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
4214 LAKE GROVE DR SEABROOK 77586
Building Size
2,567 sqft
Total structure area from HCAD building records.
Elevation
13.34 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: 3.34 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 84% 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)
1.99 million lbs
Extremely High
305.1x more than typical Houston property
≈ 100 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)
1.98 million lbs
Extremely High
409.8x 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)1,990,744 lbs1,976,232 lbs14,513 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,361,735 lbs193,169 lbs2,064 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 84% 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, Ethylene, Methanol

View the full list of 51 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (51 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0747,259 lbs0 lbs747,259 lbs
2Propylene115-07-1550,414 lbs0 lbs550,414 lbs
3Propylene oxide75-56-9214,725 lbs0 lbs214,725 lbs
4Ethylene74-85-1163,241 lbs0 lbs163,241 lbs
5Methanol67-56-186,700 lbs0 lbs86,700 lbs
6Ammonia7664-41-766,792 lbs0 lbs66,792 lbs
7Molybdenum trioxide1313-27-551,068 lbs0 lbs51,068 lbs
8Dicyclopentadiene77-73-619,800 lbs0 lbs19,800 lbs
9Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51145 lbs14,147 lbs14,192 lbs
10Benzene71-43-213,808 lbs0 lbs13,808 lbs
111,3-Butadiene106-99-013,537 lbs0 lbs13,537 lbs
12Toluene108-88-312,239 lbs0 lbs12,239 lbs
13n-Butyl alcohol71-36-36,334 lbs0 lbs6,334 lbs
14Naphthalene91-20-34,655 lbs0 lbs4,655 lbs
15Vanadium compoundsN7703,122 lbs0 lbs3,137 lbs
16Formic acid64-18-62,892 lbs0 lbs2,892 lbs
17Acetonitrile75-05-82,727 lbs0 lbs2,727 lbs
18Zinc compoundsN9822,334 lbs233 lbs2,567 lbs
19Nickel And Nickel CompoundsN4952,238 lbs75 lbs2,313 lbs
20Ethylene glycol107-21-11,906 lbs0 lbs1,906 lbs
21Vanadium (except when contained in an alloy)7440-62-21,691 lbs0 lbs1,691 lbs
22Nickel compoundsN4951,389 lbs21 lbs1,410 lbs
23Ethylene oxide75-21-81,298 lbs0 lbs1,298 lbs
24o-Xylene95-47-6815 lbs0 lbs815 lbs
25Cobalt And Cobalt CompoundsN096741 lbs0 lbs741 lbs
26Nitric acid7697-37-2637 lbs0 lbs637 lbs
27Chlorobenzene108-90-7583 lbs0 lbs583 lbs
28Acrylic acid79-10-7548 lbs0 lbs548 lbs
29Acetaldehyde75-07-0504 lbs0 lbs504 lbs
30Cobalt compoundsN096454 lbs0 lbs454 lbs
31Cumene98-82-8369 lbs0 lbs369 lbs
32Diethanolamine111-42-2308 lbs0 lbs308 lbs
33Phosphorus (yellow or white)12185-10-3250 lbs0 lbs250 lbs
34Butyraldehyde123-72-8186 lbs0 lbs186 lbs
354,4'-Isopropylidenediphenol80-05-7141 lbs0 lbs141 lbs
36Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090101 lbs14 lbs115 lbs
37Styrene100-42-586 lbs0 lbs86 lbs
38Acrylonitrile107-13-185 lbs0 lbs85 lbs
39Ethylbenzene100-41-478 lbs0 lbs78 lbs
40Chromium compounds (except for chromite ore mined in the Transvaal Region)N09029 lbs4 lbs33 lbs
41Sodium nitrite7632-00-033 lbs0 lbs33 lbs
42Formaldehyde50-00-025 lbs0 lbs25 lbs
431,2,4-Trimethylbenzene95-63-618 lbs0 lbs18 lbs
44Copper compoundsN1000 lbs18 lbs18 lbs
45Allyl alcohol107-18-610 lbs0 lbs10 lbs
46Pyridine110-86-110 lbs0 lbs10 lbs
47Lead compoundsN4202 lbs0 lbs2 lbs
48Lead7439-92-12 lbs0 lbs2 lbs
49Biphenyl92-52-42 lbs0 lbs2 lbs
50Lead And Lead CompoundsN4201 lbs0 lbs1 lbs
51N-Methyl-2-pyrrolidone872-50-41 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

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

View the full list of 24 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (24 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1tert-Butyl alcohol75-65-0100,711 lbs0 lbs615,843 lbs
2Molybdenum trioxide1313-27-54,957 lbs0 lbs227,922 lbs
3Methanol67-56-15,954 lbs0 lbs156,625 lbs
4Vanadium (except when contained in an alloy)7440-62-2170 lbs0 lbs86,403 lbs
5Ethylene glycol107-21-110 lbs0 lbs58,071 lbs
6Propylene115-07-137,498 lbs0 lbs37,874 lbs
7Cobalt And Cobalt CompoundsN096100 lbs0 lbs37,290 lbs
8Vanadium compoundsN77067 lbs0 lbs33,729 lbs
9Propylene oxide75-56-915,147 lbs0 lbs33,169 lbs
10Nickel And Nickel CompoundsN495341 lbs26 lbs32,206 lbs
11Ethylene74-85-115,549 lbs0 lbs15,549 lbs
12Dicyclopentadiene77-73-62,368 lbs0 lbs14,368 lbs
13Ammonia7664-41-76,167 lbs0 lbs6,173 lbs
14Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,038 lbs2,230 lbs
15Benzene71-43-21,049 lbs0 lbs1,049 lbs
16Toluene108-88-31,026 lbs0 lbs1,026 lbs
171,3-Butadiene106-99-0808 lbs0 lbs808 lbs
18Nitric acid7697-37-2633 lbs0 lbs633 lbs
19Naphthalene91-20-3303 lbs0 lbs303 lbs
20Ethylene oxide75-21-8145 lbs0 lbs146 lbs
214,4'-Isopropylidenediphenol80-05-71 lbs0 lbs146 lbs
22Chlorobenzene108-90-7100 lbs0 lbs100 lbs
23Acrylic acid79-10-761 lbs0 lbs67 lbs
24Acrylonitrile107-13-14 lbs0 lbs4 lbs

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