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
2450 APPELT DR HOUSTON 77015
Elevation
14.71 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 4.71 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.

  • 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.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
High
Higher pollution than 81% 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 million lbs
Extremely High
153.7x more than typical Houston property
≈ 50 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)
997 thousand lbs
Extremely High
206.7x 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)
6 thousand lbs
Very 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)1,002,702 lbs996,661 lbs6,041 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)165,518 lbs139,904 lbs11 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 81% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile (top 25% most polluted).

Top chemicals released near this property (past 10 years):

Ethylene glycol, 1,2,4-Trimethylbenzene, Chlorine, Xylene (mixed isomers), n-Butyl alcohol

View the full list of 35 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (35 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene glycol107-21-1342,485 lbs0 lbs342,485 lbs
21,2,4-Trimethylbenzene95-63-6131,502 lbs0 lbs131,502 lbs
3Chlorine7782-50-591,683 lbs0 lbs91,683 lbs
4Xylene (mixed isomers)1330-20-766,479 lbs0 lbs66,479 lbs
5n-Butyl alcohol71-36-366,005 lbs0 lbs66,005 lbs
6Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-056,509 lbs0 lbs56,509 lbs
7Chlorodifluoromethane (HCFC-22)75-45-646,271 lbs0 lbs46,271 lbs
8Certain glycol ethersN23035,260 lbs0 lbs35,260 lbs
9Chlorothalonil1897-45-629,974 lbs83 lbs30,057 lbs
10Ammonia7664-41-720,534 lbs3,477 lbs24,011 lbs
11Naphthalene91-20-320,173 lbs0 lbs20,174 lbs
12Ethylbenzene100-41-415,682 lbs0 lbs15,682 lbs
13Carbon tetrachloride56-23-514,345 lbs12 lbs14,358 lbs
14Cyclohexane110-82-712,697 lbs0 lbs12,697 lbs
15m-Xylene108-38-311,963 lbs54 lbs12,017 lbs
16n-Hexane110-54-310,259 lbs0 lbs10,259 lbs
17Vanadium compoundsN7706,236 lbs2,153 lbs8,389 lbs
18Benzene71-43-24,508 lbs0 lbs4,508 lbs
19Biphenyl92-52-43,407 lbs0 lbs3,407 lbs
20Hydrogen cyanide74-90-83,231 lbs0 lbs3,231 lbs
21Toluene108-88-32,431 lbs0 lbs2,431 lbs
22Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901,236 lbs41 lbs1,277 lbs
23Methanol67-56-11,071 lbs0 lbs1,071 lbs
24Hexachlorobenzene118-74-11,002 lbs1 lbs1,003 lbs
25Chromium7440-47-3879 lbs41 lbs920 lbs
26Nickel7440-02-0386 lbs61 lbs447 lbs
27Antimony compoundsN010235 lbs0 lbs235 lbs
28Cumene98-82-8107 lbs0 lbs108 lbs
29Copper7440-50-815 lbs43 lbs58 lbs
30Manganese7439-96-524 lbs22 lbs46 lbs
31Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs40 lbs40 lbs
32Dioxin and dioxin-like compoundsN15039 lbs0 lbs39 lbs
33Lead compoundsN42025 lbs4 lbs29 lbs
34Lead7439-92-13 lbs7 lbs10 lbs
35Zinc compoundsN9825 lbs0 lbs6 lbs

Top chemicals released near this property (2024 only):

Ethylene glycol, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), n-Butyl alcohol, 1,2,4-Trimethylbenzene, Xylene (mixed isomers)

View the full list of 17 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (17 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene glycol107-21-1110,903 lbs0 lbs110,903 lbs
2Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs11 lbs15,941 lbs
3n-Butyl alcohol71-36-39,350 lbs0 lbs14,921 lbs
41,2,4-Trimethylbenzene95-63-67,218 lbs0 lbs7,218 lbs
5Xylene (mixed isomers)1330-20-74,440 lbs0 lbs7,051 lbs
6Naphthalene91-20-32,392 lbs0 lbs3,782 lbs
7Certain glycol ethersN2302,726 lbs0 lbs2,726 lbs
8Ethylbenzene100-41-41,348 lbs0 lbs1,366 lbs
9Chlorine7782-50-5428 lbs0 lbs428 lbs
10n-Hexane110-54-3424 lbs0 lbs424 lbs
11Cyclohexane110-82-7254 lbs0 lbs308 lbs
12Toluene108-88-3143 lbs0 lbs152 lbs
13Chromium7440-47-3136 lbs0 lbs136 lbs
14Benzene71-43-282 lbs0 lbs91 lbs
15Nickel7440-02-036 lbs0 lbs36 lbs
16Cumene98-82-825 lbs0 lbs27 lbs
17Lead And Lead CompoundsN4200 lbs0 lbs7 lbs

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