Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 0 N Witter St, Pasadena Tx, TX 77506

HCAD #0410340010020
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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 AE
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 N Witter St, Pasadena Tx, TX 77506
Elevation
17.14 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
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)
26.99 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
278.0 acres
94.3% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$19,182,382
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
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
Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages
#2
Obtain an Elevation Certificate to determine accurate flood insurance premiums
#3
Property elevation currently above simulated flood level
#4
Maintain flood insurance coverage as required in Special Flood Hazard Areas
#5
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#6
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
11.1th 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)
6.15 millionlbs
Extremely High
942.4x more than typical Houston property
≈ 307 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
6.1 millionlbs
Extremely High
1265.9x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
44 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
25
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)6,148,525 lbs6,104,376 lbs44,149 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)365,623 lbs363,820 lbs954 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):
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 66 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(66 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-11,303,858 lbs0 lbs1,303,858 lbs
2n-Hexane110-54-31,180,670 lbs179 lbs1,181,333 lbs
3Ammonia7664-41-7828,361 lbs33,581 lbs861,942 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
6Propylene115-07-1271,756 lbs0 lbs271,756 lbs
7Xylene (mixed isomers)1330-20-7242,436 lbs147 lbs244,992 lbs
81,3-Butadiene106-99-0232,400 lbs0 lbs232,401 lbs
9Toluene108-88-3214,331 lbs60 lbs215,344 lbs
10Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
11n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
12Benzene71-43-2114,006 lbs53 lbs114,632 lbs
13Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
141,2,4-Trimethylbenzene95-63-651,231 lbs105 lbs51,814 lbs
15Ethylbenzene100-41-447,486 lbs77 lbs48,194 lbs
16Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
17Certain glycol ethersN23037,184 lbs0 lbs37,184 lbs
18Styrene100-42-532,969 lbs0 lbs32,969 lbs
19Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
20Cyclohexane110-82-729,731 lbs0 lbs30,491 lbs
21Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
22Naphthalene91-20-316,487 lbs21 lbs17,836 lbs
23Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
24Zinc compoundsN9827,485 lbs6,916 lbs14,401 lbs
25Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
26Isoprene78-79-513,272 lbs0 lbs13,272 lbs
27Cumene98-82-89,315 lbs10 lbs9,513 lbs
28Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
29Chlorine7782-50-56,750 lbs0 lbs6,750 lbs
30Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
31Ethylene glycol107-21-15,554 lbs0 lbs5,554 lbs
32Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,281 lbs0 lbs5,281 lbs
33Phenol108-95-25,163 lbs0 lbs5,163 lbs
34Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
35Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
36Formaldehyde50-00-03,345 lbs0 lbs3,345 lbs
37Manganese compoundsN4502,054 lbs262 lbs2,316 lbs
38Manganese7439-96-51,738 lbs543 lbs2,281 lbs
39Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
40Chromium7440-47-31,222 lbs925 lbs2,146 lbs
41o-Cresol95-48-71,985 lbs0 lbs1,985 lbs
42Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
43Nickel7440-02-01,094 lbs543 lbs1,637 lbs
44Formic acid64-18-61,406 lbs0 lbs1,406 lbs
45Maleic anhydride108-31-61,046 lbs0 lbs1,046 lbs
46Chromium compounds (except for chromite ore mined in the Transvaal Region)N090411 lbs417 lbs828 lbs
47Aluminum (fume or dust)7429-90-5737 lbs0 lbs737 lbs
48Nickel compoundsN495443 lbs250 lbs694 lbs
49Diethanolamine111-42-2600 lbs0 lbs600 lbs
50Lead compoundsN420291 lbs27 lbs317 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 CompoundsN42055 lbs27 lbs83 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
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, 1,3-Butadiene, n-Hexane, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
View the full list of 43 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(43 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1129,645 lbs0 lbs129,645 lbs
2Ammonia7664-41-789,692 lbs93 lbs89,785 lbs
31,3-Butadiene106-99-033,626 lbs0 lbs33,626 lbs
4n-Hexane110-54-322,511 lbs0 lbs22,615 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
6Methanol67-56-115,808 lbs0 lbs15,808 lbs
7Xylene (mixed isomers)1330-20-712,427 lbs23 lbs12,733 lbs
8Toluene108-88-39,336 lbs13 lbs9,454 lbs
9Benzene71-43-26,125 lbs6 lbs6,162 lbs
10Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
111,2,4-Trimethylbenzene95-63-65,237 lbs0 lbs5,446 lbs
12Isoprene78-79-52,371 lbs0 lbs2,371 lbs
13Phenol108-95-22,206 lbs0 lbs2,206 lbs
14Ethylbenzene100-41-41,882 lbs15 lbs1,967 lbs
15Propylene115-07-11,202 lbs0 lbs1,202 lbs
16Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
17Zinc compoundsN982678 lbs481 lbs1,159 lbs
18Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
19Dimethylamine124-40-3864 lbs0 lbs864 lbs
20Naphthalene91-20-3748 lbs1 lbs772 lbs
21Cyclohexane110-82-7649 lbs0 lbs667 lbs
22Ethylene glycol107-21-1530 lbs0 lbs530 lbs
23Chlorine7782-50-5512 lbs0 lbs512 lbs
24Cumene98-82-8480 lbs0 lbs486 lbs
25Formaldehyde50-00-0354 lbs0 lbs354 lbs
26Acrylonitrile107-13-1278 lbs0 lbs278 lbs
27Manganese7439-96-5192 lbs86 lbs278 lbs
28Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0265 lbs0 lbs265 lbs
29Propylene oxide75-56-9255 lbs0 lbs255 lbs
30Chromium7440-47-396 lbs144 lbs240 lbs
31Formic acid64-18-6189 lbs0 lbs189 lbs
32Maleic anhydride108-31-6132 lbs0 lbs132 lbs
33Nickel7440-02-042 lbs86 lbs128 lbs
34o-Cresol95-48-788 lbs0 lbs88 lbs
35Acetaldehyde75-07-045 lbs0 lbs45 lbs
36Diphenylamine122-39-423 lbs0 lbs23 lbs
37Lead And Lead CompoundsN4208 lbs6 lbs14 lbs
38Certain glycol ethersN23011 lbs0 lbs11 lbs
39Diethanolamine111-42-210 lbs0 lbs10 lbs
40Styrene100-42-57 lbs0 lbs7 lbs
411,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
42Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
43Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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