Complete Property Analysis

Environmental risk, tax analysis, and property details for 9502 Bayport Blvd, Pasadena, TX 77507

HCAD #1005150000535

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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

9502 Bayport Blvd, Pasadena, TX 77507

Elevation

16.09 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)

25.93 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)

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

Property elevation currently above simulated flood level

Maintain flood insurance coverage as required in Special Flood Hazard 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

8.5th percentile

Property Pollution Ranking

Very High

Higher pollution than 92% of Houston homes

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

Industrial Pollution Nearby (10 Years)

11.34 millionlbs

Extremely High

1737.4x more than typical Houston property

≈ 567 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

11.3 millionlbs

Extremely High

2344.1x more than typical Houston property

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

Water Pollution (10 Years)

31 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)	11,335,088 lbs	11,303,815 lbs	31,274 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	945,937 lbs	942,593 lbs	3,344 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 92% 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):
Ethylene, n-Hexane, Methanol, Ammonia, tert-Butyl alcohol
View the full list of 105 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(105 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Ethylene	74-85-1	1,626,883 lbs	0 lbs	1,626,883 lbs
2	n-Hexane	110-54-3	1,421,238 lbs	0 lbs	1,421,238 lbs
3	Methanol	67-56-1	1,257,565 lbs	55 lbs	1,264,147 lbs
4	Ammonia	7664-41-7	1,119,713 lbs	123 lbs	1,119,856 lbs
5	tert-Butyl alcohol	75-65-0	772,489 lbs	0 lbs	772,489 lbs
6	Toluene	108-88-3	733,350 lbs	0 lbs	733,350 lbs
7	Propylene	115-07-1	659,958 lbs	0 lbs	659,958 lbs
8	Vinyl acetate	108-05-4	659,074 lbs	0 lbs	659,074 lbs
9	Nitric acid	7697-37-2	399,561 lbs	55 lbs	399,641 lbs
10	Propylene oxide	75-56-9	313,027 lbs	0 lbs	313,027 lbs
11	Ethylene glycol	107-21-1	181,793 lbs	0 lbs	181,793 lbs
12	1,3-Butadiene	106-99-0	162,212 lbs	0 lbs	162,212 lbs
13	Ethylene oxide	75-21-8	159,119 lbs	0 lbs	159,119 lbs
14	Acetaldehyde	75-07-0	122,615 lbs	0 lbs	122,615 lbs
15	Methyl methacrylate	80-62-6	120,028 lbs	0 lbs	120,300 lbs
16	Butyl acrylate	141-32-2	115,134 lbs	0 lbs	115,134 lbs
17	n-Butyl alcohol	71-36-3	111,440 lbs	0 lbs	111,440 lbs
18	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
19	Acrylic acid	79-10-7	103,687 lbs	0 lbs	103,687 lbs
20	Cyclohexane	110-82-7	103,498 lbs	0 lbs	103,498 lbs
21	Molybdenum trioxide	1313-27-5	88,723 lbs	3,227 lbs	91,965 lbs
22	Styrene	100-42-5	90,202 lbs	0 lbs	90,333 lbs
23	N,N-Dimethylformamide	68-12-2	86,962 lbs	0 lbs	86,962 lbs
24	Acrylonitrile	107-13-1	84,499 lbs	0 lbs	84,499 lbs
25	Certain glycol ethers	N230	82,077 lbs	0 lbs	82,077 lbs
26	Isoprene	78-79-5	51,809 lbs	0 lbs	51,809 lbs
27	Hydroquinone	123-31-9	44,758 lbs	0 lbs	44,758 lbs
28	Chlorodifluoromethane (HCFC-22)	75-45-6	38,792 lbs	0 lbs	38,792 lbs
29	Xylene (mixed isomers)	1330-20-7	37,537 lbs	0 lbs	37,537 lbs
30	Ethyl acrylate	140-88-5	37,097 lbs	0 lbs	37,097 lbs
31	Cumene	98-82-8	36,540 lbs	0 lbs	36,540 lbs
32	Methyl isobutyl ketone	108-10-1	36,313 lbs	0 lbs	36,313 lbs
33	Hydrogen sulfide	7783-06-4	31,678 lbs	0 lbs	31,678 lbs
34	Phenol	108-95-2	30,497 lbs	0 lbs	30,497 lbs
35	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	75 lbs	24,402 lbs	24,492 lbs
36	Benzene	71-43-2	24,344 lbs	0 lbs	24,344 lbs
37	Methyl acrylate	96-33-3	23,024 lbs	0 lbs	23,024 lbs
38	Dicyclopentadiene	77-73-6	21,187 lbs	0 lbs	21,187 lbs
39	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
40	Chlorine	7782-50-5	17,378 lbs	0 lbs	17,378 lbs
41	Nickel compounds	N495	13,184 lbs	1,926 lbs	15,124 lbs
42	2-Methoxyethanol	109-86-4	11,669 lbs	0 lbs	11,669 lbs
43	Maleic anhydride	108-31-6	11,349 lbs	0 lbs	11,349 lbs
44	Formaldehyde	50-00-0	9,934 lbs	102 lbs	10,036 lbs
45	Dimethylamine	124-40-3	9,518 lbs	0 lbs	9,518 lbs
46	Chloroethane	75-00-3	9,070 lbs	0 lbs	9,070 lbs
47	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
48	Nickel And Nickel Compounds	N495	7,116 lbs	137 lbs	7,253 lbs
49	Cobalt compounds	N096	6,325 lbs	886 lbs	7,226 lbs
50	Naphthalene	91-20-3	6,438 lbs	0 lbs	6,438 lbs
51	Ethylbenzene	100-41-4	6,113 lbs	0 lbs	6,113 lbs
52	2-Ethoxyethanol	110-80-5	6,044 lbs	0 lbs	6,044 lbs
53	Diphenylamine	122-39-4	5,938 lbs	0 lbs	5,938 lbs
54	1,2,4-Trimethylbenzene	95-63-6	5,817 lbs	0 lbs	5,817 lbs
55	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
56	Cobalt And Cobalt Compounds	N096	5,292 lbs	42 lbs	5,334 lbs
57	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
58	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
59	Allyl alcohol	107-18-6	3,399 lbs	0 lbs	3,399 lbs
60	Vanadium compounds	N770	3,122 lbs	0 lbs	3,137 lbs
61	Nonylphenol	N530	2,987 lbs	0 lbs	2,987 lbs
62	Formic acid	64-18-6	2,914 lbs	0 lbs	2,914 lbs
63	Acetonitrile	75-05-8	2,760 lbs	0 lbs	2,760 lbs
64	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
65	Zinc compounds	N982	2,352 lbs	233 lbs	2,585 lbs
66	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
67	Acrolein	107-02-8	2,268 lbs	0 lbs	2,268 lbs
68	Nonylphenol Ethoxylates	N535	1,781 lbs	0 lbs	1,781 lbs
69	Vanadium (except when contained in an alloy)	7440-62-2	1,691 lbs	0 lbs	1,691 lbs
70	Allyl chloride	107-05-1	1,277 lbs	0 lbs	1,277 lbs
71	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
72	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
73	Chlorobenzene	108-90-7	583 lbs	0 lbs	583 lbs
74	Benzoyl chloride	98-88-4	469 lbs	0 lbs	469 lbs
75	Hydrazine	302-01-2	437 lbs	0 lbs	437 lbs
76	Diethanolamine	111-42-2	414 lbs	0 lbs	414 lbs
77	Phosphorus (yellow or white)	12185-10-3	250 lbs	0 lbs	250 lbs
78	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
79	Lead And Lead Compounds	N420	213 lbs	10 lbs	222 lbs
80	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
81	Butyraldehyde	123-72-8	186 lbs	0 lbs	186 lbs
82	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	N040	145 lbs	30 lbs	175 lbs
83	Copper compounds	N100	132 lbs	24 lbs	156 lbs
84	Lead compounds	N420	140 lbs	4 lbs	144 lbs
85	4,4'-Isopropylidenediphenol	80-05-7	141 lbs	0 lbs	141 lbs
86	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	101 lbs	14 lbs	115 lbs
87	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
88	Cyanide compounds	N106	5 lbs	0 lbs	58 lbs
89	Chloromethane	74-87-3	51 lbs	0 lbs	51 lbs
90	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
91	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	29 lbs	4 lbs	33 lbs
92	Sodium nitrite	7632-00-0	33 lbs	0 lbs	33 lbs
93	Bis(2-chloroethyl) ether	111-44-4	29 lbs	0 lbs	29 lbs
94	Cumene hydroperoxide	80-15-9	26 lbs	0 lbs	26 lbs
95	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
96	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
97	Pyridine	110-86-1	10 lbs	0 lbs	10 lbs
98	4,4'-Diaminodiphenyl ether	101-80-4	6 lbs	0 lbs	6 lbs
99	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
100	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
101	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
102	Biphenyl	92-52-4	2 lbs	0 lbs	2 lbs
103	Nickel	7440-02-0	2 lbs	0 lbs	2 lbs
104	N-Methyl-2-pyrrolidone	872-50-4	1 lbs	0 lbs	1 lbs
105	Boron trifluoride	7637-07-2	1 lbs	0 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
Ethylene, n-Hexane, Ammonia, tert-Butyl alcohol, Methanol
View the full list of 76 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(76 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Ethylene	74-85-1	169,248 lbs	0 lbs	169,248 lbs
2	n-Hexane	110-54-3	143,498 lbs	0 lbs	143,498 lbs
3	Ammonia	7664-41-7	116,443 lbs	5 lbs	116,448 lbs
4	tert-Butyl alcohol	75-65-0	102,935 lbs	0 lbs	102,935 lbs
5	Methanol	67-56-1	67,661 lbs	5 lbs	67,666 lbs
6	Propylene	115-07-1	50,545 lbs	0 lbs	50,545 lbs
7	Toluene	108-88-3	40,931 lbs	0 lbs	40,931 lbs
8	Vinyl acetate	108-05-4	33,123 lbs	0 lbs	33,123 lbs
9	Propylene oxide	75-56-9	23,191 lbs	0 lbs	23,191 lbs
10	Methyl methacrylate	80-62-6	18,802 lbs	0 lbs	18,802 lbs
11	Ethylene glycol	107-21-1	17,689 lbs	0 lbs	17,689 lbs
12	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
13	Acrylic acid	79-10-7	11,948 lbs	0 lbs	11,948 lbs
14	Ethylene oxide	75-21-8	11,744 lbs	0 lbs	11,744 lbs
15	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
16	Nitric acid	7697-37-2	10,340 lbs	5 lbs	10,345 lbs
17	Molybdenum trioxide	1313-27-5	7,727 lbs	482 lbs	8,209 lbs
18	Cyclohexane	110-82-7	8,125 lbs	0 lbs	8,125 lbs
19	N,N-Dimethylformamide	68-12-2	7,802 lbs	0 lbs	7,802 lbs
20	Hydroquinone	123-31-9	6,585 lbs	0 lbs	6,585 lbs
21	Butyl acrylate	141-32-2	6,270 lbs	0 lbs	6,270 lbs
22	1,3-Butadiene	106-99-0	5,622 lbs	0 lbs	5,622 lbs
23	Acetaldehyde	75-07-0	4,918 lbs	0 lbs	4,918 lbs
24	Methyl isobutyl ketone	108-10-1	3,997 lbs	0 lbs	3,997 lbs
25	Certain glycol ethers	N230	3,953 lbs	0 lbs	3,953 lbs
26	Hydrogen sulfide	7783-06-4	3,596 lbs	0 lbs	3,596 lbs
27	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
28	Chloroethane	75-00-3	3,424 lbs	0 lbs	3,424 lbs
29	Methyl acrylate	96-33-3	2,867 lbs	0 lbs	2,867 lbs
30	n-Butyl alcohol	71-36-3	2,835 lbs	0 lbs	2,835 lbs
31	Cumene	98-82-8	2,822 lbs	0 lbs	2,822 lbs
32	Styrene	100-42-5	2,675 lbs	0 lbs	2,675 lbs
33	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	2,660 lbs	2,660 lbs
34	Dicyclopentadiene	77-73-6	2,465 lbs	0 lbs	2,465 lbs
35	Benzene	71-43-2	2,139 lbs	0 lbs	2,139 lbs
36	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
37	Phenol	108-95-2	1,875 lbs	0 lbs	1,875 lbs
38	Maleic anhydride	108-31-6	1,738 lbs	0 lbs	1,738 lbs
39	Xylene (mixed isomers)	1330-20-7	1,309 lbs	0 lbs	1,309 lbs
40	Chlorine	7782-50-5	1,293 lbs	0 lbs	1,293 lbs
41	Acrolein	107-02-8	1,224 lbs	0 lbs	1,224 lbs
42	Nickel compounds	N495	1,017 lbs	108 lbs	1,125 lbs
43	Formaldehyde	50-00-0	1,111 lbs	0 lbs	1,111 lbs
44	2-Methoxyethanol	109-86-4	1,027 lbs	0 lbs	1,027 lbs
45	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
46	1,2,4-Trimethylbenzene	95-63-6	698 lbs	0 lbs	698 lbs
47	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
48	Nonylphenol	N530	552 lbs	0 lbs	552 lbs
49	Naphthalene	91-20-3	538 lbs	0 lbs	538 lbs
50	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
51	Cobalt compounds	N096	455 lbs	36 lbs	491 lbs
52	Nickel And Nickel Compounds	N495	423 lbs	34 lbs	457 lbs
53	2-Ethoxyethanol	110-80-5	407 lbs	0 lbs	407 lbs
54	Ethylbenzene	100-41-4	369 lbs	0 lbs	369 lbs
55	Dimethylamine	124-40-3	341 lbs	0 lbs	341 lbs
56	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
57	Cobalt And Cobalt Compounds	N096	182 lbs	8 lbs	190 lbs
58	Vanadium (except when contained in an alloy)	7440-62-2	170 lbs	0 lbs	170 lbs
59	Allyl chloride	107-05-1	165 lbs	0 lbs	165 lbs
60	Nonylphenol Ethoxylates	N535	131 lbs	0 lbs	131 lbs
61	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
62	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
63	Diphenylamine	122-39-4	105 lbs	0 lbs	105 lbs
64	Chlorobenzene	108-90-7	100 lbs	0 lbs	100 lbs
65	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
66	Vanadium compounds	N770	67 lbs	0 lbs	67 lbs
67	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
68	Hydrazine	302-01-2	39 lbs	0 lbs	39 lbs
69	Benzoyl chloride	98-88-4	33 lbs	0 lbs	33 lbs
70	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
71	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
72	Lead And Lead Compounds	N420	16 lbs	1 lbs	17 lbs
73	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
74	Acrylonitrile	107-13-1	4 lbs	0 lbs	4 lbs
75	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
76	4,4'-Isopropylidenediphenol	80-05-7	1 lbs	0 lbs	1 lbs