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
7018 KELLER ST HOUSTON 77087
Building Size
1,611 sqft
Total structure area from HCAD building records.
Elevation
33.28 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: 23.28 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 83% 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)
1.53 million lbs
Extremely High
234.7x more than typical Houston property
≈ 77 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)
1.49 million lbs
Extremely High
308.4x 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)
44 thousand 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)1,530,974 lbs1,487,288 lbs43,686 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)789,844 lbs117,851 lbs14,568 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 83% 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):

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Methyl tert-butyl ether, 1,3-Butadiene, Methanol

View the full list of 50 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (50 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9376,938 lbs0 lbs376,938 lbs
2Ammonia7664-41-7331,114 lbs3,674 lbs334,788 lbs
3Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
41,3-Butadiene106-99-0255,579 lbs0 lbs255,579 lbs
5Methanol67-56-156,340 lbs39,325 lbs95,666 lbs
6Xylene (mixed isomers)1330-20-765,543 lbs0 lbs65,543 lbs
7N-Methyl-2-pyrrolidone872-50-437,616 lbs0 lbs37,616 lbs
8N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
9tert-Butyl alcohol75-65-015,278 lbs0 lbs15,278 lbs
10Ethylene glycol107-21-114,690 lbs0 lbs14,690 lbs
11Propylene115-07-114,432 lbs0 lbs14,432 lbs
121,4-Dioxane123-91-110,779 lbs0 lbs10,779 lbs
13Hydrogen sulfide7783-06-46,306 lbs0 lbs6,306 lbs
14Ethylene74-85-12,621 lbs0 lbs2,621 lbs
15Phthalic anhydride85-44-92,000 lbs0 lbs2,000 lbs
16Certain glycol ethersN2301,884 lbs0 lbs1,884 lbs
17Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
18Manganese7439-96-51,000 lbs331 lbs1,331 lbs
19Acetaldehyde75-07-01,011 lbs0 lbs1,011 lbs
20Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0999 lbs0 lbs999 lbs
21Lead7439-92-1622 lbs256 lbs878 lbs
221,1,1,2-Tetrachloroethane630-20-6434 lbs0 lbs434 lbs
23Carbon disulfide75-15-0351 lbs0 lbs351 lbs
24Dimethylamine124-40-390 lbs0 lbs90 lbs
25Lead And Lead CompoundsN42063 lbs10 lbs73 lbs
26Vanadium compoundsN77065 lbs0 lbs65 lbs
27Zinc compoundsN98238 lbs0 lbs38 lbs
28Boron trifluoride7637-07-236 lbs0 lbs36 lbs
29Allyl alcohol107-18-634 lbs0 lbs34 lbs
30Nitric acid7697-37-224 lbs0 lbs24 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
35Nickel compoundsN4958 lbs0 lbs8 lbs
36Mercury compoundsN4583 lbs1 lbs4 lbs
37Cyanide compoundsN1064 lbs0 lbs4 lbs
38Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
39Pyridine110-86-13 lbs0 lbs3 lbs
40Benzene71-43-23 lbs0 lbs3 lbs
41Copper compoundsN1002 lbs0 lbs2 lbs
42Nickel And Nickel CompoundsN4952 lbs0 lbs2 lbs
43Chromium compounds (except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs2 lbs
44Chloroethane75-00-32 lbs0 lbs2 lbs
45p-Cresol106-44-52 lbs0 lbs2 lbs
462,4-Diaminotoluene95-80-71 lbs0 lbs1 lbs
47Manganese And Manganese CompoundsN4501 lbs0 lbs1 lbs
48Trichloroethylene79-01-61 lbs0 lbs1 lbs
49Ethylbenzene100-41-41 lbs0 lbs1 lbs
50Cyclohexane110-82-71 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

1,4-Dioxane, Ethylene glycol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol, Zinc compounds

View the full list of 27 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (27 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
11,4-Dioxane123-91-1328 lbs0 lbs396,851 lbs
2Ethylene glycol107-21-15,094 lbs0 lbs177,549 lbs
3Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,698 lbs0 lbs50,698 lbs
4Methanol67-56-17,001 lbs14,541 lbs45,817 lbs
5Zinc compoundsN9823 lbs0 lbs37,856 lbs
6Methyl tert-butyl ether1634-04-418,336 lbs0 lbs31,624 lbs
71,3-Butadiene106-99-018,236 lbs0 lbs18,236 lbs
8Xylene (mixed isomers)1330-20-710,496 lbs0 lbs10,496 lbs
9Nitric acid7697-37-23 lbs0 lbs8,478 lbs
10Nickel compoundsN4951 lbs0 lbs3,119 lbs
11N-Methyl-2-pyrrolidone872-50-42,081 lbs0 lbs2,081 lbs
12N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,842 lbs
13Cyanide compoundsN1061 lbs0 lbs1,233 lbs
14Propylene115-07-11,091 lbs0 lbs1,091 lbs
15tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
16Hydrogen sulfide7783-06-4592 lbs0 lbs592 lbs
17Ethylene74-85-1364 lbs0 lbs364 lbs
18Carbon disulfide75-15-0241 lbs0 lbs241 lbs
19Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
201,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
21Ammonia7664-41-7107 lbs0 lbs107 lbs
22Lead7439-92-120 lbs22 lbs42 lbs
23Lead And Lead CompoundsN42031 lbs5 lbs41 lbs
24Dimethylamine124-40-323 lbs0 lbs23 lbs
25Vinyl acetate108-05-45 lbs0 lbs5 lbs
26Boron trifluoride7637-07-21 lbs0 lbs1 lbs
27Acetaldehyde75-07-01 lbs0 lbs1 lbs

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