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
1130 ELMHURST TRAILS LN SEABROOK 77586
Building Size
2,647 sqft
Total structure area from HCAD building records.
Elevation
12.56 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: 2.56 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)
2.29 million lbs
Extremely High
350.5x more than typical Houston property
≈ 114 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)
2.27 million lbs
Extremely High
471.1x 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)2,286,506 lbs2,271,771 lbs14,735 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,482,459 lbs212,622 lbs2,094 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 64 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (64 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
7Ammonia7664-41-766,792 lbs0 lbs66,792 lbs
8Molybdenum trioxide1313-27-551,068 lbs0 lbs51,068 lbs
9Toluene108-88-343,089 lbs0 lbs43,089 lbs
10Isoprene78-79-531,965 lbs0 lbs31,965 lbs
11Dicyclopentadiene77-73-620,009 lbs0 lbs20,009 lbs
12Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51145 lbs14,147 lbs14,192 lbs
13Benzene71-43-213,808 lbs0 lbs13,808 lbs
14Xylene (mixed isomers)1330-20-712,207 lbs0 lbs12,207 lbs
15n-Butyl alcohol71-36-36,334 lbs0 lbs6,334 lbs
16Dimethylamine124-40-35,764 lbs0 lbs5,764 lbs
17Maleic anhydride108-31-64,733 lbs0 lbs4,733 lbs
18Naphthalene91-20-34,655 lbs0 lbs4,655 lbs
19Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
20Vanadium compoundsN7703,122 lbs0 lbs3,137 lbs
21Formic acid64-18-62,892 lbs0 lbs2,892 lbs
22Zinc compoundsN9822,389 lbs346 lbs2,736 lbs
23Acetonitrile75-05-82,727 lbs0 lbs2,727 lbs
24Nickel And Nickel CompoundsN4952,238 lbs75 lbs2,313 lbs
25Ethylene glycol107-21-11,906 lbs0 lbs1,906 lbs
26Vanadium (except when contained in an alloy)7440-62-21,691 lbs0 lbs1,691 lbs
27Nickel compoundsN4951,389 lbs21 lbs1,410 lbs
28Ethylene oxide75-21-81,298 lbs0 lbs1,298 lbs
29Epichlorohydrin106-89-81,000 lbs0 lbs1,000 lbs
30o-Xylene95-47-6815 lbs0 lbs815 lbs
31Cobalt And Cobalt CompoundsN096741 lbs0 lbs741 lbs
32Nitric acid7697-37-2637 lbs0 lbs637 lbs
33Chlorobenzene108-90-7583 lbs0 lbs583 lbs
34Acrylic acid79-10-7548 lbs0 lbs548 lbs
35Acetaldehyde75-07-0504 lbs0 lbs504 lbs
36Cobalt compoundsN096454 lbs0 lbs454 lbs
37Cumene98-82-8369 lbs0 lbs369 lbs
38Diethanolamine111-42-2308 lbs0 lbs308 lbs
39Phosphorus (yellow or white)12185-10-3250 lbs0 lbs250 lbs
40Butyraldehyde123-72-8186 lbs0 lbs186 lbs
41Antimony And Antimony CompoundsN01085 lbs77 lbs161 lbs
42Formaldehyde50-00-0149 lbs0 lbs149 lbs
434,4'-Isopropylidenediphenol80-05-7141 lbs0 lbs141 lbs
44Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090102 lbs14 lbs116 lbs
45Styrene100-42-586 lbs0 lbs86 lbs
46Acrylonitrile107-13-185 lbs0 lbs85 lbs
47Ethylbenzene100-41-478 lbs0 lbs78 lbs
48Antimony compoundsN01044 lbs25 lbs69 lbs
49Lead And Lead CompoundsN42033 lbs3 lbs37 lbs
50Chromium compounds (except for chromite ore mined in the Transvaal Region)N09030 lbs4 lbs34 lbs
51Sodium nitrite7632-00-033 lbs0 lbs33 lbs
52Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
53Lead compoundsN42017 lbs1 lbs18 lbs
541,2,4-Trimethylbenzene95-63-618 lbs0 lbs18 lbs
55Copper compoundsN1000 lbs18 lbs18 lbs
56Triethylamine121-44-810 lbs0 lbs15 lbs
57Cadmium compoundsN07811 lbs0 lbs11 lbs
58Pyridine110-86-110 lbs0 lbs10 lbs
59Allyl alcohol107-18-610 lbs0 lbs10 lbs
60Chromium7440-47-37 lbs2 lbs9 lbs
61Methyl acrylate96-33-36 lbs0 lbs6 lbs
62Lead7439-92-12 lbs0 lbs2 lbs
63Biphenyl92-52-42 lbs0 lbs2 lbs
64N-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 34 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (34 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
4Vanadium (except when contained in an alloy)7440-62-2170 lbs0 lbs86,403 lbs
5Ethylene glycol107-21-110 lbs0 lbs58,071 lbs
6Toluene108-88-32,179 lbs0 lbs43,260 lbs
7Propylene115-07-137,498 lbs0 lbs37,874 lbs
8Cobalt And Cobalt CompoundsN096100 lbs0 lbs37,290 lbs
9Vanadium compoundsN77067 lbs0 lbs33,729 lbs
10Propylene oxide75-56-915,147 lbs0 lbs33,169 lbs
11Nickel And Nickel CompoundsN495341 lbs26 lbs32,206 lbs
12Ethylene74-85-115,549 lbs0 lbs15,549 lbs
13Dicyclopentadiene77-73-62,368 lbs0 lbs14,402 lbs
14Isoprene78-79-510,184 lbs0 lbs10,184 lbs
15Ammonia7664-41-76,167 lbs0 lbs6,173 lbs
161,3-Butadiene106-99-03,263 lbs0 lbs3,263 lbs
17Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,038 lbs2,230 lbs
18Xylene (mixed isomers)1330-20-7223 lbs0 lbs1,395 lbs
19Maleic anhydride108-31-61,147 lbs0 lbs1,147 lbs
20Benzene71-43-21,049 lbs0 lbs1,049 lbs
21Nitric acid7697-37-2633 lbs0 lbs633 lbs
22Naphthalene91-20-3303 lbs0 lbs303 lbs
23Ethylene oxide75-21-8145 lbs0 lbs146 lbs
244,4'-Isopropylidenediphenol80-05-71 lbs0 lbs146 lbs
25Chlorobenzene108-90-7100 lbs0 lbs100 lbs
26Acrylic acid79-10-761 lbs0 lbs67 lbs
27Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
28Zinc compoundsN98213 lbs10 lbs33 lbs
29Propyleneimine75-55-832 lbs0 lbs32 lbs
30Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
31Chromium7440-47-34 lbs1 lbs5 lbs
32Acrylonitrile107-13-14 lbs0 lbs4 lbs
33Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
34Methyl acrylate96-33-32 lbs0 lbs2 lbs

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