Complete Property Analysis

Environmental risk, tax analysis, and property details for 9311 Bay Area Blvd, Pasadena, TX 77507

HCAD #1394580010008

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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

9311 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)

$14,886,049

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

10.7th 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)

6.95 millionlbs

Extremely High

1065.4x more than typical Houston property

≈ 348 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

6.94 millionlbs

Extremely High

1438.5x 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)	6,951,234 lbs	6,936,721 lbs	14,513 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	561,081 lbs	559,017 lbs	2,064 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):
Ethylene, Methanol, tert-Butyl alcohol, Propylene, Ammonia
View the full list of 92 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(92 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Ethylene	74-85-1	882,991 lbs	0 lbs	882,991 lbs
2	Methanol	67-56-1	820,487 lbs	0 lbs	820,487 lbs
3	tert-Butyl alcohol	75-65-0	765,629 lbs	0 lbs	765,629 lbs
4	Propylene	115-07-1	623,157 lbs	0 lbs	623,157 lbs
5	Ammonia	7664-41-7	618,256 lbs	0 lbs	618,256 lbs
6	Vinyl acetate	108-05-4	519,583 lbs	0 lbs	519,583 lbs
7	n-Hexane	110-54-3	383,347 lbs	0 lbs	383,347 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	181,244 lbs	0 lbs	181,244 lbs
11	Ethylene oxide	75-21-8	156,896 lbs	0 lbs	156,896 lbs
12	1,3-Butadiene	106-99-0	149,538 lbs	0 lbs	149,538 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	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
16	Acetaldehyde	75-07-0	107,772 lbs	0 lbs	107,772 lbs
17	Acrylic acid	79-10-7	100,155 lbs	0 lbs	100,155 lbs
18	N,N-Dimethylformamide	68-12-2	86,962 lbs	0 lbs	86,962 lbs
19	Certain glycol ethers	N230	82,074 lbs	0 lbs	82,074 lbs
20	Styrene	100-42-5	72,248 lbs	0 lbs	72,379 lbs
21	n-Butyl alcohol	71-36-3	56,963 lbs	0 lbs	56,963 lbs
22	Molybdenum trioxide	1313-27-5	51,068 lbs	0 lbs	51,068 lbs
23	Chlorodifluoromethane (HCFC-22)	75-45-6	38,792 lbs	0 lbs	38,792 lbs
24	Ethyl acrylate	140-88-5	37,097 lbs	0 lbs	37,097 lbs
25	Isoprene	78-79-5	35,981 lbs	0 lbs	35,981 lbs
26	Methyl acrylate	96-33-3	23,024 lbs	0 lbs	23,024 lbs
27	Dicyclopentadiene	77-73-6	20,009 lbs	0 lbs	20,009 lbs
28	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	15,293 lbs	0 lbs	15,293 lbs
29	Chlorine	7782-50-5	15,132 lbs	0 lbs	15,132 lbs
30	Xylene (mixed isomers)	1330-20-7	14,816 lbs	0 lbs	14,816 lbs
31	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	45 lbs	14,147 lbs	14,192 lbs
32	Benzene	71-43-2	13,808 lbs	0 lbs	13,808 lbs
33	2-Methoxyethanol	109-86-4	11,669 lbs	0 lbs	11,669 lbs
34	Maleic anhydride	108-31-6	9,772 lbs	0 lbs	9,772 lbs
35	Chloroethane	75-00-3	9,070 lbs	0 lbs	9,070 lbs
36	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
37	Formaldehyde	50-00-0	7,196 lbs	0 lbs	7,196 lbs
38	Naphthalene	91-20-3	6,342 lbs	0 lbs	6,342 lbs
39	2-Ethoxyethanol	110-80-5	6,044 lbs	0 lbs	6,044 lbs
40	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
41	Dimethylamine	124-40-3	5,764 lbs	0 lbs	5,764 lbs
42	Cumene	98-82-8	5,367 lbs	0 lbs	5,367 lbs
43	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
44	1,2,4-Trimethylbenzene	95-63-6	4,752 lbs	0 lbs	4,752 lbs
45	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
46	Vanadium compounds	N770	3,122 lbs	0 lbs	3,137 lbs
47	Nonylphenol	N530	2,987 lbs	0 lbs	2,987 lbs
48	Formic acid	64-18-6	2,914 lbs	0 lbs	2,914 lbs
49	Acetonitrile	75-05-8	2,760 lbs	0 lbs	2,760 lbs
50	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
51	Zinc compounds	N982	2,352 lbs	233 lbs	2,585 lbs
52	Nickel And Nickel Compounds	N495	2,238 lbs	75 lbs	2,313 lbs
53	Acrolein	107-02-8	2,268 lbs	0 lbs	2,268 lbs
54	Hydroquinone	123-31-9	2,263 lbs	0 lbs	2,263 lbs
55	Nonylphenol Ethoxylates	N535	1,781 lbs	0 lbs	1,781 lbs
56	Vanadium (except when contained in an alloy)	7440-62-2	1,691 lbs	0 lbs	1,691 lbs
57	Nickel compounds	N495	1,389 lbs	21 lbs	1,410 lbs
58	Allyl chloride	107-05-1	1,277 lbs	0 lbs	1,277 lbs
59	Acrylonitrile	107-13-1	860 lbs	0 lbs	860 lbs
60	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
61	Ethylbenzene	100-41-4	806 lbs	0 lbs	806 lbs
62	Cobalt And Cobalt Compounds	N096	741 lbs	0 lbs	741 lbs
63	Nitric acid	7697-37-2	637 lbs	0 lbs	637 lbs
64	Chlorobenzene	108-90-7	583 lbs	0 lbs	583 lbs
65	Cobalt compounds	N096	454 lbs	0 lbs	454 lbs
66	Diethanolamine	111-42-2	414 lbs	0 lbs	414 lbs
67	Phosphorus (yellow or white)	12185-10-3	250 lbs	0 lbs	250 lbs
68	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
69	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
70	Butyraldehyde	123-72-8	186 lbs	0 lbs	186 lbs
71	4,4'-Isopropylidenediphenol	80-05-7	141 lbs	0 lbs	141 lbs
72	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	101 lbs	14 lbs	115 lbs
73	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
74	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	29 lbs	4 lbs	33 lbs
75	Sodium nitrite	7632-00-0	33 lbs	0 lbs	33 lbs
76	Phthalic anhydride	85-44-9	27 lbs	0 lbs	27 lbs
77	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
78	Cumene hydroperoxide	80-15-9	24 lbs	0 lbs	24 lbs
79	Copper compounds	N100	0 lbs	18 lbs	18 lbs
80	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
81	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
82	Allyl alcohol	107-18-6	10 lbs	0 lbs	10 lbs
83	Pyridine	110-86-1	10 lbs	0 lbs	10 lbs
84	4,4'-Diaminodiphenyl ether	101-80-4	6 lbs	0 lbs	6 lbs
85	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
86	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
87	Lead compounds	N420	2 lbs	0 lbs	2 lbs
88	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
89	Biphenyl	92-52-4	2 lbs	0 lbs	2 lbs
90	Nickel	7440-02-0	2 lbs	0 lbs	2 lbs
91	Lead And Lead Compounds	N420	1 lbs	0 lbs	1 lbs
92	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, Propylene, Methanol
View the full list of 63 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(63 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	73,214 lbs	0 lbs	73,214 lbs
3	Ammonia	7664-41-7	63,288 lbs	0 lbs	63,288 lbs
4	Propylene	115-07-1	40,510 lbs	0 lbs	40,510 lbs
5	Methanol	67-56-1	39,515 lbs	0 lbs	39,515 lbs
6	Toluene	108-88-3	26,673 lbs	0 lbs	26,673 lbs
7	n-Hexane	110-54-3	25,830 lbs	0 lbs	25,830 lbs
8	Propylene oxide	75-56-9	22,760 lbs	0 lbs	22,760 lbs
9	Vinyl acetate	108-05-4	19,007 lbs	0 lbs	19,007 lbs
10	Methyl methacrylate	80-62-6	18,415 lbs	0 lbs	18,415 lbs
11	Ethylene glycol	107-21-1	17,674 lbs	0 lbs	17,674 lbs
12	Acrylic acid	79-10-7	11,762 lbs	0 lbs	11,762 lbs
13	Ethylene oxide	75-21-8	11,260 lbs	0 lbs	11,260 lbs
14	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
15	Isoprene	78-79-5	10,184 lbs	0 lbs	10,184 lbs
16	N,N-Dimethylformamide	68-12-2	7,802 lbs	0 lbs	7,802 lbs
17	Butyl acrylate	141-32-2	6,270 lbs	0 lbs	6,270 lbs
18	Molybdenum trioxide	1313-27-5	4,957 lbs	0 lbs	4,957 lbs
19	1,3-Butadiene	106-99-0	4,435 lbs	0 lbs	4,435 lbs
20	Acetaldehyde	75-07-0	4,422 lbs	0 lbs	4,422 lbs
21	Certain glycol ethers	N230	3,953 lbs	0 lbs	3,953 lbs
22	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
23	Chloroethane	75-00-3	3,424 lbs	0 lbs	3,424 lbs
24	Methyl acrylate	96-33-3	2,867 lbs	0 lbs	2,867 lbs
25	Dicyclopentadiene	77-73-6	2,368 lbs	0 lbs	2,368 lbs
26	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	2,038 lbs	2,038 lbs
27	n-Butyl alcohol	71-36-3	1,893 lbs	0 lbs	1,893 lbs
28	Styrene	100-42-5	1,878 lbs	0 lbs	1,878 lbs
29	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	1,840 lbs	0 lbs	1,840 lbs
30	Hydroquinone	123-31-9	1,723 lbs	0 lbs	1,723 lbs
31	Maleic anhydride	108-31-6	1,552 lbs	0 lbs	1,552 lbs
32	Chlorine	7782-50-5	1,293 lbs	0 lbs	1,293 lbs
33	Acrolein	107-02-8	1,224 lbs	0 lbs	1,224 lbs
34	Benzene	71-43-2	1,049 lbs	0 lbs	1,049 lbs
35	2-Methoxyethanol	109-86-4	1,027 lbs	0 lbs	1,027 lbs
36	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
37	Formaldehyde	50-00-0	958 lbs	0 lbs	958 lbs
38	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
39	Nitric acid	7697-37-2	633 lbs	0 lbs	633 lbs
40	1,2,4-Trimethylbenzene	95-63-6	599 lbs	0 lbs	599 lbs
41	Xylene (mixed isomers)	1330-20-7	586 lbs	0 lbs	586 lbs
42	Nonylphenol	N530	552 lbs	0 lbs	552 lbs
43	Naphthalene	91-20-3	526 lbs	0 lbs	526 lbs
44	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
45	2-Ethoxyethanol	110-80-5	407 lbs	0 lbs	407 lbs
46	Nickel And Nickel Compounds	N495	341 lbs	26 lbs	367 lbs
47	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
48	Cumene	98-82-8	206 lbs	0 lbs	206 lbs
49	Vanadium (except when contained in an alloy)	7440-62-2	170 lbs	0 lbs	170 lbs
50	Allyl chloride	107-05-1	165 lbs	0 lbs	165 lbs
51	Nonylphenol Ethoxylates	N535	131 lbs	0 lbs	131 lbs
52	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
53	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 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	Ethylbenzene	100-41-4	94 lbs	0 lbs	94 lbs
57	Vanadium compounds	N770	67 lbs	0 lbs	67 lbs
58	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
59	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
60	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
61	Acrylonitrile	107-13-1	4 lbs	0 lbs	4 lbs
62	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
63	4,4'-Isopropylidenediphenol	80-05-7	1 lbs	0 lbs	1 lbs