Soil series profile
Maggies soil series
Maggies is a mapped soil with a very fine sandy loam surface, mapped on 37,439 acres in 2 counties in TX. Hydrologic group D.
- Drainage class
- Not reported
- Hydrologic group
- D 100% of mapped acres
- Typical topsoil pH
- 7.9 moderately alkaline · range 7.9–7.9
- Mapped area
- 37k acres in 2 counties, 1 state
Typical Maggies profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–10 in (Ag) | Very fine sandy loam | 7.9 | 18% | 67% | 0.2% |
| 10–80 in (Cg) | Sandy clay loam | 8.2 | 29% | 57% | 0.2% |
What this means
What Maggies soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Maggies soils is moderately alkaline: pH 7.9. Acid-loving plants such as blueberries and azaleas struggle without amended beds, and some trees and shrubs show iron chlorosis (yellow leaves with green veins).
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Maggies acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is very fine sandy loam (100% of mapped Maggies acres).
For lawns and yards
On 100% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.
A seasonal high water table comes within 18 inches of the surface on 100% of mapped acres, often in spring. Basements, sump pumps and lawns in low spots feel it first.
For a septic system
For conventional septic absorption fields, NRCS rates 0% of the acres in mapped Maggies soils very limited, 0% somewhat limited and 0% not limited (100% not rated, such as urban land, pits or water).
Flooding is mapped on 100% of the acres (0% occasional, 100% frequent).
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Maggies soil is found
Mapped acres
Maggies is mapped in Texas.
| County | Acres | Share of county land |
|---|---|---|
| Galveston County, TX | 23,330 | 7.6% |
| Brazoria County, TX | 14,109 | 1.5% |
Septic absorption fields
NRCS rating, share of Maggies acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 0.0% |
| Not rated | 100.0% |
Drainage, water table and flooding
Share of Maggies acres
- Depth to seasonal high water table
- About 0 inches (median where reported); within 18 inches on 100% of acres.
- Flooding
- Mapped as flooding on 100% of acres (0% occasional, 100% frequent).
- Slope
- Typically 0–0% (median 0%).
- Topsoil organic matter
- Median 0.2%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 0.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
| Not rated | 100.0% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 100.0% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 0.0% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Maggies (component kind "Series") in SSURGO: 37,439 acres.
- Method
- Shares are by mapped acres of Maggies components. The profile comes from the single largest Maggies component. Full methodology.