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
301 JEFFERSON RD PASADENA 77506
Elevation
25.29 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: 15.29 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 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)
8.91 million lbs
Extremely High
1365.8x more than typical Houston property
≈ 446 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)
7.81 million lbs
Extremely High
1620.0x 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)
1.1 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)8,910,908 lbs7,812,326 lbs1,098,582 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)710,958 lbs554,119 lbs74,135 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 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):

Ethylene, n-Hexane, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Propylene

View the full list of 66 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (66 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-11,636,446 lbs0 lbs1,636,446 lbs
2n-Hexane110-54-31,158,752 lbs221 lbs1,159,426 lbs
3Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,038,744 lbs1,038,744 lbs
4Ammonia7664-41-7783,821 lbs36,262 lbs820,083 lbs
5Propylene115-07-1560,680 lbs0 lbs560,680 lbs
6Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9528,487 lbs0 lbs528,487 lbs
7Cumene98-82-8525,172 lbs11 lbs525,366 lbs
8Methanol67-56-1448,119 lbs7,563 lbs455,682 lbs
9Benzene71-43-2247,688 lbs47 lbs248,290 lbs
10Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
11Xylene (mixed isomers)1330-20-7210,043 lbs129 lbs212,510 lbs
12Acetophenone98-86-2206,492 lbs3,645 lbs210,136 lbs
13Toluene108-88-3200,254 lbs573 lbs201,729 lbs
14Vinyl chloride75-01-4166,976 lbs14 lbs166,990 lbs
15Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0156,836 lbs0 lbs156,836 lbs
16Aluminum (fume or dust)7429-90-5132,790 lbs0 lbs132,800 lbs
17Acetaldehyde75-07-098,856 lbs3,956 lbs102,812 lbs
18Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
191,2,4-Trimethylbenzene95-63-647,768 lbs105 lbs48,136 lbs
20Ethylbenzene100-41-439,252 lbs61 lbs39,907 lbs
21Cyclohexane110-82-737,260 lbs51 lbs38,120 lbs
22Hydrogen sulfide7783-06-437,773 lbs0 lbs37,774 lbs
23Certain glycol ethersN23037,104 lbs0 lbs37,104 lbs
241,3-Butadiene106-99-030,135 lbs0 lbs30,135 lbs
25o-Toluidine95-53-429,521 lbs51 lbs30,113 lbs
26Isobutyraldehyde78-84-228,404 lbs0 lbs28,404 lbs
27Butyraldehyde123-72-823,130 lbs0 lbs23,130 lbs
28Naphthalene91-20-316,264 lbs21 lbs17,608 lbs
29Zinc compoundsN98210,404 lbs6,866 lbs17,285 lbs
30Chloromethane74-87-315,422 lbs31 lbs15,478 lbs
31Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
32Chloroethane75-00-314,708 lbs41 lbs14,784 lbs
33Phenol108-95-213,534 lbs4 lbs13,538 lbs
34Diaminotoluene (mixed isomers)25376-45-812,695 lbs51 lbs12,797 lbs
35Chlorine7782-50-510,406 lbs0 lbs10,411 lbs
36Biphenyl92-52-47,931 lbs15 lbs8,283 lbs
37Aniline62-53-36,824 lbs25 lbs7,119 lbs
38Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
39n-Butyl alcohol71-36-34,032 lbs0 lbs4,032 lbs
40Phthalic anhydride85-44-93,545 lbs0 lbs3,545 lbs
41Formaldehyde50-00-03,345 lbs0 lbs3,345 lbs
42Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
43Ethylene glycol107-21-12,118 lbs0 lbs2,118 lbs
44o-Cresol95-48-71,985 lbs0 lbs1,985 lbs
45Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
46Maleic anhydride108-31-61,686 lbs0 lbs1,686 lbs
47Formic acid64-18-61,406 lbs0 lbs1,406 lbs
48o-Xylene95-47-61,330 lbs0 lbs1,330 lbs
49Manganese compoundsN4501,064 lbs0 lbs1,064 lbs
50Lead compoundsN420291 lbs38 lbs330 lbs
51Manganese And Manganese CompoundsN450309 lbs0 lbs309 lbs
52Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
531,2-Dibromoethane106-93-4133 lbs0 lbs133 lbs
541,2-Dichloroethane107-06-2127 lbs0 lbs127 lbs
55Diphenylamine122-39-4126 lbs0 lbs126 lbs
56Nickel7440-02-0120 lbs0 lbs120 lbs
57Lead And Lead CompoundsN42056 lbs39 lbs96 lbs
58Manganese7439-96-570 lbs0 lbs70 lbs
59Chromium7440-47-340 lbs0 lbs40 lbs
60Mercury7439-97-630 lbs0 lbs30 lbs
61Polycyclic aromatic compoundsN59024 lbs2 lbs26 lbs
62Lead7439-92-11 lbs13 lbs14 lbs
63Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
64Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
65Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
66Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

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

View the full list of 55 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (55 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1159,653 lbs0 lbs159,653 lbs
2Ammonia7664-41-784,630 lbs93 lbs112,168 lbs
3Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs72,435 lbs72,435 lbs
4Propylene115-07-158,876 lbs0 lbs58,876 lbs
5Methanol67-56-119,060 lbs336 lbs46,187 lbs
6Cumene98-82-835,239 lbs0 lbs35,379 lbs
7n-Hexane110-54-323,248 lbs5 lbs23,297 lbs
8Benzene71-43-222,702 lbs4 lbs22,800 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-020,007 lbs0 lbs20,007 lbs
10Acetophenone98-86-217,719 lbs350 lbs18,069 lbs
11Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
12Aluminum (fume or dust)7429-90-513,724 lbs0 lbs13,724 lbs
13Vinyl chloride75-01-413,207 lbs1 lbs13,208 lbs
14Zinc compoundsN982678 lbs476 lbs9,871 lbs
15Xylene (mixed isomers)1330-20-78,866 lbs15 lbs9,326 lbs
16Acetaldehyde75-07-08,345 lbs380 lbs8,725 lbs
17Toluene108-88-36,323 lbs5 lbs8,220 lbs
18Vanadium compoundsN7700 lbs0 lbs6,689 lbs
19Phenol108-95-24,579 lbs0 lbs5,952 lbs
201,2,4-Trimethylbenzene95-63-65,040 lbs0 lbs5,877 lbs
21Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
22Isobutyraldehyde78-84-24,431 lbs0 lbs4,431 lbs
23o-Toluidine95-53-44,008 lbs5 lbs4,018 lbs
24Formaldehyde50-00-0354 lbs0 lbs3,326 lbs
25Butyraldehyde123-72-82,507 lbs0 lbs2,507 lbs
26Cyclohexane110-82-72,435 lbs5 lbs2,463 lbs
27Chloroethane75-00-32,102 lbs5 lbs2,107 lbs
28Formic acid64-18-6189 lbs0 lbs1,968 lbs
29Chloromethane74-87-31,938 lbs5 lbs1,943 lbs
30Diaminotoluene (mixed isomers)25376-45-81,821 lbs5 lbs1,831 lbs
31Ethylbenzene100-41-41,688 lbs7 lbs1,733 lbs
321,3-Butadiene106-99-01,251 lbs0 lbs1,251 lbs
33Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
34o-Cresol95-48-788 lbs0 lbs1,122 lbs
35Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1,095 lbs
36Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
37Dimethylamine124-40-3864 lbs0 lbs884 lbs
38Naphthalene91-20-3728 lbs1 lbs747 lbs
39n-Butyl alcohol71-36-3638 lbs0 lbs638 lbs
40Ethylene glycol107-21-1588 lbs0 lbs608 lbs
41Chlorine7782-50-5522 lbs0 lbs522 lbs
42Lead And Lead CompoundsN4208 lbs1 lbs460 lbs
43Perfluorooctanoic acid335-67-10 lbs0 lbs402 lbs
44Acrylonitrile107-13-1278 lbs0 lbs294 lbs
45Maleic anhydride108-31-6132 lbs0 lbs281 lbs
46Propylene oxide75-56-9255 lbs0 lbs255 lbs
47Lead compoundsN4200 lbs0 lbs161 lbs
48Mercury compoundsN4580 lbs0 lbs46 lbs
49Manganese7439-96-530 lbs0 lbs30 lbs
50Chromium7440-47-325 lbs0 lbs25 lbs
51Nickel7440-02-024 lbs0 lbs24 lbs
52Diphenylamine122-39-423 lbs0 lbs23 lbs
531,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
54Certain glycol ethersN2301 lbs0 lbs1 lbs
55Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

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