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
12907 DEER SAGE CT HOUSTON 77041
Building Size
2,338 sqft
Total structure area from HCAD building records.
Elevation
110.5 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: 100.5 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 73% 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)
336 thousand lbs
Very High
51.5x more than typical Houston property
≈ 17 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)
328 thousand lbs
Very High
68.1x 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)
8 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)336,109 lbs328,425 lbs7,685 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)147,132 lbs8,548 lbs477 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 73% 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):

Toluene, Styrene, 1-Bromopropane, 1,2,4-Trimethylbenzene, Xylene (mixed isomers)

View the full list of 25 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (25 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Toluene108-88-389,031 lbs0 lbs89,031 lbs
2Styrene100-42-553,277 lbs0 lbs54,435 lbs
31-Bromopropane106-94-550,819 lbs0 lbs50,819 lbs
41,2,4-Trimethylbenzene95-63-645,750 lbs0 lbs45,750 lbs
5Xylene (mixed isomers)1330-20-735,249 lbs0 lbs35,249 lbs
6Zinc compoundsN98212,661 lbs4,419 lbs17,080 lbs
7Ammonia7664-41-715,812 lbs0 lbs15,812 lbs
8NonylphenolN5305,359 lbs0 lbs5,359 lbs
9Nickel7440-02-04,992 lbs109 lbs5,101 lbs
10Manganese7439-96-52,942 lbs1,720 lbs4,662 lbs
11Copper7440-50-82,880 lbs1,264 lbs4,144 lbs
12Chromium7440-47-33,588 lbs161 lbs3,749 lbs
13Nitric acid7697-37-22,693 lbs0 lbs2,693 lbs
14Hydrogen fluoride7664-39-31,458 lbs0 lbs1,458 lbs
15Propylene115-07-11,079 lbs0 lbs1,079 lbs
16DiisocyanatesN120688 lbs0 lbs688 lbs
17Ethylene glycol107-21-1102 lbs0 lbs102 lbs
18Lead compoundsN42017 lbs11 lbs28 lbs
19Zinc (fume or dust)7440-66-613 lbs0 lbs13 lbs
20Cobalt7440-48-48 lbs0 lbs8 lbs
21Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs4 lbs
22Lead7439-92-14 lbs0 lbs4 lbs
23Selenium7782-49-22 lbs0 lbs2 lbs
24Lead And Lead CompoundsN4201 lbs1 lbs2 lbs
25Aluminum (fume or dust)7429-90-51 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Zinc compounds, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ethylene glycol, 1-Bromopropane, Lead 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)
1Zinc compoundsN982187 lbs476 lbs93,397 lbs
2Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs28,746 lbs
3Ethylene glycol107-21-10 lbs0 lbs14,284 lbs
41-Bromopropane106-94-53,844 lbs0 lbs3,844 lbs
5Lead compoundsN4200 lbs0 lbs1,190 lbs
6Propylene115-07-11,059 lbs0 lbs1,059 lbs
71,2,4-Trimethylbenzene95-63-61,000 lbs0 lbs1,000 lbs
8Toluene108-88-31,000 lbs0 lbs1,000 lbs
9Nickel7440-02-0466 lbs0 lbs972 lbs
10Chromium7440-47-3295 lbs0 lbs735 lbs
11Manganese7439-96-5162 lbs0 lbs280 lbs
12Hydrogen fluoride7664-39-3265 lbs0 lbs265 lbs
13Copper7440-50-8182 lbs0 lbs252 lbs
14Nitric acid7697-37-281 lbs0 lbs81 lbs
15Aluminum (fume or dust)7429-90-51 lbs0 lbs18 lbs
16DiisocyanatesN1207 lbs0 lbs7 lbs
17Lead And Lead CompoundsN4200 lbs1 lbs1 lbs

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