Data-driven insights for local properties

📊 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
1514 S SHELDON RD HOUSTON 77015
Elevation
24.51 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
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)
$0
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
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: 14.51 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)
20.57 million lbs
Extremely High
3153.6x more than typical Houston property
≈ 1.0K 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)
13.25 million lbs
Extremely High
2748.7x 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)
7.32 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.

PeriodTotalAirWater
Typical Houston Property (2014-2024)6,524 lbs4,822 lbs0 lbs
This Property (2014-2024)20,574,751 lbs13,254,936 lbs7,319,815 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,715,804 lbs1,558,735 lbs236,641 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
6%
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), Propylene

View the full list of 106 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (106 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5117 lbs6,943,765 lbs6,943,772 lbs
2Ethylene74-85-11,659,814 lbs0 lbs1,659,814 lbs
3Ammonia7664-41-71,082,426 lbs32,297 lbs1,134,628 lbs
4Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-91,081,942 lbs0 lbs1,081,942 lbs
5Propylene115-07-11,020,766 lbs0 lbs1,020,766 lbs
61,3-Butadiene106-99-01,014,428 lbs0 lbs1,014,428 lbs
7Cumene98-82-8851,651 lbs882 lbs852,534 lbs
8Methyl methacrylate80-62-6656,884 lbs0 lbs656,884 lbs
9Phenol108-95-2634,156 lbs1,108 lbs635,264 lbs
10Benzene71-43-2525,393 lbs326 lbs536,091 lbs
11Toluene108-88-3518,290 lbs283 lbs521,714 lbs
12Methanol67-56-1359,247 lbs96,208 lbs501,987 lbs
13Hydrogen cyanide74-90-8412,928 lbs4,587 lbs417,515 lbs
14Xylene (mixed isomers)1330-20-7333,324 lbs196 lbs351,090 lbs
15Ethylene glycol107-21-1343,460 lbs0 lbs343,460 lbs
16n-Butyl alcohol71-36-3263,507 lbs6 lbs277,733 lbs
17Butyl acrylate141-32-2228,022 lbs0 lbs228,022 lbs
18Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0208,638 lbs0 lbs208,638 lbs
19n-Hexane110-54-3202,199 lbs10 lbs204,652 lbs
20Hydrogen sulfide7783-06-4194,736 lbs2,545 lbs197,281 lbs
21Vinyl chloride75-01-4166,484 lbs46 lbs166,529 lbs
221,2,4-Trimethylbenzene95-63-6141,345 lbs2 lbs144,139 lbs
23Acrylic acid79-10-7127,636 lbs0 lbs127,636 lbs
244,4'-Isopropylidenediphenol80-05-7125,700 lbs0 lbs125,700 lbs
251,2-Dichloroethane107-06-2125,688 lbs0 lbs125,688 lbs
26Epichlorohydrin106-89-8121,011 lbs3,811 lbs124,822 lbs
27Sodium nitrite7632-00-00 lbs102,300 lbs102,300 lbs
28Acetonitrile75-05-883,752 lbs12,219 lbs95,971 lbs
29Ethylbenzene100-41-490,100 lbs226 lbs91,168 lbs
30Methyl isobutyl ketone108-10-176,990 lbs3,070 lbs85,908 lbs
31Acetaldehyde75-07-083,747 lbs1,398 lbs85,145 lbs
32Formaldehyde50-00-027,949 lbs0 lbs82,518 lbs
33Isoprene78-79-569,617 lbs137 lbs69,754 lbs
34Zinc compoundsN982458 lbs55,662 lbs56,121 lbs
35Naphthalene91-20-346,411 lbs207 lbs51,294 lbs
36Methyl tert-butyl ether1634-04-444,474 lbs263 lbs44,737 lbs
37Cyclohexane110-82-731,335 lbs291 lbs37,210 lbs
38Certain glycol ethersN23037,037 lbs0 lbs37,037 lbs
39Ethyl acrylate140-88-536,775 lbs0 lbs36,775 lbs
40Diethanolamine111-42-235,724 lbs0 lbs35,724 lbs
41Isobutyraldehyde78-84-227,782 lbs0 lbs27,782 lbs
42Vinyl acetate108-05-425,163 lbs87 lbs25,250 lbs
43Styrene100-42-523,052 lbs16 lbs24,130 lbs
44Dichloromethane75-09-219,581 lbs39 lbs19,620 lbs
45tert-Butyl alcohol75-65-015,928 lbs1,309 lbs17,237 lbs
46Copper compoundsN1000 lbs13,984 lbs13,984 lbs
47Cumene hydroperoxide80-15-911,006 lbs0 lbs11,006 lbs
482-Nitropropane79-46-90 lbs0 lbs10,750 lbs
49Cyanide compoundsN1060 lbs9,834 lbs9,834 lbs
50Dicyclopentadiene77-73-69,049 lbs0 lbs9,049 lbs
512-Methyllactonitrile75-86-58,411 lbs0 lbs8,411 lbs
52Copper And Copper CompoundsN1001 lbs8,388 lbs8,389 lbs
53Acetophenone98-86-26,714 lbs1,462 lbs8,176 lbs
54Allyl alcohol107-18-67,427 lbs626 lbs8,053 lbs
55sec-Butyl alcohol78-92-22,001 lbs5,600 lbs7,601 lbs
56Glycidol556-52-52,841 lbs4,410 lbs7,251 lbs
57Acrylonitrile107-13-16,971 lbs0 lbs6,971 lbs
58Manganese compoundsN450111 lbs5,037 lbs5,148 lbs
59Chlorine7782-50-54,627 lbs0 lbs4,627 lbs
60Tetrachloroethylene127-18-44,251 lbs176 lbs4,427 lbs
61Nickel compoundsN49580 lbs3,764 lbs3,844 lbs
62Formic acid64-18-62,328 lbs0 lbs2,328 lbs
63Lead compoundsN420534 lbs1,380 lbs1,914 lbs
64Chromium7440-47-31,812 lbs76 lbs1,888 lbs
65Phenanthrene85-01-81,547 lbs159 lbs1,706 lbs
661,1,2-Trichloroethane79-00-51,537 lbs0 lbs1,537 lbs
67Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901,236 lbs41 lbs1,277 lbs
68Bis(2-chloroethyl) ether111-44-4950 lbs0 lbs950 lbs
69Polycyclic aromatic compoundsN590576 lbs130 lbs782 lbs
70Lead And Lead CompoundsN420267 lbs421 lbs689 lbs
71Chloroform67-66-3638 lbs0 lbs638 lbs
72Trichloroethylene79-01-6613 lbs0 lbs613 lbs
73Anthracene120-12-7534 lbs70 lbs604 lbs
74Cresol (mixed isomers)1319-77-3430 lbs146 lbs576 lbs
75Hydroquinone123-31-9388 lbs0 lbs388 lbs
76Acrolein107-02-8326 lbs0 lbs326 lbs
77Pentachloroethane76-01-7323 lbs0 lbs323 lbs
78Mercury compoundsN458105 lbs212 lbs317 lbs
79Chloroethane75-00-3284 lbs0 lbs284 lbs
80Antimony compoundsN010235 lbs0 lbs235 lbs
81Mercury And Mercury CompoundsN45836 lbs195 lbs230 lbs
821,1,2,2-Tetrachloroethane79-34-5219 lbs0 lbs219 lbs
83Butyraldehyde123-72-8218 lbs0 lbs218 lbs
84Nickel7440-02-0106 lbs87 lbs193 lbs
85Benzo[g,h,i]perylene191-24-296 lbs74 lbs170 lbs
86Cobalt compoundsN09633 lbs89 lbs122 lbs
87Carbon disulfide75-15-084 lbs0 lbs84 lbs
88Manganese7439-96-559 lbs22 lbs81 lbs
89Chlorobenzene108-90-777 lbs0 lbs77 lbs
901,2-Dichloroethylene540-59-075 lbs0 lbs75 lbs
91Copper7440-50-815 lbs43 lbs58 lbs
92Chloroprene126-99-855 lbs0 lbs55 lbs
93Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs40 lbs40 lbs
94Ethylidene dichloride75-34-337 lbs0 lbs37 lbs
95Cobalt And Cobalt CompoundsN09612 lbs24 lbs36 lbs
96Dioxin and dioxin-like compoundsN1508 lbs23 lbs31 lbs
97Carbon tetrachloride56-23-527 lbs0 lbs27 lbs
98Hexachloroethane67-72-116 lbs0 lbs16 lbs
99Vinylidene chloride75-35-415 lbs0 lbs15 lbs
1002-Methoxyethanol109-86-413 lbs0 lbs13 lbs
101Lead7439-92-13 lbs7 lbs10 lbs
102Propionaldehyde123-38-68 lbs0 lbs8 lbs
103trans-1,4-Dichloro-2-butene110-57-67 lbs0 lbs7 lbs
104Hexachlorobenzene118-74-15 lbs0 lbs5 lbs
105Biphenyl92-52-43 lbs0 lbs3 lbs
106Acetamide60-35-52 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

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

View the full list of 90 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (90 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1439,952 lbs0 lbs439,952 lbs
2Methyl methacrylate80-62-660,018 lbs0 lbs418,334 lbs
3Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs183,440 lbs183,440 lbs
4Propylene115-07-1147,304 lbs0 lbs147,304 lbs
5Isobutyraldehyde78-84-22,245 lbs0 lbs146,162 lbs
6Methanol67-56-134,557 lbs22,000 lbs121,277 lbs
7Ethylene glycol107-21-1110,903 lbs0 lbs110,903 lbs
81,3-Butadiene106-99-0108,083 lbs0 lbs108,083 lbs
9Ammonia7664-41-760,353 lbs3,133 lbs106,608 lbs
10Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-997,000 lbs0 lbs97,000 lbs
114,4'-Isopropylidenediphenol80-05-710,300 lbs0 lbs89,800 lbs
12Butyl acrylate141-32-223,764 lbs0 lbs80,890 lbs
13Styrene100-42-51,213 lbs2 lbs80,229 lbs
14Toluene108-88-353,643 lbs7 lbs55,022 lbs
15Cumene98-82-852,737 lbs31 lbs52,770 lbs
16n-Butyl alcohol71-36-340,294 lbs0 lbs45,865 lbs
17Benzene71-43-241,752 lbs7 lbs44,753 lbs
18Phenol108-95-240,343 lbs254 lbs42,761 lbs
19Hydrogen sulfide7783-06-438,523 lbs289 lbs38,812 lbs
20Hydrogen cyanide74-90-825,157 lbs70 lbs30,477 lbs
21Xylene (mixed isomers)1330-20-725,073 lbs10 lbs29,401 lbs
22n-Hexane110-54-318,018 lbs10 lbs18,028 lbs
23Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs11 lbs15,941 lbs
24Zinc compoundsN98217 lbs8,650 lbs14,377 lbs
25Diethanolamine111-42-23,059 lbs0 lbs12,859 lbs
26Lead compoundsN42093 lbs169 lbs12,855 lbs
27Epichlorohydrin106-89-812,291 lbs331 lbs12,622 lbs
28DiisocyanatesN1200 lbs0 lbs12,180 lbs
29Nickel compoundsN4950 lbs218 lbs11,929 lbs
30Vinyl chloride75-01-411,013 lbs3 lbs11,016 lbs
31Dichloromethane75-09-29,911 lbs10 lbs9,922 lbs
32Acrylic acid79-10-79,824 lbs0 lbs9,824 lbs
33Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-09,252 lbs0 lbs9,252 lbs
341,2-Dichloroethane107-06-28,530 lbs0 lbs8,530 lbs
35Naphthalene91-20-35,020 lbs22 lbs8,164 lbs
36Acetonitrile75-05-84,900 lbs3,100 lbs8,000 lbs
371,2,4-Trimethylbenzene95-63-67,764 lbs0 lbs7,764 lbs
38Ethylbenzene100-41-46,233 lbs7 lbs6,893 lbs
39Methyl tert-butyl ether1634-04-45,649 lbs56 lbs5,705 lbs
40Acetaldehyde75-07-05,348 lbs161 lbs5,590 lbs
41Sodium nitrite7632-00-00 lbs4,600 lbs4,600 lbs
42Methyl isobutyl ketone108-10-14,027 lbs52 lbs4,329 lbs
43Vinyl acetate108-05-44,012 lbs0 lbs4,085 lbs
44Ethyl acrylate140-88-53,880 lbs0 lbs3,880 lbs
45Copper And Copper CompoundsN1000 lbs3,809 lbs3,832 lbs
46Glycidol556-52-51,002 lbs2,400 lbs3,402 lbs
47Certain glycol ethersN2302,726 lbs0 lbs2,726 lbs
48sec-Butyl alcohol78-92-2595 lbs2,100 lbs2,695 lbs
49Isoprene78-79-52,360 lbs16 lbs2,376 lbs
50Cyclohexane110-82-72,047 lbs17 lbs2,119 lbs
51Acrylonitrile107-13-11,776 lbs0 lbs1,776 lbs
52Formaldehyde50-00-01,468 lbs0 lbs1,468 lbs
53tert-Butyl alcohol75-65-01,168 lbs273 lbs1,441 lbs
542-Methyllactonitrile75-86-5998 lbs0 lbs998 lbs
55Acetophenone98-86-2188 lbs510 lbs698 lbs
56Dicyclopentadiene77-73-6530 lbs0 lbs540 lbs
57Cyanide compoundsN1060 lbs396 lbs418 lbs
58Polycyclic aromatic compoundsN59012 lbs14 lbs390 lbs
59Manganese compoundsN45037 lbs350 lbs387 lbs
60Cumene hydroperoxide80-15-9384 lbs0 lbs384 lbs
61Benzo[g,h,i]perylene191-24-20 lbs1 lbs334 lbs
62Formic acid64-18-6291 lbs0 lbs291 lbs
63Tetrachloroethylene127-18-4282 lbs4 lbs286 lbs
64Chlorine7782-50-5210 lbs0 lbs210 lbs
651,1,2-Trichloroethane79-00-5166 lbs0 lbs166 lbs
66Bis(2-chloroethyl) ether111-44-496 lbs0 lbs96 lbs
67Hydroquinone123-31-984 lbs0 lbs84 lbs
68Vanadium compoundsN7700 lbs0 lbs56 lbs
69Mercury compoundsN4580 lbs53 lbs54 lbs
70Dioxin and dioxin-like compoundsN1501 lbs0 lbs53 lbs
71Chloroform67-66-344 lbs0 lbs44 lbs
72Trichloroethylene79-01-643 lbs0 lbs43 lbs
73Pentachloroethane76-01-736 lbs0 lbs36 lbs
74Mercury And Mercury CompoundsN45817 lbs0 lbs32 lbs
75Chromium7440-47-30 lbs32 lbs32 lbs
76Acrolein107-02-827 lbs0 lbs27 lbs
771,1,2,2-Tetrachloroethane79-34-524 lbs0 lbs24 lbs
78Chloroethane75-00-321 lbs0 lbs21 lbs
79Nickel7440-02-00 lbs20 lbs20 lbs
80Chlorobenzene108-90-714 lbs0 lbs14 lbs
81Carbon disulfide75-15-012 lbs0 lbs12 lbs
82Phenanthrene85-01-86 lbs1 lbs7 lbs
83Lead And Lead CompoundsN4200 lbs0 lbs7 lbs
841,2-Dichloroethylene540-59-05 lbs0 lbs5 lbs
85Carbon tetrachloride56-23-54 lbs0 lbs4 lbs
86Chloroprene126-99-83 lbs0 lbs3 lbs
87Hexachloroethane67-72-12 lbs0 lbs2 lbs
88Anthracene120-12-71 lbs1 lbs2 lbs
89Ethylidene dichloride75-34-31 lbs0 lbs1 lbs
90Hexachlorobenzene118-74-11 lbs0 lbs1 lbs

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