Home > Analysis: 1214 Montana St, La Porte, TX 77571 10/08/2025

📊 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

1214 MONTANA ST LA PORTE 77571

Building Size

1,525 sqft

Total structure area from HCAD building records.

Elevation

14.19 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: 4.19 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 77% 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)

573 thousand lbs

Very High

87.9x more than typical Houston property
≈ 29 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)

573 thousand lbs

Extremely High

118.9x 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)

54 lbs

Above Typical

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)	573,199 lbs	573,145 lbs	54 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	415,444 lbs	54,228 lbs	0 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 77% 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):

Methanol, Ammonia, Hydroquinone, Propylene, Methyl isobutyl ketone

View the full list of 40 chemicals below.

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

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Methanol	67-56-1	177,343	0	177,343
2	Ammonia	7664-41-7	87,668	0	87,668
3	Hydroquinone	123-31-9	42,495	0	42,495
4	Propylene	115-07-1	36,801	0	36,801
5	Methyl isobutyl ketone	108-10-1	36,313	0	36,313
6	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	33,058	0	33,058
7	Cumene	98-82-8	31,096	0	31,096
8	Ethylene	74-85-1	22,857	0	22,857
9	Vinyl acetate	108-05-4	22,306	0	22,306
10	Acetaldehyde	75-07-0	12,256	0	12,256
11	Benzene	71-43-2	10,536	0	10,536
12	Chlorine	7782-50-5	10,430	0	10,430
13	Xylene (mixed isomers)	1330-20-7	10,381	0	10,381
14	Styrene	100-42-5	7,344	0	7,344
15	Chloroacetic acid	79-11-8	4,175	0	4,175
16	Acrylic acid	79-10-7	3,532	0	3,532
17	Chlorobenzene	108-90-7	3,127	0	3,127
18	Methyl methacrylate	80-62-6	3,050	0	3,050
19	Phosgene	75-44-5	1,958	0	1,958
20	Acetonitrile	75-05-8	1,765	0	1,765
21	Methyl tert-butyl ether	1634-04-4	1,591	0	1,591
22	Triethylamine	121-44-8	1,515	0	1,515
23	Ethyl chloroformate	541-41-3	1,467	0	1,467
24	Methyl chlorocarbonate	79-22-1	1,449	0	1,449
25	sec-Butyl alcohol	78-92-2	1,434	0	1,434
26	Ethylene oxide	75-21-8	1,431	0	1,431
27	Toluene	108-88-3	1,261	0	1,261
28	n-Butyl alcohol	71-36-3	1,164	0	1,164
29	Diphenylamine	122-39-4	997	0	997
30	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	597	0	597
31	N,N-Dimethylformamide	68-12-2	535	0	535
32	Manganese	7439-96-5	511	0	511
33	Propylene oxide	75-56-9	371	0	371
34	Dichloromethane	75-09-2	251	0	251
35	Zinc compounds	N982	35	33	68
36	Antimony compounds	N010	20	15	35
37	Ethylene glycol	107-21-1	14	0	14
38	Antimony And Antimony Compounds	N010	5	5	10
39	Butyl acrylate	141-32-2	5	0	5
40	Nickel compounds	N495	0	1	1

Top chemicals released near this property (2024 only):

Methanol, Chloroacetic acid, Propylene, Ammonia, Vinyl acetate

View the full list of 26 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (26 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Methanol	67-56-1	10,953	335,512
2	Chloroacetic acid	79-11-8	476	20,694
3	Propylene	115-07-1	10,035	10,035
4	Ammonia	7664-41-7	7,795	8,021
5	Vinyl acetate	108-05-4	2,418	7,117
6	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	6,255	6,255
7	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	0	5,055
8	Hydroquinone	123-31-9	4,862	4,862
9	Methyl isobutyl ketone	108-10-1	3,997	3,997
10	sec-Butyl alcohol	78-92-2	93	3,447
11	Cumene	98-82-8	2,611	2,611
12	n-Butyl alcohol	71-36-3	75	2,529
13	Acetaldehyde	75-07-0	494	1,132
14	Benzene	71-43-2	1,090	1,090
15	Chlorine	7782-50-5	961	961
16	Ethylene	74-85-1	679	679
17	Ethylene oxide	75-21-8	420	420
18	Methyl methacrylate	80-62-6	387	387
19	Acrylic acid	79-10-7	186	192
20	Ethyl chloroformate	541-41-3	120	120
21	Styrene	100-42-5	116	116
22	Diphenylamine	122-39-4	103	103
23	Propylene oxide	75-56-9	60	60
24	Phosgene	75-44-5	27	27
25	Methyl chlorocarbonate	79-22-1	13	13
26	Ethylene glycol	107-21-1	3	9