Complete Property Analysis

Environmental risk, tax analysis, and property details for 1901 S 16th St, La Porte, TX 77571

HCAD #1292170040004

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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

1901 S 16th St, La Porte, TX 77571

Elevation

15.21 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)

25.05 ft

Water surface elevation relative to sea level (NAVD88 datum).

Area Inundated

293.6 acres

99.5% of 500m radius flooded.

Nearest Bayou Stage

N/A

No nearby bayou within monitoring range

Depth-Damage (HCAD Valuation)

$16,451,054

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

10.0th percentile

Property Pollution Ranking

Very 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)

7.99 millionlbs

Extremely High

1225.3x more than typical Houston property

≈ 400 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

7.98 millionlbs

Extremely High

1654.3x more than typical Houston property

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

Water Pollution (10 Years)

17 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)	7,994,361 lbs	7,977,717 lbs	16,644 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	640,515 lbs	639,235 lbs	1,280 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):
n-Hexane, Methanol, Ethylene, Ammonia, Toluene
View the full list of 91 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(91 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	n-Hexane	110-54-3	1,274,648 lbs	0 lbs	1,274,648 lbs
2	Methanol	67-56-1	1,129,267 lbs	55 lbs	1,129,322 lbs
3	Ethylene	74-85-1	1,120,937 lbs	0 lbs	1,120,937 lbs
4	Ammonia	7664-41-7	986,259 lbs	55 lbs	986,334 lbs
5	Toluene	108-88-3	713,402 lbs	0 lbs	713,402 lbs
6	Vinyl acetate	108-05-4	659,074 lbs	0 lbs	659,074 lbs
7	Nitric acid	7697-37-2	398,872 lbs	55 lbs	398,952 lbs
8	Propylene	115-07-1	109,544 lbs	0 lbs	109,544 lbs
9	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
10	Acrylic acid	79-10-7	103,139 lbs	0 lbs	103,139 lbs
11	Cyclohexane	110-82-7	102,641 lbs	0 lbs	102,641 lbs
12	Acetaldehyde	75-07-0	96,270 lbs	0 lbs	96,270 lbs
13	Propylene oxide	75-56-9	95,696 lbs	0 lbs	95,696 lbs
14	1,3-Butadiene	106-99-0	89,666 lbs	0 lbs	89,666 lbs
15	Acrylonitrile	107-13-1	83,639 lbs	0 lbs	83,639 lbs
16	n-Butyl alcohol	71-36-3	80,171 lbs	0 lbs	80,171 lbs
17	Ethylene glycol	107-21-1	69,563 lbs	0 lbs	69,563 lbs
18	Ethylene oxide	75-21-8	56,834 lbs	0 lbs	56,834 lbs
19	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	50,961 lbs	0 lbs	50,961 lbs
20	Isoprene	78-79-5	47,793 lbs	0 lbs	47,793 lbs
21	Hydroquinone	123-31-9	44,758 lbs	0 lbs	44,758 lbs
22	Butyl acrylate	141-32-2	42,511 lbs	0 lbs	42,511 lbs
23	Molybdenum trioxide	1313-27-5	37,655 lbs	3,227 lbs	40,897 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	Certain glycol ethers	N230	36,974 lbs	0 lbs	36,974 lbs
27	Xylene (mixed isomers)	1330-20-7	36,652 lbs	0 lbs	36,652 lbs
28	Methyl isobutyl ketone	108-10-1	36,313 lbs	0 lbs	36,313 lbs
29	Hydrogen sulfide	7783-06-4	31,678 lbs	0 lbs	31,678 lbs
30	Cumene	98-82-8	31,119 lbs	0 lbs	31,119 lbs
31	Phenol	108-95-2	30,497 lbs	0 lbs	30,497 lbs
32	Methyl acrylate	96-33-3	23,024 lbs	0 lbs	23,024 lbs
33	Styrene	100-42-5	17,954 lbs	0 lbs	17,954 lbs
34	Nickel compounds	N495	11,795 lbs	1,905 lbs	13,715 lbs
35	Chlorine	7782-50-5	12,676 lbs	0 lbs	12,676 lbs
36	Benzene	71-43-2	10,536 lbs	0 lbs	10,536 lbs
37	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	30 lbs	10,255 lbs	10,300 lbs
38	tert-Butyl alcohol	75-65-0	10,102 lbs	0 lbs	10,102 lbs
39	Formaldehyde	50-00-0	9,848 lbs	0 lbs	9,848 lbs
40	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
41	Dimethylamine	124-40-3	7,773 lbs	0 lbs	7,773 lbs
42	Cobalt compounds	N096	5,871 lbs	886 lbs	6,772 lbs
43	Ethylbenzene	100-41-4	5,941 lbs	0 lbs	5,941 lbs
44	Diphenylamine	122-39-4	5,851 lbs	0 lbs	5,851 lbs
45	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
46	Maleic anhydride	108-31-6	5,698 lbs	0 lbs	5,698 lbs
47	Methyl iodide	74-88-4	5,089 lbs	0 lbs	5,089 lbs
48	Nickel And Nickel Compounds	N495	4,878 lbs	62 lbs	4,940 lbs
49	Cobalt And Cobalt Compounds	N096	4,551 lbs	42 lbs	4,593 lbs
50	1,2,4-Trimethylbenzene	95-63-6	4,568 lbs	0 lbs	4,568 lbs
51	Chloroacetic acid	79-11-8	4,175 lbs	0 lbs	4,175 lbs
52	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
53	Allyl alcohol	107-18-6	3,389 lbs	0 lbs	3,389 lbs
54	Methyl methacrylate	80-62-6	3,050 lbs	0 lbs	3,050 lbs
55	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
56	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
57	Acrolein	107-02-8	2,268 lbs	0 lbs	2,268 lbs
58	Nonylphenol	N530	1,974 lbs	0 lbs	1,974 lbs
59	Phosgene	75-44-5	1,958 lbs	0 lbs	1,958 lbs
60	Naphthalene	91-20-3	1,635 lbs	0 lbs	1,635 lbs
61	Ethyl chloroformate	541-41-3	1,467 lbs	0 lbs	1,467 lbs
62	Methyl chlorocarbonate	79-22-1	1,449 lbs	0 lbs	1,449 lbs
63	sec-Butyl alcohol	78-92-2	1,434 lbs	0 lbs	1,434 lbs
64	Dicyclopentadiene	77-73-6	1,387 lbs	0 lbs	1,387 lbs
65	Nonylphenol Ethoxylates	N535	773 lbs	0 lbs	773 lbs
66	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
67	Benzoyl chloride	98-88-4	469 lbs	0 lbs	469 lbs
68	Hydrazine	302-01-2	437 lbs	0 lbs	437 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	Lead And Lead Compounds	N420	211 lbs	10 lbs	221 lbs
72	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	N040	145 lbs	30 lbs	175 lbs
73	Lead compounds	N420	138 lbs	4 lbs	142 lbs
74	Copper compounds	N100	132 lbs	6 lbs	138 lbs
75	Diethanolamine	111-42-2	106 lbs	0 lbs	106 lbs
76	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
77	Zinc compounds	N982	48 lbs	33 lbs	81 lbs
78	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
79	Antimony compounds	N010	20 lbs	15 lbs	35 lbs
80	N,N-Dimethylformamide	68-12-2	34 lbs	0 lbs	34 lbs
81	Acetonitrile	75-05-8	33 lbs	0 lbs	33 lbs
82	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
83	Formic acid	64-18-6	22 lbs	0 lbs	22 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	Antimony And Antimony Compounds	N010	5 lbs	5 lbs	10 lbs
87	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs
88	Cumene hydroperoxide	80-15-9	2 lbs	0 lbs	2 lbs
89	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
90	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
91	Boron trifluoride	7637-07-2	1 lbs	0 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Ammonia, Methanol, Toluene
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	n-Hexane	110-54-3	136,542 lbs	0 lbs	136,542 lbs
2	Ethylene	74-85-1	117,900 lbs	0 lbs	117,900 lbs
3	Ammonia	7664-41-7	105,871 lbs	5 lbs	105,876 lbs
4	Methanol	67-56-1	56,028 lbs	5 lbs	56,033 lbs
5	Toluene	108-88-3	39,610 lbs	0 lbs	39,610 lbs
6	Vinyl acetate	108-05-4	33,123 lbs	0 lbs	33,123 lbs
7	Propylene	115-07-1	13,046 lbs	0 lbs	13,046 lbs
8	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
9	Acrylic acid	79-10-7	11,887 lbs	0 lbs	11,887 lbs
10	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
11	Nitric acid	7697-37-2	9,707 lbs	5 lbs	9,712 lbs
12	Ethylene glycol	107-21-1	8,929 lbs	0 lbs	8,929 lbs
13	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	8,214 lbs	0 lbs	8,214 lbs
14	Cyclohexane	110-82-7	8,101 lbs	0 lbs	8,101 lbs
15	Propylene oxide	75-56-9	7,974 lbs	0 lbs	7,974 lbs
16	Hydroquinone	123-31-9	6,585 lbs	0 lbs	6,585 lbs
17	Acetaldehyde	75-07-0	4,031 lbs	0 lbs	4,031 lbs
18	Methyl isobutyl ketone	108-10-1	3,997 lbs	0 lbs	3,997 lbs
19	1,3-Butadiene	106-99-0	3,642 lbs	0 lbs	3,642 lbs
20	Hydrogen sulfide	7783-06-4	3,596 lbs	0 lbs	3,596 lbs
21	Ethyl acrylate	140-88-5	3,477 lbs	0 lbs	3,477 lbs
22	Molybdenum trioxide	1313-27-5	2,770 lbs	482 lbs	3,252 lbs
23	Methyl acrylate	96-33-3	2,867 lbs	0 lbs	2,867 lbs
24	Butyl acrylate	141-32-2	2,678 lbs	0 lbs	2,678 lbs
25	Cumene	98-82-8	2,611 lbs	0 lbs	2,611 lbs
26	Ethylene oxide	75-21-8	1,935 lbs	0 lbs	1,935 lbs
27	Phenol	108-95-2	1,875 lbs	0 lbs	1,875 lbs
28	n-Butyl alcohol	71-36-3	1,639 lbs	0 lbs	1,639 lbs
29	tert-Butyl alcohol	75-65-0	1,453 lbs	0 lbs	1,453 lbs
30	Maleic anhydride	108-31-6	1,325 lbs	0 lbs	1,325 lbs
31	Xylene (mixed isomers)	1330-20-7	1,270 lbs	0 lbs	1,270 lbs
32	Acrolein	107-02-8	1,224 lbs	0 lbs	1,224 lbs
33	Nickel compounds	N495	1,017 lbs	108 lbs	1,125 lbs
34	Formaldehyde	50-00-0	1,094 lbs	0 lbs	1,094 lbs
35	Benzene	71-43-2	1,090 lbs	0 lbs	1,090 lbs
36	Chlorine	7782-50-5	961 lbs	0 lbs	961 lbs
37	Methyl iodide	74-88-4	958 lbs	0 lbs	958 lbs
38	Styrene	100-42-5	798 lbs	0 lbs	798 lbs
39	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
40	1,2,4-Trimethylbenzene	95-63-6	624 lbs	0 lbs	624 lbs
41	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	622 lbs	622 lbs
42	Nonylphenol	N530	551 lbs	0 lbs	551 lbs
43	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
44	Certain glycol ethers	N230	493 lbs	0 lbs	493 lbs
45	Cobalt compounds	N096	455 lbs	36 lbs	491 lbs
46	Chloroacetic acid	79-11-8	476 lbs	0 lbs	476 lbs
47	Methyl methacrylate	80-62-6	387 lbs	0 lbs	387 lbs
48	Ethylbenzene	100-41-4	365 lbs	0 lbs	365 lbs
49	Naphthalene	91-20-3	235 lbs	0 lbs	235 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	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
53	Ethyl chloroformate	541-41-3	120 lbs	0 lbs	120 lbs
54	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
55	Diphenylamine	122-39-4	105 lbs	0 lbs	105 lbs
56	Dicyclopentadiene	77-73-6	97 lbs	0 lbs	97 lbs
57	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
58	sec-Butyl alcohol	78-92-2	93 lbs	0 lbs	93 lbs
59	Nickel And Nickel Compounds	N495	82 lbs	8 lbs	90 lbs
60	Cobalt And Cobalt Compounds	N096	82 lbs	8 lbs	90 lbs
61	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
62	Hydrazine	302-01-2	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	Phosgene	75-44-5	27 lbs	0 lbs	27 lbs
66	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
67	Lead And Lead Compounds	N420	16 lbs	1 lbs	17 lbs
68	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
69	Methyl chlorocarbonate	79-22-1	13 lbs	0 lbs	13 lbs
70	Manganese And Manganese Compounds	N450	3 lbs	0 lbs	3 lbs