Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 149 David St, Channelview, TX 77530

HCAD #0752460060027
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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
149 David St, Channelview, TX 77530
Elevation
26.72 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
119.7 acres
40.6% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
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 Safe
Safety Margin: 0 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.

#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
8.7th percentile
Property Pollution Ranking
Very High
Higher pollution than 91% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
10.77 millionlbs
Extremely High
1651.3x more than typical Houston property
≈ 539 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
10.75 millionlbs
Extremely High
2230.2x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
19 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
7
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)10,773,618 lbs10,754,784 lbs18,835 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,989,376 lbs1,148,484 lbs1,311 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 0-9th percentile (top 10% most polluted).
📋
Top chemicals released near this property (past 10 years):
Methanol, Ethylbenzene, Acetophenone, Styrene, 1,3-Butadiene
View the full list of 62 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(62 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Methanol67-56-1487,176 lbs0 lbs20,439,172 lbs
2Ethylbenzene100-41-4775,351 lbs4 lbs6,644,967 lbs
3Acetophenone98-86-2147,701 lbs0 lbs6,062,471 lbs
4Styrene100-42-5486,590 lbs0 lbs2,938,801 lbs
51,3-Butadiene106-99-01,898,731 lbs0 lbs1,898,731 lbs
6Allyl alcohol107-18-656,687 lbs0 lbs1,530,217 lbs
7Benzene71-43-2860,862 lbs173 lbs1,159,650 lbs
8Propylene115-07-11,006,756 lbs0 lbs1,006,756 lbs
9Propylene oxide75-56-9748,088 lbs0 lbs821,764 lbs
10Ammonia7664-41-7796,916 lbs9,735 lbs806,651 lbs
11Phenol108-95-22,427 lbs0 lbs742,109 lbs
12Acetonitrile75-05-8373,837 lbs0 lbs726,784 lbs
13Ethylene74-85-1698,385 lbs0 lbs698,385 lbs
14Acetaldehyde75-07-0587,542 lbs0 lbs587,542 lbs
15tert-Butyl alcohol75-65-0109,207 lbs0 lbs557,780 lbs
16Toluene108-88-3263,260 lbs92 lbs522,681 lbs
17n-Butyl alcohol71-36-34,443 lbs0 lbs467,004 lbs
18N-Methyl-2-pyrrolidone872-50-42,753 lbs0 lbs427,839 lbs
19Naphthalene91-20-3293,728 lbs1 lbs295,893 lbs
20Methyl tert-butyl ether1634-04-4232,440 lbs0 lbs253,414 lbs
21n-Hexane110-54-3235,654 lbs0 lbs238,097 lbs
22Isoprene78-79-5159,549 lbs0 lbs159,549 lbs
23Cumene98-82-894,704 lbs0 lbs125,190 lbs
24Xylene (mixed isomers)1330-20-7109,296 lbs17 lbs120,712 lbs
25Tetrachloroethylene127-18-4105,015 lbs0 lbs105,015 lbs
261,2,4-Trimethylbenzene95-63-658,505 lbs2 lbs61,299 lbs
27Dicyclopentadiene77-73-650,970 lbs0 lbs50,970 lbs
28Propionaldehyde123-38-613,598 lbs0 lbs36,618 lbs
29Ethylene oxide75-21-826,715 lbs0 lbs26,715 lbs
30Cyclohexane110-82-713,145 lbs0 lbs18,729 lbs
31Chlorine7782-50-515,020 lbs0 lbs15,020 lbs
32Molybdenum trioxide1313-27-510,461 lbs0 lbs10,461 lbs
33Cyclohexanol108-93-05,782 lbs0 lbs5,782 lbs
34Maleic anhydride108-31-65,323 lbs0 lbs5,323 lbs
35Phenanthrene85-01-83,788 lbs0 lbs3,788 lbs
36Copper compoundsN1000 lbs3,694 lbs3,694 lbs
37Furan110-00-92,941 lbs0 lbs2,941 lbs
38Nickel7440-02-0315 lbs2,572 lbs2,887 lbs
39Crotonaldehyde4170-30-32,750 lbs0 lbs2,750 lbs
40Vinyl acetate108-05-41,376 lbs0 lbs1,376 lbs
41Chromium compounds (except for chromite ore mined in the Transvaal Region)N090356 lbs960 lbs1,316 lbs
42Certain glycol ethersN2301,026 lbs0 lbs1,026 lbs
43sec-Butyl alcohol78-92-2948 lbs0 lbs948 lbs
44Copper And Copper CompoundsN1000 lbs917 lbs917 lbs
45Chromium7440-47-3817 lbs87 lbs904 lbs
46Hydrogen sulfide7783-06-4726 lbs0 lbs726 lbs
47Formic acid64-18-6703 lbs0 lbs703 lbs
48Anthracene120-12-7700 lbs0 lbs700 lbs
49Ethylene glycol107-21-1560 lbs0 lbs560 lbs
50Acrolein107-02-8445 lbs0 lbs445 lbs
51Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090160 lbs282 lbs442 lbs
52Lead7439-92-138 lbs299 lbs337 lbs
531,2-Butylene oxide106-88-7164 lbs0 lbs164 lbs
54Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040125 lbs0 lbs125 lbs
55Barium And Barium CompoundsN040125 lbs0 lbs125 lbs
56Mercury7439-97-622 lbs0 lbs55 lbs
57Polycyclic aromatic compoundsN59035 lbs0 lbs35 lbs
58Dioxin and dioxin-like compoundsN15018 lbs0 lbs18 lbs
59Methyl methacrylate80-62-613 lbs0 lbs13 lbs
60Trichloroethylene79-01-610 lbs0 lbs10 lbs
61Isobutyraldehyde78-84-28 lbs0 lbs8 lbs
62Acetamide60-35-51 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Ethylbenzene, Acetophenone, 1,3-Butadiene, Benzene
View the full list of 52 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(52 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-146,269 lbs0 lbs762,933 lbs
2Ethylbenzene100-41-482,197 lbs0 lbs514,126 lbs
3Acetophenone98-86-210,585 lbs0 lbs370,702 lbs
41,3-Butadiene106-99-0227,200 lbs0 lbs227,200 lbs
5Benzene71-43-2107,132 lbs0 lbs133,099 lbs
6Propylene115-07-1126,126 lbs0 lbs126,126 lbs
7Styrene100-42-525,329 lbs0 lbs118,142 lbs
8Acetonitrile75-05-828,355 lbs0 lbs101,434 lbs
9Propylene oxide75-56-984,847 lbs0 lbs94,712 lbs
10Ammonia7664-41-792,037 lbs826 lbs92,863 lbs
11Allyl alcohol107-18-61,916 lbs0 lbs87,173 lbs
12Acetaldehyde75-07-058,529 lbs0 lbs58,529 lbs
13Ethylene74-85-146,945 lbs0 lbs46,945 lbs
14Toluene108-88-324,247 lbs0 lbs38,113 lbs
15Methyl tert-butyl ether1634-04-431,931 lbs0 lbs33,275 lbs
16n-Hexane110-54-332,549 lbs0 lbs32,549 lbs
17Naphthalene91-20-328,518 lbs0 lbs28,518 lbs
18tert-Butyl alcohol75-65-025,572 lbs0 lbs27,089 lbs
19Isoprene78-79-519,021 lbs0 lbs19,021 lbs
20n-Butyl alcohol71-36-3277 lbs0 lbs14,838 lbs
21Tetrachloroethylene127-18-412,768 lbs0 lbs12,768 lbs
22Xylene (mixed isomers)1330-20-710,501 lbs0 lbs10,501 lbs
23Phenol108-95-2154 lbs0 lbs6,663 lbs
241,2,4-Trimethylbenzene95-63-64,257 lbs0 lbs4,257 lbs
25Dicyclopentadiene77-73-64,145 lbs0 lbs4,145 lbs
26Cumene98-82-81,675 lbs0 lbs3,676 lbs
27Molybdenum trioxide1313-27-53,521 lbs0 lbs3,521 lbs
28Ethylene oxide75-21-83,097 lbs0 lbs3,097 lbs
29N-Methyl-2-pyrrolidone872-50-4130 lbs0 lbs2,482 lbs
30Propionaldehyde123-38-6726 lbs0 lbs2,467 lbs
31Cyclohexane110-82-72,301 lbs0 lbs2,301 lbs
32Furan110-00-91,574 lbs0 lbs1,574 lbs
33Crotonaldehyde4170-30-31,396 lbs0 lbs1,396 lbs
34Chlorine7782-50-51,174 lbs0 lbs1,174 lbs
35Vinyl acetate108-05-4558 lbs0 lbs558 lbs
36sec-Butyl alcohol78-92-2285 lbs0 lbs285 lbs
37Copper And Copper CompoundsN1000 lbs263 lbs263 lbs
38Phenanthrene85-01-8253 lbs0 lbs253 lbs
39Chromium7440-47-3136 lbs32 lbs167 lbs
40Nickel7440-02-036 lbs123 lbs160 lbs
41Lead7439-92-115 lbs64 lbs79 lbs
42Anthracene120-12-749 lbs0 lbs49 lbs
43Formic acid64-18-641 lbs0 lbs41 lbs
44Barium And Barium CompoundsN04035 lbs0 lbs35 lbs
45Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09031 lbs2 lbs33 lbs
46Acrolein107-02-829 lbs0 lbs29 lbs
471,2-Butylene oxide106-88-77 lbs0 lbs7 lbs
48Isobutyraldehyde78-84-24 lbs0 lbs4 lbs
49Mercury7439-97-63 lbs0 lbs3 lbs
50Dioxin and dioxin-like compoundsN1502 lbs0 lbs2 lbs
51Polycyclic aromatic compoundsN5901 lbs0 lbs1 lbs
52Methyl methacrylate80-62-61 lbs0 lbs1 lbs
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