📊 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

1822 MESA VERDE DEER PARK 77536

Building Size

3,962 sqft

Total structure area from HCAD building records.

Elevation

31.67 ft

Height above sea level from USGS data.

FEMA Flood Zone

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)

Property not flooded at current water level. No damage to calculate.

Depth-Damage Estimate (Neighborhood Comparison)

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: 21.67 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 84% 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)

1.66 million lbs

Extremely High

254.3x more than typical Houston property
≈ 83 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)

1.66 million lbs

Extremely High

344.0x 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)

407 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.

Period	Total	Air	Water
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs	0 lbs
This Property (2014-2024)	1,659,429 lbs	1,659,022 lbs	407 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	163,991 lbs	152,718 lbs	23 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

70-79th

5.8%

80-89th

4.3%

90-100thLowest Pollution

34.2%

Higher pollution than 84% 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, n-Hexane, Ethylene, Chloroethane, Cyclohexane

View the full list of 24 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (24 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Propylene	115-07-1	891,483 lbs	0 lbs	891,483 lbs
2	n-Hexane	110-54-3	433,619 lbs	0 lbs	433,619 lbs
3	Ethylene	74-85-1	287,527 lbs	0 lbs	287,527 lbs
4	Chloroethane	75-00-3	13,375 lbs	0 lbs	13,375 lbs
5	Cyclohexane	110-82-7	12,948 lbs	0 lbs	12,948 lbs
6	Zinc compounds	N982	6,608 lbs	407 lbs	7,015 lbs
7	Toluene	108-88-3	5,877 lbs	0 lbs	5,877 lbs
8	Diisocyanates	N120	4,007 lbs	0 lbs	4,007 lbs
9	Certain glycol ethers	N230	1,237 lbs	0 lbs	1,237 lbs
10	Isoprene	78-79-5	923 lbs	0 lbs	923 lbs
11	Aluminum (fume or dust)	7429-90-5	462 lbs	0 lbs	462 lbs
12	Acrylic acid	79-10-7	348 lbs	0 lbs	348 lbs
13	Chloromethane	74-87-3	326 lbs	0 lbs	326 lbs
14	Diethanolamine	111-42-2	57 lbs	0 lbs	57 lbs
15	Methyl acrylate	96-33-3	47 lbs	0 lbs	47 lbs
16	Ethyl acrylate	140-88-5	35 lbs	0 lbs	35 lbs
17	Triethylamine	121-44-8	34 lbs	0 lbs	34 lbs
18	Butyl acrylate	141-32-2	28 lbs	0 lbs	28 lbs
19	Manganese compounds	N450	26 lbs	0 lbs	26 lbs
20	Methyl methacrylate	80-62-6	25 lbs	0 lbs	25 lbs
21	Diphenylamine	122-39-4	10 lbs	0 lbs	10 lbs
22	1,2,4-Trimethylbenzene	95-63-6	10 lbs	0 lbs	10 lbs
23	Xylene (mixed isomers)	1330-20-7	6 lbs	0 lbs	6 lbs
24	N-Methyl-2-pyrrolidone	872-50-4	3 lbs	0 lbs	3 lbs

Top chemicals released near this property (2024 only):

Propylene, n-Hexane, Ethylene, Polycyclic aromatic compounds, Zinc compounds

View the full list of 14 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (14 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Propylene	115-07-1	83,354 lbs	0 lbs	83,354 lbs
2	n-Hexane	110-54-3	31,953 lbs	0 lbs	33,295 lbs
3	Ethylene	74-85-1	30,290 lbs	0 lbs	30,290 lbs
4	Polycyclic aromatic compounds	N590	0 lbs	0 lbs	3,621 lbs
5	Zinc compounds	N982	426 lbs	23 lbs	3,095 lbs
6	Cyclohexane	110-82-7	1,566 lbs	0 lbs	2,461 lbs
7	Toluene	108-88-3	1,372 lbs	0 lbs	2,277 lbs
8	Diisocyanates	N120	1,843 lbs	0 lbs	1,843 lbs
9	Ethyl acrylate	140-88-5	6 lbs	0 lbs	1,809 lbs
10	Chloroethane	75-00-3	1,429 lbs	0 lbs	1,429 lbs
11	Certain glycol ethers	N230	326 lbs	0 lbs	326 lbs
12	Acrylic acid	79-10-7	127 lbs	0 lbs	127 lbs
13	Benzo[g,h,i]perylene	191-24-2	0 lbs	0 lbs	38 lbs
14	Aluminum (fume or dust)	7429-90-5	26 lbs	0 lbs	26 lbs