Complete Property Analysis

Environmental risk, tax analysis, and property details for 9223 Highway 225, La Porte, TX 77571

HCAD #0401740000022

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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 X

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

9223 Highway 225, La Porte, TX 77571

Elevation

27.17 ft

Height above sea level from USGS data.

FEMA Flood Zone

Moderate to Low Risk - Outside 500-year floodplain

Overall Risk

Very Low

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

Very Low

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

66.7 acres

22.6% 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.

Minimal flood hazard area - property outside mapped high-risk zones

Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas

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

6.5th percentile

Property Pollution Ranking

Very High

Higher pollution than 94% of Houston homes

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

Industrial Pollution Nearby (10 Years)

18.59 millionlbs

Extremely High

2849.5x more than typical Houston property

≈ 930 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

10.82 millionlbs

Extremely High

2243.7x more than typical Houston property

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

Water Pollution (10 Years)

7.77 millionlbs

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)	18,590,915 lbs	10,819,854 lbs	7,771,060 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	2,449,458 lbs	922,131 lbs	673,027 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 94% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

📋

Top chemicals released near this property (past 10 years):
Methanol, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Vinyl acetate, Ethylene, Propylene
View the full list of 84 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(84 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Methanol	67-56-1	1,677,975 lbs	653,582 lbs	9,996,482 lbs
2	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	7,046,578 lbs	7,046,578 lbs
3	Vinyl acetate	108-05-4	1,447,723 lbs	5,684 lbs	4,152,949 lbs
4	Ethylene	74-85-1	3,764,129 lbs	0 lbs	3,764,129 lbs
5	Propylene	115-07-1	1,752,877 lbs	0 lbs	1,752,877 lbs
6	Ammonia	7664-41-7	345,454 lbs	13,974 lbs	780,908 lbs
7	n-Hexane	110-54-3	601,880 lbs	0 lbs	601,880 lbs
8	Acetaldehyde	75-07-0	219,696 lbs	0 lbs	554,731 lbs
9	Hydroquinone	123-31-9	0 lbs	0 lbs	430,145 lbs
10	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	181,408 lbs	0 lbs	181,408 lbs
11	1,2-Dichloroethane	107-06-2	177,067 lbs	59 lbs	177,125 lbs
12	Vinyl chloride	75-01-4	80,700 lbs	33 lbs	80,733 lbs
13	Chlorine	7782-50-5	63,776 lbs	3,421 lbs	67,197 lbs
14	Certain glycol ethers	N230	63,696 lbs	0 lbs	63,696 lbs
15	Xylene (mixed isomers)	1330-20-7	43,900 lbs	0 lbs	58,245 lbs
16	Toluene	108-88-3	54,752 lbs	66 lbs	54,818 lbs
17	1,3-Butadiene	106-99-0	50,362 lbs	0 lbs	50,362 lbs
18	Dicyclopentadiene	77-73-6	49,236 lbs	26 lbs	49,262 lbs
19	Methyl iodide	74-88-4	37,993 lbs	0 lbs	37,993 lbs
20	Sodium nitrite	7632-00-0	0 lbs	26,012 lbs	26,012 lbs
21	Zinc compounds	N982	6,213 lbs	19,557 lbs	25,770 lbs
22	Benzene	71-43-2	19,827 lbs	42 lbs	19,869 lbs
23	Ethylene glycol	107-21-1	18,529 lbs	0 lbs	18,529 lbs
24	Formaldehyde	50-00-0	16,402 lbs	0 lbs	16,402 lbs
25	Chlorobenzene	108-90-7	16,036 lbs	0 lbs	16,036 lbs
26	Chloroethane	75-00-3	14,531 lbs	0 lbs	14,531 lbs
27	Cyclohexane	110-82-7	14,194 lbs	0 lbs	14,194 lbs
28	Boron trifluoride	7637-07-2	14,190 lbs	0 lbs	14,190 lbs
29	Chloroform	67-66-3	11,497 lbs	51 lbs	11,547 lbs
30	N,N-Dimethylformamide	68-12-2	9,020 lbs	0 lbs	9,020 lbs
31	Carbon tetrachloride	56-23-5	7,770 lbs	0 lbs	7,770 lbs
32	Dimethylamine	124-40-3	7,035 lbs	0 lbs	7,035 lbs
33	Isoprene	78-79-5	5,909 lbs	0 lbs	5,909 lbs
34	Maleic anhydride	108-31-6	5,569 lbs	0 lbs	5,569 lbs
35	Methyl methacrylate	80-62-6	5,482 lbs	0 lbs	5,482 lbs
36	Dichloromethane	75-09-2	5,437 lbs	0 lbs	5,437 lbs
37	Acetonitrile	75-05-8	5,326 lbs	0 lbs	5,326 lbs
38	Diisocyanates	N120	4,276 lbs	0 lbs	4,276 lbs
39	1,1,2-Trichloroethane	79-00-5	2,836 lbs	0 lbs	2,836 lbs
40	Mercury	7439-97-6	0 lbs	0 lbs	2,200 lbs
41	Ethylidene dichloride	75-34-3	2,180 lbs	0 lbs	2,180 lbs
42	Methyl acrylate	96-33-3	2,031 lbs	0 lbs	2,031 lbs
43	Di(2-ethylhexyl) phthalate	117-81-7	2,020 lbs	0 lbs	2,020 lbs
44	Aluminum oxide (fibrous forms)	1344-28-1	1,750 lbs	0 lbs	1,750 lbs
45	1,2-Dichloroethylene	540-59-0	1,428 lbs	0 lbs	1,428 lbs
46	Styrene	100-42-5	1,209 lbs	0 lbs	1,209 lbs
47	Hydrogen fluoride	7664-39-3	1,062 lbs	0 lbs	1,062 lbs
48	Acrolein	107-02-8	810 lbs	0 lbs	810 lbs
49	Vinylidene chloride	75-35-4	693 lbs	0 lbs	693 lbs
50	Hydrogen cyanide	74-90-8	596 lbs	0 lbs	596 lbs
51	Copper compounds	N100	0 lbs	586 lbs	586 lbs
52	Naphthalene	91-20-3	493 lbs	33 lbs	526 lbs
53	Aluminum (fume or dust)	7429-90-5	462 lbs	0 lbs	462 lbs
54	Ethylbenzene	100-41-4	391 lbs	32 lbs	423 lbs
55	Copper And Copper Compounds	N100	0 lbs	351 lbs	351 lbs
56	Chloromethane	74-87-3	326 lbs	0 lbs	326 lbs
57	Tetrachloroethylene	127-18-4	294 lbs	0 lbs	294 lbs
58	1,1,2,2-Tetrachloroethane	79-34-5	290 lbs	0 lbs	290 lbs
59	Manganese	7439-96-5	0 lbs	282 lbs	282 lbs
60	Nitric acid	7697-37-2	260 lbs	0 lbs	260 lbs
61	Pentachloroethane	76-01-7	245 lbs	0 lbs	245 lbs
62	Hexazinone	51235-04-2	0 lbs	212 lbs	212 lbs
63	Nickel	7440-02-0	0 lbs	152 lbs	152 lbs
64	Hexachlorocyclopentadiene	77-47-4	110 lbs	33 lbs	143 lbs
65	Nonylphenol	N530	100 lbs	13 lbs	113 lbs
66	Lead compounds	N420	34 lbs	54 lbs	88 lbs
67	n-Butyl alcohol	71-36-3	87 lbs	0 lbs	87 lbs
68	Trichloroethylene	79-01-6	84 lbs	0 lbs	84 lbs
69	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	0 lbs	81 lbs	81 lbs
70	Hexachloroethane	67-72-1	81 lbs	0 lbs	81 lbs
71	sec-Butyl alcohol	78-92-2	68 lbs	0 lbs	68 lbs
72	Dioxin and dioxin-like compounds	N150	0 lbs	60 lbs	61 lbs
73	Hexachlorobenzene	118-74-1	15 lbs	14 lbs	29 lbs
74	Chromium	7440-47-3	0 lbs	25 lbs	25 lbs
75	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	0 lbs	25 lbs	25 lbs
76	Lead And Lead Compounds	N420	11 lbs	10 lbs	22 lbs
77	Lead	7439-92-1	0 lbs	10 lbs	10 lbs
78	Chloroprene	126-99-8	10 lbs	0 lbs	10 lbs
79	Polycyclic aromatic compounds	N590	7 lbs	0 lbs	7 lbs
80	Bis(2-chloroethyl) ether	111-44-4	2 lbs	0 lbs	2 lbs
81	Mercury compounds	N458	2 lbs	0 lbs	2 lbs
82	Benzo[g,h,i]perylene	191-24-2	0 lbs	1 lbs	1 lbs
83	Methyl isocyanate	624-83-9	1 lbs	0 lbs	1 lbs
84	Mercury And Mercury Compounds	N458	1 lbs	0 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
Nitrate compounds (water dissociable; reportable only when in aqueous solution), Methanol, Ammonia, Ethylene, Propylene
View the full list of 61 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(61 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	607,579 lbs	607,579 lbs
2	Methanol	67-56-1	69,650 lbs	64,010 lbs	510,371 lbs
3	Ammonia	7664-41-7	49,914 lbs	503 lbs	437,538 lbs
4	Ethylene	74-85-1	370,230 lbs	0 lbs	370,230 lbs
5	Propylene	115-07-1	168,171 lbs	0 lbs	168,171 lbs
6	Vinyl acetate	108-05-4	88,722 lbs	410 lbs	118,205 lbs
7	Acetaldehyde	75-07-0	57,115 lbs	0 lbs	89,690 lbs
8	n-Hexane	110-54-3	61,453 lbs	0 lbs	61,453 lbs
9	Hydroquinone	123-31-9	0 lbs	0 lbs	28,819 lbs
10	1,2-Dichloroethane	107-06-2	12,354 lbs	15 lbs	12,369 lbs
11	Chlorine	7782-50-5	5,521 lbs	0 lbs	5,521 lbs
12	Vinyl chloride	75-01-4	4,880 lbs	2 lbs	4,881 lbs
13	Dicyclopentadiene	77-73-6	4,280 lbs	5 lbs	4,285 lbs
14	Formaldehyde	50-00-0	3,363 lbs	0 lbs	3,363 lbs
15	Certain glycol ethers	N230	3,026 lbs	0 lbs	3,026 lbs
16	1,3-Butadiene	106-99-0	2,958 lbs	0 lbs	2,958 lbs
17	Toluene	108-88-3	2,114 lbs	8 lbs	2,122 lbs
18	Diisocyanates	N120	1,843 lbs	0 lbs	1,843 lbs
19	Benzene	71-43-2	1,725 lbs	3 lbs	1,728 lbs
20	Cyclohexane	110-82-7	1,726 lbs	0 lbs	1,726 lbs
21	Methyl iodide	74-88-4	1,600 lbs	0 lbs	1,600 lbs
22	Maleic anhydride	108-31-6	1,569 lbs	0 lbs	1,569 lbs
23	Chloroethane	75-00-3	1,506 lbs	0 lbs	1,506 lbs
24	Boron trifluoride	7637-07-2	1,192 lbs	0 lbs	1,192 lbs
25	Xylene (mixed isomers)	1330-20-7	1,144 lbs	0 lbs	1,144 lbs
26	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	938 lbs	0 lbs	938 lbs
27	Chloroform	67-66-3	798 lbs	9 lbs	807 lbs
28	Zinc compounds	N982	426 lbs	233 lbs	659 lbs
29	Isoprene	78-79-5	578 lbs	0 lbs	578 lbs
30	Carbon tetrachloride	56-23-5	572 lbs	0 lbs	572 lbs
31	N,N-Dimethylformamide	68-12-2	570 lbs	0 lbs	570 lbs
32	Ethylbenzene	100-41-4	358 lbs	2 lbs	360 lbs
33	Naphthalene	91-20-3	270 lbs	18 lbs	288 lbs
34	Aluminum oxide (fibrous forms)	1344-28-1	250 lbs	0 lbs	250 lbs
35	1,1,2-Trichloroethane	79-00-5	227 lbs	0 lbs	227 lbs
36	Acrolein	107-02-8	209 lbs	0 lbs	209 lbs
37	Copper And Copper Compounds	N100	0 lbs	209 lbs	209 lbs
38	Ethylidene dichloride	75-34-3	156 lbs	0 lbs	156 lbs
39	Methyl methacrylate	80-62-6	142 lbs	0 lbs	142 lbs
40	Styrene	100-42-5	141 lbs	0 lbs	141 lbs
41	Ethylene glycol	107-21-1	121 lbs	0 lbs	121 lbs
42	1,2-Dichloroethylene	540-59-0	103 lbs	0 lbs	103 lbs
43	Vinylidene chloride	75-35-4	49 lbs	0 lbs	49 lbs
44	Aluminum (fume or dust)	7429-90-5	26 lbs	0 lbs	26 lbs
45	Tetrachloroethylene	127-18-4	24 lbs	0 lbs	24 lbs
46	1,1,2,2-Tetrachloroethane	79-34-5	24 lbs	0 lbs	24 lbs
47	Nitric acid	7697-37-2	20 lbs	0 lbs	20 lbs
48	Pentachloroethane	76-01-7	20 lbs	0 lbs	20 lbs
49	Hexachlorocyclopentadiene	77-47-4	10 lbs	5 lbs	15 lbs
50	Nonylphenol	N530	10 lbs	0 lbs	10 lbs
51	Trichloroethylene	79-01-6	8 lbs	0 lbs	8 lbs
52	n-Butyl alcohol	71-36-3	7 lbs	0 lbs	7 lbs
53	Dioxin and dioxin-like compounds	N150	0 lbs	7 lbs	7 lbs
54	Hexachloroethane	67-72-1	7 lbs	0 lbs	7 lbs
55	Lead	7439-92-1	0 lbs	5 lbs	5 lbs
56	sec-Butyl alcohol	78-92-2	5 lbs	0 lbs	5 lbs
57	Lead And Lead Compounds	N420	0 lbs	4 lbs	4 lbs
58	Polycyclic aromatic compounds	N590	3 lbs	0 lbs	3 lbs
59	Hexachlorobenzene	118-74-1	1 lbs	1 lbs	2 lbs
60	Mercury And Mercury Compounds	N458	1 lbs	0 lbs	1 lbs
61	Chloroprene	126-99-8	1 lbs	0 lbs	1 lbs