Home > Analysis: 4627 Bayou Blvd, Baytown, TX 77521 12/04/2024

📊 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

4627 BAYOU BLVD BAYTOWN 77521

Building Size

1,800 sqft

Total structure area from HCAD building records.

Elevation

17.49 ft

Height above sea level from USGS data.

FEMA Flood Zone

Moderate to Low Risk - Outside 500-year floodplain

Overall Risk

Very Low

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

Very Low

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: 7.49 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.

FEMA Zone X (minimal hazard) - flood insurance available at preferred rates.
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)

3.22 million lbs

Extremely High

492.9x more than typical Houston property
≈ 161 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)

560 thousand lbs

Extremely High

116.1x 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)

2.66 million lbs

Extremely 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)	3,215,817 lbs	559,709 lbs	2,656,108 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	361,889 lbs	52,045 lbs	309,844 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Chlorobenzene, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Nitric acid

View the full list of 45 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (45 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	2,578,707	2,578,707
2	Ammonia	7664-41-7	190,444	69,066	259,510
3	Chlorobenzene	108-90-7	47,896	163	48,059
4	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	43,029	0	43,029
5	Nitric acid	7697-37-2	35,727	0	35,727
6	Styrene	100-42-5	34,808	0	34,808
7	Aniline	62-53-3	34,371	23	34,394
8	Cyclohexane	110-82-7	33,861	0	33,861
9	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	19,732	0	19,732
10	Dichloromethane	75-09-2	18,502	358	18,860
11	Toluene	108-88-3	16,694	21	16,715
12	Xylene (mixed isomers)	1330-20-7	16,260	0	16,260
13	Benzene	71-43-2	12,354	23	12,377
14	Chlorine	7782-50-5	8,463	0	8,463
15	Nitrobenzene	98-95-3	8,265	0	8,265
16	Maleic anhydride	108-31-6	8,262	0	8,262
17	Chloroform	67-66-3	2,786	3,031	5,817
18	1,2-Dichlorobenzene	95-50-1	4,717	6	4,723
19	Phosgene	75-44-5	4,151	0	4,151
20	Formaldehyde	50-00-0	3,706	0	3,706
21	Dichlorobenzene (mixed isomers)	25321-22-6	2,948	2	2,950
22	Chlorodifluoromethane (HCFC-22)	75-45-6	2,717	0	2,717
23	4,4'-Isopropylidenediphenol	80-05-7	187	2,489	2,676
24	Dibutyl phthalate	84-74-2	2,436	0	2,436
25	Ethylbenzene	100-41-4	2,093	0	2,093
26	Methanol	67-56-1	2,030	0	2,030
27	Nickel	7440-02-0	0	1,939	1,939
28	Carbon tetrachloride	56-23-5	599	0	599
29	Phenol	108-95-2	449	104	553
30	Methyl isobutyl ketone	108-10-1	422	0	422
31	Chloromethane	74-87-3	396	0	396
32	n-Hexane	110-54-3	331	0	331
33	Diisocyanates	N120	315	0	315
34	Diaminotoluene (mixed isomers)	25376-45-8	269	0	269
35	Dinitrotoluene (mixed isomers)	25321-14-6	21	167	188
36	2,4-Diaminotoluene	95-80-7	156	9	165
37	Toluene diisocyanate (mixed isomers)	26471-62-5	131	0	131
38	4,4'-Methylenedianiline	101-77-9	89	0	89
39	Toluene-2,6-diisocyanate	91-08-7	30	0	30
40	Toluene-2,4-diisocyanate	584-84-9	21	0	21
41	N,N-Dimethylformamide	68-12-2	15	0	15
42	1,4-Dichlorobenzene	106-46-7	12	0	12
43	o-Toluidine	95-53-4	12	0	12
44	Lead	7439-92-1	1	0	1
45	4-Aminobiphenyl	92-67-1	1	0	1

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Chlorobenzene, Aniline, Styrene

View the full list of 37 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (37 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	308,727	308,727
2	Ammonia	7664-41-7	15,745	0	15,745
3	Chlorobenzene	108-90-7	5,807	14	5,821
4	Aniline	62-53-3	4,471	0	4,471
5	Styrene	100-42-5	3,715	0	3,715
6	Dichloromethane	75-09-2	3,434	53	3,487
7	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	3,455	0	3,455
8	Nitric acid	7697-37-2	3,243	0	3,243
9	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	2,329	0	2,329
10	Cyclohexane	110-82-7	2,303	0	2,303
11	Xylene (mixed isomers)	1330-20-7	1,898	0	1,898
12	Toluene	108-88-3	1,846	0	1,846
13	Chlorine	7782-50-5	797	0	797
14	Nickel	7440-02-0	0	605	605
15	Nitrobenzene	98-95-3	566	0	566
16	Benzene	71-43-2	489	0	489
17	Ethylbenzene	100-41-4	382	0	382
18	Chloroform	67-66-3	90	268	358
19	Maleic anhydride	108-31-6	340	0	340
20	Dichlorobenzene (mixed isomers)	25321-22-6	275	0	275
21	1,2-Dichlorobenzene	95-50-1	232	0	232
22	Chloromethane	74-87-3	200	0	200
23	4,4'-Isopropylidenediphenol	80-05-7	11	174	185
24	Methanol	67-56-1	119	0	119
25	Phosgene	75-44-5	107	0	107
26	Formaldehyde	50-00-0	87	0	87
27	n-Hexane	110-54-3	29	0	29
28	2,4-Diaminotoluene	95-80-7	22	0	22
29	Phenol	108-95-2	16	3	19
30	Toluene diisocyanate (mixed isomers)	26471-62-5	13	0	13
31	1,4-Dichlorobenzene	106-46-7	8	0	8
32	Diisocyanates	N120	5	0	5
33	Diaminotoluene (mixed isomers)	25376-45-8	3	0	3
34	Dinitrotoluene (mixed isomers)	25321-14-6	3	0	3
35	Dibutyl phthalate	84-74-2	2	0	2
36	Toluene-2,6-diisocyanate	91-08-7	2	0	2
37	Toluene-2,4-diisocyanate	584-84-9	1	0	1