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
12978 NIMITZ ST HOUSTON 77015
Building Size
886 sqft
Total structure area from HCAD building records.
Elevation
22.27 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
Property not flooded at current water level. No damage to calculate.
Depth-Damage Estimate (Neighborhood Comparison)
$0
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: 12.27 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 81% 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)
1.09 million lbs
Extremely High
167.8x more than typical Houston property
≈ 55 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)
1.07 million lbs
Extremely High
222.0x 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)
24 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)1,094,744 lbs1,070,482 lbs24,262 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)88,901 lbs77,426 lbs1,261 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 81% 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):

m-Cresol, 2,4-Dimethylphenol, p-Cresol, o-Cresol, Phenol

View the full list of 52 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (52 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1m-Cresol108-39-445,935 lbs6,586 lbs5,666,444 lbs
22,4-Dimethylphenol105-67-913,055 lbs965 lbs4,229,319 lbs
3p-Cresol106-44-538,298 lbs3,292 lbs3,009,676 lbs
4o-Cresol95-48-725,461 lbs1,579 lbs1,765,196 lbs
5Phenol108-95-217,879 lbs3,104 lbs1,051,635 lbs
61,3-Butadiene106-99-0203,018 lbs0 lbs203,018 lbs
7Ethylene74-85-1165,454 lbs0 lbs165,454 lbs
8Chlorine7782-50-588,499 lbs0 lbs88,499 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-059,575 lbs0 lbs59,575 lbs
10Styrene100-42-559,223 lbs0 lbs59,223 lbs
11Chlorodifluoromethane (HCFC-22)75-45-646,271 lbs0 lbs46,271 lbs
12n-Hexane110-54-346,122 lbs0 lbs46,122 lbs
13Hydrogen sulfide7783-06-431,339 lbs0 lbs31,339 lbs
14Chlorothalonil1897-45-629,974 lbs83 lbs30,057 lbs
15Carbon disulfide75-15-027,720 lbs0 lbs27,720 lbs
16Ammonia7664-41-723,659 lbs3,477 lbs27,136 lbs
17Xylene (mixed isomers)1330-20-722,855 lbs0 lbs22,855 lbs
18Toluene108-88-315,876 lbs0 lbs16,452 lbs
19Cyclohexane110-82-716,388 lbs0 lbs16,388 lbs
20Carbon tetrachloride56-23-514,345 lbs12 lbs14,358 lbs
21Isoprene78-79-513,272 lbs0 lbs13,272 lbs
22Methanol67-56-112,158 lbs0 lbs12,158 lbs
23m-Xylene108-38-311,963 lbs54 lbs12,017 lbs
24Ethylbenzene100-41-410,705 lbs0 lbs10,705 lbs
25Vanadium compoundsN7706,236 lbs2,153 lbs8,389 lbs
26Benzene71-43-27,037 lbs0 lbs7,037 lbs
27Biphenyl92-52-43,407 lbs0 lbs3,407 lbs
28Hydrogen cyanide74-90-83,231 lbs0 lbs3,231 lbs
29Manganese7439-96-51,668 lbs543 lbs2,211 lbs
30Chromium7440-47-31,182 lbs925 lbs2,106 lbs
31Nickel7440-02-01,350 lbs544 lbs1,894 lbs
32Manganese compoundsN450990 lbs262 lbs1,252 lbs
33Formic acid64-18-61,012 lbs0 lbs1,012 lbs
34Hexachlorobenzene118-74-11,002 lbs1 lbs1,003 lbs
35Certain glycol ethersN230903 lbs0 lbs903 lbs
361,2,4-Trimethylbenzene95-63-6863 lbs0 lbs863 lbs
37Chromium compounds (except for chromite ore mined in the Transvaal Region)N090410 lbs417 lbs828 lbs
38Nickel compoundsN495443 lbs250 lbs694 lbs
39Ethylene glycol107-21-1398 lbs0 lbs398 lbs
40Cobalt7440-48-4250 lbs0 lbs250 lbs
41Aluminum (fume or dust)7429-90-5250 lbs0 lbs250 lbs
42Copper7440-50-8250 lbs0 lbs250 lbs
43Phthalic anhydride85-44-9184 lbs0 lbs184 lbs
44Maleic anhydride108-31-6139 lbs0 lbs139 lbs
45Propylene115-07-1126 lbs0 lbs126 lbs
46Dioxin and dioxin-like compoundsN15039 lbs0 lbs39 lbs
47Naphthalene91-20-329 lbs0 lbs29 lbs
48Nitric acid7697-37-228 lbs0 lbs28 lbs
49Nonylphenol EthoxylatesN53510 lbs0 lbs10 lbs
50Lead And Lead CompoundsN4200 lbs7 lbs7 lbs
51Lead compoundsN4200 lbs6 lbs7 lbs
52Mercury7439-97-60 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

1,3-Butadiene, Ethylene, m-Cresol, 2,4-Dimethylphenol, p-Cresol

View the full list of 22 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (22 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
11,3-Butadiene106-99-032,375 lbs0 lbs32,375 lbs
2Ethylene74-85-114,466 lbs0 lbs14,466 lbs
3m-Cresol108-39-45,580 lbs416 lbs7,579 lbs
42,4-Dimethylphenol105-67-91,591 lbs64 lbs7,241 lbs
5p-Cresol106-44-54,895 lbs208 lbs5,894 lbs
6o-Cresol95-48-73,192 lbs103 lbs3,937 lbs
7Phenol108-95-22,525 lbs151 lbs3,053 lbs
8Hydrogen sulfide7783-06-42,619 lbs0 lbs2,619 lbs
9Carbon disulfide75-15-01,835 lbs0 lbs2,484 lbs
10Isoprene78-79-52,371 lbs0 lbs2,371 lbs
11n-Hexane110-54-32,350 lbs0 lbs2,350 lbs
12Methanol67-56-11,343 lbs0 lbs1,343 lbs
13Cyclohexane110-82-71,053 lbs0 lbs1,053 lbs
14Toluene108-88-3314 lbs0 lbs890 lbs
15Manganese7439-96-5162 lbs86 lbs248 lbs
16Chromium7440-47-371 lbs144 lbs215 lbs
17Certain glycol ethersN230214 lbs0 lbs214 lbs
18Nickel7440-02-0108 lbs86 lbs202 lbs
19Formic acid64-18-6173 lbs0 lbs173 lbs
20Benzene71-43-2105 lbs0 lbs108 lbs
21Propylene115-07-183 lbs0 lbs83 lbs
22Lead compoundsN4200 lbs3 lbs3 lbs

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