Complete Property Analysis

Environmental risk, tax analysis, and property details for 0 Hwy 146, Pasadena, TX 77507

HCAD #1005150000436

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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 VE

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

0 Hwy 146, Pasadena, TX 77507

Elevation

-0.31 ft

Height above sea level from USGS data.

FEMA Flood Zone

Unknown

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)

9.53 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.

Coastal High Hazard Area: Subject to wave action and storm surge

Flood insurance required - structures must meet special construction standards

Buildings must be elevated on pilings or columns to allow wave passage underneath

Review FEMA Technical Bulletin 5 for coastal construction requirements

Simulation depth of 9.8ft indicates potential for significant interior damage

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

10.6th 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)

7.18 millionlbs

Extremely High

1099.9x more than typical Houston property

≈ 359 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

7.16 millionlbs

Extremely High

1485.0x 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)	7,176,317 lbs	7,161,016 lbs	15,301 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	568,214 lbs	566,069 lbs	2,145 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):
Methanol, Ethylene, tert-Butyl alcohol, Propylene, Vinyl acetate
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	Methanol	67-56-1	1,065,017 lbs	55 lbs	1,065,072 lbs
2	Ethylene	74-85-1	879,470 lbs	0 lbs	879,470 lbs
3	tert-Butyl alcohol	75-65-0	751,778 lbs	0 lbs	751,778 lbs
4	Propylene	115-07-1	638,844 lbs	0 lbs	638,844 lbs
5	Vinyl acetate	108-05-4	636,768 lbs	0 lbs	636,768 lbs
6	Ammonia	7664-41-7	632,163 lbs	0 lbs	632,163 lbs
7	Acrylic acid	79-10-7	347,925 lbs	0 lbs	347,925 lbs
8	Propylene oxide	75-56-9	310,051 lbs	0 lbs	310,051 lbs
9	Toluene	108-88-3	306,903 lbs	0 lbs	306,903 lbs
10	n-Hexane	110-54-3	261,517 lbs	0 lbs	261,517 lbs
11	Benzene	71-43-2	129,275 lbs	0 lbs	129,275 lbs
12	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
13	1,3-Butadiene	106-99-0	105,073 lbs	0 lbs	105,073 lbs
14	Cyclohexane	110-82-7	102,641 lbs	0 lbs	102,641 lbs
15	Acetaldehyde	75-07-0	84,518 lbs	0 lbs	84,518 lbs
16	Ethylene glycol	107-21-1	71,433 lbs	0 lbs	71,433 lbs
17	Ethylbenzene	100-41-4	66,752 lbs	0 lbs	66,752 lbs
18	Methyl methacrylate	80-62-6	59,716 lbs	0 lbs	59,988 lbs
19	Ethylene oxide	75-21-8	56,701 lbs	0 lbs	56,701 lbs
20	Styrene	100-42-5	55,408 lbs	0 lbs	55,539 lbs
21	Isoprene	78-79-5	51,809 lbs	0 lbs	51,809 lbs
22	Molybdenum trioxide	1313-27-5	51,068 lbs	0 lbs	51,068 lbs
23	Butyl acrylate	141-32-2	44,445 lbs	0 lbs	44,445 lbs
24	Chlorodifluoromethane (HCFC-22)	75-45-6	38,792 lbs	0 lbs	38,792 lbs
25	Ethyl acrylate	140-88-5	37,048 lbs	0 lbs	37,048 lbs
26	n-Butyl alcohol	71-36-3	37,001 lbs	0 lbs	37,001 lbs
27	Certain glycol ethers	N230	36,974 lbs	0 lbs	36,974 lbs
28	Methyl acrylate	96-33-3	23,030 lbs	0 lbs	23,030 lbs
29	Dicyclopentadiene	77-73-6	21,187 lbs	0 lbs	21,187 lbs
30	Xylene (mixed isomers)	1330-20-7	20,506 lbs	0 lbs	20,506 lbs
31	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
32	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	45 lbs	14,517 lbs	14,562 lbs
33	Maleic anhydride	108-31-6	10,306 lbs	0 lbs	10,306 lbs
34	Formaldehyde	50-00-0	9,631 lbs	0 lbs	9,631 lbs
35	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
36	Naphthalene	91-20-3	6,342 lbs	0 lbs	6,342 lbs
37	Trade Secret	TRD SECRT	5,905 lbs	88 lbs	5,993 lbs
38	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
39	Dimethylamine	124-40-3	5,764 lbs	0 lbs	5,764 lbs
40	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
41	Formic acid	64-18-6	4,910 lbs	0 lbs	4,910 lbs
42	1,2,4-Trimethylbenzene	95-63-6	4,752 lbs	0 lbs	4,752 lbs
43	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
44	Vanadium compounds	N770	3,122 lbs	0 lbs	3,137 lbs
45	Zinc compounds	N982	2,437 lbs	379 lbs	2,817 lbs
46	Acetonitrile	75-05-8	2,760 lbs	0 lbs	2,760 lbs
47	Acrolein	107-02-8	2,670 lbs	0 lbs	2,670 lbs
48	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
49	Hydroquinone	123-31-9	2,618 lbs	0 lbs	2,618 lbs
50	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
51	Nickel And Nickel Compounds	N495	2,238 lbs	75 lbs	2,313 lbs
52	Chlorine	7782-50-5	2,246 lbs	0 lbs	2,246 lbs
53	Acrylonitrile	107-13-1	2,062 lbs	0 lbs	2,062 lbs
54	Nitric acid	7697-37-2	2,042 lbs	0 lbs	2,042 lbs
55	Nonylphenol	N530	1,974 lbs	0 lbs	1,974 lbs
56	Allyl alcohol	107-18-6	1,830 lbs	0 lbs	1,830 lbs
57	Vanadium (except when contained in an alloy)	7440-62-2	1,691 lbs	0 lbs	1,691 lbs
58	Nickel compounds	N495	1,389 lbs	21 lbs	1,410 lbs
59	o-Xylene	95-47-6	815 lbs	0 lbs	815 lbs
60	Nonylphenol Ethoxylates	N535	773 lbs	0 lbs	773 lbs
61	Cobalt And Cobalt Compounds	N096	741 lbs	0 lbs	741 lbs
62	Chlorobenzene	108-90-7	583 lbs	0 lbs	583 lbs
63	N,N-Dimethylformamide	68-12-2	511 lbs	0 lbs	511 lbs
64	Cobalt compounds	N096	454 lbs	0 lbs	454 lbs
65	Diethanolamine	111-42-2	414 lbs	0 lbs	414 lbs
66	Cumene	98-82-8	384 lbs	0 lbs	384 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	Antimony And Antimony Compounds	N010	90 lbs	82 lbs	171 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	102 lbs	14 lbs	116 lbs
74	Antimony compounds	N010	64 lbs	40 lbs	104 lbs
75	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
76	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
77	Lead And Lead Compounds	N420	33 lbs	3 lbs	37 lbs
78	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	30 lbs	4 lbs	34 lbs
79	Sodium nitrite	7632-00-0	33 lbs	0 lbs	33 lbs
80	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
81	Zinc (fume or dust)	7440-66-6	26 lbs	0 lbs	26 lbs
82	Lead compounds	N420	17 lbs	1 lbs	18 lbs
83	Copper compounds	N100	0 lbs	18 lbs	18 lbs
84	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
85	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
86	Cadmium compounds	N078	11 lbs	0 lbs	11 lbs
87	Pyridine	110-86-1	10 lbs	0 lbs	10 lbs
88	Chromium	7440-47-3	7 lbs	2 lbs	9 lbs
89	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
90	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
91	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
92	Biphenyl	92-52-4	2 lbs	0 lbs	2 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, Ammonia, Ethylene, Methanol, Propylene
View the full list of 66 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(66 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	tert-Butyl alcohol	75-65-0	101,697 lbs	0 lbs	101,697 lbs
2	Ammonia	7664-41-7	62,363 lbs	0 lbs	62,363 lbs
3	Ethylene	74-85-1	62,190 lbs	0 lbs	62,190 lbs
4	Methanol	67-56-1	49,984 lbs	5 lbs	49,989 lbs
5	Propylene	115-07-1	42,513 lbs	0 lbs	42,513 lbs
6	Acrylic acid	79-10-7	32,603 lbs	0 lbs	32,603 lbs
7	Vinyl acetate	108-05-4	30,705 lbs	0 lbs	30,705 lbs
8	Toluene	108-88-3	27,115 lbs	0 lbs	27,115 lbs
9	Propylene oxide	75-56-9	23,061 lbs	0 lbs	23,061 lbs
10	n-Hexane	110-54-3	20,002 lbs	0 lbs	20,002 lbs
11	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
12	Methyl methacrylate	80-62-6	12,306 lbs	0 lbs	12,306 lbs
13	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
14	Benzene	71-43-2	9,442 lbs	0 lbs	9,442 lbs
15	Ethylene glycol	107-21-1	8,935 lbs	0 lbs	8,935 lbs
16	Cyclohexane	110-82-7	8,101 lbs	0 lbs	8,101 lbs
17	Molybdenum trioxide	1313-27-5	4,957 lbs	0 lbs	4,957 lbs
18	1,3-Butadiene	106-99-0	4,450 lbs	0 lbs	4,450 lbs
19	Styrene	100-42-5	4,339 lbs	0 lbs	4,339 lbs
20	Ethylbenzene	100-41-4	4,042 lbs	0 lbs	4,042 lbs
21	Acetaldehyde	75-07-0	3,537 lbs	0 lbs	3,537 lbs
22	Butyl acrylate	141-32-2	3,526 lbs	0 lbs	3,526 lbs
23	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
24	Methyl acrylate	96-33-3	2,869 lbs	0 lbs	2,869 lbs
25	Dicyclopentadiene	77-73-6	2,465 lbs	0 lbs	2,465 lbs
26	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	2,038 lbs	2,038 lbs
27	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
28	Hydroquinone	123-31-9	1,746 lbs	0 lbs	1,746 lbs
29	Ethylene oxide	75-21-8	1,659 lbs	0 lbs	1,659 lbs
30	Maleic anhydride	108-31-6	1,578 lbs	0 lbs	1,578 lbs
31	Acrolein	107-02-8	1,252 lbs	0 lbs	1,252 lbs
32	Formaldehyde	50-00-0	1,094 lbs	0 lbs	1,094 lbs
33	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
34	Acrylonitrile	107-13-1	883 lbs	0 lbs	883 lbs
35	Nitric acid	7697-37-2	850 lbs	0 lbs	850 lbs
36	Xylene (mixed isomers)	1330-20-7	674 lbs	0 lbs	674 lbs
37	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
38	n-Butyl alcohol	71-36-3	632 lbs	0 lbs	632 lbs
39	1,2,4-Trimethylbenzene	95-63-6	599 lbs	0 lbs	599 lbs
40	Nonylphenol	N530	551 lbs	0 lbs	551 lbs
41	Naphthalene	91-20-3	526 lbs	0 lbs	526 lbs
42	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
43	Certain glycol ethers	N230	493 lbs	0 lbs	493 lbs
44	Nickel And Nickel Compounds	N495	341 lbs	26 lbs	367 lbs
45	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
46	Formic acid	64-18-6	175 lbs	0 lbs	175 lbs
47	Vanadium (except when contained in an alloy)	7440-62-2	170 lbs	0 lbs	170 lbs
48	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
49	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
50	Chlorobenzene	108-90-7	100 lbs	0 lbs	100 lbs
51	Cobalt And Cobalt Compounds	N096	100 lbs	0 lbs	100 lbs
52	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
53	Vanadium compounds	N770	67 lbs	0 lbs	67 lbs
54	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
55	Trade Secret	TRD SECRT	0 lbs	46 lbs	46 lbs
56	Antimony And Antimony Compounds	N010	26 lbs	19 lbs	45 lbs
57	N,N-Dimethylformamide	68-12-2	39 lbs	0 lbs	39 lbs
58	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
59	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
60	Zinc compounds	N982	13 lbs	10 lbs	22 lbs
61	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
62	Zinc (fume or dust)	7440-66-6	9 lbs	0 lbs	9 lbs
63	Chromium	7440-47-3	4 lbs	1 lbs	4 lbs
64	Lead And Lead Compounds	N420	2 lbs	1 lbs	3 lbs
65	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
66	4,4'-Isopropylidenediphenol	80-05-7	1 lbs	0 lbs	1 lbs