During a routine inspection, District Property Management identified water loss in the chain of connected basins on November 5, 2025. As water drained, the basins gradually became isolated because the water level was no longer high enough to overflow into the stormwater system.
By November 21, 2025, only a few inches of water remained in Basin 15-BX-04, and no depression was visible, so the cause of the loss was not yet identifiable. On November 24, 2025, the basin was found empty, and a roughly two-foot-wide depression became visible. Heavy rain on December 7, 2025, partially refilled the basin, covering the depression and preventing repairs.
For an accurate assessment of a geological anomaly, the ground subsidence area must be fully accessible, empty, and dry. Currently, these conditions are not met. There is no specialized technology available that would allow immediate repairs. Dewatering the basin would be costly, highly weather-dependent, would first require a geotechnical survey to evaluate groundwater conditions and determine feasibility, and would pose a risk for flooding hazards.
Basin 15-BX-04 is connected by the stormwater pipe system to several other basins. Unfortunately, there is no way to stop those interconnections without risking flooding because it is a closed, gravity-fed system. The repercussions of blocking the water flow to Basin 15-BX-04 could be flooding occurring along McNeil Drive from Denise Drive to Bexley Trail where there are 38 stormwater drain inlets, the Well Point Recreation parking lot, the St. Topez Recreation Center parking lot, houses numbered 1618-1652 where there are 6 stormwater inlets on Truax Loop, houses numbered 1647-1661 where there are 2 stormwater drain inlets on Roosa Run, and the entirety of Victoria Villas where there are 11 stormwater drain inlets.
Although there is limited new information to report at this moment, Staff continues to monitor the affected areas closely and will reassess the depression with geotechnical engineers once conditions will allow access. Presently, the basin appears to be approximately a couple of inches lower than last week and continuing to drain slowly. Once the area is dry enough to safely accommodate the necessary equipment, remediation efforts will be initiated promptly.
For additional information, please contact District Property Management at 352-753-4022.