Home > Analysis: 7820 Canal St, Houston, TX 77012

📊 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

7820 CANAL ST HOUSTON 77012

Building Size

3,628 sqft

Total structure area from HCAD building records.

Elevation

29.94 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: 19.94 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)

16.13 million lbs

Extremely High

2471.6x more than typical Houston property
≈ 806 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)

3.09 million lbs

Extremely High

641.6x 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)

13.03 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)	16,125,589 lbs	3,093,999 lbs	13,031,579 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	2,940,983 lbs	270,537 lbs	2,052,729 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Zinc compounds

View the full list of 71 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (71 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	13,016,167	13,016,167
2	Hydrogen cyanide	74-90-8	1,408,014	0	1,408,014
3	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	383,635	0	383,635
4	Ammonia	7664-41-7	336,948	8,000	344,948
5	Zinc compounds	N982	176,619	26	176,645
6	Xylene (mixed isomers)	1330-20-7	129,601	0	129,601
7	Ozone	10028-15-6	115,228	0	115,228
8	Toluene	108-88-3	102,312	17	102,329
9	Cyclohexane	110-82-7	80,271	0	80,271
10	n-Hexane	110-54-3	76,253	0	76,253
11	Benzene	71-43-2	60,181	10	60,191
12	Propylene	115-07-1	53,908	0	53,908
13	Hydrogen sulfide	7783-06-4	23,987	3,527	27,514
14	Ethylbenzene	100-41-4	20,678	50	20,729
15	1,2,4-Trimethylbenzene	95-63-6	17,333	0	17,333
16	Ethylene	74-85-1	16,593	0	16,593
17	Ethylene glycol	107-21-1	14,690	0	14,690
18	1,4-Dioxane	123-91-1	10,779	0	10,779
19	Carbon disulfide	75-15-0	8,908	0	8,908
20	1,3-Butadiene	106-99-0	8,275	0	8,275
21	Cyanide compounds	N106	5,934	45	5,979
22	Molybdenum trioxide	1313-27-5	5,795	0	5,795
23	Manganese	7439-96-5	5,230	357	5,587
24	Naphthalene	91-20-3	4,546	0	4,547
25	Phenol	108-95-2	1,635	1,804	3,439
26	Lead compounds	N420	3,073	6	3,079
27	Polycyclic aromatic compounds	N590	2,356	1	2,365
28	Styrene	100-42-5	2,274	0	2,275
29	Cumene	98-82-8	2,256	0	2,256
30	Copper compounds	N100	2,021	0	2,021
31	Phthalic anhydride	85-44-9	2,000	0	2,000
32	Lead And Lead Compounds	N420	1,755	16	1,772
33	Vinyl acetate	108-05-4	1,608	0	1,608
34	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	1,460	0	1,460
35	Carbonyl sulfide	463-58-1	1,451	0	1,451
36	Lead	7439-92-1	882	385	1,267
37	Nickel compounds	N495	664	489	1,153
38	Acetaldehyde	75-07-0	1,011	0	1,011
39	Phenanthrene	85-01-8	937	0	937
40	Methanol	67-56-1	932	0	932
41	Vanadium compounds	N770	144	509	653
42	1,1,1,2-Tetrachloroethane	630-20-6	434	0	434
43	Nitric acid	7697-37-2	397	0	397
44	Cresol (mixed isomers)	1319-77-3	232	0	232
45	Nickel And Nickel Compounds	N495	66	123	189
46	Cobalt compounds	N096	131	24	155
47	Dimethylamine	124-40-3	90	0	90
48	Chromium compounds (except for chromite ore mined in the Transvaal Region)	N090	76	0	76
49	Anthracene	120-12-7	44	0	44
50	Cobalt And Cobalt Compounds	N096	42	0	42
51	Nickel	7440-02-0	36	4	39
52	Antimony compounds	N010	38	0	38
53	Mercury compounds	N458	35	1	36
54	Allyl alcohol	107-18-6	34	0	34
55	Benzo[g,h,i]perylene	191-24-2	28	0	28
56	tert-Butyl alcohol	75-65-0	22	0	22
57	Methoxone sodium salt	3653-48-3	20	0	20
58	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	19	0	19
59	Triethylamine	121-44-8	17	0	17
60	Chromium	7440-47-3	3	12	15
61	Acrolein	107-02-8	13	0	13
62	Mercury And Mercury Compounds	N458	12	0	12
63	Copper And Copper Compounds	N100	10	0	10
64	Hydroquinone	123-31-9	9	0	9
65	Copper	7440-50-8	0	6	6
66	Diaminotoluene (mixed isomers)	25376-45-8	4	0	4
67	Pyridine	110-86-1	3	0	3
68	Chloroethane	75-00-3	2	0	2
69	p-Cresol	106-44-5	2	0	2
70	Trichloroethylene	79-01-6	1	0	1
71	2,4-Diaminotoluene	95-80-7	1	0	1

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), 1,4-Dioxane, Ethylene glycol, Hydrogen cyanide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 42 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (42 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	1,4-Dioxane	123-91-1	328	0	396,851
3	Ethylene glycol	107-21-1	5,094	0	177,549
4	Hydrogen cyanide	74-90-8	103,731	0	103,731
5	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	50,799	0	50,799
6	Ammonia	7664-41-7	28,219	1,027	29,363
7	Ozone	10028-15-6	25,701	0	25,701
8	Methanol	67-56-1	152	0	23,827
9	Zinc compounds	N982	9,014	0	20,571
10	Xylene (mixed isomers)	1330-20-7	14,849	0	14,853
11	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	6	0	11,416
12	Cyclohexane	110-82-7	7,486	0	7,486
13	Toluene	108-88-3	6,118	4	6,133
14	Benzene	71-43-2	4,935	4	4,940
15	Propylene	115-07-1	3,529	0	3,529
16	Lead And Lead Compounds	N420	288	7	2,186
17	Molybdenum trioxide	1313-27-5	1,804	0	1,804
18	1,2,4-Trimethylbenzene	95-63-6	1,449	0	1,449
19	Ethylbenzene	100-41-4	1,412	4	1,419
20	Carbonyl sulfide	463-58-1	1,041	0	1,041
21	1,3-Butadiene	106-99-0	734	0	734
22	Hydrogen sulfide	7783-06-4	715	0	718
23	Ethylene	74-85-1	620	0	620
24	n-Hexane	110-54-3	607	0	607
25	Carbon disulfide	75-15-0	484	0	484
26	Naphthalene	91-20-3	241	0	258
27	Cumene	98-82-8	241	0	241
28	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	221	0	221
29	1,1,1,2-Tetrachloroethane	630-20-6	212	0	212
30	Phenol	108-95-2	164	0	184
31	Styrene	100-42-5	159	0	159
32	Polycyclic aromatic compounds	N590	38	0	56
33	Cobalt And Cobalt Compounds	N096	42	0	42
34	Lead	7439-92-1	20	22	42
35	Phenanthrene	85-01-8	36	0	36
36	Dimethylamine	124-40-3	23	0	23
37	Anthracene	120-12-7	1	0	14
38	Mercury And Mercury Compounds	N458	8	0	8
39	Benzo[g,h,i]perylene	191-24-2	8	0	8
40	Vinyl acetate	108-05-4	5	0	5
41	Acetaldehyde	75-07-0	1	0	1
42	Cresol (mixed isomers)	1319-77-3	1	0	1