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
2222 APPELT DR HOUSTON 77015
Elevation
24.9 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
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: 14.9 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)
2.12 million lbs
Extremely High
324.9x more than typical Houston property
≈ 106 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)
2.11 million lbs
Extremely High
438.1x 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)
7 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)2,119,460 lbs2,112,558 lbs6,903 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)276,371 lbs250,707 lbs41 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):

Ethylene, Ethylene glycol, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Aluminum (fume or dust), 1,2,4-Trimethylbenzene

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)
1Ethylene74-85-1497,353 lbs0 lbs497,353 lbs
2Ethylene glycol107-21-1344,304 lbs0 lbs344,304 lbs
3Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0199,665 lbs0 lbs199,665 lbs
4Aluminum (fume or dust)7429-90-5132,303 lbs0 lbs132,313 lbs
51,2,4-Trimethylbenzene95-63-6131,502 lbs0 lbs131,502 lbs
6n-Hexane110-54-3110,624 lbs51 lbs110,715 lbs
7Chlorine7782-50-595,339 lbs0 lbs95,344 lbs
8n-Butyl alcohol71-36-370,037 lbs0 lbs70,037 lbs
9Xylene (mixed isomers)1330-20-767,818 lbs0 lbs67,818 lbs
10Chlorodifluoromethane (HCFC-22)75-45-646,271 lbs0 lbs46,271 lbs
11Ammonia7664-41-740,809 lbs3,477 lbs44,285 lbs
12Certain glycol ethersN23035,260 lbs0 lbs35,260 lbs
13Cyclohexane110-82-734,808 lbs51 lbs34,909 lbs
14o-Toluidine95-53-429,521 lbs51 lbs30,113 lbs
15Chlorothalonil1897-45-629,974 lbs83 lbs30,057 lbs
16Isobutyraldehyde78-84-228,404 lbs0 lbs28,404 lbs
17Propylene115-07-128,044 lbs0 lbs28,044 lbs
18Butyraldehyde123-72-823,130 lbs0 lbs23,130 lbs
19Toluene108-88-320,862 lbs530 lbs21,428 lbs
20Naphthalene91-20-320,174 lbs0 lbs20,175 lbs
21Ethylbenzene100-41-415,941 lbs0 lbs15,941 lbs
22Chloromethane74-87-315,422 lbs31 lbs15,478 lbs
23Chloroethane75-00-314,708 lbs41 lbs14,784 lbs
24Carbon tetrachloride56-23-514,345 lbs12 lbs14,358 lbs
25Diaminotoluene (mixed isomers)25376-45-812,695 lbs51 lbs12,797 lbs
26m-Xylene108-38-311,963 lbs54 lbs12,017 lbs
27Vanadium compoundsN7706,236 lbs2,153 lbs8,389 lbs
28Aniline62-53-36,824 lbs25 lbs7,119 lbs
29Biphenyl92-52-46,522 lbs15 lbs6,552 lbs
30Benzene71-43-25,382 lbs0 lbs5,382 lbs
31Phthalic anhydride85-44-93,545 lbs0 lbs3,545 lbs
32Hydrogen cyanide74-90-83,231 lbs0 lbs3,231 lbs
33Zinc compoundsN9822,924 lbs15 lbs2,955 lbs
34o-Xylene95-47-61,330 lbs0 lbs1,330 lbs
35Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901,236 lbs41 lbs1,277 lbs
36Methanol67-56-11,071 lbs0 lbs1,071 lbs
37Hexachlorobenzene118-74-11,002 lbs1 lbs1,003 lbs
381,3-Butadiene106-99-0752 lbs0 lbs752 lbs
39Maleic anhydride108-31-6640 lbs0 lbs640 lbs
40Antimony compoundsN010235 lbs0 lbs235 lbs
41Nickel7440-02-071 lbs42 lbs113 lbs
42Cumene98-82-8107 lbs0 lbs108 lbs
43Chromium7440-47-362 lbs15 lbs77 lbs
44Copper7440-50-815 lbs43 lbs58 lbs
45Lead compoundsN42028 lbs21 lbs50 lbs
46Manganese7439-96-524 lbs22 lbs46 lbs
47Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs40 lbs40 lbs
48Dioxin and dioxin-like compoundsN15039 lbs0 lbs39 lbs
49Lead7439-92-14 lbs20 lbs23 lbs
50Lead And Lead CompoundsN4201 lbs16 lbs18 lbs
51Hydrogen sulfide7783-06-41 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Ethylene glycol, Ethylene, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), n-Butyl alcohol

View the full list of 26 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (26 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene glycol107-21-1111,461 lbs0 lbs111,461 lbs
2Ethylene74-85-143,785 lbs0 lbs43,785 lbs
3Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-019,612 lbs0 lbs19,612 lbs
4Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs11 lbs15,941 lbs
5n-Butyl alcohol71-36-39,988 lbs0 lbs15,559 lbs
6Aluminum (fume or dust)7429-90-513,724 lbs0 lbs13,724 lbs
7n-Hexane110-54-38,159 lbs5 lbs8,169 lbs
81,2,4-Trimethylbenzene95-63-67,218 lbs0 lbs7,218 lbs
9Xylene (mixed isomers)1330-20-74,471 lbs0 lbs7,083 lbs
10Isobutyraldehyde78-84-24,431 lbs0 lbs4,431 lbs
11Propylene115-07-14,176 lbs0 lbs4,176 lbs
12o-Toluidine95-53-44,008 lbs5 lbs4,018 lbs
13Naphthalene91-20-32,392 lbs0 lbs3,782 lbs
14Certain glycol ethersN2302,726 lbs0 lbs2,726 lbs
15Butyraldehyde123-72-82,507 lbs0 lbs2,507 lbs
16Cyclohexane110-82-72,334 lbs5 lbs2,398 lbs
17Chloroethane75-00-32,102 lbs5 lbs2,107 lbs
18Chloromethane74-87-31,938 lbs5 lbs1,943 lbs
19Diaminotoluene (mixed isomers)25376-45-81,821 lbs5 lbs1,831 lbs
20Ammonia7664-41-71,819 lbs0 lbs1,819 lbs
21Ethylbenzene100-41-41,348 lbs0 lbs1,366 lbs
22Chlorine7782-50-5438 lbs0 lbs438 lbs
23Toluene108-88-3143 lbs0 lbs152 lbs
24Benzene71-43-282 lbs0 lbs91 lbs
25Cumene98-82-825 lbs0 lbs27 lbs
26Lead And Lead CompoundsN4200 lbs0 lbs7 lbs

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