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Town council approves $5.9M sole-source contract for SCADA phase 5 integration

Town of Castle Rock Town Council · November 18, 2025
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Summary

Council authorized a $5.9 million sole-source contract (plus 10% contingency) with Logical Systems LLC to begin phase 5 of the town's SCADA master plan, citing system consistency and cybersecurity benefits; vote was 6-0.

Mark Marlowe briefed council on the town's supervisory control and data acquisition (SCADA) master plan and requested authorization to begin phase 5 with a sole‑source contract to Logical Systems LLC for $5,900,000 plus a 10% contingency. He said engineers and cybersecurity consultants recommended a single integrator to maintain a unified system architecture and improve long‑term reliability and cybersecurity.

"The contract is 5,900,000," Marlowe said when presenting the recommended construction integrator and timeline; staff explained purchases would begin in January and installation would continue through August 2027. Marlowe acknowledged disadvantages of sole sourcing — the need to guard against vendor lock‑in and to monitor quality assurance — and said the town negotiated the price down by about $250,000 based on engineering review.

Council discussed scope and cyber responsibilities; staff said Tetra Tech remains involved on cybersecurity and that Logical Systems will integrate controls and oversee construction while hardware vendors such as Allen‑Bradley and Rockwell supply equipment. The council voted 6-0 to approve the resolution authorizing the contract and contingency.