyl alcohol71-36-36,334 lbs0 lbs6,334 lbs
19Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
20Dimethylamine124-40-35,764 lbs0 lbs5,764 lbs
21Maleic anhydride108-31-65,267 lbs0 lbs5,267 lbs
22Formic acid64-18-64,888 lbs0 lbs4,888 lbs
23Naphthalene91-20-34,655 lbs0 lbs4,655 lbs
24Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
25Vanadium compoundsN7703,122 lbs0 lbs3,137 lbs
26Zinc compoundsN9822,389 lbs346 lbs2,736 lbs
27Acetonitrile75-05-82,727 lbs0 lbs2,727 lbs
28Formaldehyde50-00-02,599 lbs0 lbs2,599 lbs
29Nickel And Nickel CompoundsN4952,238 lbs75 lbs2,313 lbs
30Acrylonitrile107-13-12,062 lbs0 lbs2,062 lbs
31Butyl acrylate141-32-21,939 lbs0 lbs1,939 lbs
32Ethylene glycol107-21-11,906 lbs0 lbs1,906 lbs
33Vanadium (except when contained in an alloy)7440-62-21,691 lbs0 lbs1,691 lbs
34Nickel compoundsN4951,389 lbs21 lbs1,410 lbs
35Ethylene oxide75-21-81,298 lbs0 lbs1,298 lbs
36Epichlorohydrin106-89-81,000 lbs0 lbs1,000 lbs
37o-Xylene95-47-6815 lbs0 lbs815 lbs
38Cobalt And Cobalt CompoundsN096741 lbs0 lbs741 lbs
39Nitric acid7697-37-2637 lbs0 lbs637 lbs
40Chlorobenzene108-90-7583 lbs0 lbs583 lbs
41Acetaldehyde75-07-0504 lbs0 lbs504 lbs
42Cobalt compoundsN096454 lbs0 lbs454 lbs
43Acrolein107-02-8402 lbs0 lbs402 lbs
44Cumene98-82-8369 lbs0 lbs369 lbs
45Hydroquinone123-31-9355 lbs0 lbs355 lbs
46Diethanolamine111-42-2308 lbs0 lbs308 lbs
47Phosphorus (yellow or white)12185-10-3250 lbs0 lbs250 lbs
48Butyraldehyde123-72-8186 lbs0 lbs186 lbs
49Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
504,4'-Isopropylidenediphenol80-05-7141 lbs0 lbs141 lbs
51Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090102 lbs14 lbs116 lbs
52Antimony compoundsN01044 lbs25 lbs69 lbs
53Lead And Lead CompoundsN42033 lbs3 lbs37 lbs
54Chromium compounds (except for chromite ore mined in the Transvaal Region)N09030 lbs4 lbs34 lbs
55Sodium nitrite7632-00-033 lbs0 lbs33 lbs
56Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
57Lead compoundsN42017 lbs1 lbs18 lbs
58Copper compoundsN1000 lbs18 lbs18 lbs
591,2,4-Trimethylbenzene95-63-618 lbs0 lbs18 lbs
60Triethylamine121-44-810 lbs0 lbs15 lbs
61Cadmium compoundsN07811 lbs0 lbs11 lbs
62Pyridine110-86-110 lbs0 lbs10 lbs
63Allyl alcohol107-18-610 lbs0 lbs10 lbs
64Chromium7440-47-37 lbs2 lbs9 lbs
65Methyl acrylate96-33-36 lbs0 lbs6 lbs
66Lead7439-92-12 lbs0 lbs2 lbs
67Biphenyl92-52-42 lbs0 lbs2 lbs
68N-Methyl-2-pyrrolidone872-50-41 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

tert-Butyl alcohol, Molybdenum trioxide, Methanol, Acrylic acid, Vanadium (except when contained in an alloy)

View the full list of 42 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (42 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1tert-Butyl alcohol75-65-0101,671 lbs0 lbs635,087 lbs
2Molybdenum trioxide1313-27-54,957 lbs0 lbs227,922 lbs
3Methanol67-56-19,197 lbs0 lbs200,510 lbs
4Acrylic acid79-10-720,902 lbs0 lbs124,130 lbs
5Vanadium (except when contained in an alloy)7440-62-2170 lbs0 lbs86,403 lbs
6Ethylene glycol107-21-110 lbs0 lbs58,156 lbs
7Toluene108-88-32,705 lbs0 lbs44,217 lbs
8Propylene115-07-139,502 lbs0 lbs39,878 lbs
9Cobalt And Cobalt CompoundsN096100 lbs0 lbs37,290 lbs
10Vanadium compoundsN77067 lbs0 lbs33,729 lbs
11Propylene oxide75-56-915,147 lbs0 lbs33,169 lbs
12Nickel And Nickel CompoundsN495341 lbs26 lbs32,206 lbs
13Ethylene74-85-116,290 lbs0 lbs16,290 lbs
14Dicyclopentadiene77-73-62,368 lbs0 lbs14,402 lbs
15Ammonia7664-41-712,667 lbs0 lbs12,769 lbs
16Isoprene78-79-510,184 lbs0 lbs10,184 lbs
17Benzene71-43-29,442 lbs0 lbs9,998 lbs
18Ethylbenzene100-41-43,948 lbs0 lbs5,723 lbs
19Styrene100-42-53,330 lbs0 lbs3,992 lbs
201,3-Butadiene106-99-03,263 lbs0 lbs3,263 lbs
21Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,038 lbs2,230 lbs
22Xylene (mixed isomers)1330-20-7223 lbs0 lbs1,395 lbs
23Formic acid64-18-6175 lbs0 lbs1,197 lbs
24Maleic anhydride108-31-61,173 lbs0 lbs1,173 lbs
25Acrylonitrile107-13-1883 lbs0 lbs1,033 lbs
26Butyl acrylate141-32-2848 lbs0 lbs848 lbs
27Formaldehyde50-00-0151 lbs0 lbs672 lbs
28Nitric acid7697-37-2633 lbs0 lbs633 lbs
29Trade SecretTRD SECRT0 lbs46 lbs581 lbs
30Naphthalene91-20-3303 lbs0 lbs303 lbs
31Hydroquinone123-31-923 lbs0 lbs185 lbs
32Ethylene oxide75-21-8145 lbs0 lbs146 lbs
334,4'-Isopropylidenediphenol80-05-71 lbs0 lbs146 lbs
34Chlorobenzene108-90-7100 lbs0 lbs100 lbs
35Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
36Acrolein107-02-828 lbs0 lbs38 lbs
37Zinc compoundsN98213 lbs10 lbs33 lbs
38Propyleneimine75-55-832 lbs0 lbs32 lbs
39Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
40Chromium7440-47-34 lbs1 lbs5 lbs
41Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
42Methyl acrylate96-33-32 lbs0 lbs2 lbs

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