📊 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

3317 HARDIE ST HOUSTON 77026

Elevation

43.32 ft

Height above sea level from USGS data.

FEMA Flood Zone

High Risk - 1% annual chance with established base flood elevation

Overall Risk

Moderate

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

Moderate

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)

Vacant lot (no building data). No structure to calculate damage for.

Depth-Damage Estimate (Neighborhood Comparison)

Vacant lot (no building data). No structure to calculate damage for.

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: 33.32 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.

This property is in a high-risk flood zone. Flood insurance is required for mortgages.
Consider flood mitigation measures like elevated utilities and flood vents.
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

Moderate

Higher pollution than 59% 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)

43 thousand lbs

Above Typical

6.5x more than typical Houston property
≈ 2 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)

43 thousand lbs

Above Typical

8.8x 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)

0 lbs

None

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
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs
This Property (2014-2024)	42,539 lbs	42,539 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs
This Property (2024 Only)	4,375 lbs	165 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 59% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 40-49th percentile (slightly higher than average).

Top chemicals released near this property (past 10 years):

N-Methyl-2-pyrrolidone, Ammonia, Methanol, Xylene (mixed isomers), Methyl tert-butyl ether

View the full list of 18 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (18 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Total (lbs, 10yr)
1	N-Methyl-2-pyrrolidone	872-50-4	31,840 lbs	31,840 lbs
2	Ammonia	7664-41-7	3,770 lbs	3,770 lbs
3	Methanol	67-56-1	1,849 lbs	1,849 lbs
4	Xylene (mixed isomers)	1330-20-7	1,187 lbs	1,187 lbs
5	Methyl tert-butyl ether	1634-04-4	1,021 lbs	1,021 lbs
6	Toluene	108-88-3	856 lbs	856 lbs
7	Ethylene glycol	107-21-1	605 lbs	605 lbs
8	1,2,4-Trimethylbenzene	95-63-6	318 lbs	318 lbs
9	Benzene	71-43-2	218 lbs	218 lbs
10	n-Hexane	110-54-3	208 lbs	208 lbs
11	Ethylbenzene	100-41-4	198 lbs	198 lbs
12	Zinc compounds	N982	192 lbs	192 lbs
13	Cadmium compounds	N078	106 lbs	106 lbs
14	Cadmium And Cadmium Compounds	N078	70 lbs	70 lbs
15	Cyanide compounds	N106	50 lbs	50 lbs
16	Naphthalene	91-20-3	32 lbs	32 lbs
17	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	17 lbs	17 lbs
18	Cumene	98-82-8	1 lbs	1 lbs

Top chemicals released near this property (2024 only):

Cadmium And Cadmium Compounds, Zinc compounds, Chromium compounds (except for chromite ore mined in the Transvaal Region), Methanol, Cyanide compounds

View the full list of 10 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (10 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Cadmium And Cadmium Compounds	N078	10 lbs	1,927 lbs
2	Zinc compounds	N982	14 lbs	1,335 lbs
3	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	1 lbs	902 lbs
4	Methanol	67-56-1	125 lbs	125 lbs
5	Cyanide compounds	N106	5 lbs	46 lbs
6	Molybdenum trioxide	1313-27-5	0 lbs	21 lbs
7	Ethylene glycol	107-21-1	10 lbs	10 lbs
8	Nickel And Nickel Compounds	N495	0 lbs	5 lbs
9	Vanadium (except when contained in an alloy)	7440-62-2	0 lbs	3 lbs
10	Lead compounds	N420	0 lbs	1 lbs