📊 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

12634 EAST FWY HOUSTON 77015

Elevation

27.56 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)

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: 17.56 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 76% 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)

542 thousand lbs

Very High

83.1x more than typical Houston property
≈ 27 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)

539 thousand lbs

Extremely High

111.8x 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)

3 thousand lbs

Very 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)	541,989 lbs	539,034 lbs	2,955 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	52,715 lbs	52,386 lbs	319 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 76% 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):

1,3-Butadiene, Ethylene, n-Hexane, Styrene, Xylene (mixed isomers)

View the full list of 30 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (30 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	1,3-Butadiene	106-99-0	203,018 lbs	0 lbs	203,018 lbs
2	Ethylene	74-85-1	165,454 lbs	0 lbs	165,454 lbs
3	n-Hexane	110-54-3	46,122 lbs	0 lbs	46,122 lbs
4	Styrene	100-42-5	26,310 lbs	0 lbs	26,310 lbs
5	Xylene (mixed isomers)	1330-20-7	22,615 lbs	0 lbs	22,615 lbs
6	Cyclohexane	110-82-7	14,656 lbs	0 lbs	14,656 lbs
7	Isoprene	78-79-5	13,272 lbs	0 lbs	13,272 lbs
8	Toluene	108-88-3	12,607 lbs	0 lbs	12,607 lbs
9	Ethylbenzene	100-41-4	10,705 lbs	0 lbs	10,705 lbs
10	Benzene	71-43-2	7,037 lbs	0 lbs	7,037 lbs
11	Methanol	67-56-1	5,617 lbs	0 lbs	5,617 lbs
12	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	3,066 lbs	0 lbs	3,066 lbs
13	Manganese	7439-96-5	1,668 lbs	543 lbs	2,211 lbs
14	Chromium	7440-47-3	1,182 lbs	925 lbs	2,106 lbs
15	Nickel	7440-02-0	1,350 lbs	544 lbs	1,894 lbs
16	Manganese compounds	N450	990 lbs	262 lbs	1,252 lbs
17	1,2,4-Trimethylbenzene	95-63-6	836 lbs	0 lbs	836 lbs
18	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	410 lbs	417 lbs	828 lbs
19	Nickel compounds	N495	443 lbs	250 lbs	694 lbs
20	Ethylene glycol	107-21-1	343 lbs	0 lbs	343 lbs
21	Aluminum (fume or dust)	7429-90-5	250 lbs	0 lbs	250 lbs
22	Copper	7440-50-8	250 lbs	0 lbs	250 lbs
23	Cobalt	7440-48-4	250 lbs	0 lbs	250 lbs
24	Phthalic anhydride	85-44-9	184 lbs	0 lbs	184 lbs
25	Maleic anhydride	108-31-6	139 lbs	0 lbs	139 lbs
26	Propylene	115-07-1	126 lbs	0 lbs	126 lbs
27	Certain glycol ethers	N230	105 lbs	0 lbs	105 lbs
28	Naphthalene	91-20-3	29 lbs	0 lbs	29 lbs
29	Lead And Lead Compounds	N420	0 lbs	7 lbs	7 lbs
30	Lead compounds	N420	0 lbs	6 lbs	7 lbs

Top chemicals released near this property (2024 only):

1,3-Butadiene, Ethylene, Isoprene, n-Hexane, Cyclohexane

View the full list of 11 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (11 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	1,3-Butadiene	106-99-0	32,375 lbs	0 lbs	32,375 lbs
2	Ethylene	74-85-1	14,466 lbs	0 lbs	14,466 lbs
3	Isoprene	78-79-5	2,371 lbs	0 lbs	2,371 lbs
4	n-Hexane	110-54-3	2,350 lbs	0 lbs	2,350 lbs
5	Cyclohexane	110-82-7	294 lbs	0 lbs	294 lbs
6	Manganese	7439-96-5	162 lbs	86 lbs	248 lbs
7	Chromium	7440-47-3	71 lbs	144 lbs	215 lbs
8	Nickel	7440-02-0	108 lbs	86 lbs	202 lbs
9	Benzene	71-43-2	105 lbs	0 lbs	108 lbs
10	Propylene	115-07-1	83 lbs	0 lbs	83 lbs
11	Lead compounds	N420	0 lbs	3 lbs	3 lbs