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
2402 COMAL DR DEER PARK 77536
Building Size
2,459 sqft
Total structure area from HCAD building records.
Elevation
27.61 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: 17.61 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 89% 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)
7.04 million lbs
Extremely High
1079.2x more than typical Houston property
≈ 352 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)
1.74 million lbs
Extremely High
361.0x 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)
5.3 million 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)7,041,286 lbs1,740,684 lbs5,300,603 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)662,209 lbs155,457 lbs495,502 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 89% 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene, n-Hexane, Ethylene, Certain glycol ethers

View the full list of 29 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (29 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs5,300,196 lbs5,300,196 lbs
2Propylene115-07-1891,483 lbs0 lbs891,483 lbs
3n-Hexane110-54-3433,619 lbs0 lbs433,619 lbs
4Ethylene74-85-1287,527 lbs0 lbs287,527 lbs
5Certain glycol ethersN23064,069 lbs0 lbs64,069 lbs
6Chlorobenzene108-90-716,036 lbs0 lbs16,036 lbs
7Chloroethane75-00-313,375 lbs0 lbs13,375 lbs
8Cyclohexane110-82-712,948 lbs0 lbs12,948 lbs
9Zinc compoundsN9826,608 lbs407 lbs7,015 lbs
10Toluene108-88-35,877 lbs0 lbs5,877 lbs
11DiisocyanatesN1204,282 lbs0 lbs4,282 lbs
12Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
13Isoprene78-79-5923 lbs0 lbs923 lbs
14Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
15Acrylic acid79-10-7348 lbs0 lbs348 lbs
16Chloromethane74-87-3326 lbs0 lbs326 lbs
17Nitric acid7697-37-2260 lbs0 lbs260 lbs
18Boron trifluoride7637-07-2239 lbs0 lbs239 lbs
19Diethanolamine111-42-257 lbs0 lbs57 lbs
20Methyl acrylate96-33-347 lbs0 lbs47 lbs
21Ethyl acrylate140-88-535 lbs0 lbs35 lbs
22Triethylamine121-44-834 lbs0 lbs34 lbs
23Butyl acrylate141-32-228 lbs0 lbs28 lbs
24Manganese compoundsN45026 lbs0 lbs26 lbs
25Methyl methacrylate80-62-625 lbs0 lbs25 lbs
26Diphenylamine122-39-410 lbs0 lbs10 lbs
271,2,4-Trimethylbenzene95-63-610 lbs0 lbs10 lbs
28Xylene (mixed isomers)1330-20-76 lbs0 lbs6 lbs
29N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene, n-Hexane, Ethylene, Polycyclic aromatic compounds

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)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs495,479 lbs495,479 lbs
2Propylene115-07-183,354 lbs0 lbs83,354 lbs
3n-Hexane110-54-331,953 lbs0 lbs33,295 lbs
4Ethylene74-85-130,290 lbs0 lbs30,290 lbs
5Polycyclic aromatic compoundsN5900 lbs0 lbs3,621 lbs
6Zinc compoundsN982426 lbs23 lbs3,095 lbs
7Certain glycol ethersN2303,026 lbs0 lbs3,026 lbs
8Cyclohexane110-82-71,566 lbs0 lbs2,461 lbs
9Toluene108-88-31,372 lbs0 lbs2,277 lbs
10DiisocyanatesN1201,843 lbs0 lbs1,843 lbs
11Ethyl acrylate140-88-56 lbs0 lbs1,809 lbs
12Chloroethane75-00-31,429 lbs0 lbs1,429 lbs
13Acrylic acid79-10-7127 lbs0 lbs127 lbs
14Benzo[g,h,i]perylene191-24-20 lbs0 lbs38 lbs
15Aluminum (fume or dust)7429-90-526 lbs0 lbs26 lbs
16Nitric acid7697-37-220 lbs0 lbs20 lbs
17Boron trifluoride7637-07-220 lbs0 lbs20 lbs

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