Hi Z - The below are our internal guidelines, hope it helps. I'm open to suggestions for improvement as well.
Environmental swabbing - Salmonella (negative) and Listeria spp (negative), weekly on a rotational basis
Clean Equipment Swab: Post clean, prior to use: Weekly (APC <500/ml, coliform<20/ml, Y&M<100 /ml, and ATP(<10RLU)
Environmental Air : Y&M (<15 cfu or <100/ml) test locations such as near air ducts or vent outlets, wall opening, and doorways
Compressed Air: Y&M (<15 cfu or <100 /ml) swab air gun/end of point of use for Y&M
Water: Monthly Coliform/Generic E. coli MPN less than 1.1 per 100ml; APC<500/ml; Annually Chlorine Minimum 0.1 ppm or mg/L (Max 3.0 ppm) by third party lab (can be done more often as required internally with kit)
Hand Swabbing: Annually on random employees, using ATP (for training purpose) and Sponges APC<100 cfu/10cm2 per hand; Coliform <10/ml (for verifying effective hand washing)