Home > Analysis: 1228 Bernard St, Pasadena, TX 77506 08/29/2025

📊 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

1228 BERNARD ST PASADENA 77506

Building Size

2,646 sqft

Total structure area from HCAD building records.

Elevation

24.45 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: 14.45 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 88% 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)

4.12 million lbs

Extremely High

631.9x more than typical Houston property
≈ 206 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)

4.11 million lbs

Extremely High

851.8x 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)

7 thousand lbs

Very 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)	4,122,979 lbs	4,107,802 lbs	7,483 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	250,587 lbs	200,980 lbs	509 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 88% 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):

Ethylene, n-Hexane, Propylene, Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 50 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (50 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Ethylene	74-85-1	1,138,404	0	1,138,404
2	n-Hexane	110-54-3	1,053,438	170	1,054,021
3	Propylene	115-07-1	271,630	0	271,630
4	Methanol	67-56-1	268,228	0	268,228
5	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	250,209	0	250,209
6	Hydrogen cyanide	74-90-8	213,734	0	213,734
7	Xylene (mixed isomers)	1330-20-7	210,040	129	212,508
8	Toluene	108-88-3	162,621	43	163,530
9	Ammonia	7664-41-7	115,868	0	115,868
10	Benzene	71-43-2	88,739	44	89,338
11	Vinyl acetate	108-05-4	70,754	0	70,754
12	1,2,4-Trimethylbenzene	95-63-6	44,568	105	44,936
13	Ethylbenzene	100-41-4	38,818	61	39,473
14	Hydrogen sulfide	7783-06-4	37,772	0	37,773
15	1,3-Butadiene	106-99-0	29,382	0	29,383
16	Naphthalene	91-20-3	16,265	21	17,609
17	Cyclohexane	110-82-7	15,071	0	15,830
18	Boron trifluoride	7637-07-2	14,388	0	14,388
19	Zinc compounds	N982	6,334	6,851	13,185
20	Cumene	98-82-8	8,710	10	8,903
21	Dimethylamine	124-40-3	6,912	0	6,912
22	Chlorine	7782-50-5	6,651	0	6,651
23	Acetaldehyde	75-07-0	6,116	0	6,116
24	Ethylene glycol	107-21-1	5,554	0	5,554
25	Biphenyl	92-52-4	4,816	0	5,138
26	Phenol	108-95-2	5,078	0	5,078
27	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	5,066	0	5,066
28	Formaldehyde	50-00-0	3,141	0	3,141
29	Acrylonitrile	107-13-1	2,224	0	2,224
30	Propylene oxide	75-56-9	1,829	0	1,829
31	o-Cresol	95-48-7	1,585	0	1,585
32	Formic acid	64-18-6	1,406	0	1,406
33	Maleic anhydride	108-31-6	1,009	0	1,009
34	Diethanolamine	111-42-2	600	0	600
35	Hydrogen fluoride	7664-39-3	229	0	299
36	Nickel	7440-02-0	120	0	120
37	Diphenylamine	122-39-4	118	0	118
38	Certain glycol ethers	N230	92	0	92
39	Manganese	7439-96-5	70	0	70
40	Styrene	100-42-5	56	0	56
41	Chromium	7440-47-3	40	0	40
42	C.I. Food Red 15	81-88-9	40	0	40
43	Mercury	7439-97-6	30	0	30
44	Polycyclic aromatic compounds	N590	24	2	26
45	Lead And Lead Compounds	N420	3	22	25
46	Lead compounds	N420	2	22	23
47	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	11	0	11
48	Methyl tert-butyl ether	1634-04-4	2	5	10
49	Benzo[g,h,i]perylene	191-24-2	3	0	3
50	Mercury And Mercury Compounds	N458	1	0	1

Top chemicals released near this property (2024 only):

Ethylene, Methanol, n-Hexane, Zinc compounds, Xylene (mixed isomers)

View the full list of 43 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (43 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Ethylene	74-85-1	115,179	0	115,179
2	Methanol	67-56-1	15,808	0	42,599
3	n-Hexane	110-54-3	16,076	0	16,115
4	Zinc compounds	N982	678	476	9,871
5	Xylene (mixed isomers)	1330-20-7	9,135	15	9,562
6	Toluene	108-88-3	6,981	5	8,879
7	Ammonia	7664-41-7	7,948	0	8,735
8	Vinyl acetate	108-05-4	5,850	0	5,852
9	1,2,4-Trimethylbenzene	95-63-6	5,045	0	5,706
10	Benzene	71-43-2	4,587	4	4,684
11	Phenol	108-95-2	2,206	0	3,579
12	Formaldehyde	50-00-0	354	0	3,326
13	Formic acid	64-18-6	189	0	1,968
14	Ethylbenzene	100-41-4	1,757	7	1,802
15	1,3-Butadiene	106-99-0	1,251	0	1,251
16	Boron trifluoride	7637-07-2	1,178	0	1,178
17	o-Cresol	95-48-7	88	0	1,122
18	Propylene	115-07-1	1,119	0	1,119
19	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	1	0	1,095
20	Hydrogen sulfide	7783-06-4	923	0	923
21	Dimethylamine	124-40-3	864	0	884
22	Naphthalene	91-20-3	737	1	760
23	Ethylene glycol	107-21-1	530	0	550
24	Cumene	98-82-8	430	0	535
25	Chlorine	7782-50-5	512	0	512
26	Perfluorooctanoic acid	335-67-1	0	0	402
27	Lead And Lead Compounds	N420	1	1	391
28	Cyclohexane	110-82-7	355	0	373
29	Acrylonitrile	107-13-1	278	0	294
30	Maleic anhydride	108-31-6	132	0	281
31	Lead compounds	N420	0	0	269
32	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	265	0	265
33	Propylene oxide	75-56-9	255	0	255
34	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	96	0	96
35	Acetaldehyde	75-07-0	45	0	45
36	Manganese	7439-96-5	30	0	30
37	Chromium	7440-47-3	25	0	25
38	Nickel	7440-02-0	24	0	24
39	Diphenylamine	122-39-4	23	0	23
40	Certain glycol ethers	N230	11	0	11
41	Diethanolamine	111-42-2	10	0	10
42	Styrene	100-42-5	7	0	7
43	Polycyclic aromatic compounds	N590	0	0	1