Home > Analysis: 2601 S Broadway St #32, La Porte, TX 77571 07/11/2025

📊 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

2601 S BROADWAY ST 3 LA PORTE 77571

Building Size

2,068 sqft

Total structure area from HCAD building records.

Elevation

10.5 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)

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: 0.5 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

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)

1.59 million lbs

Extremely High

243.7x more than typical Houston property
≈ 79 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)

1.59 million lbs

Extremely High

329.6x 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)

479 lbs

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)	1,589,706 lbs	1,589,227 lbs	479 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	1,672,684 lbs	129,629 lbs	5 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):

Methanol, Ethylene, Ammonia, Vinyl acetate, Cyclohexane

View the full list of 57 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (57 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Methanol	67-56-1	355,257	55	355,312
2	Ethylene	74-85-1	346,604	0	346,604
3	Ammonia	7664-41-7	335,424	0	335,424
4	Vinyl acetate	108-05-4	142,721	0	142,721
5	Cyclohexane	110-82-7	102,641	0	102,641
6	Propylene oxide	75-56-9	95,696	0	95,696
7	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	35,668	0	35,668
8	Certain glycol ethers	N230	34,372	0	34,372
9	n-Hexane	110-54-3	17,593	0	17,593
10	Isoprene	78-79-5	15,828	0	15,828
11	Acetaldehyde	75-07-0	14,843	0	14,843
12	Chlorine	7782-50-5	12,676	0	12,676
13	1,3-Butadiene	106-99-0	12,674	0	12,674
14	Xylene (mixed isomers)	1330-20-7	8,223	0	8,223
15	Styrene	100-42-5	5,569	0	5,569
16	Formaldehyde	50-00-0	5,143	0	5,143
17	1,2,4-Trimethylbenzene	95-63-6	4,474	0	4,474
18	Chloroacetic acid	79-11-8	4,175	0	4,175
19	Acrylic acid	79-10-7	3,532	0	3,532
20	Toluene	108-88-3	3,240	0	3,240
21	Methyl methacrylate	80-62-6	3,050	0	3,050
22	1,4-Dioxane	123-91-1	2,644	0	2,644
23	Butyl acrylate	141-32-2	2,517	0	2,517
24	1,2-Butylene oxide	106-88-7	2,348	0	2,348
25	Nonylphenol	N530	1,974	0	1,974
26	Phosgene	75-44-5	1,958	0	1,958
27	Allyl alcohol	107-18-6	1,820	0	1,820
28	Ethylene oxide	75-21-8	1,600	0	1,600
29	Naphthalene	91-20-3	1,572	0	1,572
30	Ethyl chloroformate	541-41-3	1,467	0	1,467
31	Methyl chlorocarbonate	79-22-1	1,449	0	1,449
32	sec-Butyl alcohol	78-92-2	1,434	0	1,434
33	Nitric acid	7697-37-2	1,405	0	1,405
34	n-Butyl alcohol	71-36-3	1,279	0	1,279
35	tert-Butyl alcohol	75-65-0	1,254	0	1,254
36	Dicyclopentadiene	77-73-6	1,178	0	1,178
37	Ethylene glycol	107-21-1	1,132	0	1,132
38	Nonylphenol Ethoxylates	N535	773	0	773
39	Ethylbenzene	100-41-4	728	0	728
40	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	597	0	597
41	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	370	370
42	Benzyl chloride	100-44-7	228	0	228
43	Diethanolamine	111-42-2	106	0	106
44	Diethyl sulfate	64-67-5	85	0	85
45	Zinc compounds	N982	48	33	81
46	Epichlorohydrin	106-89-8	42	0	42
47	Antimony compounds	N010	20	15	35
48	N,N-Dimethylformamide	68-12-2	34	0	34
49	Acetonitrile	75-05-8	33	0	33
50	Bis(2-chloroethyl) ether	111-44-4	26	0	26
51	Formic acid	64-18-6	21	0	21
52	2,4-Dimethylphenol	105-67-9	17	0	17
53	Cumene	98-82-8	15	0	15
54	Phthalic anhydride	85-44-9	13	0	13
55	Antimony And Antimony Compounds	N010	5	5	10
56	1,3-Phenylenediamine	108-45-2	2	0	2
57	Nickel compounds	N495	0	1	1

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Vinyl acetate, Toluene, Nickel compounds

View the full list of 43 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (43 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Methanol	67-56-1	26,320	5	832,955
2	Allyl alcohol	107-18-6	96	0	233,588
3	Vinyl acetate	108-05-4	14,116	0	128,626
4	Toluene	108-88-3	258	0	79,083
5	Nickel compounds	N495	0	0	74,741
6	Xylene (mixed isomers)	1330-20-7	451	0	64,433
7	Ammonia	7664-41-7	30,863	0	31,185
8	Cyclohexane	110-82-7	8,101	0	29,411
9	Styrene	100-42-5	424	0	29,331
10	Ethylene	74-85-1	24,713	0	24,713
11	Acetaldehyde	75-07-0	496	0	23,127
12	Chloroacetic acid	79-11-8	476	0	20,694
13	n-Hexane	110-54-3	521	0	17,769
14	tert-Butyl alcohol	75-65-0	26	0	15,456
15	Ethylbenzene	100-41-4	94	0	9,983
16	Propylene oxide	75-56-9	7,974	0	7,977
17	Dicyclopentadiene	77-73-6	97	0	7,551
18	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	6,374	0	6,374
19	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	0	0	5,055
20	Acetonitrile	75-05-8	24	0	4,091
21	Naphthalene	91-20-3	223	0	3,764
22	sec-Butyl alcohol	78-92-2	93	0	3,447
23	Ethylene glycol	107-21-1	106	0	2,856
24	Nonylphenol	N530	551	0	2,678
25	n-Butyl alcohol	71-36-3	85	0	2,624
26	Isoprene	78-79-5	2,125	0	2,125
27	Certain glycol ethers	N230	421	0	2,084
28	1,2,4-Trimethylbenzene	95-63-6	599	0	1,996
29	1,3-Butadiene	106-99-0	1,187	0	1,187
30	Chlorine	7782-50-5	961	0	961
31	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	0	551
32	Ethylene oxide	75-21-8	462	0	462
33	Methyl methacrylate	80-62-6	387	0	387
34	Benzyl chloride	100-44-7	119	0	379
35	Formaldehyde	50-00-0	145	0	263
36	Nitric acid	7697-37-2	217	0	217
37	Acrylic acid	79-10-7	186	0	192
38	1,4-Dioxane	123-91-1	126	0	126
39	Ethyl chloroformate	541-41-3	120	0	120
40	1,2-Butylene oxide	106-88-7	52	0	52
41	Antimony And Antimony Compounds	N010	0	0	33
42	Phosgene	75-44-5	27	0	27
43	Methyl chlorocarbonate	79-22-1	13	0	13