Home > Analysis: 1730 Roaring Springs Ln, Pasadena, TX 77586 02/20/2025

📊 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

1730 ROARING SPRINGS LN SEABROOK 77586

Building Size

2,895 sqft

Total structure area from HCAD building records.

Elevation

11.38 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)

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: 1.38 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 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)

3.44 million lbs

Extremely High

526.9x more than typical Houston property
≈ 172 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)

3.42 million lbs

Extremely High

709.7x 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)

15 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)	3,437,734 lbs	3,422,488 lbs	14,823 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	1,696,768 lbs	315,105 lbs	2,140 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):

tert-Butyl alcohol, Propylene, Methanol, Toluene, Acrylic acid

View the full list of 74 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (74 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	tert-Butyl alcohol	75-65-0	750,524	0	750,524
2	Propylene	115-07-1	571,159	0	571,159
3	Methanol	67-56-1	308,012	0	308,012
4	Toluene	108-88-3	295,351	0	295,351
5	Acrylic acid	79-10-7	248,318	0	248,318
6	Propylene oxide	75-56-9	214,725	0	214,725
7	n-Hexane	110-54-3	188,310	0	188,310
8	Ethylene	74-85-1	163,241	0	163,241
9	Ammonia	7664-41-7	158,421	0	158,421
10	Titanium tetrachloride	7550-45-0	108,195	0	108,195
11	1,3-Butadiene	106-99-0	90,529	0	90,529
12	Methyl methacrylate	80-62-6	59,716	0	59,988
13	Molybdenum trioxide	1313-27-5	51,068	0	51,068
14	Ethylene glycol	107-21-1	38,278	0	38,278
15	Isoprene	78-79-5	31,965	0	31,965
16	Dicyclopentadiene	77-73-6	20,009	0	20,009
17	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	15,293	0	15,293
18	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	45	14,147	14,192
19	Benzene	71-43-2	13,808	0	13,808
20	n-Butyl alcohol	71-36-3	12,423	0	12,423
21	Xylene (mixed isomers)	1330-20-7	12,207	0	12,207
22	Epichlorohydrin	106-89-8	8,442	0	8,442
23	Trade Secret	TRD SECRT	5,905	88	5,993
24	Dibutyl phthalate	84-74-2	5,792	0	5,792
25	Dimethylamine	124-40-3	5,764	0	5,764
26	Maleic anhydride	108-31-6	5,267	0	5,267
27	Formic acid	64-18-6	4,888	0	4,888
28	Naphthalene	91-20-3	4,659	0	4,659
29	Propyleneimine	75-55-8	3,701	0	3,701
30	Vanadium compounds	N770	3,122	0	3,137
31	Zinc compounds	N982	2,389	346	2,736
32	Acetonitrile	75-05-8	2,727	0	2,727
33	Formaldehyde	50-00-0	2,599	0	2,599
34	Styrene	100-42-5	2,418	0	2,549
35	Nickel And Nickel Compounds	N495	2,238	75	2,313
36	Vanadium (except when contained in an alloy)	7440-62-2	1,691	0	1,691
37	Nickel compounds	N495	1,389	21	1,410
38	Ethylene oxide	75-21-8	1,298	0	1,298
39	o-Xylene	95-47-6	815	0	815
40	Cobalt And Cobalt Compounds	N096	741	0	741
41	Nitric acid	7697-37-2	637	0	637
42	Chlorobenzene	108-90-7	583	0	583
43	Acetaldehyde	75-07-0	504	0	504
44	Cobalt compounds	N096	454	0	454
45	Acrolein	107-02-8	402	0	402
46	Cumene	98-82-8	369	0	369
47	Hydroquinone	123-31-9	355	0	355
48	Diethanolamine	111-42-2	308	0	308
49	Phosphorus (yellow or white)	12185-10-3	250	0	250
50	Di(2-ethylhexyl) phthalate	117-81-7	222	0	222
51	Butyraldehyde	123-72-8	186	0	186
52	Antimony And Antimony Compounds	N010	85	77	161
53	4,4'-Isopropylidenediphenol	80-05-7	141	0	141
54	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	102	14	116
55	Acrylonitrile	107-13-1	85	0	85
56	Ethylbenzene	100-41-4	78	0	78
57	Antimony compounds	N010	44	25	69
58	Lead And Lead Compounds	N420	33	3	37
59	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	30	4	34
60	Sodium nitrite	7632-00-0	33	0	33
61	Phthalic anhydride	85-44-9	27	0	27
62	Zinc (fume or dust)	7440-66-6	26	0	26
63	Lead compounds	N420	17	1	18
64	Copper compounds	N100	0	18	18
65	1,2,4-Trimethylbenzene	95-63-6	18	0	18
66	Triethylamine	121-44-8	10	0	15
67	Cadmium compounds	N078	11	0	11
68	Pyridine	110-86-1	10	0	10
69	Allyl alcohol	107-18-6	10	0	10
70	Chromium	7440-47-3	7	2	9
71	Methyl acrylate	96-33-3	6	0	6
72	Lead	7439-92-1	2	0	2
73	Biphenyl	92-52-4	2	0	2
74	N-Methyl-2-pyrrolidone	872-50-4	1	0	1

Top chemicals released near this property (2024 only):

tert-Butyl alcohol, Molybdenum trioxide, Methanol, Acrylic acid, Vanadium (except when contained in an alloy)

View the full list of 48 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (48 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	tert-Butyl alcohol	75-65-0	101,671	0	635,087
2	Molybdenum trioxide	1313-27-5	4,957	0	227,922
3	Methanol	67-56-1	9,197	0	200,510
4	Acrylic acid	79-10-7	20,902	0	124,130
5	Vanadium (except when contained in an alloy)	7440-62-2	170	0	86,403
6	Toluene	108-88-3	26,332	0	67,506
7	Ethylene glycol	107-21-1	3,162	0	61,223
8	Propylene	115-07-1	39,146	0	39,522
9	Vanadium compounds	N770	67	0	39,269
10	Cobalt And Cobalt Compounds	N096	100	0	37,290
11	Propylene oxide	75-56-9	15,147	0	33,169
12	Nickel And Nickel Compounds	N495	341	26	32,206
13	n-Hexane	110-54-3	18,926	0	18,926
14	Ethylene	74-85-1	15,549	0	15,549
15	Dicyclopentadiene	77-73-6	2,368	0	14,402
16	Ammonia	7664-41-7	12,667	0	12,769
17	Methyl methacrylate	80-62-6	12,306	0	12,306
18	Titanium tetrachloride	7550-45-0	10,755	0	10,755
19	Isoprene	78-79-5	10,184	0	10,184
20	1,3-Butadiene	106-99-0	3,263	0	3,263
21	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	2,038	2,230
22	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	1,840	0	1,840
23	Xylene (mixed isomers)	1330-20-7	223	0	1,395
24	Formic acid	64-18-6	175	0	1,197
25	Maleic anhydride	108-31-6	1,173	0	1,173
26	Dibutyl phthalate	84-74-2	496	0	1,073
27	Benzene	71-43-2	1,049	0	1,049
28	Formaldehyde	50-00-0	151	0	672
29	Epichlorohydrin	106-89-8	643	0	643
30	Nitric acid	7697-37-2	633	0	633
31	Styrene	100-42-5	586	0	586
32	Trade Secret	TRD SECRT	0	46	581
33	Naphthalene	91-20-3	303	0	303
34	Di(2-ethylhexyl) phthalate	117-81-7	222	0	222
35	Hydroquinone	123-31-9	23	0	185
36	Ethylene oxide	75-21-8	145	0	146
37	4,4'-Isopropylidenediphenol	80-05-7	1	0	146
38	Chlorobenzene	108-90-7	100	0	100
39	Antimony And Antimony Compounds	N010	26	19	62
40	Acrolein	107-02-8	28	0	38
41	Zinc compounds	N982	13	10	33
42	Propyleneimine	75-55-8	32	0	32
43	Phthalic anhydride	85-44-9	14	0	14
44	Zinc (fume or dust)	7440-66-6	9	0	9
45	Chromium	7440-47-3	4	1	5
46	Acrylonitrile	107-13-1	4	0	4
47	Lead And Lead Compounds	N420	2	1	3
48	Methyl acrylate	96-33-3	2	0	2