Home > Analysis: 702 E Belmont St, Pasadena, TX 77506

📊 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

702 E BELMONT ST PASADENA 77506

Elevation

23.5 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)

Vacant lot (no building data). No structure to calculate damage for.

Depth-Damage Estimate (Neighborhood Comparison)

Vacant lot (no building data). No structure to calculate damage for.

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: 13.5 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 90% 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)

8.46 million lbs

Extremely High

1297.1x more than typical Houston property
≈ 423 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)

8.41 million lbs

Extremely High

1744.1x 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)

43 thousand 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)	8,462,739 lbs	8,410,804 lbs	43,389 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	744,890 lbs	572,014 lbs	676 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 90% 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):

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

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	n-Hexane	110-54-3	1,530,198	179	1,530,868
2	Ethylene	74-85-1	1,431,475	0	1,431,475
3	Hydrogen cyanide	74-90-8	1,032,286	0	1,032,286
4	Ammonia	7664-41-7	848,961	33,581	882,542
5	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	528,487	0	528,487
6	Propylene	115-07-1	465,727	0	465,727
7	Xylene (mixed isomers)	1330-20-7	454,237	774	457,451
8	Toluene	108-88-3	346,279	235	347,491
9	Methanol	67-56-1	335,757	0	335,757
10	Benzene	71-43-2	293,985	147	294,717
11	1,3-Butadiene	106-99-0	249,321	0	249,322
12	Hydrogen sulfide	7783-06-4	244,215	0	244,216
13	n-Butyl alcohol	71-36-3	137,606	0	137,606
14	Diethanolamine	111-42-2	102,160	0	102,160
15	Cyclohexane	110-82-7	82,232	0	83,001
16	Vinyl acetate	108-05-4	70,754	0	70,754
17	Ethylbenzene	100-41-4	67,198	81	67,918
18	1,2,4-Trimethylbenzene	95-63-6	35,720	105	36,317
19	Propionaldehyde	123-38-6	31,241	0	31,241
20	Butyraldehyde	123-72-8	22,150	0	22,150
21	Naphthalene	91-20-3	20,519	24	21,879
22	Dicyclopentadiene	77-73-6	14,013	0	14,013
23	Isoprene	78-79-5	13,272	0	13,272
24	Cumene	98-82-8	9,291	10	9,491
25	Zinc compounds	N982	2,208	6,916	9,124
26	Dimethylamine	124-40-3	6,912	0	6,912
27	Acetaldehyde	75-07-0	6,116	0	6,116
28	Ethylene glycol	107-21-1	5,553	0	5,562
29	Biphenyl	92-52-4	5,161	0	5,502
30	Isobutyraldehyde	78-84-2	4,080	0	4,080
31	Polycyclic aromatic compounds	N590	2,909	117	3,228
32	Formaldehyde	50-00-0	2,284	0	2,284
33	Acrylonitrile	107-13-1	2,224	0	2,224
34	Phenol	108-95-2	815	1,155	1,970
35	Propylene oxide	75-56-9	1,829	0	1,829
36	Formic acid	64-18-6	1,406	0	1,406
37	Styrene	100-42-5	1,198	0	1,198
38	Hydrogen fluoride	7664-39-3	229	0	299
39	Chlorine	7782-50-5	273	0	273
40	Nickel	7440-02-0	120	0	120
41	Mercury	7439-97-6	106	0	106
42	Certain glycol ethers	N230	92	0	92
43	Manganese	7439-96-5	70	0	70
44	Chromium	7440-47-3	40	0	40
45	C.I. Food Red 15	81-88-9	40	0	40
46	Anthracene	120-12-7	31	0	31
47	Lead compounds	N420	4	27	30
48	Lead And Lead Compounds	N420	3	27	30
49	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	11	0	11
50	Benzo[g,h,i]perylene	191-24-2	3	7	11
51	Methyl tert-butyl ether	1634-04-4	2	5	10
52	Mercury And Mercury Compounds	N458	1	0	1

Top chemicals released near this property (2024 only):

Ethylene, Ammonia, Diethanolamine, Hydrogen cyanide, n-Hexane

View the full list of 48 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (48 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Ethylene	74-85-1	138,520	0	138,520
2	Ammonia	7664-41-7	91,475	93	127,288
3	Diethanolamine	111-42-2	10,092	0	85,621
4	Hydrogen cyanide	74-90-8	73,728	0	73,728
5	n-Hexane	110-54-3	56,430	0	56,540
6	Xylene (mixed isomers)	1330-20-7	38,390	33	38,806
7	1,3-Butadiene	106-99-0	33,626	0	33,626
8	Zinc compounds	N982	355	481	28,303
9	Toluene	108-88-3	24,676	13	26,690
10	Benzene	71-43-2	20,461	6	20,600
11	Methanol	67-56-1	15,730	0	20,533
12	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	17,341	0	17,341
13	Hydrogen sulfide	7783-06-4	14,345	0	14,345
14	Propylene	115-07-1	10,627	0	10,627
15	Ethylene glycol	107-21-1	529	0	7,568
16	Vanadium compounds	N770	0	0	6,689
17	Vinyl acetate	108-05-4	5,850	0	5,852
18	Cyclohexane	110-82-7	4,697	0	4,715
19	Ethylbenzene	100-41-4	4,534	15	4,625
20	1,2,4-Trimethylbenzene	95-63-6	3,481	0	3,693
21	Phenol	108-95-2	255	8	3,101
22	Isoprene	78-79-5	2,371	0	2,371
23	Formaldehyde	50-00-0	255	0	2,348
24	Formic acid	64-18-6	189	0	1,968
25	Naphthalene	91-20-3	1,414	1	1,500
26	Lead And Lead Compounds	N420	1	6	1,179
27	Certain glycol ethers	N230	11	0	1,122
28	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	1	0	1,095
29	Nickel And Nickel Compounds	N495	0	0	915
30	Dimethylamine	124-40-3	864	0	884
31	Cumene	98-82-8	580	0	586
32	Lead compounds	N420	0	0	430
33	Perfluorooctanoic acid	335-67-1	0	0	402
34	Polycyclic aromatic compounds	N590	353	15	369
35	Acrylonitrile	107-13-1	278	0	294
36	Propylene oxide	75-56-9	255	0	255
37	Styrene	100-42-5	110	0	110
38	Mercury compounds	N458	0	0	46
39	Acetaldehyde	75-07-0	45	0	45
40	Biphenyl	92-52-4	33	0	33
41	Manganese	7439-96-5	30	0	30
42	Chromium	7440-47-3	25	0	25
43	Chlorine	7782-50-5	25	0	25
44	Nickel	7440-02-0	24	0	24
45	Lead	7439-92-1	0	0	8
46	Mercury	7439-97-6	7	0	7
47	Benzo[g,h,i]perylene	191-24-2	0	5	5
48	Vanadium (except when contained in an alloy)	7440-62-2	0	0	3