Description
The State of California’s Department of Water Resources (DWR) is seeking qualified contractors to perform geological exploration drilling, well construction, and associated geophysical logging within the Salton Sea watershed. The work includes mud‑rotary drilling of 2‑6 wells, installation of monitoring and extraction wells, well development and testing, and provision of ancillary services such as site security, dust‑suppression water trucks, and access‑road construction. Contractors must hold a valid C‑57 water‑well drilling license, meet DVBE participation requirements, and provide extensive safety, environmental, and insurance documentation. The contract is a fixed‑price, one‑year base period with two optional one‑year extensions, and the total value will be determined from unit‑price tables that include high‑value “special equipment” items.
• Mud‑rotary drilling and well construction (20‑in. conductor casing, 800 ft depth, triple‑nested monitoring wells).
• Full suite of borehole geophysical logs to 600 ft bgs, well development testing (step‑drawdown and constant‑rate).
• Ancillary services: site security, lighting, dust‑suppression water trucks, back‑hoe/skid‑steer for cut‑tings removal, access‑road and well‑pad construction.
• Mandatory pre‑bid conference (Nov 4) and optional site walk (Nov 13); bid submission due Dec 9, 2026.