Home > Analysis: 110 Rockleigh Pl, Houston, TX 77017

📊 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

110 ROCKLEIGH PL HOUSTON 77017

Elevation

19.24 ft

Height above sea level from USGS data.

FEMA Flood Zone

High Risk - 1% annual chance with established base flood elevation

Overall Risk

Moderate

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

Moderate

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: 9.24 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.

This property is in a high-risk flood zone. Flood insurance is required for mortgages.
Consider flood mitigation measures like elevated utilities and flood vents.
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 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)

7.94 million lbs

Extremely High

1217.1x more than typical Houston property
≈ 397 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)

7.83 million lbs

Extremely High

1623.5x 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)

111 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)	7,940,692 lbs	7,829,134 lbs	111,215 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	720,727 lbs	594,865 lbs	15,486 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):

Styrene, Ammonia, Propylene, Hydrogen cyanide, 1,3-Butadiene

View the full list of 56 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (56 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Styrene	100-42-5	1,724,913	7,271	1,732,184
2	Ammonia	7664-41-7	1,447,039	29,897	1,476,936
3	Propylene	115-07-1	951,344	0	951,344
4	Hydrogen cyanide	74-90-8	818,552	0	818,552
5	1,3-Butadiene	106-99-0	452,685	1	452,686
6	n-Hexane	110-54-3	391,060	0	391,067
7	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	376,938	0	376,938
8	Ethylene	74-85-1	294,940	0	294,940
9	Methyl tert-butyl ether	1634-04-4	267,534	0	267,534
10	Xylene (mixed isomers)	1330-20-7	227,286	627	227,943
11	Hydrogen sulfide	7783-06-4	212,749	0	212,749
12	Benzene	71-43-2	203,267	457	203,735
13	Toluene	108-88-3	164,253	244	164,521
14	Diethanolamine	111-42-2	101,560	0	101,560
15	Methanol	67-56-1	59,808	39,325	99,134
16	Cyclohexane	110-82-7	52,502	0	52,511
17	Ethylbenzene	100-41-4	27,302	63	27,373
18	N,N-Dimethylformamide	68-12-2	22,161	88	22,249
19	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	21,954	21,954
20	tert-Butyl alcohol	75-65-0	15,278	0	15,278
21	Sodium nitrite	7632-00-0	0	9,470	9,470
22	Naphthalene	91-20-3	4,683	75	4,766
23	Polycyclic aromatic compounds	N590	2,865	525	3,591
24	1,2,4-Trimethylbenzene	95-63-6	3,058	0	3,072
25	Vinyl acetate	108-05-4	1,608	0	1,608
26	Cumene	98-82-8	1,572	0	1,574
27	Phenol	108-95-2	0	1,155	1,155
28	Acetaldehyde	75-07-0	1,011	0	1,011
29	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	999	0	999
30	Lead	7439-92-1	397	44	442
31	1,1,1,2-Tetrachloroethane	630-20-6	434	0	434
32	Biphenyl	92-52-4	345	0	364
33	Carbon disulfide	75-15-0	351	0	351
34	Chlorine	7782-50-5	120	0	120
35	Dimethylamine	124-40-3	90	0	90
36	Mercury	7439-97-6	77	0	77
37	Lead And Lead Compounds	N420	63	10	73
38	Vanadium compounds	N770	65	0	65
39	Isoprene	78-79-5	60	0	60
40	Boron trifluoride	7637-07-2	36	0	36
41	Allyl alcohol	107-18-6	34	0	34
42	Methoxone sodium salt	3653-48-3	20	0	20
43	Triethylamine	121-44-8	17	0	17
44	Acrolein	107-02-8	13	0	13
45	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	11	0	11
46	Ethylene glycol	107-21-1	1	0	10
47	Hydroquinone	123-31-9	9	0	9
48	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	8	0	8
49	Benzo[g,h,i]perylene	191-24-2	0	7	7
50	Mercury compounds	N458	3	1	4
51	Diaminotoluene (mixed isomers)	25376-45-8	4	0	4
52	Pyridine	110-86-1	3	0	3
53	Chloroethane	75-00-3	2	0	2
54	p-Cresol	106-44-5	2	0	2
55	Trichloroethylene	79-01-6	1	0	1
56	2,4-Diaminotoluene	95-80-7	1	0	1

Top chemicals released near this property (2024 only):

Styrene, Ammonia, Diethanolamine, Hydrogen cyanide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 43 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (43 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Styrene	100-42-5	130,778	291	131,070
2	Ammonia	7664-41-7	103,640	78	111,991
3	Diethanolamine	111-42-2	10,082	0	85,611
4	Hydrogen cyanide	74-90-8	73,728	0	73,728
5	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	50,698	0	50,698
6	n-Hexane	110-54-3	35,025	0	35,025
7	Propylene	115-07-1	34,316	0	34,316
8	Methyl tert-butyl ether	1634-04-4	18,336	0	31,624
9	1,3-Butadiene	106-99-0	30,971	0	30,971
10	Xylene (mixed isomers)	1330-20-7	26,533	10	26,557
11	Methanol	67-56-1	7,001	14,541	22,144
12	Ethylene	74-85-1	17,089	0	17,089
13	Benzene	71-43-2	15,436	110	16,025
14	Toluene	108-88-3	15,450	4	15,506
15	Hydrogen sulfide	7783-06-4	14,014	0	14,014
16	Ethylene glycol	107-21-1	0	0	7,019
17	Cyclohexane	110-82-7	4,048	0	4,048
18	Phenol	108-95-2	0	8	2,825
19	Ethylbenzene	100-41-4	2,657	1	2,665
20	N,N-Dimethylformamide	68-12-2	1,641	0	1,842
21	Certain glycol ethers	N230	0	0	1,111
22	tert-Butyl alcohol	75-65-0	1,021	0	1,021
23	Nickel And Nickel Compounds	N495	0	0	915
24	Naphthalene	91-20-3	754	7	818
25	Polycyclic aromatic compounds	N590	354	55	409
26	Sodium nitrite	7632-00-0	0	371	371
27	Cumene	98-82-8	284	0	284
28	Carbon disulfide	75-15-0	241	0	241
29	1,2,4-Trimethylbenzene	95-63-6	222	0	222
30	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	221	0	221
31	1,1,1,2-Tetrachloroethane	630-20-6	212	0	212
32	Lead And Lead Compounds	N420	31	5	36
33	Biphenyl	92-52-4	33	0	33
34	Dimethylamine	124-40-3	23	0	23
35	Isoprene	78-79-5	8	0	8
36	Lead	7439-92-1	0	0	8
37	Mercury	7439-97-6	7	0	7
38	Benzo[g,h,i]perylene	191-24-2	0	5	5
39	Vinyl acetate	108-05-4	5	0	5
40	Vanadium (except when contained in an alloy)	7440-62-2	0	0	3
41	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	2	0	3
42	Boron trifluoride	7637-07-2	1	0	1
43	Acetaldehyde	75-07-0	1	0	1