Home > Analysis: 406 Axilda St, Houston, TX 77017 05/19/2025

📊 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

406 AXILDA ST HOUSTON 77017

Building Size

1,712 sqft

Total structure area from HCAD building records.

Elevation

26.81 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: 16.81 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 94% 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)

22.92 million lbs

Extremely High

3513.0x more than typical Houston property
≈ 1.1K 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)

9.77 million lbs

Extremely High

2026.9x 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)

13.14 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)	22,919,623 lbs	9,774,563 lbs	13,143,227 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	2,918,532 lbs	738,286 lbs	2,068,210 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 94% 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Styrene, Ammonia, Propylene

View the full list of 58 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (58 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	13,038,121	13,038,121
2	Hydrogen cyanide	74-90-8	2,226,566	0	2,226,566
3	Styrene	100-42-5	1,727,081	7,271	1,734,352
4	Ammonia	7664-41-7	1,680,518	37,897	1,718,415
5	Propylene	115-07-1	1,004,798	0	1,004,798
6	n-Hexane	110-54-3	471,963	0	471,970
7	1,3-Butadiene	106-99-0	460,958	1	460,959
8	Ethylene	74-85-1	311,533	0	311,533
9	Xylene (mixed isomers)	1330-20-7	295,984	627	296,641
10	Methyl tert-butyl ether	1634-04-4	267,534	0	267,534
11	Benzene	71-43-2	265,830	467	266,308
12	Toluene	108-88-3	264,062	261	264,347
13	Hydrogen sulfide	7783-06-4	224,124	3,527	227,651
14	Cyclohexane	110-82-7	132,771	0	132,780
15	Ozone	10028-15-6	115,228	0	115,228
16	Diethanolamine	111-42-2	102,160	0	102,160
17	Methanol	67-56-1	58,994	39,325	98,320
18	Ethylbenzene	100-41-4	48,609	113	48,730
19	N,N-Dimethylformamide	68-12-2	22,161	88	22,249
20	1,2,4-Trimethylbenzene	95-63-6	21,046	0	21,060
21	tert-Butyl alcohol	75-65-0	15,270	0	15,270
22	Sodium nitrite	7632-00-0	0	9,470	9,470
23	Naphthalene	91-20-3	9,191	75	9,274
24	Carbon disulfide	75-15-0	8,557	0	8,557
25	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	6,697	0	6,697
26	Cyanide compounds	N106	5,934	45	5,979
27	Molybdenum trioxide	1313-27-5	5,795	0	5,795
28	Ethylene glycol	107-21-1	5,255	0	5,264
29	Polycyclic aromatic compounds	N590	4,498	525	5,225
30	Phenol	108-95-2	1,635	2,959	4,594
31	Cumene	98-82-8	3,912	0	3,914
32	Zinc compounds	N982	219	1,116	2,826
33	Carbonyl sulfide	463-58-1	1,451	0	1,451
34	Nickel compounds	N495	654	489	1,143
35	Phenanthrene	85-01-8	937	0	937
36	Vanadium compounds	N770	79	509	588
37	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	461	0	461
38	Lead	7439-92-1	260	126	386
39	Biphenyl	92-52-4	345	0	364
40	Cresol (mixed isomers)	1319-77-3	232	0	232
41	Mercury compounds	N458	197	1	199
42	Nickel And Nickel Compounds	N495	66	123	189
43	Cobalt compounds	N096	131	24	155
44	Lead And Lead Compounds	N420	142	7	149
45	Chlorine	7782-50-5	120	0	120
46	Mercury And Mercury Compounds	N458	109	0	109
47	Lead compounds	N420	48	52	100
48	Certain glycol ethers	N230	80	0	80
49	Mercury	7439-97-6	77	0	77
50	Isoprene	78-79-5	60	0	60
51	Anthracene	120-12-7	44	0	44
52	Cobalt And Cobalt Compounds	N096	42	0	42
53	C.I. Food Red 15	81-88-9	40	0	40
54	Antimony compounds	N010	38	0	38
55	Boron trifluoride	7637-07-2	36	0	36
56	Benzo[g,h,i]perylene	191-24-2	13	7	20
57	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	11	0	11
58	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	8	0	8

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Ammonia, Styrene, Diethanolamine

View the full list of 49 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (49 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	2,051,661	2,051,661
2	Hydrogen cyanide	74-90-8	177,459	0	177,459
3	Ammonia	7664-41-7	131,645	1,105	141,140
4	Styrene	100-42-5	130,944	291	131,236
5	Diethanolamine	111-42-2	10,092	0	85,621
6	Propylene	115-07-1	37,845	0	37,845
7	n-Hexane	110-54-3	36,195	0	36,195
8	1,3-Butadiene	106-99-0	31,705	0	31,705
9	Methyl tert-butyl ether	1634-04-4	18,336	0	31,624
10	Xylene (mixed isomers)	1330-20-7	31,247	10	31,277
11	Ozone	10028-15-6	25,701	0	25,701
12	Toluene	108-88-3	22,226	8	22,297
13	Methanol	67-56-1	6,850	14,541	21,994
14	Benzene	71-43-2	20,656	114	21,249
15	Ethylene	74-85-1	17,709	0	17,709
16	Hydrogen sulfide	7783-06-4	13,545	0	13,548
17	Cyclohexane	110-82-7	11,534	0	11,534
18	Ethylene glycol	107-21-1	500	0	7,519
19	Ethylbenzene	100-41-4	4,138	5	4,153
20	Phenol	108-95-2	164	8	3,009
21	N,N-Dimethylformamide	68-12-2	1,641	0	1,842
22	Molybdenum trioxide	1313-27-5	1,804	0	1,804
23	1,2,4-Trimethylbenzene	95-63-6	1,754	0	1,757
24	Zinc compounds	N982	22	27	1,223
25	Certain glycol ethers	N230	10	0	1,121
26	Naphthalene	91-20-3	1,004	7	1,089
27	Carbonyl sulfide	463-58-1	1,041	0	1,041
28	tert-Butyl alcohol	75-65-0	1,021	0	1,021
29	Nickel And Nickel Compounds	N495	0	0	915
30	Cumene	98-82-8	534	0	534
31	Polycyclic aromatic compounds	N590	355	55	410
32	Sodium nitrite	7632-00-0	0	371	371
33	Lead compounds	N420	0	0	269
34	Carbon disulfide	75-15-0	243	0	243
35	Lead And Lead Compounds	N420	96	2	113
36	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	101	0	101
37	Cobalt And Cobalt Compounds	N096	42	0	42
38	Phenanthrene	85-01-8	36	0	36
39	Biphenyl	92-52-4	33	0	33
40	Mercury And Mercury Compounds	N458	29	0	31
41	Anthracene	120-12-7	1	0	14
42	Benzo[g,h,i]perylene	191-24-2	8	5	13
43	Lead	7439-92-1	0	0	8
44	Isoprene	78-79-5	8	0	8
45	Mercury	7439-97-6	7	0	7
46	Vanadium (except when contained in an alloy)	7440-62-2	0	0	3
47	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	2	0	3
48	Boron trifluoride	7637-07-2	1	0	1
49	Cresol (mixed isomers)	1319-77-3	1	0	1