📊 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

0 GREENS BAYOU ST HOUSTON 77015

Elevation

27.42 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: 17.42 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

Moderate

Higher pollution than 67% 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)

153 thousand lbs

High

23.4x more than typical Houston property
≈ 8 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)

150 thousand lbs

High

31.0x 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)

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)	152,508 lbs	149,553 lbs	2,955 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	4,047 lbs	3,144 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 67% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile (higher than average pollution).

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

Styrene, Xylene (mixed isomers), Toluene, n-Hexane, Ethylbenzene

View the full list of 31 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (31 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Styrene	100-42-5	59,223 lbs	0 lbs	59,223 lbs
2	Xylene (mixed isomers)	1330-20-7	21,357 lbs	0 lbs	21,357 lbs
3	Toluene	108-88-3	13,120 lbs	0 lbs	13,696 lbs
4	n-Hexane	110-54-3	12,725 lbs	0 lbs	12,725 lbs
5	Ethylbenzene	100-41-4	10,531 lbs	0 lbs	10,531 lbs
6	Methanol	67-56-1	6,541 lbs	0 lbs	6,541 lbs
7	Benzene	71-43-2	6,362 lbs	0 lbs	6,362 lbs
8	Ammonia	7664-41-7	3,125 lbs	0 lbs	3,125 lbs
9	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
10	Manganese	7439-96-5	1,668 lbs	543 lbs	2,211 lbs
11	Chromium	7440-47-3	1,182 lbs	925 lbs	2,106 lbs
12	Nickel	7440-02-0	1,350 lbs	544 lbs	1,894 lbs
13	Cyclohexane	110-82-7	1,732 lbs	0 lbs	1,732 lbs
14	Chlorine	7782-50-5	1,412 lbs	0 lbs	1,412 lbs
15	Manganese compounds	N450	990 lbs	262 lbs	1,252 lbs
16	Formic acid	64-18-6	1,012 lbs	0 lbs	1,012 lbs
17	Certain glycol ethers	N230	903 lbs	0 lbs	903 lbs
18	1,2,4-Trimethylbenzene	95-63-6	863 lbs	0 lbs	863 lbs
19	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	410 lbs	417 lbs	828 lbs
20	Nickel compounds	N495	443 lbs	250 lbs	694 lbs
21	Ethylene glycol	107-21-1	398 lbs	0 lbs	398 lbs
22	Aluminum (fume or dust)	7429-90-5	250 lbs	0 lbs	250 lbs
23	Copper	7440-50-8	250 lbs	0 lbs	250 lbs
24	Cobalt	7440-48-4	250 lbs	0 lbs	250 lbs
25	Phthalic anhydride	85-44-9	184 lbs	0 lbs	184 lbs
26	Maleic anhydride	108-31-6	139 lbs	0 lbs	139 lbs
27	Naphthalene	91-20-3	29 lbs	0 lbs	29 lbs
28	Nitric acid	7697-37-2	28 lbs	0 lbs	28 lbs
29	Nonylphenol Ethoxylates	N535	10 lbs	0 lbs	10 lbs
30	Lead And Lead Compounds	N420	0 lbs	7 lbs	7 lbs
31	Lead compounds	N420	0 lbs	6 lbs	7 lbs

Top chemicals released near this property (2024 only):

Methanol, Toluene, Cyclohexane, Manganese, Chromium

View the full list of 9 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (9 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Methanol	67-56-1	1,343 lbs	0 lbs	1,343 lbs
2	Toluene	108-88-3	314 lbs	0 lbs	890 lbs
3	Cyclohexane	110-82-7	759 lbs	0 lbs	759 lbs
4	Manganese	7439-96-5	162 lbs	86 lbs	248 lbs
5	Chromium	7440-47-3	71 lbs	144 lbs	215 lbs
6	Certain glycol ethers	N230	214 lbs	0 lbs	214 lbs
7	Nickel	7440-02-0	108 lbs	86 lbs	202 lbs
8	Formic acid	64-18-6	173 lbs	0 lbs	173 lbs
9	Lead compounds	N420	0 lbs	3 lbs	3 lbs