Home > Analysis: 139 Pine Bluff St, La Porte, TX 77571 03/05/2025

📊 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

139 PINE BLUFF ST LA PORTE 77571

Building Size

902 sqft

Total structure area from HCAD building records.

Elevation

11.08 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: 1.08 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)

1.58 million lbs

Extremely High

242.6x 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)

1.58 million lbs

Extremely High

328.1x 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)

566 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)	1,582,750 lbs	1,582,184 lbs	566 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	1,407,517 lbs	120,157 lbs	51 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):

Ethylene, Methanol, Acrylic acid, Ammonia, Vinyl acetate

View the full list of 53 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (53 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Ethylene	74-85-1	323,747	0	323,747
2	Methanol	67-56-1	288,963	55	289,018
3	Acrylic acid	79-10-7	247,770	0	247,770
4	Ammonia	7664-41-7	247,756	0	247,756
5	Vinyl acetate	108-05-4	120,415	0	120,415
6	Cyclohexane	110-82-7	102,641	0	102,641
7	Propylene oxide	75-56-9	95,325	0	95,325
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	1,3-Butadiene	106-99-0	12,674	0	12,674
12	Propylene	115-07-1	9,096	0	9,096
13	Xylene (mixed isomers)	1330-20-7	8,223	0	8,223
14	Formaldehyde	50-00-0	7,593	0	7,593
15	Trade Secret	TRD SECRT	5,905	88	5,993
16	Styrene	100-42-5	5,569	0	5,569
17	1,2,4-Trimethylbenzene	95-63-6	4,474	0	4,474
18	Toluene	108-88-3	3,240	0	3,240
19	1,4-Dioxane	123-91-1	2,644	0	2,644
20	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	2,610	0	2,610
21	Acetaldehyde	75-07-0	2,587	0	2,587
22	Butyl acrylate	141-32-2	2,512	0	2,512
23	1,2-Butylene oxide	106-88-7	2,348	0	2,348
24	Chlorine	7782-50-5	2,246	0	2,246
25	Formic acid	64-18-6	2,017	0	2,017
26	Nonylphenol	N530	1,974	0	1,974
27	Allyl alcohol	107-18-6	1,820	0	1,820
28	Naphthalene	91-20-3	1,572	0	1,572
29	Nitric acid	7697-37-2	1,405	0	1,405
30	tert-Butyl alcohol	75-65-0	1,254	0	1,254
31	Dicyclopentadiene	77-73-6	1,178	0	1,178
32	Ethylene glycol	107-21-1	1,118	0	1,118
33	Nonylphenol Ethoxylates	N535	773	0	773
34	Ethylbenzene	100-41-4	728	0	728
35	Maleic anhydride	108-31-6	534	0	534
36	Acrolein	107-02-8	402	0	402
37	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	370	370
38	Hydroquinone	123-31-9	355	0	355
39	Benzyl chloride	100-44-7	228	0	228
40	Ethylene oxide	75-21-8	169	0	169
41	n-Butyl alcohol	71-36-3	114	0	114
42	Diethanolamine	111-42-2	106	0	106
43	Diethyl sulfate	64-67-5	85	0	85
44	Zinc compounds	N982	48	33	81
45	Epichlorohydrin	106-89-8	42	0	42
46	Antimony compounds	N010	20	15	35
47	Acetonitrile	75-05-8	33	0	33
48	Bis(2-chloroethyl) ether	111-44-4	26	0	26
49	2,4-Dimethylphenol	105-67-9	17	0	17
50	Cumene	98-82-8	15	0	15
51	Phthalic anhydride	85-44-9	13	0	13
52	Antimony And Antimony Compounds	N010	5	5	10
53	1,3-Phenylenediamine	108-45-2	2	0	2

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Acrylic acid, Vinyl acetate, Toluene

View the full list of 41 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (41 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Methanol	67-56-1	15,367	5	497,442
2	Allyl alcohol	107-18-6	96	0	233,588
3	Acrylic acid	79-10-7	20,841	0	124,064
4	Vinyl acetate	108-05-4	11,698	0	121,509
5	Toluene	108-88-3	258	0	79,083
6	Nickel compounds	N495	0	0	74,741
7	Xylene (mixed isomers)	1330-20-7	451	0	64,433
8	Cyclohexane	110-82-7	8,101	0	29,411
9	Styrene	100-42-5	424	0	29,331
10	Ethylene	74-85-1	24,034	0	24,034
11	Ammonia	7664-41-7	23,068	0	23,164
12	Acetaldehyde	75-07-0	2	0	21,995
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	7,914	0	7,917
17	Dicyclopentadiene	77-73-6	97	0	7,551
18	Acetonitrile	75-05-8	24	0	4,091
19	Naphthalene	91-20-3	223	0	3,764
20	Ethylene glycol	107-21-1	103	0	2,847
21	Nonylphenol	N530	551	0	2,678
22	Isoprene	78-79-5	2,125	0	2,125
23	Certain glycol ethers	N230	421	0	2,084
24	1,2,4-Trimethylbenzene	95-63-6	599	0	1,996
25	Formic acid	64-18-6	175	0	1,197
26	1,3-Butadiene	106-99-0	1,187	0	1,187
27	Formaldehyde	50-00-0	296	0	936
28	Propylene	115-07-1	700	0	700
29	Trade Secret	TRD SECRT	0	46	581
30	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	0	551
31	Benzyl chloride	100-44-7	119	0	379
32	Nitric acid	7697-37-2	217	0	217
33	Hydroquinone	123-31-9	23	0	185
34	1,4-Dioxane	123-91-1	126	0	126
35	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	119	0	119
36	n-Butyl alcohol	71-36-3	10	0	95
37	1,2-Butylene oxide	106-88-7	52	0	52
38	Ethylene oxide	75-21-8	42	0	42
39	Acrolein	107-02-8	28	0	38
40	Antimony And Antimony Compounds	N010	0	0	33
41	Maleic anhydride	108-31-6	26	0	26