📊 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

217 W 2ND ST DEER PARK 77536

Building Size

2,059 sqft

Total structure area from HCAD building records.

Elevation

26.7 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: 16.7 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 million lbs

Extremely High

3372.5x 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)

13.32 million lbs

Extremely High

2762.2x 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)

8.68 million lbs

Extremely High

Most Houston properties have none nearby

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)	22,003,352 lbs	13,320,039 lbs	8,683,314 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	2,470,103 lbs	1,461,959 lbs	337,281 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), Ethylene, Ammonia, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), 1,3-Butadiene

View the full list of 107 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (107 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	7 lbs	8,239,283 lbs	8,239,290 lbs
2	Ethylene	74-85-1	1,659,814 lbs	0 lbs	1,659,814 lbs
3	Ammonia	7664-41-7	1,086,871 lbs	34,978 lbs	1,121,848 lbs
4	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	1,081,942 lbs	0 lbs	1,081,942 lbs
5	1,3-Butadiene	106-99-0	1,021,400 lbs	45 lbs	1,021,445 lbs
6	Propylene	115-07-1	1,020,062 lbs	0 lbs	1,020,062 lbs
7	Cumene	98-82-8	934,278 lbs	883 lbs	935,160 lbs
8	Methanol	67-56-1	705,767 lbs	141,201 lbs	846,968 lbs
9	Methyl methacrylate	80-62-6	656,896 lbs	0 lbs	656,896 lbs
10	Phenol	108-95-2	634,156 lbs	1,108 lbs	635,264 lbs
11	Toluene	108-88-3	514,838 lbs	199 lbs	515,037 lbs
12	Benzene	71-43-2	434,346 lbs	242 lbs	434,588 lbs
13	Hydrogen cyanide	74-90-8	412,928 lbs	4,587 lbs	417,515 lbs
14	Vinyl chloride	75-01-4	333,460 lbs	59 lbs	333,519 lbs
15	Xylene (mixed isomers)	1330-20-7	255,366 lbs	179 lbs	255,545 lbs
16	Butyl acrylate	141-32-2	246,385 lbs	0 lbs	246,385 lbs
17	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	242,459 lbs	0 lbs	242,459 lbs
18	Acetophenone	98-86-2	213,206 lbs	5,107 lbs	218,312 lbs
19	Hydrogen sulfide	7783-06-4	211,383 lbs	2,545 lbs	213,928 lbs
20	n-Butyl alcohol	71-36-3	196,351 lbs	0 lbs	196,351 lbs
21	Acetaldehyde	75-07-0	176,487 lbs	5,354 lbs	181,841 lbs
22	n-Hexane	110-54-3	173,420 lbs	10 lbs	173,430 lbs
23	Acrylic acid	79-10-7	127,984 lbs	0 lbs	127,984 lbs
24	4,4'-Isopropylidenediphenol	80-05-7	125,700 lbs	0 lbs	125,700 lbs
25	1,2-Dichloroethane	107-06-2	125,688 lbs	0 lbs	125,688 lbs
26	Epichlorohydrin	106-89-8	121,011 lbs	3,811 lbs	124,822 lbs
27	Sodium nitrite	7632-00-0	0 lbs	102,300 lbs	102,300 lbs
28	Acetonitrile	75-05-8	83,752 lbs	12,219 lbs	95,971 lbs
29	Ethylbenzene	100-41-4	73,430 lbs	222 lbs	73,652 lbs
30	Isoprene	78-79-5	69,617 lbs	137 lbs	69,754 lbs
31	Zinc compounds	N982	952 lbs	62,059 lbs	63,011 lbs
32	Propylene oxide	75-56-9	53,747 lbs	0 lbs	53,747 lbs
33	Ethylene glycol	107-21-1	31,251 lbs	9,387 lbs	40,638 lbs
34	Ethyl acrylate	140-88-5	36,082 lbs	0 lbs	36,082 lbs
35	Diethanolamine	111-42-2	35,781 lbs	0 lbs	35,781 lbs
36	Formaldehyde	50-00-0	27,949 lbs	0 lbs	27,949 lbs
37	Naphthalene	91-20-3	21,426 lbs	206 lbs	21,632 lbs
38	Dichloromethane	75-09-2	19,581 lbs	39 lbs	19,620 lbs
39	Methyl isobutyl ketone	108-10-1	17,924 lbs	2 lbs	17,926 lbs
40	Copper compounds	N100	0 lbs	13,984 lbs	13,984 lbs
41	Cyclohexane	110-82-7	13,253 lbs	284 lbs	13,537 lbs
42	Maleic anhydride	108-31-6	12,243 lbs	0 lbs	12,243 lbs
43	Chlorine	7782-50-5	11,978 lbs	0 lbs	11,978 lbs
44	Cumene hydroperoxide	80-15-9	11,006 lbs	0 lbs	11,006 lbs
45	Cyanide compounds	N106	0 lbs	9,834 lbs	9,834 lbs
46	Trade Secret	TRD SECRT	9,705 lbs	0 lbs	9,705 lbs
47	Vinyl acetate	108-05-4	9,003 lbs	0 lbs	9,003 lbs
48	1,2,4-Trimethylbenzene	95-63-6	8,919 lbs	0 lbs	8,919 lbs
49	Dicyclopentadiene	77-73-6	8,670 lbs	0 lbs	8,670 lbs
50	2-Methyllactonitrile	75-86-5	8,411 lbs	0 lbs	8,411 lbs
51	Copper And Copper Compounds	N100	1 lbs	8,388 lbs	8,389 lbs
52	Allyl alcohol	107-18-6	7,427 lbs	626 lbs	8,053 lbs
53	sec-Butyl alcohol	78-92-2	1,946 lbs	5,600 lbs	7,546 lbs
54	Glycidol	556-52-5	2,841 lbs	4,410 lbs	7,251 lbs
55	Acrylonitrile	107-13-1	6,971 lbs	0 lbs	6,971 lbs
56	Manganese compounds	N450	137 lbs	5,037 lbs	5,174 lbs
57	Styrene	100-42-5	4,646 lbs	16 lbs	4,662 lbs
58	Tetrachloroethylene	127-18-4	4,241 lbs	176 lbs	4,417 lbs
59	Nickel compounds	N495	80 lbs	3,764 lbs	3,844 lbs
60	Formic acid	64-18-6	2,328 lbs	0 lbs	2,328 lbs
61	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	N040	0 lbs	1,936 lbs	1,936 lbs
62	Lead compounds	N420	509 lbs	1,376 lbs	1,886 lbs
63	Phenanthrene	85-01-8	1,547 lbs	159 lbs	1,706 lbs
64	1,1,2-Trichloroethane	79-00-5	1,537 lbs	0 lbs	1,537 lbs
65	Nonylphenol Ethoxylates	N535	1,381 lbs	0 lbs	1,381 lbs
66	Certain glycol ethers	N230	1,104 lbs	0 lbs	1,104 lbs
67	Bis(2-chloroethyl) ether	111-44-4	950 lbs	0 lbs	950 lbs
68	Polycyclic aromatic compounds	N590	576 lbs	130 lbs	782 lbs
69	Lead And Lead Compounds	N420	267 lbs	421 lbs	689 lbs
70	Chloroform	67-66-3	638 lbs	0 lbs	638 lbs
71	Anthracene	120-12-7	534 lbs	70 lbs	604 lbs
72	Trichloroethylene	79-01-6	603 lbs	0 lbs	603 lbs
73	Cresol (mixed isomers)	1319-77-3	430 lbs	146 lbs	576 lbs
74	Hydroquinone	123-31-9	388 lbs	0 lbs	388 lbs
75	Acrolein	107-02-8	326 lbs	0 lbs	326 lbs
76	Pentachloroethane	76-01-7	323 lbs	0 lbs	323 lbs
77	Mercury compounds	N458	105 lbs	212 lbs	317 lbs
78	Chloroethane	75-00-3	284 lbs	0 lbs	284 lbs
79	Mercury And Mercury Compounds	N458	36 lbs	195 lbs	230 lbs
80	1,1,2,2-Tetrachloroethane	79-34-5	219 lbs	0 lbs	219 lbs
81	Benzo[g,h,i]perylene	191-24-2	96 lbs	74 lbs	170 lbs
82	Cobalt compounds	N096	33 lbs	89 lbs	122 lbs
83	Barium And Barium Compounds	N040	0 lbs	99 lbs	99 lbs
84	Carbon disulfide	75-15-0	84 lbs	0 lbs	84 lbs
85	Chlorobenzene	108-90-7	77 lbs	0 lbs	77 lbs
86	1,2-Dichloroethylene	540-59-0	75 lbs	0 lbs	75 lbs
87	Nonylphenol	N530	61 lbs	0 lbs	61 lbs
88	Chloroprene	126-99-8	55 lbs	0 lbs	55 lbs
89	Nitric acid	7697-37-2	49 lbs	0 lbs	49 lbs
90	Methyl acrylate	96-33-3	47 lbs	0 lbs	47 lbs
91	Ethylidene dichloride	75-34-3	37 lbs	0 lbs	37 lbs
92	Cobalt And Cobalt Compounds	N096	12 lbs	24 lbs	36 lbs
93	Triethylamine	121-44-8	34 lbs	0 lbs	34 lbs
94	Chromium	7440-47-3	0 lbs	33 lbs	33 lbs
95	Nickel	7440-02-0	0 lbs	31 lbs	31 lbs
96	Dioxin and dioxin-like compounds	N150	8 lbs	23 lbs	31 lbs
97	Carbon tetrachloride	56-23-5	27 lbs	0 lbs	27 lbs
98	Diphenylamine	122-39-4	10 lbs	14 lbs	24 lbs
99	Hexachloroethane	67-72-1	16 lbs	0 lbs	16 lbs
100	Vinylidene chloride	75-35-4	15 lbs	0 lbs	15 lbs
101	Boron trifluoride	7637-07-2	11 lbs	0 lbs	11 lbs
102	Propionaldehyde	123-38-6	8 lbs	0 lbs	8 lbs
103	trans-1,4-Dichloro-2-butene	110-57-6	7 lbs	0 lbs	7 lbs
104	Diisocyanates	N120	6 lbs	0 lbs	6 lbs
105	Hexachlorobenzene	118-74-1	5 lbs	0 lbs	5 lbs
106	N-Methyl-2-pyrrolidone	872-50-4	3 lbs	0 lbs	3 lbs
107	Acetamide	60-35-5	2 lbs	0 lbs	2 lbs

Top chemicals released near this property (2024 only):

Ethylene, Methyl methacrylate, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene, Methanol

View the full list of 89 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (89 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Ethylene	74-85-1	439,952 lbs	0 lbs	439,952 lbs
2	Methyl methacrylate	80-62-6	60,017 lbs	0 lbs	414,676 lbs
3	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	277,377 lbs	277,377 lbs
4	Propylene	115-07-1	147,304 lbs	0 lbs	147,304 lbs
5	Methanol	67-56-1	42,771 lbs	27,510 lbs	140,452 lbs
6	Ammonia	7664-41-7	64,803 lbs	3,133 lbs	118,772 lbs
7	1,3-Butadiene	106-99-0	108,643 lbs	9 lbs	108,652 lbs
8	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	97,000 lbs	0 lbs	97,000 lbs
9	4,4'-Isopropylidenediphenol	80-05-7	10,300 lbs	0 lbs	89,800 lbs
10	Butyl acrylate	141-32-2	24,361 lbs	0 lbs	81,487 lbs
11	Cumene	98-82-8	59,702 lbs	31 lbs	59,733 lbs
12	Toluene	108-88-3	51,526 lbs	10 lbs	52,976 lbs
13	Phenol	108-95-2	40,343 lbs	254 lbs	42,761 lbs
14	Benzene	71-43-2	39,601 lbs	7 lbs	41,770 lbs
15	Hydrogen sulfide	7783-06-4	38,758 lbs	289 lbs	39,047 lbs
16	n-Butyl alcohol	71-36-3	30,561 lbs	0 lbs	30,561 lbs
17	Hydrogen cyanide	74-90-8	25,157 lbs	70 lbs	30,477 lbs
18	Vinyl chloride	75-01-4	24,220 lbs	4 lbs	24,224 lbs
19	Xylene (mixed isomers)	1330-20-7	18,400 lbs	10 lbs	20,108 lbs
20	Acetophenone	98-86-2	17,907 lbs	860 lbs	18,767 lbs
21	Zinc compounds	N982	17 lbs	9,539 lbs	15,325 lbs
22	Acetaldehyde	75-07-0	13,648 lbs	541 lbs	14,270 lbs
23	n-Hexane	110-54-3	13,870 lbs	10 lbs	13,880 lbs
24	Diethanolamine	111-42-2	3,059 lbs	0 lbs	12,859 lbs
25	Lead compounds	N420	93 lbs	169 lbs	12,855 lbs
26	Epichlorohydrin	106-89-8	12,291 lbs	331 lbs	12,622 lbs
27	Nickel compounds	N495	0 lbs	218 lbs	11,929 lbs
28	Acrylic acid	79-10-7	9,951 lbs	0 lbs	9,951 lbs
29	Dichloromethane	75-09-2	9,911 lbs	10 lbs	9,922 lbs
30	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	9,382 lbs	0 lbs	9,382 lbs
31	1,2-Dichloroethane	107-06-2	8,530 lbs	0 lbs	8,530 lbs
32	Acetonitrile	75-05-8	4,900 lbs	3,100 lbs	8,000 lbs
33	Trade Secret	TRD SECRT	5,677 lbs	0 lbs	5,677 lbs
34	Ethyl acrylate	140-88-5	3,769 lbs	0 lbs	5,572 lbs
35	Ethylbenzene	100-41-4	4,620 lbs	7 lbs	5,262 lbs
36	Sodium nitrite	7632-00-0	0 lbs	4,600 lbs	4,600 lbs
37	Naphthalene	91-20-3	2,290 lbs	22 lbs	4,044 lbs
38	Copper And Copper Compounds	N100	0 lbs	3,809 lbs	3,832 lbs
39	Glycidol	556-52-5	1,002 lbs	2,400 lbs	3,402 lbs
40	sec-Butyl alcohol	78-92-2	540 lbs	2,100 lbs	2,640 lbs
41	Methyl isobutyl ketone	108-10-1	2,468 lbs	0 lbs	2,512 lbs
42	Isoprene	78-79-5	2,360 lbs	16 lbs	2,376 lbs
43	Acrylonitrile	107-13-1	1,776 lbs	0 lbs	1,776 lbs
44	Ethylene glycol	107-21-1	1,527 lbs	0 lbs	1,527 lbs
45	Styrene	100-42-5	1,183 lbs	2 lbs	1,503 lbs
46	Formaldehyde	50-00-0	1,468 lbs	0 lbs	1,468 lbs
47	2-Methyllactonitrile	75-86-5	998 lbs	0 lbs	998 lbs
48	Cyclohexane	110-82-7	858 lbs	17 lbs	875 lbs
49	Vinyl acetate	108-05-4	766 lbs	0 lbs	839 lbs
50	Maleic anhydride	108-31-6	701 lbs	0 lbs	701 lbs
51	1,2,4-Trimethylbenzene	95-63-6	546 lbs	0 lbs	546 lbs
52	Dicyclopentadiene	77-73-6	493 lbs	0 lbs	503 lbs
53	Cyanide compounds	N106	0 lbs	396 lbs	418 lbs
54	Polycyclic aromatic compounds	N590	12 lbs	14 lbs	390 lbs
55	Manganese compounds	N450	37 lbs	350 lbs	387 lbs
56	Cumene hydroperoxide	80-15-9	384 lbs	0 lbs	384 lbs
57	Nonylphenol	N530	2 lbs	0 lbs	374 lbs
58	Benzo[g,h,i]perylene	191-24-2	0 lbs	1 lbs	334 lbs
59	Chlorine	7782-50-5	311 lbs	0 lbs	311 lbs
60	Formic acid	64-18-6	291 lbs	0 lbs	291 lbs
61	Tetrachloroethylene	127-18-4	282 lbs	4 lbs	286 lbs
62	1,1,2-Trichloroethane	79-00-5	166 lbs	0 lbs	166 lbs
63	Bis(2-chloroethyl) ether	111-44-4	96 lbs	0 lbs	96 lbs
64	Hydroquinone	123-31-9	84 lbs	0 lbs	84 lbs
65	Vanadium compounds	N770	0 lbs	0 lbs	56 lbs
66	Mercury compounds	N458	0 lbs	53 lbs	54 lbs
67	Dioxin and dioxin-like compounds	N150	1 lbs	0 lbs	53 lbs
68	Chloroform	67-66-3	44 lbs	0 lbs	44 lbs
69	Trichloroethylene	79-01-6	43 lbs	0 lbs	43 lbs
70	Lead	7439-92-1	0 lbs	0 lbs	38 lbs
71	Pentachloroethane	76-01-7	36 lbs	0 lbs	36 lbs
72	Mercury And Mercury Compounds	N458	17 lbs	0 lbs	32 lbs
73	Acrolein	107-02-8	27 lbs	0 lbs	27 lbs
74	1,1,2,2-Tetrachloroethane	79-34-5	24 lbs	0 lbs	24 lbs
75	Chloroethane	75-00-3	21 lbs	0 lbs	21 lbs
76	Chlorobenzene	108-90-7	14 lbs	0 lbs	14 lbs
77	Carbon disulfide	75-15-0	12 lbs	0 lbs	12 lbs
78	Nitric acid	7697-37-2	11 lbs	0 lbs	11 lbs
79	Chromium	7440-47-3	0 lbs	2 lbs	8 lbs
80	Phenanthrene	85-01-8	6 lbs	1 lbs	7 lbs
81	Nickel	7440-02-0	0 lbs	2 lbs	6 lbs
82	1,2-Dichloroethylene	540-59-0	5 lbs	0 lbs	5 lbs
83	Carbon tetrachloride	56-23-5	4 lbs	0 lbs	4 lbs
84	Chloroprene	126-99-8	3 lbs	0 lbs	3 lbs
85	Hexachloroethane	67-72-1	2 lbs	0 lbs	2 lbs
86	Anthracene	120-12-7	1 lbs	1 lbs	2 lbs
87	Ethylidene dichloride	75-34-3	1 lbs	0 lbs	1 lbs
88	Propylene oxide	75-56-9	1 lbs	0 lbs	1 lbs
89	Hexachlorobenzene	118-74-1	1 lbs	0 lbs	1 lbs