As a construction project manager, to properly evaluate a developing overrun on the operation of "place foundation concrete," several key categories of information would be essential on a cost control report. Here are some general categories of information you would want to have:

$1.**$Budgeted Cost$**$: The initial budgeted cost for the "place foundation concrete" operation. This would serve as a baseline for comparison with actual costs.

$2.**$Actual Cost to Date$**$: The actual costs incurred up to the current point in time for the "place foundation concrete" operation. This would include all expenses related to labor, materials, equipment, subcontractors, and any other relevant costs.

$3.**$Projected Total Cost$**$: An estimate of the total cost expected for the entire "place foundation concrete" operation based on the current progress and any anticipated changes or additional expenses.

$4.**$Cost Variance$**$: A comparison between the budgeted cost and the actual cost incurred to date, expressed as a variance in both absolute terms and as a percentage. This would indicate whether costs are over or under budget at the current stage of the operation.

$5.**$Forecasted Cost to Complete$**$: An estimate of the remaining costs needed to complete the "place foundation concrete" operation based on the current progress and any anticipated changes or additional expenses.

$6.**$Cost Containment Measures$**$: Any actions or strategies being implemented to control costs and mitigate overruns. This could include measures such as renegotiating contracts, optimizing resource utilization, or revising project schedules.

$7.**$Root Causes of Overrun$**$: Identification of the factors contributing to the developing overrun, such as unexpected delays, changes in scope, labor shortages, or material price increases.

$8.**$Mitigation Strategies$**$: Proposed strategies for addressing the developing overrun and bringing costs back in line with the budget. This could involve adjusting project schedules, reallocating resources, seeking alternative suppliers, or negotiating change orders.

$9.**$Communication Plan$**$: A plan for communicating the cost overrun situation to relevant stakeholders, including project owners, clients, and subcontractors. This would ensure transparency and facilitate collaborative problem$-$solving.

$10.**$Risk Assessment$**$: An evaluation of potential risks and uncertainties that could further impact costs during the remaining five weeks of the "place foundation concrete" operation. This would help in proactive risk management and contingency planning.

By closely monitoring these key categories of information on the cost control report, a construction project manager can effectively identify, evaluate, and address developing overruns in the "place foundation concrete" operation, ensuring that the project stays on track financially and meets its objectives.