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
0 JEFFERSON RD PASADENA 77506
Elevation
54.65 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: 44.65 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 91% 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)
9.47 million lbs
Extremely High
1451.5x more than typical Houston property
≈ 473 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)
8.37 million lbs
Extremely High
1735.3x 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)9,469,696 lbs8,368,095 lbs1,101,601 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)767,338 lbs609,000 lbs74,482 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 91% 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 73 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (73 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-11,801,900 lbs0 lbs1,801,900 lbs
2n-Hexane110-54-31,223,009 lbs230 lbs1,223,763 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
5Propylene115-07-1560,806 lbs0 lbs560,806 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
7Cumene98-82-8525,341 lbs11 lbs525,540 lbs
8Methanol67-56-1453,736 lbs7,563 lbs461,299 lbs
9Benzene71-43-2258,024 lbs56 lbs258,653 lbs
101,3-Butadiene106-99-0233,153 lbs0 lbs233,153 lbs
11Xylene (mixed isomers)1330-20-7223,145 lbs147 lbs225,701 lbs
12Toluene108-88-3216,111 lbs590 lbs217,690 lbs
13Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
14Acetophenone98-86-2206,492 lbs3,645 lbs210,136 lbs
15Vinyl chloride75-01-4166,976 lbs14 lbs166,990 lbs
16Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0156,836 lbs0 lbs156,836 lbs
17Aluminum (fume or dust)7429-90-5133,040 lbs0 lbs133,050 lbs
18Acetaldehyde75-07-098,856 lbs3,956 lbs102,812 lbs
19Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
20Cyclohexane110-82-751,916 lbs51 lbs52,777 lbs
211,2,4-Trimethylbenzene95-63-650,498 lbs105 lbs50,937 lbs
22Ethylbenzene100-41-446,898 lbs77 lbs47,606 lbs
23Hydrogen sulfide7783-06-437,773 lbs0 lbs37,774 lbs
24Certain glycol ethersN23037,104 lbs0 lbs37,104 lbs
25Styrene100-42-532,913 lbs0 lbs32,913 lbs
26o-Toluidine95-53-429,521 lbs51 lbs30,113 lbs
27Isobutyraldehyde78-84-228,404 lbs0 lbs28,404 lbs
28Butyraldehyde123-72-823,130 lbs0 lbs23,130 lbs
29Naphthalene91-20-316,408 lbs21 lbs17,757 lbs
30Zinc compoundsN98210,404 lbs6,866 lbs17,285 lbs
31Chloromethane74-87-315,422 lbs31 lbs15,478 lbs
32Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
33Chloroethane75-00-314,708 lbs41 lbs14,784 lbs
34Phenol108-95-213,534 lbs4 lbs13,538 lbs
35Isoprene78-79-513,272 lbs0 lbs13,272 lbs
36Diaminotoluene (mixed isomers)25376-45-812,695 lbs51 lbs12,797 lbs
37Chlorine7782-50-510,406 lbs0 lbs10,411 lbs
38Biphenyl92-52-47,931 lbs15 lbs8,283 lbs
39Aniline62-53-36,824 lbs25 lbs7,119 lbs
40Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
41n-Butyl alcohol71-36-34,032 lbs0 lbs4,032 lbs
42Phthalic anhydride85-44-93,545 lbs0 lbs3,545 lbs
43Formaldehyde50-00-03,345 lbs0 lbs3,345 lbs
44Manganese compoundsN4502,054 lbs262 lbs2,316 lbs
45Manganese7439-96-51,738 lbs543 lbs2,281 lbs
46Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
47Chromium7440-47-31,222 lbs925 lbs2,146 lbs
48Ethylene glycol107-21-12,118 lbs0 lbs2,118 lbs
49o-Cresol95-48-71,985 lbs0 lbs1,985 lbs
50Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
51Maleic anhydride108-31-61,686 lbs0 lbs1,686 lbs
52Nickel7440-02-01,094 lbs543 lbs1,637 lbs
53Formic acid64-18-61,406 lbs0 lbs1,406 lbs
54o-Xylene95-47-61,330 lbs0 lbs1,330 lbs
55Chromium compounds (except for chromite ore mined in the Transvaal Region)N090411 lbs417 lbs828 lbs
56Nickel compoundsN495443 lbs250 lbs694 lbs
57Lead compoundsN420293 lbs43 lbs337 lbs
58Manganese And Manganese CompoundsN450309 lbs0 lbs309 lbs
59Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
60Cobalt7440-48-4250 lbs0 lbs250 lbs
61Copper7440-50-8250 lbs0 lbs250 lbs
621,2-Dibromoethane106-93-4133 lbs0 lbs133 lbs
631,2-Dichloroethane107-06-2127 lbs0 lbs127 lbs
64Diphenylamine122-39-4126 lbs0 lbs126 lbs
65Lead And Lead CompoundsN42056 lbs44 lbs101 lbs
66Polycyclic aromatic compoundsN59047 lbs2 lbs49 lbs
67Anthracene120-12-731 lbs0 lbs31 lbs
68Mercury7439-97-630 lbs0 lbs30 lbs
69Lead7439-92-11 lbs13 lbs14 lbs
70Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
71Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
72Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
73Mercury 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 56 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (56 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1174,119 lbs0 lbs174,119 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
4Propylene115-07-158,959 lbs0 lbs58,959 lbs
5Methanol67-56-119,060 lbs336 lbs46,187 lbs
6Cumene98-82-835,264 lbs0 lbs35,409 lbs
71,3-Butadiene106-99-033,626 lbs0 lbs33,626 lbs
8n-Hexane110-54-326,668 lbs5 lbs26,788 lbs
9Benzene71-43-223,247 lbs6 lbs23,368 lbs
10Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-020,007 lbs0 lbs20,007 lbs
11Acetophenone98-86-217,719 lbs350 lbs18,069 lbs
12Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
13Aluminum (fume or dust)7429-90-513,724 lbs0 lbs13,724 lbs
14Vinyl chloride75-01-413,207 lbs1 lbs13,208 lbs
15Zinc compoundsN982678 lbs476 lbs9,871 lbs
16Xylene (mixed isomers)1330-20-79,146 lbs23 lbs9,686 lbs
17Toluene108-88-36,843 lbs13 lbs8,835 lbs
18Acetaldehyde75-07-08,345 lbs380 lbs8,725 lbs
19Vanadium compoundsN7700 lbs0 lbs6,689 lbs
201,2,4-Trimethylbenzene95-63-65,154 lbs0 lbs6,062 lbs
21Phenol108-95-24,579 lbs0 lbs5,952 lbs
22Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
23Isobutyraldehyde78-84-24,431 lbs0 lbs4,431 lbs
24o-Toluidine95-53-44,008 lbs5 lbs4,018 lbs
25Formaldehyde50-00-0354 lbs0 lbs3,326 lbs
26Cyclohexane110-82-72,729 lbs5 lbs2,757 lbs
27Butyraldehyde123-72-82,507 lbs0 lbs2,507 lbs
28Isoprene78-79-52,371 lbs0 lbs2,371 lbs
29Chloroethane75-00-32,102 lbs5 lbs2,107 lbs
30Formic acid64-18-6189 lbs0 lbs1,968 lbs
31Chloromethane74-87-31,938 lbs5 lbs1,943 lbs
32Ethylbenzene100-41-41,813 lbs15 lbs1,903 lbs
33Diaminotoluene (mixed isomers)25376-45-81,821 lbs5 lbs1,831 lbs
34Lead And Lead CompoundsN4208 lbs6 lbs1,248 lbs
35Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
36o-Cresol95-48-788 lbs0 lbs1,122 lbs
37Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1,095 lbs
38Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
39Dimethylamine124-40-3864 lbs0 lbs884 lbs
40Naphthalene91-20-3739 lbs1 lbs764 lbs
41n-Butyl alcohol71-36-3638 lbs0 lbs638 lbs
42Ethylene glycol107-21-1588 lbs0 lbs608 lbs
43Chlorine7782-50-5522 lbs0 lbs522 lbs
44Perfluorooctanoic acid335-67-10 lbs0 lbs402 lbs
45Acrylonitrile107-13-1278 lbs0 lbs294 lbs
46Maleic anhydride108-31-6132 lbs0 lbs281 lbs
47Manganese7439-96-5192 lbs86 lbs278 lbs
48Propylene oxide75-56-9255 lbs0 lbs255 lbs
49Chromium7440-47-396 lbs144 lbs240 lbs
50Lead compoundsN4200 lbs0 lbs161 lbs
51Nickel7440-02-042 lbs86 lbs128 lbs
52Mercury compoundsN4580 lbs0 lbs46 lbs
53Diphenylamine122-39-423 lbs0 lbs23 lbs
541,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
55Certain glycol ethersN2301 lbs0 lbs1 lbs
56Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

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