FARMINGTON — The second annual compost sale at Sandy River Recycling Association’s facility off the Dump Road will be held from 7 a.m. to 2:30 p.m. on Friday and Saturday, May 24 and 25.

What doesn’t sell on those two days will be available the following week until it is all sold.

The cost is $30 a cubic yard, $22 for a skid steer bucket load (enough to fill a pickup truck) and $3 for a five-gallon bucket.

“We had a good turnout last year. We sold about 100 tons, filling everything from five-gallon buckets to pickup trucks with our year-in-the-making screened compost. We hope to do the same this year,” Ron Slater, manager of the nonprofit Sandy River Recycling Association, said. SRRA is the only publicly licensed compost operation in Maine, he said.

The use of a rented portable rotary screen, made by the Thomas Bandsaw Mills in Brooks, ensures that the compost is a fine grade, easy to work into a garden, said Slater, who will be screening the compost for a week prior to the sale.

Not only is the screen Maine-made, the raw materials that went into the making of the compost are also local.

Food scraps from the University of Maine at Farmington’s cafeteria, collected and delivered to SRRA by UMF work-study students, and from the Mallett School cafeteria were mixed with manure from the Farmington Fairgrounds and leaves collected by the Farmington Public Works Department.

Slater reminds people that the value of the compost, which is analyzed annually at the University of Maine, is the organic matter and microbial life it will add to  garden soil.

“It’s not a fertilizer, though there are trace amounts of nitrogen, phosphorous and potassium in it, and the pH is 7.5, perfect for most garden vegetables,” Slater said.

For more information, contact Slater at 778-3254.