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
913 BOYD CT PASADENA 77506
Elevation
24.18 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: 14.18 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 86% 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)
2.66 million lbs
Extremely High
407.4x more than typical Houston property
≈ 133 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)
2.66 million lbs
Extremely High
551.0x 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)
633 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)2,657,725 lbs2,657,092 lbs633 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)78,753 lbs67,816 lbs33 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 86% 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):

n-Hexane, Methanol, Propylene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Hydrogen cyanide

View the full list of 43 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (43 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-3669,089 lbs170 lbs669,672 lbs
2Methanol67-56-1327,326 lbs0 lbs327,326 lbs
3Propylene115-07-1271,630 lbs0 lbs271,630 lbs
4Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9250,113 lbs0 lbs250,113 lbs
5Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
6Xylene (mixed isomers)1330-20-7207,168 lbs129 lbs209,636 lbs
7Toluene108-88-3141,699 lbs43 lbs142,608 lbs
8Ammonia7664-41-7130,868 lbs0 lbs130,868 lbs
9Benzene71-43-288,739 lbs44 lbs89,338 lbs
10Ethylene74-85-178,455 lbs0 lbs78,455 lbs
11Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
12Ethylbenzene100-41-438,818 lbs61 lbs39,473 lbs
13Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
141,2,4-Trimethylbenzene95-63-629,854 lbs105 lbs30,222 lbs
151,3-Butadiene106-99-029,071 lbs0 lbs29,071 lbs
16Naphthalene91-20-315,848 lbs21 lbs17,192 lbs
17Cyclohexane110-82-715,071 lbs0 lbs15,830 lbs
18Cumene98-82-87,550 lbs10 lbs7,743 lbs
19Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
20Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
21Ethylene glycol107-21-15,553 lbs0 lbs5,553 lbs
22Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
23Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
24Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
25Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
26Formic acid64-18-61,406 lbs0 lbs1,406 lbs
27Phenol108-95-2815 lbs0 lbs815 lbs
28Diethanolamine111-42-2600 lbs0 lbs600 lbs
29Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
30Chlorine7782-50-5268 lbs0 lbs268 lbs
31Nickel7440-02-0120 lbs0 lbs120 lbs
32Certain glycol ethersN23092 lbs0 lbs92 lbs
33Manganese7439-96-570 lbs0 lbs70 lbs
34Styrene100-42-556 lbs0 lbs56 lbs
35Chromium7440-47-340 lbs0 lbs40 lbs
36C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
37Mercury7439-97-630 lbs0 lbs30 lbs
38Polycyclic aromatic compoundsN59024 lbs2 lbs26 lbs
39Lead And Lead CompoundsN4203 lbs22 lbs25 lbs
40Lead compoundsN4202 lbs22 lbs23 lbs
41Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
42Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
43Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Xylene (mixed isomers), Ammonia, Toluene, Vinyl acetate

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)
1Methanol67-56-115,730 lbs0 lbs20,533 lbs
2Xylene (mixed isomers)1330-20-78,750 lbs15 lbs9,072 lbs
3Ammonia7664-41-77,948 lbs0 lbs8,735 lbs
4Toluene108-88-36,779 lbs5 lbs6,834 lbs
5Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
6n-Hexane110-54-35,671 lbs0 lbs5,704 lbs
7Benzene71-43-24,587 lbs4 lbs4,684 lbs
81,2,4-Trimethylbenzene95-63-63,145 lbs0 lbs3,286 lbs
9Formaldehyde50-00-0255 lbs0 lbs2,348 lbs
10Formic acid64-18-6189 lbs0 lbs1,968 lbs
11Ethylbenzene100-41-41,757 lbs7 lbs1,802 lbs
12Propylene115-07-11,119 lbs0 lbs1,119 lbs
131,3-Butadiene106-99-0956 lbs0 lbs956 lbs
14Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
15Dimethylamine124-40-3864 lbs0 lbs884 lbs
16Naphthalene91-20-3651 lbs1 lbs674 lbs
17Ethylene glycol107-21-1529 lbs0 lbs549 lbs
18Ethylene74-85-1521 lbs0 lbs521 lbs
19Lead And Lead CompoundsN4201 lbs1 lbs391 lbs
20Cyclohexane110-82-7355 lbs0 lbs373 lbs
21Acrylonitrile107-13-1278 lbs0 lbs294 lbs
22Phenol108-95-2255 lbs0 lbs276 lbs
23Cumene98-82-8271 lbs0 lbs272 lbs
24Lead compoundsN4200 lbs0 lbs269 lbs
25Propylene oxide75-56-9255 lbs0 lbs255 lbs
26Acetaldehyde75-07-045 lbs0 lbs45 lbs
27Manganese7439-96-530 lbs0 lbs30 lbs
28Chromium7440-47-325 lbs0 lbs25 lbs
29Chlorine7782-50-525 lbs0 lbs25 lbs
30Nickel7440-02-024 lbs0 lbs24 lbs
31Certain glycol ethersN23011 lbs0 lbs11 lbs
32Diethanolamine111-42-210 lbs0 lbs10 lbs
33Styrene100-42-57 lbs0 lbs7 lbs
34Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

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