Wastewater treatment plants turn wastewater into high quality recycled water that is used to water a golf course and Serrano home landscaping. But there is always something left over. It’s called sludge.
Deer Creek and El Dorado Hills wastewater treatment plants generate 5,500 tons of sludge annually. The sludge has to go somewhere. It either goes to a landfill or is spread on some farmer’s field. The El Dorado Irrigaiton District staff preferred that latter as being the most economical.
Each year there is one outfit that hauls off the sludge and spreads it on regulated agricultural land — Synagro. This year the staff asked for bids and Synagro came in with the low bid, agreeing to continue at its original 2009 low-bid price with no price increase for the length of the contract extension
The disposal site itself “does not lend itself to formal competitive bidding.” The sites have to be approved by the Environmental Protection Agency. Synagro operates the 3,000-acre Silva Ranch disposal site on Twin Cities Road in Sacramento County.
The two-year contract shows the same hauling price of $15 per ton in 2013 and 2014. The disposal prices per ton is $23.40 this year and $24.40 next year. Two-year total contract price is $427,900.
The contract was approved as part of the consent calendar by the EID board Feb. 11.