Complete Property Analysis

Environmental risk, tax analysis, and property details for 1019 Oak Leaf Ave, La Porte, TX 77571

HCAD #1000580000005

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🌍Environmental Assessment

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.

🌊Flood Risk Analysis

FEMA Zone AE

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

1019 Oak Leaf Ave, La Porte, TX 77571

Building Size

6,846sqft

Total structure area from HCAD building records.

Elevation

6.86 ft

Height above sea level from USGS data.

FEMA Flood Zone

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

Overall Risk

Very High

Property flooded at 9.84ft depth.

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 High

Flood Depth

9.84 ft±0.5 ft

Depth of water above ground level.

Water Surface Elevation (WSE)

16.70 ft

Water surface elevation relative to sea level (NAVD88 datum).

Area Inundated

294.9 acres

100.0% of 500m radius flooded.

Nearest Bayou Stage

N/A

No nearby bayou within monitoring range

Depth-Damage (HCAD Valuation)

$294,940

Based on HCAD building value of $453,755.

Depth-Damage (Neighborhood)

$321,861

Based on neighborhood replacement cost.

Analysis Method

COG Combined 5000 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.

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.

Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages

Obtain an Elevation Certificate to determine accurate flood insurance premiums

Simulation shows 3.0ft of flooding - mitigation measures recommended

Consider elevating utilities, HVAC systems, and electrical panels above anticipated flood levels

Simulation depth of 3.0ft indicates potential damage to contents and finishes

Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries

Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information

🏭Industrial Pollution Exposure

11.4th percentile

Property Pollution Ranking

High

Higher pollution than 89% of Houston homes

Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.

Industrial Pollution Nearby (10 Years)

5.55 millionlbs

Extremely High

850.4x more than typical Houston property

≈ 277 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

5.55 millionlbs

Extremely High

1150.4x more than typical Houston property

Includes fugitive emissions (leaks) and stack emissions (smokestacks).

Water Pollution (10 Years)

567lbs

High

Discharges to bayous, streams, and drainage systems.

Facilities Nearby

Industrial facilities within 2 miles

💡

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)	5,548,248 lbs	5,547,681 lbs	567 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	449,856 lbs	449,805 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 89% 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 chemicals released near this property (past 10 years):
tert-Butyl alcohol, Methanol, Toluene, Propylene, Ethylene
View the full list of 74 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(74 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	tert-Butyl alcohol	75-65-0	751,778 lbs	0 lbs	751,778 lbs
2	Methanol	67-56-1	737,196 lbs	55 lbs	737,251 lbs
3	Toluene	108-88-3	723,761 lbs	0 lbs	723,761 lbs
4	Propylene	115-07-1	607,960 lbs	0 lbs	607,960 lbs
5	Ethylene	74-85-1	509,845 lbs	0 lbs	509,845 lbs
6	Ammonia	7664-41-7	335,424 lbs	0 lbs	335,424 lbs
7	Propylene oxide	75-56-9	310,422 lbs	0 lbs	310,422 lbs
8	Acrylic acid	79-10-7	251,302 lbs	0 lbs	251,302 lbs
9	n-Hexane	110-54-3	205,902 lbs	0 lbs	205,902 lbs
10	Vinyl acetate	108-05-4	142,721 lbs	0 lbs	142,721 lbs
11	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
12	1,3-Butadiene	106-99-0	103,203 lbs	0 lbs	103,203 lbs
13	Cyclohexane	110-82-7	102,641 lbs	0 lbs	102,641 lbs
14	Acrylonitrile	107-13-1	83,639 lbs	0 lbs	83,639 lbs
15	n-Butyl alcohol	71-36-3	54,543 lbs	0 lbs	54,543 lbs
16	Isoprene	78-79-5	47,793 lbs	0 lbs	47,793 lbs
17	Hydroquinone	123-31-9	42,849 lbs	0 lbs	42,849 lbs
18	Ethylene glycol	107-21-1	37,504 lbs	0 lbs	37,504 lbs
19	Methyl isobutyl ketone	108-10-1	36,313 lbs	0 lbs	36,313 lbs
20	Xylene (mixed isomers)	1330-20-7	35,072 lbs	0 lbs	35,072 lbs
21	Certain glycol ethers	N230	34,372 lbs	0 lbs	34,372 lbs
22	Cumene	98-82-8	31,481 lbs	0 lbs	31,481 lbs
23	Phenol	108-95-2	30,497 lbs	0 lbs	30,497 lbs
24	Molybdenum trioxide	1313-27-5	26,754 lbs	0 lbs	26,754 lbs
25	Benzene	71-43-2	24,339 lbs	0 lbs	24,339 lbs
26	Dicyclopentadiene	77-73-6	21,187 lbs	0 lbs	21,187 lbs
27	Styrene	100-42-5	18,039 lbs	0 lbs	18,039 lbs
28	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	17,903 lbs	0 lbs	17,903 lbs
29	Acetaldehyde	75-07-0	15,347 lbs	0 lbs	15,347 lbs
30	Formaldehyde	50-00-0	10,409 lbs	0 lbs	10,409 lbs
31	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
32	Dimethylamine	124-40-3	7,773 lbs	0 lbs	7,773 lbs
33	Maleic anhydride	108-31-6	6,232 lbs	0 lbs	6,232 lbs
34	Naphthalene	91-20-3	6,170 lbs	0 lbs	6,170 lbs
35	Ethylbenzene	100-41-4	6,019 lbs	0 lbs	6,019 lbs
36	Trade Secret	TRD SECRT	5,905 lbs	88 lbs	5,993 lbs
37	Diphenylamine	122-39-4	5,851 lbs	0 lbs	5,851 lbs
38	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
39	Formic acid	64-18-6	4,772 lbs	0 lbs	4,772 lbs
40	1,2,4-Trimethylbenzene	95-63-6	4,544 lbs	0 lbs	4,544 lbs
41	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
42	Methyl methacrylate	80-62-6	3,050 lbs	0 lbs	3,050 lbs
43	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
44	Butyl acrylate	141-32-2	2,517 lbs	0 lbs	2,517 lbs
45	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
46	Chlorine	7782-50-5	2,246 lbs	0 lbs	2,246 lbs
47	Nonylphenol	N530	1,974 lbs	0 lbs	1,974 lbs
48	Allyl alcohol	107-18-6	1,820 lbs	0 lbs	1,820 lbs
49	Ethylene oxide	75-21-8	1,600 lbs	0 lbs	1,600 lbs
50	Nitric acid	7697-37-2	1,419 lbs	0 lbs	1,419 lbs
51	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
52	Nonylphenol Ethoxylates	N535	773 lbs	0 lbs	773 lbs
53	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	597 lbs	0 lbs	597 lbs
54	Chlorobenzene	108-90-7	559 lbs	0 lbs	559 lbs
55	Hydrazine	302-01-2	437 lbs	0 lbs	437 lbs
56	Acrolein	107-02-8	402 lbs	0 lbs	402 lbs
57	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	370 lbs	370 lbs
58	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
59	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
60	Diethanolamine	111-42-2	106 lbs	0 lbs	106 lbs
61	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
62	Zinc compounds	N982	48 lbs	33 lbs	81 lbs
63	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
64	Antimony compounds	N010	20 lbs	15 lbs	35 lbs
65	Acetonitrile	75-05-8	33 lbs	0 lbs	33 lbs
66	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
67	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
68	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
69	Antimony And Antimony Compounds	N010	5 lbs	5 lbs	10 lbs
70	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
71	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
72	Biphenyl	92-52-4	2 lbs	0 lbs	2 lbs
73	Boron trifluoride	7637-07-2	1 lbs	0 lbs	1 lbs
74	Nickel compounds	N495	0 lbs	1 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
tert-Butyl alcohol, Propylene, Toluene, Ethylene, Methanol
View the full list of 54 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(54 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	tert-Butyl alcohol	75-65-0	101,697 lbs	0 lbs	101,697 lbs
2	Propylene	115-07-1	49,181 lbs	0 lbs	49,181 lbs
3	Toluene	108-88-3	40,637 lbs	0 lbs	40,637 lbs
4	Ethylene	74-85-1	40,262 lbs	0 lbs	40,262 lbs
5	Methanol	67-56-1	36,168 lbs	5 lbs	36,173 lbs
6	Ammonia	7664-41-7	30,863 lbs	0 lbs	30,863 lbs
7	Propylene oxide	75-56-9	23,121 lbs	0 lbs	23,121 lbs
8	Acrylic acid	79-10-7	21,027 lbs	0 lbs	21,027 lbs
9	n-Hexane	110-54-3	19,447 lbs	0 lbs	19,447 lbs
10	Vinyl acetate	108-05-4	14,116 lbs	0 lbs	14,116 lbs
11	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
12	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
13	Cyclohexane	110-82-7	8,101 lbs	0 lbs	8,101 lbs
14	Hydroquinone	123-31-9	4,885 lbs	0 lbs	4,885 lbs
15	1,3-Butadiene	106-99-0	4,450 lbs	0 lbs	4,450 lbs
16	Methyl isobutyl ketone	108-10-1	3,997 lbs	0 lbs	3,997 lbs
17	Ethylene glycol	107-21-1	3,258 lbs	0 lbs	3,258 lbs
18	Molybdenum trioxide	1313-27-5	3,114 lbs	0 lbs	3,114 lbs
19	Cumene	98-82-8	2,611 lbs	0 lbs	2,611 lbs
20	Dicyclopentadiene	77-73-6	2,465 lbs	0 lbs	2,465 lbs
21	Benzene	71-43-2	2,139 lbs	0 lbs	2,139 lbs
22	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	1,959 lbs	0 lbs	1,959 lbs
23	Phenol	108-95-2	1,875 lbs	0 lbs	1,875 lbs
24	Maleic anhydride	108-31-6	1,351 lbs	0 lbs	1,351 lbs
25	Xylene (mixed isomers)	1330-20-7	1,270 lbs	0 lbs	1,270 lbs
26	n-Butyl alcohol	71-36-3	942 lbs	0 lbs	942 lbs
27	Styrene	100-42-5	798 lbs	0 lbs	798 lbs
28	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
29	1,2,4-Trimethylbenzene	95-63-6	624 lbs	0 lbs	624 lbs
30	Nonylphenol	N530	551 lbs	0 lbs	551 lbs
31	Naphthalene	91-20-3	538 lbs	0 lbs	538 lbs
32	Acetaldehyde	75-07-0	496 lbs	0 lbs	496 lbs
33	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
34	Ethylene oxide	75-21-8	462 lbs	0 lbs	462 lbs
35	Formaldehyde	50-00-0	447 lbs	0 lbs	447 lbs
36	Certain glycol ethers	N230	421 lbs	0 lbs	421 lbs
37	Methyl methacrylate	80-62-6	387 lbs	0 lbs	387 lbs
38	Ethylbenzene	100-41-4	365 lbs	0 lbs	365 lbs
39	Dimethylamine	124-40-3	228 lbs	0 lbs	228 lbs
40	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
41	Nitric acid	7697-37-2	219 lbs	0 lbs	219 lbs
42	Formic acid	64-18-6	175 lbs	0 lbs	175 lbs
43	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
44	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
45	Diphenylamine	122-39-4	105 lbs	0 lbs	105 lbs
46	Chlorobenzene	108-90-7	100 lbs	0 lbs	100 lbs
47	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
48	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
49	Trade Secret	TRD SECRT	0 lbs	46 lbs	46 lbs
50	Hydrazine	302-01-2	39 lbs	0 lbs	39 lbs
51	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
52	Acrolein	107-02-8	28 lbs	0 lbs	28 lbs
53	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
54	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs