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
1107 PRESTON AVE PASADENA 77503
Elevation
33.06 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: 23.06 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 78% 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)
648 thousand lbs
Very High
99.4x more than typical Houston property
≈ 32 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)
648 thousand lbs
Extremely High
134.3x 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)
527 lbs
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)648,238 lbs647,711 lbs527 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)85,799 lbs50,130 lbs19 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 78% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile (top 25% most polluted).

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

Methanol, Ammonia, Vinyl acetate, Xylene (mixed isomers), 1,2,4-Trimethylbenzene

View the full list of 38 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (38 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Methanol67-56-1270,817 lbs0 lbs270,817 lbs
2Ammonia7664-41-792,863 lbs0 lbs92,863 lbs
3Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
4Xylene (mixed isomers)1330-20-745,323 lbs33 lbs45,365 lbs
51,2,4-Trimethylbenzene95-63-636,587 lbs105 lbs36,695 lbs
6Toluene108-88-329,713 lbs27 lbs29,749 lbs
7n-Hexane110-54-318,945 lbs170 lbs19,116 lbs
8Boron trifluoride7637-07-214,388 lbs0 lbs14,388 lbs
9Benzene71-43-211,221 lbs24 lbs11,247 lbs
10Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
11Chlorine7782-50-56,383 lbs0 lbs6,383 lbs
12Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
13Ethylbenzene100-41-45,951 lbs22 lbs5,975 lbs
14Phenol108-95-25,078 lbs0 lbs5,078 lbs
15Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,066 lbs0 lbs5,066 lbs
16Zinc compoundsN9824,126 lbs0 lbs4,126 lbs
17Formaldehyde50-00-03,141 lbs0 lbs3,141 lbs
18Ethylene glycol107-21-12,254 lbs0 lbs2,254 lbs
19Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
20Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
21o-Cresol95-48-71,585 lbs0 lbs1,585 lbs
22Cumene98-82-81,513 lbs10 lbs1,524 lbs
23Formic acid64-18-61,406 lbs0 lbs1,406 lbs
24Maleic anhydride108-31-61,009 lbs0 lbs1,009 lbs
25Cyclohexane110-82-7995 lbs0 lbs995 lbs
26Naphthalene91-20-3935 lbs21 lbs957 lbs
27Diethanolamine111-42-2205 lbs0 lbs205 lbs
28Nickel7440-02-0120 lbs31 lbs151 lbs
29Diphenylamine122-39-4118 lbs0 lbs118 lbs
30Chromium7440-47-340 lbs33 lbs73 lbs
31Manganese7439-96-570 lbs0 lbs70 lbs
32Lead And Lead CompoundsN4203 lbs22 lbs25 lbs
33Lead compoundsN4201 lbs22 lbs22 lbs
34Certain glycol ethersN23012 lbs0 lbs12 lbs
35Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
36Polycyclic aromatic compoundsN5902 lbs2 lbs4 lbs
37Piperonyl butoxide51-03-64 lbs0 lbs4 lbs
38Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Ammonia, Vinyl acetate, 1,2,4-Trimethylbenzene, Xylene (mixed isomers)

View the full list of 33 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (33 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-115,808 lbs0 lbs42,599 lbs
2Ammonia7664-41-76,678 lbs0 lbs7,432 lbs
3Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
41,2,4-Trimethylbenzene95-63-64,000 lbs0 lbs4,520 lbs
5Xylene (mixed isomers)1330-20-73,675 lbs5 lbs3,785 lbs
6Phenol108-95-22,206 lbs0 lbs3,579 lbs
7Formaldehyde50-00-0354 lbs0 lbs3,326 lbs
8Toluene108-88-32,900 lbs3 lbs2,903 lbs
9n-Hexane110-54-32,320 lbs0 lbs2,320 lbs
10Formic acid64-18-6189 lbs0 lbs1,968 lbs
11Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
12Benzene71-43-21,130 lbs2 lbs1,132 lbs
13o-Cresol95-48-788 lbs0 lbs1,122 lbs
14Dimethylamine124-40-3864 lbs0 lbs884 lbs
15Chlorine7782-50-5487 lbs0 lbs487 lbs
16Ethylbenzene100-41-4427 lbs3 lbs430 lbs
17Zinc compoundsN982323 lbs0 lbs323 lbs
18Acrylonitrile107-13-1278 lbs0 lbs294 lbs
19Cumene98-82-8183 lbs0 lbs287 lbs
20Maleic anhydride108-31-6132 lbs0 lbs281 lbs
21Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0265 lbs0 lbs265 lbs
22Propylene oxide75-56-9255 lbs0 lbs255 lbs
23Cyclohexane110-82-7232 lbs0 lbs232 lbs
24Naphthalene91-20-3132 lbs1 lbs133 lbs
25Ethylene glycol107-21-130 lbs0 lbs50 lbs
26Acetaldehyde75-07-045 lbs0 lbs45 lbs
27Chromium7440-47-325 lbs2 lbs33 lbs
28Nickel7440-02-024 lbs2 lbs30 lbs
29Manganese7439-96-530 lbs0 lbs30 lbs
30Diphenylamine122-39-423 lbs0 lbs23 lbs
31Lead And Lead CompoundsN4201 lbs1 lbs1 lbs
32Certain glycol ethersN2301 lbs0 lbs1 lbs
33Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

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