Home > Analysis: 9743 Veyblum St, Houston, TX 77029 02/26/2025

📊 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

9743 VEYBLUM ST A HOUSTON 77029

Building Size

1,810 sqft

Total structure area from HCAD building records.

Elevation

30.69 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: 20.69 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

Very High

Higher pollution than 92% 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)

15.73 million lbs

Extremely High

2411.4x more than typical Houston property
≈ 787 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)

2.7 million lbs

Extremely High

560.3x 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)

13.03 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)	15,732,770 lbs	2,701,829 lbs	13,030,931 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	2,300,282 lbs	242,943 lbs	2,052,703 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 92% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

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

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Ammonia, Ozone, Xylene (mixed isomers)

View the full list of 52 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (52 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	13,016,167	13,016,167
2	Hydrogen cyanide	74-90-8	1,408,014	0	1,408,014
3	Ammonia	7664-41-7	580,427	8,000	588,427
4	Ozone	10028-15-6	115,228	0	115,228
5	Xylene (mixed isomers)	1330-20-7	96,699	0	96,699
6	Toluene	108-88-3	94,346	17	94,363
7	Cyclohexane	110-82-7	80,270	0	80,270
8	n-Hexane	110-54-3	76,253	0	76,253
9	Benzene	71-43-2	60,178	10	60,188
10	Propylene	115-07-1	54,163	0	54,163
11	Ethylbenzene	100-41-4	21,378	50	21,429
12	Hydrogen sulfide	7783-06-4	17,681	3,527	21,208
13	1,2,4-Trimethylbenzene	95-63-6	17,458	0	17,458
14	Ethylene	74-85-1	16,593	0	16,593
15	Carbon disulfide	75-15-0	8,557	0	8,557
16	1,3-Butadiene	106-99-0	8,274	0	8,274
17	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	6,697	0	6,697
18	Cyanide compounds	N106	5,934	45	5,979
19	Molybdenum trioxide	1313-27-5	5,795	0	5,795
20	Naphthalene	91-20-3	4,613	0	4,614
21	Manganese	7439-96-5	4,228	0	4,228
22	Phenol	108-95-2	1,635	1,804	3,439
23	Methanol	67-56-1	3,095	0	3,095
24	Polycyclic aromatic compounds	N590	2,356	1	2,365
25	Styrene	100-42-5	2,274	0	2,275
26	Cumene	98-82-8	2,256	0	2,256
27	Zinc compounds	N982	1,466	26	1,492
28	Carbonyl sulfide	463-58-1	1,451	0	1,451
29	Nickel compounds	N495	654	489	1,143
30	Phenanthrene	85-01-8	937	0	937
31	Lead	7439-92-1	489	127	616
32	Vanadium compounds	N770	79	509	588
33	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	461	0	461
34	Certain glycol ethers	N230	402	0	402
35	Chloroacetic acid	79-11-8	330	0	330
36	Methyl methacrylate	80-62-6	265	0	265
37	Cresol (mixed isomers)	1319-77-3	232	0	232
38	Nickel And Nickel Compounds	N495	66	123	189
39	Cobalt compounds	N096	131	24	155
40	Lead And Lead Compounds	N420	140	6	146
41	Lead compounds	N420	42	6	48
42	Anthracene	120-12-7	44	0	44
43	Cobalt And Cobalt Compounds	N096	42	0	42
44	Antimony compounds	N010	38	0	38
45	Nickel	7440-02-0	35	0	35
46	Mercury compounds	N458	32	0	32
47	Nitric acid	7697-37-2	30	0	30
48	Benzo[g,h,i]perylene	191-24-2	28	0	28
49	Mercury	7439-97-6	12	0	12
50	Mercury And Mercury Compounds	N458	12	0	12
51	tert-Butyl alcohol	75-65-0	7	0	7
52	Dioxin and dioxin-like compounds	N150	1	0	1

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Ammonia, Ozone, Cyclohexane

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	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	2,051,661	2,051,661
2	Hydrogen cyanide	74-90-8	103,731	0	103,731
3	Ammonia	7664-41-7	77,541	1,027	82,163
4	Ozone	10028-15-6	25,701	0	25,701
5	Cyclohexane	110-82-7	7,486	0	7,486
6	Toluene	108-88-3	6,118	4	6,132
7	Benzene	71-43-2	4,935	4	4,940
8	Xylene (mixed isomers)	1330-20-7	4,353	0	4,357
9	Propylene	115-07-1	3,529	0	3,529
10	Molybdenum trioxide	1313-27-5	1,804	0	1,804
11	1,2,4-Trimethylbenzene	95-63-6	1,449	0	1,449
12	Ethylbenzene	100-41-4	1,412	4	1,419
13	Zinc compounds	N982	132	0	1,075
14	Carbonyl sulfide	463-58-1	1,041	0	1,041
15	1,3-Butadiene	106-99-0	734	0	734
16	Ethylene	74-85-1	620	0	620
17	n-Hexane	110-54-3	607	0	607
18	Naphthalene	91-20-3	241	0	258
19	Carbon disulfide	75-15-0	243	0	243
20	Cumene	98-82-8	241	0	241
21	Lead	7439-92-1	228	1	234
22	Phenol	108-95-2	164	0	184
23	Styrene	100-42-5	159	0	159
24	Hydrogen sulfide	7783-06-4	123	0	126
25	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	101	0	101
26	Lead And Lead Compounds	N420	96	2	100
27	Polycyclic aromatic compounds	N590	38	0	56
28	Cobalt And Cobalt Compounds	N096	42	0	42
29	Phenanthrene	85-01-8	36	0	36
30	Anthracene	120-12-7	1	0	14
31	Methyl methacrylate	80-62-6	10	0	10
32	Chloroacetic acid	79-11-8	10	0	10
33	Mercury And Mercury Compounds	N458	8	0	8
34	Benzo[g,h,i]perylene	191-24-2	8	0	8
35	Methanol	67-56-1	0	0	2
36	Cresol (mixed isomers)	1319-77-3	1	0	1