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
108 MAPLETON AVE BAYTOWN 77520
Elevation
-0.41 ft
Height above sea level from USGS data.
FEMA Flood Zone
VE
Unknown
Overall Risk
Very High
Property flooded at 10.0ft depth. Risk based on flood depth at structure.

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
10 ft ±0.5 ft
Depth of water above ground 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 Flooded
Flood Depth: 10 feet
Severity: Critical

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.

  • This property is in a high-risk flood zone. Flood insurance is required for mortgages.
  • Consider flood mitigation measures like elevated utilities and flood vents.
  • 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.
  • Simulation shows flooding at current water level - review property drainage and consider mitigation.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
Very High
Higher pollution than 93% 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 million lbs
Extremely High
2604.9x more than typical Houston property
≈ 850 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)
15.23 million lbs
Extremely High
3157.7x 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)
1.77 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)16,995,391 lbs15,227,473 lbs1,767,918 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,514,300 lbs1,320,482 lbs178,545 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 93% 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):

Propylene, Ethylene, n-Hexane, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution)

View the full list of 48 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (48 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Propylene115-07-13,682,356 lbs0 lbs3,682,356 lbs
2Ethylene74-85-13,074,500 lbs0 lbs3,074,500 lbs
3n-Hexane110-54-31,713,404 lbs0 lbs1,713,404 lbs
4Ammonia7664-41-71,520,514 lbs89,839 lbs1,610,353 lbs
5Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,375,533 lbs1,375,533 lbs
6Xylene (mixed isomers)1330-20-71,120,934 lbs5,505 lbs1,126,439 lbs
7Chloromethane74-87-31,068,482 lbs652 lbs1,069,134 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0608,872 lbs0 lbs608,872 lbs
91,3-Butadiene106-99-0496,223 lbs0 lbs496,223 lbs
10Toluene108-88-3410,129 lbs3,946 lbs414,075 lbs
11Benzene71-43-2385,079 lbs717 lbs385,796 lbs
12Formaldehyde50-00-0327,476 lbs0 lbs327,476 lbs
13tert-Butyl alcohol75-65-0240,653 lbs0 lbs240,653 lbs
14Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0906,706 lbs157,867 lbs164,573 lbs
15Ethylbenzene100-41-4123,788 lbs660 lbs124,448 lbs
16Zinc compoundsN98248,034 lbs58,043 lbs106,077 lbs
17Isoprene78-79-590,141 lbs1,154 lbs91,295 lbs
18Methanol67-56-120,805 lbs64,440 lbs85,245 lbs
19Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-959,626 lbs0 lbs59,626 lbs
20Naphthalene91-20-335,507 lbs1,895 lbs37,402 lbs
21Cyclohexane110-82-735,984 lbs347 lbs36,331 lbs
22Chlorodifluoromethane (HCFC-22)75-45-629,802 lbs0 lbs29,802 lbs
23Nickel And Nickel CompoundsN49521,744 lbs2,276 lbs24,020 lbs
24N,N-Dimethylformamide68-12-222,560 lbs0 lbs22,560 lbs
25Hydrogen sulfide7783-06-419,647 lbs45 lbs19,692 lbs
26Styrene100-42-513,098 lbs0 lbs13,098 lbs
27Nickel compoundsN49510,428 lbs1,700 lbs12,128 lbs
28Phenol108-95-211,008 lbs540 lbs11,548 lbs
29Cumene98-82-811,359 lbs88 lbs11,447 lbs
30Polycyclic aromatic compoundsN5904,088 lbs0 lbs4,088 lbs
311,2,4-Trimethylbenzene95-63-63,884 lbs0 lbs3,884 lbs
32Lead And Lead CompoundsN4201,995 lbs835 lbs2,830 lbs
33Carbonyl sulfide463-58-12,716 lbs0 lbs2,716 lbs
34Dicyclopentadiene77-73-62,704 lbs0 lbs2,704 lbs
35Lead compoundsN420724 lbs836 lbs1,560 lbs
36Mercury And Mercury CompoundsN4581,026 lbs1 lbs1,027 lbs
37Mercury compoundsN458747 lbs20 lbs767 lbs
38Hydrogen cyanide74-90-84 lbs389 lbs393 lbs
39Phenanthrene85-01-8329 lbs0 lbs329 lbs
40Copper compoundsN10060 lbs250 lbs310 lbs
41Chlorine7782-50-510 lbs220 lbs230 lbs
42Methyl isobutyl ketone108-10-1120 lbs38 lbs158 lbs
43Bromine7726-95-6135 lbs0 lbs135 lbs
44Cyanide compoundsN10620 lbs83 lbs103 lbs
45Anthracene120-12-743 lbs0 lbs43 lbs
46Benzo[g,h,i]perylene191-24-26 lbs0 lbs6 lbs
47Cobalt And Cobalt CompoundsN0962 lbs0 lbs2 lbs
48Ethylene glycol107-21-11 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Propylene, Ethylene, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Chloromethane

View the full list of 34 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (34 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Propylene115-07-1296,000 lbs0 lbs296,000 lbs
2Ethylene74-85-1255,000 lbs0 lbs255,000 lbs
3Ammonia7664-41-7172,624 lbs11,227 lbs183,851 lbs
4Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs154,064 lbs154,064 lbs
5Chloromethane74-87-3153,400 lbs3 lbs153,403 lbs
6n-Hexane110-54-3117,320 lbs0 lbs117,320 lbs
7Xylene (mixed isomers)1330-20-766,000 lbs2,603 lbs69,827 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-061,009 lbs0 lbs61,009 lbs
9Toluene108-88-342,200 lbs1,473 lbs50,990 lbs
101,3-Butadiene106-99-033,090 lbs0 lbs33,090 lbs
11Formaldehyde50-00-032,750 lbs0 lbs32,750 lbs
12Benzene71-43-225,800 lbs157 lbs25,978 lbs
13tert-Butyl alcohol75-65-018,770 lbs0 lbs18,770 lbs
14Ethylbenzene100-41-410,200 lbs124 lbs10,960 lbs
15Methanol67-56-1698 lbs8,100 lbs8,798 lbs
16Cyclohexane110-82-76,706 lbs113 lbs6,819 lbs
17N,N-Dimethylformamide68-12-25,800 lbs0 lbs5,800 lbs
18Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-95,585 lbs0 lbs5,585 lbs
19Isoprene78-79-55,331 lbs131 lbs5,462 lbs
20Nickel And Nickel CompoundsN4953,661 lbs331 lbs4,397 lbs
21Naphthalene91-20-32,904 lbs131 lbs3,899 lbs
22Phenanthrene85-01-829 lbs0 lbs2,306 lbs
23Lead And Lead CompoundsN420340 lbs56 lbs1,411 lbs
24Phenol108-95-21,231 lbs10 lbs1,241 lbs
25Mercury And Mercury CompoundsN458191 lbs0 lbs1,180 lbs
26Cumene98-82-81,101 lbs22 lbs1,124 lbs
27Hydrogen sulfide7783-06-4940 lbs0 lbs1,023 lbs
28Styrene100-42-51,000 lbs0 lbs1,003 lbs
29Polycyclic aromatic compoundsN590496 lbs0 lbs718 lbs
30Benzo[g,h,i]perylene191-24-21 lbs0 lbs210 lbs
311,2,4-Trimethylbenzene95-63-6209 lbs0 lbs209 lbs
32Chlorodifluoromethane (HCFC-22)75-45-678 lbs0 lbs78 lbs
33Carbonyl sulfide463-58-116 lbs0 lbs16 lbs
34Anthracene120-12-72 lbs0 lbs9 lbs

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