Home > Analysis: 2806 Sandpebble Dr, Seabrook, TX 77586 12/11/2024

📊 Environmental Assessment Report

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.

🌊 Part 1: Flood Risk Analysis

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

2806 SANDPEBBLE DR SEABROOK 77586

Building Size

2,738 sqft

Total structure area from HCAD building records.

Elevation

10.93 ft

Height above sea level from USGS data.

FEMA Flood Zone

High Risk - 1% annual chance with established base flood elevation

Overall Risk

Moderate

Risk based on FEMA zone and simulation.

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

Moderate

Flood Depth

0 ft ±0.5 ft

No flooding at current water level.

Water Surface Elevation (WSE)

N/A

Water surface elevation data not available.

Area Inundated

N/A

Data not available

Nearest Bayou Stage

N/A

No nearby bayou within monitoring range

Depth-Damage Estimate (HCAD Valuation)

Property not flooded at current water level. No damage to calculate.

Depth-Damage Estimate (Neighborhood Comparison)

Property not flooded at current water level. No damage to calculate.

Analysis Method

COG Bathtub 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.

✅ Property Would Be Safe

Safety Margin: 0.93 feet
Severity: Safe

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.

This property is in a high-risk flood zone. Flood insurance is required for mortgages.
Consider flood mitigation measures like elevated utilities and flood vents.
Review the interactive flood simulator to understand how different rainfall events could affect this property.
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking

High

Higher pollution than 86% of Houston homes

This ranking compares pollution levels within 2 miles of this property against 10,000 randomly sampled Houston metro properties. Lower percentiles indicate higher pollution exposure.

Industrial Pollution Nearby (Last 10 Years)

2.86 million lbs

Extremely High

438.3x more than typical Houston property
≈ 143 dump trucks of chemicals within 2 miles

Total chemical releases from all industrial facilities within a 2-mile radius over the past decade (2014–2024). Data from EPA's Toxic Release Inventory tracking air, water, and land discharges.

💨 Air Pollution (Last 10 Years)

2.86 million lbs

Extremely High

592.9x more than typical Houston property

Chemicals released into the air from nearby facilities over 10 years. Includes both fugitive emissions (leaks, evaporation) and stack emissions (smokestacks, vents). May affect local air quality.

💧 Water Pollution (Last 10 Years)

310 lbs

High

Chemical discharges to surface water (bayous, streams, drainage) from industrial facilities within 2 miles over the past decade. May impact local waterways and drainage systems.

❤️ 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)	2,859,313 lbs	2,858,983 lbs	310 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	1,216,673 lbs	251,712 lbs	76 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 86% 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 15% most polluted).

Top chemicals released near this property (past 10 years):

tert-Butyl alcohol, Propylene, Methanol, Acrylic acid, Propylene oxide

View the full list of 61 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (61 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	tert-Butyl alcohol	75-65-0	750,524	0	750,524
2	Propylene	115-07-1	566,101	0	566,101
3	Methanol	67-56-1	308,012	0	308,012
4	Acrylic acid	79-10-7	248,318	0	248,318
5	Propylene oxide	75-56-9	214,725	0	214,725
6	Ethylene	74-85-1	178,679	0	178,679
7	Benzene	71-43-2	129,270	0	129,270
8	1,3-Butadiene	106-99-0	92,399	0	92,399
9	Ethylbenzene	100-41-4	66,024	0	66,024
10	Ammonia	7664-41-7	62,497	0	62,497
11	Toluene	108-88-3	51,402	0	51,402
12	Styrene	100-42-5	47,507	0	47,507
13	Isoprene	78-79-5	31,965	0	31,965
14	Molybdenum trioxide	1313-27-5	26,754	0	26,754
15	Dicyclopentadiene	77-73-6	20,009	0	20,009
16	Xylene (mixed isomers)	1330-20-7	12,272	0	12,272
17	Trade Secret	TRD SECRT	5,905	88	5,993
18	Dimethylamine	124-40-3	5,764	0	5,764
19	Maleic anhydride	108-31-6	5,267	0	5,267
20	Formic acid	64-18-6	4,888	0	4,888
21	Naphthalene	91-20-3	4,633	0	4,633
22	Propyleneimine	75-55-8	3,701	0	3,701
23	Acetonitrile	75-05-8	2,727	0	2,727
24	Formaldehyde	50-00-0	2,599	0	2,599
25	Zinc compounds	N982	2,389	113	2,502
26	Acrylonitrile	107-13-1	2,062	0	2,062
27	Butyl acrylate	141-32-2	1,939	0	1,939
28	Ethylene glycol	107-21-1	1,906	0	1,906
29	Ethylene oxide	75-21-8	1,298	0	1,298
30	n-Butyl alcohol	71-36-3	1,230	0	1,230
31	Epichlorohydrin	106-89-8	1,000	0	1,000
32	Vanadium compounds	N770	945	0	960
33	o-Xylene	95-47-6	815	0	815
34	Chlorobenzene	108-90-7	583	0	583
35	Acetaldehyde	75-07-0	504	0	504
36	Acrolein	107-02-8	402	0	402
37	Cumene	98-82-8	369	0	369
38	Hydroquinone	123-31-9	355	0	355
39	Diethanolamine	111-42-2	308	0	308
40	Phosphorus (yellow or white)	12185-10-3	250	0	250
41	Butyraldehyde	123-72-8	186	0	186
42	Antimony And Antimony Compounds	N010	85	77	161
43	4,4'-Isopropylidenediphenol	80-05-7	141	0	141
44	Antimony compounds	N010	44	25	69
45	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	45	0	45
46	Lead And Lead Compounds	N420	33	3	37
47	Sodium nitrite	7632-00-0	33	0	33
48	Zinc (fume or dust)	7440-66-6	26	0	26
49	Lead compounds	N420	17	1	18
50	1,2,4-Trimethylbenzene	95-63-6	18	0	18
51	Triethylamine	121-44-8	10	0	15
52	Cadmium compounds	N078	11	0	11
53	Allyl alcohol	107-18-6	10	0	10
54	Pyridine	110-86-1	10	0	10
55	Chromium	7440-47-3	7	2	9
56	Methyl acrylate	96-33-3	6	0	6
57	Lead	7439-92-1	2	0	2
58	Biphenyl	92-52-4	2	0	2
59	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	1	0	2
60	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	1	0	1
61	N-Methyl-2-pyrrolidone	872-50-4	1	0	1

Top chemicals released near this property (2024 only):

tert-Butyl alcohol, Methanol, Acrylic acid, Ethylene glycol, Toluene

View the full list of 36 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (36 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	tert-Butyl alcohol	75-65-0	101,671	0	635,087
2	Methanol	67-56-1	9,197	0	200,510
3	Acrylic acid	79-10-7	20,902	0	124,130
4	Ethylene glycol	107-21-1	10	0	58,156
5	Toluene	108-88-3	2,705	0	44,217
6	Propylene	115-07-1	39,502	0	39,878
7	Propylene oxide	75-56-9	15,147	0	33,169
8	Ethylene	74-85-1	16,290	0	16,290
9	Dicyclopentadiene	77-73-6	2,368	0	14,402
10	Isoprene	78-79-5	10,184	0	10,184
11	Benzene	71-43-2	9,442	0	9,998
12	Ammonia	7664-41-7	6,500	0	6,596
13	Ethylbenzene	100-41-4	3,948	0	5,723
14	Styrene	100-42-5	3,330	0	3,992
15	1,3-Butadiene	106-99-0	3,263	0	3,263
16	Molybdenum trioxide	1313-27-5	3,114	0	3,114
17	Xylene (mixed isomers)	1330-20-7	223	0	1,395
18	Formic acid	64-18-6	175	0	1,197
19	Maleic anhydride	108-31-6	1,173	0	1,173
20	Acrylonitrile	107-13-1	883	0	1,033
21	Butyl acrylate	141-32-2	848	0	848
22	Formaldehyde	50-00-0	151	0	672
23	Trade Secret	TRD SECRT	0	46	581
24	Naphthalene	91-20-3	303	0	303
25	Hydroquinone	123-31-9	23	0	185
26	Ethylene oxide	75-21-8	145	0	146
27	4,4'-Isopropylidenediphenol	80-05-7	1	0	146
28	Chlorobenzene	108-90-7	100	0	100
29	Antimony And Antimony Compounds	N010	26	19	62
30	Acrolein	107-02-8	28	0	38
31	Zinc compounds	N982	13	10	33
32	Propyleneimine	75-55-8	32	0	32
33	Zinc (fume or dust)	7440-66-6	9	0	9
34	Chromium	7440-47-3	4	1	5
35	Lead And Lead Compounds	N420	2	1	3
36	Methyl acrylate	96-33-3	2	0	2