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
13303 MCDOYLE HOUSTON 77048
Elevation
49.98 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: 39.98 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
Moderate
Higher pollution than 57% 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)
25 thousand lbs
Above Typical
3.8x more than typical Houston property
≈ 1 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)
25 thousand lbs
Above Typical
5.2x 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)
61 lbs
Above Typical
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)24,963 lbs24,902 lbs61 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)182,474 lbs12,508 lbs0 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 57% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 40-49th percentile (slightly higher than average).

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

Xylene (mixed isomers), Styrene, Formic acid, Ethylene glycol, Ethylbenzene

View the full list of 19 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (19 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Xylene (mixed isomers)1330-20-710,453 lbs0 lbs10,453 lbs
2Styrene100-42-54,199 lbs0 lbs4,199 lbs
3Formic acid64-18-62,598 lbs0 lbs3,355 lbs
4Ethylene glycol107-21-11,562 lbs0 lbs1,562 lbs
5Ethylbenzene100-41-41,452 lbs0 lbs1,452 lbs
6Manganese7439-96-5935 lbs46 lbs981 lbs
7Certain glycol ethersN230945 lbs0 lbs945 lbs
8Propylene115-07-1639 lbs0 lbs639 lbs
9Methanol67-56-1558 lbs0 lbs558 lbs
10Toluene108-88-3510 lbs0 lbs510 lbs
11n-Hexane110-54-3500 lbs0 lbs500 lbs
12Nitric acid7697-37-2242 lbs0 lbs242 lbs
13Diethanolamine111-42-2205 lbs0 lbs205 lbs
14Tetrachloroethylene127-18-457 lbs0 lbs57 lbs
15Cyclohexane110-82-731 lbs0 lbs31 lbs
16Lead compoundsN4200 lbs7 lbs29 lbs
17Chromium7440-47-312 lbs5 lbs17 lbs
18Nickel7440-02-02 lbs3 lbs5 lbs
191,2-Dichlorobenzene95-50-11 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Diethanolamine, Chromium, Nickel, Mixture, Xylene (mixed isomers)

View the full list of 18 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (18 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Diethanolamine111-42-20 lbs0 lbs59,628 lbs
2Chromium7440-47-37 lbs0 lbs53,631 lbs
3Nickel7440-02-02 lbs0 lbs27,758 lbs
4MixtureMIXTURE0 lbs0 lbs18,450 lbs
5Xylene (mixed isomers)1330-20-79,953 lbs0 lbs9,953 lbs
6Manganese7439-96-5262 lbs0 lbs4,994 lbs
7Nitrilotriacetic acid trisodium salt5064-31-30 lbs0 lbs4,472 lbs
8Ethylbenzene100-41-41,452 lbs0 lbs1,452 lbs
9Sodium nitrite7632-00-00 lbs0 lbs920 lbs
10Toluene108-88-3260 lbs0 lbs340 lbs
11n-Hexane110-54-3250 lbs0 lbs250 lbs
12Formic acid64-18-6239 lbs0 lbs239 lbs
13Methanol67-56-146 lbs0 lbs126 lbs
14Ethylene glycol107-21-11 lbs0 lbs81 lbs
15Certain glycol ethersN2300 lbs0 lbs80 lbs
16Lead compoundsN4200 lbs0 lbs65 lbs
17Tetrachloroethylene127-18-436 lbs0 lbs36 lbs
18Mercury compoundsN4580 lbs0 lbs1 lbs

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