Complete Property Analysis

Environmental risk, tax analysis, and property details for 9801 Bay Area Blvd, Pasadena, TX 77507

HCAD #1005150000481

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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

9801 Bay Area Blvd, Pasadena, TX 77507

Elevation

10.88 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)

20.72 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

10.2th percentile

Property Pollution Ranking

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)

7.72 millionlbs

Extremely High

1182.7x more than typical Houston property

≈ 386 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

7.7 millionlbs

Extremely High

1597.0x 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)	7,716,309 lbs	7,701,372 lbs	14,938 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	623,139 lbs	621,070 lbs	2,069 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):
Ethylene, Methanol, tert-Butyl alcohol, Vinyl acetate, Propylene
View the full list of 93 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(93 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Ethylene	74-85-1	1,206,738 lbs	0 lbs	1,206,738 lbs
2	Methanol	67-56-1	998,032 lbs	55 lbs	998,087 lbs
3	tert-Butyl alcohol	75-65-0	765,629 lbs	0 lbs	765,629 lbs
4	Vinyl acetate	108-05-4	636,768 lbs	0 lbs	636,768 lbs
5	Propylene	115-07-1	623,157 lbs	0 lbs	623,157 lbs
6	Ammonia	7664-41-7	618,256 lbs	0 lbs	618,256 lbs
7	n-Hexane	110-54-3	385,082 lbs	0 lbs	385,082 lbs
8	Toluene	108-88-3	302,452 lbs	0 lbs	302,452 lbs
9	Propylene oxide	75-56-9	296,144 lbs	0 lbs	296,144 lbs
10	Ethylene glycol	107-21-1	181,716 lbs	0 lbs	181,716 lbs
11	1,3-Butadiene	106-99-0	162,212 lbs	0 lbs	162,212 lbs
12	Ethylene oxide	75-21-8	156,896 lbs	0 lbs	156,896 lbs
13	Methyl methacrylate	80-62-6	116,976 lbs	0 lbs	117,248 lbs
14	Butyl acrylate	141-32-2	115,129 lbs	0 lbs	115,129 lbs
15	Acetaldehyde	75-07-0	110,359 lbs	0 lbs	110,359 lbs
16	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
17	Cyclohexane	110-82-7	102,600 lbs	0 lbs	102,600 lbs
18	Acrylic acid	79-10-7	100,155 lbs	0 lbs	100,155 lbs
19	N,N-Dimethylformamide	68-12-2	86,962 lbs	0 lbs	86,962 lbs
20	Certain glycol ethers	N230	82,074 lbs	0 lbs	82,074 lbs
21	Styrene	100-42-5	76,264 lbs	0 lbs	76,395 lbs
22	n-Butyl alcohol	71-36-3	56,963 lbs	0 lbs	56,963 lbs
23	Isoprene	78-79-5	51,809 lbs	0 lbs	51,809 lbs
24	Molybdenum trioxide	1313-27-5	51,068 lbs	0 lbs	51,068 lbs
25	Chlorodifluoromethane (HCFC-22)	75-45-6	38,792 lbs	0 lbs	38,792 lbs
26	Ethyl acrylate	140-88-5	37,097 lbs	0 lbs	37,097 lbs
27	Methyl acrylate	96-33-3	23,024 lbs	0 lbs	23,024 lbs
28	Dicyclopentadiene	77-73-6	20,009 lbs	0 lbs	20,009 lbs
29	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
30	Chlorine	7782-50-5	17,378 lbs	0 lbs	17,378 lbs
31	Xylene (mixed isomers)	1330-20-7	14,816 lbs	0 lbs	14,816 lbs
32	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	45 lbs	14,517 lbs	14,562 lbs
33	Benzene	71-43-2	13,808 lbs	0 lbs	13,808 lbs
34	2-Methoxyethanol	109-86-4	11,669 lbs	0 lbs	11,669 lbs
35	Maleic anhydride	108-31-6	9,772 lbs	0 lbs	9,772 lbs
36	Chloroethane	75-00-3	9,070 lbs	0 lbs	9,070 lbs
37	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
38	Formaldehyde	50-00-0	7,196 lbs	0 lbs	7,196 lbs
39	Naphthalene	91-20-3	6,342 lbs	0 lbs	6,342 lbs
40	2-Ethoxyethanol	110-80-5	6,044 lbs	0 lbs	6,044 lbs
41	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
42	Dimethylamine	124-40-3	5,764 lbs	0 lbs	5,764 lbs
43	Cumene	98-82-8	5,367 lbs	0 lbs	5,367 lbs
44	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
45	1,2,4-Trimethylbenzene	95-63-6	4,752 lbs	0 lbs	4,752 lbs
46	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
47	Vanadium compounds	N770	3,122 lbs	0 lbs	3,137 lbs
48	Nonylphenol	N530	2,987 lbs	0 lbs	2,987 lbs
49	Formic acid	64-18-6	2,914 lbs	0 lbs	2,914 lbs
50	Acetonitrile	75-05-8	2,760 lbs	0 lbs	2,760 lbs
51	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
52	Zinc compounds	N982	2,352 lbs	233 lbs	2,585 lbs
53	Nickel And Nickel Compounds	N495	2,238 lbs	75 lbs	2,313 lbs
54	Acrolein	107-02-8	2,268 lbs	0 lbs	2,268 lbs
55	Hydroquinone	123-31-9	2,263 lbs	0 lbs	2,263 lbs
56	Nitric acid	7697-37-2	2,042 lbs	0 lbs	2,042 lbs
57	Nonylphenol Ethoxylates	N535	1,781 lbs	0 lbs	1,781 lbs
58	Vanadium (except when contained in an alloy)	7440-62-2	1,691 lbs	0 lbs	1,691 lbs
59	Nickel compounds	N495	1,389 lbs	21 lbs	1,410 lbs
60	Allyl chloride	107-05-1	1,277 lbs	0 lbs	1,277 lbs
61	Acrylonitrile	107-13-1	860 lbs	0 lbs	860 lbs
62	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
63	Ethylbenzene	100-41-4	806 lbs	0 lbs	806 lbs
64	Cobalt And Cobalt Compounds	N096	741 lbs	0 lbs	741 lbs
65	Chlorobenzene	108-90-7	583 lbs	0 lbs	583 lbs
66	Cobalt compounds	N096	454 lbs	0 lbs	454 lbs
67	Diethanolamine	111-42-2	414 lbs	0 lbs	414 lbs
68	Phosphorus (yellow or white)	12185-10-3	250 lbs	0 lbs	250 lbs
69	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
70	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
71	Butyraldehyde	123-72-8	186 lbs	0 lbs	186 lbs
72	4,4'-Isopropylidenediphenol	80-05-7	141 lbs	0 lbs	141 lbs
73	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	101 lbs	14 lbs	115 lbs
74	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
75	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	29 lbs	4 lbs	33 lbs
76	Sodium nitrite	7632-00-0	33 lbs	0 lbs	33 lbs
77	Phthalic anhydride	85-44-9	27 lbs	0 lbs	27 lbs
78	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
79	Cumene hydroperoxide	80-15-9	24 lbs	0 lbs	24 lbs
80	Copper compounds	N100	0 lbs	18 lbs	18 lbs
81	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
82	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
83	Allyl alcohol	107-18-6	10 lbs	0 lbs	10 lbs
84	Pyridine	110-86-1	10 lbs	0 lbs	10 lbs
85	4,4'-Diaminodiphenyl ether	101-80-4	6 lbs	0 lbs	6 lbs
86	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
87	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
88	Lead compounds	N420	2 lbs	0 lbs	2 lbs
89	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
90	Biphenyl	92-52-4	2 lbs	0 lbs	2 lbs
91	Nickel	7440-02-0	2 lbs	0 lbs	2 lbs
92	Lead And Lead Compounds	N420	1 lbs	0 lbs	1 lbs
93	N-Methyl-2-pyrrolidone	872-50-4	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 64 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(64 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	tert-Butyl alcohol	75-65-0	102,442 lbs	0 lbs	102,442 lbs
2	Ethylene	74-85-1	97,248 lbs	0 lbs	97,248 lbs
3	Ammonia	7664-41-7	63,288 lbs	0 lbs	63,288 lbs
4	Methanol	67-56-1	53,686 lbs	5 lbs	53,691 lbs
5	Propylene	115-07-1	40,510 lbs	0 lbs	40,510 lbs
6	Vinyl acetate	108-05-4	30,705 lbs	0 lbs	30,705 lbs
7	Toluene	108-88-3	26,673 lbs	0 lbs	26,673 lbs
8	n-Hexane	110-54-3	25,990 lbs	0 lbs	25,990 lbs
9	Propylene oxide	75-56-9	22,760 lbs	0 lbs	22,760 lbs
10	Methyl methacrylate	80-62-6	18,415 lbs	0 lbs	18,415 lbs
11	Ethylene glycol	107-21-1	17,686 lbs	0 lbs	17,686 lbs
12	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
13	Acrylic acid	79-10-7	11,762 lbs	0 lbs	11,762 lbs
14	Ethylene oxide	75-21-8	11,260 lbs	0 lbs	11,260 lbs
15	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
16	Cyclohexane	110-82-7	8,060 lbs	0 lbs	8,060 lbs
17	N,N-Dimethylformamide	68-12-2	7,802 lbs	0 lbs	7,802 lbs
18	Butyl acrylate	141-32-2	6,270 lbs	0 lbs	6,270 lbs
19	1,3-Butadiene	106-99-0	5,622 lbs	0 lbs	5,622 lbs
20	Molybdenum trioxide	1313-27-5	4,957 lbs	0 lbs	4,957 lbs
21	Acetaldehyde	75-07-0	4,424 lbs	0 lbs	4,424 lbs
22	Certain glycol ethers	N230	3,953 lbs	0 lbs	3,953 lbs
23	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
24	Chloroethane	75-00-3	3,424 lbs	0 lbs	3,424 lbs
25	Methyl acrylate	96-33-3	2,867 lbs	0 lbs	2,867 lbs
26	Dicyclopentadiene	77-73-6	2,368 lbs	0 lbs	2,368 lbs
27	Styrene	100-42-5	2,146 lbs	0 lbs	2,146 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	n-Butyl alcohol	71-36-3	1,893 lbs	0 lbs	1,893 lbs
31	Hydroquinone	123-31-9	1,723 lbs	0 lbs	1,723 lbs
32	Maleic anhydride	108-31-6	1,552 lbs	0 lbs	1,552 lbs
33	Chlorine	7782-50-5	1,293 lbs	0 lbs	1,293 lbs
34	Acrolein	107-02-8	1,224 lbs	0 lbs	1,224 lbs
35	Benzene	71-43-2	1,049 lbs	0 lbs	1,049 lbs
36	2-Methoxyethanol	109-86-4	1,027 lbs	0 lbs	1,027 lbs
37	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
38	Formaldehyde	50-00-0	958 lbs	0 lbs	958 lbs
39	Nitric acid	7697-37-2	850 lbs	0 lbs	850 lbs
40	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
41	1,2,4-Trimethylbenzene	95-63-6	599 lbs	0 lbs	599 lbs
42	Xylene (mixed isomers)	1330-20-7	586 lbs	0 lbs	586 lbs
43	Nonylphenol	N530	552 lbs	0 lbs	552 lbs
44	Naphthalene	91-20-3	526 lbs	0 lbs	526 lbs
45	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
46	2-Ethoxyethanol	110-80-5	407 lbs	0 lbs	407 lbs
47	Nickel And Nickel Compounds	N495	341 lbs	26 lbs	367 lbs
48	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
49	Cumene	98-82-8	206 lbs	0 lbs	206 lbs
50	Vanadium (except when contained in an alloy)	7440-62-2	170 lbs	0 lbs	170 lbs
51	Allyl chloride	107-05-1	165 lbs	0 lbs	165 lbs
52	Nonylphenol Ethoxylates	N535	131 lbs	0 lbs	131 lbs
53	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
54	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
55	Chlorobenzene	108-90-7	100 lbs	0 lbs	100 lbs
56	Cobalt And Cobalt Compounds	N096	100 lbs	0 lbs	100 lbs
57	Ethylbenzene	100-41-4	94 lbs	0 lbs	94 lbs
58	Vanadium compounds	N770	67 lbs	0 lbs	67 lbs
59	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
60	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
61	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
62	Acrylonitrile	107-13-1	4 lbs	0 lbs	4 lbs
63	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
64	4,4'-Isopropylidenediphenol	80-05-7	1 lbs	0 lbs	1 lbs