Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 7407 Keller St, Houston, TX 77012

HCAD #0691080040018
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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
7407 Keller St, Houston, TX 77012
Building Size
1,092sqft
Total structure area from HCAD building records.
Elevation
31.11 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)
40.95 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
149.9 acres
50.8% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$38,781
Based on HCAD building value of $59,664.
Depth-Damage (Neighborhood)
$44,050
Based on neighborhood replacement cost.
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
12.5th percentile
Property Pollution Ranking
High
Higher pollution than 88% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
3.94 millionlbs
Extremely High
604.0x more than typical Houston property
≈ 197 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.83 millionlbs
Extremely High
794.6x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
109 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
6
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)3,940,437 lbs3,831,833 lbs108,604 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)304,101 lbs288,794 lbs15,308 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 88% 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 chemicals released near this property (past 10 years):
Styrene, Ammonia, 1,3-Butadiene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methyl tert-butyl ether
View the full list of 44 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(44 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Styrene100-42-51,723,650 lbs7,271 lbs1,730,921 lbs
2Ammonia7664-41-7815,977 lbs29,897 lbs845,874 lbs
31,3-Butadiene106-99-0431,071 lbs1 lbs431,072 lbs
4Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9376,938 lbs0 lbs376,938 lbs
5Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
6Methanol67-56-156,340 lbs39,325 lbs95,666 lbs
7Xylene (mixed isomers)1330-20-765,543 lbs0 lbs65,543 lbs
8N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
9Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs21,954 lbs21,954 lbs
10tert-Butyl alcohol75-65-015,278 lbs0 lbs15,278 lbs
11Ethylene glycol107-21-114,690 lbs0 lbs14,690 lbs
12Propylene115-07-114,432 lbs0 lbs14,432 lbs
131,4-Dioxane123-91-110,779 lbs0 lbs10,779 lbs
14Sodium nitrite7632-00-00 lbs9,470 lbs9,470 lbs
15Hydrogen sulfide7783-06-46,306 lbs0 lbs6,306 lbs
16Ethylene74-85-12,621 lbs0 lbs2,621 lbs
17Phthalic anhydride85-44-92,000 lbs0 lbs2,000 lbs
18Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
19Manganese7439-96-51,000 lbs331 lbs1,331 lbs
20Acetaldehyde75-07-01,011 lbs0 lbs1,011 lbs
21Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0999 lbs0 lbs999 lbs
22Lead7439-92-1622 lbs256 lbs878 lbs
231,1,1,2-Tetrachloroethane630-20-6434 lbs0 lbs434 lbs
24Carbon disulfide75-15-0351 lbs0 lbs351 lbs
25Chlorine7782-50-5120 lbs0 lbs120 lbs
26Dimethylamine124-40-390 lbs0 lbs90 lbs
27Lead And Lead CompoundsN42063 lbs10 lbs73 lbs
28Vanadium compoundsN77065 lbs0 lbs65 lbs
29Boron trifluoride7637-07-236 lbs0 lbs36 lbs
30Allyl alcohol107-18-634 lbs0 lbs34 lbs
31Methoxone sodium salt3653-48-320 lbs0 lbs20 lbs
32Triethylamine121-44-817 lbs0 lbs17 lbs
33Acrolein107-02-813 lbs0 lbs13 lbs
34Hydroquinone123-31-99 lbs0 lbs9 lbs
35Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
36Mercury compoundsN4583 lbs1 lbs4 lbs
37Pyridine110-86-13 lbs0 lbs3 lbs
38Benzene71-43-23 lbs0 lbs3 lbs
39Chloroethane75-00-32 lbs0 lbs2 lbs
40p-Cresol106-44-52 lbs0 lbs2 lbs
41Trichloroethylene79-01-61 lbs0 lbs1 lbs
422,4-Diaminotoluene95-80-71 lbs0 lbs1 lbs
43Ethylbenzene100-41-41 lbs0 lbs1 lbs
44Cyclohexane110-82-71 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Styrene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), 1,3-Butadiene, Ammonia, Methanol
View the full list of 24 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(24 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Styrene100-42-5130,675 lbs291 lbs130,967 lbs
2Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,698 lbs0 lbs50,698 lbs
31,3-Butadiene106-99-030,943 lbs0 lbs30,943 lbs
4Ammonia7664-41-729,757 lbs78 lbs29,834 lbs
5Methanol67-56-17,001 lbs14,541 lbs21,542 lbs
6Methyl tert-butyl ether1634-04-418,336 lbs0 lbs18,336 lbs
7Xylene (mixed isomers)1330-20-710,496 lbs0 lbs10,496 lbs
8Ethylene glycol107-21-15,094 lbs0 lbs5,094 lbs
9N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,641 lbs
10Propylene115-07-11,091 lbs0 lbs1,091 lbs
11tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
12Hydrogen sulfide7783-06-4592 lbs0 lbs592 lbs
13Sodium nitrite7632-00-00 lbs371 lbs371 lbs
14Ethylene74-85-1364 lbs0 lbs364 lbs
151,4-Dioxane123-91-1328 lbs0 lbs328 lbs
16Carbon disulfide75-15-0241 lbs0 lbs241 lbs
17Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
181,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
19Lead7439-92-120 lbs22 lbs42 lbs
20Lead And Lead CompoundsN42031 lbs5 lbs36 lbs
21Dimethylamine124-40-323 lbs0 lbs23 lbs
22Vinyl acetate108-05-45 lbs0 lbs5 lbs
23Boron trifluoride7637-07-21 lbs0 lbs1 lbs
24Acetaldehyde75-07-01 lbs0 lbs1 lbs
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