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
2017 DEERVALLEY ST DEER PARK 77536
Building Size
3,966 sqft
Total structure area from HCAD building records.
Elevation
28.94 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: 18.94 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)
2.54 million lbs
Extremely High
389.5x more than typical Houston property
≈ 127 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)
2.23 million lbs
Extremely High
462.0x 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)
313 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)2,541,032 lbs2,227,776 lbs313,257 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)624,138 lbs191,760 lbs27,850 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):

Propylene, Ammonia, n-Hexane, Ethylene, Methanol

View the full list of 44 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (44 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Propylene115-07-1891,483 lbs0 lbs891,483 lbs
2Ammonia7664-41-7101,936 lbs452 lbs523,868 lbs
3n-Hexane110-54-3433,619 lbs0 lbs433,619 lbs
4Ethylene74-85-1287,527 lbs0 lbs287,527 lbs
5Methanol67-56-1221,158 lbs37,738 lbs258,896 lbs
6Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs256,774 lbs256,774 lbs
7Propylene oxide75-56-953,747 lbs0 lbs53,747 lbs
8Ethylene glycol107-21-130,851 lbs9,387 lbs40,238 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-025,422 lbs0 lbs25,422 lbs
10Toluene108-88-321,587 lbs8 lbs21,595 lbs
111,3-Butadiene106-99-019,768 lbs45 lbs19,813 lbs
12Butyl acrylate141-32-218,363 lbs0 lbs18,363 lbs
13Hydrogen sulfide7783-06-417,373 lbs0 lbs17,373 lbs
14Formaldehyde50-00-016,402 lbs0 lbs16,402 lbs
15Chlorobenzene108-90-716,036 lbs0 lbs16,036 lbs
16Zinc compoundsN9826,712 lbs6,803 lbs13,516 lbs
17Chloroethane75-00-313,375 lbs0 lbs13,375 lbs
18Cyclohexane110-82-712,948 lbs0 lbs12,948 lbs
19Maleic anhydride108-31-612,243 lbs0 lbs12,243 lbs
20Trade SecretTRD SECRT9,705 lbs0 lbs9,705 lbs
21Chlorine7782-50-57,351 lbs0 lbs7,351 lbs
22DiisocyanatesN1204,282 lbs0 lbs4,282 lbs
23Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs1,936 lbs1,936 lbs
24Nonylphenol EthoxylatesN5351,381 lbs0 lbs1,381 lbs
25Certain glycol ethersN2301,237 lbs0 lbs1,237 lbs
26Isoprene78-79-5923 lbs0 lbs923 lbs
27Hydrogen cyanide74-90-8596 lbs0 lbs596 lbs
28Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
29Acrylic acid79-10-7348 lbs0 lbs348 lbs
30Chloromethane74-87-3326 lbs0 lbs326 lbs
31Boron trifluoride7637-07-2250 lbs0 lbs250 lbs
32Barium And Barium CompoundsN0400 lbs99 lbs99 lbs
33NonylphenolN53061 lbs0 lbs61 lbs
34Diethanolamine111-42-257 lbs0 lbs57 lbs
35Nitric acid7697-37-249 lbs0 lbs49 lbs
36Methyl acrylate96-33-347 lbs0 lbs47 lbs
37Ethyl acrylate140-88-535 lbs0 lbs35 lbs
38Triethylamine121-44-834 lbs0 lbs34 lbs
39Manganese compoundsN45026 lbs0 lbs26 lbs
40Methyl methacrylate80-62-625 lbs0 lbs25 lbs
41Diphenylamine122-39-410 lbs14 lbs24 lbs
421,2,4-Trimethylbenzene95-63-610 lbs0 lbs10 lbs
43Xylene (mixed isomers)1330-20-76 lbs0 lbs6 lbs
44N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs

Top chemicals released near this property (2024 only):

Ammonia, Propylene, n-Hexane, Ethylene, Nitrate compounds (water dissociable; reportable only when in aqueous solution)

View the full list of 31 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (31 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-720,523 lbs250 lbs407,895 lbs
2Propylene115-07-183,354 lbs0 lbs83,354 lbs
3n-Hexane110-54-331,953 lbs0 lbs33,295 lbs
4Ethylene74-85-130,290 lbs0 lbs30,290 lbs
5Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs21,502 lbs21,502 lbs
6Methanol67-56-15,077 lbs5,174 lbs15,702 lbs
7Trade SecretTRD SECRT5,677 lbs0 lbs5,677 lbs
8Zinc compoundsN982426 lbs912 lbs4,044 lbs
9Polycyclic aromatic compoundsN5900 lbs0 lbs3,621 lbs
10Formaldehyde50-00-03,363 lbs0 lbs3,363 lbs
11Toluene108-88-31,587 lbs3 lbs2,686 lbs
12Cyclohexane110-82-71,566 lbs0 lbs2,461 lbs
13DiisocyanatesN1201,843 lbs0 lbs1,843 lbs
14Ethyl acrylate140-88-56 lbs0 lbs1,809 lbs
15Ethylene glycol107-21-11,527 lbs0 lbs1,527 lbs
16Chloroethane75-00-31,429 lbs0 lbs1,429 lbs
171,3-Butadiene106-99-0993 lbs9 lbs1,002 lbs
18Maleic anhydride108-31-6701 lbs0 lbs701 lbs
19Butyl acrylate141-32-2597 lbs0 lbs597 lbs
20NonylphenolN5302 lbs0 lbs374 lbs
21Certain glycol ethersN230326 lbs0 lbs326 lbs
22Hydrogen sulfide7783-06-4235 lbs0 lbs235 lbs
23Acrylic acid79-10-7127 lbs0 lbs127 lbs
24Chlorine7782-50-5101 lbs0 lbs101 lbs
25Methyl isobutyl ketone108-10-10 lbs0 lbs44 lbs
26Lead7439-92-10 lbs0 lbs38 lbs
27Benzo[g,h,i]perylene191-24-20 lbs0 lbs38 lbs
28Aluminum (fume or dust)7429-90-526 lbs0 lbs26 lbs
29Boron trifluoride7637-07-220 lbs0 lbs20 lbs
30Nitric acid7697-37-211 lbs0 lbs11 lbs
31Propylene oxide75-56-91 lbs0 lbs1 lbs

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