Home > Analysis: 1819 Allen Genoa Rd, Pasadena, TX 77502

📊 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

1819 ALLEN GENOA RD PASADENA 77502

Elevation

28.48 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: 18.48 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 89% 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)

6.56 million lbs

Extremely High

1005.9x more than typical Houston property
≈ 328 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)

6.49 million lbs

Extremely High

1346.8x 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)

68 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)	6,563,101 lbs	6,494,609 lbs	68,072 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	594,607 lbs	497,090 lbs	940 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 89% 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):

Styrene, Ammonia, Propylene, Hydrogen cyanide, n-Hexane

View the full list of 31 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (31 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Styrene	100-42-5	1,724,969	7,271	1,732,240
2	Ammonia	7664-41-7	1,115,926	26,223	1,142,148
3	Propylene	115-07-1	936,912	0	936,912
4	Hydrogen cyanide	74-90-8	818,552	0	818,552
5	n-Hexane	110-54-3	395,710	0	395,717
6	Ethylene	74-85-1	292,319	0	292,319
7	Xylene (mixed isomers)	1330-20-7	231,926	627	232,583
8	Hydrogen sulfide	7783-06-4	206,443	0	206,443
9	Benzene	71-43-2	205,652	457	206,120
10	1,3-Butadiene	106-99-0	197,106	1	197,107
11	Toluene	108-88-3	169,716	244	169,984
12	Diethanolamine	111-42-2	101,560	0	101,560
13	Cyclohexane	110-82-7	52,501	0	52,510
14	Ethylbenzene	100-41-4	28,148	63	28,219
15	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	21,954	21,954
16	Sodium nitrite	7632-00-0	0	9,470	9,470
17	Naphthalene	91-20-3	4,762	75	4,845
18	Polycyclic aromatic compounds	N590	2,949	526	3,753
19	1,2,4-Trimethylbenzene	95-63-6	3,713	0	3,727
20	Methanol	67-56-1	3,468	0	3,468
21	Cumene	98-82-8	1,656	0	1,658
22	Phenol	108-95-2	0	1,155	1,155
23	Biphenyl	92-52-4	345	0	364
24	Chlorine	7782-50-5	120	0	120
25	Mercury	7439-97-6	77	0	77
26	Isoprene	78-79-5	60	0	60
27	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	11	0	11
28	Ethylene glycol	107-21-1	0	0	9
29	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	8	0	8
30	Benzo[g,h,i]perylene	191-24-2	0	7	7
31	Lead compounds	N420	1	0	1

Top chemicals released near this property (2024 only):

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

View the full list of 31 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (31 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Styrene	100-42-5	130,785	291	131,077
2	Ammonia	7664-41-7	103,533	78	111,884
3	Diethanolamine	111-42-2	10,082	0	85,611
4	Hydrogen cyanide	74-90-8	73,728	0	73,728
5	n-Hexane	110-54-3	35,588	0	35,588
6	Propylene	115-07-1	33,225	0	33,225
7	Xylene (mixed isomers)	1330-20-7	26,894	10	26,920
8	Ethylene	74-85-1	16,725	0	16,725
9	Benzene	71-43-2	15,721	110	16,310
10	Toluene	108-88-3	16,108	4	16,165
11	Hydrogen sulfide	7783-06-4	13,422	0	13,422
12	1,3-Butadiene	106-99-0	12,735	0	12,735
13	Ethylene glycol	107-21-1	0	0	7,019
14	Cyclohexane	110-82-7	4,048	0	4,048
15	Phenol	108-95-2	0	8	2,825
16	Ethylbenzene	100-41-4	2,726	1	2,734
17	Certain glycol ethers	N230	0	0	1,111
18	Nickel And Nickel Compounds	N495	0	0	915
19	Naphthalene	91-20-3	763	7	831
20	Polycyclic aromatic compounds	N590	360	55	427
21	Sodium nitrite	7632-00-0	0	371	371
22	1,2,4-Trimethylbenzene	95-63-6	305	0	308
23	Cumene	98-82-8	293	0	293
24	Lead compounds	N420	0	0	269
25	Biphenyl	92-52-4	33	0	33
26	Isoprene	78-79-5	8	0	8
27	Lead	7439-92-1	0	0	8
28	Mercury	7439-97-6	7	0	7
29	Benzo[g,h,i]perylene	191-24-2	0	5	5
30	Vanadium (except when contained in an alloy)	7440-62-2	0	0	3
31	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	2	0	3