Sedimentation Pond No 11 Stage 1
Sedimentation Pond No 11 Stage 1 is an earth dam located in Leon County, Texas. It carries a Low hazard potential classification.
About Sedimentation Pond No 11 Stage 1
The primary purpose of Sedimentation Pond No 11 Stage 1 is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Texas Westmoreland Coal Co (private). It impounds the Red Hollow Creek.
The dam stands 20 feet tall, creates a reservoir covering 7 acres, has a maximum storage capacity of 192 acre-feet, and collects water from a drainage area of 1 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Texas |
| County | Leon |
| River/Stream | Red Hollow Creek |
| Coordinates | 31.42222, -96.21694 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
Storage & Hydraulics
| NID Storage | 192 acre-ft |
| Max Storage | 192 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Tailings |
| Owner | TEXAS WESTMORELAND COAL CO |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX09123 |
| Federal ID | TX09123 |
| More Info | State Dam Safety Program |