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 DAVISON RD PASADENA 77506
Elevation
18.93 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: 8.93 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
High
Higher pollution than 89% 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)
6.88 million lbs
Extremely High
1054.8x more than typical Houston property
≈ 344 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)
6.84 million lbs
Extremely High
1417.7x 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)
45 thousand 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)6,881,627 lbs6,836,571 lbs45,056 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)562,213 lbs458,622 lbs984 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 89% 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, Ammonia, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol

View the full list of 67 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (67 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-11,801,211 lbs0 lbs1,801,211 lbs
2n-Hexane110-54-31,257,729 lbs230 lbs1,258,483 lbs
3Ammonia7664-41-7832,126 lbs33,581 lbs865,707 lbs
4Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9528,487 lbs0 lbs528,487 lbs
5Methanol67-56-1334,060 lbs0 lbs334,060 lbs
6Propylene115-07-1271,935 lbs0 lbs271,935 lbs
7Xylene (mixed isomers)1330-20-7232,773 lbs147 lbs235,329 lbs
81,3-Butadiene106-99-0232,527 lbs0 lbs232,527 lbs
9Toluene108-88-3220,526 lbs590 lbs222,105 lbs
10Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
11Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0148,437 lbs0 lbs148,437 lbs
12Aluminum (fume or dust)7429-90-5133,040 lbs0 lbs133,050 lbs
13Benzene71-43-2101,757 lbs53 lbs102,383 lbs
14Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
15Cyclohexane110-82-751,838 lbs51 lbs52,699 lbs
161,2,4-Trimethylbenzene95-63-650,498 lbs105 lbs50,937 lbs
17Ethylbenzene100-41-440,536 lbs77 lbs41,244 lbs
18Hydrogen sulfide7783-06-437,773 lbs0 lbs37,774 lbs
19Certain glycol ethersN23037,184 lbs0 lbs37,184 lbs
20Styrene100-42-532,913 lbs0 lbs32,913 lbs
21o-Toluidine95-53-429,521 lbs51 lbs30,113 lbs
22Naphthalene91-20-316,398 lbs21 lbs17,747 lbs
23Zinc compoundsN98210,404 lbs6,931 lbs17,350 lbs
24Chloromethane74-87-315,422 lbs31 lbs15,478 lbs
25Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
26Chloroethane75-00-314,708 lbs41 lbs14,784 lbs
27Isoprene78-79-513,272 lbs0 lbs13,272 lbs
28Diaminotoluene (mixed isomers)25376-45-812,695 lbs51 lbs12,797 lbs
29Chlorine7782-50-510,406 lbs0 lbs10,411 lbs
30Cumene98-82-89,231 lbs10 lbs9,429 lbs
31Biphenyl92-52-47,931 lbs15 lbs8,283 lbs
32Aniline62-53-36,824 lbs25 lbs7,119 lbs
33Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
34Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
35Ethylene glycol107-21-15,554 lbs0 lbs5,554 lbs
36Phenol108-95-25,163 lbs0 lbs5,163 lbs
37Formaldehyde50-00-03,345 lbs0 lbs3,345 lbs
38Manganese compoundsN4502,054 lbs262 lbs2,316 lbs
39Manganese7439-96-51,738 lbs543 lbs2,281 lbs
40Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
41Chromium7440-47-31,222 lbs925 lbs2,146 lbs
42o-Cresol95-48-71,985 lbs0 lbs1,985 lbs
43Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
44Nickel7440-02-01,094 lbs543 lbs1,637 lbs
45Formic acid64-18-61,406 lbs0 lbs1,406 lbs
46Maleic anhydride108-31-61,046 lbs0 lbs1,046 lbs
47Chromium compounds (except for chromite ore mined in the Transvaal Region)N090411 lbs417 lbs828 lbs
48Nickel compoundsN495443 lbs250 lbs694 lbs
49Diethanolamine111-42-2600 lbs0 lbs600 lbs
50Lead compoundsN420293 lbs43 lbs337 lbs
51Manganese And Manganese CompoundsN450309 lbs0 lbs309 lbs
52Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
53Cobalt7440-48-4250 lbs0 lbs250 lbs
54Copper7440-50-8250 lbs0 lbs250 lbs
551,2-Dibromoethane106-93-4133 lbs0 lbs133 lbs
561,2-Dichloroethane107-06-2127 lbs0 lbs127 lbs
57Diphenylamine122-39-4126 lbs0 lbs126 lbs
58Lead And Lead CompoundsN42056 lbs44 lbs101 lbs
59Polycyclic aromatic compoundsN59047 lbs2 lbs49 lbs
60C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
61Anthracene120-12-731 lbs0 lbs31 lbs
62Mercury7439-97-630 lbs0 lbs30 lbs
63Lead7439-92-11 lbs13 lbs14 lbs
64Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
65Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
66Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
67Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Ethylene, Ammonia, Methanol, 1,3-Butadiene, n-Hexane

View the full list of 51 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (51 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1173,430 lbs0 lbs173,430 lbs
2Ammonia7664-41-789,692 lbs93 lbs117,230 lbs
3Methanol67-56-115,808 lbs0 lbs42,599 lbs
41,3-Butadiene106-99-033,626 lbs0 lbs33,626 lbs
5n-Hexane110-54-329,683 lbs5 lbs29,803 lbs
6Zinc compoundsN982678 lbs481 lbs28,626 lbs
7Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-019,877 lbs0 lbs19,877 lbs
8Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
9Aluminum (fume or dust)7429-90-513,724 lbs0 lbs13,724 lbs
10Xylene (mixed isomers)1330-20-712,097 lbs23 lbs12,637 lbs
11Toluene108-88-38,678 lbs13 lbs10,671 lbs
12Vanadium compoundsN7700 lbs0 lbs6,689 lbs
131,2,4-Trimethylbenzene95-63-65,154 lbs0 lbs6,062 lbs
14Benzene71-43-25,840 lbs6 lbs5,960 lbs
15Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
16o-Toluidine95-53-44,008 lbs5 lbs4,018 lbs
17Phenol108-95-22,206 lbs0 lbs3,579 lbs
18Formaldehyde50-00-0354 lbs0 lbs3,326 lbs
19Cyclohexane110-82-72,729 lbs5 lbs2,757 lbs
20Isoprene78-79-52,371 lbs0 lbs2,371 lbs
21Chloroethane75-00-32,102 lbs5 lbs2,107 lbs
22Formic acid64-18-6189 lbs0 lbs1,968 lbs
23Chloromethane74-87-31,938 lbs5 lbs1,943 lbs
24Ethylbenzene100-41-41,813 lbs15 lbs1,903 lbs
25Diaminotoluene (mixed isomers)25376-45-81,821 lbs5 lbs1,831 lbs
26Lead And Lead CompoundsN4208 lbs6 lbs1,248 lbs
27Propylene115-07-11,202 lbs0 lbs1,202 lbs
28Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
29o-Cresol95-48-788 lbs0 lbs1,122 lbs
30Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1,095 lbs
31Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
32Dimethylamine124-40-3864 lbs0 lbs884 lbs
33Naphthalene91-20-3739 lbs1 lbs764 lbs
34Cumene98-82-8471 lbs0 lbs617 lbs
35Ethylene glycol107-21-1530 lbs0 lbs550 lbs
36Chlorine7782-50-5522 lbs0 lbs522 lbs
37Perfluorooctanoic acid335-67-10 lbs0 lbs402 lbs
38Acrylonitrile107-13-1278 lbs0 lbs294 lbs
39Maleic anhydride108-31-6132 lbs0 lbs281 lbs
40Manganese7439-96-5192 lbs86 lbs278 lbs
41Propylene oxide75-56-9255 lbs0 lbs255 lbs
42Chromium7440-47-396 lbs144 lbs240 lbs
43Lead compoundsN4200 lbs0 lbs161 lbs
44Nickel7440-02-042 lbs86 lbs128 lbs
45Mercury compoundsN4580 lbs0 lbs46 lbs
46Acetaldehyde75-07-045 lbs0 lbs45 lbs
47Diphenylamine122-39-423 lbs0 lbs23 lbs
48Certain glycol ethersN23011 lbs0 lbs11 lbs
49Diethanolamine111-42-210 lbs0 lbs10 lbs
501,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
51Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

Explore More Properties