Well 115 Maintenance & Rehabilitation

The City of Aurora is seeking qualified well equipment and maintenance contractors to provide all labor, materials, transportation, tools, supplies, equipment, and appurtenances necessary to complete the satisfactory rehabilitation of existing Well 115 for the Water Production Division.

The existing Well 115 was originally constructed in 1988 and was completed in drift formations and is gravel packed. The well consists of 12-inch casing (pitless adapter), 20-inch casing extending from +1.5' to 90 feet below ground surface and is screened from 90 feet to a total depth of 135 feet.

The primary purpose and intent of this project is formation redevelopment, combined with inspection and repair/replacement of all related well equipment as needed, including cables, pump, motor, and column piping.

Over-pumping of the formation with the existing pump has been a long-standing operational issue and is currently mitigated through throttling of the discharge line valve. "Right-sizing" of the well's production to maintain a safe pumping level via pump redesign and aquifer formation redevelopment accompanied by well-screen cleaning is intended to achieve sustainable pumping without throttling the discharge flow.