Home > Analysis: 3114 Woodland Ct, La Porte, TX 77571 04/29/2025

📊 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

3114 WOODLAND CT LA PORTE 77571

Building Size

5,469 sqft

Total structure area from HCAD building records.

Elevation

9.07 ft

Height above sea level from USGS data.

FEMA Flood Zone

High Risk - 1% annual chance with established base flood elevation

Overall Risk

High

Property flooded at 0.9ft depth. Risk based on flood depth at structure.

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

High

Flood Depth

0.93 ft ±0.5 ft

Depth of water above ground 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)

Based on HCAD building value of $343,428 (5,469 sqft). Using U.S. Army Corps of Engineers depth-damage curves.

Depth-Damage Estimate (Neighborhood Comparison)

No neighborhood valuation estimate available. Building exists (5,469 sqft) but no comparable neighborhood data found.

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 Flooded

Flood Depth: 0.93 feet
Severity: Minor

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.
Simulation shows flooding at current water level - review property drainage and consider mitigation.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking

High

Higher pollution than 88% 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)

5.31 million lbs

Extremely High

814.0x more than typical Houston property
≈ 266 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)

5.31 million lbs

Extremely High

1101.2x 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)

567 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)	5,310,778 lbs	5,310,206 lbs	567 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	3,083,189 lbs	421,035 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 88% 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):

tert-Butyl alcohol, Methanol, Toluene, Propylene, Ethylene

View the full list of 69 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (69 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	tert-Butyl alcohol	75-65-0	751,778	0	751,778
2	Methanol	67-56-1	737,196	55	737,251
3	Toluene	108-88-3	711,522	0	711,522
4	Propylene	115-07-1	565,088	0	565,088
5	Ethylene	74-85-1	509,845	0	509,845
6	Ammonia	7664-41-7	335,424	0	335,424
7	Propylene oxide	75-56-9	310,422	0	310,422
8	Acrylic acid	79-10-7	251,302	0	251,302
9	n-Hexane	110-54-3	205,902	0	205,902
10	Vinyl acetate	108-05-4	142,721	0	142,721
11	Titanium tetrachloride	7550-45-0	108,195	0	108,195
12	Cyclohexane	110-82-7	102,641	0	102,641
13	1,3-Butadiene	106-99-0	89,666	0	89,666
14	Acrylonitrile	107-13-1	83,639	0	83,639
15	n-Butyl alcohol	71-36-3	54,543	0	54,543
16	Isoprene	78-79-5	47,793	0	47,793
17	Ethylene glycol	107-21-1	37,504	0	37,504
18	Xylene (mixed isomers)	1330-20-7	35,072	0	35,072
19	Certain glycol ethers	N230	34,372	0	34,372
20	Phenol	108-95-2	30,497	0	30,497
21	Molybdenum trioxide	1313-27-5	26,754	0	26,754
22	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	17,903	0	17,903
23	Acetaldehyde	75-07-0	15,347	0	15,347
24	Styrene	100-42-5	10,610	0	10,610
25	Formaldehyde	50-00-0	10,409	0	10,409
26	Epichlorohydrin	106-89-8	8,484	0	8,484
27	Dimethylamine	124-40-3	7,773	0	7,773
28	Maleic anhydride	108-31-6	6,232	0	6,232
29	Trade Secret	TRD SECRT	5,905	88	5,993
30	Ethylbenzene	100-41-4	5,941	0	5,941
31	Dibutyl phthalate	84-74-2	5,792	0	5,792
32	Diphenylamine	122-39-4	4,854	0	4,854
33	Formic acid	64-18-6	4,772	0	4,772
34	1,2,4-Trimethylbenzene	95-63-6	4,544	0	4,544
35	Propyleneimine	75-55-8	3,701	0	3,701
36	Methyl methacrylate	80-62-6	3,050	0	3,050
37	1,4-Dioxane	123-91-1	2,644	0	2,644
38	Butyl acrylate	141-32-2	2,517	0	2,517
39	1,2-Butylene oxide	106-88-7	2,348	0	2,348
40	Chlorine	7782-50-5	2,246	0	2,246
41	Nonylphenol	N530	1,974	0	1,974
42	Allyl alcohol	107-18-6	1,820	0	1,820
43	Naphthalene	91-20-3	1,635	0	1,635
44	Ethylene oxide	75-21-8	1,600	0	1,600
45	Nitric acid	7697-37-2	1,419	0	1,419
46	Dicyclopentadiene	77-73-6	1,387	0	1,387
47	Nonylphenol Ethoxylates	N535	773	0	773
48	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	597	0	597
49	Hydrazine	302-01-2	437	0	437
50	Acrolein	107-02-8	402	0	402
51	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	370	370
52	Hydroquinone	123-31-9	355	0	355
53	Benzyl chloride	100-44-7	228	0	228
54	Di(2-ethylhexyl) phthalate	117-81-7	222	0	222
55	Diethanolamine	111-42-2	106	0	106
56	Diethyl sulfate	64-67-5	85	0	85
57	Zinc compounds	N982	48	33	81
58	Phthalic anhydride	85-44-9	40	0	40
59	Antimony compounds	N010	20	15	35
60	Acetonitrile	75-05-8	33	0	33
61	Bis(2-chloroethyl) ether	111-44-4	26	0	26
62	2,4-Dimethylphenol	105-67-9	17	0	17
63	Triethylamine	121-44-8	10	0	15
64	Cumene	98-82-8	15	0	15
65	Antimony And Antimony Compounds	N010	5	5	10
66	1,3-Phenylenediamine	108-45-2	2	0	2
67	Lead	7439-92-1	2	0	2
68	Boron trifluoride	7637-07-2	1	0	1
69	Nickel compounds	N495	0	1	1

Top chemicals released near this property (2024 only):

Methanol, tert-Butyl alcohol, Allyl alcohol, Toluene, Vinyl acetate

View the full list of 55 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (55 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Methanol	67-56-1	36,168	5	1,122,753
2	tert-Butyl alcohol	75-65-0	101,697	0	650,543
3	Allyl alcohol	107-18-6	96	0	233,588
4	Toluene	108-88-3	39,610	0	172,406
5	Vinyl acetate	108-05-4	14,116	0	128,626
6	Acrylic acid	79-10-7	21,027	0	124,256
7	Dimethylamine	124-40-3	228	0	91,985
8	Nickel compounds	N495	0	0	74,741
9	Xylene (mixed isomers)	1330-20-7	1,270	0	66,506
10	Diphenylamine	122-39-4	2	0	48,628
11	Propylene oxide	75-56-9	23,121	0	41,146
12	Ethylene	74-85-1	40,262	0	40,262
13	Propylene	115-07-1	38,844	0	39,220
14	n-Hexane	110-54-3	19,447	0	36,695
15	Ammonia	7664-41-7	30,863	0	31,185
16	Styrene	100-42-5	682	0	29,589
17	Cyclohexane	110-82-7	8,101	0	29,411
18	Acetaldehyde	75-07-0	496	0	23,127
19	Isoprene	78-79-5	12,309	0	12,309
20	Titanium tetrachloride	7550-45-0	10,755	0	10,755
21	Ethylbenzene	100-41-4	365	0	10,266
22	Dicyclopentadiene	77-73-6	97	0	7,585
23	Phenol	108-95-2	1,875	0	6,506
24	Ethylene glycol	107-21-1	3,258	0	6,008
25	Vanadium compounds	N770	0	0	5,540
26	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	0	0	5,055
27	Naphthalene	91-20-3	235	0	4,135
28	Acetonitrile	75-05-8	24	0	4,091
29	1,3-Butadiene	106-99-0	3,642	0	3,642
30	Molybdenum trioxide	1313-27-5	3,114	0	3,114
31	Nonylphenol	N530	551	0	2,678
32	n-Butyl alcohol	71-36-3	942	0	2,104
33	Certain glycol ethers	N230	421	0	2,084
34	1,2,4-Trimethylbenzene	95-63-6	624	0	2,021
35	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	1,959	0	1,959
36	Maleic anhydride	108-31-6	1,351	0	1,351
37	Formic acid	64-18-6	175	0	1,197
38	Formaldehyde	50-00-0	447	0	1,090
39	Dibutyl phthalate	84-74-2	496	0	1,073
40	Epichlorohydrin	106-89-8	643	0	643
41	Trade Secret	TRD SECRT	0	46	581
42	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	0	551
43	Ethylene oxide	75-21-8	462	0	462
44	Methyl methacrylate	80-62-6	387	0	387
45	Benzyl chloride	100-44-7	119	0	379
46	Di(2-ethylhexyl) phthalate	117-81-7	222	0	222
47	Nitric acid	7697-37-2	219	0	219
48	Hydroquinone	123-31-9	23	0	185
49	1,4-Dioxane	123-91-1	126	0	126
50	1,2-Butylene oxide	106-88-7	52	0	52
51	Hydrazine	302-01-2	39	0	39
52	Acrolein	107-02-8	28	0	38
53	Antimony And Antimony Compounds	N010	0	0	33
54	Propyleneimine	75-55-8	32	0	32
55	Phthalic anhydride	85-44-9	14	0	14