📊 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

5026 GLENVIEW DR LA PORTE 77571

Building Size

2,322 sqft

Total structure area from HCAD building records.

Elevation

22.28 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: 12.28 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 83% 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)

1.45 million lbs

Extremely High

222.3x more than typical Houston property
≈ 73 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)

1.45 million lbs

Extremely High

300.7x 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)

170 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)	1,450,293 lbs	1,450,123 lbs	170 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	387,341 lbs	192,603 lbs	0 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 83% 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, Ethylene, Ammonia, Methanol, 1,2,4-Trimethylbenzene

View the full list of 22 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (22 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	n-Hexane	110-54-3	1,013,131 lbs	0 lbs	1,013,131 lbs
2	Ethylene	74-85-1	397,288 lbs	0 lbs	397,288 lbs
3	Ammonia	7664-41-7	32,296 lbs	68 lbs	32,364 lbs
4	Methanol	67-56-1	3,226 lbs	0 lbs	3,226 lbs
5	1,2,4-Trimethylbenzene	95-63-6	971 lbs	0 lbs	971 lbs
6	Xylene (mixed isomers)	1330-20-7	874 lbs	0 lbs	874 lbs
7	Toluene	108-88-3	807 lbs	0 lbs	807 lbs
8	Ethylene oxide	75-21-8	791 lbs	0 lbs	791 lbs
9	Cyclohexane	110-82-7	377 lbs	0 lbs	377 lbs
10	Formaldehyde	50-00-0	46 lbs	102 lbs	148 lbs
11	Ethylbenzene	100-41-4	94 lbs	0 lbs	94 lbs
12	Cumene	98-82-8	68 lbs	0 lbs	68 lbs
13	Chloromethane	74-87-3	51 lbs	0 lbs	51 lbs
14	Chromium	7440-47-3	45 lbs	0 lbs	45 lbs
15	Naphthalene	91-20-3	33 lbs	0 lbs	33 lbs
16	Propylene oxide	75-56-9	14 lbs	0 lbs	14 lbs
17	Bis(2-chloroethyl) ether	111-44-4	3 lbs	0 lbs	3 lbs
18	Certain glycol ethers	N230	3 lbs	0 lbs	3 lbs
19	Methyl methacrylate	80-62-6	2 lbs	0 lbs	2 lbs
20	Maleic anhydride	108-31-6	1 lbs	0 lbs	1 lbs
21	Ethylene glycol	107-21-1	1 lbs	0 lbs	1 lbs
22	n-Butyl alcohol	71-36-3	1 lbs	0 lbs	1 lbs

Top chemicals released near this property (2024 only):

n-Hexane, Methanol, Ethylene, 1,2,4-Trimethylbenzene, Toluene

View the full list of 17 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (17 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	n-Hexane	110-54-3	116,540 lbs	117,040 lbs
2	Methanol	67-56-1	139 lbs	95,522 lbs
3	Ethylene	74-85-1	71,321 lbs	71,321 lbs
4	1,2,4-Trimethylbenzene	95-63-6	74 lbs	43,988 lbs
5	Toluene	108-88-3	16 lbs	13,930 lbs
6	Xylene (mixed isomers)	1330-20-7	39 lbs	13,258 lbs
7	Nonylphenol Ethoxylates	N535	0 lbs	11,809 lbs
8	Ammonia	7664-41-7	4,375 lbs	5,960 lbs
9	Naphthalene	91-20-3	0 lbs	4,040 lbs
10	Ethylene oxide	75-21-8	63 lbs	2,763 lbs
11	Cumene	98-82-8	4 lbs	2,713 lbs
12	Ethylbenzene	100-41-4	4 lbs	2,630 lbs
13	Ethylene glycol	107-21-1	0 lbs	1,138 lbs
14	Formaldehyde	50-00-0	3 lbs	513 lbs
15	Maleic anhydride	108-31-6	0 lbs	400 lbs
16	Cyclohexane	110-82-7	24 lbs	315 lbs
17	Propylene oxide	75-56-9	1 lbs	1 lbs