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
1218 SPRING CRESS LN SEABROOK 77586
Building Size
9,456 sqft
Total structure area from HCAD building records.
Elevation
8.77 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 1.2ft 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
1.23 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 $825,486 (9,456 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (9,456 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: 1.23 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 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)
2.17 million lbs
Extremely High
332.3x more than typical Houston property
≈ 108 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)
2.17 million lbs
Extremely High
449.5x 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)
222 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)2,168,041 lbs2,167,818 lbs222 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,058,986 lbs203,301 lbs30 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, Propylene oxide, Methanol, Ethylene

View the full list of 57 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (57 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0750,524 lbs0 lbs750,524 lbs
2Propylene115-07-1550,414 lbs0 lbs550,414 lbs
3Propylene oxide75-56-9214,725 lbs0 lbs214,725 lbs
4Methanol67-56-1211,137 lbs0 lbs211,137 lbs
5Ethylene74-85-1163,241 lbs0 lbs163,241 lbs
61,3-Butadiene106-99-090,529 lbs0 lbs90,529 lbs
7Toluene108-88-343,089 lbs0 lbs43,089 lbs
8Isoprene78-79-531,965 lbs0 lbs31,965 lbs
9Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
10Dicyclopentadiene77-73-620,009 lbs0 lbs20,009 lbs
11Benzene71-43-213,803 lbs0 lbs13,803 lbs
12Xylene (mixed isomers)1330-20-712,207 lbs0 lbs12,207 lbs
13Dimethylamine124-40-35,764 lbs0 lbs5,764 lbs
14Maleic anhydride108-31-64,733 lbs0 lbs4,733 lbs
15Naphthalene91-20-34,633 lbs0 lbs4,633 lbs
16Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
17Formic acid64-18-62,892 lbs0 lbs2,892 lbs
18Acetonitrile75-05-82,727 lbs0 lbs2,727 lbs
19Zinc compoundsN9822,389 lbs113 lbs2,502 lbs
20Ethylene glycol107-21-11,906 lbs0 lbs1,906 lbs
21Ammonia7664-41-71,741 lbs0 lbs1,741 lbs
22Ethylene oxide75-21-81,298 lbs0 lbs1,298 lbs
23n-Butyl alcohol71-36-31,230 lbs0 lbs1,230 lbs
24Epichlorohydrin106-89-81,000 lbs0 lbs1,000 lbs
25Vanadium compoundsN770945 lbs0 lbs960 lbs
26o-Xylene95-47-6815 lbs0 lbs815 lbs
27Chlorobenzene108-90-7583 lbs0 lbs583 lbs
28Acrylic acid79-10-7548 lbs0 lbs548 lbs
29Acetaldehyde75-07-0504 lbs0 lbs504 lbs
30Cumene98-82-8369 lbs0 lbs369 lbs
31Diethanolamine111-42-2308 lbs0 lbs308 lbs
32Phosphorus (yellow or white)12185-10-3250 lbs0 lbs250 lbs
33Butyraldehyde123-72-8186 lbs0 lbs186 lbs
34Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
35Formaldehyde50-00-0149 lbs0 lbs149 lbs
364,4'-Isopropylidenediphenol80-05-7141 lbs0 lbs141 lbs
37Styrene100-42-586 lbs0 lbs86 lbs
38Acrylonitrile107-13-185 lbs0 lbs85 lbs
39Ethylbenzene100-41-478 lbs0 lbs78 lbs
40Antimony compoundsN01044 lbs25 lbs69 lbs
41Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51145 lbs0 lbs45 lbs
42Lead And Lead CompoundsN42033 lbs3 lbs37 lbs
43Sodium nitrite7632-00-033 lbs0 lbs33 lbs
44Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
45Lead compoundsN42017 lbs1 lbs18 lbs
461,2,4-Trimethylbenzene95-63-618 lbs0 lbs18 lbs
47Triethylamine121-44-810 lbs0 lbs15 lbs
48Cadmium compoundsN07811 lbs0 lbs11 lbs
49Pyridine110-86-110 lbs0 lbs10 lbs
50Allyl alcohol107-18-610 lbs0 lbs10 lbs
51Chromium7440-47-37 lbs2 lbs9 lbs
52Methyl acrylate96-33-36 lbs0 lbs6 lbs
53Lead7439-92-12 lbs0 lbs2 lbs
54Biphenyl92-52-42 lbs0 lbs2 lbs
55Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs2 lbs
56Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
57N-Methyl-2-pyrrolidone872-50-41 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

tert-Butyl alcohol, Methanol, Ethylene glycol, Toluene, Propylene

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)
1tert-Butyl alcohol75-65-0101,671 lbs0 lbs635,087 lbs
2Methanol67-56-19,197 lbs0 lbs200,510 lbs
3Ethylene glycol107-21-110 lbs0 lbs58,071 lbs
4Toluene108-88-32,179 lbs0 lbs43,260 lbs
5Propylene115-07-137,498 lbs0 lbs37,874 lbs
6Propylene oxide75-56-915,147 lbs0 lbs33,169 lbs
7Ethylene74-85-115,549 lbs0 lbs15,549 lbs
8Dicyclopentadiene77-73-62,368 lbs0 lbs14,402 lbs
9Isoprene78-79-510,184 lbs0 lbs10,184 lbs
101,3-Butadiene106-99-03,263 lbs0 lbs3,263 lbs
11Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
12Xylene (mixed isomers)1330-20-7223 lbs0 lbs1,395 lbs
13Maleic anhydride108-31-61,147 lbs0 lbs1,147 lbs
14Benzene71-43-21,049 lbs0 lbs1,049 lbs
15Naphthalene91-20-3303 lbs0 lbs303 lbs
16Ethylene oxide75-21-8145 lbs0 lbs146 lbs
174,4'-Isopropylidenediphenol80-05-71 lbs0 lbs146 lbs
18Chlorobenzene108-90-7100 lbs0 lbs100 lbs
19Acrylic acid79-10-761 lbs0 lbs67 lbs
20Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
21Zinc compoundsN98213 lbs10 lbs33 lbs
22Propyleneimine75-55-832 lbs0 lbs32 lbs
23Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
24Chromium7440-47-34 lbs1 lbs5 lbs
25Acrylonitrile107-13-14 lbs0 lbs4 lbs
26Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
27Methyl acrylate96-33-32 lbs0 lbs2 lbs

Explore More Properties