📊 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 DOVER ST HOUSTON 77061

Elevation

40.21 ft

Height above sea level from USGS data.

FEMA Flood Zone

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)

Vacant lot (no building data). No structure to calculate damage for.

Depth-Damage Estimate (Neighborhood Comparison)

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: 30.21 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

Moderate

Higher pollution than 64% 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)

101 thousand lbs

High

15.5x more than typical Houston property
≈ 5 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)

101 thousand lbs

High

20.9x 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)

361 lbs

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.

Period	Total	Air	Water
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs	0 lbs
This Property (2014-2024)	101,211 lbs	100,850 lbs	361 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	77,901 lbs	3,140 lbs	24 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

70-79th

5.8%

80-89th

4.3%

90-100thLowest Pollution

34.2%

Higher pollution than 64% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile (higher than average pollution).

Top chemicals released near this property (past 10 years):

Toluene, N-Methyl-2-pyrrolidone, Nitric acid, Formic acid, Copper

View the full list of 20 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (20 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Toluene	108-88-3	63,499 lbs	0 lbs	63,499 lbs
2	N-Methyl-2-pyrrolidone	872-50-4	17,750 lbs	0 lbs	17,750 lbs
3	Nitric acid	7697-37-2	4,015 lbs	0 lbs	4,015 lbs
4	Formic acid	64-18-6	2,598 lbs	0 lbs	3,355 lbs
5	Copper	7440-50-8	2,452 lbs	0 lbs	2,452 lbs
6	Nickel	7440-02-0	2,057 lbs	1 lbs	2,058 lbs
7	Nickel compounds	N495	1,754 lbs	156 lbs	1,910 lbs
8	Chromium	7440-47-3	1,793 lbs	2 lbs	1,795 lbs
9	Ethylene glycol	107-21-1	1,562 lbs	0 lbs	1,562 lbs
10	Nickel And Nickel Compounds	N495	1,505 lbs	13 lbs	1,518 lbs
11	Certain glycol ethers	N230	945 lbs	0 lbs	945 lbs
12	Methanol	67-56-1	558 lbs	0 lbs	558 lbs
13	Diethanolamine	111-42-2	205 lbs	0 lbs	205 lbs
14	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	173 lbs	173 lbs
15	Manganese	7439-96-5	62 lbs	0 lbs	62 lbs
16	Tetrachloroethylene	127-18-4	57 lbs	0 lbs	57 lbs
17	Cyclohexane	110-82-7	31 lbs	0 lbs	31 lbs
18	Zinc compounds	N982	0 lbs	16 lbs	16 lbs
19	Lead	7439-92-1	6 lbs	0 lbs	6 lbs
20	1,2-Dichlorobenzene	95-50-1	1 lbs	0 lbs	1 lbs

Top chemicals released near this property (2024 only):

Diethanolamine, Copper, Nitrilotriacetic acid trisodium salt, Nickel And Nickel Compounds, Toluene

View the full list of 18 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (18 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Water (lbs/yr)	Total (lbs/yr)
1	Diethanolamine	111-42-2	0 lbs	0 lbs	59,628 lbs
2	Copper	7440-50-8	264 lbs	0 lbs	5,330 lbs
3	Nitrilotriacetic acid trisodium salt	5064-31-3	0 lbs	0 lbs	4,472 lbs
4	Nickel And Nickel Compounds	N495	500 lbs	5 lbs	2,858 lbs
5	Toluene	108-88-3	1,510 lbs	0 lbs	1,590 lbs
6	Nitric acid	7697-37-2	500 lbs	0 lbs	1,183 lbs
7	Sodium nitrite	7632-00-0	0 lbs	0 lbs	920 lbs
8	Nickel	7440-02-0	22 lbs	1 lbs	789 lbs
9	Chromium	7440-47-3	14 lbs	2 lbs	434 lbs
10	Formic acid	64-18-6	239 lbs	0 lbs	239 lbs
11	Methanol	67-56-1	46 lbs	0 lbs	126 lbs
12	Manganese	7439-96-5	7 lbs	0 lbs	97 lbs
13	Ethylene glycol	107-21-1	1 lbs	0 lbs	81 lbs
14	Certain glycol ethers	N230	0 lbs	0 lbs	80 lbs
15	Tetrachloroethylene	127-18-4	36 lbs	0 lbs	36 lbs
16	Lead	7439-92-1	1 lbs	0 lbs	23 lbs
17	Zinc compounds	N982	0 lbs	16 lbs	16 lbs
18	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0 lbs	1 lbs	1 lbs