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
3713 EDGEFIELD DR PASADENA 77503
Building Size
2,163 sqft
Total structure area from HCAD building records.
Elevation
30.13 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: 20.13 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 85% 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)
2.04 million lbs
Extremely High
312.1x more than typical Houston property
≈ 102 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)
979 thousand lbs
Extremely High
203.0x 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)
1.06 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)2,036,164 lbs979,034 lbs1,057,131 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)214,049 lbs106,672 lbs73,522 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 85% 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Acetophenone, Methanol, Vinyl chloride, Acetaldehyde

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)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,038,744 lbs1,038,744 lbs
2Acetophenone98-86-2206,492 lbs3,645 lbs210,136 lbs
3Methanol67-56-1183,529 lbs7,563 lbs191,092 lbs
4Vinyl chloride75-01-4166,976 lbs14 lbs166,990 lbs
5Acetaldehyde75-07-092,740 lbs3,956 lbs96,696 lbs
6Cumene98-82-884,247 lbs11 lbs84,259 lbs
7Xylene (mixed isomers)1330-20-745,323 lbs33 lbs45,365 lbs
8Ethylene74-85-140,183 lbs0 lbs40,183 lbs
91,2,4-Trimethylbenzene95-63-636,587 lbs105 lbs36,695 lbs
10Toluene108-88-329,713 lbs27 lbs29,749 lbs
11n-Hexane110-54-320,905 lbs170 lbs21,076 lbs
12Boron trifluoride7637-07-214,388 lbs0 lbs14,388 lbs
13Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-013,465 lbs0 lbs13,465 lbs
14Benzene71-43-211,221 lbs24 lbs11,247 lbs
15Ammonia7664-41-74,450 lbs2,681 lbs7,131 lbs
16Chlorine7782-50-56,383 lbs0 lbs6,383 lbs
17Ethylbenzene100-41-45,951 lbs22 lbs5,975 lbs
18Phenol108-95-24,263 lbs0 lbs4,263 lbs
19Zinc compoundsN9824,126 lbs0 lbs4,126 lbs
20Ethylene glycol107-21-11,956 lbs0 lbs1,956 lbs
21o-Cresol95-48-71,585 lbs0 lbs1,585 lbs
22Maleic anhydride108-31-61,009 lbs0 lbs1,009 lbs
23Cyclohexane110-82-7995 lbs0 lbs995 lbs
24Naphthalene91-20-3935 lbs21 lbs957 lbs
25Formaldehyde50-00-0857 lbs0 lbs857 lbs
261,3-Butadiene106-99-0312 lbs0 lbs312 lbs
27Diethanolamine111-42-2205 lbs0 lbs205 lbs
28Diphenylamine122-39-4118 lbs0 lbs118 lbs
29Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-996 lbs0 lbs96 lbs
30Chromium7440-47-30 lbs33 lbs33 lbs
31Nickel7440-02-00 lbs31 lbs31 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ethylene, Methanol, Acetophenone, Vinyl chloride

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)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs72,435 lbs72,435 lbs
2Ethylene74-85-130,650 lbs0 lbs30,650 lbs
3Methanol67-56-13,330 lbs336 lbs25,653 lbs
4Acetophenone98-86-217,719 lbs350 lbs18,069 lbs
5Vinyl chloride75-01-413,207 lbs1 lbs13,208 lbs
6Ammonia7664-41-74,450 lbs0 lbs12,164 lbs
7Acetaldehyde75-07-08,300 lbs380 lbs8,680 lbs
8Cumene98-82-87,173 lbs0 lbs7,277 lbs
91,2,4-Trimethylbenzene95-63-64,000 lbs0 lbs4,520 lbs
10n-Hexane110-54-34,280 lbs0 lbs4,280 lbs
11Xylene (mixed isomers)1330-20-73,675 lbs5 lbs3,785 lbs
12Phenol108-95-21,951 lbs0 lbs3,303 lbs
13Toluene108-88-32,900 lbs3 lbs2,903 lbs
14Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
15Benzene71-43-21,130 lbs2 lbs1,132 lbs
16o-Cresol95-48-788 lbs0 lbs1,122 lbs
17Formaldehyde50-00-099 lbs0 lbs978 lbs
18Chlorine7782-50-5487 lbs0 lbs487 lbs
19Ethylbenzene100-41-4427 lbs3 lbs430 lbs
20Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0395 lbs0 lbs395 lbs
21Zinc compoundsN982323 lbs0 lbs323 lbs
221,3-Butadiene106-99-0295 lbs0 lbs295 lbs
23Maleic anhydride108-31-6132 lbs0 lbs281 lbs
24Cyclohexane110-82-7232 lbs0 lbs232 lbs
25Naphthalene91-20-3132 lbs1 lbs133 lbs
26Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-996 lbs0 lbs96 lbs
27Diphenylamine122-39-423 lbs0 lbs23 lbs
28Chromium7440-47-30 lbs2 lbs8 lbs
29Nickel7440-02-00 lbs2 lbs6 lbs
30Lead And Lead CompoundsN4201 lbs1 lbs1 lbs
31Certain glycol ethersN2301 lbs0 lbs1 lbs
32Ethylene glycol107-21-11 lbs0 lbs1 lbs
33Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

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