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
9518 E AVE I HOUSTON 77012
Building Size
3,780 sqft
Total structure area from HCAD building records.
Elevation
27 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: 17 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
Very High
Higher pollution than 94% 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)
23.45 million lbs
Extremely High
3594.4x more than typical Houston property
≈ 1.2K 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)
10.31 million lbs
Extremely High
2137.4x 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)
13.14 million 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)23,451,053 lbs10,307,228 lbs13,143,825 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)3,578,911 lbs805,987 lbs2,068,237 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 94% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

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

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Ammonia, Styrene, Propylene

View the full list of 75 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (75 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs13,038,121 lbs13,038,121 lbs
2Hydrogen cyanide74-90-82,226,566 lbs0 lbs2,226,566 lbs
3Ammonia7664-41-71,717,252 lbs37,897 lbs1,755,149 lbs
4Styrene100-42-51,727,081 lbs7,271 lbs1,734,352 lbs
5Propylene115-07-11,005,508 lbs0 lbs1,005,508 lbs
61,3-Butadiene106-99-0460,959 lbs1 lbs460,960 lbs
7n-Hexane110-54-3455,963 lbs0 lbs455,970 lbs
8Xylene (mixed isomers)1330-20-7390,959 lbs627 lbs391,616 lbs
9Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9383,635 lbs0 lbs383,635 lbs
10Ethylene74-85-1311,533 lbs0 lbs311,533 lbs
11Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
12Benzene71-43-2265,833 lbs467 lbs266,311 lbs
13Toluene108-88-3264,062 lbs261 lbs264,347 lbs
14Hydrogen sulfide7783-06-4230,430 lbs3,527 lbs233,957 lbs
15Cyclohexane110-82-7132,772 lbs0 lbs132,781 lbs
16Ozone10028-15-6115,228 lbs0 lbs115,228 lbs
17Diethanolamine111-42-2101,560 lbs0 lbs101,560 lbs
18Methanol67-56-159,867 lbs39,325 lbs99,193 lbs
19Ethylbenzene100-41-448,610 lbs113 lbs48,731 lbs
20N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
211,2,4-Trimethylbenzene95-63-621,046 lbs0 lbs21,060 lbs
22tert-Butyl alcohol75-65-015,285 lbs0 lbs15,285 lbs
23Ethylene glycol107-21-114,690 lbs0 lbs14,699 lbs
241,4-Dioxane123-91-110,779 lbs0 lbs10,779 lbs
25Sodium nitrite7632-00-00 lbs9,470 lbs9,470 lbs
26Naphthalene91-20-39,191 lbs75 lbs9,274 lbs
27Carbon disulfide75-15-08,908 lbs0 lbs8,908 lbs
28Cyanide compoundsN1065,934 lbs45 lbs5,979 lbs
29Molybdenum trioxide1313-27-55,795 lbs0 lbs5,795 lbs
30Manganese7439-96-55,228 lbs331 lbs5,559 lbs
31Polycyclic aromatic compoundsN5904,498 lbs525 lbs5,225 lbs
32Phenol108-95-21,635 lbs2,959 lbs4,594 lbs
33Cumene98-82-83,912 lbs0 lbs3,914 lbs
34Zinc compoundsN982219 lbs1,116 lbs2,826 lbs
35Phthalic anhydride85-44-92,000 lbs0 lbs2,000 lbs
36Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
37Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,460 lbs0 lbs1,460 lbs
38Carbonyl sulfide463-58-11,451 lbs0 lbs1,451 lbs
39Lead7439-92-1882 lbs382 lbs1,264 lbs
40Nickel compoundsN495654 lbs489 lbs1,143 lbs
41Acetaldehyde75-07-01,011 lbs0 lbs1,011 lbs
42Phenanthrene85-01-8937 lbs0 lbs937 lbs
43Vanadium compoundsN770144 lbs509 lbs653 lbs
441,1,1,2-Tetrachloroethane630-20-6434 lbs0 lbs434 lbs
45Biphenyl92-52-4345 lbs0 lbs364 lbs
46Cresol (mixed isomers)1319-77-3232 lbs0 lbs232 lbs
47Lead And Lead CompoundsN420204 lbs17 lbs222 lbs
48Mercury compoundsN458200 lbs2 lbs203 lbs
49Nickel And Nickel CompoundsN49566 lbs123 lbs189 lbs
50Cobalt compoundsN096131 lbs24 lbs155 lbs
51Chlorine7782-50-5120 lbs0 lbs120 lbs
52Mercury And Mercury CompoundsN458109 lbs0 lbs109 lbs
53Lead compoundsN42048 lbs52 lbs100 lbs
54Dimethylamine124-40-390 lbs0 lbs90 lbs
55Mercury7439-97-677 lbs0 lbs77 lbs
56Isoprene78-79-560 lbs0 lbs60 lbs
57Anthracene120-12-744 lbs0 lbs44 lbs
58Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
59Antimony compoundsN01038 lbs0 lbs38 lbs
60Boron trifluoride7637-07-236 lbs0 lbs36 lbs
61Nickel7440-02-035 lbs0 lbs35 lbs
62Allyl alcohol107-18-634 lbs0 lbs34 lbs
63Benzo[g,h,i]perylene191-24-213 lbs7 lbs20 lbs
64Methoxone sodium salt3653-48-320 lbs0 lbs20 lbs
65Triethylamine121-44-817 lbs0 lbs17 lbs
66Acrolein107-02-813 lbs0 lbs13 lbs
67Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
68Hydroquinone123-31-99 lbs0 lbs9 lbs
69Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
70Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
71Pyridine110-86-13 lbs0 lbs3 lbs
72Chloroethane75-00-32 lbs0 lbs2 lbs
73p-Cresol106-44-52 lbs0 lbs2 lbs
74Trichloroethylene79-01-61 lbs0 lbs1 lbs
752,4-Diaminotoluene95-80-71 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), 1,4-Dioxane, Ethylene glycol, Hydrogen cyanide, Ammonia

View the full list of 55 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (55 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,051,661 lbs2,051,661 lbs
21,4-Dioxane123-91-1328 lbs0 lbs396,851 lbs
3Ethylene glycol107-21-15,094 lbs0 lbs184,568 lbs
4Hydrogen cyanide74-90-8177,459 lbs0 lbs177,459 lbs
5Ammonia7664-41-7131,752 lbs1,105 lbs141,247 lbs
6Styrene100-42-5130,944 lbs291 lbs131,236 lbs
7Diethanolamine111-42-210,082 lbs0 lbs85,611 lbs
8Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,799 lbs0 lbs50,799 lbs
9Methanol67-56-17,001 lbs14,541 lbs45,819 lbs
10Xylene (mixed isomers)1330-20-741,743 lbs10 lbs41,773 lbs
11Propylene115-07-137,845 lbs0 lbs37,845 lbs
12n-Hexane110-54-336,195 lbs0 lbs36,195 lbs
131,3-Butadiene106-99-031,705 lbs0 lbs31,705 lbs
14Methyl tert-butyl ether1634-04-418,336 lbs0 lbs31,624 lbs
15Ozone10028-15-625,701 lbs0 lbs25,701 lbs
16Toluene108-88-322,226 lbs8 lbs22,297 lbs
17Benzene71-43-220,656 lbs114 lbs21,249 lbs
18Ethylene74-85-117,709 lbs0 lbs17,709 lbs
19Hydrogen sulfide7783-06-414,137 lbs0 lbs14,140 lbs
20Cyclohexane110-82-711,534 lbs0 lbs11,534 lbs
21Ethylbenzene100-41-44,138 lbs5 lbs4,153 lbs
22Phenol108-95-2164 lbs8 lbs3,009 lbs
23N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,842 lbs
24Molybdenum trioxide1313-27-51,804 lbs0 lbs1,804 lbs
251,2,4-Trimethylbenzene95-63-61,754 lbs0 lbs1,757 lbs
26Zinc compoundsN98222 lbs27 lbs1,223 lbs
27Certain glycol ethersN2300 lbs0 lbs1,111 lbs
28Naphthalene91-20-31,004 lbs7 lbs1,089 lbs
29Carbonyl sulfide463-58-11,041 lbs0 lbs1,041 lbs
30tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
31Nickel And Nickel CompoundsN4950 lbs0 lbs915 lbs
32Cumene98-82-8534 lbs0 lbs534 lbs
33Carbon disulfide75-15-0484 lbs0 lbs484 lbs
34Polycyclic aromatic compoundsN590355 lbs55 lbs410 lbs
35Sodium nitrite7632-00-00 lbs371 lbs371 lbs
36Lead compoundsN4200 lbs0 lbs269 lbs
37Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
381,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
39Lead And Lead CompoundsN420128 lbs7 lbs150 lbs
40Lead7439-92-120 lbs22 lbs50 lbs
41Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
42Phenanthrene85-01-836 lbs0 lbs36 lbs
43Biphenyl92-52-433 lbs0 lbs33 lbs
44Mercury And Mercury CompoundsN45829 lbs0 lbs31 lbs
45Dimethylamine124-40-323 lbs0 lbs23 lbs
46Anthracene120-12-71 lbs0 lbs14 lbs
47Benzo[g,h,i]perylene191-24-28 lbs5 lbs13 lbs
48Isoprene78-79-58 lbs0 lbs8 lbs
49Mercury7439-97-67 lbs0 lbs7 lbs
50Vinyl acetate108-05-45 lbs0 lbs5 lbs
51Vanadium (except when contained in an alloy)7440-62-20 lbs0 lbs3 lbs
52Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs3 lbs
53Boron trifluoride7637-07-21 lbs0 lbs1 lbs
54Acetaldehyde75-07-01 lbs0 lbs1 lbs
55Cresol (mixed isomers)1319-77-31 lbs0 lbs1 lbs

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