Unimin Quarry Dam
Significant HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Missouri |
| County | Jefferson |
| Nearest City | HERCULANEUM |
| River/Stream | TRIBUTARY TO SANDY CREEK |
| Coordinates | 38.26426, -90.46160 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 4 acres |
Ownership & Safety
| Purpose | Tailings |
| Owner | UNIMIN CORPORATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |