Complete Property Analysis

Environmental risk, tax analysis, and property details for 927 Hackberry St, La Porte, TX 77571

HCAD #1000570000006

🧭Jump to Section

🌍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

927 Hackberry St, La Porte, TX 77571

Building Size

2,264sqft

Total structure area from HCAD building records.

Elevation

9.49 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)

19.34 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)

$134,830

Based on HCAD building value of $207,431.

Depth-Damage (Neighborhood)

$106,323

Based on neighborhood replacement cost.

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

Simulation shows 0.3ft of flooding - mitigation measures recommended

Consider elevating utilities, HVAC systems, and electrical panels above anticipated flood levels

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

12.9th percentile

Property Pollution Ranking

High

Higher pollution than 87% of Houston homes

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

Industrial Pollution Nearby (10 Years)

3.76 millionlbs

Extremely High

575.9x more than typical Houston property

≈ 188 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

3.76 millionlbs

Extremely High

779.0x more than typical Houston property

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

Water Pollution (10 Years)

567lbs

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)	3,757,389 lbs	3,756,822 lbs	567 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	274,643 lbs	274,592 lbs	51 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 87% 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):
Toluene, Methanol, Ethylene, Ammonia, Acrylic acid
View the full list of 76 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(76 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Toluene	108-88-3	711,522 lbs	0 lbs	711,522 lbs
2	Methanol	67-56-1	662,641 lbs	55 lbs	662,696 lbs
3	Ethylene	74-85-1	346,604 lbs	0 lbs	346,604 lbs
4	Ammonia	7664-41-7	335,424 lbs	0 lbs	335,424 lbs
5	Acrylic acid	79-10-7	251,302 lbs	0 lbs	251,302 lbs
6	n-Hexane	110-54-3	205,902 lbs	0 lbs	205,902 lbs
7	Vinyl acetate	108-05-4	142,721 lbs	0 lbs	142,721 lbs
8	Titanium tetrachloride	7550-45-0	108,195 lbs	0 lbs	108,195 lbs
9	Cyclohexane	110-82-7	102,641 lbs	0 lbs	102,641 lbs
10	Propylene oxide	75-56-9	95,696 lbs	0 lbs	95,696 lbs
11	1,3-Butadiene	106-99-0	89,666 lbs	0 lbs	89,666 lbs
12	Acrylonitrile	107-13-1	83,639 lbs	0 lbs	83,639 lbs
13	Propylene	115-07-1	57,546 lbs	0 lbs	57,546 lbs
14	n-Butyl alcohol	71-36-3	55,708 lbs	0 lbs	55,708 lbs
15	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
16	Isoprene	78-79-5	47,793 lbs	0 lbs	47,793 lbs
17	Hydroquinone	123-31-9	42,849 lbs	0 lbs	42,849 lbs
18	Ethylene glycol	107-21-1	37,504 lbs	0 lbs	37,504 lbs
19	Methyl isobutyl ketone	108-10-1	36,313 lbs	0 lbs	36,313 lbs
20	Xylene (mixed isomers)	1330-20-7	35,072 lbs	0 lbs	35,072 lbs
21	Certain glycol ethers	N230	34,372 lbs	0 lbs	34,372 lbs
22	Cumene	98-82-8	31,111 lbs	0 lbs	31,111 lbs
23	Phenol	108-95-2	30,497 lbs	0 lbs	30,497 lbs
24	Styrene	100-42-5	17,954 lbs	0 lbs	17,954 lbs
25	Acetaldehyde	75-07-0	14,843 lbs	0 lbs	14,843 lbs
26	Chlorine	7782-50-5	12,676 lbs	0 lbs	12,676 lbs
27	Benzene	71-43-2	10,536 lbs	0 lbs	10,536 lbs
28	Formaldehyde	50-00-0	10,409 lbs	0 lbs	10,409 lbs
29	Epichlorohydrin	106-89-8	8,484 lbs	0 lbs	8,484 lbs
30	Dimethylamine	124-40-3	7,773 lbs	0 lbs	7,773 lbs
31	Maleic anhydride	108-31-6	6,232 lbs	0 lbs	6,232 lbs
32	Trade Secret	TRD SECRT	5,905 lbs	88 lbs	5,993 lbs
33	Ethylbenzene	100-41-4	5,941 lbs	0 lbs	5,941 lbs
34	Diphenylamine	122-39-4	5,851 lbs	0 lbs	5,851 lbs
35	Dibutyl phthalate	84-74-2	5,792 lbs	0 lbs	5,792 lbs
36	1,2,4-Trimethylbenzene	95-63-6	4,544 lbs	0 lbs	4,544 lbs
37	tert-Butyl alcohol	75-65-0	4,519 lbs	0 lbs	4,519 lbs
38	Chloroacetic acid	79-11-8	4,175 lbs	0 lbs	4,175 lbs
39	Propyleneimine	75-55-8	3,701 lbs	0 lbs	3,701 lbs
40	Methyl methacrylate	80-62-6	3,050 lbs	0 lbs	3,050 lbs
41	1,4-Dioxane	123-91-1	2,644 lbs	0 lbs	2,644 lbs
42	Butyl acrylate	141-32-2	2,517 lbs	0 lbs	2,517 lbs
43	1,2-Butylene oxide	106-88-7	2,348 lbs	0 lbs	2,348 lbs
44	Formic acid	64-18-6	2,017 lbs	0 lbs	2,017 lbs
45	Nonylphenol	N530	1,974 lbs	0 lbs	1,974 lbs
46	Phosgene	75-44-5	1,958 lbs	0 lbs	1,958 lbs
47	Allyl alcohol	107-18-6	1,820 lbs	0 lbs	1,820 lbs
48	Naphthalene	91-20-3	1,635 lbs	0 lbs	1,635 lbs
49	Ethylene oxide	75-21-8	1,600 lbs	0 lbs	1,600 lbs
50	Ethyl chloroformate	541-41-3	1,467 lbs	0 lbs	1,467 lbs
51	Methyl chlorocarbonate	79-22-1	1,449 lbs	0 lbs	1,449 lbs
52	sec-Butyl alcohol	78-92-2	1,434 lbs	0 lbs	1,434 lbs
53	Nitric acid	7697-37-2	1,419 lbs	0 lbs	1,419 lbs
54	Dicyclopentadiene	77-73-6	1,387 lbs	0 lbs	1,387 lbs
55	Nonylphenol Ethoxylates	N535	773 lbs	0 lbs	773 lbs
56	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
57	Hydrazine	302-01-2	437 lbs	0 lbs	437 lbs
58	Acrolein	107-02-8	402 lbs	0 lbs	402 lbs
59	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	370 lbs	370 lbs
60	Benzyl chloride	100-44-7	228 lbs	0 lbs	228 lbs
61	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
62	Diethanolamine	111-42-2	106 lbs	0 lbs	106 lbs
63	Diethyl sulfate	64-67-5	85 lbs	0 lbs	85 lbs
64	Zinc compounds	N982	48 lbs	33 lbs	81 lbs
65	Phthalic anhydride	85-44-9	40 lbs	0 lbs	40 lbs
66	Antimony compounds	N010	20 lbs	15 lbs	35 lbs
67	N,N-Dimethylformamide	68-12-2	34 lbs	0 lbs	34 lbs
68	Acetonitrile	75-05-8	33 lbs	0 lbs	33 lbs
69	Bis(2-chloroethyl) ether	111-44-4	26 lbs	0 lbs	26 lbs
70	2,4-Dimethylphenol	105-67-9	17 lbs	0 lbs	17 lbs
71	Triethylamine	121-44-8	10 lbs	0 lbs	15 lbs
72	Antimony And Antimony Compounds	N010	5 lbs	5 lbs	10 lbs
73	1,3-Phenylenediamine	108-45-2	2 lbs	0 lbs	2 lbs
74	Lead	7439-92-1	2 lbs	0 lbs	2 lbs
75	Boron trifluoride	7637-07-2	1 lbs	0 lbs	1 lbs
76	Nickel compounds	N495	0 lbs	1 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
Toluene, Ammonia, Methanol, Ethylene, Acrylic acid
View the full list of 58 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(58 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Toluene	108-88-3	39,610 lbs	0 lbs	39,610 lbs
2	Ammonia	7664-41-7	30,863 lbs	0 lbs	30,863 lbs
3	Methanol	67-56-1	30,608 lbs	5 lbs	30,613 lbs
4	Ethylene	74-85-1	24,713 lbs	0 lbs	24,713 lbs
5	Acrylic acid	79-10-7	21,027 lbs	0 lbs	21,027 lbs
6	n-Hexane	110-54-3	19,447 lbs	0 lbs	19,447 lbs
7	Vinyl acetate	108-05-4	14,116 lbs	0 lbs	14,116 lbs
8	Isoprene	78-79-5	12,309 lbs	0 lbs	12,309 lbs
9	Propylene	115-07-1	11,682 lbs	0 lbs	11,682 lbs
10	Titanium tetrachloride	7550-45-0	10,755 lbs	0 lbs	10,755 lbs
11	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
12	Cyclohexane	110-82-7	8,101 lbs	0 lbs	8,101 lbs
13	Propylene oxide	75-56-9	7,974 lbs	0 lbs	7,974 lbs
14	Hydroquinone	123-31-9	4,885 lbs	0 lbs	4,885 lbs
15	Methyl isobutyl ketone	108-10-1	3,997 lbs	0 lbs	3,997 lbs
16	1,3-Butadiene	106-99-0	3,642 lbs	0 lbs	3,642 lbs
17	Ethylene glycol	107-21-1	3,258 lbs	0 lbs	3,258 lbs
18	Cumene	98-82-8	2,611 lbs	0 lbs	2,611 lbs
19	Phenol	108-95-2	1,875 lbs	0 lbs	1,875 lbs
20	Maleic anhydride	108-31-6	1,351 lbs	0 lbs	1,351 lbs
21	Xylene (mixed isomers)	1330-20-7	1,270 lbs	0 lbs	1,270 lbs
22	Benzene	71-43-2	1,090 lbs	0 lbs	1,090 lbs
23	n-Butyl alcohol	71-36-3	1,017 lbs	0 lbs	1,017 lbs
24	tert-Butyl alcohol	75-65-0	986 lbs	0 lbs	986 lbs
25	Chlorine	7782-50-5	961 lbs	0 lbs	961 lbs
26	Styrene	100-42-5	798 lbs	0 lbs	798 lbs
27	Epichlorohydrin	106-89-8	643 lbs	0 lbs	643 lbs
28	1,2,4-Trimethylbenzene	95-63-6	624 lbs	0 lbs	624 lbs
29	Nonylphenol	N530	551 lbs	0 lbs	551 lbs
30	Acetaldehyde	75-07-0	496 lbs	0 lbs	496 lbs
31	Dibutyl phthalate	84-74-2	496 lbs	0 lbs	496 lbs
32	Chloroacetic acid	79-11-8	476 lbs	0 lbs	476 lbs
33	Ethylene oxide	75-21-8	462 lbs	0 lbs	462 lbs
34	Formaldehyde	50-00-0	447 lbs	0 lbs	447 lbs
35	Certain glycol ethers	N230	421 lbs	0 lbs	421 lbs
36	Methyl methacrylate	80-62-6	387 lbs	0 lbs	387 lbs
37	Ethylbenzene	100-41-4	365 lbs	0 lbs	365 lbs
38	Naphthalene	91-20-3	235 lbs	0 lbs	235 lbs
39	Dimethylamine	124-40-3	228 lbs	0 lbs	228 lbs
40	Di(2-ethylhexyl) phthalate	117-81-7	222 lbs	0 lbs	222 lbs
41	Nitric acid	7697-37-2	219 lbs	0 lbs	219 lbs
42	Formic acid	64-18-6	175 lbs	0 lbs	175 lbs
43	1,4-Dioxane	123-91-1	126 lbs	0 lbs	126 lbs
44	Ethyl chloroformate	541-41-3	120 lbs	0 lbs	120 lbs
45	Benzyl chloride	100-44-7	119 lbs	0 lbs	119 lbs
46	Diphenylamine	122-39-4	105 lbs	0 lbs	105 lbs
47	Dicyclopentadiene	77-73-6	97 lbs	0 lbs	97 lbs
48	Allyl alcohol	107-18-6	96 lbs	0 lbs	96 lbs
49	sec-Butyl alcohol	78-92-2	93 lbs	0 lbs	93 lbs
50	1,2-Butylene oxide	106-88-7	52 lbs	0 lbs	52 lbs
51	Trade Secret	TRD SECRT	0 lbs	46 lbs	46 lbs
52	Hydrazine	302-01-2	39 lbs	0 lbs	39 lbs
53	Propyleneimine	75-55-8	32 lbs	0 lbs	32 lbs
54	Acrolein	107-02-8	28 lbs	0 lbs	28 lbs
55	Phosgene	75-44-5	27 lbs	0 lbs	27 lbs
56	Acetonitrile	75-05-8	24 lbs	0 lbs	24 lbs
57	Phthalic anhydride	85-44-9	14 lbs	0 lbs	14 lbs
58	Methyl chlorocarbonate	79-22-1	13 lbs	0 lbs	13 lbs