Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 111 Alliant Dr, Houston, TX 77032

HCAD #1200020010010
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🌍Environmental Assessment

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.

🌊Flood Risk Analysis
FEMA Zone X
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
111 Alliant Dr, Houston, TX 77032
Elevation
71.69 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
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 High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
81.53 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
193.0 acres
65.5% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
Analysis Method
COG Combined 5000 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 Flooded
Flood Depth: 9.84 feet
Severity
Severe
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.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
50.2th percentile
Property Pollution Ranking
Low
Lower pollution than 50% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
6 thousandlbs
Typical
1.1x less than typical Houston property
Air Pollution (10 Years)
5 thousandlbs
Typical
1.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
898lbs
High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
8
Industrial facilities within 2 miles
💡
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)5,748 lbs4,850 lbs898 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)191 lbs115 lbs75 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%
Lower pollution than 50% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 50-59th percentile (average).
📋
Top chemicals released near this property (past 10 years):
Nickel, Ethylene glycol, Chromium, Manganese, Copper
View the full list of 9 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(9 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Nickel7440-02-02,089 lbs131 lbs2,250 lbs
2Ethylene glycol107-21-11,609 lbs250 lbs1,859 lbs
3Chromium7440-47-3782 lbs217 lbs1,035 lbs
4Manganese7439-96-5252 lbs131 lbs413 lbs
5Copper7440-50-854 lbs87 lbs147 lbs
6Aluminum oxide (fibrous forms)1344-28-15 lbs68 lbs73 lbs
7Chromium compounds (except for chromite ore mined in the Transvaal Region)N09042 lbs1 lbs43 lbs
8Manganese compoundsN45016 lbs13 lbs28 lbs
9Lead compoundsN4201 lbs1 lbs2 lbs
📋
Top chemicals released near this property (2024 only):
Aluminum oxide (fibrous forms), Ethylene glycol, Chromium compounds (except for chromite ore mined in the Transvaal Region), Manganese compounds, Chromium
View the full list of 8 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(8 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Aluminum oxide (fibrous forms)1344-28-13 lbs68 lbs70 lbs
2Ethylene glycol107-21-159 lbs0 lbs59 lbs
3Chromium compounds (except for chromite ore mined in the Transvaal Region)N09020 lbs1 lbs21 lbs
4Manganese compoundsN4507 lbs7 lbs14 lbs
5Chromium7440-47-39 lbs0 lbs9 lbs
6Nickel7440-02-09 lbs0 lbs9 lbs
7Manganese7439-96-57 lbs0 lbs7 lbs
8Copper7440-50-82 lbs0 lbs2 lbs
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