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
117 E FORREST LN DEER PARK 77536
Building Size
1,918 sqft
Total structure area from HCAD building records.
Elevation
29.98 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: 19.98 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 79% 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)
708 thousand lbs
Extremely High
108.6x more than typical Houston property
≈ 35 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)
396 thousand lbs
Very High
82.1x 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)
312 thousand 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)708,329 lbs395,867 lbs312,463 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)62,983 lbs19,719 lbs27,581 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 79% 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Methanol, Propylene oxide, Ethylene glycol, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 35 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (35 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs256,774 lbs256,774 lbs
2Methanol67-56-1177,902 lbs37,738 lbs215,640 lbs
3Propylene oxide75-56-953,747 lbs0 lbs53,747 lbs
4Ethylene glycol107-21-130,851 lbs9,387 lbs40,238 lbs
5Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-025,422 lbs0 lbs25,422 lbs
61,3-Butadiene106-99-019,768 lbs45 lbs19,813 lbs
7Butyl acrylate141-32-218,363 lbs0 lbs18,363 lbs
8Hydrogen sulfide7783-06-417,373 lbs0 lbs17,373 lbs
9Toluene108-88-315,710 lbs8 lbs15,718 lbs
10Maleic anhydride108-31-612,243 lbs0 lbs12,243 lbs
11Trade SecretTRD SECRT9,705 lbs0 lbs9,705 lbs
12Chlorine7782-50-57,351 lbs0 lbs7,351 lbs
13Zinc compoundsN982499 lbs6,397 lbs6,896 lbs
14Ammonia7664-41-74,450 lbs0 lbs4,450 lbs
15Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs1,936 lbs1,936 lbs
16Nonylphenol EthoxylatesN5351,381 lbs0 lbs1,381 lbs
17Certain glycol ethersN230372 lbs0 lbs372 lbs
18Acrylic acid79-10-7348 lbs0 lbs348 lbs
19Barium And Barium CompoundsN0400 lbs99 lbs99 lbs
20NonylphenolN53061 lbs0 lbs61 lbs
21Diethanolamine111-42-257 lbs0 lbs57 lbs
22Nitric acid7697-37-249 lbs0 lbs49 lbs
23Methyl acrylate96-33-347 lbs0 lbs47 lbs
24Ethyl acrylate140-88-535 lbs0 lbs35 lbs
25Triethylamine121-44-834 lbs0 lbs34 lbs
26Chromium7440-47-30 lbs33 lbs33 lbs
27Nickel7440-02-00 lbs31 lbs31 lbs
28Manganese compoundsN45026 lbs0 lbs26 lbs
29Methyl methacrylate80-62-625 lbs0 lbs25 lbs
30Diphenylamine122-39-410 lbs14 lbs24 lbs
31Boron trifluoride7637-07-211 lbs0 lbs11 lbs
321,2,4-Trimethylbenzene95-63-610 lbs0 lbs10 lbs
33Xylene (mixed isomers)1330-20-76 lbs0 lbs6 lbs
34DiisocyanatesN1206 lbs0 lbs6 lbs
35N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Methanol, Ammonia, Trade Secret, Ethyl acrylate

View the full list of 21 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (21 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs21,502 lbs21,502 lbs
2Methanol67-56-15,077 lbs5,174 lbs15,702 lbs
3Ammonia7664-41-74,450 lbs0 lbs12,164 lbs
4Trade SecretTRD SECRT5,677 lbs0 lbs5,677 lbs
5Ethyl acrylate140-88-56 lbs0 lbs1,809 lbs
6Ethylene glycol107-21-11,527 lbs0 lbs1,527 lbs
71,3-Butadiene106-99-0993 lbs9 lbs1,002 lbs
8Zinc compoundsN9820 lbs889 lbs948 lbs
9Maleic anhydride108-31-6701 lbs0 lbs701 lbs
10Butyl acrylate141-32-2597 lbs0 lbs597 lbs
11Toluene108-88-3215 lbs3 lbs409 lbs
12NonylphenolN5302 lbs0 lbs374 lbs
13Hydrogen sulfide7783-06-4235 lbs0 lbs235 lbs
14Acrylic acid79-10-7127 lbs0 lbs127 lbs
15Chlorine7782-50-5101 lbs0 lbs101 lbs
16Methyl isobutyl ketone108-10-10 lbs0 lbs44 lbs
17Lead7439-92-10 lbs0 lbs38 lbs
18Nitric acid7697-37-211 lbs0 lbs11 lbs
19Chromium7440-47-30 lbs2 lbs8 lbs
20Nickel7440-02-00 lbs2 lbs6 lbs
21Propylene oxide75-56-91 lbs0 lbs1 lbs

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