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
1028 SPOONER ST PASADENA 77506
Building Size
1,958 sqft
Total structure area from HCAD building records.
Elevation
25.5 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: 15.5 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)
3.01 million lbs
Extremely High
461.7x more than typical Houston property
≈ 151 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)
3.01 million lbs
Extremely High
624.1x 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)
2 thousand lbs
Very 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)3,011,951 lbs3,009,771 lbs2,181 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)354,447 lbs248,844 lbs38 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):

Hydrogen cyanide, n-Hexane, Methanol, Xylene (mixed isomers), Hydrogen sulfide

View the full list of 37 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (37 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Hydrogen cyanide74-90-8818,552 lbs0 lbs818,552 lbs
2n-Hexane110-54-3366,903 lbs0 lbs366,910 lbs
3Methanol67-56-1269,438 lbs0 lbs269,438 lbs
4Xylene (mixed isomers)1330-20-7228,979 lbs627 lbs229,636 lbs
5Hydrogen sulfide7783-06-4206,443 lbs0 lbs206,443 lbs
6Propylene115-07-1193,971 lbs0 lbs193,971 lbs
7Benzene71-43-2188,730 lbs94 lbs188,835 lbs
8Toluene108-88-3168,438 lbs175 lbs168,637 lbs
9Ammonia7664-41-7128,463 lbs0 lbs128,463 lbs
10Ethylene74-85-1127,617 lbs0 lbs127,617 lbs
11Diethanolamine111-42-2102,160 lbs0 lbs102,160 lbs
12Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
13Cyclohexane110-82-752,501 lbs0 lbs52,510 lbs
14Ethylbenzene100-41-427,944 lbs4 lbs27,956 lbs
151,3-Butadiene106-99-016,921 lbs0 lbs16,921 lbs
16Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
17Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
18Ethylene glycol107-21-15,553 lbs0 lbs5,562 lbs
19Naphthalene91-20-34,616 lbs3 lbs4,627 lbs
201,2,4-Trimethylbenzene95-63-63,713 lbs0 lbs3,727 lbs
21Polycyclic aromatic compoundsN5902,862 lbs115 lbs3,179 lbs
22Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
23Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
24Phenol108-95-2815 lbs1,155 lbs1,970 lbs
25Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
26Cumene98-82-81,656 lbs0 lbs1,658 lbs
27Formic acid64-18-61,406 lbs0 lbs1,406 lbs
28Styrene100-42-51,198 lbs0 lbs1,198 lbs
29Biphenyl92-52-4345 lbs0 lbs364 lbs
30Nickel7440-02-0120 lbs0 lbs120 lbs
31Certain glycol ethersN23080 lbs0 lbs80 lbs
32Mercury7439-97-677 lbs0 lbs77 lbs
33Manganese7439-96-570 lbs0 lbs70 lbs
34Chromium7440-47-340 lbs0 lbs40 lbs
35C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
36Benzo[g,h,i]perylene191-24-20 lbs7 lbs7 lbs
37Lead compoundsN4201 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Diethanolamine, Hydrogen cyanide, n-Hexane, Xylene (mixed isomers), Methanol

View the full list of 38 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (38 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Diethanolamine111-42-210,092 lbs0 lbs85,621 lbs
2Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
3n-Hexane110-54-334,482 lbs0 lbs34,482 lbs
4Xylene (mixed isomers)1330-20-726,770 lbs10 lbs26,786 lbs
5Methanol67-56-115,730 lbs0 lbs20,533 lbs
6Ammonia7664-41-78,461 lbs0 lbs17,490 lbs
7Toluene108-88-315,998 lbs0 lbs16,019 lbs
8Benzene71-43-214,621 lbs0 lbs14,640 lbs
9Hydrogen sulfide7783-06-413,422 lbs0 lbs13,422 lbs
10Propylene115-07-19,425 lbs0 lbs9,425 lbs
11Ethylene74-85-18,875 lbs0 lbs8,875 lbs
12Ethylene glycol107-21-1529 lbs0 lbs7,568 lbs
13Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
14Cyclohexane110-82-74,048 lbs0 lbs4,048 lbs
15Phenol108-95-2255 lbs8 lbs3,101 lbs
16Ethylbenzene100-41-42,721 lbs0 lbs2,722 lbs
17Formaldehyde50-00-0255 lbs0 lbs2,348 lbs
18Formic acid64-18-6189 lbs0 lbs1,968 lbs
19Certain glycol ethersN23010 lbs0 lbs1,121 lbs
20Nickel And Nickel CompoundsN4950 lbs0 lbs915 lbs
21Dimethylamine124-40-3864 lbs0 lbs884 lbs
22Naphthalene91-20-3761 lbs0 lbs822 lbs
23Polycyclic aromatic compoundsN590353 lbs15 lbs368 lbs
241,2,4-Trimethylbenzene95-63-6305 lbs0 lbs308 lbs
25Acrylonitrile107-13-1278 lbs0 lbs294 lbs
26Cumene98-82-8293 lbs0 lbs293 lbs
27Lead compoundsN4200 lbs0 lbs269 lbs
28Propylene oxide75-56-9255 lbs0 lbs255 lbs
29Styrene100-42-5110 lbs0 lbs110 lbs
30Acetaldehyde75-07-045 lbs0 lbs45 lbs
31Biphenyl92-52-433 lbs0 lbs33 lbs
32Manganese7439-96-530 lbs0 lbs30 lbs
33Chromium7440-47-325 lbs0 lbs25 lbs
34Nickel7440-02-024 lbs0 lbs24 lbs
35Lead7439-92-10 lbs0 lbs8 lbs
36Mercury7439-97-67 lbs0 lbs7 lbs
37Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
38Vanadium (except when contained in an alloy)7440-62-20 lbs0 lbs3 lbs

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