Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1407 Nell St, Pasadena, Tx 77506

HCAD #0836060000024
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🌍Environmental Assessment

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.

🌊Flood Risk Analysis
FEMA Zone X
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
1407 Nell St, Pasadena, Tx 77506
Building Size
1,711sqft
Total structure area from HCAD building records.
Elevation
25.76 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
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 High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
35.60 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
169.7 acres
57.5% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$59,764
Based on HCAD building value of $91,946.
Depth-Damage (Neighborhood)
$57,653
Based on neighborhood replacement cost.
Analysis Method
COG Combined 5000 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 Flooded
Flood Depth: 9.84 feet
Severity
Severe
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.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
11.0th percentile
Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
6.57 millionlbs
Extremely High
1007.1x more than typical Houston property
≈ 329 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
6.5 millionlbs
Extremely High
1348.1x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
69 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
9
Industrial facilities within 2 miles
💡
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)6,570,453 lbs6,501,217 lbs69,236 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)498,694 lbs497,727 lbs968 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 chemicals released near this property (past 10 years):
Styrene, Ammonia, Propylene, Hydrogen cyanide, n-Hexane
View the full list of 40 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(40 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Styrene100-42-51,724,969 lbs7,271 lbs1,732,240 lbs
2Ammonia7664-41-71,115,926 lbs26,223 lbs1,142,148 lbs
3Propylene115-07-1936,912 lbs0 lbs936,912 lbs
4Hydrogen cyanide74-90-8818,552 lbs0 lbs818,552 lbs
5n-Hexane110-54-3395,710 lbs0 lbs395,717 lbs
6Ethylene74-85-1292,319 lbs0 lbs292,319 lbs
7Xylene (mixed isomers)1330-20-7231,926 lbs627 lbs232,583 lbs
8Hydrogen sulfide7783-06-4206,443 lbs0 lbs206,443 lbs
9Benzene71-43-2205,652 lbs457 lbs206,120 lbs
101,3-Butadiene106-99-0197,106 lbs1 lbs197,107 lbs
11Toluene108-88-3169,716 lbs244 lbs169,984 lbs
12Diethanolamine111-42-2102,160 lbs0 lbs102,160 lbs
13Cyclohexane110-82-752,501 lbs0 lbs52,510 lbs
14Ethylbenzene100-41-428,148 lbs63 lbs28,219 lbs
15Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs21,954 lbs21,954 lbs
16Sodium nitrite7632-00-00 lbs9,470 lbs9,470 lbs
17Ethylene glycol107-21-15,255 lbs0 lbs5,264 lbs
18Naphthalene91-20-34,762 lbs75 lbs4,845 lbs
191,2,4-Trimethylbenzene95-63-63,713 lbs0 lbs3,727 lbs
20Polycyclic aromatic compoundsN5902,865 lbs525 lbs3,592 lbs
21Methanol67-56-13,468 lbs0 lbs3,468 lbs
22Zinc compoundsN982219 lbs1,116 lbs2,826 lbs
23Cumene98-82-81,656 lbs0 lbs1,658 lbs
24Phenol108-95-20 lbs1,155 lbs1,155 lbs
25Biphenyl92-52-4345 lbs0 lbs364 lbs
26Mercury compoundsN458165 lbs1 lbs166 lbs
27Chlorine7782-50-5120 lbs0 lbs120 lbs
28Nickel7440-02-0120 lbs0 lbs120 lbs
29Mercury And Mercury CompoundsN45897 lbs0 lbs97 lbs
30Certain glycol ethersN23080 lbs0 lbs80 lbs
31Mercury7439-97-677 lbs0 lbs77 lbs
32Manganese7439-96-570 lbs0 lbs70 lbs
33Isoprene78-79-560 lbs0 lbs60 lbs
34Lead compoundsN4206 lbs46 lbs52 lbs
35C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
36Chromium7440-47-340 lbs0 lbs40 lbs
37Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
38Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
39Benzo[g,h,i]perylene191-24-20 lbs7 lbs7 lbs
40Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
📋
Top chemicals released near this property (2024 only):
Styrene, Ammonia, Hydrogen cyanide, n-Hexane, Propylene
View the full list of 33 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(33 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Styrene100-42-5130,785 lbs291 lbs131,077 lbs
2Ammonia7664-41-7103,533 lbs78 lbs103,610 lbs
3Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
4n-Hexane110-54-335,588 lbs0 lbs35,588 lbs
5Propylene115-07-133,225 lbs0 lbs33,225 lbs
6Xylene (mixed isomers)1330-20-726,894 lbs10 lbs26,904 lbs
7Ethylene74-85-116,725 lbs0 lbs16,725 lbs
8Toluene108-88-316,108 lbs4 lbs16,112 lbs
9Benzene71-43-215,721 lbs110 lbs15,831 lbs
10Hydrogen sulfide7783-06-413,422 lbs0 lbs13,422 lbs
111,3-Butadiene106-99-012,735 lbs0 lbs12,735 lbs
12Diethanolamine111-42-210,092 lbs0 lbs10,092 lbs
13Cyclohexane110-82-74,048 lbs0 lbs4,048 lbs
14Ethylbenzene100-41-42,726 lbs1 lbs2,727 lbs
15Naphthalene91-20-3763 lbs7 lbs770 lbs
16Ethylene glycol107-21-1500 lbs0 lbs500 lbs
17Polycyclic aromatic compoundsN590354 lbs55 lbs409 lbs
18Sodium nitrite7632-00-00 lbs371 lbs371 lbs
191,2,4-Trimethylbenzene95-63-6305 lbs0 lbs305 lbs
20Cumene98-82-8293 lbs0 lbs293 lbs
21Zinc compoundsN98222 lbs27 lbs49 lbs
22Biphenyl92-52-433 lbs0 lbs33 lbs
23Manganese7439-96-530 lbs0 lbs30 lbs
24Chromium7440-47-325 lbs0 lbs25 lbs
25Nickel7440-02-024 lbs0 lbs24 lbs
26Mercury And Mercury CompoundsN45821 lbs0 lbs21 lbs
27Certain glycol ethersN23010 lbs0 lbs10 lbs
28Phenol108-95-20 lbs8 lbs8 lbs
29Isoprene78-79-58 lbs0 lbs8 lbs
30Mercury7439-97-67 lbs0 lbs7 lbs
31Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
32Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs2 lbs
33Lead And Lead CompoundsN4200 lbs0 lbs1 lbs
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