Complete Property Analysis

Environmental risk, tax analysis, and property details for 11777 Bay Area Blvd, Pasadena, TX 77507

HCAD #1005150000470

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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

11777 Bay Area Blvd, Pasadena, TX 77507

Elevation

12.95 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)

22.80 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

8.9th percentile

Property Pollution Ranking

Very High

Higher pollution than 91% of Houston homes

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

Industrial Pollution Nearby (10 Years)

10.18 millionlbs

Extremely High

1560.5x more than typical Houston property

≈ 509 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

10.15 millionlbs

Extremely High

2104.8x 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)	10,181,394 lbs	10,150,238 lbs	31,157 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	872,828 lbs	869,484 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 91% 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, Ethylene, n-Hexane, Ammonia, tert-Butyl alcohol
View the full list of 100 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(100 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	1,301,001 lbs	0 lbs	1,301,001 lbs
3	n-Hexane	110-54-3	1,277,126 lbs	0 lbs	1,277,126 lbs
4	Ammonia	7664-41-7	1,101,652 lbs	55 lbs	1,101,727 lbs
5	tert-Butyl alcohol	75-65-0	757,361 lbs	0 lbs	757,361 lbs
6	Toluene	108-88-3	725,641 lbs	0 lbs	725,641 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	399,509 lbs	55 lbs	399,589 lbs
10	Propylene oxide	75-56-9	310,422 lbs	0 lbs	310,422 lbs
11	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
12	Acrylic acid	79-10-7	103,687 lbs	0 lbs	103,687 lbs
13	1,3-Butadiene	106-99-0	103,203 lbs	0 lbs	103,203 lbs
14	Cyclohexane	110-82-7	102,641 lbs	0 lbs	102,641 lbs
15	Acetaldehyde	75-07-0	97,287 lbs	0 lbs	97,287 lbs
16	Molybdenum trioxide	1313-27-5	88,723 lbs	3,227 lbs	91,965 lbs
17	n-Butyl alcohol	71-36-3	91,430 lbs	0 lbs	91,430 lbs
18	Acrylonitrile	107-13-1	83,724 lbs	0 lbs	83,724 lbs
19	Ethylene glycol	107-21-1	76,952 lbs	0 lbs	76,952 lbs
20	Methyl methacrylate	80-62-6	62,766 lbs	0 lbs	63,038 lbs
21	Ethylene oxide	75-21-8	60,191 lbs	0 lbs	60,191 lbs
22	Isoprene	78-79-5	51,809 lbs	0 lbs	51,809 lbs
23	Hydroquinone	123-31-9	44,758 lbs	0 lbs	44,758 lbs
24	Butyl acrylate	141-32-2	42,511 lbs	0 lbs	42,511 lbs
25	Chlorodifluoromethane (HCFC-22)	75-45-6	38,792 lbs	0 lbs	38,792 lbs
26	Ethyl acrylate	140-88-5	37,048 lbs	0 lbs	37,048 lbs
27	Certain glycol ethers	N230	36,974 lbs	0 lbs	36,974 lbs
28	Xylene (mixed isomers)	1330-20-7	36,663 lbs	0 lbs	36,663 lbs
29	Methyl isobutyl ketone	108-10-1	36,313 lbs	0 lbs	36,313 lbs
30	Hydrogen sulfide	7783-06-4	31,678 lbs	0 lbs	31,678 lbs
31	Cumene	98-82-8	31,489 lbs	0 lbs	31,489 lbs
32	Phenol	108-95-2	30,497 lbs	0 lbs	30,497 lbs
33	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	75 lbs	24,402 lbs	24,492 lbs
34	Benzene	71-43-2	24,344 lbs	0 lbs	24,344 lbs
35	Methyl acrylate	96-33-3	23,024 lbs	0 lbs	23,024 lbs
36	Dicyclopentadiene	77-73-6	21,187 lbs	0 lbs	21,187 lbs
37	Styrene	100-42-5	20,372 lbs	0 lbs	20,503 lbs
38	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
39	Nickel compounds	N495	13,184 lbs	1,926 lbs	15,124 lbs
40	Maleic anhydride	108-31-6	10,737 lbs	0 lbs	10,737 lbs
41	Formaldehyde	50-00-0	9,888 lbs	0 lbs	9,888 lbs
42	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
43	Dimethylamine	124-40-3	7,773 lbs	0 lbs	7,773 lbs
44	Nickel And Nickel Compounds	N495	7,116 lbs	137 lbs	7,253 lbs
45	Cobalt compounds	N096	6,325 lbs	886 lbs	7,226 lbs
46	Naphthalene	91-20-3	6,405 lbs	0 lbs	6,405 lbs
47	Ethylbenzene	100-41-4	6,019 lbs	0 lbs	6,019 lbs
48	Diphenylamine	122-39-4	5,851 lbs	0 lbs	5,851 lbs
49	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
50	Cobalt And Cobalt Compounds	N096	5,292 lbs	42 lbs	5,334 lbs
51	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
52	1,2,4-Trimethylbenzene	95-63-6	4,846 lbs	0 lbs	4,846 lbs
53	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
54	Allyl alcohol	107-18-6	3,399 lbs	0 lbs	3,399 lbs
55	Vanadium compounds	N770	3,122 lbs	0 lbs	3,137 lbs
56	Formic acid	64-18-6	2,914 lbs	0 lbs	2,914 lbs
57	Acetonitrile	75-05-8	2,760 lbs	0 lbs	2,760 lbs
58	Zinc compounds	N982	2,387 lbs	266 lbs	2,653 lbs
59	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
60	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
61	Acrolein	107-02-8	2,268 lbs	0 lbs	2,268 lbs
62	Chlorine	7782-50-5	2,246 lbs	0 lbs	2,246 lbs
63	Nonylphenol	N530	1,974 lbs	0 lbs	1,974 lbs
64	Vanadium (except when contained in an alloy)	7440-62-2	1,691 lbs	0 lbs	1,691 lbs
65	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
66	Nonylphenol Ethoxylates	N535	773 lbs	0 lbs	773 lbs
67	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
68	Chlorobenzene	108-90-7	583 lbs	0 lbs	583 lbs
69	N,N-Dimethylformamide	68-12-2	511 lbs	0 lbs	511 lbs
70	Benzoyl chloride	98-88-4	469 lbs	0 lbs	469 lbs
71	Hydrazine	302-01-2	437 lbs	0 lbs	437 lbs
72	Diethanolamine	111-42-2	414 lbs	0 lbs	414 lbs
73	Phosphorus (yellow or white)	12185-10-3	250 lbs	0 lbs	250 lbs
74	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
75	Lead And Lead Compounds	N420	213 lbs	10 lbs	222 lbs
76	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
77	Butyraldehyde	123-72-8	186 lbs	0 lbs	186 lbs
78	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	N040	145 lbs	30 lbs	175 lbs
79	Copper compounds	N100	132 lbs	24 lbs	156 lbs
80	Lead compounds	N420	140 lbs	4 lbs	144 lbs
81	4,4'-Isopropylidenediphenol	80-05-7	141 lbs	0 lbs	141 lbs
82	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	101 lbs	14 lbs	115 lbs
83	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
84	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
85	Antimony compounds	N010	20 lbs	15 lbs	35 lbs
86	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	29 lbs	4 lbs	33 lbs
87	Sodium nitrite	7632-00-0	33 lbs	0 lbs	33 lbs
88	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
89	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
90	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
91	Pyridine	110-86-1	10 lbs	0 lbs	10 lbs
92	Antimony And Antimony Compounds	N010	5 lbs	5 lbs	10 lbs
93	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
94	Cumene hydroperoxide	80-15-9	2 lbs	0 lbs	2 lbs
95	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
96	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
97	Biphenyl	92-52-4	2 lbs	0 lbs	2 lbs
98	Nickel	7440-02-0	2 lbs	0 lbs	2 lbs
99	N-Methyl-2-pyrrolidone	872-50-4	1 lbs	0 lbs	1 lbs
100	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 70 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(70 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Ethylene	74-85-1	150,272 lbs	0 lbs	150,272 lbs
2	n-Hexane	110-54-3	139,020 lbs	0 lbs	139,020 lbs
3	Ammonia	7664-41-7	116,441 lbs	5 lbs	116,446 lbs
4	tert-Butyl alcohol	75-65-0	102,164 lbs	0 lbs	102,164 lbs
5	Methanol	67-56-1	61,973 lbs	5 lbs	61,978 lbs
6	Propylene	115-07-1	50,545 lbs	0 lbs	50,545 lbs
7	Toluene	108-88-3	40,637 lbs	0 lbs	40,637 lbs
8	Vinyl acetate	108-05-4	33,123 lbs	0 lbs	33,123 lbs
9	Propylene oxide	75-56-9	23,121 lbs	0 lbs	23,121 lbs
10	Ethylene glycol	107-21-1	14,422 lbs	0 lbs	14,422 lbs
11	Methyl methacrylate	80-62-6	12,693 lbs	0 lbs	12,693 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	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
15	Nitric acid	7697-37-2	10,340 lbs	5 lbs	10,345 lbs
16	Molybdenum trioxide	1313-27-5	7,727 lbs	482 lbs	8,209 lbs
17	Cyclohexane	110-82-7	8,101 lbs	0 lbs	8,101 lbs
18	Hydroquinone	123-31-9	6,585 lbs	0 lbs	6,585 lbs
19	Acetaldehyde	75-07-0	4,543 lbs	0 lbs	4,543 lbs
20	1,3-Butadiene	106-99-0	4,450 lbs	0 lbs	4,450 lbs
21	Ethylene oxide	75-21-8	4,138 lbs	0 lbs	4,138 lbs
22	Methyl isobutyl ketone	108-10-1	3,997 lbs	0 lbs	3,997 lbs
23	Hydrogen sulfide	7783-06-4	3,596 lbs	0 lbs	3,596 lbs
24	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
25	Methyl acrylate	96-33-3	2,867 lbs	0 lbs	2,867 lbs
26	Butyl acrylate	141-32-2	2,678 lbs	0 lbs	2,678 lbs
27	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	2,660 lbs	2,660 lbs
28	Cumene	98-82-8	2,611 lbs	0 lbs	2,611 lbs
29	Dicyclopentadiene	77-73-6	2,465 lbs	0 lbs	2,465 lbs
30	Benzene	71-43-2	2,139 lbs	0 lbs	2,139 lbs
31	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
32	Phenol	108-95-2	1,875 lbs	0 lbs	1,875 lbs
33	Maleic anhydride	108-31-6	1,730 lbs	0 lbs	1,730 lbs
34	n-Butyl alcohol	71-36-3	1,564 lbs	0 lbs	1,564 lbs
35	Styrene	100-42-5	1,383 lbs	0 lbs	1,383 lbs
36	Xylene (mixed isomers)	1330-20-7	1,270 lbs	0 lbs	1,270 lbs
37	Acrolein	107-02-8	1,224 lbs	0 lbs	1,224 lbs
38	Nickel compounds	N495	1,017 lbs	108 lbs	1,125 lbs
39	Formaldehyde	50-00-0	1,109 lbs	0 lbs	1,109 lbs
40	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
41	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
42	1,2,4-Trimethylbenzene	95-63-6	624 lbs	0 lbs	624 lbs
43	Nonylphenol	N530	551 lbs	0 lbs	551 lbs
44	Naphthalene	91-20-3	538 lbs	0 lbs	538 lbs
45	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
46	Certain glycol ethers	N230	493 lbs	0 lbs	493 lbs
47	Cobalt compounds	N096	455 lbs	36 lbs	491 lbs
48	Nickel And Nickel Compounds	N495	423 lbs	34 lbs	457 lbs
49	Ethylbenzene	100-41-4	365 lbs	0 lbs	365 lbs
50	Dimethylamine	124-40-3	228 lbs	0 lbs	228 lbs
51	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
52	Cobalt And Cobalt Compounds	N096	182 lbs	8 lbs	190 lbs
53	Vanadium (except when contained in an alloy)	7440-62-2	170 lbs	0 lbs	170 lbs
54	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
55	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
56	Diphenylamine	122-39-4	105 lbs	0 lbs	105 lbs
57	Chlorobenzene	108-90-7	100 lbs	0 lbs	100 lbs
58	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
59	Vanadium compounds	N770	67 lbs	0 lbs	67 lbs
60	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
61	Hydrazine	302-01-2	39 lbs	0 lbs	39 lbs
62	N,N-Dimethylformamide	68-12-2	39 lbs	0 lbs	39 lbs
63	Benzoyl chloride	98-88-4	33 lbs	0 lbs	33 lbs
64	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
65	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
66	Lead And Lead Compounds	N420	16 lbs	1 lbs	17 lbs
67	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
68	Acrylonitrile	107-13-1	4 lbs	0 lbs	4 lbs
69	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
70	4,4'-Isopropylidenediphenol	80-05-7	1 lbs	0 lbs	1 lbs