Certified Payroll, Apprentice Ratio, and Concrete Washout
Ridgeline Construction is the GC on a $5.2 million public school project subject to state prevailing-wage law and certified-payroll reporting. The owner withholds 5% retainage from Ridgeline. Ridgeline's subcontract with its concrete sub also withholds 5% retainage, so the sub sees 10% held on its work. The state's approved apprenticeship ratio is one apprentice to five journeymen per trade unless a program approval states otherwise. On Friday, the concrete sub's certified payroll shows 3 apprentices and 8 journeymen. Two apprentices are paid $18 per hour; the journeyman rate is $42 per hour plus $14 per hour in fringe benefits. The apprentices' registration numbers are missing from the payroll. Site logs show a concrete washout pit located 15 feet from a storm drain. The SWPPP requires inspections every 7 days and after any 0.5-inch rain. The last inspection was 12 days ago; 1.2 inches of rain fell yesterday, and the washout pit is near overflowing.
1. Identify the prevailing-wage, apprenticeship, and certified-payroll compliance issues and state the immediate corrective steps.
Read the worked answer
There are at least four compliance problems. First, the apprentice ratio appears to exceed the approved 1-to-5 ratio. With 8 journeymen, the maximum is normally 1 apprentice unless the approved program provides a different ratio; 3 apprentices is likely a violation. Second, the apprentice wage rate must be a specific percentage of the journeyman rate under the approved program, and $18 per hour against a $42 base rate may be below the required apprentice rate. Third, missing registration numbers prevent verification that the apprentices are properly enrolled. Fourth, certified payroll must show correct classifications, base rates, fringe benefits, and deductions; incomplete or inaccurate payroll can trigger withholding and penalties.
Ridgeline should immediately request corrected certified payroll, including apprentice registration numbers, approved ratios, and wage calculations. It should verify the apprentices' enrollment with the state apprenticeship agency and determine whether the ratio violation is isolated or recurring. If wages are underpaid, the sub must pay restitution promptly. Ridgeline should withhold further payments only as permitted by the contract and state law, and it should document the correction. It should also audit the other trades for similar ratio and classification errors before the next payroll submission.
2. Is the 10% total retainage permissible, and what should Ridgeline do about it?
Read the worked answer
The 10% total retainage is likely problematic. The owner is withholding 5%, and Ridgeline is withholding another 5% from the concrete sub. Many state public-works statutes limit retainage on subcontracts to the amount the owner withholds, or cap total retainage at 5% unless specific conditions are met. Even where a greater amount is allowed, doubling retainage can create a windfall for the GC and a cash-flow crisis for the sub. Ridgeline should review the state statute, the prime contract, and the subcontract's retainage clause before defending the practice.
If the total exceeds the statutory cap, Ridgeline should release the excess retainage promptly and correct the subcontract for future payments. It should not wait for final completion to address the issue. Ridgeline should also verify that retainage is held in the required account, that interest is handled correctly, and that the sub has received proper notice. If the state permits retainage to be reduced or eliminated after substantial completion, Ridgeline should follow that process. Because retainage disputes can lead to stop-payment notices, liens, or claims, Ridgeline should document the correction and confirm the sub's agreement to the revised amount.
3. What environmental violations are presented by the washout pit and inspection records, and what should be done before the next rain?
Read the worked answer
The washout pit is too close to the storm drain and is near overflowing. Concrete washout water is highly alkaline and can violate stormwater permits if it discharges. The SWPPP likely requires washout areas to be lined, contained, and located away from drains and waters of the state. A 15-foot setback may be inadequate under the site's BMPs, especially with an overflow risk.
The inspection record is also deficient. The SWPPP requires inspections every 7 days and after 0.5 inch of rain; the last inspection was 12 days ago, and 1.2 inches fell yesterday. Ridgeline missed both the weekly and post-rain inspection. Before the next rain, Ridgeline should stop using the pit, pump or vacuum the liquid into a permitted container, remove and properly dispose of the concrete solids, and install a new lined washout area with adequate capacity and setback. It should inspect all storm drains, install inlet protection if not present, and document the corrective action with photographs.
Ridgeline should also complete and sign a corrective-action report, update the SWPPP if the BMP location changes, and retrain the concrete crew. If a discharge occurred, Ridgeline should evaluate whether it must notify the state and should preserve the inspection and maintenance records. The GC should audit the sub's environmental compliance before the next concrete pour.