Complete Property Analysis

Environmental risk, tax analysis, and property details for 0 Hwy 146, La Porte, TX 77507

HCAD #1005150000526

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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

0 Hwy 146, La Porte, TX 77507

Elevation

6.82 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)

16.66 ft

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

Area Inundated

294.2 acres

99.8% of 500m radius flooded.

Nearest Bayou Stage

N/A

No nearby bayou within monitoring range

Depth-Damage (HCAD Valuation)

Vacant lot (no building data).

Depth-Damage (Neighborhood)

Vacant lot (no building data).

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

10.0th percentile

Property Pollution Ranking

Very High

Higher pollution than 90% of Houston homes

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

Industrial Pollution Nearby (10 Years)

8.12 millionlbs

Extremely High

1244.9x more than typical Houston property

≈ 406 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

8.11 millionlbs

Extremely High

1681.1x more than typical Houston property

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

Water Pollution (10 Years)

15 thousandlbs

Extremely 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)	8,122,003 lbs	8,106,924 lbs	15,079 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	642,317 lbs	640,202 lbs	2,115 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 90% 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):
Methanol, Ethylene, tert-Butyl alcohol, Toluene, Ammonia
View the full list of 97 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(97 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Methanol	67-56-1	1,313,360 lbs	55 lbs	1,313,415 lbs
2	Ethylene	74-85-1	903,713 lbs	0 lbs	903,713 lbs
3	tert-Butyl alcohol	75-65-0	751,778 lbs	0 lbs	751,778 lbs
4	Toluene	108-88-3	723,761 lbs	0 lbs	723,761 lbs
5	Ammonia	7664-41-7	705,924 lbs	0 lbs	705,924 lbs
6	Propylene	115-07-1	669,054 lbs	0 lbs	669,054 lbs
7	Vinyl acetate	108-05-4	659,074 lbs	0 lbs	659,074 lbs
8	Acrylic acid	79-10-7	351,457 lbs	0 lbs	351,457 lbs
9	Propylene oxide	75-56-9	310,422 lbs	0 lbs	310,422 lbs
10	n-Hexane	110-54-3	263,995 lbs	0 lbs	263,995 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	Acetaldehyde	75-07-0	97,287 lbs	0 lbs	97,287 lbs
15	n-Butyl alcohol	71-36-3	91,430 lbs	0 lbs	91,430 lbs
16	Acrylonitrile	107-13-1	83,724 lbs	0 lbs	83,724 lbs
17	Ethylene glycol	107-21-1	76,930 lbs	0 lbs	76,930 lbs
18	Methyl methacrylate	80-62-6	62,766 lbs	0 lbs	63,038 lbs
19	Ethylene oxide	75-21-8	60,191 lbs	0 lbs	60,191 lbs
20	Isoprene	78-79-5	51,809 lbs	0 lbs	51,809 lbs
21	Molybdenum trioxide	1313-27-5	51,068 lbs	0 lbs	51,068 lbs
22	Hydroquinone	123-31-9	45,112 lbs	0 lbs	45,112 lbs
23	Butyl acrylate	141-32-2	42,511 lbs	0 lbs	42,511 lbs
24	Chlorodifluoromethane (HCFC-22)	75-45-6	38,792 lbs	0 lbs	38,792 lbs
25	Ethyl acrylate	140-88-5	37,048 lbs	0 lbs	37,048 lbs
26	Certain glycol ethers	N230	36,974 lbs	0 lbs	36,974 lbs
27	Methyl isobutyl ketone	108-10-1	36,313 lbs	0 lbs	36,313 lbs
28	Xylene (mixed isomers)	1330-20-7	35,083 lbs	0 lbs	35,083 lbs
29	Cumene	98-82-8	31,481 lbs	0 lbs	31,481 lbs
30	Phenol	108-95-2	30,497 lbs	0 lbs	30,497 lbs
31	Benzene	71-43-2	24,344 lbs	0 lbs	24,344 lbs
32	Methyl acrylate	96-33-3	23,024 lbs	0 lbs	23,024 lbs
33	Dicyclopentadiene	77-73-6	21,187 lbs	0 lbs	21,187 lbs
34	Styrene	100-42-5	20,372 lbs	0 lbs	20,503 lbs
35	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
36	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	45 lbs	14,517 lbs	14,562 lbs
37	Formaldehyde	50-00-0	12,338 lbs	0 lbs	12,338 lbs
38	Maleic anhydride	108-31-6	11,271 lbs	0 lbs	11,271 lbs
39	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
40	Dimethylamine	124-40-3	7,773 lbs	0 lbs	7,773 lbs
41	Naphthalene	91-20-3	6,405 lbs	0 lbs	6,405 lbs
42	Ethylbenzene	100-41-4	6,019 lbs	0 lbs	6,019 lbs
43	Trade Secret	TRD SECRT	5,905 lbs	88 lbs	5,993 lbs
44	Diphenylamine	122-39-4	5,851 lbs	0 lbs	5,851 lbs
45	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
46	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
47	Formic acid	64-18-6	4,910 lbs	0 lbs	4,910 lbs
48	1,2,4-Trimethylbenzene	95-63-6	4,822 lbs	0 lbs	4,822 lbs
49	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
50	Vanadium compounds	N770	3,122 lbs	0 lbs	3,137 lbs
51	Acetonitrile	75-05-8	2,760 lbs	0 lbs	2,760 lbs
52	Acrolein	107-02-8	2,670 lbs	0 lbs	2,670 lbs
53	Zinc compounds	N982	2,387 lbs	266 lbs	2,653 lbs
54	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
55	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
56	Nickel And Nickel Compounds	N495	2,238 lbs	75 lbs	2,313 lbs
57	Chlorine	7782-50-5	2,246 lbs	0 lbs	2,246 lbs
58	Nitric acid	7697-37-2	2,056 lbs	0 lbs	2,056 lbs
59	Nonylphenol	N530	1,974 lbs	0 lbs	1,974 lbs
60	Allyl alcohol	107-18-6	1,830 lbs	0 lbs	1,830 lbs
61	Vanadium (except when contained in an alloy)	7440-62-2	1,691 lbs	0 lbs	1,691 lbs
62	Nickel compounds	N495	1,389 lbs	22 lbs	1,410 lbs
63	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
64	Nonylphenol Ethoxylates	N535	773 lbs	0 lbs	773 lbs
65	Cobalt And Cobalt Compounds	N096	741 lbs	0 lbs	741 lbs
66	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
67	Chlorobenzene	108-90-7	583 lbs	0 lbs	583 lbs
68	N,N-Dimethylformamide	68-12-2	511 lbs	0 lbs	511 lbs
69	Cobalt compounds	N096	454 lbs	0 lbs	454 lbs
70	Hydrazine	302-01-2	437 lbs	0 lbs	437 lbs
71	Diethanolamine	111-42-2	414 lbs	0 lbs	414 lbs
72	Phosphorus (yellow or white)	12185-10-3	250 lbs	0 lbs	250 lbs
73	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
74	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
75	Butyraldehyde	123-72-8	186 lbs	0 lbs	186 lbs
76	4,4'-Isopropylidenediphenol	80-05-7	141 lbs	0 lbs	141 lbs
77	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	101 lbs	14 lbs	115 lbs
78	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
79	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
80	Antimony compounds	N010	20 lbs	15 lbs	35 lbs
81	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	29 lbs	4 lbs	33 lbs
82	Sodium nitrite	7632-00-0	33 lbs	0 lbs	33 lbs
83	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
84	Copper compounds	N100	0 lbs	18 lbs	18 lbs
85	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
86	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
87	Pyridine	110-86-1	10 lbs	0 lbs	10 lbs
88	Antimony And Antimony Compounds	N010	5 lbs	5 lbs	10 lbs
89	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
90	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
91	Lead compounds	N420	2 lbs	0 lbs	2 lbs
92	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
93	Biphenyl	92-52-4	2 lbs	0 lbs	2 lbs
94	Nickel	7440-02-0	2 lbs	0 lbs	2 lbs
95	Lead And Lead Compounds	N420	1 lbs	0 lbs	1 lbs
96	N-Methyl-2-pyrrolidone	872-50-4	1 lbs	0 lbs	1 lbs
97	Boron trifluoride	7637-07-2	1 lbs	0 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
tert-Butyl alcohol, Ethylene, Ammonia, Methanol, Propylene
View the full list of 67 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(67 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	Ethylene	74-85-1	78,951 lbs	0 lbs	78,951 lbs
3	Ammonia	7664-41-7	71,083 lbs	0 lbs	71,083 lbs
4	Methanol	67-56-1	61,973 lbs	5 lbs	61,978 lbs
5	Propylene	115-07-1	51,245 lbs	0 lbs	51,245 lbs
6	Toluene	108-88-3	40,637 lbs	0 lbs	40,637 lbs
7	Vinyl acetate	108-05-4	33,123 lbs	0 lbs	33,123 lbs
8	Acrylic acid	79-10-7	32,789 lbs	0 lbs	32,789 lbs
9	Propylene oxide	75-56-9	23,121 lbs	0 lbs	23,121 lbs
10	n-Hexane	110-54-3	22,480 lbs	0 lbs	22,480 lbs
11	Ethylene glycol	107-21-1	14,422 lbs	0 lbs	14,422 lbs
12	Methyl methacrylate	80-62-6	12,693 lbs	0 lbs	12,693 lbs
13	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
14	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
15	Cyclohexane	110-82-7	8,101 lbs	0 lbs	8,101 lbs
16	Hydroquinone	123-31-9	6,608 lbs	0 lbs	6,608 lbs
17	Molybdenum trioxide	1313-27-5	4,957 lbs	0 lbs	4,957 lbs
18	Acetaldehyde	75-07-0	4,543 lbs	0 lbs	4,543 lbs
19	1,3-Butadiene	106-99-0	4,450 lbs	0 lbs	4,450 lbs
20	Ethylene oxide	75-21-8	4,138 lbs	0 lbs	4,138 lbs
21	Methyl isobutyl ketone	108-10-1	3,997 lbs	0 lbs	3,997 lbs
22	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
23	Methyl acrylate	96-33-3	2,867 lbs	0 lbs	2,867 lbs
24	Butyl acrylate	141-32-2	2,678 lbs	0 lbs	2,678 lbs
25	Cumene	98-82-8	2,611 lbs	0 lbs	2,611 lbs
26	Dicyclopentadiene	77-73-6	2,465 lbs	0 lbs	2,465 lbs
27	Benzene	71-43-2	2,139 lbs	0 lbs	2,139 lbs
28	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	2,038 lbs	2,038 lbs
29	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
30	Phenol	108-95-2	1,875 lbs	0 lbs	1,875 lbs
31	Maleic anhydride	108-31-6	1,756 lbs	0 lbs	1,756 lbs
32	n-Butyl alcohol	71-36-3	1,564 lbs	0 lbs	1,564 lbs
33	Styrene	100-42-5	1,383 lbs	0 lbs	1,383 lbs
34	Xylene (mixed isomers)	1330-20-7	1,270 lbs	0 lbs	1,270 lbs
35	Formaldehyde	50-00-0	1,260 lbs	0 lbs	1,260 lbs
36	Acrolein	107-02-8	1,252 lbs	0 lbs	1,252 lbs
37	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
38	Nitric acid	7697-37-2	852 lbs	0 lbs	852 lbs
39	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
40	1,2,4-Trimethylbenzene	95-63-6	624 lbs	0 lbs	624 lbs
41	Nonylphenol	N530	551 lbs	0 lbs	551 lbs
42	Naphthalene	91-20-3	538 lbs	0 lbs	538 lbs
43	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
44	Certain glycol ethers	N230	493 lbs	0 lbs	493 lbs
45	Nickel And Nickel Compounds	N495	341 lbs	26 lbs	367 lbs
46	Ethylbenzene	100-41-4	365 lbs	0 lbs	365 lbs
47	Dimethylamine	124-40-3	228 lbs	0 lbs	228 lbs
48	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
49	Formic acid	64-18-6	175 lbs	0 lbs	175 lbs
50	Vanadium (except when contained in an alloy)	7440-62-2	170 lbs	0 lbs	170 lbs
51	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
52	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
53	Diphenylamine	122-39-4	105 lbs	0 lbs	105 lbs
54	Chlorobenzene	108-90-7	100 lbs	0 lbs	100 lbs
55	Cobalt And Cobalt Compounds	N096	100 lbs	0 lbs	100 lbs
56	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
57	Vanadium compounds	N770	67 lbs	0 lbs	67 lbs
58	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
59	Trade Secret	TRD SECRT	0 lbs	46 lbs	46 lbs
60	Hydrazine	302-01-2	39 lbs	0 lbs	39 lbs
61	N,N-Dimethylformamide	68-12-2	39 lbs	0 lbs	39 lbs
62	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
63	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
64	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
65	Acrylonitrile	107-13-1	4 lbs	0 lbs	4 lbs
66	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
67	4,4'-Isopropylidenediphenol	80-05-7	1 lbs	0 lbs	1 lbs