Home > Analysis: 1117 16th St, Galena Park, TX 77547

📊 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

1117 16TH ST GALENA PARK 77547

Building Size

930 sqft

Total structure area from HCAD building records.

Elevation

24.99 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: 14.99 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)

2.94 million lbs

Extremely High

450.4x more than typical Houston property
≈ 147 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)

2.93 million lbs

Extremely High

607.1x 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)

1 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)	2,938,781 lbs	2,927,638 lbs	1,480 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	115,146 lbs	92,850 lbs	82 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):

n-Hexane, Propylene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ethylene, 1,3-Butadiene

View the full list of 39 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (39 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	n-Hexane	110-54-3	760,001	9	760,493
2	Propylene	115-07-1	272,238	0	272,238
3	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	250,113	0	250,113
4	Ethylene	74-85-1	243,909	0	243,909
5	1,3-Butadiene	106-99-0	232,089	0	232,089
6	Xylene (mixed isomers)	1330-20-7	212,239	114	214,754
7	Hydrogen cyanide	74-90-8	213,734	0	213,734
8	n-Butyl alcohol	71-36-3	137,606	0	137,606
9	Toluene	108-88-3	127,206	33	128,183
10	Benzene	71-43-2	94,034	29	94,635
11	Ammonia	7664-41-7	87,820	0	87,820
12	Methanol	67-56-1	65,798	0	65,798
13	Hydrogen sulfide	7783-06-4	37,772	0	37,773
14	Ethylbenzene	100-41-4	33,303	55	33,987
15	Propionaldehyde	123-38-6	31,241	0	31,241
16	Cyclohexane	110-82-7	28,736	0	29,496
17	Butyraldehyde	123-72-8	22,150	0	22,150
18	Naphthalene	91-20-3	15,386	0	16,713
19	Dicyclopentadiene	77-73-6	14,013	0	14,013
20	Isoprene	78-79-5	13,272	0	13,272
21	1,2,4-Trimethylbenzene	95-63-6	10,135	0	10,610
22	Cumene	98-82-8	7,282	0	7,469
23	Biphenyl	92-52-4	4,816	0	5,138
24	Manganese	7439-96-5	4,228	0	4,228
25	Isobutyraldehyde	78-84-2	4,080	0	4,080
26	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	3,066	0	3,066
27	Zinc compounds	N982	219	1,181	2,891
28	Hydrogen fluoride	7664-39-3	229	0	299
29	Chlorine	7782-50-5	268	0	268
30	Lead	7439-92-1	229	1	230
31	Mercury compounds	N458	165	1	166
32	Mercury And Mercury Compounds	N458	97	0	97
33	Lead compounds	N420	7	51	58
34	Polycyclic aromatic compounds	N590	45	0	45
35	Mercury	7439-97-6	42	0	42
36	Nickel	7440-02-0	35	0	35
37	Anthracene	120-12-7	31	0	31
38	Lead And Lead Compounds	N420	2	6	8
39	Benzo[g,h,i]perylene	191-24-2	3	0	3

Top chemicals released near this property (2024 only):

1,3-Butadiene, Zinc compounds, Ethylene, n-Hexane, Xylene (mixed isomers)

View the full list of 20 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (20 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	1,3-Butadiene	106-99-0	33,331	0	33,331
2	Zinc compounds	N982	22	32	19,978
3	Ethylene	74-85-1	14,987	0	14,987
4	n-Hexane	110-54-3	9,223	0	9,327
5	Xylene (mixed isomers)	1330-20-7	8,330	18	8,725
6	Ammonia	7664-41-7	8,151	0	8,184
7	Toluene	108-88-3	5,576	10	5,723
8	Benzene	71-43-2	4,710	4	4,828
9	Isoprene	78-79-5	2,371	0	2,371
10	Ethylbenzene	100-41-4	1,386	12	1,473
11	1,2,4-Trimethylbenzene	95-63-6	1,076	0	1,285
12	Propylene	115-07-1	1,202	0	1,202
13	Lead And Lead Compounds	N420	0	5	1,192
14	Hydrogen sulfide	7783-06-4	923	0	923
15	Naphthalene	91-20-3	607	0	631
16	Cyclohexane	110-82-7	417	0	435
17	Cumene	98-82-8	263	0	269
18	Lead	7439-92-1	228	1	234
19	Chlorine	7782-50-5	25	0	25
20	Mercury And Mercury Compounds	N458	21	0	23