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
401 RHODE ISLAND ST HOUSTON 77029
Elevation
28.6 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 18.6 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 92% 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)
17.73 million lbs
Extremely High
2717.5x more than typical Houston property
≈ 887 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)
4.7 million lbs
Extremely High
973.9x 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)
13.03 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)17,730,046 lbs4,696,315 lbs13,033,731 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)3,034,100 lbs367,863 lbs2,052,924 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 92% 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, Propylene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 73 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (73 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs13,016,167 lbs13,016,167 lbs
2Hydrogen cyanide74-90-81,408,014 lbs0 lbs1,408,014 lbs
3Ammonia7664-41-7932,410 lbs8,000 lbs940,410 lbs
4Propylene115-07-1797,332 lbs0 lbs797,332 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9383,635 lbs0 lbs383,635 lbs
6Ethylene74-85-1181,295 lbs0 lbs181,295 lbs
7Xylene (mixed isomers)1330-20-7161,980 lbs0 lbs161,980 lbs
8n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
9Ozone10028-15-6115,228 lbs0 lbs115,228 lbs
10Toluene108-88-396,036 lbs86 lbs96,122 lbs
11n-Hexane110-54-394,992 lbs0 lbs94,992 lbs
12Benzene71-43-281,475 lbs373 lbs81,848 lbs
13Cyclohexane110-82-780,274 lbs0 lbs80,274 lbs
14Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
15Hydrogen sulfide7783-06-423,987 lbs3,527 lbs27,514 lbs
16Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
17Ethylbenzene100-41-420,882 lbs109 lbs20,992 lbs
181,2,4-Trimethylbenzene95-63-617,411 lbs0 lbs17,555 lbs
19Ethylene glycol107-21-114,690 lbs0 lbs14,690 lbs
20Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
211,3-Butadiene106-99-012,968 lbs0 lbs12,968 lbs
221,4-Dioxane123-91-110,779 lbs0 lbs10,779 lbs
23Carbon disulfide75-15-08,908 lbs0 lbs8,908 lbs
24Cyanide compoundsN1065,934 lbs45 lbs5,979 lbs
25Molybdenum trioxide1313-27-55,795 lbs0 lbs5,795 lbs
26Manganese7439-96-55,228 lbs331 lbs5,559 lbs
27Naphthalene91-20-34,692 lbs72 lbs4,765 lbs
28Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
29Phenol108-95-21,635 lbs1,804 lbs3,439 lbs
30Zinc compoundsN982233 lbs1,207 lbs2,931 lbs
31Polycyclic aromatic compoundsN5902,359 lbs411 lbs2,778 lbs
32Styrene100-42-52,395 lbs0 lbs2,396 lbs
33Cumene98-82-82,256 lbs0 lbs2,256 lbs
34Methanol67-56-12,107 lbs0 lbs2,107 lbs
35Phthalic anhydride85-44-92,000 lbs0 lbs2,000 lbs
36Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
37Lead7439-92-11,110 lbs383 lbs1,493 lbs
38Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,460 lbs0 lbs1,460 lbs
39Carbonyl sulfide463-58-11,451 lbs0 lbs1,451 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
45Cresol (mixed isomers)1319-77-3232 lbs0 lbs232 lbs
46Lead And Lead CompoundsN420204 lbs17 lbs222 lbs
47Mercury compoundsN458200 lbs2 lbs203 lbs
48Nickel And Nickel CompoundsN49566 lbs123 lbs189 lbs
49Cobalt compoundsN096131 lbs24 lbs155 lbs
50Mercury And Mercury CompoundsN458109 lbs0 lbs109 lbs
51Lead compoundsN42047 lbs52 lbs99 lbs
52Dimethylamine124-40-390 lbs0 lbs90 lbs
53Isoprene78-79-560 lbs0 lbs60 lbs
54Anthracene120-12-744 lbs0 lbs44 lbs
55Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
56Antimony compoundsN01038 lbs0 lbs38 lbs
57Nickel7440-02-035 lbs0 lbs35 lbs
58Allyl alcohol107-18-634 lbs0 lbs34 lbs
59Benzo[g,h,i]perylene191-24-228 lbs0 lbs28 lbs
60tert-Butyl alcohol75-65-022 lbs0 lbs22 lbs
61Methoxone sodium salt3653-48-320 lbs0 lbs20 lbs
62Triethylamine121-44-817 lbs0 lbs17 lbs
63Acrolein107-02-813 lbs0 lbs13 lbs
64Mercury7439-97-612 lbs0 lbs12 lbs
65Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
66Hydroquinone123-31-99 lbs0 lbs9 lbs
67Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
68Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
69Pyridine110-86-13 lbs0 lbs3 lbs
70Chloroethane75-00-32 lbs0 lbs2 lbs
71p-Cresol106-44-52 lbs0 lbs2 lbs
72Trichloroethylene79-01-61 lbs0 lbs1 lbs
732,4-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 43 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (43 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 lbs177,549 lbs
4Hydrogen cyanide74-90-8103,731 lbs0 lbs103,731 lbs
5Ammonia7664-41-7100,319 lbs1,027 lbs101,463 lbs
6Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,799 lbs0 lbs50,799 lbs
7Propylene115-07-127,329 lbs0 lbs27,329 lbs
8Ozone10028-15-625,701 lbs0 lbs25,701 lbs
9Methanol67-56-1152 lbs0 lbs23,827 lbs
10Zinc compoundsN98222 lbs32 lbs19,978 lbs
11Xylene (mixed isomers)1330-20-714,973 lbs0 lbs14,987 lbs
12Ethylene74-85-18,470 lbs0 lbs8,470 lbs
13Cyclohexane110-82-77,486 lbs0 lbs7,486 lbs
14Benzene71-43-26,035 lbs114 lbs6,610 lbs
15Toluene108-88-36,228 lbs8 lbs6,279 lbs
16Molybdenum trioxide1313-27-51,804 lbs0 lbs1,804 lbs
17n-Hexane110-54-31,713 lbs0 lbs1,713 lbs
181,2,4-Trimethylbenzene95-63-61,449 lbs0 lbs1,449 lbs
19Ethylbenzene100-41-41,417 lbs5 lbs1,431 lbs
20Carbonyl sulfide463-58-11,041 lbs0 lbs1,041 lbs
211,3-Butadiene106-99-0762 lbs0 lbs762 lbs
22Hydrogen sulfide7783-06-4715 lbs0 lbs718 lbs
23Carbon disulfide75-15-0484 lbs0 lbs484 lbs
24Lead7439-92-1248 lbs23 lbs275 lbs
25Naphthalene91-20-3243 lbs7 lbs267 lbs
26Cumene98-82-8241 lbs0 lbs241 lbs
27Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
281,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
29Phenol108-95-2164 lbs0 lbs184 lbs
30Styrene100-42-5159 lbs0 lbs159 lbs
31Lead And Lead CompoundsN420128 lbs7 lbs150 lbs
32Polycyclic aromatic compoundsN59039 lbs40 lbs97 lbs
33Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
34Phenanthrene85-01-836 lbs0 lbs36 lbs
35Mercury And Mercury CompoundsN45829 lbs0 lbs31 lbs
36Dimethylamine124-40-323 lbs0 lbs23 lbs
37Anthracene120-12-71 lbs0 lbs14 lbs
38Benzo[g,h,i]perylene191-24-28 lbs0 lbs8 lbs
39Isoprene78-79-58 lbs0 lbs8 lbs
40Vinyl acetate108-05-45 lbs0 lbs5 lbs
41Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs3 lbs
42Acetaldehyde75-07-01 lbs0 lbs1 lbs
43Cresol (mixed isomers)1319-77-31 lbs0 lbs1 lbs

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