Home > Analysis: 1202 Travis St, La Porte, TX 77571 07/03/2025

📊 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

1202 TRAVIS ST LA PORTE 77571

Building Size

1,970 sqft

Total structure area from HCAD building records.

Elevation

20.88 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: 10.88 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

Very High

Higher pollution than 93% 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)

19.88 million lbs

Extremely High

3046.5x more than typical Houston property
≈ 994 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)

7.05 million lbs

Extremely High

1461.2x 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)

1.65 million lbs

Extremely High

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)	19,876,275 lbs	7,046,623 lbs	1,654,460 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	2,783,690 lbs	528,791 lbs	66,615 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 93% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

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

Methanol, Vinyl acetate, Ethylene, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene

View the full list of 47 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (47 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Methanol	67-56-1	1,878,774	648,774	10,192,473
2	Vinyl acetate	108-05-4	1,379,623	5,684	4,084,849
3	Ethylene	74-85-1	1,516,145	0	1,516,145
4	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	959,382	959,382
5	Propylene	115-07-1	942,383	0	942,383
6	Acetaldehyde	75-07-0	215,200	0	550,235
7	Hydroquinone	123-31-9	0	0	430,145
8	n-Hexane	110-54-3	361,016	0	361,016
9	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	216,585	0	216,585
10	Ammonia	7664-41-7	115,714	10,754	126,468
11	Xylene (mixed isomers)	1330-20-7	54,281	0	68,626
12	Formaldehyde	50-00-0	63,808	0	63,808
13	Certain glycol ethers	N230	62,831	0	62,831
14	n-Butyl alcohol	71-36-3	48,129	0	48,129
15	Toluene	108-88-3	45,013	3	45,016
16	Methyl iodide	74-88-4	37,993	0	37,993
17	Copper compounds	N100	1	84	29,084
18	Sodium nitrite	7632-00-0	0	26,012	26,012
19	Chlorine	7782-50-5	22,258	1,928	24,186
20	Hydrogen fluoride	7664-39-3	19,001	0	19,001
21	Ethylene glycol	107-21-1	16,751	0	16,751
22	Boron trifluoride	7637-07-2	14,190	0	14,190
23	Dimethylamine	124-40-3	7,035	0	7,035
24	Maleic anhydride	108-31-6	5,569	0	5,569
25	Methyl methacrylate	80-62-6	5,482	0	5,482
26	Dichloromethane	75-09-2	5,437	0	5,437
27	Acetonitrile	75-05-8	5,326	0	5,326
28	Mercury	7439-97-6	0	0	2,200
29	Methyl acrylate	96-33-3	2,031	0	2,031
30	Di(2-ethylhexyl) phthalate	117-81-7	2,020	0	2,020
31	Aluminum oxide (fibrous forms)	1344-28-1	1,750	0	1,750
32	Zinc compounds	N982	0	1,141	1,141
33	Acrolein	107-02-8	810	0	810
34	Manganese	7439-96-5	511	282	793
35	Ethylbenzene	100-41-4	316	3	319
36	Naphthalene	91-20-3	245	8	253
37	1,3-Butadiene	106-99-0	242	0	242
38	Hexazinone	51235-04-2	0	212	212
39	Nickel	7440-02-0	0	152	152
40	Chromium	7440-47-3	45	25	70
41	sec-Butyl alcohol	78-92-2	68	0	68
42	Benzene	71-43-2	31	5	36
43	Nickel compounds	N495	4	3	8
44	Copper And Copper Compounds	N100	0	6	6
45	Nickel And Nickel Compounds	N495	2	1	3
46	Lead	7439-92-1	0	1	1
47	Methyl isocyanate	624-83-9	1	0	1

Top chemicals released near this property (2024 only):

Methanol, Aluminum oxide (fibrous forms), Ethylene, Maleic anhydride, Vinyl acetate

View the full list of 32 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (32 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Methanol	67-56-1	72,331	64,000	1,684,257
2	Aluminum oxide (fibrous forms)	1344-28-1	250	0	353,010
3	Ethylene	74-85-1	146,385	0	146,385
4	Maleic anhydride	108-31-6	1,569	0	134,889
5	Vinyl acetate	108-05-4	85,022	410	128,367
6	Acetaldehyde	75-07-0	56,670	0	89,250
7	Propylene	115-07-1	88,554	0	88,554
8	Ammonia	7664-41-7	9,091	37	47,520
9	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	29,545	0	29,545
10	Hydroquinone	123-31-9	0	0	28,819
11	n-Hexane	110-54-3	24,235	0	24,235
12	Acrolein	107-02-8	209	0	7,515
13	Formaldehyde	50-00-0	3,559	0	5,799
14	Certain glycol ethers	N230	2,700	0	2,700
15	Chlorine	7782-50-5	2,260	0	2,260
16	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	2,100	2,100
17	Hydrogen fluoride	7664-39-3	1,738	0	1,738
18	Polycyclic aromatic compounds	N590	0	0	1,652
19	Methyl iodide	74-88-4	1,600	0	1,600
20	Boron trifluoride	7637-07-2	1,192	0	1,192
21	Xylene (mixed isomers)	1330-20-7	1,144	0	1,144
22	Lead	7439-92-1	0	1	354
23	Ethylbenzene	100-41-4	316	0	316
24	Naphthalene	91-20-3	245	6	251
25	Methyl methacrylate	80-62-6	142	0	142
26	Zinc compounds	N982	0	60	60
27	1,3-Butadiene	106-99-0	8	0	8
28	Toluene	108-88-3	7	1	8
29	n-Butyl alcohol	71-36-3	7	0	7
30	sec-Butyl alcohol	78-92-2	5	0	5
31	Benzene	71-43-2	5	1	5
32	Ethylene glycol	107-21-1	1	0	1