Home > Analysis: 111 Foster St, Baytown, TX 77520 03/26/2025

📊 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

111 FOSTER ST BAYTOWN 77520

Building Size

1,717 sqft

Total structure area from HCAD building records.

Elevation

21.15 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: 11.15 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)

17.38 million lbs

Extremely High

2663.7x more than typical Houston property
≈ 869 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)

15.61 million lbs

Extremely High

3237.2x 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)

1.77 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)	17,378,988 lbs	15,611,034 lbs	1,767,954 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	1,557,257 lbs	1,353,376 lbs	178,545 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):

Propylene, Ethylene, n-Hexane, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution)

View the full list of 49 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (49 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Propylene	115-07-1	3,698,374	0	3,698,374
2	Ethylene	74-85-1	3,074,500	0	3,074,500
3	n-Hexane	110-54-3	1,748,246	10	1,748,256
4	Ammonia	7664-41-7	1,520,514	89,839	1,610,353
5	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	1,375,533	1,375,533
6	Xylene (mixed isomers)	1330-20-7	1,121,066	5,505	1,126,570
7	Chloromethane	74-87-3	1,068,482	652	1,069,134
8	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	608,872	0	608,872
9	1,3-Butadiene	106-99-0	556,795	5	556,800
10	Toluene	108-88-3	412,200	3,946	416,146
11	Benzene	71-43-2	385,683	717	386,400
12	Formaldehyde	50-00-0	327,476	0	327,476
13	Cyclohexane	110-82-7	260,225	357	260,582
14	tert-Butyl alcohol	75-65-0	240,653	0	240,653
15	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	6,706	157,867	164,573
16	Ethylbenzene	100-41-4	124,685	660	125,345
17	Zinc compounds	N982	48,034	58,043	106,077
18	Isoprene	78-79-5	91,358	1,154	92,512
19	Methanol	67-56-1	20,805	64,440	85,245
20	Naphthalene	91-20-3	60,611	1,896	62,506
21	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	59,626	0	59,626
22	Styrene	100-42-5	30,747	10	30,758
23	Chlorodifluoromethane (HCFC-22)	75-45-6	29,802	0	29,802
24	Nickel And Nickel Compounds	N495	21,744	2,276	24,020
25	N,N-Dimethylformamide	68-12-2	22,560	0	22,560
26	Hydrogen sulfide	7783-06-4	19,647	45	19,692
27	Nickel compounds	N495	10,428	1,700	12,128
28	Phenol	108-95-2	11,008	540	11,548
29	Cumene	98-82-8	11,359	88	11,447
30	Polycyclic aromatic compounds	N590	4,088	0	4,088
31	1,2,4-Trimethylbenzene	95-63-6	3,884	0	3,884
32	Dicyclopentadiene	77-73-6	2,850	0	2,850
33	Lead And Lead Compounds	N420	1,995	835	2,830
34	Carbonyl sulfide	463-58-1	2,716	0	2,716
35	Lead compounds	N420	724	836	1,560
36	Mercury And Mercury Compounds	N458	1,026	1	1,027
37	Mercury compounds	N458	747	20	767
38	Hydrogen cyanide	74-90-8	4	389	393
39	Phenanthrene	85-01-8	329	0	329
40	Copper compounds	N100	60	250	310
41	Chlorine	7782-50-5	10	220	230
42	Methyl isobutyl ketone	108-10-1	120	38	158
43	Bromine	7726-95-6	135	0	135
44	Cyanide compounds	N106	20	83	103
45	Ethylene glycol	107-21-1	46	0	46
46	Anthracene	120-12-7	45	0	45
47	Biphenyl	92-52-4	20	0	20
48	Benzo[g,h,i]perylene	191-24-2	6	0	6
49	Cobalt And Cobalt Compounds	N096	2	0	2

Top chemicals released near this property (2024 only):

Propylene, Ethylene, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Chloromethane

View the full list of 35 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (35 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Propylene	115-07-1	296,464	0	296,464
2	Ethylene	74-85-1	255,000	0	255,000
3	Ammonia	7664-41-7	172,624	11,227	183,851
4	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	154,064	154,064
5	Chloromethane	74-87-3	153,400	3	153,403
6	n-Hexane	110-54-3	120,852	0	120,852
7	Xylene (mixed isomers)	1330-20-7	66,029	2,603	69,856
8	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	61,009	0	61,009
9	Toluene	108-88-3	42,487	1,473	51,292
10	1,3-Butadiene	106-99-0	37,744	0	37,744
11	Formaldehyde	50-00-0	32,750	0	32,750
12	Benzene	71-43-2	25,844	157	26,524
13	Cyclohexane	110-82-7	26,338	113	26,451
14	tert-Butyl alcohol	75-65-0	18,770	0	18,770
15	Naphthalene	91-20-3	3,763	131	14,304
16	Ethylbenzene	100-41-4	10,320	124	11,080
17	Methanol	67-56-1	698	8,100	8,798
18	Isoprene	78-79-5	6,528	131	6,659
19	N,N-Dimethylformamide	68-12-2	5,800	0	5,800
20	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	5,585	0	5,585
21	Nickel And Nickel Compounds	N495	3,661	331	4,397
22	Styrene	100-42-5	3,073	0	3,076
23	Phenanthrene	85-01-8	29	0	2,306
24	Lead And Lead Compounds	N420	340	56	1,411
25	Phenol	108-95-2	1,231	10	1,241
26	Mercury And Mercury Compounds	N458	191	0	1,180
27	Cumene	98-82-8	1,101	22	1,124
28	Hydrogen sulfide	7783-06-4	940	0	1,023
29	Polycyclic aromatic compounds	N590	496	0	718
30	Benzo[g,h,i]perylene	191-24-2	1	0	210
31	1,2,4-Trimethylbenzene	95-63-6	209	0	209
32	Chlorodifluoromethane (HCFC-22)	75-45-6	78	0	78
33	Carbonyl sulfide	463-58-1	16	0	16
34	Anthracene	120-12-7	2	0	9
35	Ethylene glycol	107-21-1	5	0	5