Home > Analysis: 226 N 8th St, La Porte, TX 77571 12/18/2024

📊 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

226 N 8TH ST LA PORTE 77571

Elevation

19.7 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: 9.7 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 80% 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)

898 thousand lbs

Extremely High

137.7x more than typical Houston property
≈ 45 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)

898 thousand lbs

Extremely High

186.3x 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)	898,230 lbs	898,230 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs
This Property (2024 Only)	812,835 lbs	96,607 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 80% 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):

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol, Ammonia, Hydroquinone, Propylene

View the full list of 40 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (40 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Total (lbs, 10yr)
1	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	216,585	216,585
2	Methanol	67-56-1	199,825	199,825
3	Ammonia	7664-41-7	105,663	105,663
4	Hydroquinone	123-31-9	42,495	42,495
5	Propylene	115-07-1	41,301	41,301
6	Formaldehyde	50-00-0	36,646	36,646
7	Methyl isobutyl ketone	108-10-1	36,313	36,313
8	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	33,058	33,058
9	Cumene	98-82-8	31,096	31,096
10	Ethylene	74-85-1	29,857	29,857
11	Vinyl acetate	108-05-4	22,306	22,306
12	Hydrogen fluoride	7664-39-3	17,939	17,939
13	Acetaldehyde	75-07-0	12,256	12,256
14	Chlorine	7782-50-5	11,230	11,230
15	Benzene	71-43-2	10,536	10,536
16	Xylene (mixed isomers)	1330-20-7	10,381	10,381
17	Styrene	100-42-5	7,344	7,344
18	Chloroacetic acid	79-11-8	4,175	4,175
19	Acrylic acid	79-10-7	3,532	3,532
20	Chlorobenzene	108-90-7	3,127	3,127
21	Methyl methacrylate	80-62-6	3,050	3,050
22	Phosgene	75-44-5	1,958	1,958
23	Acetonitrile	75-05-8	1,765	1,765
24	Aluminum oxide (fibrous forms)	1344-28-1	1,750	1,750
25	Methyl tert-butyl ether	1634-04-4	1,591	1,591
26	Triethylamine	121-44-8	1,515	1,515
27	Ethyl chloroformate	541-41-3	1,467	1,467
28	Methyl chlorocarbonate	79-22-1	1,449	1,449
29	sec-Butyl alcohol	78-92-2	1,434	1,434
30	Ethylene oxide	75-21-8	1,431	1,431
31	Toluene	108-88-3	1,261	1,261
32	n-Butyl alcohol	71-36-3	1,164	1,164
33	Diphenylamine	122-39-4	997	997
34	N,N-Dimethylformamide	68-12-2	535	535
35	Manganese	7439-96-5	511	511
36	Propylene oxide	75-56-9	371	371
37	Dichloromethane	75-09-2	251	251
38	Chromium	7440-47-3	45	45
39	Ethylene glycol	107-21-1	14	14
40	Butyl acrylate	141-32-2	5	5

Top chemicals released near this property (2024 only):

Aluminum oxide (fibrous forms), Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chloroacetic acid, Propylene

View the full list of 30 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (30 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Aluminum oxide (fibrous forms)	1344-28-1	250	353,010
2	Methanol	67-56-1	16,034	340,606
3	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	29,545	29,545
4	Chloroacetic acid	79-11-8	476	20,694
5	Propylene	115-07-1	10,535	10,535
6	Ammonia	7664-41-7	8,690	8,916
7	Vinyl acetate	108-05-4	2,418	7,117
8	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	6,255	6,255
9	Formaldehyde	50-00-0	3,559	5,799
10	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	0	5,055
11	Hydroquinone	123-31-9	4,862	4,862
12	Methyl isobutyl ketone	108-10-1	3,997	3,997
13	sec-Butyl alcohol	78-92-2	93	3,447
14	Cumene	98-82-8	2,611	2,611
15	n-Butyl alcohol	71-36-3	75	2,529
16	Hydrogen fluoride	7664-39-3	1,738	1,738
17	Ethylene	74-85-1	1,329	1,329
18	Acetaldehyde	75-07-0	494	1,132
19	Chlorine	7782-50-5	1,121	1,121
20	Benzene	71-43-2	1,090	1,090
21	Ethylene oxide	75-21-8	420	420
22	Methyl methacrylate	80-62-6	387	387
23	Acrylic acid	79-10-7	186	192
24	Ethyl chloroformate	541-41-3	120	120
25	Styrene	100-42-5	116	116
26	Diphenylamine	122-39-4	103	103
27	Propylene oxide	75-56-9	60	60
28	Phosgene	75-44-5	27	27
29	Methyl chlorocarbonate	79-22-1	13	13
30	Ethylene glycol	107-21-1	3	9